java -ea -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -s ../../../trunk/examples/settings/ai/array-bench/reach_32bit_array_oct.epf -i ../../../trunk/examples/programs/20170304-DifficultPathPrograms/invert_string.i_4.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fa1c628-m [2019-01-31 14:56:29,735 INFO L170 SettingsManager]: Resetting all preferences to default values... [2019-01-31 14:56:29,737 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2019-01-31 14:56:29,749 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2019-01-31 14:56:29,782 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/array-bench/reach_32bit_array_oct.epf [2019-01-31 14:56:29,795 INFO L110 SettingsManager]: Loading preferences was successful [2019-01-31 14:56:29,795 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2019-01-31 14:56:29,796 INFO L131 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2019-01-31 14:56:29,796 INFO L133 SettingsManager]: * Show backtranslation warnings=false [2019-01-31 14:56:29,796 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-01-31 14:56:29,796 INFO L133 SettingsManager]: * User list type=DISABLED [2019-01-31 14:56:29,797 INFO L133 SettingsManager]: * Inline calls to unimplemented procedures=true [2019-01-31 14:56:29,797 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-01-31 14:56:29,797 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-01-31 14:56:29,797 INFO L133 SettingsManager]: * Underlying domain=OctagonDomain [2019-01-31 14:56:29,797 INFO L133 SettingsManager]: * Abstract domain=ArrayDomain [2019-01-31 14:56:29,798 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-01-31 14:56:29,798 INFO L133 SettingsManager]: * Interval Domain=false [2019-01-31 14:56:29,799 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-01-31 14:56:29,799 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2019-01-31 14:56:29,799 INFO L133 SettingsManager]: * Use SBE=true [2019-01-31 14:56:29,799 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-01-31 14:56:29,799 INFO L133 SettingsManager]: * sizeof long=4 [2019-01-31 14:56:29,800 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2019-01-31 14:56:29,800 INFO L133 SettingsManager]: * sizeof POINTER=4 [2019-01-31 14:56:29,800 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2019-01-31 14:56:29,800 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-01-31 14:56:29,800 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-01-31 14:56:29,800 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-01-31 14:56:29,801 INFO L133 SettingsManager]: * sizeof long double=12 [2019-01-31 14:56:29,801 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2019-01-31 14:56:29,801 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-01-31 14:56:29,801 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-01-31 14:56:29,802 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-01-31 14:56:29,802 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2019-01-31 14:56:29,802 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:8092 -smt2 -in -t:10000 [2019-01-31 14:56:29,802 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-01-31 14:56:29,802 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-01-31 14:56:29,803 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-01-31 14:56:29,803 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-01-31 14:56:29,803 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-01-31 14:56:29,803 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:8092 -smt2 -in [2019-01-31 14:56:29,803 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-01-31 14:56:29,803 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-01-31 14:56:29,832 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-01-31 14:56:29,844 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-01-31 14:56:29,848 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-01-31 14:56:29,849 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2019-01-31 14:56:29,850 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2019-01-31 14:56:29,851 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/invert_string.i_4.bpl [2019-01-31 14:56:29,851 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/invert_string.i_4.bpl' [2019-01-31 14:56:29,911 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-01-31 14:56:29,913 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-01-31 14:56:29,914 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-01-31 14:56:29,914 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-01-31 14:56:29,915 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2019-01-31 14:56:29,933 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "invert_string.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 31.01 02:56:29" (1/1) ... [2019-01-31 14:56:29,948 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "invert_string.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 31.01 02:56:29" (1/1) ... [2019-01-31 14:56:29,957 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-01-31 14:56:29,958 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-01-31 14:56:29,958 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-01-31 14:56:29,958 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2019-01-31 14:56:29,970 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "invert_string.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 31.01 02:56:29" (1/1) ... [2019-01-31 14:56:29,971 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "invert_string.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 31.01 02:56:29" (1/1) ... [2019-01-31 14:56:29,973 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "invert_string.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 31.01 02:56:29" (1/1) ... [2019-01-31 14:56:29,973 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "invert_string.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 31.01 02:56:29" (1/1) ... [2019-01-31 14:56:29,979 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "invert_string.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 31.01 02:56:29" (1/1) ... [2019-01-31 14:56:29,982 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "invert_string.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 31.01 02:56:29" (1/1) ... [2019-01-31 14:56:29,983 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "invert_string.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 31.01 02:56:29" (1/1) ... [2019-01-31 14:56:29,984 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-01-31 14:56:29,985 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-01-31 14:56:29,985 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-01-31 14:56:29,985 INFO L276 PluginConnector]: RCFGBuilder initialized [2019-01-31 14:56:29,989 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "invert_string.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 31.01 02:56:29" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:8092 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:8092 -smt2 -in -t:10000 [2019-01-31 14:56:30,049 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-01-31 14:56:30,049 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-01-31 14:56:30,566 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-01-31 14:56:30,566 INFO L286 CfgBuilder]: Removed 3 assue(true) statements. [2019-01-31 14:56:30,568 INFO L202 PluginConnector]: Adding new model invert_string.i_4.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 02:56:30 BoogieIcfgContainer [2019-01-31 14:56:30,568 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-01-31 14:56:30,569 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-01-31 14:56:30,569 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-01-31 14:56:30,572 INFO L276 PluginConnector]: TraceAbstraction initialized [2019-01-31 14:56:30,572 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "invert_string.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 31.01 02:56:29" (1/2) ... [2019-01-31 14:56:30,573 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@98e8340 and model type invert_string.i_4.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.01 02:56:30, skipping insertion in model container [2019-01-31 14:56:30,574 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "invert_string.i_4.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 02:56:30" (2/2) ... [2019-01-31 14:56:30,575 INFO L112 eAbstractionObserver]: Analyzing ICFG invert_string.i_4.bpl [2019-01-31 14:56:30,585 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-01-31 14:56:30,593 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-01-31 14:56:30,610 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-01-31 14:56:30,642 INFO L382 AbstractCegarLoop]: Interprodecural is true [2019-01-31 14:56:30,643 INFO L383 AbstractCegarLoop]: Hoare is true [2019-01-31 14:56:30,643 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-01-31 14:56:30,643 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-01-31 14:56:30,643 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-01-31 14:56:30,643 INFO L387 AbstractCegarLoop]: Difference is false [2019-01-31 14:56:30,644 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-01-31 14:56:30,644 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-01-31 14:56:30,662 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states. [2019-01-31 14:56:30,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-01-31 14:56:30,677 INFO L394 BasicCegarLoop]: Found error trace [2019-01-31 14:56:30,678 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-01-31 14:56:30,682 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2019-01-31 14:56:30,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-31 14:56:30,690 INFO L82 PathProgramCache]: Analyzing trace with hash 928714, now seen corresponding path program 1 times [2019-01-31 14:56:30,692 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-01-31 14:56:30,745 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-31 14:56:30,746 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-31 14:56:30,746 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-31 14:56:30,746 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-01-31 14:56:30,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-31 14:56:30,904 INFO L273 TraceCheckUtils]: 0: Hoare triple {10#true} havoc main_#res;havoc main_#t~nondet0, main_#t~nondet2, main_#t~post1, main_#t~post4, main_#t~post3, main_#t~post6, main_#t~post5, main_~MAX~6, main_~str1~6, main_~str2~6, main_~cont~6, main_~i~6, main_~j~6;main_~MAX~6 := (if main_#t~nondet0 % 4294967296 % 4294967296 <= 2147483647 then main_#t~nondet0 % 4294967296 % 4294967296 else main_#t~nondet0 % 4294967296 % 4294967296 - 4294967296);havoc main_#t~nondet0;havoc main_~str1~6;havoc main_~str2~6;havoc main_~cont~6;havoc main_~i~6;havoc main_~j~6;main_~cont~6 := 0;main_~i~6 := 0; {10#true} is VALID [2019-01-31 14:56:30,909 INFO L273 TraceCheckUtils]: 1: Hoare triple {10#true} assume !(main_~i~6 < main_~MAX~6);main_~str1~6 := main_~str1~6[main_~MAX~6 - 1 := 0];main_~j~6 := 0;main_~i~6 := main_~MAX~6 - 1; {12#(<= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 1))} is VALID [2019-01-31 14:56:30,912 INFO L273 TraceCheckUtils]: 2: Hoare triple {12#(<= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 1))} assume !(main_~i~6 >= 0);main_~j~6 := main_~MAX~6 - 1;main_~i~6 := 0;assume !!(main_~i~6 < main_~MAX~6);__VERIFIER_assert_#in~cond := (if main_~str1~6[main_~i~6] == main_~str2~6[main_~j~6] then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond;assume __VERIFIER_assert_~cond == 0;assume !false; {11#false} is VALID [2019-01-31 14:56:30,913 INFO L273 TraceCheckUtils]: 3: Hoare triple {11#false} assume !false; {11#false} is VALID [2019-01-31 14:56:30,916 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-31 14:56:30,918 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-31 14:56:30,918 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-01-31 14:56:30,918 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-01-31 14:56:30,924 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2019-01-31 14:56:30,925 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-01-31 14:56:30,929 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2019-01-31 14:56:30,971 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 4 edges. 4 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-01-31 14:56:30,971 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-01-31 14:56:30,978 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-01-31 14:56:30,979 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-01-31 14:56:30,983 INFO L87 Difference]: Start difference. First operand 7 states. Second operand 3 states. [2019-01-31 14:56:31,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 14:56:31,090 INFO L93 Difference]: Finished difference Result 10 states and 12 transitions. [2019-01-31 14:56:31,090 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-01-31 14:56:31,090 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2019-01-31 14:56:31,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-31 14:56:31,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-01-31 14:56:31,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 12 transitions. [2019-01-31 14:56:31,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-01-31 14:56:31,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 12 transitions. [2019-01-31 14:56:31,103 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 12 transitions. [2019-01-31 14:56:31,200 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 12 edges. 12 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-01-31 14:56:31,210 INFO L225 Difference]: With dead ends: 10 [2019-01-31 14:56:31,210 INFO L226 Difference]: Without dead ends: 6 [2019-01-31 14:56:31,213 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-01-31 14:56:31,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6 states. [2019-01-31 14:56:31,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6 to 6. [2019-01-31 14:56:31,248 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-01-31 14:56:31,249 INFO L82 GeneralOperation]: Start isEquivalent. First operand 6 states. Second operand 6 states. [2019-01-31 14:56:31,250 INFO L74 IsIncluded]: Start isIncluded. First operand 6 states. Second operand 6 states. [2019-01-31 14:56:31,250 INFO L87 Difference]: Start difference. First operand 6 states. Second operand 6 states. [2019-01-31 14:56:31,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 14:56:31,251 INFO L93 Difference]: Finished difference Result 6 states and 7 transitions. [2019-01-31 14:56:31,252 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states and 7 transitions. [2019-01-31 14:56:31,252 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-31 14:56:31,252 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-01-31 14:56:31,253 INFO L74 IsIncluded]: Start isIncluded. First operand 6 states. Second operand 6 states. [2019-01-31 14:56:31,253 INFO L87 Difference]: Start difference. First operand 6 states. Second operand 6 states. [2019-01-31 14:56:31,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 14:56:31,254 INFO L93 Difference]: Finished difference Result 6 states and 7 transitions. [2019-01-31 14:56:31,255 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states and 7 transitions. [2019-01-31 14:56:31,255 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-31 14:56:31,255 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-01-31 14:56:31,255 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-01-31 14:56:31,256 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-01-31 14:56:31,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2019-01-31 14:56:31,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 7 transitions. [2019-01-31 14:56:31,261 INFO L78 Accepts]: Start accepts. Automaton has 6 states and 7 transitions. Word has length 4 [2019-01-31 14:56:31,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-31 14:56:31,262 INFO L480 AbstractCegarLoop]: Abstraction has 6 states and 7 transitions. [2019-01-31 14:56:31,262 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-01-31 14:56:31,262 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states and 7 transitions. [2019-01-31 14:56:31,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-01-31 14:56:31,263 INFO L394 BasicCegarLoop]: Found error trace [2019-01-31 14:56:31,263 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-01-31 14:56:31,263 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2019-01-31 14:56:31,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-31 14:56:31,264 INFO L82 PathProgramCache]: Analyzing trace with hash 28791948, now seen corresponding path program 1 times [2019-01-31 14:56:31,264 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-01-31 14:56:31,265 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-31 14:56:31,265 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-31 14:56:31,265 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-31 14:56:31,266 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-01-31 14:56:31,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-31 14:56:31,452 INFO L273 TraceCheckUtils]: 0: Hoare triple {52#true} havoc main_#res;havoc main_#t~nondet0, main_#t~nondet2, main_#t~post1, main_#t~post4, main_#t~post3, main_#t~post6, main_#t~post5, main_~MAX~6, main_~str1~6, main_~str2~6, main_~cont~6, main_~i~6, main_~j~6;main_~MAX~6 := (if main_#t~nondet0 % 4294967296 % 4294967296 <= 2147483647 then main_#t~nondet0 % 4294967296 % 4294967296 else main_#t~nondet0 % 4294967296 % 4294967296 - 4294967296);havoc main_#t~nondet0;havoc main_~str1~6;havoc main_~str2~6;havoc main_~cont~6;havoc main_~i~6;havoc main_~j~6;main_~cont~6 := 0;main_~i~6 := 0; {54#(<= ULTIMATE.start_main_~i~6 0)} is VALID [2019-01-31 14:56:31,467 INFO L273 TraceCheckUtils]: 1: Hoare triple {54#(<= ULTIMATE.start_main_~i~6 0)} assume !(main_~i~6 < main_~MAX~6);main_~str1~6 := main_~str1~6[main_~MAX~6 - 1 := 0];main_~j~6 := 0;main_~i~6 := main_~MAX~6 - 1; {55#(<= (+ ULTIMATE.start_main_~i~6 1) 0)} is VALID [2019-01-31 14:56:31,483 INFO L273 TraceCheckUtils]: 2: Hoare triple {55#(<= (+ ULTIMATE.start_main_~i~6 1) 0)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {53#false} is VALID [2019-01-31 14:56:31,484 INFO L273 TraceCheckUtils]: 3: Hoare triple {53#false} assume !(main_~i~6 >= 0);main_~j~6 := main_~MAX~6 - 1;main_~i~6 := 0;assume !!(main_~i~6 < main_~MAX~6);__VERIFIER_assert_#in~cond := (if main_~str1~6[main_~i~6] == main_~str2~6[main_~j~6] then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond;assume __VERIFIER_assert_~cond == 0;assume !false; {53#false} is VALID [2019-01-31 14:56:31,484 INFO L273 TraceCheckUtils]: 4: Hoare triple {53#false} assume !false; {53#false} is VALID [2019-01-31 14:56:31,485 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-31 14:56:31,485 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-31 14:56:31,485 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-01-31 14:56:31,485 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-01-31 14:56:31,487 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 5 [2019-01-31 14:56:31,487 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-01-31 14:56:31,487 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states. [2019-01-31 14:56:31,520 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 5 edges. 5 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-01-31 14:56:31,520 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-01-31 14:56:31,520 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-01-31 14:56:31,521 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-01-31 14:56:31,521 INFO L87 Difference]: Start difference. First operand 6 states and 7 transitions. Second operand 4 states. [2019-01-31 14:56:31,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 14:56:31,760 INFO L93 Difference]: Finished difference Result 11 states and 13 transitions. [2019-01-31 14:56:31,760 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-01-31 14:56:31,761 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 5 [2019-01-31 14:56:31,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-31 14:56:31,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2019-01-31 14:56:31,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 12 transitions. [2019-01-31 14:56:31,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2019-01-31 14:56:31,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 12 transitions. [2019-01-31 14:56:31,764 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states and 12 transitions. [2019-01-31 14:56:31,804 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 12 edges. 12 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-01-31 14:56:31,805 INFO L225 Difference]: With dead ends: 11 [2019-01-31 14:56:31,805 INFO L226 Difference]: Without dead ends: 7 [2019-01-31 14:56:31,806 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-01-31 14:56:31,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states. [2019-01-31 14:56:31,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2019-01-31 14:56:31,821 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-01-31 14:56:31,821 INFO L82 GeneralOperation]: Start isEquivalent. First operand 7 states. Second operand 7 states. [2019-01-31 14:56:31,822 INFO L74 IsIncluded]: Start isIncluded. First operand 7 states. Second operand 7 states. [2019-01-31 14:56:31,822 INFO L87 Difference]: Start difference. First operand 7 states. Second operand 7 states. [2019-01-31 14:56:31,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 14:56:31,823 INFO L93 Difference]: Finished difference Result 7 states and 8 transitions. [2019-01-31 14:56:31,823 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 8 transitions. [2019-01-31 14:56:31,823 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-31 14:56:31,824 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-01-31 14:56:31,824 INFO L74 IsIncluded]: Start isIncluded. First operand 7 states. Second operand 7 states. [2019-01-31 14:56:31,824 INFO L87 Difference]: Start difference. First operand 7 states. Second operand 7 states. [2019-01-31 14:56:31,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 14:56:31,825 INFO L93 Difference]: Finished difference Result 7 states and 8 transitions. [2019-01-31 14:56:31,826 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 8 transitions. [2019-01-31 14:56:31,827 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-31 14:56:31,827 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-01-31 14:56:31,827 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-01-31 14:56:31,828 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-01-31 14:56:31,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2019-01-31 14:56:31,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 8 transitions. [2019-01-31 14:56:31,829 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 8 transitions. Word has length 5 [2019-01-31 14:56:31,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-31 14:56:31,829 INFO L480 AbstractCegarLoop]: Abstraction has 7 states and 8 transitions. [2019-01-31 14:56:31,830 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-01-31 14:56:31,830 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 8 transitions. [2019-01-31 14:56:31,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-01-31 14:56:31,830 INFO L394 BasicCegarLoop]: Found error trace [2019-01-31 14:56:31,830 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2019-01-31 14:56:31,831 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2019-01-31 14:56:31,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-31 14:56:31,831 INFO L82 PathProgramCache]: Analyzing trace with hash 894131125, now seen corresponding path program 1 times [2019-01-31 14:56:31,831 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-01-31 14:56:31,832 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-31 14:56:31,832 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-31 14:56:31,833 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-31 14:56:31,833 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-01-31 14:56:31,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-31 14:56:32,301 INFO L273 TraceCheckUtils]: 0: Hoare triple {103#true} havoc main_#res;havoc main_#t~nondet0, main_#t~nondet2, main_#t~post1, main_#t~post4, main_#t~post3, main_#t~post6, main_#t~post5, main_~MAX~6, main_~str1~6, main_~str2~6, main_~cont~6, main_~i~6, main_~j~6;main_~MAX~6 := (if main_#t~nondet0 % 4294967296 % 4294967296 <= 2147483647 then main_#t~nondet0 % 4294967296 % 4294967296 else main_#t~nondet0 % 4294967296 % 4294967296 - 4294967296);havoc main_#t~nondet0;havoc main_~str1~6;havoc main_~str2~6;havoc main_~cont~6;havoc main_~i~6;havoc main_~j~6;main_~cont~6 := 0;main_~i~6 := 0; {105#(or (and (<= ULTIMATE.start_main_~i~6 0) (<= 0 ULTIMATE.start_main_~i~6)) (not (= (+ ULTIMATE.start_main_~i~6 1) ULTIMATE.start_main_~MAX~6)))} is VALID [2019-01-31 14:56:32,303 INFO L273 TraceCheckUtils]: 1: Hoare triple {105#(or (and (<= ULTIMATE.start_main_~i~6 0) (<= 0 ULTIMATE.start_main_~i~6)) (not (= (+ ULTIMATE.start_main_~i~6 1) ULTIMATE.start_main_~MAX~6)))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {106#(or (<= (+ ULTIMATE.start_main_~i~6 1) ULTIMATE.start_main_~MAX~6) (= 1 ULTIMATE.start_main_~MAX~6))} is VALID [2019-01-31 14:56:32,305 INFO L273 TraceCheckUtils]: 2: Hoare triple {106#(or (<= (+ ULTIMATE.start_main_~i~6 1) ULTIMATE.start_main_~MAX~6) (= 1 ULTIMATE.start_main_~MAX~6))} assume !(main_~i~6 < main_~MAX~6);main_~str1~6 := main_~str1~6[main_~MAX~6 - 1 := 0];main_~j~6 := 0;main_~i~6 := main_~MAX~6 - 1; {107#(= (+ ULTIMATE.start_main_~j~6 1) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:56:32,310 INFO L273 TraceCheckUtils]: 3: Hoare triple {107#(= (+ ULTIMATE.start_main_~j~6 1) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {108#(= (select ULTIMATE.start_main_~str1~6 0) (select ULTIMATE.start_main_~str2~6 (+ ULTIMATE.start_main_~MAX~6 (- 1))))} is VALID [2019-01-31 14:56:32,311 INFO L273 TraceCheckUtils]: 4: Hoare triple {108#(= (select ULTIMATE.start_main_~str1~6 0) (select ULTIMATE.start_main_~str2~6 (+ ULTIMATE.start_main_~MAX~6 (- 1))))} assume !(main_~i~6 >= 0);main_~j~6 := main_~MAX~6 - 1;main_~i~6 := 0;assume !!(main_~i~6 < main_~MAX~6);__VERIFIER_assert_#in~cond := (if main_~str1~6[main_~i~6] == main_~str2~6[main_~j~6] then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond;assume __VERIFIER_assert_~cond == 0;assume !false; {104#false} is VALID [2019-01-31 14:56:32,311 INFO L273 TraceCheckUtils]: 5: Hoare triple {104#false} assume !false; {104#false} is VALID [2019-01-31 14:56:32,312 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-31 14:56:32,312 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-31 14:56:32,313 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-01-31 14:56:32,314 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 7 with the following transitions: [2019-01-31 14:56:32,315 INFO L207 CegarAbsIntRunner]: [0], [5], [7], [12], [14], [16] [2019-01-31 14:56:32,372 INFO L148 AbstractInterpreter]: Using domain ArrayDomain [2019-01-31 14:56:32,373 INFO L101 FixpointEngine]: Starting fixpoint engine with domain ArrayDomain (maxUnwinding=3, maxParallelStates=2) [2019-01-31 14:56:32,477 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2019-01-31 14:57:58,808 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2019-01-31 14:57:58,809 INFO L272 AbstractInterpreter]: Visited 6 different actions 125 times. Merged at 5 different actions 82 times. Widened at 4 different actions 56 times. Found 36 fixpoints after 3 different actions. Largest state had 0 variables. [2019-01-31 14:57:58,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-31 14:57:58,814 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-01-31 14:57:58,814 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-31 14:57:58,814 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-01-31 14:57:58,826 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-31 14:57:58,826 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2019-01-31 14:57:58,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-31 14:57:58,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-31 14:57:58,852 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-31 14:57:59,027 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2019-01-31 14:57:59,032 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-01-31 14:57:59,042 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-31 14:57:59,042 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:15, output treesize:14 [2019-01-31 14:57:59,044 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-01-31 14:57:59,045 WARN L398 uantifierElimination]: Input elimination task: ∃ [v_ULTIMATE.start_main_~str2~6_7]. (and (= (store v_ULTIMATE.start_main_~str2~6_7 0 (select ULTIMATE.start_main_~str1~6 0)) ULTIMATE.start_main_~str2~6) (< 0 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 1)) [2019-01-31 14:57:59,045 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (and (< 0 ULTIMATE.start_main_~MAX~6) (= (select ULTIMATE.start_main_~str2~6 0) (select ULTIMATE.start_main_~str1~6 0)) (<= ULTIMATE.start_main_~MAX~6 1)) [2019-01-31 14:57:59,353 INFO L273 TraceCheckUtils]: 0: Hoare triple {103#true} havoc main_#res;havoc main_#t~nondet0, main_#t~nondet2, main_#t~post1, main_#t~post4, main_#t~post3, main_#t~post6, main_#t~post5, main_~MAX~6, main_~str1~6, main_~str2~6, main_~cont~6, main_~i~6, main_~j~6;main_~MAX~6 := (if main_#t~nondet0 % 4294967296 % 4294967296 <= 2147483647 then main_#t~nondet0 % 4294967296 % 4294967296 else main_#t~nondet0 % 4294967296 % 4294967296 - 4294967296);havoc main_#t~nondet0;havoc main_~str1~6;havoc main_~str2~6;havoc main_~cont~6;havoc main_~i~6;havoc main_~j~6;main_~cont~6 := 0;main_~i~6 := 0; {112#(= ULTIMATE.start_main_~i~6 0)} is VALID [2019-01-31 14:57:59,364 INFO L273 TraceCheckUtils]: 1: Hoare triple {112#(= ULTIMATE.start_main_~i~6 0)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {116#(and (< 0 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~i~6 1))} is VALID [2019-01-31 14:57:59,378 INFO L273 TraceCheckUtils]: 2: Hoare triple {116#(and (< 0 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~i~6 1))} assume !(main_~i~6 < main_~MAX~6);main_~str1~6 := main_~str1~6[main_~MAX~6 - 1 := 0];main_~j~6 := 0;main_~i~6 := main_~MAX~6 - 1; {120#(and (< 0 ULTIMATE.start_main_~MAX~6) (= ULTIMATE.start_main_~j~6 0) (<= ULTIMATE.start_main_~MAX~6 1))} is VALID [2019-01-31 14:57:59,387 INFO L273 TraceCheckUtils]: 3: Hoare triple {120#(and (< 0 ULTIMATE.start_main_~MAX~6) (= ULTIMATE.start_main_~j~6 0) (<= ULTIMATE.start_main_~MAX~6 1))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {124#(and (< 0 ULTIMATE.start_main_~MAX~6) (= (select ULTIMATE.start_main_~str2~6 0) (select ULTIMATE.start_main_~str1~6 0)) (<= ULTIMATE.start_main_~MAX~6 1))} is VALID [2019-01-31 14:57:59,400 INFO L273 TraceCheckUtils]: 4: Hoare triple {124#(and (< 0 ULTIMATE.start_main_~MAX~6) (= (select ULTIMATE.start_main_~str2~6 0) (select ULTIMATE.start_main_~str1~6 0)) (<= ULTIMATE.start_main_~MAX~6 1))} assume !(main_~i~6 >= 0);main_~j~6 := main_~MAX~6 - 1;main_~i~6 := 0;assume !!(main_~i~6 < main_~MAX~6);__VERIFIER_assert_#in~cond := (if main_~str1~6[main_~i~6] == main_~str2~6[main_~j~6] then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond;assume __VERIFIER_assert_~cond == 0;assume !false; {104#false} is VALID [2019-01-31 14:57:59,401 INFO L273 TraceCheckUtils]: 5: Hoare triple {104#false} assume !false; {104#false} is VALID [2019-01-31 14:57:59,401 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-31 14:57:59,401 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2019-01-31 14:57:59,461 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 5 [2019-01-31 14:57:59,462 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-01-31 14:57:59,465 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-31 14:57:59,466 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:14, output treesize:5 [2019-01-31 14:57:59,470 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-01-31 14:57:59,470 WARN L398 uantifierElimination]: Input elimination task: ∀ [ULTIMATE.start_main_~str2~6, ULTIMATE.start_main_~str1~6]. (let ((.cse0 (select ULTIMATE.start_main_~str1~6 0))) (= .cse0 (select (store ULTIMATE.start_main_~str2~6 ULTIMATE.start_main_~j~6 .cse0) (+ ULTIMATE.start_main_~MAX~6 (- 1))))) [2019-01-31 14:57:59,470 WARN L399 uantifierElimination]: ElimStorePlain result: ∀ []. (= (+ ULTIMATE.start_main_~j~6 1) ULTIMATE.start_main_~MAX~6) [2019-01-31 14:57:59,559 INFO L273 TraceCheckUtils]: 5: Hoare triple {104#false} assume !false; {104#false} is VALID [2019-01-31 14:57:59,560 INFO L273 TraceCheckUtils]: 4: Hoare triple {108#(= (select ULTIMATE.start_main_~str1~6 0) (select ULTIMATE.start_main_~str2~6 (+ ULTIMATE.start_main_~MAX~6 (- 1))))} assume !(main_~i~6 >= 0);main_~j~6 := main_~MAX~6 - 1;main_~i~6 := 0;assume !!(main_~i~6 < main_~MAX~6);__VERIFIER_assert_#in~cond := (if main_~str1~6[main_~i~6] == main_~str2~6[main_~j~6] then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond;assume __VERIFIER_assert_~cond == 0;assume !false; {104#false} is VALID [2019-01-31 14:57:59,561 INFO L273 TraceCheckUtils]: 3: Hoare triple {107#(= (+ ULTIMATE.start_main_~j~6 1) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {108#(= (select ULTIMATE.start_main_~str1~6 0) (select ULTIMATE.start_main_~str2~6 (+ ULTIMATE.start_main_~MAX~6 (- 1))))} is VALID [2019-01-31 14:57:59,561 INFO L273 TraceCheckUtils]: 2: Hoare triple {106#(or (<= (+ ULTIMATE.start_main_~i~6 1) ULTIMATE.start_main_~MAX~6) (= 1 ULTIMATE.start_main_~MAX~6))} assume !(main_~i~6 < main_~MAX~6);main_~str1~6 := main_~str1~6[main_~MAX~6 - 1 := 0];main_~j~6 := 0;main_~i~6 := main_~MAX~6 - 1; {107#(= (+ ULTIMATE.start_main_~j~6 1) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:57:59,562 INFO L273 TraceCheckUtils]: 1: Hoare triple {112#(= ULTIMATE.start_main_~i~6 0)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {106#(or (<= (+ ULTIMATE.start_main_~i~6 1) ULTIMATE.start_main_~MAX~6) (= 1 ULTIMATE.start_main_~MAX~6))} is VALID [2019-01-31 14:57:59,563 INFO L273 TraceCheckUtils]: 0: Hoare triple {103#true} havoc main_#res;havoc main_#t~nondet0, main_#t~nondet2, main_#t~post1, main_#t~post4, main_#t~post3, main_#t~post6, main_#t~post5, main_~MAX~6, main_~str1~6, main_~str2~6, main_~cont~6, main_~i~6, main_~j~6;main_~MAX~6 := (if main_#t~nondet0 % 4294967296 % 4294967296 <= 2147483647 then main_#t~nondet0 % 4294967296 % 4294967296 else main_#t~nondet0 % 4294967296 % 4294967296 - 4294967296);havoc main_#t~nondet0;havoc main_~str1~6;havoc main_~str2~6;havoc main_~cont~6;havoc main_~i~6;havoc main_~j~6;main_~cont~6 := 0;main_~i~6 := 0; {112#(= ULTIMATE.start_main_~i~6 0)} is VALID [2019-01-31 14:57:59,563 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-31 14:57:59,584 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-01-31 14:57:59,585 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 9 [2019-01-31 14:57:59,585 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-01-31 14:57:59,585 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 6 [2019-01-31 14:57:59,586 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-01-31 14:57:59,586 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 10 states. [2019-01-31 14:57:59,598 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 11 edges. 11 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-01-31 14:57:59,598 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-01-31 14:57:59,599 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-01-31 14:57:59,599 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2019-01-31 14:57:59,600 INFO L87 Difference]: Start difference. First operand 7 states and 8 transitions. Second operand 10 states. [2019-01-31 14:58:00,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 14:58:00,021 INFO L93 Difference]: Finished difference Result 12 states and 14 transitions. [2019-01-31 14:58:00,021 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-01-31 14:58:00,022 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 6 [2019-01-31 14:58:00,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-31 14:58:00,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2019-01-31 14:58:00,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 14 transitions. [2019-01-31 14:58:00,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2019-01-31 14:58:00,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 14 transitions. [2019-01-31 14:58:00,025 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 9 states and 14 transitions. [2019-01-31 14:58:00,044 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 14 edges. 14 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-01-31 14:58:00,045 INFO L225 Difference]: With dead ends: 12 [2019-01-31 14:58:00,045 INFO L226 Difference]: Without dead ends: 8 [2019-01-31 14:58:00,046 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 5 SyntacticMatches, 2 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=57, Invalid=125, Unknown=0, NotChecked=0, Total=182 [2019-01-31 14:58:00,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2019-01-31 14:58:00,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2019-01-31 14:58:00,061 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-01-31 14:58:00,061 INFO L82 GeneralOperation]: Start isEquivalent. First operand 8 states. Second operand 8 states. [2019-01-31 14:58:00,061 INFO L74 IsIncluded]: Start isIncluded. First operand 8 states. Second operand 8 states. [2019-01-31 14:58:00,062 INFO L87 Difference]: Start difference. First operand 8 states. Second operand 8 states. [2019-01-31 14:58:00,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 14:58:00,063 INFO L93 Difference]: Finished difference Result 8 states and 9 transitions. [2019-01-31 14:58:00,063 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 9 transitions. [2019-01-31 14:58:00,063 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-31 14:58:00,063 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-01-31 14:58:00,063 INFO L74 IsIncluded]: Start isIncluded. First operand 8 states. Second operand 8 states. [2019-01-31 14:58:00,063 INFO L87 Difference]: Start difference. First operand 8 states. Second operand 8 states. [2019-01-31 14:58:00,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 14:58:00,064 INFO L93 Difference]: Finished difference Result 8 states and 9 transitions. [2019-01-31 14:58:00,065 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 9 transitions. [2019-01-31 14:58:00,065 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-31 14:58:00,065 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-01-31 14:58:00,065 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-01-31 14:58:00,065 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-01-31 14:58:00,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2019-01-31 14:58:00,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 9 transitions. [2019-01-31 14:58:00,067 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 9 transitions. Word has length 6 [2019-01-31 14:58:00,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-31 14:58:00,067 INFO L480 AbstractCegarLoop]: Abstraction has 8 states and 9 transitions. [2019-01-31 14:58:00,067 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-01-31 14:58:00,067 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 9 transitions. [2019-01-31 14:58:00,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-01-31 14:58:00,068 INFO L394 BasicCegarLoop]: Found error trace [2019-01-31 14:58:00,068 INFO L402 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1] [2019-01-31 14:58:00,068 INFO L423 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2019-01-31 14:58:00,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-31 14:58:00,069 INFO L82 PathProgramCache]: Analyzing trace with hash 1949841836, now seen corresponding path program 2 times [2019-01-31 14:58:00,069 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-01-31 14:58:00,070 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-31 14:58:00,070 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-31 14:58:00,070 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-31 14:58:00,070 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-01-31 14:58:00,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-31 14:58:00,151 INFO L273 TraceCheckUtils]: 0: Hoare triple {204#true} havoc main_#res;havoc main_#t~nondet0, main_#t~nondet2, main_#t~post1, main_#t~post4, main_#t~post3, main_#t~post6, main_#t~post5, main_~MAX~6, main_~str1~6, main_~str2~6, main_~cont~6, main_~i~6, main_~j~6;main_~MAX~6 := (if main_#t~nondet0 % 4294967296 % 4294967296 <= 2147483647 then main_#t~nondet0 % 4294967296 % 4294967296 else main_#t~nondet0 % 4294967296 % 4294967296 - 4294967296);havoc main_#t~nondet0;havoc main_~str1~6;havoc main_~str2~6;havoc main_~cont~6;havoc main_~i~6;havoc main_~j~6;main_~cont~6 := 0;main_~i~6 := 0; {206#(<= 0 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:00,152 INFO L273 TraceCheckUtils]: 1: Hoare triple {206#(<= 0 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {207#(<= 1 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:00,154 INFO L273 TraceCheckUtils]: 2: Hoare triple {207#(<= 1 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {208#(<= 2 ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:58:00,155 INFO L273 TraceCheckUtils]: 3: Hoare triple {208#(<= 2 ULTIMATE.start_main_~MAX~6)} assume !(main_~i~6 < main_~MAX~6);main_~str1~6 := main_~str1~6[main_~MAX~6 - 1 := 0];main_~j~6 := 0;main_~i~6 := main_~MAX~6 - 1; {207#(<= 1 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:00,156 INFO L273 TraceCheckUtils]: 4: Hoare triple {207#(<= 1 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {206#(<= 0 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:00,156 INFO L273 TraceCheckUtils]: 5: Hoare triple {206#(<= 0 ULTIMATE.start_main_~i~6)} assume !(main_~i~6 >= 0);main_~j~6 := main_~MAX~6 - 1;main_~i~6 := 0;assume !!(main_~i~6 < main_~MAX~6);__VERIFIER_assert_#in~cond := (if main_~str1~6[main_~i~6] == main_~str2~6[main_~j~6] then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond;assume __VERIFIER_assert_~cond == 0;assume !false; {205#false} is VALID [2019-01-31 14:58:00,157 INFO L273 TraceCheckUtils]: 6: Hoare triple {205#false} assume !false; {205#false} is VALID [2019-01-31 14:58:00,158 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-31 14:58:00,158 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-31 14:58:00,158 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-01-31 14:58:00,158 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-01-31 14:58:00,159 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-01-31 14:58:00,159 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-31 14:58:00,159 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-01-31 14:58:00,168 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2019-01-31 14:58:00,169 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST2 (IT: FPandBP) [2019-01-31 14:58:00,178 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2019-01-31 14:58:00,178 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-01-31 14:58:00,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-31 14:58:00,198 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-31 14:58:00,249 INFO L273 TraceCheckUtils]: 0: Hoare triple {204#true} havoc main_#res;havoc main_#t~nondet0, main_#t~nondet2, main_#t~post1, main_#t~post4, main_#t~post3, main_#t~post6, main_#t~post5, main_~MAX~6, main_~str1~6, main_~str2~6, main_~cont~6, main_~i~6, main_~j~6;main_~MAX~6 := (if main_#t~nondet0 % 4294967296 % 4294967296 <= 2147483647 then main_#t~nondet0 % 4294967296 % 4294967296 else main_#t~nondet0 % 4294967296 % 4294967296 - 4294967296);havoc main_#t~nondet0;havoc main_~str1~6;havoc main_~str2~6;havoc main_~cont~6;havoc main_~i~6;havoc main_~j~6;main_~cont~6 := 0;main_~i~6 := 0; {206#(<= 0 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:00,250 INFO L273 TraceCheckUtils]: 1: Hoare triple {206#(<= 0 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {207#(<= 1 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:00,251 INFO L273 TraceCheckUtils]: 2: Hoare triple {207#(<= 1 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {208#(<= 2 ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:58:00,252 INFO L273 TraceCheckUtils]: 3: Hoare triple {208#(<= 2 ULTIMATE.start_main_~MAX~6)} assume !(main_~i~6 < main_~MAX~6);main_~str1~6 := main_~str1~6[main_~MAX~6 - 1 := 0];main_~j~6 := 0;main_~i~6 := main_~MAX~6 - 1; {207#(<= 1 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:00,254 INFO L273 TraceCheckUtils]: 4: Hoare triple {207#(<= 1 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {206#(<= 0 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:00,254 INFO L273 TraceCheckUtils]: 5: Hoare triple {206#(<= 0 ULTIMATE.start_main_~i~6)} assume !(main_~i~6 >= 0);main_~j~6 := main_~MAX~6 - 1;main_~i~6 := 0;assume !!(main_~i~6 < main_~MAX~6);__VERIFIER_assert_#in~cond := (if main_~str1~6[main_~i~6] == main_~str2~6[main_~j~6] then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond;assume __VERIFIER_assert_~cond == 0;assume !false; {205#false} is VALID [2019-01-31 14:58:00,255 INFO L273 TraceCheckUtils]: 6: Hoare triple {205#false} assume !false; {205#false} is VALID [2019-01-31 14:58:00,255 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-31 14:58:00,255 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2019-01-31 14:58:00,303 INFO L273 TraceCheckUtils]: 6: Hoare triple {205#false} assume !false; {205#false} is VALID [2019-01-31 14:58:00,304 INFO L273 TraceCheckUtils]: 5: Hoare triple {206#(<= 0 ULTIMATE.start_main_~i~6)} assume !(main_~i~6 >= 0);main_~j~6 := main_~MAX~6 - 1;main_~i~6 := 0;assume !!(main_~i~6 < main_~MAX~6);__VERIFIER_assert_#in~cond := (if main_~str1~6[main_~i~6] == main_~str2~6[main_~j~6] then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond;assume __VERIFIER_assert_~cond == 0;assume !false; {205#false} is VALID [2019-01-31 14:58:00,305 INFO L273 TraceCheckUtils]: 4: Hoare triple {207#(<= 1 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {206#(<= 0 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:00,306 INFO L273 TraceCheckUtils]: 3: Hoare triple {208#(<= 2 ULTIMATE.start_main_~MAX~6)} assume !(main_~i~6 < main_~MAX~6);main_~str1~6 := main_~str1~6[main_~MAX~6 - 1 := 0];main_~j~6 := 0;main_~i~6 := main_~MAX~6 - 1; {207#(<= 1 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:00,307 INFO L273 TraceCheckUtils]: 2: Hoare triple {207#(<= 1 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {208#(<= 2 ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:58:00,307 INFO L273 TraceCheckUtils]: 1: Hoare triple {206#(<= 0 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {207#(<= 1 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:00,317 INFO L273 TraceCheckUtils]: 0: Hoare triple {204#true} havoc main_#res;havoc main_#t~nondet0, main_#t~nondet2, main_#t~post1, main_#t~post4, main_#t~post3, main_#t~post6, main_#t~post5, main_~MAX~6, main_~str1~6, main_~str2~6, main_~cont~6, main_~i~6, main_~j~6;main_~MAX~6 := (if main_#t~nondet0 % 4294967296 % 4294967296 <= 2147483647 then main_#t~nondet0 % 4294967296 % 4294967296 else main_#t~nondet0 % 4294967296 % 4294967296 - 4294967296);havoc main_#t~nondet0;havoc main_~str1~6;havoc main_~str2~6;havoc main_~cont~6;havoc main_~i~6;havoc main_~j~6;main_~cont~6 := 0;main_~i~6 := 0; {206#(<= 0 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:00,318 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-31 14:58:00,336 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-01-31 14:58:00,336 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 4 [2019-01-31 14:58:00,336 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-01-31 14:58:00,337 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 7 [2019-01-31 14:58:00,337 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-01-31 14:58:00,337 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states. [2019-01-31 14:58:00,344 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 7 edges. 7 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-01-31 14:58:00,344 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-01-31 14:58:00,344 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-01-31 14:58:00,344 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-01-31 14:58:00,345 INFO L87 Difference]: Start difference. First operand 8 states and 9 transitions. Second operand 5 states. [2019-01-31 14:58:00,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 14:58:00,463 INFO L93 Difference]: Finished difference Result 11 states and 12 transitions. [2019-01-31 14:58:00,463 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-01-31 14:58:00,463 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 7 [2019-01-31 14:58:00,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-31 14:58:00,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2019-01-31 14:58:00,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 12 transitions. [2019-01-31 14:58:00,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2019-01-31 14:58:00,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 12 transitions. [2019-01-31 14:58:00,466 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 7 states and 12 transitions. [2019-01-31 14:58:00,489 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 12 edges. 12 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-01-31 14:58:00,490 INFO L225 Difference]: With dead ends: 11 [2019-01-31 14:58:00,490 INFO L226 Difference]: Without dead ends: 9 [2019-01-31 14:58:00,491 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 11 SyntacticMatches, 4 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-01-31 14:58:00,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2019-01-31 14:58:00,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2019-01-31 14:58:00,511 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-01-31 14:58:00,511 INFO L82 GeneralOperation]: Start isEquivalent. First operand 9 states. Second operand 9 states. [2019-01-31 14:58:00,511 INFO L74 IsIncluded]: Start isIncluded. First operand 9 states. Second operand 9 states. [2019-01-31 14:58:00,511 INFO L87 Difference]: Start difference. First operand 9 states. Second operand 9 states. [2019-01-31 14:58:00,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 14:58:00,513 INFO L93 Difference]: Finished difference Result 9 states and 10 transitions. [2019-01-31 14:58:00,513 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 10 transitions. [2019-01-31 14:58:00,513 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-31 14:58:00,514 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-01-31 14:58:00,514 INFO L74 IsIncluded]: Start isIncluded. First operand 9 states. Second operand 9 states. [2019-01-31 14:58:00,514 INFO L87 Difference]: Start difference. First operand 9 states. Second operand 9 states. [2019-01-31 14:58:00,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 14:58:00,515 INFO L93 Difference]: Finished difference Result 9 states and 10 transitions. [2019-01-31 14:58:00,516 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 10 transitions. [2019-01-31 14:58:00,516 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-31 14:58:00,516 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-01-31 14:58:00,516 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-01-31 14:58:00,516 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-01-31 14:58:00,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2019-01-31 14:58:00,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 10 transitions. [2019-01-31 14:58:00,517 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 10 transitions. Word has length 7 [2019-01-31 14:58:00,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-31 14:58:00,518 INFO L480 AbstractCegarLoop]: Abstraction has 9 states and 10 transitions. [2019-01-31 14:58:00,518 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-01-31 14:58:00,518 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 10 transitions. [2019-01-31 14:58:00,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-01-31 14:58:00,518 INFO L394 BasicCegarLoop]: Found error trace [2019-01-31 14:58:00,518 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1] [2019-01-31 14:58:00,519 INFO L423 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2019-01-31 14:58:00,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-31 14:58:00,519 INFO L82 PathProgramCache]: Analyzing trace with hash 315556586, now seen corresponding path program 3 times [2019-01-31 14:58:00,519 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-01-31 14:58:00,520 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-31 14:58:00,520 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-01-31 14:58:00,520 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-31 14:58:00,520 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-01-31 14:58:00,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-31 14:58:00,782 INFO L273 TraceCheckUtils]: 0: Hoare triple {304#true} havoc main_#res;havoc main_#t~nondet0, main_#t~nondet2, main_#t~post1, main_#t~post4, main_#t~post3, main_#t~post6, main_#t~post5, main_~MAX~6, main_~str1~6, main_~str2~6, main_~cont~6, main_~i~6, main_~j~6;main_~MAX~6 := (if main_#t~nondet0 % 4294967296 % 4294967296 <= 2147483647 then main_#t~nondet0 % 4294967296 % 4294967296 else main_#t~nondet0 % 4294967296 % 4294967296 - 4294967296);havoc main_#t~nondet0;havoc main_~str1~6;havoc main_~str2~6;havoc main_~cont~6;havoc main_~i~6;havoc main_~j~6;main_~cont~6 := 0;main_~i~6 := 0; {306#(and (<= ULTIMATE.start_main_~i~6 0) (<= 0 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:58:00,783 INFO L273 TraceCheckUtils]: 1: Hoare triple {306#(and (<= ULTIMATE.start_main_~i~6 0) (<= 0 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {307#(or (not (= (+ ULTIMATE.start_main_~i~6 1) ULTIMATE.start_main_~MAX~6)) (and (<= ULTIMATE.start_main_~i~6 1) (<= 1 ULTIMATE.start_main_~i~6)))} is VALID [2019-01-31 14:58:00,784 INFO L273 TraceCheckUtils]: 2: Hoare triple {307#(or (not (= (+ ULTIMATE.start_main_~i~6 1) ULTIMATE.start_main_~MAX~6)) (and (<= ULTIMATE.start_main_~i~6 1) (<= 1 ULTIMATE.start_main_~i~6)))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {308#(or (<= (+ ULTIMATE.start_main_~i~6 1) ULTIMATE.start_main_~MAX~6) (= 2 ULTIMATE.start_main_~MAX~6))} is VALID [2019-01-31 14:58:00,786 INFO L273 TraceCheckUtils]: 3: Hoare triple {308#(or (<= (+ ULTIMATE.start_main_~i~6 1) ULTIMATE.start_main_~MAX~6) (= 2 ULTIMATE.start_main_~MAX~6))} assume !(main_~i~6 < main_~MAX~6);main_~str1~6 := main_~str1~6[main_~MAX~6 - 1 := 0];main_~j~6 := 0;main_~i~6 := main_~MAX~6 - 1; {309#(= (+ ULTIMATE.start_main_~j~6 2) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:58:00,790 INFO L273 TraceCheckUtils]: 4: Hoare triple {309#(= (+ ULTIMATE.start_main_~j~6 2) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {310#(= (+ ULTIMATE.start_main_~j~6 1) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:58:00,791 INFO L273 TraceCheckUtils]: 5: Hoare triple {310#(= (+ ULTIMATE.start_main_~j~6 1) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {311#(= (select ULTIMATE.start_main_~str1~6 0) (select ULTIMATE.start_main_~str2~6 (+ ULTIMATE.start_main_~MAX~6 (- 1))))} is VALID [2019-01-31 14:58:00,792 INFO L273 TraceCheckUtils]: 6: Hoare triple {311#(= (select ULTIMATE.start_main_~str1~6 0) (select ULTIMATE.start_main_~str2~6 (+ ULTIMATE.start_main_~MAX~6 (- 1))))} assume !(main_~i~6 >= 0);main_~j~6 := main_~MAX~6 - 1;main_~i~6 := 0;assume !!(main_~i~6 < main_~MAX~6);__VERIFIER_assert_#in~cond := (if main_~str1~6[main_~i~6] == main_~str2~6[main_~j~6] then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond;assume __VERIFIER_assert_~cond == 0;assume !false; {305#false} is VALID [2019-01-31 14:58:00,792 INFO L273 TraceCheckUtils]: 7: Hoare triple {305#false} assume !false; {305#false} is VALID [2019-01-31 14:58:00,793 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-31 14:58:00,793 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-31 14:58:00,793 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-01-31 14:58:00,794 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-01-31 14:58:00,794 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-01-31 14:58:00,794 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-31 14:58:00,794 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-01-31 14:58:00,809 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2019-01-31 14:58:00,809 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder TERMS_WITH_SMALL_CONSTANTS_FIRST (IT: FPandBP) [2019-01-31 14:58:00,816 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-01-31 14:58:00,816 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-01-31 14:58:00,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-31 14:58:00,824 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-31 14:58:00,885 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2019-01-31 14:58:00,887 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-01-31 14:58:00,894 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-31 14:58:00,894 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:17, output treesize:16 [2019-01-31 14:58:00,897 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-01-31 14:58:00,898 WARN L398 uantifierElimination]: Input elimination task: ∃ [v_ULTIMATE.start_main_~str2~6_10]. (and (<= 2 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 3)) (= (store v_ULTIMATE.start_main_~str2~6_10 1 (select ULTIMATE.start_main_~str1~6 0)) ULTIMATE.start_main_~str2~6)) [2019-01-31 14:58:00,898 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= (select ULTIMATE.start_main_~str1~6 0) (select ULTIMATE.start_main_~str2~6 1)) (<= 2 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 3))) [2019-01-31 14:58:00,967 INFO L273 TraceCheckUtils]: 0: Hoare triple {304#true} havoc main_#res;havoc main_#t~nondet0, main_#t~nondet2, main_#t~post1, main_#t~post4, main_#t~post3, main_#t~post6, main_#t~post5, main_~MAX~6, main_~str1~6, main_~str2~6, main_~cont~6, main_~i~6, main_~j~6;main_~MAX~6 := (if main_#t~nondet0 % 4294967296 % 4294967296 <= 2147483647 then main_#t~nondet0 % 4294967296 % 4294967296 else main_#t~nondet0 % 4294967296 % 4294967296 - 4294967296);havoc main_#t~nondet0;havoc main_~str1~6;havoc main_~str2~6;havoc main_~cont~6;havoc main_~i~6;havoc main_~j~6;main_~cont~6 := 0;main_~i~6 := 0; {304#true} is VALID [2019-01-31 14:58:00,968 INFO L273 TraceCheckUtils]: 1: Hoare triple {304#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {304#true} is VALID [2019-01-31 14:58:00,968 INFO L273 TraceCheckUtils]: 2: Hoare triple {304#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {304#true} is VALID [2019-01-31 14:58:00,969 INFO L273 TraceCheckUtils]: 3: Hoare triple {304#true} assume !(main_~i~6 < main_~MAX~6);main_~str1~6 := main_~str1~6[main_~MAX~6 - 1 := 0];main_~j~6 := 0;main_~i~6 := main_~MAX~6 - 1; {324#(and (= ULTIMATE.start_main_~j~6 0) (= (+ ULTIMATE.start_main_~i~6 1) ULTIMATE.start_main_~MAX~6))} is VALID [2019-01-31 14:58:00,970 INFO L273 TraceCheckUtils]: 4: Hoare triple {324#(and (= ULTIMATE.start_main_~j~6 0) (= (+ ULTIMATE.start_main_~i~6 1) ULTIMATE.start_main_~MAX~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {328#(and (= ULTIMATE.start_main_~j~6 1) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 2)))} is VALID [2019-01-31 14:58:00,971 INFO L273 TraceCheckUtils]: 5: Hoare triple {328#(and (= ULTIMATE.start_main_~j~6 1) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 2)))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {332#(and (= (select ULTIMATE.start_main_~str1~6 0) (select ULTIMATE.start_main_~str2~6 1)) (<= 2 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 3)))} is VALID [2019-01-31 14:58:00,972 INFO L273 TraceCheckUtils]: 6: Hoare triple {332#(and (= (select ULTIMATE.start_main_~str1~6 0) (select ULTIMATE.start_main_~str2~6 1)) (<= 2 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 3)))} assume !(main_~i~6 >= 0);main_~j~6 := main_~MAX~6 - 1;main_~i~6 := 0;assume !!(main_~i~6 < main_~MAX~6);__VERIFIER_assert_#in~cond := (if main_~str1~6[main_~i~6] == main_~str2~6[main_~j~6] then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond;assume __VERIFIER_assert_~cond == 0;assume !false; {305#false} is VALID [2019-01-31 14:58:00,972 INFO L273 TraceCheckUtils]: 7: Hoare triple {305#false} assume !false; {305#false} is VALID [2019-01-31 14:58:00,973 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-01-31 14:58:00,973 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2019-01-31 14:58:01,518 WARN L181 SmtUtils]: Spent 322.00 ms on a formula simplification. DAG size of input: 19 DAG size of output: 17 [2019-01-31 14:58:01,527 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 5 [2019-01-31 14:58:01,529 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-01-31 14:58:01,541 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-31 14:58:01,541 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:22, output treesize:12 [2019-01-31 14:58:01,544 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-01-31 14:58:01,544 WARN L398 uantifierElimination]: Input elimination task: ∀ [ULTIMATE.start_main_~str2~6, ULTIMATE.start_main_~str1~6]. (or (not (<= 0 ULTIMATE.start_main_~i~6)) (let ((.cse0 (select ULTIMATE.start_main_~str1~6 0))) (= .cse0 (select (store ULTIMATE.start_main_~str2~6 ULTIMATE.start_main_~j~6 .cse0) (+ ULTIMATE.start_main_~MAX~6 (- 1))))) (< 0 ULTIMATE.start_main_~i~6)) [2019-01-31 14:58:01,544 WARN L399 uantifierElimination]: ElimStorePlain result: ∀ []. (or (< ULTIMATE.start_main_~i~6 0) (< 0 ULTIMATE.start_main_~i~6) (= (+ ULTIMATE.start_main_~j~6 1) ULTIMATE.start_main_~MAX~6)) [2019-01-31 14:58:01,605 INFO L273 TraceCheckUtils]: 7: Hoare triple {305#false} assume !false; {305#false} is VALID [2019-01-31 14:58:01,606 INFO L273 TraceCheckUtils]: 6: Hoare triple {342#(or (= (select ULTIMATE.start_main_~str1~6 0) (select ULTIMATE.start_main_~str2~6 (+ ULTIMATE.start_main_~MAX~6 (- 1)))) (<= 0 ULTIMATE.start_main_~i~6))} assume !(main_~i~6 >= 0);main_~j~6 := main_~MAX~6 - 1;main_~i~6 := 0;assume !!(main_~i~6 < main_~MAX~6);__VERIFIER_assert_#in~cond := (if main_~str1~6[main_~i~6] == main_~str2~6[main_~j~6] then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond;assume __VERIFIER_assert_~cond == 0;assume !false; {305#false} is VALID [2019-01-31 14:58:01,608 INFO L273 TraceCheckUtils]: 5: Hoare triple {346#(or (< ULTIMATE.start_main_~i~6 0) (< 0 ULTIMATE.start_main_~i~6) (= (+ ULTIMATE.start_main_~j~6 1) ULTIMATE.start_main_~MAX~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {342#(or (= (select ULTIMATE.start_main_~str1~6 0) (select ULTIMATE.start_main_~str2~6 (+ ULTIMATE.start_main_~MAX~6 (- 1)))) (<= 0 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:58:01,609 INFO L273 TraceCheckUtils]: 4: Hoare triple {350#(or (= (+ ULTIMATE.start_main_~j~6 2) ULTIMATE.start_main_~MAX~6) (< 1 ULTIMATE.start_main_~i~6) (< ULTIMATE.start_main_~i~6 1))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {346#(or (< ULTIMATE.start_main_~i~6 0) (< 0 ULTIMATE.start_main_~i~6) (= (+ ULTIMATE.start_main_~j~6 1) ULTIMATE.start_main_~MAX~6))} is VALID [2019-01-31 14:58:01,610 INFO L273 TraceCheckUtils]: 3: Hoare triple {304#true} assume !(main_~i~6 < main_~MAX~6);main_~str1~6 := main_~str1~6[main_~MAX~6 - 1 := 0];main_~j~6 := 0;main_~i~6 := main_~MAX~6 - 1; {350#(or (= (+ ULTIMATE.start_main_~j~6 2) ULTIMATE.start_main_~MAX~6) (< 1 ULTIMATE.start_main_~i~6) (< ULTIMATE.start_main_~i~6 1))} is VALID [2019-01-31 14:58:01,610 INFO L273 TraceCheckUtils]: 2: Hoare triple {304#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {304#true} is VALID [2019-01-31 14:58:01,611 INFO L273 TraceCheckUtils]: 1: Hoare triple {304#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {304#true} is VALID [2019-01-31 14:58:01,611 INFO L273 TraceCheckUtils]: 0: Hoare triple {304#true} havoc main_#res;havoc main_#t~nondet0, main_#t~nondet2, main_#t~post1, main_#t~post4, main_#t~post3, main_#t~post6, main_#t~post5, main_~MAX~6, main_~str1~6, main_~str2~6, main_~cont~6, main_~i~6, main_~j~6;main_~MAX~6 := (if main_#t~nondet0 % 4294967296 % 4294967296 <= 2147483647 then main_#t~nondet0 % 4294967296 % 4294967296 else main_#t~nondet0 % 4294967296 % 4294967296 - 4294967296);havoc main_#t~nondet0;havoc main_~str1~6;havoc main_~str2~6;havoc main_~cont~6;havoc main_~i~6;havoc main_~j~6;main_~cont~6 := 0;main_~i~6 := 0; {304#true} is VALID [2019-01-31 14:58:01,612 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-01-31 14:58:01,630 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-01-31 14:58:01,630 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5, 5] total 14 [2019-01-31 14:58:01,630 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-01-31 14:58:01,631 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 8 [2019-01-31 14:58:01,631 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-01-31 14:58:01,631 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 11 states. [2019-01-31 14:58:01,646 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 14 edges. 14 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-01-31 14:58:01,647 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-01-31 14:58:01,647 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-01-31 14:58:01,647 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2019-01-31 14:58:01,648 INFO L87 Difference]: Start difference. First operand 9 states and 10 transitions. Second operand 11 states. [2019-01-31 14:58:02,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 14:58:02,323 INFO L93 Difference]: Finished difference Result 17 states and 21 transitions. [2019-01-31 14:58:02,323 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2019-01-31 14:58:02,323 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 8 [2019-01-31 14:58:02,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-31 14:58:02,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2019-01-31 14:58:02,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 21 transitions. [2019-01-31 14:58:02,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2019-01-31 14:58:02,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 21 transitions. [2019-01-31 14:58:02,326 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 14 states and 21 transitions. [2019-01-31 14:58:02,354 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 21 edges. 21 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-01-31 14:58:02,355 INFO L225 Difference]: With dead ends: 17 [2019-01-31 14:58:02,355 INFO L226 Difference]: Without dead ends: 11 [2019-01-31 14:58:02,356 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=97, Invalid=323, Unknown=0, NotChecked=0, Total=420 [2019-01-31 14:58:02,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2019-01-31 14:58:02,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2019-01-31 14:58:02,395 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-01-31 14:58:02,395 INFO L82 GeneralOperation]: Start isEquivalent. First operand 11 states. Second operand 11 states. [2019-01-31 14:58:02,395 INFO L74 IsIncluded]: Start isIncluded. First operand 11 states. Second operand 11 states. [2019-01-31 14:58:02,395 INFO L87 Difference]: Start difference. First operand 11 states. Second operand 11 states. [2019-01-31 14:58:02,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 14:58:02,396 INFO L93 Difference]: Finished difference Result 11 states and 12 transitions. [2019-01-31 14:58:02,396 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 12 transitions. [2019-01-31 14:58:02,397 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-31 14:58:02,397 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-01-31 14:58:02,397 INFO L74 IsIncluded]: Start isIncluded. First operand 11 states. Second operand 11 states. [2019-01-31 14:58:02,397 INFO L87 Difference]: Start difference. First operand 11 states. Second operand 11 states. [2019-01-31 14:58:02,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 14:58:02,398 INFO L93 Difference]: Finished difference Result 11 states and 12 transitions. [2019-01-31 14:58:02,398 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 12 transitions. [2019-01-31 14:58:02,398 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-31 14:58:02,398 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-01-31 14:58:02,399 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-01-31 14:58:02,399 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-01-31 14:58:02,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2019-01-31 14:58:02,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 12 transitions. [2019-01-31 14:58:02,400 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 12 transitions. Word has length 8 [2019-01-31 14:58:02,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-31 14:58:02,400 INFO L480 AbstractCegarLoop]: Abstraction has 11 states and 12 transitions. [2019-01-31 14:58:02,400 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-01-31 14:58:02,400 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 12 transitions. [2019-01-31 14:58:02,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-01-31 14:58:02,401 INFO L394 BasicCegarLoop]: Found error trace [2019-01-31 14:58:02,401 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1] [2019-01-31 14:58:02,401 INFO L423 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2019-01-31 14:58:02,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-31 14:58:02,401 INFO L82 PathProgramCache]: Analyzing trace with hash -175395819, now seen corresponding path program 4 times [2019-01-31 14:58:02,401 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-01-31 14:58:02,402 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-31 14:58:02,402 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-01-31 14:58:02,402 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-31 14:58:02,402 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-01-31 14:58:02,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-31 14:58:03,106 INFO L273 TraceCheckUtils]: 0: Hoare triple {449#true} havoc main_#res;havoc main_#t~nondet0, main_#t~nondet2, main_#t~post1, main_#t~post4, main_#t~post3, main_#t~post6, main_#t~post5, main_~MAX~6, main_~str1~6, main_~str2~6, main_~cont~6, main_~i~6, main_~j~6;main_~MAX~6 := (if main_#t~nondet0 % 4294967296 % 4294967296 <= 2147483647 then main_#t~nondet0 % 4294967296 % 4294967296 else main_#t~nondet0 % 4294967296 % 4294967296 - 4294967296);havoc main_#t~nondet0;havoc main_~str1~6;havoc main_~str2~6;havoc main_~cont~6;havoc main_~i~6;havoc main_~j~6;main_~cont~6 := 0;main_~i~6 := 0; {451#(and (<= ULTIMATE.start_main_~i~6 0) (<= 0 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:58:03,107 INFO L273 TraceCheckUtils]: 1: Hoare triple {451#(and (<= ULTIMATE.start_main_~i~6 0) (<= 0 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {452#(and (<= ULTIMATE.start_main_~i~6 1) (<= 1 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:58:03,108 INFO L273 TraceCheckUtils]: 2: Hoare triple {452#(and (<= ULTIMATE.start_main_~i~6 1) (<= 1 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {453#(or (not (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 1))) (and (<= ULTIMATE.start_main_~i~6 2) (<= 2 ULTIMATE.start_main_~i~6)))} is VALID [2019-01-31 14:58:03,109 INFO L273 TraceCheckUtils]: 3: Hoare triple {453#(or (not (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 1))) (and (<= ULTIMATE.start_main_~i~6 2) (<= 2 ULTIMATE.start_main_~i~6)))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {454#(or (<= (+ ULTIMATE.start_main_~i~6 1) ULTIMATE.start_main_~MAX~6) (= 3 ULTIMATE.start_main_~MAX~6))} is VALID [2019-01-31 14:58:03,110 INFO L273 TraceCheckUtils]: 4: Hoare triple {454#(or (<= (+ ULTIMATE.start_main_~i~6 1) ULTIMATE.start_main_~MAX~6) (= 3 ULTIMATE.start_main_~MAX~6))} assume !(main_~i~6 < main_~MAX~6);main_~str1~6 := main_~str1~6[main_~MAX~6 - 1 := 0];main_~j~6 := 0;main_~i~6 := main_~MAX~6 - 1; {455#(= (+ ULTIMATE.start_main_~j~6 3) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:58:03,110 INFO L273 TraceCheckUtils]: 5: Hoare triple {455#(= (+ ULTIMATE.start_main_~j~6 3) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {456#(= (+ ULTIMATE.start_main_~j~6 2) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:58:03,111 INFO L273 TraceCheckUtils]: 6: Hoare triple {456#(= (+ ULTIMATE.start_main_~j~6 2) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {457#(= (+ ULTIMATE.start_main_~j~6 1) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:58:03,112 INFO L273 TraceCheckUtils]: 7: Hoare triple {457#(= (+ ULTIMATE.start_main_~j~6 1) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {458#(= (select ULTIMATE.start_main_~str1~6 0) (select ULTIMATE.start_main_~str2~6 (+ ULTIMATE.start_main_~MAX~6 (- 1))))} is VALID [2019-01-31 14:58:03,114 INFO L273 TraceCheckUtils]: 8: Hoare triple {458#(= (select ULTIMATE.start_main_~str1~6 0) (select ULTIMATE.start_main_~str2~6 (+ ULTIMATE.start_main_~MAX~6 (- 1))))} assume !(main_~i~6 >= 0);main_~j~6 := main_~MAX~6 - 1;main_~i~6 := 0;assume !!(main_~i~6 < main_~MAX~6);__VERIFIER_assert_#in~cond := (if main_~str1~6[main_~i~6] == main_~str2~6[main_~j~6] then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond;assume __VERIFIER_assert_~cond == 0;assume !false; {450#false} is VALID [2019-01-31 14:58:03,114 INFO L273 TraceCheckUtils]: 9: Hoare triple {450#false} assume !false; {450#false} is VALID [2019-01-31 14:58:03,115 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-31 14:58:03,115 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-31 14:58:03,115 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-01-31 14:58:03,116 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-01-31 14:58:03,116 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-01-31 14:58:03,116 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-31 14:58:03,116 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-01-31 14:58:03,127 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-31 14:58:03,127 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2019-01-31 14:58:03,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-31 14:58:03,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-31 14:58:03,172 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-31 14:58:03,453 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2019-01-31 14:58:03,455 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-01-31 14:58:03,460 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-31 14:58:03,461 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:15, output treesize:14 [2019-01-31 14:58:03,463 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-01-31 14:58:03,463 WARN L398 uantifierElimination]: Input elimination task: ∃ [v_ULTIMATE.start_main_~str2~6_13]. (and (= ULTIMATE.start_main_~str2~6 (store v_ULTIMATE.start_main_~str2~6_13 2 (select ULTIMATE.start_main_~str1~6 0))) (<= ULTIMATE.start_main_~MAX~6 3) (<= 3 ULTIMATE.start_main_~MAX~6)) [2019-01-31 14:58:03,464 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= (select ULTIMATE.start_main_~str1~6 0) (select ULTIMATE.start_main_~str2~6 2)) (<= ULTIMATE.start_main_~MAX~6 3) (<= 3 ULTIMATE.start_main_~MAX~6)) [2019-01-31 14:58:03,491 INFO L273 TraceCheckUtils]: 0: Hoare triple {449#true} havoc main_#res;havoc main_#t~nondet0, main_#t~nondet2, main_#t~post1, main_#t~post4, main_#t~post3, main_#t~post6, main_#t~post5, main_~MAX~6, main_~str1~6, main_~str2~6, main_~cont~6, main_~i~6, main_~j~6;main_~MAX~6 := (if main_#t~nondet0 % 4294967296 % 4294967296 <= 2147483647 then main_#t~nondet0 % 4294967296 % 4294967296 else main_#t~nondet0 % 4294967296 % 4294967296 - 4294967296);havoc main_#t~nondet0;havoc main_~str1~6;havoc main_~str2~6;havoc main_~cont~6;havoc main_~i~6;havoc main_~j~6;main_~cont~6 := 0;main_~i~6 := 0; {451#(and (<= ULTIMATE.start_main_~i~6 0) (<= 0 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:58:03,492 INFO L273 TraceCheckUtils]: 1: Hoare triple {451#(and (<= ULTIMATE.start_main_~i~6 0) (<= 0 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {452#(and (<= ULTIMATE.start_main_~i~6 1) (<= 1 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:58:03,493 INFO L273 TraceCheckUtils]: 2: Hoare triple {452#(and (<= ULTIMATE.start_main_~i~6 1) (<= 1 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {468#(and (<= ULTIMATE.start_main_~i~6 2) (<= 2 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:58:03,493 INFO L273 TraceCheckUtils]: 3: Hoare triple {468#(and (<= ULTIMATE.start_main_~i~6 2) (<= 2 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {472#(and (<= 3 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~i~6 3))} is VALID [2019-01-31 14:58:03,494 INFO L273 TraceCheckUtils]: 4: Hoare triple {472#(and (<= 3 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~i~6 3))} assume !(main_~i~6 < main_~MAX~6);main_~str1~6 := main_~str1~6[main_~MAX~6 - 1 := 0];main_~j~6 := 0;main_~i~6 := main_~MAX~6 - 1; {476#(and (= ULTIMATE.start_main_~j~6 0) (<= ULTIMATE.start_main_~MAX~6 3) (<= 3 ULTIMATE.start_main_~MAX~6))} is VALID [2019-01-31 14:58:03,495 INFO L273 TraceCheckUtils]: 5: Hoare triple {476#(and (= ULTIMATE.start_main_~j~6 0) (<= ULTIMATE.start_main_~MAX~6 3) (<= 3 ULTIMATE.start_main_~MAX~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {480#(and (= ULTIMATE.start_main_~j~6 1) (<= ULTIMATE.start_main_~MAX~6 3) (<= 3 ULTIMATE.start_main_~MAX~6))} is VALID [2019-01-31 14:58:03,496 INFO L273 TraceCheckUtils]: 6: Hoare triple {480#(and (= ULTIMATE.start_main_~j~6 1) (<= ULTIMATE.start_main_~MAX~6 3) (<= 3 ULTIMATE.start_main_~MAX~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {484#(and (<= ULTIMATE.start_main_~MAX~6 3) (<= 3 ULTIMATE.start_main_~MAX~6) (= ULTIMATE.start_main_~j~6 2))} is VALID [2019-01-31 14:58:03,497 INFO L273 TraceCheckUtils]: 7: Hoare triple {484#(and (<= ULTIMATE.start_main_~MAX~6 3) (<= 3 ULTIMATE.start_main_~MAX~6) (= ULTIMATE.start_main_~j~6 2))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {488#(and (= (select ULTIMATE.start_main_~str1~6 0) (select ULTIMATE.start_main_~str2~6 2)) (<= ULTIMATE.start_main_~MAX~6 3) (<= 3 ULTIMATE.start_main_~MAX~6))} is VALID [2019-01-31 14:58:03,498 INFO L273 TraceCheckUtils]: 8: Hoare triple {488#(and (= (select ULTIMATE.start_main_~str1~6 0) (select ULTIMATE.start_main_~str2~6 2)) (<= ULTIMATE.start_main_~MAX~6 3) (<= 3 ULTIMATE.start_main_~MAX~6))} assume !(main_~i~6 >= 0);main_~j~6 := main_~MAX~6 - 1;main_~i~6 := 0;assume !!(main_~i~6 < main_~MAX~6);__VERIFIER_assert_#in~cond := (if main_~str1~6[main_~i~6] == main_~str2~6[main_~j~6] then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond;assume __VERIFIER_assert_~cond == 0;assume !false; {450#false} is VALID [2019-01-31 14:58:03,498 INFO L273 TraceCheckUtils]: 9: Hoare triple {450#false} assume !false; {450#false} is VALID [2019-01-31 14:58:03,499 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-31 14:58:03,499 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2019-01-31 14:58:03,537 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 5 [2019-01-31 14:58:03,539 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-01-31 14:58:03,542 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-31 14:58:03,542 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:14, output treesize:5 [2019-01-31 14:58:03,544 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-01-31 14:58:03,544 WARN L398 uantifierElimination]: Input elimination task: ∀ [ULTIMATE.start_main_~str2~6, ULTIMATE.start_main_~str1~6]. (let ((.cse0 (select ULTIMATE.start_main_~str1~6 0))) (= .cse0 (select (store ULTIMATE.start_main_~str2~6 ULTIMATE.start_main_~j~6 .cse0) (+ ULTIMATE.start_main_~MAX~6 (- 1))))) [2019-01-31 14:58:03,545 WARN L399 uantifierElimination]: ElimStorePlain result: ∀ []. (= (+ ULTIMATE.start_main_~j~6 1) ULTIMATE.start_main_~MAX~6) [2019-01-31 14:58:03,593 INFO L273 TraceCheckUtils]: 9: Hoare triple {450#false} assume !false; {450#false} is VALID [2019-01-31 14:58:03,594 INFO L273 TraceCheckUtils]: 8: Hoare triple {458#(= (select ULTIMATE.start_main_~str1~6 0) (select ULTIMATE.start_main_~str2~6 (+ ULTIMATE.start_main_~MAX~6 (- 1))))} assume !(main_~i~6 >= 0);main_~j~6 := main_~MAX~6 - 1;main_~i~6 := 0;assume !!(main_~i~6 < main_~MAX~6);__VERIFIER_assert_#in~cond := (if main_~str1~6[main_~i~6] == main_~str2~6[main_~j~6] then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond;assume __VERIFIER_assert_~cond == 0;assume !false; {450#false} is VALID [2019-01-31 14:58:03,596 INFO L273 TraceCheckUtils]: 7: Hoare triple {457#(= (+ ULTIMATE.start_main_~j~6 1) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {458#(= (select ULTIMATE.start_main_~str1~6 0) (select ULTIMATE.start_main_~str2~6 (+ ULTIMATE.start_main_~MAX~6 (- 1))))} is VALID [2019-01-31 14:58:03,598 INFO L273 TraceCheckUtils]: 6: Hoare triple {456#(= (+ ULTIMATE.start_main_~j~6 2) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {457#(= (+ ULTIMATE.start_main_~j~6 1) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:58:03,599 INFO L273 TraceCheckUtils]: 5: Hoare triple {455#(= (+ ULTIMATE.start_main_~j~6 3) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {456#(= (+ ULTIMATE.start_main_~j~6 2) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:58:03,600 INFO L273 TraceCheckUtils]: 4: Hoare triple {454#(or (<= (+ ULTIMATE.start_main_~i~6 1) ULTIMATE.start_main_~MAX~6) (= 3 ULTIMATE.start_main_~MAX~6))} assume !(main_~i~6 < main_~MAX~6);main_~str1~6 := main_~str1~6[main_~MAX~6 - 1 := 0];main_~j~6 := 0;main_~i~6 := main_~MAX~6 - 1; {455#(= (+ ULTIMATE.start_main_~j~6 3) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:58:03,601 INFO L273 TraceCheckUtils]: 3: Hoare triple {468#(and (<= ULTIMATE.start_main_~i~6 2) (<= 2 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {454#(or (<= (+ ULTIMATE.start_main_~i~6 1) ULTIMATE.start_main_~MAX~6) (= 3 ULTIMATE.start_main_~MAX~6))} is VALID [2019-01-31 14:58:03,601 INFO L273 TraceCheckUtils]: 2: Hoare triple {452#(and (<= ULTIMATE.start_main_~i~6 1) (<= 1 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {468#(and (<= ULTIMATE.start_main_~i~6 2) (<= 2 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:58:03,602 INFO L273 TraceCheckUtils]: 1: Hoare triple {451#(and (<= ULTIMATE.start_main_~i~6 0) (<= 0 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {452#(and (<= ULTIMATE.start_main_~i~6 1) (<= 1 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:58:03,603 INFO L273 TraceCheckUtils]: 0: Hoare triple {449#true} havoc main_#res;havoc main_#t~nondet0, main_#t~nondet2, main_#t~post1, main_#t~post4, main_#t~post3, main_#t~post6, main_#t~post5, main_~MAX~6, main_~str1~6, main_~str2~6, main_~cont~6, main_~i~6, main_~j~6;main_~MAX~6 := (if main_#t~nondet0 % 4294967296 % 4294967296 <= 2147483647 then main_#t~nondet0 % 4294967296 % 4294967296 else main_#t~nondet0 % 4294967296 % 4294967296 - 4294967296);havoc main_#t~nondet0;havoc main_~str1~6;havoc main_~str2~6;havoc main_~cont~6;havoc main_~i~6;havoc main_~j~6;main_~cont~6 := 0;main_~i~6 := 0; {451#(and (<= ULTIMATE.start_main_~i~6 0) (<= 0 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:58:03,603 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-31 14:58:03,623 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-01-31 14:58:03,623 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 15 [2019-01-31 14:58:03,623 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-01-31 14:58:03,624 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 10 [2019-01-31 14:58:03,624 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-01-31 14:58:03,624 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 16 states. [2019-01-31 14:58:03,645 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 17 edges. 17 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-01-31 14:58:03,646 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2019-01-31 14:58:03,646 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2019-01-31 14:58:03,646 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=197, Unknown=0, NotChecked=0, Total=240 [2019-01-31 14:58:03,647 INFO L87 Difference]: Start difference. First operand 11 states and 12 transitions. Second operand 16 states. [2019-01-31 14:58:04,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 14:58:04,381 INFO L93 Difference]: Finished difference Result 18 states and 20 transitions. [2019-01-31 14:58:04,381 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-01-31 14:58:04,381 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 10 [2019-01-31 14:58:04,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-31 14:58:04,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2019-01-31 14:58:04,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 18 transitions. [2019-01-31 14:58:04,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2019-01-31 14:58:04,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 18 transitions. [2019-01-31 14:58:04,384 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 13 states and 18 transitions. [2019-01-31 14:58:04,410 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 18 edges. 18 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-01-31 14:58:04,411 INFO L225 Difference]: With dead ends: 18 [2019-01-31 14:58:04,411 INFO L226 Difference]: Without dead ends: 12 [2019-01-31 14:58:04,412 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 10 SyntacticMatches, 3 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=92, Invalid=370, Unknown=0, NotChecked=0, Total=462 [2019-01-31 14:58:04,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2019-01-31 14:58:04,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2019-01-31 14:58:04,496 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-01-31 14:58:04,496 INFO L82 GeneralOperation]: Start isEquivalent. First operand 12 states. Second operand 12 states. [2019-01-31 14:58:04,497 INFO L74 IsIncluded]: Start isIncluded. First operand 12 states. Second operand 12 states. [2019-01-31 14:58:04,497 INFO L87 Difference]: Start difference. First operand 12 states. Second operand 12 states. [2019-01-31 14:58:04,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 14:58:04,498 INFO L93 Difference]: Finished difference Result 12 states and 13 transitions. [2019-01-31 14:58:04,498 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 13 transitions. [2019-01-31 14:58:04,499 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-31 14:58:04,499 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-01-31 14:58:04,499 INFO L74 IsIncluded]: Start isIncluded. First operand 12 states. Second operand 12 states. [2019-01-31 14:58:04,499 INFO L87 Difference]: Start difference. First operand 12 states. Second operand 12 states. [2019-01-31 14:58:04,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 14:58:04,500 INFO L93 Difference]: Finished difference Result 12 states and 13 transitions. [2019-01-31 14:58:04,500 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 13 transitions. [2019-01-31 14:58:04,500 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-31 14:58:04,500 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-01-31 14:58:04,501 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-01-31 14:58:04,501 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-01-31 14:58:04,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2019-01-31 14:58:04,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 13 transitions. [2019-01-31 14:58:04,502 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 13 transitions. Word has length 10 [2019-01-31 14:58:04,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-31 14:58:04,502 INFO L480 AbstractCegarLoop]: Abstraction has 12 states and 13 transitions. [2019-01-31 14:58:04,502 INFO L481 AbstractCegarLoop]: Interpolant automaton has 16 states. [2019-01-31 14:58:04,502 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 13 transitions. [2019-01-31 14:58:04,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-01-31 14:58:04,503 INFO L394 BasicCegarLoop]: Found error trace [2019-01-31 14:58:04,503 INFO L402 BasicCegarLoop]: trace histogram [4, 3, 1, 1, 1, 1] [2019-01-31 14:58:04,503 INFO L423 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2019-01-31 14:58:04,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-31 14:58:04,503 INFO L82 PathProgramCache]: Analyzing trace with hash 375043724, now seen corresponding path program 5 times [2019-01-31 14:58:04,503 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-01-31 14:58:04,504 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-31 14:58:04,504 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-31 14:58:04,504 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-31 14:58:04,505 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-01-31 14:58:04,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-31 14:58:04,593 INFO L273 TraceCheckUtils]: 0: Hoare triple {612#true} havoc main_#res;havoc main_#t~nondet0, main_#t~nondet2, main_#t~post1, main_#t~post4, main_#t~post3, main_#t~post6, main_#t~post5, main_~MAX~6, main_~str1~6, main_~str2~6, main_~cont~6, main_~i~6, main_~j~6;main_~MAX~6 := (if main_#t~nondet0 % 4294967296 % 4294967296 <= 2147483647 then main_#t~nondet0 % 4294967296 % 4294967296 else main_#t~nondet0 % 4294967296 % 4294967296 - 4294967296);havoc main_#t~nondet0;havoc main_~str1~6;havoc main_~str2~6;havoc main_~cont~6;havoc main_~i~6;havoc main_~j~6;main_~cont~6 := 0;main_~i~6 := 0; {614#(<= 0 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:04,595 INFO L273 TraceCheckUtils]: 1: Hoare triple {614#(<= 0 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {615#(<= 1 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:04,595 INFO L273 TraceCheckUtils]: 2: Hoare triple {615#(<= 1 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {616#(<= 2 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:04,597 INFO L273 TraceCheckUtils]: 3: Hoare triple {616#(<= 2 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {617#(<= 3 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:04,598 INFO L273 TraceCheckUtils]: 4: Hoare triple {617#(<= 3 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {618#(<= 4 ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:58:04,603 INFO L273 TraceCheckUtils]: 5: Hoare triple {618#(<= 4 ULTIMATE.start_main_~MAX~6)} assume !(main_~i~6 < main_~MAX~6);main_~str1~6 := main_~str1~6[main_~MAX~6 - 1 := 0];main_~j~6 := 0;main_~i~6 := main_~MAX~6 - 1; {617#(<= 3 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:04,605 INFO L273 TraceCheckUtils]: 6: Hoare triple {617#(<= 3 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {616#(<= 2 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:04,608 INFO L273 TraceCheckUtils]: 7: Hoare triple {616#(<= 2 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {615#(<= 1 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:04,608 INFO L273 TraceCheckUtils]: 8: Hoare triple {615#(<= 1 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {614#(<= 0 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:04,610 INFO L273 TraceCheckUtils]: 9: Hoare triple {614#(<= 0 ULTIMATE.start_main_~i~6)} assume !(main_~i~6 >= 0);main_~j~6 := main_~MAX~6 - 1;main_~i~6 := 0;assume !!(main_~i~6 < main_~MAX~6);__VERIFIER_assert_#in~cond := (if main_~str1~6[main_~i~6] == main_~str2~6[main_~j~6] then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond;assume __VERIFIER_assert_~cond == 0;assume !false; {613#false} is VALID [2019-01-31 14:58:04,610 INFO L273 TraceCheckUtils]: 10: Hoare triple {613#false} assume !false; {613#false} is VALID [2019-01-31 14:58:04,610 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 6 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-31 14:58:04,610 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-31 14:58:04,611 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-01-31 14:58:04,611 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-01-31 14:58:04,611 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-01-31 14:58:04,611 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-31 14:58:04,611 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-01-31 14:58:04,619 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2019-01-31 14:58:04,619 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST2 (IT: FPandBP) [2019-01-31 14:58:04,633 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2019-01-31 14:58:04,634 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-01-31 14:58:04,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-31 14:58:04,645 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-31 14:58:04,690 INFO L273 TraceCheckUtils]: 0: Hoare triple {612#true} havoc main_#res;havoc main_#t~nondet0, main_#t~nondet2, main_#t~post1, main_#t~post4, main_#t~post3, main_#t~post6, main_#t~post5, main_~MAX~6, main_~str1~6, main_~str2~6, main_~cont~6, main_~i~6, main_~j~6;main_~MAX~6 := (if main_#t~nondet0 % 4294967296 % 4294967296 <= 2147483647 then main_#t~nondet0 % 4294967296 % 4294967296 else main_#t~nondet0 % 4294967296 % 4294967296 - 4294967296);havoc main_#t~nondet0;havoc main_~str1~6;havoc main_~str2~6;havoc main_~cont~6;havoc main_~i~6;havoc main_~j~6;main_~cont~6 := 0;main_~i~6 := 0; {614#(<= 0 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:04,691 INFO L273 TraceCheckUtils]: 1: Hoare triple {614#(<= 0 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {615#(<= 1 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:04,692 INFO L273 TraceCheckUtils]: 2: Hoare triple {615#(<= 1 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {616#(<= 2 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:04,693 INFO L273 TraceCheckUtils]: 3: Hoare triple {616#(<= 2 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {617#(<= 3 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:04,695 INFO L273 TraceCheckUtils]: 4: Hoare triple {617#(<= 3 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {618#(<= 4 ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:58:04,696 INFO L273 TraceCheckUtils]: 5: Hoare triple {618#(<= 4 ULTIMATE.start_main_~MAX~6)} assume !(main_~i~6 < main_~MAX~6);main_~str1~6 := main_~str1~6[main_~MAX~6 - 1 := 0];main_~j~6 := 0;main_~i~6 := main_~MAX~6 - 1; {617#(<= 3 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:04,697 INFO L273 TraceCheckUtils]: 6: Hoare triple {617#(<= 3 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {616#(<= 2 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:04,698 INFO L273 TraceCheckUtils]: 7: Hoare triple {616#(<= 2 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {615#(<= 1 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:04,699 INFO L273 TraceCheckUtils]: 8: Hoare triple {615#(<= 1 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {614#(<= 0 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:04,713 INFO L273 TraceCheckUtils]: 9: Hoare triple {614#(<= 0 ULTIMATE.start_main_~i~6)} assume !(main_~i~6 >= 0);main_~j~6 := main_~MAX~6 - 1;main_~i~6 := 0;assume !!(main_~i~6 < main_~MAX~6);__VERIFIER_assert_#in~cond := (if main_~str1~6[main_~i~6] == main_~str2~6[main_~j~6] then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond;assume __VERIFIER_assert_~cond == 0;assume !false; {613#false} is VALID [2019-01-31 14:58:04,713 INFO L273 TraceCheckUtils]: 10: Hoare triple {613#false} assume !false; {613#false} is VALID [2019-01-31 14:58:04,713 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 6 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-31 14:58:04,714 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2019-01-31 14:58:04,781 INFO L273 TraceCheckUtils]: 10: Hoare triple {613#false} assume !false; {613#false} is VALID [2019-01-31 14:58:04,782 INFO L273 TraceCheckUtils]: 9: Hoare triple {614#(<= 0 ULTIMATE.start_main_~i~6)} assume !(main_~i~6 >= 0);main_~j~6 := main_~MAX~6 - 1;main_~i~6 := 0;assume !!(main_~i~6 < main_~MAX~6);__VERIFIER_assert_#in~cond := (if main_~str1~6[main_~i~6] == main_~str2~6[main_~j~6] then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond;assume __VERIFIER_assert_~cond == 0;assume !false; {613#false} is VALID [2019-01-31 14:58:04,783 INFO L273 TraceCheckUtils]: 8: Hoare triple {615#(<= 1 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {614#(<= 0 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:04,784 INFO L273 TraceCheckUtils]: 7: Hoare triple {616#(<= 2 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {615#(<= 1 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:04,788 INFO L273 TraceCheckUtils]: 6: Hoare triple {617#(<= 3 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {616#(<= 2 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:04,789 INFO L273 TraceCheckUtils]: 5: Hoare triple {618#(<= 4 ULTIMATE.start_main_~MAX~6)} assume !(main_~i~6 < main_~MAX~6);main_~str1~6 := main_~str1~6[main_~MAX~6 - 1 := 0];main_~j~6 := 0;main_~i~6 := main_~MAX~6 - 1; {617#(<= 3 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:04,789 INFO L273 TraceCheckUtils]: 4: Hoare triple {617#(<= 3 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {618#(<= 4 ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:58:04,790 INFO L273 TraceCheckUtils]: 3: Hoare triple {616#(<= 2 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {617#(<= 3 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:04,790 INFO L273 TraceCheckUtils]: 2: Hoare triple {615#(<= 1 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {616#(<= 2 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:04,791 INFO L273 TraceCheckUtils]: 1: Hoare triple {614#(<= 0 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {615#(<= 1 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:04,791 INFO L273 TraceCheckUtils]: 0: Hoare triple {612#true} havoc main_#res;havoc main_#t~nondet0, main_#t~nondet2, main_#t~post1, main_#t~post4, main_#t~post3, main_#t~post6, main_#t~post5, main_~MAX~6, main_~str1~6, main_~str2~6, main_~cont~6, main_~i~6, main_~j~6;main_~MAX~6 := (if main_#t~nondet0 % 4294967296 % 4294967296 <= 2147483647 then main_#t~nondet0 % 4294967296 % 4294967296 else main_#t~nondet0 % 4294967296 % 4294967296 - 4294967296);havoc main_#t~nondet0;havoc main_~str1~6;havoc main_~str2~6;havoc main_~cont~6;havoc main_~i~6;havoc main_~j~6;main_~cont~6 := 0;main_~i~6 := 0; {614#(<= 0 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:04,792 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 6 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-31 14:58:04,811 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-01-31 14:58:04,811 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 6 [2019-01-31 14:58:04,811 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-01-31 14:58:04,812 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 11 [2019-01-31 14:58:04,812 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-01-31 14:58:04,812 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 7 states. [2019-01-31 14:58:04,826 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 11 edges. 11 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-01-31 14:58:04,827 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-01-31 14:58:04,827 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-01-31 14:58:04,827 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-01-31 14:58:04,827 INFO L87 Difference]: Start difference. First operand 12 states and 13 transitions. Second operand 7 states. [2019-01-31 14:58:04,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 14:58:04,989 INFO L93 Difference]: Finished difference Result 15 states and 16 transitions. [2019-01-31 14:58:04,989 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-01-31 14:58:04,989 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 11 [2019-01-31 14:58:04,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-31 14:58:04,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2019-01-31 14:58:04,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 16 transitions. [2019-01-31 14:58:04,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2019-01-31 14:58:04,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 16 transitions. [2019-01-31 14:58:04,991 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 11 states and 16 transitions. [2019-01-31 14:58:05,006 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 16 edges. 16 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-01-31 14:58:05,008 INFO L225 Difference]: With dead ends: 15 [2019-01-31 14:58:05,008 INFO L226 Difference]: Without dead ends: 13 [2019-01-31 14:58:05,008 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 17 SyntacticMatches, 8 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2019-01-31 14:58:05,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2019-01-31 14:58:05,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2019-01-31 14:58:05,059 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-01-31 14:58:05,059 INFO L82 GeneralOperation]: Start isEquivalent. First operand 13 states. Second operand 13 states. [2019-01-31 14:58:05,059 INFO L74 IsIncluded]: Start isIncluded. First operand 13 states. Second operand 13 states. [2019-01-31 14:58:05,059 INFO L87 Difference]: Start difference. First operand 13 states. Second operand 13 states. [2019-01-31 14:58:05,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 14:58:05,061 INFO L93 Difference]: Finished difference Result 13 states and 14 transitions. [2019-01-31 14:58:05,061 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 14 transitions. [2019-01-31 14:58:05,061 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-31 14:58:05,061 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-01-31 14:58:05,061 INFO L74 IsIncluded]: Start isIncluded. First operand 13 states. Second operand 13 states. [2019-01-31 14:58:05,061 INFO L87 Difference]: Start difference. First operand 13 states. Second operand 13 states. [2019-01-31 14:58:05,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 14:58:05,062 INFO L93 Difference]: Finished difference Result 13 states and 14 transitions. [2019-01-31 14:58:05,062 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 14 transitions. [2019-01-31 14:58:05,063 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-31 14:58:05,063 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-01-31 14:58:05,063 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-01-31 14:58:05,063 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-01-31 14:58:05,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2019-01-31 14:58:05,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 14 transitions. [2019-01-31 14:58:05,064 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 14 transitions. Word has length 11 [2019-01-31 14:58:05,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-31 14:58:05,064 INFO L480 AbstractCegarLoop]: Abstraction has 13 states and 14 transitions. [2019-01-31 14:58:05,065 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-01-31 14:58:05,065 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 14 transitions. [2019-01-31 14:58:05,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-01-31 14:58:05,065 INFO L394 BasicCegarLoop]: Found error trace [2019-01-31 14:58:05,065 INFO L402 BasicCegarLoop]: trace histogram [4, 4, 1, 1, 1, 1] [2019-01-31 14:58:05,065 INFO L423 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2019-01-31 14:58:05,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-31 14:58:05,066 INFO L82 PathProgramCache]: Analyzing trace with hash -1258544630, now seen corresponding path program 6 times [2019-01-31 14:58:05,066 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-01-31 14:58:05,067 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-31 14:58:05,067 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-01-31 14:58:05,067 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-31 14:58:05,067 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-01-31 14:58:05,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-31 14:58:05,332 INFO L273 TraceCheckUtils]: 0: Hoare triple {766#true} havoc main_#res;havoc main_#t~nondet0, main_#t~nondet2, main_#t~post1, main_#t~post4, main_#t~post3, main_#t~post6, main_#t~post5, main_~MAX~6, main_~str1~6, main_~str2~6, main_~cont~6, main_~i~6, main_~j~6;main_~MAX~6 := (if main_#t~nondet0 % 4294967296 % 4294967296 <= 2147483647 then main_#t~nondet0 % 4294967296 % 4294967296 else main_#t~nondet0 % 4294967296 % 4294967296 - 4294967296);havoc main_#t~nondet0;havoc main_~str1~6;havoc main_~str2~6;havoc main_~cont~6;havoc main_~i~6;havoc main_~j~6;main_~cont~6 := 0;main_~i~6 := 0; {768#(and (<= ULTIMATE.start_main_~i~6 0) (<= 0 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:58:05,333 INFO L273 TraceCheckUtils]: 1: Hoare triple {768#(and (<= ULTIMATE.start_main_~i~6 0) (<= 0 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {769#(and (<= ULTIMATE.start_main_~i~6 1) (<= 1 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:58:05,334 INFO L273 TraceCheckUtils]: 2: Hoare triple {769#(and (<= ULTIMATE.start_main_~i~6 1) (<= 1 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {770#(and (<= ULTIMATE.start_main_~i~6 2) (<= 2 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:58:05,335 INFO L273 TraceCheckUtils]: 3: Hoare triple {770#(and (<= ULTIMATE.start_main_~i~6 2) (<= 2 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {771#(or (not (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 1))) (and (<= 3 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 3)))} is VALID [2019-01-31 14:58:05,337 INFO L273 TraceCheckUtils]: 4: Hoare triple {771#(or (not (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 1))) (and (<= 3 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 3)))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {772#(or (<= (+ ULTIMATE.start_main_~i~6 1) ULTIMATE.start_main_~MAX~6) (= 4 ULTIMATE.start_main_~MAX~6))} is VALID [2019-01-31 14:58:05,338 INFO L273 TraceCheckUtils]: 5: Hoare triple {772#(or (<= (+ ULTIMATE.start_main_~i~6 1) ULTIMATE.start_main_~MAX~6) (= 4 ULTIMATE.start_main_~MAX~6))} assume !(main_~i~6 < main_~MAX~6);main_~str1~6 := main_~str1~6[main_~MAX~6 - 1 := 0];main_~j~6 := 0;main_~i~6 := main_~MAX~6 - 1; {773#(= (+ ULTIMATE.start_main_~j~6 4) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:58:05,339 INFO L273 TraceCheckUtils]: 6: Hoare triple {773#(= (+ ULTIMATE.start_main_~j~6 4) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {774#(= (+ ULTIMATE.start_main_~j~6 3) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:58:05,340 INFO L273 TraceCheckUtils]: 7: Hoare triple {774#(= (+ ULTIMATE.start_main_~j~6 3) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {775#(= (+ ULTIMATE.start_main_~j~6 2) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:58:05,341 INFO L273 TraceCheckUtils]: 8: Hoare triple {775#(= (+ ULTIMATE.start_main_~j~6 2) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {776#(= (+ ULTIMATE.start_main_~j~6 1) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:58:05,342 INFO L273 TraceCheckUtils]: 9: Hoare triple {776#(= (+ ULTIMATE.start_main_~j~6 1) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {777#(= (select ULTIMATE.start_main_~str1~6 0) (select ULTIMATE.start_main_~str2~6 (+ ULTIMATE.start_main_~MAX~6 (- 1))))} is VALID [2019-01-31 14:58:05,343 INFO L273 TraceCheckUtils]: 10: Hoare triple {777#(= (select ULTIMATE.start_main_~str1~6 0) (select ULTIMATE.start_main_~str2~6 (+ ULTIMATE.start_main_~MAX~6 (- 1))))} assume !(main_~i~6 >= 0);main_~j~6 := main_~MAX~6 - 1;main_~i~6 := 0;assume !!(main_~i~6 < main_~MAX~6);__VERIFIER_assert_#in~cond := (if main_~str1~6[main_~i~6] == main_~str2~6[main_~j~6] then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond;assume __VERIFIER_assert_~cond == 0;assume !false; {767#false} is VALID [2019-01-31 14:58:05,344 INFO L273 TraceCheckUtils]: 11: Hoare triple {767#false} assume !false; {767#false} is VALID [2019-01-31 14:58:05,345 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-31 14:58:05,345 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-31 14:58:05,345 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-01-31 14:58:05,346 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-01-31 14:58:05,346 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-01-31 14:58:05,346 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-31 14:58:05,346 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-01-31 14:58:05,362 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2019-01-31 14:58:05,363 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder TERMS_WITH_SMALL_CONSTANTS_FIRST (IT: FPandBP) [2019-01-31 14:58:05,375 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-01-31 14:58:05,375 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-01-31 14:58:05,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-31 14:58:05,384 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-31 14:58:05,523 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2019-01-31 14:58:05,525 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-01-31 14:58:05,532 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-31 14:58:05,532 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:17, output treesize:16 [2019-01-31 14:58:05,535 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-01-31 14:58:05,535 WARN L398 uantifierElimination]: Input elimination task: ∃ [v_ULTIMATE.start_main_~str2~6_20]. (and (<= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 5)) (= ULTIMATE.start_main_~str2~6 (store v_ULTIMATE.start_main_~str2~6_20 3 (select ULTIMATE.start_main_~str1~6 0))) (<= 4 ULTIMATE.start_main_~MAX~6)) [2019-01-31 14:58:05,535 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (and (<= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 5)) (= (select ULTIMATE.start_main_~str1~6 0) (select ULTIMATE.start_main_~str2~6 3)) (<= 4 ULTIMATE.start_main_~MAX~6)) [2019-01-31 14:58:05,569 INFO L273 TraceCheckUtils]: 0: Hoare triple {766#true} havoc main_#res;havoc main_#t~nondet0, main_#t~nondet2, main_#t~post1, main_#t~post4, main_#t~post3, main_#t~post6, main_#t~post5, main_~MAX~6, main_~str1~6, main_~str2~6, main_~cont~6, main_~i~6, main_~j~6;main_~MAX~6 := (if main_#t~nondet0 % 4294967296 % 4294967296 <= 2147483647 then main_#t~nondet0 % 4294967296 % 4294967296 else main_#t~nondet0 % 4294967296 % 4294967296 - 4294967296);havoc main_#t~nondet0;havoc main_~str1~6;havoc main_~str2~6;havoc main_~cont~6;havoc main_~i~6;havoc main_~j~6;main_~cont~6 := 0;main_~i~6 := 0; {766#true} is VALID [2019-01-31 14:58:05,570 INFO L273 TraceCheckUtils]: 1: Hoare triple {766#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {766#true} is VALID [2019-01-31 14:58:05,570 INFO L273 TraceCheckUtils]: 2: Hoare triple {766#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {766#true} is VALID [2019-01-31 14:58:05,570 INFO L273 TraceCheckUtils]: 3: Hoare triple {766#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {766#true} is VALID [2019-01-31 14:58:05,571 INFO L273 TraceCheckUtils]: 4: Hoare triple {766#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {766#true} is VALID [2019-01-31 14:58:05,571 INFO L273 TraceCheckUtils]: 5: Hoare triple {766#true} assume !(main_~i~6 < main_~MAX~6);main_~str1~6 := main_~str1~6[main_~MAX~6 - 1 := 0];main_~j~6 := 0;main_~i~6 := main_~MAX~6 - 1; {796#(and (= ULTIMATE.start_main_~j~6 0) (= (+ ULTIMATE.start_main_~i~6 1) ULTIMATE.start_main_~MAX~6))} is VALID [2019-01-31 14:58:05,572 INFO L273 TraceCheckUtils]: 6: Hoare triple {796#(and (= ULTIMATE.start_main_~j~6 0) (= (+ ULTIMATE.start_main_~i~6 1) ULTIMATE.start_main_~MAX~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {800#(and (= ULTIMATE.start_main_~j~6 1) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 2)))} is VALID [2019-01-31 14:58:05,573 INFO L273 TraceCheckUtils]: 7: Hoare triple {800#(and (= ULTIMATE.start_main_~j~6 1) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 2)))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {804#(and (= (+ ULTIMATE.start_main_~i~6 3) ULTIMATE.start_main_~MAX~6) (= ULTIMATE.start_main_~j~6 2))} is VALID [2019-01-31 14:58:05,573 INFO L273 TraceCheckUtils]: 8: Hoare triple {804#(and (= (+ ULTIMATE.start_main_~i~6 3) ULTIMATE.start_main_~MAX~6) (= ULTIMATE.start_main_~j~6 2))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {808#(and (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 4)) (= ULTIMATE.start_main_~j~6 3))} is VALID [2019-01-31 14:58:05,574 INFO L273 TraceCheckUtils]: 9: Hoare triple {808#(and (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 4)) (= ULTIMATE.start_main_~j~6 3))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {812#(and (<= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 5)) (= (select ULTIMATE.start_main_~str1~6 0) (select ULTIMATE.start_main_~str2~6 3)) (<= 4 ULTIMATE.start_main_~MAX~6))} is VALID [2019-01-31 14:58:05,575 INFO L273 TraceCheckUtils]: 10: Hoare triple {812#(and (<= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 5)) (= (select ULTIMATE.start_main_~str1~6 0) (select ULTIMATE.start_main_~str2~6 3)) (<= 4 ULTIMATE.start_main_~MAX~6))} assume !(main_~i~6 >= 0);main_~j~6 := main_~MAX~6 - 1;main_~i~6 := 0;assume !!(main_~i~6 < main_~MAX~6);__VERIFIER_assert_#in~cond := (if main_~str1~6[main_~i~6] == main_~str2~6[main_~j~6] then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond;assume __VERIFIER_assert_~cond == 0;assume !false; {767#false} is VALID [2019-01-31 14:58:05,575 INFO L273 TraceCheckUtils]: 11: Hoare triple {767#false} assume !false; {767#false} is VALID [2019-01-31 14:58:05,575 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2019-01-31 14:58:05,576 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2019-01-31 14:58:05,674 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 5 [2019-01-31 14:58:05,679 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-01-31 14:58:05,690 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-31 14:58:05,690 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:22, output treesize:12 [2019-01-31 14:58:05,693 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-01-31 14:58:05,693 WARN L398 uantifierElimination]: Input elimination task: ∀ [ULTIMATE.start_main_~str2~6, ULTIMATE.start_main_~str1~6]. (or (not (<= 0 ULTIMATE.start_main_~i~6)) (let ((.cse0 (select ULTIMATE.start_main_~str1~6 0))) (= .cse0 (select (store ULTIMATE.start_main_~str2~6 ULTIMATE.start_main_~j~6 .cse0) (+ ULTIMATE.start_main_~MAX~6 (- 1))))) (< 0 ULTIMATE.start_main_~i~6)) [2019-01-31 14:58:05,693 WARN L399 uantifierElimination]: ElimStorePlain result: ∀ []. (or (< ULTIMATE.start_main_~i~6 0) (< 0 ULTIMATE.start_main_~i~6) (= (+ ULTIMATE.start_main_~j~6 1) ULTIMATE.start_main_~MAX~6)) [2019-01-31 14:58:05,832 INFO L273 TraceCheckUtils]: 11: Hoare triple {767#false} assume !false; {767#false} is VALID [2019-01-31 14:58:05,833 INFO L273 TraceCheckUtils]: 10: Hoare triple {822#(or (= (select ULTIMATE.start_main_~str1~6 0) (select ULTIMATE.start_main_~str2~6 (+ ULTIMATE.start_main_~MAX~6 (- 1)))) (<= 0 ULTIMATE.start_main_~i~6))} assume !(main_~i~6 >= 0);main_~j~6 := main_~MAX~6 - 1;main_~i~6 := 0;assume !!(main_~i~6 < main_~MAX~6);__VERIFIER_assert_#in~cond := (if main_~str1~6[main_~i~6] == main_~str2~6[main_~j~6] then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond;assume __VERIFIER_assert_~cond == 0;assume !false; {767#false} is VALID [2019-01-31 14:58:05,834 INFO L273 TraceCheckUtils]: 9: Hoare triple {826#(or (< ULTIMATE.start_main_~i~6 0) (< 0 ULTIMATE.start_main_~i~6) (= (+ ULTIMATE.start_main_~j~6 1) ULTIMATE.start_main_~MAX~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {822#(or (= (select ULTIMATE.start_main_~str1~6 0) (select ULTIMATE.start_main_~str2~6 (+ ULTIMATE.start_main_~MAX~6 (- 1)))) (<= 0 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:58:05,835 INFO L273 TraceCheckUtils]: 8: Hoare triple {830#(or (= (+ ULTIMATE.start_main_~j~6 2) ULTIMATE.start_main_~MAX~6) (< 1 ULTIMATE.start_main_~i~6) (< ULTIMATE.start_main_~i~6 1))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {826#(or (< ULTIMATE.start_main_~i~6 0) (< 0 ULTIMATE.start_main_~i~6) (= (+ ULTIMATE.start_main_~j~6 1) ULTIMATE.start_main_~MAX~6))} is VALID [2019-01-31 14:58:05,836 INFO L273 TraceCheckUtils]: 7: Hoare triple {834#(or (= (+ ULTIMATE.start_main_~j~6 3) ULTIMATE.start_main_~MAX~6) (< ULTIMATE.start_main_~i~6 2) (< 2 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {830#(or (= (+ ULTIMATE.start_main_~j~6 2) ULTIMATE.start_main_~MAX~6) (< 1 ULTIMATE.start_main_~i~6) (< ULTIMATE.start_main_~i~6 1))} is VALID [2019-01-31 14:58:05,837 INFO L273 TraceCheckUtils]: 6: Hoare triple {838#(or (= (+ ULTIMATE.start_main_~j~6 4) ULTIMATE.start_main_~MAX~6) (< ULTIMATE.start_main_~i~6 3) (< 3 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {834#(or (= (+ ULTIMATE.start_main_~j~6 3) ULTIMATE.start_main_~MAX~6) (< ULTIMATE.start_main_~i~6 2) (< 2 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:58:05,838 INFO L273 TraceCheckUtils]: 5: Hoare triple {766#true} assume !(main_~i~6 < main_~MAX~6);main_~str1~6 := main_~str1~6[main_~MAX~6 - 1 := 0];main_~j~6 := 0;main_~i~6 := main_~MAX~6 - 1; {838#(or (= (+ ULTIMATE.start_main_~j~6 4) ULTIMATE.start_main_~MAX~6) (< ULTIMATE.start_main_~i~6 3) (< 3 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:58:05,839 INFO L273 TraceCheckUtils]: 4: Hoare triple {766#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {766#true} is VALID [2019-01-31 14:58:05,839 INFO L273 TraceCheckUtils]: 3: Hoare triple {766#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {766#true} is VALID [2019-01-31 14:58:05,839 INFO L273 TraceCheckUtils]: 2: Hoare triple {766#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {766#true} is VALID [2019-01-31 14:58:05,840 INFO L273 TraceCheckUtils]: 1: Hoare triple {766#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {766#true} is VALID [2019-01-31 14:58:05,840 INFO L273 TraceCheckUtils]: 0: Hoare triple {766#true} havoc main_#res;havoc main_#t~nondet0, main_#t~nondet2, main_#t~post1, main_#t~post4, main_#t~post3, main_#t~post6, main_#t~post5, main_~MAX~6, main_~str1~6, main_~str2~6, main_~cont~6, main_~i~6, main_~j~6;main_~MAX~6 := (if main_#t~nondet0 % 4294967296 % 4294967296 <= 2147483647 then main_#t~nondet0 % 4294967296 % 4294967296 else main_#t~nondet0 % 4294967296 % 4294967296 - 4294967296);havoc main_#t~nondet0;havoc main_~str1~6;havoc main_~str2~6;havoc main_~cont~6;havoc main_~i~6;havoc main_~j~6;main_~cont~6 := 0;main_~i~6 := 0; {766#true} is VALID [2019-01-31 14:58:05,840 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2019-01-31 14:58:05,860 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-01-31 14:58:05,860 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 7, 7] total 22 [2019-01-31 14:58:05,860 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-01-31 14:58:05,861 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 12 [2019-01-31 14:58:05,861 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-01-31 14:58:05,861 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 17 states. [2019-01-31 14:58:05,893 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 20 edges. 20 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-01-31 14:58:05,893 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2019-01-31 14:58:05,894 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2019-01-31 14:58:05,894 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=380, Unknown=0, NotChecked=0, Total=462 [2019-01-31 14:58:05,895 INFO L87 Difference]: Start difference. First operand 13 states and 14 transitions. Second operand 17 states. [2019-01-31 14:58:06,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 14:58:06,972 INFO L93 Difference]: Finished difference Result 23 states and 27 transitions. [2019-01-31 14:58:06,972 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2019-01-31 14:58:06,972 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 12 [2019-01-31 14:58:06,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-31 14:58:06,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2019-01-31 14:58:06,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 27 transitions. [2019-01-31 14:58:06,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2019-01-31 14:58:06,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 27 transitions. [2019-01-31 14:58:06,975 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 20 states and 27 transitions. [2019-01-31 14:58:07,024 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 27 edges. 27 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-01-31 14:58:07,025 INFO L225 Difference]: With dead ends: 23 [2019-01-31 14:58:07,025 INFO L226 Difference]: Without dead ends: 15 [2019-01-31 14:58:07,026 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=175, Invalid=755, Unknown=0, NotChecked=0, Total=930 [2019-01-31 14:58:07,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2019-01-31 14:58:07,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2019-01-31 14:58:07,102 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-01-31 14:58:07,102 INFO L82 GeneralOperation]: Start isEquivalent. First operand 15 states. Second operand 15 states. [2019-01-31 14:58:07,102 INFO L74 IsIncluded]: Start isIncluded. First operand 15 states. Second operand 15 states. [2019-01-31 14:58:07,103 INFO L87 Difference]: Start difference. First operand 15 states. Second operand 15 states. [2019-01-31 14:58:07,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 14:58:07,104 INFO L93 Difference]: Finished difference Result 15 states and 16 transitions. [2019-01-31 14:58:07,105 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 16 transitions. [2019-01-31 14:58:07,105 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-31 14:58:07,105 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-01-31 14:58:07,105 INFO L74 IsIncluded]: Start isIncluded. First operand 15 states. Second operand 15 states. [2019-01-31 14:58:07,105 INFO L87 Difference]: Start difference. First operand 15 states. Second operand 15 states. [2019-01-31 14:58:07,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 14:58:07,106 INFO L93 Difference]: Finished difference Result 15 states and 16 transitions. [2019-01-31 14:58:07,106 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 16 transitions. [2019-01-31 14:58:07,107 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-31 14:58:07,107 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-01-31 14:58:07,107 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-01-31 14:58:07,107 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-01-31 14:58:07,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2019-01-31 14:58:07,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 16 transitions. [2019-01-31 14:58:07,108 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 16 transitions. Word has length 12 [2019-01-31 14:58:07,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-31 14:58:07,108 INFO L480 AbstractCegarLoop]: Abstraction has 15 states and 16 transitions. [2019-01-31 14:58:07,108 INFO L481 AbstractCegarLoop]: Interpolant automaton has 17 states. [2019-01-31 14:58:07,109 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 16 transitions. [2019-01-31 14:58:07,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-01-31 14:58:07,109 INFO L394 BasicCegarLoop]: Found error trace [2019-01-31 14:58:07,109 INFO L402 BasicCegarLoop]: trace histogram [5, 5, 1, 1, 1, 1] [2019-01-31 14:58:07,109 INFO L423 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2019-01-31 14:58:07,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-31 14:58:07,110 INFO L82 PathProgramCache]: Analyzing trace with hash -400886667, now seen corresponding path program 7 times [2019-01-31 14:58:07,110 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-01-31 14:58:07,110 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-31 14:58:07,110 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-01-31 14:58:07,110 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-31 14:58:07,110 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-01-31 14:58:07,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-31 14:58:07,453 INFO L273 TraceCheckUtils]: 0: Hoare triple {975#true} havoc main_#res;havoc main_#t~nondet0, main_#t~nondet2, main_#t~post1, main_#t~post4, main_#t~post3, main_#t~post6, main_#t~post5, main_~MAX~6, main_~str1~6, main_~str2~6, main_~cont~6, main_~i~6, main_~j~6;main_~MAX~6 := (if main_#t~nondet0 % 4294967296 % 4294967296 <= 2147483647 then main_#t~nondet0 % 4294967296 % 4294967296 else main_#t~nondet0 % 4294967296 % 4294967296 - 4294967296);havoc main_#t~nondet0;havoc main_~str1~6;havoc main_~str2~6;havoc main_~cont~6;havoc main_~i~6;havoc main_~j~6;main_~cont~6 := 0;main_~i~6 := 0; {977#(and (<= ULTIMATE.start_main_~i~6 0) (<= 0 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:58:07,455 INFO L273 TraceCheckUtils]: 1: Hoare triple {977#(and (<= ULTIMATE.start_main_~i~6 0) (<= 0 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {978#(and (<= ULTIMATE.start_main_~i~6 1) (<= 1 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:58:07,456 INFO L273 TraceCheckUtils]: 2: Hoare triple {978#(and (<= ULTIMATE.start_main_~i~6 1) (<= 1 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {979#(and (<= ULTIMATE.start_main_~i~6 2) (<= 2 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:58:07,457 INFO L273 TraceCheckUtils]: 3: Hoare triple {979#(and (<= ULTIMATE.start_main_~i~6 2) (<= 2 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {980#(and (<= 3 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 3))} is VALID [2019-01-31 14:58:07,458 INFO L273 TraceCheckUtils]: 4: Hoare triple {980#(and (<= 3 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 3))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {981#(or (not (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 1))) (and (<= ULTIMATE.start_main_~i~6 4) (<= 4 ULTIMATE.start_main_~i~6)))} is VALID [2019-01-31 14:58:07,459 INFO L273 TraceCheckUtils]: 5: Hoare triple {981#(or (not (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 1))) (and (<= ULTIMATE.start_main_~i~6 4) (<= 4 ULTIMATE.start_main_~i~6)))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {982#(or (<= (+ ULTIMATE.start_main_~i~6 1) ULTIMATE.start_main_~MAX~6) (= 5 ULTIMATE.start_main_~MAX~6))} is VALID [2019-01-31 14:58:07,460 INFO L273 TraceCheckUtils]: 6: Hoare triple {982#(or (<= (+ ULTIMATE.start_main_~i~6 1) ULTIMATE.start_main_~MAX~6) (= 5 ULTIMATE.start_main_~MAX~6))} assume !(main_~i~6 < main_~MAX~6);main_~str1~6 := main_~str1~6[main_~MAX~6 - 1 := 0];main_~j~6 := 0;main_~i~6 := main_~MAX~6 - 1; {983#(= (+ ULTIMATE.start_main_~j~6 5) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:58:07,461 INFO L273 TraceCheckUtils]: 7: Hoare triple {983#(= (+ ULTIMATE.start_main_~j~6 5) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {984#(= (+ ULTIMATE.start_main_~j~6 4) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:58:07,463 INFO L273 TraceCheckUtils]: 8: Hoare triple {984#(= (+ ULTIMATE.start_main_~j~6 4) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {985#(= (+ ULTIMATE.start_main_~j~6 3) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:58:07,465 INFO L273 TraceCheckUtils]: 9: Hoare triple {985#(= (+ ULTIMATE.start_main_~j~6 3) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {986#(= (+ ULTIMATE.start_main_~j~6 2) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:58:07,466 INFO L273 TraceCheckUtils]: 10: Hoare triple {986#(= (+ ULTIMATE.start_main_~j~6 2) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {987#(= (+ ULTIMATE.start_main_~j~6 1) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:58:07,467 INFO L273 TraceCheckUtils]: 11: Hoare triple {987#(= (+ ULTIMATE.start_main_~j~6 1) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {988#(= (select ULTIMATE.start_main_~str1~6 0) (select ULTIMATE.start_main_~str2~6 (+ ULTIMATE.start_main_~MAX~6 (- 1))))} is VALID [2019-01-31 14:58:07,468 INFO L273 TraceCheckUtils]: 12: Hoare triple {988#(= (select ULTIMATE.start_main_~str1~6 0) (select ULTIMATE.start_main_~str2~6 (+ ULTIMATE.start_main_~MAX~6 (- 1))))} assume !(main_~i~6 >= 0);main_~j~6 := main_~MAX~6 - 1;main_~i~6 := 0;assume !!(main_~i~6 < main_~MAX~6);__VERIFIER_assert_#in~cond := (if main_~str1~6[main_~i~6] == main_~str2~6[main_~j~6] then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond;assume __VERIFIER_assert_~cond == 0;assume !false; {976#false} is VALID [2019-01-31 14:58:07,468 INFO L273 TraceCheckUtils]: 13: Hoare triple {976#false} assume !false; {976#false} is VALID [2019-01-31 14:58:07,469 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-31 14:58:07,469 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-31 14:58:07,469 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-01-31 14:58:07,470 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-01-31 14:58:07,470 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-01-31 14:58:07,470 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-31 14:58:07,470 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-01-31 14:58:07,480 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-31 14:58:07,480 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2019-01-31 14:58:07,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-31 14:58:07,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-31 14:58:07,507 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-31 14:58:07,739 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2019-01-31 14:58:07,741 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-01-31 14:58:07,746 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-31 14:58:07,746 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:15, output treesize:14 [2019-01-31 14:58:07,749 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-01-31 14:58:07,749 WARN L398 uantifierElimination]: Input elimination task: ∃ [v_ULTIMATE.start_main_~str2~6_25]. (and (= (store v_ULTIMATE.start_main_~str2~6_25 4 (select ULTIMATE.start_main_~str1~6 0)) ULTIMATE.start_main_~str2~6) (<= 5 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 5)) [2019-01-31 14:58:07,749 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (and (<= 5 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 5) (= (select ULTIMATE.start_main_~str1~6 0) (select ULTIMATE.start_main_~str2~6 4))) [2019-01-31 14:58:07,784 INFO L273 TraceCheckUtils]: 0: Hoare triple {975#true} havoc main_#res;havoc main_#t~nondet0, main_#t~nondet2, main_#t~post1, main_#t~post4, main_#t~post3, main_#t~post6, main_#t~post5, main_~MAX~6, main_~str1~6, main_~str2~6, main_~cont~6, main_~i~6, main_~j~6;main_~MAX~6 := (if main_#t~nondet0 % 4294967296 % 4294967296 <= 2147483647 then main_#t~nondet0 % 4294967296 % 4294967296 else main_#t~nondet0 % 4294967296 % 4294967296 - 4294967296);havoc main_#t~nondet0;havoc main_~str1~6;havoc main_~str2~6;havoc main_~cont~6;havoc main_~i~6;havoc main_~j~6;main_~cont~6 := 0;main_~i~6 := 0; {977#(and (<= ULTIMATE.start_main_~i~6 0) (<= 0 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:58:07,785 INFO L273 TraceCheckUtils]: 1: Hoare triple {977#(and (<= ULTIMATE.start_main_~i~6 0) (<= 0 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {978#(and (<= ULTIMATE.start_main_~i~6 1) (<= 1 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:58:07,786 INFO L273 TraceCheckUtils]: 2: Hoare triple {978#(and (<= ULTIMATE.start_main_~i~6 1) (<= 1 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {979#(and (<= ULTIMATE.start_main_~i~6 2) (<= 2 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:58:07,787 INFO L273 TraceCheckUtils]: 3: Hoare triple {979#(and (<= ULTIMATE.start_main_~i~6 2) (<= 2 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {980#(and (<= 3 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 3))} is VALID [2019-01-31 14:58:07,788 INFO L273 TraceCheckUtils]: 4: Hoare triple {980#(and (<= 3 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 3))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {1004#(and (<= ULTIMATE.start_main_~i~6 4) (<= 4 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:58:07,788 INFO L273 TraceCheckUtils]: 5: Hoare triple {1004#(and (<= ULTIMATE.start_main_~i~6 4) (<= 4 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {1008#(and (<= 5 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~i~6 5))} is VALID [2019-01-31 14:58:07,789 INFO L273 TraceCheckUtils]: 6: Hoare triple {1008#(and (<= 5 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~i~6 5))} assume !(main_~i~6 < main_~MAX~6);main_~str1~6 := main_~str1~6[main_~MAX~6 - 1 := 0];main_~j~6 := 0;main_~i~6 := main_~MAX~6 - 1; {1012#(and (<= 5 ULTIMATE.start_main_~MAX~6) (= ULTIMATE.start_main_~j~6 0) (<= ULTIMATE.start_main_~MAX~6 5))} is VALID [2019-01-31 14:58:07,792 INFO L273 TraceCheckUtils]: 7: Hoare triple {1012#(and (<= 5 ULTIMATE.start_main_~MAX~6) (= ULTIMATE.start_main_~j~6 0) (<= ULTIMATE.start_main_~MAX~6 5))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {1016#(and (<= 5 ULTIMATE.start_main_~MAX~6) (= ULTIMATE.start_main_~j~6 1) (<= ULTIMATE.start_main_~MAX~6 5))} is VALID [2019-01-31 14:58:07,793 INFO L273 TraceCheckUtils]: 8: Hoare triple {1016#(and (<= 5 ULTIMATE.start_main_~MAX~6) (= ULTIMATE.start_main_~j~6 1) (<= ULTIMATE.start_main_~MAX~6 5))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {1020#(and (<= 5 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 5) (= ULTIMATE.start_main_~j~6 2))} is VALID [2019-01-31 14:58:07,793 INFO L273 TraceCheckUtils]: 9: Hoare triple {1020#(and (<= 5 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 5) (= ULTIMATE.start_main_~j~6 2))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {1024#(and (<= 5 ULTIMATE.start_main_~MAX~6) (= ULTIMATE.start_main_~j~6 3) (<= ULTIMATE.start_main_~MAX~6 5))} is VALID [2019-01-31 14:58:07,794 INFO L273 TraceCheckUtils]: 10: Hoare triple {1024#(and (<= 5 ULTIMATE.start_main_~MAX~6) (= ULTIMATE.start_main_~j~6 3) (<= ULTIMATE.start_main_~MAX~6 5))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {1028#(and (<= 5 ULTIMATE.start_main_~MAX~6) (= ULTIMATE.start_main_~j~6 4) (<= ULTIMATE.start_main_~MAX~6 5))} is VALID [2019-01-31 14:58:07,795 INFO L273 TraceCheckUtils]: 11: Hoare triple {1028#(and (<= 5 ULTIMATE.start_main_~MAX~6) (= ULTIMATE.start_main_~j~6 4) (<= ULTIMATE.start_main_~MAX~6 5))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {1032#(and (<= 5 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 5) (= (select ULTIMATE.start_main_~str1~6 0) (select ULTIMATE.start_main_~str2~6 4)))} is VALID [2019-01-31 14:58:07,796 INFO L273 TraceCheckUtils]: 12: Hoare triple {1032#(and (<= 5 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 5) (= (select ULTIMATE.start_main_~str1~6 0) (select ULTIMATE.start_main_~str2~6 4)))} assume !(main_~i~6 >= 0);main_~j~6 := main_~MAX~6 - 1;main_~i~6 := 0;assume !!(main_~i~6 < main_~MAX~6);__VERIFIER_assert_#in~cond := (if main_~str1~6[main_~i~6] == main_~str2~6[main_~j~6] then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond;assume __VERIFIER_assert_~cond == 0;assume !false; {976#false} is VALID [2019-01-31 14:58:07,796 INFO L273 TraceCheckUtils]: 13: Hoare triple {976#false} assume !false; {976#false} is VALID [2019-01-31 14:58:07,797 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-31 14:58:07,797 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2019-01-31 14:58:07,831 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 5 [2019-01-31 14:58:07,833 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-01-31 14:58:07,836 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-31 14:58:07,836 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:14, output treesize:5 [2019-01-31 14:58:07,838 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-01-31 14:58:07,839 WARN L398 uantifierElimination]: Input elimination task: ∀ [ULTIMATE.start_main_~str2~6, ULTIMATE.start_main_~str1~6]. (let ((.cse0 (select ULTIMATE.start_main_~str1~6 0))) (= .cse0 (select (store ULTIMATE.start_main_~str2~6 ULTIMATE.start_main_~j~6 .cse0) (+ ULTIMATE.start_main_~MAX~6 (- 1))))) [2019-01-31 14:58:07,839 WARN L399 uantifierElimination]: ElimStorePlain result: ∀ []. (= (+ ULTIMATE.start_main_~j~6 1) ULTIMATE.start_main_~MAX~6) [2019-01-31 14:58:07,900 INFO L273 TraceCheckUtils]: 13: Hoare triple {976#false} assume !false; {976#false} is VALID [2019-01-31 14:58:07,901 INFO L273 TraceCheckUtils]: 12: Hoare triple {988#(= (select ULTIMATE.start_main_~str1~6 0) (select ULTIMATE.start_main_~str2~6 (+ ULTIMATE.start_main_~MAX~6 (- 1))))} assume !(main_~i~6 >= 0);main_~j~6 := main_~MAX~6 - 1;main_~i~6 := 0;assume !!(main_~i~6 < main_~MAX~6);__VERIFIER_assert_#in~cond := (if main_~str1~6[main_~i~6] == main_~str2~6[main_~j~6] then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond;assume __VERIFIER_assert_~cond == 0;assume !false; {976#false} is VALID [2019-01-31 14:58:07,902 INFO L273 TraceCheckUtils]: 11: Hoare triple {987#(= (+ ULTIMATE.start_main_~j~6 1) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {988#(= (select ULTIMATE.start_main_~str1~6 0) (select ULTIMATE.start_main_~str2~6 (+ ULTIMATE.start_main_~MAX~6 (- 1))))} is VALID [2019-01-31 14:58:07,903 INFO L273 TraceCheckUtils]: 10: Hoare triple {986#(= (+ ULTIMATE.start_main_~j~6 2) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {987#(= (+ ULTIMATE.start_main_~j~6 1) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:58:07,904 INFO L273 TraceCheckUtils]: 9: Hoare triple {985#(= (+ ULTIMATE.start_main_~j~6 3) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {986#(= (+ ULTIMATE.start_main_~j~6 2) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:58:07,905 INFO L273 TraceCheckUtils]: 8: Hoare triple {984#(= (+ ULTIMATE.start_main_~j~6 4) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {985#(= (+ ULTIMATE.start_main_~j~6 3) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:58:07,912 INFO L273 TraceCheckUtils]: 7: Hoare triple {983#(= (+ ULTIMATE.start_main_~j~6 5) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {984#(= (+ ULTIMATE.start_main_~j~6 4) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:58:07,913 INFO L273 TraceCheckUtils]: 6: Hoare triple {982#(or (<= (+ ULTIMATE.start_main_~i~6 1) ULTIMATE.start_main_~MAX~6) (= 5 ULTIMATE.start_main_~MAX~6))} assume !(main_~i~6 < main_~MAX~6);main_~str1~6 := main_~str1~6[main_~MAX~6 - 1 := 0];main_~j~6 := 0;main_~i~6 := main_~MAX~6 - 1; {983#(= (+ ULTIMATE.start_main_~j~6 5) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:58:07,913 INFO L273 TraceCheckUtils]: 5: Hoare triple {1004#(and (<= ULTIMATE.start_main_~i~6 4) (<= 4 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {982#(or (<= (+ ULTIMATE.start_main_~i~6 1) ULTIMATE.start_main_~MAX~6) (= 5 ULTIMATE.start_main_~MAX~6))} is VALID [2019-01-31 14:58:07,914 INFO L273 TraceCheckUtils]: 4: Hoare triple {980#(and (<= 3 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 3))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {1004#(and (<= ULTIMATE.start_main_~i~6 4) (<= 4 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:58:07,915 INFO L273 TraceCheckUtils]: 3: Hoare triple {979#(and (<= ULTIMATE.start_main_~i~6 2) (<= 2 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {980#(and (<= 3 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 3))} is VALID [2019-01-31 14:58:07,915 INFO L273 TraceCheckUtils]: 2: Hoare triple {978#(and (<= ULTIMATE.start_main_~i~6 1) (<= 1 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {979#(and (<= ULTIMATE.start_main_~i~6 2) (<= 2 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:58:07,916 INFO L273 TraceCheckUtils]: 1: Hoare triple {977#(and (<= ULTIMATE.start_main_~i~6 0) (<= 0 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {978#(and (<= ULTIMATE.start_main_~i~6 1) (<= 1 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:58:07,917 INFO L273 TraceCheckUtils]: 0: Hoare triple {975#true} havoc main_#res;havoc main_#t~nondet0, main_#t~nondet2, main_#t~post1, main_#t~post4, main_#t~post3, main_#t~post6, main_#t~post5, main_~MAX~6, main_~str1~6, main_~str2~6, main_~cont~6, main_~i~6, main_~j~6;main_~MAX~6 := (if main_#t~nondet0 % 4294967296 % 4294967296 <= 2147483647 then main_#t~nondet0 % 4294967296 % 4294967296 else main_#t~nondet0 % 4294967296 % 4294967296 - 4294967296);havoc main_#t~nondet0;havoc main_~str1~6;havoc main_~str2~6;havoc main_~cont~6;havoc main_~i~6;havoc main_~j~6;main_~cont~6 := 0;main_~i~6 := 0; {977#(and (<= ULTIMATE.start_main_~i~6 0) (<= 0 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:58:07,918 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-31 14:58:07,938 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-01-31 14:58:07,938 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 21 [2019-01-31 14:58:07,938 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-01-31 14:58:07,938 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 14 [2019-01-31 14:58:07,939 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-01-31 14:58:07,939 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 22 states. [2019-01-31 14:58:07,964 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 23 edges. 23 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-01-31 14:58:07,965 INFO L459 AbstractCegarLoop]: Interpolant automaton has 22 states [2019-01-31 14:58:07,965 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2019-01-31 14:58:07,965 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=401, Unknown=0, NotChecked=0, Total=462 [2019-01-31 14:58:07,966 INFO L87 Difference]: Start difference. First operand 15 states and 16 transitions. Second operand 22 states. [2019-01-31 14:58:09,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 14:58:09,361 INFO L93 Difference]: Finished difference Result 24 states and 26 transitions. [2019-01-31 14:58:09,361 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2019-01-31 14:58:09,361 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 14 [2019-01-31 14:58:09,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-31 14:58:09,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2019-01-31 14:58:09,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 22 transitions. [2019-01-31 14:58:09,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2019-01-31 14:58:09,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 22 transitions. [2019-01-31 14:58:09,363 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 17 states and 22 transitions. [2019-01-31 14:58:09,401 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 22 edges. 22 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-01-31 14:58:09,402 INFO L225 Difference]: With dead ends: 24 [2019-01-31 14:58:09,402 INFO L226 Difference]: Without dead ends: 16 [2019-01-31 14:58:09,403 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 16 SyntacticMatches, 3 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 108 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=130, Invalid=740, Unknown=0, NotChecked=0, Total=870 [2019-01-31 14:58:09,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2019-01-31 14:58:09,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2019-01-31 14:58:09,542 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-01-31 14:58:09,542 INFO L82 GeneralOperation]: Start isEquivalent. First operand 16 states. Second operand 16 states. [2019-01-31 14:58:09,542 INFO L74 IsIncluded]: Start isIncluded. First operand 16 states. Second operand 16 states. [2019-01-31 14:58:09,543 INFO L87 Difference]: Start difference. First operand 16 states. Second operand 16 states. [2019-01-31 14:58:09,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 14:58:09,544 INFO L93 Difference]: Finished difference Result 16 states and 17 transitions. [2019-01-31 14:58:09,544 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 17 transitions. [2019-01-31 14:58:09,545 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-31 14:58:09,545 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-01-31 14:58:09,545 INFO L74 IsIncluded]: Start isIncluded. First operand 16 states. Second operand 16 states. [2019-01-31 14:58:09,545 INFO L87 Difference]: Start difference. First operand 16 states. Second operand 16 states. [2019-01-31 14:58:09,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 14:58:09,546 INFO L93 Difference]: Finished difference Result 16 states and 17 transitions. [2019-01-31 14:58:09,546 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 17 transitions. [2019-01-31 14:58:09,547 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-31 14:58:09,547 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-01-31 14:58:09,547 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-01-31 14:58:09,547 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-01-31 14:58:09,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2019-01-31 14:58:09,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 17 transitions. [2019-01-31 14:58:09,548 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 17 transitions. Word has length 14 [2019-01-31 14:58:09,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-31 14:58:09,548 INFO L480 AbstractCegarLoop]: Abstraction has 16 states and 17 transitions. [2019-01-31 14:58:09,548 INFO L481 AbstractCegarLoop]: Interpolant automaton has 22 states. [2019-01-31 14:58:09,548 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 17 transitions. [2019-01-31 14:58:09,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-01-31 14:58:09,549 INFO L394 BasicCegarLoop]: Found error trace [2019-01-31 14:58:09,549 INFO L402 BasicCegarLoop]: trace histogram [6, 5, 1, 1, 1, 1] [2019-01-31 14:58:09,549 INFO L423 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2019-01-31 14:58:09,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-31 14:58:09,550 INFO L82 PathProgramCache]: Analyzing trace with hash -1662915732, now seen corresponding path program 8 times [2019-01-31 14:58:09,550 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-01-31 14:58:09,550 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-31 14:58:09,550 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-31 14:58:09,551 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-31 14:58:09,551 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-01-31 14:58:09,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-31 14:58:09,665 INFO L273 TraceCheckUtils]: 0: Hoare triple {1200#true} havoc main_#res;havoc main_#t~nondet0, main_#t~nondet2, main_#t~post1, main_#t~post4, main_#t~post3, main_#t~post6, main_#t~post5, main_~MAX~6, main_~str1~6, main_~str2~6, main_~cont~6, main_~i~6, main_~j~6;main_~MAX~6 := (if main_#t~nondet0 % 4294967296 % 4294967296 <= 2147483647 then main_#t~nondet0 % 4294967296 % 4294967296 else main_#t~nondet0 % 4294967296 % 4294967296 - 4294967296);havoc main_#t~nondet0;havoc main_~str1~6;havoc main_~str2~6;havoc main_~cont~6;havoc main_~i~6;havoc main_~j~6;main_~cont~6 := 0;main_~i~6 := 0; {1202#(<= 0 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:09,666 INFO L273 TraceCheckUtils]: 1: Hoare triple {1202#(<= 0 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {1203#(<= 1 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:09,667 INFO L273 TraceCheckUtils]: 2: Hoare triple {1203#(<= 1 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {1204#(<= 2 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:09,668 INFO L273 TraceCheckUtils]: 3: Hoare triple {1204#(<= 2 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {1205#(<= 3 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:09,669 INFO L273 TraceCheckUtils]: 4: Hoare triple {1205#(<= 3 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {1206#(<= 4 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:09,670 INFO L273 TraceCheckUtils]: 5: Hoare triple {1206#(<= 4 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {1207#(<= 5 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:09,671 INFO L273 TraceCheckUtils]: 6: Hoare triple {1207#(<= 5 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {1208#(<= 6 ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:58:09,672 INFO L273 TraceCheckUtils]: 7: Hoare triple {1208#(<= 6 ULTIMATE.start_main_~MAX~6)} assume !(main_~i~6 < main_~MAX~6);main_~str1~6 := main_~str1~6[main_~MAX~6 - 1 := 0];main_~j~6 := 0;main_~i~6 := main_~MAX~6 - 1; {1207#(<= 5 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:09,673 INFO L273 TraceCheckUtils]: 8: Hoare triple {1207#(<= 5 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {1206#(<= 4 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:09,674 INFO L273 TraceCheckUtils]: 9: Hoare triple {1206#(<= 4 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {1205#(<= 3 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:09,675 INFO L273 TraceCheckUtils]: 10: Hoare triple {1205#(<= 3 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {1204#(<= 2 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:09,676 INFO L273 TraceCheckUtils]: 11: Hoare triple {1204#(<= 2 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {1203#(<= 1 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:09,676 INFO L273 TraceCheckUtils]: 12: Hoare triple {1203#(<= 1 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {1202#(<= 0 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:09,677 INFO L273 TraceCheckUtils]: 13: Hoare triple {1202#(<= 0 ULTIMATE.start_main_~i~6)} assume !(main_~i~6 >= 0);main_~j~6 := main_~MAX~6 - 1;main_~i~6 := 0;assume !!(main_~i~6 < main_~MAX~6);__VERIFIER_assert_#in~cond := (if main_~str1~6[main_~i~6] == main_~str2~6[main_~j~6] then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond;assume __VERIFIER_assert_~cond == 0;assume !false; {1201#false} is VALID [2019-01-31 14:58:09,677 INFO L273 TraceCheckUtils]: 14: Hoare triple {1201#false} assume !false; {1201#false} is VALID [2019-01-31 14:58:09,678 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 15 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-31 14:58:09,678 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-31 14:58:09,679 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-01-31 14:58:09,679 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-01-31 14:58:09,679 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-01-31 14:58:09,679 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-31 14:58:09,679 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-01-31 14:58:09,690 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2019-01-31 14:58:09,690 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST2 (IT: FPandBP) [2019-01-31 14:58:09,744 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2019-01-31 14:58:09,745 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-01-31 14:58:09,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-31 14:58:09,755 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-31 14:58:09,836 INFO L273 TraceCheckUtils]: 0: Hoare triple {1200#true} havoc main_#res;havoc main_#t~nondet0, main_#t~nondet2, main_#t~post1, main_#t~post4, main_#t~post3, main_#t~post6, main_#t~post5, main_~MAX~6, main_~str1~6, main_~str2~6, main_~cont~6, main_~i~6, main_~j~6;main_~MAX~6 := (if main_#t~nondet0 % 4294967296 % 4294967296 <= 2147483647 then main_#t~nondet0 % 4294967296 % 4294967296 else main_#t~nondet0 % 4294967296 % 4294967296 - 4294967296);havoc main_#t~nondet0;havoc main_~str1~6;havoc main_~str2~6;havoc main_~cont~6;havoc main_~i~6;havoc main_~j~6;main_~cont~6 := 0;main_~i~6 := 0; {1202#(<= 0 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:09,837 INFO L273 TraceCheckUtils]: 1: Hoare triple {1202#(<= 0 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {1203#(<= 1 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:09,838 INFO L273 TraceCheckUtils]: 2: Hoare triple {1203#(<= 1 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {1204#(<= 2 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:09,838 INFO L273 TraceCheckUtils]: 3: Hoare triple {1204#(<= 2 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {1205#(<= 3 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:09,840 INFO L273 TraceCheckUtils]: 4: Hoare triple {1205#(<= 3 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {1206#(<= 4 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:09,841 INFO L273 TraceCheckUtils]: 5: Hoare triple {1206#(<= 4 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {1207#(<= 5 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:09,851 INFO L273 TraceCheckUtils]: 6: Hoare triple {1207#(<= 5 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {1208#(<= 6 ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:58:09,852 INFO L273 TraceCheckUtils]: 7: Hoare triple {1208#(<= 6 ULTIMATE.start_main_~MAX~6)} assume !(main_~i~6 < main_~MAX~6);main_~str1~6 := main_~str1~6[main_~MAX~6 - 1 := 0];main_~j~6 := 0;main_~i~6 := main_~MAX~6 - 1; {1207#(<= 5 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:09,853 INFO L273 TraceCheckUtils]: 8: Hoare triple {1207#(<= 5 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {1206#(<= 4 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:09,853 INFO L273 TraceCheckUtils]: 9: Hoare triple {1206#(<= 4 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {1205#(<= 3 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:09,854 INFO L273 TraceCheckUtils]: 10: Hoare triple {1205#(<= 3 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {1204#(<= 2 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:09,855 INFO L273 TraceCheckUtils]: 11: Hoare triple {1204#(<= 2 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {1203#(<= 1 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:09,856 INFO L273 TraceCheckUtils]: 12: Hoare triple {1203#(<= 1 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {1202#(<= 0 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:09,857 INFO L273 TraceCheckUtils]: 13: Hoare triple {1202#(<= 0 ULTIMATE.start_main_~i~6)} assume !(main_~i~6 >= 0);main_~j~6 := main_~MAX~6 - 1;main_~i~6 := 0;assume !!(main_~i~6 < main_~MAX~6);__VERIFIER_assert_#in~cond := (if main_~str1~6[main_~i~6] == main_~str2~6[main_~j~6] then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond;assume __VERIFIER_assert_~cond == 0;assume !false; {1201#false} is VALID [2019-01-31 14:58:09,857 INFO L273 TraceCheckUtils]: 14: Hoare triple {1201#false} assume !false; {1201#false} is VALID [2019-01-31 14:58:09,858 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 15 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-31 14:58:09,858 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2019-01-31 14:58:10,007 INFO L273 TraceCheckUtils]: 14: Hoare triple {1201#false} assume !false; {1201#false} is VALID [2019-01-31 14:58:10,008 INFO L273 TraceCheckUtils]: 13: Hoare triple {1202#(<= 0 ULTIMATE.start_main_~i~6)} assume !(main_~i~6 >= 0);main_~j~6 := main_~MAX~6 - 1;main_~i~6 := 0;assume !!(main_~i~6 < main_~MAX~6);__VERIFIER_assert_#in~cond := (if main_~str1~6[main_~i~6] == main_~str2~6[main_~j~6] then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond;assume __VERIFIER_assert_~cond == 0;assume !false; {1201#false} is VALID [2019-01-31 14:58:10,008 INFO L273 TraceCheckUtils]: 12: Hoare triple {1203#(<= 1 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {1202#(<= 0 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:10,009 INFO L273 TraceCheckUtils]: 11: Hoare triple {1204#(<= 2 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {1203#(<= 1 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:10,010 INFO L273 TraceCheckUtils]: 10: Hoare triple {1205#(<= 3 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {1204#(<= 2 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:10,010 INFO L273 TraceCheckUtils]: 9: Hoare triple {1206#(<= 4 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {1205#(<= 3 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:10,011 INFO L273 TraceCheckUtils]: 8: Hoare triple {1207#(<= 5 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {1206#(<= 4 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:10,013 INFO L273 TraceCheckUtils]: 7: Hoare triple {1208#(<= 6 ULTIMATE.start_main_~MAX~6)} assume !(main_~i~6 < main_~MAX~6);main_~str1~6 := main_~str1~6[main_~MAX~6 - 1 := 0];main_~j~6 := 0;main_~i~6 := main_~MAX~6 - 1; {1207#(<= 5 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:10,014 INFO L273 TraceCheckUtils]: 6: Hoare triple {1207#(<= 5 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {1208#(<= 6 ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:58:10,015 INFO L273 TraceCheckUtils]: 5: Hoare triple {1206#(<= 4 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {1207#(<= 5 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:10,016 INFO L273 TraceCheckUtils]: 4: Hoare triple {1205#(<= 3 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {1206#(<= 4 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:10,018 INFO L273 TraceCheckUtils]: 3: Hoare triple {1204#(<= 2 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {1205#(<= 3 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:10,022 INFO L273 TraceCheckUtils]: 2: Hoare triple {1203#(<= 1 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {1204#(<= 2 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:10,023 INFO L273 TraceCheckUtils]: 1: Hoare triple {1202#(<= 0 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {1203#(<= 1 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:10,024 INFO L273 TraceCheckUtils]: 0: Hoare triple {1200#true} havoc main_#res;havoc main_#t~nondet0, main_#t~nondet2, main_#t~post1, main_#t~post4, main_#t~post3, main_#t~post6, main_#t~post5, main_~MAX~6, main_~str1~6, main_~str2~6, main_~cont~6, main_~i~6, main_~j~6;main_~MAX~6 := (if main_#t~nondet0 % 4294967296 % 4294967296 <= 2147483647 then main_#t~nondet0 % 4294967296 % 4294967296 else main_#t~nondet0 % 4294967296 % 4294967296 - 4294967296);havoc main_#t~nondet0;havoc main_~str1~6;havoc main_~str2~6;havoc main_~cont~6;havoc main_~i~6;havoc main_~j~6;main_~cont~6 := 0;main_~i~6 := 0; {1202#(<= 0 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:10,024 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 15 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-31 14:58:10,043 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-01-31 14:58:10,043 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 8 [2019-01-31 14:58:10,043 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-01-31 14:58:10,044 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 15 [2019-01-31 14:58:10,044 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-01-31 14:58:10,044 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 9 states. [2019-01-31 14:58:10,066 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 15 edges. 15 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-01-31 14:58:10,066 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-01-31 14:58:10,066 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-01-31 14:58:10,067 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2019-01-31 14:58:10,067 INFO L87 Difference]: Start difference. First operand 16 states and 17 transitions. Second operand 9 states. [2019-01-31 14:58:10,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 14:58:10,375 INFO L93 Difference]: Finished difference Result 19 states and 20 transitions. [2019-01-31 14:58:10,376 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-01-31 14:58:10,376 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 15 [2019-01-31 14:58:10,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-31 14:58:10,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2019-01-31 14:58:10,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 20 transitions. [2019-01-31 14:58:10,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2019-01-31 14:58:10,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 20 transitions. [2019-01-31 14:58:10,379 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 15 states and 20 transitions. [2019-01-31 14:58:10,413 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 20 edges. 20 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-01-31 14:58:10,413 INFO L225 Difference]: With dead ends: 19 [2019-01-31 14:58:10,414 INFO L226 Difference]: Without dead ends: 17 [2019-01-31 14:58:10,414 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 23 SyntacticMatches, 12 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=84, Invalid=126, Unknown=0, NotChecked=0, Total=210 [2019-01-31 14:58:10,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2019-01-31 14:58:10,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2019-01-31 14:58:10,537 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-01-31 14:58:10,537 INFO L82 GeneralOperation]: Start isEquivalent. First operand 17 states. Second operand 17 states. [2019-01-31 14:58:10,537 INFO L74 IsIncluded]: Start isIncluded. First operand 17 states. Second operand 17 states. [2019-01-31 14:58:10,537 INFO L87 Difference]: Start difference. First operand 17 states. Second operand 17 states. [2019-01-31 14:58:10,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 14:58:10,538 INFO L93 Difference]: Finished difference Result 17 states and 18 transitions. [2019-01-31 14:58:10,539 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 18 transitions. [2019-01-31 14:58:10,539 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-31 14:58:10,539 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-01-31 14:58:10,539 INFO L74 IsIncluded]: Start isIncluded. First operand 17 states. Second operand 17 states. [2019-01-31 14:58:10,540 INFO L87 Difference]: Start difference. First operand 17 states. Second operand 17 states. [2019-01-31 14:58:10,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 14:58:10,541 INFO L93 Difference]: Finished difference Result 17 states and 18 transitions. [2019-01-31 14:58:10,541 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 18 transitions. [2019-01-31 14:58:10,541 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-31 14:58:10,541 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-01-31 14:58:10,541 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-01-31 14:58:10,541 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-01-31 14:58:10,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2019-01-31 14:58:10,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 18 transitions. [2019-01-31 14:58:10,542 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 18 transitions. Word has length 15 [2019-01-31 14:58:10,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-31 14:58:10,542 INFO L480 AbstractCegarLoop]: Abstraction has 17 states and 18 transitions. [2019-01-31 14:58:10,542 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-01-31 14:58:10,543 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 18 transitions. [2019-01-31 14:58:10,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-01-31 14:58:10,543 INFO L394 BasicCegarLoop]: Found error trace [2019-01-31 14:58:10,543 INFO L402 BasicCegarLoop]: trace histogram [6, 6, 1, 1, 1, 1] [2019-01-31 14:58:10,543 INFO L423 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2019-01-31 14:58:10,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-31 14:58:10,544 INFO L82 PathProgramCache]: Analyzing trace with hash -10778326, now seen corresponding path program 9 times [2019-01-31 14:58:10,544 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-01-31 14:58:10,545 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-31 14:58:10,545 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-01-31 14:58:10,545 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-31 14:58:10,545 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-01-31 14:58:10,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-31 14:58:10,931 INFO L273 TraceCheckUtils]: 0: Hoare triple {1408#true} havoc main_#res;havoc main_#t~nondet0, main_#t~nondet2, main_#t~post1, main_#t~post4, main_#t~post3, main_#t~post6, main_#t~post5, main_~MAX~6, main_~str1~6, main_~str2~6, main_~cont~6, main_~i~6, main_~j~6;main_~MAX~6 := (if main_#t~nondet0 % 4294967296 % 4294967296 <= 2147483647 then main_#t~nondet0 % 4294967296 % 4294967296 else main_#t~nondet0 % 4294967296 % 4294967296 - 4294967296);havoc main_#t~nondet0;havoc main_~str1~6;havoc main_~str2~6;havoc main_~cont~6;havoc main_~i~6;havoc main_~j~6;main_~cont~6 := 0;main_~i~6 := 0; {1410#(and (<= ULTIMATE.start_main_~i~6 0) (<= 0 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:58:10,932 INFO L273 TraceCheckUtils]: 1: Hoare triple {1410#(and (<= ULTIMATE.start_main_~i~6 0) (<= 0 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {1411#(and (<= ULTIMATE.start_main_~i~6 1) (<= 1 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:58:10,933 INFO L273 TraceCheckUtils]: 2: Hoare triple {1411#(and (<= ULTIMATE.start_main_~i~6 1) (<= 1 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {1412#(and (<= ULTIMATE.start_main_~i~6 2) (<= 2 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:58:10,934 INFO L273 TraceCheckUtils]: 3: Hoare triple {1412#(and (<= ULTIMATE.start_main_~i~6 2) (<= 2 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {1413#(and (<= 3 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 3))} is VALID [2019-01-31 14:58:10,935 INFO L273 TraceCheckUtils]: 4: Hoare triple {1413#(and (<= 3 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 3))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {1414#(and (<= ULTIMATE.start_main_~i~6 4) (<= 4 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:58:10,936 INFO L273 TraceCheckUtils]: 5: Hoare triple {1414#(and (<= ULTIMATE.start_main_~i~6 4) (<= 4 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {1415#(or (not (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 1))) (and (<= 5 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 5)))} is VALID [2019-01-31 14:58:10,938 INFO L273 TraceCheckUtils]: 6: Hoare triple {1415#(or (not (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 1))) (and (<= 5 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 5)))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {1416#(or (= 6 ULTIMATE.start_main_~MAX~6) (<= (+ ULTIMATE.start_main_~i~6 1) ULTIMATE.start_main_~MAX~6))} is VALID [2019-01-31 14:58:10,939 INFO L273 TraceCheckUtils]: 7: Hoare triple {1416#(or (= 6 ULTIMATE.start_main_~MAX~6) (<= (+ ULTIMATE.start_main_~i~6 1) ULTIMATE.start_main_~MAX~6))} assume !(main_~i~6 < main_~MAX~6);main_~str1~6 := main_~str1~6[main_~MAX~6 - 1 := 0];main_~j~6 := 0;main_~i~6 := main_~MAX~6 - 1; {1417#(= (+ ULTIMATE.start_main_~j~6 6) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:58:10,940 INFO L273 TraceCheckUtils]: 8: Hoare triple {1417#(= (+ ULTIMATE.start_main_~j~6 6) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {1418#(= (+ ULTIMATE.start_main_~j~6 5) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:58:10,941 INFO L273 TraceCheckUtils]: 9: Hoare triple {1418#(= (+ ULTIMATE.start_main_~j~6 5) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {1419#(= (+ ULTIMATE.start_main_~j~6 4) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:58:10,942 INFO L273 TraceCheckUtils]: 10: Hoare triple {1419#(= (+ ULTIMATE.start_main_~j~6 4) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {1420#(= (+ ULTIMATE.start_main_~j~6 3) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:58:10,943 INFO L273 TraceCheckUtils]: 11: Hoare triple {1420#(= (+ ULTIMATE.start_main_~j~6 3) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {1421#(= (+ ULTIMATE.start_main_~j~6 2) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:58:10,944 INFO L273 TraceCheckUtils]: 12: Hoare triple {1421#(= (+ ULTIMATE.start_main_~j~6 2) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {1422#(= (+ ULTIMATE.start_main_~j~6 1) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:58:10,945 INFO L273 TraceCheckUtils]: 13: Hoare triple {1422#(= (+ ULTIMATE.start_main_~j~6 1) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {1423#(= (select ULTIMATE.start_main_~str1~6 0) (select ULTIMATE.start_main_~str2~6 (+ ULTIMATE.start_main_~MAX~6 (- 1))))} is VALID [2019-01-31 14:58:10,946 INFO L273 TraceCheckUtils]: 14: Hoare triple {1423#(= (select ULTIMATE.start_main_~str1~6 0) (select ULTIMATE.start_main_~str2~6 (+ ULTIMATE.start_main_~MAX~6 (- 1))))} assume !(main_~i~6 >= 0);main_~j~6 := main_~MAX~6 - 1;main_~i~6 := 0;assume !!(main_~i~6 < main_~MAX~6);__VERIFIER_assert_#in~cond := (if main_~str1~6[main_~i~6] == main_~str2~6[main_~j~6] then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond;assume __VERIFIER_assert_~cond == 0;assume !false; {1409#false} is VALID [2019-01-31 14:58:10,946 INFO L273 TraceCheckUtils]: 15: Hoare triple {1409#false} assume !false; {1409#false} is VALID [2019-01-31 14:58:10,947 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-31 14:58:10,948 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-31 14:58:10,948 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-01-31 14:58:10,948 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-01-31 14:58:10,948 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-01-31 14:58:10,948 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-31 14:58:10,948 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-01-31 14:58:10,957 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2019-01-31 14:58:10,957 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder TERMS_WITH_SMALL_CONSTANTS_FIRST (IT: FPandBP) [2019-01-31 14:58:10,969 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-01-31 14:58:10,969 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-01-31 14:58:10,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-31 14:58:10,979 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-31 14:58:11,161 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2019-01-31 14:58:11,163 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-01-31 14:58:11,170 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-31 14:58:11,170 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:17, output treesize:16 [2019-01-31 14:58:11,173 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-01-31 14:58:11,173 WARN L398 uantifierElimination]: Input elimination task: ∃ [v_ULTIMATE.start_main_~str2~6_36]. (and (<= 6 ULTIMATE.start_main_~MAX~6) (= (store v_ULTIMATE.start_main_~str2~6_36 5 (select ULTIMATE.start_main_~str1~6 0)) ULTIMATE.start_main_~str2~6) (<= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 7))) [2019-01-31 14:58:11,173 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (and (<= 6 ULTIMATE.start_main_~MAX~6) (= (select ULTIMATE.start_main_~str2~6 5) (select ULTIMATE.start_main_~str1~6 0)) (<= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 7))) [2019-01-31 14:58:11,215 INFO L273 TraceCheckUtils]: 0: Hoare triple {1408#true} havoc main_#res;havoc main_#t~nondet0, main_#t~nondet2, main_#t~post1, main_#t~post4, main_#t~post3, main_#t~post6, main_#t~post5, main_~MAX~6, main_~str1~6, main_~str2~6, main_~cont~6, main_~i~6, main_~j~6;main_~MAX~6 := (if main_#t~nondet0 % 4294967296 % 4294967296 <= 2147483647 then main_#t~nondet0 % 4294967296 % 4294967296 else main_#t~nondet0 % 4294967296 % 4294967296 - 4294967296);havoc main_#t~nondet0;havoc main_~str1~6;havoc main_~str2~6;havoc main_~cont~6;havoc main_~i~6;havoc main_~j~6;main_~cont~6 := 0;main_~i~6 := 0; {1408#true} is VALID [2019-01-31 14:58:11,215 INFO L273 TraceCheckUtils]: 1: Hoare triple {1408#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {1408#true} is VALID [2019-01-31 14:58:11,215 INFO L273 TraceCheckUtils]: 2: Hoare triple {1408#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {1408#true} is VALID [2019-01-31 14:58:11,215 INFO L273 TraceCheckUtils]: 3: Hoare triple {1408#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {1408#true} is VALID [2019-01-31 14:58:11,216 INFO L273 TraceCheckUtils]: 4: Hoare triple {1408#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {1408#true} is VALID [2019-01-31 14:58:11,216 INFO L273 TraceCheckUtils]: 5: Hoare triple {1408#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {1408#true} is VALID [2019-01-31 14:58:11,216 INFO L273 TraceCheckUtils]: 6: Hoare triple {1408#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {1408#true} is VALID [2019-01-31 14:58:11,216 INFO L273 TraceCheckUtils]: 7: Hoare triple {1408#true} assume !(main_~i~6 < main_~MAX~6);main_~str1~6 := main_~str1~6[main_~MAX~6 - 1 := 0];main_~j~6 := 0;main_~i~6 := main_~MAX~6 - 1; {1448#(and (= ULTIMATE.start_main_~j~6 0) (= (+ ULTIMATE.start_main_~i~6 1) ULTIMATE.start_main_~MAX~6))} is VALID [2019-01-31 14:58:11,217 INFO L273 TraceCheckUtils]: 8: Hoare triple {1448#(and (= ULTIMATE.start_main_~j~6 0) (= (+ ULTIMATE.start_main_~i~6 1) ULTIMATE.start_main_~MAX~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {1452#(and (= ULTIMATE.start_main_~j~6 1) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 2)))} is VALID [2019-01-31 14:58:11,224 INFO L273 TraceCheckUtils]: 9: Hoare triple {1452#(and (= ULTIMATE.start_main_~j~6 1) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 2)))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {1456#(and (= (+ ULTIMATE.start_main_~i~6 3) ULTIMATE.start_main_~MAX~6) (= ULTIMATE.start_main_~j~6 2))} is VALID [2019-01-31 14:58:11,225 INFO L273 TraceCheckUtils]: 10: Hoare triple {1456#(and (= (+ ULTIMATE.start_main_~i~6 3) ULTIMATE.start_main_~MAX~6) (= ULTIMATE.start_main_~j~6 2))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {1460#(and (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 4)) (= ULTIMATE.start_main_~j~6 3))} is VALID [2019-01-31 14:58:11,225 INFO L273 TraceCheckUtils]: 11: Hoare triple {1460#(and (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 4)) (= ULTIMATE.start_main_~j~6 3))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {1464#(and (= ULTIMATE.start_main_~j~6 4) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 5)))} is VALID [2019-01-31 14:58:11,226 INFO L273 TraceCheckUtils]: 12: Hoare triple {1464#(and (= ULTIMATE.start_main_~j~6 4) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 5)))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {1468#(and (= ULTIMATE.start_main_~j~6 5) (= (+ ULTIMATE.start_main_~i~6 6) ULTIMATE.start_main_~MAX~6))} is VALID [2019-01-31 14:58:11,227 INFO L273 TraceCheckUtils]: 13: Hoare triple {1468#(and (= ULTIMATE.start_main_~j~6 5) (= (+ ULTIMATE.start_main_~i~6 6) ULTIMATE.start_main_~MAX~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {1472#(and (= (select ULTIMATE.start_main_~str2~6 5) (select ULTIMATE.start_main_~str1~6 0)) (<= 6 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 7)))} is VALID [2019-01-31 14:58:11,228 INFO L273 TraceCheckUtils]: 14: Hoare triple {1472#(and (= (select ULTIMATE.start_main_~str2~6 5) (select ULTIMATE.start_main_~str1~6 0)) (<= 6 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 7)))} assume !(main_~i~6 >= 0);main_~j~6 := main_~MAX~6 - 1;main_~i~6 := 0;assume !!(main_~i~6 < main_~MAX~6);__VERIFIER_assert_#in~cond := (if main_~str1~6[main_~i~6] == main_~str2~6[main_~j~6] then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond;assume __VERIFIER_assert_~cond == 0;assume !false; {1409#false} is VALID [2019-01-31 14:58:11,228 INFO L273 TraceCheckUtils]: 15: Hoare triple {1409#false} assume !false; {1409#false} is VALID [2019-01-31 14:58:11,229 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2019-01-31 14:58:11,229 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2019-01-31 14:58:11,335 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 5 [2019-01-31 14:58:11,337 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-01-31 14:58:11,348 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-31 14:58:11,349 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:22, output treesize:12 [2019-01-31 14:58:11,351 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-01-31 14:58:11,351 WARN L398 uantifierElimination]: Input elimination task: ∀ [ULTIMATE.start_main_~str2~6, ULTIMATE.start_main_~str1~6]. (or (not (<= 0 ULTIMATE.start_main_~i~6)) (let ((.cse0 (select ULTIMATE.start_main_~str1~6 0))) (= .cse0 (select (store ULTIMATE.start_main_~str2~6 ULTIMATE.start_main_~j~6 .cse0) (+ ULTIMATE.start_main_~MAX~6 (- 1))))) (< 0 ULTIMATE.start_main_~i~6)) [2019-01-31 14:58:11,351 WARN L399 uantifierElimination]: ElimStorePlain result: ∀ []. (or (< ULTIMATE.start_main_~i~6 0) (< 0 ULTIMATE.start_main_~i~6) (= (+ ULTIMATE.start_main_~j~6 1) ULTIMATE.start_main_~MAX~6)) [2019-01-31 14:58:11,600 INFO L273 TraceCheckUtils]: 15: Hoare triple {1409#false} assume !false; {1409#false} is VALID [2019-01-31 14:58:11,602 INFO L273 TraceCheckUtils]: 14: Hoare triple {1482#(or (= (select ULTIMATE.start_main_~str1~6 0) (select ULTIMATE.start_main_~str2~6 (+ ULTIMATE.start_main_~MAX~6 (- 1)))) (<= 0 ULTIMATE.start_main_~i~6))} assume !(main_~i~6 >= 0);main_~j~6 := main_~MAX~6 - 1;main_~i~6 := 0;assume !!(main_~i~6 < main_~MAX~6);__VERIFIER_assert_#in~cond := (if main_~str1~6[main_~i~6] == main_~str2~6[main_~j~6] then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond;assume __VERIFIER_assert_~cond == 0;assume !false; {1409#false} is VALID [2019-01-31 14:58:11,603 INFO L273 TraceCheckUtils]: 13: Hoare triple {1486#(or (< ULTIMATE.start_main_~i~6 0) (< 0 ULTIMATE.start_main_~i~6) (= (+ ULTIMATE.start_main_~j~6 1) ULTIMATE.start_main_~MAX~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {1482#(or (= (select ULTIMATE.start_main_~str1~6 0) (select ULTIMATE.start_main_~str2~6 (+ ULTIMATE.start_main_~MAX~6 (- 1)))) (<= 0 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:58:11,604 INFO L273 TraceCheckUtils]: 12: Hoare triple {1490#(or (= (+ ULTIMATE.start_main_~j~6 2) ULTIMATE.start_main_~MAX~6) (< 1 ULTIMATE.start_main_~i~6) (< ULTIMATE.start_main_~i~6 1))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {1486#(or (< ULTIMATE.start_main_~i~6 0) (< 0 ULTIMATE.start_main_~i~6) (= (+ ULTIMATE.start_main_~j~6 1) ULTIMATE.start_main_~MAX~6))} is VALID [2019-01-31 14:58:11,605 INFO L273 TraceCheckUtils]: 11: Hoare triple {1494#(or (= (+ ULTIMATE.start_main_~j~6 3) ULTIMATE.start_main_~MAX~6) (< ULTIMATE.start_main_~i~6 2) (< 2 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {1490#(or (= (+ ULTIMATE.start_main_~j~6 2) ULTIMATE.start_main_~MAX~6) (< 1 ULTIMATE.start_main_~i~6) (< ULTIMATE.start_main_~i~6 1))} is VALID [2019-01-31 14:58:11,606 INFO L273 TraceCheckUtils]: 10: Hoare triple {1498#(or (= (+ ULTIMATE.start_main_~j~6 4) ULTIMATE.start_main_~MAX~6) (< ULTIMATE.start_main_~i~6 3) (< 3 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {1494#(or (= (+ ULTIMATE.start_main_~j~6 3) ULTIMATE.start_main_~MAX~6) (< ULTIMATE.start_main_~i~6 2) (< 2 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:58:11,607 INFO L273 TraceCheckUtils]: 9: Hoare triple {1502#(or (= (+ ULTIMATE.start_main_~j~6 5) ULTIMATE.start_main_~MAX~6) (< 4 ULTIMATE.start_main_~i~6) (< ULTIMATE.start_main_~i~6 4))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {1498#(or (= (+ ULTIMATE.start_main_~j~6 4) ULTIMATE.start_main_~MAX~6) (< ULTIMATE.start_main_~i~6 3) (< 3 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:58:11,609 INFO L273 TraceCheckUtils]: 8: Hoare triple {1506#(or (< ULTIMATE.start_main_~i~6 5) (< 5 ULTIMATE.start_main_~i~6) (= (+ ULTIMATE.start_main_~j~6 6) ULTIMATE.start_main_~MAX~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {1502#(or (= (+ ULTIMATE.start_main_~j~6 5) ULTIMATE.start_main_~MAX~6) (< 4 ULTIMATE.start_main_~i~6) (< ULTIMATE.start_main_~i~6 4))} is VALID [2019-01-31 14:58:11,610 INFO L273 TraceCheckUtils]: 7: Hoare triple {1408#true} assume !(main_~i~6 < main_~MAX~6);main_~str1~6 := main_~str1~6[main_~MAX~6 - 1 := 0];main_~j~6 := 0;main_~i~6 := main_~MAX~6 - 1; {1506#(or (< ULTIMATE.start_main_~i~6 5) (< 5 ULTIMATE.start_main_~i~6) (= (+ ULTIMATE.start_main_~j~6 6) ULTIMATE.start_main_~MAX~6))} is VALID [2019-01-31 14:58:11,610 INFO L273 TraceCheckUtils]: 6: Hoare triple {1408#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {1408#true} is VALID [2019-01-31 14:58:11,610 INFO L273 TraceCheckUtils]: 5: Hoare triple {1408#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {1408#true} is VALID [2019-01-31 14:58:11,610 INFO L273 TraceCheckUtils]: 4: Hoare triple {1408#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {1408#true} is VALID [2019-01-31 14:58:11,611 INFO L273 TraceCheckUtils]: 3: Hoare triple {1408#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {1408#true} is VALID [2019-01-31 14:58:11,611 INFO L273 TraceCheckUtils]: 2: Hoare triple {1408#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {1408#true} is VALID [2019-01-31 14:58:11,611 INFO L273 TraceCheckUtils]: 1: Hoare triple {1408#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {1408#true} is VALID [2019-01-31 14:58:11,611 INFO L273 TraceCheckUtils]: 0: Hoare triple {1408#true} havoc main_#res;havoc main_#t~nondet0, main_#t~nondet2, main_#t~post1, main_#t~post4, main_#t~post3, main_#t~post6, main_#t~post5, main_~MAX~6, main_~str1~6, main_~str2~6, main_~cont~6, main_~i~6, main_~j~6;main_~MAX~6 := (if main_#t~nondet0 % 4294967296 % 4294967296 <= 2147483647 then main_#t~nondet0 % 4294967296 % 4294967296 else main_#t~nondet0 % 4294967296 % 4294967296 - 4294967296);havoc main_#t~nondet0;havoc main_~str1~6;havoc main_~str2~6;havoc main_~cont~6;havoc main_~i~6;havoc main_~j~6;main_~cont~6 := 0;main_~i~6 := 0; {1408#true} is VALID [2019-01-31 14:58:11,612 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2019-01-31 14:58:11,630 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-01-31 14:58:11,631 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 9, 9] total 30 [2019-01-31 14:58:11,631 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-01-31 14:58:11,631 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 16 [2019-01-31 14:58:11,632 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-01-31 14:58:11,632 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 23 states. [2019-01-31 14:58:11,656 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 26 edges. 26 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-01-31 14:58:11,656 INFO L459 AbstractCegarLoop]: Interpolant automaton has 23 states [2019-01-31 14:58:11,656 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2019-01-31 14:58:11,657 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=142, Invalid=728, Unknown=0, NotChecked=0, Total=870 [2019-01-31 14:58:11,657 INFO L87 Difference]: Start difference. First operand 17 states and 18 transitions. Second operand 23 states. [2019-01-31 14:58:13,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 14:58:13,331 INFO L93 Difference]: Finished difference Result 29 states and 33 transitions. [2019-01-31 14:58:13,331 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2019-01-31 14:58:13,331 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 16 [2019-01-31 14:58:13,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-31 14:58:13,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2019-01-31 14:58:13,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 33 transitions. [2019-01-31 14:58:13,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2019-01-31 14:58:13,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 33 transitions. [2019-01-31 14:58:13,333 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 26 states and 33 transitions. [2019-01-31 14:58:13,371 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 33 edges. 33 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-01-31 14:58:13,372 INFO L225 Difference]: With dead ends: 29 [2019-01-31 14:58:13,372 INFO L226 Difference]: Without dead ends: 19 [2019-01-31 14:58:13,373 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 134 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=277, Invalid=1363, Unknown=0, NotChecked=0, Total=1640 [2019-01-31 14:58:13,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2019-01-31 14:58:13,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2019-01-31 14:58:13,508 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-01-31 14:58:13,508 INFO L82 GeneralOperation]: Start isEquivalent. First operand 19 states. Second operand 19 states. [2019-01-31 14:58:13,508 INFO L74 IsIncluded]: Start isIncluded. First operand 19 states. Second operand 19 states. [2019-01-31 14:58:13,508 INFO L87 Difference]: Start difference. First operand 19 states. Second operand 19 states. [2019-01-31 14:58:13,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 14:58:13,510 INFO L93 Difference]: Finished difference Result 19 states and 20 transitions. [2019-01-31 14:58:13,510 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 20 transitions. [2019-01-31 14:58:13,511 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-31 14:58:13,511 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-01-31 14:58:13,511 INFO L74 IsIncluded]: Start isIncluded. First operand 19 states. Second operand 19 states. [2019-01-31 14:58:13,511 INFO L87 Difference]: Start difference. First operand 19 states. Second operand 19 states. [2019-01-31 14:58:13,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 14:58:13,512 INFO L93 Difference]: Finished difference Result 19 states and 20 transitions. [2019-01-31 14:58:13,512 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 20 transitions. [2019-01-31 14:58:13,512 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-31 14:58:13,513 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-01-31 14:58:13,513 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-01-31 14:58:13,513 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-01-31 14:58:13,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2019-01-31 14:58:13,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 20 transitions. [2019-01-31 14:58:13,514 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 20 transitions. Word has length 16 [2019-01-31 14:58:13,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-31 14:58:13,514 INFO L480 AbstractCegarLoop]: Abstraction has 19 states and 20 transitions. [2019-01-31 14:58:13,514 INFO L481 AbstractCegarLoop]: Interpolant automaton has 23 states. [2019-01-31 14:58:13,514 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 20 transitions. [2019-01-31 14:58:13,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-01-31 14:58:13,515 INFO L394 BasicCegarLoop]: Found error trace [2019-01-31 14:58:13,515 INFO L402 BasicCegarLoop]: trace histogram [7, 7, 1, 1, 1, 1] [2019-01-31 14:58:13,515 INFO L423 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2019-01-31 14:58:13,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-31 14:58:13,515 INFO L82 PathProgramCache]: Analyzing trace with hash 701707477, now seen corresponding path program 10 times [2019-01-31 14:58:13,515 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-01-31 14:58:13,516 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-31 14:58:13,516 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-01-31 14:58:13,516 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-31 14:58:13,517 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-01-31 14:58:13,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-31 14:58:13,897 INFO L273 TraceCheckUtils]: 0: Hoare triple {1681#true} havoc main_#res;havoc main_#t~nondet0, main_#t~nondet2, main_#t~post1, main_#t~post4, main_#t~post3, main_#t~post6, main_#t~post5, main_~MAX~6, main_~str1~6, main_~str2~6, main_~cont~6, main_~i~6, main_~j~6;main_~MAX~6 := (if main_#t~nondet0 % 4294967296 % 4294967296 <= 2147483647 then main_#t~nondet0 % 4294967296 % 4294967296 else main_#t~nondet0 % 4294967296 % 4294967296 - 4294967296);havoc main_#t~nondet0;havoc main_~str1~6;havoc main_~str2~6;havoc main_~cont~6;havoc main_~i~6;havoc main_~j~6;main_~cont~6 := 0;main_~i~6 := 0; {1683#(and (<= ULTIMATE.start_main_~i~6 0) (<= 0 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:58:13,898 INFO L273 TraceCheckUtils]: 1: Hoare triple {1683#(and (<= ULTIMATE.start_main_~i~6 0) (<= 0 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {1684#(and (<= ULTIMATE.start_main_~i~6 1) (<= 1 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:58:13,901 INFO L273 TraceCheckUtils]: 2: Hoare triple {1684#(and (<= ULTIMATE.start_main_~i~6 1) (<= 1 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {1685#(and (<= ULTIMATE.start_main_~i~6 2) (<= 2 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:58:13,902 INFO L273 TraceCheckUtils]: 3: Hoare triple {1685#(and (<= ULTIMATE.start_main_~i~6 2) (<= 2 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {1686#(and (<= 3 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 3))} is VALID [2019-01-31 14:58:13,903 INFO L273 TraceCheckUtils]: 4: Hoare triple {1686#(and (<= 3 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 3))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {1687#(and (<= ULTIMATE.start_main_~i~6 4) (<= 4 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:58:13,903 INFO L273 TraceCheckUtils]: 5: Hoare triple {1687#(and (<= ULTIMATE.start_main_~i~6 4) (<= 4 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {1688#(and (<= 5 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 5))} is VALID [2019-01-31 14:58:13,904 INFO L273 TraceCheckUtils]: 6: Hoare triple {1688#(and (<= 5 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 5))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {1689#(or (not (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 1))) (and (<= ULTIMATE.start_main_~i~6 6) (<= 6 ULTIMATE.start_main_~i~6)))} is VALID [2019-01-31 14:58:13,905 INFO L273 TraceCheckUtils]: 7: Hoare triple {1689#(or (not (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 1))) (and (<= ULTIMATE.start_main_~i~6 6) (<= 6 ULTIMATE.start_main_~i~6)))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {1690#(or (<= (+ ULTIMATE.start_main_~i~6 1) ULTIMATE.start_main_~MAX~6) (= 7 ULTIMATE.start_main_~MAX~6))} is VALID [2019-01-31 14:58:13,906 INFO L273 TraceCheckUtils]: 8: Hoare triple {1690#(or (<= (+ ULTIMATE.start_main_~i~6 1) ULTIMATE.start_main_~MAX~6) (= 7 ULTIMATE.start_main_~MAX~6))} assume !(main_~i~6 < main_~MAX~6);main_~str1~6 := main_~str1~6[main_~MAX~6 - 1 := 0];main_~j~6 := 0;main_~i~6 := main_~MAX~6 - 1; {1691#(= (+ ULTIMATE.start_main_~j~6 7) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:58:13,907 INFO L273 TraceCheckUtils]: 9: Hoare triple {1691#(= (+ ULTIMATE.start_main_~j~6 7) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {1692#(= (+ ULTIMATE.start_main_~j~6 6) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:58:13,908 INFO L273 TraceCheckUtils]: 10: Hoare triple {1692#(= (+ ULTIMATE.start_main_~j~6 6) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {1693#(= (+ ULTIMATE.start_main_~j~6 5) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:58:13,909 INFO L273 TraceCheckUtils]: 11: Hoare triple {1693#(= (+ ULTIMATE.start_main_~j~6 5) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {1694#(= (+ ULTIMATE.start_main_~j~6 4) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:58:13,910 INFO L273 TraceCheckUtils]: 12: Hoare triple {1694#(= (+ ULTIMATE.start_main_~j~6 4) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {1695#(= (+ ULTIMATE.start_main_~j~6 3) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:58:13,911 INFO L273 TraceCheckUtils]: 13: Hoare triple {1695#(= (+ ULTIMATE.start_main_~j~6 3) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {1696#(= (+ ULTIMATE.start_main_~j~6 2) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:58:13,912 INFO L273 TraceCheckUtils]: 14: Hoare triple {1696#(= (+ ULTIMATE.start_main_~j~6 2) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {1697#(= (+ ULTIMATE.start_main_~j~6 1) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:58:13,913 INFO L273 TraceCheckUtils]: 15: Hoare triple {1697#(= (+ ULTIMATE.start_main_~j~6 1) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {1698#(= (select ULTIMATE.start_main_~str1~6 0) (select ULTIMATE.start_main_~str2~6 (+ ULTIMATE.start_main_~MAX~6 (- 1))))} is VALID [2019-01-31 14:58:13,914 INFO L273 TraceCheckUtils]: 16: Hoare triple {1698#(= (select ULTIMATE.start_main_~str1~6 0) (select ULTIMATE.start_main_~str2~6 (+ ULTIMATE.start_main_~MAX~6 (- 1))))} assume !(main_~i~6 >= 0);main_~j~6 := main_~MAX~6 - 1;main_~i~6 := 0;assume !!(main_~i~6 < main_~MAX~6);__VERIFIER_assert_#in~cond := (if main_~str1~6[main_~i~6] == main_~str2~6[main_~j~6] then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond;assume __VERIFIER_assert_~cond == 0;assume !false; {1682#false} is VALID [2019-01-31 14:58:13,915 INFO L273 TraceCheckUtils]: 17: Hoare triple {1682#false} assume !false; {1682#false} is VALID [2019-01-31 14:58:13,916 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-31 14:58:13,916 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-31 14:58:13,916 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-01-31 14:58:13,916 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-01-31 14:58:13,917 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-01-31 14:58:13,917 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-31 14:58:13,917 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-01-31 14:58:13,925 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-31 14:58:13,926 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2019-01-31 14:58:13,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-31 14:58:13,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-31 14:58:13,954 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-31 14:58:14,510 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2019-01-31 14:58:14,512 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-01-31 14:58:14,518 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-31 14:58:14,518 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:15, output treesize:14 [2019-01-31 14:58:14,521 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-01-31 14:58:14,521 WARN L398 uantifierElimination]: Input elimination task: ∃ [v_ULTIMATE.start_main_~str2~6_43]. (and (<= ULTIMATE.start_main_~MAX~6 7) (= ULTIMATE.start_main_~str2~6 (store v_ULTIMATE.start_main_~str2~6_43 6 (select ULTIMATE.start_main_~str1~6 0))) (<= 7 ULTIMATE.start_main_~MAX~6)) [2019-01-31 14:58:14,521 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= (select ULTIMATE.start_main_~str2~6 6) (select ULTIMATE.start_main_~str1~6 0)) (<= ULTIMATE.start_main_~MAX~6 7) (<= 7 ULTIMATE.start_main_~MAX~6)) [2019-01-31 14:58:14,579 INFO L273 TraceCheckUtils]: 0: Hoare triple {1681#true} havoc main_#res;havoc main_#t~nondet0, main_#t~nondet2, main_#t~post1, main_#t~post4, main_#t~post3, main_#t~post6, main_#t~post5, main_~MAX~6, main_~str1~6, main_~str2~6, main_~cont~6, main_~i~6, main_~j~6;main_~MAX~6 := (if main_#t~nondet0 % 4294967296 % 4294967296 <= 2147483647 then main_#t~nondet0 % 4294967296 % 4294967296 else main_#t~nondet0 % 4294967296 % 4294967296 - 4294967296);havoc main_#t~nondet0;havoc main_~str1~6;havoc main_~str2~6;havoc main_~cont~6;havoc main_~i~6;havoc main_~j~6;main_~cont~6 := 0;main_~i~6 := 0; {1683#(and (<= ULTIMATE.start_main_~i~6 0) (<= 0 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:58:14,579 INFO L273 TraceCheckUtils]: 1: Hoare triple {1683#(and (<= ULTIMATE.start_main_~i~6 0) (<= 0 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {1684#(and (<= ULTIMATE.start_main_~i~6 1) (<= 1 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:58:14,581 INFO L273 TraceCheckUtils]: 2: Hoare triple {1684#(and (<= ULTIMATE.start_main_~i~6 1) (<= 1 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {1685#(and (<= ULTIMATE.start_main_~i~6 2) (<= 2 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:58:14,583 INFO L273 TraceCheckUtils]: 3: Hoare triple {1685#(and (<= ULTIMATE.start_main_~i~6 2) (<= 2 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {1686#(and (<= 3 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 3))} is VALID [2019-01-31 14:58:14,584 INFO L273 TraceCheckUtils]: 4: Hoare triple {1686#(and (<= 3 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 3))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {1687#(and (<= ULTIMATE.start_main_~i~6 4) (<= 4 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:58:14,601 INFO L273 TraceCheckUtils]: 5: Hoare triple {1687#(and (<= ULTIMATE.start_main_~i~6 4) (<= 4 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {1688#(and (<= 5 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 5))} is VALID [2019-01-31 14:58:14,615 INFO L273 TraceCheckUtils]: 6: Hoare triple {1688#(and (<= 5 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 5))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {1720#(and (<= ULTIMATE.start_main_~i~6 6) (<= 6 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:58:14,616 INFO L273 TraceCheckUtils]: 7: Hoare triple {1720#(and (<= ULTIMATE.start_main_~i~6 6) (<= 6 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {1724#(and (<= ULTIMATE.start_main_~i~6 7) (<= 7 ULTIMATE.start_main_~MAX~6))} is VALID [2019-01-31 14:58:14,616 INFO L273 TraceCheckUtils]: 8: Hoare triple {1724#(and (<= ULTIMATE.start_main_~i~6 7) (<= 7 ULTIMATE.start_main_~MAX~6))} assume !(main_~i~6 < main_~MAX~6);main_~str1~6 := main_~str1~6[main_~MAX~6 - 1 := 0];main_~j~6 := 0;main_~i~6 := main_~MAX~6 - 1; {1728#(and (<= ULTIMATE.start_main_~MAX~6 7) (= ULTIMATE.start_main_~j~6 0) (<= 7 ULTIMATE.start_main_~MAX~6))} is VALID [2019-01-31 14:58:14,617 INFO L273 TraceCheckUtils]: 9: Hoare triple {1728#(and (<= ULTIMATE.start_main_~MAX~6 7) (= ULTIMATE.start_main_~j~6 0) (<= 7 ULTIMATE.start_main_~MAX~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {1732#(and (<= ULTIMATE.start_main_~MAX~6 7) (= ULTIMATE.start_main_~j~6 1) (<= 7 ULTIMATE.start_main_~MAX~6))} is VALID [2019-01-31 14:58:14,617 INFO L273 TraceCheckUtils]: 10: Hoare triple {1732#(and (<= ULTIMATE.start_main_~MAX~6 7) (= ULTIMATE.start_main_~j~6 1) (<= 7 ULTIMATE.start_main_~MAX~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {1736#(and (<= ULTIMATE.start_main_~MAX~6 7) (= ULTIMATE.start_main_~j~6 2) (<= 7 ULTIMATE.start_main_~MAX~6))} is VALID [2019-01-31 14:58:14,618 INFO L273 TraceCheckUtils]: 11: Hoare triple {1736#(and (<= ULTIMATE.start_main_~MAX~6 7) (= ULTIMATE.start_main_~j~6 2) (<= 7 ULTIMATE.start_main_~MAX~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {1740#(and (<= ULTIMATE.start_main_~MAX~6 7) (= ULTIMATE.start_main_~j~6 3) (<= 7 ULTIMATE.start_main_~MAX~6))} is VALID [2019-01-31 14:58:14,618 INFO L273 TraceCheckUtils]: 12: Hoare triple {1740#(and (<= ULTIMATE.start_main_~MAX~6 7) (= ULTIMATE.start_main_~j~6 3) (<= 7 ULTIMATE.start_main_~MAX~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {1744#(and (<= ULTIMATE.start_main_~MAX~6 7) (= ULTIMATE.start_main_~j~6 4) (<= 7 ULTIMATE.start_main_~MAX~6))} is VALID [2019-01-31 14:58:14,619 INFO L273 TraceCheckUtils]: 13: Hoare triple {1744#(and (<= ULTIMATE.start_main_~MAX~6 7) (= ULTIMATE.start_main_~j~6 4) (<= 7 ULTIMATE.start_main_~MAX~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {1748#(and (<= ULTIMATE.start_main_~MAX~6 7) (= ULTIMATE.start_main_~j~6 5) (<= 7 ULTIMATE.start_main_~MAX~6))} is VALID [2019-01-31 14:58:14,620 INFO L273 TraceCheckUtils]: 14: Hoare triple {1748#(and (<= ULTIMATE.start_main_~MAX~6 7) (= ULTIMATE.start_main_~j~6 5) (<= 7 ULTIMATE.start_main_~MAX~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {1752#(and (<= ULTIMATE.start_main_~MAX~6 7) (= ULTIMATE.start_main_~j~6 6) (<= 7 ULTIMATE.start_main_~MAX~6))} is VALID [2019-01-31 14:58:14,621 INFO L273 TraceCheckUtils]: 15: Hoare triple {1752#(and (<= ULTIMATE.start_main_~MAX~6 7) (= ULTIMATE.start_main_~j~6 6) (<= 7 ULTIMATE.start_main_~MAX~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {1756#(and (= (select ULTIMATE.start_main_~str2~6 6) (select ULTIMATE.start_main_~str1~6 0)) (<= ULTIMATE.start_main_~MAX~6 7) (<= 7 ULTIMATE.start_main_~MAX~6))} is VALID [2019-01-31 14:58:14,622 INFO L273 TraceCheckUtils]: 16: Hoare triple {1756#(and (= (select ULTIMATE.start_main_~str2~6 6) (select ULTIMATE.start_main_~str1~6 0)) (<= ULTIMATE.start_main_~MAX~6 7) (<= 7 ULTIMATE.start_main_~MAX~6))} assume !(main_~i~6 >= 0);main_~j~6 := main_~MAX~6 - 1;main_~i~6 := 0;assume !!(main_~i~6 < main_~MAX~6);__VERIFIER_assert_#in~cond := (if main_~str1~6[main_~i~6] == main_~str2~6[main_~j~6] then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond;assume __VERIFIER_assert_~cond == 0;assume !false; {1682#false} is VALID [2019-01-31 14:58:14,623 INFO L273 TraceCheckUtils]: 17: Hoare triple {1682#false} assume !false; {1682#false} is VALID [2019-01-31 14:58:14,624 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-31 14:58:14,624 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2019-01-31 14:58:14,654 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 5 [2019-01-31 14:58:14,655 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-01-31 14:58:14,659 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-31 14:58:14,659 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:14, output treesize:5 [2019-01-31 14:58:14,661 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-01-31 14:58:14,661 WARN L398 uantifierElimination]: Input elimination task: ∀ [ULTIMATE.start_main_~str2~6, ULTIMATE.start_main_~str1~6]. (let ((.cse0 (select ULTIMATE.start_main_~str1~6 0))) (= .cse0 (select (store ULTIMATE.start_main_~str2~6 ULTIMATE.start_main_~j~6 .cse0) (+ ULTIMATE.start_main_~MAX~6 (- 1))))) [2019-01-31 14:58:14,662 WARN L399 uantifierElimination]: ElimStorePlain result: ∀ []. (= (+ ULTIMATE.start_main_~j~6 1) ULTIMATE.start_main_~MAX~6) [2019-01-31 14:58:14,847 INFO L273 TraceCheckUtils]: 17: Hoare triple {1682#false} assume !false; {1682#false} is VALID [2019-01-31 14:58:14,849 INFO L273 TraceCheckUtils]: 16: Hoare triple {1698#(= (select ULTIMATE.start_main_~str1~6 0) (select ULTIMATE.start_main_~str2~6 (+ ULTIMATE.start_main_~MAX~6 (- 1))))} assume !(main_~i~6 >= 0);main_~j~6 := main_~MAX~6 - 1;main_~i~6 := 0;assume !!(main_~i~6 < main_~MAX~6);__VERIFIER_assert_#in~cond := (if main_~str1~6[main_~i~6] == main_~str2~6[main_~j~6] then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond;assume __VERIFIER_assert_~cond == 0;assume !false; {1682#false} is VALID [2019-01-31 14:58:14,854 INFO L273 TraceCheckUtils]: 15: Hoare triple {1697#(= (+ ULTIMATE.start_main_~j~6 1) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {1698#(= (select ULTIMATE.start_main_~str1~6 0) (select ULTIMATE.start_main_~str2~6 (+ ULTIMATE.start_main_~MAX~6 (- 1))))} is VALID [2019-01-31 14:58:14,854 INFO L273 TraceCheckUtils]: 14: Hoare triple {1696#(= (+ ULTIMATE.start_main_~j~6 2) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {1697#(= (+ ULTIMATE.start_main_~j~6 1) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:58:14,855 INFO L273 TraceCheckUtils]: 13: Hoare triple {1695#(= (+ ULTIMATE.start_main_~j~6 3) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {1696#(= (+ ULTIMATE.start_main_~j~6 2) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:58:14,856 INFO L273 TraceCheckUtils]: 12: Hoare triple {1694#(= (+ ULTIMATE.start_main_~j~6 4) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {1695#(= (+ ULTIMATE.start_main_~j~6 3) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:58:14,856 INFO L273 TraceCheckUtils]: 11: Hoare triple {1693#(= (+ ULTIMATE.start_main_~j~6 5) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {1694#(= (+ ULTIMATE.start_main_~j~6 4) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:58:14,857 INFO L273 TraceCheckUtils]: 10: Hoare triple {1692#(= (+ ULTIMATE.start_main_~j~6 6) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {1693#(= (+ ULTIMATE.start_main_~j~6 5) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:58:14,858 INFO L273 TraceCheckUtils]: 9: Hoare triple {1691#(= (+ ULTIMATE.start_main_~j~6 7) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {1692#(= (+ ULTIMATE.start_main_~j~6 6) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:58:14,859 INFO L273 TraceCheckUtils]: 8: Hoare triple {1690#(or (<= (+ ULTIMATE.start_main_~i~6 1) ULTIMATE.start_main_~MAX~6) (= 7 ULTIMATE.start_main_~MAX~6))} assume !(main_~i~6 < main_~MAX~6);main_~str1~6 := main_~str1~6[main_~MAX~6 - 1 := 0];main_~j~6 := 0;main_~i~6 := main_~MAX~6 - 1; {1691#(= (+ ULTIMATE.start_main_~j~6 7) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:58:14,860 INFO L273 TraceCheckUtils]: 7: Hoare triple {1720#(and (<= ULTIMATE.start_main_~i~6 6) (<= 6 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {1690#(or (<= (+ ULTIMATE.start_main_~i~6 1) ULTIMATE.start_main_~MAX~6) (= 7 ULTIMATE.start_main_~MAX~6))} is VALID [2019-01-31 14:58:14,861 INFO L273 TraceCheckUtils]: 6: Hoare triple {1688#(and (<= 5 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 5))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {1720#(and (<= ULTIMATE.start_main_~i~6 6) (<= 6 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:58:14,862 INFO L273 TraceCheckUtils]: 5: Hoare triple {1687#(and (<= ULTIMATE.start_main_~i~6 4) (<= 4 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {1688#(and (<= 5 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 5))} is VALID [2019-01-31 14:58:14,863 INFO L273 TraceCheckUtils]: 4: Hoare triple {1686#(and (<= 3 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 3))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {1687#(and (<= ULTIMATE.start_main_~i~6 4) (<= 4 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:58:14,865 INFO L273 TraceCheckUtils]: 3: Hoare triple {1685#(and (<= ULTIMATE.start_main_~i~6 2) (<= 2 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {1686#(and (<= 3 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 3))} is VALID [2019-01-31 14:58:14,866 INFO L273 TraceCheckUtils]: 2: Hoare triple {1684#(and (<= ULTIMATE.start_main_~i~6 1) (<= 1 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {1685#(and (<= ULTIMATE.start_main_~i~6 2) (<= 2 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:58:14,867 INFO L273 TraceCheckUtils]: 1: Hoare triple {1683#(and (<= ULTIMATE.start_main_~i~6 0) (<= 0 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {1684#(and (<= ULTIMATE.start_main_~i~6 1) (<= 1 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:58:14,868 INFO L273 TraceCheckUtils]: 0: Hoare triple {1681#true} havoc main_#res;havoc main_#t~nondet0, main_#t~nondet2, main_#t~post1, main_#t~post4, main_#t~post3, main_#t~post6, main_#t~post5, main_~MAX~6, main_~str1~6, main_~str2~6, main_~cont~6, main_~i~6, main_~j~6;main_~MAX~6 := (if main_#t~nondet0 % 4294967296 % 4294967296 <= 2147483647 then main_#t~nondet0 % 4294967296 % 4294967296 else main_#t~nondet0 % 4294967296 % 4294967296 - 4294967296);havoc main_#t~nondet0;havoc main_~str1~6;havoc main_~str2~6;havoc main_~cont~6;havoc main_~i~6;havoc main_~j~6;main_~cont~6 := 0;main_~i~6 := 0; {1683#(and (<= ULTIMATE.start_main_~i~6 0) (<= 0 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:58:14,869 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-31 14:58:14,889 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-01-31 14:58:14,889 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 27 [2019-01-31 14:58:14,889 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-01-31 14:58:14,890 INFO L78 Accepts]: Start accepts. Automaton has 28 states. Word has length 18 [2019-01-31 14:58:14,890 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-01-31 14:58:14,890 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 28 states. [2019-01-31 14:58:14,921 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 29 edges. 29 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-01-31 14:58:14,921 INFO L459 AbstractCegarLoop]: Interpolant automaton has 28 states [2019-01-31 14:58:14,922 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2019-01-31 14:58:14,922 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=677, Unknown=0, NotChecked=0, Total=756 [2019-01-31 14:58:14,923 INFO L87 Difference]: Start difference. First operand 19 states and 20 transitions. Second operand 28 states. [2019-01-31 14:58:16,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 14:58:16,591 INFO L93 Difference]: Finished difference Result 30 states and 32 transitions. [2019-01-31 14:58:16,591 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2019-01-31 14:58:16,591 INFO L78 Accepts]: Start accepts. Automaton has 28 states. Word has length 18 [2019-01-31 14:58:16,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-31 14:58:16,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2019-01-31 14:58:16,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 26 transitions. [2019-01-31 14:58:16,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2019-01-31 14:58:16,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 26 transitions. [2019-01-31 14:58:16,594 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 21 states and 26 transitions. [2019-01-31 14:58:16,625 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 26 edges. 26 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-01-31 14:58:16,626 INFO L225 Difference]: With dead ends: 30 [2019-01-31 14:58:16,626 INFO L226 Difference]: Without dead ends: 20 [2019-01-31 14:58:16,627 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 21 SyntacticMatches, 4 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 183 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=168, Invalid=1238, Unknown=0, NotChecked=0, Total=1406 [2019-01-31 14:58:16,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2019-01-31 14:58:16,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2019-01-31 14:58:16,756 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-01-31 14:58:16,756 INFO L82 GeneralOperation]: Start isEquivalent. First operand 20 states. Second operand 20 states. [2019-01-31 14:58:16,756 INFO L74 IsIncluded]: Start isIncluded. First operand 20 states. Second operand 20 states. [2019-01-31 14:58:16,756 INFO L87 Difference]: Start difference. First operand 20 states. Second operand 20 states. [2019-01-31 14:58:16,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 14:58:16,757 INFO L93 Difference]: Finished difference Result 20 states and 21 transitions. [2019-01-31 14:58:16,757 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 21 transitions. [2019-01-31 14:58:16,758 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-31 14:58:16,758 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-01-31 14:58:16,759 INFO L74 IsIncluded]: Start isIncluded. First operand 20 states. Second operand 20 states. [2019-01-31 14:58:16,759 INFO L87 Difference]: Start difference. First operand 20 states. Second operand 20 states. [2019-01-31 14:58:16,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 14:58:16,759 INFO L93 Difference]: Finished difference Result 20 states and 21 transitions. [2019-01-31 14:58:16,760 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 21 transitions. [2019-01-31 14:58:16,760 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-31 14:58:16,760 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-01-31 14:58:16,760 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-01-31 14:58:16,760 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-01-31 14:58:16,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2019-01-31 14:58:16,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 21 transitions. [2019-01-31 14:58:16,761 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 21 transitions. Word has length 18 [2019-01-31 14:58:16,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-31 14:58:16,761 INFO L480 AbstractCegarLoop]: Abstraction has 20 states and 21 transitions. [2019-01-31 14:58:16,761 INFO L481 AbstractCegarLoop]: Interpolant automaton has 28 states. [2019-01-31 14:58:16,761 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 21 transitions. [2019-01-31 14:58:16,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-01-31 14:58:16,762 INFO L394 BasicCegarLoop]: Found error trace [2019-01-31 14:58:16,762 INFO L402 BasicCegarLoop]: trace histogram [8, 7, 1, 1, 1, 1] [2019-01-31 14:58:16,762 INFO L423 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2019-01-31 14:58:16,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-31 14:58:16,763 INFO L82 PathProgramCache]: Analyzing trace with hash -1547184052, now seen corresponding path program 11 times [2019-01-31 14:58:16,763 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-01-31 14:58:16,764 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-31 14:58:16,764 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-31 14:58:16,764 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-31 14:58:16,764 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-01-31 14:58:16,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-31 14:58:16,932 INFO L273 TraceCheckUtils]: 0: Hoare triple {1968#true} havoc main_#res;havoc main_#t~nondet0, main_#t~nondet2, main_#t~post1, main_#t~post4, main_#t~post3, main_#t~post6, main_#t~post5, main_~MAX~6, main_~str1~6, main_~str2~6, main_~cont~6, main_~i~6, main_~j~6;main_~MAX~6 := (if main_#t~nondet0 % 4294967296 % 4294967296 <= 2147483647 then main_#t~nondet0 % 4294967296 % 4294967296 else main_#t~nondet0 % 4294967296 % 4294967296 - 4294967296);havoc main_#t~nondet0;havoc main_~str1~6;havoc main_~str2~6;havoc main_~cont~6;havoc main_~i~6;havoc main_~j~6;main_~cont~6 := 0;main_~i~6 := 0; {1970#(<= 0 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:16,934 INFO L273 TraceCheckUtils]: 1: Hoare triple {1970#(<= 0 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {1971#(<= 1 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:16,935 INFO L273 TraceCheckUtils]: 2: Hoare triple {1971#(<= 1 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {1972#(<= 2 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:16,936 INFO L273 TraceCheckUtils]: 3: Hoare triple {1972#(<= 2 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {1973#(<= 3 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:16,936 INFO L273 TraceCheckUtils]: 4: Hoare triple {1973#(<= 3 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {1974#(<= 4 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:16,937 INFO L273 TraceCheckUtils]: 5: Hoare triple {1974#(<= 4 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {1975#(<= 5 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:16,938 INFO L273 TraceCheckUtils]: 6: Hoare triple {1975#(<= 5 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {1976#(<= 6 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:16,939 INFO L273 TraceCheckUtils]: 7: Hoare triple {1976#(<= 6 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {1977#(<= 7 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:16,940 INFO L273 TraceCheckUtils]: 8: Hoare triple {1977#(<= 7 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {1978#(<= 8 ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:58:16,941 INFO L273 TraceCheckUtils]: 9: Hoare triple {1978#(<= 8 ULTIMATE.start_main_~MAX~6)} assume !(main_~i~6 < main_~MAX~6);main_~str1~6 := main_~str1~6[main_~MAX~6 - 1 := 0];main_~j~6 := 0;main_~i~6 := main_~MAX~6 - 1; {1977#(<= 7 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:16,942 INFO L273 TraceCheckUtils]: 10: Hoare triple {1977#(<= 7 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {1976#(<= 6 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:16,943 INFO L273 TraceCheckUtils]: 11: Hoare triple {1976#(<= 6 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {1975#(<= 5 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:16,944 INFO L273 TraceCheckUtils]: 12: Hoare triple {1975#(<= 5 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {1974#(<= 4 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:16,945 INFO L273 TraceCheckUtils]: 13: Hoare triple {1974#(<= 4 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {1973#(<= 3 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:16,946 INFO L273 TraceCheckUtils]: 14: Hoare triple {1973#(<= 3 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {1972#(<= 2 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:16,947 INFO L273 TraceCheckUtils]: 15: Hoare triple {1972#(<= 2 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {1971#(<= 1 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:16,948 INFO L273 TraceCheckUtils]: 16: Hoare triple {1971#(<= 1 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {1970#(<= 0 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:16,948 INFO L273 TraceCheckUtils]: 17: Hoare triple {1970#(<= 0 ULTIMATE.start_main_~i~6)} assume !(main_~i~6 >= 0);main_~j~6 := main_~MAX~6 - 1;main_~i~6 := 0;assume !!(main_~i~6 < main_~MAX~6);__VERIFIER_assert_#in~cond := (if main_~str1~6[main_~i~6] == main_~str2~6[main_~j~6] then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond;assume __VERIFIER_assert_~cond == 0;assume !false; {1969#false} is VALID [2019-01-31 14:58:16,948 INFO L273 TraceCheckUtils]: 18: Hoare triple {1969#false} assume !false; {1969#false} is VALID [2019-01-31 14:58:16,949 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 28 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-31 14:58:16,950 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-31 14:58:16,950 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-01-31 14:58:16,950 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-01-31 14:58:16,950 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-01-31 14:58:16,951 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-31 14:58:16,951 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-01-31 14:58:16,959 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2019-01-31 14:58:16,960 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST2 (IT: FPandBP) [2019-01-31 14:58:16,980 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2019-01-31 14:58:16,980 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-01-31 14:58:16,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-31 14:58:16,990 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-31 14:58:17,072 INFO L273 TraceCheckUtils]: 0: Hoare triple {1968#true} havoc main_#res;havoc main_#t~nondet0, main_#t~nondet2, main_#t~post1, main_#t~post4, main_#t~post3, main_#t~post6, main_#t~post5, main_~MAX~6, main_~str1~6, main_~str2~6, main_~cont~6, main_~i~6, main_~j~6;main_~MAX~6 := (if main_#t~nondet0 % 4294967296 % 4294967296 <= 2147483647 then main_#t~nondet0 % 4294967296 % 4294967296 else main_#t~nondet0 % 4294967296 % 4294967296 - 4294967296);havoc main_#t~nondet0;havoc main_~str1~6;havoc main_~str2~6;havoc main_~cont~6;havoc main_~i~6;havoc main_~j~6;main_~cont~6 := 0;main_~i~6 := 0; {1970#(<= 0 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:17,073 INFO L273 TraceCheckUtils]: 1: Hoare triple {1970#(<= 0 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {1971#(<= 1 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:17,074 INFO L273 TraceCheckUtils]: 2: Hoare triple {1971#(<= 1 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {1972#(<= 2 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:17,075 INFO L273 TraceCheckUtils]: 3: Hoare triple {1972#(<= 2 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {1973#(<= 3 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:17,080 INFO L273 TraceCheckUtils]: 4: Hoare triple {1973#(<= 3 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {1974#(<= 4 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:17,083 INFO L273 TraceCheckUtils]: 5: Hoare triple {1974#(<= 4 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {1975#(<= 5 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:17,084 INFO L273 TraceCheckUtils]: 6: Hoare triple {1975#(<= 5 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {1976#(<= 6 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:17,084 INFO L273 TraceCheckUtils]: 7: Hoare triple {1976#(<= 6 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {1977#(<= 7 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:17,085 INFO L273 TraceCheckUtils]: 8: Hoare triple {1977#(<= 7 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {1978#(<= 8 ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:58:17,086 INFO L273 TraceCheckUtils]: 9: Hoare triple {1978#(<= 8 ULTIMATE.start_main_~MAX~6)} assume !(main_~i~6 < main_~MAX~6);main_~str1~6 := main_~str1~6[main_~MAX~6 - 1 := 0];main_~j~6 := 0;main_~i~6 := main_~MAX~6 - 1; {1977#(<= 7 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:17,087 INFO L273 TraceCheckUtils]: 10: Hoare triple {1977#(<= 7 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {1976#(<= 6 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:17,088 INFO L273 TraceCheckUtils]: 11: Hoare triple {1976#(<= 6 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {1975#(<= 5 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:17,089 INFO L273 TraceCheckUtils]: 12: Hoare triple {1975#(<= 5 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {1974#(<= 4 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:17,090 INFO L273 TraceCheckUtils]: 13: Hoare triple {1974#(<= 4 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {1973#(<= 3 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:17,091 INFO L273 TraceCheckUtils]: 14: Hoare triple {1973#(<= 3 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {1972#(<= 2 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:17,092 INFO L273 TraceCheckUtils]: 15: Hoare triple {1972#(<= 2 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {1971#(<= 1 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:17,093 INFO L273 TraceCheckUtils]: 16: Hoare triple {1971#(<= 1 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {1970#(<= 0 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:17,093 INFO L273 TraceCheckUtils]: 17: Hoare triple {1970#(<= 0 ULTIMATE.start_main_~i~6)} assume !(main_~i~6 >= 0);main_~j~6 := main_~MAX~6 - 1;main_~i~6 := 0;assume !!(main_~i~6 < main_~MAX~6);__VERIFIER_assert_#in~cond := (if main_~str1~6[main_~i~6] == main_~str2~6[main_~j~6] then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond;assume __VERIFIER_assert_~cond == 0;assume !false; {1969#false} is VALID [2019-01-31 14:58:17,093 INFO L273 TraceCheckUtils]: 18: Hoare triple {1969#false} assume !false; {1969#false} is VALID [2019-01-31 14:58:17,094 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 28 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-31 14:58:17,094 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2019-01-31 14:58:17,253 INFO L273 TraceCheckUtils]: 18: Hoare triple {1969#false} assume !false; {1969#false} is VALID [2019-01-31 14:58:17,254 INFO L273 TraceCheckUtils]: 17: Hoare triple {1970#(<= 0 ULTIMATE.start_main_~i~6)} assume !(main_~i~6 >= 0);main_~j~6 := main_~MAX~6 - 1;main_~i~6 := 0;assume !!(main_~i~6 < main_~MAX~6);__VERIFIER_assert_#in~cond := (if main_~str1~6[main_~i~6] == main_~str2~6[main_~j~6] then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond;assume __VERIFIER_assert_~cond == 0;assume !false; {1969#false} is VALID [2019-01-31 14:58:17,254 INFO L273 TraceCheckUtils]: 16: Hoare triple {1971#(<= 1 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {1970#(<= 0 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:17,255 INFO L273 TraceCheckUtils]: 15: Hoare triple {1972#(<= 2 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {1971#(<= 1 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:17,255 INFO L273 TraceCheckUtils]: 14: Hoare triple {1973#(<= 3 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {1972#(<= 2 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:17,256 INFO L273 TraceCheckUtils]: 13: Hoare triple {1974#(<= 4 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {1973#(<= 3 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:17,257 INFO L273 TraceCheckUtils]: 12: Hoare triple {1975#(<= 5 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {1974#(<= 4 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:17,258 INFO L273 TraceCheckUtils]: 11: Hoare triple {1976#(<= 6 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {1975#(<= 5 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:17,259 INFO L273 TraceCheckUtils]: 10: Hoare triple {1977#(<= 7 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {1976#(<= 6 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:17,260 INFO L273 TraceCheckUtils]: 9: Hoare triple {1978#(<= 8 ULTIMATE.start_main_~MAX~6)} assume !(main_~i~6 < main_~MAX~6);main_~str1~6 := main_~str1~6[main_~MAX~6 - 1 := 0];main_~j~6 := 0;main_~i~6 := main_~MAX~6 - 1; {1977#(<= 7 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:17,261 INFO L273 TraceCheckUtils]: 8: Hoare triple {1977#(<= 7 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {1978#(<= 8 ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:58:17,262 INFO L273 TraceCheckUtils]: 7: Hoare triple {1976#(<= 6 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {1977#(<= 7 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:17,263 INFO L273 TraceCheckUtils]: 6: Hoare triple {1975#(<= 5 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {1976#(<= 6 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:17,263 INFO L273 TraceCheckUtils]: 5: Hoare triple {1974#(<= 4 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {1975#(<= 5 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:17,264 INFO L273 TraceCheckUtils]: 4: Hoare triple {1973#(<= 3 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {1974#(<= 4 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:17,265 INFO L273 TraceCheckUtils]: 3: Hoare triple {1972#(<= 2 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {1973#(<= 3 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:17,266 INFO L273 TraceCheckUtils]: 2: Hoare triple {1971#(<= 1 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {1972#(<= 2 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:17,267 INFO L273 TraceCheckUtils]: 1: Hoare triple {1970#(<= 0 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {1971#(<= 1 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:17,268 INFO L273 TraceCheckUtils]: 0: Hoare triple {1968#true} havoc main_#res;havoc main_#t~nondet0, main_#t~nondet2, main_#t~post1, main_#t~post4, main_#t~post3, main_#t~post6, main_#t~post5, main_~MAX~6, main_~str1~6, main_~str2~6, main_~cont~6, main_~i~6, main_~j~6;main_~MAX~6 := (if main_#t~nondet0 % 4294967296 % 4294967296 <= 2147483647 then main_#t~nondet0 % 4294967296 % 4294967296 else main_#t~nondet0 % 4294967296 % 4294967296 - 4294967296);havoc main_#t~nondet0;havoc main_~str1~6;havoc main_~str2~6;havoc main_~cont~6;havoc main_~i~6;havoc main_~j~6;main_~cont~6 := 0;main_~i~6 := 0; {1970#(<= 0 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:17,269 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 28 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-31 14:58:17,288 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-01-31 14:58:17,288 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 10 [2019-01-31 14:58:17,288 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-01-31 14:58:17,288 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 19 [2019-01-31 14:58:17,289 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-01-31 14:58:17,289 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 11 states. [2019-01-31 14:58:17,313 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 19 edges. 19 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-01-31 14:58:17,313 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-01-31 14:58:17,313 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-01-31 14:58:17,314 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2019-01-31 14:58:17,314 INFO L87 Difference]: Start difference. First operand 20 states and 21 transitions. Second operand 11 states. [2019-01-31 14:58:17,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 14:58:17,802 INFO L93 Difference]: Finished difference Result 23 states and 24 transitions. [2019-01-31 14:58:17,802 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2019-01-31 14:58:17,803 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 19 [2019-01-31 14:58:17,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-31 14:58:17,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2019-01-31 14:58:17,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 24 transitions. [2019-01-31 14:58:17,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2019-01-31 14:58:17,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 24 transitions. [2019-01-31 14:58:17,804 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 19 states and 24 transitions. [2019-01-31 14:58:17,828 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 24 edges. 24 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-01-31 14:58:17,829 INFO L225 Difference]: With dead ends: 23 [2019-01-31 14:58:17,829 INFO L226 Difference]: Without dead ends: 21 [2019-01-31 14:58:17,830 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 29 SyntacticMatches, 16 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=135, Invalid=207, Unknown=0, NotChecked=0, Total=342 [2019-01-31 14:58:17,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2019-01-31 14:58:17,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2019-01-31 14:58:17,989 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-01-31 14:58:17,989 INFO L82 GeneralOperation]: Start isEquivalent. First operand 21 states. Second operand 21 states. [2019-01-31 14:58:17,989 INFO L74 IsIncluded]: Start isIncluded. First operand 21 states. Second operand 21 states. [2019-01-31 14:58:17,989 INFO L87 Difference]: Start difference. First operand 21 states. Second operand 21 states. [2019-01-31 14:58:17,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 14:58:17,990 INFO L93 Difference]: Finished difference Result 21 states and 22 transitions. [2019-01-31 14:58:17,990 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 22 transitions. [2019-01-31 14:58:17,991 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-31 14:58:17,991 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-01-31 14:58:17,991 INFO L74 IsIncluded]: Start isIncluded. First operand 21 states. Second operand 21 states. [2019-01-31 14:58:17,991 INFO L87 Difference]: Start difference. First operand 21 states. Second operand 21 states. [2019-01-31 14:58:17,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 14:58:17,992 INFO L93 Difference]: Finished difference Result 21 states and 22 transitions. [2019-01-31 14:58:17,992 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 22 transitions. [2019-01-31 14:58:17,992 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-31 14:58:17,992 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-01-31 14:58:17,992 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-01-31 14:58:17,992 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-01-31 14:58:17,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2019-01-31 14:58:17,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 22 transitions. [2019-01-31 14:58:17,993 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 22 transitions. Word has length 19 [2019-01-31 14:58:17,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-31 14:58:17,993 INFO L480 AbstractCegarLoop]: Abstraction has 21 states and 22 transitions. [2019-01-31 14:58:17,993 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-01-31 14:58:17,993 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 22 transitions. [2019-01-31 14:58:17,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-01-31 14:58:17,993 INFO L394 BasicCegarLoop]: Found error trace [2019-01-31 14:58:17,993 INFO L402 BasicCegarLoop]: trace histogram [8, 8, 1, 1, 1, 1] [2019-01-31 14:58:17,994 INFO L423 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2019-01-31 14:58:17,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-31 14:58:17,994 INFO L82 PathProgramCache]: Analyzing trace with hash -718063542, now seen corresponding path program 12 times [2019-01-31 14:58:17,994 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-01-31 14:58:17,995 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-31 14:58:17,995 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-01-31 14:58:17,995 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-31 14:58:17,995 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-01-31 14:58:18,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-31 14:58:18,440 INFO L273 TraceCheckUtils]: 0: Hoare triple {2230#true} havoc main_#res;havoc main_#t~nondet0, main_#t~nondet2, main_#t~post1, main_#t~post4, main_#t~post3, main_#t~post6, main_#t~post5, main_~MAX~6, main_~str1~6, main_~str2~6, main_~cont~6, main_~i~6, main_~j~6;main_~MAX~6 := (if main_#t~nondet0 % 4294967296 % 4294967296 <= 2147483647 then main_#t~nondet0 % 4294967296 % 4294967296 else main_#t~nondet0 % 4294967296 % 4294967296 - 4294967296);havoc main_#t~nondet0;havoc main_~str1~6;havoc main_~str2~6;havoc main_~cont~6;havoc main_~i~6;havoc main_~j~6;main_~cont~6 := 0;main_~i~6 := 0; {2232#(and (<= ULTIMATE.start_main_~i~6 0) (<= 0 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:58:18,441 INFO L273 TraceCheckUtils]: 1: Hoare triple {2232#(and (<= ULTIMATE.start_main_~i~6 0) (<= 0 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {2233#(and (<= ULTIMATE.start_main_~i~6 1) (<= 1 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:58:18,442 INFO L273 TraceCheckUtils]: 2: Hoare triple {2233#(and (<= ULTIMATE.start_main_~i~6 1) (<= 1 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {2234#(and (<= ULTIMATE.start_main_~i~6 2) (<= 2 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:58:18,443 INFO L273 TraceCheckUtils]: 3: Hoare triple {2234#(and (<= ULTIMATE.start_main_~i~6 2) (<= 2 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {2235#(and (<= 3 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 3))} is VALID [2019-01-31 14:58:18,444 INFO L273 TraceCheckUtils]: 4: Hoare triple {2235#(and (<= 3 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 3))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {2236#(and (<= ULTIMATE.start_main_~i~6 4) (<= 4 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:58:18,445 INFO L273 TraceCheckUtils]: 5: Hoare triple {2236#(and (<= ULTIMATE.start_main_~i~6 4) (<= 4 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {2237#(and (<= 5 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 5))} is VALID [2019-01-31 14:58:18,446 INFO L273 TraceCheckUtils]: 6: Hoare triple {2237#(and (<= 5 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 5))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {2238#(and (<= ULTIMATE.start_main_~i~6 6) (<= 6 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:58:18,447 INFO L273 TraceCheckUtils]: 7: Hoare triple {2238#(and (<= ULTIMATE.start_main_~i~6 6) (<= 6 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {2239#(or (not (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 1))) (and (<= 7 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 7)))} is VALID [2019-01-31 14:58:18,448 INFO L273 TraceCheckUtils]: 8: Hoare triple {2239#(or (not (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 1))) (and (<= 7 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 7)))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {2240#(or (<= (+ ULTIMATE.start_main_~i~6 1) ULTIMATE.start_main_~MAX~6) (= 8 ULTIMATE.start_main_~MAX~6))} is VALID [2019-01-31 14:58:18,449 INFO L273 TraceCheckUtils]: 9: Hoare triple {2240#(or (<= (+ ULTIMATE.start_main_~i~6 1) ULTIMATE.start_main_~MAX~6) (= 8 ULTIMATE.start_main_~MAX~6))} assume !(main_~i~6 < main_~MAX~6);main_~str1~6 := main_~str1~6[main_~MAX~6 - 1 := 0];main_~j~6 := 0;main_~i~6 := main_~MAX~6 - 1; {2241#(= (+ ULTIMATE.start_main_~j~6 8) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:58:18,450 INFO L273 TraceCheckUtils]: 10: Hoare triple {2241#(= (+ ULTIMATE.start_main_~j~6 8) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {2242#(= (+ ULTIMATE.start_main_~j~6 7) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:58:18,451 INFO L273 TraceCheckUtils]: 11: Hoare triple {2242#(= (+ ULTIMATE.start_main_~j~6 7) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {2243#(= (+ ULTIMATE.start_main_~j~6 6) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:58:18,452 INFO L273 TraceCheckUtils]: 12: Hoare triple {2243#(= (+ ULTIMATE.start_main_~j~6 6) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {2244#(= (+ ULTIMATE.start_main_~j~6 5) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:58:18,453 INFO L273 TraceCheckUtils]: 13: Hoare triple {2244#(= (+ ULTIMATE.start_main_~j~6 5) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {2245#(= (+ ULTIMATE.start_main_~j~6 4) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:58:18,455 INFO L273 TraceCheckUtils]: 14: Hoare triple {2245#(= (+ ULTIMATE.start_main_~j~6 4) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {2246#(= (+ ULTIMATE.start_main_~j~6 3) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:58:18,456 INFO L273 TraceCheckUtils]: 15: Hoare triple {2246#(= (+ ULTIMATE.start_main_~j~6 3) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {2247#(= (+ ULTIMATE.start_main_~j~6 2) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:58:18,457 INFO L273 TraceCheckUtils]: 16: Hoare triple {2247#(= (+ ULTIMATE.start_main_~j~6 2) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {2248#(= (+ ULTIMATE.start_main_~j~6 1) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:58:18,458 INFO L273 TraceCheckUtils]: 17: Hoare triple {2248#(= (+ ULTIMATE.start_main_~j~6 1) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {2249#(= (select ULTIMATE.start_main_~str1~6 0) (select ULTIMATE.start_main_~str2~6 (+ ULTIMATE.start_main_~MAX~6 (- 1))))} is VALID [2019-01-31 14:58:18,459 INFO L273 TraceCheckUtils]: 18: Hoare triple {2249#(= (select ULTIMATE.start_main_~str1~6 0) (select ULTIMATE.start_main_~str2~6 (+ ULTIMATE.start_main_~MAX~6 (- 1))))} assume !(main_~i~6 >= 0);main_~j~6 := main_~MAX~6 - 1;main_~i~6 := 0;assume !!(main_~i~6 < main_~MAX~6);__VERIFIER_assert_#in~cond := (if main_~str1~6[main_~i~6] == main_~str2~6[main_~j~6] then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond;assume __VERIFIER_assert_~cond == 0;assume !false; {2231#false} is VALID [2019-01-31 14:58:18,459 INFO L273 TraceCheckUtils]: 19: Hoare triple {2231#false} assume !false; {2231#false} is VALID [2019-01-31 14:58:18,460 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 72 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-31 14:58:18,461 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-31 14:58:18,461 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-01-31 14:58:18,461 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-01-31 14:58:18,461 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-01-31 14:58:18,461 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-31 14:58:18,461 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-01-31 14:58:18,487 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2019-01-31 14:58:18,487 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder TERMS_WITH_SMALL_CONSTANTS_FIRST (IT: FPandBP) [2019-01-31 14:58:18,501 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-01-31 14:58:18,502 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-01-31 14:58:18,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-31 14:58:18,510 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-31 14:58:18,768 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2019-01-31 14:58:18,769 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-01-31 14:58:18,774 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-31 14:58:18,775 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:17, output treesize:16 [2019-01-31 14:58:18,777 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-01-31 14:58:18,777 WARN L398 uantifierElimination]: Input elimination task: ∃ [v_ULTIMATE.start_main_~str2~6_58]. (and (= ULTIMATE.start_main_~str2~6 (store v_ULTIMATE.start_main_~str2~6_58 7 (select ULTIMATE.start_main_~str1~6 0))) (<= 8 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 9))) [2019-01-31 14:58:18,778 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= (select ULTIMATE.start_main_~str1~6 0) (select ULTIMATE.start_main_~str2~6 7)) (<= 8 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 9))) [2019-01-31 14:58:18,822 INFO L273 TraceCheckUtils]: 0: Hoare triple {2230#true} havoc main_#res;havoc main_#t~nondet0, main_#t~nondet2, main_#t~post1, main_#t~post4, main_#t~post3, main_#t~post6, main_#t~post5, main_~MAX~6, main_~str1~6, main_~str2~6, main_~cont~6, main_~i~6, main_~j~6;main_~MAX~6 := (if main_#t~nondet0 % 4294967296 % 4294967296 <= 2147483647 then main_#t~nondet0 % 4294967296 % 4294967296 else main_#t~nondet0 % 4294967296 % 4294967296 - 4294967296);havoc main_#t~nondet0;havoc main_~str1~6;havoc main_~str2~6;havoc main_~cont~6;havoc main_~i~6;havoc main_~j~6;main_~cont~6 := 0;main_~i~6 := 0; {2230#true} is VALID [2019-01-31 14:58:18,822 INFO L273 TraceCheckUtils]: 1: Hoare triple {2230#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {2230#true} is VALID [2019-01-31 14:58:18,823 INFO L273 TraceCheckUtils]: 2: Hoare triple {2230#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {2230#true} is VALID [2019-01-31 14:58:18,823 INFO L273 TraceCheckUtils]: 3: Hoare triple {2230#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {2230#true} is VALID [2019-01-31 14:58:18,823 INFO L273 TraceCheckUtils]: 4: Hoare triple {2230#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {2230#true} is VALID [2019-01-31 14:58:18,823 INFO L273 TraceCheckUtils]: 5: Hoare triple {2230#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {2230#true} is VALID [2019-01-31 14:58:18,823 INFO L273 TraceCheckUtils]: 6: Hoare triple {2230#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {2230#true} is VALID [2019-01-31 14:58:18,824 INFO L273 TraceCheckUtils]: 7: Hoare triple {2230#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {2230#true} is VALID [2019-01-31 14:58:18,824 INFO L273 TraceCheckUtils]: 8: Hoare triple {2230#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {2230#true} is VALID [2019-01-31 14:58:18,824 INFO L273 TraceCheckUtils]: 9: Hoare triple {2230#true} assume !(main_~i~6 < main_~MAX~6);main_~str1~6 := main_~str1~6[main_~MAX~6 - 1 := 0];main_~j~6 := 0;main_~i~6 := main_~MAX~6 - 1; {2280#(and (= ULTIMATE.start_main_~j~6 0) (= (+ ULTIMATE.start_main_~i~6 1) ULTIMATE.start_main_~MAX~6))} is VALID [2019-01-31 14:58:18,825 INFO L273 TraceCheckUtils]: 10: Hoare triple {2280#(and (= ULTIMATE.start_main_~j~6 0) (= (+ ULTIMATE.start_main_~i~6 1) ULTIMATE.start_main_~MAX~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {2284#(and (= ULTIMATE.start_main_~j~6 1) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 2)))} is VALID [2019-01-31 14:58:18,826 INFO L273 TraceCheckUtils]: 11: Hoare triple {2284#(and (= ULTIMATE.start_main_~j~6 1) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 2)))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {2288#(and (= (+ ULTIMATE.start_main_~i~6 3) ULTIMATE.start_main_~MAX~6) (= ULTIMATE.start_main_~j~6 2))} is VALID [2019-01-31 14:58:18,826 INFO L273 TraceCheckUtils]: 12: Hoare triple {2288#(and (= (+ ULTIMATE.start_main_~i~6 3) ULTIMATE.start_main_~MAX~6) (= ULTIMATE.start_main_~j~6 2))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {2292#(and (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 4)) (= ULTIMATE.start_main_~j~6 3))} is VALID [2019-01-31 14:58:18,827 INFO L273 TraceCheckUtils]: 13: Hoare triple {2292#(and (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 4)) (= ULTIMATE.start_main_~j~6 3))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {2296#(and (= ULTIMATE.start_main_~j~6 4) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 5)))} is VALID [2019-01-31 14:58:18,828 INFO L273 TraceCheckUtils]: 14: Hoare triple {2296#(and (= ULTIMATE.start_main_~j~6 4) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 5)))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {2300#(and (= ULTIMATE.start_main_~j~6 5) (= (+ ULTIMATE.start_main_~i~6 6) ULTIMATE.start_main_~MAX~6))} is VALID [2019-01-31 14:58:18,828 INFO L273 TraceCheckUtils]: 15: Hoare triple {2300#(and (= ULTIMATE.start_main_~j~6 5) (= (+ ULTIMATE.start_main_~i~6 6) ULTIMATE.start_main_~MAX~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {2304#(and (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 7)) (= ULTIMATE.start_main_~j~6 6))} is VALID [2019-01-31 14:58:18,829 INFO L273 TraceCheckUtils]: 16: Hoare triple {2304#(and (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 7)) (= ULTIMATE.start_main_~j~6 6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {2308#(and (= ULTIMATE.start_main_~j~6 7) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 8)))} is VALID [2019-01-31 14:58:18,830 INFO L273 TraceCheckUtils]: 17: Hoare triple {2308#(and (= ULTIMATE.start_main_~j~6 7) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 8)))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {2312#(and (= (select ULTIMATE.start_main_~str1~6 0) (select ULTIMATE.start_main_~str2~6 7)) (<= 8 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 9)))} is VALID [2019-01-31 14:58:18,831 INFO L273 TraceCheckUtils]: 18: Hoare triple {2312#(and (= (select ULTIMATE.start_main_~str1~6 0) (select ULTIMATE.start_main_~str2~6 7)) (<= 8 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 9)))} assume !(main_~i~6 >= 0);main_~j~6 := main_~MAX~6 - 1;main_~i~6 := 0;assume !!(main_~i~6 < main_~MAX~6);__VERIFIER_assert_#in~cond := (if main_~str1~6[main_~i~6] == main_~str2~6[main_~j~6] then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond;assume __VERIFIER_assert_~cond == 0;assume !false; {2231#false} is VALID [2019-01-31 14:58:18,832 INFO L273 TraceCheckUtils]: 19: Hoare triple {2231#false} assume !false; {2231#false} is VALID [2019-01-31 14:58:18,833 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-01-31 14:58:18,833 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2019-01-31 14:58:18,960 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 5 [2019-01-31 14:58:18,961 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-01-31 14:58:18,973 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-31 14:58:18,973 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:22, output treesize:12 [2019-01-31 14:58:19,619 INFO L273 TraceCheckUtils]: 19: Hoare triple {2231#false} assume !false; {2231#false} is VALID [2019-01-31 14:58:19,620 INFO L273 TraceCheckUtils]: 18: Hoare triple {2322#(or (= (select ULTIMATE.start_main_~str1~6 0) (select ULTIMATE.start_main_~str2~6 (+ ULTIMATE.start_main_~MAX~6 (- 1)))) (<= 0 ULTIMATE.start_main_~i~6))} assume !(main_~i~6 >= 0);main_~j~6 := main_~MAX~6 - 1;main_~i~6 := 0;assume !!(main_~i~6 < main_~MAX~6);__VERIFIER_assert_#in~cond := (if main_~str1~6[main_~i~6] == main_~str2~6[main_~j~6] then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond;assume __VERIFIER_assert_~cond == 0;assume !false; {2231#false} is VALID [2019-01-31 14:58:19,621 INFO L273 TraceCheckUtils]: 17: Hoare triple {2326#(or (< ULTIMATE.start_main_~i~6 0) (< 0 ULTIMATE.start_main_~i~6) (= (+ ULTIMATE.start_main_~j~6 1) ULTIMATE.start_main_~MAX~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {2322#(or (= (select ULTIMATE.start_main_~str1~6 0) (select ULTIMATE.start_main_~str2~6 (+ ULTIMATE.start_main_~MAX~6 (- 1)))) (<= 0 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:58:19,621 INFO L273 TraceCheckUtils]: 16: Hoare triple {2330#(or (= (+ ULTIMATE.start_main_~j~6 2) ULTIMATE.start_main_~MAX~6) (< 1 ULTIMATE.start_main_~i~6) (< ULTIMATE.start_main_~i~6 1))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {2326#(or (< ULTIMATE.start_main_~i~6 0) (< 0 ULTIMATE.start_main_~i~6) (= (+ ULTIMATE.start_main_~j~6 1) ULTIMATE.start_main_~MAX~6))} is VALID [2019-01-31 14:58:19,634 INFO L273 TraceCheckUtils]: 15: Hoare triple {2334#(or (= (+ ULTIMATE.start_main_~j~6 3) ULTIMATE.start_main_~MAX~6) (< ULTIMATE.start_main_~i~6 2) (< 2 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {2330#(or (= (+ ULTIMATE.start_main_~j~6 2) ULTIMATE.start_main_~MAX~6) (< 1 ULTIMATE.start_main_~i~6) (< ULTIMATE.start_main_~i~6 1))} is VALID [2019-01-31 14:58:19,635 INFO L273 TraceCheckUtils]: 14: Hoare triple {2338#(or (= (+ ULTIMATE.start_main_~j~6 4) ULTIMATE.start_main_~MAX~6) (< ULTIMATE.start_main_~i~6 3) (< 3 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {2334#(or (= (+ ULTIMATE.start_main_~j~6 3) ULTIMATE.start_main_~MAX~6) (< ULTIMATE.start_main_~i~6 2) (< 2 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:58:19,636 INFO L273 TraceCheckUtils]: 13: Hoare triple {2342#(or (= (+ ULTIMATE.start_main_~j~6 5) ULTIMATE.start_main_~MAX~6) (< 4 ULTIMATE.start_main_~i~6) (< ULTIMATE.start_main_~i~6 4))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {2338#(or (= (+ ULTIMATE.start_main_~j~6 4) ULTIMATE.start_main_~MAX~6) (< ULTIMATE.start_main_~i~6 3) (< 3 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:58:19,636 INFO L273 TraceCheckUtils]: 12: Hoare triple {2346#(or (< ULTIMATE.start_main_~i~6 5) (< 5 ULTIMATE.start_main_~i~6) (= (+ ULTIMATE.start_main_~j~6 6) ULTIMATE.start_main_~MAX~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {2342#(or (= (+ ULTIMATE.start_main_~j~6 5) ULTIMATE.start_main_~MAX~6) (< 4 ULTIMATE.start_main_~i~6) (< ULTIMATE.start_main_~i~6 4))} is VALID [2019-01-31 14:58:19,638 INFO L273 TraceCheckUtils]: 11: Hoare triple {2350#(or (< ULTIMATE.start_main_~i~6 6) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 7)) (< 6 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {2346#(or (< ULTIMATE.start_main_~i~6 5) (< 5 ULTIMATE.start_main_~i~6) (= (+ ULTIMATE.start_main_~j~6 6) ULTIMATE.start_main_~MAX~6))} is VALID [2019-01-31 14:58:19,639 INFO L273 TraceCheckUtils]: 10: Hoare triple {2354#(or (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 8)) (< ULTIMATE.start_main_~i~6 7) (< 7 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {2350#(or (< ULTIMATE.start_main_~i~6 6) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 7)) (< 6 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:58:19,640 INFO L273 TraceCheckUtils]: 9: Hoare triple {2230#true} assume !(main_~i~6 < main_~MAX~6);main_~str1~6 := main_~str1~6[main_~MAX~6 - 1 := 0];main_~j~6 := 0;main_~i~6 := main_~MAX~6 - 1; {2354#(or (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 8)) (< ULTIMATE.start_main_~i~6 7) (< 7 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:58:19,640 INFO L273 TraceCheckUtils]: 8: Hoare triple {2230#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {2230#true} is VALID [2019-01-31 14:58:19,640 INFO L273 TraceCheckUtils]: 7: Hoare triple {2230#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {2230#true} is VALID [2019-01-31 14:58:19,640 INFO L273 TraceCheckUtils]: 6: Hoare triple {2230#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {2230#true} is VALID [2019-01-31 14:58:19,641 INFO L273 TraceCheckUtils]: 5: Hoare triple {2230#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {2230#true} is VALID [2019-01-31 14:58:19,641 INFO L273 TraceCheckUtils]: 4: Hoare triple {2230#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {2230#true} is VALID [2019-01-31 14:58:19,641 INFO L273 TraceCheckUtils]: 3: Hoare triple {2230#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {2230#true} is VALID [2019-01-31 14:58:19,641 INFO L273 TraceCheckUtils]: 2: Hoare triple {2230#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {2230#true} is VALID [2019-01-31 14:58:19,641 INFO L273 TraceCheckUtils]: 1: Hoare triple {2230#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {2230#true} is VALID [2019-01-31 14:58:19,642 INFO L273 TraceCheckUtils]: 0: Hoare triple {2230#true} havoc main_#res;havoc main_#t~nondet0, main_#t~nondet2, main_#t~post1, main_#t~post4, main_#t~post3, main_#t~post6, main_#t~post5, main_~MAX~6, main_~str1~6, main_~str2~6, main_~cont~6, main_~i~6, main_~j~6;main_~MAX~6 := (if main_#t~nondet0 % 4294967296 % 4294967296 <= 2147483647 then main_#t~nondet0 % 4294967296 % 4294967296 else main_#t~nondet0 % 4294967296 % 4294967296 - 4294967296);havoc main_#t~nondet0;havoc main_~str1~6;havoc main_~str2~6;havoc main_~cont~6;havoc main_~i~6;havoc main_~j~6;main_~cont~6 := 0;main_~i~6 := 0; {2230#true} is VALID [2019-01-31 14:58:19,643 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-01-31 14:58:19,661 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-01-31 14:58:19,661 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 11, 11] total 38 [2019-01-31 14:58:19,661 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-01-31 14:58:19,662 INFO L78 Accepts]: Start accepts. Automaton has 29 states. Word has length 20 [2019-01-31 14:58:19,662 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-01-31 14:58:19,662 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 29 states. [2019-01-31 14:58:19,693 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 32 edges. 32 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-01-31 14:58:19,694 INFO L459 AbstractCegarLoop]: Interpolant automaton has 29 states [2019-01-31 14:58:19,694 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2019-01-31 14:58:19,695 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=218, Invalid=1188, Unknown=0, NotChecked=0, Total=1406 [2019-01-31 14:58:19,695 INFO L87 Difference]: Start difference. First operand 21 states and 22 transitions. Second operand 29 states. [2019-01-31 14:58:21,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 14:58:21,882 INFO L93 Difference]: Finished difference Result 35 states and 39 transitions. [2019-01-31 14:58:21,882 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2019-01-31 14:58:21,882 INFO L78 Accepts]: Start accepts. Automaton has 29 states. Word has length 20 [2019-01-31 14:58:21,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-31 14:58:21,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2019-01-31 14:58:21,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 39 transitions. [2019-01-31 14:58:21,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2019-01-31 14:58:21,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 39 transitions. [2019-01-31 14:58:21,885 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 32 states and 39 transitions. [2019-01-31 14:58:21,937 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 39 edges. 39 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-01-31 14:58:21,937 INFO L225 Difference]: With dead ends: 35 [2019-01-31 14:58:21,937 INFO L226 Difference]: Without dead ends: 23 [2019-01-31 14:58:21,939 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 208 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=403, Invalid=2147, Unknown=0, NotChecked=0, Total=2550 [2019-01-31 14:58:21,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2019-01-31 14:58:22,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2019-01-31 14:58:22,110 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-01-31 14:58:22,110 INFO L82 GeneralOperation]: Start isEquivalent. First operand 23 states. Second operand 23 states. [2019-01-31 14:58:22,110 INFO L74 IsIncluded]: Start isIncluded. First operand 23 states. Second operand 23 states. [2019-01-31 14:58:22,111 INFO L87 Difference]: Start difference. First operand 23 states. Second operand 23 states. [2019-01-31 14:58:22,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 14:58:22,112 INFO L93 Difference]: Finished difference Result 23 states and 24 transitions. [2019-01-31 14:58:22,112 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 24 transitions. [2019-01-31 14:58:22,112 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-31 14:58:22,113 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-01-31 14:58:22,113 INFO L74 IsIncluded]: Start isIncluded. First operand 23 states. Second operand 23 states. [2019-01-31 14:58:22,113 INFO L87 Difference]: Start difference. First operand 23 states. Second operand 23 states. [2019-01-31 14:58:22,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 14:58:22,114 INFO L93 Difference]: Finished difference Result 23 states and 24 transitions. [2019-01-31 14:58:22,114 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 24 transitions. [2019-01-31 14:58:22,114 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-31 14:58:22,114 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-01-31 14:58:22,114 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-01-31 14:58:22,114 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-01-31 14:58:22,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2019-01-31 14:58:22,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 24 transitions. [2019-01-31 14:58:22,115 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 24 transitions. Word has length 20 [2019-01-31 14:58:22,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-31 14:58:22,116 INFO L480 AbstractCegarLoop]: Abstraction has 23 states and 24 transitions. [2019-01-31 14:58:22,116 INFO L481 AbstractCegarLoop]: Interpolant automaton has 29 states. [2019-01-31 14:58:22,116 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 24 transitions. [2019-01-31 14:58:22,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-01-31 14:58:22,116 INFO L394 BasicCegarLoop]: Found error trace [2019-01-31 14:58:22,116 INFO L402 BasicCegarLoop]: trace histogram [9, 9, 1, 1, 1, 1] [2019-01-31 14:58:22,117 INFO L423 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2019-01-31 14:58:22,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-31 14:58:22,117 INFO L82 PathProgramCache]: Analyzing trace with hash -317821643, now seen corresponding path program 13 times [2019-01-31 14:58:22,117 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-01-31 14:58:22,118 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-31 14:58:22,118 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-01-31 14:58:22,118 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-31 14:58:22,118 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-01-31 14:58:22,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-31 14:58:22,619 INFO L273 TraceCheckUtils]: 0: Hoare triple {2567#true} havoc main_#res;havoc main_#t~nondet0, main_#t~nondet2, main_#t~post1, main_#t~post4, main_#t~post3, main_#t~post6, main_#t~post5, main_~MAX~6, main_~str1~6, main_~str2~6, main_~cont~6, main_~i~6, main_~j~6;main_~MAX~6 := (if main_#t~nondet0 % 4294967296 % 4294967296 <= 2147483647 then main_#t~nondet0 % 4294967296 % 4294967296 else main_#t~nondet0 % 4294967296 % 4294967296 - 4294967296);havoc main_#t~nondet0;havoc main_~str1~6;havoc main_~str2~6;havoc main_~cont~6;havoc main_~i~6;havoc main_~j~6;main_~cont~6 := 0;main_~i~6 := 0; {2569#(and (<= ULTIMATE.start_main_~i~6 0) (<= 0 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:58:22,620 INFO L273 TraceCheckUtils]: 1: Hoare triple {2569#(and (<= ULTIMATE.start_main_~i~6 0) (<= 0 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {2570#(and (<= ULTIMATE.start_main_~i~6 1) (<= 1 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:58:22,621 INFO L273 TraceCheckUtils]: 2: Hoare triple {2570#(and (<= ULTIMATE.start_main_~i~6 1) (<= 1 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {2571#(and (<= ULTIMATE.start_main_~i~6 2) (<= 2 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:58:22,622 INFO L273 TraceCheckUtils]: 3: Hoare triple {2571#(and (<= ULTIMATE.start_main_~i~6 2) (<= 2 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {2572#(and (<= 3 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 3))} is VALID [2019-01-31 14:58:22,623 INFO L273 TraceCheckUtils]: 4: Hoare triple {2572#(and (<= 3 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 3))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {2573#(and (<= ULTIMATE.start_main_~i~6 4) (<= 4 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:58:22,624 INFO L273 TraceCheckUtils]: 5: Hoare triple {2573#(and (<= ULTIMATE.start_main_~i~6 4) (<= 4 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {2574#(and (<= 5 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 5))} is VALID [2019-01-31 14:58:22,625 INFO L273 TraceCheckUtils]: 6: Hoare triple {2574#(and (<= 5 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 5))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {2575#(and (<= ULTIMATE.start_main_~i~6 6) (<= 6 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:58:22,626 INFO L273 TraceCheckUtils]: 7: Hoare triple {2575#(and (<= ULTIMATE.start_main_~i~6 6) (<= 6 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {2576#(and (<= 7 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 7))} is VALID [2019-01-31 14:58:22,627 INFO L273 TraceCheckUtils]: 8: Hoare triple {2576#(and (<= 7 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 7))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {2577#(or (and (<= ULTIMATE.start_main_~i~6 8) (<= 8 ULTIMATE.start_main_~i~6)) (not (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 1))))} is VALID [2019-01-31 14:58:22,628 INFO L273 TraceCheckUtils]: 9: Hoare triple {2577#(or (and (<= ULTIMATE.start_main_~i~6 8) (<= 8 ULTIMATE.start_main_~i~6)) (not (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 1))))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {2578#(or (<= (+ ULTIMATE.start_main_~i~6 1) ULTIMATE.start_main_~MAX~6) (= 9 ULTIMATE.start_main_~MAX~6))} is VALID [2019-01-31 14:58:22,629 INFO L273 TraceCheckUtils]: 10: Hoare triple {2578#(or (<= (+ ULTIMATE.start_main_~i~6 1) ULTIMATE.start_main_~MAX~6) (= 9 ULTIMATE.start_main_~MAX~6))} assume !(main_~i~6 < main_~MAX~6);main_~str1~6 := main_~str1~6[main_~MAX~6 - 1 := 0];main_~j~6 := 0;main_~i~6 := main_~MAX~6 - 1; {2579#(= (+ ULTIMATE.start_main_~j~6 9) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:58:22,630 INFO L273 TraceCheckUtils]: 11: Hoare triple {2579#(= (+ ULTIMATE.start_main_~j~6 9) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {2580#(= (+ ULTIMATE.start_main_~j~6 8) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:58:22,631 INFO L273 TraceCheckUtils]: 12: Hoare triple {2580#(= (+ ULTIMATE.start_main_~j~6 8) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {2581#(= (+ ULTIMATE.start_main_~j~6 7) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:58:22,632 INFO L273 TraceCheckUtils]: 13: Hoare triple {2581#(= (+ ULTIMATE.start_main_~j~6 7) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {2582#(= (+ ULTIMATE.start_main_~j~6 6) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:58:22,633 INFO L273 TraceCheckUtils]: 14: Hoare triple {2582#(= (+ ULTIMATE.start_main_~j~6 6) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {2583#(= (+ ULTIMATE.start_main_~j~6 5) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:58:22,634 INFO L273 TraceCheckUtils]: 15: Hoare triple {2583#(= (+ ULTIMATE.start_main_~j~6 5) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {2584#(= (+ ULTIMATE.start_main_~j~6 4) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:58:22,635 INFO L273 TraceCheckUtils]: 16: Hoare triple {2584#(= (+ ULTIMATE.start_main_~j~6 4) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {2585#(= (+ ULTIMATE.start_main_~j~6 3) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:58:22,636 INFO L273 TraceCheckUtils]: 17: Hoare triple {2585#(= (+ ULTIMATE.start_main_~j~6 3) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {2586#(= (+ ULTIMATE.start_main_~j~6 2) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:58:22,637 INFO L273 TraceCheckUtils]: 18: Hoare triple {2586#(= (+ ULTIMATE.start_main_~j~6 2) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {2587#(= (+ ULTIMATE.start_main_~j~6 1) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:58:22,638 INFO L273 TraceCheckUtils]: 19: Hoare triple {2587#(= (+ ULTIMATE.start_main_~j~6 1) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {2588#(= (select ULTIMATE.start_main_~str1~6 0) (select ULTIMATE.start_main_~str2~6 (+ ULTIMATE.start_main_~MAX~6 (- 1))))} is VALID [2019-01-31 14:58:22,640 INFO L273 TraceCheckUtils]: 20: Hoare triple {2588#(= (select ULTIMATE.start_main_~str1~6 0) (select ULTIMATE.start_main_~str2~6 (+ ULTIMATE.start_main_~MAX~6 (- 1))))} assume !(main_~i~6 >= 0);main_~j~6 := main_~MAX~6 - 1;main_~i~6 := 0;assume !!(main_~i~6 < main_~MAX~6);__VERIFIER_assert_#in~cond := (if main_~str1~6[main_~i~6] == main_~str2~6[main_~j~6] then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond;assume __VERIFIER_assert_~cond == 0;assume !false; {2568#false} is VALID [2019-01-31 14:58:22,640 INFO L273 TraceCheckUtils]: 21: Hoare triple {2568#false} assume !false; {2568#false} is VALID [2019-01-31 14:58:22,641 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 0 proven. 90 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-31 14:58:22,641 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-31 14:58:22,642 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-01-31 14:58:22,642 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-01-31 14:58:22,642 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-01-31 14:58:22,642 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-31 14:58:22,642 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-01-31 14:58:22,651 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-31 14:58:22,651 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2019-01-31 14:58:22,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-31 14:58:22,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-31 14:58:22,683 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-31 14:58:23,103 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2019-01-31 14:58:23,104 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-01-31 14:58:23,109 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-31 14:58:23,110 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:15, output treesize:14 [2019-01-31 14:58:23,112 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-01-31 14:58:23,112 WARN L398 uantifierElimination]: Input elimination task: ∃ [v_ULTIMATE.start_main_~str2~6_67]. (and (= ULTIMATE.start_main_~str2~6 (store v_ULTIMATE.start_main_~str2~6_67 8 (select ULTIMATE.start_main_~str1~6 0))) (<= ULTIMATE.start_main_~MAX~6 9) (<= 9 ULTIMATE.start_main_~MAX~6)) [2019-01-31 14:58:23,113 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (and (<= ULTIMATE.start_main_~MAX~6 9) (<= 9 ULTIMATE.start_main_~MAX~6) (= (select ULTIMATE.start_main_~str1~6 0) (select ULTIMATE.start_main_~str2~6 8))) [2019-01-31 14:58:23,159 INFO L273 TraceCheckUtils]: 0: Hoare triple {2567#true} havoc main_#res;havoc main_#t~nondet0, main_#t~nondet2, main_#t~post1, main_#t~post4, main_#t~post3, main_#t~post6, main_#t~post5, main_~MAX~6, main_~str1~6, main_~str2~6, main_~cont~6, main_~i~6, main_~j~6;main_~MAX~6 := (if main_#t~nondet0 % 4294967296 % 4294967296 <= 2147483647 then main_#t~nondet0 % 4294967296 % 4294967296 else main_#t~nondet0 % 4294967296 % 4294967296 - 4294967296);havoc main_#t~nondet0;havoc main_~str1~6;havoc main_~str2~6;havoc main_~cont~6;havoc main_~i~6;havoc main_~j~6;main_~cont~6 := 0;main_~i~6 := 0; {2569#(and (<= ULTIMATE.start_main_~i~6 0) (<= 0 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:58:23,160 INFO L273 TraceCheckUtils]: 1: Hoare triple {2569#(and (<= ULTIMATE.start_main_~i~6 0) (<= 0 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {2570#(and (<= ULTIMATE.start_main_~i~6 1) (<= 1 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:58:23,161 INFO L273 TraceCheckUtils]: 2: Hoare triple {2570#(and (<= ULTIMATE.start_main_~i~6 1) (<= 1 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {2571#(and (<= ULTIMATE.start_main_~i~6 2) (<= 2 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:58:23,161 INFO L273 TraceCheckUtils]: 3: Hoare triple {2571#(and (<= ULTIMATE.start_main_~i~6 2) (<= 2 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {2572#(and (<= 3 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 3))} is VALID [2019-01-31 14:58:23,162 INFO L273 TraceCheckUtils]: 4: Hoare triple {2572#(and (<= 3 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 3))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {2573#(and (<= ULTIMATE.start_main_~i~6 4) (<= 4 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:58:23,163 INFO L273 TraceCheckUtils]: 5: Hoare triple {2573#(and (<= ULTIMATE.start_main_~i~6 4) (<= 4 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {2574#(and (<= 5 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 5))} is VALID [2019-01-31 14:58:23,164 INFO L273 TraceCheckUtils]: 6: Hoare triple {2574#(and (<= 5 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 5))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {2575#(and (<= ULTIMATE.start_main_~i~6 6) (<= 6 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:58:23,165 INFO L273 TraceCheckUtils]: 7: Hoare triple {2575#(and (<= ULTIMATE.start_main_~i~6 6) (<= 6 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {2576#(and (<= 7 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 7))} is VALID [2019-01-31 14:58:23,166 INFO L273 TraceCheckUtils]: 8: Hoare triple {2576#(and (<= 7 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 7))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {2616#(and (<= ULTIMATE.start_main_~i~6 8) (<= 8 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:58:23,167 INFO L273 TraceCheckUtils]: 9: Hoare triple {2616#(and (<= ULTIMATE.start_main_~i~6 8) (<= 8 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {2620#(and (<= ULTIMATE.start_main_~i~6 9) (<= 9 ULTIMATE.start_main_~MAX~6))} is VALID [2019-01-31 14:58:23,168 INFO L273 TraceCheckUtils]: 10: Hoare triple {2620#(and (<= ULTIMATE.start_main_~i~6 9) (<= 9 ULTIMATE.start_main_~MAX~6))} assume !(main_~i~6 < main_~MAX~6);main_~str1~6 := main_~str1~6[main_~MAX~6 - 1 := 0];main_~j~6 := 0;main_~i~6 := main_~MAX~6 - 1; {2624#(and (<= ULTIMATE.start_main_~MAX~6 9) (<= 9 ULTIMATE.start_main_~MAX~6) (= ULTIMATE.start_main_~j~6 0))} is VALID [2019-01-31 14:58:23,169 INFO L273 TraceCheckUtils]: 11: Hoare triple {2624#(and (<= ULTIMATE.start_main_~MAX~6 9) (<= 9 ULTIMATE.start_main_~MAX~6) (= ULTIMATE.start_main_~j~6 0))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {2628#(and (<= ULTIMATE.start_main_~MAX~6 9) (<= 9 ULTIMATE.start_main_~MAX~6) (= ULTIMATE.start_main_~j~6 1))} is VALID [2019-01-31 14:58:23,170 INFO L273 TraceCheckUtils]: 12: Hoare triple {2628#(and (<= ULTIMATE.start_main_~MAX~6 9) (<= 9 ULTIMATE.start_main_~MAX~6) (= ULTIMATE.start_main_~j~6 1))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {2632#(and (<= ULTIMATE.start_main_~MAX~6 9) (<= 9 ULTIMATE.start_main_~MAX~6) (= ULTIMATE.start_main_~j~6 2))} is VALID [2019-01-31 14:58:23,189 INFO L273 TraceCheckUtils]: 13: Hoare triple {2632#(and (<= ULTIMATE.start_main_~MAX~6 9) (<= 9 ULTIMATE.start_main_~MAX~6) (= ULTIMATE.start_main_~j~6 2))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {2636#(and (<= ULTIMATE.start_main_~MAX~6 9) (<= 9 ULTIMATE.start_main_~MAX~6) (= ULTIMATE.start_main_~j~6 3))} is VALID [2019-01-31 14:58:23,190 INFO L273 TraceCheckUtils]: 14: Hoare triple {2636#(and (<= ULTIMATE.start_main_~MAX~6 9) (<= 9 ULTIMATE.start_main_~MAX~6) (= ULTIMATE.start_main_~j~6 3))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {2640#(and (<= ULTIMATE.start_main_~MAX~6 9) (<= 9 ULTIMATE.start_main_~MAX~6) (= ULTIMATE.start_main_~j~6 4))} is VALID [2019-01-31 14:58:23,191 INFO L273 TraceCheckUtils]: 15: Hoare triple {2640#(and (<= ULTIMATE.start_main_~MAX~6 9) (<= 9 ULTIMATE.start_main_~MAX~6) (= ULTIMATE.start_main_~j~6 4))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {2644#(and (<= ULTIMATE.start_main_~MAX~6 9) (= ULTIMATE.start_main_~j~6 5) (<= 9 ULTIMATE.start_main_~MAX~6))} is VALID [2019-01-31 14:58:23,192 INFO L273 TraceCheckUtils]: 16: Hoare triple {2644#(and (<= ULTIMATE.start_main_~MAX~6 9) (= ULTIMATE.start_main_~j~6 5) (<= 9 ULTIMATE.start_main_~MAX~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {2648#(and (<= ULTIMATE.start_main_~MAX~6 9) (<= 9 ULTIMATE.start_main_~MAX~6) (= ULTIMATE.start_main_~j~6 6))} is VALID [2019-01-31 14:58:23,192 INFO L273 TraceCheckUtils]: 17: Hoare triple {2648#(and (<= ULTIMATE.start_main_~MAX~6 9) (<= 9 ULTIMATE.start_main_~MAX~6) (= ULTIMATE.start_main_~j~6 6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {2652#(and (= ULTIMATE.start_main_~j~6 7) (<= ULTIMATE.start_main_~MAX~6 9) (<= 9 ULTIMATE.start_main_~MAX~6))} is VALID [2019-01-31 14:58:23,193 INFO L273 TraceCheckUtils]: 18: Hoare triple {2652#(and (= ULTIMATE.start_main_~j~6 7) (<= ULTIMATE.start_main_~MAX~6 9) (<= 9 ULTIMATE.start_main_~MAX~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {2656#(and (<= ULTIMATE.start_main_~MAX~6 9) (<= 9 ULTIMATE.start_main_~MAX~6) (= ULTIMATE.start_main_~j~6 8))} is VALID [2019-01-31 14:58:23,194 INFO L273 TraceCheckUtils]: 19: Hoare triple {2656#(and (<= ULTIMATE.start_main_~MAX~6 9) (<= 9 ULTIMATE.start_main_~MAX~6) (= ULTIMATE.start_main_~j~6 8))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {2660#(and (<= ULTIMATE.start_main_~MAX~6 9) (<= 9 ULTIMATE.start_main_~MAX~6) (= (select ULTIMATE.start_main_~str1~6 0) (select ULTIMATE.start_main_~str2~6 8)))} is VALID [2019-01-31 14:58:23,195 INFO L273 TraceCheckUtils]: 20: Hoare triple {2660#(and (<= ULTIMATE.start_main_~MAX~6 9) (<= 9 ULTIMATE.start_main_~MAX~6) (= (select ULTIMATE.start_main_~str1~6 0) (select ULTIMATE.start_main_~str2~6 8)))} assume !(main_~i~6 >= 0);main_~j~6 := main_~MAX~6 - 1;main_~i~6 := 0;assume !!(main_~i~6 < main_~MAX~6);__VERIFIER_assert_#in~cond := (if main_~str1~6[main_~i~6] == main_~str2~6[main_~j~6] then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond;assume __VERIFIER_assert_~cond == 0;assume !false; {2568#false} is VALID [2019-01-31 14:58:23,195 INFO L273 TraceCheckUtils]: 21: Hoare triple {2568#false} assume !false; {2568#false} is VALID [2019-01-31 14:58:23,198 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 0 proven. 90 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-31 14:58:23,198 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2019-01-31 14:58:23,230 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 5 [2019-01-31 14:58:23,231 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-01-31 14:58:23,235 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-31 14:58:23,236 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:14, output treesize:5 [2019-01-31 14:58:23,238 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-01-31 14:58:23,238 WARN L398 uantifierElimination]: Input elimination task: ∀ [ULTIMATE.start_main_~str2~6, ULTIMATE.start_main_~str1~6]. (let ((.cse0 (select ULTIMATE.start_main_~str1~6 0))) (= .cse0 (select (store ULTIMATE.start_main_~str2~6 ULTIMATE.start_main_~j~6 .cse0) (+ ULTIMATE.start_main_~MAX~6 (- 1))))) [2019-01-31 14:58:23,238 WARN L399 uantifierElimination]: ElimStorePlain result: ∀ []. (= (+ ULTIMATE.start_main_~j~6 1) ULTIMATE.start_main_~MAX~6) [2019-01-31 14:58:23,389 INFO L273 TraceCheckUtils]: 21: Hoare triple {2568#false} assume !false; {2568#false} is VALID [2019-01-31 14:58:23,391 INFO L273 TraceCheckUtils]: 20: Hoare triple {2588#(= (select ULTIMATE.start_main_~str1~6 0) (select ULTIMATE.start_main_~str2~6 (+ ULTIMATE.start_main_~MAX~6 (- 1))))} assume !(main_~i~6 >= 0);main_~j~6 := main_~MAX~6 - 1;main_~i~6 := 0;assume !!(main_~i~6 < main_~MAX~6);__VERIFIER_assert_#in~cond := (if main_~str1~6[main_~i~6] == main_~str2~6[main_~j~6] then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond;assume __VERIFIER_assert_~cond == 0;assume !false; {2568#false} is VALID [2019-01-31 14:58:23,392 INFO L273 TraceCheckUtils]: 19: Hoare triple {2587#(= (+ ULTIMATE.start_main_~j~6 1) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {2588#(= (select ULTIMATE.start_main_~str1~6 0) (select ULTIMATE.start_main_~str2~6 (+ ULTIMATE.start_main_~MAX~6 (- 1))))} is VALID [2019-01-31 14:58:23,393 INFO L273 TraceCheckUtils]: 18: Hoare triple {2586#(= (+ ULTIMATE.start_main_~j~6 2) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {2587#(= (+ ULTIMATE.start_main_~j~6 1) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:58:23,394 INFO L273 TraceCheckUtils]: 17: Hoare triple {2585#(= (+ ULTIMATE.start_main_~j~6 3) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {2586#(= (+ ULTIMATE.start_main_~j~6 2) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:58:23,395 INFO L273 TraceCheckUtils]: 16: Hoare triple {2584#(= (+ ULTIMATE.start_main_~j~6 4) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {2585#(= (+ ULTIMATE.start_main_~j~6 3) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:58:23,396 INFO L273 TraceCheckUtils]: 15: Hoare triple {2583#(= (+ ULTIMATE.start_main_~j~6 5) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {2584#(= (+ ULTIMATE.start_main_~j~6 4) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:58:23,397 INFO L273 TraceCheckUtils]: 14: Hoare triple {2582#(= (+ ULTIMATE.start_main_~j~6 6) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {2583#(= (+ ULTIMATE.start_main_~j~6 5) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:58:23,398 INFO L273 TraceCheckUtils]: 13: Hoare triple {2581#(= (+ ULTIMATE.start_main_~j~6 7) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {2582#(= (+ ULTIMATE.start_main_~j~6 6) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:58:23,399 INFO L273 TraceCheckUtils]: 12: Hoare triple {2580#(= (+ ULTIMATE.start_main_~j~6 8) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {2581#(= (+ ULTIMATE.start_main_~j~6 7) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:58:23,399 INFO L273 TraceCheckUtils]: 11: Hoare triple {2579#(= (+ ULTIMATE.start_main_~j~6 9) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {2580#(= (+ ULTIMATE.start_main_~j~6 8) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:58:23,400 INFO L273 TraceCheckUtils]: 10: Hoare triple {2578#(or (<= (+ ULTIMATE.start_main_~i~6 1) ULTIMATE.start_main_~MAX~6) (= 9 ULTIMATE.start_main_~MAX~6))} assume !(main_~i~6 < main_~MAX~6);main_~str1~6 := main_~str1~6[main_~MAX~6 - 1 := 0];main_~j~6 := 0;main_~i~6 := main_~MAX~6 - 1; {2579#(= (+ ULTIMATE.start_main_~j~6 9) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:58:23,402 INFO L273 TraceCheckUtils]: 9: Hoare triple {2616#(and (<= ULTIMATE.start_main_~i~6 8) (<= 8 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {2578#(or (<= (+ ULTIMATE.start_main_~i~6 1) ULTIMATE.start_main_~MAX~6) (= 9 ULTIMATE.start_main_~MAX~6))} is VALID [2019-01-31 14:58:23,402 INFO L273 TraceCheckUtils]: 8: Hoare triple {2576#(and (<= 7 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 7))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {2616#(and (<= ULTIMATE.start_main_~i~6 8) (<= 8 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:58:23,403 INFO L273 TraceCheckUtils]: 7: Hoare triple {2575#(and (<= ULTIMATE.start_main_~i~6 6) (<= 6 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {2576#(and (<= 7 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 7))} is VALID [2019-01-31 14:58:23,404 INFO L273 TraceCheckUtils]: 6: Hoare triple {2574#(and (<= 5 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 5))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {2575#(and (<= ULTIMATE.start_main_~i~6 6) (<= 6 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:58:23,405 INFO L273 TraceCheckUtils]: 5: Hoare triple {2573#(and (<= ULTIMATE.start_main_~i~6 4) (<= 4 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {2574#(and (<= 5 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 5))} is VALID [2019-01-31 14:58:23,406 INFO L273 TraceCheckUtils]: 4: Hoare triple {2572#(and (<= 3 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 3))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {2573#(and (<= ULTIMATE.start_main_~i~6 4) (<= 4 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:58:23,407 INFO L273 TraceCheckUtils]: 3: Hoare triple {2571#(and (<= ULTIMATE.start_main_~i~6 2) (<= 2 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {2572#(and (<= 3 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 3))} is VALID [2019-01-31 14:58:23,408 INFO L273 TraceCheckUtils]: 2: Hoare triple {2570#(and (<= ULTIMATE.start_main_~i~6 1) (<= 1 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {2571#(and (<= ULTIMATE.start_main_~i~6 2) (<= 2 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:58:23,409 INFO L273 TraceCheckUtils]: 1: Hoare triple {2569#(and (<= ULTIMATE.start_main_~i~6 0) (<= 0 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {2570#(and (<= ULTIMATE.start_main_~i~6 1) (<= 1 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:58:23,410 INFO L273 TraceCheckUtils]: 0: Hoare triple {2567#true} havoc main_#res;havoc main_#t~nondet0, main_#t~nondet2, main_#t~post1, main_#t~post4, main_#t~post3, main_#t~post6, main_#t~post5, main_~MAX~6, main_~str1~6, main_~str2~6, main_~cont~6, main_~i~6, main_~j~6;main_~MAX~6 := (if main_#t~nondet0 % 4294967296 % 4294967296 <= 2147483647 then main_#t~nondet0 % 4294967296 % 4294967296 else main_#t~nondet0 % 4294967296 % 4294967296 - 4294967296);havoc main_#t~nondet0;havoc main_~str1~6;havoc main_~str2~6;havoc main_~cont~6;havoc main_~i~6;havoc main_~j~6;main_~cont~6 := 0;main_~i~6 := 0; {2569#(and (<= ULTIMATE.start_main_~i~6 0) (<= 0 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:58:23,412 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 0 proven. 90 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-31 14:58:23,430 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-01-31 14:58:23,430 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 21, 21] total 33 [2019-01-31 14:58:23,430 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-01-31 14:58:23,431 INFO L78 Accepts]: Start accepts. Automaton has 34 states. Word has length 22 [2019-01-31 14:58:23,431 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-01-31 14:58:23,431 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 34 states. [2019-01-31 14:58:23,464 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 35 edges. 35 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-01-31 14:58:23,465 INFO L459 AbstractCegarLoop]: Interpolant automaton has 34 states [2019-01-31 14:58:23,465 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2019-01-31 14:58:23,465 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=1025, Unknown=0, NotChecked=0, Total=1122 [2019-01-31 14:58:23,466 INFO L87 Difference]: Start difference. First operand 23 states and 24 transitions. Second operand 34 states. [2019-01-31 14:58:25,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 14:58:25,879 INFO L93 Difference]: Finished difference Result 36 states and 38 transitions. [2019-01-31 14:58:25,880 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2019-01-31 14:58:25,880 INFO L78 Accepts]: Start accepts. Automaton has 34 states. Word has length 22 [2019-01-31 14:58:25,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-31 14:58:25,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2019-01-31 14:58:25,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 30 transitions. [2019-01-31 14:58:25,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2019-01-31 14:58:25,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 30 transitions. [2019-01-31 14:58:25,882 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 25 states and 30 transitions. [2019-01-31 14:58:25,918 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 30 edges. 30 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-01-31 14:58:25,919 INFO L225 Difference]: With dead ends: 36 [2019-01-31 14:58:25,919 INFO L226 Difference]: Without dead ends: 24 [2019-01-31 14:58:25,921 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 25 SyntacticMatches, 6 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 291 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=206, Invalid=1864, Unknown=0, NotChecked=0, Total=2070 [2019-01-31 14:58:25,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2019-01-31 14:58:26,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2019-01-31 14:58:26,129 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-01-31 14:58:26,129 INFO L82 GeneralOperation]: Start isEquivalent. First operand 24 states. Second operand 24 states. [2019-01-31 14:58:26,129 INFO L74 IsIncluded]: Start isIncluded. First operand 24 states. Second operand 24 states. [2019-01-31 14:58:26,129 INFO L87 Difference]: Start difference. First operand 24 states. Second operand 24 states. [2019-01-31 14:58:26,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 14:58:26,130 INFO L93 Difference]: Finished difference Result 24 states and 25 transitions. [2019-01-31 14:58:26,131 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 25 transitions. [2019-01-31 14:58:26,131 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-31 14:58:26,131 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-01-31 14:58:26,131 INFO L74 IsIncluded]: Start isIncluded. First operand 24 states. Second operand 24 states. [2019-01-31 14:58:26,131 INFO L87 Difference]: Start difference. First operand 24 states. Second operand 24 states. [2019-01-31 14:58:26,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 14:58:26,132 INFO L93 Difference]: Finished difference Result 24 states and 25 transitions. [2019-01-31 14:58:26,132 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 25 transitions. [2019-01-31 14:58:26,132 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-31 14:58:26,133 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-01-31 14:58:26,133 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-01-31 14:58:26,133 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-01-31 14:58:26,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2019-01-31 14:58:26,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 25 transitions. [2019-01-31 14:58:26,133 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 25 transitions. Word has length 22 [2019-01-31 14:58:26,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-31 14:58:26,134 INFO L480 AbstractCegarLoop]: Abstraction has 24 states and 25 transitions. [2019-01-31 14:58:26,134 INFO L481 AbstractCegarLoop]: Interpolant automaton has 34 states. [2019-01-31 14:58:26,134 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 25 transitions. [2019-01-31 14:58:26,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2019-01-31 14:58:26,134 INFO L394 BasicCegarLoop]: Found error trace [2019-01-31 14:58:26,134 INFO L402 BasicCegarLoop]: trace histogram [10, 9, 1, 1, 1, 1] [2019-01-31 14:58:26,134 INFO L423 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2019-01-31 14:58:26,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-31 14:58:26,135 INFO L82 PathProgramCache]: Analyzing trace with hash 1283882284, now seen corresponding path program 14 times [2019-01-31 14:58:26,135 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-01-31 14:58:26,135 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-31 14:58:26,135 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-31 14:58:26,135 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-31 14:58:26,135 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-01-31 14:58:26,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-31 14:58:27,173 INFO L273 TraceCheckUtils]: 0: Hoare triple {2916#true} havoc main_#res;havoc main_#t~nondet0, main_#t~nondet2, main_#t~post1, main_#t~post4, main_#t~post3, main_#t~post6, main_#t~post5, main_~MAX~6, main_~str1~6, main_~str2~6, main_~cont~6, main_~i~6, main_~j~6;main_~MAX~6 := (if main_#t~nondet0 % 4294967296 % 4294967296 <= 2147483647 then main_#t~nondet0 % 4294967296 % 4294967296 else main_#t~nondet0 % 4294967296 % 4294967296 - 4294967296);havoc main_#t~nondet0;havoc main_~str1~6;havoc main_~str2~6;havoc main_~cont~6;havoc main_~i~6;havoc main_~j~6;main_~cont~6 := 0;main_~i~6 := 0; {2918#(<= 0 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:27,174 INFO L273 TraceCheckUtils]: 1: Hoare triple {2918#(<= 0 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {2919#(<= 1 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:27,175 INFO L273 TraceCheckUtils]: 2: Hoare triple {2919#(<= 1 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {2920#(<= 2 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:27,176 INFO L273 TraceCheckUtils]: 3: Hoare triple {2920#(<= 2 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {2921#(<= 3 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:27,177 INFO L273 TraceCheckUtils]: 4: Hoare triple {2921#(<= 3 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {2922#(<= 4 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:27,178 INFO L273 TraceCheckUtils]: 5: Hoare triple {2922#(<= 4 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {2923#(<= 5 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:27,178 INFO L273 TraceCheckUtils]: 6: Hoare triple {2923#(<= 5 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {2924#(<= 6 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:27,179 INFO L273 TraceCheckUtils]: 7: Hoare triple {2924#(<= 6 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {2925#(<= 7 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:27,180 INFO L273 TraceCheckUtils]: 8: Hoare triple {2925#(<= 7 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {2926#(<= 8 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:27,181 INFO L273 TraceCheckUtils]: 9: Hoare triple {2926#(<= 8 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {2927#(<= 9 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:27,182 INFO L273 TraceCheckUtils]: 10: Hoare triple {2927#(<= 9 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {2928#(<= 10 ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:58:27,183 INFO L273 TraceCheckUtils]: 11: Hoare triple {2928#(<= 10 ULTIMATE.start_main_~MAX~6)} assume !(main_~i~6 < main_~MAX~6);main_~str1~6 := main_~str1~6[main_~MAX~6 - 1 := 0];main_~j~6 := 0;main_~i~6 := main_~MAX~6 - 1; {2927#(<= 9 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:27,184 INFO L273 TraceCheckUtils]: 12: Hoare triple {2927#(<= 9 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {2926#(<= 8 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:27,185 INFO L273 TraceCheckUtils]: 13: Hoare triple {2926#(<= 8 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {2925#(<= 7 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:27,186 INFO L273 TraceCheckUtils]: 14: Hoare triple {2925#(<= 7 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {2924#(<= 6 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:27,187 INFO L273 TraceCheckUtils]: 15: Hoare triple {2924#(<= 6 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {2923#(<= 5 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:27,188 INFO L273 TraceCheckUtils]: 16: Hoare triple {2923#(<= 5 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {2922#(<= 4 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:27,189 INFO L273 TraceCheckUtils]: 17: Hoare triple {2922#(<= 4 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {2921#(<= 3 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:27,189 INFO L273 TraceCheckUtils]: 18: Hoare triple {2921#(<= 3 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {2920#(<= 2 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:27,190 INFO L273 TraceCheckUtils]: 19: Hoare triple {2920#(<= 2 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {2919#(<= 1 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:27,191 INFO L273 TraceCheckUtils]: 20: Hoare triple {2919#(<= 1 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {2918#(<= 0 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:27,192 INFO L273 TraceCheckUtils]: 21: Hoare triple {2918#(<= 0 ULTIMATE.start_main_~i~6)} assume !(main_~i~6 >= 0);main_~j~6 := main_~MAX~6 - 1;main_~i~6 := 0;assume !!(main_~i~6 < main_~MAX~6);__VERIFIER_assert_#in~cond := (if main_~str1~6[main_~i~6] == main_~str2~6[main_~j~6] then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond;assume __VERIFIER_assert_~cond == 0;assume !false; {2917#false} is VALID [2019-01-31 14:58:27,192 INFO L273 TraceCheckUtils]: 22: Hoare triple {2917#false} assume !false; {2917#false} is VALID [2019-01-31 14:58:27,193 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 45 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-31 14:58:27,193 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-31 14:58:27,193 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-01-31 14:58:27,193 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-01-31 14:58:27,194 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-01-31 14:58:27,194 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-31 14:58:27,194 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-01-31 14:58:27,205 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2019-01-31 14:58:27,205 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST2 (IT: FPandBP) [2019-01-31 14:58:27,235 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2019-01-31 14:58:27,235 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-01-31 14:58:27,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-31 14:58:27,251 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-31 14:58:27,351 INFO L273 TraceCheckUtils]: 0: Hoare triple {2916#true} havoc main_#res;havoc main_#t~nondet0, main_#t~nondet2, main_#t~post1, main_#t~post4, main_#t~post3, main_#t~post6, main_#t~post5, main_~MAX~6, main_~str1~6, main_~str2~6, main_~cont~6, main_~i~6, main_~j~6;main_~MAX~6 := (if main_#t~nondet0 % 4294967296 % 4294967296 <= 2147483647 then main_#t~nondet0 % 4294967296 % 4294967296 else main_#t~nondet0 % 4294967296 % 4294967296 - 4294967296);havoc main_#t~nondet0;havoc main_~str1~6;havoc main_~str2~6;havoc main_~cont~6;havoc main_~i~6;havoc main_~j~6;main_~cont~6 := 0;main_~i~6 := 0; {2918#(<= 0 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:27,352 INFO L273 TraceCheckUtils]: 1: Hoare triple {2918#(<= 0 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {2919#(<= 1 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:27,353 INFO L273 TraceCheckUtils]: 2: Hoare triple {2919#(<= 1 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {2920#(<= 2 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:27,354 INFO L273 TraceCheckUtils]: 3: Hoare triple {2920#(<= 2 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {2921#(<= 3 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:27,355 INFO L273 TraceCheckUtils]: 4: Hoare triple {2921#(<= 3 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {2922#(<= 4 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:27,356 INFO L273 TraceCheckUtils]: 5: Hoare triple {2922#(<= 4 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {2923#(<= 5 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:27,357 INFO L273 TraceCheckUtils]: 6: Hoare triple {2923#(<= 5 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {2924#(<= 6 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:27,358 INFO L273 TraceCheckUtils]: 7: Hoare triple {2924#(<= 6 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {2925#(<= 7 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:27,358 INFO L273 TraceCheckUtils]: 8: Hoare triple {2925#(<= 7 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {2926#(<= 8 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:27,359 INFO L273 TraceCheckUtils]: 9: Hoare triple {2926#(<= 8 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {2927#(<= 9 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:27,360 INFO L273 TraceCheckUtils]: 10: Hoare triple {2927#(<= 9 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {2928#(<= 10 ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:58:27,361 INFO L273 TraceCheckUtils]: 11: Hoare triple {2928#(<= 10 ULTIMATE.start_main_~MAX~6)} assume !(main_~i~6 < main_~MAX~6);main_~str1~6 := main_~str1~6[main_~MAX~6 - 1 := 0];main_~j~6 := 0;main_~i~6 := main_~MAX~6 - 1; {2927#(<= 9 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:27,362 INFO L273 TraceCheckUtils]: 12: Hoare triple {2927#(<= 9 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {2926#(<= 8 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:27,363 INFO L273 TraceCheckUtils]: 13: Hoare triple {2926#(<= 8 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {2925#(<= 7 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:27,364 INFO L273 TraceCheckUtils]: 14: Hoare triple {2925#(<= 7 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {2924#(<= 6 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:27,365 INFO L273 TraceCheckUtils]: 15: Hoare triple {2924#(<= 6 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {2923#(<= 5 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:27,366 INFO L273 TraceCheckUtils]: 16: Hoare triple {2923#(<= 5 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {2922#(<= 4 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:27,366 INFO L273 TraceCheckUtils]: 17: Hoare triple {2922#(<= 4 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {2921#(<= 3 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:27,367 INFO L273 TraceCheckUtils]: 18: Hoare triple {2921#(<= 3 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {2920#(<= 2 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:27,368 INFO L273 TraceCheckUtils]: 19: Hoare triple {2920#(<= 2 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {2919#(<= 1 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:27,369 INFO L273 TraceCheckUtils]: 20: Hoare triple {2919#(<= 1 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {2918#(<= 0 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:27,370 INFO L273 TraceCheckUtils]: 21: Hoare triple {2918#(<= 0 ULTIMATE.start_main_~i~6)} assume !(main_~i~6 >= 0);main_~j~6 := main_~MAX~6 - 1;main_~i~6 := 0;assume !!(main_~i~6 < main_~MAX~6);__VERIFIER_assert_#in~cond := (if main_~str1~6[main_~i~6] == main_~str2~6[main_~j~6] then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond;assume __VERIFIER_assert_~cond == 0;assume !false; {2917#false} is VALID [2019-01-31 14:58:27,370 INFO L273 TraceCheckUtils]: 22: Hoare triple {2917#false} assume !false; {2917#false} is VALID [2019-01-31 14:58:27,371 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 45 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-31 14:58:27,371 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2019-01-31 14:58:27,596 INFO L273 TraceCheckUtils]: 22: Hoare triple {2917#false} assume !false; {2917#false} is VALID [2019-01-31 14:58:27,596 INFO L273 TraceCheckUtils]: 21: Hoare triple {2918#(<= 0 ULTIMATE.start_main_~i~6)} assume !(main_~i~6 >= 0);main_~j~6 := main_~MAX~6 - 1;main_~i~6 := 0;assume !!(main_~i~6 < main_~MAX~6);__VERIFIER_assert_#in~cond := (if main_~str1~6[main_~i~6] == main_~str2~6[main_~j~6] then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond;assume __VERIFIER_assert_~cond == 0;assume !false; {2917#false} is VALID [2019-01-31 14:58:27,597 INFO L273 TraceCheckUtils]: 20: Hoare triple {2919#(<= 1 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {2918#(<= 0 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:27,598 INFO L273 TraceCheckUtils]: 19: Hoare triple {2920#(<= 2 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {2919#(<= 1 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:27,599 INFO L273 TraceCheckUtils]: 18: Hoare triple {2921#(<= 3 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {2920#(<= 2 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:27,600 INFO L273 TraceCheckUtils]: 17: Hoare triple {2922#(<= 4 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {2921#(<= 3 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:27,601 INFO L273 TraceCheckUtils]: 16: Hoare triple {2923#(<= 5 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {2922#(<= 4 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:27,602 INFO L273 TraceCheckUtils]: 15: Hoare triple {2924#(<= 6 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {2923#(<= 5 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:27,603 INFO L273 TraceCheckUtils]: 14: Hoare triple {2925#(<= 7 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {2924#(<= 6 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:27,603 INFO L273 TraceCheckUtils]: 13: Hoare triple {2926#(<= 8 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {2925#(<= 7 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:27,604 INFO L273 TraceCheckUtils]: 12: Hoare triple {2927#(<= 9 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {2926#(<= 8 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:27,605 INFO L273 TraceCheckUtils]: 11: Hoare triple {2928#(<= 10 ULTIMATE.start_main_~MAX~6)} assume !(main_~i~6 < main_~MAX~6);main_~str1~6 := main_~str1~6[main_~MAX~6 - 1 := 0];main_~j~6 := 0;main_~i~6 := main_~MAX~6 - 1; {2927#(<= 9 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:27,606 INFO L273 TraceCheckUtils]: 10: Hoare triple {2927#(<= 9 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {2928#(<= 10 ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:58:27,607 INFO L273 TraceCheckUtils]: 9: Hoare triple {2926#(<= 8 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {2927#(<= 9 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:27,608 INFO L273 TraceCheckUtils]: 8: Hoare triple {2925#(<= 7 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {2926#(<= 8 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:27,609 INFO L273 TraceCheckUtils]: 7: Hoare triple {2924#(<= 6 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {2925#(<= 7 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:27,610 INFO L273 TraceCheckUtils]: 6: Hoare triple {2923#(<= 5 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {2924#(<= 6 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:27,611 INFO L273 TraceCheckUtils]: 5: Hoare triple {2922#(<= 4 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {2923#(<= 5 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:27,612 INFO L273 TraceCheckUtils]: 4: Hoare triple {2921#(<= 3 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {2922#(<= 4 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:27,612 INFO L273 TraceCheckUtils]: 3: Hoare triple {2920#(<= 2 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {2921#(<= 3 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:27,613 INFO L273 TraceCheckUtils]: 2: Hoare triple {2919#(<= 1 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {2920#(<= 2 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:27,614 INFO L273 TraceCheckUtils]: 1: Hoare triple {2918#(<= 0 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {2919#(<= 1 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:27,615 INFO L273 TraceCheckUtils]: 0: Hoare triple {2916#true} havoc main_#res;havoc main_#t~nondet0, main_#t~nondet2, main_#t~post1, main_#t~post4, main_#t~post3, main_#t~post6, main_#t~post5, main_~MAX~6, main_~str1~6, main_~str2~6, main_~cont~6, main_~i~6, main_~j~6;main_~MAX~6 := (if main_#t~nondet0 % 4294967296 % 4294967296 <= 2147483647 then main_#t~nondet0 % 4294967296 % 4294967296 else main_#t~nondet0 % 4294967296 % 4294967296 - 4294967296);havoc main_#t~nondet0;havoc main_~str1~6;havoc main_~str2~6;havoc main_~cont~6;havoc main_~i~6;havoc main_~j~6;main_~cont~6 := 0;main_~i~6 := 0; {2918#(<= 0 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:27,616 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 45 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-31 14:58:27,635 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-01-31 14:58:27,635 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 12 [2019-01-31 14:58:27,635 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-01-31 14:58:27,636 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 23 [2019-01-31 14:58:27,636 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-01-31 14:58:27,636 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 13 states. [2019-01-31 14:58:27,661 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 23 edges. 23 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-01-31 14:58:27,661 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2019-01-31 14:58:27,662 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2019-01-31 14:58:27,662 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=88, Unknown=0, NotChecked=0, Total=156 [2019-01-31 14:58:27,662 INFO L87 Difference]: Start difference. First operand 24 states and 25 transitions. Second operand 13 states. [2019-01-31 14:58:28,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 14:58:28,132 INFO L93 Difference]: Finished difference Result 27 states and 28 transitions. [2019-01-31 14:58:28,132 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2019-01-31 14:58:28,132 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 23 [2019-01-31 14:58:28,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-31 14:58:28,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2019-01-31 14:58:28,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 28 transitions. [2019-01-31 14:58:28,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2019-01-31 14:58:28,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 28 transitions. [2019-01-31 14:58:28,134 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 23 states and 28 transitions. [2019-01-31 14:58:28,159 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 28 edges. 28 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-01-31 14:58:28,160 INFO L225 Difference]: With dead ends: 27 [2019-01-31 14:58:28,160 INFO L226 Difference]: Without dead ends: 25 [2019-01-31 14:58:28,161 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 35 SyntacticMatches, 20 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 180 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=198, Invalid=308, Unknown=0, NotChecked=0, Total=506 [2019-01-31 14:58:28,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2019-01-31 14:58:28,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2019-01-31 14:58:28,404 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-01-31 14:58:28,404 INFO L82 GeneralOperation]: Start isEquivalent. First operand 25 states. Second operand 25 states. [2019-01-31 14:58:28,404 INFO L74 IsIncluded]: Start isIncluded. First operand 25 states. Second operand 25 states. [2019-01-31 14:58:28,404 INFO L87 Difference]: Start difference. First operand 25 states. Second operand 25 states. [2019-01-31 14:58:28,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 14:58:28,405 INFO L93 Difference]: Finished difference Result 25 states and 26 transitions. [2019-01-31 14:58:28,405 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 26 transitions. [2019-01-31 14:58:28,406 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-31 14:58:28,406 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-01-31 14:58:28,406 INFO L74 IsIncluded]: Start isIncluded. First operand 25 states. Second operand 25 states. [2019-01-31 14:58:28,406 INFO L87 Difference]: Start difference. First operand 25 states. Second operand 25 states. [2019-01-31 14:58:28,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 14:58:28,408 INFO L93 Difference]: Finished difference Result 25 states and 26 transitions. [2019-01-31 14:58:28,408 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 26 transitions. [2019-01-31 14:58:28,408 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-31 14:58:28,408 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-01-31 14:58:28,408 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-01-31 14:58:28,408 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-01-31 14:58:28,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2019-01-31 14:58:28,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 26 transitions. [2019-01-31 14:58:28,409 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 26 transitions. Word has length 23 [2019-01-31 14:58:28,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-31 14:58:28,409 INFO L480 AbstractCegarLoop]: Abstraction has 25 states and 26 transitions. [2019-01-31 14:58:28,409 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2019-01-31 14:58:28,410 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 26 transitions. [2019-01-31 14:58:28,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-01-31 14:58:28,410 INFO L394 BasicCegarLoop]: Found error trace [2019-01-31 14:58:28,410 INFO L402 BasicCegarLoop]: trace histogram [10, 10, 1, 1, 1, 1] [2019-01-31 14:58:28,410 INFO L423 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2019-01-31 14:58:28,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-31 14:58:28,411 INFO L82 PathProgramCache]: Analyzing trace with hash 1145646954, now seen corresponding path program 15 times [2019-01-31 14:58:28,411 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-01-31 14:58:28,411 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-31 14:58:28,411 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-01-31 14:58:28,412 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-31 14:58:28,412 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-01-31 14:58:28,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-31 14:58:28,965 INFO L273 TraceCheckUtils]: 0: Hoare triple {3232#true} havoc main_#res;havoc main_#t~nondet0, main_#t~nondet2, main_#t~post1, main_#t~post4, main_#t~post3, main_#t~post6, main_#t~post5, main_~MAX~6, main_~str1~6, main_~str2~6, main_~cont~6, main_~i~6, main_~j~6;main_~MAX~6 := (if main_#t~nondet0 % 4294967296 % 4294967296 <= 2147483647 then main_#t~nondet0 % 4294967296 % 4294967296 else main_#t~nondet0 % 4294967296 % 4294967296 - 4294967296);havoc main_#t~nondet0;havoc main_~str1~6;havoc main_~str2~6;havoc main_~cont~6;havoc main_~i~6;havoc main_~j~6;main_~cont~6 := 0;main_~i~6 := 0; {3234#(and (<= ULTIMATE.start_main_~i~6 0) (<= 0 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:58:28,967 INFO L273 TraceCheckUtils]: 1: Hoare triple {3234#(and (<= ULTIMATE.start_main_~i~6 0) (<= 0 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {3235#(and (<= ULTIMATE.start_main_~i~6 1) (<= 1 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:58:28,968 INFO L273 TraceCheckUtils]: 2: Hoare triple {3235#(and (<= ULTIMATE.start_main_~i~6 1) (<= 1 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {3236#(and (<= ULTIMATE.start_main_~i~6 2) (<= 2 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:58:28,969 INFO L273 TraceCheckUtils]: 3: Hoare triple {3236#(and (<= ULTIMATE.start_main_~i~6 2) (<= 2 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {3237#(and (<= 3 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 3))} is VALID [2019-01-31 14:58:28,970 INFO L273 TraceCheckUtils]: 4: Hoare triple {3237#(and (<= 3 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 3))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {3238#(and (<= ULTIMATE.start_main_~i~6 4) (<= 4 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:58:28,971 INFO L273 TraceCheckUtils]: 5: Hoare triple {3238#(and (<= ULTIMATE.start_main_~i~6 4) (<= 4 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {3239#(and (<= 5 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 5))} is VALID [2019-01-31 14:58:28,972 INFO L273 TraceCheckUtils]: 6: Hoare triple {3239#(and (<= 5 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 5))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {3240#(and (<= ULTIMATE.start_main_~i~6 6) (<= 6 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:58:28,972 INFO L273 TraceCheckUtils]: 7: Hoare triple {3240#(and (<= ULTIMATE.start_main_~i~6 6) (<= 6 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {3241#(and (<= 7 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 7))} is VALID [2019-01-31 14:58:28,973 INFO L273 TraceCheckUtils]: 8: Hoare triple {3241#(and (<= 7 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 7))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {3242#(and (<= ULTIMATE.start_main_~i~6 8) (<= 8 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:58:28,974 INFO L273 TraceCheckUtils]: 9: Hoare triple {3242#(and (<= ULTIMATE.start_main_~i~6 8) (<= 8 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {3243#(or (not (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 1))) (and (<= ULTIMATE.start_main_~i~6 9) (<= 9 ULTIMATE.start_main_~i~6)))} is VALID [2019-01-31 14:58:28,976 INFO L273 TraceCheckUtils]: 10: Hoare triple {3243#(or (not (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 1))) (and (<= ULTIMATE.start_main_~i~6 9) (<= 9 ULTIMATE.start_main_~i~6)))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {3244#(or (= 10 ULTIMATE.start_main_~MAX~6) (<= (+ ULTIMATE.start_main_~i~6 1) ULTIMATE.start_main_~MAX~6))} is VALID [2019-01-31 14:58:28,977 INFO L273 TraceCheckUtils]: 11: Hoare triple {3244#(or (= 10 ULTIMATE.start_main_~MAX~6) (<= (+ ULTIMATE.start_main_~i~6 1) ULTIMATE.start_main_~MAX~6))} assume !(main_~i~6 < main_~MAX~6);main_~str1~6 := main_~str1~6[main_~MAX~6 - 1 := 0];main_~j~6 := 0;main_~i~6 := main_~MAX~6 - 1; {3245#(= (+ ULTIMATE.start_main_~j~6 10) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:58:28,978 INFO L273 TraceCheckUtils]: 12: Hoare triple {3245#(= (+ ULTIMATE.start_main_~j~6 10) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {3246#(= (+ ULTIMATE.start_main_~j~6 9) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:58:28,979 INFO L273 TraceCheckUtils]: 13: Hoare triple {3246#(= (+ ULTIMATE.start_main_~j~6 9) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {3247#(= (+ ULTIMATE.start_main_~j~6 8) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:58:28,980 INFO L273 TraceCheckUtils]: 14: Hoare triple {3247#(= (+ ULTIMATE.start_main_~j~6 8) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {3248#(= (+ ULTIMATE.start_main_~j~6 7) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:58:28,981 INFO L273 TraceCheckUtils]: 15: Hoare triple {3248#(= (+ ULTIMATE.start_main_~j~6 7) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {3249#(= (+ ULTIMATE.start_main_~j~6 6) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:58:28,981 INFO L273 TraceCheckUtils]: 16: Hoare triple {3249#(= (+ ULTIMATE.start_main_~j~6 6) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {3250#(= (+ ULTIMATE.start_main_~j~6 5) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:58:28,982 INFO L273 TraceCheckUtils]: 17: Hoare triple {3250#(= (+ ULTIMATE.start_main_~j~6 5) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {3251#(= (+ ULTIMATE.start_main_~j~6 4) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:58:28,983 INFO L273 TraceCheckUtils]: 18: Hoare triple {3251#(= (+ ULTIMATE.start_main_~j~6 4) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {3252#(= (+ ULTIMATE.start_main_~j~6 3) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:58:28,984 INFO L273 TraceCheckUtils]: 19: Hoare triple {3252#(= (+ ULTIMATE.start_main_~j~6 3) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {3253#(= (+ ULTIMATE.start_main_~j~6 2) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:58:28,985 INFO L273 TraceCheckUtils]: 20: Hoare triple {3253#(= (+ ULTIMATE.start_main_~j~6 2) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {3254#(= (+ ULTIMATE.start_main_~j~6 1) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:58:28,986 INFO L273 TraceCheckUtils]: 21: Hoare triple {3254#(= (+ ULTIMATE.start_main_~j~6 1) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {3255#(= (select ULTIMATE.start_main_~str1~6 0) (select ULTIMATE.start_main_~str2~6 (+ ULTIMATE.start_main_~MAX~6 (- 1))))} is VALID [2019-01-31 14:58:28,988 INFO L273 TraceCheckUtils]: 22: Hoare triple {3255#(= (select ULTIMATE.start_main_~str1~6 0) (select ULTIMATE.start_main_~str2~6 (+ ULTIMATE.start_main_~MAX~6 (- 1))))} assume !(main_~i~6 >= 0);main_~j~6 := main_~MAX~6 - 1;main_~i~6 := 0;assume !!(main_~i~6 < main_~MAX~6);__VERIFIER_assert_#in~cond := (if main_~str1~6[main_~i~6] == main_~str2~6[main_~j~6] then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond;assume __VERIFIER_assert_~cond == 0;assume !false; {3233#false} is VALID [2019-01-31 14:58:28,988 INFO L273 TraceCheckUtils]: 23: Hoare triple {3233#false} assume !false; {3233#false} is VALID [2019-01-31 14:58:28,990 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 0 proven. 110 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-31 14:58:28,990 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-31 14:58:28,990 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-01-31 14:58:28,990 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-01-31 14:58:28,990 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-01-31 14:58:28,990 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-31 14:58:28,990 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-01-31 14:58:28,998 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2019-01-31 14:58:28,998 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder TERMS_WITH_SMALL_CONSTANTS_FIRST (IT: FPandBP) [2019-01-31 14:58:29,012 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-01-31 14:58:29,012 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-01-31 14:58:29,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-31 14:58:29,024 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-31 14:58:29,387 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2019-01-31 14:58:29,388 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-01-31 14:58:29,394 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-31 14:58:29,395 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:17, output treesize:16 [2019-01-31 14:58:29,397 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-01-31 14:58:29,398 WARN L398 uantifierElimination]: Input elimination task: ∃ [v_ULTIMATE.start_main_~str2~6_86]. (and (<= 10 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 11)) (= ULTIMATE.start_main_~str2~6 (store v_ULTIMATE.start_main_~str2~6_86 9 (select ULTIMATE.start_main_~str1~6 0)))) [2019-01-31 14:58:29,398 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (and (<= 10 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 11)) (= (select ULTIMATE.start_main_~str1~6 0) (select ULTIMATE.start_main_~str2~6 9))) [2019-01-31 14:58:29,523 INFO L273 TraceCheckUtils]: 0: Hoare triple {3232#true} havoc main_#res;havoc main_#t~nondet0, main_#t~nondet2, main_#t~post1, main_#t~post4, main_#t~post3, main_#t~post6, main_#t~post5, main_~MAX~6, main_~str1~6, main_~str2~6, main_~cont~6, main_~i~6, main_~j~6;main_~MAX~6 := (if main_#t~nondet0 % 4294967296 % 4294967296 <= 2147483647 then main_#t~nondet0 % 4294967296 % 4294967296 else main_#t~nondet0 % 4294967296 % 4294967296 - 4294967296);havoc main_#t~nondet0;havoc main_~str1~6;havoc main_~str2~6;havoc main_~cont~6;havoc main_~i~6;havoc main_~j~6;main_~cont~6 := 0;main_~i~6 := 0; {3232#true} is VALID [2019-01-31 14:58:29,523 INFO L273 TraceCheckUtils]: 1: Hoare triple {3232#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {3232#true} is VALID [2019-01-31 14:58:29,523 INFO L273 TraceCheckUtils]: 2: Hoare triple {3232#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {3232#true} is VALID [2019-01-31 14:58:29,523 INFO L273 TraceCheckUtils]: 3: Hoare triple {3232#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {3232#true} is VALID [2019-01-31 14:58:29,523 INFO L273 TraceCheckUtils]: 4: Hoare triple {3232#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {3232#true} is VALID [2019-01-31 14:58:29,524 INFO L273 TraceCheckUtils]: 5: Hoare triple {3232#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {3232#true} is VALID [2019-01-31 14:58:29,524 INFO L273 TraceCheckUtils]: 6: Hoare triple {3232#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {3232#true} is VALID [2019-01-31 14:58:29,524 INFO L273 TraceCheckUtils]: 7: Hoare triple {3232#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {3232#true} is VALID [2019-01-31 14:58:29,524 INFO L273 TraceCheckUtils]: 8: Hoare triple {3232#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {3232#true} is VALID [2019-01-31 14:58:29,524 INFO L273 TraceCheckUtils]: 9: Hoare triple {3232#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {3232#true} is VALID [2019-01-31 14:58:29,524 INFO L273 TraceCheckUtils]: 10: Hoare triple {3232#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {3232#true} is VALID [2019-01-31 14:58:29,525 INFO L273 TraceCheckUtils]: 11: Hoare triple {3232#true} assume !(main_~i~6 < main_~MAX~6);main_~str1~6 := main_~str1~6[main_~MAX~6 - 1 := 0];main_~j~6 := 0;main_~i~6 := main_~MAX~6 - 1; {3292#(and (= ULTIMATE.start_main_~j~6 0) (= (+ ULTIMATE.start_main_~i~6 1) ULTIMATE.start_main_~MAX~6))} is VALID [2019-01-31 14:58:29,526 INFO L273 TraceCheckUtils]: 12: Hoare triple {3292#(and (= ULTIMATE.start_main_~j~6 0) (= (+ ULTIMATE.start_main_~i~6 1) ULTIMATE.start_main_~MAX~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {3296#(and (= ULTIMATE.start_main_~j~6 1) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 2)))} is VALID [2019-01-31 14:58:29,526 INFO L273 TraceCheckUtils]: 13: Hoare triple {3296#(and (= ULTIMATE.start_main_~j~6 1) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 2)))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {3300#(and (= (+ ULTIMATE.start_main_~i~6 3) ULTIMATE.start_main_~MAX~6) (= ULTIMATE.start_main_~j~6 2))} is VALID [2019-01-31 14:58:29,528 INFO L273 TraceCheckUtils]: 14: Hoare triple {3300#(and (= (+ ULTIMATE.start_main_~i~6 3) ULTIMATE.start_main_~MAX~6) (= ULTIMATE.start_main_~j~6 2))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {3304#(and (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 4)) (= ULTIMATE.start_main_~j~6 3))} is VALID [2019-01-31 14:58:29,528 INFO L273 TraceCheckUtils]: 15: Hoare triple {3304#(and (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 4)) (= ULTIMATE.start_main_~j~6 3))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {3308#(and (= ULTIMATE.start_main_~j~6 4) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 5)))} is VALID [2019-01-31 14:58:29,530 INFO L273 TraceCheckUtils]: 16: Hoare triple {3308#(and (= ULTIMATE.start_main_~j~6 4) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 5)))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {3312#(and (= ULTIMATE.start_main_~j~6 5) (= (+ ULTIMATE.start_main_~i~6 6) ULTIMATE.start_main_~MAX~6))} is VALID [2019-01-31 14:58:29,531 INFO L273 TraceCheckUtils]: 17: Hoare triple {3312#(and (= ULTIMATE.start_main_~j~6 5) (= (+ ULTIMATE.start_main_~i~6 6) ULTIMATE.start_main_~MAX~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {3316#(and (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 7)) (= ULTIMATE.start_main_~j~6 6))} is VALID [2019-01-31 14:58:29,532 INFO L273 TraceCheckUtils]: 18: Hoare triple {3316#(and (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 7)) (= ULTIMATE.start_main_~j~6 6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {3320#(and (= ULTIMATE.start_main_~j~6 7) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 8)))} is VALID [2019-01-31 14:58:29,533 INFO L273 TraceCheckUtils]: 19: Hoare triple {3320#(and (= ULTIMATE.start_main_~j~6 7) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 8)))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {3324#(and (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 9)) (= ULTIMATE.start_main_~j~6 8))} is VALID [2019-01-31 14:58:29,534 INFO L273 TraceCheckUtils]: 20: Hoare triple {3324#(and (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 9)) (= ULTIMATE.start_main_~j~6 8))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {3328#(and (= ULTIMATE.start_main_~j~6 9) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 10)))} is VALID [2019-01-31 14:58:29,535 INFO L273 TraceCheckUtils]: 21: Hoare triple {3328#(and (= ULTIMATE.start_main_~j~6 9) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 10)))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {3332#(and (= (select ULTIMATE.start_main_~str1~6 0) (select ULTIMATE.start_main_~str2~6 9)) (<= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 11)) (<= 10 ULTIMATE.start_main_~MAX~6))} is VALID [2019-01-31 14:58:29,536 INFO L273 TraceCheckUtils]: 22: Hoare triple {3332#(and (= (select ULTIMATE.start_main_~str1~6 0) (select ULTIMATE.start_main_~str2~6 9)) (<= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 11)) (<= 10 ULTIMATE.start_main_~MAX~6))} assume !(main_~i~6 >= 0);main_~j~6 := main_~MAX~6 - 1;main_~i~6 := 0;assume !!(main_~i~6 < main_~MAX~6);__VERIFIER_assert_#in~cond := (if main_~str1~6[main_~i~6] == main_~str2~6[main_~j~6] then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond;assume __VERIFIER_assert_~cond == 0;assume !false; {3233#false} is VALID [2019-01-31 14:58:29,536 INFO L273 TraceCheckUtils]: 23: Hoare triple {3233#false} assume !false; {3233#false} is VALID [2019-01-31 14:58:29,538 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2019-01-31 14:58:29,538 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2019-01-31 14:58:29,798 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 5 [2019-01-31 14:58:29,802 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-01-31 14:58:29,821 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-31 14:58:29,821 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:22, output treesize:12 [2019-01-31 14:58:30,349 INFO L273 TraceCheckUtils]: 23: Hoare triple {3233#false} assume !false; {3233#false} is VALID [2019-01-31 14:58:30,351 INFO L273 TraceCheckUtils]: 22: Hoare triple {3342#(or (= (select ULTIMATE.start_main_~str1~6 0) (select ULTIMATE.start_main_~str2~6 (+ ULTIMATE.start_main_~MAX~6 (- 1)))) (<= 0 ULTIMATE.start_main_~i~6))} assume !(main_~i~6 >= 0);main_~j~6 := main_~MAX~6 - 1;main_~i~6 := 0;assume !!(main_~i~6 < main_~MAX~6);__VERIFIER_assert_#in~cond := (if main_~str1~6[main_~i~6] == main_~str2~6[main_~j~6] then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond;assume __VERIFIER_assert_~cond == 0;assume !false; {3233#false} is VALID [2019-01-31 14:58:30,352 INFO L273 TraceCheckUtils]: 21: Hoare triple {3346#(or (< ULTIMATE.start_main_~i~6 0) (< 0 ULTIMATE.start_main_~i~6) (= (+ ULTIMATE.start_main_~j~6 1) ULTIMATE.start_main_~MAX~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {3342#(or (= (select ULTIMATE.start_main_~str1~6 0) (select ULTIMATE.start_main_~str2~6 (+ ULTIMATE.start_main_~MAX~6 (- 1)))) (<= 0 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:58:30,353 INFO L273 TraceCheckUtils]: 20: Hoare triple {3350#(or (= (+ ULTIMATE.start_main_~j~6 2) ULTIMATE.start_main_~MAX~6) (< 1 ULTIMATE.start_main_~i~6) (< ULTIMATE.start_main_~i~6 1))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {3346#(or (< ULTIMATE.start_main_~i~6 0) (< 0 ULTIMATE.start_main_~i~6) (= (+ ULTIMATE.start_main_~j~6 1) ULTIMATE.start_main_~MAX~6))} is VALID [2019-01-31 14:58:30,354 INFO L273 TraceCheckUtils]: 19: Hoare triple {3354#(or (= (+ ULTIMATE.start_main_~j~6 3) ULTIMATE.start_main_~MAX~6) (< ULTIMATE.start_main_~i~6 2) (< 2 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {3350#(or (= (+ ULTIMATE.start_main_~j~6 2) ULTIMATE.start_main_~MAX~6) (< 1 ULTIMATE.start_main_~i~6) (< ULTIMATE.start_main_~i~6 1))} is VALID [2019-01-31 14:58:30,356 INFO L273 TraceCheckUtils]: 18: Hoare triple {3358#(or (= (+ ULTIMATE.start_main_~j~6 4) ULTIMATE.start_main_~MAX~6) (< ULTIMATE.start_main_~i~6 3) (< 3 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {3354#(or (= (+ ULTIMATE.start_main_~j~6 3) ULTIMATE.start_main_~MAX~6) (< ULTIMATE.start_main_~i~6 2) (< 2 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:58:30,357 INFO L273 TraceCheckUtils]: 17: Hoare triple {3362#(or (= (+ ULTIMATE.start_main_~j~6 5) ULTIMATE.start_main_~MAX~6) (< 4 ULTIMATE.start_main_~i~6) (< ULTIMATE.start_main_~i~6 4))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {3358#(or (= (+ ULTIMATE.start_main_~j~6 4) ULTIMATE.start_main_~MAX~6) (< ULTIMATE.start_main_~i~6 3) (< 3 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:58:30,378 INFO L273 TraceCheckUtils]: 16: Hoare triple {3366#(or (< ULTIMATE.start_main_~i~6 5) (< 5 ULTIMATE.start_main_~i~6) (= (+ ULTIMATE.start_main_~j~6 6) ULTIMATE.start_main_~MAX~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {3362#(or (= (+ ULTIMATE.start_main_~j~6 5) ULTIMATE.start_main_~MAX~6) (< 4 ULTIMATE.start_main_~i~6) (< ULTIMATE.start_main_~i~6 4))} is VALID [2019-01-31 14:58:30,379 INFO L273 TraceCheckUtils]: 15: Hoare triple {3370#(or (< ULTIMATE.start_main_~i~6 6) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 7)) (< 6 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {3366#(or (< ULTIMATE.start_main_~i~6 5) (< 5 ULTIMATE.start_main_~i~6) (= (+ ULTIMATE.start_main_~j~6 6) ULTIMATE.start_main_~MAX~6))} is VALID [2019-01-31 14:58:30,380 INFO L273 TraceCheckUtils]: 14: Hoare triple {3374#(or (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 8)) (< ULTIMATE.start_main_~i~6 7) (< 7 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {3370#(or (< ULTIMATE.start_main_~i~6 6) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 7)) (< 6 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:58:30,380 INFO L273 TraceCheckUtils]: 13: Hoare triple {3378#(or (< 8 ULTIMATE.start_main_~i~6) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 9)) (< ULTIMATE.start_main_~i~6 8))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {3374#(or (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 8)) (< ULTIMATE.start_main_~i~6 7) (< 7 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:58:30,381 INFO L273 TraceCheckUtils]: 12: Hoare triple {3382#(or (< ULTIMATE.start_main_~i~6 9) (= (+ ULTIMATE.start_main_~j~6 10) ULTIMATE.start_main_~MAX~6) (< 9 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {3378#(or (< 8 ULTIMATE.start_main_~i~6) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 9)) (< ULTIMATE.start_main_~i~6 8))} is VALID [2019-01-31 14:58:30,382 INFO L273 TraceCheckUtils]: 11: Hoare triple {3232#true} assume !(main_~i~6 < main_~MAX~6);main_~str1~6 := main_~str1~6[main_~MAX~6 - 1 := 0];main_~j~6 := 0;main_~i~6 := main_~MAX~6 - 1; {3382#(or (< ULTIMATE.start_main_~i~6 9) (= (+ ULTIMATE.start_main_~j~6 10) ULTIMATE.start_main_~MAX~6) (< 9 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:58:30,382 INFO L273 TraceCheckUtils]: 10: Hoare triple {3232#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {3232#true} is VALID [2019-01-31 14:58:30,382 INFO L273 TraceCheckUtils]: 9: Hoare triple {3232#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {3232#true} is VALID [2019-01-31 14:58:30,382 INFO L273 TraceCheckUtils]: 8: Hoare triple {3232#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {3232#true} is VALID [2019-01-31 14:58:30,383 INFO L273 TraceCheckUtils]: 7: Hoare triple {3232#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {3232#true} is VALID [2019-01-31 14:58:30,383 INFO L273 TraceCheckUtils]: 6: Hoare triple {3232#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {3232#true} is VALID [2019-01-31 14:58:30,383 INFO L273 TraceCheckUtils]: 5: Hoare triple {3232#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {3232#true} is VALID [2019-01-31 14:58:30,383 INFO L273 TraceCheckUtils]: 4: Hoare triple {3232#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {3232#true} is VALID [2019-01-31 14:58:30,383 INFO L273 TraceCheckUtils]: 3: Hoare triple {3232#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {3232#true} is VALID [2019-01-31 14:58:30,384 INFO L273 TraceCheckUtils]: 2: Hoare triple {3232#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {3232#true} is VALID [2019-01-31 14:58:30,384 INFO L273 TraceCheckUtils]: 1: Hoare triple {3232#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {3232#true} is VALID [2019-01-31 14:58:30,384 INFO L273 TraceCheckUtils]: 0: Hoare triple {3232#true} havoc main_#res;havoc main_#t~nondet0, main_#t~nondet2, main_#t~post1, main_#t~post4, main_#t~post3, main_#t~post6, main_#t~post5, main_~MAX~6, main_~str1~6, main_~str2~6, main_~cont~6, main_~i~6, main_~j~6;main_~MAX~6 := (if main_#t~nondet0 % 4294967296 % 4294967296 <= 2147483647 then main_#t~nondet0 % 4294967296 % 4294967296 else main_#t~nondet0 % 4294967296 % 4294967296 - 4294967296);havoc main_#t~nondet0;havoc main_~str1~6;havoc main_~str2~6;havoc main_~cont~6;havoc main_~i~6;havoc main_~j~6;main_~cont~6 := 0;main_~i~6 := 0; {3232#true} is VALID [2019-01-31 14:58:30,386 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2019-01-31 14:58:30,404 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-01-31 14:58:30,404 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 13, 13] total 46 [2019-01-31 14:58:30,404 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-01-31 14:58:30,405 INFO L78 Accepts]: Start accepts. Automaton has 35 states. Word has length 24 [2019-01-31 14:58:30,405 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-01-31 14:58:30,405 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 35 states. [2019-01-31 14:58:30,447 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 38 edges. 38 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-01-31 14:58:30,447 INFO L459 AbstractCegarLoop]: Interpolant automaton has 35 states [2019-01-31 14:58:30,448 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2019-01-31 14:58:30,449 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=310, Invalid=1760, Unknown=0, NotChecked=0, Total=2070 [2019-01-31 14:58:30,449 INFO L87 Difference]: Start difference. First operand 25 states and 26 transitions. Second operand 35 states. [2019-01-31 14:58:34,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 14:58:34,402 INFO L93 Difference]: Finished difference Result 41 states and 45 transitions. [2019-01-31 14:58:34,402 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2019-01-31 14:58:34,402 INFO L78 Accepts]: Start accepts. Automaton has 35 states. Word has length 24 [2019-01-31 14:58:34,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-31 14:58:34,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2019-01-31 14:58:34,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 45 transitions. [2019-01-31 14:58:34,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2019-01-31 14:58:34,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 45 transitions. [2019-01-31 14:58:34,404 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 38 states and 45 transitions. [2019-01-31 14:58:34,456 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 45 edges. 45 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-01-31 14:58:34,457 INFO L225 Difference]: With dead ends: 41 [2019-01-31 14:58:34,458 INFO L226 Difference]: Without dead ends: 27 [2019-01-31 14:58:34,460 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 298 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=553, Invalid=3107, Unknown=0, NotChecked=0, Total=3660 [2019-01-31 14:58:34,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2019-01-31 14:58:34,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2019-01-31 14:58:34,984 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-01-31 14:58:34,984 INFO L82 GeneralOperation]: Start isEquivalent. First operand 27 states. Second operand 27 states. [2019-01-31 14:58:34,984 INFO L74 IsIncluded]: Start isIncluded. First operand 27 states. Second operand 27 states. [2019-01-31 14:58:34,985 INFO L87 Difference]: Start difference. First operand 27 states. Second operand 27 states. [2019-01-31 14:58:34,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 14:58:34,985 INFO L93 Difference]: Finished difference Result 27 states and 28 transitions. [2019-01-31 14:58:34,986 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 28 transitions. [2019-01-31 14:58:34,986 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-31 14:58:34,986 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-01-31 14:58:34,986 INFO L74 IsIncluded]: Start isIncluded. First operand 27 states. Second operand 27 states. [2019-01-31 14:58:34,986 INFO L87 Difference]: Start difference. First operand 27 states. Second operand 27 states. [2019-01-31 14:58:34,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 14:58:34,987 INFO L93 Difference]: Finished difference Result 27 states and 28 transitions. [2019-01-31 14:58:34,987 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 28 transitions. [2019-01-31 14:58:34,987 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-31 14:58:34,987 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-01-31 14:58:34,987 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-01-31 14:58:34,988 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-01-31 14:58:34,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2019-01-31 14:58:34,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 28 transitions. [2019-01-31 14:58:34,988 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 28 transitions. Word has length 24 [2019-01-31 14:58:34,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-31 14:58:34,988 INFO L480 AbstractCegarLoop]: Abstraction has 27 states and 28 transitions. [2019-01-31 14:58:34,989 INFO L481 AbstractCegarLoop]: Interpolant automaton has 35 states. [2019-01-31 14:58:34,989 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 28 transitions. [2019-01-31 14:58:34,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2019-01-31 14:58:34,989 INFO L394 BasicCegarLoop]: Found error trace [2019-01-31 14:58:34,989 INFO L402 BasicCegarLoop]: trace histogram [11, 11, 1, 1, 1, 1] [2019-01-31 14:58:34,989 INFO L423 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2019-01-31 14:58:34,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-31 14:58:34,990 INFO L82 PathProgramCache]: Analyzing trace with hash 430349717, now seen corresponding path program 16 times [2019-01-31 14:58:34,990 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-01-31 14:58:34,990 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-31 14:58:34,991 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-01-31 14:58:34,991 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-31 14:58:34,991 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-01-31 14:58:35,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-31 14:58:35,513 INFO L273 TraceCheckUtils]: 0: Hoare triple {3633#true} havoc main_#res;havoc main_#t~nondet0, main_#t~nondet2, main_#t~post1, main_#t~post4, main_#t~post3, main_#t~post6, main_#t~post5, main_~MAX~6, main_~str1~6, main_~str2~6, main_~cont~6, main_~i~6, main_~j~6;main_~MAX~6 := (if main_#t~nondet0 % 4294967296 % 4294967296 <= 2147483647 then main_#t~nondet0 % 4294967296 % 4294967296 else main_#t~nondet0 % 4294967296 % 4294967296 - 4294967296);havoc main_#t~nondet0;havoc main_~str1~6;havoc main_~str2~6;havoc main_~cont~6;havoc main_~i~6;havoc main_~j~6;main_~cont~6 := 0;main_~i~6 := 0; {3635#(and (<= ULTIMATE.start_main_~i~6 0) (<= 0 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:58:35,514 INFO L273 TraceCheckUtils]: 1: Hoare triple {3635#(and (<= ULTIMATE.start_main_~i~6 0) (<= 0 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {3636#(and (<= ULTIMATE.start_main_~i~6 1) (<= 1 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:58:35,515 INFO L273 TraceCheckUtils]: 2: Hoare triple {3636#(and (<= ULTIMATE.start_main_~i~6 1) (<= 1 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {3637#(and (<= ULTIMATE.start_main_~i~6 2) (<= 2 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:58:35,516 INFO L273 TraceCheckUtils]: 3: Hoare triple {3637#(and (<= ULTIMATE.start_main_~i~6 2) (<= 2 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {3638#(and (<= 3 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 3))} is VALID [2019-01-31 14:58:35,517 INFO L273 TraceCheckUtils]: 4: Hoare triple {3638#(and (<= 3 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 3))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {3639#(and (<= ULTIMATE.start_main_~i~6 4) (<= 4 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:58:35,518 INFO L273 TraceCheckUtils]: 5: Hoare triple {3639#(and (<= ULTIMATE.start_main_~i~6 4) (<= 4 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {3640#(and (<= 5 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 5))} is VALID [2019-01-31 14:58:35,522 INFO L273 TraceCheckUtils]: 6: Hoare triple {3640#(and (<= 5 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 5))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {3641#(and (<= ULTIMATE.start_main_~i~6 6) (<= 6 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:58:35,523 INFO L273 TraceCheckUtils]: 7: Hoare triple {3641#(and (<= ULTIMATE.start_main_~i~6 6) (<= 6 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {3642#(and (<= 7 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 7))} is VALID [2019-01-31 14:58:35,524 INFO L273 TraceCheckUtils]: 8: Hoare triple {3642#(and (<= 7 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 7))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {3643#(and (<= ULTIMATE.start_main_~i~6 8) (<= 8 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:58:35,524 INFO L273 TraceCheckUtils]: 9: Hoare triple {3643#(and (<= ULTIMATE.start_main_~i~6 8) (<= 8 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {3644#(and (<= ULTIMATE.start_main_~i~6 9) (<= 9 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:58:35,525 INFO L273 TraceCheckUtils]: 10: Hoare triple {3644#(and (<= ULTIMATE.start_main_~i~6 9) (<= 9 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {3645#(or (and (<= ULTIMATE.start_main_~i~6 10) (<= 10 ULTIMATE.start_main_~i~6)) (not (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 1))))} is VALID [2019-01-31 14:58:35,526 INFO L273 TraceCheckUtils]: 11: Hoare triple {3645#(or (and (<= ULTIMATE.start_main_~i~6 10) (<= 10 ULTIMATE.start_main_~i~6)) (not (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 1))))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {3646#(or (<= (+ ULTIMATE.start_main_~i~6 1) ULTIMATE.start_main_~MAX~6) (= 11 ULTIMATE.start_main_~MAX~6))} is VALID [2019-01-31 14:58:35,527 INFO L273 TraceCheckUtils]: 12: Hoare triple {3646#(or (<= (+ ULTIMATE.start_main_~i~6 1) ULTIMATE.start_main_~MAX~6) (= 11 ULTIMATE.start_main_~MAX~6))} assume !(main_~i~6 < main_~MAX~6);main_~str1~6 := main_~str1~6[main_~MAX~6 - 1 := 0];main_~j~6 := 0;main_~i~6 := main_~MAX~6 - 1; {3647#(= (+ ULTIMATE.start_main_~j~6 11) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:58:35,528 INFO L273 TraceCheckUtils]: 13: Hoare triple {3647#(= (+ ULTIMATE.start_main_~j~6 11) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {3648#(= (+ ULTIMATE.start_main_~j~6 10) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:58:35,529 INFO L273 TraceCheckUtils]: 14: Hoare triple {3648#(= (+ ULTIMATE.start_main_~j~6 10) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {3649#(= (+ ULTIMATE.start_main_~j~6 9) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:58:35,530 INFO L273 TraceCheckUtils]: 15: Hoare triple {3649#(= (+ ULTIMATE.start_main_~j~6 9) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {3650#(= (+ ULTIMATE.start_main_~j~6 8) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:58:35,530 INFO L273 TraceCheckUtils]: 16: Hoare triple {3650#(= (+ ULTIMATE.start_main_~j~6 8) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {3651#(= (+ ULTIMATE.start_main_~j~6 7) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:58:35,531 INFO L273 TraceCheckUtils]: 17: Hoare triple {3651#(= (+ ULTIMATE.start_main_~j~6 7) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {3652#(= (+ ULTIMATE.start_main_~j~6 6) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:58:35,532 INFO L273 TraceCheckUtils]: 18: Hoare triple {3652#(= (+ ULTIMATE.start_main_~j~6 6) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {3653#(= (+ ULTIMATE.start_main_~j~6 5) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:58:35,533 INFO L273 TraceCheckUtils]: 19: Hoare triple {3653#(= (+ ULTIMATE.start_main_~j~6 5) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {3654#(= (+ ULTIMATE.start_main_~j~6 4) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:58:35,534 INFO L273 TraceCheckUtils]: 20: Hoare triple {3654#(= (+ ULTIMATE.start_main_~j~6 4) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {3655#(= (+ ULTIMATE.start_main_~j~6 3) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:58:35,535 INFO L273 TraceCheckUtils]: 21: Hoare triple {3655#(= (+ ULTIMATE.start_main_~j~6 3) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {3656#(= (+ ULTIMATE.start_main_~j~6 2) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:58:35,536 INFO L273 TraceCheckUtils]: 22: Hoare triple {3656#(= (+ ULTIMATE.start_main_~j~6 2) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {3657#(= (+ ULTIMATE.start_main_~j~6 1) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:58:35,537 INFO L273 TraceCheckUtils]: 23: Hoare triple {3657#(= (+ ULTIMATE.start_main_~j~6 1) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {3658#(= (select ULTIMATE.start_main_~str1~6 0) (select ULTIMATE.start_main_~str2~6 (+ ULTIMATE.start_main_~MAX~6 (- 1))))} is VALID [2019-01-31 14:58:35,538 INFO L273 TraceCheckUtils]: 24: Hoare triple {3658#(= (select ULTIMATE.start_main_~str1~6 0) (select ULTIMATE.start_main_~str2~6 (+ ULTIMATE.start_main_~MAX~6 (- 1))))} assume !(main_~i~6 >= 0);main_~j~6 := main_~MAX~6 - 1;main_~i~6 := 0;assume !!(main_~i~6 < main_~MAX~6);__VERIFIER_assert_#in~cond := (if main_~str1~6[main_~i~6] == main_~str2~6[main_~j~6] then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond;assume __VERIFIER_assert_~cond == 0;assume !false; {3634#false} is VALID [2019-01-31 14:58:35,539 INFO L273 TraceCheckUtils]: 25: Hoare triple {3634#false} assume !false; {3634#false} is VALID [2019-01-31 14:58:35,541 INFO L134 CoverageAnalysis]: Checked inductivity of 132 backedges. 0 proven. 132 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-31 14:58:35,541 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-31 14:58:35,541 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-01-31 14:58:35,541 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-01-31 14:58:35,541 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-01-31 14:58:35,541 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-31 14:58:35,541 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-01-31 14:58:35,550 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-31 14:58:35,550 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2019-01-31 14:58:35,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-31 14:58:35,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-31 14:58:35,590 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-31 14:58:36,127 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2019-01-31 14:58:36,129 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-01-31 14:58:36,134 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-31 14:58:36,134 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:15, output treesize:14 [2019-01-31 14:58:36,137 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-01-31 14:58:36,137 WARN L398 uantifierElimination]: Input elimination task: ∃ [v_ULTIMATE.start_main_~str2~6_97]. (and (= (store v_ULTIMATE.start_main_~str2~6_97 10 (select ULTIMATE.start_main_~str1~6 0)) ULTIMATE.start_main_~str2~6) (<= ULTIMATE.start_main_~MAX~6 11) (<= 11 ULTIMATE.start_main_~MAX~6)) [2019-01-31 14:58:36,137 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= (select ULTIMATE.start_main_~str2~6 10) (select ULTIMATE.start_main_~str1~6 0)) (<= ULTIMATE.start_main_~MAX~6 11) (<= 11 ULTIMATE.start_main_~MAX~6)) [2019-01-31 14:58:36,182 INFO L273 TraceCheckUtils]: 0: Hoare triple {3633#true} havoc main_#res;havoc main_#t~nondet0, main_#t~nondet2, main_#t~post1, main_#t~post4, main_#t~post3, main_#t~post6, main_#t~post5, main_~MAX~6, main_~str1~6, main_~str2~6, main_~cont~6, main_~i~6, main_~j~6;main_~MAX~6 := (if main_#t~nondet0 % 4294967296 % 4294967296 <= 2147483647 then main_#t~nondet0 % 4294967296 % 4294967296 else main_#t~nondet0 % 4294967296 % 4294967296 - 4294967296);havoc main_#t~nondet0;havoc main_~str1~6;havoc main_~str2~6;havoc main_~cont~6;havoc main_~i~6;havoc main_~j~6;main_~cont~6 := 0;main_~i~6 := 0; {3635#(and (<= ULTIMATE.start_main_~i~6 0) (<= 0 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:58:36,183 INFO L273 TraceCheckUtils]: 1: Hoare triple {3635#(and (<= ULTIMATE.start_main_~i~6 0) (<= 0 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {3636#(and (<= ULTIMATE.start_main_~i~6 1) (<= 1 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:58:36,184 INFO L273 TraceCheckUtils]: 2: Hoare triple {3636#(and (<= ULTIMATE.start_main_~i~6 1) (<= 1 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {3637#(and (<= ULTIMATE.start_main_~i~6 2) (<= 2 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:58:36,185 INFO L273 TraceCheckUtils]: 3: Hoare triple {3637#(and (<= ULTIMATE.start_main_~i~6 2) (<= 2 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {3638#(and (<= 3 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 3))} is VALID [2019-01-31 14:58:36,186 INFO L273 TraceCheckUtils]: 4: Hoare triple {3638#(and (<= 3 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 3))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {3639#(and (<= ULTIMATE.start_main_~i~6 4) (<= 4 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:58:36,187 INFO L273 TraceCheckUtils]: 5: Hoare triple {3639#(and (<= ULTIMATE.start_main_~i~6 4) (<= 4 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {3640#(and (<= 5 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 5))} is VALID [2019-01-31 14:58:36,188 INFO L273 TraceCheckUtils]: 6: Hoare triple {3640#(and (<= 5 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 5))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {3641#(and (<= ULTIMATE.start_main_~i~6 6) (<= 6 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:58:36,189 INFO L273 TraceCheckUtils]: 7: Hoare triple {3641#(and (<= ULTIMATE.start_main_~i~6 6) (<= 6 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {3642#(and (<= 7 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 7))} is VALID [2019-01-31 14:58:36,190 INFO L273 TraceCheckUtils]: 8: Hoare triple {3642#(and (<= 7 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 7))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {3643#(and (<= ULTIMATE.start_main_~i~6 8) (<= 8 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:58:36,191 INFO L273 TraceCheckUtils]: 9: Hoare triple {3643#(and (<= ULTIMATE.start_main_~i~6 8) (<= 8 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {3644#(and (<= ULTIMATE.start_main_~i~6 9) (<= 9 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:58:36,192 INFO L273 TraceCheckUtils]: 10: Hoare triple {3644#(and (<= ULTIMATE.start_main_~i~6 9) (<= 9 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {3692#(and (<= ULTIMATE.start_main_~i~6 10) (<= 10 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:58:36,193 INFO L273 TraceCheckUtils]: 11: Hoare triple {3692#(and (<= ULTIMATE.start_main_~i~6 10) (<= 10 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {3696#(and (<= ULTIMATE.start_main_~i~6 11) (<= 11 ULTIMATE.start_main_~MAX~6))} is VALID [2019-01-31 14:58:36,194 INFO L273 TraceCheckUtils]: 12: Hoare triple {3696#(and (<= ULTIMATE.start_main_~i~6 11) (<= 11 ULTIMATE.start_main_~MAX~6))} assume !(main_~i~6 < main_~MAX~6);main_~str1~6 := main_~str1~6[main_~MAX~6 - 1 := 0];main_~j~6 := 0;main_~i~6 := main_~MAX~6 - 1; {3700#(and (= ULTIMATE.start_main_~j~6 0) (<= ULTIMATE.start_main_~MAX~6 11) (<= 11 ULTIMATE.start_main_~MAX~6))} is VALID [2019-01-31 14:58:36,195 INFO L273 TraceCheckUtils]: 13: Hoare triple {3700#(and (= ULTIMATE.start_main_~j~6 0) (<= ULTIMATE.start_main_~MAX~6 11) (<= 11 ULTIMATE.start_main_~MAX~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {3704#(and (= ULTIMATE.start_main_~j~6 1) (<= ULTIMATE.start_main_~MAX~6 11) (<= 11 ULTIMATE.start_main_~MAX~6))} is VALID [2019-01-31 14:58:36,196 INFO L273 TraceCheckUtils]: 14: Hoare triple {3704#(and (= ULTIMATE.start_main_~j~6 1) (<= ULTIMATE.start_main_~MAX~6 11) (<= 11 ULTIMATE.start_main_~MAX~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {3708#(and (<= ULTIMATE.start_main_~MAX~6 11) (= ULTIMATE.start_main_~j~6 2) (<= 11 ULTIMATE.start_main_~MAX~6))} is VALID [2019-01-31 14:58:36,196 INFO L273 TraceCheckUtils]: 15: Hoare triple {3708#(and (<= ULTIMATE.start_main_~MAX~6 11) (= ULTIMATE.start_main_~j~6 2) (<= 11 ULTIMATE.start_main_~MAX~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {3712#(and (= ULTIMATE.start_main_~j~6 3) (<= ULTIMATE.start_main_~MAX~6 11) (<= 11 ULTIMATE.start_main_~MAX~6))} is VALID [2019-01-31 14:58:36,197 INFO L273 TraceCheckUtils]: 16: Hoare triple {3712#(and (= ULTIMATE.start_main_~j~6 3) (<= ULTIMATE.start_main_~MAX~6 11) (<= 11 ULTIMATE.start_main_~MAX~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {3716#(and (= ULTIMATE.start_main_~j~6 4) (<= ULTIMATE.start_main_~MAX~6 11) (<= 11 ULTIMATE.start_main_~MAX~6))} is VALID [2019-01-31 14:58:36,198 INFO L273 TraceCheckUtils]: 17: Hoare triple {3716#(and (= ULTIMATE.start_main_~j~6 4) (<= ULTIMATE.start_main_~MAX~6 11) (<= 11 ULTIMATE.start_main_~MAX~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {3720#(and (= ULTIMATE.start_main_~j~6 5) (<= ULTIMATE.start_main_~MAX~6 11) (<= 11 ULTIMATE.start_main_~MAX~6))} is VALID [2019-01-31 14:58:36,199 INFO L273 TraceCheckUtils]: 18: Hoare triple {3720#(and (= ULTIMATE.start_main_~j~6 5) (<= ULTIMATE.start_main_~MAX~6 11) (<= 11 ULTIMATE.start_main_~MAX~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {3724#(and (<= ULTIMATE.start_main_~MAX~6 11) (<= 11 ULTIMATE.start_main_~MAX~6) (= ULTIMATE.start_main_~j~6 6))} is VALID [2019-01-31 14:58:36,200 INFO L273 TraceCheckUtils]: 19: Hoare triple {3724#(and (<= ULTIMATE.start_main_~MAX~6 11) (<= 11 ULTIMATE.start_main_~MAX~6) (= ULTIMATE.start_main_~j~6 6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {3728#(and (= ULTIMATE.start_main_~j~6 7) (<= ULTIMATE.start_main_~MAX~6 11) (<= 11 ULTIMATE.start_main_~MAX~6))} is VALID [2019-01-31 14:58:36,200 INFO L273 TraceCheckUtils]: 20: Hoare triple {3728#(and (= ULTIMATE.start_main_~j~6 7) (<= ULTIMATE.start_main_~MAX~6 11) (<= 11 ULTIMATE.start_main_~MAX~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {3732#(and (= ULTIMATE.start_main_~j~6 8) (<= ULTIMATE.start_main_~MAX~6 11) (<= 11 ULTIMATE.start_main_~MAX~6))} is VALID [2019-01-31 14:58:36,201 INFO L273 TraceCheckUtils]: 21: Hoare triple {3732#(and (= ULTIMATE.start_main_~j~6 8) (<= ULTIMATE.start_main_~MAX~6 11) (<= 11 ULTIMATE.start_main_~MAX~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {3736#(and (= ULTIMATE.start_main_~j~6 9) (<= ULTIMATE.start_main_~MAX~6 11) (<= 11 ULTIMATE.start_main_~MAX~6))} is VALID [2019-01-31 14:58:36,202 INFO L273 TraceCheckUtils]: 22: Hoare triple {3736#(and (= ULTIMATE.start_main_~j~6 9) (<= ULTIMATE.start_main_~MAX~6 11) (<= 11 ULTIMATE.start_main_~MAX~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {3740#(and (= ULTIMATE.start_main_~j~6 10) (<= ULTIMATE.start_main_~MAX~6 11) (<= 11 ULTIMATE.start_main_~MAX~6))} is VALID [2019-01-31 14:58:36,203 INFO L273 TraceCheckUtils]: 23: Hoare triple {3740#(and (= ULTIMATE.start_main_~j~6 10) (<= ULTIMATE.start_main_~MAX~6 11) (<= 11 ULTIMATE.start_main_~MAX~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {3744#(and (= (select ULTIMATE.start_main_~str2~6 10) (select ULTIMATE.start_main_~str1~6 0)) (<= ULTIMATE.start_main_~MAX~6 11) (<= 11 ULTIMATE.start_main_~MAX~6))} is VALID [2019-01-31 14:58:36,204 INFO L273 TraceCheckUtils]: 24: Hoare triple {3744#(and (= (select ULTIMATE.start_main_~str2~6 10) (select ULTIMATE.start_main_~str1~6 0)) (<= ULTIMATE.start_main_~MAX~6 11) (<= 11 ULTIMATE.start_main_~MAX~6))} assume !(main_~i~6 >= 0);main_~j~6 := main_~MAX~6 - 1;main_~i~6 := 0;assume !!(main_~i~6 < main_~MAX~6);__VERIFIER_assert_#in~cond := (if main_~str1~6[main_~i~6] == main_~str2~6[main_~j~6] then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond;assume __VERIFIER_assert_~cond == 0;assume !false; {3634#false} is VALID [2019-01-31 14:58:36,204 INFO L273 TraceCheckUtils]: 25: Hoare triple {3634#false} assume !false; {3634#false} is VALID [2019-01-31 14:58:36,206 INFO L134 CoverageAnalysis]: Checked inductivity of 132 backedges. 0 proven. 132 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-31 14:58:36,207 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2019-01-31 14:58:36,236 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 5 [2019-01-31 14:58:36,238 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-01-31 14:58:36,242 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-31 14:58:36,242 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:14, output treesize:5 [2019-01-31 14:58:36,244 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-01-31 14:58:36,245 WARN L398 uantifierElimination]: Input elimination task: ∀ [ULTIMATE.start_main_~str2~6, ULTIMATE.start_main_~str1~6]. (let ((.cse0 (select ULTIMATE.start_main_~str1~6 0))) (= .cse0 (select (store ULTIMATE.start_main_~str2~6 ULTIMATE.start_main_~j~6 .cse0) (+ ULTIMATE.start_main_~MAX~6 (- 1))))) [2019-01-31 14:58:36,245 WARN L399 uantifierElimination]: ElimStorePlain result: ∀ []. (= (+ ULTIMATE.start_main_~j~6 1) ULTIMATE.start_main_~MAX~6) [2019-01-31 14:58:36,398 INFO L273 TraceCheckUtils]: 25: Hoare triple {3634#false} assume !false; {3634#false} is VALID [2019-01-31 14:58:36,399 INFO L273 TraceCheckUtils]: 24: Hoare triple {3658#(= (select ULTIMATE.start_main_~str1~6 0) (select ULTIMATE.start_main_~str2~6 (+ ULTIMATE.start_main_~MAX~6 (- 1))))} assume !(main_~i~6 >= 0);main_~j~6 := main_~MAX~6 - 1;main_~i~6 := 0;assume !!(main_~i~6 < main_~MAX~6);__VERIFIER_assert_#in~cond := (if main_~str1~6[main_~i~6] == main_~str2~6[main_~j~6] then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond;assume __VERIFIER_assert_~cond == 0;assume !false; {3634#false} is VALID [2019-01-31 14:58:36,400 INFO L273 TraceCheckUtils]: 23: Hoare triple {3657#(= (+ ULTIMATE.start_main_~j~6 1) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {3658#(= (select ULTIMATE.start_main_~str1~6 0) (select ULTIMATE.start_main_~str2~6 (+ ULTIMATE.start_main_~MAX~6 (- 1))))} is VALID [2019-01-31 14:58:36,401 INFO L273 TraceCheckUtils]: 22: Hoare triple {3656#(= (+ ULTIMATE.start_main_~j~6 2) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {3657#(= (+ ULTIMATE.start_main_~j~6 1) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:58:36,402 INFO L273 TraceCheckUtils]: 21: Hoare triple {3655#(= (+ ULTIMATE.start_main_~j~6 3) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {3656#(= (+ ULTIMATE.start_main_~j~6 2) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:58:36,403 INFO L273 TraceCheckUtils]: 20: Hoare triple {3654#(= (+ ULTIMATE.start_main_~j~6 4) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {3655#(= (+ ULTIMATE.start_main_~j~6 3) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:58:36,404 INFO L273 TraceCheckUtils]: 19: Hoare triple {3653#(= (+ ULTIMATE.start_main_~j~6 5) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {3654#(= (+ ULTIMATE.start_main_~j~6 4) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:58:36,405 INFO L273 TraceCheckUtils]: 18: Hoare triple {3652#(= (+ ULTIMATE.start_main_~j~6 6) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {3653#(= (+ ULTIMATE.start_main_~j~6 5) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:58:36,406 INFO L273 TraceCheckUtils]: 17: Hoare triple {3651#(= (+ ULTIMATE.start_main_~j~6 7) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {3652#(= (+ ULTIMATE.start_main_~j~6 6) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:58:36,407 INFO L273 TraceCheckUtils]: 16: Hoare triple {3650#(= (+ ULTIMATE.start_main_~j~6 8) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {3651#(= (+ ULTIMATE.start_main_~j~6 7) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:58:36,408 INFO L273 TraceCheckUtils]: 15: Hoare triple {3649#(= (+ ULTIMATE.start_main_~j~6 9) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {3650#(= (+ ULTIMATE.start_main_~j~6 8) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:58:36,409 INFO L273 TraceCheckUtils]: 14: Hoare triple {3648#(= (+ ULTIMATE.start_main_~j~6 10) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {3649#(= (+ ULTIMATE.start_main_~j~6 9) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:58:36,410 INFO L273 TraceCheckUtils]: 13: Hoare triple {3647#(= (+ ULTIMATE.start_main_~j~6 11) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {3648#(= (+ ULTIMATE.start_main_~j~6 10) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:58:36,411 INFO L273 TraceCheckUtils]: 12: Hoare triple {3646#(or (<= (+ ULTIMATE.start_main_~i~6 1) ULTIMATE.start_main_~MAX~6) (= 11 ULTIMATE.start_main_~MAX~6))} assume !(main_~i~6 < main_~MAX~6);main_~str1~6 := main_~str1~6[main_~MAX~6 - 1 := 0];main_~j~6 := 0;main_~i~6 := main_~MAX~6 - 1; {3647#(= (+ ULTIMATE.start_main_~j~6 11) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:58:36,412 INFO L273 TraceCheckUtils]: 11: Hoare triple {3692#(and (<= ULTIMATE.start_main_~i~6 10) (<= 10 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {3646#(or (<= (+ ULTIMATE.start_main_~i~6 1) ULTIMATE.start_main_~MAX~6) (= 11 ULTIMATE.start_main_~MAX~6))} is VALID [2019-01-31 14:58:36,413 INFO L273 TraceCheckUtils]: 10: Hoare triple {3644#(and (<= ULTIMATE.start_main_~i~6 9) (<= 9 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {3692#(and (<= ULTIMATE.start_main_~i~6 10) (<= 10 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:58:36,414 INFO L273 TraceCheckUtils]: 9: Hoare triple {3643#(and (<= ULTIMATE.start_main_~i~6 8) (<= 8 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {3644#(and (<= ULTIMATE.start_main_~i~6 9) (<= 9 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:58:36,415 INFO L273 TraceCheckUtils]: 8: Hoare triple {3642#(and (<= 7 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 7))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {3643#(and (<= ULTIMATE.start_main_~i~6 8) (<= 8 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:58:36,415 INFO L273 TraceCheckUtils]: 7: Hoare triple {3641#(and (<= ULTIMATE.start_main_~i~6 6) (<= 6 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {3642#(and (<= 7 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 7))} is VALID [2019-01-31 14:58:36,416 INFO L273 TraceCheckUtils]: 6: Hoare triple {3640#(and (<= 5 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 5))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {3641#(and (<= ULTIMATE.start_main_~i~6 6) (<= 6 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:58:36,417 INFO L273 TraceCheckUtils]: 5: Hoare triple {3639#(and (<= ULTIMATE.start_main_~i~6 4) (<= 4 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {3640#(and (<= 5 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 5))} is VALID [2019-01-31 14:58:36,418 INFO L273 TraceCheckUtils]: 4: Hoare triple {3638#(and (<= 3 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 3))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {3639#(and (<= ULTIMATE.start_main_~i~6 4) (<= 4 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:58:36,419 INFO L273 TraceCheckUtils]: 3: Hoare triple {3637#(and (<= ULTIMATE.start_main_~i~6 2) (<= 2 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {3638#(and (<= 3 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 3))} is VALID [2019-01-31 14:58:36,420 INFO L273 TraceCheckUtils]: 2: Hoare triple {3636#(and (<= ULTIMATE.start_main_~i~6 1) (<= 1 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {3637#(and (<= ULTIMATE.start_main_~i~6 2) (<= 2 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:58:36,421 INFO L273 TraceCheckUtils]: 1: Hoare triple {3635#(and (<= ULTIMATE.start_main_~i~6 0) (<= 0 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {3636#(and (<= ULTIMATE.start_main_~i~6 1) (<= 1 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:58:36,422 INFO L273 TraceCheckUtils]: 0: Hoare triple {3633#true} havoc main_#res;havoc main_#t~nondet0, main_#t~nondet2, main_#t~post1, main_#t~post4, main_#t~post3, main_#t~post6, main_#t~post5, main_~MAX~6, main_~str1~6, main_~str2~6, main_~cont~6, main_~i~6, main_~j~6;main_~MAX~6 := (if main_#t~nondet0 % 4294967296 % 4294967296 <= 2147483647 then main_#t~nondet0 % 4294967296 % 4294967296 else main_#t~nondet0 % 4294967296 % 4294967296 - 4294967296);havoc main_#t~nondet0;havoc main_~str1~6;havoc main_~str2~6;havoc main_~cont~6;havoc main_~i~6;havoc main_~j~6;main_~cont~6 := 0;main_~i~6 := 0; {3635#(and (<= ULTIMATE.start_main_~i~6 0) (<= 0 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:58:36,424 INFO L134 CoverageAnalysis]: Checked inductivity of 132 backedges. 0 proven. 132 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-31 14:58:36,443 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-01-31 14:58:36,444 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 25, 25] total 39 [2019-01-31 14:58:36,444 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-01-31 14:58:36,444 INFO L78 Accepts]: Start accepts. Automaton has 40 states. Word has length 26 [2019-01-31 14:58:36,444 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-01-31 14:58:36,444 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 40 states. [2019-01-31 14:58:36,485 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 41 edges. 41 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-01-31 14:58:36,485 INFO L459 AbstractCegarLoop]: Interpolant automaton has 40 states [2019-01-31 14:58:36,485 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2019-01-31 14:58:36,486 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=115, Invalid=1445, Unknown=0, NotChecked=0, Total=1560 [2019-01-31 14:58:36,486 INFO L87 Difference]: Start difference. First operand 27 states and 28 transitions. Second operand 40 states. [2019-01-31 14:58:39,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 14:58:39,531 INFO L93 Difference]: Finished difference Result 42 states and 44 transitions. [2019-01-31 14:58:39,531 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2019-01-31 14:58:39,531 INFO L78 Accepts]: Start accepts. Automaton has 40 states. Word has length 26 [2019-01-31 14:58:39,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-31 14:58:39,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2019-01-31 14:58:39,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 34 transitions. [2019-01-31 14:58:39,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2019-01-31 14:58:39,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 34 transitions. [2019-01-31 14:58:39,533 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 29 states and 34 transitions. [2019-01-31 14:58:39,578 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 34 edges. 34 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-01-31 14:58:39,579 INFO L225 Difference]: With dead ends: 42 [2019-01-31 14:58:39,579 INFO L226 Difference]: Without dead ends: 28 [2019-01-31 14:58:39,581 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 30 SyntacticMatches, 7 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 408 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=244, Invalid=2618, Unknown=0, NotChecked=0, Total=2862 [2019-01-31 14:58:39,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2019-01-31 14:58:40,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2019-01-31 14:58:40,082 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-01-31 14:58:40,082 INFO L82 GeneralOperation]: Start isEquivalent. First operand 28 states. Second operand 28 states. [2019-01-31 14:58:40,082 INFO L74 IsIncluded]: Start isIncluded. First operand 28 states. Second operand 28 states. [2019-01-31 14:58:40,082 INFO L87 Difference]: Start difference. First operand 28 states. Second operand 28 states. [2019-01-31 14:58:40,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 14:58:40,083 INFO L93 Difference]: Finished difference Result 28 states and 29 transitions. [2019-01-31 14:58:40,083 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 29 transitions. [2019-01-31 14:58:40,084 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-31 14:58:40,084 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-01-31 14:58:40,084 INFO L74 IsIncluded]: Start isIncluded. First operand 28 states. Second operand 28 states. [2019-01-31 14:58:40,084 INFO L87 Difference]: Start difference. First operand 28 states. Second operand 28 states. [2019-01-31 14:58:40,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 14:58:40,084 INFO L93 Difference]: Finished difference Result 28 states and 29 transitions. [2019-01-31 14:58:40,085 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 29 transitions. [2019-01-31 14:58:40,085 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-31 14:58:40,085 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-01-31 14:58:40,085 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-01-31 14:58:40,085 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-01-31 14:58:40,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2019-01-31 14:58:40,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 29 transitions. [2019-01-31 14:58:40,086 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 29 transitions. Word has length 26 [2019-01-31 14:58:40,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-31 14:58:40,086 INFO L480 AbstractCegarLoop]: Abstraction has 28 states and 29 transitions. [2019-01-31 14:58:40,086 INFO L481 AbstractCegarLoop]: Interpolant automaton has 40 states. [2019-01-31 14:58:40,086 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 29 transitions. [2019-01-31 14:58:40,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-01-31 14:58:40,087 INFO L394 BasicCegarLoop]: Found error trace [2019-01-31 14:58:40,087 INFO L402 BasicCegarLoop]: trace histogram [12, 11, 1, 1, 1, 1] [2019-01-31 14:58:40,087 INFO L423 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2019-01-31 14:58:40,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-31 14:58:40,088 INFO L82 PathProgramCache]: Analyzing trace with hash -568862196, now seen corresponding path program 17 times [2019-01-31 14:58:40,088 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-01-31 14:58:40,088 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-31 14:58:40,088 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-31 14:58:40,088 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-31 14:58:40,089 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-01-31 14:58:40,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-31 14:58:40,728 INFO L273 TraceCheckUtils]: 0: Hoare triple {4044#true} havoc main_#res;havoc main_#t~nondet0, main_#t~nondet2, main_#t~post1, main_#t~post4, main_#t~post3, main_#t~post6, main_#t~post5, main_~MAX~6, main_~str1~6, main_~str2~6, main_~cont~6, main_~i~6, main_~j~6;main_~MAX~6 := (if main_#t~nondet0 % 4294967296 % 4294967296 <= 2147483647 then main_#t~nondet0 % 4294967296 % 4294967296 else main_#t~nondet0 % 4294967296 % 4294967296 - 4294967296);havoc main_#t~nondet0;havoc main_~str1~6;havoc main_~str2~6;havoc main_~cont~6;havoc main_~i~6;havoc main_~j~6;main_~cont~6 := 0;main_~i~6 := 0; {4046#(<= 0 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:40,730 INFO L273 TraceCheckUtils]: 1: Hoare triple {4046#(<= 0 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {4047#(<= 1 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:40,731 INFO L273 TraceCheckUtils]: 2: Hoare triple {4047#(<= 1 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {4048#(<= 2 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:40,731 INFO L273 TraceCheckUtils]: 3: Hoare triple {4048#(<= 2 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {4049#(<= 3 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:40,732 INFO L273 TraceCheckUtils]: 4: Hoare triple {4049#(<= 3 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {4050#(<= 4 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:40,733 INFO L273 TraceCheckUtils]: 5: Hoare triple {4050#(<= 4 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {4051#(<= 5 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:40,734 INFO L273 TraceCheckUtils]: 6: Hoare triple {4051#(<= 5 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {4052#(<= 6 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:40,735 INFO L273 TraceCheckUtils]: 7: Hoare triple {4052#(<= 6 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {4053#(<= 7 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:40,736 INFO L273 TraceCheckUtils]: 8: Hoare triple {4053#(<= 7 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {4054#(<= 8 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:40,737 INFO L273 TraceCheckUtils]: 9: Hoare triple {4054#(<= 8 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {4055#(<= 9 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:40,738 INFO L273 TraceCheckUtils]: 10: Hoare triple {4055#(<= 9 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {4056#(<= 10 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:40,739 INFO L273 TraceCheckUtils]: 11: Hoare triple {4056#(<= 10 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {4057#(<= 11 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:40,740 INFO L273 TraceCheckUtils]: 12: Hoare triple {4057#(<= 11 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {4058#(<= 12 ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:58:40,740 INFO L273 TraceCheckUtils]: 13: Hoare triple {4058#(<= 12 ULTIMATE.start_main_~MAX~6)} assume !(main_~i~6 < main_~MAX~6);main_~str1~6 := main_~str1~6[main_~MAX~6 - 1 := 0];main_~j~6 := 0;main_~i~6 := main_~MAX~6 - 1; {4057#(<= 11 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:40,741 INFO L273 TraceCheckUtils]: 14: Hoare triple {4057#(<= 11 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {4056#(<= 10 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:40,742 INFO L273 TraceCheckUtils]: 15: Hoare triple {4056#(<= 10 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {4055#(<= 9 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:40,761 INFO L273 TraceCheckUtils]: 16: Hoare triple {4055#(<= 9 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {4054#(<= 8 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:40,774 INFO L273 TraceCheckUtils]: 17: Hoare triple {4054#(<= 8 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {4053#(<= 7 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:40,783 INFO L273 TraceCheckUtils]: 18: Hoare triple {4053#(<= 7 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {4052#(<= 6 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:40,797 INFO L273 TraceCheckUtils]: 19: Hoare triple {4052#(<= 6 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {4051#(<= 5 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:40,806 INFO L273 TraceCheckUtils]: 20: Hoare triple {4051#(<= 5 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {4050#(<= 4 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:40,810 INFO L273 TraceCheckUtils]: 21: Hoare triple {4050#(<= 4 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {4049#(<= 3 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:40,811 INFO L273 TraceCheckUtils]: 22: Hoare triple {4049#(<= 3 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {4048#(<= 2 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:40,811 INFO L273 TraceCheckUtils]: 23: Hoare triple {4048#(<= 2 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {4047#(<= 1 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:40,812 INFO L273 TraceCheckUtils]: 24: Hoare triple {4047#(<= 1 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {4046#(<= 0 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:40,812 INFO L273 TraceCheckUtils]: 25: Hoare triple {4046#(<= 0 ULTIMATE.start_main_~i~6)} assume !(main_~i~6 >= 0);main_~j~6 := main_~MAX~6 - 1;main_~i~6 := 0;assume !!(main_~i~6 < main_~MAX~6);__VERIFIER_assert_#in~cond := (if main_~str1~6[main_~i~6] == main_~str2~6[main_~j~6] then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond;assume __VERIFIER_assert_~cond == 0;assume !false; {4045#false} is VALID [2019-01-31 14:58:40,812 INFO L273 TraceCheckUtils]: 26: Hoare triple {4045#false} assume !false; {4045#false} is VALID [2019-01-31 14:58:40,813 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 66 proven. 78 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-31 14:58:40,813 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-31 14:58:40,813 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-01-31 14:58:40,813 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-01-31 14:58:40,813 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-01-31 14:58:40,814 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-31 14:58:40,814 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-01-31 14:58:40,826 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2019-01-31 14:58:40,826 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST2 (IT: FPandBP) [2019-01-31 14:58:40,862 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2019-01-31 14:58:40,862 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-01-31 14:58:40,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-31 14:58:40,875 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-31 14:58:40,992 INFO L273 TraceCheckUtils]: 0: Hoare triple {4044#true} havoc main_#res;havoc main_#t~nondet0, main_#t~nondet2, main_#t~post1, main_#t~post4, main_#t~post3, main_#t~post6, main_#t~post5, main_~MAX~6, main_~str1~6, main_~str2~6, main_~cont~6, main_~i~6, main_~j~6;main_~MAX~6 := (if main_#t~nondet0 % 4294967296 % 4294967296 <= 2147483647 then main_#t~nondet0 % 4294967296 % 4294967296 else main_#t~nondet0 % 4294967296 % 4294967296 - 4294967296);havoc main_#t~nondet0;havoc main_~str1~6;havoc main_~str2~6;havoc main_~cont~6;havoc main_~i~6;havoc main_~j~6;main_~cont~6 := 0;main_~i~6 := 0; {4046#(<= 0 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:41,013 INFO L273 TraceCheckUtils]: 1: Hoare triple {4046#(<= 0 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {4047#(<= 1 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:41,022 INFO L273 TraceCheckUtils]: 2: Hoare triple {4047#(<= 1 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {4048#(<= 2 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:41,025 INFO L273 TraceCheckUtils]: 3: Hoare triple {4048#(<= 2 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {4049#(<= 3 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:41,026 INFO L273 TraceCheckUtils]: 4: Hoare triple {4049#(<= 3 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {4050#(<= 4 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:41,026 INFO L273 TraceCheckUtils]: 5: Hoare triple {4050#(<= 4 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {4051#(<= 5 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:41,029 INFO L273 TraceCheckUtils]: 6: Hoare triple {4051#(<= 5 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {4052#(<= 6 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:41,029 INFO L273 TraceCheckUtils]: 7: Hoare triple {4052#(<= 6 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {4053#(<= 7 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:41,030 INFO L273 TraceCheckUtils]: 8: Hoare triple {4053#(<= 7 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {4054#(<= 8 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:41,031 INFO L273 TraceCheckUtils]: 9: Hoare triple {4054#(<= 8 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {4055#(<= 9 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:41,032 INFO L273 TraceCheckUtils]: 10: Hoare triple {4055#(<= 9 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {4056#(<= 10 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:41,033 INFO L273 TraceCheckUtils]: 11: Hoare triple {4056#(<= 10 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {4057#(<= 11 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:41,034 INFO L273 TraceCheckUtils]: 12: Hoare triple {4057#(<= 11 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {4058#(<= 12 ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:58:41,034 INFO L273 TraceCheckUtils]: 13: Hoare triple {4058#(<= 12 ULTIMATE.start_main_~MAX~6)} assume !(main_~i~6 < main_~MAX~6);main_~str1~6 := main_~str1~6[main_~MAX~6 - 1 := 0];main_~j~6 := 0;main_~i~6 := main_~MAX~6 - 1; {4057#(<= 11 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:41,035 INFO L273 TraceCheckUtils]: 14: Hoare triple {4057#(<= 11 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {4056#(<= 10 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:41,036 INFO L273 TraceCheckUtils]: 15: Hoare triple {4056#(<= 10 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {4055#(<= 9 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:41,037 INFO L273 TraceCheckUtils]: 16: Hoare triple {4055#(<= 9 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {4054#(<= 8 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:41,038 INFO L273 TraceCheckUtils]: 17: Hoare triple {4054#(<= 8 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {4053#(<= 7 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:41,039 INFO L273 TraceCheckUtils]: 18: Hoare triple {4053#(<= 7 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {4052#(<= 6 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:41,040 INFO L273 TraceCheckUtils]: 19: Hoare triple {4052#(<= 6 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {4051#(<= 5 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:41,041 INFO L273 TraceCheckUtils]: 20: Hoare triple {4051#(<= 5 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {4050#(<= 4 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:41,042 INFO L273 TraceCheckUtils]: 21: Hoare triple {4050#(<= 4 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {4049#(<= 3 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:41,042 INFO L273 TraceCheckUtils]: 22: Hoare triple {4049#(<= 3 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {4048#(<= 2 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:41,043 INFO L273 TraceCheckUtils]: 23: Hoare triple {4048#(<= 2 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {4047#(<= 1 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:41,044 INFO L273 TraceCheckUtils]: 24: Hoare triple {4047#(<= 1 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {4046#(<= 0 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:41,045 INFO L273 TraceCheckUtils]: 25: Hoare triple {4046#(<= 0 ULTIMATE.start_main_~i~6)} assume !(main_~i~6 >= 0);main_~j~6 := main_~MAX~6 - 1;main_~i~6 := 0;assume !!(main_~i~6 < main_~MAX~6);__VERIFIER_assert_#in~cond := (if main_~str1~6[main_~i~6] == main_~str2~6[main_~j~6] then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond;assume __VERIFIER_assert_~cond == 0;assume !false; {4045#false} is VALID [2019-01-31 14:58:41,045 INFO L273 TraceCheckUtils]: 26: Hoare triple {4045#false} assume !false; {4045#false} is VALID [2019-01-31 14:58:41,046 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 66 proven. 78 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-31 14:58:41,046 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2019-01-31 14:58:41,336 INFO L273 TraceCheckUtils]: 26: Hoare triple {4045#false} assume !false; {4045#false} is VALID [2019-01-31 14:58:41,337 INFO L273 TraceCheckUtils]: 25: Hoare triple {4046#(<= 0 ULTIMATE.start_main_~i~6)} assume !(main_~i~6 >= 0);main_~j~6 := main_~MAX~6 - 1;main_~i~6 := 0;assume !!(main_~i~6 < main_~MAX~6);__VERIFIER_assert_#in~cond := (if main_~str1~6[main_~i~6] == main_~str2~6[main_~j~6] then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond;assume __VERIFIER_assert_~cond == 0;assume !false; {4045#false} is VALID [2019-01-31 14:58:41,338 INFO L273 TraceCheckUtils]: 24: Hoare triple {4047#(<= 1 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {4046#(<= 0 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:41,339 INFO L273 TraceCheckUtils]: 23: Hoare triple {4048#(<= 2 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {4047#(<= 1 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:41,339 INFO L273 TraceCheckUtils]: 22: Hoare triple {4049#(<= 3 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {4048#(<= 2 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:41,340 INFO L273 TraceCheckUtils]: 21: Hoare triple {4050#(<= 4 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {4049#(<= 3 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:41,340 INFO L273 TraceCheckUtils]: 20: Hoare triple {4051#(<= 5 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {4050#(<= 4 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:41,341 INFO L273 TraceCheckUtils]: 19: Hoare triple {4052#(<= 6 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {4051#(<= 5 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:41,342 INFO L273 TraceCheckUtils]: 18: Hoare triple {4053#(<= 7 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {4052#(<= 6 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:41,343 INFO L273 TraceCheckUtils]: 17: Hoare triple {4054#(<= 8 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {4053#(<= 7 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:41,344 INFO L273 TraceCheckUtils]: 16: Hoare triple {4055#(<= 9 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {4054#(<= 8 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:41,345 INFO L273 TraceCheckUtils]: 15: Hoare triple {4056#(<= 10 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {4055#(<= 9 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:41,346 INFO L273 TraceCheckUtils]: 14: Hoare triple {4057#(<= 11 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {4056#(<= 10 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:41,347 INFO L273 TraceCheckUtils]: 13: Hoare triple {4058#(<= 12 ULTIMATE.start_main_~MAX~6)} assume !(main_~i~6 < main_~MAX~6);main_~str1~6 := main_~str1~6[main_~MAX~6 - 1 := 0];main_~j~6 := 0;main_~i~6 := main_~MAX~6 - 1; {4057#(<= 11 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:41,347 INFO L273 TraceCheckUtils]: 12: Hoare triple {4057#(<= 11 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {4058#(<= 12 ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:58:41,348 INFO L273 TraceCheckUtils]: 11: Hoare triple {4056#(<= 10 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {4057#(<= 11 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:41,349 INFO L273 TraceCheckUtils]: 10: Hoare triple {4055#(<= 9 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {4056#(<= 10 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:41,350 INFO L273 TraceCheckUtils]: 9: Hoare triple {4054#(<= 8 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {4055#(<= 9 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:41,351 INFO L273 TraceCheckUtils]: 8: Hoare triple {4053#(<= 7 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {4054#(<= 8 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:41,352 INFO L273 TraceCheckUtils]: 7: Hoare triple {4052#(<= 6 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {4053#(<= 7 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:41,353 INFO L273 TraceCheckUtils]: 6: Hoare triple {4051#(<= 5 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {4052#(<= 6 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:41,354 INFO L273 TraceCheckUtils]: 5: Hoare triple {4050#(<= 4 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {4051#(<= 5 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:41,354 INFO L273 TraceCheckUtils]: 4: Hoare triple {4049#(<= 3 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {4050#(<= 4 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:41,355 INFO L273 TraceCheckUtils]: 3: Hoare triple {4048#(<= 2 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {4049#(<= 3 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:41,356 INFO L273 TraceCheckUtils]: 2: Hoare triple {4047#(<= 1 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {4048#(<= 2 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:41,357 INFO L273 TraceCheckUtils]: 1: Hoare triple {4046#(<= 0 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {4047#(<= 1 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:41,358 INFO L273 TraceCheckUtils]: 0: Hoare triple {4044#true} havoc main_#res;havoc main_#t~nondet0, main_#t~nondet2, main_#t~post1, main_#t~post4, main_#t~post3, main_#t~post6, main_#t~post5, main_~MAX~6, main_~str1~6, main_~str2~6, main_~cont~6, main_~i~6, main_~j~6;main_~MAX~6 := (if main_#t~nondet0 % 4294967296 % 4294967296 <= 2147483647 then main_#t~nondet0 % 4294967296 % 4294967296 else main_#t~nondet0 % 4294967296 % 4294967296 - 4294967296);havoc main_#t~nondet0;havoc main_~str1~6;havoc main_~str2~6;havoc main_~cont~6;havoc main_~i~6;havoc main_~j~6;main_~cont~6 := 0;main_~i~6 := 0; {4046#(<= 0 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:41,359 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 66 proven. 78 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-31 14:58:41,378 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-01-31 14:58:41,378 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14, 14] total 14 [2019-01-31 14:58:41,378 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-01-31 14:58:41,379 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 27 [2019-01-31 14:58:41,379 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-01-31 14:58:41,379 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 15 states. [2019-01-31 14:58:41,408 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 27 edges. 27 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-01-31 14:58:41,408 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2019-01-31 14:58:41,408 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2019-01-31 14:58:41,409 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=117, Unknown=0, NotChecked=0, Total=210 [2019-01-31 14:58:41,409 INFO L87 Difference]: Start difference. First operand 28 states and 29 transitions. Second operand 15 states. [2019-01-31 14:58:41,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 14:58:41,994 INFO L93 Difference]: Finished difference Result 31 states and 32 transitions. [2019-01-31 14:58:41,994 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2019-01-31 14:58:41,994 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 27 [2019-01-31 14:58:41,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-31 14:58:41,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2019-01-31 14:58:41,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 32 transitions. [2019-01-31 14:58:41,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2019-01-31 14:58:41,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 32 transitions. [2019-01-31 14:58:41,997 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 27 states and 32 transitions. [2019-01-31 14:58:42,037 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 32 edges. 32 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-01-31 14:58:42,038 INFO L225 Difference]: With dead ends: 31 [2019-01-31 14:58:42,038 INFO L226 Difference]: Without dead ends: 29 [2019-01-31 14:58:42,039 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 41 SyntacticMatches, 24 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 264 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=273, Invalid=429, Unknown=0, NotChecked=0, Total=702 [2019-01-31 14:58:42,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2019-01-31 14:58:42,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2019-01-31 14:58:42,361 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-01-31 14:58:42,361 INFO L82 GeneralOperation]: Start isEquivalent. First operand 29 states. Second operand 29 states. [2019-01-31 14:58:42,362 INFO L74 IsIncluded]: Start isIncluded. First operand 29 states. Second operand 29 states. [2019-01-31 14:58:42,362 INFO L87 Difference]: Start difference. First operand 29 states. Second operand 29 states. [2019-01-31 14:58:42,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 14:58:42,363 INFO L93 Difference]: Finished difference Result 29 states and 30 transitions. [2019-01-31 14:58:42,363 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 30 transitions. [2019-01-31 14:58:42,363 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-31 14:58:42,363 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-01-31 14:58:42,364 INFO L74 IsIncluded]: Start isIncluded. First operand 29 states. Second operand 29 states. [2019-01-31 14:58:42,364 INFO L87 Difference]: Start difference. First operand 29 states. Second operand 29 states. [2019-01-31 14:58:42,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 14:58:42,365 INFO L93 Difference]: Finished difference Result 29 states and 30 transitions. [2019-01-31 14:58:42,365 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 30 transitions. [2019-01-31 14:58:42,365 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-31 14:58:42,365 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-01-31 14:58:42,365 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-01-31 14:58:42,365 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-01-31 14:58:42,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2019-01-31 14:58:42,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 30 transitions. [2019-01-31 14:58:42,366 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 30 transitions. Word has length 27 [2019-01-31 14:58:42,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-31 14:58:42,366 INFO L480 AbstractCegarLoop]: Abstraction has 29 states and 30 transitions. [2019-01-31 14:58:42,366 INFO L481 AbstractCegarLoop]: Interpolant automaton has 15 states. [2019-01-31 14:58:42,366 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 30 transitions. [2019-01-31 14:58:42,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2019-01-31 14:58:42,367 INFO L394 BasicCegarLoop]: Found error trace [2019-01-31 14:58:42,367 INFO L402 BasicCegarLoop]: trace histogram [12, 12, 1, 1, 1, 1] [2019-01-31 14:58:42,367 INFO L423 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2019-01-31 14:58:42,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-31 14:58:42,367 INFO L82 PathProgramCache]: Analyzing trace with hash -454857078, now seen corresponding path program 18 times [2019-01-31 14:58:42,367 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-01-31 14:58:42,368 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-31 14:58:42,368 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-01-31 14:58:42,368 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-31 14:58:42,368 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-01-31 14:58:42,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-31 14:58:43,133 INFO L273 TraceCheckUtils]: 0: Hoare triple {4414#true} havoc main_#res;havoc main_#t~nondet0, main_#t~nondet2, main_#t~post1, main_#t~post4, main_#t~post3, main_#t~post6, main_#t~post5, main_~MAX~6, main_~str1~6, main_~str2~6, main_~cont~6, main_~i~6, main_~j~6;main_~MAX~6 := (if main_#t~nondet0 % 4294967296 % 4294967296 <= 2147483647 then main_#t~nondet0 % 4294967296 % 4294967296 else main_#t~nondet0 % 4294967296 % 4294967296 - 4294967296);havoc main_#t~nondet0;havoc main_~str1~6;havoc main_~str2~6;havoc main_~cont~6;havoc main_~i~6;havoc main_~j~6;main_~cont~6 := 0;main_~i~6 := 0; {4416#(and (<= ULTIMATE.start_main_~i~6 0) (<= 0 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:58:43,134 INFO L273 TraceCheckUtils]: 1: Hoare triple {4416#(and (<= ULTIMATE.start_main_~i~6 0) (<= 0 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {4417#(and (<= ULTIMATE.start_main_~i~6 1) (<= 1 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:58:43,135 INFO L273 TraceCheckUtils]: 2: Hoare triple {4417#(and (<= ULTIMATE.start_main_~i~6 1) (<= 1 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {4418#(and (<= ULTIMATE.start_main_~i~6 2) (<= 2 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:58:43,136 INFO L273 TraceCheckUtils]: 3: Hoare triple {4418#(and (<= ULTIMATE.start_main_~i~6 2) (<= 2 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {4419#(and (<= 3 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 3))} is VALID [2019-01-31 14:58:43,137 INFO L273 TraceCheckUtils]: 4: Hoare triple {4419#(and (<= 3 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 3))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {4420#(and (<= ULTIMATE.start_main_~i~6 4) (<= 4 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:58:43,138 INFO L273 TraceCheckUtils]: 5: Hoare triple {4420#(and (<= ULTIMATE.start_main_~i~6 4) (<= 4 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {4421#(and (<= 5 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 5))} is VALID [2019-01-31 14:58:43,139 INFO L273 TraceCheckUtils]: 6: Hoare triple {4421#(and (<= 5 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 5))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {4422#(and (<= ULTIMATE.start_main_~i~6 6) (<= 6 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:58:43,140 INFO L273 TraceCheckUtils]: 7: Hoare triple {4422#(and (<= ULTIMATE.start_main_~i~6 6) (<= 6 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {4423#(and (<= 7 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 7))} is VALID [2019-01-31 14:58:43,141 INFO L273 TraceCheckUtils]: 8: Hoare triple {4423#(and (<= 7 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 7))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {4424#(and (<= ULTIMATE.start_main_~i~6 8) (<= 8 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:58:43,142 INFO L273 TraceCheckUtils]: 9: Hoare triple {4424#(and (<= ULTIMATE.start_main_~i~6 8) (<= 8 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {4425#(and (<= ULTIMATE.start_main_~i~6 9) (<= 9 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:58:43,143 INFO L273 TraceCheckUtils]: 10: Hoare triple {4425#(and (<= ULTIMATE.start_main_~i~6 9) (<= 9 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {4426#(and (<= ULTIMATE.start_main_~i~6 10) (<= 10 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:58:43,144 INFO L273 TraceCheckUtils]: 11: Hoare triple {4426#(and (<= ULTIMATE.start_main_~i~6 10) (<= 10 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {4427#(or (not (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 1))) (and (<= 11 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 11)))} is VALID [2019-01-31 14:58:43,145 INFO L273 TraceCheckUtils]: 12: Hoare triple {4427#(or (not (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 1))) (and (<= 11 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 11)))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {4428#(or (<= (+ ULTIMATE.start_main_~i~6 1) ULTIMATE.start_main_~MAX~6) (= 12 ULTIMATE.start_main_~MAX~6))} is VALID [2019-01-31 14:58:43,146 INFO L273 TraceCheckUtils]: 13: Hoare triple {4428#(or (<= (+ ULTIMATE.start_main_~i~6 1) ULTIMATE.start_main_~MAX~6) (= 12 ULTIMATE.start_main_~MAX~6))} assume !(main_~i~6 < main_~MAX~6);main_~str1~6 := main_~str1~6[main_~MAX~6 - 1 := 0];main_~j~6 := 0;main_~i~6 := main_~MAX~6 - 1; {4429#(= (+ ULTIMATE.start_main_~j~6 12) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:58:43,147 INFO L273 TraceCheckUtils]: 14: Hoare triple {4429#(= (+ ULTIMATE.start_main_~j~6 12) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {4430#(= (+ ULTIMATE.start_main_~j~6 11) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:58:43,148 INFO L273 TraceCheckUtils]: 15: Hoare triple {4430#(= (+ ULTIMATE.start_main_~j~6 11) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {4431#(= (+ ULTIMATE.start_main_~j~6 10) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:58:43,149 INFO L273 TraceCheckUtils]: 16: Hoare triple {4431#(= (+ ULTIMATE.start_main_~j~6 10) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {4432#(= (+ ULTIMATE.start_main_~j~6 9) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:58:43,150 INFO L273 TraceCheckUtils]: 17: Hoare triple {4432#(= (+ ULTIMATE.start_main_~j~6 9) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {4433#(= (+ ULTIMATE.start_main_~j~6 8) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:58:43,151 INFO L273 TraceCheckUtils]: 18: Hoare triple {4433#(= (+ ULTIMATE.start_main_~j~6 8) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {4434#(= (+ ULTIMATE.start_main_~j~6 7) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:58:43,152 INFO L273 TraceCheckUtils]: 19: Hoare triple {4434#(= (+ ULTIMATE.start_main_~j~6 7) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {4435#(= (+ ULTIMATE.start_main_~j~6 6) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:58:43,153 INFO L273 TraceCheckUtils]: 20: Hoare triple {4435#(= (+ ULTIMATE.start_main_~j~6 6) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {4436#(= (+ ULTIMATE.start_main_~j~6 5) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:58:43,154 INFO L273 TraceCheckUtils]: 21: Hoare triple {4436#(= (+ ULTIMATE.start_main_~j~6 5) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {4437#(= (+ ULTIMATE.start_main_~j~6 4) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:58:43,155 INFO L273 TraceCheckUtils]: 22: Hoare triple {4437#(= (+ ULTIMATE.start_main_~j~6 4) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {4438#(= (+ ULTIMATE.start_main_~j~6 3) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:58:43,156 INFO L273 TraceCheckUtils]: 23: Hoare triple {4438#(= (+ ULTIMATE.start_main_~j~6 3) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {4439#(= (+ ULTIMATE.start_main_~j~6 2) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:58:43,157 INFO L273 TraceCheckUtils]: 24: Hoare triple {4439#(= (+ ULTIMATE.start_main_~j~6 2) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {4440#(= (+ ULTIMATE.start_main_~j~6 1) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:58:43,158 INFO L273 TraceCheckUtils]: 25: Hoare triple {4440#(= (+ ULTIMATE.start_main_~j~6 1) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {4441#(= (select ULTIMATE.start_main_~str1~6 0) (select ULTIMATE.start_main_~str2~6 (+ ULTIMATE.start_main_~MAX~6 (- 1))))} is VALID [2019-01-31 14:58:43,159 INFO L273 TraceCheckUtils]: 26: Hoare triple {4441#(= (select ULTIMATE.start_main_~str1~6 0) (select ULTIMATE.start_main_~str2~6 (+ ULTIMATE.start_main_~MAX~6 (- 1))))} assume !(main_~i~6 >= 0);main_~j~6 := main_~MAX~6 - 1;main_~i~6 := 0;assume !!(main_~i~6 < main_~MAX~6);__VERIFIER_assert_#in~cond := (if main_~str1~6[main_~i~6] == main_~str2~6[main_~j~6] then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond;assume __VERIFIER_assert_~cond == 0;assume !false; {4415#false} is VALID [2019-01-31 14:58:43,159 INFO L273 TraceCheckUtils]: 27: Hoare triple {4415#false} assume !false; {4415#false} is VALID [2019-01-31 14:58:43,161 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 0 proven. 156 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-31 14:58:43,161 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-31 14:58:43,161 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-01-31 14:58:43,161 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-01-31 14:58:43,162 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-01-31 14:58:43,162 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-31 14:58:43,162 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 19 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-01-31 14:58:43,170 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2019-01-31 14:58:43,170 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder TERMS_WITH_SMALL_CONSTANTS_FIRST (IT: FPandBP) [2019-01-31 14:58:43,189 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-01-31 14:58:43,189 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-01-31 14:58:43,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-31 14:58:43,201 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-31 14:58:43,885 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2019-01-31 14:58:43,886 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-01-31 14:58:43,892 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-31 14:58:43,892 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:17, output treesize:16 [2019-01-31 14:58:43,895 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-01-31 14:58:43,895 WARN L398 uantifierElimination]: Input elimination task: ∃ [v_ULTIMATE.start_main_~str2~6_120]. (and (<= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 13)) (<= 12 ULTIMATE.start_main_~MAX~6) (= (store v_ULTIMATE.start_main_~str2~6_120 11 (select ULTIMATE.start_main_~str1~6 0)) ULTIMATE.start_main_~str2~6)) [2019-01-31 14:58:43,895 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (and (<= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 13)) (= (select ULTIMATE.start_main_~str2~6 11) (select ULTIMATE.start_main_~str1~6 0)) (<= 12 ULTIMATE.start_main_~MAX~6)) [2019-01-31 14:58:43,949 INFO L273 TraceCheckUtils]: 0: Hoare triple {4414#true} havoc main_#res;havoc main_#t~nondet0, main_#t~nondet2, main_#t~post1, main_#t~post4, main_#t~post3, main_#t~post6, main_#t~post5, main_~MAX~6, main_~str1~6, main_~str2~6, main_~cont~6, main_~i~6, main_~j~6;main_~MAX~6 := (if main_#t~nondet0 % 4294967296 % 4294967296 <= 2147483647 then main_#t~nondet0 % 4294967296 % 4294967296 else main_#t~nondet0 % 4294967296 % 4294967296 - 4294967296);havoc main_#t~nondet0;havoc main_~str1~6;havoc main_~str2~6;havoc main_~cont~6;havoc main_~i~6;havoc main_~j~6;main_~cont~6 := 0;main_~i~6 := 0; {4414#true} is VALID [2019-01-31 14:58:43,949 INFO L273 TraceCheckUtils]: 1: Hoare triple {4414#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {4414#true} is VALID [2019-01-31 14:58:43,949 INFO L273 TraceCheckUtils]: 2: Hoare triple {4414#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {4414#true} is VALID [2019-01-31 14:58:43,950 INFO L273 TraceCheckUtils]: 3: Hoare triple {4414#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {4414#true} is VALID [2019-01-31 14:58:43,950 INFO L273 TraceCheckUtils]: 4: Hoare triple {4414#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {4414#true} is VALID [2019-01-31 14:58:43,950 INFO L273 TraceCheckUtils]: 5: Hoare triple {4414#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {4414#true} is VALID [2019-01-31 14:58:43,950 INFO L273 TraceCheckUtils]: 6: Hoare triple {4414#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {4414#true} is VALID [2019-01-31 14:58:43,950 INFO L273 TraceCheckUtils]: 7: Hoare triple {4414#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {4414#true} is VALID [2019-01-31 14:58:43,951 INFO L273 TraceCheckUtils]: 8: Hoare triple {4414#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {4414#true} is VALID [2019-01-31 14:58:43,951 INFO L273 TraceCheckUtils]: 9: Hoare triple {4414#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {4414#true} is VALID [2019-01-31 14:58:43,951 INFO L273 TraceCheckUtils]: 10: Hoare triple {4414#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {4414#true} is VALID [2019-01-31 14:58:43,951 INFO L273 TraceCheckUtils]: 11: Hoare triple {4414#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {4414#true} is VALID [2019-01-31 14:58:43,951 INFO L273 TraceCheckUtils]: 12: Hoare triple {4414#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {4414#true} is VALID [2019-01-31 14:58:43,952 INFO L273 TraceCheckUtils]: 13: Hoare triple {4414#true} assume !(main_~i~6 < main_~MAX~6);main_~str1~6 := main_~str1~6[main_~MAX~6 - 1 := 0];main_~j~6 := 0;main_~i~6 := main_~MAX~6 - 1; {4484#(and (= ULTIMATE.start_main_~j~6 0) (= (+ ULTIMATE.start_main_~i~6 1) ULTIMATE.start_main_~MAX~6))} is VALID [2019-01-31 14:58:43,952 INFO L273 TraceCheckUtils]: 14: Hoare triple {4484#(and (= ULTIMATE.start_main_~j~6 0) (= (+ ULTIMATE.start_main_~i~6 1) ULTIMATE.start_main_~MAX~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {4488#(and (= ULTIMATE.start_main_~j~6 1) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 2)))} is VALID [2019-01-31 14:58:43,953 INFO L273 TraceCheckUtils]: 15: Hoare triple {4488#(and (= ULTIMATE.start_main_~j~6 1) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 2)))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {4492#(and (= (+ ULTIMATE.start_main_~i~6 3) ULTIMATE.start_main_~MAX~6) (= ULTIMATE.start_main_~j~6 2))} is VALID [2019-01-31 14:58:43,954 INFO L273 TraceCheckUtils]: 16: Hoare triple {4492#(and (= (+ ULTIMATE.start_main_~i~6 3) ULTIMATE.start_main_~MAX~6) (= ULTIMATE.start_main_~j~6 2))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {4496#(and (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 4)) (= ULTIMATE.start_main_~j~6 3))} is VALID [2019-01-31 14:58:43,954 INFO L273 TraceCheckUtils]: 17: Hoare triple {4496#(and (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 4)) (= ULTIMATE.start_main_~j~6 3))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {4500#(and (= ULTIMATE.start_main_~j~6 4) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 5)))} is VALID [2019-01-31 14:58:43,955 INFO L273 TraceCheckUtils]: 18: Hoare triple {4500#(and (= ULTIMATE.start_main_~j~6 4) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 5)))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {4504#(and (= ULTIMATE.start_main_~j~6 5) (= (+ ULTIMATE.start_main_~i~6 6) ULTIMATE.start_main_~MAX~6))} is VALID [2019-01-31 14:58:43,956 INFO L273 TraceCheckUtils]: 19: Hoare triple {4504#(and (= ULTIMATE.start_main_~j~6 5) (= (+ ULTIMATE.start_main_~i~6 6) ULTIMATE.start_main_~MAX~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {4508#(and (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 7)) (= ULTIMATE.start_main_~j~6 6))} is VALID [2019-01-31 14:58:43,957 INFO L273 TraceCheckUtils]: 20: Hoare triple {4508#(and (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 7)) (= ULTIMATE.start_main_~j~6 6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {4512#(and (= ULTIMATE.start_main_~j~6 7) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 8)))} is VALID [2019-01-31 14:58:43,958 INFO L273 TraceCheckUtils]: 21: Hoare triple {4512#(and (= ULTIMATE.start_main_~j~6 7) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 8)))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {4516#(and (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 9)) (= ULTIMATE.start_main_~j~6 8))} is VALID [2019-01-31 14:58:43,959 INFO L273 TraceCheckUtils]: 22: Hoare triple {4516#(and (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 9)) (= ULTIMATE.start_main_~j~6 8))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {4520#(and (= ULTIMATE.start_main_~j~6 9) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 10)))} is VALID [2019-01-31 14:58:43,960 INFO L273 TraceCheckUtils]: 23: Hoare triple {4520#(and (= ULTIMATE.start_main_~j~6 9) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 10)))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {4524#(and (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 11)) (= ULTIMATE.start_main_~j~6 10))} is VALID [2019-01-31 14:58:43,961 INFO L273 TraceCheckUtils]: 24: Hoare triple {4524#(and (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 11)) (= ULTIMATE.start_main_~j~6 10))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {4528#(and (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 12)) (= ULTIMATE.start_main_~j~6 11))} is VALID [2019-01-31 14:58:43,962 INFO L273 TraceCheckUtils]: 25: Hoare triple {4528#(and (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 12)) (= ULTIMATE.start_main_~j~6 11))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {4532#(and (<= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 13)) (= (select ULTIMATE.start_main_~str2~6 11) (select ULTIMATE.start_main_~str1~6 0)) (<= 12 ULTIMATE.start_main_~MAX~6))} is VALID [2019-01-31 14:58:43,963 INFO L273 TraceCheckUtils]: 26: Hoare triple {4532#(and (<= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 13)) (= (select ULTIMATE.start_main_~str2~6 11) (select ULTIMATE.start_main_~str1~6 0)) (<= 12 ULTIMATE.start_main_~MAX~6))} assume !(main_~i~6 >= 0);main_~j~6 := main_~MAX~6 - 1;main_~i~6 := 0;assume !!(main_~i~6 < main_~MAX~6);__VERIFIER_assert_#in~cond := (if main_~str1~6[main_~i~6] == main_~str2~6[main_~j~6] then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond;assume __VERIFIER_assert_~cond == 0;assume !false; {4415#false} is VALID [2019-01-31 14:58:43,963 INFO L273 TraceCheckUtils]: 27: Hoare triple {4415#false} assume !false; {4415#false} is VALID [2019-01-31 14:58:43,965 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 0 proven. 78 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2019-01-31 14:58:43,965 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2019-01-31 14:58:44,066 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 5 [2019-01-31 14:58:44,068 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-01-31 14:58:44,080 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-31 14:58:44,080 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:22, output treesize:12 [2019-01-31 14:58:44,704 INFO L273 TraceCheckUtils]: 27: Hoare triple {4415#false} assume !false; {4415#false} is VALID [2019-01-31 14:58:44,705 INFO L273 TraceCheckUtils]: 26: Hoare triple {4542#(or (= (select ULTIMATE.start_main_~str1~6 0) (select ULTIMATE.start_main_~str2~6 (+ ULTIMATE.start_main_~MAX~6 (- 1)))) (<= 0 ULTIMATE.start_main_~i~6))} assume !(main_~i~6 >= 0);main_~j~6 := main_~MAX~6 - 1;main_~i~6 := 0;assume !!(main_~i~6 < main_~MAX~6);__VERIFIER_assert_#in~cond := (if main_~str1~6[main_~i~6] == main_~str2~6[main_~j~6] then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond;assume __VERIFIER_assert_~cond == 0;assume !false; {4415#false} is VALID [2019-01-31 14:58:44,706 INFO L273 TraceCheckUtils]: 25: Hoare triple {4546#(or (< ULTIMATE.start_main_~i~6 0) (< 0 ULTIMATE.start_main_~i~6) (= (+ ULTIMATE.start_main_~j~6 1) ULTIMATE.start_main_~MAX~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {4542#(or (= (select ULTIMATE.start_main_~str1~6 0) (select ULTIMATE.start_main_~str2~6 (+ ULTIMATE.start_main_~MAX~6 (- 1)))) (<= 0 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:58:44,707 INFO L273 TraceCheckUtils]: 24: Hoare triple {4550#(or (= (+ ULTIMATE.start_main_~j~6 2) ULTIMATE.start_main_~MAX~6) (< 1 ULTIMATE.start_main_~i~6) (< ULTIMATE.start_main_~i~6 1))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {4546#(or (< ULTIMATE.start_main_~i~6 0) (< 0 ULTIMATE.start_main_~i~6) (= (+ ULTIMATE.start_main_~j~6 1) ULTIMATE.start_main_~MAX~6))} is VALID [2019-01-31 14:58:44,708 INFO L273 TraceCheckUtils]: 23: Hoare triple {4554#(or (= (+ ULTIMATE.start_main_~j~6 3) ULTIMATE.start_main_~MAX~6) (< ULTIMATE.start_main_~i~6 2) (< 2 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {4550#(or (= (+ ULTIMATE.start_main_~j~6 2) ULTIMATE.start_main_~MAX~6) (< 1 ULTIMATE.start_main_~i~6) (< ULTIMATE.start_main_~i~6 1))} is VALID [2019-01-31 14:58:44,710 INFO L273 TraceCheckUtils]: 22: Hoare triple {4558#(or (= (+ ULTIMATE.start_main_~j~6 4) ULTIMATE.start_main_~MAX~6) (< ULTIMATE.start_main_~i~6 3) (< 3 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {4554#(or (= (+ ULTIMATE.start_main_~j~6 3) ULTIMATE.start_main_~MAX~6) (< ULTIMATE.start_main_~i~6 2) (< 2 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:58:44,711 INFO L273 TraceCheckUtils]: 21: Hoare triple {4562#(or (= (+ ULTIMATE.start_main_~j~6 5) ULTIMATE.start_main_~MAX~6) (< 4 ULTIMATE.start_main_~i~6) (< ULTIMATE.start_main_~i~6 4))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {4558#(or (= (+ ULTIMATE.start_main_~j~6 4) ULTIMATE.start_main_~MAX~6) (< ULTIMATE.start_main_~i~6 3) (< 3 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:58:44,712 INFO L273 TraceCheckUtils]: 20: Hoare triple {4566#(or (< ULTIMATE.start_main_~i~6 5) (< 5 ULTIMATE.start_main_~i~6) (= (+ ULTIMATE.start_main_~j~6 6) ULTIMATE.start_main_~MAX~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {4562#(or (= (+ ULTIMATE.start_main_~j~6 5) ULTIMATE.start_main_~MAX~6) (< 4 ULTIMATE.start_main_~i~6) (< ULTIMATE.start_main_~i~6 4))} is VALID [2019-01-31 14:58:44,713 INFO L273 TraceCheckUtils]: 19: Hoare triple {4570#(or (< ULTIMATE.start_main_~i~6 6) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 7)) (< 6 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {4566#(or (< ULTIMATE.start_main_~i~6 5) (< 5 ULTIMATE.start_main_~i~6) (= (+ ULTIMATE.start_main_~j~6 6) ULTIMATE.start_main_~MAX~6))} is VALID [2019-01-31 14:58:44,714 INFO L273 TraceCheckUtils]: 18: Hoare triple {4574#(or (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 8)) (< ULTIMATE.start_main_~i~6 7) (< 7 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {4570#(or (< ULTIMATE.start_main_~i~6 6) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 7)) (< 6 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:58:44,715 INFO L273 TraceCheckUtils]: 17: Hoare triple {4578#(or (< 8 ULTIMATE.start_main_~i~6) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 9)) (< ULTIMATE.start_main_~i~6 8))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {4574#(or (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 8)) (< ULTIMATE.start_main_~i~6 7) (< 7 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:58:44,716 INFO L273 TraceCheckUtils]: 16: Hoare triple {4582#(or (< ULTIMATE.start_main_~i~6 9) (= (+ ULTIMATE.start_main_~j~6 10) ULTIMATE.start_main_~MAX~6) (< 9 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {4578#(or (< 8 ULTIMATE.start_main_~i~6) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 9)) (< ULTIMATE.start_main_~i~6 8))} is VALID [2019-01-31 14:58:44,717 INFO L273 TraceCheckUtils]: 15: Hoare triple {4586#(or (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 11)) (< 10 ULTIMATE.start_main_~i~6) (< ULTIMATE.start_main_~i~6 10))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {4582#(or (< ULTIMATE.start_main_~i~6 9) (= (+ ULTIMATE.start_main_~j~6 10) ULTIMATE.start_main_~MAX~6) (< 9 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:58:44,718 INFO L273 TraceCheckUtils]: 14: Hoare triple {4590#(or (< ULTIMATE.start_main_~i~6 11) (= (+ ULTIMATE.start_main_~j~6 12) ULTIMATE.start_main_~MAX~6) (< 11 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {4586#(or (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 11)) (< 10 ULTIMATE.start_main_~i~6) (< ULTIMATE.start_main_~i~6 10))} is VALID [2019-01-31 14:58:44,719 INFO L273 TraceCheckUtils]: 13: Hoare triple {4414#true} assume !(main_~i~6 < main_~MAX~6);main_~str1~6 := main_~str1~6[main_~MAX~6 - 1 := 0];main_~j~6 := 0;main_~i~6 := main_~MAX~6 - 1; {4590#(or (< ULTIMATE.start_main_~i~6 11) (= (+ ULTIMATE.start_main_~j~6 12) ULTIMATE.start_main_~MAX~6) (< 11 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:58:44,720 INFO L273 TraceCheckUtils]: 12: Hoare triple {4414#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {4414#true} is VALID [2019-01-31 14:58:44,720 INFO L273 TraceCheckUtils]: 11: Hoare triple {4414#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {4414#true} is VALID [2019-01-31 14:58:44,720 INFO L273 TraceCheckUtils]: 10: Hoare triple {4414#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {4414#true} is VALID [2019-01-31 14:58:44,720 INFO L273 TraceCheckUtils]: 9: Hoare triple {4414#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {4414#true} is VALID [2019-01-31 14:58:44,720 INFO L273 TraceCheckUtils]: 8: Hoare triple {4414#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {4414#true} is VALID [2019-01-31 14:58:44,721 INFO L273 TraceCheckUtils]: 7: Hoare triple {4414#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {4414#true} is VALID [2019-01-31 14:58:44,721 INFO L273 TraceCheckUtils]: 6: Hoare triple {4414#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {4414#true} is VALID [2019-01-31 14:58:44,721 INFO L273 TraceCheckUtils]: 5: Hoare triple {4414#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {4414#true} is VALID [2019-01-31 14:58:44,721 INFO L273 TraceCheckUtils]: 4: Hoare triple {4414#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {4414#true} is VALID [2019-01-31 14:58:44,721 INFO L273 TraceCheckUtils]: 3: Hoare triple {4414#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {4414#true} is VALID [2019-01-31 14:58:44,721 INFO L273 TraceCheckUtils]: 2: Hoare triple {4414#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {4414#true} is VALID [2019-01-31 14:58:44,722 INFO L273 TraceCheckUtils]: 1: Hoare triple {4414#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {4414#true} is VALID [2019-01-31 14:58:44,722 INFO L273 TraceCheckUtils]: 0: Hoare triple {4414#true} havoc main_#res;havoc main_#t~nondet0, main_#t~nondet2, main_#t~post1, main_#t~post4, main_#t~post3, main_#t~post6, main_#t~post5, main_~MAX~6, main_~str1~6, main_~str2~6, main_~cont~6, main_~i~6, main_~j~6;main_~MAX~6 := (if main_#t~nondet0 % 4294967296 % 4294967296 <= 2147483647 then main_#t~nondet0 % 4294967296 % 4294967296 else main_#t~nondet0 % 4294967296 % 4294967296 - 4294967296);havoc main_#t~nondet0;havoc main_~str1~6;havoc main_~str2~6;havoc main_~cont~6;havoc main_~i~6;havoc main_~j~6;main_~cont~6 := 0;main_~i~6 := 0; {4414#true} is VALID [2019-01-31 14:58:44,723 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 0 proven. 78 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2019-01-31 14:58:44,741 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-01-31 14:58:44,742 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 15, 15] total 54 [2019-01-31 14:58:44,742 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-01-31 14:58:44,742 INFO L78 Accepts]: Start accepts. Automaton has 41 states. Word has length 28 [2019-01-31 14:58:44,742 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-01-31 14:58:44,742 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 41 states. [2019-01-31 14:58:44,840 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 44 edges. 44 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-01-31 14:58:44,840 INFO L459 AbstractCegarLoop]: Interpolant automaton has 41 states [2019-01-31 14:58:44,841 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2019-01-31 14:58:44,842 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=418, Invalid=2444, Unknown=0, NotChecked=0, Total=2862 [2019-01-31 14:58:44,842 INFO L87 Difference]: Start difference. First operand 29 states and 30 transitions. Second operand 41 states. [2019-01-31 14:58:47,226 WARN L181 SmtUtils]: Spent 262.00 ms on a formula simplification. DAG size of input: 15 DAG size of output: 12 [2019-01-31 14:58:49,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 14:58:49,587 INFO L93 Difference]: Finished difference Result 47 states and 51 transitions. [2019-01-31 14:58:49,587 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2019-01-31 14:58:49,587 INFO L78 Accepts]: Start accepts. Automaton has 41 states. Word has length 28 [2019-01-31 14:58:49,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-31 14:58:49,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2019-01-31 14:58:49,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 51 transitions. [2019-01-31 14:58:49,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2019-01-31 14:58:49,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 51 transitions. [2019-01-31 14:58:49,589 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 44 states and 51 transitions. [2019-01-31 14:58:50,099 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 51 edges. 51 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-01-31 14:58:50,099 INFO L225 Difference]: With dead ends: 47 [2019-01-31 14:58:50,100 INFO L226 Difference]: Without dead ends: 31 [2019-01-31 14:58:50,102 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 404 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=727, Invalid=4243, Unknown=0, NotChecked=0, Total=4970 [2019-01-31 14:58:50,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2019-01-31 14:58:50,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2019-01-31 14:58:50,526 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-01-31 14:58:50,526 INFO L82 GeneralOperation]: Start isEquivalent. First operand 31 states. Second operand 31 states. [2019-01-31 14:58:50,527 INFO L74 IsIncluded]: Start isIncluded. First operand 31 states. Second operand 31 states. [2019-01-31 14:58:50,527 INFO L87 Difference]: Start difference. First operand 31 states. Second operand 31 states. [2019-01-31 14:58:50,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 14:58:50,528 INFO L93 Difference]: Finished difference Result 31 states and 32 transitions. [2019-01-31 14:58:50,528 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 32 transitions. [2019-01-31 14:58:50,528 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-31 14:58:50,528 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-01-31 14:58:50,528 INFO L74 IsIncluded]: Start isIncluded. First operand 31 states. Second operand 31 states. [2019-01-31 14:58:50,528 INFO L87 Difference]: Start difference. First operand 31 states. Second operand 31 states. [2019-01-31 14:58:50,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 14:58:50,529 INFO L93 Difference]: Finished difference Result 31 states and 32 transitions. [2019-01-31 14:58:50,529 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 32 transitions. [2019-01-31 14:58:50,530 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-31 14:58:50,530 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-01-31 14:58:50,530 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-01-31 14:58:50,530 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-01-31 14:58:50,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2019-01-31 14:58:50,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 32 transitions. [2019-01-31 14:58:50,531 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 32 transitions. Word has length 28 [2019-01-31 14:58:50,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-31 14:58:50,531 INFO L480 AbstractCegarLoop]: Abstraction has 31 states and 32 transitions. [2019-01-31 14:58:50,531 INFO L481 AbstractCegarLoop]: Interpolant automaton has 41 states. [2019-01-31 14:58:50,531 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 32 transitions. [2019-01-31 14:58:50,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2019-01-31 14:58:50,532 INFO L394 BasicCegarLoop]: Found error trace [2019-01-31 14:58:50,532 INFO L402 BasicCegarLoop]: trace histogram [13, 13, 1, 1, 1, 1] [2019-01-31 14:58:50,532 INFO L423 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2019-01-31 14:58:50,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-31 14:58:50,532 INFO L82 PathProgramCache]: Analyzing trace with hash -319437323, now seen corresponding path program 19 times [2019-01-31 14:58:50,532 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-01-31 14:58:50,533 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-31 14:58:50,533 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-01-31 14:58:50,533 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-31 14:58:50,533 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-01-31 14:58:50,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-31 14:58:51,678 INFO L273 TraceCheckUtils]: 0: Hoare triple {4879#true} havoc main_#res;havoc main_#t~nondet0, main_#t~nondet2, main_#t~post1, main_#t~post4, main_#t~post3, main_#t~post6, main_#t~post5, main_~MAX~6, main_~str1~6, main_~str2~6, main_~cont~6, main_~i~6, main_~j~6;main_~MAX~6 := (if main_#t~nondet0 % 4294967296 % 4294967296 <= 2147483647 then main_#t~nondet0 % 4294967296 % 4294967296 else main_#t~nondet0 % 4294967296 % 4294967296 - 4294967296);havoc main_#t~nondet0;havoc main_~str1~6;havoc main_~str2~6;havoc main_~cont~6;havoc main_~i~6;havoc main_~j~6;main_~cont~6 := 0;main_~i~6 := 0; {4881#(and (<= ULTIMATE.start_main_~i~6 0) (<= 0 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:58:51,679 INFO L273 TraceCheckUtils]: 1: Hoare triple {4881#(and (<= ULTIMATE.start_main_~i~6 0) (<= 0 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {4882#(and (<= ULTIMATE.start_main_~i~6 1) (<= 1 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:58:51,680 INFO L273 TraceCheckUtils]: 2: Hoare triple {4882#(and (<= ULTIMATE.start_main_~i~6 1) (<= 1 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {4883#(and (<= ULTIMATE.start_main_~i~6 2) (<= 2 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:58:51,681 INFO L273 TraceCheckUtils]: 3: Hoare triple {4883#(and (<= ULTIMATE.start_main_~i~6 2) (<= 2 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {4884#(and (<= 3 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 3))} is VALID [2019-01-31 14:58:51,682 INFO L273 TraceCheckUtils]: 4: Hoare triple {4884#(and (<= 3 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 3))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {4885#(and (<= ULTIMATE.start_main_~i~6 4) (<= 4 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:58:51,683 INFO L273 TraceCheckUtils]: 5: Hoare triple {4885#(and (<= ULTIMATE.start_main_~i~6 4) (<= 4 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {4886#(and (<= 5 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 5))} is VALID [2019-01-31 14:58:51,684 INFO L273 TraceCheckUtils]: 6: Hoare triple {4886#(and (<= 5 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 5))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {4887#(and (<= ULTIMATE.start_main_~i~6 6) (<= 6 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:58:51,685 INFO L273 TraceCheckUtils]: 7: Hoare triple {4887#(and (<= ULTIMATE.start_main_~i~6 6) (<= 6 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {4888#(and (<= 7 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 7))} is VALID [2019-01-31 14:58:51,686 INFO L273 TraceCheckUtils]: 8: Hoare triple {4888#(and (<= 7 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 7))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {4889#(and (<= ULTIMATE.start_main_~i~6 8) (<= 8 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:58:51,687 INFO L273 TraceCheckUtils]: 9: Hoare triple {4889#(and (<= ULTIMATE.start_main_~i~6 8) (<= 8 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {4890#(and (<= ULTIMATE.start_main_~i~6 9) (<= 9 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:58:51,688 INFO L273 TraceCheckUtils]: 10: Hoare triple {4890#(and (<= ULTIMATE.start_main_~i~6 9) (<= 9 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {4891#(and (<= ULTIMATE.start_main_~i~6 10) (<= 10 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:58:51,689 INFO L273 TraceCheckUtils]: 11: Hoare triple {4891#(and (<= ULTIMATE.start_main_~i~6 10) (<= 10 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {4892#(and (<= 11 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 11))} is VALID [2019-01-31 14:58:51,690 INFO L273 TraceCheckUtils]: 12: Hoare triple {4892#(and (<= 11 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 11))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {4893#(or (not (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 1))) (and (<= ULTIMATE.start_main_~i~6 12) (<= 12 ULTIMATE.start_main_~i~6)))} is VALID [2019-01-31 14:58:51,691 INFO L273 TraceCheckUtils]: 13: Hoare triple {4893#(or (not (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 1))) (and (<= ULTIMATE.start_main_~i~6 12) (<= 12 ULTIMATE.start_main_~i~6)))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {4894#(or (<= (+ ULTIMATE.start_main_~i~6 1) ULTIMATE.start_main_~MAX~6) (= 13 ULTIMATE.start_main_~MAX~6))} is VALID [2019-01-31 14:58:51,692 INFO L273 TraceCheckUtils]: 14: Hoare triple {4894#(or (<= (+ ULTIMATE.start_main_~i~6 1) ULTIMATE.start_main_~MAX~6) (= 13 ULTIMATE.start_main_~MAX~6))} assume !(main_~i~6 < main_~MAX~6);main_~str1~6 := main_~str1~6[main_~MAX~6 - 1 := 0];main_~j~6 := 0;main_~i~6 := main_~MAX~6 - 1; {4895#(= (+ ULTIMATE.start_main_~j~6 13) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:58:51,693 INFO L273 TraceCheckUtils]: 15: Hoare triple {4895#(= (+ ULTIMATE.start_main_~j~6 13) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {4896#(= (+ ULTIMATE.start_main_~j~6 12) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:58:51,694 INFO L273 TraceCheckUtils]: 16: Hoare triple {4896#(= (+ ULTIMATE.start_main_~j~6 12) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {4897#(= (+ ULTIMATE.start_main_~j~6 11) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:58:51,695 INFO L273 TraceCheckUtils]: 17: Hoare triple {4897#(= (+ ULTIMATE.start_main_~j~6 11) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {4898#(= (+ ULTIMATE.start_main_~j~6 10) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:58:51,696 INFO L273 TraceCheckUtils]: 18: Hoare triple {4898#(= (+ ULTIMATE.start_main_~j~6 10) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {4899#(= (+ ULTIMATE.start_main_~j~6 9) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:58:51,697 INFO L273 TraceCheckUtils]: 19: Hoare triple {4899#(= (+ ULTIMATE.start_main_~j~6 9) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {4900#(= (+ ULTIMATE.start_main_~j~6 8) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:58:51,697 INFO L273 TraceCheckUtils]: 20: Hoare triple {4900#(= (+ ULTIMATE.start_main_~j~6 8) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {4901#(= (+ ULTIMATE.start_main_~j~6 7) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:58:51,698 INFO L273 TraceCheckUtils]: 21: Hoare triple {4901#(= (+ ULTIMATE.start_main_~j~6 7) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {4902#(= (+ ULTIMATE.start_main_~j~6 6) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:58:51,699 INFO L273 TraceCheckUtils]: 22: Hoare triple {4902#(= (+ ULTIMATE.start_main_~j~6 6) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {4903#(= (+ ULTIMATE.start_main_~j~6 5) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:58:51,700 INFO L273 TraceCheckUtils]: 23: Hoare triple {4903#(= (+ ULTIMATE.start_main_~j~6 5) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {4904#(= (+ ULTIMATE.start_main_~j~6 4) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:58:51,701 INFO L273 TraceCheckUtils]: 24: Hoare triple {4904#(= (+ ULTIMATE.start_main_~j~6 4) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {4905#(= (+ ULTIMATE.start_main_~j~6 3) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:58:51,702 INFO L273 TraceCheckUtils]: 25: Hoare triple {4905#(= (+ ULTIMATE.start_main_~j~6 3) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {4906#(= (+ ULTIMATE.start_main_~j~6 2) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:58:51,703 INFO L273 TraceCheckUtils]: 26: Hoare triple {4906#(= (+ ULTIMATE.start_main_~j~6 2) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {4907#(= (+ ULTIMATE.start_main_~j~6 1) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:58:51,704 INFO L273 TraceCheckUtils]: 27: Hoare triple {4907#(= (+ ULTIMATE.start_main_~j~6 1) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {4908#(= (select ULTIMATE.start_main_~str1~6 0) (select ULTIMATE.start_main_~str2~6 (+ ULTIMATE.start_main_~MAX~6 (- 1))))} is VALID [2019-01-31 14:58:51,705 INFO L273 TraceCheckUtils]: 28: Hoare triple {4908#(= (select ULTIMATE.start_main_~str1~6 0) (select ULTIMATE.start_main_~str2~6 (+ ULTIMATE.start_main_~MAX~6 (- 1))))} assume !(main_~i~6 >= 0);main_~j~6 := main_~MAX~6 - 1;main_~i~6 := 0;assume !!(main_~i~6 < main_~MAX~6);__VERIFIER_assert_#in~cond := (if main_~str1~6[main_~i~6] == main_~str2~6[main_~j~6] then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond;assume __VERIFIER_assert_~cond == 0;assume !false; {4880#false} is VALID [2019-01-31 14:58:51,706 INFO L273 TraceCheckUtils]: 29: Hoare triple {4880#false} assume !false; {4880#false} is VALID [2019-01-31 14:58:51,708 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 0 proven. 182 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-31 14:58:51,708 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-31 14:58:51,708 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-01-31 14:58:51,708 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-01-31 14:58:51,709 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-01-31 14:58:51,709 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-31 14:58:51,709 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 20 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-01-31 14:58:51,718 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-31 14:58:51,718 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2019-01-31 14:58:51,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-31 14:58:51,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-31 14:58:51,759 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-31 14:58:52,497 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2019-01-31 14:58:52,498 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-01-31 14:58:52,504 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-31 14:58:52,504 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:15, output treesize:14 [2019-01-31 14:58:52,506 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-01-31 14:58:52,507 WARN L398 uantifierElimination]: Input elimination task: ∃ [v_ULTIMATE.start_main_~str2~6_133]. (and (<= 13 ULTIMATE.start_main_~MAX~6) (= (store v_ULTIMATE.start_main_~str2~6_133 12 (select ULTIMATE.start_main_~str1~6 0)) ULTIMATE.start_main_~str2~6) (<= ULTIMATE.start_main_~MAX~6 13)) [2019-01-31 14:58:52,507 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (and (<= 13 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 13) (= (select ULTIMATE.start_main_~str1~6 0) (select ULTIMATE.start_main_~str2~6 12))) [2019-01-31 14:58:52,559 INFO L273 TraceCheckUtils]: 0: Hoare triple {4879#true} havoc main_#res;havoc main_#t~nondet0, main_#t~nondet2, main_#t~post1, main_#t~post4, main_#t~post3, main_#t~post6, main_#t~post5, main_~MAX~6, main_~str1~6, main_~str2~6, main_~cont~6, main_~i~6, main_~j~6;main_~MAX~6 := (if main_#t~nondet0 % 4294967296 % 4294967296 <= 2147483647 then main_#t~nondet0 % 4294967296 % 4294967296 else main_#t~nondet0 % 4294967296 % 4294967296 - 4294967296);havoc main_#t~nondet0;havoc main_~str1~6;havoc main_~str2~6;havoc main_~cont~6;havoc main_~i~6;havoc main_~j~6;main_~cont~6 := 0;main_~i~6 := 0; {4881#(and (<= ULTIMATE.start_main_~i~6 0) (<= 0 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:58:52,560 INFO L273 TraceCheckUtils]: 1: Hoare triple {4881#(and (<= ULTIMATE.start_main_~i~6 0) (<= 0 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {4882#(and (<= ULTIMATE.start_main_~i~6 1) (<= 1 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:58:52,561 INFO L273 TraceCheckUtils]: 2: Hoare triple {4882#(and (<= ULTIMATE.start_main_~i~6 1) (<= 1 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {4883#(and (<= ULTIMATE.start_main_~i~6 2) (<= 2 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:58:52,561 INFO L273 TraceCheckUtils]: 3: Hoare triple {4883#(and (<= ULTIMATE.start_main_~i~6 2) (<= 2 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {4884#(and (<= 3 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 3))} is VALID [2019-01-31 14:58:52,562 INFO L273 TraceCheckUtils]: 4: Hoare triple {4884#(and (<= 3 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 3))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {4885#(and (<= ULTIMATE.start_main_~i~6 4) (<= 4 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:58:52,563 INFO L273 TraceCheckUtils]: 5: Hoare triple {4885#(and (<= ULTIMATE.start_main_~i~6 4) (<= 4 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {4886#(and (<= 5 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 5))} is VALID [2019-01-31 14:58:52,564 INFO L273 TraceCheckUtils]: 6: Hoare triple {4886#(and (<= 5 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 5))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {4887#(and (<= ULTIMATE.start_main_~i~6 6) (<= 6 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:58:52,565 INFO L273 TraceCheckUtils]: 7: Hoare triple {4887#(and (<= ULTIMATE.start_main_~i~6 6) (<= 6 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {4888#(and (<= 7 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 7))} is VALID [2019-01-31 14:58:52,566 INFO L273 TraceCheckUtils]: 8: Hoare triple {4888#(and (<= 7 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 7))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {4889#(and (<= ULTIMATE.start_main_~i~6 8) (<= 8 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:58:52,567 INFO L273 TraceCheckUtils]: 9: Hoare triple {4889#(and (<= ULTIMATE.start_main_~i~6 8) (<= 8 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {4890#(and (<= ULTIMATE.start_main_~i~6 9) (<= 9 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:58:52,568 INFO L273 TraceCheckUtils]: 10: Hoare triple {4890#(and (<= ULTIMATE.start_main_~i~6 9) (<= 9 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {4891#(and (<= ULTIMATE.start_main_~i~6 10) (<= 10 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:58:52,569 INFO L273 TraceCheckUtils]: 11: Hoare triple {4891#(and (<= ULTIMATE.start_main_~i~6 10) (<= 10 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {4892#(and (<= 11 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 11))} is VALID [2019-01-31 14:58:52,570 INFO L273 TraceCheckUtils]: 12: Hoare triple {4892#(and (<= 11 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 11))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {4948#(and (<= ULTIMATE.start_main_~i~6 12) (<= 12 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:58:52,571 INFO L273 TraceCheckUtils]: 13: Hoare triple {4948#(and (<= ULTIMATE.start_main_~i~6 12) (<= 12 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {4952#(and (<= 13 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~i~6 13))} is VALID [2019-01-31 14:58:52,572 INFO L273 TraceCheckUtils]: 14: Hoare triple {4952#(and (<= 13 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~i~6 13))} assume !(main_~i~6 < main_~MAX~6);main_~str1~6 := main_~str1~6[main_~MAX~6 - 1 := 0];main_~j~6 := 0;main_~i~6 := main_~MAX~6 - 1; {4956#(and (<= 13 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 13) (= ULTIMATE.start_main_~j~6 0))} is VALID [2019-01-31 14:58:52,572 INFO L273 TraceCheckUtils]: 15: Hoare triple {4956#(and (<= 13 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 13) (= ULTIMATE.start_main_~j~6 0))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {4960#(and (<= 13 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 13) (= ULTIMATE.start_main_~j~6 1))} is VALID [2019-01-31 14:58:52,573 INFO L273 TraceCheckUtils]: 16: Hoare triple {4960#(and (<= 13 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 13) (= ULTIMATE.start_main_~j~6 1))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {4964#(and (<= 13 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 13) (= ULTIMATE.start_main_~j~6 2))} is VALID [2019-01-31 14:58:52,574 INFO L273 TraceCheckUtils]: 17: Hoare triple {4964#(and (<= 13 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 13) (= ULTIMATE.start_main_~j~6 2))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {4968#(and (<= 13 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 13) (= ULTIMATE.start_main_~j~6 3))} is VALID [2019-01-31 14:58:52,575 INFO L273 TraceCheckUtils]: 18: Hoare triple {4968#(and (<= 13 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 13) (= ULTIMATE.start_main_~j~6 3))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {4972#(and (<= 13 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 13) (= ULTIMATE.start_main_~j~6 4))} is VALID [2019-01-31 14:58:52,576 INFO L273 TraceCheckUtils]: 19: Hoare triple {4972#(and (<= 13 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 13) (= ULTIMATE.start_main_~j~6 4))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {4976#(and (<= 13 ULTIMATE.start_main_~MAX~6) (= ULTIMATE.start_main_~j~6 5) (<= ULTIMATE.start_main_~MAX~6 13))} is VALID [2019-01-31 14:58:52,576 INFO L273 TraceCheckUtils]: 20: Hoare triple {4976#(and (<= 13 ULTIMATE.start_main_~MAX~6) (= ULTIMATE.start_main_~j~6 5) (<= ULTIMATE.start_main_~MAX~6 13))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {4980#(and (<= 13 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 13) (= ULTIMATE.start_main_~j~6 6))} is VALID [2019-01-31 14:58:52,577 INFO L273 TraceCheckUtils]: 21: Hoare triple {4980#(and (<= 13 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 13) (= ULTIMATE.start_main_~j~6 6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {4984#(and (= ULTIMATE.start_main_~j~6 7) (<= 13 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 13))} is VALID [2019-01-31 14:58:52,578 INFO L273 TraceCheckUtils]: 22: Hoare triple {4984#(and (= ULTIMATE.start_main_~j~6 7) (<= 13 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 13))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {4988#(and (<= 13 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 13) (= ULTIMATE.start_main_~j~6 8))} is VALID [2019-01-31 14:58:52,579 INFO L273 TraceCheckUtils]: 23: Hoare triple {4988#(and (<= 13 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 13) (= ULTIMATE.start_main_~j~6 8))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {4992#(and (<= 13 ULTIMATE.start_main_~MAX~6) (= ULTIMATE.start_main_~j~6 9) (<= ULTIMATE.start_main_~MAX~6 13))} is VALID [2019-01-31 14:58:52,580 INFO L273 TraceCheckUtils]: 24: Hoare triple {4992#(and (<= 13 ULTIMATE.start_main_~MAX~6) (= ULTIMATE.start_main_~j~6 9) (<= ULTIMATE.start_main_~MAX~6 13))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {4996#(and (= ULTIMATE.start_main_~j~6 10) (<= 13 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 13))} is VALID [2019-01-31 14:58:52,580 INFO L273 TraceCheckUtils]: 25: Hoare triple {4996#(and (= ULTIMATE.start_main_~j~6 10) (<= 13 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 13))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {5000#(and (<= 13 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 13) (= ULTIMATE.start_main_~j~6 11))} is VALID [2019-01-31 14:58:52,581 INFO L273 TraceCheckUtils]: 26: Hoare triple {5000#(and (<= 13 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 13) (= ULTIMATE.start_main_~j~6 11))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {5004#(and (<= 13 ULTIMATE.start_main_~MAX~6) (= ULTIMATE.start_main_~j~6 12) (<= ULTIMATE.start_main_~MAX~6 13))} is VALID [2019-01-31 14:58:52,582 INFO L273 TraceCheckUtils]: 27: Hoare triple {5004#(and (<= 13 ULTIMATE.start_main_~MAX~6) (= ULTIMATE.start_main_~j~6 12) (<= ULTIMATE.start_main_~MAX~6 13))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {5008#(and (<= 13 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 13) (= (select ULTIMATE.start_main_~str1~6 0) (select ULTIMATE.start_main_~str2~6 12)))} is VALID [2019-01-31 14:58:52,583 INFO L273 TraceCheckUtils]: 28: Hoare triple {5008#(and (<= 13 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 13) (= (select ULTIMATE.start_main_~str1~6 0) (select ULTIMATE.start_main_~str2~6 12)))} assume !(main_~i~6 >= 0);main_~j~6 := main_~MAX~6 - 1;main_~i~6 := 0;assume !!(main_~i~6 < main_~MAX~6);__VERIFIER_assert_#in~cond := (if main_~str1~6[main_~i~6] == main_~str2~6[main_~j~6] then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond;assume __VERIFIER_assert_~cond == 0;assume !false; {4880#false} is VALID [2019-01-31 14:58:52,583 INFO L273 TraceCheckUtils]: 29: Hoare triple {4880#false} assume !false; {4880#false} is VALID [2019-01-31 14:58:52,587 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 0 proven. 182 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-31 14:58:52,587 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2019-01-31 14:58:52,633 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 5 [2019-01-31 14:58:52,634 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-01-31 14:58:52,638 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-31 14:58:52,638 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:14, output treesize:5 [2019-01-31 14:58:52,640 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-01-31 14:58:52,641 WARN L398 uantifierElimination]: Input elimination task: ∀ [ULTIMATE.start_main_~str2~6, ULTIMATE.start_main_~str1~6]. (let ((.cse0 (select ULTIMATE.start_main_~str1~6 0))) (= .cse0 (select (store ULTIMATE.start_main_~str2~6 ULTIMATE.start_main_~j~6 .cse0) (+ ULTIMATE.start_main_~MAX~6 (- 1))))) [2019-01-31 14:58:52,641 WARN L399 uantifierElimination]: ElimStorePlain result: ∀ []. (= (+ ULTIMATE.start_main_~j~6 1) ULTIMATE.start_main_~MAX~6) [2019-01-31 14:58:52,865 INFO L273 TraceCheckUtils]: 29: Hoare triple {4880#false} assume !false; {4880#false} is VALID [2019-01-31 14:58:52,867 INFO L273 TraceCheckUtils]: 28: Hoare triple {4908#(= (select ULTIMATE.start_main_~str1~6 0) (select ULTIMATE.start_main_~str2~6 (+ ULTIMATE.start_main_~MAX~6 (- 1))))} assume !(main_~i~6 >= 0);main_~j~6 := main_~MAX~6 - 1;main_~i~6 := 0;assume !!(main_~i~6 < main_~MAX~6);__VERIFIER_assert_#in~cond := (if main_~str1~6[main_~i~6] == main_~str2~6[main_~j~6] then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond;assume __VERIFIER_assert_~cond == 0;assume !false; {4880#false} is VALID [2019-01-31 14:58:52,868 INFO L273 TraceCheckUtils]: 27: Hoare triple {4907#(= (+ ULTIMATE.start_main_~j~6 1) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {4908#(= (select ULTIMATE.start_main_~str1~6 0) (select ULTIMATE.start_main_~str2~6 (+ ULTIMATE.start_main_~MAX~6 (- 1))))} is VALID [2019-01-31 14:58:52,869 INFO L273 TraceCheckUtils]: 26: Hoare triple {4906#(= (+ ULTIMATE.start_main_~j~6 2) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {4907#(= (+ ULTIMATE.start_main_~j~6 1) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:58:52,870 INFO L273 TraceCheckUtils]: 25: Hoare triple {4905#(= (+ ULTIMATE.start_main_~j~6 3) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {4906#(= (+ ULTIMATE.start_main_~j~6 2) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:58:52,871 INFO L273 TraceCheckUtils]: 24: Hoare triple {4904#(= (+ ULTIMATE.start_main_~j~6 4) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {4905#(= (+ ULTIMATE.start_main_~j~6 3) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:58:52,872 INFO L273 TraceCheckUtils]: 23: Hoare triple {4903#(= (+ ULTIMATE.start_main_~j~6 5) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {4904#(= (+ ULTIMATE.start_main_~j~6 4) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:58:52,873 INFO L273 TraceCheckUtils]: 22: Hoare triple {4902#(= (+ ULTIMATE.start_main_~j~6 6) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {4903#(= (+ ULTIMATE.start_main_~j~6 5) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:58:52,874 INFO L273 TraceCheckUtils]: 21: Hoare triple {4901#(= (+ ULTIMATE.start_main_~j~6 7) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {4902#(= (+ ULTIMATE.start_main_~j~6 6) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:58:52,875 INFO L273 TraceCheckUtils]: 20: Hoare triple {4900#(= (+ ULTIMATE.start_main_~j~6 8) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {4901#(= (+ ULTIMATE.start_main_~j~6 7) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:58:52,876 INFO L273 TraceCheckUtils]: 19: Hoare triple {4899#(= (+ ULTIMATE.start_main_~j~6 9) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {4900#(= (+ ULTIMATE.start_main_~j~6 8) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:58:52,877 INFO L273 TraceCheckUtils]: 18: Hoare triple {4898#(= (+ ULTIMATE.start_main_~j~6 10) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {4899#(= (+ ULTIMATE.start_main_~j~6 9) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:58:52,878 INFO L273 TraceCheckUtils]: 17: Hoare triple {4897#(= (+ ULTIMATE.start_main_~j~6 11) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {4898#(= (+ ULTIMATE.start_main_~j~6 10) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:58:52,879 INFO L273 TraceCheckUtils]: 16: Hoare triple {4896#(= (+ ULTIMATE.start_main_~j~6 12) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {4897#(= (+ ULTIMATE.start_main_~j~6 11) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:58:52,880 INFO L273 TraceCheckUtils]: 15: Hoare triple {4895#(= (+ ULTIMATE.start_main_~j~6 13) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {4896#(= (+ ULTIMATE.start_main_~j~6 12) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:58:52,881 INFO L273 TraceCheckUtils]: 14: Hoare triple {4894#(or (<= (+ ULTIMATE.start_main_~i~6 1) ULTIMATE.start_main_~MAX~6) (= 13 ULTIMATE.start_main_~MAX~6))} assume !(main_~i~6 < main_~MAX~6);main_~str1~6 := main_~str1~6[main_~MAX~6 - 1 := 0];main_~j~6 := 0;main_~i~6 := main_~MAX~6 - 1; {4895#(= (+ ULTIMATE.start_main_~j~6 13) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:58:52,882 INFO L273 TraceCheckUtils]: 13: Hoare triple {4948#(and (<= ULTIMATE.start_main_~i~6 12) (<= 12 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {4894#(or (<= (+ ULTIMATE.start_main_~i~6 1) ULTIMATE.start_main_~MAX~6) (= 13 ULTIMATE.start_main_~MAX~6))} is VALID [2019-01-31 14:58:52,883 INFO L273 TraceCheckUtils]: 12: Hoare triple {4892#(and (<= 11 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 11))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {4948#(and (<= ULTIMATE.start_main_~i~6 12) (<= 12 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:58:52,884 INFO L273 TraceCheckUtils]: 11: Hoare triple {4891#(and (<= ULTIMATE.start_main_~i~6 10) (<= 10 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {4892#(and (<= 11 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 11))} is VALID [2019-01-31 14:58:52,885 INFO L273 TraceCheckUtils]: 10: Hoare triple {4890#(and (<= ULTIMATE.start_main_~i~6 9) (<= 9 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {4891#(and (<= ULTIMATE.start_main_~i~6 10) (<= 10 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:58:52,886 INFO L273 TraceCheckUtils]: 9: Hoare triple {4889#(and (<= ULTIMATE.start_main_~i~6 8) (<= 8 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {4890#(and (<= ULTIMATE.start_main_~i~6 9) (<= 9 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:58:52,887 INFO L273 TraceCheckUtils]: 8: Hoare triple {4888#(and (<= 7 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 7))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {4889#(and (<= ULTIMATE.start_main_~i~6 8) (<= 8 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:58:52,888 INFO L273 TraceCheckUtils]: 7: Hoare triple {4887#(and (<= ULTIMATE.start_main_~i~6 6) (<= 6 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {4888#(and (<= 7 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 7))} is VALID [2019-01-31 14:58:52,889 INFO L273 TraceCheckUtils]: 6: Hoare triple {4886#(and (<= 5 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 5))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {4887#(and (<= ULTIMATE.start_main_~i~6 6) (<= 6 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:58:52,890 INFO L273 TraceCheckUtils]: 5: Hoare triple {4885#(and (<= ULTIMATE.start_main_~i~6 4) (<= 4 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {4886#(and (<= 5 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 5))} is VALID [2019-01-31 14:58:52,891 INFO L273 TraceCheckUtils]: 4: Hoare triple {4884#(and (<= 3 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 3))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {4885#(and (<= ULTIMATE.start_main_~i~6 4) (<= 4 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:58:52,892 INFO L273 TraceCheckUtils]: 3: Hoare triple {4883#(and (<= ULTIMATE.start_main_~i~6 2) (<= 2 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {4884#(and (<= 3 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 3))} is VALID [2019-01-31 14:58:52,893 INFO L273 TraceCheckUtils]: 2: Hoare triple {4882#(and (<= ULTIMATE.start_main_~i~6 1) (<= 1 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {4883#(and (<= ULTIMATE.start_main_~i~6 2) (<= 2 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:58:52,894 INFO L273 TraceCheckUtils]: 1: Hoare triple {4881#(and (<= ULTIMATE.start_main_~i~6 0) (<= 0 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {4882#(and (<= ULTIMATE.start_main_~i~6 1) (<= 1 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:58:52,894 INFO L273 TraceCheckUtils]: 0: Hoare triple {4879#true} havoc main_#res;havoc main_#t~nondet0, main_#t~nondet2, main_#t~post1, main_#t~post4, main_#t~post3, main_#t~post6, main_#t~post5, main_~MAX~6, main_~str1~6, main_~str2~6, main_~cont~6, main_~i~6, main_~j~6;main_~MAX~6 := (if main_#t~nondet0 % 4294967296 % 4294967296 <= 2147483647 then main_#t~nondet0 % 4294967296 % 4294967296 else main_#t~nondet0 % 4294967296 % 4294967296 - 4294967296);havoc main_#t~nondet0;havoc main_~str1~6;havoc main_~str2~6;havoc main_~cont~6;havoc main_~i~6;havoc main_~j~6;main_~cont~6 := 0;main_~i~6 := 0; {4881#(and (<= ULTIMATE.start_main_~i~6 0) (<= 0 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:58:52,911 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 0 proven. 182 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-31 14:58:52,930 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-01-31 14:58:52,930 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [29, 29, 29] total 45 [2019-01-31 14:58:52,931 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-01-31 14:58:52,931 INFO L78 Accepts]: Start accepts. Automaton has 46 states. Word has length 30 [2019-01-31 14:58:52,931 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-01-31 14:58:52,931 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 46 states. [2019-01-31 14:58:52,979 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 47 edges. 47 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-01-31 14:58:52,979 INFO L459 AbstractCegarLoop]: Interpolant automaton has 46 states [2019-01-31 14:58:52,979 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2019-01-31 14:58:52,980 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=133, Invalid=1937, Unknown=0, NotChecked=0, Total=2070 [2019-01-31 14:58:52,980 INFO L87 Difference]: Start difference. First operand 31 states and 32 transitions. Second operand 46 states. [2019-01-31 14:58:56,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 14:58:56,974 INFO L93 Difference]: Finished difference Result 48 states and 50 transitions. [2019-01-31 14:58:56,974 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2019-01-31 14:58:56,975 INFO L78 Accepts]: Start accepts. Automaton has 46 states. Word has length 30 [2019-01-31 14:58:56,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-31 14:58:56,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2019-01-31 14:58:56,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 38 transitions. [2019-01-31 14:58:56,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2019-01-31 14:58:56,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 38 transitions. [2019-01-31 14:58:56,977 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 33 states and 38 transitions. [2019-01-31 14:58:57,088 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 38 edges. 38 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-01-31 14:58:57,089 INFO L225 Difference]: With dead ends: 48 [2019-01-31 14:58:57,089 INFO L226 Difference]: Without dead ends: 32 [2019-01-31 14:58:57,091 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 35 SyntacticMatches, 8 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 545 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=282, Invalid=3500, Unknown=0, NotChecked=0, Total=3782 [2019-01-31 14:58:57,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2019-01-31 14:58:57,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2019-01-31 14:58:57,438 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-01-31 14:58:57,438 INFO L82 GeneralOperation]: Start isEquivalent. First operand 32 states. Second operand 32 states. [2019-01-31 14:58:57,439 INFO L74 IsIncluded]: Start isIncluded. First operand 32 states. Second operand 32 states. [2019-01-31 14:58:57,439 INFO L87 Difference]: Start difference. First operand 32 states. Second operand 32 states. [2019-01-31 14:58:57,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 14:58:57,440 INFO L93 Difference]: Finished difference Result 32 states and 33 transitions. [2019-01-31 14:58:57,440 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 33 transitions. [2019-01-31 14:58:57,441 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-31 14:58:57,441 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-01-31 14:58:57,441 INFO L74 IsIncluded]: Start isIncluded. First operand 32 states. Second operand 32 states. [2019-01-31 14:58:57,441 INFO L87 Difference]: Start difference. First operand 32 states. Second operand 32 states. [2019-01-31 14:58:57,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 14:58:57,442 INFO L93 Difference]: Finished difference Result 32 states and 33 transitions. [2019-01-31 14:58:57,442 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 33 transitions. [2019-01-31 14:58:57,442 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-31 14:58:57,443 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-01-31 14:58:57,443 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-01-31 14:58:57,443 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-01-31 14:58:57,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2019-01-31 14:58:57,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 33 transitions. [2019-01-31 14:58:57,444 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 33 transitions. Word has length 30 [2019-01-31 14:58:57,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-31 14:58:57,444 INFO L480 AbstractCegarLoop]: Abstraction has 32 states and 33 transitions. [2019-01-31 14:58:57,444 INFO L481 AbstractCegarLoop]: Interpolant automaton has 46 states. [2019-01-31 14:58:57,444 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 33 transitions. [2019-01-31 14:58:57,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-01-31 14:58:57,445 INFO L394 BasicCegarLoop]: Found error trace [2019-01-31 14:58:57,445 INFO L402 BasicCegarLoop]: trace histogram [14, 13, 1, 1, 1, 1] [2019-01-31 14:58:57,445 INFO L423 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2019-01-31 14:58:57,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-31 14:58:57,445 INFO L82 PathProgramCache]: Analyzing trace with hash 1693839084, now seen corresponding path program 20 times [2019-01-31 14:58:57,445 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-01-31 14:58:57,446 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-31 14:58:57,446 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-31 14:58:57,446 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-31 14:58:57,447 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-01-31 14:58:57,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-31 14:58:58,002 INFO L273 TraceCheckUtils]: 0: Hoare triple {5352#true} havoc main_#res;havoc main_#t~nondet0, main_#t~nondet2, main_#t~post1, main_#t~post4, main_#t~post3, main_#t~post6, main_#t~post5, main_~MAX~6, main_~str1~6, main_~str2~6, main_~cont~6, main_~i~6, main_~j~6;main_~MAX~6 := (if main_#t~nondet0 % 4294967296 % 4294967296 <= 2147483647 then main_#t~nondet0 % 4294967296 % 4294967296 else main_#t~nondet0 % 4294967296 % 4294967296 - 4294967296);havoc main_#t~nondet0;havoc main_~str1~6;havoc main_~str2~6;havoc main_~cont~6;havoc main_~i~6;havoc main_~j~6;main_~cont~6 := 0;main_~i~6 := 0; {5354#(<= 0 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:58,009 INFO L273 TraceCheckUtils]: 1: Hoare triple {5354#(<= 0 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {5355#(<= 1 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:58,010 INFO L273 TraceCheckUtils]: 2: Hoare triple {5355#(<= 1 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {5356#(<= 2 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:58,010 INFO L273 TraceCheckUtils]: 3: Hoare triple {5356#(<= 2 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {5357#(<= 3 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:58,011 INFO L273 TraceCheckUtils]: 4: Hoare triple {5357#(<= 3 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {5358#(<= 4 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:58,012 INFO L273 TraceCheckUtils]: 5: Hoare triple {5358#(<= 4 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {5359#(<= 5 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:58,012 INFO L273 TraceCheckUtils]: 6: Hoare triple {5359#(<= 5 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {5360#(<= 6 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:58,013 INFO L273 TraceCheckUtils]: 7: Hoare triple {5360#(<= 6 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {5361#(<= 7 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:58,014 INFO L273 TraceCheckUtils]: 8: Hoare triple {5361#(<= 7 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {5362#(<= 8 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:58,015 INFO L273 TraceCheckUtils]: 9: Hoare triple {5362#(<= 8 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {5363#(<= 9 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:58,015 INFO L273 TraceCheckUtils]: 10: Hoare triple {5363#(<= 9 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {5364#(<= 10 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:58,016 INFO L273 TraceCheckUtils]: 11: Hoare triple {5364#(<= 10 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {5365#(<= 11 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:58,017 INFO L273 TraceCheckUtils]: 12: Hoare triple {5365#(<= 11 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {5366#(<= 12 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:58,018 INFO L273 TraceCheckUtils]: 13: Hoare triple {5366#(<= 12 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {5367#(<= 13 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:58,019 INFO L273 TraceCheckUtils]: 14: Hoare triple {5367#(<= 13 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {5368#(<= 14 ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:58:58,020 INFO L273 TraceCheckUtils]: 15: Hoare triple {5368#(<= 14 ULTIMATE.start_main_~MAX~6)} assume !(main_~i~6 < main_~MAX~6);main_~str1~6 := main_~str1~6[main_~MAX~6 - 1 := 0];main_~j~6 := 0;main_~i~6 := main_~MAX~6 - 1; {5367#(<= 13 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:58,021 INFO L273 TraceCheckUtils]: 16: Hoare triple {5367#(<= 13 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {5366#(<= 12 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:58,022 INFO L273 TraceCheckUtils]: 17: Hoare triple {5366#(<= 12 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {5365#(<= 11 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:58,022 INFO L273 TraceCheckUtils]: 18: Hoare triple {5365#(<= 11 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {5364#(<= 10 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:58,023 INFO L273 TraceCheckUtils]: 19: Hoare triple {5364#(<= 10 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {5363#(<= 9 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:58,024 INFO L273 TraceCheckUtils]: 20: Hoare triple {5363#(<= 9 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {5362#(<= 8 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:58,025 INFO L273 TraceCheckUtils]: 21: Hoare triple {5362#(<= 8 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {5361#(<= 7 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:58,026 INFO L273 TraceCheckUtils]: 22: Hoare triple {5361#(<= 7 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {5360#(<= 6 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:58,027 INFO L273 TraceCheckUtils]: 23: Hoare triple {5360#(<= 6 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {5359#(<= 5 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:58,028 INFO L273 TraceCheckUtils]: 24: Hoare triple {5359#(<= 5 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {5358#(<= 4 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:58,029 INFO L273 TraceCheckUtils]: 25: Hoare triple {5358#(<= 4 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {5357#(<= 3 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:58,029 INFO L273 TraceCheckUtils]: 26: Hoare triple {5357#(<= 3 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {5356#(<= 2 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:58,030 INFO L273 TraceCheckUtils]: 27: Hoare triple {5356#(<= 2 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {5355#(<= 1 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:58,031 INFO L273 TraceCheckUtils]: 28: Hoare triple {5355#(<= 1 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {5354#(<= 0 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:58,032 INFO L273 TraceCheckUtils]: 29: Hoare triple {5354#(<= 0 ULTIMATE.start_main_~i~6)} assume !(main_~i~6 >= 0);main_~j~6 := main_~MAX~6 - 1;main_~i~6 := 0;assume !!(main_~i~6 < main_~MAX~6);__VERIFIER_assert_#in~cond := (if main_~str1~6[main_~i~6] == main_~str2~6[main_~j~6] then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond;assume __VERIFIER_assert_~cond == 0;assume !false; {5353#false} is VALID [2019-01-31 14:58:58,032 INFO L273 TraceCheckUtils]: 30: Hoare triple {5353#false} assume !false; {5353#false} is VALID [2019-01-31 14:58:58,033 INFO L134 CoverageAnalysis]: Checked inductivity of 196 backedges. 91 proven. 105 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-31 14:58:58,034 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-31 14:58:58,034 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-01-31 14:58:58,034 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-01-31 14:58:58,034 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-01-31 14:58:58,034 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-31 14:58:58,034 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 21 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-01-31 14:58:58,044 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2019-01-31 14:58:58,044 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST2 (IT: FPandBP) [2019-01-31 14:58:58,089 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2019-01-31 14:58:58,090 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-01-31 14:58:58,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-31 14:58:58,105 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-31 14:58:58,248 INFO L273 TraceCheckUtils]: 0: Hoare triple {5352#true} havoc main_#res;havoc main_#t~nondet0, main_#t~nondet2, main_#t~post1, main_#t~post4, main_#t~post3, main_#t~post6, main_#t~post5, main_~MAX~6, main_~str1~6, main_~str2~6, main_~cont~6, main_~i~6, main_~j~6;main_~MAX~6 := (if main_#t~nondet0 % 4294967296 % 4294967296 <= 2147483647 then main_#t~nondet0 % 4294967296 % 4294967296 else main_#t~nondet0 % 4294967296 % 4294967296 - 4294967296);havoc main_#t~nondet0;havoc main_~str1~6;havoc main_~str2~6;havoc main_~cont~6;havoc main_~i~6;havoc main_~j~6;main_~cont~6 := 0;main_~i~6 := 0; {5354#(<= 0 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:58,249 INFO L273 TraceCheckUtils]: 1: Hoare triple {5354#(<= 0 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {5355#(<= 1 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:58,250 INFO L273 TraceCheckUtils]: 2: Hoare triple {5355#(<= 1 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {5356#(<= 2 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:58,251 INFO L273 TraceCheckUtils]: 3: Hoare triple {5356#(<= 2 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {5357#(<= 3 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:58,251 INFO L273 TraceCheckUtils]: 4: Hoare triple {5357#(<= 3 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {5358#(<= 4 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:58,252 INFO L273 TraceCheckUtils]: 5: Hoare triple {5358#(<= 4 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {5359#(<= 5 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:58,253 INFO L273 TraceCheckUtils]: 6: Hoare triple {5359#(<= 5 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {5360#(<= 6 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:58,254 INFO L273 TraceCheckUtils]: 7: Hoare triple {5360#(<= 6 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {5361#(<= 7 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:58,255 INFO L273 TraceCheckUtils]: 8: Hoare triple {5361#(<= 7 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {5362#(<= 8 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:58,256 INFO L273 TraceCheckUtils]: 9: Hoare triple {5362#(<= 8 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {5363#(<= 9 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:58,257 INFO L273 TraceCheckUtils]: 10: Hoare triple {5363#(<= 9 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {5364#(<= 10 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:58,258 INFO L273 TraceCheckUtils]: 11: Hoare triple {5364#(<= 10 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {5365#(<= 11 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:58,258 INFO L273 TraceCheckUtils]: 12: Hoare triple {5365#(<= 11 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {5366#(<= 12 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:58,259 INFO L273 TraceCheckUtils]: 13: Hoare triple {5366#(<= 12 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {5367#(<= 13 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:58,260 INFO L273 TraceCheckUtils]: 14: Hoare triple {5367#(<= 13 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {5368#(<= 14 ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:58:58,261 INFO L273 TraceCheckUtils]: 15: Hoare triple {5368#(<= 14 ULTIMATE.start_main_~MAX~6)} assume !(main_~i~6 < main_~MAX~6);main_~str1~6 := main_~str1~6[main_~MAX~6 - 1 := 0];main_~j~6 := 0;main_~i~6 := main_~MAX~6 - 1; {5367#(<= 13 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:58,262 INFO L273 TraceCheckUtils]: 16: Hoare triple {5367#(<= 13 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {5366#(<= 12 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:58,263 INFO L273 TraceCheckUtils]: 17: Hoare triple {5366#(<= 12 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {5365#(<= 11 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:58,264 INFO L273 TraceCheckUtils]: 18: Hoare triple {5365#(<= 11 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {5364#(<= 10 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:58,265 INFO L273 TraceCheckUtils]: 19: Hoare triple {5364#(<= 10 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {5363#(<= 9 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:58,266 INFO L273 TraceCheckUtils]: 20: Hoare triple {5363#(<= 9 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {5362#(<= 8 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:58,266 INFO L273 TraceCheckUtils]: 21: Hoare triple {5362#(<= 8 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {5361#(<= 7 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:58,267 INFO L273 TraceCheckUtils]: 22: Hoare triple {5361#(<= 7 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {5360#(<= 6 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:58,268 INFO L273 TraceCheckUtils]: 23: Hoare triple {5360#(<= 6 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {5359#(<= 5 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:58,269 INFO L273 TraceCheckUtils]: 24: Hoare triple {5359#(<= 5 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {5358#(<= 4 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:58,270 INFO L273 TraceCheckUtils]: 25: Hoare triple {5358#(<= 4 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {5357#(<= 3 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:58,271 INFO L273 TraceCheckUtils]: 26: Hoare triple {5357#(<= 3 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {5356#(<= 2 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:58,272 INFO L273 TraceCheckUtils]: 27: Hoare triple {5356#(<= 2 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {5355#(<= 1 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:58,273 INFO L273 TraceCheckUtils]: 28: Hoare triple {5355#(<= 1 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {5354#(<= 0 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:58,273 INFO L273 TraceCheckUtils]: 29: Hoare triple {5354#(<= 0 ULTIMATE.start_main_~i~6)} assume !(main_~i~6 >= 0);main_~j~6 := main_~MAX~6 - 1;main_~i~6 := 0;assume !!(main_~i~6 < main_~MAX~6);__VERIFIER_assert_#in~cond := (if main_~str1~6[main_~i~6] == main_~str2~6[main_~j~6] then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond;assume __VERIFIER_assert_~cond == 0;assume !false; {5353#false} is VALID [2019-01-31 14:58:58,273 INFO L273 TraceCheckUtils]: 30: Hoare triple {5353#false} assume !false; {5353#false} is VALID [2019-01-31 14:58:58,275 INFO L134 CoverageAnalysis]: Checked inductivity of 196 backedges. 91 proven. 105 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-31 14:58:58,275 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2019-01-31 14:58:58,591 INFO L273 TraceCheckUtils]: 30: Hoare triple {5353#false} assume !false; {5353#false} is VALID [2019-01-31 14:58:58,592 INFO L273 TraceCheckUtils]: 29: Hoare triple {5354#(<= 0 ULTIMATE.start_main_~i~6)} assume !(main_~i~6 >= 0);main_~j~6 := main_~MAX~6 - 1;main_~i~6 := 0;assume !!(main_~i~6 < main_~MAX~6);__VERIFIER_assert_#in~cond := (if main_~str1~6[main_~i~6] == main_~str2~6[main_~j~6] then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond;assume __VERIFIER_assert_~cond == 0;assume !false; {5353#false} is VALID [2019-01-31 14:58:58,593 INFO L273 TraceCheckUtils]: 28: Hoare triple {5355#(<= 1 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {5354#(<= 0 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:58,594 INFO L273 TraceCheckUtils]: 27: Hoare triple {5356#(<= 2 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {5355#(<= 1 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:58,595 INFO L273 TraceCheckUtils]: 26: Hoare triple {5357#(<= 3 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {5356#(<= 2 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:58,596 INFO L273 TraceCheckUtils]: 25: Hoare triple {5358#(<= 4 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {5357#(<= 3 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:58,596 INFO L273 TraceCheckUtils]: 24: Hoare triple {5359#(<= 5 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {5358#(<= 4 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:58,597 INFO L273 TraceCheckUtils]: 23: Hoare triple {5360#(<= 6 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {5359#(<= 5 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:58,598 INFO L273 TraceCheckUtils]: 22: Hoare triple {5361#(<= 7 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {5360#(<= 6 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:58,599 INFO L273 TraceCheckUtils]: 21: Hoare triple {5362#(<= 8 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {5361#(<= 7 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:58,600 INFO L273 TraceCheckUtils]: 20: Hoare triple {5363#(<= 9 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {5362#(<= 8 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:58,601 INFO L273 TraceCheckUtils]: 19: Hoare triple {5364#(<= 10 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {5363#(<= 9 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:58,602 INFO L273 TraceCheckUtils]: 18: Hoare triple {5365#(<= 11 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {5364#(<= 10 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:58,603 INFO L273 TraceCheckUtils]: 17: Hoare triple {5366#(<= 12 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {5365#(<= 11 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:58,603 INFO L273 TraceCheckUtils]: 16: Hoare triple {5367#(<= 13 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {5366#(<= 12 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:58,604 INFO L273 TraceCheckUtils]: 15: Hoare triple {5368#(<= 14 ULTIMATE.start_main_~MAX~6)} assume !(main_~i~6 < main_~MAX~6);main_~str1~6 := main_~str1~6[main_~MAX~6 - 1 := 0];main_~j~6 := 0;main_~i~6 := main_~MAX~6 - 1; {5367#(<= 13 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:58,605 INFO L273 TraceCheckUtils]: 14: Hoare triple {5367#(<= 13 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {5368#(<= 14 ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:58:58,606 INFO L273 TraceCheckUtils]: 13: Hoare triple {5366#(<= 12 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {5367#(<= 13 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:58,607 INFO L273 TraceCheckUtils]: 12: Hoare triple {5365#(<= 11 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {5366#(<= 12 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:58,608 INFO L273 TraceCheckUtils]: 11: Hoare triple {5364#(<= 10 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {5365#(<= 11 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:58,609 INFO L273 TraceCheckUtils]: 10: Hoare triple {5363#(<= 9 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {5364#(<= 10 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:58,610 INFO L273 TraceCheckUtils]: 9: Hoare triple {5362#(<= 8 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {5363#(<= 9 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:58,611 INFO L273 TraceCheckUtils]: 8: Hoare triple {5361#(<= 7 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {5362#(<= 8 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:58,612 INFO L273 TraceCheckUtils]: 7: Hoare triple {5360#(<= 6 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {5361#(<= 7 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:58,613 INFO L273 TraceCheckUtils]: 6: Hoare triple {5359#(<= 5 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {5360#(<= 6 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:58,613 INFO L273 TraceCheckUtils]: 5: Hoare triple {5358#(<= 4 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {5359#(<= 5 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:58,614 INFO L273 TraceCheckUtils]: 4: Hoare triple {5357#(<= 3 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {5358#(<= 4 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:58,615 INFO L273 TraceCheckUtils]: 3: Hoare triple {5356#(<= 2 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {5357#(<= 3 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:58,616 INFO L273 TraceCheckUtils]: 2: Hoare triple {5355#(<= 1 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {5356#(<= 2 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:58,617 INFO L273 TraceCheckUtils]: 1: Hoare triple {5354#(<= 0 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {5355#(<= 1 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:58,618 INFO L273 TraceCheckUtils]: 0: Hoare triple {5352#true} havoc main_#res;havoc main_#t~nondet0, main_#t~nondet2, main_#t~post1, main_#t~post4, main_#t~post3, main_#t~post6, main_#t~post5, main_~MAX~6, main_~str1~6, main_~str2~6, main_~cont~6, main_~i~6, main_~j~6;main_~MAX~6 := (if main_#t~nondet0 % 4294967296 % 4294967296 <= 2147483647 then main_#t~nondet0 % 4294967296 % 4294967296 else main_#t~nondet0 % 4294967296 % 4294967296 - 4294967296);havoc main_#t~nondet0;havoc main_~str1~6;havoc main_~str2~6;havoc main_~cont~6;havoc main_~i~6;havoc main_~j~6;main_~cont~6 := 0;main_~i~6 := 0; {5354#(<= 0 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:58:58,619 INFO L134 CoverageAnalysis]: Checked inductivity of 196 backedges. 91 proven. 105 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-31 14:58:58,637 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-01-31 14:58:58,638 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16, 16] total 16 [2019-01-31 14:58:58,638 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-01-31 14:58:58,638 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 31 [2019-01-31 14:58:58,638 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-01-31 14:58:58,638 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 17 states. [2019-01-31 14:58:58,712 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 31 edges. 31 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-01-31 14:58:58,713 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2019-01-31 14:58:58,713 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2019-01-31 14:58:58,713 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=122, Invalid=150, Unknown=0, NotChecked=0, Total=272 [2019-01-31 14:58:58,714 INFO L87 Difference]: Start difference. First operand 32 states and 33 transitions. Second operand 17 states. [2019-01-31 14:58:59,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 14:58:59,477 INFO L93 Difference]: Finished difference Result 35 states and 36 transitions. [2019-01-31 14:58:59,477 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2019-01-31 14:58:59,478 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 31 [2019-01-31 14:58:59,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-31 14:58:59,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2019-01-31 14:58:59,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 36 transitions. [2019-01-31 14:58:59,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2019-01-31 14:58:59,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 36 transitions. [2019-01-31 14:58:59,479 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 31 states and 36 transitions. [2019-01-31 14:58:59,510 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 36 edges. 36 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-01-31 14:58:59,511 INFO L225 Difference]: With dead ends: 35 [2019-01-31 14:58:59,511 INFO L226 Difference]: Without dead ends: 33 [2019-01-31 14:58:59,512 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 47 SyntacticMatches, 28 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 364 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=360, Invalid=570, Unknown=0, NotChecked=0, Total=930 [2019-01-31 14:58:59,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2019-01-31 14:58:59,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2019-01-31 14:58:59,939 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-01-31 14:58:59,939 INFO L82 GeneralOperation]: Start isEquivalent. First operand 33 states. Second operand 33 states. [2019-01-31 14:58:59,939 INFO L74 IsIncluded]: Start isIncluded. First operand 33 states. Second operand 33 states. [2019-01-31 14:58:59,939 INFO L87 Difference]: Start difference. First operand 33 states. Second operand 33 states. [2019-01-31 14:58:59,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 14:58:59,940 INFO L93 Difference]: Finished difference Result 33 states and 34 transitions. [2019-01-31 14:58:59,941 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 34 transitions. [2019-01-31 14:58:59,941 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-31 14:58:59,941 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-01-31 14:58:59,941 INFO L74 IsIncluded]: Start isIncluded. First operand 33 states. Second operand 33 states. [2019-01-31 14:58:59,942 INFO L87 Difference]: Start difference. First operand 33 states. Second operand 33 states. [2019-01-31 14:58:59,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 14:58:59,943 INFO L93 Difference]: Finished difference Result 33 states and 34 transitions. [2019-01-31 14:58:59,943 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 34 transitions. [2019-01-31 14:58:59,943 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-31 14:58:59,943 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-01-31 14:58:59,943 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-01-31 14:58:59,943 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-01-31 14:58:59,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2019-01-31 14:58:59,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 34 transitions. [2019-01-31 14:58:59,944 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 34 transitions. Word has length 31 [2019-01-31 14:58:59,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-31 14:58:59,944 INFO L480 AbstractCegarLoop]: Abstraction has 33 states and 34 transitions. [2019-01-31 14:58:59,944 INFO L481 AbstractCegarLoop]: Interpolant automaton has 17 states. [2019-01-31 14:58:59,944 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 34 transitions. [2019-01-31 14:58:59,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-01-31 14:58:59,945 INFO L394 BasicCegarLoop]: Found error trace [2019-01-31 14:58:59,945 INFO L402 BasicCegarLoop]: trace histogram [14, 14, 1, 1, 1, 1] [2019-01-31 14:58:59,945 INFO L423 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2019-01-31 14:58:59,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-31 14:58:59,945 INFO L82 PathProgramCache]: Analyzing trace with hash 969405866, now seen corresponding path program 21 times [2019-01-31 14:58:59,946 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-01-31 14:58:59,946 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-31 14:58:59,946 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-01-31 14:58:59,946 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-31 14:58:59,946 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-01-31 14:58:59,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-31 14:59:01,090 INFO L273 TraceCheckUtils]: 0: Hoare triple {5776#true} havoc main_#res;havoc main_#t~nondet0, main_#t~nondet2, main_#t~post1, main_#t~post4, main_#t~post3, main_#t~post6, main_#t~post5, main_~MAX~6, main_~str1~6, main_~str2~6, main_~cont~6, main_~i~6, main_~j~6;main_~MAX~6 := (if main_#t~nondet0 % 4294967296 % 4294967296 <= 2147483647 then main_#t~nondet0 % 4294967296 % 4294967296 else main_#t~nondet0 % 4294967296 % 4294967296 - 4294967296);havoc main_#t~nondet0;havoc main_~str1~6;havoc main_~str2~6;havoc main_~cont~6;havoc main_~i~6;havoc main_~j~6;main_~cont~6 := 0;main_~i~6 := 0; {5778#(and (<= ULTIMATE.start_main_~i~6 0) (<= 0 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:59:01,092 INFO L273 TraceCheckUtils]: 1: Hoare triple {5778#(and (<= ULTIMATE.start_main_~i~6 0) (<= 0 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {5779#(and (<= ULTIMATE.start_main_~i~6 1) (<= 1 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:59:01,093 INFO L273 TraceCheckUtils]: 2: Hoare triple {5779#(and (<= ULTIMATE.start_main_~i~6 1) (<= 1 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {5780#(and (<= ULTIMATE.start_main_~i~6 2) (<= 2 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:59:01,094 INFO L273 TraceCheckUtils]: 3: Hoare triple {5780#(and (<= ULTIMATE.start_main_~i~6 2) (<= 2 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {5781#(and (<= 3 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 3))} is VALID [2019-01-31 14:59:01,095 INFO L273 TraceCheckUtils]: 4: Hoare triple {5781#(and (<= 3 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 3))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {5782#(and (<= ULTIMATE.start_main_~i~6 4) (<= 4 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:59:01,096 INFO L273 TraceCheckUtils]: 5: Hoare triple {5782#(and (<= ULTIMATE.start_main_~i~6 4) (<= 4 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {5783#(and (<= 5 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 5))} is VALID [2019-01-31 14:59:01,096 INFO L273 TraceCheckUtils]: 6: Hoare triple {5783#(and (<= 5 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 5))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {5784#(and (<= ULTIMATE.start_main_~i~6 6) (<= 6 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:59:01,097 INFO L273 TraceCheckUtils]: 7: Hoare triple {5784#(and (<= ULTIMATE.start_main_~i~6 6) (<= 6 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {5785#(and (<= 7 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 7))} is VALID [2019-01-31 14:59:01,098 INFO L273 TraceCheckUtils]: 8: Hoare triple {5785#(and (<= 7 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 7))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {5786#(and (<= ULTIMATE.start_main_~i~6 8) (<= 8 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:59:01,099 INFO L273 TraceCheckUtils]: 9: Hoare triple {5786#(and (<= ULTIMATE.start_main_~i~6 8) (<= 8 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {5787#(and (<= ULTIMATE.start_main_~i~6 9) (<= 9 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:59:01,100 INFO L273 TraceCheckUtils]: 10: Hoare triple {5787#(and (<= ULTIMATE.start_main_~i~6 9) (<= 9 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {5788#(and (<= ULTIMATE.start_main_~i~6 10) (<= 10 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:59:01,101 INFO L273 TraceCheckUtils]: 11: Hoare triple {5788#(and (<= ULTIMATE.start_main_~i~6 10) (<= 10 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {5789#(and (<= 11 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 11))} is VALID [2019-01-31 14:59:01,102 INFO L273 TraceCheckUtils]: 12: Hoare triple {5789#(and (<= 11 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 11))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {5790#(and (<= ULTIMATE.start_main_~i~6 12) (<= 12 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:59:01,103 INFO L273 TraceCheckUtils]: 13: Hoare triple {5790#(and (<= ULTIMATE.start_main_~i~6 12) (<= 12 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {5791#(or (and (<= ULTIMATE.start_main_~i~6 13) (<= 13 ULTIMATE.start_main_~i~6)) (not (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 1))))} is VALID [2019-01-31 14:59:01,104 INFO L273 TraceCheckUtils]: 14: Hoare triple {5791#(or (and (<= ULTIMATE.start_main_~i~6 13) (<= 13 ULTIMATE.start_main_~i~6)) (not (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 1))))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {5792#(or (= 14 ULTIMATE.start_main_~MAX~6) (<= (+ ULTIMATE.start_main_~i~6 1) ULTIMATE.start_main_~MAX~6))} is VALID [2019-01-31 14:59:01,105 INFO L273 TraceCheckUtils]: 15: Hoare triple {5792#(or (= 14 ULTIMATE.start_main_~MAX~6) (<= (+ ULTIMATE.start_main_~i~6 1) ULTIMATE.start_main_~MAX~6))} assume !(main_~i~6 < main_~MAX~6);main_~str1~6 := main_~str1~6[main_~MAX~6 - 1 := 0];main_~j~6 := 0;main_~i~6 := main_~MAX~6 - 1; {5793#(= (+ ULTIMATE.start_main_~j~6 14) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:59:01,106 INFO L273 TraceCheckUtils]: 16: Hoare triple {5793#(= (+ ULTIMATE.start_main_~j~6 14) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {5794#(= (+ ULTIMATE.start_main_~j~6 13) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:59:01,107 INFO L273 TraceCheckUtils]: 17: Hoare triple {5794#(= (+ ULTIMATE.start_main_~j~6 13) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {5795#(= (+ ULTIMATE.start_main_~j~6 12) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:59:01,108 INFO L273 TraceCheckUtils]: 18: Hoare triple {5795#(= (+ ULTIMATE.start_main_~j~6 12) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {5796#(= (+ ULTIMATE.start_main_~j~6 11) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:59:01,109 INFO L273 TraceCheckUtils]: 19: Hoare triple {5796#(= (+ ULTIMATE.start_main_~j~6 11) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {5797#(= (+ ULTIMATE.start_main_~j~6 10) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:59:01,110 INFO L273 TraceCheckUtils]: 20: Hoare triple {5797#(= (+ ULTIMATE.start_main_~j~6 10) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {5798#(= (+ ULTIMATE.start_main_~j~6 9) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:59:01,111 INFO L273 TraceCheckUtils]: 21: Hoare triple {5798#(= (+ ULTIMATE.start_main_~j~6 9) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {5799#(= (+ ULTIMATE.start_main_~j~6 8) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:59:01,112 INFO L273 TraceCheckUtils]: 22: Hoare triple {5799#(= (+ ULTIMATE.start_main_~j~6 8) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {5800#(= (+ ULTIMATE.start_main_~j~6 7) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:59:01,113 INFO L273 TraceCheckUtils]: 23: Hoare triple {5800#(= (+ ULTIMATE.start_main_~j~6 7) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {5801#(= (+ ULTIMATE.start_main_~j~6 6) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:59:01,114 INFO L273 TraceCheckUtils]: 24: Hoare triple {5801#(= (+ ULTIMATE.start_main_~j~6 6) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {5802#(= (+ ULTIMATE.start_main_~j~6 5) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:59:01,115 INFO L273 TraceCheckUtils]: 25: Hoare triple {5802#(= (+ ULTIMATE.start_main_~j~6 5) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {5803#(= (+ ULTIMATE.start_main_~j~6 4) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:59:01,116 INFO L273 TraceCheckUtils]: 26: Hoare triple {5803#(= (+ ULTIMATE.start_main_~j~6 4) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {5804#(= (+ ULTIMATE.start_main_~j~6 3) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:59:01,117 INFO L273 TraceCheckUtils]: 27: Hoare triple {5804#(= (+ ULTIMATE.start_main_~j~6 3) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {5805#(= (+ ULTIMATE.start_main_~j~6 2) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:59:01,118 INFO L273 TraceCheckUtils]: 28: Hoare triple {5805#(= (+ ULTIMATE.start_main_~j~6 2) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {5806#(= (+ ULTIMATE.start_main_~j~6 1) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:59:01,119 INFO L273 TraceCheckUtils]: 29: Hoare triple {5806#(= (+ ULTIMATE.start_main_~j~6 1) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {5807#(= (select ULTIMATE.start_main_~str1~6 0) (select ULTIMATE.start_main_~str2~6 (+ ULTIMATE.start_main_~MAX~6 (- 1))))} is VALID [2019-01-31 14:59:01,120 INFO L273 TraceCheckUtils]: 30: Hoare triple {5807#(= (select ULTIMATE.start_main_~str1~6 0) (select ULTIMATE.start_main_~str2~6 (+ ULTIMATE.start_main_~MAX~6 (- 1))))} assume !(main_~i~6 >= 0);main_~j~6 := main_~MAX~6 - 1;main_~i~6 := 0;assume !!(main_~i~6 < main_~MAX~6);__VERIFIER_assert_#in~cond := (if main_~str1~6[main_~i~6] == main_~str2~6[main_~j~6] then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond;assume __VERIFIER_assert_~cond == 0;assume !false; {5777#false} is VALID [2019-01-31 14:59:01,121 INFO L273 TraceCheckUtils]: 31: Hoare triple {5777#false} assume !false; {5777#false} is VALID [2019-01-31 14:59:01,123 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 0 proven. 210 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-31 14:59:01,123 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-31 14:59:01,123 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-01-31 14:59:01,123 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-01-31 14:59:01,123 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-01-31 14:59:01,124 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-31 14:59:01,124 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 22 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 22 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-01-31 14:59:01,131 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2019-01-31 14:59:01,132 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder TERMS_WITH_SMALL_CONSTANTS_FIRST (IT: FPandBP) [2019-01-31 14:59:01,164 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-01-31 14:59:01,164 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-01-31 14:59:01,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-31 14:59:01,202 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-31 14:59:01,989 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2019-01-31 14:59:01,990 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-01-31 14:59:01,997 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-31 14:59:01,998 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:17, output treesize:16 [2019-01-31 14:59:02,001 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-01-31 14:59:02,001 WARN L398 uantifierElimination]: Input elimination task: ∃ [v_ULTIMATE.start_main_~str2~6_160]. (and (<= 14 ULTIMATE.start_main_~MAX~6) (= (store v_ULTIMATE.start_main_~str2~6_160 13 (select ULTIMATE.start_main_~str1~6 0)) ULTIMATE.start_main_~str2~6) (<= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 15))) [2019-01-31 14:59:02,001 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= (select ULTIMATE.start_main_~str2~6 13) (select ULTIMATE.start_main_~str1~6 0)) (<= 14 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 15))) [2019-01-31 14:59:02,059 INFO L273 TraceCheckUtils]: 0: Hoare triple {5776#true} havoc main_#res;havoc main_#t~nondet0, main_#t~nondet2, main_#t~post1, main_#t~post4, main_#t~post3, main_#t~post6, main_#t~post5, main_~MAX~6, main_~str1~6, main_~str2~6, main_~cont~6, main_~i~6, main_~j~6;main_~MAX~6 := (if main_#t~nondet0 % 4294967296 % 4294967296 <= 2147483647 then main_#t~nondet0 % 4294967296 % 4294967296 else main_#t~nondet0 % 4294967296 % 4294967296 - 4294967296);havoc main_#t~nondet0;havoc main_~str1~6;havoc main_~str2~6;havoc main_~cont~6;havoc main_~i~6;havoc main_~j~6;main_~cont~6 := 0;main_~i~6 := 0; {5776#true} is VALID [2019-01-31 14:59:02,059 INFO L273 TraceCheckUtils]: 1: Hoare triple {5776#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {5776#true} is VALID [2019-01-31 14:59:02,060 INFO L273 TraceCheckUtils]: 2: Hoare triple {5776#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {5776#true} is VALID [2019-01-31 14:59:02,060 INFO L273 TraceCheckUtils]: 3: Hoare triple {5776#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {5776#true} is VALID [2019-01-31 14:59:02,060 INFO L273 TraceCheckUtils]: 4: Hoare triple {5776#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {5776#true} is VALID [2019-01-31 14:59:02,060 INFO L273 TraceCheckUtils]: 5: Hoare triple {5776#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {5776#true} is VALID [2019-01-31 14:59:02,060 INFO L273 TraceCheckUtils]: 6: Hoare triple {5776#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {5776#true} is VALID [2019-01-31 14:59:02,061 INFO L273 TraceCheckUtils]: 7: Hoare triple {5776#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {5776#true} is VALID [2019-01-31 14:59:02,061 INFO L273 TraceCheckUtils]: 8: Hoare triple {5776#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {5776#true} is VALID [2019-01-31 14:59:02,061 INFO L273 TraceCheckUtils]: 9: Hoare triple {5776#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {5776#true} is VALID [2019-01-31 14:59:02,061 INFO L273 TraceCheckUtils]: 10: Hoare triple {5776#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {5776#true} is VALID [2019-01-31 14:59:02,061 INFO L273 TraceCheckUtils]: 11: Hoare triple {5776#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {5776#true} is VALID [2019-01-31 14:59:02,061 INFO L273 TraceCheckUtils]: 12: Hoare triple {5776#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {5776#true} is VALID [2019-01-31 14:59:02,062 INFO L273 TraceCheckUtils]: 13: Hoare triple {5776#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {5776#true} is VALID [2019-01-31 14:59:02,062 INFO L273 TraceCheckUtils]: 14: Hoare triple {5776#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {5776#true} is VALID [2019-01-31 14:59:02,062 INFO L273 TraceCheckUtils]: 15: Hoare triple {5776#true} assume !(main_~i~6 < main_~MAX~6);main_~str1~6 := main_~str1~6[main_~MAX~6 - 1 := 0];main_~j~6 := 0;main_~i~6 := main_~MAX~6 - 1; {5856#(and (= ULTIMATE.start_main_~j~6 0) (= (+ ULTIMATE.start_main_~i~6 1) ULTIMATE.start_main_~MAX~6))} is VALID [2019-01-31 14:59:02,063 INFO L273 TraceCheckUtils]: 16: Hoare triple {5856#(and (= ULTIMATE.start_main_~j~6 0) (= (+ ULTIMATE.start_main_~i~6 1) ULTIMATE.start_main_~MAX~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {5860#(and (= ULTIMATE.start_main_~j~6 1) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 2)))} is VALID [2019-01-31 14:59:02,063 INFO L273 TraceCheckUtils]: 17: Hoare triple {5860#(and (= ULTIMATE.start_main_~j~6 1) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 2)))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {5864#(and (= (+ ULTIMATE.start_main_~i~6 3) ULTIMATE.start_main_~MAX~6) (= ULTIMATE.start_main_~j~6 2))} is VALID [2019-01-31 14:59:02,064 INFO L273 TraceCheckUtils]: 18: Hoare triple {5864#(and (= (+ ULTIMATE.start_main_~i~6 3) ULTIMATE.start_main_~MAX~6) (= ULTIMATE.start_main_~j~6 2))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {5868#(and (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 4)) (= ULTIMATE.start_main_~j~6 3))} is VALID [2019-01-31 14:59:02,065 INFO L273 TraceCheckUtils]: 19: Hoare triple {5868#(and (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 4)) (= ULTIMATE.start_main_~j~6 3))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {5872#(and (= ULTIMATE.start_main_~j~6 4) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 5)))} is VALID [2019-01-31 14:59:02,066 INFO L273 TraceCheckUtils]: 20: Hoare triple {5872#(and (= ULTIMATE.start_main_~j~6 4) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 5)))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {5876#(and (= ULTIMATE.start_main_~j~6 5) (= (+ ULTIMATE.start_main_~i~6 6) ULTIMATE.start_main_~MAX~6))} is VALID [2019-01-31 14:59:02,067 INFO L273 TraceCheckUtils]: 21: Hoare triple {5876#(and (= ULTIMATE.start_main_~j~6 5) (= (+ ULTIMATE.start_main_~i~6 6) ULTIMATE.start_main_~MAX~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {5880#(and (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 7)) (= ULTIMATE.start_main_~j~6 6))} is VALID [2019-01-31 14:59:02,068 INFO L273 TraceCheckUtils]: 22: Hoare triple {5880#(and (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 7)) (= ULTIMATE.start_main_~j~6 6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {5884#(and (= ULTIMATE.start_main_~j~6 7) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 8)))} is VALID [2019-01-31 14:59:02,069 INFO L273 TraceCheckUtils]: 23: Hoare triple {5884#(and (= ULTIMATE.start_main_~j~6 7) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 8)))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {5888#(and (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 9)) (= ULTIMATE.start_main_~j~6 8))} is VALID [2019-01-31 14:59:02,070 INFO L273 TraceCheckUtils]: 24: Hoare triple {5888#(and (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 9)) (= ULTIMATE.start_main_~j~6 8))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {5892#(and (= ULTIMATE.start_main_~j~6 9) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 10)))} is VALID [2019-01-31 14:59:02,071 INFO L273 TraceCheckUtils]: 25: Hoare triple {5892#(and (= ULTIMATE.start_main_~j~6 9) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 10)))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {5896#(and (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 11)) (= ULTIMATE.start_main_~j~6 10))} is VALID [2019-01-31 14:59:02,072 INFO L273 TraceCheckUtils]: 26: Hoare triple {5896#(and (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 11)) (= ULTIMATE.start_main_~j~6 10))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {5900#(and (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 12)) (= ULTIMATE.start_main_~j~6 11))} is VALID [2019-01-31 14:59:02,073 INFO L273 TraceCheckUtils]: 27: Hoare triple {5900#(and (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 12)) (= ULTIMATE.start_main_~j~6 11))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {5904#(and (= ULTIMATE.start_main_~j~6 12) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 13)))} is VALID [2019-01-31 14:59:02,074 INFO L273 TraceCheckUtils]: 28: Hoare triple {5904#(and (= ULTIMATE.start_main_~j~6 12) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 13)))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {5908#(and (= ULTIMATE.start_main_~j~6 13) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 14)))} is VALID [2019-01-31 14:59:02,075 INFO L273 TraceCheckUtils]: 29: Hoare triple {5908#(and (= ULTIMATE.start_main_~j~6 13) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 14)))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {5912#(and (= (select ULTIMATE.start_main_~str2~6 13) (select ULTIMATE.start_main_~str1~6 0)) (<= 14 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 15)))} is VALID [2019-01-31 14:59:02,076 INFO L273 TraceCheckUtils]: 30: Hoare triple {5912#(and (= (select ULTIMATE.start_main_~str2~6 13) (select ULTIMATE.start_main_~str1~6 0)) (<= 14 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 15)))} assume !(main_~i~6 >= 0);main_~j~6 := main_~MAX~6 - 1;main_~i~6 := 0;assume !!(main_~i~6 < main_~MAX~6);__VERIFIER_assert_#in~cond := (if main_~str1~6[main_~i~6] == main_~str2~6[main_~j~6] then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond;assume __VERIFIER_assert_~cond == 0;assume !false; {5777#false} is VALID [2019-01-31 14:59:02,077 INFO L273 TraceCheckUtils]: 31: Hoare triple {5777#false} assume !false; {5777#false} is VALID [2019-01-31 14:59:02,079 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2019-01-31 14:59:02,079 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2019-01-31 14:59:02,200 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 5 [2019-01-31 14:59:02,201 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-01-31 14:59:02,212 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-31 14:59:02,213 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:22, output treesize:12 [2019-01-31 14:59:03,013 INFO L273 TraceCheckUtils]: 31: Hoare triple {5777#false} assume !false; {5777#false} is VALID [2019-01-31 14:59:03,015 INFO L273 TraceCheckUtils]: 30: Hoare triple {5922#(or (= (select ULTIMATE.start_main_~str1~6 0) (select ULTIMATE.start_main_~str2~6 (+ ULTIMATE.start_main_~MAX~6 (- 1)))) (<= 0 ULTIMATE.start_main_~i~6))} assume !(main_~i~6 >= 0);main_~j~6 := main_~MAX~6 - 1;main_~i~6 := 0;assume !!(main_~i~6 < main_~MAX~6);__VERIFIER_assert_#in~cond := (if main_~str1~6[main_~i~6] == main_~str2~6[main_~j~6] then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond;assume __VERIFIER_assert_~cond == 0;assume !false; {5777#false} is VALID [2019-01-31 14:59:03,016 INFO L273 TraceCheckUtils]: 29: Hoare triple {5926#(or (< ULTIMATE.start_main_~i~6 0) (< 0 ULTIMATE.start_main_~i~6) (= (+ ULTIMATE.start_main_~j~6 1) ULTIMATE.start_main_~MAX~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {5922#(or (= (select ULTIMATE.start_main_~str1~6 0) (select ULTIMATE.start_main_~str2~6 (+ ULTIMATE.start_main_~MAX~6 (- 1)))) (<= 0 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:59:03,017 INFO L273 TraceCheckUtils]: 28: Hoare triple {5930#(or (= (+ ULTIMATE.start_main_~j~6 2) ULTIMATE.start_main_~MAX~6) (< 1 ULTIMATE.start_main_~i~6) (< ULTIMATE.start_main_~i~6 1))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {5926#(or (< ULTIMATE.start_main_~i~6 0) (< 0 ULTIMATE.start_main_~i~6) (= (+ ULTIMATE.start_main_~j~6 1) ULTIMATE.start_main_~MAX~6))} is VALID [2019-01-31 14:59:03,018 INFO L273 TraceCheckUtils]: 27: Hoare triple {5934#(or (= (+ ULTIMATE.start_main_~j~6 3) ULTIMATE.start_main_~MAX~6) (< ULTIMATE.start_main_~i~6 2) (< 2 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {5930#(or (= (+ ULTIMATE.start_main_~j~6 2) ULTIMATE.start_main_~MAX~6) (< 1 ULTIMATE.start_main_~i~6) (< ULTIMATE.start_main_~i~6 1))} is VALID [2019-01-31 14:59:03,019 INFO L273 TraceCheckUtils]: 26: Hoare triple {5938#(or (= (+ ULTIMATE.start_main_~j~6 4) ULTIMATE.start_main_~MAX~6) (< ULTIMATE.start_main_~i~6 3) (< 3 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {5934#(or (= (+ ULTIMATE.start_main_~j~6 3) ULTIMATE.start_main_~MAX~6) (< ULTIMATE.start_main_~i~6 2) (< 2 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:59:03,020 INFO L273 TraceCheckUtils]: 25: Hoare triple {5942#(or (= (+ ULTIMATE.start_main_~j~6 5) ULTIMATE.start_main_~MAX~6) (< 4 ULTIMATE.start_main_~i~6) (< ULTIMATE.start_main_~i~6 4))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {5938#(or (= (+ ULTIMATE.start_main_~j~6 4) ULTIMATE.start_main_~MAX~6) (< ULTIMATE.start_main_~i~6 3) (< 3 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:59:03,021 INFO L273 TraceCheckUtils]: 24: Hoare triple {5946#(or (< ULTIMATE.start_main_~i~6 5) (< 5 ULTIMATE.start_main_~i~6) (= (+ ULTIMATE.start_main_~j~6 6) ULTIMATE.start_main_~MAX~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {5942#(or (= (+ ULTIMATE.start_main_~j~6 5) ULTIMATE.start_main_~MAX~6) (< 4 ULTIMATE.start_main_~i~6) (< ULTIMATE.start_main_~i~6 4))} is VALID [2019-01-31 14:59:03,023 INFO L273 TraceCheckUtils]: 23: Hoare triple {5950#(or (< ULTIMATE.start_main_~i~6 6) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 7)) (< 6 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {5946#(or (< ULTIMATE.start_main_~i~6 5) (< 5 ULTIMATE.start_main_~i~6) (= (+ ULTIMATE.start_main_~j~6 6) ULTIMATE.start_main_~MAX~6))} is VALID [2019-01-31 14:59:03,024 INFO L273 TraceCheckUtils]: 22: Hoare triple {5954#(or (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 8)) (< ULTIMATE.start_main_~i~6 7) (< 7 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {5950#(or (< ULTIMATE.start_main_~i~6 6) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 7)) (< 6 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:59:03,025 INFO L273 TraceCheckUtils]: 21: Hoare triple {5958#(or (< 8 ULTIMATE.start_main_~i~6) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 9)) (< ULTIMATE.start_main_~i~6 8))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {5954#(or (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 8)) (< ULTIMATE.start_main_~i~6 7) (< 7 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:59:03,026 INFO L273 TraceCheckUtils]: 20: Hoare triple {5962#(or (< ULTIMATE.start_main_~i~6 9) (= (+ ULTIMATE.start_main_~j~6 10) ULTIMATE.start_main_~MAX~6) (< 9 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {5958#(or (< 8 ULTIMATE.start_main_~i~6) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 9)) (< ULTIMATE.start_main_~i~6 8))} is VALID [2019-01-31 14:59:03,027 INFO L273 TraceCheckUtils]: 19: Hoare triple {5966#(or (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 11)) (< 10 ULTIMATE.start_main_~i~6) (< ULTIMATE.start_main_~i~6 10))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {5962#(or (< ULTIMATE.start_main_~i~6 9) (= (+ ULTIMATE.start_main_~j~6 10) ULTIMATE.start_main_~MAX~6) (< 9 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:59:03,028 INFO L273 TraceCheckUtils]: 18: Hoare triple {5970#(or (< ULTIMATE.start_main_~i~6 11) (= (+ ULTIMATE.start_main_~j~6 12) ULTIMATE.start_main_~MAX~6) (< 11 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {5966#(or (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 11)) (< 10 ULTIMATE.start_main_~i~6) (< ULTIMATE.start_main_~i~6 10))} is VALID [2019-01-31 14:59:03,029 INFO L273 TraceCheckUtils]: 17: Hoare triple {5974#(or (< 12 ULTIMATE.start_main_~i~6) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 13)) (< ULTIMATE.start_main_~i~6 12))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {5970#(or (< ULTIMATE.start_main_~i~6 11) (= (+ ULTIMATE.start_main_~j~6 12) ULTIMATE.start_main_~MAX~6) (< 11 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:59:03,031 INFO L273 TraceCheckUtils]: 16: Hoare triple {5978#(or (< ULTIMATE.start_main_~i~6 13) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 14)) (< 13 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {5974#(or (< 12 ULTIMATE.start_main_~i~6) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 13)) (< ULTIMATE.start_main_~i~6 12))} is VALID [2019-01-31 14:59:03,032 INFO L273 TraceCheckUtils]: 15: Hoare triple {5776#true} assume !(main_~i~6 < main_~MAX~6);main_~str1~6 := main_~str1~6[main_~MAX~6 - 1 := 0];main_~j~6 := 0;main_~i~6 := main_~MAX~6 - 1; {5978#(or (< ULTIMATE.start_main_~i~6 13) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 14)) (< 13 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:59:03,032 INFO L273 TraceCheckUtils]: 14: Hoare triple {5776#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {5776#true} is VALID [2019-01-31 14:59:03,032 INFO L273 TraceCheckUtils]: 13: Hoare triple {5776#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {5776#true} is VALID [2019-01-31 14:59:03,032 INFO L273 TraceCheckUtils]: 12: Hoare triple {5776#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {5776#true} is VALID [2019-01-31 14:59:03,033 INFO L273 TraceCheckUtils]: 11: Hoare triple {5776#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {5776#true} is VALID [2019-01-31 14:59:03,033 INFO L273 TraceCheckUtils]: 10: Hoare triple {5776#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {5776#true} is VALID [2019-01-31 14:59:03,033 INFO L273 TraceCheckUtils]: 9: Hoare triple {5776#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {5776#true} is VALID [2019-01-31 14:59:03,033 INFO L273 TraceCheckUtils]: 8: Hoare triple {5776#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {5776#true} is VALID [2019-01-31 14:59:03,033 INFO L273 TraceCheckUtils]: 7: Hoare triple {5776#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {5776#true} is VALID [2019-01-31 14:59:03,033 INFO L273 TraceCheckUtils]: 6: Hoare triple {5776#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {5776#true} is VALID [2019-01-31 14:59:03,033 INFO L273 TraceCheckUtils]: 5: Hoare triple {5776#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {5776#true} is VALID [2019-01-31 14:59:03,034 INFO L273 TraceCheckUtils]: 4: Hoare triple {5776#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {5776#true} is VALID [2019-01-31 14:59:03,034 INFO L273 TraceCheckUtils]: 3: Hoare triple {5776#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {5776#true} is VALID [2019-01-31 14:59:03,034 INFO L273 TraceCheckUtils]: 2: Hoare triple {5776#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {5776#true} is VALID [2019-01-31 14:59:03,034 INFO L273 TraceCheckUtils]: 1: Hoare triple {5776#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {5776#true} is VALID [2019-01-31 14:59:03,034 INFO L273 TraceCheckUtils]: 0: Hoare triple {5776#true} havoc main_#res;havoc main_#t~nondet0, main_#t~nondet2, main_#t~post1, main_#t~post4, main_#t~post3, main_#t~post6, main_#t~post5, main_~MAX~6, main_~str1~6, main_~str2~6, main_~cont~6, main_~i~6, main_~j~6;main_~MAX~6 := (if main_#t~nondet0 % 4294967296 % 4294967296 <= 2147483647 then main_#t~nondet0 % 4294967296 % 4294967296 else main_#t~nondet0 % 4294967296 % 4294967296 - 4294967296);havoc main_#t~nondet0;havoc main_~str1~6;havoc main_~str2~6;havoc main_~cont~6;havoc main_~i~6;havoc main_~j~6;main_~cont~6 := 0;main_~i~6 := 0; {5776#true} is VALID [2019-01-31 14:59:03,036 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2019-01-31 14:59:03,054 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-01-31 14:59:03,055 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [31, 17, 17] total 62 [2019-01-31 14:59:03,055 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-01-31 14:59:03,055 INFO L78 Accepts]: Start accepts. Automaton has 47 states. Word has length 32 [2019-01-31 14:59:03,055 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-01-31 14:59:03,055 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 47 states. [2019-01-31 14:59:03,103 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 50 edges. 50 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-01-31 14:59:03,103 INFO L459 AbstractCegarLoop]: Interpolant automaton has 47 states [2019-01-31 14:59:03,103 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants. [2019-01-31 14:59:03,105 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=542, Invalid=3240, Unknown=0, NotChecked=0, Total=3782 [2019-01-31 14:59:03,105 INFO L87 Difference]: Start difference. First operand 33 states and 34 transitions. Second operand 47 states. [2019-01-31 14:59:08,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 14:59:08,451 INFO L93 Difference]: Finished difference Result 53 states and 57 transitions. [2019-01-31 14:59:08,452 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2019-01-31 14:59:08,452 INFO L78 Accepts]: Start accepts. Automaton has 47 states. Word has length 32 [2019-01-31 14:59:08,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-31 14:59:08,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2019-01-31 14:59:08,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 57 transitions. [2019-01-31 14:59:08,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2019-01-31 14:59:08,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 57 transitions. [2019-01-31 14:59:08,455 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 50 states and 57 transitions. [2019-01-31 14:59:08,647 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 57 edges. 57 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-01-31 14:59:08,648 INFO L225 Difference]: With dead ends: 53 [2019-01-31 14:59:08,648 INFO L226 Difference]: Without dead ends: 35 [2019-01-31 14:59:08,650 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 526 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=925, Invalid=5555, Unknown=0, NotChecked=0, Total=6480 [2019-01-31 14:59:08,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2019-01-31 14:59:09,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2019-01-31 14:59:09,071 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-01-31 14:59:09,071 INFO L82 GeneralOperation]: Start isEquivalent. First operand 35 states. Second operand 35 states. [2019-01-31 14:59:09,071 INFO L74 IsIncluded]: Start isIncluded. First operand 35 states. Second operand 35 states. [2019-01-31 14:59:09,071 INFO L87 Difference]: Start difference. First operand 35 states. Second operand 35 states. [2019-01-31 14:59:09,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 14:59:09,072 INFO L93 Difference]: Finished difference Result 35 states and 36 transitions. [2019-01-31 14:59:09,072 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 36 transitions. [2019-01-31 14:59:09,072 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-31 14:59:09,073 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-01-31 14:59:09,073 INFO L74 IsIncluded]: Start isIncluded. First operand 35 states. Second operand 35 states. [2019-01-31 14:59:09,073 INFO L87 Difference]: Start difference. First operand 35 states. Second operand 35 states. [2019-01-31 14:59:09,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 14:59:09,074 INFO L93 Difference]: Finished difference Result 35 states and 36 transitions. [2019-01-31 14:59:09,074 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 36 transitions. [2019-01-31 14:59:09,074 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-31 14:59:09,074 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-01-31 14:59:09,074 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-01-31 14:59:09,075 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-01-31 14:59:09,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2019-01-31 14:59:09,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 36 transitions. [2019-01-31 14:59:09,075 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 36 transitions. Word has length 32 [2019-01-31 14:59:09,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-31 14:59:09,075 INFO L480 AbstractCegarLoop]: Abstraction has 35 states and 36 transitions. [2019-01-31 14:59:09,075 INFO L481 AbstractCegarLoop]: Interpolant automaton has 47 states. [2019-01-31 14:59:09,075 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 36 transitions. [2019-01-31 14:59:09,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-01-31 14:59:09,076 INFO L394 BasicCegarLoop]: Found error trace [2019-01-31 14:59:09,076 INFO L402 BasicCegarLoop]: trace histogram [15, 15, 1, 1, 1, 1] [2019-01-31 14:59:09,076 INFO L423 AbstractCegarLoop]: === Iteration 24 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2019-01-31 14:59:09,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-31 14:59:09,076 INFO L82 PathProgramCache]: Analyzing trace with hash -1714035115, now seen corresponding path program 22 times [2019-01-31 14:59:09,076 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-01-31 14:59:09,077 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-31 14:59:09,077 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-01-31 14:59:09,077 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-31 14:59:09,077 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-01-31 14:59:09,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-31 14:59:10,206 INFO L273 TraceCheckUtils]: 0: Hoare triple {6305#true} havoc main_#res;havoc main_#t~nondet0, main_#t~nondet2, main_#t~post1, main_#t~post4, main_#t~post3, main_#t~post6, main_#t~post5, main_~MAX~6, main_~str1~6, main_~str2~6, main_~cont~6, main_~i~6, main_~j~6;main_~MAX~6 := (if main_#t~nondet0 % 4294967296 % 4294967296 <= 2147483647 then main_#t~nondet0 % 4294967296 % 4294967296 else main_#t~nondet0 % 4294967296 % 4294967296 - 4294967296);havoc main_#t~nondet0;havoc main_~str1~6;havoc main_~str2~6;havoc main_~cont~6;havoc main_~i~6;havoc main_~j~6;main_~cont~6 := 0;main_~i~6 := 0; {6307#(and (<= ULTIMATE.start_main_~i~6 0) (<= 0 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:59:10,207 INFO L273 TraceCheckUtils]: 1: Hoare triple {6307#(and (<= ULTIMATE.start_main_~i~6 0) (<= 0 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {6308#(and (<= ULTIMATE.start_main_~i~6 1) (<= 1 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:59:10,208 INFO L273 TraceCheckUtils]: 2: Hoare triple {6308#(and (<= ULTIMATE.start_main_~i~6 1) (<= 1 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {6309#(and (<= ULTIMATE.start_main_~i~6 2) (<= 2 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:59:10,209 INFO L273 TraceCheckUtils]: 3: Hoare triple {6309#(and (<= ULTIMATE.start_main_~i~6 2) (<= 2 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {6310#(and (<= 3 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 3))} is VALID [2019-01-31 14:59:10,210 INFO L273 TraceCheckUtils]: 4: Hoare triple {6310#(and (<= 3 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 3))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {6311#(and (<= ULTIMATE.start_main_~i~6 4) (<= 4 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:59:10,211 INFO L273 TraceCheckUtils]: 5: Hoare triple {6311#(and (<= ULTIMATE.start_main_~i~6 4) (<= 4 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {6312#(and (<= 5 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 5))} is VALID [2019-01-31 14:59:10,212 INFO L273 TraceCheckUtils]: 6: Hoare triple {6312#(and (<= 5 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 5))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {6313#(and (<= ULTIMATE.start_main_~i~6 6) (<= 6 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:59:10,213 INFO L273 TraceCheckUtils]: 7: Hoare triple {6313#(and (<= ULTIMATE.start_main_~i~6 6) (<= 6 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {6314#(and (<= 7 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 7))} is VALID [2019-01-31 14:59:10,213 INFO L273 TraceCheckUtils]: 8: Hoare triple {6314#(and (<= 7 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 7))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {6315#(and (<= ULTIMATE.start_main_~i~6 8) (<= 8 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:59:10,214 INFO L273 TraceCheckUtils]: 9: Hoare triple {6315#(and (<= ULTIMATE.start_main_~i~6 8) (<= 8 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {6316#(and (<= ULTIMATE.start_main_~i~6 9) (<= 9 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:59:10,215 INFO L273 TraceCheckUtils]: 10: Hoare triple {6316#(and (<= ULTIMATE.start_main_~i~6 9) (<= 9 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {6317#(and (<= ULTIMATE.start_main_~i~6 10) (<= 10 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:59:10,216 INFO L273 TraceCheckUtils]: 11: Hoare triple {6317#(and (<= ULTIMATE.start_main_~i~6 10) (<= 10 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {6318#(and (<= 11 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 11))} is VALID [2019-01-31 14:59:10,217 INFO L273 TraceCheckUtils]: 12: Hoare triple {6318#(and (<= 11 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 11))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {6319#(and (<= ULTIMATE.start_main_~i~6 12) (<= 12 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:59:10,218 INFO L273 TraceCheckUtils]: 13: Hoare triple {6319#(and (<= ULTIMATE.start_main_~i~6 12) (<= 12 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {6320#(and (<= ULTIMATE.start_main_~i~6 13) (<= 13 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:59:10,219 INFO L273 TraceCheckUtils]: 14: Hoare triple {6320#(and (<= ULTIMATE.start_main_~i~6 13) (<= 13 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {6321#(or (not (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 1))) (and (<= ULTIMATE.start_main_~i~6 14) (<= 14 ULTIMATE.start_main_~i~6)))} is VALID [2019-01-31 14:59:10,220 INFO L273 TraceCheckUtils]: 15: Hoare triple {6321#(or (not (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 1))) (and (<= ULTIMATE.start_main_~i~6 14) (<= 14 ULTIMATE.start_main_~i~6)))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {6322#(or (<= (+ ULTIMATE.start_main_~i~6 1) ULTIMATE.start_main_~MAX~6) (= 15 ULTIMATE.start_main_~MAX~6))} is VALID [2019-01-31 14:59:10,221 INFO L273 TraceCheckUtils]: 16: Hoare triple {6322#(or (<= (+ ULTIMATE.start_main_~i~6 1) ULTIMATE.start_main_~MAX~6) (= 15 ULTIMATE.start_main_~MAX~6))} assume !(main_~i~6 < main_~MAX~6);main_~str1~6 := main_~str1~6[main_~MAX~6 - 1 := 0];main_~j~6 := 0;main_~i~6 := main_~MAX~6 - 1; {6323#(= (+ ULTIMATE.start_main_~j~6 15) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:59:10,222 INFO L273 TraceCheckUtils]: 17: Hoare triple {6323#(= (+ ULTIMATE.start_main_~j~6 15) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {6324#(= (+ ULTIMATE.start_main_~j~6 14) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:59:10,223 INFO L273 TraceCheckUtils]: 18: Hoare triple {6324#(= (+ ULTIMATE.start_main_~j~6 14) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {6325#(= (+ ULTIMATE.start_main_~j~6 13) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:59:10,224 INFO L273 TraceCheckUtils]: 19: Hoare triple {6325#(= (+ ULTIMATE.start_main_~j~6 13) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {6326#(= (+ ULTIMATE.start_main_~j~6 12) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:59:10,225 INFO L273 TraceCheckUtils]: 20: Hoare triple {6326#(= (+ ULTIMATE.start_main_~j~6 12) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {6327#(= (+ ULTIMATE.start_main_~j~6 11) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:59:10,226 INFO L273 TraceCheckUtils]: 21: Hoare triple {6327#(= (+ ULTIMATE.start_main_~j~6 11) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {6328#(= (+ ULTIMATE.start_main_~j~6 10) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:59:10,227 INFO L273 TraceCheckUtils]: 22: Hoare triple {6328#(= (+ ULTIMATE.start_main_~j~6 10) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {6329#(= (+ ULTIMATE.start_main_~j~6 9) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:59:10,228 INFO L273 TraceCheckUtils]: 23: Hoare triple {6329#(= (+ ULTIMATE.start_main_~j~6 9) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {6330#(= (+ ULTIMATE.start_main_~j~6 8) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:59:10,229 INFO L273 TraceCheckUtils]: 24: Hoare triple {6330#(= (+ ULTIMATE.start_main_~j~6 8) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {6331#(= (+ ULTIMATE.start_main_~j~6 7) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:59:10,230 INFO L273 TraceCheckUtils]: 25: Hoare triple {6331#(= (+ ULTIMATE.start_main_~j~6 7) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {6332#(= (+ ULTIMATE.start_main_~j~6 6) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:59:10,231 INFO L273 TraceCheckUtils]: 26: Hoare triple {6332#(= (+ ULTIMATE.start_main_~j~6 6) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {6333#(= (+ ULTIMATE.start_main_~j~6 5) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:59:10,232 INFO L273 TraceCheckUtils]: 27: Hoare triple {6333#(= (+ ULTIMATE.start_main_~j~6 5) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {6334#(= (+ ULTIMATE.start_main_~j~6 4) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:59:10,233 INFO L273 TraceCheckUtils]: 28: Hoare triple {6334#(= (+ ULTIMATE.start_main_~j~6 4) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {6335#(= (+ ULTIMATE.start_main_~j~6 3) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:59:10,234 INFO L273 TraceCheckUtils]: 29: Hoare triple {6335#(= (+ ULTIMATE.start_main_~j~6 3) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {6336#(= (+ ULTIMATE.start_main_~j~6 2) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:59:10,235 INFO L273 TraceCheckUtils]: 30: Hoare triple {6336#(= (+ ULTIMATE.start_main_~j~6 2) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {6337#(= (+ ULTIMATE.start_main_~j~6 1) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:59:10,236 INFO L273 TraceCheckUtils]: 31: Hoare triple {6337#(= (+ ULTIMATE.start_main_~j~6 1) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {6338#(= (select ULTIMATE.start_main_~str1~6 0) (select ULTIMATE.start_main_~str2~6 (+ ULTIMATE.start_main_~MAX~6 (- 1))))} is VALID [2019-01-31 14:59:10,237 INFO L273 TraceCheckUtils]: 32: Hoare triple {6338#(= (select ULTIMATE.start_main_~str1~6 0) (select ULTIMATE.start_main_~str2~6 (+ ULTIMATE.start_main_~MAX~6 (- 1))))} assume !(main_~i~6 >= 0);main_~j~6 := main_~MAX~6 - 1;main_~i~6 := 0;assume !!(main_~i~6 < main_~MAX~6);__VERIFIER_assert_#in~cond := (if main_~str1~6[main_~i~6] == main_~str2~6[main_~j~6] then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond;assume __VERIFIER_assert_~cond == 0;assume !false; {6306#false} is VALID [2019-01-31 14:59:10,237 INFO L273 TraceCheckUtils]: 33: Hoare triple {6306#false} assume !false; {6306#false} is VALID [2019-01-31 14:59:10,240 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 0 proven. 240 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-31 14:59:10,240 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-31 14:59:10,240 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-01-31 14:59:10,240 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-01-31 14:59:10,240 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-01-31 14:59:10,240 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-31 14:59:10,240 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 23 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 23 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-01-31 14:59:10,248 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-31 14:59:10,248 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2019-01-31 14:59:10,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-31 14:59:10,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-31 14:59:10,309 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-31 14:59:11,401 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2019-01-31 14:59:11,403 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-01-31 14:59:11,407 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-31 14:59:11,408 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:15, output treesize:14 [2019-01-31 14:59:11,410 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-01-31 14:59:11,410 WARN L398 uantifierElimination]: Input elimination task: ∃ [v_ULTIMATE.start_main_~str2~6_175]. (and (<= 15 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 15) (= (store v_ULTIMATE.start_main_~str2~6_175 14 (select ULTIMATE.start_main_~str1~6 0)) ULTIMATE.start_main_~str2~6)) [2019-01-31 14:59:11,410 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (and (<= 15 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 15) (= (select ULTIMATE.start_main_~str1~6 0) (select ULTIMATE.start_main_~str2~6 14))) [2019-01-31 14:59:11,467 INFO L273 TraceCheckUtils]: 0: Hoare triple {6305#true} havoc main_#res;havoc main_#t~nondet0, main_#t~nondet2, main_#t~post1, main_#t~post4, main_#t~post3, main_#t~post6, main_#t~post5, main_~MAX~6, main_~str1~6, main_~str2~6, main_~cont~6, main_~i~6, main_~j~6;main_~MAX~6 := (if main_#t~nondet0 % 4294967296 % 4294967296 <= 2147483647 then main_#t~nondet0 % 4294967296 % 4294967296 else main_#t~nondet0 % 4294967296 % 4294967296 - 4294967296);havoc main_#t~nondet0;havoc main_~str1~6;havoc main_~str2~6;havoc main_~cont~6;havoc main_~i~6;havoc main_~j~6;main_~cont~6 := 0;main_~i~6 := 0; {6307#(and (<= ULTIMATE.start_main_~i~6 0) (<= 0 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:59:11,468 INFO L273 TraceCheckUtils]: 1: Hoare triple {6307#(and (<= ULTIMATE.start_main_~i~6 0) (<= 0 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {6308#(and (<= ULTIMATE.start_main_~i~6 1) (<= 1 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:59:11,469 INFO L273 TraceCheckUtils]: 2: Hoare triple {6308#(and (<= ULTIMATE.start_main_~i~6 1) (<= 1 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {6309#(and (<= ULTIMATE.start_main_~i~6 2) (<= 2 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:59:11,470 INFO L273 TraceCheckUtils]: 3: Hoare triple {6309#(and (<= ULTIMATE.start_main_~i~6 2) (<= 2 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {6310#(and (<= 3 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 3))} is VALID [2019-01-31 14:59:11,471 INFO L273 TraceCheckUtils]: 4: Hoare triple {6310#(and (<= 3 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 3))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {6311#(and (<= ULTIMATE.start_main_~i~6 4) (<= 4 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:59:11,472 INFO L273 TraceCheckUtils]: 5: Hoare triple {6311#(and (<= ULTIMATE.start_main_~i~6 4) (<= 4 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {6312#(and (<= 5 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 5))} is VALID [2019-01-31 14:59:11,473 INFO L273 TraceCheckUtils]: 6: Hoare triple {6312#(and (<= 5 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 5))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {6313#(and (<= ULTIMATE.start_main_~i~6 6) (<= 6 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:59:11,474 INFO L273 TraceCheckUtils]: 7: Hoare triple {6313#(and (<= ULTIMATE.start_main_~i~6 6) (<= 6 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {6314#(and (<= 7 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 7))} is VALID [2019-01-31 14:59:11,475 INFO L273 TraceCheckUtils]: 8: Hoare triple {6314#(and (<= 7 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 7))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {6315#(and (<= ULTIMATE.start_main_~i~6 8) (<= 8 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:59:11,476 INFO L273 TraceCheckUtils]: 9: Hoare triple {6315#(and (<= ULTIMATE.start_main_~i~6 8) (<= 8 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {6316#(and (<= ULTIMATE.start_main_~i~6 9) (<= 9 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:59:11,476 INFO L273 TraceCheckUtils]: 10: Hoare triple {6316#(and (<= ULTIMATE.start_main_~i~6 9) (<= 9 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {6317#(and (<= ULTIMATE.start_main_~i~6 10) (<= 10 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:59:11,477 INFO L273 TraceCheckUtils]: 11: Hoare triple {6317#(and (<= ULTIMATE.start_main_~i~6 10) (<= 10 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {6318#(and (<= 11 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 11))} is VALID [2019-01-31 14:59:11,478 INFO L273 TraceCheckUtils]: 12: Hoare triple {6318#(and (<= 11 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 11))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {6319#(and (<= ULTIMATE.start_main_~i~6 12) (<= 12 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:59:11,479 INFO L273 TraceCheckUtils]: 13: Hoare triple {6319#(and (<= ULTIMATE.start_main_~i~6 12) (<= 12 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {6320#(and (<= ULTIMATE.start_main_~i~6 13) (<= 13 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:59:11,480 INFO L273 TraceCheckUtils]: 14: Hoare triple {6320#(and (<= ULTIMATE.start_main_~i~6 13) (<= 13 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {6384#(and (<= ULTIMATE.start_main_~i~6 14) (<= 14 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:59:11,481 INFO L273 TraceCheckUtils]: 15: Hoare triple {6384#(and (<= ULTIMATE.start_main_~i~6 14) (<= 14 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {6388#(and (<= 15 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~i~6 15))} is VALID [2019-01-31 14:59:11,482 INFO L273 TraceCheckUtils]: 16: Hoare triple {6388#(and (<= 15 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~i~6 15))} assume !(main_~i~6 < main_~MAX~6);main_~str1~6 := main_~str1~6[main_~MAX~6 - 1 := 0];main_~j~6 := 0;main_~i~6 := main_~MAX~6 - 1; {6392#(and (<= 15 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 15) (= ULTIMATE.start_main_~j~6 0))} is VALID [2019-01-31 14:59:11,483 INFO L273 TraceCheckUtils]: 17: Hoare triple {6392#(and (<= 15 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 15) (= ULTIMATE.start_main_~j~6 0))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {6396#(and (<= 15 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 15) (= ULTIMATE.start_main_~j~6 1))} is VALID [2019-01-31 14:59:11,484 INFO L273 TraceCheckUtils]: 18: Hoare triple {6396#(and (<= 15 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 15) (= ULTIMATE.start_main_~j~6 1))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {6400#(and (<= 15 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 15) (= ULTIMATE.start_main_~j~6 2))} is VALID [2019-01-31 14:59:11,485 INFO L273 TraceCheckUtils]: 19: Hoare triple {6400#(and (<= 15 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 15) (= ULTIMATE.start_main_~j~6 2))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {6404#(and (<= 15 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 15) (= ULTIMATE.start_main_~j~6 3))} is VALID [2019-01-31 14:59:11,486 INFO L273 TraceCheckUtils]: 20: Hoare triple {6404#(and (<= 15 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 15) (= ULTIMATE.start_main_~j~6 3))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {6408#(and (<= 15 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 15) (= ULTIMATE.start_main_~j~6 4))} is VALID [2019-01-31 14:59:11,486 INFO L273 TraceCheckUtils]: 21: Hoare triple {6408#(and (<= 15 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 15) (= ULTIMATE.start_main_~j~6 4))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {6412#(and (<= 15 ULTIMATE.start_main_~MAX~6) (= ULTIMATE.start_main_~j~6 5) (<= ULTIMATE.start_main_~MAX~6 15))} is VALID [2019-01-31 14:59:11,487 INFO L273 TraceCheckUtils]: 22: Hoare triple {6412#(and (<= 15 ULTIMATE.start_main_~MAX~6) (= ULTIMATE.start_main_~j~6 5) (<= ULTIMATE.start_main_~MAX~6 15))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {6416#(and (<= 15 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 15) (= ULTIMATE.start_main_~j~6 6))} is VALID [2019-01-31 14:59:11,488 INFO L273 TraceCheckUtils]: 23: Hoare triple {6416#(and (<= 15 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 15) (= ULTIMATE.start_main_~j~6 6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {6420#(and (<= 15 ULTIMATE.start_main_~MAX~6) (= ULTIMATE.start_main_~j~6 7) (<= ULTIMATE.start_main_~MAX~6 15))} is VALID [2019-01-31 14:59:11,489 INFO L273 TraceCheckUtils]: 24: Hoare triple {6420#(and (<= 15 ULTIMATE.start_main_~MAX~6) (= ULTIMATE.start_main_~j~6 7) (<= ULTIMATE.start_main_~MAX~6 15))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {6424#(and (<= 15 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 15) (= ULTIMATE.start_main_~j~6 8))} is VALID [2019-01-31 14:59:11,490 INFO L273 TraceCheckUtils]: 25: Hoare triple {6424#(and (<= 15 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 15) (= ULTIMATE.start_main_~j~6 8))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {6428#(and (<= 15 ULTIMATE.start_main_~MAX~6) (= ULTIMATE.start_main_~j~6 9) (<= ULTIMATE.start_main_~MAX~6 15))} is VALID [2019-01-31 14:59:11,490 INFO L273 TraceCheckUtils]: 26: Hoare triple {6428#(and (<= 15 ULTIMATE.start_main_~MAX~6) (= ULTIMATE.start_main_~j~6 9) (<= ULTIMATE.start_main_~MAX~6 15))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {6432#(and (<= 15 ULTIMATE.start_main_~MAX~6) (= ULTIMATE.start_main_~j~6 10) (<= ULTIMATE.start_main_~MAX~6 15))} is VALID [2019-01-31 14:59:11,491 INFO L273 TraceCheckUtils]: 27: Hoare triple {6432#(and (<= 15 ULTIMATE.start_main_~MAX~6) (= ULTIMATE.start_main_~j~6 10) (<= ULTIMATE.start_main_~MAX~6 15))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {6436#(and (<= 15 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 15) (= ULTIMATE.start_main_~j~6 11))} is VALID [2019-01-31 14:59:11,492 INFO L273 TraceCheckUtils]: 28: Hoare triple {6436#(and (<= 15 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 15) (= ULTIMATE.start_main_~j~6 11))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {6440#(and (<= 15 ULTIMATE.start_main_~MAX~6) (= ULTIMATE.start_main_~j~6 12) (<= ULTIMATE.start_main_~MAX~6 15))} is VALID [2019-01-31 14:59:11,493 INFO L273 TraceCheckUtils]: 29: Hoare triple {6440#(and (<= 15 ULTIMATE.start_main_~MAX~6) (= ULTIMATE.start_main_~j~6 12) (<= ULTIMATE.start_main_~MAX~6 15))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {6444#(and (<= 15 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 15) (= ULTIMATE.start_main_~j~6 13))} is VALID [2019-01-31 14:59:11,494 INFO L273 TraceCheckUtils]: 30: Hoare triple {6444#(and (<= 15 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 15) (= ULTIMATE.start_main_~j~6 13))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {6448#(and (<= 15 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 15) (= ULTIMATE.start_main_~j~6 14))} is VALID [2019-01-31 14:59:11,495 INFO L273 TraceCheckUtils]: 31: Hoare triple {6448#(and (<= 15 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 15) (= ULTIMATE.start_main_~j~6 14))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {6452#(and (<= 15 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 15) (= (select ULTIMATE.start_main_~str1~6 0) (select ULTIMATE.start_main_~str2~6 14)))} is VALID [2019-01-31 14:59:11,496 INFO L273 TraceCheckUtils]: 32: Hoare triple {6452#(and (<= 15 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 15) (= (select ULTIMATE.start_main_~str1~6 0) (select ULTIMATE.start_main_~str2~6 14)))} assume !(main_~i~6 >= 0);main_~j~6 := main_~MAX~6 - 1;main_~i~6 := 0;assume !!(main_~i~6 < main_~MAX~6);__VERIFIER_assert_#in~cond := (if main_~str1~6[main_~i~6] == main_~str2~6[main_~j~6] then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond;assume __VERIFIER_assert_~cond == 0;assume !false; {6306#false} is VALID [2019-01-31 14:59:11,496 INFO L273 TraceCheckUtils]: 33: Hoare triple {6306#false} assume !false; {6306#false} is VALID [2019-01-31 14:59:11,498 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 0 proven. 240 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-31 14:59:11,499 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2019-01-31 14:59:11,526 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 5 [2019-01-31 14:59:11,528 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-01-31 14:59:11,531 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-31 14:59:11,531 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:14, output treesize:5 [2019-01-31 14:59:11,533 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-01-31 14:59:11,534 WARN L398 uantifierElimination]: Input elimination task: ∀ [ULTIMATE.start_main_~str2~6, ULTIMATE.start_main_~str1~6]. (let ((.cse0 (select ULTIMATE.start_main_~str1~6 0))) (= .cse0 (select (store ULTIMATE.start_main_~str2~6 ULTIMATE.start_main_~j~6 .cse0) (+ ULTIMATE.start_main_~MAX~6 (- 1))))) [2019-01-31 14:59:11,534 WARN L399 uantifierElimination]: ElimStorePlain result: ∀ []. (= (+ ULTIMATE.start_main_~j~6 1) ULTIMATE.start_main_~MAX~6) [2019-01-31 14:59:11,796 INFO L273 TraceCheckUtils]: 33: Hoare triple {6306#false} assume !false; {6306#false} is VALID [2019-01-31 14:59:11,797 INFO L273 TraceCheckUtils]: 32: Hoare triple {6338#(= (select ULTIMATE.start_main_~str1~6 0) (select ULTIMATE.start_main_~str2~6 (+ ULTIMATE.start_main_~MAX~6 (- 1))))} assume !(main_~i~6 >= 0);main_~j~6 := main_~MAX~6 - 1;main_~i~6 := 0;assume !!(main_~i~6 < main_~MAX~6);__VERIFIER_assert_#in~cond := (if main_~str1~6[main_~i~6] == main_~str2~6[main_~j~6] then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond;assume __VERIFIER_assert_~cond == 0;assume !false; {6306#false} is VALID [2019-01-31 14:59:11,798 INFO L273 TraceCheckUtils]: 31: Hoare triple {6337#(= (+ ULTIMATE.start_main_~j~6 1) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {6338#(= (select ULTIMATE.start_main_~str1~6 0) (select ULTIMATE.start_main_~str2~6 (+ ULTIMATE.start_main_~MAX~6 (- 1))))} is VALID [2019-01-31 14:59:11,799 INFO L273 TraceCheckUtils]: 30: Hoare triple {6336#(= (+ ULTIMATE.start_main_~j~6 2) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {6337#(= (+ ULTIMATE.start_main_~j~6 1) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:59:11,800 INFO L273 TraceCheckUtils]: 29: Hoare triple {6335#(= (+ ULTIMATE.start_main_~j~6 3) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {6336#(= (+ ULTIMATE.start_main_~j~6 2) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:59:11,800 INFO L273 TraceCheckUtils]: 28: Hoare triple {6334#(= (+ ULTIMATE.start_main_~j~6 4) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {6335#(= (+ ULTIMATE.start_main_~j~6 3) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:59:11,801 INFO L273 TraceCheckUtils]: 27: Hoare triple {6333#(= (+ ULTIMATE.start_main_~j~6 5) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {6334#(= (+ ULTIMATE.start_main_~j~6 4) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:59:11,802 INFO L273 TraceCheckUtils]: 26: Hoare triple {6332#(= (+ ULTIMATE.start_main_~j~6 6) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {6333#(= (+ ULTIMATE.start_main_~j~6 5) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:59:11,803 INFO L273 TraceCheckUtils]: 25: Hoare triple {6331#(= (+ ULTIMATE.start_main_~j~6 7) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {6332#(= (+ ULTIMATE.start_main_~j~6 6) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:59:11,804 INFO L273 TraceCheckUtils]: 24: Hoare triple {6330#(= (+ ULTIMATE.start_main_~j~6 8) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {6331#(= (+ ULTIMATE.start_main_~j~6 7) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:59:11,805 INFO L273 TraceCheckUtils]: 23: Hoare triple {6329#(= (+ ULTIMATE.start_main_~j~6 9) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {6330#(= (+ ULTIMATE.start_main_~j~6 8) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:59:11,806 INFO L273 TraceCheckUtils]: 22: Hoare triple {6328#(= (+ ULTIMATE.start_main_~j~6 10) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {6329#(= (+ ULTIMATE.start_main_~j~6 9) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:59:11,807 INFO L273 TraceCheckUtils]: 21: Hoare triple {6327#(= (+ ULTIMATE.start_main_~j~6 11) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {6328#(= (+ ULTIMATE.start_main_~j~6 10) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:59:11,808 INFO L273 TraceCheckUtils]: 20: Hoare triple {6326#(= (+ ULTIMATE.start_main_~j~6 12) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {6327#(= (+ ULTIMATE.start_main_~j~6 11) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:59:11,809 INFO L273 TraceCheckUtils]: 19: Hoare triple {6325#(= (+ ULTIMATE.start_main_~j~6 13) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {6326#(= (+ ULTIMATE.start_main_~j~6 12) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:59:11,810 INFO L273 TraceCheckUtils]: 18: Hoare triple {6324#(= (+ ULTIMATE.start_main_~j~6 14) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {6325#(= (+ ULTIMATE.start_main_~j~6 13) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:59:11,811 INFO L273 TraceCheckUtils]: 17: Hoare triple {6323#(= (+ ULTIMATE.start_main_~j~6 15) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {6324#(= (+ ULTIMATE.start_main_~j~6 14) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:59:11,812 INFO L273 TraceCheckUtils]: 16: Hoare triple {6322#(or (<= (+ ULTIMATE.start_main_~i~6 1) ULTIMATE.start_main_~MAX~6) (= 15 ULTIMATE.start_main_~MAX~6))} assume !(main_~i~6 < main_~MAX~6);main_~str1~6 := main_~str1~6[main_~MAX~6 - 1 := 0];main_~j~6 := 0;main_~i~6 := main_~MAX~6 - 1; {6323#(= (+ ULTIMATE.start_main_~j~6 15) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:59:11,813 INFO L273 TraceCheckUtils]: 15: Hoare triple {6384#(and (<= ULTIMATE.start_main_~i~6 14) (<= 14 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {6322#(or (<= (+ ULTIMATE.start_main_~i~6 1) ULTIMATE.start_main_~MAX~6) (= 15 ULTIMATE.start_main_~MAX~6))} is VALID [2019-01-31 14:59:11,814 INFO L273 TraceCheckUtils]: 14: Hoare triple {6320#(and (<= ULTIMATE.start_main_~i~6 13) (<= 13 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {6384#(and (<= ULTIMATE.start_main_~i~6 14) (<= 14 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:59:11,815 INFO L273 TraceCheckUtils]: 13: Hoare triple {6319#(and (<= ULTIMATE.start_main_~i~6 12) (<= 12 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {6320#(and (<= ULTIMATE.start_main_~i~6 13) (<= 13 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:59:11,816 INFO L273 TraceCheckUtils]: 12: Hoare triple {6318#(and (<= 11 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 11))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {6319#(and (<= ULTIMATE.start_main_~i~6 12) (<= 12 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:59:11,817 INFO L273 TraceCheckUtils]: 11: Hoare triple {6317#(and (<= ULTIMATE.start_main_~i~6 10) (<= 10 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {6318#(and (<= 11 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 11))} is VALID [2019-01-31 14:59:11,818 INFO L273 TraceCheckUtils]: 10: Hoare triple {6316#(and (<= ULTIMATE.start_main_~i~6 9) (<= 9 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {6317#(and (<= ULTIMATE.start_main_~i~6 10) (<= 10 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:59:11,819 INFO L273 TraceCheckUtils]: 9: Hoare triple {6315#(and (<= ULTIMATE.start_main_~i~6 8) (<= 8 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {6316#(and (<= ULTIMATE.start_main_~i~6 9) (<= 9 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:59:11,820 INFO L273 TraceCheckUtils]: 8: Hoare triple {6314#(and (<= 7 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 7))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {6315#(and (<= ULTIMATE.start_main_~i~6 8) (<= 8 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:59:11,821 INFO L273 TraceCheckUtils]: 7: Hoare triple {6313#(and (<= ULTIMATE.start_main_~i~6 6) (<= 6 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {6314#(and (<= 7 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 7))} is VALID [2019-01-31 14:59:11,822 INFO L273 TraceCheckUtils]: 6: Hoare triple {6312#(and (<= 5 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 5))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {6313#(and (<= ULTIMATE.start_main_~i~6 6) (<= 6 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:59:11,823 INFO L273 TraceCheckUtils]: 5: Hoare triple {6311#(and (<= ULTIMATE.start_main_~i~6 4) (<= 4 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {6312#(and (<= 5 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 5))} is VALID [2019-01-31 14:59:11,824 INFO L273 TraceCheckUtils]: 4: Hoare triple {6310#(and (<= 3 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 3))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {6311#(and (<= ULTIMATE.start_main_~i~6 4) (<= 4 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:59:11,825 INFO L273 TraceCheckUtils]: 3: Hoare triple {6309#(and (<= ULTIMATE.start_main_~i~6 2) (<= 2 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {6310#(and (<= 3 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 3))} is VALID [2019-01-31 14:59:11,825 INFO L273 TraceCheckUtils]: 2: Hoare triple {6308#(and (<= ULTIMATE.start_main_~i~6 1) (<= 1 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {6309#(and (<= ULTIMATE.start_main_~i~6 2) (<= 2 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:59:11,826 INFO L273 TraceCheckUtils]: 1: Hoare triple {6307#(and (<= ULTIMATE.start_main_~i~6 0) (<= 0 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {6308#(and (<= ULTIMATE.start_main_~i~6 1) (<= 1 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:59:11,827 INFO L273 TraceCheckUtils]: 0: Hoare triple {6305#true} havoc main_#res;havoc main_#t~nondet0, main_#t~nondet2, main_#t~post1, main_#t~post4, main_#t~post3, main_#t~post6, main_#t~post5, main_~MAX~6, main_~str1~6, main_~str2~6, main_~cont~6, main_~i~6, main_~j~6;main_~MAX~6 := (if main_#t~nondet0 % 4294967296 % 4294967296 <= 2147483647 then main_#t~nondet0 % 4294967296 % 4294967296 else main_#t~nondet0 % 4294967296 % 4294967296 - 4294967296);havoc main_#t~nondet0;havoc main_~str1~6;havoc main_~str2~6;havoc main_~cont~6;havoc main_~i~6;havoc main_~j~6;main_~cont~6 := 0;main_~i~6 := 0; {6307#(and (<= ULTIMATE.start_main_~i~6 0) (<= 0 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:59:11,830 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 0 proven. 240 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-31 14:59:11,849 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-01-31 14:59:11,849 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 33, 33] total 51 [2019-01-31 14:59:11,849 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-01-31 14:59:11,850 INFO L78 Accepts]: Start accepts. Automaton has 52 states. Word has length 34 [2019-01-31 14:59:11,850 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-01-31 14:59:11,850 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 52 states. [2019-01-31 14:59:11,901 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 53 edges. 53 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-01-31 14:59:11,902 INFO L459 AbstractCegarLoop]: Interpolant automaton has 52 states [2019-01-31 14:59:11,902 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2019-01-31 14:59:11,903 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=151, Invalid=2501, Unknown=0, NotChecked=0, Total=2652 [2019-01-31 14:59:11,903 INFO L87 Difference]: Start difference. First operand 35 states and 36 transitions. Second operand 52 states. [2019-01-31 14:59:17,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 14:59:17,483 INFO L93 Difference]: Finished difference Result 54 states and 56 transitions. [2019-01-31 14:59:17,483 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2019-01-31 14:59:17,483 INFO L78 Accepts]: Start accepts. Automaton has 52 states. Word has length 34 [2019-01-31 14:59:17,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-31 14:59:17,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2019-01-31 14:59:17,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 42 transitions. [2019-01-31 14:59:17,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2019-01-31 14:59:17,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 42 transitions. [2019-01-31 14:59:17,485 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 37 states and 42 transitions. [2019-01-31 14:59:17,530 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 42 edges. 42 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-01-31 14:59:17,531 INFO L225 Difference]: With dead ends: 54 [2019-01-31 14:59:17,531 INFO L226 Difference]: Without dead ends: 36 [2019-01-31 14:59:17,534 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 39 SyntacticMatches, 10 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 721 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=320, Invalid=4510, Unknown=0, NotChecked=0, Total=4830 [2019-01-31 14:59:17,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2019-01-31 14:59:17,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2019-01-31 14:59:17,968 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-01-31 14:59:17,968 INFO L82 GeneralOperation]: Start isEquivalent. First operand 36 states. Second operand 36 states. [2019-01-31 14:59:17,968 INFO L74 IsIncluded]: Start isIncluded. First operand 36 states. Second operand 36 states. [2019-01-31 14:59:17,969 INFO L87 Difference]: Start difference. First operand 36 states. Second operand 36 states. [2019-01-31 14:59:17,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 14:59:17,969 INFO L93 Difference]: Finished difference Result 36 states and 37 transitions. [2019-01-31 14:59:17,970 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 37 transitions. [2019-01-31 14:59:17,970 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-31 14:59:17,970 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-01-31 14:59:17,970 INFO L74 IsIncluded]: Start isIncluded. First operand 36 states. Second operand 36 states. [2019-01-31 14:59:17,970 INFO L87 Difference]: Start difference. First operand 36 states. Second operand 36 states. [2019-01-31 14:59:17,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 14:59:17,971 INFO L93 Difference]: Finished difference Result 36 states and 37 transitions. [2019-01-31 14:59:17,971 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 37 transitions. [2019-01-31 14:59:17,971 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-31 14:59:17,971 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-01-31 14:59:17,971 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-01-31 14:59:17,971 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-01-31 14:59:17,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2019-01-31 14:59:17,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 37 transitions. [2019-01-31 14:59:17,972 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 37 transitions. Word has length 34 [2019-01-31 14:59:17,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-31 14:59:17,972 INFO L480 AbstractCegarLoop]: Abstraction has 36 states and 37 transitions. [2019-01-31 14:59:17,972 INFO L481 AbstractCegarLoop]: Interpolant automaton has 52 states. [2019-01-31 14:59:17,972 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 37 transitions. [2019-01-31 14:59:17,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2019-01-31 14:59:17,973 INFO L394 BasicCegarLoop]: Found error trace [2019-01-31 14:59:17,973 INFO L402 BasicCegarLoop]: trace histogram [16, 15, 1, 1, 1, 1] [2019-01-31 14:59:17,973 INFO L423 AbstractCegarLoop]: === Iteration 25 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2019-01-31 14:59:17,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-31 14:59:17,973 INFO L82 PathProgramCache]: Analyzing trace with hash 1394260940, now seen corresponding path program 23 times [2019-01-31 14:59:17,973 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-01-31 14:59:17,974 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-31 14:59:17,974 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-31 14:59:17,974 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-31 14:59:17,974 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-01-31 14:59:17,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-31 14:59:18,274 INFO L273 TraceCheckUtils]: 0: Hoare triple {6840#true} havoc main_#res;havoc main_#t~nondet0, main_#t~nondet2, main_#t~post1, main_#t~post4, main_#t~post3, main_#t~post6, main_#t~post5, main_~MAX~6, main_~str1~6, main_~str2~6, main_~cont~6, main_~i~6, main_~j~6;main_~MAX~6 := (if main_#t~nondet0 % 4294967296 % 4294967296 <= 2147483647 then main_#t~nondet0 % 4294967296 % 4294967296 else main_#t~nondet0 % 4294967296 % 4294967296 - 4294967296);havoc main_#t~nondet0;havoc main_~str1~6;havoc main_~str2~6;havoc main_~cont~6;havoc main_~i~6;havoc main_~j~6;main_~cont~6 := 0;main_~i~6 := 0; {6842#(<= 0 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:59:18,275 INFO L273 TraceCheckUtils]: 1: Hoare triple {6842#(<= 0 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {6843#(<= 1 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:59:18,276 INFO L273 TraceCheckUtils]: 2: Hoare triple {6843#(<= 1 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {6844#(<= 2 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:59:18,277 INFO L273 TraceCheckUtils]: 3: Hoare triple {6844#(<= 2 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {6845#(<= 3 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:59:18,277 INFO L273 TraceCheckUtils]: 4: Hoare triple {6845#(<= 3 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {6846#(<= 4 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:59:18,278 INFO L273 TraceCheckUtils]: 5: Hoare triple {6846#(<= 4 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {6847#(<= 5 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:59:18,279 INFO L273 TraceCheckUtils]: 6: Hoare triple {6847#(<= 5 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {6848#(<= 6 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:59:18,280 INFO L273 TraceCheckUtils]: 7: Hoare triple {6848#(<= 6 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {6849#(<= 7 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:59:18,281 INFO L273 TraceCheckUtils]: 8: Hoare triple {6849#(<= 7 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {6850#(<= 8 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:59:18,282 INFO L273 TraceCheckUtils]: 9: Hoare triple {6850#(<= 8 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {6851#(<= 9 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:59:18,283 INFO L273 TraceCheckUtils]: 10: Hoare triple {6851#(<= 9 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {6852#(<= 10 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:59:18,283 INFO L273 TraceCheckUtils]: 11: Hoare triple {6852#(<= 10 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {6853#(<= 11 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:59:18,284 INFO L273 TraceCheckUtils]: 12: Hoare triple {6853#(<= 11 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {6854#(<= 12 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:59:18,285 INFO L273 TraceCheckUtils]: 13: Hoare triple {6854#(<= 12 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {6855#(<= 13 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:59:18,286 INFO L273 TraceCheckUtils]: 14: Hoare triple {6855#(<= 13 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {6856#(<= 14 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:59:18,287 INFO L273 TraceCheckUtils]: 15: Hoare triple {6856#(<= 14 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {6857#(<= 15 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:59:18,288 INFO L273 TraceCheckUtils]: 16: Hoare triple {6857#(<= 15 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {6858#(<= 16 ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:59:18,289 INFO L273 TraceCheckUtils]: 17: Hoare triple {6858#(<= 16 ULTIMATE.start_main_~MAX~6)} assume !(main_~i~6 < main_~MAX~6);main_~str1~6 := main_~str1~6[main_~MAX~6 - 1 := 0];main_~j~6 := 0;main_~i~6 := main_~MAX~6 - 1; {6857#(<= 15 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:59:18,290 INFO L273 TraceCheckUtils]: 18: Hoare triple {6857#(<= 15 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {6856#(<= 14 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:59:18,290 INFO L273 TraceCheckUtils]: 19: Hoare triple {6856#(<= 14 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {6855#(<= 13 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:59:18,291 INFO L273 TraceCheckUtils]: 20: Hoare triple {6855#(<= 13 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {6854#(<= 12 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:59:18,292 INFO L273 TraceCheckUtils]: 21: Hoare triple {6854#(<= 12 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {6853#(<= 11 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:59:18,293 INFO L273 TraceCheckUtils]: 22: Hoare triple {6853#(<= 11 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {6852#(<= 10 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:59:18,294 INFO L273 TraceCheckUtils]: 23: Hoare triple {6852#(<= 10 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {6851#(<= 9 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:59:18,295 INFO L273 TraceCheckUtils]: 24: Hoare triple {6851#(<= 9 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {6850#(<= 8 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:59:18,296 INFO L273 TraceCheckUtils]: 25: Hoare triple {6850#(<= 8 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {6849#(<= 7 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:59:18,297 INFO L273 TraceCheckUtils]: 26: Hoare triple {6849#(<= 7 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {6848#(<= 6 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:59:18,297 INFO L273 TraceCheckUtils]: 27: Hoare triple {6848#(<= 6 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {6847#(<= 5 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:59:18,298 INFO L273 TraceCheckUtils]: 28: Hoare triple {6847#(<= 5 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {6846#(<= 4 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:59:18,299 INFO L273 TraceCheckUtils]: 29: Hoare triple {6846#(<= 4 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {6845#(<= 3 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:59:18,300 INFO L273 TraceCheckUtils]: 30: Hoare triple {6845#(<= 3 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {6844#(<= 2 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:59:18,301 INFO L273 TraceCheckUtils]: 31: Hoare triple {6844#(<= 2 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {6843#(<= 1 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:59:18,302 INFO L273 TraceCheckUtils]: 32: Hoare triple {6843#(<= 1 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {6842#(<= 0 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:59:18,302 INFO L273 TraceCheckUtils]: 33: Hoare triple {6842#(<= 0 ULTIMATE.start_main_~i~6)} assume !(main_~i~6 >= 0);main_~j~6 := main_~MAX~6 - 1;main_~i~6 := 0;assume !!(main_~i~6 < main_~MAX~6);__VERIFIER_assert_#in~cond := (if main_~str1~6[main_~i~6] == main_~str2~6[main_~j~6] then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond;assume __VERIFIER_assert_~cond == 0;assume !false; {6841#false} is VALID [2019-01-31 14:59:18,302 INFO L273 TraceCheckUtils]: 34: Hoare triple {6841#false} assume !false; {6841#false} is VALID [2019-01-31 14:59:18,305 INFO L134 CoverageAnalysis]: Checked inductivity of 256 backedges. 120 proven. 136 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-31 14:59:18,305 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-31 14:59:18,305 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-01-31 14:59:18,305 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-01-31 14:59:18,306 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-01-31 14:59:18,306 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-31 14:59:18,306 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 24 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 24 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-01-31 14:59:18,322 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2019-01-31 14:59:18,322 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST2 (IT: FPandBP) [2019-01-31 14:59:18,371 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 9 check-sat command(s) [2019-01-31 14:59:18,372 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-01-31 14:59:18,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-31 14:59:18,392 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-31 14:59:18,561 INFO L273 TraceCheckUtils]: 0: Hoare triple {6840#true} havoc main_#res;havoc main_#t~nondet0, main_#t~nondet2, main_#t~post1, main_#t~post4, main_#t~post3, main_#t~post6, main_#t~post5, main_~MAX~6, main_~str1~6, main_~str2~6, main_~cont~6, main_~i~6, main_~j~6;main_~MAX~6 := (if main_#t~nondet0 % 4294967296 % 4294967296 <= 2147483647 then main_#t~nondet0 % 4294967296 % 4294967296 else main_#t~nondet0 % 4294967296 % 4294967296 - 4294967296);havoc main_#t~nondet0;havoc main_~str1~6;havoc main_~str2~6;havoc main_~cont~6;havoc main_~i~6;havoc main_~j~6;main_~cont~6 := 0;main_~i~6 := 0; {6842#(<= 0 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:59:18,562 INFO L273 TraceCheckUtils]: 1: Hoare triple {6842#(<= 0 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {6843#(<= 1 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:59:18,563 INFO L273 TraceCheckUtils]: 2: Hoare triple {6843#(<= 1 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {6844#(<= 2 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:59:18,564 INFO L273 TraceCheckUtils]: 3: Hoare triple {6844#(<= 2 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {6845#(<= 3 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:59:18,565 INFO L273 TraceCheckUtils]: 4: Hoare triple {6845#(<= 3 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {6846#(<= 4 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:59:18,566 INFO L273 TraceCheckUtils]: 5: Hoare triple {6846#(<= 4 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {6847#(<= 5 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:59:18,567 INFO L273 TraceCheckUtils]: 6: Hoare triple {6847#(<= 5 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {6848#(<= 6 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:59:18,568 INFO L273 TraceCheckUtils]: 7: Hoare triple {6848#(<= 6 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {6849#(<= 7 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:59:18,569 INFO L273 TraceCheckUtils]: 8: Hoare triple {6849#(<= 7 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {6850#(<= 8 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:59:18,569 INFO L273 TraceCheckUtils]: 9: Hoare triple {6850#(<= 8 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {6851#(<= 9 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:59:18,570 INFO L273 TraceCheckUtils]: 10: Hoare triple {6851#(<= 9 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {6852#(<= 10 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:59:18,571 INFO L273 TraceCheckUtils]: 11: Hoare triple {6852#(<= 10 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {6853#(<= 11 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:59:18,572 INFO L273 TraceCheckUtils]: 12: Hoare triple {6853#(<= 11 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {6854#(<= 12 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:59:18,573 INFO L273 TraceCheckUtils]: 13: Hoare triple {6854#(<= 12 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {6855#(<= 13 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:59:18,574 INFO L273 TraceCheckUtils]: 14: Hoare triple {6855#(<= 13 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {6856#(<= 14 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:59:18,575 INFO L273 TraceCheckUtils]: 15: Hoare triple {6856#(<= 14 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {6857#(<= 15 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:59:18,576 INFO L273 TraceCheckUtils]: 16: Hoare triple {6857#(<= 15 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {6858#(<= 16 ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:59:18,577 INFO L273 TraceCheckUtils]: 17: Hoare triple {6858#(<= 16 ULTIMATE.start_main_~MAX~6)} assume !(main_~i~6 < main_~MAX~6);main_~str1~6 := main_~str1~6[main_~MAX~6 - 1 := 0];main_~j~6 := 0;main_~i~6 := main_~MAX~6 - 1; {6857#(<= 15 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:59:18,577 INFO L273 TraceCheckUtils]: 18: Hoare triple {6857#(<= 15 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {6856#(<= 14 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:59:18,578 INFO L273 TraceCheckUtils]: 19: Hoare triple {6856#(<= 14 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {6855#(<= 13 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:59:18,579 INFO L273 TraceCheckUtils]: 20: Hoare triple {6855#(<= 13 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {6854#(<= 12 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:59:18,580 INFO L273 TraceCheckUtils]: 21: Hoare triple {6854#(<= 12 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {6853#(<= 11 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:59:18,581 INFO L273 TraceCheckUtils]: 22: Hoare triple {6853#(<= 11 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {6852#(<= 10 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:59:18,582 INFO L273 TraceCheckUtils]: 23: Hoare triple {6852#(<= 10 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {6851#(<= 9 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:59:18,583 INFO L273 TraceCheckUtils]: 24: Hoare triple {6851#(<= 9 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {6850#(<= 8 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:59:18,584 INFO L273 TraceCheckUtils]: 25: Hoare triple {6850#(<= 8 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {6849#(<= 7 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:59:18,584 INFO L273 TraceCheckUtils]: 26: Hoare triple {6849#(<= 7 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {6848#(<= 6 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:59:18,585 INFO L273 TraceCheckUtils]: 27: Hoare triple {6848#(<= 6 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {6847#(<= 5 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:59:18,586 INFO L273 TraceCheckUtils]: 28: Hoare triple {6847#(<= 5 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {6846#(<= 4 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:59:18,587 INFO L273 TraceCheckUtils]: 29: Hoare triple {6846#(<= 4 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {6845#(<= 3 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:59:18,588 INFO L273 TraceCheckUtils]: 30: Hoare triple {6845#(<= 3 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {6844#(<= 2 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:59:18,589 INFO L273 TraceCheckUtils]: 31: Hoare triple {6844#(<= 2 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {6843#(<= 1 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:59:18,590 INFO L273 TraceCheckUtils]: 32: Hoare triple {6843#(<= 1 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {6842#(<= 0 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:59:18,590 INFO L273 TraceCheckUtils]: 33: Hoare triple {6842#(<= 0 ULTIMATE.start_main_~i~6)} assume !(main_~i~6 >= 0);main_~j~6 := main_~MAX~6 - 1;main_~i~6 := 0;assume !!(main_~i~6 < main_~MAX~6);__VERIFIER_assert_#in~cond := (if main_~str1~6[main_~i~6] == main_~str2~6[main_~j~6] then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond;assume __VERIFIER_assert_~cond == 0;assume !false; {6841#false} is VALID [2019-01-31 14:59:18,590 INFO L273 TraceCheckUtils]: 34: Hoare triple {6841#false} assume !false; {6841#false} is VALID [2019-01-31 14:59:18,592 INFO L134 CoverageAnalysis]: Checked inductivity of 256 backedges. 120 proven. 136 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-31 14:59:18,592 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2019-01-31 14:59:19,003 INFO L273 TraceCheckUtils]: 34: Hoare triple {6841#false} assume !false; {6841#false} is VALID [2019-01-31 14:59:19,005 INFO L273 TraceCheckUtils]: 33: Hoare triple {6842#(<= 0 ULTIMATE.start_main_~i~6)} assume !(main_~i~6 >= 0);main_~j~6 := main_~MAX~6 - 1;main_~i~6 := 0;assume !!(main_~i~6 < main_~MAX~6);__VERIFIER_assert_#in~cond := (if main_~str1~6[main_~i~6] == main_~str2~6[main_~j~6] then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond;assume __VERIFIER_assert_~cond == 0;assume !false; {6841#false} is VALID [2019-01-31 14:59:19,005 INFO L273 TraceCheckUtils]: 32: Hoare triple {6843#(<= 1 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {6842#(<= 0 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:59:19,006 INFO L273 TraceCheckUtils]: 31: Hoare triple {6844#(<= 2 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {6843#(<= 1 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:59:19,006 INFO L273 TraceCheckUtils]: 30: Hoare triple {6845#(<= 3 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {6844#(<= 2 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:59:19,007 INFO L273 TraceCheckUtils]: 29: Hoare triple {6846#(<= 4 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {6845#(<= 3 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:59:19,007 INFO L273 TraceCheckUtils]: 28: Hoare triple {6847#(<= 5 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {6846#(<= 4 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:59:19,008 INFO L273 TraceCheckUtils]: 27: Hoare triple {6848#(<= 6 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {6847#(<= 5 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:59:19,009 INFO L273 TraceCheckUtils]: 26: Hoare triple {6849#(<= 7 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {6848#(<= 6 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:59:19,010 INFO L273 TraceCheckUtils]: 25: Hoare triple {6850#(<= 8 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {6849#(<= 7 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:59:19,011 INFO L273 TraceCheckUtils]: 24: Hoare triple {6851#(<= 9 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {6850#(<= 8 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:59:19,012 INFO L273 TraceCheckUtils]: 23: Hoare triple {6852#(<= 10 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {6851#(<= 9 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:59:19,013 INFO L273 TraceCheckUtils]: 22: Hoare triple {6853#(<= 11 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {6852#(<= 10 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:59:19,013 INFO L273 TraceCheckUtils]: 21: Hoare triple {6854#(<= 12 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {6853#(<= 11 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:59:19,014 INFO L273 TraceCheckUtils]: 20: Hoare triple {6855#(<= 13 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {6854#(<= 12 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:59:19,015 INFO L273 TraceCheckUtils]: 19: Hoare triple {6856#(<= 14 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {6855#(<= 13 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:59:19,016 INFO L273 TraceCheckUtils]: 18: Hoare triple {6857#(<= 15 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {6856#(<= 14 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:59:19,017 INFO L273 TraceCheckUtils]: 17: Hoare triple {6858#(<= 16 ULTIMATE.start_main_~MAX~6)} assume !(main_~i~6 < main_~MAX~6);main_~str1~6 := main_~str1~6[main_~MAX~6 - 1 := 0];main_~j~6 := 0;main_~i~6 := main_~MAX~6 - 1; {6857#(<= 15 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:59:19,018 INFO L273 TraceCheckUtils]: 16: Hoare triple {6857#(<= 15 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {6858#(<= 16 ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:59:19,019 INFO L273 TraceCheckUtils]: 15: Hoare triple {6856#(<= 14 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {6857#(<= 15 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:59:19,020 INFO L273 TraceCheckUtils]: 14: Hoare triple {6855#(<= 13 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {6856#(<= 14 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:59:19,020 INFO L273 TraceCheckUtils]: 13: Hoare triple {6854#(<= 12 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {6855#(<= 13 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:59:19,021 INFO L273 TraceCheckUtils]: 12: Hoare triple {6853#(<= 11 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {6854#(<= 12 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:59:19,022 INFO L273 TraceCheckUtils]: 11: Hoare triple {6852#(<= 10 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {6853#(<= 11 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:59:19,023 INFO L273 TraceCheckUtils]: 10: Hoare triple {6851#(<= 9 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {6852#(<= 10 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:59:19,024 INFO L273 TraceCheckUtils]: 9: Hoare triple {6850#(<= 8 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {6851#(<= 9 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:59:19,025 INFO L273 TraceCheckUtils]: 8: Hoare triple {6849#(<= 7 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {6850#(<= 8 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:59:19,026 INFO L273 TraceCheckUtils]: 7: Hoare triple {6848#(<= 6 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {6849#(<= 7 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:59:19,026 INFO L273 TraceCheckUtils]: 6: Hoare triple {6847#(<= 5 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {6848#(<= 6 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:59:19,027 INFO L273 TraceCheckUtils]: 5: Hoare triple {6846#(<= 4 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {6847#(<= 5 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:59:19,029 INFO L273 TraceCheckUtils]: 4: Hoare triple {6845#(<= 3 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {6846#(<= 4 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:59:19,030 INFO L273 TraceCheckUtils]: 3: Hoare triple {6844#(<= 2 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {6845#(<= 3 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:59:19,031 INFO L273 TraceCheckUtils]: 2: Hoare triple {6843#(<= 1 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {6844#(<= 2 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:59:19,032 INFO L273 TraceCheckUtils]: 1: Hoare triple {6842#(<= 0 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {6843#(<= 1 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:59:19,032 INFO L273 TraceCheckUtils]: 0: Hoare triple {6840#true} havoc main_#res;havoc main_#t~nondet0, main_#t~nondet2, main_#t~post1, main_#t~post4, main_#t~post3, main_#t~post6, main_#t~post5, main_~MAX~6, main_~str1~6, main_~str2~6, main_~cont~6, main_~i~6, main_~j~6;main_~MAX~6 := (if main_#t~nondet0 % 4294967296 % 4294967296 <= 2147483647 then main_#t~nondet0 % 4294967296 % 4294967296 else main_#t~nondet0 % 4294967296 % 4294967296 - 4294967296);havoc main_#t~nondet0;havoc main_~str1~6;havoc main_~str2~6;havoc main_~cont~6;havoc main_~i~6;havoc main_~j~6;main_~cont~6 := 0;main_~i~6 := 0; {6842#(<= 0 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:59:19,034 INFO L134 CoverageAnalysis]: Checked inductivity of 256 backedges. 120 proven. 136 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-31 14:59:19,054 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-01-31 14:59:19,054 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18, 18] total 18 [2019-01-31 14:59:19,054 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-01-31 14:59:19,055 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 35 [2019-01-31 14:59:19,055 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-01-31 14:59:19,055 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 19 states. [2019-01-31 14:59:19,093 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 35 edges. 35 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-01-31 14:59:19,093 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2019-01-31 14:59:19,093 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2019-01-31 14:59:19,093 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=155, Invalid=187, Unknown=0, NotChecked=0, Total=342 [2019-01-31 14:59:19,094 INFO L87 Difference]: Start difference. First operand 36 states and 37 transitions. Second operand 19 states. [2019-01-31 14:59:19,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 14:59:19,961 INFO L93 Difference]: Finished difference Result 39 states and 40 transitions. [2019-01-31 14:59:19,962 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2019-01-31 14:59:19,962 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 35 [2019-01-31 14:59:19,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-31 14:59:19,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2019-01-31 14:59:19,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 40 transitions. [2019-01-31 14:59:19,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2019-01-31 14:59:19,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 40 transitions. [2019-01-31 14:59:19,963 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 35 states and 40 transitions. [2019-01-31 14:59:19,997 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 40 edges. 40 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-01-31 14:59:19,998 INFO L225 Difference]: With dead ends: 39 [2019-01-31 14:59:19,998 INFO L226 Difference]: Without dead ends: 37 [2019-01-31 14:59:19,999 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 53 SyntacticMatches, 32 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 480 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=459, Invalid=731, Unknown=0, NotChecked=0, Total=1190 [2019-01-31 14:59:19,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2019-01-31 14:59:20,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2019-01-31 14:59:20,495 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-01-31 14:59:20,495 INFO L82 GeneralOperation]: Start isEquivalent. First operand 37 states. Second operand 37 states. [2019-01-31 14:59:20,495 INFO L74 IsIncluded]: Start isIncluded. First operand 37 states. Second operand 37 states. [2019-01-31 14:59:20,496 INFO L87 Difference]: Start difference. First operand 37 states. Second operand 37 states. [2019-01-31 14:59:20,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 14:59:20,496 INFO L93 Difference]: Finished difference Result 37 states and 38 transitions. [2019-01-31 14:59:20,497 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 38 transitions. [2019-01-31 14:59:20,497 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-31 14:59:20,497 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-01-31 14:59:20,497 INFO L74 IsIncluded]: Start isIncluded. First operand 37 states. Second operand 37 states. [2019-01-31 14:59:20,497 INFO L87 Difference]: Start difference. First operand 37 states. Second operand 37 states. [2019-01-31 14:59:20,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 14:59:20,498 INFO L93 Difference]: Finished difference Result 37 states and 38 transitions. [2019-01-31 14:59:20,498 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 38 transitions. [2019-01-31 14:59:20,498 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-31 14:59:20,498 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-01-31 14:59:20,498 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-01-31 14:59:20,498 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-01-31 14:59:20,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2019-01-31 14:59:20,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 38 transitions. [2019-01-31 14:59:20,499 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 38 transitions. Word has length 35 [2019-01-31 14:59:20,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-31 14:59:20,499 INFO L480 AbstractCegarLoop]: Abstraction has 37 states and 38 transitions. [2019-01-31 14:59:20,499 INFO L481 AbstractCegarLoop]: Interpolant automaton has 19 states. [2019-01-31 14:59:20,499 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 38 transitions. [2019-01-31 14:59:20,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2019-01-31 14:59:20,499 INFO L394 BasicCegarLoop]: Found error trace [2019-01-31 14:59:20,500 INFO L402 BasicCegarLoop]: trace histogram [16, 16, 1, 1, 1, 1] [2019-01-31 14:59:20,500 INFO L423 AbstractCegarLoop]: === Iteration 26 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2019-01-31 14:59:20,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-31 14:59:20,500 INFO L82 PathProgramCache]: Analyzing trace with hash 272417994, now seen corresponding path program 24 times [2019-01-31 14:59:20,500 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-01-31 14:59:20,500 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-31 14:59:20,501 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-01-31 14:59:20,501 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-31 14:59:20,501 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-01-31 14:59:20,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-31 14:59:21,732 INFO L273 TraceCheckUtils]: 0: Hoare triple {7318#true} havoc main_#res;havoc main_#t~nondet0, main_#t~nondet2, main_#t~post1, main_#t~post4, main_#t~post3, main_#t~post6, main_#t~post5, main_~MAX~6, main_~str1~6, main_~str2~6, main_~cont~6, main_~i~6, main_~j~6;main_~MAX~6 := (if main_#t~nondet0 % 4294967296 % 4294967296 <= 2147483647 then main_#t~nondet0 % 4294967296 % 4294967296 else main_#t~nondet0 % 4294967296 % 4294967296 - 4294967296);havoc main_#t~nondet0;havoc main_~str1~6;havoc main_~str2~6;havoc main_~cont~6;havoc main_~i~6;havoc main_~j~6;main_~cont~6 := 0;main_~i~6 := 0; {7320#(and (<= ULTIMATE.start_main_~i~6 0) (<= 0 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:59:21,733 INFO L273 TraceCheckUtils]: 1: Hoare triple {7320#(and (<= ULTIMATE.start_main_~i~6 0) (<= 0 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {7321#(and (<= ULTIMATE.start_main_~i~6 1) (<= 1 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:59:21,734 INFO L273 TraceCheckUtils]: 2: Hoare triple {7321#(and (<= ULTIMATE.start_main_~i~6 1) (<= 1 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {7322#(and (<= ULTIMATE.start_main_~i~6 2) (<= 2 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:59:21,735 INFO L273 TraceCheckUtils]: 3: Hoare triple {7322#(and (<= ULTIMATE.start_main_~i~6 2) (<= 2 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {7323#(and (<= 3 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 3))} is VALID [2019-01-31 14:59:21,736 INFO L273 TraceCheckUtils]: 4: Hoare triple {7323#(and (<= 3 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 3))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {7324#(and (<= ULTIMATE.start_main_~i~6 4) (<= 4 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:59:21,737 INFO L273 TraceCheckUtils]: 5: Hoare triple {7324#(and (<= ULTIMATE.start_main_~i~6 4) (<= 4 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {7325#(and (<= 5 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 5))} is VALID [2019-01-31 14:59:21,738 INFO L273 TraceCheckUtils]: 6: Hoare triple {7325#(and (<= 5 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 5))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {7326#(and (<= ULTIMATE.start_main_~i~6 6) (<= 6 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:59:21,739 INFO L273 TraceCheckUtils]: 7: Hoare triple {7326#(and (<= ULTIMATE.start_main_~i~6 6) (<= 6 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {7327#(and (<= 7 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 7))} is VALID [2019-01-31 14:59:21,740 INFO L273 TraceCheckUtils]: 8: Hoare triple {7327#(and (<= 7 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 7))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {7328#(and (<= ULTIMATE.start_main_~i~6 8) (<= 8 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:59:21,741 INFO L273 TraceCheckUtils]: 9: Hoare triple {7328#(and (<= ULTIMATE.start_main_~i~6 8) (<= 8 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {7329#(and (<= ULTIMATE.start_main_~i~6 9) (<= 9 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:59:21,742 INFO L273 TraceCheckUtils]: 10: Hoare triple {7329#(and (<= ULTIMATE.start_main_~i~6 9) (<= 9 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {7330#(and (<= ULTIMATE.start_main_~i~6 10) (<= 10 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:59:21,743 INFO L273 TraceCheckUtils]: 11: Hoare triple {7330#(and (<= ULTIMATE.start_main_~i~6 10) (<= 10 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {7331#(and (<= 11 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 11))} is VALID [2019-01-31 14:59:21,744 INFO L273 TraceCheckUtils]: 12: Hoare triple {7331#(and (<= 11 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 11))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {7332#(and (<= ULTIMATE.start_main_~i~6 12) (<= 12 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:59:21,745 INFO L273 TraceCheckUtils]: 13: Hoare triple {7332#(and (<= ULTIMATE.start_main_~i~6 12) (<= 12 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {7333#(and (<= ULTIMATE.start_main_~i~6 13) (<= 13 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:59:21,746 INFO L273 TraceCheckUtils]: 14: Hoare triple {7333#(and (<= ULTIMATE.start_main_~i~6 13) (<= 13 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {7334#(and (<= ULTIMATE.start_main_~i~6 14) (<= 14 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:59:21,747 INFO L273 TraceCheckUtils]: 15: Hoare triple {7334#(and (<= ULTIMATE.start_main_~i~6 14) (<= 14 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {7335#(or (and (<= 15 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 15)) (not (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 1))))} is VALID [2019-01-31 14:59:21,748 INFO L273 TraceCheckUtils]: 16: Hoare triple {7335#(or (and (<= 15 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 15)) (not (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 1))))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {7336#(or (<= (+ ULTIMATE.start_main_~i~6 1) ULTIMATE.start_main_~MAX~6) (= 16 ULTIMATE.start_main_~MAX~6))} is VALID [2019-01-31 14:59:21,749 INFO L273 TraceCheckUtils]: 17: Hoare triple {7336#(or (<= (+ ULTIMATE.start_main_~i~6 1) ULTIMATE.start_main_~MAX~6) (= 16 ULTIMATE.start_main_~MAX~6))} assume !(main_~i~6 < main_~MAX~6);main_~str1~6 := main_~str1~6[main_~MAX~6 - 1 := 0];main_~j~6 := 0;main_~i~6 := main_~MAX~6 - 1; {7337#(= (+ ULTIMATE.start_main_~j~6 16) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:59:21,750 INFO L273 TraceCheckUtils]: 18: Hoare triple {7337#(= (+ ULTIMATE.start_main_~j~6 16) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {7338#(= (+ ULTIMATE.start_main_~j~6 15) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:59:21,751 INFO L273 TraceCheckUtils]: 19: Hoare triple {7338#(= (+ ULTIMATE.start_main_~j~6 15) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {7339#(= (+ ULTIMATE.start_main_~j~6 14) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:59:21,752 INFO L273 TraceCheckUtils]: 20: Hoare triple {7339#(= (+ ULTIMATE.start_main_~j~6 14) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {7340#(= (+ ULTIMATE.start_main_~j~6 13) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:59:21,753 INFO L273 TraceCheckUtils]: 21: Hoare triple {7340#(= (+ ULTIMATE.start_main_~j~6 13) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {7341#(= (+ ULTIMATE.start_main_~j~6 12) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:59:21,754 INFO L273 TraceCheckUtils]: 22: Hoare triple {7341#(= (+ ULTIMATE.start_main_~j~6 12) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {7342#(= (+ ULTIMATE.start_main_~j~6 11) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:59:21,755 INFO L273 TraceCheckUtils]: 23: Hoare triple {7342#(= (+ ULTIMATE.start_main_~j~6 11) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {7343#(= (+ ULTIMATE.start_main_~j~6 10) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:59:21,756 INFO L273 TraceCheckUtils]: 24: Hoare triple {7343#(= (+ ULTIMATE.start_main_~j~6 10) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {7344#(= (+ ULTIMATE.start_main_~j~6 9) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:59:21,756 INFO L273 TraceCheckUtils]: 25: Hoare triple {7344#(= (+ ULTIMATE.start_main_~j~6 9) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {7345#(= (+ ULTIMATE.start_main_~j~6 8) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:59:21,757 INFO L273 TraceCheckUtils]: 26: Hoare triple {7345#(= (+ ULTIMATE.start_main_~j~6 8) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {7346#(= (+ ULTIMATE.start_main_~j~6 7) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:59:21,758 INFO L273 TraceCheckUtils]: 27: Hoare triple {7346#(= (+ ULTIMATE.start_main_~j~6 7) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {7347#(= (+ ULTIMATE.start_main_~j~6 6) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:59:21,759 INFO L273 TraceCheckUtils]: 28: Hoare triple {7347#(= (+ ULTIMATE.start_main_~j~6 6) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {7348#(= (+ ULTIMATE.start_main_~j~6 5) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:59:21,760 INFO L273 TraceCheckUtils]: 29: Hoare triple {7348#(= (+ ULTIMATE.start_main_~j~6 5) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {7349#(= (+ ULTIMATE.start_main_~j~6 4) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:59:21,761 INFO L273 TraceCheckUtils]: 30: Hoare triple {7349#(= (+ ULTIMATE.start_main_~j~6 4) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {7350#(= (+ ULTIMATE.start_main_~j~6 3) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:59:21,762 INFO L273 TraceCheckUtils]: 31: Hoare triple {7350#(= (+ ULTIMATE.start_main_~j~6 3) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {7351#(= (+ ULTIMATE.start_main_~j~6 2) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:59:21,763 INFO L273 TraceCheckUtils]: 32: Hoare triple {7351#(= (+ ULTIMATE.start_main_~j~6 2) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {7352#(= (+ ULTIMATE.start_main_~j~6 1) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:59:21,767 INFO L273 TraceCheckUtils]: 33: Hoare triple {7352#(= (+ ULTIMATE.start_main_~j~6 1) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {7353#(= (select ULTIMATE.start_main_~str1~6 0) (select ULTIMATE.start_main_~str2~6 (+ ULTIMATE.start_main_~MAX~6 (- 1))))} is VALID [2019-01-31 14:59:21,767 INFO L273 TraceCheckUtils]: 34: Hoare triple {7353#(= (select ULTIMATE.start_main_~str1~6 0) (select ULTIMATE.start_main_~str2~6 (+ ULTIMATE.start_main_~MAX~6 (- 1))))} assume !(main_~i~6 >= 0);main_~j~6 := main_~MAX~6 - 1;main_~i~6 := 0;assume !!(main_~i~6 < main_~MAX~6);__VERIFIER_assert_#in~cond := (if main_~str1~6[main_~i~6] == main_~str2~6[main_~j~6] then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond;assume __VERIFIER_assert_~cond == 0;assume !false; {7319#false} is VALID [2019-01-31 14:59:21,767 INFO L273 TraceCheckUtils]: 35: Hoare triple {7319#false} assume !false; {7319#false} is VALID [2019-01-31 14:59:21,769 INFO L134 CoverageAnalysis]: Checked inductivity of 272 backedges. 0 proven. 272 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-31 14:59:21,770 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-31 14:59:21,770 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-01-31 14:59:21,770 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-01-31 14:59:21,770 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-01-31 14:59:21,770 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-31 14:59:21,770 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 25 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 25 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-01-31 14:59:21,778 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2019-01-31 14:59:21,778 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder TERMS_WITH_SMALL_CONSTANTS_FIRST (IT: FPandBP) [2019-01-31 14:59:21,801 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-01-31 14:59:21,801 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-01-31 14:59:21,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-31 14:59:21,817 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-31 14:59:22,612 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2019-01-31 14:59:22,614 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-01-31 14:59:22,620 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-31 14:59:22,620 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:17, output treesize:16 [2019-01-31 14:59:22,623 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-01-31 14:59:22,623 WARN L398 uantifierElimination]: Input elimination task: ∃ [v_ULTIMATE.start_main_~str2~6_206]. (and (<= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 17)) (<= 16 ULTIMATE.start_main_~MAX~6) (= (store v_ULTIMATE.start_main_~str2~6_206 15 (select ULTIMATE.start_main_~str1~6 0)) ULTIMATE.start_main_~str2~6)) [2019-01-31 14:59:22,623 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (and (<= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 17)) (= (select ULTIMATE.start_main_~str2~6 15) (select ULTIMATE.start_main_~str1~6 0)) (<= 16 ULTIMATE.start_main_~MAX~6)) [2019-01-31 14:59:22,687 INFO L273 TraceCheckUtils]: 0: Hoare triple {7318#true} havoc main_#res;havoc main_#t~nondet0, main_#t~nondet2, main_#t~post1, main_#t~post4, main_#t~post3, main_#t~post6, main_#t~post5, main_~MAX~6, main_~str1~6, main_~str2~6, main_~cont~6, main_~i~6, main_~j~6;main_~MAX~6 := (if main_#t~nondet0 % 4294967296 % 4294967296 <= 2147483647 then main_#t~nondet0 % 4294967296 % 4294967296 else main_#t~nondet0 % 4294967296 % 4294967296 - 4294967296);havoc main_#t~nondet0;havoc main_~str1~6;havoc main_~str2~6;havoc main_~cont~6;havoc main_~i~6;havoc main_~j~6;main_~cont~6 := 0;main_~i~6 := 0; {7318#true} is VALID [2019-01-31 14:59:22,687 INFO L273 TraceCheckUtils]: 1: Hoare triple {7318#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {7318#true} is VALID [2019-01-31 14:59:22,687 INFO L273 TraceCheckUtils]: 2: Hoare triple {7318#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {7318#true} is VALID [2019-01-31 14:59:22,687 INFO L273 TraceCheckUtils]: 3: Hoare triple {7318#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {7318#true} is VALID [2019-01-31 14:59:22,688 INFO L273 TraceCheckUtils]: 4: Hoare triple {7318#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {7318#true} is VALID [2019-01-31 14:59:22,688 INFO L273 TraceCheckUtils]: 5: Hoare triple {7318#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {7318#true} is VALID [2019-01-31 14:59:22,688 INFO L273 TraceCheckUtils]: 6: Hoare triple {7318#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {7318#true} is VALID [2019-01-31 14:59:22,688 INFO L273 TraceCheckUtils]: 7: Hoare triple {7318#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {7318#true} is VALID [2019-01-31 14:59:22,688 INFO L273 TraceCheckUtils]: 8: Hoare triple {7318#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {7318#true} is VALID [2019-01-31 14:59:22,688 INFO L273 TraceCheckUtils]: 9: Hoare triple {7318#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {7318#true} is VALID [2019-01-31 14:59:22,689 INFO L273 TraceCheckUtils]: 10: Hoare triple {7318#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {7318#true} is VALID [2019-01-31 14:59:22,689 INFO L273 TraceCheckUtils]: 11: Hoare triple {7318#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {7318#true} is VALID [2019-01-31 14:59:22,689 INFO L273 TraceCheckUtils]: 12: Hoare triple {7318#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {7318#true} is VALID [2019-01-31 14:59:22,689 INFO L273 TraceCheckUtils]: 13: Hoare triple {7318#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {7318#true} is VALID [2019-01-31 14:59:22,689 INFO L273 TraceCheckUtils]: 14: Hoare triple {7318#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {7318#true} is VALID [2019-01-31 14:59:22,689 INFO L273 TraceCheckUtils]: 15: Hoare triple {7318#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {7318#true} is VALID [2019-01-31 14:59:22,689 INFO L273 TraceCheckUtils]: 16: Hoare triple {7318#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {7318#true} is VALID [2019-01-31 14:59:22,690 INFO L273 TraceCheckUtils]: 17: Hoare triple {7318#true} assume !(main_~i~6 < main_~MAX~6);main_~str1~6 := main_~str1~6[main_~MAX~6 - 1 := 0];main_~j~6 := 0;main_~i~6 := main_~MAX~6 - 1; {7408#(and (= ULTIMATE.start_main_~j~6 0) (= (+ ULTIMATE.start_main_~i~6 1) ULTIMATE.start_main_~MAX~6))} is VALID [2019-01-31 14:59:22,690 INFO L273 TraceCheckUtils]: 18: Hoare triple {7408#(and (= ULTIMATE.start_main_~j~6 0) (= (+ ULTIMATE.start_main_~i~6 1) ULTIMATE.start_main_~MAX~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {7412#(and (= ULTIMATE.start_main_~j~6 1) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 2)))} is VALID [2019-01-31 14:59:22,691 INFO L273 TraceCheckUtils]: 19: Hoare triple {7412#(and (= ULTIMATE.start_main_~j~6 1) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 2)))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {7416#(and (= (+ ULTIMATE.start_main_~i~6 3) ULTIMATE.start_main_~MAX~6) (= ULTIMATE.start_main_~j~6 2))} is VALID [2019-01-31 14:59:22,692 INFO L273 TraceCheckUtils]: 20: Hoare triple {7416#(and (= (+ ULTIMATE.start_main_~i~6 3) ULTIMATE.start_main_~MAX~6) (= ULTIMATE.start_main_~j~6 2))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {7420#(and (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 4)) (= ULTIMATE.start_main_~j~6 3))} is VALID [2019-01-31 14:59:22,692 INFO L273 TraceCheckUtils]: 21: Hoare triple {7420#(and (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 4)) (= ULTIMATE.start_main_~j~6 3))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {7424#(and (= ULTIMATE.start_main_~j~6 4) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 5)))} is VALID [2019-01-31 14:59:22,693 INFO L273 TraceCheckUtils]: 22: Hoare triple {7424#(and (= ULTIMATE.start_main_~j~6 4) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 5)))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {7428#(and (= ULTIMATE.start_main_~j~6 5) (= (+ ULTIMATE.start_main_~i~6 6) ULTIMATE.start_main_~MAX~6))} is VALID [2019-01-31 14:59:22,694 INFO L273 TraceCheckUtils]: 23: Hoare triple {7428#(and (= ULTIMATE.start_main_~j~6 5) (= (+ ULTIMATE.start_main_~i~6 6) ULTIMATE.start_main_~MAX~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {7432#(and (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 7)) (= ULTIMATE.start_main_~j~6 6))} is VALID [2019-01-31 14:59:22,695 INFO L273 TraceCheckUtils]: 24: Hoare triple {7432#(and (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 7)) (= ULTIMATE.start_main_~j~6 6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {7436#(and (= ULTIMATE.start_main_~j~6 7) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 8)))} is VALID [2019-01-31 14:59:22,696 INFO L273 TraceCheckUtils]: 25: Hoare triple {7436#(and (= ULTIMATE.start_main_~j~6 7) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 8)))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {7440#(and (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 9)) (= ULTIMATE.start_main_~j~6 8))} is VALID [2019-01-31 14:59:22,697 INFO L273 TraceCheckUtils]: 26: Hoare triple {7440#(and (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 9)) (= ULTIMATE.start_main_~j~6 8))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {7444#(and (= ULTIMATE.start_main_~j~6 9) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 10)))} is VALID [2019-01-31 14:59:22,698 INFO L273 TraceCheckUtils]: 27: Hoare triple {7444#(and (= ULTIMATE.start_main_~j~6 9) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 10)))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {7448#(and (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 11)) (= ULTIMATE.start_main_~j~6 10))} is VALID [2019-01-31 14:59:22,699 INFO L273 TraceCheckUtils]: 28: Hoare triple {7448#(and (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 11)) (= ULTIMATE.start_main_~j~6 10))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {7452#(and (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 12)) (= ULTIMATE.start_main_~j~6 11))} is VALID [2019-01-31 14:59:22,700 INFO L273 TraceCheckUtils]: 29: Hoare triple {7452#(and (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 12)) (= ULTIMATE.start_main_~j~6 11))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {7456#(and (= ULTIMATE.start_main_~j~6 12) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 13)))} is VALID [2019-01-31 14:59:22,701 INFO L273 TraceCheckUtils]: 30: Hoare triple {7456#(and (= ULTIMATE.start_main_~j~6 12) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 13)))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {7460#(and (= ULTIMATE.start_main_~j~6 13) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 14)))} is VALID [2019-01-31 14:59:22,702 INFO L273 TraceCheckUtils]: 31: Hoare triple {7460#(and (= ULTIMATE.start_main_~j~6 13) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 14)))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {7464#(and (= ULTIMATE.start_main_~j~6 14) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 15)))} is VALID [2019-01-31 14:59:22,703 INFO L273 TraceCheckUtils]: 32: Hoare triple {7464#(and (= ULTIMATE.start_main_~j~6 14) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 15)))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {7468#(and (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 16)) (= ULTIMATE.start_main_~j~6 15))} is VALID [2019-01-31 14:59:22,704 INFO L273 TraceCheckUtils]: 33: Hoare triple {7468#(and (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 16)) (= ULTIMATE.start_main_~j~6 15))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {7472#(and (<= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 17)) (= (select ULTIMATE.start_main_~str2~6 15) (select ULTIMATE.start_main_~str1~6 0)) (<= 16 ULTIMATE.start_main_~MAX~6))} is VALID [2019-01-31 14:59:22,705 INFO L273 TraceCheckUtils]: 34: Hoare triple {7472#(and (<= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 17)) (= (select ULTIMATE.start_main_~str2~6 15) (select ULTIMATE.start_main_~str1~6 0)) (<= 16 ULTIMATE.start_main_~MAX~6))} assume !(main_~i~6 >= 0);main_~j~6 := main_~MAX~6 - 1;main_~i~6 := 0;assume !!(main_~i~6 < main_~MAX~6);__VERIFIER_assert_#in~cond := (if main_~str1~6[main_~i~6] == main_~str2~6[main_~j~6] then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond;assume __VERIFIER_assert_~cond == 0;assume !false; {7319#false} is VALID [2019-01-31 14:59:22,706 INFO L273 TraceCheckUtils]: 35: Hoare triple {7319#false} assume !false; {7319#false} is VALID [2019-01-31 14:59:22,708 INFO L134 CoverageAnalysis]: Checked inductivity of 272 backedges. 0 proven. 136 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2019-01-31 14:59:22,709 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2019-01-31 14:59:22,823 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 5 [2019-01-31 14:59:22,825 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-01-31 14:59:22,837 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-31 14:59:22,838 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:22, output treesize:12 [2019-01-31 14:59:22,841 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-01-31 14:59:22,841 WARN L398 uantifierElimination]: Input elimination task: ∀ [ULTIMATE.start_main_~str2~6, ULTIMATE.start_main_~str1~6]. (or (not (<= 0 ULTIMATE.start_main_~i~6)) (let ((.cse0 (select ULTIMATE.start_main_~str1~6 0))) (= .cse0 (select (store ULTIMATE.start_main_~str2~6 ULTIMATE.start_main_~j~6 .cse0) (+ ULTIMATE.start_main_~MAX~6 (- 1))))) (< 0 ULTIMATE.start_main_~i~6)) [2019-01-31 14:59:22,842 WARN L399 uantifierElimination]: ElimStorePlain result: ∀ []. (or (< ULTIMATE.start_main_~i~6 0) (< 0 ULTIMATE.start_main_~i~6) (= (+ ULTIMATE.start_main_~j~6 1) ULTIMATE.start_main_~MAX~6)) [2019-01-31 14:59:23,850 INFO L273 TraceCheckUtils]: 35: Hoare triple {7319#false} assume !false; {7319#false} is VALID [2019-01-31 14:59:23,851 INFO L273 TraceCheckUtils]: 34: Hoare triple {7482#(or (= (select ULTIMATE.start_main_~str1~6 0) (select ULTIMATE.start_main_~str2~6 (+ ULTIMATE.start_main_~MAX~6 (- 1)))) (<= 0 ULTIMATE.start_main_~i~6))} assume !(main_~i~6 >= 0);main_~j~6 := main_~MAX~6 - 1;main_~i~6 := 0;assume !!(main_~i~6 < main_~MAX~6);__VERIFIER_assert_#in~cond := (if main_~str1~6[main_~i~6] == main_~str2~6[main_~j~6] then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond;assume __VERIFIER_assert_~cond == 0;assume !false; {7319#false} is VALID [2019-01-31 14:59:23,852 INFO L273 TraceCheckUtils]: 33: Hoare triple {7486#(or (< ULTIMATE.start_main_~i~6 0) (< 0 ULTIMATE.start_main_~i~6) (= (+ ULTIMATE.start_main_~j~6 1) ULTIMATE.start_main_~MAX~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {7482#(or (= (select ULTIMATE.start_main_~str1~6 0) (select ULTIMATE.start_main_~str2~6 (+ ULTIMATE.start_main_~MAX~6 (- 1)))) (<= 0 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:59:23,853 INFO L273 TraceCheckUtils]: 32: Hoare triple {7490#(or (= (+ ULTIMATE.start_main_~j~6 2) ULTIMATE.start_main_~MAX~6) (< 1 ULTIMATE.start_main_~i~6) (< ULTIMATE.start_main_~i~6 1))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {7486#(or (< ULTIMATE.start_main_~i~6 0) (< 0 ULTIMATE.start_main_~i~6) (= (+ ULTIMATE.start_main_~j~6 1) ULTIMATE.start_main_~MAX~6))} is VALID [2019-01-31 14:59:23,855 INFO L273 TraceCheckUtils]: 31: Hoare triple {7494#(or (= (+ ULTIMATE.start_main_~j~6 3) ULTIMATE.start_main_~MAX~6) (< ULTIMATE.start_main_~i~6 2) (< 2 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {7490#(or (= (+ ULTIMATE.start_main_~j~6 2) ULTIMATE.start_main_~MAX~6) (< 1 ULTIMATE.start_main_~i~6) (< ULTIMATE.start_main_~i~6 1))} is VALID [2019-01-31 14:59:23,856 INFO L273 TraceCheckUtils]: 30: Hoare triple {7498#(or (= (+ ULTIMATE.start_main_~j~6 4) ULTIMATE.start_main_~MAX~6) (< ULTIMATE.start_main_~i~6 3) (< 3 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {7494#(or (= (+ ULTIMATE.start_main_~j~6 3) ULTIMATE.start_main_~MAX~6) (< ULTIMATE.start_main_~i~6 2) (< 2 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:59:23,857 INFO L273 TraceCheckUtils]: 29: Hoare triple {7502#(or (= (+ ULTIMATE.start_main_~j~6 5) ULTIMATE.start_main_~MAX~6) (< 4 ULTIMATE.start_main_~i~6) (< ULTIMATE.start_main_~i~6 4))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {7498#(or (= (+ ULTIMATE.start_main_~j~6 4) ULTIMATE.start_main_~MAX~6) (< ULTIMATE.start_main_~i~6 3) (< 3 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:59:23,858 INFO L273 TraceCheckUtils]: 28: Hoare triple {7506#(or (< ULTIMATE.start_main_~i~6 5) (< 5 ULTIMATE.start_main_~i~6) (= (+ ULTIMATE.start_main_~j~6 6) ULTIMATE.start_main_~MAX~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {7502#(or (= (+ ULTIMATE.start_main_~j~6 5) ULTIMATE.start_main_~MAX~6) (< 4 ULTIMATE.start_main_~i~6) (< ULTIMATE.start_main_~i~6 4))} is VALID [2019-01-31 14:59:23,859 INFO L273 TraceCheckUtils]: 27: Hoare triple {7510#(or (< ULTIMATE.start_main_~i~6 6) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 7)) (< 6 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {7506#(or (< ULTIMATE.start_main_~i~6 5) (< 5 ULTIMATE.start_main_~i~6) (= (+ ULTIMATE.start_main_~j~6 6) ULTIMATE.start_main_~MAX~6))} is VALID [2019-01-31 14:59:23,860 INFO L273 TraceCheckUtils]: 26: Hoare triple {7514#(or (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 8)) (< ULTIMATE.start_main_~i~6 7) (< 7 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {7510#(or (< ULTIMATE.start_main_~i~6 6) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 7)) (< 6 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:59:23,861 INFO L273 TraceCheckUtils]: 25: Hoare triple {7518#(or (< 8 ULTIMATE.start_main_~i~6) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 9)) (< ULTIMATE.start_main_~i~6 8))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {7514#(or (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 8)) (< ULTIMATE.start_main_~i~6 7) (< 7 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:59:23,862 INFO L273 TraceCheckUtils]: 24: Hoare triple {7522#(or (< ULTIMATE.start_main_~i~6 9) (= (+ ULTIMATE.start_main_~j~6 10) ULTIMATE.start_main_~MAX~6) (< 9 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {7518#(or (< 8 ULTIMATE.start_main_~i~6) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 9)) (< ULTIMATE.start_main_~i~6 8))} is VALID [2019-01-31 14:59:23,863 INFO L273 TraceCheckUtils]: 23: Hoare triple {7526#(or (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 11)) (< 10 ULTIMATE.start_main_~i~6) (< ULTIMATE.start_main_~i~6 10))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {7522#(or (< ULTIMATE.start_main_~i~6 9) (= (+ ULTIMATE.start_main_~j~6 10) ULTIMATE.start_main_~MAX~6) (< 9 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:59:23,864 INFO L273 TraceCheckUtils]: 22: Hoare triple {7530#(or (< ULTIMATE.start_main_~i~6 11) (= (+ ULTIMATE.start_main_~j~6 12) ULTIMATE.start_main_~MAX~6) (< 11 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {7526#(or (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 11)) (< 10 ULTIMATE.start_main_~i~6) (< ULTIMATE.start_main_~i~6 10))} is VALID [2019-01-31 14:59:23,866 INFO L273 TraceCheckUtils]: 21: Hoare triple {7534#(or (< 12 ULTIMATE.start_main_~i~6) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 13)) (< ULTIMATE.start_main_~i~6 12))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {7530#(or (< ULTIMATE.start_main_~i~6 11) (= (+ ULTIMATE.start_main_~j~6 12) ULTIMATE.start_main_~MAX~6) (< 11 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:59:23,867 INFO L273 TraceCheckUtils]: 20: Hoare triple {7538#(or (< ULTIMATE.start_main_~i~6 13) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 14)) (< 13 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {7534#(or (< 12 ULTIMATE.start_main_~i~6) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 13)) (< ULTIMATE.start_main_~i~6 12))} is VALID [2019-01-31 14:59:23,868 INFO L273 TraceCheckUtils]: 19: Hoare triple {7542#(or (< 14 ULTIMATE.start_main_~i~6) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 15)) (< ULTIMATE.start_main_~i~6 14))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {7538#(or (< ULTIMATE.start_main_~i~6 13) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 14)) (< 13 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:59:23,869 INFO L273 TraceCheckUtils]: 18: Hoare triple {7546#(or (< 15 ULTIMATE.start_main_~i~6) (< ULTIMATE.start_main_~i~6 15) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 16)))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {7542#(or (< 14 ULTIMATE.start_main_~i~6) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 15)) (< ULTIMATE.start_main_~i~6 14))} is VALID [2019-01-31 14:59:23,870 INFO L273 TraceCheckUtils]: 17: Hoare triple {7318#true} assume !(main_~i~6 < main_~MAX~6);main_~str1~6 := main_~str1~6[main_~MAX~6 - 1 := 0];main_~j~6 := 0;main_~i~6 := main_~MAX~6 - 1; {7546#(or (< 15 ULTIMATE.start_main_~i~6) (< ULTIMATE.start_main_~i~6 15) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 16)))} is VALID [2019-01-31 14:59:23,870 INFO L273 TraceCheckUtils]: 16: Hoare triple {7318#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {7318#true} is VALID [2019-01-31 14:59:23,870 INFO L273 TraceCheckUtils]: 15: Hoare triple {7318#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {7318#true} is VALID [2019-01-31 14:59:23,870 INFO L273 TraceCheckUtils]: 14: Hoare triple {7318#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {7318#true} is VALID [2019-01-31 14:59:23,871 INFO L273 TraceCheckUtils]: 13: Hoare triple {7318#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {7318#true} is VALID [2019-01-31 14:59:23,871 INFO L273 TraceCheckUtils]: 12: Hoare triple {7318#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {7318#true} is VALID [2019-01-31 14:59:23,871 INFO L273 TraceCheckUtils]: 11: Hoare triple {7318#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {7318#true} is VALID [2019-01-31 14:59:23,871 INFO L273 TraceCheckUtils]: 10: Hoare triple {7318#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {7318#true} is VALID [2019-01-31 14:59:23,871 INFO L273 TraceCheckUtils]: 9: Hoare triple {7318#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {7318#true} is VALID [2019-01-31 14:59:23,871 INFO L273 TraceCheckUtils]: 8: Hoare triple {7318#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {7318#true} is VALID [2019-01-31 14:59:23,872 INFO L273 TraceCheckUtils]: 7: Hoare triple {7318#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {7318#true} is VALID [2019-01-31 14:59:23,872 INFO L273 TraceCheckUtils]: 6: Hoare triple {7318#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {7318#true} is VALID [2019-01-31 14:59:23,872 INFO L273 TraceCheckUtils]: 5: Hoare triple {7318#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {7318#true} is VALID [2019-01-31 14:59:23,872 INFO L273 TraceCheckUtils]: 4: Hoare triple {7318#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {7318#true} is VALID [2019-01-31 14:59:23,872 INFO L273 TraceCheckUtils]: 3: Hoare triple {7318#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {7318#true} is VALID [2019-01-31 14:59:23,873 INFO L273 TraceCheckUtils]: 2: Hoare triple {7318#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {7318#true} is VALID [2019-01-31 14:59:23,873 INFO L273 TraceCheckUtils]: 1: Hoare triple {7318#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {7318#true} is VALID [2019-01-31 14:59:23,873 INFO L273 TraceCheckUtils]: 0: Hoare triple {7318#true} havoc main_#res;havoc main_#t~nondet0, main_#t~nondet2, main_#t~post1, main_#t~post4, main_#t~post3, main_#t~post6, main_#t~post5, main_~MAX~6, main_~str1~6, main_~str2~6, main_~cont~6, main_~i~6, main_~j~6;main_~MAX~6 := (if main_#t~nondet0 % 4294967296 % 4294967296 <= 2147483647 then main_#t~nondet0 % 4294967296 % 4294967296 else main_#t~nondet0 % 4294967296 % 4294967296 - 4294967296);havoc main_#t~nondet0;havoc main_~str1~6;havoc main_~str2~6;havoc main_~cont~6;havoc main_~i~6;havoc main_~j~6;main_~cont~6 := 0;main_~i~6 := 0; {7318#true} is VALID [2019-01-31 14:59:23,875 INFO L134 CoverageAnalysis]: Checked inductivity of 272 backedges. 0 proven. 136 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2019-01-31 14:59:23,895 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-01-31 14:59:23,895 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [35, 19, 19] total 70 [2019-01-31 14:59:23,895 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-01-31 14:59:23,895 INFO L78 Accepts]: Start accepts. Automaton has 53 states. Word has length 36 [2019-01-31 14:59:23,896 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-01-31 14:59:23,896 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 53 states. [2019-01-31 14:59:23,950 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 56 edges. 56 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-01-31 14:59:23,951 INFO L459 AbstractCegarLoop]: Interpolant automaton has 53 states [2019-01-31 14:59:23,951 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 53 interpolants. [2019-01-31 14:59:23,952 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=682, Invalid=4148, Unknown=0, NotChecked=0, Total=4830 [2019-01-31 14:59:23,952 INFO L87 Difference]: Start difference. First operand 37 states and 38 transitions. Second operand 53 states. [2019-01-31 14:59:30,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 14:59:30,739 INFO L93 Difference]: Finished difference Result 59 states and 63 transitions. [2019-01-31 14:59:30,740 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2019-01-31 14:59:30,740 INFO L78 Accepts]: Start accepts. Automaton has 53 states. Word has length 36 [2019-01-31 14:59:30,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-31 14:59:30,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2019-01-31 14:59:30,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 63 transitions. [2019-01-31 14:59:30,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2019-01-31 14:59:30,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 63 transitions. [2019-01-31 14:59:30,742 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 56 states and 63 transitions. [2019-01-31 14:59:30,812 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 63 edges. 63 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-01-31 14:59:30,813 INFO L225 Difference]: With dead ends: 59 [2019-01-31 14:59:30,813 INFO L226 Difference]: Without dead ends: 39 [2019-01-31 14:59:30,814 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 89 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 664 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=1147, Invalid=7043, Unknown=0, NotChecked=0, Total=8190 [2019-01-31 14:59:30,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2019-01-31 14:59:31,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2019-01-31 14:59:31,620 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-01-31 14:59:31,620 INFO L82 GeneralOperation]: Start isEquivalent. First operand 39 states. Second operand 39 states. [2019-01-31 14:59:31,620 INFO L74 IsIncluded]: Start isIncluded. First operand 39 states. Second operand 39 states. [2019-01-31 14:59:31,620 INFO L87 Difference]: Start difference. First operand 39 states. Second operand 39 states. [2019-01-31 14:59:31,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 14:59:31,621 INFO L93 Difference]: Finished difference Result 39 states and 40 transitions. [2019-01-31 14:59:31,621 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 40 transitions. [2019-01-31 14:59:31,622 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-31 14:59:31,622 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-01-31 14:59:31,622 INFO L74 IsIncluded]: Start isIncluded. First operand 39 states. Second operand 39 states. [2019-01-31 14:59:31,622 INFO L87 Difference]: Start difference. First operand 39 states. Second operand 39 states. [2019-01-31 14:59:31,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 14:59:31,622 INFO L93 Difference]: Finished difference Result 39 states and 40 transitions. [2019-01-31 14:59:31,622 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 40 transitions. [2019-01-31 14:59:31,623 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-31 14:59:31,623 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-01-31 14:59:31,623 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-01-31 14:59:31,623 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-01-31 14:59:31,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2019-01-31 14:59:31,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 40 transitions. [2019-01-31 14:59:31,624 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 40 transitions. Word has length 36 [2019-01-31 14:59:31,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-31 14:59:31,624 INFO L480 AbstractCegarLoop]: Abstraction has 39 states and 40 transitions. [2019-01-31 14:59:31,624 INFO L481 AbstractCegarLoop]: Interpolant automaton has 53 states. [2019-01-31 14:59:31,624 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 40 transitions. [2019-01-31 14:59:31,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2019-01-31 14:59:31,625 INFO L394 BasicCegarLoop]: Found error trace [2019-01-31 14:59:31,625 INFO L402 BasicCegarLoop]: trace histogram [17, 17, 1, 1, 1, 1] [2019-01-31 14:59:31,625 INFO L423 AbstractCegarLoop]: === Iteration 27 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2019-01-31 14:59:31,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-31 14:59:31,625 INFO L82 PathProgramCache]: Analyzing trace with hash -392102219, now seen corresponding path program 25 times [2019-01-31 14:59:31,625 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-01-31 14:59:31,626 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-31 14:59:31,626 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-01-31 14:59:31,626 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-31 14:59:31,626 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-01-31 14:59:31,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-31 14:59:32,786 INFO L273 TraceCheckUtils]: 0: Hoare triple {7911#true} havoc main_#res;havoc main_#t~nondet0, main_#t~nondet2, main_#t~post1, main_#t~post4, main_#t~post3, main_#t~post6, main_#t~post5, main_~MAX~6, main_~str1~6, main_~str2~6, main_~cont~6, main_~i~6, main_~j~6;main_~MAX~6 := (if main_#t~nondet0 % 4294967296 % 4294967296 <= 2147483647 then main_#t~nondet0 % 4294967296 % 4294967296 else main_#t~nondet0 % 4294967296 % 4294967296 - 4294967296);havoc main_#t~nondet0;havoc main_~str1~6;havoc main_~str2~6;havoc main_~cont~6;havoc main_~i~6;havoc main_~j~6;main_~cont~6 := 0;main_~i~6 := 0; {7913#(and (<= ULTIMATE.start_main_~i~6 0) (<= 0 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:59:32,787 INFO L273 TraceCheckUtils]: 1: Hoare triple {7913#(and (<= ULTIMATE.start_main_~i~6 0) (<= 0 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {7914#(and (<= ULTIMATE.start_main_~i~6 1) (<= 1 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:59:32,788 INFO L273 TraceCheckUtils]: 2: Hoare triple {7914#(and (<= ULTIMATE.start_main_~i~6 1) (<= 1 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {7915#(and (<= ULTIMATE.start_main_~i~6 2) (<= 2 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:59:32,789 INFO L273 TraceCheckUtils]: 3: Hoare triple {7915#(and (<= ULTIMATE.start_main_~i~6 2) (<= 2 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {7916#(and (<= 3 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 3))} is VALID [2019-01-31 14:59:32,790 INFO L273 TraceCheckUtils]: 4: Hoare triple {7916#(and (<= 3 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 3))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {7917#(and (<= ULTIMATE.start_main_~i~6 4) (<= 4 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:59:32,791 INFO L273 TraceCheckUtils]: 5: Hoare triple {7917#(and (<= ULTIMATE.start_main_~i~6 4) (<= 4 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {7918#(and (<= 5 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 5))} is VALID [2019-01-31 14:59:32,792 INFO L273 TraceCheckUtils]: 6: Hoare triple {7918#(and (<= 5 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 5))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {7919#(and (<= ULTIMATE.start_main_~i~6 6) (<= 6 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:59:32,793 INFO L273 TraceCheckUtils]: 7: Hoare triple {7919#(and (<= ULTIMATE.start_main_~i~6 6) (<= 6 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {7920#(and (<= 7 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 7))} is VALID [2019-01-31 14:59:32,794 INFO L273 TraceCheckUtils]: 8: Hoare triple {7920#(and (<= 7 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 7))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {7921#(and (<= ULTIMATE.start_main_~i~6 8) (<= 8 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:59:32,795 INFO L273 TraceCheckUtils]: 9: Hoare triple {7921#(and (<= ULTIMATE.start_main_~i~6 8) (<= 8 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {7922#(and (<= ULTIMATE.start_main_~i~6 9) (<= 9 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:59:32,795 INFO L273 TraceCheckUtils]: 10: Hoare triple {7922#(and (<= ULTIMATE.start_main_~i~6 9) (<= 9 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {7923#(and (<= ULTIMATE.start_main_~i~6 10) (<= 10 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:59:32,796 INFO L273 TraceCheckUtils]: 11: Hoare triple {7923#(and (<= ULTIMATE.start_main_~i~6 10) (<= 10 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {7924#(and (<= 11 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 11))} is VALID [2019-01-31 14:59:32,797 INFO L273 TraceCheckUtils]: 12: Hoare triple {7924#(and (<= 11 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 11))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {7925#(and (<= ULTIMATE.start_main_~i~6 12) (<= 12 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:59:32,798 INFO L273 TraceCheckUtils]: 13: Hoare triple {7925#(and (<= ULTIMATE.start_main_~i~6 12) (<= 12 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {7926#(and (<= ULTIMATE.start_main_~i~6 13) (<= 13 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:59:32,799 INFO L273 TraceCheckUtils]: 14: Hoare triple {7926#(and (<= ULTIMATE.start_main_~i~6 13) (<= 13 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {7927#(and (<= ULTIMATE.start_main_~i~6 14) (<= 14 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:59:32,800 INFO L273 TraceCheckUtils]: 15: Hoare triple {7927#(and (<= ULTIMATE.start_main_~i~6 14) (<= 14 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {7928#(and (<= 15 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 15))} is VALID [2019-01-31 14:59:32,801 INFO L273 TraceCheckUtils]: 16: Hoare triple {7928#(and (<= 15 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 15))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {7929#(or (not (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 1))) (and (<= 16 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 16)))} is VALID [2019-01-31 14:59:32,802 INFO L273 TraceCheckUtils]: 17: Hoare triple {7929#(or (not (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 1))) (and (<= 16 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 16)))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {7930#(or (= 17 ULTIMATE.start_main_~MAX~6) (<= (+ ULTIMATE.start_main_~i~6 1) ULTIMATE.start_main_~MAX~6))} is VALID [2019-01-31 14:59:32,803 INFO L273 TraceCheckUtils]: 18: Hoare triple {7930#(or (= 17 ULTIMATE.start_main_~MAX~6) (<= (+ ULTIMATE.start_main_~i~6 1) ULTIMATE.start_main_~MAX~6))} assume !(main_~i~6 < main_~MAX~6);main_~str1~6 := main_~str1~6[main_~MAX~6 - 1 := 0];main_~j~6 := 0;main_~i~6 := main_~MAX~6 - 1; {7931#(= (+ ULTIMATE.start_main_~j~6 17) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:59:32,804 INFO L273 TraceCheckUtils]: 19: Hoare triple {7931#(= (+ ULTIMATE.start_main_~j~6 17) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {7932#(= (+ ULTIMATE.start_main_~j~6 16) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:59:32,805 INFO L273 TraceCheckUtils]: 20: Hoare triple {7932#(= (+ ULTIMATE.start_main_~j~6 16) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {7933#(= (+ ULTIMATE.start_main_~j~6 15) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:59:32,806 INFO L273 TraceCheckUtils]: 21: Hoare triple {7933#(= (+ ULTIMATE.start_main_~j~6 15) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {7934#(= (+ ULTIMATE.start_main_~j~6 14) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:59:32,807 INFO L273 TraceCheckUtils]: 22: Hoare triple {7934#(= (+ ULTIMATE.start_main_~j~6 14) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {7935#(= (+ ULTIMATE.start_main_~j~6 13) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:59:32,808 INFO L273 TraceCheckUtils]: 23: Hoare triple {7935#(= (+ ULTIMATE.start_main_~j~6 13) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {7936#(= (+ ULTIMATE.start_main_~j~6 12) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:59:32,809 INFO L273 TraceCheckUtils]: 24: Hoare triple {7936#(= (+ ULTIMATE.start_main_~j~6 12) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {7937#(= (+ ULTIMATE.start_main_~j~6 11) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:59:32,823 INFO L273 TraceCheckUtils]: 25: Hoare triple {7937#(= (+ ULTIMATE.start_main_~j~6 11) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {7938#(= (+ ULTIMATE.start_main_~j~6 10) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:59:32,824 INFO L273 TraceCheckUtils]: 26: Hoare triple {7938#(= (+ ULTIMATE.start_main_~j~6 10) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {7939#(= (+ ULTIMATE.start_main_~j~6 9) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:59:32,824 INFO L273 TraceCheckUtils]: 27: Hoare triple {7939#(= (+ ULTIMATE.start_main_~j~6 9) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {7940#(= (+ ULTIMATE.start_main_~j~6 8) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:59:32,825 INFO L273 TraceCheckUtils]: 28: Hoare triple {7940#(= (+ ULTIMATE.start_main_~j~6 8) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {7941#(= (+ ULTIMATE.start_main_~j~6 7) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:59:32,826 INFO L273 TraceCheckUtils]: 29: Hoare triple {7941#(= (+ ULTIMATE.start_main_~j~6 7) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {7942#(= (+ ULTIMATE.start_main_~j~6 6) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:59:32,826 INFO L273 TraceCheckUtils]: 30: Hoare triple {7942#(= (+ ULTIMATE.start_main_~j~6 6) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {7943#(= (+ ULTIMATE.start_main_~j~6 5) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:59:32,827 INFO L273 TraceCheckUtils]: 31: Hoare triple {7943#(= (+ ULTIMATE.start_main_~j~6 5) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {7944#(= (+ ULTIMATE.start_main_~j~6 4) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:59:32,828 INFO L273 TraceCheckUtils]: 32: Hoare triple {7944#(= (+ ULTIMATE.start_main_~j~6 4) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {7945#(= (+ ULTIMATE.start_main_~j~6 3) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:59:32,829 INFO L273 TraceCheckUtils]: 33: Hoare triple {7945#(= (+ ULTIMATE.start_main_~j~6 3) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {7946#(= (+ ULTIMATE.start_main_~j~6 2) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:59:32,830 INFO L273 TraceCheckUtils]: 34: Hoare triple {7946#(= (+ ULTIMATE.start_main_~j~6 2) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {7947#(= (+ ULTIMATE.start_main_~j~6 1) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:59:32,831 INFO L273 TraceCheckUtils]: 35: Hoare triple {7947#(= (+ ULTIMATE.start_main_~j~6 1) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {7948#(= (select ULTIMATE.start_main_~str1~6 0) (select ULTIMATE.start_main_~str2~6 (+ ULTIMATE.start_main_~MAX~6 (- 1))))} is VALID [2019-01-31 14:59:32,832 INFO L273 TraceCheckUtils]: 36: Hoare triple {7948#(= (select ULTIMATE.start_main_~str1~6 0) (select ULTIMATE.start_main_~str2~6 (+ ULTIMATE.start_main_~MAX~6 (- 1))))} assume !(main_~i~6 >= 0);main_~j~6 := main_~MAX~6 - 1;main_~i~6 := 0;assume !!(main_~i~6 < main_~MAX~6);__VERIFIER_assert_#in~cond := (if main_~str1~6[main_~i~6] == main_~str2~6[main_~j~6] then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond;assume __VERIFIER_assert_~cond == 0;assume !false; {7912#false} is VALID [2019-01-31 14:59:32,832 INFO L273 TraceCheckUtils]: 37: Hoare triple {7912#false} assume !false; {7912#false} is VALID [2019-01-31 14:59:32,836 INFO L134 CoverageAnalysis]: Checked inductivity of 306 backedges. 0 proven. 306 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-31 14:59:32,836 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-31 14:59:32,836 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-01-31 14:59:32,836 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-01-31 14:59:32,836 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-01-31 14:59:32,837 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-31 14:59:32,837 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 26 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 26 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-01-31 14:59:32,845 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-31 14:59:32,845 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2019-01-31 14:59:32,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-31 14:59:32,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-31 14:59:32,904 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-31 14:59:34,174 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2019-01-31 14:59:34,176 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-01-31 14:59:34,191 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-31 14:59:34,192 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:15, output treesize:14 [2019-01-31 14:59:34,193 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-01-31 14:59:34,193 WARN L398 uantifierElimination]: Input elimination task: ∃ [v_ULTIMATE.start_main_~str2~6_223]. (and (= (store v_ULTIMATE.start_main_~str2~6_223 16 (select ULTIMATE.start_main_~str1~6 0)) ULTIMATE.start_main_~str2~6) (<= 17 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 17)) [2019-01-31 14:59:34,194 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= (select ULTIMATE.start_main_~str2~6 16) (select ULTIMATE.start_main_~str1~6 0)) (<= 17 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 17)) [2019-01-31 14:59:34,255 INFO L273 TraceCheckUtils]: 0: Hoare triple {7911#true} havoc main_#res;havoc main_#t~nondet0, main_#t~nondet2, main_#t~post1, main_#t~post4, main_#t~post3, main_#t~post6, main_#t~post5, main_~MAX~6, main_~str1~6, main_~str2~6, main_~cont~6, main_~i~6, main_~j~6;main_~MAX~6 := (if main_#t~nondet0 % 4294967296 % 4294967296 <= 2147483647 then main_#t~nondet0 % 4294967296 % 4294967296 else main_#t~nondet0 % 4294967296 % 4294967296 - 4294967296);havoc main_#t~nondet0;havoc main_~str1~6;havoc main_~str2~6;havoc main_~cont~6;havoc main_~i~6;havoc main_~j~6;main_~cont~6 := 0;main_~i~6 := 0; {7913#(and (<= ULTIMATE.start_main_~i~6 0) (<= 0 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:59:34,256 INFO L273 TraceCheckUtils]: 1: Hoare triple {7913#(and (<= ULTIMATE.start_main_~i~6 0) (<= 0 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {7914#(and (<= ULTIMATE.start_main_~i~6 1) (<= 1 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:59:34,256 INFO L273 TraceCheckUtils]: 2: Hoare triple {7914#(and (<= ULTIMATE.start_main_~i~6 1) (<= 1 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {7915#(and (<= ULTIMATE.start_main_~i~6 2) (<= 2 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:59:34,257 INFO L273 TraceCheckUtils]: 3: Hoare triple {7915#(and (<= ULTIMATE.start_main_~i~6 2) (<= 2 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {7916#(and (<= 3 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 3))} is VALID [2019-01-31 14:59:34,258 INFO L273 TraceCheckUtils]: 4: Hoare triple {7916#(and (<= 3 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 3))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {7917#(and (<= ULTIMATE.start_main_~i~6 4) (<= 4 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:59:34,259 INFO L273 TraceCheckUtils]: 5: Hoare triple {7917#(and (<= ULTIMATE.start_main_~i~6 4) (<= 4 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {7918#(and (<= 5 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 5))} is VALID [2019-01-31 14:59:34,260 INFO L273 TraceCheckUtils]: 6: Hoare triple {7918#(and (<= 5 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 5))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {7919#(and (<= ULTIMATE.start_main_~i~6 6) (<= 6 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:59:34,260 INFO L273 TraceCheckUtils]: 7: Hoare triple {7919#(and (<= ULTIMATE.start_main_~i~6 6) (<= 6 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {7920#(and (<= 7 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 7))} is VALID [2019-01-31 14:59:34,261 INFO L273 TraceCheckUtils]: 8: Hoare triple {7920#(and (<= 7 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 7))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {7921#(and (<= ULTIMATE.start_main_~i~6 8) (<= 8 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:59:34,262 INFO L273 TraceCheckUtils]: 9: Hoare triple {7921#(and (<= ULTIMATE.start_main_~i~6 8) (<= 8 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {7922#(and (<= ULTIMATE.start_main_~i~6 9) (<= 9 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:59:34,263 INFO L273 TraceCheckUtils]: 10: Hoare triple {7922#(and (<= ULTIMATE.start_main_~i~6 9) (<= 9 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {7923#(and (<= ULTIMATE.start_main_~i~6 10) (<= 10 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:59:34,264 INFO L273 TraceCheckUtils]: 11: Hoare triple {7923#(and (<= ULTIMATE.start_main_~i~6 10) (<= 10 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {7924#(and (<= 11 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 11))} is VALID [2019-01-31 14:59:34,265 INFO L273 TraceCheckUtils]: 12: Hoare triple {7924#(and (<= 11 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 11))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {7925#(and (<= ULTIMATE.start_main_~i~6 12) (<= 12 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:59:34,266 INFO L273 TraceCheckUtils]: 13: Hoare triple {7925#(and (<= ULTIMATE.start_main_~i~6 12) (<= 12 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {7926#(and (<= ULTIMATE.start_main_~i~6 13) (<= 13 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:59:34,267 INFO L273 TraceCheckUtils]: 14: Hoare triple {7926#(and (<= ULTIMATE.start_main_~i~6 13) (<= 13 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {7927#(and (<= ULTIMATE.start_main_~i~6 14) (<= 14 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:59:34,268 INFO L273 TraceCheckUtils]: 15: Hoare triple {7927#(and (<= ULTIMATE.start_main_~i~6 14) (<= 14 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {7928#(and (<= 15 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 15))} is VALID [2019-01-31 14:59:34,269 INFO L273 TraceCheckUtils]: 16: Hoare triple {7928#(and (<= 15 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 15))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {8000#(and (<= 16 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 16))} is VALID [2019-01-31 14:59:34,270 INFO L273 TraceCheckUtils]: 17: Hoare triple {8000#(and (<= 16 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 16))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {8004#(and (<= 17 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~i~6 17))} is VALID [2019-01-31 14:59:34,271 INFO L273 TraceCheckUtils]: 18: Hoare triple {8004#(and (<= 17 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~i~6 17))} assume !(main_~i~6 < main_~MAX~6);main_~str1~6 := main_~str1~6[main_~MAX~6 - 1 := 0];main_~j~6 := 0;main_~i~6 := main_~MAX~6 - 1; {8008#(and (= ULTIMATE.start_main_~j~6 0) (<= 17 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 17))} is VALID [2019-01-31 14:59:34,272 INFO L273 TraceCheckUtils]: 19: Hoare triple {8008#(and (= ULTIMATE.start_main_~j~6 0) (<= 17 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 17))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {8012#(and (= ULTIMATE.start_main_~j~6 1) (<= 17 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 17))} is VALID [2019-01-31 14:59:34,273 INFO L273 TraceCheckUtils]: 20: Hoare triple {8012#(and (= ULTIMATE.start_main_~j~6 1) (<= 17 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 17))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {8016#(and (<= 17 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 17) (= ULTIMATE.start_main_~j~6 2))} is VALID [2019-01-31 14:59:34,274 INFO L273 TraceCheckUtils]: 21: Hoare triple {8016#(and (<= 17 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 17) (= ULTIMATE.start_main_~j~6 2))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {8020#(and (<= 17 ULTIMATE.start_main_~MAX~6) (= ULTIMATE.start_main_~j~6 3) (<= ULTIMATE.start_main_~MAX~6 17))} is VALID [2019-01-31 14:59:34,274 INFO L273 TraceCheckUtils]: 22: Hoare triple {8020#(and (<= 17 ULTIMATE.start_main_~MAX~6) (= ULTIMATE.start_main_~j~6 3) (<= ULTIMATE.start_main_~MAX~6 17))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {8024#(and (= ULTIMATE.start_main_~j~6 4) (<= 17 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 17))} is VALID [2019-01-31 14:59:34,275 INFO L273 TraceCheckUtils]: 23: Hoare triple {8024#(and (= ULTIMATE.start_main_~j~6 4) (<= 17 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 17))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {8028#(and (= ULTIMATE.start_main_~j~6 5) (<= 17 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 17))} is VALID [2019-01-31 14:59:34,276 INFO L273 TraceCheckUtils]: 24: Hoare triple {8028#(and (= ULTIMATE.start_main_~j~6 5) (<= 17 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 17))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {8032#(and (<= 17 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 17) (= ULTIMATE.start_main_~j~6 6))} is VALID [2019-01-31 14:59:34,277 INFO L273 TraceCheckUtils]: 25: Hoare triple {8032#(and (<= 17 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 17) (= ULTIMATE.start_main_~j~6 6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {8036#(and (= ULTIMATE.start_main_~j~6 7) (<= 17 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 17))} is VALID [2019-01-31 14:59:34,278 INFO L273 TraceCheckUtils]: 26: Hoare triple {8036#(and (= ULTIMATE.start_main_~j~6 7) (<= 17 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 17))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {8040#(and (= ULTIMATE.start_main_~j~6 8) (<= 17 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 17))} is VALID [2019-01-31 14:59:34,279 INFO L273 TraceCheckUtils]: 27: Hoare triple {8040#(and (= ULTIMATE.start_main_~j~6 8) (<= 17 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 17))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {8044#(and (= ULTIMATE.start_main_~j~6 9) (<= 17 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 17))} is VALID [2019-01-31 14:59:34,279 INFO L273 TraceCheckUtils]: 28: Hoare triple {8044#(and (= ULTIMATE.start_main_~j~6 9) (<= 17 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 17))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {8048#(and (= ULTIMATE.start_main_~j~6 10) (<= 17 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 17))} is VALID [2019-01-31 14:59:34,280 INFO L273 TraceCheckUtils]: 29: Hoare triple {8048#(and (= ULTIMATE.start_main_~j~6 10) (<= 17 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 17))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {8052#(and (<= 17 ULTIMATE.start_main_~MAX~6) (= ULTIMATE.start_main_~j~6 11) (<= ULTIMATE.start_main_~MAX~6 17))} is VALID [2019-01-31 14:59:34,281 INFO L273 TraceCheckUtils]: 30: Hoare triple {8052#(and (<= 17 ULTIMATE.start_main_~MAX~6) (= ULTIMATE.start_main_~j~6 11) (<= ULTIMATE.start_main_~MAX~6 17))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {8056#(and (= ULTIMATE.start_main_~j~6 12) (<= 17 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 17))} is VALID [2019-01-31 14:59:34,282 INFO L273 TraceCheckUtils]: 31: Hoare triple {8056#(and (= ULTIMATE.start_main_~j~6 12) (<= 17 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 17))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {8060#(and (= ULTIMATE.start_main_~j~6 13) (<= 17 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 17))} is VALID [2019-01-31 14:59:34,282 INFO L273 TraceCheckUtils]: 32: Hoare triple {8060#(and (= ULTIMATE.start_main_~j~6 13) (<= 17 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 17))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {8064#(and (= ULTIMATE.start_main_~j~6 14) (<= 17 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 17))} is VALID [2019-01-31 14:59:34,283 INFO L273 TraceCheckUtils]: 33: Hoare triple {8064#(and (= ULTIMATE.start_main_~j~6 14) (<= 17 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 17))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {8068#(and (<= 17 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 17) (= ULTIMATE.start_main_~j~6 15))} is VALID [2019-01-31 14:59:34,284 INFO L273 TraceCheckUtils]: 34: Hoare triple {8068#(and (<= 17 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 17) (= ULTIMATE.start_main_~j~6 15))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {8072#(and (= ULTIMATE.start_main_~j~6 16) (<= 17 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 17))} is VALID [2019-01-31 14:59:34,285 INFO L273 TraceCheckUtils]: 35: Hoare triple {8072#(and (= ULTIMATE.start_main_~j~6 16) (<= 17 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 17))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {8076#(and (= (select ULTIMATE.start_main_~str2~6 16) (select ULTIMATE.start_main_~str1~6 0)) (<= 17 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 17))} is VALID [2019-01-31 14:59:34,286 INFO L273 TraceCheckUtils]: 36: Hoare triple {8076#(and (= (select ULTIMATE.start_main_~str2~6 16) (select ULTIMATE.start_main_~str1~6 0)) (<= 17 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 17))} assume !(main_~i~6 >= 0);main_~j~6 := main_~MAX~6 - 1;main_~i~6 := 0;assume !!(main_~i~6 < main_~MAX~6);__VERIFIER_assert_#in~cond := (if main_~str1~6[main_~i~6] == main_~str2~6[main_~j~6] then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond;assume __VERIFIER_assert_~cond == 0;assume !false; {7912#false} is VALID [2019-01-31 14:59:34,286 INFO L273 TraceCheckUtils]: 37: Hoare triple {7912#false} assume !false; {7912#false} is VALID [2019-01-31 14:59:34,290 INFO L134 CoverageAnalysis]: Checked inductivity of 306 backedges. 0 proven. 306 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-31 14:59:34,290 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2019-01-31 14:59:34,320 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 5 [2019-01-31 14:59:34,322 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-01-31 14:59:34,326 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-31 14:59:34,326 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:14, output treesize:5 [2019-01-31 14:59:34,328 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-01-31 14:59:34,328 WARN L398 uantifierElimination]: Input elimination task: ∀ [ULTIMATE.start_main_~str2~6, ULTIMATE.start_main_~str1~6]. (let ((.cse0 (select ULTIMATE.start_main_~str1~6 0))) (= .cse0 (select (store ULTIMATE.start_main_~str2~6 ULTIMATE.start_main_~j~6 .cse0) (+ ULTIMATE.start_main_~MAX~6 (- 1))))) [2019-01-31 14:59:34,328 WARN L399 uantifierElimination]: ElimStorePlain result: ∀ []. (= (+ ULTIMATE.start_main_~j~6 1) ULTIMATE.start_main_~MAX~6) [2019-01-31 14:59:34,716 INFO L273 TraceCheckUtils]: 37: Hoare triple {7912#false} assume !false; {7912#false} is VALID [2019-01-31 14:59:34,717 INFO L273 TraceCheckUtils]: 36: Hoare triple {7948#(= (select ULTIMATE.start_main_~str1~6 0) (select ULTIMATE.start_main_~str2~6 (+ ULTIMATE.start_main_~MAX~6 (- 1))))} assume !(main_~i~6 >= 0);main_~j~6 := main_~MAX~6 - 1;main_~i~6 := 0;assume !!(main_~i~6 < main_~MAX~6);__VERIFIER_assert_#in~cond := (if main_~str1~6[main_~i~6] == main_~str2~6[main_~j~6] then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond;assume __VERIFIER_assert_~cond == 0;assume !false; {7912#false} is VALID [2019-01-31 14:59:34,718 INFO L273 TraceCheckUtils]: 35: Hoare triple {7947#(= (+ ULTIMATE.start_main_~j~6 1) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {7948#(= (select ULTIMATE.start_main_~str1~6 0) (select ULTIMATE.start_main_~str2~6 (+ ULTIMATE.start_main_~MAX~6 (- 1))))} is VALID [2019-01-31 14:59:34,718 INFO L273 TraceCheckUtils]: 34: Hoare triple {7946#(= (+ ULTIMATE.start_main_~j~6 2) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {7947#(= (+ ULTIMATE.start_main_~j~6 1) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:59:34,719 INFO L273 TraceCheckUtils]: 33: Hoare triple {7945#(= (+ ULTIMATE.start_main_~j~6 3) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {7946#(= (+ ULTIMATE.start_main_~j~6 2) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:59:34,720 INFO L273 TraceCheckUtils]: 32: Hoare triple {7944#(= (+ ULTIMATE.start_main_~j~6 4) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {7945#(= (+ ULTIMATE.start_main_~j~6 3) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:59:34,721 INFO L273 TraceCheckUtils]: 31: Hoare triple {7943#(= (+ ULTIMATE.start_main_~j~6 5) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {7944#(= (+ ULTIMATE.start_main_~j~6 4) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:59:34,722 INFO L273 TraceCheckUtils]: 30: Hoare triple {7942#(= (+ ULTIMATE.start_main_~j~6 6) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {7943#(= (+ ULTIMATE.start_main_~j~6 5) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:59:34,723 INFO L273 TraceCheckUtils]: 29: Hoare triple {7941#(= (+ ULTIMATE.start_main_~j~6 7) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {7942#(= (+ ULTIMATE.start_main_~j~6 6) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:59:34,724 INFO L273 TraceCheckUtils]: 28: Hoare triple {7940#(= (+ ULTIMATE.start_main_~j~6 8) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {7941#(= (+ ULTIMATE.start_main_~j~6 7) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:59:34,725 INFO L273 TraceCheckUtils]: 27: Hoare triple {7939#(= (+ ULTIMATE.start_main_~j~6 9) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {7940#(= (+ ULTIMATE.start_main_~j~6 8) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:59:34,726 INFO L273 TraceCheckUtils]: 26: Hoare triple {7938#(= (+ ULTIMATE.start_main_~j~6 10) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {7939#(= (+ ULTIMATE.start_main_~j~6 9) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:59:34,727 INFO L273 TraceCheckUtils]: 25: Hoare triple {7937#(= (+ ULTIMATE.start_main_~j~6 11) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {7938#(= (+ ULTIMATE.start_main_~j~6 10) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:59:34,728 INFO L273 TraceCheckUtils]: 24: Hoare triple {7936#(= (+ ULTIMATE.start_main_~j~6 12) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {7937#(= (+ ULTIMATE.start_main_~j~6 11) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:59:34,729 INFO L273 TraceCheckUtils]: 23: Hoare triple {7935#(= (+ ULTIMATE.start_main_~j~6 13) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {7936#(= (+ ULTIMATE.start_main_~j~6 12) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:59:34,730 INFO L273 TraceCheckUtils]: 22: Hoare triple {7934#(= (+ ULTIMATE.start_main_~j~6 14) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {7935#(= (+ ULTIMATE.start_main_~j~6 13) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:59:34,730 INFO L273 TraceCheckUtils]: 21: Hoare triple {7933#(= (+ ULTIMATE.start_main_~j~6 15) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {7934#(= (+ ULTIMATE.start_main_~j~6 14) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:59:34,731 INFO L273 TraceCheckUtils]: 20: Hoare triple {7932#(= (+ ULTIMATE.start_main_~j~6 16) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {7933#(= (+ ULTIMATE.start_main_~j~6 15) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:59:34,732 INFO L273 TraceCheckUtils]: 19: Hoare triple {7931#(= (+ ULTIMATE.start_main_~j~6 17) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {7932#(= (+ ULTIMATE.start_main_~j~6 16) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:59:34,733 INFO L273 TraceCheckUtils]: 18: Hoare triple {7930#(or (= 17 ULTIMATE.start_main_~MAX~6) (<= (+ ULTIMATE.start_main_~i~6 1) ULTIMATE.start_main_~MAX~6))} assume !(main_~i~6 < main_~MAX~6);main_~str1~6 := main_~str1~6[main_~MAX~6 - 1 := 0];main_~j~6 := 0;main_~i~6 := main_~MAX~6 - 1; {7931#(= (+ ULTIMATE.start_main_~j~6 17) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:59:34,734 INFO L273 TraceCheckUtils]: 17: Hoare triple {8000#(and (<= 16 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 16))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {7930#(or (= 17 ULTIMATE.start_main_~MAX~6) (<= (+ ULTIMATE.start_main_~i~6 1) ULTIMATE.start_main_~MAX~6))} is VALID [2019-01-31 14:59:34,735 INFO L273 TraceCheckUtils]: 16: Hoare triple {7928#(and (<= 15 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 15))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {8000#(and (<= 16 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 16))} is VALID [2019-01-31 14:59:34,736 INFO L273 TraceCheckUtils]: 15: Hoare triple {7927#(and (<= ULTIMATE.start_main_~i~6 14) (<= 14 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {7928#(and (<= 15 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 15))} is VALID [2019-01-31 14:59:34,737 INFO L273 TraceCheckUtils]: 14: Hoare triple {7926#(and (<= ULTIMATE.start_main_~i~6 13) (<= 13 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {7927#(and (<= ULTIMATE.start_main_~i~6 14) (<= 14 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:59:34,738 INFO L273 TraceCheckUtils]: 13: Hoare triple {7925#(and (<= ULTIMATE.start_main_~i~6 12) (<= 12 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {7926#(and (<= ULTIMATE.start_main_~i~6 13) (<= 13 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:59:34,739 INFO L273 TraceCheckUtils]: 12: Hoare triple {7924#(and (<= 11 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 11))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {7925#(and (<= ULTIMATE.start_main_~i~6 12) (<= 12 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:59:34,740 INFO L273 TraceCheckUtils]: 11: Hoare triple {7923#(and (<= ULTIMATE.start_main_~i~6 10) (<= 10 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {7924#(and (<= 11 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 11))} is VALID [2019-01-31 14:59:34,741 INFO L273 TraceCheckUtils]: 10: Hoare triple {7922#(and (<= ULTIMATE.start_main_~i~6 9) (<= 9 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {7923#(and (<= ULTIMATE.start_main_~i~6 10) (<= 10 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:59:34,742 INFO L273 TraceCheckUtils]: 9: Hoare triple {7921#(and (<= ULTIMATE.start_main_~i~6 8) (<= 8 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {7922#(and (<= ULTIMATE.start_main_~i~6 9) (<= 9 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:59:34,743 INFO L273 TraceCheckUtils]: 8: Hoare triple {7920#(and (<= 7 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 7))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {7921#(and (<= ULTIMATE.start_main_~i~6 8) (<= 8 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:59:34,744 INFO L273 TraceCheckUtils]: 7: Hoare triple {7919#(and (<= ULTIMATE.start_main_~i~6 6) (<= 6 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {7920#(and (<= 7 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 7))} is VALID [2019-01-31 14:59:34,745 INFO L273 TraceCheckUtils]: 6: Hoare triple {7918#(and (<= 5 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 5))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {7919#(and (<= ULTIMATE.start_main_~i~6 6) (<= 6 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:59:34,746 INFO L273 TraceCheckUtils]: 5: Hoare triple {7917#(and (<= ULTIMATE.start_main_~i~6 4) (<= 4 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {7918#(and (<= 5 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 5))} is VALID [2019-01-31 14:59:34,747 INFO L273 TraceCheckUtils]: 4: Hoare triple {7916#(and (<= 3 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 3))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {7917#(and (<= ULTIMATE.start_main_~i~6 4) (<= 4 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:59:34,748 INFO L273 TraceCheckUtils]: 3: Hoare triple {7915#(and (<= ULTIMATE.start_main_~i~6 2) (<= 2 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {7916#(and (<= 3 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 3))} is VALID [2019-01-31 14:59:34,749 INFO L273 TraceCheckUtils]: 2: Hoare triple {7914#(and (<= ULTIMATE.start_main_~i~6 1) (<= 1 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {7915#(and (<= ULTIMATE.start_main_~i~6 2) (<= 2 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:59:34,750 INFO L273 TraceCheckUtils]: 1: Hoare triple {7913#(and (<= ULTIMATE.start_main_~i~6 0) (<= 0 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {7914#(and (<= ULTIMATE.start_main_~i~6 1) (<= 1 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:59:34,750 INFO L273 TraceCheckUtils]: 0: Hoare triple {7911#true} havoc main_#res;havoc main_#t~nondet0, main_#t~nondet2, main_#t~post1, main_#t~post4, main_#t~post3, main_#t~post6, main_#t~post5, main_~MAX~6, main_~str1~6, main_~str2~6, main_~cont~6, main_~i~6, main_~j~6;main_~MAX~6 := (if main_#t~nondet0 % 4294967296 % 4294967296 <= 2147483647 then main_#t~nondet0 % 4294967296 % 4294967296 else main_#t~nondet0 % 4294967296 % 4294967296 - 4294967296);havoc main_#t~nondet0;havoc main_~str1~6;havoc main_~str2~6;havoc main_~cont~6;havoc main_~i~6;havoc main_~j~6;main_~cont~6 := 0;main_~i~6 := 0; {7913#(and (<= ULTIMATE.start_main_~i~6 0) (<= 0 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:59:34,753 INFO L134 CoverageAnalysis]: Checked inductivity of 306 backedges. 0 proven. 306 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-31 14:59:34,772 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-01-31 14:59:34,772 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [37, 37, 37] total 57 [2019-01-31 14:59:34,772 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-01-31 14:59:34,773 INFO L78 Accepts]: Start accepts. Automaton has 58 states. Word has length 38 [2019-01-31 14:59:34,773 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-01-31 14:59:34,773 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 58 states. [2019-01-31 14:59:34,829 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 59 edges. 59 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-01-31 14:59:34,829 INFO L459 AbstractCegarLoop]: Interpolant automaton has 58 states [2019-01-31 14:59:34,829 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 58 interpolants. [2019-01-31 14:59:34,830 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=169, Invalid=3137, Unknown=0, NotChecked=0, Total=3306 [2019-01-31 14:59:34,830 INFO L87 Difference]: Start difference. First operand 39 states and 40 transitions. Second operand 58 states. [2019-01-31 14:59:40,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 14:59:40,975 INFO L93 Difference]: Finished difference Result 60 states and 62 transitions. [2019-01-31 14:59:40,976 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2019-01-31 14:59:40,976 INFO L78 Accepts]: Start accepts. Automaton has 58 states. Word has length 38 [2019-01-31 14:59:40,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-31 14:59:40,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2019-01-31 14:59:40,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 46 transitions. [2019-01-31 14:59:40,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2019-01-31 14:59:40,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 46 transitions. [2019-01-31 14:59:40,977 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 41 states and 46 transitions. [2019-01-31 14:59:41,028 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 46 edges. 46 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-01-31 14:59:41,029 INFO L225 Difference]: With dead ends: 60 [2019-01-31 14:59:41,029 INFO L226 Difference]: Without dead ends: 40 [2019-01-31 14:59:41,031 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 43 SyntacticMatches, 12 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 921 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=358, Invalid=5648, Unknown=0, NotChecked=0, Total=6006 [2019-01-31 14:59:41,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2019-01-31 14:59:41,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2019-01-31 14:59:41,866 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-01-31 14:59:41,866 INFO L82 GeneralOperation]: Start isEquivalent. First operand 40 states. Second operand 40 states. [2019-01-31 14:59:41,866 INFO L74 IsIncluded]: Start isIncluded. First operand 40 states. Second operand 40 states. [2019-01-31 14:59:41,866 INFO L87 Difference]: Start difference. First operand 40 states. Second operand 40 states. [2019-01-31 14:59:41,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 14:59:41,867 INFO L93 Difference]: Finished difference Result 40 states and 41 transitions. [2019-01-31 14:59:41,867 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 41 transitions. [2019-01-31 14:59:41,868 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-31 14:59:41,868 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-01-31 14:59:41,868 INFO L74 IsIncluded]: Start isIncluded. First operand 40 states. Second operand 40 states. [2019-01-31 14:59:41,868 INFO L87 Difference]: Start difference. First operand 40 states. Second operand 40 states. [2019-01-31 14:59:41,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 14:59:41,869 INFO L93 Difference]: Finished difference Result 40 states and 41 transitions. [2019-01-31 14:59:41,869 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 41 transitions. [2019-01-31 14:59:41,869 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-31 14:59:41,869 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-01-31 14:59:41,869 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-01-31 14:59:41,869 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-01-31 14:59:41,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2019-01-31 14:59:41,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 41 transitions. [2019-01-31 14:59:41,870 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 41 transitions. Word has length 38 [2019-01-31 14:59:41,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-31 14:59:41,870 INFO L480 AbstractCegarLoop]: Abstraction has 40 states and 41 transitions. [2019-01-31 14:59:41,870 INFO L481 AbstractCegarLoop]: Interpolant automaton has 58 states. [2019-01-31 14:59:41,870 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 41 transitions. [2019-01-31 14:59:41,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2019-01-31 14:59:41,871 INFO L394 BasicCegarLoop]: Found error trace [2019-01-31 14:59:41,871 INFO L402 BasicCegarLoop]: trace histogram [18, 17, 1, 1, 1, 1] [2019-01-31 14:59:41,871 INFO L423 AbstractCegarLoop]: === Iteration 28 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2019-01-31 14:59:41,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-31 14:59:41,871 INFO L82 PathProgramCache]: Analyzing trace with hash 536887468, now seen corresponding path program 26 times [2019-01-31 14:59:41,871 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-01-31 14:59:41,872 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-31 14:59:41,872 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-31 14:59:41,872 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-31 14:59:41,872 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-01-31 14:59:41,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-31 14:59:42,248 INFO L273 TraceCheckUtils]: 0: Hoare triple {8508#true} havoc main_#res;havoc main_#t~nondet0, main_#t~nondet2, main_#t~post1, main_#t~post4, main_#t~post3, main_#t~post6, main_#t~post5, main_~MAX~6, main_~str1~6, main_~str2~6, main_~cont~6, main_~i~6, main_~j~6;main_~MAX~6 := (if main_#t~nondet0 % 4294967296 % 4294967296 <= 2147483647 then main_#t~nondet0 % 4294967296 % 4294967296 else main_#t~nondet0 % 4294967296 % 4294967296 - 4294967296);havoc main_#t~nondet0;havoc main_~str1~6;havoc main_~str2~6;havoc main_~cont~6;havoc main_~i~6;havoc main_~j~6;main_~cont~6 := 0;main_~i~6 := 0; {8510#(<= 0 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:59:42,249 INFO L273 TraceCheckUtils]: 1: Hoare triple {8510#(<= 0 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {8511#(<= 1 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:59:42,250 INFO L273 TraceCheckUtils]: 2: Hoare triple {8511#(<= 1 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {8512#(<= 2 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:59:42,251 INFO L273 TraceCheckUtils]: 3: Hoare triple {8512#(<= 2 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {8513#(<= 3 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:59:42,252 INFO L273 TraceCheckUtils]: 4: Hoare triple {8513#(<= 3 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {8514#(<= 4 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:59:42,253 INFO L273 TraceCheckUtils]: 5: Hoare triple {8514#(<= 4 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {8515#(<= 5 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:59:42,254 INFO L273 TraceCheckUtils]: 6: Hoare triple {8515#(<= 5 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {8516#(<= 6 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:59:42,254 INFO L273 TraceCheckUtils]: 7: Hoare triple {8516#(<= 6 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {8517#(<= 7 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:59:42,255 INFO L273 TraceCheckUtils]: 8: Hoare triple {8517#(<= 7 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {8518#(<= 8 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:59:42,256 INFO L273 TraceCheckUtils]: 9: Hoare triple {8518#(<= 8 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {8519#(<= 9 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:59:42,257 INFO L273 TraceCheckUtils]: 10: Hoare triple {8519#(<= 9 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {8520#(<= 10 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:59:42,258 INFO L273 TraceCheckUtils]: 11: Hoare triple {8520#(<= 10 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {8521#(<= 11 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:59:42,259 INFO L273 TraceCheckUtils]: 12: Hoare triple {8521#(<= 11 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {8522#(<= 12 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:59:42,260 INFO L273 TraceCheckUtils]: 13: Hoare triple {8522#(<= 12 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {8523#(<= 13 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:59:42,261 INFO L273 TraceCheckUtils]: 14: Hoare triple {8523#(<= 13 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {8524#(<= 14 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:59:42,262 INFO L273 TraceCheckUtils]: 15: Hoare triple {8524#(<= 14 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {8525#(<= 15 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:59:42,263 INFO L273 TraceCheckUtils]: 16: Hoare triple {8525#(<= 15 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {8526#(<= 16 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:59:42,263 INFO L273 TraceCheckUtils]: 17: Hoare triple {8526#(<= 16 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {8527#(<= 17 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:59:42,264 INFO L273 TraceCheckUtils]: 18: Hoare triple {8527#(<= 17 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {8528#(<= 18 ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:59:42,265 INFO L273 TraceCheckUtils]: 19: Hoare triple {8528#(<= 18 ULTIMATE.start_main_~MAX~6)} assume !(main_~i~6 < main_~MAX~6);main_~str1~6 := main_~str1~6[main_~MAX~6 - 1 := 0];main_~j~6 := 0;main_~i~6 := main_~MAX~6 - 1; {8527#(<= 17 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:59:42,266 INFO L273 TraceCheckUtils]: 20: Hoare triple {8527#(<= 17 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {8526#(<= 16 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:59:42,267 INFO L273 TraceCheckUtils]: 21: Hoare triple {8526#(<= 16 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {8525#(<= 15 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:59:42,268 INFO L273 TraceCheckUtils]: 22: Hoare triple {8525#(<= 15 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {8524#(<= 14 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:59:42,269 INFO L273 TraceCheckUtils]: 23: Hoare triple {8524#(<= 14 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {8523#(<= 13 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:59:42,270 INFO L273 TraceCheckUtils]: 24: Hoare triple {8523#(<= 13 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {8522#(<= 12 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:59:42,270 INFO L273 TraceCheckUtils]: 25: Hoare triple {8522#(<= 12 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {8521#(<= 11 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:59:42,271 INFO L273 TraceCheckUtils]: 26: Hoare triple {8521#(<= 11 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {8520#(<= 10 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:59:42,272 INFO L273 TraceCheckUtils]: 27: Hoare triple {8520#(<= 10 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {8519#(<= 9 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:59:42,273 INFO L273 TraceCheckUtils]: 28: Hoare triple {8519#(<= 9 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {8518#(<= 8 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:59:42,274 INFO L273 TraceCheckUtils]: 29: Hoare triple {8518#(<= 8 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {8517#(<= 7 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:59:42,275 INFO L273 TraceCheckUtils]: 30: Hoare triple {8517#(<= 7 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {8516#(<= 6 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:59:42,276 INFO L273 TraceCheckUtils]: 31: Hoare triple {8516#(<= 6 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {8515#(<= 5 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:59:42,276 INFO L273 TraceCheckUtils]: 32: Hoare triple {8515#(<= 5 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {8514#(<= 4 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:59:42,277 INFO L273 TraceCheckUtils]: 33: Hoare triple {8514#(<= 4 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {8513#(<= 3 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:59:42,278 INFO L273 TraceCheckUtils]: 34: Hoare triple {8513#(<= 3 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {8512#(<= 2 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:59:42,279 INFO L273 TraceCheckUtils]: 35: Hoare triple {8512#(<= 2 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {8511#(<= 1 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:59:42,280 INFO L273 TraceCheckUtils]: 36: Hoare triple {8511#(<= 1 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {8510#(<= 0 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:59:42,280 INFO L273 TraceCheckUtils]: 37: Hoare triple {8510#(<= 0 ULTIMATE.start_main_~i~6)} assume !(main_~i~6 >= 0);main_~j~6 := main_~MAX~6 - 1;main_~i~6 := 0;assume !!(main_~i~6 < main_~MAX~6);__VERIFIER_assert_#in~cond := (if main_~str1~6[main_~i~6] == main_~str2~6[main_~j~6] then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond;assume __VERIFIER_assert_~cond == 0;assume !false; {8509#false} is VALID [2019-01-31 14:59:42,281 INFO L273 TraceCheckUtils]: 38: Hoare triple {8509#false} assume !false; {8509#false} is VALID [2019-01-31 14:59:42,283 INFO L134 CoverageAnalysis]: Checked inductivity of 324 backedges. 153 proven. 171 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-31 14:59:42,283 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-31 14:59:42,283 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-01-31 14:59:42,283 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-01-31 14:59:42,284 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-01-31 14:59:42,284 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-31 14:59:42,284 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 27 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 27 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-01-31 14:59:42,293 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2019-01-31 14:59:42,293 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST2 (IT: FPandBP) [2019-01-31 14:59:42,353 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 10 check-sat command(s) [2019-01-31 14:59:42,353 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-01-31 14:59:42,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-31 14:59:42,370 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-31 14:59:42,549 INFO L273 TraceCheckUtils]: 0: Hoare triple {8508#true} havoc main_#res;havoc main_#t~nondet0, main_#t~nondet2, main_#t~post1, main_#t~post4, main_#t~post3, main_#t~post6, main_#t~post5, main_~MAX~6, main_~str1~6, main_~str2~6, main_~cont~6, main_~i~6, main_~j~6;main_~MAX~6 := (if main_#t~nondet0 % 4294967296 % 4294967296 <= 2147483647 then main_#t~nondet0 % 4294967296 % 4294967296 else main_#t~nondet0 % 4294967296 % 4294967296 - 4294967296);havoc main_#t~nondet0;havoc main_~str1~6;havoc main_~str2~6;havoc main_~cont~6;havoc main_~i~6;havoc main_~j~6;main_~cont~6 := 0;main_~i~6 := 0; {8510#(<= 0 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:59:42,550 INFO L273 TraceCheckUtils]: 1: Hoare triple {8510#(<= 0 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {8511#(<= 1 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:59:42,551 INFO L273 TraceCheckUtils]: 2: Hoare triple {8511#(<= 1 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {8512#(<= 2 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:59:42,552 INFO L273 TraceCheckUtils]: 3: Hoare triple {8512#(<= 2 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {8513#(<= 3 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:59:42,553 INFO L273 TraceCheckUtils]: 4: Hoare triple {8513#(<= 3 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {8514#(<= 4 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:59:42,554 INFO L273 TraceCheckUtils]: 5: Hoare triple {8514#(<= 4 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {8515#(<= 5 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:59:42,555 INFO L273 TraceCheckUtils]: 6: Hoare triple {8515#(<= 5 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {8516#(<= 6 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:59:42,556 INFO L273 TraceCheckUtils]: 7: Hoare triple {8516#(<= 6 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {8517#(<= 7 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:59:42,556 INFO L273 TraceCheckUtils]: 8: Hoare triple {8517#(<= 7 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {8518#(<= 8 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:59:42,557 INFO L273 TraceCheckUtils]: 9: Hoare triple {8518#(<= 8 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {8519#(<= 9 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:59:42,558 INFO L273 TraceCheckUtils]: 10: Hoare triple {8519#(<= 9 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {8520#(<= 10 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:59:42,559 INFO L273 TraceCheckUtils]: 11: Hoare triple {8520#(<= 10 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {8521#(<= 11 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:59:42,560 INFO L273 TraceCheckUtils]: 12: Hoare triple {8521#(<= 11 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {8522#(<= 12 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:59:42,561 INFO L273 TraceCheckUtils]: 13: Hoare triple {8522#(<= 12 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {8523#(<= 13 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:59:42,562 INFO L273 TraceCheckUtils]: 14: Hoare triple {8523#(<= 13 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {8524#(<= 14 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:59:42,563 INFO L273 TraceCheckUtils]: 15: Hoare triple {8524#(<= 14 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {8525#(<= 15 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:59:42,563 INFO L273 TraceCheckUtils]: 16: Hoare triple {8525#(<= 15 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {8526#(<= 16 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:59:42,564 INFO L273 TraceCheckUtils]: 17: Hoare triple {8526#(<= 16 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {8527#(<= 17 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:59:42,565 INFO L273 TraceCheckUtils]: 18: Hoare triple {8527#(<= 17 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {8528#(<= 18 ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:59:42,566 INFO L273 TraceCheckUtils]: 19: Hoare triple {8528#(<= 18 ULTIMATE.start_main_~MAX~6)} assume !(main_~i~6 < main_~MAX~6);main_~str1~6 := main_~str1~6[main_~MAX~6 - 1 := 0];main_~j~6 := 0;main_~i~6 := main_~MAX~6 - 1; {8527#(<= 17 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:59:42,567 INFO L273 TraceCheckUtils]: 20: Hoare triple {8527#(<= 17 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {8526#(<= 16 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:59:42,568 INFO L273 TraceCheckUtils]: 21: Hoare triple {8526#(<= 16 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {8525#(<= 15 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:59:42,569 INFO L273 TraceCheckUtils]: 22: Hoare triple {8525#(<= 15 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {8524#(<= 14 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:59:42,570 INFO L273 TraceCheckUtils]: 23: Hoare triple {8524#(<= 14 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {8523#(<= 13 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:59:42,570 INFO L273 TraceCheckUtils]: 24: Hoare triple {8523#(<= 13 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {8522#(<= 12 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:59:42,571 INFO L273 TraceCheckUtils]: 25: Hoare triple {8522#(<= 12 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {8521#(<= 11 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:59:42,572 INFO L273 TraceCheckUtils]: 26: Hoare triple {8521#(<= 11 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {8520#(<= 10 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:59:42,573 INFO L273 TraceCheckUtils]: 27: Hoare triple {8520#(<= 10 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {8519#(<= 9 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:59:42,574 INFO L273 TraceCheckUtils]: 28: Hoare triple {8519#(<= 9 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {8518#(<= 8 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:59:42,575 INFO L273 TraceCheckUtils]: 29: Hoare triple {8518#(<= 8 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {8517#(<= 7 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:59:42,576 INFO L273 TraceCheckUtils]: 30: Hoare triple {8517#(<= 7 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {8516#(<= 6 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:59:42,577 INFO L273 TraceCheckUtils]: 31: Hoare triple {8516#(<= 6 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {8515#(<= 5 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:59:42,578 INFO L273 TraceCheckUtils]: 32: Hoare triple {8515#(<= 5 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {8514#(<= 4 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:59:42,578 INFO L273 TraceCheckUtils]: 33: Hoare triple {8514#(<= 4 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {8513#(<= 3 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:59:42,579 INFO L273 TraceCheckUtils]: 34: Hoare triple {8513#(<= 3 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {8512#(<= 2 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:59:42,580 INFO L273 TraceCheckUtils]: 35: Hoare triple {8512#(<= 2 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {8511#(<= 1 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:59:42,581 INFO L273 TraceCheckUtils]: 36: Hoare triple {8511#(<= 1 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {8510#(<= 0 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:59:42,582 INFO L273 TraceCheckUtils]: 37: Hoare triple {8510#(<= 0 ULTIMATE.start_main_~i~6)} assume !(main_~i~6 >= 0);main_~j~6 := main_~MAX~6 - 1;main_~i~6 := 0;assume !!(main_~i~6 < main_~MAX~6);__VERIFIER_assert_#in~cond := (if main_~str1~6[main_~i~6] == main_~str2~6[main_~j~6] then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond;assume __VERIFIER_assert_~cond == 0;assume !false; {8509#false} is VALID [2019-01-31 14:59:42,582 INFO L273 TraceCheckUtils]: 38: Hoare triple {8509#false} assume !false; {8509#false} is VALID [2019-01-31 14:59:42,584 INFO L134 CoverageAnalysis]: Checked inductivity of 324 backedges. 153 proven. 171 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-31 14:59:42,584 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2019-01-31 14:59:43,070 INFO L273 TraceCheckUtils]: 38: Hoare triple {8509#false} assume !false; {8509#false} is VALID [2019-01-31 14:59:43,071 INFO L273 TraceCheckUtils]: 37: Hoare triple {8510#(<= 0 ULTIMATE.start_main_~i~6)} assume !(main_~i~6 >= 0);main_~j~6 := main_~MAX~6 - 1;main_~i~6 := 0;assume !!(main_~i~6 < main_~MAX~6);__VERIFIER_assert_#in~cond := (if main_~str1~6[main_~i~6] == main_~str2~6[main_~j~6] then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond;assume __VERIFIER_assert_~cond == 0;assume !false; {8509#false} is VALID [2019-01-31 14:59:43,071 INFO L273 TraceCheckUtils]: 36: Hoare triple {8511#(<= 1 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {8510#(<= 0 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:59:43,072 INFO L273 TraceCheckUtils]: 35: Hoare triple {8512#(<= 2 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {8511#(<= 1 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:59:43,073 INFO L273 TraceCheckUtils]: 34: Hoare triple {8513#(<= 3 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {8512#(<= 2 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:59:43,073 INFO L273 TraceCheckUtils]: 33: Hoare triple {8514#(<= 4 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {8513#(<= 3 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:59:43,074 INFO L273 TraceCheckUtils]: 32: Hoare triple {8515#(<= 5 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {8514#(<= 4 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:59:43,075 INFO L273 TraceCheckUtils]: 31: Hoare triple {8516#(<= 6 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {8515#(<= 5 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:59:43,076 INFO L273 TraceCheckUtils]: 30: Hoare triple {8517#(<= 7 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {8516#(<= 6 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:59:43,077 INFO L273 TraceCheckUtils]: 29: Hoare triple {8518#(<= 8 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {8517#(<= 7 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:59:43,078 INFO L273 TraceCheckUtils]: 28: Hoare triple {8519#(<= 9 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {8518#(<= 8 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:59:43,078 INFO L273 TraceCheckUtils]: 27: Hoare triple {8520#(<= 10 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {8519#(<= 9 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:59:43,079 INFO L273 TraceCheckUtils]: 26: Hoare triple {8521#(<= 11 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {8520#(<= 10 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:59:43,080 INFO L273 TraceCheckUtils]: 25: Hoare triple {8522#(<= 12 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {8521#(<= 11 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:59:43,081 INFO L273 TraceCheckUtils]: 24: Hoare triple {8523#(<= 13 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {8522#(<= 12 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:59:43,082 INFO L273 TraceCheckUtils]: 23: Hoare triple {8524#(<= 14 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {8523#(<= 13 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:59:43,083 INFO L273 TraceCheckUtils]: 22: Hoare triple {8525#(<= 15 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {8524#(<= 14 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:59:43,084 INFO L273 TraceCheckUtils]: 21: Hoare triple {8526#(<= 16 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {8525#(<= 15 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:59:43,085 INFO L273 TraceCheckUtils]: 20: Hoare triple {8527#(<= 17 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {8526#(<= 16 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:59:43,086 INFO L273 TraceCheckUtils]: 19: Hoare triple {8528#(<= 18 ULTIMATE.start_main_~MAX~6)} assume !(main_~i~6 < main_~MAX~6);main_~str1~6 := main_~str1~6[main_~MAX~6 - 1 := 0];main_~j~6 := 0;main_~i~6 := main_~MAX~6 - 1; {8527#(<= 17 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:59:43,087 INFO L273 TraceCheckUtils]: 18: Hoare triple {8527#(<= 17 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {8528#(<= 18 ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:59:43,088 INFO L273 TraceCheckUtils]: 17: Hoare triple {8526#(<= 16 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {8527#(<= 17 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:59:43,088 INFO L273 TraceCheckUtils]: 16: Hoare triple {8525#(<= 15 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {8526#(<= 16 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:59:43,089 INFO L273 TraceCheckUtils]: 15: Hoare triple {8524#(<= 14 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {8525#(<= 15 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:59:43,090 INFO L273 TraceCheckUtils]: 14: Hoare triple {8523#(<= 13 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {8524#(<= 14 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:59:43,091 INFO L273 TraceCheckUtils]: 13: Hoare triple {8522#(<= 12 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {8523#(<= 13 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:59:43,092 INFO L273 TraceCheckUtils]: 12: Hoare triple {8521#(<= 11 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {8522#(<= 12 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:59:43,093 INFO L273 TraceCheckUtils]: 11: Hoare triple {8520#(<= 10 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {8521#(<= 11 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:59:43,094 INFO L273 TraceCheckUtils]: 10: Hoare triple {8519#(<= 9 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {8520#(<= 10 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:59:43,094 INFO L273 TraceCheckUtils]: 9: Hoare triple {8518#(<= 8 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {8519#(<= 9 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:59:43,095 INFO L273 TraceCheckUtils]: 8: Hoare triple {8517#(<= 7 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {8518#(<= 8 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:59:43,096 INFO L273 TraceCheckUtils]: 7: Hoare triple {8516#(<= 6 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {8517#(<= 7 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:59:43,097 INFO L273 TraceCheckUtils]: 6: Hoare triple {8515#(<= 5 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {8516#(<= 6 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:59:43,098 INFO L273 TraceCheckUtils]: 5: Hoare triple {8514#(<= 4 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {8515#(<= 5 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:59:43,099 INFO L273 TraceCheckUtils]: 4: Hoare triple {8513#(<= 3 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {8514#(<= 4 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:59:43,100 INFO L273 TraceCheckUtils]: 3: Hoare triple {8512#(<= 2 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {8513#(<= 3 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:59:43,101 INFO L273 TraceCheckUtils]: 2: Hoare triple {8511#(<= 1 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {8512#(<= 2 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:59:43,101 INFO L273 TraceCheckUtils]: 1: Hoare triple {8510#(<= 0 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {8511#(<= 1 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:59:43,102 INFO L273 TraceCheckUtils]: 0: Hoare triple {8508#true} havoc main_#res;havoc main_#t~nondet0, main_#t~nondet2, main_#t~post1, main_#t~post4, main_#t~post3, main_#t~post6, main_#t~post5, main_~MAX~6, main_~str1~6, main_~str2~6, main_~cont~6, main_~i~6, main_~j~6;main_~MAX~6 := (if main_#t~nondet0 % 4294967296 % 4294967296 <= 2147483647 then main_#t~nondet0 % 4294967296 % 4294967296 else main_#t~nondet0 % 4294967296 % 4294967296 - 4294967296);havoc main_#t~nondet0;havoc main_~str1~6;havoc main_~str2~6;havoc main_~cont~6;havoc main_~i~6;havoc main_~j~6;main_~cont~6 := 0;main_~i~6 := 0; {8510#(<= 0 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 14:59:43,104 INFO L134 CoverageAnalysis]: Checked inductivity of 324 backedges. 153 proven. 171 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-31 14:59:43,124 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-01-31 14:59:43,125 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 20, 20] total 20 [2019-01-31 14:59:43,125 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-01-31 14:59:43,125 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 39 [2019-01-31 14:59:43,125 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-01-31 14:59:43,125 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 21 states. [2019-01-31 14:59:43,168 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 39 edges. 39 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-01-31 14:59:43,168 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2019-01-31 14:59:43,169 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2019-01-31 14:59:43,169 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=192, Invalid=228, Unknown=0, NotChecked=0, Total=420 [2019-01-31 14:59:43,169 INFO L87 Difference]: Start difference. First operand 40 states and 41 transitions. Second operand 21 states. [2019-01-31 14:59:44,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 14:59:44,231 INFO L93 Difference]: Finished difference Result 43 states and 44 transitions. [2019-01-31 14:59:44,232 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2019-01-31 14:59:44,232 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 39 [2019-01-31 14:59:44,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-31 14:59:44,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2019-01-31 14:59:44,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 44 transitions. [2019-01-31 14:59:44,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2019-01-31 14:59:44,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 44 transitions. [2019-01-31 14:59:44,233 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 39 states and 44 transitions. [2019-01-31 14:59:44,289 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 44 edges. 44 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-01-31 14:59:44,290 INFO L225 Difference]: With dead ends: 43 [2019-01-31 14:59:44,290 INFO L226 Difference]: Without dead ends: 41 [2019-01-31 14:59:44,291 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 59 SyntacticMatches, 36 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 612 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=570, Invalid=912, Unknown=0, NotChecked=0, Total=1482 [2019-01-31 14:59:44,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2019-01-31 14:59:44,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2019-01-31 14:59:44,881 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-01-31 14:59:44,881 INFO L82 GeneralOperation]: Start isEquivalent. First operand 41 states. Second operand 41 states. [2019-01-31 14:59:44,881 INFO L74 IsIncluded]: Start isIncluded. First operand 41 states. Second operand 41 states. [2019-01-31 14:59:44,881 INFO L87 Difference]: Start difference. First operand 41 states. Second operand 41 states. [2019-01-31 14:59:44,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 14:59:44,882 INFO L93 Difference]: Finished difference Result 41 states and 42 transitions. [2019-01-31 14:59:44,883 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 42 transitions. [2019-01-31 14:59:44,883 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-31 14:59:44,883 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-01-31 14:59:44,883 INFO L74 IsIncluded]: Start isIncluded. First operand 41 states. Second operand 41 states. [2019-01-31 14:59:44,883 INFO L87 Difference]: Start difference. First operand 41 states. Second operand 41 states. [2019-01-31 14:59:44,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 14:59:44,884 INFO L93 Difference]: Finished difference Result 41 states and 42 transitions. [2019-01-31 14:59:44,884 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 42 transitions. [2019-01-31 14:59:44,884 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-31 14:59:44,884 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-01-31 14:59:44,884 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-01-31 14:59:44,884 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-01-31 14:59:44,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2019-01-31 14:59:44,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 42 transitions. [2019-01-31 14:59:44,885 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 42 transitions. Word has length 39 [2019-01-31 14:59:44,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-31 14:59:44,885 INFO L480 AbstractCegarLoop]: Abstraction has 41 states and 42 transitions. [2019-01-31 14:59:44,885 INFO L481 AbstractCegarLoop]: Interpolant automaton has 21 states. [2019-01-31 14:59:44,885 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 42 transitions. [2019-01-31 14:59:44,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2019-01-31 14:59:44,886 INFO L394 BasicCegarLoop]: Found error trace [2019-01-31 14:59:44,886 INFO L402 BasicCegarLoop]: trace histogram [18, 18, 1, 1, 1, 1] [2019-01-31 14:59:44,886 INFO L423 AbstractCegarLoop]: === Iteration 29 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2019-01-31 14:59:44,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-31 14:59:44,886 INFO L82 PathProgramCache]: Analyzing trace with hash -536355862, now seen corresponding path program 27 times [2019-01-31 14:59:44,886 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-01-31 14:59:44,887 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-31 14:59:44,887 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-01-31 14:59:44,887 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-31 14:59:44,887 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-01-31 14:59:44,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-31 14:59:46,650 INFO L273 TraceCheckUtils]: 0: Hoare triple {9040#true} havoc main_#res;havoc main_#t~nondet0, main_#t~nondet2, main_#t~post1, main_#t~post4, main_#t~post3, main_#t~post6, main_#t~post5, main_~MAX~6, main_~str1~6, main_~str2~6, main_~cont~6, main_~i~6, main_~j~6;main_~MAX~6 := (if main_#t~nondet0 % 4294967296 % 4294967296 <= 2147483647 then main_#t~nondet0 % 4294967296 % 4294967296 else main_#t~nondet0 % 4294967296 % 4294967296 - 4294967296);havoc main_#t~nondet0;havoc main_~str1~6;havoc main_~str2~6;havoc main_~cont~6;havoc main_~i~6;havoc main_~j~6;main_~cont~6 := 0;main_~i~6 := 0; {9042#(and (<= ULTIMATE.start_main_~i~6 0) (<= 0 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:59:46,651 INFO L273 TraceCheckUtils]: 1: Hoare triple {9042#(and (<= ULTIMATE.start_main_~i~6 0) (<= 0 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {9043#(and (<= ULTIMATE.start_main_~i~6 1) (<= 1 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:59:46,652 INFO L273 TraceCheckUtils]: 2: Hoare triple {9043#(and (<= ULTIMATE.start_main_~i~6 1) (<= 1 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {9044#(and (<= ULTIMATE.start_main_~i~6 2) (<= 2 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:59:46,653 INFO L273 TraceCheckUtils]: 3: Hoare triple {9044#(and (<= ULTIMATE.start_main_~i~6 2) (<= 2 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {9045#(and (<= 3 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 3))} is VALID [2019-01-31 14:59:46,654 INFO L273 TraceCheckUtils]: 4: Hoare triple {9045#(and (<= 3 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 3))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {9046#(and (<= ULTIMATE.start_main_~i~6 4) (<= 4 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:59:46,655 INFO L273 TraceCheckUtils]: 5: Hoare triple {9046#(and (<= ULTIMATE.start_main_~i~6 4) (<= 4 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {9047#(and (<= 5 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 5))} is VALID [2019-01-31 14:59:46,656 INFO L273 TraceCheckUtils]: 6: Hoare triple {9047#(and (<= 5 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 5))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {9048#(and (<= ULTIMATE.start_main_~i~6 6) (<= 6 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:59:46,657 INFO L273 TraceCheckUtils]: 7: Hoare triple {9048#(and (<= ULTIMATE.start_main_~i~6 6) (<= 6 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {9049#(and (<= 7 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 7))} is VALID [2019-01-31 14:59:46,657 INFO L273 TraceCheckUtils]: 8: Hoare triple {9049#(and (<= 7 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 7))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {9050#(and (<= ULTIMATE.start_main_~i~6 8) (<= 8 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:59:46,658 INFO L273 TraceCheckUtils]: 9: Hoare triple {9050#(and (<= ULTIMATE.start_main_~i~6 8) (<= 8 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {9051#(and (<= ULTIMATE.start_main_~i~6 9) (<= 9 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:59:46,659 INFO L273 TraceCheckUtils]: 10: Hoare triple {9051#(and (<= ULTIMATE.start_main_~i~6 9) (<= 9 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {9052#(and (<= ULTIMATE.start_main_~i~6 10) (<= 10 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:59:46,660 INFO L273 TraceCheckUtils]: 11: Hoare triple {9052#(and (<= ULTIMATE.start_main_~i~6 10) (<= 10 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {9053#(and (<= 11 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 11))} is VALID [2019-01-31 14:59:46,661 INFO L273 TraceCheckUtils]: 12: Hoare triple {9053#(and (<= 11 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 11))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {9054#(and (<= ULTIMATE.start_main_~i~6 12) (<= 12 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:59:46,662 INFO L273 TraceCheckUtils]: 13: Hoare triple {9054#(and (<= ULTIMATE.start_main_~i~6 12) (<= 12 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {9055#(and (<= ULTIMATE.start_main_~i~6 13) (<= 13 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:59:46,663 INFO L273 TraceCheckUtils]: 14: Hoare triple {9055#(and (<= ULTIMATE.start_main_~i~6 13) (<= 13 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {9056#(and (<= ULTIMATE.start_main_~i~6 14) (<= 14 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:59:46,664 INFO L273 TraceCheckUtils]: 15: Hoare triple {9056#(and (<= ULTIMATE.start_main_~i~6 14) (<= 14 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {9057#(and (<= 15 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 15))} is VALID [2019-01-31 14:59:46,665 INFO L273 TraceCheckUtils]: 16: Hoare triple {9057#(and (<= 15 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 15))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {9058#(and (<= 16 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 16))} is VALID [2019-01-31 14:59:46,666 INFO L273 TraceCheckUtils]: 17: Hoare triple {9058#(and (<= 16 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 16))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {9059#(or (not (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 1))) (and (<= ULTIMATE.start_main_~i~6 17) (<= 17 ULTIMATE.start_main_~i~6)))} is VALID [2019-01-31 14:59:46,667 INFO L273 TraceCheckUtils]: 18: Hoare triple {9059#(or (not (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 1))) (and (<= ULTIMATE.start_main_~i~6 17) (<= 17 ULTIMATE.start_main_~i~6)))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {9060#(or (<= (+ ULTIMATE.start_main_~i~6 1) ULTIMATE.start_main_~MAX~6) (= 18 ULTIMATE.start_main_~MAX~6))} is VALID [2019-01-31 14:59:46,668 INFO L273 TraceCheckUtils]: 19: Hoare triple {9060#(or (<= (+ ULTIMATE.start_main_~i~6 1) ULTIMATE.start_main_~MAX~6) (= 18 ULTIMATE.start_main_~MAX~6))} assume !(main_~i~6 < main_~MAX~6);main_~str1~6 := main_~str1~6[main_~MAX~6 - 1 := 0];main_~j~6 := 0;main_~i~6 := main_~MAX~6 - 1; {9061#(= (+ ULTIMATE.start_main_~j~6 18) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:59:46,669 INFO L273 TraceCheckUtils]: 20: Hoare triple {9061#(= (+ ULTIMATE.start_main_~j~6 18) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {9062#(= (+ ULTIMATE.start_main_~j~6 17) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:59:46,670 INFO L273 TraceCheckUtils]: 21: Hoare triple {9062#(= (+ ULTIMATE.start_main_~j~6 17) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {9063#(= (+ ULTIMATE.start_main_~j~6 16) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:59:46,671 INFO L273 TraceCheckUtils]: 22: Hoare triple {9063#(= (+ ULTIMATE.start_main_~j~6 16) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {9064#(= (+ ULTIMATE.start_main_~j~6 15) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:59:46,672 INFO L273 TraceCheckUtils]: 23: Hoare triple {9064#(= (+ ULTIMATE.start_main_~j~6 15) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {9065#(= (+ ULTIMATE.start_main_~j~6 14) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:59:46,673 INFO L273 TraceCheckUtils]: 24: Hoare triple {9065#(= (+ ULTIMATE.start_main_~j~6 14) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {9066#(= (+ ULTIMATE.start_main_~j~6 13) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:59:46,674 INFO L273 TraceCheckUtils]: 25: Hoare triple {9066#(= (+ ULTIMATE.start_main_~j~6 13) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {9067#(= (+ ULTIMATE.start_main_~j~6 12) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:59:46,675 INFO L273 TraceCheckUtils]: 26: Hoare triple {9067#(= (+ ULTIMATE.start_main_~j~6 12) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {9068#(= (+ ULTIMATE.start_main_~j~6 11) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:59:46,676 INFO L273 TraceCheckUtils]: 27: Hoare triple {9068#(= (+ ULTIMATE.start_main_~j~6 11) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {9069#(= (+ ULTIMATE.start_main_~j~6 10) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:59:46,677 INFO L273 TraceCheckUtils]: 28: Hoare triple {9069#(= (+ ULTIMATE.start_main_~j~6 10) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {9070#(= (+ ULTIMATE.start_main_~j~6 9) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:59:46,678 INFO L273 TraceCheckUtils]: 29: Hoare triple {9070#(= (+ ULTIMATE.start_main_~j~6 9) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {9071#(= (+ ULTIMATE.start_main_~j~6 8) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:59:46,679 INFO L273 TraceCheckUtils]: 30: Hoare triple {9071#(= (+ ULTIMATE.start_main_~j~6 8) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {9072#(= (+ ULTIMATE.start_main_~j~6 7) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:59:46,680 INFO L273 TraceCheckUtils]: 31: Hoare triple {9072#(= (+ ULTIMATE.start_main_~j~6 7) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {9073#(= (+ ULTIMATE.start_main_~j~6 6) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:59:46,681 INFO L273 TraceCheckUtils]: 32: Hoare triple {9073#(= (+ ULTIMATE.start_main_~j~6 6) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {9074#(= (+ ULTIMATE.start_main_~j~6 5) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:59:46,682 INFO L273 TraceCheckUtils]: 33: Hoare triple {9074#(= (+ ULTIMATE.start_main_~j~6 5) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {9075#(= (+ ULTIMATE.start_main_~j~6 4) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:59:46,683 INFO L273 TraceCheckUtils]: 34: Hoare triple {9075#(= (+ ULTIMATE.start_main_~j~6 4) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {9076#(= (+ ULTIMATE.start_main_~j~6 3) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:59:46,684 INFO L273 TraceCheckUtils]: 35: Hoare triple {9076#(= (+ ULTIMATE.start_main_~j~6 3) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {9077#(= (+ ULTIMATE.start_main_~j~6 2) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:59:46,685 INFO L273 TraceCheckUtils]: 36: Hoare triple {9077#(= (+ ULTIMATE.start_main_~j~6 2) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {9078#(= (+ ULTIMATE.start_main_~j~6 1) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 14:59:46,686 INFO L273 TraceCheckUtils]: 37: Hoare triple {9078#(= (+ ULTIMATE.start_main_~j~6 1) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {9079#(= (select ULTIMATE.start_main_~str1~6 0) (select ULTIMATE.start_main_~str2~6 (+ ULTIMATE.start_main_~MAX~6 (- 1))))} is VALID [2019-01-31 14:59:46,687 INFO L273 TraceCheckUtils]: 38: Hoare triple {9079#(= (select ULTIMATE.start_main_~str1~6 0) (select ULTIMATE.start_main_~str2~6 (+ ULTIMATE.start_main_~MAX~6 (- 1))))} assume !(main_~i~6 >= 0);main_~j~6 := main_~MAX~6 - 1;main_~i~6 := 0;assume !!(main_~i~6 < main_~MAX~6);__VERIFIER_assert_#in~cond := (if main_~str1~6[main_~i~6] == main_~str2~6[main_~j~6] then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond;assume __VERIFIER_assert_~cond == 0;assume !false; {9041#false} is VALID [2019-01-31 14:59:46,687 INFO L273 TraceCheckUtils]: 39: Hoare triple {9041#false} assume !false; {9041#false} is VALID [2019-01-31 14:59:46,690 INFO L134 CoverageAnalysis]: Checked inductivity of 342 backedges. 0 proven. 342 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-31 14:59:46,691 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-31 14:59:46,691 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-01-31 14:59:46,691 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-01-31 14:59:46,691 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-01-31 14:59:46,691 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-31 14:59:46,691 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 28 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 28 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-01-31 14:59:46,701 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2019-01-31 14:59:46,701 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder TERMS_WITH_SMALL_CONSTANTS_FIRST (IT: FPandBP) [2019-01-31 14:59:46,731 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-01-31 14:59:46,731 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-01-31 14:59:46,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-31 14:59:46,748 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-31 14:59:47,731 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2019-01-31 14:59:47,733 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-01-31 14:59:47,739 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-31 14:59:47,740 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:17, output treesize:16 [2019-01-31 14:59:47,742 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-01-31 14:59:47,743 WARN L398 uantifierElimination]: Input elimination task: ∃ [v_ULTIMATE.start_main_~str2~6_258]. (and (<= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 19)) (= ULTIMATE.start_main_~str2~6 (store v_ULTIMATE.start_main_~str2~6_258 17 (select ULTIMATE.start_main_~str1~6 0))) (<= 18 ULTIMATE.start_main_~MAX~6)) [2019-01-31 14:59:47,743 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (and (<= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 19)) (= (select ULTIMATE.start_main_~str2~6 17) (select ULTIMATE.start_main_~str1~6 0)) (<= 18 ULTIMATE.start_main_~MAX~6)) [2019-01-31 14:59:47,812 INFO L273 TraceCheckUtils]: 0: Hoare triple {9040#true} havoc main_#res;havoc main_#t~nondet0, main_#t~nondet2, main_#t~post1, main_#t~post4, main_#t~post3, main_#t~post6, main_#t~post5, main_~MAX~6, main_~str1~6, main_~str2~6, main_~cont~6, main_~i~6, main_~j~6;main_~MAX~6 := (if main_#t~nondet0 % 4294967296 % 4294967296 <= 2147483647 then main_#t~nondet0 % 4294967296 % 4294967296 else main_#t~nondet0 % 4294967296 % 4294967296 - 4294967296);havoc main_#t~nondet0;havoc main_~str1~6;havoc main_~str2~6;havoc main_~cont~6;havoc main_~i~6;havoc main_~j~6;main_~cont~6 := 0;main_~i~6 := 0; {9040#true} is VALID [2019-01-31 14:59:47,812 INFO L273 TraceCheckUtils]: 1: Hoare triple {9040#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {9040#true} is VALID [2019-01-31 14:59:47,812 INFO L273 TraceCheckUtils]: 2: Hoare triple {9040#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {9040#true} is VALID [2019-01-31 14:59:47,813 INFO L273 TraceCheckUtils]: 3: Hoare triple {9040#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {9040#true} is VALID [2019-01-31 14:59:47,813 INFO L273 TraceCheckUtils]: 4: Hoare triple {9040#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {9040#true} is VALID [2019-01-31 14:59:47,813 INFO L273 TraceCheckUtils]: 5: Hoare triple {9040#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {9040#true} is VALID [2019-01-31 14:59:47,813 INFO L273 TraceCheckUtils]: 6: Hoare triple {9040#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {9040#true} is VALID [2019-01-31 14:59:47,813 INFO L273 TraceCheckUtils]: 7: Hoare triple {9040#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {9040#true} is VALID [2019-01-31 14:59:47,814 INFO L273 TraceCheckUtils]: 8: Hoare triple {9040#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {9040#true} is VALID [2019-01-31 14:59:47,814 INFO L273 TraceCheckUtils]: 9: Hoare triple {9040#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {9040#true} is VALID [2019-01-31 14:59:47,814 INFO L273 TraceCheckUtils]: 10: Hoare triple {9040#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {9040#true} is VALID [2019-01-31 14:59:47,814 INFO L273 TraceCheckUtils]: 11: Hoare triple {9040#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {9040#true} is VALID [2019-01-31 14:59:47,814 INFO L273 TraceCheckUtils]: 12: Hoare triple {9040#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {9040#true} is VALID [2019-01-31 14:59:47,814 INFO L273 TraceCheckUtils]: 13: Hoare triple {9040#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {9040#true} is VALID [2019-01-31 14:59:47,814 INFO L273 TraceCheckUtils]: 14: Hoare triple {9040#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {9040#true} is VALID [2019-01-31 14:59:47,814 INFO L273 TraceCheckUtils]: 15: Hoare triple {9040#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {9040#true} is VALID [2019-01-31 14:59:47,815 INFO L273 TraceCheckUtils]: 16: Hoare triple {9040#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {9040#true} is VALID [2019-01-31 14:59:47,815 INFO L273 TraceCheckUtils]: 17: Hoare triple {9040#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {9040#true} is VALID [2019-01-31 14:59:47,815 INFO L273 TraceCheckUtils]: 18: Hoare triple {9040#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {9040#true} is VALID [2019-01-31 14:59:47,815 INFO L273 TraceCheckUtils]: 19: Hoare triple {9040#true} assume !(main_~i~6 < main_~MAX~6);main_~str1~6 := main_~str1~6[main_~MAX~6 - 1 := 0];main_~j~6 := 0;main_~i~6 := main_~MAX~6 - 1; {9140#(and (= ULTIMATE.start_main_~j~6 0) (= (+ ULTIMATE.start_main_~i~6 1) ULTIMATE.start_main_~MAX~6))} is VALID [2019-01-31 14:59:47,816 INFO L273 TraceCheckUtils]: 20: Hoare triple {9140#(and (= ULTIMATE.start_main_~j~6 0) (= (+ ULTIMATE.start_main_~i~6 1) ULTIMATE.start_main_~MAX~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {9144#(and (= ULTIMATE.start_main_~j~6 1) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 2)))} is VALID [2019-01-31 14:59:47,817 INFO L273 TraceCheckUtils]: 21: Hoare triple {9144#(and (= ULTIMATE.start_main_~j~6 1) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 2)))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {9148#(and (= (+ ULTIMATE.start_main_~i~6 3) ULTIMATE.start_main_~MAX~6) (= ULTIMATE.start_main_~j~6 2))} is VALID [2019-01-31 14:59:47,817 INFO L273 TraceCheckUtils]: 22: Hoare triple {9148#(and (= (+ ULTIMATE.start_main_~i~6 3) ULTIMATE.start_main_~MAX~6) (= ULTIMATE.start_main_~j~6 2))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {9152#(and (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 4)) (= ULTIMATE.start_main_~j~6 3))} is VALID [2019-01-31 14:59:47,818 INFO L273 TraceCheckUtils]: 23: Hoare triple {9152#(and (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 4)) (= ULTIMATE.start_main_~j~6 3))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {9156#(and (= ULTIMATE.start_main_~j~6 4) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 5)))} is VALID [2019-01-31 14:59:47,819 INFO L273 TraceCheckUtils]: 24: Hoare triple {9156#(and (= ULTIMATE.start_main_~j~6 4) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 5)))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {9160#(and (= ULTIMATE.start_main_~j~6 5) (= (+ ULTIMATE.start_main_~i~6 6) ULTIMATE.start_main_~MAX~6))} is VALID [2019-01-31 14:59:47,819 INFO L273 TraceCheckUtils]: 25: Hoare triple {9160#(and (= ULTIMATE.start_main_~j~6 5) (= (+ ULTIMATE.start_main_~i~6 6) ULTIMATE.start_main_~MAX~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {9164#(and (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 7)) (= ULTIMATE.start_main_~j~6 6))} is VALID [2019-01-31 14:59:47,820 INFO L273 TraceCheckUtils]: 26: Hoare triple {9164#(and (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 7)) (= ULTIMATE.start_main_~j~6 6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {9168#(and (= ULTIMATE.start_main_~j~6 7) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 8)))} is VALID [2019-01-31 14:59:47,821 INFO L273 TraceCheckUtils]: 27: Hoare triple {9168#(and (= ULTIMATE.start_main_~j~6 7) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 8)))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {9172#(and (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 9)) (= ULTIMATE.start_main_~j~6 8))} is VALID [2019-01-31 14:59:47,822 INFO L273 TraceCheckUtils]: 28: Hoare triple {9172#(and (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 9)) (= ULTIMATE.start_main_~j~6 8))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {9176#(and (= ULTIMATE.start_main_~j~6 9) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 10)))} is VALID [2019-01-31 14:59:47,823 INFO L273 TraceCheckUtils]: 29: Hoare triple {9176#(and (= ULTIMATE.start_main_~j~6 9) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 10)))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {9180#(and (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 11)) (= ULTIMATE.start_main_~j~6 10))} is VALID [2019-01-31 14:59:47,824 INFO L273 TraceCheckUtils]: 30: Hoare triple {9180#(and (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 11)) (= ULTIMATE.start_main_~j~6 10))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {9184#(and (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 12)) (= ULTIMATE.start_main_~j~6 11))} is VALID [2019-01-31 14:59:47,825 INFO L273 TraceCheckUtils]: 31: Hoare triple {9184#(and (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 12)) (= ULTIMATE.start_main_~j~6 11))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {9188#(and (= ULTIMATE.start_main_~j~6 12) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 13)))} is VALID [2019-01-31 14:59:47,826 INFO L273 TraceCheckUtils]: 32: Hoare triple {9188#(and (= ULTIMATE.start_main_~j~6 12) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 13)))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {9192#(and (= ULTIMATE.start_main_~j~6 13) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 14)))} is VALID [2019-01-31 14:59:47,827 INFO L273 TraceCheckUtils]: 33: Hoare triple {9192#(and (= ULTIMATE.start_main_~j~6 13) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 14)))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {9196#(and (= ULTIMATE.start_main_~j~6 14) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 15)))} is VALID [2019-01-31 14:59:47,828 INFO L273 TraceCheckUtils]: 34: Hoare triple {9196#(and (= ULTIMATE.start_main_~j~6 14) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 15)))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {9200#(and (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 16)) (= ULTIMATE.start_main_~j~6 15))} is VALID [2019-01-31 14:59:47,829 INFO L273 TraceCheckUtils]: 35: Hoare triple {9200#(and (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 16)) (= ULTIMATE.start_main_~j~6 15))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {9204#(and (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 17)) (= ULTIMATE.start_main_~j~6 16))} is VALID [2019-01-31 14:59:47,830 INFO L273 TraceCheckUtils]: 36: Hoare triple {9204#(and (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 17)) (= ULTIMATE.start_main_~j~6 16))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {9208#(and (= ULTIMATE.start_main_~j~6 17) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 18)))} is VALID [2019-01-31 14:59:47,831 INFO L273 TraceCheckUtils]: 37: Hoare triple {9208#(and (= ULTIMATE.start_main_~j~6 17) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 18)))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {9212#(and (<= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 19)) (= (select ULTIMATE.start_main_~str2~6 17) (select ULTIMATE.start_main_~str1~6 0)) (<= 18 ULTIMATE.start_main_~MAX~6))} is VALID [2019-01-31 14:59:47,833 INFO L273 TraceCheckUtils]: 38: Hoare triple {9212#(and (<= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 19)) (= (select ULTIMATE.start_main_~str2~6 17) (select ULTIMATE.start_main_~str1~6 0)) (<= 18 ULTIMATE.start_main_~MAX~6))} assume !(main_~i~6 >= 0);main_~j~6 := main_~MAX~6 - 1;main_~i~6 := 0;assume !!(main_~i~6 < main_~MAX~6);__VERIFIER_assert_#in~cond := (if main_~str1~6[main_~i~6] == main_~str2~6[main_~j~6] then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond;assume __VERIFIER_assert_~cond == 0;assume !false; {9041#false} is VALID [2019-01-31 14:59:47,833 INFO L273 TraceCheckUtils]: 39: Hoare triple {9041#false} assume !false; {9041#false} is VALID [2019-01-31 14:59:47,836 INFO L134 CoverageAnalysis]: Checked inductivity of 342 backedges. 0 proven. 171 refuted. 0 times theorem prover too weak. 171 trivial. 0 not checked. [2019-01-31 14:59:47,836 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2019-01-31 14:59:47,935 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 5 [2019-01-31 14:59:47,938 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-01-31 14:59:47,948 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-31 14:59:47,949 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:22, output treesize:12 [2019-01-31 14:59:47,951 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-01-31 14:59:47,951 WARN L398 uantifierElimination]: Input elimination task: ∀ [ULTIMATE.start_main_~str2~6, ULTIMATE.start_main_~str1~6]. (or (not (<= 0 ULTIMATE.start_main_~i~6)) (let ((.cse0 (select ULTIMATE.start_main_~str1~6 0))) (= .cse0 (select (store ULTIMATE.start_main_~str2~6 ULTIMATE.start_main_~j~6 .cse0) (+ ULTIMATE.start_main_~MAX~6 (- 1))))) (< 0 ULTIMATE.start_main_~i~6)) [2019-01-31 14:59:47,952 WARN L399 uantifierElimination]: ElimStorePlain result: ∀ []. (or (< ULTIMATE.start_main_~i~6 0) (< 0 ULTIMATE.start_main_~i~6) (= (+ ULTIMATE.start_main_~j~6 1) ULTIMATE.start_main_~MAX~6)) [2019-01-31 14:59:49,314 INFO L273 TraceCheckUtils]: 39: Hoare triple {9041#false} assume !false; {9041#false} is VALID [2019-01-31 14:59:49,316 INFO L273 TraceCheckUtils]: 38: Hoare triple {9222#(or (= (select ULTIMATE.start_main_~str1~6 0) (select ULTIMATE.start_main_~str2~6 (+ ULTIMATE.start_main_~MAX~6 (- 1)))) (<= 0 ULTIMATE.start_main_~i~6))} assume !(main_~i~6 >= 0);main_~j~6 := main_~MAX~6 - 1;main_~i~6 := 0;assume !!(main_~i~6 < main_~MAX~6);__VERIFIER_assert_#in~cond := (if main_~str1~6[main_~i~6] == main_~str2~6[main_~j~6] then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond;assume __VERIFIER_assert_~cond == 0;assume !false; {9041#false} is VALID [2019-01-31 14:59:49,317 INFO L273 TraceCheckUtils]: 37: Hoare triple {9226#(or (< ULTIMATE.start_main_~i~6 0) (< 0 ULTIMATE.start_main_~i~6) (= (+ ULTIMATE.start_main_~j~6 1) ULTIMATE.start_main_~MAX~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {9222#(or (= (select ULTIMATE.start_main_~str1~6 0) (select ULTIMATE.start_main_~str2~6 (+ ULTIMATE.start_main_~MAX~6 (- 1)))) (<= 0 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:59:49,318 INFO L273 TraceCheckUtils]: 36: Hoare triple {9230#(or (= (+ ULTIMATE.start_main_~j~6 2) ULTIMATE.start_main_~MAX~6) (< 1 ULTIMATE.start_main_~i~6) (< ULTIMATE.start_main_~i~6 1))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {9226#(or (< ULTIMATE.start_main_~i~6 0) (< 0 ULTIMATE.start_main_~i~6) (= (+ ULTIMATE.start_main_~j~6 1) ULTIMATE.start_main_~MAX~6))} is VALID [2019-01-31 14:59:49,319 INFO L273 TraceCheckUtils]: 35: Hoare triple {9234#(or (= (+ ULTIMATE.start_main_~j~6 3) ULTIMATE.start_main_~MAX~6) (< ULTIMATE.start_main_~i~6 2) (< 2 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {9230#(or (= (+ ULTIMATE.start_main_~j~6 2) ULTIMATE.start_main_~MAX~6) (< 1 ULTIMATE.start_main_~i~6) (< ULTIMATE.start_main_~i~6 1))} is VALID [2019-01-31 14:59:49,320 INFO L273 TraceCheckUtils]: 34: Hoare triple {9238#(or (= (+ ULTIMATE.start_main_~j~6 4) ULTIMATE.start_main_~MAX~6) (< ULTIMATE.start_main_~i~6 3) (< 3 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {9234#(or (= (+ ULTIMATE.start_main_~j~6 3) ULTIMATE.start_main_~MAX~6) (< ULTIMATE.start_main_~i~6 2) (< 2 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:59:49,321 INFO L273 TraceCheckUtils]: 33: Hoare triple {9242#(or (= (+ ULTIMATE.start_main_~j~6 5) ULTIMATE.start_main_~MAX~6) (< 4 ULTIMATE.start_main_~i~6) (< ULTIMATE.start_main_~i~6 4))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {9238#(or (= (+ ULTIMATE.start_main_~j~6 4) ULTIMATE.start_main_~MAX~6) (< ULTIMATE.start_main_~i~6 3) (< 3 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:59:49,322 INFO L273 TraceCheckUtils]: 32: Hoare triple {9246#(or (< ULTIMATE.start_main_~i~6 5) (< 5 ULTIMATE.start_main_~i~6) (= (+ ULTIMATE.start_main_~j~6 6) ULTIMATE.start_main_~MAX~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {9242#(or (= (+ ULTIMATE.start_main_~j~6 5) ULTIMATE.start_main_~MAX~6) (< 4 ULTIMATE.start_main_~i~6) (< ULTIMATE.start_main_~i~6 4))} is VALID [2019-01-31 14:59:49,323 INFO L273 TraceCheckUtils]: 31: Hoare triple {9250#(or (< ULTIMATE.start_main_~i~6 6) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 7)) (< 6 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {9246#(or (< ULTIMATE.start_main_~i~6 5) (< 5 ULTIMATE.start_main_~i~6) (= (+ ULTIMATE.start_main_~j~6 6) ULTIMATE.start_main_~MAX~6))} is VALID [2019-01-31 14:59:49,324 INFO L273 TraceCheckUtils]: 30: Hoare triple {9254#(or (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 8)) (< ULTIMATE.start_main_~i~6 7) (< 7 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {9250#(or (< ULTIMATE.start_main_~i~6 6) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 7)) (< 6 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:59:49,326 INFO L273 TraceCheckUtils]: 29: Hoare triple {9258#(or (< 8 ULTIMATE.start_main_~i~6) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 9)) (< ULTIMATE.start_main_~i~6 8))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {9254#(or (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 8)) (< ULTIMATE.start_main_~i~6 7) (< 7 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:59:49,327 INFO L273 TraceCheckUtils]: 28: Hoare triple {9262#(or (< ULTIMATE.start_main_~i~6 9) (= (+ ULTIMATE.start_main_~j~6 10) ULTIMATE.start_main_~MAX~6) (< 9 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {9258#(or (< 8 ULTIMATE.start_main_~i~6) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 9)) (< ULTIMATE.start_main_~i~6 8))} is VALID [2019-01-31 14:59:49,328 INFO L273 TraceCheckUtils]: 27: Hoare triple {9266#(or (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 11)) (< 10 ULTIMATE.start_main_~i~6) (< ULTIMATE.start_main_~i~6 10))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {9262#(or (< ULTIMATE.start_main_~i~6 9) (= (+ ULTIMATE.start_main_~j~6 10) ULTIMATE.start_main_~MAX~6) (< 9 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:59:49,329 INFO L273 TraceCheckUtils]: 26: Hoare triple {9270#(or (< ULTIMATE.start_main_~i~6 11) (= (+ ULTIMATE.start_main_~j~6 12) ULTIMATE.start_main_~MAX~6) (< 11 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {9266#(or (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 11)) (< 10 ULTIMATE.start_main_~i~6) (< ULTIMATE.start_main_~i~6 10))} is VALID [2019-01-31 14:59:49,330 INFO L273 TraceCheckUtils]: 25: Hoare triple {9274#(or (< 12 ULTIMATE.start_main_~i~6) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 13)) (< ULTIMATE.start_main_~i~6 12))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {9270#(or (< ULTIMATE.start_main_~i~6 11) (= (+ ULTIMATE.start_main_~j~6 12) ULTIMATE.start_main_~MAX~6) (< 11 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:59:49,331 INFO L273 TraceCheckUtils]: 24: Hoare triple {9278#(or (< ULTIMATE.start_main_~i~6 13) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 14)) (< 13 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {9274#(or (< 12 ULTIMATE.start_main_~i~6) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 13)) (< ULTIMATE.start_main_~i~6 12))} is VALID [2019-01-31 14:59:49,332 INFO L273 TraceCheckUtils]: 23: Hoare triple {9282#(or (< 14 ULTIMATE.start_main_~i~6) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 15)) (< ULTIMATE.start_main_~i~6 14))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {9278#(or (< ULTIMATE.start_main_~i~6 13) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 14)) (< 13 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 14:59:49,333 INFO L273 TraceCheckUtils]: 22: Hoare triple {9286#(or (< 15 ULTIMATE.start_main_~i~6) (< ULTIMATE.start_main_~i~6 15) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 16)))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {9282#(or (< 14 ULTIMATE.start_main_~i~6) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 15)) (< ULTIMATE.start_main_~i~6 14))} is VALID [2019-01-31 14:59:49,334 INFO L273 TraceCheckUtils]: 21: Hoare triple {9290#(or (< ULTIMATE.start_main_~i~6 16) (< 16 ULTIMATE.start_main_~i~6) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 17)))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {9286#(or (< 15 ULTIMATE.start_main_~i~6) (< ULTIMATE.start_main_~i~6 15) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 16)))} is VALID [2019-01-31 14:59:49,335 INFO L273 TraceCheckUtils]: 20: Hoare triple {9294#(or (< ULTIMATE.start_main_~i~6 17) (< 17 ULTIMATE.start_main_~i~6) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 18)))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {9290#(or (< ULTIMATE.start_main_~i~6 16) (< 16 ULTIMATE.start_main_~i~6) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 17)))} is VALID [2019-01-31 14:59:49,336 INFO L273 TraceCheckUtils]: 19: Hoare triple {9040#true} assume !(main_~i~6 < main_~MAX~6);main_~str1~6 := main_~str1~6[main_~MAX~6 - 1 := 0];main_~j~6 := 0;main_~i~6 := main_~MAX~6 - 1; {9294#(or (< ULTIMATE.start_main_~i~6 17) (< 17 ULTIMATE.start_main_~i~6) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 18)))} is VALID [2019-01-31 14:59:49,337 INFO L273 TraceCheckUtils]: 18: Hoare triple {9040#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {9040#true} is VALID [2019-01-31 14:59:49,337 INFO L273 TraceCheckUtils]: 17: Hoare triple {9040#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {9040#true} is VALID [2019-01-31 14:59:49,337 INFO L273 TraceCheckUtils]: 16: Hoare triple {9040#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {9040#true} is VALID [2019-01-31 14:59:49,337 INFO L273 TraceCheckUtils]: 15: Hoare triple {9040#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {9040#true} is VALID [2019-01-31 14:59:49,337 INFO L273 TraceCheckUtils]: 14: Hoare triple {9040#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {9040#true} is VALID [2019-01-31 14:59:49,338 INFO L273 TraceCheckUtils]: 13: Hoare triple {9040#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {9040#true} is VALID [2019-01-31 14:59:49,338 INFO L273 TraceCheckUtils]: 12: Hoare triple {9040#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {9040#true} is VALID [2019-01-31 14:59:49,338 INFO L273 TraceCheckUtils]: 11: Hoare triple {9040#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {9040#true} is VALID [2019-01-31 14:59:49,338 INFO L273 TraceCheckUtils]: 10: Hoare triple {9040#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {9040#true} is VALID [2019-01-31 14:59:49,338 INFO L273 TraceCheckUtils]: 9: Hoare triple {9040#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {9040#true} is VALID [2019-01-31 14:59:49,339 INFO L273 TraceCheckUtils]: 8: Hoare triple {9040#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {9040#true} is VALID [2019-01-31 14:59:49,339 INFO L273 TraceCheckUtils]: 7: Hoare triple {9040#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {9040#true} is VALID [2019-01-31 14:59:49,339 INFO L273 TraceCheckUtils]: 6: Hoare triple {9040#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {9040#true} is VALID [2019-01-31 14:59:49,339 INFO L273 TraceCheckUtils]: 5: Hoare triple {9040#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {9040#true} is VALID [2019-01-31 14:59:49,339 INFO L273 TraceCheckUtils]: 4: Hoare triple {9040#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {9040#true} is VALID [2019-01-31 14:59:49,339 INFO L273 TraceCheckUtils]: 3: Hoare triple {9040#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {9040#true} is VALID [2019-01-31 14:59:49,339 INFO L273 TraceCheckUtils]: 2: Hoare triple {9040#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {9040#true} is VALID [2019-01-31 14:59:49,339 INFO L273 TraceCheckUtils]: 1: Hoare triple {9040#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {9040#true} is VALID [2019-01-31 14:59:49,340 INFO L273 TraceCheckUtils]: 0: Hoare triple {9040#true} havoc main_#res;havoc main_#t~nondet0, main_#t~nondet2, main_#t~post1, main_#t~post4, main_#t~post3, main_#t~post6, main_#t~post5, main_~MAX~6, main_~str1~6, main_~str2~6, main_~cont~6, main_~i~6, main_~j~6;main_~MAX~6 := (if main_#t~nondet0 % 4294967296 % 4294967296 <= 2147483647 then main_#t~nondet0 % 4294967296 % 4294967296 else main_#t~nondet0 % 4294967296 % 4294967296 - 4294967296);havoc main_#t~nondet0;havoc main_~str1~6;havoc main_~str2~6;havoc main_~cont~6;havoc main_~i~6;havoc main_~j~6;main_~cont~6 := 0;main_~i~6 := 0; {9040#true} is VALID [2019-01-31 14:59:49,342 INFO L134 CoverageAnalysis]: Checked inductivity of 342 backedges. 0 proven. 171 refuted. 0 times theorem prover too weak. 171 trivial. 0 not checked. [2019-01-31 14:59:49,360 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-01-31 14:59:49,360 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [39, 21, 21] total 78 [2019-01-31 14:59:49,360 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-01-31 14:59:49,361 INFO L78 Accepts]: Start accepts. Automaton has 59 states. Word has length 40 [2019-01-31 14:59:49,361 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-01-31 14:59:49,361 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 59 states. [2019-01-31 14:59:49,420 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 62 edges. 62 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-01-31 14:59:49,420 INFO L459 AbstractCegarLoop]: Interpolant automaton has 59 states [2019-01-31 14:59:49,421 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 59 interpolants. [2019-01-31 14:59:49,421 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=838, Invalid=5168, Unknown=0, NotChecked=0, Total=6006 [2019-01-31 14:59:49,421 INFO L87 Difference]: Start difference. First operand 41 states and 42 transitions. Second operand 59 states. [2019-01-31 14:59:57,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 14:59:57,974 INFO L93 Difference]: Finished difference Result 65 states and 69 transitions. [2019-01-31 14:59:57,974 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2019-01-31 14:59:57,974 INFO L78 Accepts]: Start accepts. Automaton has 59 states. Word has length 40 [2019-01-31 14:59:57,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-31 14:59:57,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2019-01-31 14:59:57,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 69 transitions. [2019-01-31 14:59:57,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2019-01-31 14:59:57,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 69 transitions. [2019-01-31 14:59:57,977 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 62 states and 69 transitions. [2019-01-31 14:59:58,055 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 69 edges. 69 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-01-31 14:59:58,056 INFO L225 Difference]: With dead ends: 65 [2019-01-31 14:59:58,056 INFO L226 Difference]: Without dead ends: 43 [2019-01-31 14:59:58,057 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 99 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 818 ImplicationChecksByTransitivity, 4.9s TimeCoverageRelationStatistics Valid=1393, Invalid=8707, Unknown=0, NotChecked=0, Total=10100 [2019-01-31 14:59:58,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2019-01-31 14:59:58,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2019-01-31 14:59:58,722 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-01-31 14:59:58,722 INFO L82 GeneralOperation]: Start isEquivalent. First operand 43 states. Second operand 43 states. [2019-01-31 14:59:58,722 INFO L74 IsIncluded]: Start isIncluded. First operand 43 states. Second operand 43 states. [2019-01-31 14:59:58,722 INFO L87 Difference]: Start difference. First operand 43 states. Second operand 43 states. [2019-01-31 14:59:58,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 14:59:58,723 INFO L93 Difference]: Finished difference Result 43 states and 44 transitions. [2019-01-31 14:59:58,723 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 44 transitions. [2019-01-31 14:59:58,724 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-31 14:59:58,724 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-01-31 14:59:58,724 INFO L74 IsIncluded]: Start isIncluded. First operand 43 states. Second operand 43 states. [2019-01-31 14:59:58,724 INFO L87 Difference]: Start difference. First operand 43 states. Second operand 43 states. [2019-01-31 14:59:58,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 14:59:58,724 INFO L93 Difference]: Finished difference Result 43 states and 44 transitions. [2019-01-31 14:59:58,725 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 44 transitions. [2019-01-31 14:59:58,725 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-31 14:59:58,725 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-01-31 14:59:58,725 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-01-31 14:59:58,725 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-01-31 14:59:58,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2019-01-31 14:59:58,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 44 transitions. [2019-01-31 14:59:58,726 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 44 transitions. Word has length 40 [2019-01-31 14:59:58,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-31 14:59:58,726 INFO L480 AbstractCegarLoop]: Abstraction has 43 states and 44 transitions. [2019-01-31 14:59:58,726 INFO L481 AbstractCegarLoop]: Interpolant automaton has 59 states. [2019-01-31 14:59:58,726 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 44 transitions. [2019-01-31 14:59:58,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2019-01-31 14:59:58,726 INFO L394 BasicCegarLoop]: Found error trace [2019-01-31 14:59:58,727 INFO L402 BasicCegarLoop]: trace histogram [19, 19, 1, 1, 1, 1] [2019-01-31 14:59:58,727 INFO L423 AbstractCegarLoop]: === Iteration 30 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2019-01-31 14:59:58,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-31 14:59:58,727 INFO L82 PathProgramCache]: Analyzing trace with hash -684650731, now seen corresponding path program 28 times [2019-01-31 14:59:58,727 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-01-31 14:59:58,728 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-31 14:59:58,728 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-01-31 14:59:58,728 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-31 14:59:58,728 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-01-31 14:59:58,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-31 15:00:00,004 INFO L273 TraceCheckUtils]: 0: Hoare triple {9697#true} havoc main_#res;havoc main_#t~nondet0, main_#t~nondet2, main_#t~post1, main_#t~post4, main_#t~post3, main_#t~post6, main_#t~post5, main_~MAX~6, main_~str1~6, main_~str2~6, main_~cont~6, main_~i~6, main_~j~6;main_~MAX~6 := (if main_#t~nondet0 % 4294967296 % 4294967296 <= 2147483647 then main_#t~nondet0 % 4294967296 % 4294967296 else main_#t~nondet0 % 4294967296 % 4294967296 - 4294967296);havoc main_#t~nondet0;havoc main_~str1~6;havoc main_~str2~6;havoc main_~cont~6;havoc main_~i~6;havoc main_~j~6;main_~cont~6 := 0;main_~i~6 := 0; {9699#(and (<= ULTIMATE.start_main_~i~6 0) (<= 0 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:00:00,005 INFO L273 TraceCheckUtils]: 1: Hoare triple {9699#(and (<= ULTIMATE.start_main_~i~6 0) (<= 0 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {9700#(and (<= ULTIMATE.start_main_~i~6 1) (<= 1 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:00:00,006 INFO L273 TraceCheckUtils]: 2: Hoare triple {9700#(and (<= ULTIMATE.start_main_~i~6 1) (<= 1 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {9701#(and (<= ULTIMATE.start_main_~i~6 2) (<= 2 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:00:00,007 INFO L273 TraceCheckUtils]: 3: Hoare triple {9701#(and (<= ULTIMATE.start_main_~i~6 2) (<= 2 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {9702#(and (<= 3 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 3))} is VALID [2019-01-31 15:00:00,008 INFO L273 TraceCheckUtils]: 4: Hoare triple {9702#(and (<= 3 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 3))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {9703#(and (<= ULTIMATE.start_main_~i~6 4) (<= 4 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:00:00,009 INFO L273 TraceCheckUtils]: 5: Hoare triple {9703#(and (<= ULTIMATE.start_main_~i~6 4) (<= 4 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {9704#(and (<= 5 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 5))} is VALID [2019-01-31 15:00:00,010 INFO L273 TraceCheckUtils]: 6: Hoare triple {9704#(and (<= 5 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 5))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {9705#(and (<= ULTIMATE.start_main_~i~6 6) (<= 6 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:00:00,011 INFO L273 TraceCheckUtils]: 7: Hoare triple {9705#(and (<= ULTIMATE.start_main_~i~6 6) (<= 6 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {9706#(and (<= 7 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 7))} is VALID [2019-01-31 15:00:00,012 INFO L273 TraceCheckUtils]: 8: Hoare triple {9706#(and (<= 7 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 7))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {9707#(and (<= ULTIMATE.start_main_~i~6 8) (<= 8 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:00:00,013 INFO L273 TraceCheckUtils]: 9: Hoare triple {9707#(and (<= ULTIMATE.start_main_~i~6 8) (<= 8 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {9708#(and (<= ULTIMATE.start_main_~i~6 9) (<= 9 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:00:00,013 INFO L273 TraceCheckUtils]: 10: Hoare triple {9708#(and (<= ULTIMATE.start_main_~i~6 9) (<= 9 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {9709#(and (<= ULTIMATE.start_main_~i~6 10) (<= 10 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:00:00,014 INFO L273 TraceCheckUtils]: 11: Hoare triple {9709#(and (<= ULTIMATE.start_main_~i~6 10) (<= 10 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {9710#(and (<= 11 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 11))} is VALID [2019-01-31 15:00:00,015 INFO L273 TraceCheckUtils]: 12: Hoare triple {9710#(and (<= 11 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 11))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {9711#(and (<= ULTIMATE.start_main_~i~6 12) (<= 12 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:00:00,016 INFO L273 TraceCheckUtils]: 13: Hoare triple {9711#(and (<= ULTIMATE.start_main_~i~6 12) (<= 12 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {9712#(and (<= ULTIMATE.start_main_~i~6 13) (<= 13 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:00:00,017 INFO L273 TraceCheckUtils]: 14: Hoare triple {9712#(and (<= ULTIMATE.start_main_~i~6 13) (<= 13 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {9713#(and (<= ULTIMATE.start_main_~i~6 14) (<= 14 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:00:00,018 INFO L273 TraceCheckUtils]: 15: Hoare triple {9713#(and (<= ULTIMATE.start_main_~i~6 14) (<= 14 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {9714#(and (<= 15 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 15))} is VALID [2019-01-31 15:00:00,019 INFO L273 TraceCheckUtils]: 16: Hoare triple {9714#(and (<= 15 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 15))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {9715#(and (<= 16 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 16))} is VALID [2019-01-31 15:00:00,020 INFO L273 TraceCheckUtils]: 17: Hoare triple {9715#(and (<= 16 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 16))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {9716#(and (<= ULTIMATE.start_main_~i~6 17) (<= 17 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:00:00,021 INFO L273 TraceCheckUtils]: 18: Hoare triple {9716#(and (<= ULTIMATE.start_main_~i~6 17) (<= 17 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {9717#(or (and (<= ULTIMATE.start_main_~i~6 18) (<= 18 ULTIMATE.start_main_~i~6)) (not (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 1))))} is VALID [2019-01-31 15:00:00,022 INFO L273 TraceCheckUtils]: 19: Hoare triple {9717#(or (and (<= ULTIMATE.start_main_~i~6 18) (<= 18 ULTIMATE.start_main_~i~6)) (not (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 1))))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {9718#(or (= 19 ULTIMATE.start_main_~MAX~6) (<= (+ ULTIMATE.start_main_~i~6 1) ULTIMATE.start_main_~MAX~6))} is VALID [2019-01-31 15:00:00,023 INFO L273 TraceCheckUtils]: 20: Hoare triple {9718#(or (= 19 ULTIMATE.start_main_~MAX~6) (<= (+ ULTIMATE.start_main_~i~6 1) ULTIMATE.start_main_~MAX~6))} assume !(main_~i~6 < main_~MAX~6);main_~str1~6 := main_~str1~6[main_~MAX~6 - 1 := 0];main_~j~6 := 0;main_~i~6 := main_~MAX~6 - 1; {9719#(= (+ ULTIMATE.start_main_~j~6 19) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:00:00,024 INFO L273 TraceCheckUtils]: 21: Hoare triple {9719#(= (+ ULTIMATE.start_main_~j~6 19) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {9720#(= (+ ULTIMATE.start_main_~j~6 18) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:00:00,025 INFO L273 TraceCheckUtils]: 22: Hoare triple {9720#(= (+ ULTIMATE.start_main_~j~6 18) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {9721#(= (+ ULTIMATE.start_main_~j~6 17) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:00:00,026 INFO L273 TraceCheckUtils]: 23: Hoare triple {9721#(= (+ ULTIMATE.start_main_~j~6 17) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {9722#(= (+ ULTIMATE.start_main_~j~6 16) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:00:00,027 INFO L273 TraceCheckUtils]: 24: Hoare triple {9722#(= (+ ULTIMATE.start_main_~j~6 16) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {9723#(= (+ ULTIMATE.start_main_~j~6 15) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:00:00,028 INFO L273 TraceCheckUtils]: 25: Hoare triple {9723#(= (+ ULTIMATE.start_main_~j~6 15) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {9724#(= (+ ULTIMATE.start_main_~j~6 14) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:00:00,029 INFO L273 TraceCheckUtils]: 26: Hoare triple {9724#(= (+ ULTIMATE.start_main_~j~6 14) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {9725#(= (+ ULTIMATE.start_main_~j~6 13) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:00:00,030 INFO L273 TraceCheckUtils]: 27: Hoare triple {9725#(= (+ ULTIMATE.start_main_~j~6 13) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {9726#(= (+ ULTIMATE.start_main_~j~6 12) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:00:00,031 INFO L273 TraceCheckUtils]: 28: Hoare triple {9726#(= (+ ULTIMATE.start_main_~j~6 12) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {9727#(= (+ ULTIMATE.start_main_~j~6 11) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:00:00,032 INFO L273 TraceCheckUtils]: 29: Hoare triple {9727#(= (+ ULTIMATE.start_main_~j~6 11) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {9728#(= (+ ULTIMATE.start_main_~j~6 10) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:00:00,033 INFO L273 TraceCheckUtils]: 30: Hoare triple {9728#(= (+ ULTIMATE.start_main_~j~6 10) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {9729#(= (+ ULTIMATE.start_main_~j~6 9) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:00:00,034 INFO L273 TraceCheckUtils]: 31: Hoare triple {9729#(= (+ ULTIMATE.start_main_~j~6 9) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {9730#(= (+ ULTIMATE.start_main_~j~6 8) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:00:00,035 INFO L273 TraceCheckUtils]: 32: Hoare triple {9730#(= (+ ULTIMATE.start_main_~j~6 8) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {9731#(= (+ ULTIMATE.start_main_~j~6 7) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:00:00,036 INFO L273 TraceCheckUtils]: 33: Hoare triple {9731#(= (+ ULTIMATE.start_main_~j~6 7) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {9732#(= (+ ULTIMATE.start_main_~j~6 6) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:00:00,037 INFO L273 TraceCheckUtils]: 34: Hoare triple {9732#(= (+ ULTIMATE.start_main_~j~6 6) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {9733#(= (+ ULTIMATE.start_main_~j~6 5) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:00:00,037 INFO L273 TraceCheckUtils]: 35: Hoare triple {9733#(= (+ ULTIMATE.start_main_~j~6 5) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {9734#(= (+ ULTIMATE.start_main_~j~6 4) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:00:00,038 INFO L273 TraceCheckUtils]: 36: Hoare triple {9734#(= (+ ULTIMATE.start_main_~j~6 4) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {9735#(= (+ ULTIMATE.start_main_~j~6 3) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:00:00,039 INFO L273 TraceCheckUtils]: 37: Hoare triple {9735#(= (+ ULTIMATE.start_main_~j~6 3) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {9736#(= (+ ULTIMATE.start_main_~j~6 2) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:00:00,040 INFO L273 TraceCheckUtils]: 38: Hoare triple {9736#(= (+ ULTIMATE.start_main_~j~6 2) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {9737#(= (+ ULTIMATE.start_main_~j~6 1) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:00:00,042 INFO L273 TraceCheckUtils]: 39: Hoare triple {9737#(= (+ ULTIMATE.start_main_~j~6 1) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {9738#(= (select ULTIMATE.start_main_~str1~6 0) (select ULTIMATE.start_main_~str2~6 (+ ULTIMATE.start_main_~MAX~6 (- 1))))} is VALID [2019-01-31 15:00:00,043 INFO L273 TraceCheckUtils]: 40: Hoare triple {9738#(= (select ULTIMATE.start_main_~str1~6 0) (select ULTIMATE.start_main_~str2~6 (+ ULTIMATE.start_main_~MAX~6 (- 1))))} assume !(main_~i~6 >= 0);main_~j~6 := main_~MAX~6 - 1;main_~i~6 := 0;assume !!(main_~i~6 < main_~MAX~6);__VERIFIER_assert_#in~cond := (if main_~str1~6[main_~i~6] == main_~str2~6[main_~j~6] then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond;assume __VERIFIER_assert_~cond == 0;assume !false; {9698#false} is VALID [2019-01-31 15:00:00,043 INFO L273 TraceCheckUtils]: 41: Hoare triple {9698#false} assume !false; {9698#false} is VALID [2019-01-31 15:00:00,046 INFO L134 CoverageAnalysis]: Checked inductivity of 380 backedges. 0 proven. 380 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-31 15:00:00,047 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-31 15:00:00,047 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-01-31 15:00:00,047 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-01-31 15:00:00,047 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-01-31 15:00:00,047 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-31 15:00:00,047 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 29 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 29 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-01-31 15:00:00,064 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-31 15:00:00,064 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2019-01-31 15:00:00,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-31 15:00:00,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-31 15:00:00,122 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-31 15:00:01,319 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2019-01-31 15:00:01,321 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-01-31 15:00:01,329 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-31 15:00:01,329 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:15, output treesize:14 [2019-01-31 15:00:01,331 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-01-31 15:00:01,331 WARN L398 uantifierElimination]: Input elimination task: ∃ [v_ULTIMATE.start_main_~str2~6_277]. (and (<= ULTIMATE.start_main_~MAX~6 19) (<= 19 ULTIMATE.start_main_~MAX~6) (= (store v_ULTIMATE.start_main_~str2~6_277 18 (select ULTIMATE.start_main_~str1~6 0)) ULTIMATE.start_main_~str2~6)) [2019-01-31 15:00:01,331 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (and (<= ULTIMATE.start_main_~MAX~6 19) (= (select ULTIMATE.start_main_~str1~6 0) (select ULTIMATE.start_main_~str2~6 18)) (<= 19 ULTIMATE.start_main_~MAX~6)) [2019-01-31 15:00:01,399 INFO L273 TraceCheckUtils]: 0: Hoare triple {9697#true} havoc main_#res;havoc main_#t~nondet0, main_#t~nondet2, main_#t~post1, main_#t~post4, main_#t~post3, main_#t~post6, main_#t~post5, main_~MAX~6, main_~str1~6, main_~str2~6, main_~cont~6, main_~i~6, main_~j~6;main_~MAX~6 := (if main_#t~nondet0 % 4294967296 % 4294967296 <= 2147483647 then main_#t~nondet0 % 4294967296 % 4294967296 else main_#t~nondet0 % 4294967296 % 4294967296 - 4294967296);havoc main_#t~nondet0;havoc main_~str1~6;havoc main_~str2~6;havoc main_~cont~6;havoc main_~i~6;havoc main_~j~6;main_~cont~6 := 0;main_~i~6 := 0; {9699#(and (<= ULTIMATE.start_main_~i~6 0) (<= 0 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:00:01,400 INFO L273 TraceCheckUtils]: 1: Hoare triple {9699#(and (<= ULTIMATE.start_main_~i~6 0) (<= 0 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {9700#(and (<= ULTIMATE.start_main_~i~6 1) (<= 1 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:00:01,401 INFO L273 TraceCheckUtils]: 2: Hoare triple {9700#(and (<= ULTIMATE.start_main_~i~6 1) (<= 1 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {9701#(and (<= ULTIMATE.start_main_~i~6 2) (<= 2 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:00:01,401 INFO L273 TraceCheckUtils]: 3: Hoare triple {9701#(and (<= ULTIMATE.start_main_~i~6 2) (<= 2 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {9702#(and (<= 3 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 3))} is VALID [2019-01-31 15:00:01,402 INFO L273 TraceCheckUtils]: 4: Hoare triple {9702#(and (<= 3 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 3))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {9703#(and (<= ULTIMATE.start_main_~i~6 4) (<= 4 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:00:01,402 INFO L273 TraceCheckUtils]: 5: Hoare triple {9703#(and (<= ULTIMATE.start_main_~i~6 4) (<= 4 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {9704#(and (<= 5 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 5))} is VALID [2019-01-31 15:00:01,403 INFO L273 TraceCheckUtils]: 6: Hoare triple {9704#(and (<= 5 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 5))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {9705#(and (<= ULTIMATE.start_main_~i~6 6) (<= 6 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:00:01,404 INFO L273 TraceCheckUtils]: 7: Hoare triple {9705#(and (<= ULTIMATE.start_main_~i~6 6) (<= 6 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {9706#(and (<= 7 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 7))} is VALID [2019-01-31 15:00:01,405 INFO L273 TraceCheckUtils]: 8: Hoare triple {9706#(and (<= 7 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 7))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {9707#(and (<= ULTIMATE.start_main_~i~6 8) (<= 8 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:00:01,406 INFO L273 TraceCheckUtils]: 9: Hoare triple {9707#(and (<= ULTIMATE.start_main_~i~6 8) (<= 8 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {9708#(and (<= ULTIMATE.start_main_~i~6 9) (<= 9 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:00:01,407 INFO L273 TraceCheckUtils]: 10: Hoare triple {9708#(and (<= ULTIMATE.start_main_~i~6 9) (<= 9 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {9709#(and (<= ULTIMATE.start_main_~i~6 10) (<= 10 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:00:01,408 INFO L273 TraceCheckUtils]: 11: Hoare triple {9709#(and (<= ULTIMATE.start_main_~i~6 10) (<= 10 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {9710#(and (<= 11 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 11))} is VALID [2019-01-31 15:00:01,409 INFO L273 TraceCheckUtils]: 12: Hoare triple {9710#(and (<= 11 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 11))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {9711#(and (<= ULTIMATE.start_main_~i~6 12) (<= 12 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:00:01,410 INFO L273 TraceCheckUtils]: 13: Hoare triple {9711#(and (<= ULTIMATE.start_main_~i~6 12) (<= 12 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {9712#(and (<= ULTIMATE.start_main_~i~6 13) (<= 13 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:00:01,411 INFO L273 TraceCheckUtils]: 14: Hoare triple {9712#(and (<= ULTIMATE.start_main_~i~6 13) (<= 13 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {9713#(and (<= ULTIMATE.start_main_~i~6 14) (<= 14 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:00:01,412 INFO L273 TraceCheckUtils]: 15: Hoare triple {9713#(and (<= ULTIMATE.start_main_~i~6 14) (<= 14 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {9714#(and (<= 15 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 15))} is VALID [2019-01-31 15:00:01,413 INFO L273 TraceCheckUtils]: 16: Hoare triple {9714#(and (<= 15 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 15))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {9715#(and (<= 16 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 16))} is VALID [2019-01-31 15:00:01,414 INFO L273 TraceCheckUtils]: 17: Hoare triple {9715#(and (<= 16 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 16))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {9716#(and (<= ULTIMATE.start_main_~i~6 17) (<= 17 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:00:01,415 INFO L273 TraceCheckUtils]: 18: Hoare triple {9716#(and (<= ULTIMATE.start_main_~i~6 17) (<= 17 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {9796#(and (<= ULTIMATE.start_main_~i~6 18) (<= 18 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:00:01,416 INFO L273 TraceCheckUtils]: 19: Hoare triple {9796#(and (<= ULTIMATE.start_main_~i~6 18) (<= 18 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {9800#(and (<= ULTIMATE.start_main_~i~6 19) (<= 19 ULTIMATE.start_main_~MAX~6))} is VALID [2019-01-31 15:00:01,417 INFO L273 TraceCheckUtils]: 20: Hoare triple {9800#(and (<= ULTIMATE.start_main_~i~6 19) (<= 19 ULTIMATE.start_main_~MAX~6))} assume !(main_~i~6 < main_~MAX~6);main_~str1~6 := main_~str1~6[main_~MAX~6 - 1 := 0];main_~j~6 := 0;main_~i~6 := main_~MAX~6 - 1; {9804#(and (<= ULTIMATE.start_main_~MAX~6 19) (<= 19 ULTIMATE.start_main_~MAX~6) (= ULTIMATE.start_main_~j~6 0))} is VALID [2019-01-31 15:00:01,417 INFO L273 TraceCheckUtils]: 21: Hoare triple {9804#(and (<= ULTIMATE.start_main_~MAX~6 19) (<= 19 ULTIMATE.start_main_~MAX~6) (= ULTIMATE.start_main_~j~6 0))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {9808#(and (<= ULTIMATE.start_main_~MAX~6 19) (<= 19 ULTIMATE.start_main_~MAX~6) (= ULTIMATE.start_main_~j~6 1))} is VALID [2019-01-31 15:00:01,418 INFO L273 TraceCheckUtils]: 22: Hoare triple {9808#(and (<= ULTIMATE.start_main_~MAX~6 19) (<= 19 ULTIMATE.start_main_~MAX~6) (= ULTIMATE.start_main_~j~6 1))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {9812#(and (<= ULTIMATE.start_main_~MAX~6 19) (<= 19 ULTIMATE.start_main_~MAX~6) (= ULTIMATE.start_main_~j~6 2))} is VALID [2019-01-31 15:00:01,419 INFO L273 TraceCheckUtils]: 23: Hoare triple {9812#(and (<= ULTIMATE.start_main_~MAX~6 19) (<= 19 ULTIMATE.start_main_~MAX~6) (= ULTIMATE.start_main_~j~6 2))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {9816#(and (<= ULTIMATE.start_main_~MAX~6 19) (<= 19 ULTIMATE.start_main_~MAX~6) (= ULTIMATE.start_main_~j~6 3))} is VALID [2019-01-31 15:00:01,420 INFO L273 TraceCheckUtils]: 24: Hoare triple {9816#(and (<= ULTIMATE.start_main_~MAX~6 19) (<= 19 ULTIMATE.start_main_~MAX~6) (= ULTIMATE.start_main_~j~6 3))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {9820#(and (<= ULTIMATE.start_main_~MAX~6 19) (<= 19 ULTIMATE.start_main_~MAX~6) (= ULTIMATE.start_main_~j~6 4))} is VALID [2019-01-31 15:00:01,421 INFO L273 TraceCheckUtils]: 25: Hoare triple {9820#(and (<= ULTIMATE.start_main_~MAX~6 19) (<= 19 ULTIMATE.start_main_~MAX~6) (= ULTIMATE.start_main_~j~6 4))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {9824#(and (<= ULTIMATE.start_main_~MAX~6 19) (= ULTIMATE.start_main_~j~6 5) (<= 19 ULTIMATE.start_main_~MAX~6))} is VALID [2019-01-31 15:00:01,421 INFO L273 TraceCheckUtils]: 26: Hoare triple {9824#(and (<= ULTIMATE.start_main_~MAX~6 19) (= ULTIMATE.start_main_~j~6 5) (<= 19 ULTIMATE.start_main_~MAX~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {9828#(and (<= ULTIMATE.start_main_~MAX~6 19) (<= 19 ULTIMATE.start_main_~MAX~6) (= ULTIMATE.start_main_~j~6 6))} is VALID [2019-01-31 15:00:01,422 INFO L273 TraceCheckUtils]: 27: Hoare triple {9828#(and (<= ULTIMATE.start_main_~MAX~6 19) (<= 19 ULTIMATE.start_main_~MAX~6) (= ULTIMATE.start_main_~j~6 6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {9832#(and (<= ULTIMATE.start_main_~MAX~6 19) (= ULTIMATE.start_main_~j~6 7) (<= 19 ULTIMATE.start_main_~MAX~6))} is VALID [2019-01-31 15:00:01,423 INFO L273 TraceCheckUtils]: 28: Hoare triple {9832#(and (<= ULTIMATE.start_main_~MAX~6 19) (= ULTIMATE.start_main_~j~6 7) (<= 19 ULTIMATE.start_main_~MAX~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {9836#(and (<= ULTIMATE.start_main_~MAX~6 19) (<= 19 ULTIMATE.start_main_~MAX~6) (= ULTIMATE.start_main_~j~6 8))} is VALID [2019-01-31 15:00:01,424 INFO L273 TraceCheckUtils]: 29: Hoare triple {9836#(and (<= ULTIMATE.start_main_~MAX~6 19) (<= 19 ULTIMATE.start_main_~MAX~6) (= ULTIMATE.start_main_~j~6 8))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {9840#(and (<= ULTIMATE.start_main_~MAX~6 19) (= ULTIMATE.start_main_~j~6 9) (<= 19 ULTIMATE.start_main_~MAX~6))} is VALID [2019-01-31 15:00:01,425 INFO L273 TraceCheckUtils]: 30: Hoare triple {9840#(and (<= ULTIMATE.start_main_~MAX~6 19) (= ULTIMATE.start_main_~j~6 9) (<= 19 ULTIMATE.start_main_~MAX~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {9844#(and (<= ULTIMATE.start_main_~MAX~6 19) (= ULTIMATE.start_main_~j~6 10) (<= 19 ULTIMATE.start_main_~MAX~6))} is VALID [2019-01-31 15:00:01,426 INFO L273 TraceCheckUtils]: 31: Hoare triple {9844#(and (<= ULTIMATE.start_main_~MAX~6 19) (= ULTIMATE.start_main_~j~6 10) (<= 19 ULTIMATE.start_main_~MAX~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {9848#(and (<= ULTIMATE.start_main_~MAX~6 19) (<= 19 ULTIMATE.start_main_~MAX~6) (= ULTIMATE.start_main_~j~6 11))} is VALID [2019-01-31 15:00:01,426 INFO L273 TraceCheckUtils]: 32: Hoare triple {9848#(and (<= ULTIMATE.start_main_~MAX~6 19) (<= 19 ULTIMATE.start_main_~MAX~6) (= ULTIMATE.start_main_~j~6 11))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {9852#(and (<= ULTIMATE.start_main_~MAX~6 19) (= ULTIMATE.start_main_~j~6 12) (<= 19 ULTIMATE.start_main_~MAX~6))} is VALID [2019-01-31 15:00:01,427 INFO L273 TraceCheckUtils]: 33: Hoare triple {9852#(and (<= ULTIMATE.start_main_~MAX~6 19) (= ULTIMATE.start_main_~j~6 12) (<= 19 ULTIMATE.start_main_~MAX~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {9856#(and (<= ULTIMATE.start_main_~MAX~6 19) (<= 19 ULTIMATE.start_main_~MAX~6) (= ULTIMATE.start_main_~j~6 13))} is VALID [2019-01-31 15:00:01,428 INFO L273 TraceCheckUtils]: 34: Hoare triple {9856#(and (<= ULTIMATE.start_main_~MAX~6 19) (<= 19 ULTIMATE.start_main_~MAX~6) (= ULTIMATE.start_main_~j~6 13))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {9860#(and (<= ULTIMATE.start_main_~MAX~6 19) (<= 19 ULTIMATE.start_main_~MAX~6) (= ULTIMATE.start_main_~j~6 14))} is VALID [2019-01-31 15:00:01,429 INFO L273 TraceCheckUtils]: 35: Hoare triple {9860#(and (<= ULTIMATE.start_main_~MAX~6 19) (<= 19 ULTIMATE.start_main_~MAX~6) (= ULTIMATE.start_main_~j~6 14))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {9864#(and (<= ULTIMATE.start_main_~MAX~6 19) (<= 19 ULTIMATE.start_main_~MAX~6) (= ULTIMATE.start_main_~j~6 15))} is VALID [2019-01-31 15:00:01,429 INFO L273 TraceCheckUtils]: 36: Hoare triple {9864#(and (<= ULTIMATE.start_main_~MAX~6 19) (<= 19 ULTIMATE.start_main_~MAX~6) (= ULTIMATE.start_main_~j~6 15))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {9868#(and (<= ULTIMATE.start_main_~MAX~6 19) (<= 19 ULTIMATE.start_main_~MAX~6) (= ULTIMATE.start_main_~j~6 16))} is VALID [2019-01-31 15:00:01,430 INFO L273 TraceCheckUtils]: 37: Hoare triple {9868#(and (<= ULTIMATE.start_main_~MAX~6 19) (<= 19 ULTIMATE.start_main_~MAX~6) (= ULTIMATE.start_main_~j~6 16))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {9872#(and (<= ULTIMATE.start_main_~MAX~6 19) (<= 19 ULTIMATE.start_main_~MAX~6) (= ULTIMATE.start_main_~j~6 17))} is VALID [2019-01-31 15:00:01,431 INFO L273 TraceCheckUtils]: 38: Hoare triple {9872#(and (<= ULTIMATE.start_main_~MAX~6 19) (<= 19 ULTIMATE.start_main_~MAX~6) (= ULTIMATE.start_main_~j~6 17))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {9876#(and (<= ULTIMATE.start_main_~MAX~6 19) (= ULTIMATE.start_main_~j~6 18) (<= 19 ULTIMATE.start_main_~MAX~6))} is VALID [2019-01-31 15:00:01,432 INFO L273 TraceCheckUtils]: 39: Hoare triple {9876#(and (<= ULTIMATE.start_main_~MAX~6 19) (= ULTIMATE.start_main_~j~6 18) (<= 19 ULTIMATE.start_main_~MAX~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {9880#(and (<= ULTIMATE.start_main_~MAX~6 19) (= (select ULTIMATE.start_main_~str1~6 0) (select ULTIMATE.start_main_~str2~6 18)) (<= 19 ULTIMATE.start_main_~MAX~6))} is VALID [2019-01-31 15:00:01,433 INFO L273 TraceCheckUtils]: 40: Hoare triple {9880#(and (<= ULTIMATE.start_main_~MAX~6 19) (= (select ULTIMATE.start_main_~str1~6 0) (select ULTIMATE.start_main_~str2~6 18)) (<= 19 ULTIMATE.start_main_~MAX~6))} assume !(main_~i~6 >= 0);main_~j~6 := main_~MAX~6 - 1;main_~i~6 := 0;assume !!(main_~i~6 < main_~MAX~6);__VERIFIER_assert_#in~cond := (if main_~str1~6[main_~i~6] == main_~str2~6[main_~j~6] then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond;assume __VERIFIER_assert_~cond == 0;assume !false; {9698#false} is VALID [2019-01-31 15:00:01,434 INFO L273 TraceCheckUtils]: 41: Hoare triple {9698#false} assume !false; {9698#false} is VALID [2019-01-31 15:00:01,439 INFO L134 CoverageAnalysis]: Checked inductivity of 380 backedges. 0 proven. 380 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-31 15:00:01,439 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2019-01-31 15:00:01,469 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 5 [2019-01-31 15:00:01,471 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-01-31 15:00:01,473 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-31 15:00:01,474 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:14, output treesize:5 [2019-01-31 15:00:01,475 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-01-31 15:00:01,475 WARN L398 uantifierElimination]: Input elimination task: ∀ [ULTIMATE.start_main_~str2~6, ULTIMATE.start_main_~str1~6]. (let ((.cse0 (select ULTIMATE.start_main_~str1~6 0))) (= .cse0 (select (store ULTIMATE.start_main_~str2~6 ULTIMATE.start_main_~j~6 .cse0) (+ ULTIMATE.start_main_~MAX~6 (- 1))))) [2019-01-31 15:00:01,476 WARN L399 uantifierElimination]: ElimStorePlain result: ∀ []. (= (+ ULTIMATE.start_main_~j~6 1) ULTIMATE.start_main_~MAX~6) [2019-01-31 15:00:02,247 INFO L273 TraceCheckUtils]: 41: Hoare triple {9698#false} assume !false; {9698#false} is VALID [2019-01-31 15:00:02,248 INFO L273 TraceCheckUtils]: 40: Hoare triple {9738#(= (select ULTIMATE.start_main_~str1~6 0) (select ULTIMATE.start_main_~str2~6 (+ ULTIMATE.start_main_~MAX~6 (- 1))))} assume !(main_~i~6 >= 0);main_~j~6 := main_~MAX~6 - 1;main_~i~6 := 0;assume !!(main_~i~6 < main_~MAX~6);__VERIFIER_assert_#in~cond := (if main_~str1~6[main_~i~6] == main_~str2~6[main_~j~6] then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond;assume __VERIFIER_assert_~cond == 0;assume !false; {9698#false} is VALID [2019-01-31 15:00:02,249 INFO L273 TraceCheckUtils]: 39: Hoare triple {9737#(= (+ ULTIMATE.start_main_~j~6 1) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {9738#(= (select ULTIMATE.start_main_~str1~6 0) (select ULTIMATE.start_main_~str2~6 (+ ULTIMATE.start_main_~MAX~6 (- 1))))} is VALID [2019-01-31 15:00:02,250 INFO L273 TraceCheckUtils]: 38: Hoare triple {9736#(= (+ ULTIMATE.start_main_~j~6 2) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {9737#(= (+ ULTIMATE.start_main_~j~6 1) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:00:02,250 INFO L273 TraceCheckUtils]: 37: Hoare triple {9735#(= (+ ULTIMATE.start_main_~j~6 3) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {9736#(= (+ ULTIMATE.start_main_~j~6 2) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:00:02,251 INFO L273 TraceCheckUtils]: 36: Hoare triple {9734#(= (+ ULTIMATE.start_main_~j~6 4) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {9735#(= (+ ULTIMATE.start_main_~j~6 3) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:00:02,251 INFO L273 TraceCheckUtils]: 35: Hoare triple {9733#(= (+ ULTIMATE.start_main_~j~6 5) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {9734#(= (+ ULTIMATE.start_main_~j~6 4) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:00:02,252 INFO L273 TraceCheckUtils]: 34: Hoare triple {9732#(= (+ ULTIMATE.start_main_~j~6 6) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {9733#(= (+ ULTIMATE.start_main_~j~6 5) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:00:02,253 INFO L273 TraceCheckUtils]: 33: Hoare triple {9731#(= (+ ULTIMATE.start_main_~j~6 7) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {9732#(= (+ ULTIMATE.start_main_~j~6 6) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:00:02,254 INFO L273 TraceCheckUtils]: 32: Hoare triple {9730#(= (+ ULTIMATE.start_main_~j~6 8) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {9731#(= (+ ULTIMATE.start_main_~j~6 7) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:00:02,255 INFO L273 TraceCheckUtils]: 31: Hoare triple {9729#(= (+ ULTIMATE.start_main_~j~6 9) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {9730#(= (+ ULTIMATE.start_main_~j~6 8) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:00:02,256 INFO L273 TraceCheckUtils]: 30: Hoare triple {9728#(= (+ ULTIMATE.start_main_~j~6 10) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {9729#(= (+ ULTIMATE.start_main_~j~6 9) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:00:02,257 INFO L273 TraceCheckUtils]: 29: Hoare triple {9727#(= (+ ULTIMATE.start_main_~j~6 11) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {9728#(= (+ ULTIMATE.start_main_~j~6 10) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:00:02,258 INFO L273 TraceCheckUtils]: 28: Hoare triple {9726#(= (+ ULTIMATE.start_main_~j~6 12) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {9727#(= (+ ULTIMATE.start_main_~j~6 11) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:00:02,259 INFO L273 TraceCheckUtils]: 27: Hoare triple {9725#(= (+ ULTIMATE.start_main_~j~6 13) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {9726#(= (+ ULTIMATE.start_main_~j~6 12) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:00:02,260 INFO L273 TraceCheckUtils]: 26: Hoare triple {9724#(= (+ ULTIMATE.start_main_~j~6 14) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {9725#(= (+ ULTIMATE.start_main_~j~6 13) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:00:02,260 INFO L273 TraceCheckUtils]: 25: Hoare triple {9723#(= (+ ULTIMATE.start_main_~j~6 15) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {9724#(= (+ ULTIMATE.start_main_~j~6 14) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:00:02,261 INFO L273 TraceCheckUtils]: 24: Hoare triple {9722#(= (+ ULTIMATE.start_main_~j~6 16) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {9723#(= (+ ULTIMATE.start_main_~j~6 15) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:00:02,262 INFO L273 TraceCheckUtils]: 23: Hoare triple {9721#(= (+ ULTIMATE.start_main_~j~6 17) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {9722#(= (+ ULTIMATE.start_main_~j~6 16) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:00:02,263 INFO L273 TraceCheckUtils]: 22: Hoare triple {9720#(= (+ ULTIMATE.start_main_~j~6 18) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {9721#(= (+ ULTIMATE.start_main_~j~6 17) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:00:02,264 INFO L273 TraceCheckUtils]: 21: Hoare triple {9719#(= (+ ULTIMATE.start_main_~j~6 19) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {9720#(= (+ ULTIMATE.start_main_~j~6 18) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:00:02,265 INFO L273 TraceCheckUtils]: 20: Hoare triple {9718#(or (= 19 ULTIMATE.start_main_~MAX~6) (<= (+ ULTIMATE.start_main_~i~6 1) ULTIMATE.start_main_~MAX~6))} assume !(main_~i~6 < main_~MAX~6);main_~str1~6 := main_~str1~6[main_~MAX~6 - 1 := 0];main_~j~6 := 0;main_~i~6 := main_~MAX~6 - 1; {9719#(= (+ ULTIMATE.start_main_~j~6 19) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:00:02,266 INFO L273 TraceCheckUtils]: 19: Hoare triple {9796#(and (<= ULTIMATE.start_main_~i~6 18) (<= 18 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {9718#(or (= 19 ULTIMATE.start_main_~MAX~6) (<= (+ ULTIMATE.start_main_~i~6 1) ULTIMATE.start_main_~MAX~6))} is VALID [2019-01-31 15:00:02,267 INFO L273 TraceCheckUtils]: 18: Hoare triple {9716#(and (<= ULTIMATE.start_main_~i~6 17) (<= 17 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {9796#(and (<= ULTIMATE.start_main_~i~6 18) (<= 18 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:00:02,268 INFO L273 TraceCheckUtils]: 17: Hoare triple {9715#(and (<= 16 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 16))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {9716#(and (<= ULTIMATE.start_main_~i~6 17) (<= 17 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:00:02,269 INFO L273 TraceCheckUtils]: 16: Hoare triple {9714#(and (<= 15 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 15))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {9715#(and (<= 16 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 16))} is VALID [2019-01-31 15:00:02,270 INFO L273 TraceCheckUtils]: 15: Hoare triple {9713#(and (<= ULTIMATE.start_main_~i~6 14) (<= 14 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {9714#(and (<= 15 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 15))} is VALID [2019-01-31 15:00:02,271 INFO L273 TraceCheckUtils]: 14: Hoare triple {9712#(and (<= ULTIMATE.start_main_~i~6 13) (<= 13 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {9713#(and (<= ULTIMATE.start_main_~i~6 14) (<= 14 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:00:02,272 INFO L273 TraceCheckUtils]: 13: Hoare triple {9711#(and (<= ULTIMATE.start_main_~i~6 12) (<= 12 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {9712#(and (<= ULTIMATE.start_main_~i~6 13) (<= 13 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:00:02,273 INFO L273 TraceCheckUtils]: 12: Hoare triple {9710#(and (<= 11 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 11))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {9711#(and (<= ULTIMATE.start_main_~i~6 12) (<= 12 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:00:02,274 INFO L273 TraceCheckUtils]: 11: Hoare triple {9709#(and (<= ULTIMATE.start_main_~i~6 10) (<= 10 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {9710#(and (<= 11 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 11))} is VALID [2019-01-31 15:00:02,275 INFO L273 TraceCheckUtils]: 10: Hoare triple {9708#(and (<= ULTIMATE.start_main_~i~6 9) (<= 9 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {9709#(and (<= ULTIMATE.start_main_~i~6 10) (<= 10 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:00:02,276 INFO L273 TraceCheckUtils]: 9: Hoare triple {9707#(and (<= ULTIMATE.start_main_~i~6 8) (<= 8 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {9708#(and (<= ULTIMATE.start_main_~i~6 9) (<= 9 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:00:02,277 INFO L273 TraceCheckUtils]: 8: Hoare triple {9706#(and (<= 7 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 7))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {9707#(and (<= ULTIMATE.start_main_~i~6 8) (<= 8 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:00:02,278 INFO L273 TraceCheckUtils]: 7: Hoare triple {9705#(and (<= ULTIMATE.start_main_~i~6 6) (<= 6 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {9706#(and (<= 7 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 7))} is VALID [2019-01-31 15:00:02,279 INFO L273 TraceCheckUtils]: 6: Hoare triple {9704#(and (<= 5 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 5))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {9705#(and (<= ULTIMATE.start_main_~i~6 6) (<= 6 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:00:02,280 INFO L273 TraceCheckUtils]: 5: Hoare triple {9703#(and (<= ULTIMATE.start_main_~i~6 4) (<= 4 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {9704#(and (<= 5 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 5))} is VALID [2019-01-31 15:00:02,281 INFO L273 TraceCheckUtils]: 4: Hoare triple {9702#(and (<= 3 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 3))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {9703#(and (<= ULTIMATE.start_main_~i~6 4) (<= 4 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:00:02,282 INFO L273 TraceCheckUtils]: 3: Hoare triple {9701#(and (<= ULTIMATE.start_main_~i~6 2) (<= 2 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {9702#(and (<= 3 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 3))} is VALID [2019-01-31 15:00:02,283 INFO L273 TraceCheckUtils]: 2: Hoare triple {9700#(and (<= ULTIMATE.start_main_~i~6 1) (<= 1 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {9701#(and (<= ULTIMATE.start_main_~i~6 2) (<= 2 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:00:02,284 INFO L273 TraceCheckUtils]: 1: Hoare triple {9699#(and (<= ULTIMATE.start_main_~i~6 0) (<= 0 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {9700#(and (<= ULTIMATE.start_main_~i~6 1) (<= 1 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:00:02,285 INFO L273 TraceCheckUtils]: 0: Hoare triple {9697#true} havoc main_#res;havoc main_#t~nondet0, main_#t~nondet2, main_#t~post1, main_#t~post4, main_#t~post3, main_#t~post6, main_#t~post5, main_~MAX~6, main_~str1~6, main_~str2~6, main_~cont~6, main_~i~6, main_~j~6;main_~MAX~6 := (if main_#t~nondet0 % 4294967296 % 4294967296 <= 2147483647 then main_#t~nondet0 % 4294967296 % 4294967296 else main_#t~nondet0 % 4294967296 % 4294967296 - 4294967296);havoc main_#t~nondet0;havoc main_~str1~6;havoc main_~str2~6;havoc main_~cont~6;havoc main_~i~6;havoc main_~j~6;main_~cont~6 := 0;main_~i~6 := 0; {9699#(and (<= ULTIMATE.start_main_~i~6 0) (<= 0 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:00:02,288 INFO L134 CoverageAnalysis]: Checked inductivity of 380 backedges. 0 proven. 380 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-31 15:00:02,307 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-01-31 15:00:02,307 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [41, 41, 41] total 63 [2019-01-31 15:00:02,307 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-01-31 15:00:02,307 INFO L78 Accepts]: Start accepts. Automaton has 64 states. Word has length 42 [2019-01-31 15:00:02,308 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-01-31 15:00:02,308 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 64 states. [2019-01-31 15:00:02,370 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 65 edges. 65 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-01-31 15:00:02,370 INFO L459 AbstractCegarLoop]: Interpolant automaton has 64 states [2019-01-31 15:00:02,371 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 64 interpolants. [2019-01-31 15:00:02,371 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=187, Invalid=3845, Unknown=0, NotChecked=0, Total=4032 [2019-01-31 15:00:02,371 INFO L87 Difference]: Start difference. First operand 43 states and 44 transitions. Second operand 64 states. [2019-01-31 15:00:10,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 15:00:10,168 INFO L93 Difference]: Finished difference Result 66 states and 68 transitions. [2019-01-31 15:00:10,168 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2019-01-31 15:00:10,168 INFO L78 Accepts]: Start accepts. Automaton has 64 states. Word has length 42 [2019-01-31 15:00:10,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-31 15:00:10,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64 states. [2019-01-31 15:00:10,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 50 transitions. [2019-01-31 15:00:10,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64 states. [2019-01-31 15:00:10,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 50 transitions. [2019-01-31 15:00:10,171 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 45 states and 50 transitions. [2019-01-31 15:00:10,283 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 50 edges. 50 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-01-31 15:00:10,284 INFO L225 Difference]: With dead ends: 66 [2019-01-31 15:00:10,284 INFO L226 Difference]: Without dead ends: 44 [2019-01-31 15:00:10,286 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 47 SyntacticMatches, 14 SemanticMatches, 84 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1145 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=396, Invalid=6914, Unknown=0, NotChecked=0, Total=7310 [2019-01-31 15:00:10,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2019-01-31 15:00:10,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2019-01-31 15:00:10,999 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-01-31 15:00:10,999 INFO L82 GeneralOperation]: Start isEquivalent. First operand 44 states. Second operand 44 states. [2019-01-31 15:00:10,999 INFO L74 IsIncluded]: Start isIncluded. First operand 44 states. Second operand 44 states. [2019-01-31 15:00:10,999 INFO L87 Difference]: Start difference. First operand 44 states. Second operand 44 states. [2019-01-31 15:00:11,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 15:00:11,000 INFO L93 Difference]: Finished difference Result 44 states and 45 transitions. [2019-01-31 15:00:11,000 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 45 transitions. [2019-01-31 15:00:11,001 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-31 15:00:11,001 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-01-31 15:00:11,001 INFO L74 IsIncluded]: Start isIncluded. First operand 44 states. Second operand 44 states. [2019-01-31 15:00:11,001 INFO L87 Difference]: Start difference. First operand 44 states. Second operand 44 states. [2019-01-31 15:00:11,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 15:00:11,001 INFO L93 Difference]: Finished difference Result 44 states and 45 transitions. [2019-01-31 15:00:11,002 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 45 transitions. [2019-01-31 15:00:11,002 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-31 15:00:11,002 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-01-31 15:00:11,002 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-01-31 15:00:11,002 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-01-31 15:00:11,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2019-01-31 15:00:11,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 45 transitions. [2019-01-31 15:00:11,003 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 45 transitions. Word has length 42 [2019-01-31 15:00:11,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-31 15:00:11,003 INFO L480 AbstractCegarLoop]: Abstraction has 44 states and 45 transitions. [2019-01-31 15:00:11,003 INFO L481 AbstractCegarLoop]: Interpolant automaton has 64 states. [2019-01-31 15:00:11,003 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 45 transitions. [2019-01-31 15:00:11,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2019-01-31 15:00:11,004 INFO L394 BasicCegarLoop]: Found error trace [2019-01-31 15:00:11,004 INFO L402 BasicCegarLoop]: trace histogram [20, 19, 1, 1, 1, 1] [2019-01-31 15:00:11,004 INFO L423 AbstractCegarLoop]: === Iteration 31 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2019-01-31 15:00:11,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-31 15:00:11,004 INFO L82 PathProgramCache]: Analyzing trace with hash -392135284, now seen corresponding path program 29 times [2019-01-31 15:00:11,004 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-01-31 15:00:11,005 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-31 15:00:11,005 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-31 15:00:11,005 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-31 15:00:11,005 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-01-31 15:00:11,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-31 15:00:11,746 INFO L273 TraceCheckUtils]: 0: Hoare triple {10356#true} havoc main_#res;havoc main_#t~nondet0, main_#t~nondet2, main_#t~post1, main_#t~post4, main_#t~post3, main_#t~post6, main_#t~post5, main_~MAX~6, main_~str1~6, main_~str2~6, main_~cont~6, main_~i~6, main_~j~6;main_~MAX~6 := (if main_#t~nondet0 % 4294967296 % 4294967296 <= 2147483647 then main_#t~nondet0 % 4294967296 % 4294967296 else main_#t~nondet0 % 4294967296 % 4294967296 - 4294967296);havoc main_#t~nondet0;havoc main_~str1~6;havoc main_~str2~6;havoc main_~cont~6;havoc main_~i~6;havoc main_~j~6;main_~cont~6 := 0;main_~i~6 := 0; {10358#(<= 0 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:00:11,747 INFO L273 TraceCheckUtils]: 1: Hoare triple {10358#(<= 0 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {10359#(<= 1 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:00:11,748 INFO L273 TraceCheckUtils]: 2: Hoare triple {10359#(<= 1 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {10360#(<= 2 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:00:11,749 INFO L273 TraceCheckUtils]: 3: Hoare triple {10360#(<= 2 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {10361#(<= 3 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:00:11,750 INFO L273 TraceCheckUtils]: 4: Hoare triple {10361#(<= 3 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {10362#(<= 4 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:00:11,751 INFO L273 TraceCheckUtils]: 5: Hoare triple {10362#(<= 4 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {10363#(<= 5 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:00:11,752 INFO L273 TraceCheckUtils]: 6: Hoare triple {10363#(<= 5 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {10364#(<= 6 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:00:11,753 INFO L273 TraceCheckUtils]: 7: Hoare triple {10364#(<= 6 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {10365#(<= 7 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:00:11,754 INFO L273 TraceCheckUtils]: 8: Hoare triple {10365#(<= 7 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {10366#(<= 8 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:00:11,755 INFO L273 TraceCheckUtils]: 9: Hoare triple {10366#(<= 8 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {10367#(<= 9 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:00:11,755 INFO L273 TraceCheckUtils]: 10: Hoare triple {10367#(<= 9 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {10368#(<= 10 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:00:11,756 INFO L273 TraceCheckUtils]: 11: Hoare triple {10368#(<= 10 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {10369#(<= 11 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:00:11,757 INFO L273 TraceCheckUtils]: 12: Hoare triple {10369#(<= 11 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {10370#(<= 12 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:00:11,758 INFO L273 TraceCheckUtils]: 13: Hoare triple {10370#(<= 12 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {10371#(<= 13 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:00:11,759 INFO L273 TraceCheckUtils]: 14: Hoare triple {10371#(<= 13 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {10372#(<= 14 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:00:11,760 INFO L273 TraceCheckUtils]: 15: Hoare triple {10372#(<= 14 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {10373#(<= 15 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:00:11,761 INFO L273 TraceCheckUtils]: 16: Hoare triple {10373#(<= 15 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {10374#(<= 16 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:00:11,761 INFO L273 TraceCheckUtils]: 17: Hoare triple {10374#(<= 16 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {10375#(<= 17 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:00:11,762 INFO L273 TraceCheckUtils]: 18: Hoare triple {10375#(<= 17 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {10376#(<= 18 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:00:11,763 INFO L273 TraceCheckUtils]: 19: Hoare triple {10376#(<= 18 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {10377#(<= 19 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:00:11,764 INFO L273 TraceCheckUtils]: 20: Hoare triple {10377#(<= 19 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {10378#(<= 20 ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:00:11,765 INFO L273 TraceCheckUtils]: 21: Hoare triple {10378#(<= 20 ULTIMATE.start_main_~MAX~6)} assume !(main_~i~6 < main_~MAX~6);main_~str1~6 := main_~str1~6[main_~MAX~6 - 1 := 0];main_~j~6 := 0;main_~i~6 := main_~MAX~6 - 1; {10377#(<= 19 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:00:11,766 INFO L273 TraceCheckUtils]: 22: Hoare triple {10377#(<= 19 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {10376#(<= 18 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:00:11,767 INFO L273 TraceCheckUtils]: 23: Hoare triple {10376#(<= 18 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {10375#(<= 17 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:00:11,768 INFO L273 TraceCheckUtils]: 24: Hoare triple {10375#(<= 17 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {10374#(<= 16 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:00:11,769 INFO L273 TraceCheckUtils]: 25: Hoare triple {10374#(<= 16 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {10373#(<= 15 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:00:11,770 INFO L273 TraceCheckUtils]: 26: Hoare triple {10373#(<= 15 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {10372#(<= 14 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:00:11,770 INFO L273 TraceCheckUtils]: 27: Hoare triple {10372#(<= 14 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {10371#(<= 13 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:00:11,771 INFO L273 TraceCheckUtils]: 28: Hoare triple {10371#(<= 13 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {10370#(<= 12 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:00:11,772 INFO L273 TraceCheckUtils]: 29: Hoare triple {10370#(<= 12 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {10369#(<= 11 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:00:11,773 INFO L273 TraceCheckUtils]: 30: Hoare triple {10369#(<= 11 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {10368#(<= 10 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:00:11,774 INFO L273 TraceCheckUtils]: 31: Hoare triple {10368#(<= 10 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {10367#(<= 9 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:00:11,775 INFO L273 TraceCheckUtils]: 32: Hoare triple {10367#(<= 9 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {10366#(<= 8 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:00:11,776 INFO L273 TraceCheckUtils]: 33: Hoare triple {10366#(<= 8 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {10365#(<= 7 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:00:11,777 INFO L273 TraceCheckUtils]: 34: Hoare triple {10365#(<= 7 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {10364#(<= 6 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:00:11,777 INFO L273 TraceCheckUtils]: 35: Hoare triple {10364#(<= 6 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {10363#(<= 5 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:00:11,778 INFO L273 TraceCheckUtils]: 36: Hoare triple {10363#(<= 5 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {10362#(<= 4 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:00:11,779 INFO L273 TraceCheckUtils]: 37: Hoare triple {10362#(<= 4 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {10361#(<= 3 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:00:11,780 INFO L273 TraceCheckUtils]: 38: Hoare triple {10361#(<= 3 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {10360#(<= 2 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:00:11,781 INFO L273 TraceCheckUtils]: 39: Hoare triple {10360#(<= 2 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {10359#(<= 1 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:00:11,782 INFO L273 TraceCheckUtils]: 40: Hoare triple {10359#(<= 1 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {10358#(<= 0 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:00:11,782 INFO L273 TraceCheckUtils]: 41: Hoare triple {10358#(<= 0 ULTIMATE.start_main_~i~6)} assume !(main_~i~6 >= 0);main_~j~6 := main_~MAX~6 - 1;main_~i~6 := 0;assume !!(main_~i~6 < main_~MAX~6);__VERIFIER_assert_#in~cond := (if main_~str1~6[main_~i~6] == main_~str2~6[main_~j~6] then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond;assume __VERIFIER_assert_~cond == 0;assume !false; {10357#false} is VALID [2019-01-31 15:00:11,782 INFO L273 TraceCheckUtils]: 42: Hoare triple {10357#false} assume !false; {10357#false} is VALID [2019-01-31 15:00:11,785 INFO L134 CoverageAnalysis]: Checked inductivity of 400 backedges. 190 proven. 210 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-31 15:00:11,785 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-31 15:00:11,785 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-01-31 15:00:11,786 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-01-31 15:00:11,786 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-01-31 15:00:11,786 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-31 15:00:11,786 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 30 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 30 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-01-31 15:00:11,795 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2019-01-31 15:00:11,795 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST2 (IT: FPandBP) [2019-01-31 15:00:11,880 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2019-01-31 15:00:11,880 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-01-31 15:00:11,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-31 15:00:11,898 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-31 15:00:12,216 INFO L273 TraceCheckUtils]: 0: Hoare triple {10356#true} havoc main_#res;havoc main_#t~nondet0, main_#t~nondet2, main_#t~post1, main_#t~post4, main_#t~post3, main_#t~post6, main_#t~post5, main_~MAX~6, main_~str1~6, main_~str2~6, main_~cont~6, main_~i~6, main_~j~6;main_~MAX~6 := (if main_#t~nondet0 % 4294967296 % 4294967296 <= 2147483647 then main_#t~nondet0 % 4294967296 % 4294967296 else main_#t~nondet0 % 4294967296 % 4294967296 - 4294967296);havoc main_#t~nondet0;havoc main_~str1~6;havoc main_~str2~6;havoc main_~cont~6;havoc main_~i~6;havoc main_~j~6;main_~cont~6 := 0;main_~i~6 := 0; {10358#(<= 0 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:00:12,217 INFO L273 TraceCheckUtils]: 1: Hoare triple {10358#(<= 0 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {10359#(<= 1 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:00:12,218 INFO L273 TraceCheckUtils]: 2: Hoare triple {10359#(<= 1 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {10360#(<= 2 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:00:12,219 INFO L273 TraceCheckUtils]: 3: Hoare triple {10360#(<= 2 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {10361#(<= 3 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:00:12,220 INFO L273 TraceCheckUtils]: 4: Hoare triple {10361#(<= 3 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {10362#(<= 4 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:00:12,221 INFO L273 TraceCheckUtils]: 5: Hoare triple {10362#(<= 4 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {10363#(<= 5 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:00:12,221 INFO L273 TraceCheckUtils]: 6: Hoare triple {10363#(<= 5 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {10364#(<= 6 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:00:12,222 INFO L273 TraceCheckUtils]: 7: Hoare triple {10364#(<= 6 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {10365#(<= 7 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:00:12,223 INFO L273 TraceCheckUtils]: 8: Hoare triple {10365#(<= 7 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {10366#(<= 8 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:00:12,224 INFO L273 TraceCheckUtils]: 9: Hoare triple {10366#(<= 8 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {10367#(<= 9 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:00:12,225 INFO L273 TraceCheckUtils]: 10: Hoare triple {10367#(<= 9 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {10368#(<= 10 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:00:12,226 INFO L273 TraceCheckUtils]: 11: Hoare triple {10368#(<= 10 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {10369#(<= 11 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:00:12,227 INFO L273 TraceCheckUtils]: 12: Hoare triple {10369#(<= 11 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {10370#(<= 12 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:00:12,228 INFO L273 TraceCheckUtils]: 13: Hoare triple {10370#(<= 12 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {10371#(<= 13 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:00:12,229 INFO L273 TraceCheckUtils]: 14: Hoare triple {10371#(<= 13 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {10372#(<= 14 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:00:12,230 INFO L273 TraceCheckUtils]: 15: Hoare triple {10372#(<= 14 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {10373#(<= 15 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:00:12,230 INFO L273 TraceCheckUtils]: 16: Hoare triple {10373#(<= 15 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {10374#(<= 16 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:00:12,231 INFO L273 TraceCheckUtils]: 17: Hoare triple {10374#(<= 16 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {10375#(<= 17 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:00:12,232 INFO L273 TraceCheckUtils]: 18: Hoare triple {10375#(<= 17 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {10376#(<= 18 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:00:12,233 INFO L273 TraceCheckUtils]: 19: Hoare triple {10376#(<= 18 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {10377#(<= 19 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:00:12,234 INFO L273 TraceCheckUtils]: 20: Hoare triple {10377#(<= 19 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {10378#(<= 20 ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:00:12,235 INFO L273 TraceCheckUtils]: 21: Hoare triple {10378#(<= 20 ULTIMATE.start_main_~MAX~6)} assume !(main_~i~6 < main_~MAX~6);main_~str1~6 := main_~str1~6[main_~MAX~6 - 1 := 0];main_~j~6 := 0;main_~i~6 := main_~MAX~6 - 1; {10377#(<= 19 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:00:12,236 INFO L273 TraceCheckUtils]: 22: Hoare triple {10377#(<= 19 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {10376#(<= 18 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:00:12,237 INFO L273 TraceCheckUtils]: 23: Hoare triple {10376#(<= 18 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {10375#(<= 17 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:00:12,237 INFO L273 TraceCheckUtils]: 24: Hoare triple {10375#(<= 17 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {10374#(<= 16 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:00:12,238 INFO L273 TraceCheckUtils]: 25: Hoare triple {10374#(<= 16 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {10373#(<= 15 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:00:12,239 INFO L273 TraceCheckUtils]: 26: Hoare triple {10373#(<= 15 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {10372#(<= 14 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:00:12,240 INFO L273 TraceCheckUtils]: 27: Hoare triple {10372#(<= 14 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {10371#(<= 13 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:00:12,241 INFO L273 TraceCheckUtils]: 28: Hoare triple {10371#(<= 13 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {10370#(<= 12 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:00:12,242 INFO L273 TraceCheckUtils]: 29: Hoare triple {10370#(<= 12 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {10369#(<= 11 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:00:12,243 INFO L273 TraceCheckUtils]: 30: Hoare triple {10369#(<= 11 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {10368#(<= 10 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:00:12,244 INFO L273 TraceCheckUtils]: 31: Hoare triple {10368#(<= 10 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {10367#(<= 9 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:00:12,244 INFO L273 TraceCheckUtils]: 32: Hoare triple {10367#(<= 9 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {10366#(<= 8 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:00:12,245 INFO L273 TraceCheckUtils]: 33: Hoare triple {10366#(<= 8 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {10365#(<= 7 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:00:12,246 INFO L273 TraceCheckUtils]: 34: Hoare triple {10365#(<= 7 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {10364#(<= 6 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:00:12,247 INFO L273 TraceCheckUtils]: 35: Hoare triple {10364#(<= 6 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {10363#(<= 5 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:00:12,248 INFO L273 TraceCheckUtils]: 36: Hoare triple {10363#(<= 5 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {10362#(<= 4 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:00:12,249 INFO L273 TraceCheckUtils]: 37: Hoare triple {10362#(<= 4 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {10361#(<= 3 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:00:12,250 INFO L273 TraceCheckUtils]: 38: Hoare triple {10361#(<= 3 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {10360#(<= 2 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:00:12,250 INFO L273 TraceCheckUtils]: 39: Hoare triple {10360#(<= 2 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {10359#(<= 1 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:00:12,251 INFO L273 TraceCheckUtils]: 40: Hoare triple {10359#(<= 1 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {10358#(<= 0 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:00:12,252 INFO L273 TraceCheckUtils]: 41: Hoare triple {10358#(<= 0 ULTIMATE.start_main_~i~6)} assume !(main_~i~6 >= 0);main_~j~6 := main_~MAX~6 - 1;main_~i~6 := 0;assume !!(main_~i~6 < main_~MAX~6);__VERIFIER_assert_#in~cond := (if main_~str1~6[main_~i~6] == main_~str2~6[main_~j~6] then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond;assume __VERIFIER_assert_~cond == 0;assume !false; {10357#false} is VALID [2019-01-31 15:00:12,252 INFO L273 TraceCheckUtils]: 42: Hoare triple {10357#false} assume !false; {10357#false} is VALID [2019-01-31 15:00:12,255 INFO L134 CoverageAnalysis]: Checked inductivity of 400 backedges. 190 proven. 210 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-31 15:00:12,255 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2019-01-31 15:00:12,800 INFO L273 TraceCheckUtils]: 42: Hoare triple {10357#false} assume !false; {10357#false} is VALID [2019-01-31 15:00:12,801 INFO L273 TraceCheckUtils]: 41: Hoare triple {10358#(<= 0 ULTIMATE.start_main_~i~6)} assume !(main_~i~6 >= 0);main_~j~6 := main_~MAX~6 - 1;main_~i~6 := 0;assume !!(main_~i~6 < main_~MAX~6);__VERIFIER_assert_#in~cond := (if main_~str1~6[main_~i~6] == main_~str2~6[main_~j~6] then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond;assume __VERIFIER_assert_~cond == 0;assume !false; {10357#false} is VALID [2019-01-31 15:00:12,801 INFO L273 TraceCheckUtils]: 40: Hoare triple {10359#(<= 1 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {10358#(<= 0 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:00:12,802 INFO L273 TraceCheckUtils]: 39: Hoare triple {10360#(<= 2 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {10359#(<= 1 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:00:12,803 INFO L273 TraceCheckUtils]: 38: Hoare triple {10361#(<= 3 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {10360#(<= 2 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:00:12,803 INFO L273 TraceCheckUtils]: 37: Hoare triple {10362#(<= 4 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {10361#(<= 3 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:00:12,804 INFO L273 TraceCheckUtils]: 36: Hoare triple {10363#(<= 5 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {10362#(<= 4 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:00:12,804 INFO L273 TraceCheckUtils]: 35: Hoare triple {10364#(<= 6 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {10363#(<= 5 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:00:12,805 INFO L273 TraceCheckUtils]: 34: Hoare triple {10365#(<= 7 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {10364#(<= 6 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:00:12,806 INFO L273 TraceCheckUtils]: 33: Hoare triple {10366#(<= 8 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {10365#(<= 7 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:00:12,807 INFO L273 TraceCheckUtils]: 32: Hoare triple {10367#(<= 9 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {10366#(<= 8 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:00:12,808 INFO L273 TraceCheckUtils]: 31: Hoare triple {10368#(<= 10 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {10367#(<= 9 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:00:12,808 INFO L273 TraceCheckUtils]: 30: Hoare triple {10369#(<= 11 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {10368#(<= 10 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:00:12,809 INFO L273 TraceCheckUtils]: 29: Hoare triple {10370#(<= 12 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {10369#(<= 11 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:00:12,810 INFO L273 TraceCheckUtils]: 28: Hoare triple {10371#(<= 13 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {10370#(<= 12 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:00:12,811 INFO L273 TraceCheckUtils]: 27: Hoare triple {10372#(<= 14 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {10371#(<= 13 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:00:12,812 INFO L273 TraceCheckUtils]: 26: Hoare triple {10373#(<= 15 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {10372#(<= 14 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:00:12,813 INFO L273 TraceCheckUtils]: 25: Hoare triple {10374#(<= 16 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {10373#(<= 15 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:00:12,814 INFO L273 TraceCheckUtils]: 24: Hoare triple {10375#(<= 17 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {10374#(<= 16 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:00:12,815 INFO L273 TraceCheckUtils]: 23: Hoare triple {10376#(<= 18 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {10375#(<= 17 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:00:12,815 INFO L273 TraceCheckUtils]: 22: Hoare triple {10377#(<= 19 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {10376#(<= 18 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:00:12,816 INFO L273 TraceCheckUtils]: 21: Hoare triple {10378#(<= 20 ULTIMATE.start_main_~MAX~6)} assume !(main_~i~6 < main_~MAX~6);main_~str1~6 := main_~str1~6[main_~MAX~6 - 1 := 0];main_~j~6 := 0;main_~i~6 := main_~MAX~6 - 1; {10377#(<= 19 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:00:12,817 INFO L273 TraceCheckUtils]: 20: Hoare triple {10377#(<= 19 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {10378#(<= 20 ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:00:12,818 INFO L273 TraceCheckUtils]: 19: Hoare triple {10376#(<= 18 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {10377#(<= 19 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:00:12,819 INFO L273 TraceCheckUtils]: 18: Hoare triple {10375#(<= 17 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {10376#(<= 18 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:00:12,820 INFO L273 TraceCheckUtils]: 17: Hoare triple {10374#(<= 16 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {10375#(<= 17 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:00:12,821 INFO L273 TraceCheckUtils]: 16: Hoare triple {10373#(<= 15 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {10374#(<= 16 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:00:12,822 INFO L273 TraceCheckUtils]: 15: Hoare triple {10372#(<= 14 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {10373#(<= 15 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:00:12,822 INFO L273 TraceCheckUtils]: 14: Hoare triple {10371#(<= 13 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {10372#(<= 14 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:00:12,823 INFO L273 TraceCheckUtils]: 13: Hoare triple {10370#(<= 12 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {10371#(<= 13 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:00:12,824 INFO L273 TraceCheckUtils]: 12: Hoare triple {10369#(<= 11 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {10370#(<= 12 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:00:12,825 INFO L273 TraceCheckUtils]: 11: Hoare triple {10368#(<= 10 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {10369#(<= 11 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:00:12,826 INFO L273 TraceCheckUtils]: 10: Hoare triple {10367#(<= 9 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {10368#(<= 10 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:00:12,827 INFO L273 TraceCheckUtils]: 9: Hoare triple {10366#(<= 8 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {10367#(<= 9 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:00:12,828 INFO L273 TraceCheckUtils]: 8: Hoare triple {10365#(<= 7 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {10366#(<= 8 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:00:12,828 INFO L273 TraceCheckUtils]: 7: Hoare triple {10364#(<= 6 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {10365#(<= 7 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:00:12,829 INFO L273 TraceCheckUtils]: 6: Hoare triple {10363#(<= 5 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {10364#(<= 6 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:00:12,830 INFO L273 TraceCheckUtils]: 5: Hoare triple {10362#(<= 4 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {10363#(<= 5 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:00:12,831 INFO L273 TraceCheckUtils]: 4: Hoare triple {10361#(<= 3 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {10362#(<= 4 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:00:12,832 INFO L273 TraceCheckUtils]: 3: Hoare triple {10360#(<= 2 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {10361#(<= 3 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:00:12,833 INFO L273 TraceCheckUtils]: 2: Hoare triple {10359#(<= 1 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {10360#(<= 2 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:00:12,834 INFO L273 TraceCheckUtils]: 1: Hoare triple {10358#(<= 0 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {10359#(<= 1 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:00:12,834 INFO L273 TraceCheckUtils]: 0: Hoare triple {10356#true} havoc main_#res;havoc main_#t~nondet0, main_#t~nondet2, main_#t~post1, main_#t~post4, main_#t~post3, main_#t~post6, main_#t~post5, main_~MAX~6, main_~str1~6, main_~str2~6, main_~cont~6, main_~i~6, main_~j~6;main_~MAX~6 := (if main_#t~nondet0 % 4294967296 % 4294967296 <= 2147483647 then main_#t~nondet0 % 4294967296 % 4294967296 else main_#t~nondet0 % 4294967296 % 4294967296 - 4294967296);havoc main_#t~nondet0;havoc main_~str1~6;havoc main_~str2~6;havoc main_~cont~6;havoc main_~i~6;havoc main_~j~6;main_~cont~6 := 0;main_~i~6 := 0; {10358#(<= 0 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:00:12,837 INFO L134 CoverageAnalysis]: Checked inductivity of 400 backedges. 190 proven. 210 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-31 15:00:12,856 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-01-31 15:00:12,856 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 22, 22] total 22 [2019-01-31 15:00:12,856 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-01-31 15:00:12,856 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 43 [2019-01-31 15:00:12,857 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-01-31 15:00:12,857 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 23 states. [2019-01-31 15:00:12,906 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 43 edges. 43 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-01-31 15:00:12,906 INFO L459 AbstractCegarLoop]: Interpolant automaton has 23 states [2019-01-31 15:00:12,906 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2019-01-31 15:00:12,906 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=233, Invalid=273, Unknown=0, NotChecked=0, Total=506 [2019-01-31 15:00:12,907 INFO L87 Difference]: Start difference. First operand 44 states and 45 transitions. Second operand 23 states. [2019-01-31 15:00:14,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 15:00:14,150 INFO L93 Difference]: Finished difference Result 47 states and 48 transitions. [2019-01-31 15:00:14,150 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2019-01-31 15:00:14,150 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 43 [2019-01-31 15:00:14,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-31 15:00:14,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2019-01-31 15:00:14,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 48 transitions. [2019-01-31 15:00:14,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2019-01-31 15:00:14,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 48 transitions. [2019-01-31 15:00:14,152 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 43 states and 48 transitions. [2019-01-31 15:00:14,195 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 48 edges. 48 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-01-31 15:00:14,196 INFO L225 Difference]: With dead ends: 47 [2019-01-31 15:00:14,196 INFO L226 Difference]: Without dead ends: 45 [2019-01-31 15:00:14,197 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 65 SyntacticMatches, 40 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 760 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=693, Invalid=1113, Unknown=0, NotChecked=0, Total=1806 [2019-01-31 15:00:14,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2019-01-31 15:00:14,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2019-01-31 15:00:14,938 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-01-31 15:00:14,939 INFO L82 GeneralOperation]: Start isEquivalent. First operand 45 states. Second operand 45 states. [2019-01-31 15:00:14,939 INFO L74 IsIncluded]: Start isIncluded. First operand 45 states. Second operand 45 states. [2019-01-31 15:00:14,939 INFO L87 Difference]: Start difference. First operand 45 states. Second operand 45 states. [2019-01-31 15:00:14,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 15:00:14,940 INFO L93 Difference]: Finished difference Result 45 states and 46 transitions. [2019-01-31 15:00:14,940 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 46 transitions. [2019-01-31 15:00:14,941 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-31 15:00:14,941 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-01-31 15:00:14,941 INFO L74 IsIncluded]: Start isIncluded. First operand 45 states. Second operand 45 states. [2019-01-31 15:00:14,941 INFO L87 Difference]: Start difference. First operand 45 states. Second operand 45 states. [2019-01-31 15:00:14,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 15:00:14,942 INFO L93 Difference]: Finished difference Result 45 states and 46 transitions. [2019-01-31 15:00:14,942 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 46 transitions. [2019-01-31 15:00:14,942 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-31 15:00:14,942 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-01-31 15:00:14,942 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-01-31 15:00:14,942 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-01-31 15:00:14,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2019-01-31 15:00:14,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 46 transitions. [2019-01-31 15:00:14,943 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 46 transitions. Word has length 43 [2019-01-31 15:00:14,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-31 15:00:14,943 INFO L480 AbstractCegarLoop]: Abstraction has 45 states and 46 transitions. [2019-01-31 15:00:14,943 INFO L481 AbstractCegarLoop]: Interpolant automaton has 23 states. [2019-01-31 15:00:14,943 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 46 transitions. [2019-01-31 15:00:14,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2019-01-31 15:00:14,944 INFO L394 BasicCegarLoop]: Found error trace [2019-01-31 15:00:14,944 INFO L402 BasicCegarLoop]: trace histogram [20, 20, 1, 1, 1, 1] [2019-01-31 15:00:14,944 INFO L423 AbstractCegarLoop]: === Iteration 32 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2019-01-31 15:00:14,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-31 15:00:14,944 INFO L82 PathProgramCache]: Analyzing trace with hash 728709898, now seen corresponding path program 30 times [2019-01-31 15:00:14,944 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-01-31 15:00:14,945 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-31 15:00:14,945 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-01-31 15:00:14,945 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-31 15:00:14,945 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-01-31 15:00:14,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-31 15:00:16,213 INFO L273 TraceCheckUtils]: 0: Hoare triple {10942#true} havoc main_#res;havoc main_#t~nondet0, main_#t~nondet2, main_#t~post1, main_#t~post4, main_#t~post3, main_#t~post6, main_#t~post5, main_~MAX~6, main_~str1~6, main_~str2~6, main_~cont~6, main_~i~6, main_~j~6;main_~MAX~6 := (if main_#t~nondet0 % 4294967296 % 4294967296 <= 2147483647 then main_#t~nondet0 % 4294967296 % 4294967296 else main_#t~nondet0 % 4294967296 % 4294967296 - 4294967296);havoc main_#t~nondet0;havoc main_~str1~6;havoc main_~str2~6;havoc main_~cont~6;havoc main_~i~6;havoc main_~j~6;main_~cont~6 := 0;main_~i~6 := 0; {10944#(and (<= ULTIMATE.start_main_~i~6 0) (<= 0 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:00:16,214 INFO L273 TraceCheckUtils]: 1: Hoare triple {10944#(and (<= ULTIMATE.start_main_~i~6 0) (<= 0 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {10945#(and (<= ULTIMATE.start_main_~i~6 1) (<= 1 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:00:16,215 INFO L273 TraceCheckUtils]: 2: Hoare triple {10945#(and (<= ULTIMATE.start_main_~i~6 1) (<= 1 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {10946#(and (<= ULTIMATE.start_main_~i~6 2) (<= 2 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:00:16,216 INFO L273 TraceCheckUtils]: 3: Hoare triple {10946#(and (<= ULTIMATE.start_main_~i~6 2) (<= 2 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {10947#(and (<= 3 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 3))} is VALID [2019-01-31 15:00:16,217 INFO L273 TraceCheckUtils]: 4: Hoare triple {10947#(and (<= 3 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 3))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {10948#(and (<= ULTIMATE.start_main_~i~6 4) (<= 4 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:00:16,218 INFO L273 TraceCheckUtils]: 5: Hoare triple {10948#(and (<= ULTIMATE.start_main_~i~6 4) (<= 4 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {10949#(and (<= 5 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 5))} is VALID [2019-01-31 15:00:16,219 INFO L273 TraceCheckUtils]: 6: Hoare triple {10949#(and (<= 5 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 5))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {10950#(and (<= ULTIMATE.start_main_~i~6 6) (<= 6 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:00:16,220 INFO L273 TraceCheckUtils]: 7: Hoare triple {10950#(and (<= ULTIMATE.start_main_~i~6 6) (<= 6 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {10951#(and (<= 7 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 7))} is VALID [2019-01-31 15:00:16,221 INFO L273 TraceCheckUtils]: 8: Hoare triple {10951#(and (<= 7 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 7))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {10952#(and (<= ULTIMATE.start_main_~i~6 8) (<= 8 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:00:16,223 INFO L273 TraceCheckUtils]: 9: Hoare triple {10952#(and (<= ULTIMATE.start_main_~i~6 8) (<= 8 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {10953#(and (<= ULTIMATE.start_main_~i~6 9) (<= 9 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:00:16,224 INFO L273 TraceCheckUtils]: 10: Hoare triple {10953#(and (<= ULTIMATE.start_main_~i~6 9) (<= 9 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {10954#(and (<= ULTIMATE.start_main_~i~6 10) (<= 10 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:00:16,225 INFO L273 TraceCheckUtils]: 11: Hoare triple {10954#(and (<= ULTIMATE.start_main_~i~6 10) (<= 10 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {10955#(and (<= 11 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 11))} is VALID [2019-01-31 15:00:16,226 INFO L273 TraceCheckUtils]: 12: Hoare triple {10955#(and (<= 11 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 11))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {10956#(and (<= ULTIMATE.start_main_~i~6 12) (<= 12 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:00:16,226 INFO L273 TraceCheckUtils]: 13: Hoare triple {10956#(and (<= ULTIMATE.start_main_~i~6 12) (<= 12 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {10957#(and (<= ULTIMATE.start_main_~i~6 13) (<= 13 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:00:16,227 INFO L273 TraceCheckUtils]: 14: Hoare triple {10957#(and (<= ULTIMATE.start_main_~i~6 13) (<= 13 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {10958#(and (<= ULTIMATE.start_main_~i~6 14) (<= 14 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:00:16,228 INFO L273 TraceCheckUtils]: 15: Hoare triple {10958#(and (<= ULTIMATE.start_main_~i~6 14) (<= 14 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {10959#(and (<= 15 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 15))} is VALID [2019-01-31 15:00:16,229 INFO L273 TraceCheckUtils]: 16: Hoare triple {10959#(and (<= 15 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 15))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {10960#(and (<= 16 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 16))} is VALID [2019-01-31 15:00:16,230 INFO L273 TraceCheckUtils]: 17: Hoare triple {10960#(and (<= 16 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 16))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {10961#(and (<= ULTIMATE.start_main_~i~6 17) (<= 17 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:00:16,231 INFO L273 TraceCheckUtils]: 18: Hoare triple {10961#(and (<= ULTIMATE.start_main_~i~6 17) (<= 17 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {10962#(and (<= ULTIMATE.start_main_~i~6 18) (<= 18 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:00:16,232 INFO L273 TraceCheckUtils]: 19: Hoare triple {10962#(and (<= ULTIMATE.start_main_~i~6 18) (<= 18 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {10963#(or (not (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 1))) (and (<= ULTIMATE.start_main_~i~6 19) (<= 19 ULTIMATE.start_main_~i~6)))} is VALID [2019-01-31 15:00:16,233 INFO L273 TraceCheckUtils]: 20: Hoare triple {10963#(or (not (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 1))) (and (<= ULTIMATE.start_main_~i~6 19) (<= 19 ULTIMATE.start_main_~i~6)))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {10964#(or (<= (+ ULTIMATE.start_main_~i~6 1) ULTIMATE.start_main_~MAX~6) (= 20 ULTIMATE.start_main_~MAX~6))} is VALID [2019-01-31 15:00:16,234 INFO L273 TraceCheckUtils]: 21: Hoare triple {10964#(or (<= (+ ULTIMATE.start_main_~i~6 1) ULTIMATE.start_main_~MAX~6) (= 20 ULTIMATE.start_main_~MAX~6))} assume !(main_~i~6 < main_~MAX~6);main_~str1~6 := main_~str1~6[main_~MAX~6 - 1 := 0];main_~j~6 := 0;main_~i~6 := main_~MAX~6 - 1; {10965#(= (+ ULTIMATE.start_main_~j~6 20) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:00:16,235 INFO L273 TraceCheckUtils]: 22: Hoare triple {10965#(= (+ ULTIMATE.start_main_~j~6 20) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {10966#(= (+ ULTIMATE.start_main_~j~6 19) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:00:16,236 INFO L273 TraceCheckUtils]: 23: Hoare triple {10966#(= (+ ULTIMATE.start_main_~j~6 19) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {10967#(= (+ ULTIMATE.start_main_~j~6 18) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:00:16,237 INFO L273 TraceCheckUtils]: 24: Hoare triple {10967#(= (+ ULTIMATE.start_main_~j~6 18) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {10968#(= (+ ULTIMATE.start_main_~j~6 17) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:00:16,238 INFO L273 TraceCheckUtils]: 25: Hoare triple {10968#(= (+ ULTIMATE.start_main_~j~6 17) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {10969#(= (+ ULTIMATE.start_main_~j~6 16) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:00:16,239 INFO L273 TraceCheckUtils]: 26: Hoare triple {10969#(= (+ ULTIMATE.start_main_~j~6 16) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {10970#(= (+ ULTIMATE.start_main_~j~6 15) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:00:16,240 INFO L273 TraceCheckUtils]: 27: Hoare triple {10970#(= (+ ULTIMATE.start_main_~j~6 15) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {10971#(= (+ ULTIMATE.start_main_~j~6 14) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:00:16,241 INFO L273 TraceCheckUtils]: 28: Hoare triple {10971#(= (+ ULTIMATE.start_main_~j~6 14) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {10972#(= (+ ULTIMATE.start_main_~j~6 13) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:00:16,242 INFO L273 TraceCheckUtils]: 29: Hoare triple {10972#(= (+ ULTIMATE.start_main_~j~6 13) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {10973#(= (+ ULTIMATE.start_main_~j~6 12) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:00:16,243 INFO L273 TraceCheckUtils]: 30: Hoare triple {10973#(= (+ ULTIMATE.start_main_~j~6 12) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {10974#(= (+ ULTIMATE.start_main_~j~6 11) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:00:16,244 INFO L273 TraceCheckUtils]: 31: Hoare triple {10974#(= (+ ULTIMATE.start_main_~j~6 11) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {10975#(= (+ ULTIMATE.start_main_~j~6 10) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:00:16,245 INFO L273 TraceCheckUtils]: 32: Hoare triple {10975#(= (+ ULTIMATE.start_main_~j~6 10) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {10976#(= (+ ULTIMATE.start_main_~j~6 9) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:00:16,246 INFO L273 TraceCheckUtils]: 33: Hoare triple {10976#(= (+ ULTIMATE.start_main_~j~6 9) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {10977#(= (+ ULTIMATE.start_main_~j~6 8) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:00:16,247 INFO L273 TraceCheckUtils]: 34: Hoare triple {10977#(= (+ ULTIMATE.start_main_~j~6 8) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {10978#(= (+ ULTIMATE.start_main_~j~6 7) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:00:16,248 INFO L273 TraceCheckUtils]: 35: Hoare triple {10978#(= (+ ULTIMATE.start_main_~j~6 7) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {10979#(= (+ ULTIMATE.start_main_~j~6 6) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:00:16,249 INFO L273 TraceCheckUtils]: 36: Hoare triple {10979#(= (+ ULTIMATE.start_main_~j~6 6) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {10980#(= (+ ULTIMATE.start_main_~j~6 5) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:00:16,250 INFO L273 TraceCheckUtils]: 37: Hoare triple {10980#(= (+ ULTIMATE.start_main_~j~6 5) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {10981#(= (+ ULTIMATE.start_main_~j~6 4) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:00:16,250 INFO L273 TraceCheckUtils]: 38: Hoare triple {10981#(= (+ ULTIMATE.start_main_~j~6 4) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {10982#(= (+ ULTIMATE.start_main_~j~6 3) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:00:16,251 INFO L273 TraceCheckUtils]: 39: Hoare triple {10982#(= (+ ULTIMATE.start_main_~j~6 3) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {10983#(= (+ ULTIMATE.start_main_~j~6 2) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:00:16,252 INFO L273 TraceCheckUtils]: 40: Hoare triple {10983#(= (+ ULTIMATE.start_main_~j~6 2) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {10984#(= (+ ULTIMATE.start_main_~j~6 1) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:00:16,253 INFO L273 TraceCheckUtils]: 41: Hoare triple {10984#(= (+ ULTIMATE.start_main_~j~6 1) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {10985#(= (select ULTIMATE.start_main_~str1~6 0) (select ULTIMATE.start_main_~str2~6 (+ ULTIMATE.start_main_~MAX~6 (- 1))))} is VALID [2019-01-31 15:00:16,254 INFO L273 TraceCheckUtils]: 42: Hoare triple {10985#(= (select ULTIMATE.start_main_~str1~6 0) (select ULTIMATE.start_main_~str2~6 (+ ULTIMATE.start_main_~MAX~6 (- 1))))} assume !(main_~i~6 >= 0);main_~j~6 := main_~MAX~6 - 1;main_~i~6 := 0;assume !!(main_~i~6 < main_~MAX~6);__VERIFIER_assert_#in~cond := (if main_~str1~6[main_~i~6] == main_~str2~6[main_~j~6] then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond;assume __VERIFIER_assert_~cond == 0;assume !false; {10943#false} is VALID [2019-01-31 15:00:16,255 INFO L273 TraceCheckUtils]: 43: Hoare triple {10943#false} assume !false; {10943#false} is VALID [2019-01-31 15:00:16,258 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 420 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-31 15:00:16,259 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-31 15:00:16,259 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-01-31 15:00:16,259 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-01-31 15:00:16,259 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-01-31 15:00:16,259 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-31 15:00:16,259 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 31 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 31 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-01-31 15:00:16,267 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2019-01-31 15:00:16,267 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder TERMS_WITH_SMALL_CONSTANTS_FIRST (IT: FPandBP) [2019-01-31 15:00:16,296 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-01-31 15:00:16,296 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-01-31 15:00:16,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-31 15:00:16,315 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-31 15:00:17,794 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2019-01-31 15:00:17,796 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-01-31 15:00:17,803 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-31 15:00:17,804 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:17, output treesize:16 [2019-01-31 15:00:17,806 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-01-31 15:00:17,807 WARN L398 uantifierElimination]: Input elimination task: ∃ [v_ULTIMATE.start_main_~str2~6_316]. (and (= (store v_ULTIMATE.start_main_~str2~6_316 19 (select ULTIMATE.start_main_~str1~6 0)) ULTIMATE.start_main_~str2~6) (<= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 21)) (<= 20 ULTIMATE.start_main_~MAX~6)) [2019-01-31 15:00:17,807 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (and (<= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 21)) (= (select ULTIMATE.start_main_~str2~6 19) (select ULTIMATE.start_main_~str1~6 0)) (<= 20 ULTIMATE.start_main_~MAX~6)) [2019-01-31 15:00:17,882 INFO L273 TraceCheckUtils]: 0: Hoare triple {10942#true} havoc main_#res;havoc main_#t~nondet0, main_#t~nondet2, main_#t~post1, main_#t~post4, main_#t~post3, main_#t~post6, main_#t~post5, main_~MAX~6, main_~str1~6, main_~str2~6, main_~cont~6, main_~i~6, main_~j~6;main_~MAX~6 := (if main_#t~nondet0 % 4294967296 % 4294967296 <= 2147483647 then main_#t~nondet0 % 4294967296 % 4294967296 else main_#t~nondet0 % 4294967296 % 4294967296 - 4294967296);havoc main_#t~nondet0;havoc main_~str1~6;havoc main_~str2~6;havoc main_~cont~6;havoc main_~i~6;havoc main_~j~6;main_~cont~6 := 0;main_~i~6 := 0; {10942#true} is VALID [2019-01-31 15:00:17,882 INFO L273 TraceCheckUtils]: 1: Hoare triple {10942#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {10942#true} is VALID [2019-01-31 15:00:17,882 INFO L273 TraceCheckUtils]: 2: Hoare triple {10942#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {10942#true} is VALID [2019-01-31 15:00:17,883 INFO L273 TraceCheckUtils]: 3: Hoare triple {10942#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {10942#true} is VALID [2019-01-31 15:00:17,883 INFO L273 TraceCheckUtils]: 4: Hoare triple {10942#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {10942#true} is VALID [2019-01-31 15:00:17,883 INFO L273 TraceCheckUtils]: 5: Hoare triple {10942#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {10942#true} is VALID [2019-01-31 15:00:17,883 INFO L273 TraceCheckUtils]: 6: Hoare triple {10942#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {10942#true} is VALID [2019-01-31 15:00:17,883 INFO L273 TraceCheckUtils]: 7: Hoare triple {10942#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {10942#true} is VALID [2019-01-31 15:00:17,883 INFO L273 TraceCheckUtils]: 8: Hoare triple {10942#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {10942#true} is VALID [2019-01-31 15:00:17,883 INFO L273 TraceCheckUtils]: 9: Hoare triple {10942#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {10942#true} is VALID [2019-01-31 15:00:17,883 INFO L273 TraceCheckUtils]: 10: Hoare triple {10942#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {10942#true} is VALID [2019-01-31 15:00:17,883 INFO L273 TraceCheckUtils]: 11: Hoare triple {10942#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {10942#true} is VALID [2019-01-31 15:00:17,884 INFO L273 TraceCheckUtils]: 12: Hoare triple {10942#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {10942#true} is VALID [2019-01-31 15:00:17,884 INFO L273 TraceCheckUtils]: 13: Hoare triple {10942#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {10942#true} is VALID [2019-01-31 15:00:17,884 INFO L273 TraceCheckUtils]: 14: Hoare triple {10942#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {10942#true} is VALID [2019-01-31 15:00:17,884 INFO L273 TraceCheckUtils]: 15: Hoare triple {10942#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {10942#true} is VALID [2019-01-31 15:00:17,884 INFO L273 TraceCheckUtils]: 16: Hoare triple {10942#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {10942#true} is VALID [2019-01-31 15:00:17,884 INFO L273 TraceCheckUtils]: 17: Hoare triple {10942#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {10942#true} is VALID [2019-01-31 15:00:17,884 INFO L273 TraceCheckUtils]: 18: Hoare triple {10942#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {10942#true} is VALID [2019-01-31 15:00:17,884 INFO L273 TraceCheckUtils]: 19: Hoare triple {10942#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {10942#true} is VALID [2019-01-31 15:00:17,884 INFO L273 TraceCheckUtils]: 20: Hoare triple {10942#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {10942#true} is VALID [2019-01-31 15:00:17,885 INFO L273 TraceCheckUtils]: 21: Hoare triple {10942#true} assume !(main_~i~6 < main_~MAX~6);main_~str1~6 := main_~str1~6[main_~MAX~6 - 1 := 0];main_~j~6 := 0;main_~i~6 := main_~MAX~6 - 1; {11052#(and (= ULTIMATE.start_main_~j~6 0) (= (+ ULTIMATE.start_main_~i~6 1) ULTIMATE.start_main_~MAX~6))} is VALID [2019-01-31 15:00:17,886 INFO L273 TraceCheckUtils]: 22: Hoare triple {11052#(and (= ULTIMATE.start_main_~j~6 0) (= (+ ULTIMATE.start_main_~i~6 1) ULTIMATE.start_main_~MAX~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {11056#(and (= ULTIMATE.start_main_~j~6 1) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 2)))} is VALID [2019-01-31 15:00:17,886 INFO L273 TraceCheckUtils]: 23: Hoare triple {11056#(and (= ULTIMATE.start_main_~j~6 1) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 2)))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {11060#(and (= (+ ULTIMATE.start_main_~i~6 3) ULTIMATE.start_main_~MAX~6) (= ULTIMATE.start_main_~j~6 2))} is VALID [2019-01-31 15:00:17,887 INFO L273 TraceCheckUtils]: 24: Hoare triple {11060#(and (= (+ ULTIMATE.start_main_~i~6 3) ULTIMATE.start_main_~MAX~6) (= ULTIMATE.start_main_~j~6 2))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {11064#(and (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 4)) (= ULTIMATE.start_main_~j~6 3))} is VALID [2019-01-31 15:00:17,887 INFO L273 TraceCheckUtils]: 25: Hoare triple {11064#(and (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 4)) (= ULTIMATE.start_main_~j~6 3))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {11068#(and (= ULTIMATE.start_main_~j~6 4) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 5)))} is VALID [2019-01-31 15:00:17,888 INFO L273 TraceCheckUtils]: 26: Hoare triple {11068#(and (= ULTIMATE.start_main_~j~6 4) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 5)))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {11072#(and (= ULTIMATE.start_main_~j~6 5) (= (+ ULTIMATE.start_main_~i~6 6) ULTIMATE.start_main_~MAX~6))} is VALID [2019-01-31 15:00:17,889 INFO L273 TraceCheckUtils]: 27: Hoare triple {11072#(and (= ULTIMATE.start_main_~j~6 5) (= (+ ULTIMATE.start_main_~i~6 6) ULTIMATE.start_main_~MAX~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {11076#(and (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 7)) (= ULTIMATE.start_main_~j~6 6))} is VALID [2019-01-31 15:00:17,890 INFO L273 TraceCheckUtils]: 28: Hoare triple {11076#(and (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 7)) (= ULTIMATE.start_main_~j~6 6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {11080#(and (= ULTIMATE.start_main_~j~6 7) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 8)))} is VALID [2019-01-31 15:00:17,891 INFO L273 TraceCheckUtils]: 29: Hoare triple {11080#(and (= ULTIMATE.start_main_~j~6 7) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 8)))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {11084#(and (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 9)) (= ULTIMATE.start_main_~j~6 8))} is VALID [2019-01-31 15:00:17,892 INFO L273 TraceCheckUtils]: 30: Hoare triple {11084#(and (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 9)) (= ULTIMATE.start_main_~j~6 8))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {11088#(and (= ULTIMATE.start_main_~j~6 9) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 10)))} is VALID [2019-01-31 15:00:17,893 INFO L273 TraceCheckUtils]: 31: Hoare triple {11088#(and (= ULTIMATE.start_main_~j~6 9) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 10)))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {11092#(and (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 11)) (= ULTIMATE.start_main_~j~6 10))} is VALID [2019-01-31 15:00:17,894 INFO L273 TraceCheckUtils]: 32: Hoare triple {11092#(and (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 11)) (= ULTIMATE.start_main_~j~6 10))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {11096#(and (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 12)) (= ULTIMATE.start_main_~j~6 11))} is VALID [2019-01-31 15:00:17,895 INFO L273 TraceCheckUtils]: 33: Hoare triple {11096#(and (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 12)) (= ULTIMATE.start_main_~j~6 11))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {11100#(and (= ULTIMATE.start_main_~j~6 12) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 13)))} is VALID [2019-01-31 15:00:17,896 INFO L273 TraceCheckUtils]: 34: Hoare triple {11100#(and (= ULTIMATE.start_main_~j~6 12) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 13)))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {11104#(and (= ULTIMATE.start_main_~j~6 13) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 14)))} is VALID [2019-01-31 15:00:17,897 INFO L273 TraceCheckUtils]: 35: Hoare triple {11104#(and (= ULTIMATE.start_main_~j~6 13) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 14)))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {11108#(and (= ULTIMATE.start_main_~j~6 14) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 15)))} is VALID [2019-01-31 15:00:17,898 INFO L273 TraceCheckUtils]: 36: Hoare triple {11108#(and (= ULTIMATE.start_main_~j~6 14) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 15)))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {11112#(and (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 16)) (= ULTIMATE.start_main_~j~6 15))} is VALID [2019-01-31 15:00:17,899 INFO L273 TraceCheckUtils]: 37: Hoare triple {11112#(and (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 16)) (= ULTIMATE.start_main_~j~6 15))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {11116#(and (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 17)) (= ULTIMATE.start_main_~j~6 16))} is VALID [2019-01-31 15:00:17,900 INFO L273 TraceCheckUtils]: 38: Hoare triple {11116#(and (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 17)) (= ULTIMATE.start_main_~j~6 16))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {11120#(and (= ULTIMATE.start_main_~j~6 17) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 18)))} is VALID [2019-01-31 15:00:17,901 INFO L273 TraceCheckUtils]: 39: Hoare triple {11120#(and (= ULTIMATE.start_main_~j~6 17) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 18)))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {11124#(and (= ULTIMATE.start_main_~j~6 18) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 19)))} is VALID [2019-01-31 15:00:17,902 INFO L273 TraceCheckUtils]: 40: Hoare triple {11124#(and (= ULTIMATE.start_main_~j~6 18) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 19)))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {11128#(and (= ULTIMATE.start_main_~j~6 19) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 20)))} is VALID [2019-01-31 15:00:17,903 INFO L273 TraceCheckUtils]: 41: Hoare triple {11128#(and (= ULTIMATE.start_main_~j~6 19) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 20)))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {11132#(and (<= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 21)) (= (select ULTIMATE.start_main_~str2~6 19) (select ULTIMATE.start_main_~str1~6 0)) (<= 20 ULTIMATE.start_main_~MAX~6))} is VALID [2019-01-31 15:00:17,904 INFO L273 TraceCheckUtils]: 42: Hoare triple {11132#(and (<= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 21)) (= (select ULTIMATE.start_main_~str2~6 19) (select ULTIMATE.start_main_~str1~6 0)) (<= 20 ULTIMATE.start_main_~MAX~6))} assume !(main_~i~6 >= 0);main_~j~6 := main_~MAX~6 - 1;main_~i~6 := 0;assume !!(main_~i~6 < main_~MAX~6);__VERIFIER_assert_#in~cond := (if main_~str1~6[main_~i~6] == main_~str2~6[main_~j~6] then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond;assume __VERIFIER_assert_~cond == 0;assume !false; {10943#false} is VALID [2019-01-31 15:00:17,904 INFO L273 TraceCheckUtils]: 43: Hoare triple {10943#false} assume !false; {10943#false} is VALID [2019-01-31 15:00:17,908 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 210 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2019-01-31 15:00:17,908 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2019-01-31 15:00:18,016 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 5 [2019-01-31 15:00:18,020 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-01-31 15:00:18,030 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-31 15:00:18,030 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:22, output treesize:12 [2019-01-31 15:00:18,032 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-01-31 15:00:18,032 WARN L398 uantifierElimination]: Input elimination task: ∀ [ULTIMATE.start_main_~str2~6, ULTIMATE.start_main_~str1~6]. (or (not (<= 0 ULTIMATE.start_main_~i~6)) (let ((.cse0 (select ULTIMATE.start_main_~str1~6 0))) (= .cse0 (select (store ULTIMATE.start_main_~str2~6 ULTIMATE.start_main_~j~6 .cse0) (+ ULTIMATE.start_main_~MAX~6 (- 1))))) (< 0 ULTIMATE.start_main_~i~6)) [2019-01-31 15:00:18,032 WARN L399 uantifierElimination]: ElimStorePlain result: ∀ []. (or (< ULTIMATE.start_main_~i~6 0) (< 0 ULTIMATE.start_main_~i~6) (= (+ ULTIMATE.start_main_~j~6 1) ULTIMATE.start_main_~MAX~6)) [2019-01-31 15:00:19,508 INFO L273 TraceCheckUtils]: 43: Hoare triple {10943#false} assume !false; {10943#false} is VALID [2019-01-31 15:00:19,509 INFO L273 TraceCheckUtils]: 42: Hoare triple {11142#(or (= (select ULTIMATE.start_main_~str1~6 0) (select ULTIMATE.start_main_~str2~6 (+ ULTIMATE.start_main_~MAX~6 (- 1)))) (<= 0 ULTIMATE.start_main_~i~6))} assume !(main_~i~6 >= 0);main_~j~6 := main_~MAX~6 - 1;main_~i~6 := 0;assume !!(main_~i~6 < main_~MAX~6);__VERIFIER_assert_#in~cond := (if main_~str1~6[main_~i~6] == main_~str2~6[main_~j~6] then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond;assume __VERIFIER_assert_~cond == 0;assume !false; {10943#false} is VALID [2019-01-31 15:00:19,510 INFO L273 TraceCheckUtils]: 41: Hoare triple {11146#(or (< ULTIMATE.start_main_~i~6 0) (< 0 ULTIMATE.start_main_~i~6) (= (+ ULTIMATE.start_main_~j~6 1) ULTIMATE.start_main_~MAX~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {11142#(or (= (select ULTIMATE.start_main_~str1~6 0) (select ULTIMATE.start_main_~str2~6 (+ ULTIMATE.start_main_~MAX~6 (- 1)))) (<= 0 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:00:19,511 INFO L273 TraceCheckUtils]: 40: Hoare triple {11150#(or (= (+ ULTIMATE.start_main_~j~6 2) ULTIMATE.start_main_~MAX~6) (< 1 ULTIMATE.start_main_~i~6) (< ULTIMATE.start_main_~i~6 1))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {11146#(or (< ULTIMATE.start_main_~i~6 0) (< 0 ULTIMATE.start_main_~i~6) (= (+ ULTIMATE.start_main_~j~6 1) ULTIMATE.start_main_~MAX~6))} is VALID [2019-01-31 15:00:19,513 INFO L273 TraceCheckUtils]: 39: Hoare triple {11154#(or (= (+ ULTIMATE.start_main_~j~6 3) ULTIMATE.start_main_~MAX~6) (< ULTIMATE.start_main_~i~6 2) (< 2 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {11150#(or (= (+ ULTIMATE.start_main_~j~6 2) ULTIMATE.start_main_~MAX~6) (< 1 ULTIMATE.start_main_~i~6) (< ULTIMATE.start_main_~i~6 1))} is VALID [2019-01-31 15:00:19,514 INFO L273 TraceCheckUtils]: 38: Hoare triple {11158#(or (= (+ ULTIMATE.start_main_~j~6 4) ULTIMATE.start_main_~MAX~6) (< ULTIMATE.start_main_~i~6 3) (< 3 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {11154#(or (= (+ ULTIMATE.start_main_~j~6 3) ULTIMATE.start_main_~MAX~6) (< ULTIMATE.start_main_~i~6 2) (< 2 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:00:19,515 INFO L273 TraceCheckUtils]: 37: Hoare triple {11162#(or (= (+ ULTIMATE.start_main_~j~6 5) ULTIMATE.start_main_~MAX~6) (< 4 ULTIMATE.start_main_~i~6) (< ULTIMATE.start_main_~i~6 4))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {11158#(or (= (+ ULTIMATE.start_main_~j~6 4) ULTIMATE.start_main_~MAX~6) (< ULTIMATE.start_main_~i~6 3) (< 3 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:00:19,516 INFO L273 TraceCheckUtils]: 36: Hoare triple {11166#(or (< ULTIMATE.start_main_~i~6 5) (< 5 ULTIMATE.start_main_~i~6) (= (+ ULTIMATE.start_main_~j~6 6) ULTIMATE.start_main_~MAX~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {11162#(or (= (+ ULTIMATE.start_main_~j~6 5) ULTIMATE.start_main_~MAX~6) (< 4 ULTIMATE.start_main_~i~6) (< ULTIMATE.start_main_~i~6 4))} is VALID [2019-01-31 15:00:19,517 INFO L273 TraceCheckUtils]: 35: Hoare triple {11170#(or (< ULTIMATE.start_main_~i~6 6) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 7)) (< 6 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {11166#(or (< ULTIMATE.start_main_~i~6 5) (< 5 ULTIMATE.start_main_~i~6) (= (+ ULTIMATE.start_main_~j~6 6) ULTIMATE.start_main_~MAX~6))} is VALID [2019-01-31 15:00:19,518 INFO L273 TraceCheckUtils]: 34: Hoare triple {11174#(or (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 8)) (< ULTIMATE.start_main_~i~6 7) (< 7 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {11170#(or (< ULTIMATE.start_main_~i~6 6) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 7)) (< 6 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:00:19,519 INFO L273 TraceCheckUtils]: 33: Hoare triple {11178#(or (< 8 ULTIMATE.start_main_~i~6) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 9)) (< ULTIMATE.start_main_~i~6 8))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {11174#(or (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 8)) (< ULTIMATE.start_main_~i~6 7) (< 7 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:00:19,520 INFO L273 TraceCheckUtils]: 32: Hoare triple {11182#(or (< ULTIMATE.start_main_~i~6 9) (= (+ ULTIMATE.start_main_~j~6 10) ULTIMATE.start_main_~MAX~6) (< 9 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {11178#(or (< 8 ULTIMATE.start_main_~i~6) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 9)) (< ULTIMATE.start_main_~i~6 8))} is VALID [2019-01-31 15:00:19,521 INFO L273 TraceCheckUtils]: 31: Hoare triple {11186#(or (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 11)) (< 10 ULTIMATE.start_main_~i~6) (< ULTIMATE.start_main_~i~6 10))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {11182#(or (< ULTIMATE.start_main_~i~6 9) (= (+ ULTIMATE.start_main_~j~6 10) ULTIMATE.start_main_~MAX~6) (< 9 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:00:19,522 INFO L273 TraceCheckUtils]: 30: Hoare triple {11190#(or (< ULTIMATE.start_main_~i~6 11) (= (+ ULTIMATE.start_main_~j~6 12) ULTIMATE.start_main_~MAX~6) (< 11 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {11186#(or (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 11)) (< 10 ULTIMATE.start_main_~i~6) (< ULTIMATE.start_main_~i~6 10))} is VALID [2019-01-31 15:00:19,523 INFO L273 TraceCheckUtils]: 29: Hoare triple {11194#(or (< 12 ULTIMATE.start_main_~i~6) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 13)) (< ULTIMATE.start_main_~i~6 12))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {11190#(or (< ULTIMATE.start_main_~i~6 11) (= (+ ULTIMATE.start_main_~j~6 12) ULTIMATE.start_main_~MAX~6) (< 11 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:00:19,524 INFO L273 TraceCheckUtils]: 28: Hoare triple {11198#(or (< ULTIMATE.start_main_~i~6 13) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 14)) (< 13 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {11194#(or (< 12 ULTIMATE.start_main_~i~6) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 13)) (< ULTIMATE.start_main_~i~6 12))} is VALID [2019-01-31 15:00:19,526 INFO L273 TraceCheckUtils]: 27: Hoare triple {11202#(or (< 14 ULTIMATE.start_main_~i~6) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 15)) (< ULTIMATE.start_main_~i~6 14))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {11198#(or (< ULTIMATE.start_main_~i~6 13) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 14)) (< 13 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:00:19,527 INFO L273 TraceCheckUtils]: 26: Hoare triple {11206#(or (< 15 ULTIMATE.start_main_~i~6) (< ULTIMATE.start_main_~i~6 15) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 16)))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {11202#(or (< 14 ULTIMATE.start_main_~i~6) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 15)) (< ULTIMATE.start_main_~i~6 14))} is VALID [2019-01-31 15:00:19,528 INFO L273 TraceCheckUtils]: 25: Hoare triple {11210#(or (< ULTIMATE.start_main_~i~6 16) (< 16 ULTIMATE.start_main_~i~6) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 17)))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {11206#(or (< 15 ULTIMATE.start_main_~i~6) (< ULTIMATE.start_main_~i~6 15) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 16)))} is VALID [2019-01-31 15:00:19,529 INFO L273 TraceCheckUtils]: 24: Hoare triple {11214#(or (< ULTIMATE.start_main_~i~6 17) (< 17 ULTIMATE.start_main_~i~6) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 18)))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {11210#(or (< ULTIMATE.start_main_~i~6 16) (< 16 ULTIMATE.start_main_~i~6) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 17)))} is VALID [2019-01-31 15:00:19,530 INFO L273 TraceCheckUtils]: 23: Hoare triple {11218#(or (< ULTIMATE.start_main_~i~6 18) (< 18 ULTIMATE.start_main_~i~6) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 19)))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {11214#(or (< ULTIMATE.start_main_~i~6 17) (< 17 ULTIMATE.start_main_~i~6) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 18)))} is VALID [2019-01-31 15:00:19,531 INFO L273 TraceCheckUtils]: 22: Hoare triple {11222#(or (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 20)) (< 19 ULTIMATE.start_main_~i~6) (< ULTIMATE.start_main_~i~6 19))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {11218#(or (< ULTIMATE.start_main_~i~6 18) (< 18 ULTIMATE.start_main_~i~6) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 19)))} is VALID [2019-01-31 15:00:19,532 INFO L273 TraceCheckUtils]: 21: Hoare triple {10942#true} assume !(main_~i~6 < main_~MAX~6);main_~str1~6 := main_~str1~6[main_~MAX~6 - 1 := 0];main_~j~6 := 0;main_~i~6 := main_~MAX~6 - 1; {11222#(or (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 20)) (< 19 ULTIMATE.start_main_~i~6) (< ULTIMATE.start_main_~i~6 19))} is VALID [2019-01-31 15:00:19,532 INFO L273 TraceCheckUtils]: 20: Hoare triple {10942#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {10942#true} is VALID [2019-01-31 15:00:19,532 INFO L273 TraceCheckUtils]: 19: Hoare triple {10942#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {10942#true} is VALID [2019-01-31 15:00:19,533 INFO L273 TraceCheckUtils]: 18: Hoare triple {10942#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {10942#true} is VALID [2019-01-31 15:00:19,533 INFO L273 TraceCheckUtils]: 17: Hoare triple {10942#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {10942#true} is VALID [2019-01-31 15:00:19,533 INFO L273 TraceCheckUtils]: 16: Hoare triple {10942#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {10942#true} is VALID [2019-01-31 15:00:19,533 INFO L273 TraceCheckUtils]: 15: Hoare triple {10942#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {10942#true} is VALID [2019-01-31 15:00:19,533 INFO L273 TraceCheckUtils]: 14: Hoare triple {10942#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {10942#true} is VALID [2019-01-31 15:00:19,534 INFO L273 TraceCheckUtils]: 13: Hoare triple {10942#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {10942#true} is VALID [2019-01-31 15:00:19,534 INFO L273 TraceCheckUtils]: 12: Hoare triple {10942#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {10942#true} is VALID [2019-01-31 15:00:19,534 INFO L273 TraceCheckUtils]: 11: Hoare triple {10942#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {10942#true} is VALID [2019-01-31 15:00:19,534 INFO L273 TraceCheckUtils]: 10: Hoare triple {10942#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {10942#true} is VALID [2019-01-31 15:00:19,534 INFO L273 TraceCheckUtils]: 9: Hoare triple {10942#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {10942#true} is VALID [2019-01-31 15:00:19,535 INFO L273 TraceCheckUtils]: 8: Hoare triple {10942#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {10942#true} is VALID [2019-01-31 15:00:19,535 INFO L273 TraceCheckUtils]: 7: Hoare triple {10942#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {10942#true} is VALID [2019-01-31 15:00:19,535 INFO L273 TraceCheckUtils]: 6: Hoare triple {10942#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {10942#true} is VALID [2019-01-31 15:00:19,535 INFO L273 TraceCheckUtils]: 5: Hoare triple {10942#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {10942#true} is VALID [2019-01-31 15:00:19,535 INFO L273 TraceCheckUtils]: 4: Hoare triple {10942#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {10942#true} is VALID [2019-01-31 15:00:19,535 INFO L273 TraceCheckUtils]: 3: Hoare triple {10942#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {10942#true} is VALID [2019-01-31 15:00:19,535 INFO L273 TraceCheckUtils]: 2: Hoare triple {10942#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {10942#true} is VALID [2019-01-31 15:00:19,535 INFO L273 TraceCheckUtils]: 1: Hoare triple {10942#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {10942#true} is VALID [2019-01-31 15:00:19,536 INFO L273 TraceCheckUtils]: 0: Hoare triple {10942#true} havoc main_#res;havoc main_#t~nondet0, main_#t~nondet2, main_#t~post1, main_#t~post4, main_#t~post3, main_#t~post6, main_#t~post5, main_~MAX~6, main_~str1~6, main_~str2~6, main_~cont~6, main_~i~6, main_~j~6;main_~MAX~6 := (if main_#t~nondet0 % 4294967296 % 4294967296 <= 2147483647 then main_#t~nondet0 % 4294967296 % 4294967296 else main_#t~nondet0 % 4294967296 % 4294967296 - 4294967296);havoc main_#t~nondet0;havoc main_~str1~6;havoc main_~str2~6;havoc main_~cont~6;havoc main_~i~6;havoc main_~j~6;main_~cont~6 := 0;main_~i~6 := 0; {10942#true} is VALID [2019-01-31 15:00:19,539 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 210 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2019-01-31 15:00:19,558 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-01-31 15:00:19,558 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [43, 23, 23] total 86 [2019-01-31 15:00:19,558 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-01-31 15:00:19,558 INFO L78 Accepts]: Start accepts. Automaton has 65 states. Word has length 44 [2019-01-31 15:00:19,558 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-01-31 15:00:19,558 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 65 states. [2019-01-31 15:00:19,702 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 68 edges. 68 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-01-31 15:00:19,703 INFO L459 AbstractCegarLoop]: Interpolant automaton has 65 states [2019-01-31 15:00:19,703 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 65 interpolants. [2019-01-31 15:00:19,704 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1010, Invalid=6300, Unknown=0, NotChecked=0, Total=7310 [2019-01-31 15:00:19,704 INFO L87 Difference]: Start difference. First operand 45 states and 46 transitions. Second operand 65 states. [2019-01-31 15:00:29,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 15:00:29,609 INFO L93 Difference]: Finished difference Result 71 states and 75 transitions. [2019-01-31 15:00:29,609 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2019-01-31 15:00:29,610 INFO L78 Accepts]: Start accepts. Automaton has 65 states. Word has length 44 [2019-01-31 15:00:29,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-31 15:00:29,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states. [2019-01-31 15:00:29,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 75 transitions. [2019-01-31 15:00:29,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states. [2019-01-31 15:00:29,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 75 transitions. [2019-01-31 15:00:29,612 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 68 states and 75 transitions. [2019-01-31 15:00:29,696 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 75 edges. 75 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-01-31 15:00:29,697 INFO L225 Difference]: With dead ends: 71 [2019-01-31 15:00:29,697 INFO L226 Difference]: Without dead ends: 47 [2019-01-31 15:00:29,698 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 109 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 988 ImplicationChecksByTransitivity, 5.5s TimeCoverageRelationStatistics Valid=1663, Invalid=10547, Unknown=0, NotChecked=0, Total=12210 [2019-01-31 15:00:29,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2019-01-31 15:00:30,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2019-01-31 15:00:30,471 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-01-31 15:00:30,471 INFO L82 GeneralOperation]: Start isEquivalent. First operand 47 states. Second operand 47 states. [2019-01-31 15:00:30,472 INFO L74 IsIncluded]: Start isIncluded. First operand 47 states. Second operand 47 states. [2019-01-31 15:00:30,472 INFO L87 Difference]: Start difference. First operand 47 states. Second operand 47 states. [2019-01-31 15:00:30,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 15:00:30,473 INFO L93 Difference]: Finished difference Result 47 states and 48 transitions. [2019-01-31 15:00:30,474 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 48 transitions. [2019-01-31 15:00:30,474 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-31 15:00:30,474 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-01-31 15:00:30,474 INFO L74 IsIncluded]: Start isIncluded. First operand 47 states. Second operand 47 states. [2019-01-31 15:00:30,474 INFO L87 Difference]: Start difference. First operand 47 states. Second operand 47 states. [2019-01-31 15:00:30,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 15:00:30,475 INFO L93 Difference]: Finished difference Result 47 states and 48 transitions. [2019-01-31 15:00:30,475 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 48 transitions. [2019-01-31 15:00:30,475 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-31 15:00:30,476 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-01-31 15:00:30,476 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-01-31 15:00:30,476 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-01-31 15:00:30,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2019-01-31 15:00:30,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 48 transitions. [2019-01-31 15:00:30,477 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 48 transitions. Word has length 44 [2019-01-31 15:00:30,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-31 15:00:30,477 INFO L480 AbstractCegarLoop]: Abstraction has 47 states and 48 transitions. [2019-01-31 15:00:30,477 INFO L481 AbstractCegarLoop]: Interpolant automaton has 65 states. [2019-01-31 15:00:30,477 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 48 transitions. [2019-01-31 15:00:30,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2019-01-31 15:00:30,478 INFO L394 BasicCegarLoop]: Found error trace [2019-01-31 15:00:30,478 INFO L402 BasicCegarLoop]: trace histogram [21, 21, 1, 1, 1, 1] [2019-01-31 15:00:30,478 INFO L423 AbstractCegarLoop]: === Iteration 33 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2019-01-31 15:00:30,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-31 15:00:30,478 INFO L82 PathProgramCache]: Analyzing trace with hash 954210165, now seen corresponding path program 31 times [2019-01-31 15:00:30,479 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-01-31 15:00:30,479 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-31 15:00:30,479 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-01-31 15:00:30,479 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-31 15:00:30,480 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-01-31 15:00:30,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-31 15:00:32,043 INFO L273 TraceCheckUtils]: 0: Hoare triple {11663#true} havoc main_#res;havoc main_#t~nondet0, main_#t~nondet2, main_#t~post1, main_#t~post4, main_#t~post3, main_#t~post6, main_#t~post5, main_~MAX~6, main_~str1~6, main_~str2~6, main_~cont~6, main_~i~6, main_~j~6;main_~MAX~6 := (if main_#t~nondet0 % 4294967296 % 4294967296 <= 2147483647 then main_#t~nondet0 % 4294967296 % 4294967296 else main_#t~nondet0 % 4294967296 % 4294967296 - 4294967296);havoc main_#t~nondet0;havoc main_~str1~6;havoc main_~str2~6;havoc main_~cont~6;havoc main_~i~6;havoc main_~j~6;main_~cont~6 := 0;main_~i~6 := 0; {11665#(and (<= ULTIMATE.start_main_~i~6 0) (<= 0 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:00:32,044 INFO L273 TraceCheckUtils]: 1: Hoare triple {11665#(and (<= ULTIMATE.start_main_~i~6 0) (<= 0 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {11666#(and (<= ULTIMATE.start_main_~i~6 1) (<= 1 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:00:32,045 INFO L273 TraceCheckUtils]: 2: Hoare triple {11666#(and (<= ULTIMATE.start_main_~i~6 1) (<= 1 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {11667#(and (<= ULTIMATE.start_main_~i~6 2) (<= 2 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:00:32,046 INFO L273 TraceCheckUtils]: 3: Hoare triple {11667#(and (<= ULTIMATE.start_main_~i~6 2) (<= 2 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {11668#(and (<= 3 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 3))} is VALID [2019-01-31 15:00:32,047 INFO L273 TraceCheckUtils]: 4: Hoare triple {11668#(and (<= 3 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 3))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {11669#(and (<= ULTIMATE.start_main_~i~6 4) (<= 4 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:00:32,048 INFO L273 TraceCheckUtils]: 5: Hoare triple {11669#(and (<= ULTIMATE.start_main_~i~6 4) (<= 4 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {11670#(and (<= 5 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 5))} is VALID [2019-01-31 15:00:32,049 INFO L273 TraceCheckUtils]: 6: Hoare triple {11670#(and (<= 5 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 5))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {11671#(and (<= ULTIMATE.start_main_~i~6 6) (<= 6 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:00:32,050 INFO L273 TraceCheckUtils]: 7: Hoare triple {11671#(and (<= ULTIMATE.start_main_~i~6 6) (<= 6 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {11672#(and (<= 7 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 7))} is VALID [2019-01-31 15:00:32,051 INFO L273 TraceCheckUtils]: 8: Hoare triple {11672#(and (<= 7 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 7))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {11673#(and (<= ULTIMATE.start_main_~i~6 8) (<= 8 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:00:32,052 INFO L273 TraceCheckUtils]: 9: Hoare triple {11673#(and (<= ULTIMATE.start_main_~i~6 8) (<= 8 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {11674#(and (<= ULTIMATE.start_main_~i~6 9) (<= 9 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:00:32,053 INFO L273 TraceCheckUtils]: 10: Hoare triple {11674#(and (<= ULTIMATE.start_main_~i~6 9) (<= 9 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {11675#(and (<= ULTIMATE.start_main_~i~6 10) (<= 10 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:00:32,054 INFO L273 TraceCheckUtils]: 11: Hoare triple {11675#(and (<= ULTIMATE.start_main_~i~6 10) (<= 10 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {11676#(and (<= 11 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 11))} is VALID [2019-01-31 15:00:32,055 INFO L273 TraceCheckUtils]: 12: Hoare triple {11676#(and (<= 11 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 11))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {11677#(and (<= ULTIMATE.start_main_~i~6 12) (<= 12 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:00:32,056 INFO L273 TraceCheckUtils]: 13: Hoare triple {11677#(and (<= ULTIMATE.start_main_~i~6 12) (<= 12 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {11678#(and (<= ULTIMATE.start_main_~i~6 13) (<= 13 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:00:32,057 INFO L273 TraceCheckUtils]: 14: Hoare triple {11678#(and (<= ULTIMATE.start_main_~i~6 13) (<= 13 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {11679#(and (<= ULTIMATE.start_main_~i~6 14) (<= 14 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:00:32,058 INFO L273 TraceCheckUtils]: 15: Hoare triple {11679#(and (<= ULTIMATE.start_main_~i~6 14) (<= 14 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {11680#(and (<= 15 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 15))} is VALID [2019-01-31 15:00:32,059 INFO L273 TraceCheckUtils]: 16: Hoare triple {11680#(and (<= 15 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 15))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {11681#(and (<= 16 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 16))} is VALID [2019-01-31 15:00:32,060 INFO L273 TraceCheckUtils]: 17: Hoare triple {11681#(and (<= 16 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 16))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {11682#(and (<= ULTIMATE.start_main_~i~6 17) (<= 17 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:00:32,061 INFO L273 TraceCheckUtils]: 18: Hoare triple {11682#(and (<= ULTIMATE.start_main_~i~6 17) (<= 17 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {11683#(and (<= ULTIMATE.start_main_~i~6 18) (<= 18 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:00:32,061 INFO L273 TraceCheckUtils]: 19: Hoare triple {11683#(and (<= ULTIMATE.start_main_~i~6 18) (<= 18 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {11684#(and (<= ULTIMATE.start_main_~i~6 19) (<= 19 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:00:32,063 INFO L273 TraceCheckUtils]: 20: Hoare triple {11684#(and (<= ULTIMATE.start_main_~i~6 19) (<= 19 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {11685#(or (not (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 1))) (and (<= ULTIMATE.start_main_~i~6 20) (<= 20 ULTIMATE.start_main_~i~6)))} is VALID [2019-01-31 15:00:32,064 INFO L273 TraceCheckUtils]: 21: Hoare triple {11685#(or (not (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 1))) (and (<= ULTIMATE.start_main_~i~6 20) (<= 20 ULTIMATE.start_main_~i~6)))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {11686#(or (= 21 ULTIMATE.start_main_~MAX~6) (<= (+ ULTIMATE.start_main_~i~6 1) ULTIMATE.start_main_~MAX~6))} is VALID [2019-01-31 15:00:32,065 INFO L273 TraceCheckUtils]: 22: Hoare triple {11686#(or (= 21 ULTIMATE.start_main_~MAX~6) (<= (+ ULTIMATE.start_main_~i~6 1) ULTIMATE.start_main_~MAX~6))} assume !(main_~i~6 < main_~MAX~6);main_~str1~6 := main_~str1~6[main_~MAX~6 - 1 := 0];main_~j~6 := 0;main_~i~6 := main_~MAX~6 - 1; {11687#(= (+ ULTIMATE.start_main_~j~6 21) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:00:32,066 INFO L273 TraceCheckUtils]: 23: Hoare triple {11687#(= (+ ULTIMATE.start_main_~j~6 21) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {11688#(= (+ ULTIMATE.start_main_~j~6 20) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:00:32,067 INFO L273 TraceCheckUtils]: 24: Hoare triple {11688#(= (+ ULTIMATE.start_main_~j~6 20) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {11689#(= (+ ULTIMATE.start_main_~j~6 19) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:00:32,068 INFO L273 TraceCheckUtils]: 25: Hoare triple {11689#(= (+ ULTIMATE.start_main_~j~6 19) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {11690#(= (+ ULTIMATE.start_main_~j~6 18) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:00:32,068 INFO L273 TraceCheckUtils]: 26: Hoare triple {11690#(= (+ ULTIMATE.start_main_~j~6 18) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {11691#(= (+ ULTIMATE.start_main_~j~6 17) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:00:32,069 INFO L273 TraceCheckUtils]: 27: Hoare triple {11691#(= (+ ULTIMATE.start_main_~j~6 17) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {11692#(= (+ ULTIMATE.start_main_~j~6 16) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:00:32,070 INFO L273 TraceCheckUtils]: 28: Hoare triple {11692#(= (+ ULTIMATE.start_main_~j~6 16) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {11693#(= (+ ULTIMATE.start_main_~j~6 15) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:00:32,071 INFO L273 TraceCheckUtils]: 29: Hoare triple {11693#(= (+ ULTIMATE.start_main_~j~6 15) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {11694#(= (+ ULTIMATE.start_main_~j~6 14) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:00:32,072 INFO L273 TraceCheckUtils]: 30: Hoare triple {11694#(= (+ ULTIMATE.start_main_~j~6 14) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {11695#(= (+ ULTIMATE.start_main_~j~6 13) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:00:32,073 INFO L273 TraceCheckUtils]: 31: Hoare triple {11695#(= (+ ULTIMATE.start_main_~j~6 13) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {11696#(= (+ ULTIMATE.start_main_~j~6 12) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:00:32,074 INFO L273 TraceCheckUtils]: 32: Hoare triple {11696#(= (+ ULTIMATE.start_main_~j~6 12) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {11697#(= (+ ULTIMATE.start_main_~j~6 11) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:00:32,075 INFO L273 TraceCheckUtils]: 33: Hoare triple {11697#(= (+ ULTIMATE.start_main_~j~6 11) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {11698#(= (+ ULTIMATE.start_main_~j~6 10) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:00:32,076 INFO L273 TraceCheckUtils]: 34: Hoare triple {11698#(= (+ ULTIMATE.start_main_~j~6 10) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {11699#(= (+ ULTIMATE.start_main_~j~6 9) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:00:32,077 INFO L273 TraceCheckUtils]: 35: Hoare triple {11699#(= (+ ULTIMATE.start_main_~j~6 9) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {11700#(= (+ ULTIMATE.start_main_~j~6 8) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:00:32,078 INFO L273 TraceCheckUtils]: 36: Hoare triple {11700#(= (+ ULTIMATE.start_main_~j~6 8) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {11701#(= (+ ULTIMATE.start_main_~j~6 7) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:00:32,079 INFO L273 TraceCheckUtils]: 37: Hoare triple {11701#(= (+ ULTIMATE.start_main_~j~6 7) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {11702#(= (+ ULTIMATE.start_main_~j~6 6) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:00:32,080 INFO L273 TraceCheckUtils]: 38: Hoare triple {11702#(= (+ ULTIMATE.start_main_~j~6 6) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {11703#(= (+ ULTIMATE.start_main_~j~6 5) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:00:32,081 INFO L273 TraceCheckUtils]: 39: Hoare triple {11703#(= (+ ULTIMATE.start_main_~j~6 5) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {11704#(= (+ ULTIMATE.start_main_~j~6 4) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:00:32,082 INFO L273 TraceCheckUtils]: 40: Hoare triple {11704#(= (+ ULTIMATE.start_main_~j~6 4) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {11705#(= (+ ULTIMATE.start_main_~j~6 3) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:00:32,083 INFO L273 TraceCheckUtils]: 41: Hoare triple {11705#(= (+ ULTIMATE.start_main_~j~6 3) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {11706#(= (+ ULTIMATE.start_main_~j~6 2) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:00:32,084 INFO L273 TraceCheckUtils]: 42: Hoare triple {11706#(= (+ ULTIMATE.start_main_~j~6 2) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {11707#(= (+ ULTIMATE.start_main_~j~6 1) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:00:32,085 INFO L273 TraceCheckUtils]: 43: Hoare triple {11707#(= (+ ULTIMATE.start_main_~j~6 1) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {11708#(= (select ULTIMATE.start_main_~str1~6 0) (select ULTIMATE.start_main_~str2~6 (+ ULTIMATE.start_main_~MAX~6 (- 1))))} is VALID [2019-01-31 15:00:32,086 INFO L273 TraceCheckUtils]: 44: Hoare triple {11708#(= (select ULTIMATE.start_main_~str1~6 0) (select ULTIMATE.start_main_~str2~6 (+ ULTIMATE.start_main_~MAX~6 (- 1))))} assume !(main_~i~6 >= 0);main_~j~6 := main_~MAX~6 - 1;main_~i~6 := 0;assume !!(main_~i~6 < main_~MAX~6);__VERIFIER_assert_#in~cond := (if main_~str1~6[main_~i~6] == main_~str2~6[main_~j~6] then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond;assume __VERIFIER_assert_~cond == 0;assume !false; {11664#false} is VALID [2019-01-31 15:00:32,086 INFO L273 TraceCheckUtils]: 45: Hoare triple {11664#false} assume !false; {11664#false} is VALID [2019-01-31 15:00:32,090 INFO L134 CoverageAnalysis]: Checked inductivity of 462 backedges. 0 proven. 462 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-31 15:00:32,090 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-31 15:00:32,090 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-01-31 15:00:32,090 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-01-31 15:00:32,091 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-01-31 15:00:32,091 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-31 15:00:32,091 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 32 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 32 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-01-31 15:00:32,100 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-31 15:00:32,100 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2019-01-31 15:00:32,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-31 15:00:32,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-31 15:00:32,168 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-31 15:00:33,888 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2019-01-31 15:00:33,892 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-01-31 15:00:33,896 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-31 15:00:33,897 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:15, output treesize:14 [2019-01-31 15:00:33,899 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-01-31 15:00:33,900 WARN L398 uantifierElimination]: Input elimination task: ∃ [v_ULTIMATE.start_main_~str2~6_337]. (and (= ULTIMATE.start_main_~str2~6 (store v_ULTIMATE.start_main_~str2~6_337 20 (select ULTIMATE.start_main_~str1~6 0))) (<= 21 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 21)) [2019-01-31 15:00:33,900 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= (select ULTIMATE.start_main_~str2~6 20) (select ULTIMATE.start_main_~str1~6 0)) (<= 21 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 21)) [2019-01-31 15:00:33,969 INFO L273 TraceCheckUtils]: 0: Hoare triple {11663#true} havoc main_#res;havoc main_#t~nondet0, main_#t~nondet2, main_#t~post1, main_#t~post4, main_#t~post3, main_#t~post6, main_#t~post5, main_~MAX~6, main_~str1~6, main_~str2~6, main_~cont~6, main_~i~6, main_~j~6;main_~MAX~6 := (if main_#t~nondet0 % 4294967296 % 4294967296 <= 2147483647 then main_#t~nondet0 % 4294967296 % 4294967296 else main_#t~nondet0 % 4294967296 % 4294967296 - 4294967296);havoc main_#t~nondet0;havoc main_~str1~6;havoc main_~str2~6;havoc main_~cont~6;havoc main_~i~6;havoc main_~j~6;main_~cont~6 := 0;main_~i~6 := 0; {11665#(and (<= ULTIMATE.start_main_~i~6 0) (<= 0 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:00:33,970 INFO L273 TraceCheckUtils]: 1: Hoare triple {11665#(and (<= ULTIMATE.start_main_~i~6 0) (<= 0 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {11666#(and (<= ULTIMATE.start_main_~i~6 1) (<= 1 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:00:33,971 INFO L273 TraceCheckUtils]: 2: Hoare triple {11666#(and (<= ULTIMATE.start_main_~i~6 1) (<= 1 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {11667#(and (<= ULTIMATE.start_main_~i~6 2) (<= 2 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:00:33,972 INFO L273 TraceCheckUtils]: 3: Hoare triple {11667#(and (<= ULTIMATE.start_main_~i~6 2) (<= 2 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {11668#(and (<= 3 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 3))} is VALID [2019-01-31 15:00:33,973 INFO L273 TraceCheckUtils]: 4: Hoare triple {11668#(and (<= 3 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 3))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {11669#(and (<= ULTIMATE.start_main_~i~6 4) (<= 4 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:00:33,974 INFO L273 TraceCheckUtils]: 5: Hoare triple {11669#(and (<= ULTIMATE.start_main_~i~6 4) (<= 4 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {11670#(and (<= 5 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 5))} is VALID [2019-01-31 15:00:33,975 INFO L273 TraceCheckUtils]: 6: Hoare triple {11670#(and (<= 5 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 5))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {11671#(and (<= ULTIMATE.start_main_~i~6 6) (<= 6 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:00:33,976 INFO L273 TraceCheckUtils]: 7: Hoare triple {11671#(and (<= ULTIMATE.start_main_~i~6 6) (<= 6 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {11672#(and (<= 7 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 7))} is VALID [2019-01-31 15:00:33,977 INFO L273 TraceCheckUtils]: 8: Hoare triple {11672#(and (<= 7 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 7))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {11673#(and (<= ULTIMATE.start_main_~i~6 8) (<= 8 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:00:33,977 INFO L273 TraceCheckUtils]: 9: Hoare triple {11673#(and (<= ULTIMATE.start_main_~i~6 8) (<= 8 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {11674#(and (<= ULTIMATE.start_main_~i~6 9) (<= 9 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:00:33,978 INFO L273 TraceCheckUtils]: 10: Hoare triple {11674#(and (<= ULTIMATE.start_main_~i~6 9) (<= 9 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {11675#(and (<= ULTIMATE.start_main_~i~6 10) (<= 10 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:00:33,979 INFO L273 TraceCheckUtils]: 11: Hoare triple {11675#(and (<= ULTIMATE.start_main_~i~6 10) (<= 10 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {11676#(and (<= 11 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 11))} is VALID [2019-01-31 15:00:33,980 INFO L273 TraceCheckUtils]: 12: Hoare triple {11676#(and (<= 11 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 11))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {11677#(and (<= ULTIMATE.start_main_~i~6 12) (<= 12 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:00:33,981 INFO L273 TraceCheckUtils]: 13: Hoare triple {11677#(and (<= ULTIMATE.start_main_~i~6 12) (<= 12 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {11678#(and (<= ULTIMATE.start_main_~i~6 13) (<= 13 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:00:33,982 INFO L273 TraceCheckUtils]: 14: Hoare triple {11678#(and (<= ULTIMATE.start_main_~i~6 13) (<= 13 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {11679#(and (<= ULTIMATE.start_main_~i~6 14) (<= 14 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:00:33,983 INFO L273 TraceCheckUtils]: 15: Hoare triple {11679#(and (<= ULTIMATE.start_main_~i~6 14) (<= 14 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {11680#(and (<= 15 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 15))} is VALID [2019-01-31 15:00:33,984 INFO L273 TraceCheckUtils]: 16: Hoare triple {11680#(and (<= 15 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 15))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {11681#(and (<= 16 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 16))} is VALID [2019-01-31 15:00:33,985 INFO L273 TraceCheckUtils]: 17: Hoare triple {11681#(and (<= 16 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 16))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {11682#(and (<= ULTIMATE.start_main_~i~6 17) (<= 17 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:00:33,986 INFO L273 TraceCheckUtils]: 18: Hoare triple {11682#(and (<= ULTIMATE.start_main_~i~6 17) (<= 17 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {11683#(and (<= ULTIMATE.start_main_~i~6 18) (<= 18 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:00:33,987 INFO L273 TraceCheckUtils]: 19: Hoare triple {11683#(and (<= ULTIMATE.start_main_~i~6 18) (<= 18 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {11684#(and (<= ULTIMATE.start_main_~i~6 19) (<= 19 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:00:33,988 INFO L273 TraceCheckUtils]: 20: Hoare triple {11684#(and (<= ULTIMATE.start_main_~i~6 19) (<= 19 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {11772#(and (<= ULTIMATE.start_main_~i~6 20) (<= 20 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:00:33,989 INFO L273 TraceCheckUtils]: 21: Hoare triple {11772#(and (<= ULTIMATE.start_main_~i~6 20) (<= 20 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {11776#(and (<= ULTIMATE.start_main_~i~6 21) (<= 21 ULTIMATE.start_main_~MAX~6))} is VALID [2019-01-31 15:00:33,990 INFO L273 TraceCheckUtils]: 22: Hoare triple {11776#(and (<= ULTIMATE.start_main_~i~6 21) (<= 21 ULTIMATE.start_main_~MAX~6))} assume !(main_~i~6 < main_~MAX~6);main_~str1~6 := main_~str1~6[main_~MAX~6 - 1 := 0];main_~j~6 := 0;main_~i~6 := main_~MAX~6 - 1; {11780#(and (= ULTIMATE.start_main_~j~6 0) (<= 21 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 21))} is VALID [2019-01-31 15:00:33,991 INFO L273 TraceCheckUtils]: 23: Hoare triple {11780#(and (= ULTIMATE.start_main_~j~6 0) (<= 21 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 21))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {11784#(and (= ULTIMATE.start_main_~j~6 1) (<= 21 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 21))} is VALID [2019-01-31 15:00:33,991 INFO L273 TraceCheckUtils]: 24: Hoare triple {11784#(and (= ULTIMATE.start_main_~j~6 1) (<= 21 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 21))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {11788#(and (<= 21 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 21) (= ULTIMATE.start_main_~j~6 2))} is VALID [2019-01-31 15:00:33,992 INFO L273 TraceCheckUtils]: 25: Hoare triple {11788#(and (<= 21 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 21) (= ULTIMATE.start_main_~j~6 2))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {11792#(and (<= 21 ULTIMATE.start_main_~MAX~6) (= ULTIMATE.start_main_~j~6 3) (<= ULTIMATE.start_main_~MAX~6 21))} is VALID [2019-01-31 15:00:33,993 INFO L273 TraceCheckUtils]: 26: Hoare triple {11792#(and (<= 21 ULTIMATE.start_main_~MAX~6) (= ULTIMATE.start_main_~j~6 3) (<= ULTIMATE.start_main_~MAX~6 21))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {11796#(and (= ULTIMATE.start_main_~j~6 4) (<= 21 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 21))} is VALID [2019-01-31 15:00:33,994 INFO L273 TraceCheckUtils]: 27: Hoare triple {11796#(and (= ULTIMATE.start_main_~j~6 4) (<= 21 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 21))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {11800#(and (= ULTIMATE.start_main_~j~6 5) (<= 21 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 21))} is VALID [2019-01-31 15:00:33,995 INFO L273 TraceCheckUtils]: 28: Hoare triple {11800#(and (= ULTIMATE.start_main_~j~6 5) (<= 21 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 21))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {11804#(and (<= 21 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 21) (= ULTIMATE.start_main_~j~6 6))} is VALID [2019-01-31 15:00:33,995 INFO L273 TraceCheckUtils]: 29: Hoare triple {11804#(and (<= 21 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 21) (= ULTIMATE.start_main_~j~6 6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {11808#(and (= ULTIMATE.start_main_~j~6 7) (<= 21 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 21))} is VALID [2019-01-31 15:00:33,996 INFO L273 TraceCheckUtils]: 30: Hoare triple {11808#(and (= ULTIMATE.start_main_~j~6 7) (<= 21 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 21))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {11812#(and (= ULTIMATE.start_main_~j~6 8) (<= 21 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 21))} is VALID [2019-01-31 15:00:33,997 INFO L273 TraceCheckUtils]: 31: Hoare triple {11812#(and (= ULTIMATE.start_main_~j~6 8) (<= 21 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 21))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {11816#(and (= ULTIMATE.start_main_~j~6 9) (<= 21 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 21))} is VALID [2019-01-31 15:00:33,998 INFO L273 TraceCheckUtils]: 32: Hoare triple {11816#(and (= ULTIMATE.start_main_~j~6 9) (<= 21 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 21))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {11820#(and (= ULTIMATE.start_main_~j~6 10) (<= 21 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 21))} is VALID [2019-01-31 15:00:33,999 INFO L273 TraceCheckUtils]: 33: Hoare triple {11820#(and (= ULTIMATE.start_main_~j~6 10) (<= 21 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 21))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {11824#(and (<= 21 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 21) (= ULTIMATE.start_main_~j~6 11))} is VALID [2019-01-31 15:00:33,999 INFO L273 TraceCheckUtils]: 34: Hoare triple {11824#(and (<= 21 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 21) (= ULTIMATE.start_main_~j~6 11))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {11828#(and (= ULTIMATE.start_main_~j~6 12) (<= 21 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 21))} is VALID [2019-01-31 15:00:34,000 INFO L273 TraceCheckUtils]: 35: Hoare triple {11828#(and (= ULTIMATE.start_main_~j~6 12) (<= 21 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 21))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {11832#(and (= ULTIMATE.start_main_~j~6 13) (<= 21 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 21))} is VALID [2019-01-31 15:00:34,001 INFO L273 TraceCheckUtils]: 36: Hoare triple {11832#(and (= ULTIMATE.start_main_~j~6 13) (<= 21 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 21))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {11836#(and (= ULTIMATE.start_main_~j~6 14) (<= 21 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 21))} is VALID [2019-01-31 15:00:34,002 INFO L273 TraceCheckUtils]: 37: Hoare triple {11836#(and (= ULTIMATE.start_main_~j~6 14) (<= 21 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 21))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {11840#(and (<= 21 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 21) (= ULTIMATE.start_main_~j~6 15))} is VALID [2019-01-31 15:00:34,003 INFO L273 TraceCheckUtils]: 38: Hoare triple {11840#(and (<= 21 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 21) (= ULTIMATE.start_main_~j~6 15))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {11844#(and (= ULTIMATE.start_main_~j~6 16) (<= 21 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 21))} is VALID [2019-01-31 15:00:34,004 INFO L273 TraceCheckUtils]: 39: Hoare triple {11844#(and (= ULTIMATE.start_main_~j~6 16) (<= 21 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 21))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {11848#(and (= ULTIMATE.start_main_~j~6 17) (<= 21 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 21))} is VALID [2019-01-31 15:00:34,004 INFO L273 TraceCheckUtils]: 40: Hoare triple {11848#(and (= ULTIMATE.start_main_~j~6 17) (<= 21 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 21))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {11852#(and (= ULTIMATE.start_main_~j~6 18) (<= 21 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 21))} is VALID [2019-01-31 15:00:34,005 INFO L273 TraceCheckUtils]: 41: Hoare triple {11852#(and (= ULTIMATE.start_main_~j~6 18) (<= 21 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 21))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {11856#(and (= ULTIMATE.start_main_~j~6 19) (<= 21 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 21))} is VALID [2019-01-31 15:00:34,006 INFO L273 TraceCheckUtils]: 42: Hoare triple {11856#(and (= ULTIMATE.start_main_~j~6 19) (<= 21 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 21))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {11860#(and (= ULTIMATE.start_main_~j~6 20) (<= 21 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 21))} is VALID [2019-01-31 15:00:34,007 INFO L273 TraceCheckUtils]: 43: Hoare triple {11860#(and (= ULTIMATE.start_main_~j~6 20) (<= 21 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 21))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {11864#(and (= (select ULTIMATE.start_main_~str2~6 20) (select ULTIMATE.start_main_~str1~6 0)) (<= 21 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 21))} is VALID [2019-01-31 15:00:34,008 INFO L273 TraceCheckUtils]: 44: Hoare triple {11864#(and (= (select ULTIMATE.start_main_~str2~6 20) (select ULTIMATE.start_main_~str1~6 0)) (<= 21 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 21))} assume !(main_~i~6 >= 0);main_~j~6 := main_~MAX~6 - 1;main_~i~6 := 0;assume !!(main_~i~6 < main_~MAX~6);__VERIFIER_assert_#in~cond := (if main_~str1~6[main_~i~6] == main_~str2~6[main_~j~6] then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond;assume __VERIFIER_assert_~cond == 0;assume !false; {11664#false} is VALID [2019-01-31 15:00:34,008 INFO L273 TraceCheckUtils]: 45: Hoare triple {11664#false} assume !false; {11664#false} is VALID [2019-01-31 15:00:34,013 INFO L134 CoverageAnalysis]: Checked inductivity of 462 backedges. 0 proven. 462 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-31 15:00:34,013 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2019-01-31 15:00:34,047 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 5 [2019-01-31 15:00:34,049 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-01-31 15:00:34,052 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-31 15:00:34,053 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:14, output treesize:5 [2019-01-31 15:00:34,055 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-01-31 15:00:34,055 WARN L398 uantifierElimination]: Input elimination task: ∀ [ULTIMATE.start_main_~str2~6, ULTIMATE.start_main_~str1~6]. (let ((.cse0 (select ULTIMATE.start_main_~str1~6 0))) (= .cse0 (select (store ULTIMATE.start_main_~str2~6 ULTIMATE.start_main_~j~6 .cse0) (+ ULTIMATE.start_main_~MAX~6 (- 1))))) [2019-01-31 15:00:34,055 WARN L399 uantifierElimination]: ElimStorePlain result: ∀ []. (= (+ ULTIMATE.start_main_~j~6 1) ULTIMATE.start_main_~MAX~6) [2019-01-31 15:00:34,609 INFO L273 TraceCheckUtils]: 45: Hoare triple {11664#false} assume !false; {11664#false} is VALID [2019-01-31 15:00:34,610 INFO L273 TraceCheckUtils]: 44: Hoare triple {11708#(= (select ULTIMATE.start_main_~str1~6 0) (select ULTIMATE.start_main_~str2~6 (+ ULTIMATE.start_main_~MAX~6 (- 1))))} assume !(main_~i~6 >= 0);main_~j~6 := main_~MAX~6 - 1;main_~i~6 := 0;assume !!(main_~i~6 < main_~MAX~6);__VERIFIER_assert_#in~cond := (if main_~str1~6[main_~i~6] == main_~str2~6[main_~j~6] then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond;assume __VERIFIER_assert_~cond == 0;assume !false; {11664#false} is VALID [2019-01-31 15:00:34,611 INFO L273 TraceCheckUtils]: 43: Hoare triple {11707#(= (+ ULTIMATE.start_main_~j~6 1) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {11708#(= (select ULTIMATE.start_main_~str1~6 0) (select ULTIMATE.start_main_~str2~6 (+ ULTIMATE.start_main_~MAX~6 (- 1))))} is VALID [2019-01-31 15:00:34,612 INFO L273 TraceCheckUtils]: 42: Hoare triple {11706#(= (+ ULTIMATE.start_main_~j~6 2) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {11707#(= (+ ULTIMATE.start_main_~j~6 1) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:00:34,613 INFO L273 TraceCheckUtils]: 41: Hoare triple {11705#(= (+ ULTIMATE.start_main_~j~6 3) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {11706#(= (+ ULTIMATE.start_main_~j~6 2) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:00:34,614 INFO L273 TraceCheckUtils]: 40: Hoare triple {11704#(= (+ ULTIMATE.start_main_~j~6 4) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {11705#(= (+ ULTIMATE.start_main_~j~6 3) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:00:34,615 INFO L273 TraceCheckUtils]: 39: Hoare triple {11703#(= (+ ULTIMATE.start_main_~j~6 5) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {11704#(= (+ ULTIMATE.start_main_~j~6 4) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:00:34,616 INFO L273 TraceCheckUtils]: 38: Hoare triple {11702#(= (+ ULTIMATE.start_main_~j~6 6) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {11703#(= (+ ULTIMATE.start_main_~j~6 5) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:00:34,617 INFO L273 TraceCheckUtils]: 37: Hoare triple {11701#(= (+ ULTIMATE.start_main_~j~6 7) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {11702#(= (+ ULTIMATE.start_main_~j~6 6) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:00:34,618 INFO L273 TraceCheckUtils]: 36: Hoare triple {11700#(= (+ ULTIMATE.start_main_~j~6 8) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {11701#(= (+ ULTIMATE.start_main_~j~6 7) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:00:34,619 INFO L273 TraceCheckUtils]: 35: Hoare triple {11699#(= (+ ULTIMATE.start_main_~j~6 9) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {11700#(= (+ ULTIMATE.start_main_~j~6 8) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:00:34,620 INFO L273 TraceCheckUtils]: 34: Hoare triple {11698#(= (+ ULTIMATE.start_main_~j~6 10) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {11699#(= (+ ULTIMATE.start_main_~j~6 9) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:00:34,621 INFO L273 TraceCheckUtils]: 33: Hoare triple {11697#(= (+ ULTIMATE.start_main_~j~6 11) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {11698#(= (+ ULTIMATE.start_main_~j~6 10) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:00:34,622 INFO L273 TraceCheckUtils]: 32: Hoare triple {11696#(= (+ ULTIMATE.start_main_~j~6 12) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {11697#(= (+ ULTIMATE.start_main_~j~6 11) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:00:34,623 INFO L273 TraceCheckUtils]: 31: Hoare triple {11695#(= (+ ULTIMATE.start_main_~j~6 13) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {11696#(= (+ ULTIMATE.start_main_~j~6 12) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:00:34,624 INFO L273 TraceCheckUtils]: 30: Hoare triple {11694#(= (+ ULTIMATE.start_main_~j~6 14) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {11695#(= (+ ULTIMATE.start_main_~j~6 13) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:00:34,625 INFO L273 TraceCheckUtils]: 29: Hoare triple {11693#(= (+ ULTIMATE.start_main_~j~6 15) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {11694#(= (+ ULTIMATE.start_main_~j~6 14) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:00:34,625 INFO L273 TraceCheckUtils]: 28: Hoare triple {11692#(= (+ ULTIMATE.start_main_~j~6 16) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {11693#(= (+ ULTIMATE.start_main_~j~6 15) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:00:34,626 INFO L273 TraceCheckUtils]: 27: Hoare triple {11691#(= (+ ULTIMATE.start_main_~j~6 17) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {11692#(= (+ ULTIMATE.start_main_~j~6 16) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:00:34,627 INFO L273 TraceCheckUtils]: 26: Hoare triple {11690#(= (+ ULTIMATE.start_main_~j~6 18) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {11691#(= (+ ULTIMATE.start_main_~j~6 17) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:00:34,628 INFO L273 TraceCheckUtils]: 25: Hoare triple {11689#(= (+ ULTIMATE.start_main_~j~6 19) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {11690#(= (+ ULTIMATE.start_main_~j~6 18) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:00:34,629 INFO L273 TraceCheckUtils]: 24: Hoare triple {11688#(= (+ ULTIMATE.start_main_~j~6 20) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {11689#(= (+ ULTIMATE.start_main_~j~6 19) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:00:34,630 INFO L273 TraceCheckUtils]: 23: Hoare triple {11687#(= (+ ULTIMATE.start_main_~j~6 21) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {11688#(= (+ ULTIMATE.start_main_~j~6 20) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:00:34,631 INFO L273 TraceCheckUtils]: 22: Hoare triple {11686#(or (= 21 ULTIMATE.start_main_~MAX~6) (<= (+ ULTIMATE.start_main_~i~6 1) ULTIMATE.start_main_~MAX~6))} assume !(main_~i~6 < main_~MAX~6);main_~str1~6 := main_~str1~6[main_~MAX~6 - 1 := 0];main_~j~6 := 0;main_~i~6 := main_~MAX~6 - 1; {11687#(= (+ ULTIMATE.start_main_~j~6 21) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:00:34,632 INFO L273 TraceCheckUtils]: 21: Hoare triple {11772#(and (<= ULTIMATE.start_main_~i~6 20) (<= 20 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {11686#(or (= 21 ULTIMATE.start_main_~MAX~6) (<= (+ ULTIMATE.start_main_~i~6 1) ULTIMATE.start_main_~MAX~6))} is VALID [2019-01-31 15:00:34,633 INFO L273 TraceCheckUtils]: 20: Hoare triple {11684#(and (<= ULTIMATE.start_main_~i~6 19) (<= 19 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {11772#(and (<= ULTIMATE.start_main_~i~6 20) (<= 20 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:00:34,635 INFO L273 TraceCheckUtils]: 19: Hoare triple {11683#(and (<= ULTIMATE.start_main_~i~6 18) (<= 18 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {11684#(and (<= ULTIMATE.start_main_~i~6 19) (<= 19 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:00:34,636 INFO L273 TraceCheckUtils]: 18: Hoare triple {11682#(and (<= ULTIMATE.start_main_~i~6 17) (<= 17 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {11683#(and (<= ULTIMATE.start_main_~i~6 18) (<= 18 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:00:34,637 INFO L273 TraceCheckUtils]: 17: Hoare triple {11681#(and (<= 16 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 16))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {11682#(and (<= ULTIMATE.start_main_~i~6 17) (<= 17 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:00:34,638 INFO L273 TraceCheckUtils]: 16: Hoare triple {11680#(and (<= 15 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 15))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {11681#(and (<= 16 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 16))} is VALID [2019-01-31 15:00:34,639 INFO L273 TraceCheckUtils]: 15: Hoare triple {11679#(and (<= ULTIMATE.start_main_~i~6 14) (<= 14 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {11680#(and (<= 15 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 15))} is VALID [2019-01-31 15:00:34,640 INFO L273 TraceCheckUtils]: 14: Hoare triple {11678#(and (<= ULTIMATE.start_main_~i~6 13) (<= 13 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {11679#(and (<= ULTIMATE.start_main_~i~6 14) (<= 14 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:00:34,641 INFO L273 TraceCheckUtils]: 13: Hoare triple {11677#(and (<= ULTIMATE.start_main_~i~6 12) (<= 12 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {11678#(and (<= ULTIMATE.start_main_~i~6 13) (<= 13 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:00:34,642 INFO L273 TraceCheckUtils]: 12: Hoare triple {11676#(and (<= 11 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 11))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {11677#(and (<= ULTIMATE.start_main_~i~6 12) (<= 12 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:00:34,643 INFO L273 TraceCheckUtils]: 11: Hoare triple {11675#(and (<= ULTIMATE.start_main_~i~6 10) (<= 10 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {11676#(and (<= 11 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 11))} is VALID [2019-01-31 15:00:34,644 INFO L273 TraceCheckUtils]: 10: Hoare triple {11674#(and (<= ULTIMATE.start_main_~i~6 9) (<= 9 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {11675#(and (<= ULTIMATE.start_main_~i~6 10) (<= 10 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:00:34,645 INFO L273 TraceCheckUtils]: 9: Hoare triple {11673#(and (<= ULTIMATE.start_main_~i~6 8) (<= 8 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {11674#(and (<= ULTIMATE.start_main_~i~6 9) (<= 9 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:00:34,646 INFO L273 TraceCheckUtils]: 8: Hoare triple {11672#(and (<= 7 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 7))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {11673#(and (<= ULTIMATE.start_main_~i~6 8) (<= 8 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:00:34,649 INFO L273 TraceCheckUtils]: 7: Hoare triple {11671#(and (<= ULTIMATE.start_main_~i~6 6) (<= 6 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {11672#(and (<= 7 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 7))} is VALID [2019-01-31 15:00:34,650 INFO L273 TraceCheckUtils]: 6: Hoare triple {11670#(and (<= 5 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 5))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {11671#(and (<= ULTIMATE.start_main_~i~6 6) (<= 6 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:00:34,651 INFO L273 TraceCheckUtils]: 5: Hoare triple {11669#(and (<= ULTIMATE.start_main_~i~6 4) (<= 4 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {11670#(and (<= 5 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 5))} is VALID [2019-01-31 15:00:34,651 INFO L273 TraceCheckUtils]: 4: Hoare triple {11668#(and (<= 3 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 3))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {11669#(and (<= ULTIMATE.start_main_~i~6 4) (<= 4 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:00:34,652 INFO L273 TraceCheckUtils]: 3: Hoare triple {11667#(and (<= ULTIMATE.start_main_~i~6 2) (<= 2 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {11668#(and (<= 3 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 3))} is VALID [2019-01-31 15:00:34,652 INFO L273 TraceCheckUtils]: 2: Hoare triple {11666#(and (<= ULTIMATE.start_main_~i~6 1) (<= 1 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {11667#(and (<= ULTIMATE.start_main_~i~6 2) (<= 2 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:00:34,653 INFO L273 TraceCheckUtils]: 1: Hoare triple {11665#(and (<= ULTIMATE.start_main_~i~6 0) (<= 0 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {11666#(and (<= ULTIMATE.start_main_~i~6 1) (<= 1 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:00:34,653 INFO L273 TraceCheckUtils]: 0: Hoare triple {11663#true} havoc main_#res;havoc main_#t~nondet0, main_#t~nondet2, main_#t~post1, main_#t~post4, main_#t~post3, main_#t~post6, main_#t~post5, main_~MAX~6, main_~str1~6, main_~str2~6, main_~cont~6, main_~i~6, main_~j~6;main_~MAX~6 := (if main_#t~nondet0 % 4294967296 % 4294967296 <= 2147483647 then main_#t~nondet0 % 4294967296 % 4294967296 else main_#t~nondet0 % 4294967296 % 4294967296 - 4294967296);havoc main_#t~nondet0;havoc main_~str1~6;havoc main_~str2~6;havoc main_~cont~6;havoc main_~i~6;havoc main_~j~6;main_~cont~6 := 0;main_~i~6 := 0; {11665#(and (<= ULTIMATE.start_main_~i~6 0) (<= 0 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:00:34,657 INFO L134 CoverageAnalysis]: Checked inductivity of 462 backedges. 0 proven. 462 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-31 15:00:34,675 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-01-31 15:00:34,676 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [45, 45, 45] total 69 [2019-01-31 15:00:34,676 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-01-31 15:00:34,676 INFO L78 Accepts]: Start accepts. Automaton has 70 states. Word has length 46 [2019-01-31 15:00:34,676 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-01-31 15:00:34,676 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 70 states. [2019-01-31 15:00:34,745 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 71 edges. 71 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-01-31 15:00:34,745 INFO L459 AbstractCegarLoop]: Interpolant automaton has 70 states [2019-01-31 15:00:34,746 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 70 interpolants. [2019-01-31 15:00:34,746 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=205, Invalid=4625, Unknown=0, NotChecked=0, Total=4830 [2019-01-31 15:00:34,746 INFO L87 Difference]: Start difference. First operand 47 states and 48 transitions. Second operand 70 states. [2019-01-31 15:00:44,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 15:00:44,046 INFO L93 Difference]: Finished difference Result 72 states and 74 transitions. [2019-01-31 15:00:44,046 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2019-01-31 15:00:44,046 INFO L78 Accepts]: Start accepts. Automaton has 70 states. Word has length 46 [2019-01-31 15:00:44,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-31 15:00:44,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 70 states. [2019-01-31 15:00:44,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 54 transitions. [2019-01-31 15:00:44,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 70 states. [2019-01-31 15:00:44,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 54 transitions. [2019-01-31 15:00:44,048 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 49 states and 54 transitions. [2019-01-31 15:00:44,104 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 54 edges. 54 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-01-31 15:00:44,105 INFO L225 Difference]: With dead ends: 72 [2019-01-31 15:00:44,105 INFO L226 Difference]: Without dead ends: 48 [2019-01-31 15:00:44,106 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 51 SyntacticMatches, 16 SemanticMatches, 92 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1393 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=434, Invalid=8308, Unknown=0, NotChecked=0, Total=8742 [2019-01-31 15:00:44,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2019-01-31 15:00:44,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2019-01-31 15:00:44,905 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-01-31 15:00:44,905 INFO L82 GeneralOperation]: Start isEquivalent. First operand 48 states. Second operand 48 states. [2019-01-31 15:00:44,905 INFO L74 IsIncluded]: Start isIncluded. First operand 48 states. Second operand 48 states. [2019-01-31 15:00:44,906 INFO L87 Difference]: Start difference. First operand 48 states. Second operand 48 states. [2019-01-31 15:00:44,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 15:00:44,907 INFO L93 Difference]: Finished difference Result 48 states and 49 transitions. [2019-01-31 15:00:44,907 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 49 transitions. [2019-01-31 15:00:44,907 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-31 15:00:44,907 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-01-31 15:00:44,907 INFO L74 IsIncluded]: Start isIncluded. First operand 48 states. Second operand 48 states. [2019-01-31 15:00:44,907 INFO L87 Difference]: Start difference. First operand 48 states. Second operand 48 states. [2019-01-31 15:00:44,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 15:00:44,908 INFO L93 Difference]: Finished difference Result 48 states and 49 transitions. [2019-01-31 15:00:44,909 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 49 transitions. [2019-01-31 15:00:44,909 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-31 15:00:44,909 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-01-31 15:00:44,909 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-01-31 15:00:44,909 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-01-31 15:00:44,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2019-01-31 15:00:44,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 49 transitions. [2019-01-31 15:00:44,910 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 49 transitions. Word has length 46 [2019-01-31 15:00:44,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-31 15:00:44,910 INFO L480 AbstractCegarLoop]: Abstraction has 48 states and 49 transitions. [2019-01-31 15:00:44,910 INFO L481 AbstractCegarLoop]: Interpolant automaton has 70 states. [2019-01-31 15:00:44,910 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 49 transitions. [2019-01-31 15:00:44,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2019-01-31 15:00:44,910 INFO L394 BasicCegarLoop]: Found error trace [2019-01-31 15:00:44,910 INFO L402 BasicCegarLoop]: trace histogram [22, 21, 1, 1, 1, 1] [2019-01-31 15:00:44,911 INFO L423 AbstractCegarLoop]: === Iteration 34 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2019-01-31 15:00:44,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-31 15:00:44,911 INFO L82 PathProgramCache]: Analyzing trace with hash 259355244, now seen corresponding path program 32 times [2019-01-31 15:00:44,911 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-01-31 15:00:44,911 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-31 15:00:44,912 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-31 15:00:44,912 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-31 15:00:44,912 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-01-31 15:00:44,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-31 15:00:45,360 INFO L273 TraceCheckUtils]: 0: Hoare triple {12384#true} havoc main_#res;havoc main_#t~nondet0, main_#t~nondet2, main_#t~post1, main_#t~post4, main_#t~post3, main_#t~post6, main_#t~post5, main_~MAX~6, main_~str1~6, main_~str2~6, main_~cont~6, main_~i~6, main_~j~6;main_~MAX~6 := (if main_#t~nondet0 % 4294967296 % 4294967296 <= 2147483647 then main_#t~nondet0 % 4294967296 % 4294967296 else main_#t~nondet0 % 4294967296 % 4294967296 - 4294967296);havoc main_#t~nondet0;havoc main_~str1~6;havoc main_~str2~6;havoc main_~cont~6;havoc main_~i~6;havoc main_~j~6;main_~cont~6 := 0;main_~i~6 := 0; {12386#(<= 0 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:00:45,361 INFO L273 TraceCheckUtils]: 1: Hoare triple {12386#(<= 0 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {12387#(<= 1 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:00:45,361 INFO L273 TraceCheckUtils]: 2: Hoare triple {12387#(<= 1 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {12388#(<= 2 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:00:45,362 INFO L273 TraceCheckUtils]: 3: Hoare triple {12388#(<= 2 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {12389#(<= 3 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:00:45,363 INFO L273 TraceCheckUtils]: 4: Hoare triple {12389#(<= 3 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {12390#(<= 4 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:00:45,363 INFO L273 TraceCheckUtils]: 5: Hoare triple {12390#(<= 4 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {12391#(<= 5 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:00:45,364 INFO L273 TraceCheckUtils]: 6: Hoare triple {12391#(<= 5 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {12392#(<= 6 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:00:45,365 INFO L273 TraceCheckUtils]: 7: Hoare triple {12392#(<= 6 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {12393#(<= 7 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:00:45,366 INFO L273 TraceCheckUtils]: 8: Hoare triple {12393#(<= 7 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {12394#(<= 8 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:00:45,367 INFO L273 TraceCheckUtils]: 9: Hoare triple {12394#(<= 8 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {12395#(<= 9 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:00:45,368 INFO L273 TraceCheckUtils]: 10: Hoare triple {12395#(<= 9 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {12396#(<= 10 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:00:45,369 INFO L273 TraceCheckUtils]: 11: Hoare triple {12396#(<= 10 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {12397#(<= 11 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:00:45,372 INFO L273 TraceCheckUtils]: 12: Hoare triple {12397#(<= 11 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {12398#(<= 12 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:00:45,373 INFO L273 TraceCheckUtils]: 13: Hoare triple {12398#(<= 12 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {12399#(<= 13 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:00:45,373 INFO L273 TraceCheckUtils]: 14: Hoare triple {12399#(<= 13 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {12400#(<= 14 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:00:45,374 INFO L273 TraceCheckUtils]: 15: Hoare triple {12400#(<= 14 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {12401#(<= 15 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:00:45,374 INFO L273 TraceCheckUtils]: 16: Hoare triple {12401#(<= 15 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {12402#(<= 16 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:00:45,375 INFO L273 TraceCheckUtils]: 17: Hoare triple {12402#(<= 16 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {12403#(<= 17 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:00:45,375 INFO L273 TraceCheckUtils]: 18: Hoare triple {12403#(<= 17 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {12404#(<= 18 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:00:45,376 INFO L273 TraceCheckUtils]: 19: Hoare triple {12404#(<= 18 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {12405#(<= 19 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:00:45,377 INFO L273 TraceCheckUtils]: 20: Hoare triple {12405#(<= 19 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {12406#(<= 20 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:00:45,378 INFO L273 TraceCheckUtils]: 21: Hoare triple {12406#(<= 20 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {12407#(<= 21 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:00:45,379 INFO L273 TraceCheckUtils]: 22: Hoare triple {12407#(<= 21 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {12408#(<= 22 ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:00:45,379 INFO L273 TraceCheckUtils]: 23: Hoare triple {12408#(<= 22 ULTIMATE.start_main_~MAX~6)} assume !(main_~i~6 < main_~MAX~6);main_~str1~6 := main_~str1~6[main_~MAX~6 - 1 := 0];main_~j~6 := 0;main_~i~6 := main_~MAX~6 - 1; {12407#(<= 21 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:00:45,380 INFO L273 TraceCheckUtils]: 24: Hoare triple {12407#(<= 21 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {12406#(<= 20 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:00:45,381 INFO L273 TraceCheckUtils]: 25: Hoare triple {12406#(<= 20 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {12405#(<= 19 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:00:45,382 INFO L273 TraceCheckUtils]: 26: Hoare triple {12405#(<= 19 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {12404#(<= 18 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:00:45,383 INFO L273 TraceCheckUtils]: 27: Hoare triple {12404#(<= 18 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {12403#(<= 17 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:00:45,384 INFO L273 TraceCheckUtils]: 28: Hoare triple {12403#(<= 17 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {12402#(<= 16 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:00:45,385 INFO L273 TraceCheckUtils]: 29: Hoare triple {12402#(<= 16 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {12401#(<= 15 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:00:45,385 INFO L273 TraceCheckUtils]: 30: Hoare triple {12401#(<= 15 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {12400#(<= 14 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:00:45,386 INFO L273 TraceCheckUtils]: 31: Hoare triple {12400#(<= 14 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {12399#(<= 13 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:00:45,387 INFO L273 TraceCheckUtils]: 32: Hoare triple {12399#(<= 13 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {12398#(<= 12 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:00:45,388 INFO L273 TraceCheckUtils]: 33: Hoare triple {12398#(<= 12 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {12397#(<= 11 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:00:45,389 INFO L273 TraceCheckUtils]: 34: Hoare triple {12397#(<= 11 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {12396#(<= 10 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:00:45,390 INFO L273 TraceCheckUtils]: 35: Hoare triple {12396#(<= 10 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {12395#(<= 9 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:00:45,391 INFO L273 TraceCheckUtils]: 36: Hoare triple {12395#(<= 9 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {12394#(<= 8 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:00:45,392 INFO L273 TraceCheckUtils]: 37: Hoare triple {12394#(<= 8 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {12393#(<= 7 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:00:45,393 INFO L273 TraceCheckUtils]: 38: Hoare triple {12393#(<= 7 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {12392#(<= 6 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:00:45,394 INFO L273 TraceCheckUtils]: 39: Hoare triple {12392#(<= 6 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {12391#(<= 5 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:00:45,394 INFO L273 TraceCheckUtils]: 40: Hoare triple {12391#(<= 5 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {12390#(<= 4 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:00:45,395 INFO L273 TraceCheckUtils]: 41: Hoare triple {12390#(<= 4 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {12389#(<= 3 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:00:45,396 INFO L273 TraceCheckUtils]: 42: Hoare triple {12389#(<= 3 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {12388#(<= 2 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:00:45,397 INFO L273 TraceCheckUtils]: 43: Hoare triple {12388#(<= 2 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {12387#(<= 1 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:00:45,398 INFO L273 TraceCheckUtils]: 44: Hoare triple {12387#(<= 1 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {12386#(<= 0 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:00:45,399 INFO L273 TraceCheckUtils]: 45: Hoare triple {12386#(<= 0 ULTIMATE.start_main_~i~6)} assume !(main_~i~6 >= 0);main_~j~6 := main_~MAX~6 - 1;main_~i~6 := 0;assume !!(main_~i~6 < main_~MAX~6);__VERIFIER_assert_#in~cond := (if main_~str1~6[main_~i~6] == main_~str2~6[main_~j~6] then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond;assume __VERIFIER_assert_~cond == 0;assume !false; {12385#false} is VALID [2019-01-31 15:00:45,399 INFO L273 TraceCheckUtils]: 46: Hoare triple {12385#false} assume !false; {12385#false} is VALID [2019-01-31 15:00:45,402 INFO L134 CoverageAnalysis]: Checked inductivity of 484 backedges. 231 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-31 15:00:45,402 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-31 15:00:45,402 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-01-31 15:00:45,403 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-01-31 15:00:45,403 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-01-31 15:00:45,403 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-31 15:00:45,403 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 33 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 33 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-01-31 15:00:45,412 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2019-01-31 15:00:45,412 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST2 (IT: FPandBP) [2019-01-31 15:00:45,490 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 12 check-sat command(s) [2019-01-31 15:00:45,490 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-01-31 15:00:45,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-31 15:00:45,512 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-31 15:00:45,749 INFO L273 TraceCheckUtils]: 0: Hoare triple {12384#true} havoc main_#res;havoc main_#t~nondet0, main_#t~nondet2, main_#t~post1, main_#t~post4, main_#t~post3, main_#t~post6, main_#t~post5, main_~MAX~6, main_~str1~6, main_~str2~6, main_~cont~6, main_~i~6, main_~j~6;main_~MAX~6 := (if main_#t~nondet0 % 4294967296 % 4294967296 <= 2147483647 then main_#t~nondet0 % 4294967296 % 4294967296 else main_#t~nondet0 % 4294967296 % 4294967296 - 4294967296);havoc main_#t~nondet0;havoc main_~str1~6;havoc main_~str2~6;havoc main_~cont~6;havoc main_~i~6;havoc main_~j~6;main_~cont~6 := 0;main_~i~6 := 0; {12386#(<= 0 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:00:45,750 INFO L273 TraceCheckUtils]: 1: Hoare triple {12386#(<= 0 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {12387#(<= 1 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:00:45,751 INFO L273 TraceCheckUtils]: 2: Hoare triple {12387#(<= 1 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {12388#(<= 2 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:00:45,752 INFO L273 TraceCheckUtils]: 3: Hoare triple {12388#(<= 2 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {12389#(<= 3 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:00:45,753 INFO L273 TraceCheckUtils]: 4: Hoare triple {12389#(<= 3 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {12390#(<= 4 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:00:45,754 INFO L273 TraceCheckUtils]: 5: Hoare triple {12390#(<= 4 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {12391#(<= 5 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:00:45,755 INFO L273 TraceCheckUtils]: 6: Hoare triple {12391#(<= 5 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {12392#(<= 6 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:00:45,755 INFO L273 TraceCheckUtils]: 7: Hoare triple {12392#(<= 6 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {12393#(<= 7 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:00:45,756 INFO L273 TraceCheckUtils]: 8: Hoare triple {12393#(<= 7 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {12394#(<= 8 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:00:45,757 INFO L273 TraceCheckUtils]: 9: Hoare triple {12394#(<= 8 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {12395#(<= 9 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:00:45,758 INFO L273 TraceCheckUtils]: 10: Hoare triple {12395#(<= 9 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {12396#(<= 10 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:00:45,759 INFO L273 TraceCheckUtils]: 11: Hoare triple {12396#(<= 10 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {12397#(<= 11 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:00:45,760 INFO L273 TraceCheckUtils]: 12: Hoare triple {12397#(<= 11 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {12398#(<= 12 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:00:45,761 INFO L273 TraceCheckUtils]: 13: Hoare triple {12398#(<= 12 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {12399#(<= 13 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:00:45,761 INFO L273 TraceCheckUtils]: 14: Hoare triple {12399#(<= 13 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {12400#(<= 14 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:00:45,762 INFO L273 TraceCheckUtils]: 15: Hoare triple {12400#(<= 14 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {12401#(<= 15 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:00:45,763 INFO L273 TraceCheckUtils]: 16: Hoare triple {12401#(<= 15 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {12402#(<= 16 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:00:45,764 INFO L273 TraceCheckUtils]: 17: Hoare triple {12402#(<= 16 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {12403#(<= 17 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:00:45,765 INFO L273 TraceCheckUtils]: 18: Hoare triple {12403#(<= 17 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {12404#(<= 18 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:00:45,766 INFO L273 TraceCheckUtils]: 19: Hoare triple {12404#(<= 18 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {12405#(<= 19 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:00:45,767 INFO L273 TraceCheckUtils]: 20: Hoare triple {12405#(<= 19 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {12406#(<= 20 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:00:45,768 INFO L273 TraceCheckUtils]: 21: Hoare triple {12406#(<= 20 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {12407#(<= 21 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:00:45,768 INFO L273 TraceCheckUtils]: 22: Hoare triple {12407#(<= 21 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {12408#(<= 22 ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:00:45,769 INFO L273 TraceCheckUtils]: 23: Hoare triple {12408#(<= 22 ULTIMATE.start_main_~MAX~6)} assume !(main_~i~6 < main_~MAX~6);main_~str1~6 := main_~str1~6[main_~MAX~6 - 1 := 0];main_~j~6 := 0;main_~i~6 := main_~MAX~6 - 1; {12407#(<= 21 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:00:45,770 INFO L273 TraceCheckUtils]: 24: Hoare triple {12407#(<= 21 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {12406#(<= 20 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:00:45,771 INFO L273 TraceCheckUtils]: 25: Hoare triple {12406#(<= 20 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {12405#(<= 19 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:00:45,772 INFO L273 TraceCheckUtils]: 26: Hoare triple {12405#(<= 19 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {12404#(<= 18 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:00:45,773 INFO L273 TraceCheckUtils]: 27: Hoare triple {12404#(<= 18 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {12403#(<= 17 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:00:45,774 INFO L273 TraceCheckUtils]: 28: Hoare triple {12403#(<= 17 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {12402#(<= 16 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:00:45,783 INFO L273 TraceCheckUtils]: 29: Hoare triple {12402#(<= 16 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {12401#(<= 15 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:00:45,783 INFO L273 TraceCheckUtils]: 30: Hoare triple {12401#(<= 15 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {12400#(<= 14 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:00:45,784 INFO L273 TraceCheckUtils]: 31: Hoare triple {12400#(<= 14 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {12399#(<= 13 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:00:45,784 INFO L273 TraceCheckUtils]: 32: Hoare triple {12399#(<= 13 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {12398#(<= 12 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:00:45,785 INFO L273 TraceCheckUtils]: 33: Hoare triple {12398#(<= 12 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {12397#(<= 11 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:00:45,786 INFO L273 TraceCheckUtils]: 34: Hoare triple {12397#(<= 11 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {12396#(<= 10 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:00:45,786 INFO L273 TraceCheckUtils]: 35: Hoare triple {12396#(<= 10 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {12395#(<= 9 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:00:45,787 INFO L273 TraceCheckUtils]: 36: Hoare triple {12395#(<= 9 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {12394#(<= 8 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:00:45,788 INFO L273 TraceCheckUtils]: 37: Hoare triple {12394#(<= 8 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {12393#(<= 7 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:00:45,789 INFO L273 TraceCheckUtils]: 38: Hoare triple {12393#(<= 7 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {12392#(<= 6 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:00:45,790 INFO L273 TraceCheckUtils]: 39: Hoare triple {12392#(<= 6 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {12391#(<= 5 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:00:45,791 INFO L273 TraceCheckUtils]: 40: Hoare triple {12391#(<= 5 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {12390#(<= 4 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:00:45,792 INFO L273 TraceCheckUtils]: 41: Hoare triple {12390#(<= 4 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {12389#(<= 3 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:00:45,792 INFO L273 TraceCheckUtils]: 42: Hoare triple {12389#(<= 3 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {12388#(<= 2 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:00:45,793 INFO L273 TraceCheckUtils]: 43: Hoare triple {12388#(<= 2 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {12387#(<= 1 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:00:45,794 INFO L273 TraceCheckUtils]: 44: Hoare triple {12387#(<= 1 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {12386#(<= 0 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:00:45,795 INFO L273 TraceCheckUtils]: 45: Hoare triple {12386#(<= 0 ULTIMATE.start_main_~i~6)} assume !(main_~i~6 >= 0);main_~j~6 := main_~MAX~6 - 1;main_~i~6 := 0;assume !!(main_~i~6 < main_~MAX~6);__VERIFIER_assert_#in~cond := (if main_~str1~6[main_~i~6] == main_~str2~6[main_~j~6] then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond;assume __VERIFIER_assert_~cond == 0;assume !false; {12385#false} is VALID [2019-01-31 15:00:45,795 INFO L273 TraceCheckUtils]: 46: Hoare triple {12385#false} assume !false; {12385#false} is VALID [2019-01-31 15:00:45,798 INFO L134 CoverageAnalysis]: Checked inductivity of 484 backedges. 231 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-31 15:00:45,798 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2019-01-31 15:00:46,489 INFO L273 TraceCheckUtils]: 46: Hoare triple {12385#false} assume !false; {12385#false} is VALID [2019-01-31 15:00:46,490 INFO L273 TraceCheckUtils]: 45: Hoare triple {12386#(<= 0 ULTIMATE.start_main_~i~6)} assume !(main_~i~6 >= 0);main_~j~6 := main_~MAX~6 - 1;main_~i~6 := 0;assume !!(main_~i~6 < main_~MAX~6);__VERIFIER_assert_#in~cond := (if main_~str1~6[main_~i~6] == main_~str2~6[main_~j~6] then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond;assume __VERIFIER_assert_~cond == 0;assume !false; {12385#false} is VALID [2019-01-31 15:00:46,491 INFO L273 TraceCheckUtils]: 44: Hoare triple {12387#(<= 1 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {12386#(<= 0 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:00:46,491 INFO L273 TraceCheckUtils]: 43: Hoare triple {12388#(<= 2 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {12387#(<= 1 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:00:46,492 INFO L273 TraceCheckUtils]: 42: Hoare triple {12389#(<= 3 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {12388#(<= 2 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:00:46,492 INFO L273 TraceCheckUtils]: 41: Hoare triple {12390#(<= 4 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {12389#(<= 3 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:00:46,493 INFO L273 TraceCheckUtils]: 40: Hoare triple {12391#(<= 5 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {12390#(<= 4 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:00:46,493 INFO L273 TraceCheckUtils]: 39: Hoare triple {12392#(<= 6 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {12391#(<= 5 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:00:46,494 INFO L273 TraceCheckUtils]: 38: Hoare triple {12393#(<= 7 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {12392#(<= 6 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:00:46,495 INFO L273 TraceCheckUtils]: 37: Hoare triple {12394#(<= 8 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {12393#(<= 7 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:00:46,496 INFO L273 TraceCheckUtils]: 36: Hoare triple {12395#(<= 9 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {12394#(<= 8 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:00:46,497 INFO L273 TraceCheckUtils]: 35: Hoare triple {12396#(<= 10 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {12395#(<= 9 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:00:46,498 INFO L273 TraceCheckUtils]: 34: Hoare triple {12397#(<= 11 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {12396#(<= 10 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:00:46,499 INFO L273 TraceCheckUtils]: 33: Hoare triple {12398#(<= 12 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {12397#(<= 11 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:00:46,500 INFO L273 TraceCheckUtils]: 32: Hoare triple {12399#(<= 13 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {12398#(<= 12 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:00:46,500 INFO L273 TraceCheckUtils]: 31: Hoare triple {12400#(<= 14 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {12399#(<= 13 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:00:46,501 INFO L273 TraceCheckUtils]: 30: Hoare triple {12401#(<= 15 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {12400#(<= 14 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:00:46,510 INFO L273 TraceCheckUtils]: 29: Hoare triple {12402#(<= 16 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {12401#(<= 15 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:00:46,511 INFO L273 TraceCheckUtils]: 28: Hoare triple {12403#(<= 17 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {12402#(<= 16 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:00:46,511 INFO L273 TraceCheckUtils]: 27: Hoare triple {12404#(<= 18 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {12403#(<= 17 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:00:46,512 INFO L273 TraceCheckUtils]: 26: Hoare triple {12405#(<= 19 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {12404#(<= 18 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:00:46,512 INFO L273 TraceCheckUtils]: 25: Hoare triple {12406#(<= 20 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {12405#(<= 19 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:00:46,513 INFO L273 TraceCheckUtils]: 24: Hoare triple {12407#(<= 21 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {12406#(<= 20 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:00:46,514 INFO L273 TraceCheckUtils]: 23: Hoare triple {12408#(<= 22 ULTIMATE.start_main_~MAX~6)} assume !(main_~i~6 < main_~MAX~6);main_~str1~6 := main_~str1~6[main_~MAX~6 - 1 := 0];main_~j~6 := 0;main_~i~6 := main_~MAX~6 - 1; {12407#(<= 21 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:00:46,514 INFO L273 TraceCheckUtils]: 22: Hoare triple {12407#(<= 21 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {12408#(<= 22 ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:00:46,515 INFO L273 TraceCheckUtils]: 21: Hoare triple {12406#(<= 20 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {12407#(<= 21 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:00:46,516 INFO L273 TraceCheckUtils]: 20: Hoare triple {12405#(<= 19 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {12406#(<= 20 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:00:46,517 INFO L273 TraceCheckUtils]: 19: Hoare triple {12404#(<= 18 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {12405#(<= 19 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:00:46,518 INFO L273 TraceCheckUtils]: 18: Hoare triple {12403#(<= 17 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {12404#(<= 18 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:00:46,519 INFO L273 TraceCheckUtils]: 17: Hoare triple {12402#(<= 16 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {12403#(<= 17 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:00:46,519 INFO L273 TraceCheckUtils]: 16: Hoare triple {12401#(<= 15 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {12402#(<= 16 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:00:46,520 INFO L273 TraceCheckUtils]: 15: Hoare triple {12400#(<= 14 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {12401#(<= 15 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:00:46,521 INFO L273 TraceCheckUtils]: 14: Hoare triple {12399#(<= 13 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {12400#(<= 14 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:00:46,522 INFO L273 TraceCheckUtils]: 13: Hoare triple {12398#(<= 12 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {12399#(<= 13 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:00:46,523 INFO L273 TraceCheckUtils]: 12: Hoare triple {12397#(<= 11 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {12398#(<= 12 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:00:46,524 INFO L273 TraceCheckUtils]: 11: Hoare triple {12396#(<= 10 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {12397#(<= 11 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:00:46,525 INFO L273 TraceCheckUtils]: 10: Hoare triple {12395#(<= 9 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {12396#(<= 10 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:00:46,525 INFO L273 TraceCheckUtils]: 9: Hoare triple {12394#(<= 8 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {12395#(<= 9 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:00:46,526 INFO L273 TraceCheckUtils]: 8: Hoare triple {12393#(<= 7 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {12394#(<= 8 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:00:46,527 INFO L273 TraceCheckUtils]: 7: Hoare triple {12392#(<= 6 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {12393#(<= 7 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:00:46,528 INFO L273 TraceCheckUtils]: 6: Hoare triple {12391#(<= 5 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {12392#(<= 6 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:00:46,529 INFO L273 TraceCheckUtils]: 5: Hoare triple {12390#(<= 4 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {12391#(<= 5 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:00:46,530 INFO L273 TraceCheckUtils]: 4: Hoare triple {12389#(<= 3 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {12390#(<= 4 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:00:46,531 INFO L273 TraceCheckUtils]: 3: Hoare triple {12388#(<= 2 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {12389#(<= 3 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:00:46,532 INFO L273 TraceCheckUtils]: 2: Hoare triple {12387#(<= 1 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {12388#(<= 2 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:00:46,532 INFO L273 TraceCheckUtils]: 1: Hoare triple {12386#(<= 0 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {12387#(<= 1 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:00:46,533 INFO L273 TraceCheckUtils]: 0: Hoare triple {12384#true} havoc main_#res;havoc main_#t~nondet0, main_#t~nondet2, main_#t~post1, main_#t~post4, main_#t~post3, main_#t~post6, main_#t~post5, main_~MAX~6, main_~str1~6, main_~str2~6, main_~cont~6, main_~i~6, main_~j~6;main_~MAX~6 := (if main_#t~nondet0 % 4294967296 % 4294967296 <= 2147483647 then main_#t~nondet0 % 4294967296 % 4294967296 else main_#t~nondet0 % 4294967296 % 4294967296 - 4294967296);havoc main_#t~nondet0;havoc main_~str1~6;havoc main_~str2~6;havoc main_~cont~6;havoc main_~i~6;havoc main_~j~6;main_~cont~6 := 0;main_~i~6 := 0; {12386#(<= 0 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:00:46,536 INFO L134 CoverageAnalysis]: Checked inductivity of 484 backedges. 231 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-31 15:00:46,556 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-01-31 15:00:46,556 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24, 24] total 24 [2019-01-31 15:00:46,556 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-01-31 15:00:46,557 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 47 [2019-01-31 15:00:46,557 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-01-31 15:00:46,557 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 25 states. [2019-01-31 15:00:46,609 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 47 edges. 47 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-01-31 15:00:46,609 INFO L459 AbstractCegarLoop]: Interpolant automaton has 25 states [2019-01-31 15:00:46,610 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2019-01-31 15:00:46,610 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=278, Invalid=322, Unknown=0, NotChecked=0, Total=600 [2019-01-31 15:00:46,610 INFO L87 Difference]: Start difference. First operand 48 states and 49 transitions. Second operand 25 states. [2019-01-31 15:00:48,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 15:00:48,346 INFO L93 Difference]: Finished difference Result 51 states and 52 transitions. [2019-01-31 15:00:48,346 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2019-01-31 15:00:48,346 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 47 [2019-01-31 15:00:48,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-31 15:00:48,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2019-01-31 15:00:48,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 52 transitions. [2019-01-31 15:00:48,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2019-01-31 15:00:48,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 52 transitions. [2019-01-31 15:00:48,348 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 47 states and 52 transitions. [2019-01-31 15:00:48,396 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 52 edges. 52 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-01-31 15:00:48,397 INFO L225 Difference]: With dead ends: 51 [2019-01-31 15:00:48,397 INFO L226 Difference]: Without dead ends: 49 [2019-01-31 15:00:48,398 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 71 SyntacticMatches, 44 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 924 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=828, Invalid=1334, Unknown=0, NotChecked=0, Total=2162 [2019-01-31 15:00:48,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2019-01-31 15:00:49,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2019-01-31 15:00:49,276 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-01-31 15:00:49,276 INFO L82 GeneralOperation]: Start isEquivalent. First operand 49 states. Second operand 49 states. [2019-01-31 15:00:49,276 INFO L74 IsIncluded]: Start isIncluded. First operand 49 states. Second operand 49 states. [2019-01-31 15:00:49,276 INFO L87 Difference]: Start difference. First operand 49 states. Second operand 49 states. [2019-01-31 15:00:49,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 15:00:49,277 INFO L93 Difference]: Finished difference Result 49 states and 50 transitions. [2019-01-31 15:00:49,277 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 50 transitions. [2019-01-31 15:00:49,277 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-31 15:00:49,278 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-01-31 15:00:49,278 INFO L74 IsIncluded]: Start isIncluded. First operand 49 states. Second operand 49 states. [2019-01-31 15:00:49,278 INFO L87 Difference]: Start difference. First operand 49 states. Second operand 49 states. [2019-01-31 15:00:49,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 15:00:49,279 INFO L93 Difference]: Finished difference Result 49 states and 50 transitions. [2019-01-31 15:00:49,279 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 50 transitions. [2019-01-31 15:00:49,280 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-31 15:00:49,280 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-01-31 15:00:49,280 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-01-31 15:00:49,280 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-01-31 15:00:49,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2019-01-31 15:00:49,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 50 transitions. [2019-01-31 15:00:49,281 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 50 transitions. Word has length 47 [2019-01-31 15:00:49,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-31 15:00:49,281 INFO L480 AbstractCegarLoop]: Abstraction has 49 states and 50 transitions. [2019-01-31 15:00:49,281 INFO L481 AbstractCegarLoop]: Interpolant automaton has 25 states. [2019-01-31 15:00:49,282 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 50 transitions. [2019-01-31 15:00:49,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2019-01-31 15:00:49,282 INFO L394 BasicCegarLoop]: Found error trace [2019-01-31 15:00:49,282 INFO L402 BasicCegarLoop]: trace histogram [22, 22, 1, 1, 1, 1] [2019-01-31 15:00:49,282 INFO L423 AbstractCegarLoop]: === Iteration 35 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2019-01-31 15:00:49,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-31 15:00:49,283 INFO L82 PathProgramCache]: Analyzing trace with hash -549920214, now seen corresponding path program 33 times [2019-01-31 15:00:49,283 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-01-31 15:00:49,283 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-31 15:00:49,283 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-01-31 15:00:49,284 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-31 15:00:49,284 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-01-31 15:00:49,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-31 15:00:50,924 INFO L273 TraceCheckUtils]: 0: Hoare triple {13024#true} havoc main_#res;havoc main_#t~nondet0, main_#t~nondet2, main_#t~post1, main_#t~post4, main_#t~post3, main_#t~post6, main_#t~post5, main_~MAX~6, main_~str1~6, main_~str2~6, main_~cont~6, main_~i~6, main_~j~6;main_~MAX~6 := (if main_#t~nondet0 % 4294967296 % 4294967296 <= 2147483647 then main_#t~nondet0 % 4294967296 % 4294967296 else main_#t~nondet0 % 4294967296 % 4294967296 - 4294967296);havoc main_#t~nondet0;havoc main_~str1~6;havoc main_~str2~6;havoc main_~cont~6;havoc main_~i~6;havoc main_~j~6;main_~cont~6 := 0;main_~i~6 := 0; {13026#(and (<= ULTIMATE.start_main_~i~6 0) (<= 0 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:00:50,925 INFO L273 TraceCheckUtils]: 1: Hoare triple {13026#(and (<= ULTIMATE.start_main_~i~6 0) (<= 0 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {13027#(and (<= ULTIMATE.start_main_~i~6 1) (<= 1 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:00:50,926 INFO L273 TraceCheckUtils]: 2: Hoare triple {13027#(and (<= ULTIMATE.start_main_~i~6 1) (<= 1 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {13028#(and (<= ULTIMATE.start_main_~i~6 2) (<= 2 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:00:50,927 INFO L273 TraceCheckUtils]: 3: Hoare triple {13028#(and (<= ULTIMATE.start_main_~i~6 2) (<= 2 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {13029#(and (<= 3 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 3))} is VALID [2019-01-31 15:00:50,928 INFO L273 TraceCheckUtils]: 4: Hoare triple {13029#(and (<= 3 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 3))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {13030#(and (<= ULTIMATE.start_main_~i~6 4) (<= 4 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:00:50,929 INFO L273 TraceCheckUtils]: 5: Hoare triple {13030#(and (<= ULTIMATE.start_main_~i~6 4) (<= 4 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {13031#(and (<= 5 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 5))} is VALID [2019-01-31 15:00:50,930 INFO L273 TraceCheckUtils]: 6: Hoare triple {13031#(and (<= 5 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 5))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {13032#(and (<= ULTIMATE.start_main_~i~6 6) (<= 6 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:00:50,931 INFO L273 TraceCheckUtils]: 7: Hoare triple {13032#(and (<= ULTIMATE.start_main_~i~6 6) (<= 6 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {13033#(and (<= 7 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 7))} is VALID [2019-01-31 15:00:50,932 INFO L273 TraceCheckUtils]: 8: Hoare triple {13033#(and (<= 7 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 7))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {13034#(and (<= ULTIMATE.start_main_~i~6 8) (<= 8 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:00:50,933 INFO L273 TraceCheckUtils]: 9: Hoare triple {13034#(and (<= ULTIMATE.start_main_~i~6 8) (<= 8 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {13035#(and (<= ULTIMATE.start_main_~i~6 9) (<= 9 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:00:50,934 INFO L273 TraceCheckUtils]: 10: Hoare triple {13035#(and (<= ULTIMATE.start_main_~i~6 9) (<= 9 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {13036#(and (<= ULTIMATE.start_main_~i~6 10) (<= 10 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:00:50,935 INFO L273 TraceCheckUtils]: 11: Hoare triple {13036#(and (<= ULTIMATE.start_main_~i~6 10) (<= 10 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {13037#(and (<= 11 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 11))} is VALID [2019-01-31 15:00:50,936 INFO L273 TraceCheckUtils]: 12: Hoare triple {13037#(and (<= 11 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 11))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {13038#(and (<= ULTIMATE.start_main_~i~6 12) (<= 12 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:00:50,937 INFO L273 TraceCheckUtils]: 13: Hoare triple {13038#(and (<= ULTIMATE.start_main_~i~6 12) (<= 12 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {13039#(and (<= ULTIMATE.start_main_~i~6 13) (<= 13 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:00:50,937 INFO L273 TraceCheckUtils]: 14: Hoare triple {13039#(and (<= ULTIMATE.start_main_~i~6 13) (<= 13 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {13040#(and (<= ULTIMATE.start_main_~i~6 14) (<= 14 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:00:50,938 INFO L273 TraceCheckUtils]: 15: Hoare triple {13040#(and (<= ULTIMATE.start_main_~i~6 14) (<= 14 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {13041#(and (<= 15 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 15))} is VALID [2019-01-31 15:00:50,939 INFO L273 TraceCheckUtils]: 16: Hoare triple {13041#(and (<= 15 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 15))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {13042#(and (<= 16 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 16))} is VALID [2019-01-31 15:00:50,940 INFO L273 TraceCheckUtils]: 17: Hoare triple {13042#(and (<= 16 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 16))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {13043#(and (<= ULTIMATE.start_main_~i~6 17) (<= 17 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:00:50,941 INFO L273 TraceCheckUtils]: 18: Hoare triple {13043#(and (<= ULTIMATE.start_main_~i~6 17) (<= 17 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {13044#(and (<= ULTIMATE.start_main_~i~6 18) (<= 18 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:00:50,942 INFO L273 TraceCheckUtils]: 19: Hoare triple {13044#(and (<= ULTIMATE.start_main_~i~6 18) (<= 18 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {13045#(and (<= ULTIMATE.start_main_~i~6 19) (<= 19 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:00:50,943 INFO L273 TraceCheckUtils]: 20: Hoare triple {13045#(and (<= ULTIMATE.start_main_~i~6 19) (<= 19 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {13046#(and (<= ULTIMATE.start_main_~i~6 20) (<= 20 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:00:50,944 INFO L273 TraceCheckUtils]: 21: Hoare triple {13046#(and (<= ULTIMATE.start_main_~i~6 20) (<= 20 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {13047#(or (not (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 1))) (and (<= ULTIMATE.start_main_~i~6 21) (<= 21 ULTIMATE.start_main_~i~6)))} is VALID [2019-01-31 15:00:50,945 INFO L273 TraceCheckUtils]: 22: Hoare triple {13047#(or (not (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 1))) (and (<= ULTIMATE.start_main_~i~6 21) (<= 21 ULTIMATE.start_main_~i~6)))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {13048#(or (= 22 ULTIMATE.start_main_~MAX~6) (<= (+ ULTIMATE.start_main_~i~6 1) ULTIMATE.start_main_~MAX~6))} is VALID [2019-01-31 15:00:50,946 INFO L273 TraceCheckUtils]: 23: Hoare triple {13048#(or (= 22 ULTIMATE.start_main_~MAX~6) (<= (+ ULTIMATE.start_main_~i~6 1) ULTIMATE.start_main_~MAX~6))} assume !(main_~i~6 < main_~MAX~6);main_~str1~6 := main_~str1~6[main_~MAX~6 - 1 := 0];main_~j~6 := 0;main_~i~6 := main_~MAX~6 - 1; {13049#(= (+ ULTIMATE.start_main_~j~6 22) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:00:50,947 INFO L273 TraceCheckUtils]: 24: Hoare triple {13049#(= (+ ULTIMATE.start_main_~j~6 22) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {13050#(= (+ ULTIMATE.start_main_~j~6 21) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:00:50,948 INFO L273 TraceCheckUtils]: 25: Hoare triple {13050#(= (+ ULTIMATE.start_main_~j~6 21) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {13051#(= (+ ULTIMATE.start_main_~j~6 20) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:00:50,949 INFO L273 TraceCheckUtils]: 26: Hoare triple {13051#(= (+ ULTIMATE.start_main_~j~6 20) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {13052#(= (+ ULTIMATE.start_main_~j~6 19) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:00:50,950 INFO L273 TraceCheckUtils]: 27: Hoare triple {13052#(= (+ ULTIMATE.start_main_~j~6 19) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {13053#(= (+ ULTIMATE.start_main_~j~6 18) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:00:50,951 INFO L273 TraceCheckUtils]: 28: Hoare triple {13053#(= (+ ULTIMATE.start_main_~j~6 18) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {13054#(= (+ ULTIMATE.start_main_~j~6 17) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:00:50,952 INFO L273 TraceCheckUtils]: 29: Hoare triple {13054#(= (+ ULTIMATE.start_main_~j~6 17) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {13055#(= (+ ULTIMATE.start_main_~j~6 16) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:00:50,953 INFO L273 TraceCheckUtils]: 30: Hoare triple {13055#(= (+ ULTIMATE.start_main_~j~6 16) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {13056#(= (+ ULTIMATE.start_main_~j~6 15) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:00:50,954 INFO L273 TraceCheckUtils]: 31: Hoare triple {13056#(= (+ ULTIMATE.start_main_~j~6 15) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {13057#(= (+ ULTIMATE.start_main_~j~6 14) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:00:50,955 INFO L273 TraceCheckUtils]: 32: Hoare triple {13057#(= (+ ULTIMATE.start_main_~j~6 14) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {13058#(= (+ ULTIMATE.start_main_~j~6 13) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:00:50,956 INFO L273 TraceCheckUtils]: 33: Hoare triple {13058#(= (+ ULTIMATE.start_main_~j~6 13) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {13059#(= (+ ULTIMATE.start_main_~j~6 12) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:00:50,957 INFO L273 TraceCheckUtils]: 34: Hoare triple {13059#(= (+ ULTIMATE.start_main_~j~6 12) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {13060#(= (+ ULTIMATE.start_main_~j~6 11) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:00:50,958 INFO L273 TraceCheckUtils]: 35: Hoare triple {13060#(= (+ ULTIMATE.start_main_~j~6 11) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {13061#(= (+ ULTIMATE.start_main_~j~6 10) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:00:50,959 INFO L273 TraceCheckUtils]: 36: Hoare triple {13061#(= (+ ULTIMATE.start_main_~j~6 10) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {13062#(= (+ ULTIMATE.start_main_~j~6 9) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:00:50,960 INFO L273 TraceCheckUtils]: 37: Hoare triple {13062#(= (+ ULTIMATE.start_main_~j~6 9) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {13063#(= (+ ULTIMATE.start_main_~j~6 8) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:00:50,961 INFO L273 TraceCheckUtils]: 38: Hoare triple {13063#(= (+ ULTIMATE.start_main_~j~6 8) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {13064#(= (+ ULTIMATE.start_main_~j~6 7) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:00:50,962 INFO L273 TraceCheckUtils]: 39: Hoare triple {13064#(= (+ ULTIMATE.start_main_~j~6 7) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {13065#(= (+ ULTIMATE.start_main_~j~6 6) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:00:50,963 INFO L273 TraceCheckUtils]: 40: Hoare triple {13065#(= (+ ULTIMATE.start_main_~j~6 6) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {13066#(= (+ ULTIMATE.start_main_~j~6 5) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:00:50,964 INFO L273 TraceCheckUtils]: 41: Hoare triple {13066#(= (+ ULTIMATE.start_main_~j~6 5) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {13067#(= (+ ULTIMATE.start_main_~j~6 4) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:00:50,964 INFO L273 TraceCheckUtils]: 42: Hoare triple {13067#(= (+ ULTIMATE.start_main_~j~6 4) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {13068#(= (+ ULTIMATE.start_main_~j~6 3) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:00:50,965 INFO L273 TraceCheckUtils]: 43: Hoare triple {13068#(= (+ ULTIMATE.start_main_~j~6 3) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {13069#(= (+ ULTIMATE.start_main_~j~6 2) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:00:50,966 INFO L273 TraceCheckUtils]: 44: Hoare triple {13069#(= (+ ULTIMATE.start_main_~j~6 2) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {13070#(= (+ ULTIMATE.start_main_~j~6 1) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:00:50,967 INFO L273 TraceCheckUtils]: 45: Hoare triple {13070#(= (+ ULTIMATE.start_main_~j~6 1) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {13071#(= (select ULTIMATE.start_main_~str1~6 0) (select ULTIMATE.start_main_~str2~6 (+ ULTIMATE.start_main_~MAX~6 (- 1))))} is VALID [2019-01-31 15:00:50,968 INFO L273 TraceCheckUtils]: 46: Hoare triple {13071#(= (select ULTIMATE.start_main_~str1~6 0) (select ULTIMATE.start_main_~str2~6 (+ ULTIMATE.start_main_~MAX~6 (- 1))))} assume !(main_~i~6 >= 0);main_~j~6 := main_~MAX~6 - 1;main_~i~6 := 0;assume !!(main_~i~6 < main_~MAX~6);__VERIFIER_assert_#in~cond := (if main_~str1~6[main_~i~6] == main_~str2~6[main_~j~6] then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond;assume __VERIFIER_assert_~cond == 0;assume !false; {13025#false} is VALID [2019-01-31 15:00:50,969 INFO L273 TraceCheckUtils]: 47: Hoare triple {13025#false} assume !false; {13025#false} is VALID [2019-01-31 15:00:50,973 INFO L134 CoverageAnalysis]: Checked inductivity of 506 backedges. 0 proven. 506 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-31 15:00:50,973 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-31 15:00:50,973 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-01-31 15:00:50,973 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-01-31 15:00:50,974 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-01-31 15:00:50,974 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-31 15:00:50,974 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 34 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 34 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-01-31 15:00:50,984 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2019-01-31 15:00:50,984 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder TERMS_WITH_SMALL_CONSTANTS_FIRST (IT: FPandBP) [2019-01-31 15:00:51,033 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-01-31 15:00:51,033 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-01-31 15:00:51,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-31 15:00:51,065 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-31 15:00:52,593 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2019-01-31 15:00:52,598 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-01-31 15:00:52,604 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-31 15:00:52,604 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:17, output treesize:16 [2019-01-31 15:00:52,607 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-01-31 15:00:52,607 WARN L398 uantifierElimination]: Input elimination task: ∃ [v_ULTIMATE.start_main_~str2~6_380]. (and (= (store v_ULTIMATE.start_main_~str2~6_380 21 (select ULTIMATE.start_main_~str1~6 0)) ULTIMATE.start_main_~str2~6) (<= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 23)) (<= 22 ULTIMATE.start_main_~MAX~6)) [2019-01-31 15:00:52,607 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (and (<= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 23)) (= (select ULTIMATE.start_main_~str2~6 21) (select ULTIMATE.start_main_~str1~6 0)) (<= 22 ULTIMATE.start_main_~MAX~6)) [2019-01-31 15:00:52,715 INFO L273 TraceCheckUtils]: 0: Hoare triple {13024#true} havoc main_#res;havoc main_#t~nondet0, main_#t~nondet2, main_#t~post1, main_#t~post4, main_#t~post3, main_#t~post6, main_#t~post5, main_~MAX~6, main_~str1~6, main_~str2~6, main_~cont~6, main_~i~6, main_~j~6;main_~MAX~6 := (if main_#t~nondet0 % 4294967296 % 4294967296 <= 2147483647 then main_#t~nondet0 % 4294967296 % 4294967296 else main_#t~nondet0 % 4294967296 % 4294967296 - 4294967296);havoc main_#t~nondet0;havoc main_~str1~6;havoc main_~str2~6;havoc main_~cont~6;havoc main_~i~6;havoc main_~j~6;main_~cont~6 := 0;main_~i~6 := 0; {13024#true} is VALID [2019-01-31 15:00:52,716 INFO L273 TraceCheckUtils]: 1: Hoare triple {13024#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {13024#true} is VALID [2019-01-31 15:00:52,716 INFO L273 TraceCheckUtils]: 2: Hoare triple {13024#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {13024#true} is VALID [2019-01-31 15:00:52,716 INFO L273 TraceCheckUtils]: 3: Hoare triple {13024#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {13024#true} is VALID [2019-01-31 15:00:52,716 INFO L273 TraceCheckUtils]: 4: Hoare triple {13024#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {13024#true} is VALID [2019-01-31 15:00:52,716 INFO L273 TraceCheckUtils]: 5: Hoare triple {13024#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {13024#true} is VALID [2019-01-31 15:00:52,717 INFO L273 TraceCheckUtils]: 6: Hoare triple {13024#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {13024#true} is VALID [2019-01-31 15:00:52,717 INFO L273 TraceCheckUtils]: 7: Hoare triple {13024#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {13024#true} is VALID [2019-01-31 15:00:52,717 INFO L273 TraceCheckUtils]: 8: Hoare triple {13024#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {13024#true} is VALID [2019-01-31 15:00:52,717 INFO L273 TraceCheckUtils]: 9: Hoare triple {13024#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {13024#true} is VALID [2019-01-31 15:00:52,717 INFO L273 TraceCheckUtils]: 10: Hoare triple {13024#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {13024#true} is VALID [2019-01-31 15:00:52,718 INFO L273 TraceCheckUtils]: 11: Hoare triple {13024#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {13024#true} is VALID [2019-01-31 15:00:52,718 INFO L273 TraceCheckUtils]: 12: Hoare triple {13024#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {13024#true} is VALID [2019-01-31 15:00:52,718 INFO L273 TraceCheckUtils]: 13: Hoare triple {13024#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {13024#true} is VALID [2019-01-31 15:00:52,718 INFO L273 TraceCheckUtils]: 14: Hoare triple {13024#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {13024#true} is VALID [2019-01-31 15:00:52,718 INFO L273 TraceCheckUtils]: 15: Hoare triple {13024#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {13024#true} is VALID [2019-01-31 15:00:52,718 INFO L273 TraceCheckUtils]: 16: Hoare triple {13024#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {13024#true} is VALID [2019-01-31 15:00:52,718 INFO L273 TraceCheckUtils]: 17: Hoare triple {13024#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {13024#true} is VALID [2019-01-31 15:00:52,718 INFO L273 TraceCheckUtils]: 18: Hoare triple {13024#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {13024#true} is VALID [2019-01-31 15:00:52,719 INFO L273 TraceCheckUtils]: 19: Hoare triple {13024#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {13024#true} is VALID [2019-01-31 15:00:52,719 INFO L273 TraceCheckUtils]: 20: Hoare triple {13024#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {13024#true} is VALID [2019-01-31 15:00:52,719 INFO L273 TraceCheckUtils]: 21: Hoare triple {13024#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {13024#true} is VALID [2019-01-31 15:00:52,719 INFO L273 TraceCheckUtils]: 22: Hoare triple {13024#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {13024#true} is VALID [2019-01-31 15:00:52,719 INFO L273 TraceCheckUtils]: 23: Hoare triple {13024#true} assume !(main_~i~6 < main_~MAX~6);main_~str1~6 := main_~str1~6[main_~MAX~6 - 1 := 0];main_~j~6 := 0;main_~i~6 := main_~MAX~6 - 1; {13144#(and (= ULTIMATE.start_main_~j~6 0) (= (+ ULTIMATE.start_main_~i~6 1) ULTIMATE.start_main_~MAX~6))} is VALID [2019-01-31 15:00:52,720 INFO L273 TraceCheckUtils]: 24: Hoare triple {13144#(and (= ULTIMATE.start_main_~j~6 0) (= (+ ULTIMATE.start_main_~i~6 1) ULTIMATE.start_main_~MAX~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {13148#(and (= ULTIMATE.start_main_~j~6 1) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 2)))} is VALID [2019-01-31 15:00:52,721 INFO L273 TraceCheckUtils]: 25: Hoare triple {13148#(and (= ULTIMATE.start_main_~j~6 1) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 2)))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {13152#(and (= (+ ULTIMATE.start_main_~i~6 3) ULTIMATE.start_main_~MAX~6) (= ULTIMATE.start_main_~j~6 2))} is VALID [2019-01-31 15:00:52,721 INFO L273 TraceCheckUtils]: 26: Hoare triple {13152#(and (= (+ ULTIMATE.start_main_~i~6 3) ULTIMATE.start_main_~MAX~6) (= ULTIMATE.start_main_~j~6 2))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {13156#(and (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 4)) (= ULTIMATE.start_main_~j~6 3))} is VALID [2019-01-31 15:00:52,722 INFO L273 TraceCheckUtils]: 27: Hoare triple {13156#(and (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 4)) (= ULTIMATE.start_main_~j~6 3))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {13160#(and (= ULTIMATE.start_main_~j~6 4) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 5)))} is VALID [2019-01-31 15:00:52,722 INFO L273 TraceCheckUtils]: 28: Hoare triple {13160#(and (= ULTIMATE.start_main_~j~6 4) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 5)))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {13164#(and (= ULTIMATE.start_main_~j~6 5) (= (+ ULTIMATE.start_main_~i~6 6) ULTIMATE.start_main_~MAX~6))} is VALID [2019-01-31 15:00:52,723 INFO L273 TraceCheckUtils]: 29: Hoare triple {13164#(and (= ULTIMATE.start_main_~j~6 5) (= (+ ULTIMATE.start_main_~i~6 6) ULTIMATE.start_main_~MAX~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {13168#(and (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 7)) (= ULTIMATE.start_main_~j~6 6))} is VALID [2019-01-31 15:00:52,724 INFO L273 TraceCheckUtils]: 30: Hoare triple {13168#(and (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 7)) (= ULTIMATE.start_main_~j~6 6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {13172#(and (= ULTIMATE.start_main_~j~6 7) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 8)))} is VALID [2019-01-31 15:00:52,725 INFO L273 TraceCheckUtils]: 31: Hoare triple {13172#(and (= ULTIMATE.start_main_~j~6 7) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 8)))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {13176#(and (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 9)) (= ULTIMATE.start_main_~j~6 8))} is VALID [2019-01-31 15:00:52,726 INFO L273 TraceCheckUtils]: 32: Hoare triple {13176#(and (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 9)) (= ULTIMATE.start_main_~j~6 8))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {13180#(and (= ULTIMATE.start_main_~j~6 9) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 10)))} is VALID [2019-01-31 15:00:52,727 INFO L273 TraceCheckUtils]: 33: Hoare triple {13180#(and (= ULTIMATE.start_main_~j~6 9) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 10)))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {13184#(and (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 11)) (= ULTIMATE.start_main_~j~6 10))} is VALID [2019-01-31 15:00:52,728 INFO L273 TraceCheckUtils]: 34: Hoare triple {13184#(and (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 11)) (= ULTIMATE.start_main_~j~6 10))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {13188#(and (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 12)) (= ULTIMATE.start_main_~j~6 11))} is VALID [2019-01-31 15:00:52,729 INFO L273 TraceCheckUtils]: 35: Hoare triple {13188#(and (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 12)) (= ULTIMATE.start_main_~j~6 11))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {13192#(and (= ULTIMATE.start_main_~j~6 12) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 13)))} is VALID [2019-01-31 15:00:52,730 INFO L273 TraceCheckUtils]: 36: Hoare triple {13192#(and (= ULTIMATE.start_main_~j~6 12) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 13)))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {13196#(and (= ULTIMATE.start_main_~j~6 13) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 14)))} is VALID [2019-01-31 15:00:52,731 INFO L273 TraceCheckUtils]: 37: Hoare triple {13196#(and (= ULTIMATE.start_main_~j~6 13) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 14)))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {13200#(and (= ULTIMATE.start_main_~j~6 14) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 15)))} is VALID [2019-01-31 15:00:52,732 INFO L273 TraceCheckUtils]: 38: Hoare triple {13200#(and (= ULTIMATE.start_main_~j~6 14) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 15)))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {13204#(and (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 16)) (= ULTIMATE.start_main_~j~6 15))} is VALID [2019-01-31 15:00:52,733 INFO L273 TraceCheckUtils]: 39: Hoare triple {13204#(and (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 16)) (= ULTIMATE.start_main_~j~6 15))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {13208#(and (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 17)) (= ULTIMATE.start_main_~j~6 16))} is VALID [2019-01-31 15:00:52,734 INFO L273 TraceCheckUtils]: 40: Hoare triple {13208#(and (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 17)) (= ULTIMATE.start_main_~j~6 16))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {13212#(and (= ULTIMATE.start_main_~j~6 17) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 18)))} is VALID [2019-01-31 15:00:52,735 INFO L273 TraceCheckUtils]: 41: Hoare triple {13212#(and (= ULTIMATE.start_main_~j~6 17) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 18)))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {13216#(and (= ULTIMATE.start_main_~j~6 18) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 19)))} is VALID [2019-01-31 15:00:52,736 INFO L273 TraceCheckUtils]: 42: Hoare triple {13216#(and (= ULTIMATE.start_main_~j~6 18) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 19)))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {13220#(and (= ULTIMATE.start_main_~j~6 19) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 20)))} is VALID [2019-01-31 15:00:52,737 INFO L273 TraceCheckUtils]: 43: Hoare triple {13220#(and (= ULTIMATE.start_main_~j~6 19) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 20)))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {13224#(and (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 21)) (= ULTIMATE.start_main_~j~6 20))} is VALID [2019-01-31 15:00:52,738 INFO L273 TraceCheckUtils]: 44: Hoare triple {13224#(and (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 21)) (= ULTIMATE.start_main_~j~6 20))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {13228#(and (= ULTIMATE.start_main_~j~6 21) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 22)))} is VALID [2019-01-31 15:00:52,740 INFO L273 TraceCheckUtils]: 45: Hoare triple {13228#(and (= ULTIMATE.start_main_~j~6 21) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 22)))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {13232#(and (<= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 23)) (= (select ULTIMATE.start_main_~str2~6 21) (select ULTIMATE.start_main_~str1~6 0)) (<= 22 ULTIMATE.start_main_~MAX~6))} is VALID [2019-01-31 15:00:52,741 INFO L273 TraceCheckUtils]: 46: Hoare triple {13232#(and (<= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 23)) (= (select ULTIMATE.start_main_~str2~6 21) (select ULTIMATE.start_main_~str1~6 0)) (<= 22 ULTIMATE.start_main_~MAX~6))} assume !(main_~i~6 >= 0);main_~j~6 := main_~MAX~6 - 1;main_~i~6 := 0;assume !!(main_~i~6 < main_~MAX~6);__VERIFIER_assert_#in~cond := (if main_~str1~6[main_~i~6] == main_~str2~6[main_~j~6] then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond;assume __VERIFIER_assert_~cond == 0;assume !false; {13025#false} is VALID [2019-01-31 15:00:52,741 INFO L273 TraceCheckUtils]: 47: Hoare triple {13025#false} assume !false; {13025#false} is VALID [2019-01-31 15:00:52,745 INFO L134 CoverageAnalysis]: Checked inductivity of 506 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 253 trivial. 0 not checked. [2019-01-31 15:00:52,745 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2019-01-31 15:00:52,905 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 5 [2019-01-31 15:00:52,914 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-01-31 15:00:52,934 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-31 15:00:52,934 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:22, output treesize:12 [2019-01-31 15:00:52,936 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-01-31 15:00:52,936 WARN L398 uantifierElimination]: Input elimination task: ∀ [ULTIMATE.start_main_~str2~6, ULTIMATE.start_main_~str1~6]. (or (not (<= 0 ULTIMATE.start_main_~i~6)) (let ((.cse0 (select ULTIMATE.start_main_~str1~6 0))) (= .cse0 (select (store ULTIMATE.start_main_~str2~6 ULTIMATE.start_main_~j~6 .cse0) (+ ULTIMATE.start_main_~MAX~6 (- 1))))) (< 0 ULTIMATE.start_main_~i~6)) [2019-01-31 15:00:52,937 WARN L399 uantifierElimination]: ElimStorePlain result: ∀ []. (or (< ULTIMATE.start_main_~i~6 0) (< 0 ULTIMATE.start_main_~i~6) (= (+ ULTIMATE.start_main_~j~6 1) ULTIMATE.start_main_~MAX~6)) [2019-01-31 15:00:54,781 INFO L273 TraceCheckUtils]: 47: Hoare triple {13025#false} assume !false; {13025#false} is VALID [2019-01-31 15:00:54,783 INFO L273 TraceCheckUtils]: 46: Hoare triple {13242#(or (= (select ULTIMATE.start_main_~str1~6 0) (select ULTIMATE.start_main_~str2~6 (+ ULTIMATE.start_main_~MAX~6 (- 1)))) (<= 0 ULTIMATE.start_main_~i~6))} assume !(main_~i~6 >= 0);main_~j~6 := main_~MAX~6 - 1;main_~i~6 := 0;assume !!(main_~i~6 < main_~MAX~6);__VERIFIER_assert_#in~cond := (if main_~str1~6[main_~i~6] == main_~str2~6[main_~j~6] then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond;assume __VERIFIER_assert_~cond == 0;assume !false; {13025#false} is VALID [2019-01-31 15:00:54,784 INFO L273 TraceCheckUtils]: 45: Hoare triple {13246#(or (< ULTIMATE.start_main_~i~6 0) (< 0 ULTIMATE.start_main_~i~6) (= (+ ULTIMATE.start_main_~j~6 1) ULTIMATE.start_main_~MAX~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {13242#(or (= (select ULTIMATE.start_main_~str1~6 0) (select ULTIMATE.start_main_~str2~6 (+ ULTIMATE.start_main_~MAX~6 (- 1)))) (<= 0 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:00:54,785 INFO L273 TraceCheckUtils]: 44: Hoare triple {13250#(or (= (+ ULTIMATE.start_main_~j~6 2) ULTIMATE.start_main_~MAX~6) (< 1 ULTIMATE.start_main_~i~6) (< ULTIMATE.start_main_~i~6 1))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {13246#(or (< ULTIMATE.start_main_~i~6 0) (< 0 ULTIMATE.start_main_~i~6) (= (+ ULTIMATE.start_main_~j~6 1) ULTIMATE.start_main_~MAX~6))} is VALID [2019-01-31 15:00:54,786 INFO L273 TraceCheckUtils]: 43: Hoare triple {13254#(or (= (+ ULTIMATE.start_main_~j~6 3) ULTIMATE.start_main_~MAX~6) (< ULTIMATE.start_main_~i~6 2) (< 2 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {13250#(or (= (+ ULTIMATE.start_main_~j~6 2) ULTIMATE.start_main_~MAX~6) (< 1 ULTIMATE.start_main_~i~6) (< ULTIMATE.start_main_~i~6 1))} is VALID [2019-01-31 15:00:54,787 INFO L273 TraceCheckUtils]: 42: Hoare triple {13258#(or (= (+ ULTIMATE.start_main_~j~6 4) ULTIMATE.start_main_~MAX~6) (< ULTIMATE.start_main_~i~6 3) (< 3 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {13254#(or (= (+ ULTIMATE.start_main_~j~6 3) ULTIMATE.start_main_~MAX~6) (< ULTIMATE.start_main_~i~6 2) (< 2 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:00:54,788 INFO L273 TraceCheckUtils]: 41: Hoare triple {13262#(or (= (+ ULTIMATE.start_main_~j~6 5) ULTIMATE.start_main_~MAX~6) (< 4 ULTIMATE.start_main_~i~6) (< ULTIMATE.start_main_~i~6 4))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {13258#(or (= (+ ULTIMATE.start_main_~j~6 4) ULTIMATE.start_main_~MAX~6) (< ULTIMATE.start_main_~i~6 3) (< 3 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:00:54,789 INFO L273 TraceCheckUtils]: 40: Hoare triple {13266#(or (< ULTIMATE.start_main_~i~6 5) (< 5 ULTIMATE.start_main_~i~6) (= (+ ULTIMATE.start_main_~j~6 6) ULTIMATE.start_main_~MAX~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {13262#(or (= (+ ULTIMATE.start_main_~j~6 5) ULTIMATE.start_main_~MAX~6) (< 4 ULTIMATE.start_main_~i~6) (< ULTIMATE.start_main_~i~6 4))} is VALID [2019-01-31 15:00:54,790 INFO L273 TraceCheckUtils]: 39: Hoare triple {13270#(or (< ULTIMATE.start_main_~i~6 6) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 7)) (< 6 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {13266#(or (< ULTIMATE.start_main_~i~6 5) (< 5 ULTIMATE.start_main_~i~6) (= (+ ULTIMATE.start_main_~j~6 6) ULTIMATE.start_main_~MAX~6))} is VALID [2019-01-31 15:00:54,792 INFO L273 TraceCheckUtils]: 38: Hoare triple {13274#(or (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 8)) (< ULTIMATE.start_main_~i~6 7) (< 7 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {13270#(or (< ULTIMATE.start_main_~i~6 6) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 7)) (< 6 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:00:54,793 INFO L273 TraceCheckUtils]: 37: Hoare triple {13278#(or (< 8 ULTIMATE.start_main_~i~6) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 9)) (< ULTIMATE.start_main_~i~6 8))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {13274#(or (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 8)) (< ULTIMATE.start_main_~i~6 7) (< 7 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:00:54,794 INFO L273 TraceCheckUtils]: 36: Hoare triple {13282#(or (< ULTIMATE.start_main_~i~6 9) (= (+ ULTIMATE.start_main_~j~6 10) ULTIMATE.start_main_~MAX~6) (< 9 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {13278#(or (< 8 ULTIMATE.start_main_~i~6) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 9)) (< ULTIMATE.start_main_~i~6 8))} is VALID [2019-01-31 15:00:54,795 INFO L273 TraceCheckUtils]: 35: Hoare triple {13286#(or (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 11)) (< 10 ULTIMATE.start_main_~i~6) (< ULTIMATE.start_main_~i~6 10))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {13282#(or (< ULTIMATE.start_main_~i~6 9) (= (+ ULTIMATE.start_main_~j~6 10) ULTIMATE.start_main_~MAX~6) (< 9 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:00:54,796 INFO L273 TraceCheckUtils]: 34: Hoare triple {13290#(or (< ULTIMATE.start_main_~i~6 11) (= (+ ULTIMATE.start_main_~j~6 12) ULTIMATE.start_main_~MAX~6) (< 11 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {13286#(or (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 11)) (< 10 ULTIMATE.start_main_~i~6) (< ULTIMATE.start_main_~i~6 10))} is VALID [2019-01-31 15:00:54,797 INFO L273 TraceCheckUtils]: 33: Hoare triple {13294#(or (< 12 ULTIMATE.start_main_~i~6) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 13)) (< ULTIMATE.start_main_~i~6 12))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {13290#(or (< ULTIMATE.start_main_~i~6 11) (= (+ ULTIMATE.start_main_~j~6 12) ULTIMATE.start_main_~MAX~6) (< 11 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:00:54,798 INFO L273 TraceCheckUtils]: 32: Hoare triple {13298#(or (< ULTIMATE.start_main_~i~6 13) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 14)) (< 13 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {13294#(or (< 12 ULTIMATE.start_main_~i~6) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 13)) (< ULTIMATE.start_main_~i~6 12))} is VALID [2019-01-31 15:00:54,799 INFO L273 TraceCheckUtils]: 31: Hoare triple {13302#(or (< 14 ULTIMATE.start_main_~i~6) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 15)) (< ULTIMATE.start_main_~i~6 14))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {13298#(or (< ULTIMATE.start_main_~i~6 13) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 14)) (< 13 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:00:54,800 INFO L273 TraceCheckUtils]: 30: Hoare triple {13306#(or (< 15 ULTIMATE.start_main_~i~6) (< ULTIMATE.start_main_~i~6 15) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 16)))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {13302#(or (< 14 ULTIMATE.start_main_~i~6) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 15)) (< ULTIMATE.start_main_~i~6 14))} is VALID [2019-01-31 15:00:54,801 INFO L273 TraceCheckUtils]: 29: Hoare triple {13310#(or (< ULTIMATE.start_main_~i~6 16) (< 16 ULTIMATE.start_main_~i~6) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 17)))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {13306#(or (< 15 ULTIMATE.start_main_~i~6) (< ULTIMATE.start_main_~i~6 15) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 16)))} is VALID [2019-01-31 15:00:54,802 INFO L273 TraceCheckUtils]: 28: Hoare triple {13314#(or (< ULTIMATE.start_main_~i~6 17) (< 17 ULTIMATE.start_main_~i~6) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 18)))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {13310#(or (< ULTIMATE.start_main_~i~6 16) (< 16 ULTIMATE.start_main_~i~6) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 17)))} is VALID [2019-01-31 15:00:54,804 INFO L273 TraceCheckUtils]: 27: Hoare triple {13318#(or (< ULTIMATE.start_main_~i~6 18) (< 18 ULTIMATE.start_main_~i~6) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 19)))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {13314#(or (< ULTIMATE.start_main_~i~6 17) (< 17 ULTIMATE.start_main_~i~6) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 18)))} is VALID [2019-01-31 15:00:54,805 INFO L273 TraceCheckUtils]: 26: Hoare triple {13322#(or (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 20)) (< 19 ULTIMATE.start_main_~i~6) (< ULTIMATE.start_main_~i~6 19))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {13318#(or (< ULTIMATE.start_main_~i~6 18) (< 18 ULTIMATE.start_main_~i~6) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 19)))} is VALID [2019-01-31 15:00:54,806 INFO L273 TraceCheckUtils]: 25: Hoare triple {13326#(or (< ULTIMATE.start_main_~i~6 20) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 21)) (< 20 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {13322#(or (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 20)) (< 19 ULTIMATE.start_main_~i~6) (< ULTIMATE.start_main_~i~6 19))} is VALID [2019-01-31 15:00:54,807 INFO L273 TraceCheckUtils]: 24: Hoare triple {13330#(or (< 21 ULTIMATE.start_main_~i~6) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 22)) (< ULTIMATE.start_main_~i~6 21))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {13326#(or (< ULTIMATE.start_main_~i~6 20) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 21)) (< 20 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:00:54,808 INFO L273 TraceCheckUtils]: 23: Hoare triple {13024#true} assume !(main_~i~6 < main_~MAX~6);main_~str1~6 := main_~str1~6[main_~MAX~6 - 1 := 0];main_~j~6 := 0;main_~i~6 := main_~MAX~6 - 1; {13330#(or (< 21 ULTIMATE.start_main_~i~6) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 22)) (< ULTIMATE.start_main_~i~6 21))} is VALID [2019-01-31 15:00:54,808 INFO L273 TraceCheckUtils]: 22: Hoare triple {13024#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {13024#true} is VALID [2019-01-31 15:00:54,808 INFO L273 TraceCheckUtils]: 21: Hoare triple {13024#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {13024#true} is VALID [2019-01-31 15:00:54,808 INFO L273 TraceCheckUtils]: 20: Hoare triple {13024#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {13024#true} is VALID [2019-01-31 15:00:54,809 INFO L273 TraceCheckUtils]: 19: Hoare triple {13024#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {13024#true} is VALID [2019-01-31 15:00:54,809 INFO L273 TraceCheckUtils]: 18: Hoare triple {13024#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {13024#true} is VALID [2019-01-31 15:00:54,809 INFO L273 TraceCheckUtils]: 17: Hoare triple {13024#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {13024#true} is VALID [2019-01-31 15:00:54,809 INFO L273 TraceCheckUtils]: 16: Hoare triple {13024#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {13024#true} is VALID [2019-01-31 15:00:54,809 INFO L273 TraceCheckUtils]: 15: Hoare triple {13024#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {13024#true} is VALID [2019-01-31 15:00:54,809 INFO L273 TraceCheckUtils]: 14: Hoare triple {13024#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {13024#true} is VALID [2019-01-31 15:00:54,810 INFO L273 TraceCheckUtils]: 13: Hoare triple {13024#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {13024#true} is VALID [2019-01-31 15:00:54,810 INFO L273 TraceCheckUtils]: 12: Hoare triple {13024#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {13024#true} is VALID [2019-01-31 15:00:54,810 INFO L273 TraceCheckUtils]: 11: Hoare triple {13024#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {13024#true} is VALID [2019-01-31 15:00:54,810 INFO L273 TraceCheckUtils]: 10: Hoare triple {13024#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {13024#true} is VALID [2019-01-31 15:00:54,810 INFO L273 TraceCheckUtils]: 9: Hoare triple {13024#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {13024#true} is VALID [2019-01-31 15:00:54,811 INFO L273 TraceCheckUtils]: 8: Hoare triple {13024#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {13024#true} is VALID [2019-01-31 15:00:54,811 INFO L273 TraceCheckUtils]: 7: Hoare triple {13024#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {13024#true} is VALID [2019-01-31 15:00:54,811 INFO L273 TraceCheckUtils]: 6: Hoare triple {13024#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {13024#true} is VALID [2019-01-31 15:00:54,811 INFO L273 TraceCheckUtils]: 5: Hoare triple {13024#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {13024#true} is VALID [2019-01-31 15:00:54,811 INFO L273 TraceCheckUtils]: 4: Hoare triple {13024#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {13024#true} is VALID [2019-01-31 15:00:54,811 INFO L273 TraceCheckUtils]: 3: Hoare triple {13024#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {13024#true} is VALID [2019-01-31 15:00:54,811 INFO L273 TraceCheckUtils]: 2: Hoare triple {13024#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {13024#true} is VALID [2019-01-31 15:00:54,811 INFO L273 TraceCheckUtils]: 1: Hoare triple {13024#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {13024#true} is VALID [2019-01-31 15:00:54,812 INFO L273 TraceCheckUtils]: 0: Hoare triple {13024#true} havoc main_#res;havoc main_#t~nondet0, main_#t~nondet2, main_#t~post1, main_#t~post4, main_#t~post3, main_#t~post6, main_#t~post5, main_~MAX~6, main_~str1~6, main_~str2~6, main_~cont~6, main_~i~6, main_~j~6;main_~MAX~6 := (if main_#t~nondet0 % 4294967296 % 4294967296 <= 2147483647 then main_#t~nondet0 % 4294967296 % 4294967296 else main_#t~nondet0 % 4294967296 % 4294967296 - 4294967296);havoc main_#t~nondet0;havoc main_~str1~6;havoc main_~str2~6;havoc main_~cont~6;havoc main_~i~6;havoc main_~j~6;main_~cont~6 := 0;main_~i~6 := 0; {13024#true} is VALID [2019-01-31 15:00:54,815 INFO L134 CoverageAnalysis]: Checked inductivity of 506 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 253 trivial. 0 not checked. [2019-01-31 15:00:54,834 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-01-31 15:00:54,834 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [47, 25, 25] total 94 [2019-01-31 15:00:54,835 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-01-31 15:00:54,835 INFO L78 Accepts]: Start accepts. Automaton has 71 states. Word has length 48 [2019-01-31 15:00:54,835 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-01-31 15:00:54,835 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 71 states. [2019-01-31 15:00:54,904 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 74 edges. 74 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-01-31 15:00:54,905 INFO L459 AbstractCegarLoop]: Interpolant automaton has 71 states [2019-01-31 15:00:54,905 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 71 interpolants. [2019-01-31 15:00:54,906 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1198, Invalid=7544, Unknown=0, NotChecked=0, Total=8742 [2019-01-31 15:00:54,906 INFO L87 Difference]: Start difference. First operand 49 states and 50 transitions. Second operand 71 states. [2019-01-31 15:01:07,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 15:01:07,014 INFO L93 Difference]: Finished difference Result 77 states and 81 transitions. [2019-01-31 15:01:07,014 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 74 states. [2019-01-31 15:01:07,014 INFO L78 Accepts]: Start accepts. Automaton has 71 states. Word has length 48 [2019-01-31 15:01:07,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-31 15:01:07,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2019-01-31 15:01:07,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 81 transitions. [2019-01-31 15:01:07,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2019-01-31 15:01:07,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 81 transitions. [2019-01-31 15:01:07,017 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 74 states and 81 transitions. [2019-01-31 15:01:07,109 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 81 edges. 81 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-01-31 15:01:07,110 INFO L225 Difference]: With dead ends: 77 [2019-01-31 15:01:07,110 INFO L226 Difference]: Without dead ends: 51 [2019-01-31 15:01:07,111 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 168 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 119 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1174 ImplicationChecksByTransitivity, 6.2s TimeCoverageRelationStatistics Valid=1957, Invalid=12563, Unknown=0, NotChecked=0, Total=14520 [2019-01-31 15:01:07,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2019-01-31 15:01:08,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2019-01-31 15:01:08,019 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-01-31 15:01:08,019 INFO L82 GeneralOperation]: Start isEquivalent. First operand 51 states. Second operand 51 states. [2019-01-31 15:01:08,019 INFO L74 IsIncluded]: Start isIncluded. First operand 51 states. Second operand 51 states. [2019-01-31 15:01:08,019 INFO L87 Difference]: Start difference. First operand 51 states. Second operand 51 states. [2019-01-31 15:01:08,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 15:01:08,020 INFO L93 Difference]: Finished difference Result 51 states and 52 transitions. [2019-01-31 15:01:08,021 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 52 transitions. [2019-01-31 15:01:08,021 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-31 15:01:08,021 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-01-31 15:01:08,021 INFO L74 IsIncluded]: Start isIncluded. First operand 51 states. Second operand 51 states. [2019-01-31 15:01:08,021 INFO L87 Difference]: Start difference. First operand 51 states. Second operand 51 states. [2019-01-31 15:01:08,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 15:01:08,022 INFO L93 Difference]: Finished difference Result 51 states and 52 transitions. [2019-01-31 15:01:08,022 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 52 transitions. [2019-01-31 15:01:08,022 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-31 15:01:08,022 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-01-31 15:01:08,022 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-01-31 15:01:08,022 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-01-31 15:01:08,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2019-01-31 15:01:08,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 52 transitions. [2019-01-31 15:01:08,023 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 52 transitions. Word has length 48 [2019-01-31 15:01:08,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-31 15:01:08,023 INFO L480 AbstractCegarLoop]: Abstraction has 51 states and 52 transitions. [2019-01-31 15:01:08,023 INFO L481 AbstractCegarLoop]: Interpolant automaton has 71 states. [2019-01-31 15:01:08,023 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 52 transitions. [2019-01-31 15:01:08,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2019-01-31 15:01:08,023 INFO L394 BasicCegarLoop]: Found error trace [2019-01-31 15:01:08,024 INFO L402 BasicCegarLoop]: trace histogram [23, 23, 1, 1, 1, 1] [2019-01-31 15:01:08,024 INFO L423 AbstractCegarLoop]: === Iteration 36 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2019-01-31 15:01:08,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-31 15:01:08,024 INFO L82 PathProgramCache]: Analyzing trace with hash 1451759573, now seen corresponding path program 34 times [2019-01-31 15:01:08,024 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-01-31 15:01:08,024 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-31 15:01:08,025 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-01-31 15:01:08,025 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-31 15:01:08,025 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-01-31 15:01:08,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-31 15:01:09,751 INFO L273 TraceCheckUtils]: 0: Hoare triple {13809#true} havoc main_#res;havoc main_#t~nondet0, main_#t~nondet2, main_#t~post1, main_#t~post4, main_#t~post3, main_#t~post6, main_#t~post5, main_~MAX~6, main_~str1~6, main_~str2~6, main_~cont~6, main_~i~6, main_~j~6;main_~MAX~6 := (if main_#t~nondet0 % 4294967296 % 4294967296 <= 2147483647 then main_#t~nondet0 % 4294967296 % 4294967296 else main_#t~nondet0 % 4294967296 % 4294967296 - 4294967296);havoc main_#t~nondet0;havoc main_~str1~6;havoc main_~str2~6;havoc main_~cont~6;havoc main_~i~6;havoc main_~j~6;main_~cont~6 := 0;main_~i~6 := 0; {13811#(and (<= ULTIMATE.start_main_~i~6 0) (<= 0 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:01:09,752 INFO L273 TraceCheckUtils]: 1: Hoare triple {13811#(and (<= ULTIMATE.start_main_~i~6 0) (<= 0 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {13812#(and (<= ULTIMATE.start_main_~i~6 1) (<= 1 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:01:09,753 INFO L273 TraceCheckUtils]: 2: Hoare triple {13812#(and (<= ULTIMATE.start_main_~i~6 1) (<= 1 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {13813#(and (<= ULTIMATE.start_main_~i~6 2) (<= 2 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:01:09,754 INFO L273 TraceCheckUtils]: 3: Hoare triple {13813#(and (<= ULTIMATE.start_main_~i~6 2) (<= 2 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {13814#(and (<= 3 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 3))} is VALID [2019-01-31 15:01:09,755 INFO L273 TraceCheckUtils]: 4: Hoare triple {13814#(and (<= 3 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 3))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {13815#(and (<= ULTIMATE.start_main_~i~6 4) (<= 4 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:01:09,756 INFO L273 TraceCheckUtils]: 5: Hoare triple {13815#(and (<= ULTIMATE.start_main_~i~6 4) (<= 4 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {13816#(and (<= 5 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 5))} is VALID [2019-01-31 15:01:09,758 INFO L273 TraceCheckUtils]: 6: Hoare triple {13816#(and (<= 5 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 5))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {13817#(and (<= ULTIMATE.start_main_~i~6 6) (<= 6 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:01:09,759 INFO L273 TraceCheckUtils]: 7: Hoare triple {13817#(and (<= ULTIMATE.start_main_~i~6 6) (<= 6 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {13818#(and (<= 7 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 7))} is VALID [2019-01-31 15:01:09,760 INFO L273 TraceCheckUtils]: 8: Hoare triple {13818#(and (<= 7 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 7))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {13819#(and (<= ULTIMATE.start_main_~i~6 8) (<= 8 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:01:09,761 INFO L273 TraceCheckUtils]: 9: Hoare triple {13819#(and (<= ULTIMATE.start_main_~i~6 8) (<= 8 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {13820#(and (<= ULTIMATE.start_main_~i~6 9) (<= 9 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:01:09,761 INFO L273 TraceCheckUtils]: 10: Hoare triple {13820#(and (<= ULTIMATE.start_main_~i~6 9) (<= 9 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {13821#(and (<= ULTIMATE.start_main_~i~6 10) (<= 10 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:01:09,762 INFO L273 TraceCheckUtils]: 11: Hoare triple {13821#(and (<= ULTIMATE.start_main_~i~6 10) (<= 10 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {13822#(and (<= 11 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 11))} is VALID [2019-01-31 15:01:09,763 INFO L273 TraceCheckUtils]: 12: Hoare triple {13822#(and (<= 11 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 11))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {13823#(and (<= ULTIMATE.start_main_~i~6 12) (<= 12 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:01:09,763 INFO L273 TraceCheckUtils]: 13: Hoare triple {13823#(and (<= ULTIMATE.start_main_~i~6 12) (<= 12 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {13824#(and (<= ULTIMATE.start_main_~i~6 13) (<= 13 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:01:09,764 INFO L273 TraceCheckUtils]: 14: Hoare triple {13824#(and (<= ULTIMATE.start_main_~i~6 13) (<= 13 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {13825#(and (<= ULTIMATE.start_main_~i~6 14) (<= 14 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:01:09,765 INFO L273 TraceCheckUtils]: 15: Hoare triple {13825#(and (<= ULTIMATE.start_main_~i~6 14) (<= 14 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {13826#(and (<= 15 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 15))} is VALID [2019-01-31 15:01:09,766 INFO L273 TraceCheckUtils]: 16: Hoare triple {13826#(and (<= 15 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 15))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {13827#(and (<= 16 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 16))} is VALID [2019-01-31 15:01:09,767 INFO L273 TraceCheckUtils]: 17: Hoare triple {13827#(and (<= 16 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 16))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {13828#(and (<= ULTIMATE.start_main_~i~6 17) (<= 17 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:01:09,768 INFO L273 TraceCheckUtils]: 18: Hoare triple {13828#(and (<= ULTIMATE.start_main_~i~6 17) (<= 17 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {13829#(and (<= ULTIMATE.start_main_~i~6 18) (<= 18 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:01:09,769 INFO L273 TraceCheckUtils]: 19: Hoare triple {13829#(and (<= ULTIMATE.start_main_~i~6 18) (<= 18 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {13830#(and (<= ULTIMATE.start_main_~i~6 19) (<= 19 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:01:09,770 INFO L273 TraceCheckUtils]: 20: Hoare triple {13830#(and (<= ULTIMATE.start_main_~i~6 19) (<= 19 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {13831#(and (<= ULTIMATE.start_main_~i~6 20) (<= 20 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:01:09,771 INFO L273 TraceCheckUtils]: 21: Hoare triple {13831#(and (<= ULTIMATE.start_main_~i~6 20) (<= 20 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {13832#(and (<= ULTIMATE.start_main_~i~6 21) (<= 21 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:01:09,772 INFO L273 TraceCheckUtils]: 22: Hoare triple {13832#(and (<= ULTIMATE.start_main_~i~6 21) (<= 21 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {13833#(or (not (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 1))) (and (<= 22 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 22)))} is VALID [2019-01-31 15:01:09,773 INFO L273 TraceCheckUtils]: 23: Hoare triple {13833#(or (not (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 1))) (and (<= 22 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 22)))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {13834#(or (<= (+ ULTIMATE.start_main_~i~6 1) ULTIMATE.start_main_~MAX~6) (= 23 ULTIMATE.start_main_~MAX~6))} is VALID [2019-01-31 15:01:09,774 INFO L273 TraceCheckUtils]: 24: Hoare triple {13834#(or (<= (+ ULTIMATE.start_main_~i~6 1) ULTIMATE.start_main_~MAX~6) (= 23 ULTIMATE.start_main_~MAX~6))} assume !(main_~i~6 < main_~MAX~6);main_~str1~6 := main_~str1~6[main_~MAX~6 - 1 := 0];main_~j~6 := 0;main_~i~6 := main_~MAX~6 - 1; {13835#(= (+ ULTIMATE.start_main_~j~6 23) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:01:09,775 INFO L273 TraceCheckUtils]: 25: Hoare triple {13835#(= (+ ULTIMATE.start_main_~j~6 23) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {13836#(= (+ ULTIMATE.start_main_~j~6 22) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:01:09,776 INFO L273 TraceCheckUtils]: 26: Hoare triple {13836#(= (+ ULTIMATE.start_main_~j~6 22) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {13837#(= (+ ULTIMATE.start_main_~j~6 21) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:01:09,777 INFO L273 TraceCheckUtils]: 27: Hoare triple {13837#(= (+ ULTIMATE.start_main_~j~6 21) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {13838#(= (+ ULTIMATE.start_main_~j~6 20) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:01:09,778 INFO L273 TraceCheckUtils]: 28: Hoare triple {13838#(= (+ ULTIMATE.start_main_~j~6 20) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {13839#(= (+ ULTIMATE.start_main_~j~6 19) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:01:09,779 INFO L273 TraceCheckUtils]: 29: Hoare triple {13839#(= (+ ULTIMATE.start_main_~j~6 19) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {13840#(= (+ ULTIMATE.start_main_~j~6 18) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:01:09,780 INFO L273 TraceCheckUtils]: 30: Hoare triple {13840#(= (+ ULTIMATE.start_main_~j~6 18) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {13841#(= (+ ULTIMATE.start_main_~j~6 17) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:01:09,781 INFO L273 TraceCheckUtils]: 31: Hoare triple {13841#(= (+ ULTIMATE.start_main_~j~6 17) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {13842#(= (+ ULTIMATE.start_main_~j~6 16) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:01:09,782 INFO L273 TraceCheckUtils]: 32: Hoare triple {13842#(= (+ ULTIMATE.start_main_~j~6 16) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {13843#(= (+ ULTIMATE.start_main_~j~6 15) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:01:09,783 INFO L273 TraceCheckUtils]: 33: Hoare triple {13843#(= (+ ULTIMATE.start_main_~j~6 15) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {13844#(= (+ ULTIMATE.start_main_~j~6 14) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:01:09,784 INFO L273 TraceCheckUtils]: 34: Hoare triple {13844#(= (+ ULTIMATE.start_main_~j~6 14) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {13845#(= (+ ULTIMATE.start_main_~j~6 13) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:01:09,784 INFO L273 TraceCheckUtils]: 35: Hoare triple {13845#(= (+ ULTIMATE.start_main_~j~6 13) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {13846#(= (+ ULTIMATE.start_main_~j~6 12) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:01:09,785 INFO L273 TraceCheckUtils]: 36: Hoare triple {13846#(= (+ ULTIMATE.start_main_~j~6 12) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {13847#(= (+ ULTIMATE.start_main_~j~6 11) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:01:09,786 INFO L273 TraceCheckUtils]: 37: Hoare triple {13847#(= (+ ULTIMATE.start_main_~j~6 11) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {13848#(= (+ ULTIMATE.start_main_~j~6 10) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:01:09,787 INFO L273 TraceCheckUtils]: 38: Hoare triple {13848#(= (+ ULTIMATE.start_main_~j~6 10) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {13849#(= (+ ULTIMATE.start_main_~j~6 9) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:01:09,788 INFO L273 TraceCheckUtils]: 39: Hoare triple {13849#(= (+ ULTIMATE.start_main_~j~6 9) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {13850#(= (+ ULTIMATE.start_main_~j~6 8) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:01:09,789 INFO L273 TraceCheckUtils]: 40: Hoare triple {13850#(= (+ ULTIMATE.start_main_~j~6 8) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {13851#(= (+ ULTIMATE.start_main_~j~6 7) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:01:09,790 INFO L273 TraceCheckUtils]: 41: Hoare triple {13851#(= (+ ULTIMATE.start_main_~j~6 7) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {13852#(= (+ ULTIMATE.start_main_~j~6 6) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:01:09,791 INFO L273 TraceCheckUtils]: 42: Hoare triple {13852#(= (+ ULTIMATE.start_main_~j~6 6) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {13853#(= (+ ULTIMATE.start_main_~j~6 5) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:01:09,792 INFO L273 TraceCheckUtils]: 43: Hoare triple {13853#(= (+ ULTIMATE.start_main_~j~6 5) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {13854#(= (+ ULTIMATE.start_main_~j~6 4) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:01:09,793 INFO L273 TraceCheckUtils]: 44: Hoare triple {13854#(= (+ ULTIMATE.start_main_~j~6 4) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {13855#(= (+ ULTIMATE.start_main_~j~6 3) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:01:09,794 INFO L273 TraceCheckUtils]: 45: Hoare triple {13855#(= (+ ULTIMATE.start_main_~j~6 3) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {13856#(= (+ ULTIMATE.start_main_~j~6 2) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:01:09,795 INFO L273 TraceCheckUtils]: 46: Hoare triple {13856#(= (+ ULTIMATE.start_main_~j~6 2) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {13857#(= (+ ULTIMATE.start_main_~j~6 1) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:01:09,796 INFO L273 TraceCheckUtils]: 47: Hoare triple {13857#(= (+ ULTIMATE.start_main_~j~6 1) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {13858#(= (select ULTIMATE.start_main_~str1~6 0) (select ULTIMATE.start_main_~str2~6 (+ ULTIMATE.start_main_~MAX~6 (- 1))))} is VALID [2019-01-31 15:01:09,797 INFO L273 TraceCheckUtils]: 48: Hoare triple {13858#(= (select ULTIMATE.start_main_~str1~6 0) (select ULTIMATE.start_main_~str2~6 (+ ULTIMATE.start_main_~MAX~6 (- 1))))} assume !(main_~i~6 >= 0);main_~j~6 := main_~MAX~6 - 1;main_~i~6 := 0;assume !!(main_~i~6 < main_~MAX~6);__VERIFIER_assert_#in~cond := (if main_~str1~6[main_~i~6] == main_~str2~6[main_~j~6] then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond;assume __VERIFIER_assert_~cond == 0;assume !false; {13810#false} is VALID [2019-01-31 15:01:09,797 INFO L273 TraceCheckUtils]: 49: Hoare triple {13810#false} assume !false; {13810#false} is VALID [2019-01-31 15:01:09,802 INFO L134 CoverageAnalysis]: Checked inductivity of 552 backedges. 0 proven. 552 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-31 15:01:09,803 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-31 15:01:09,803 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-01-31 15:01:09,803 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-01-31 15:01:09,803 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-01-31 15:01:09,803 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-31 15:01:09,803 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 35 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 35 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-01-31 15:01:09,812 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-31 15:01:09,812 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2019-01-31 15:01:09,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-31 15:01:09,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-31 15:01:09,880 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-31 15:01:11,528 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2019-01-31 15:01:11,530 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-01-31 15:01:11,536 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-31 15:01:11,536 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:15, output treesize:14 [2019-01-31 15:01:11,539 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-01-31 15:01:11,539 WARN L398 uantifierElimination]: Input elimination task: ∃ [v_ULTIMATE.start_main_~str2~6_403]. (and (= (store v_ULTIMATE.start_main_~str2~6_403 22 (select ULTIMATE.start_main_~str1~6 0)) ULTIMATE.start_main_~str2~6) (<= 23 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 23)) [2019-01-31 15:01:11,539 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= (select ULTIMATE.start_main_~str2~6 22) (select ULTIMATE.start_main_~str1~6 0)) (<= 23 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 23)) [2019-01-31 15:01:11,615 INFO L273 TraceCheckUtils]: 0: Hoare triple {13809#true} havoc main_#res;havoc main_#t~nondet0, main_#t~nondet2, main_#t~post1, main_#t~post4, main_#t~post3, main_#t~post6, main_#t~post5, main_~MAX~6, main_~str1~6, main_~str2~6, main_~cont~6, main_~i~6, main_~j~6;main_~MAX~6 := (if main_#t~nondet0 % 4294967296 % 4294967296 <= 2147483647 then main_#t~nondet0 % 4294967296 % 4294967296 else main_#t~nondet0 % 4294967296 % 4294967296 - 4294967296);havoc main_#t~nondet0;havoc main_~str1~6;havoc main_~str2~6;havoc main_~cont~6;havoc main_~i~6;havoc main_~j~6;main_~cont~6 := 0;main_~i~6 := 0; {13811#(and (<= ULTIMATE.start_main_~i~6 0) (<= 0 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:01:11,616 INFO L273 TraceCheckUtils]: 1: Hoare triple {13811#(and (<= ULTIMATE.start_main_~i~6 0) (<= 0 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {13812#(and (<= ULTIMATE.start_main_~i~6 1) (<= 1 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:01:11,617 INFO L273 TraceCheckUtils]: 2: Hoare triple {13812#(and (<= ULTIMATE.start_main_~i~6 1) (<= 1 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {13813#(and (<= ULTIMATE.start_main_~i~6 2) (<= 2 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:01:11,618 INFO L273 TraceCheckUtils]: 3: Hoare triple {13813#(and (<= ULTIMATE.start_main_~i~6 2) (<= 2 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {13814#(and (<= 3 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 3))} is VALID [2019-01-31 15:01:11,619 INFO L273 TraceCheckUtils]: 4: Hoare triple {13814#(and (<= 3 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 3))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {13815#(and (<= ULTIMATE.start_main_~i~6 4) (<= 4 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:01:11,620 INFO L273 TraceCheckUtils]: 5: Hoare triple {13815#(and (<= ULTIMATE.start_main_~i~6 4) (<= 4 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {13816#(and (<= 5 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 5))} is VALID [2019-01-31 15:01:11,621 INFO L273 TraceCheckUtils]: 6: Hoare triple {13816#(and (<= 5 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 5))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {13817#(and (<= ULTIMATE.start_main_~i~6 6) (<= 6 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:01:11,622 INFO L273 TraceCheckUtils]: 7: Hoare triple {13817#(and (<= ULTIMATE.start_main_~i~6 6) (<= 6 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {13818#(and (<= 7 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 7))} is VALID [2019-01-31 15:01:11,623 INFO L273 TraceCheckUtils]: 8: Hoare triple {13818#(and (<= 7 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 7))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {13819#(and (<= ULTIMATE.start_main_~i~6 8) (<= 8 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:01:11,623 INFO L273 TraceCheckUtils]: 9: Hoare triple {13819#(and (<= ULTIMATE.start_main_~i~6 8) (<= 8 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {13820#(and (<= ULTIMATE.start_main_~i~6 9) (<= 9 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:01:11,624 INFO L273 TraceCheckUtils]: 10: Hoare triple {13820#(and (<= ULTIMATE.start_main_~i~6 9) (<= 9 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {13821#(and (<= ULTIMATE.start_main_~i~6 10) (<= 10 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:01:11,625 INFO L273 TraceCheckUtils]: 11: Hoare triple {13821#(and (<= ULTIMATE.start_main_~i~6 10) (<= 10 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {13822#(and (<= 11 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 11))} is VALID [2019-01-31 15:01:11,626 INFO L273 TraceCheckUtils]: 12: Hoare triple {13822#(and (<= 11 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 11))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {13823#(and (<= ULTIMATE.start_main_~i~6 12) (<= 12 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:01:11,627 INFO L273 TraceCheckUtils]: 13: Hoare triple {13823#(and (<= ULTIMATE.start_main_~i~6 12) (<= 12 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {13824#(and (<= ULTIMATE.start_main_~i~6 13) (<= 13 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:01:11,628 INFO L273 TraceCheckUtils]: 14: Hoare triple {13824#(and (<= ULTIMATE.start_main_~i~6 13) (<= 13 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {13825#(and (<= ULTIMATE.start_main_~i~6 14) (<= 14 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:01:11,629 INFO L273 TraceCheckUtils]: 15: Hoare triple {13825#(and (<= ULTIMATE.start_main_~i~6 14) (<= 14 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {13826#(and (<= 15 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 15))} is VALID [2019-01-31 15:01:11,630 INFO L273 TraceCheckUtils]: 16: Hoare triple {13826#(and (<= 15 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 15))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {13827#(and (<= 16 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 16))} is VALID [2019-01-31 15:01:11,631 INFO L273 TraceCheckUtils]: 17: Hoare triple {13827#(and (<= 16 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 16))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {13828#(and (<= ULTIMATE.start_main_~i~6 17) (<= 17 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:01:11,632 INFO L273 TraceCheckUtils]: 18: Hoare triple {13828#(and (<= ULTIMATE.start_main_~i~6 17) (<= 17 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {13829#(and (<= ULTIMATE.start_main_~i~6 18) (<= 18 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:01:11,633 INFO L273 TraceCheckUtils]: 19: Hoare triple {13829#(and (<= ULTIMATE.start_main_~i~6 18) (<= 18 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {13830#(and (<= ULTIMATE.start_main_~i~6 19) (<= 19 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:01:11,636 INFO L273 TraceCheckUtils]: 20: Hoare triple {13830#(and (<= ULTIMATE.start_main_~i~6 19) (<= 19 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {13831#(and (<= ULTIMATE.start_main_~i~6 20) (<= 20 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:01:11,637 INFO L273 TraceCheckUtils]: 21: Hoare triple {13831#(and (<= ULTIMATE.start_main_~i~6 20) (<= 20 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {13832#(and (<= ULTIMATE.start_main_~i~6 21) (<= 21 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:01:11,638 INFO L273 TraceCheckUtils]: 22: Hoare triple {13832#(and (<= ULTIMATE.start_main_~i~6 21) (<= 21 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {13928#(and (<= 22 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 22))} is VALID [2019-01-31 15:01:11,638 INFO L273 TraceCheckUtils]: 23: Hoare triple {13928#(and (<= 22 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 22))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {13932#(and (<= 23 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~i~6 23))} is VALID [2019-01-31 15:01:11,639 INFO L273 TraceCheckUtils]: 24: Hoare triple {13932#(and (<= 23 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~i~6 23))} assume !(main_~i~6 < main_~MAX~6);main_~str1~6 := main_~str1~6[main_~MAX~6 - 1 := 0];main_~j~6 := 0;main_~i~6 := main_~MAX~6 - 1; {13936#(and (= ULTIMATE.start_main_~j~6 0) (<= 23 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 23))} is VALID [2019-01-31 15:01:11,640 INFO L273 TraceCheckUtils]: 25: Hoare triple {13936#(and (= ULTIMATE.start_main_~j~6 0) (<= 23 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 23))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {13940#(and (= ULTIMATE.start_main_~j~6 1) (<= 23 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 23))} is VALID [2019-01-31 15:01:11,641 INFO L273 TraceCheckUtils]: 26: Hoare triple {13940#(and (= ULTIMATE.start_main_~j~6 1) (<= 23 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 23))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {13944#(and (<= 23 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 23) (= ULTIMATE.start_main_~j~6 2))} is VALID [2019-01-31 15:01:11,642 INFO L273 TraceCheckUtils]: 27: Hoare triple {13944#(and (<= 23 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 23) (= ULTIMATE.start_main_~j~6 2))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {13948#(and (<= 23 ULTIMATE.start_main_~MAX~6) (= ULTIMATE.start_main_~j~6 3) (<= ULTIMATE.start_main_~MAX~6 23))} is VALID [2019-01-31 15:01:11,643 INFO L273 TraceCheckUtils]: 28: Hoare triple {13948#(and (<= 23 ULTIMATE.start_main_~MAX~6) (= ULTIMATE.start_main_~j~6 3) (<= ULTIMATE.start_main_~MAX~6 23))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {13952#(and (<= 23 ULTIMATE.start_main_~MAX~6) (= ULTIMATE.start_main_~j~6 4) (<= ULTIMATE.start_main_~MAX~6 23))} is VALID [2019-01-31 15:01:11,644 INFO L273 TraceCheckUtils]: 29: Hoare triple {13952#(and (<= 23 ULTIMATE.start_main_~MAX~6) (= ULTIMATE.start_main_~j~6 4) (<= ULTIMATE.start_main_~MAX~6 23))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {13956#(and (= ULTIMATE.start_main_~j~6 5) (<= 23 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 23))} is VALID [2019-01-31 15:01:11,644 INFO L273 TraceCheckUtils]: 30: Hoare triple {13956#(and (= ULTIMATE.start_main_~j~6 5) (<= 23 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 23))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {13960#(and (<= 23 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 23) (= ULTIMATE.start_main_~j~6 6))} is VALID [2019-01-31 15:01:11,645 INFO L273 TraceCheckUtils]: 31: Hoare triple {13960#(and (<= 23 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 23) (= ULTIMATE.start_main_~j~6 6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {13964#(and (= ULTIMATE.start_main_~j~6 7) (<= 23 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 23))} is VALID [2019-01-31 15:01:11,646 INFO L273 TraceCheckUtils]: 32: Hoare triple {13964#(and (= ULTIMATE.start_main_~j~6 7) (<= 23 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 23))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {13968#(and (= ULTIMATE.start_main_~j~6 8) (<= 23 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 23))} is VALID [2019-01-31 15:01:11,647 INFO L273 TraceCheckUtils]: 33: Hoare triple {13968#(and (= ULTIMATE.start_main_~j~6 8) (<= 23 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 23))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {13972#(and (= ULTIMATE.start_main_~j~6 9) (<= 23 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 23))} is VALID [2019-01-31 15:01:11,648 INFO L273 TraceCheckUtils]: 34: Hoare triple {13972#(and (= ULTIMATE.start_main_~j~6 9) (<= 23 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 23))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {13976#(and (= ULTIMATE.start_main_~j~6 10) (<= 23 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 23))} is VALID [2019-01-31 15:01:11,649 INFO L273 TraceCheckUtils]: 35: Hoare triple {13976#(and (= ULTIMATE.start_main_~j~6 10) (<= 23 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 23))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {13980#(and (<= 23 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 23) (= ULTIMATE.start_main_~j~6 11))} is VALID [2019-01-31 15:01:11,649 INFO L273 TraceCheckUtils]: 36: Hoare triple {13980#(and (<= 23 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 23) (= ULTIMATE.start_main_~j~6 11))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {13984#(and (= ULTIMATE.start_main_~j~6 12) (<= 23 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 23))} is VALID [2019-01-31 15:01:11,650 INFO L273 TraceCheckUtils]: 37: Hoare triple {13984#(and (= ULTIMATE.start_main_~j~6 12) (<= 23 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 23))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {13988#(and (= ULTIMATE.start_main_~j~6 13) (<= 23 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 23))} is VALID [2019-01-31 15:01:11,651 INFO L273 TraceCheckUtils]: 38: Hoare triple {13988#(and (= ULTIMATE.start_main_~j~6 13) (<= 23 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 23))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {13992#(and (<= 23 ULTIMATE.start_main_~MAX~6) (= ULTIMATE.start_main_~j~6 14) (<= ULTIMATE.start_main_~MAX~6 23))} is VALID [2019-01-31 15:01:11,652 INFO L273 TraceCheckUtils]: 39: Hoare triple {13992#(and (<= 23 ULTIMATE.start_main_~MAX~6) (= ULTIMATE.start_main_~j~6 14) (<= ULTIMATE.start_main_~MAX~6 23))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {13996#(and (<= 23 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 23) (= ULTIMATE.start_main_~j~6 15))} is VALID [2019-01-31 15:01:11,652 INFO L273 TraceCheckUtils]: 40: Hoare triple {13996#(and (<= 23 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 23) (= ULTIMATE.start_main_~j~6 15))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {14000#(and (<= 23 ULTIMATE.start_main_~MAX~6) (= ULTIMATE.start_main_~j~6 16) (<= ULTIMATE.start_main_~MAX~6 23))} is VALID [2019-01-31 15:01:11,653 INFO L273 TraceCheckUtils]: 41: Hoare triple {14000#(and (<= 23 ULTIMATE.start_main_~MAX~6) (= ULTIMATE.start_main_~j~6 16) (<= ULTIMATE.start_main_~MAX~6 23))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {14004#(and (= ULTIMATE.start_main_~j~6 17) (<= 23 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 23))} is VALID [2019-01-31 15:01:11,654 INFO L273 TraceCheckUtils]: 42: Hoare triple {14004#(and (= ULTIMATE.start_main_~j~6 17) (<= 23 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 23))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {14008#(and (= ULTIMATE.start_main_~j~6 18) (<= 23 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 23))} is VALID [2019-01-31 15:01:11,655 INFO L273 TraceCheckUtils]: 43: Hoare triple {14008#(and (= ULTIMATE.start_main_~j~6 18) (<= 23 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 23))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {14012#(and (= ULTIMATE.start_main_~j~6 19) (<= 23 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 23))} is VALID [2019-01-31 15:01:11,656 INFO L273 TraceCheckUtils]: 44: Hoare triple {14012#(and (= ULTIMATE.start_main_~j~6 19) (<= 23 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 23))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {14016#(and (= ULTIMATE.start_main_~j~6 20) (<= 23 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 23))} is VALID [2019-01-31 15:01:11,657 INFO L273 TraceCheckUtils]: 45: Hoare triple {14016#(and (= ULTIMATE.start_main_~j~6 20) (<= 23 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 23))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {14020#(and (= ULTIMATE.start_main_~j~6 21) (<= 23 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 23))} is VALID [2019-01-31 15:01:11,657 INFO L273 TraceCheckUtils]: 46: Hoare triple {14020#(and (= ULTIMATE.start_main_~j~6 21) (<= 23 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 23))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {14024#(and (<= 23 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 23) (= ULTIMATE.start_main_~j~6 22))} is VALID [2019-01-31 15:01:11,658 INFO L273 TraceCheckUtils]: 47: Hoare triple {14024#(and (<= 23 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 23) (= ULTIMATE.start_main_~j~6 22))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {14028#(and (= (select ULTIMATE.start_main_~str2~6 22) (select ULTIMATE.start_main_~str1~6 0)) (<= 23 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 23))} is VALID [2019-01-31 15:01:11,660 INFO L273 TraceCheckUtils]: 48: Hoare triple {14028#(and (= (select ULTIMATE.start_main_~str2~6 22) (select ULTIMATE.start_main_~str1~6 0)) (<= 23 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 23))} assume !(main_~i~6 >= 0);main_~j~6 := main_~MAX~6 - 1;main_~i~6 := 0;assume !!(main_~i~6 < main_~MAX~6);__VERIFIER_assert_#in~cond := (if main_~str1~6[main_~i~6] == main_~str2~6[main_~j~6] then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond;assume __VERIFIER_assert_~cond == 0;assume !false; {13810#false} is VALID [2019-01-31 15:01:11,660 INFO L273 TraceCheckUtils]: 49: Hoare triple {13810#false} assume !false; {13810#false} is VALID [2019-01-31 15:01:11,666 INFO L134 CoverageAnalysis]: Checked inductivity of 552 backedges. 0 proven. 552 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-31 15:01:11,666 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2019-01-31 15:01:11,695 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 5 [2019-01-31 15:01:11,697 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-01-31 15:01:11,700 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-31 15:01:11,701 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:14, output treesize:5 [2019-01-31 15:01:11,703 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-01-31 15:01:11,703 WARN L398 uantifierElimination]: Input elimination task: ∀ [ULTIMATE.start_main_~str2~6, ULTIMATE.start_main_~str1~6]. (let ((.cse0 (select ULTIMATE.start_main_~str1~6 0))) (= .cse0 (select (store ULTIMATE.start_main_~str2~6 ULTIMATE.start_main_~j~6 .cse0) (+ ULTIMATE.start_main_~MAX~6 (- 1))))) [2019-01-31 15:01:11,703 WARN L399 uantifierElimination]: ElimStorePlain result: ∀ []. (= (+ ULTIMATE.start_main_~j~6 1) ULTIMATE.start_main_~MAX~6) [2019-01-31 15:01:12,327 INFO L273 TraceCheckUtils]: 49: Hoare triple {13810#false} assume !false; {13810#false} is VALID [2019-01-31 15:01:12,328 INFO L273 TraceCheckUtils]: 48: Hoare triple {13858#(= (select ULTIMATE.start_main_~str1~6 0) (select ULTIMATE.start_main_~str2~6 (+ ULTIMATE.start_main_~MAX~6 (- 1))))} assume !(main_~i~6 >= 0);main_~j~6 := main_~MAX~6 - 1;main_~i~6 := 0;assume !!(main_~i~6 < main_~MAX~6);__VERIFIER_assert_#in~cond := (if main_~str1~6[main_~i~6] == main_~str2~6[main_~j~6] then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond;assume __VERIFIER_assert_~cond == 0;assume !false; {13810#false} is VALID [2019-01-31 15:01:12,329 INFO L273 TraceCheckUtils]: 47: Hoare triple {13857#(= (+ ULTIMATE.start_main_~j~6 1) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {13858#(= (select ULTIMATE.start_main_~str1~6 0) (select ULTIMATE.start_main_~str2~6 (+ ULTIMATE.start_main_~MAX~6 (- 1))))} is VALID [2019-01-31 15:01:12,330 INFO L273 TraceCheckUtils]: 46: Hoare triple {13856#(= (+ ULTIMATE.start_main_~j~6 2) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {13857#(= (+ ULTIMATE.start_main_~j~6 1) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:01:12,331 INFO L273 TraceCheckUtils]: 45: Hoare triple {13855#(= (+ ULTIMATE.start_main_~j~6 3) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {13856#(= (+ ULTIMATE.start_main_~j~6 2) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:01:12,332 INFO L273 TraceCheckUtils]: 44: Hoare triple {13854#(= (+ ULTIMATE.start_main_~j~6 4) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {13855#(= (+ ULTIMATE.start_main_~j~6 3) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:01:12,333 INFO L273 TraceCheckUtils]: 43: Hoare triple {13853#(= (+ ULTIMATE.start_main_~j~6 5) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {13854#(= (+ ULTIMATE.start_main_~j~6 4) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:01:12,334 INFO L273 TraceCheckUtils]: 42: Hoare triple {13852#(= (+ ULTIMATE.start_main_~j~6 6) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {13853#(= (+ ULTIMATE.start_main_~j~6 5) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:01:12,335 INFO L273 TraceCheckUtils]: 41: Hoare triple {13851#(= (+ ULTIMATE.start_main_~j~6 7) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {13852#(= (+ ULTIMATE.start_main_~j~6 6) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:01:12,336 INFO L273 TraceCheckUtils]: 40: Hoare triple {13850#(= (+ ULTIMATE.start_main_~j~6 8) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {13851#(= (+ ULTIMATE.start_main_~j~6 7) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:01:12,337 INFO L273 TraceCheckUtils]: 39: Hoare triple {13849#(= (+ ULTIMATE.start_main_~j~6 9) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {13850#(= (+ ULTIMATE.start_main_~j~6 8) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:01:12,338 INFO L273 TraceCheckUtils]: 38: Hoare triple {13848#(= (+ ULTIMATE.start_main_~j~6 10) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {13849#(= (+ ULTIMATE.start_main_~j~6 9) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:01:12,339 INFO L273 TraceCheckUtils]: 37: Hoare triple {13847#(= (+ ULTIMATE.start_main_~j~6 11) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {13848#(= (+ ULTIMATE.start_main_~j~6 10) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:01:12,340 INFO L273 TraceCheckUtils]: 36: Hoare triple {13846#(= (+ ULTIMATE.start_main_~j~6 12) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {13847#(= (+ ULTIMATE.start_main_~j~6 11) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:01:12,341 INFO L273 TraceCheckUtils]: 35: Hoare triple {13845#(= (+ ULTIMATE.start_main_~j~6 13) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {13846#(= (+ ULTIMATE.start_main_~j~6 12) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:01:12,342 INFO L273 TraceCheckUtils]: 34: Hoare triple {13844#(= (+ ULTIMATE.start_main_~j~6 14) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {13845#(= (+ ULTIMATE.start_main_~j~6 13) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:01:12,342 INFO L273 TraceCheckUtils]: 33: Hoare triple {13843#(= (+ ULTIMATE.start_main_~j~6 15) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {13844#(= (+ ULTIMATE.start_main_~j~6 14) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:01:12,343 INFO L273 TraceCheckUtils]: 32: Hoare triple {13842#(= (+ ULTIMATE.start_main_~j~6 16) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {13843#(= (+ ULTIMATE.start_main_~j~6 15) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:01:12,344 INFO L273 TraceCheckUtils]: 31: Hoare triple {13841#(= (+ ULTIMATE.start_main_~j~6 17) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {13842#(= (+ ULTIMATE.start_main_~j~6 16) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:01:12,345 INFO L273 TraceCheckUtils]: 30: Hoare triple {13840#(= (+ ULTIMATE.start_main_~j~6 18) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {13841#(= (+ ULTIMATE.start_main_~j~6 17) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:01:12,346 INFO L273 TraceCheckUtils]: 29: Hoare triple {13839#(= (+ ULTIMATE.start_main_~j~6 19) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {13840#(= (+ ULTIMATE.start_main_~j~6 18) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:01:12,347 INFO L273 TraceCheckUtils]: 28: Hoare triple {13838#(= (+ ULTIMATE.start_main_~j~6 20) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {13839#(= (+ ULTIMATE.start_main_~j~6 19) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:01:12,348 INFO L273 TraceCheckUtils]: 27: Hoare triple {13837#(= (+ ULTIMATE.start_main_~j~6 21) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {13838#(= (+ ULTIMATE.start_main_~j~6 20) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:01:12,349 INFO L273 TraceCheckUtils]: 26: Hoare triple {13836#(= (+ ULTIMATE.start_main_~j~6 22) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {13837#(= (+ ULTIMATE.start_main_~j~6 21) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:01:12,350 INFO L273 TraceCheckUtils]: 25: Hoare triple {13835#(= (+ ULTIMATE.start_main_~j~6 23) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {13836#(= (+ ULTIMATE.start_main_~j~6 22) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:01:12,351 INFO L273 TraceCheckUtils]: 24: Hoare triple {13834#(or (<= (+ ULTIMATE.start_main_~i~6 1) ULTIMATE.start_main_~MAX~6) (= 23 ULTIMATE.start_main_~MAX~6))} assume !(main_~i~6 < main_~MAX~6);main_~str1~6 := main_~str1~6[main_~MAX~6 - 1 := 0];main_~j~6 := 0;main_~i~6 := main_~MAX~6 - 1; {13835#(= (+ ULTIMATE.start_main_~j~6 23) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:01:12,352 INFO L273 TraceCheckUtils]: 23: Hoare triple {13928#(and (<= 22 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 22))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {13834#(or (<= (+ ULTIMATE.start_main_~i~6 1) ULTIMATE.start_main_~MAX~6) (= 23 ULTIMATE.start_main_~MAX~6))} is VALID [2019-01-31 15:01:12,353 INFO L273 TraceCheckUtils]: 22: Hoare triple {13832#(and (<= ULTIMATE.start_main_~i~6 21) (<= 21 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {13928#(and (<= 22 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 22))} is VALID [2019-01-31 15:01:12,354 INFO L273 TraceCheckUtils]: 21: Hoare triple {13831#(and (<= ULTIMATE.start_main_~i~6 20) (<= 20 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {13832#(and (<= ULTIMATE.start_main_~i~6 21) (<= 21 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:01:12,355 INFO L273 TraceCheckUtils]: 20: Hoare triple {13830#(and (<= ULTIMATE.start_main_~i~6 19) (<= 19 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {13831#(and (<= ULTIMATE.start_main_~i~6 20) (<= 20 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:01:12,356 INFO L273 TraceCheckUtils]: 19: Hoare triple {13829#(and (<= ULTIMATE.start_main_~i~6 18) (<= 18 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {13830#(and (<= ULTIMATE.start_main_~i~6 19) (<= 19 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:01:12,357 INFO L273 TraceCheckUtils]: 18: Hoare triple {13828#(and (<= ULTIMATE.start_main_~i~6 17) (<= 17 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {13829#(and (<= ULTIMATE.start_main_~i~6 18) (<= 18 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:01:12,358 INFO L273 TraceCheckUtils]: 17: Hoare triple {13827#(and (<= 16 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 16))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {13828#(and (<= ULTIMATE.start_main_~i~6 17) (<= 17 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:01:12,359 INFO L273 TraceCheckUtils]: 16: Hoare triple {13826#(and (<= 15 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 15))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {13827#(and (<= 16 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 16))} is VALID [2019-01-31 15:01:12,360 INFO L273 TraceCheckUtils]: 15: Hoare triple {13825#(and (<= ULTIMATE.start_main_~i~6 14) (<= 14 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {13826#(and (<= 15 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 15))} is VALID [2019-01-31 15:01:12,360 INFO L273 TraceCheckUtils]: 14: Hoare triple {13824#(and (<= ULTIMATE.start_main_~i~6 13) (<= 13 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {13825#(and (<= ULTIMATE.start_main_~i~6 14) (<= 14 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:01:12,361 INFO L273 TraceCheckUtils]: 13: Hoare triple {13823#(and (<= ULTIMATE.start_main_~i~6 12) (<= 12 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {13824#(and (<= ULTIMATE.start_main_~i~6 13) (<= 13 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:01:12,362 INFO L273 TraceCheckUtils]: 12: Hoare triple {13822#(and (<= 11 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 11))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {13823#(and (<= ULTIMATE.start_main_~i~6 12) (<= 12 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:01:12,363 INFO L273 TraceCheckUtils]: 11: Hoare triple {13821#(and (<= ULTIMATE.start_main_~i~6 10) (<= 10 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {13822#(and (<= 11 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 11))} is VALID [2019-01-31 15:01:12,364 INFO L273 TraceCheckUtils]: 10: Hoare triple {13820#(and (<= ULTIMATE.start_main_~i~6 9) (<= 9 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {13821#(and (<= ULTIMATE.start_main_~i~6 10) (<= 10 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:01:12,365 INFO L273 TraceCheckUtils]: 9: Hoare triple {13819#(and (<= ULTIMATE.start_main_~i~6 8) (<= 8 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {13820#(and (<= ULTIMATE.start_main_~i~6 9) (<= 9 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:01:12,366 INFO L273 TraceCheckUtils]: 8: Hoare triple {13818#(and (<= 7 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 7))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {13819#(and (<= ULTIMATE.start_main_~i~6 8) (<= 8 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:01:12,367 INFO L273 TraceCheckUtils]: 7: Hoare triple {13817#(and (<= ULTIMATE.start_main_~i~6 6) (<= 6 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {13818#(and (<= 7 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 7))} is VALID [2019-01-31 15:01:12,368 INFO L273 TraceCheckUtils]: 6: Hoare triple {13816#(and (<= 5 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 5))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {13817#(and (<= ULTIMATE.start_main_~i~6 6) (<= 6 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:01:12,369 INFO L273 TraceCheckUtils]: 5: Hoare triple {13815#(and (<= ULTIMATE.start_main_~i~6 4) (<= 4 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {13816#(and (<= 5 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 5))} is VALID [2019-01-31 15:01:12,370 INFO L273 TraceCheckUtils]: 4: Hoare triple {13814#(and (<= 3 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 3))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {13815#(and (<= ULTIMATE.start_main_~i~6 4) (<= 4 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:01:12,371 INFO L273 TraceCheckUtils]: 3: Hoare triple {13813#(and (<= ULTIMATE.start_main_~i~6 2) (<= 2 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {13814#(and (<= 3 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 3))} is VALID [2019-01-31 15:01:12,372 INFO L273 TraceCheckUtils]: 2: Hoare triple {13812#(and (<= ULTIMATE.start_main_~i~6 1) (<= 1 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {13813#(and (<= ULTIMATE.start_main_~i~6 2) (<= 2 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:01:12,373 INFO L273 TraceCheckUtils]: 1: Hoare triple {13811#(and (<= ULTIMATE.start_main_~i~6 0) (<= 0 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {13812#(and (<= ULTIMATE.start_main_~i~6 1) (<= 1 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:01:12,373 INFO L273 TraceCheckUtils]: 0: Hoare triple {13809#true} havoc main_#res;havoc main_#t~nondet0, main_#t~nondet2, main_#t~post1, main_#t~post4, main_#t~post3, main_#t~post6, main_#t~post5, main_~MAX~6, main_~str1~6, main_~str2~6, main_~cont~6, main_~i~6, main_~j~6;main_~MAX~6 := (if main_#t~nondet0 % 4294967296 % 4294967296 <= 2147483647 then main_#t~nondet0 % 4294967296 % 4294967296 else main_#t~nondet0 % 4294967296 % 4294967296 - 4294967296);havoc main_#t~nondet0;havoc main_~str1~6;havoc main_~str2~6;havoc main_~cont~6;havoc main_~i~6;havoc main_~j~6;main_~cont~6 := 0;main_~i~6 := 0; {13811#(and (<= ULTIMATE.start_main_~i~6 0) (<= 0 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:01:12,378 INFO L134 CoverageAnalysis]: Checked inductivity of 552 backedges. 0 proven. 552 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-31 15:01:12,398 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-01-31 15:01:12,398 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [49, 49, 49] total 75 [2019-01-31 15:01:12,398 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-01-31 15:01:12,399 INFO L78 Accepts]: Start accepts. Automaton has 76 states. Word has length 50 [2019-01-31 15:01:12,399 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-01-31 15:01:12,399 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 76 states. [2019-01-31 15:01:12,472 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 77 edges. 77 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-01-31 15:01:12,472 INFO L459 AbstractCegarLoop]: Interpolant automaton has 76 states [2019-01-31 15:01:12,473 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 76 interpolants. [2019-01-31 15:01:12,473 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=223, Invalid=5477, Unknown=0, NotChecked=0, Total=5700 [2019-01-31 15:01:12,473 INFO L87 Difference]: Start difference. First operand 51 states and 52 transitions. Second operand 76 states. [2019-01-31 15:01:22,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 15:01:22,132 INFO L93 Difference]: Finished difference Result 78 states and 80 transitions. [2019-01-31 15:01:22,132 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2019-01-31 15:01:22,132 INFO L78 Accepts]: Start accepts. Automaton has 76 states. Word has length 50 [2019-01-31 15:01:22,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-31 15:01:22,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76 states. [2019-01-31 15:01:22,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 58 transitions. [2019-01-31 15:01:22,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76 states. [2019-01-31 15:01:22,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 58 transitions. [2019-01-31 15:01:22,134 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 53 states and 58 transitions. [2019-01-31 15:01:22,194 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 58 edges. 58 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-01-31 15:01:22,196 INFO L225 Difference]: With dead ends: 78 [2019-01-31 15:01:22,196 INFO L226 Difference]: Without dead ends: 52 [2019-01-31 15:01:22,197 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 173 GetRequests, 55 SyntacticMatches, 18 SemanticMatches, 100 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1665 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=472, Invalid=9830, Unknown=0, NotChecked=0, Total=10302 [2019-01-31 15:01:22,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2019-01-31 15:01:23,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2019-01-31 15:01:23,162 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-01-31 15:01:23,162 INFO L82 GeneralOperation]: Start isEquivalent. First operand 52 states. Second operand 52 states. [2019-01-31 15:01:23,162 INFO L74 IsIncluded]: Start isIncluded. First operand 52 states. Second operand 52 states. [2019-01-31 15:01:23,163 INFO L87 Difference]: Start difference. First operand 52 states. Second operand 52 states. [2019-01-31 15:01:23,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 15:01:23,164 INFO L93 Difference]: Finished difference Result 52 states and 53 transitions. [2019-01-31 15:01:23,164 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 53 transitions. [2019-01-31 15:01:23,164 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-31 15:01:23,165 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-01-31 15:01:23,165 INFO L74 IsIncluded]: Start isIncluded. First operand 52 states. Second operand 52 states. [2019-01-31 15:01:23,165 INFO L87 Difference]: Start difference. First operand 52 states. Second operand 52 states. [2019-01-31 15:01:23,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 15:01:23,166 INFO L93 Difference]: Finished difference Result 52 states and 53 transitions. [2019-01-31 15:01:23,166 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 53 transitions. [2019-01-31 15:01:23,167 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-31 15:01:23,167 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-01-31 15:01:23,167 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-01-31 15:01:23,167 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-01-31 15:01:23,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2019-01-31 15:01:23,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 53 transitions. [2019-01-31 15:01:23,168 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 53 transitions. Word has length 50 [2019-01-31 15:01:23,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-31 15:01:23,168 INFO L480 AbstractCegarLoop]: Abstraction has 52 states and 53 transitions. [2019-01-31 15:01:23,168 INFO L481 AbstractCegarLoop]: Interpolant automaton has 76 states. [2019-01-31 15:01:23,168 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 53 transitions. [2019-01-31 15:01:23,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2019-01-31 15:01:23,169 INFO L394 BasicCegarLoop]: Found error trace [2019-01-31 15:01:23,169 INFO L402 BasicCegarLoop]: trace histogram [24, 23, 1, 1, 1, 1] [2019-01-31 15:01:23,169 INFO L423 AbstractCegarLoop]: === Iteration 37 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2019-01-31 15:01:23,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-31 15:01:23,170 INFO L82 PathProgramCache]: Analyzing trace with hash -596041908, now seen corresponding path program 35 times [2019-01-31 15:01:23,170 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-01-31 15:01:23,170 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-31 15:01:23,170 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-31 15:01:23,170 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-31 15:01:23,171 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-01-31 15:01:23,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-31 15:01:24,128 INFO L273 TraceCheckUtils]: 0: Hoare triple {14592#true} havoc main_#res;havoc main_#t~nondet0, main_#t~nondet2, main_#t~post1, main_#t~post4, main_#t~post3, main_#t~post6, main_#t~post5, main_~MAX~6, main_~str1~6, main_~str2~6, main_~cont~6, main_~i~6, main_~j~6;main_~MAX~6 := (if main_#t~nondet0 % 4294967296 % 4294967296 <= 2147483647 then main_#t~nondet0 % 4294967296 % 4294967296 else main_#t~nondet0 % 4294967296 % 4294967296 - 4294967296);havoc main_#t~nondet0;havoc main_~str1~6;havoc main_~str2~6;havoc main_~cont~6;havoc main_~i~6;havoc main_~j~6;main_~cont~6 := 0;main_~i~6 := 0; {14594#(<= 0 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:01:24,129 INFO L273 TraceCheckUtils]: 1: Hoare triple {14594#(<= 0 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {14595#(<= 1 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:01:24,130 INFO L273 TraceCheckUtils]: 2: Hoare triple {14595#(<= 1 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {14596#(<= 2 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:01:24,131 INFO L273 TraceCheckUtils]: 3: Hoare triple {14596#(<= 2 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {14597#(<= 3 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:01:24,132 INFO L273 TraceCheckUtils]: 4: Hoare triple {14597#(<= 3 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {14598#(<= 4 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:01:24,132 INFO L273 TraceCheckUtils]: 5: Hoare triple {14598#(<= 4 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {14599#(<= 5 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:01:24,133 INFO L273 TraceCheckUtils]: 6: Hoare triple {14599#(<= 5 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {14600#(<= 6 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:01:24,134 INFO L273 TraceCheckUtils]: 7: Hoare triple {14600#(<= 6 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {14601#(<= 7 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:01:24,135 INFO L273 TraceCheckUtils]: 8: Hoare triple {14601#(<= 7 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {14602#(<= 8 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:01:24,136 INFO L273 TraceCheckUtils]: 9: Hoare triple {14602#(<= 8 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {14603#(<= 9 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:01:24,137 INFO L273 TraceCheckUtils]: 10: Hoare triple {14603#(<= 9 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {14604#(<= 10 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:01:24,138 INFO L273 TraceCheckUtils]: 11: Hoare triple {14604#(<= 10 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {14605#(<= 11 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:01:24,138 INFO L273 TraceCheckUtils]: 12: Hoare triple {14605#(<= 11 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {14606#(<= 12 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:01:24,139 INFO L273 TraceCheckUtils]: 13: Hoare triple {14606#(<= 12 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {14607#(<= 13 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:01:24,140 INFO L273 TraceCheckUtils]: 14: Hoare triple {14607#(<= 13 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {14608#(<= 14 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:01:24,141 INFO L273 TraceCheckUtils]: 15: Hoare triple {14608#(<= 14 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {14609#(<= 15 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:01:24,142 INFO L273 TraceCheckUtils]: 16: Hoare triple {14609#(<= 15 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {14610#(<= 16 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:01:24,143 INFO L273 TraceCheckUtils]: 17: Hoare triple {14610#(<= 16 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {14611#(<= 17 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:01:24,144 INFO L273 TraceCheckUtils]: 18: Hoare triple {14611#(<= 17 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {14612#(<= 18 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:01:24,145 INFO L273 TraceCheckUtils]: 19: Hoare triple {14612#(<= 18 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {14613#(<= 19 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:01:24,145 INFO L273 TraceCheckUtils]: 20: Hoare triple {14613#(<= 19 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {14614#(<= 20 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:01:24,146 INFO L273 TraceCheckUtils]: 21: Hoare triple {14614#(<= 20 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {14615#(<= 21 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:01:24,147 INFO L273 TraceCheckUtils]: 22: Hoare triple {14615#(<= 21 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {14616#(<= 22 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:01:24,148 INFO L273 TraceCheckUtils]: 23: Hoare triple {14616#(<= 22 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {14617#(<= 23 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:01:24,149 INFO L273 TraceCheckUtils]: 24: Hoare triple {14617#(<= 23 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {14618#(<= 24 ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:01:24,150 INFO L273 TraceCheckUtils]: 25: Hoare triple {14618#(<= 24 ULTIMATE.start_main_~MAX~6)} assume !(main_~i~6 < main_~MAX~6);main_~str1~6 := main_~str1~6[main_~MAX~6 - 1 := 0];main_~j~6 := 0;main_~i~6 := main_~MAX~6 - 1; {14617#(<= 23 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:01:24,151 INFO L273 TraceCheckUtils]: 26: Hoare triple {14617#(<= 23 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {14616#(<= 22 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:01:24,152 INFO L273 TraceCheckUtils]: 27: Hoare triple {14616#(<= 22 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {14615#(<= 21 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:01:24,153 INFO L273 TraceCheckUtils]: 28: Hoare triple {14615#(<= 21 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {14614#(<= 20 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:01:24,153 INFO L273 TraceCheckUtils]: 29: Hoare triple {14614#(<= 20 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {14613#(<= 19 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:01:24,154 INFO L273 TraceCheckUtils]: 30: Hoare triple {14613#(<= 19 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {14612#(<= 18 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:01:24,155 INFO L273 TraceCheckUtils]: 31: Hoare triple {14612#(<= 18 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {14611#(<= 17 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:01:24,156 INFO L273 TraceCheckUtils]: 32: Hoare triple {14611#(<= 17 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {14610#(<= 16 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:01:24,157 INFO L273 TraceCheckUtils]: 33: Hoare triple {14610#(<= 16 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {14609#(<= 15 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:01:24,158 INFO L273 TraceCheckUtils]: 34: Hoare triple {14609#(<= 15 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {14608#(<= 14 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:01:24,159 INFO L273 TraceCheckUtils]: 35: Hoare triple {14608#(<= 14 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {14607#(<= 13 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:01:24,160 INFO L273 TraceCheckUtils]: 36: Hoare triple {14607#(<= 13 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {14606#(<= 12 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:01:24,160 INFO L273 TraceCheckUtils]: 37: Hoare triple {14606#(<= 12 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {14605#(<= 11 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:01:24,161 INFO L273 TraceCheckUtils]: 38: Hoare triple {14605#(<= 11 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {14604#(<= 10 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:01:24,162 INFO L273 TraceCheckUtils]: 39: Hoare triple {14604#(<= 10 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {14603#(<= 9 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:01:24,163 INFO L273 TraceCheckUtils]: 40: Hoare triple {14603#(<= 9 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {14602#(<= 8 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:01:24,164 INFO L273 TraceCheckUtils]: 41: Hoare triple {14602#(<= 8 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {14601#(<= 7 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:01:24,165 INFO L273 TraceCheckUtils]: 42: Hoare triple {14601#(<= 7 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {14600#(<= 6 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:01:24,166 INFO L273 TraceCheckUtils]: 43: Hoare triple {14600#(<= 6 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {14599#(<= 5 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:01:24,167 INFO L273 TraceCheckUtils]: 44: Hoare triple {14599#(<= 5 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {14598#(<= 4 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:01:24,167 INFO L273 TraceCheckUtils]: 45: Hoare triple {14598#(<= 4 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {14597#(<= 3 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:01:24,168 INFO L273 TraceCheckUtils]: 46: Hoare triple {14597#(<= 3 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {14596#(<= 2 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:01:24,169 INFO L273 TraceCheckUtils]: 47: Hoare triple {14596#(<= 2 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {14595#(<= 1 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:01:24,170 INFO L273 TraceCheckUtils]: 48: Hoare triple {14595#(<= 1 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {14594#(<= 0 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:01:24,171 INFO L273 TraceCheckUtils]: 49: Hoare triple {14594#(<= 0 ULTIMATE.start_main_~i~6)} assume !(main_~i~6 >= 0);main_~j~6 := main_~MAX~6 - 1;main_~i~6 := 0;assume !!(main_~i~6 < main_~MAX~6);__VERIFIER_assert_#in~cond := (if main_~str1~6[main_~i~6] == main_~str2~6[main_~j~6] then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond;assume __VERIFIER_assert_~cond == 0;assume !false; {14593#false} is VALID [2019-01-31 15:01:24,171 INFO L273 TraceCheckUtils]: 50: Hoare triple {14593#false} assume !false; {14593#false} is VALID [2019-01-31 15:01:24,174 INFO L134 CoverageAnalysis]: Checked inductivity of 576 backedges. 276 proven. 300 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-31 15:01:24,174 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-31 15:01:24,174 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-01-31 15:01:24,174 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-01-31 15:01:24,174 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-01-31 15:01:24,174 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-31 15:01:24,174 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 36 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 36 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-01-31 15:01:24,182 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2019-01-31 15:01:24,183 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST2 (IT: FPandBP) [2019-01-31 15:01:24,279 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 13 check-sat command(s) [2019-01-31 15:01:24,279 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-01-31 15:01:24,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-31 15:01:24,302 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-31 15:01:24,533 INFO L273 TraceCheckUtils]: 0: Hoare triple {14592#true} havoc main_#res;havoc main_#t~nondet0, main_#t~nondet2, main_#t~post1, main_#t~post4, main_#t~post3, main_#t~post6, main_#t~post5, main_~MAX~6, main_~str1~6, main_~str2~6, main_~cont~6, main_~i~6, main_~j~6;main_~MAX~6 := (if main_#t~nondet0 % 4294967296 % 4294967296 <= 2147483647 then main_#t~nondet0 % 4294967296 % 4294967296 else main_#t~nondet0 % 4294967296 % 4294967296 - 4294967296);havoc main_#t~nondet0;havoc main_~str1~6;havoc main_~str2~6;havoc main_~cont~6;havoc main_~i~6;havoc main_~j~6;main_~cont~6 := 0;main_~i~6 := 0; {14594#(<= 0 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:01:24,535 INFO L273 TraceCheckUtils]: 1: Hoare triple {14594#(<= 0 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {14595#(<= 1 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:01:24,535 INFO L273 TraceCheckUtils]: 2: Hoare triple {14595#(<= 1 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {14596#(<= 2 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:01:24,536 INFO L273 TraceCheckUtils]: 3: Hoare triple {14596#(<= 2 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {14597#(<= 3 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:01:24,537 INFO L273 TraceCheckUtils]: 4: Hoare triple {14597#(<= 3 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {14598#(<= 4 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:01:24,538 INFO L273 TraceCheckUtils]: 5: Hoare triple {14598#(<= 4 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {14599#(<= 5 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:01:24,539 INFO L273 TraceCheckUtils]: 6: Hoare triple {14599#(<= 5 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {14600#(<= 6 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:01:24,540 INFO L273 TraceCheckUtils]: 7: Hoare triple {14600#(<= 6 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {14601#(<= 7 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:01:24,541 INFO L273 TraceCheckUtils]: 8: Hoare triple {14601#(<= 7 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {14602#(<= 8 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:01:24,542 INFO L273 TraceCheckUtils]: 9: Hoare triple {14602#(<= 8 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {14603#(<= 9 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:01:24,542 INFO L273 TraceCheckUtils]: 10: Hoare triple {14603#(<= 9 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {14604#(<= 10 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:01:24,543 INFO L273 TraceCheckUtils]: 11: Hoare triple {14604#(<= 10 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {14605#(<= 11 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:01:24,544 INFO L273 TraceCheckUtils]: 12: Hoare triple {14605#(<= 11 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {14606#(<= 12 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:01:24,545 INFO L273 TraceCheckUtils]: 13: Hoare triple {14606#(<= 12 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {14607#(<= 13 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:01:24,546 INFO L273 TraceCheckUtils]: 14: Hoare triple {14607#(<= 13 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {14608#(<= 14 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:01:24,547 INFO L273 TraceCheckUtils]: 15: Hoare triple {14608#(<= 14 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {14609#(<= 15 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:01:24,548 INFO L273 TraceCheckUtils]: 16: Hoare triple {14609#(<= 15 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {14610#(<= 16 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:01:24,549 INFO L273 TraceCheckUtils]: 17: Hoare triple {14610#(<= 16 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {14611#(<= 17 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:01:24,549 INFO L273 TraceCheckUtils]: 18: Hoare triple {14611#(<= 17 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {14612#(<= 18 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:01:24,550 INFO L273 TraceCheckUtils]: 19: Hoare triple {14612#(<= 18 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {14613#(<= 19 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:01:24,551 INFO L273 TraceCheckUtils]: 20: Hoare triple {14613#(<= 19 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {14614#(<= 20 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:01:24,552 INFO L273 TraceCheckUtils]: 21: Hoare triple {14614#(<= 20 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {14615#(<= 21 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:01:24,553 INFO L273 TraceCheckUtils]: 22: Hoare triple {14615#(<= 21 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {14616#(<= 22 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:01:24,554 INFO L273 TraceCheckUtils]: 23: Hoare triple {14616#(<= 22 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {14617#(<= 23 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:01:24,555 INFO L273 TraceCheckUtils]: 24: Hoare triple {14617#(<= 23 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {14618#(<= 24 ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:01:24,556 INFO L273 TraceCheckUtils]: 25: Hoare triple {14618#(<= 24 ULTIMATE.start_main_~MAX~6)} assume !(main_~i~6 < main_~MAX~6);main_~str1~6 := main_~str1~6[main_~MAX~6 - 1 := 0];main_~j~6 := 0;main_~i~6 := main_~MAX~6 - 1; {14617#(<= 23 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:01:24,556 INFO L273 TraceCheckUtils]: 26: Hoare triple {14617#(<= 23 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {14616#(<= 22 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:01:24,557 INFO L273 TraceCheckUtils]: 27: Hoare triple {14616#(<= 22 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {14615#(<= 21 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:01:24,558 INFO L273 TraceCheckUtils]: 28: Hoare triple {14615#(<= 21 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {14614#(<= 20 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:01:24,559 INFO L273 TraceCheckUtils]: 29: Hoare triple {14614#(<= 20 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {14613#(<= 19 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:01:24,569 INFO L273 TraceCheckUtils]: 30: Hoare triple {14613#(<= 19 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {14612#(<= 18 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:01:24,571 INFO L273 TraceCheckUtils]: 31: Hoare triple {14612#(<= 18 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {14611#(<= 17 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:01:24,571 INFO L273 TraceCheckUtils]: 32: Hoare triple {14611#(<= 17 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {14610#(<= 16 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:01:24,572 INFO L273 TraceCheckUtils]: 33: Hoare triple {14610#(<= 16 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {14609#(<= 15 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:01:24,572 INFO L273 TraceCheckUtils]: 34: Hoare triple {14609#(<= 15 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {14608#(<= 14 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:01:24,576 INFO L273 TraceCheckUtils]: 35: Hoare triple {14608#(<= 14 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {14607#(<= 13 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:01:24,576 INFO L273 TraceCheckUtils]: 36: Hoare triple {14607#(<= 13 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {14606#(<= 12 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:01:24,577 INFO L273 TraceCheckUtils]: 37: Hoare triple {14606#(<= 12 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {14605#(<= 11 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:01:24,577 INFO L273 TraceCheckUtils]: 38: Hoare triple {14605#(<= 11 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {14604#(<= 10 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:01:24,578 INFO L273 TraceCheckUtils]: 39: Hoare triple {14604#(<= 10 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {14603#(<= 9 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:01:24,579 INFO L273 TraceCheckUtils]: 40: Hoare triple {14603#(<= 9 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {14602#(<= 8 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:01:24,580 INFO L273 TraceCheckUtils]: 41: Hoare triple {14602#(<= 8 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {14601#(<= 7 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:01:24,580 INFO L273 TraceCheckUtils]: 42: Hoare triple {14601#(<= 7 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {14600#(<= 6 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:01:24,581 INFO L273 TraceCheckUtils]: 43: Hoare triple {14600#(<= 6 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {14599#(<= 5 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:01:24,582 INFO L273 TraceCheckUtils]: 44: Hoare triple {14599#(<= 5 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {14598#(<= 4 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:01:24,583 INFO L273 TraceCheckUtils]: 45: Hoare triple {14598#(<= 4 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {14597#(<= 3 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:01:24,584 INFO L273 TraceCheckUtils]: 46: Hoare triple {14597#(<= 3 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {14596#(<= 2 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:01:24,585 INFO L273 TraceCheckUtils]: 47: Hoare triple {14596#(<= 2 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {14595#(<= 1 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:01:24,586 INFO L273 TraceCheckUtils]: 48: Hoare triple {14595#(<= 1 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {14594#(<= 0 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:01:24,586 INFO L273 TraceCheckUtils]: 49: Hoare triple {14594#(<= 0 ULTIMATE.start_main_~i~6)} assume !(main_~i~6 >= 0);main_~j~6 := main_~MAX~6 - 1;main_~i~6 := 0;assume !!(main_~i~6 < main_~MAX~6);__VERIFIER_assert_#in~cond := (if main_~str1~6[main_~i~6] == main_~str2~6[main_~j~6] then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond;assume __VERIFIER_assert_~cond == 0;assume !false; {14593#false} is VALID [2019-01-31 15:01:24,586 INFO L273 TraceCheckUtils]: 50: Hoare triple {14593#false} assume !false; {14593#false} is VALID [2019-01-31 15:01:24,589 INFO L134 CoverageAnalysis]: Checked inductivity of 576 backedges. 276 proven. 300 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-31 15:01:24,590 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2019-01-31 15:01:25,324 INFO L273 TraceCheckUtils]: 50: Hoare triple {14593#false} assume !false; {14593#false} is VALID [2019-01-31 15:01:25,325 INFO L273 TraceCheckUtils]: 49: Hoare triple {14594#(<= 0 ULTIMATE.start_main_~i~6)} assume !(main_~i~6 >= 0);main_~j~6 := main_~MAX~6 - 1;main_~i~6 := 0;assume !!(main_~i~6 < main_~MAX~6);__VERIFIER_assert_#in~cond := (if main_~str1~6[main_~i~6] == main_~str2~6[main_~j~6] then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond;assume __VERIFIER_assert_~cond == 0;assume !false; {14593#false} is VALID [2019-01-31 15:01:25,325 INFO L273 TraceCheckUtils]: 48: Hoare triple {14595#(<= 1 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {14594#(<= 0 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:01:25,326 INFO L273 TraceCheckUtils]: 47: Hoare triple {14596#(<= 2 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {14595#(<= 1 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:01:25,326 INFO L273 TraceCheckUtils]: 46: Hoare triple {14597#(<= 3 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {14596#(<= 2 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:01:25,327 INFO L273 TraceCheckUtils]: 45: Hoare triple {14598#(<= 4 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {14597#(<= 3 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:01:25,328 INFO L273 TraceCheckUtils]: 44: Hoare triple {14599#(<= 5 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {14598#(<= 4 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:01:25,329 INFO L273 TraceCheckUtils]: 43: Hoare triple {14600#(<= 6 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {14599#(<= 5 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:01:25,330 INFO L273 TraceCheckUtils]: 42: Hoare triple {14601#(<= 7 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {14600#(<= 6 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:01:25,331 INFO L273 TraceCheckUtils]: 41: Hoare triple {14602#(<= 8 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {14601#(<= 7 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:01:25,332 INFO L273 TraceCheckUtils]: 40: Hoare triple {14603#(<= 9 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {14602#(<= 8 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:01:25,333 INFO L273 TraceCheckUtils]: 39: Hoare triple {14604#(<= 10 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {14603#(<= 9 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:01:25,333 INFO L273 TraceCheckUtils]: 38: Hoare triple {14605#(<= 11 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {14604#(<= 10 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:01:25,334 INFO L273 TraceCheckUtils]: 37: Hoare triple {14606#(<= 12 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {14605#(<= 11 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:01:25,335 INFO L273 TraceCheckUtils]: 36: Hoare triple {14607#(<= 13 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {14606#(<= 12 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:01:25,336 INFO L273 TraceCheckUtils]: 35: Hoare triple {14608#(<= 14 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {14607#(<= 13 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:01:25,337 INFO L273 TraceCheckUtils]: 34: Hoare triple {14609#(<= 15 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {14608#(<= 14 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:01:25,338 INFO L273 TraceCheckUtils]: 33: Hoare triple {14610#(<= 16 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {14609#(<= 15 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:01:25,339 INFO L273 TraceCheckUtils]: 32: Hoare triple {14611#(<= 17 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {14610#(<= 16 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:01:25,340 INFO L273 TraceCheckUtils]: 31: Hoare triple {14612#(<= 18 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {14611#(<= 17 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:01:25,341 INFO L273 TraceCheckUtils]: 30: Hoare triple {14613#(<= 19 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {14612#(<= 18 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:01:25,341 INFO L273 TraceCheckUtils]: 29: Hoare triple {14614#(<= 20 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {14613#(<= 19 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:01:25,342 INFO L273 TraceCheckUtils]: 28: Hoare triple {14615#(<= 21 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {14614#(<= 20 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:01:25,343 INFO L273 TraceCheckUtils]: 27: Hoare triple {14616#(<= 22 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {14615#(<= 21 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:01:25,344 INFO L273 TraceCheckUtils]: 26: Hoare triple {14617#(<= 23 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {14616#(<= 22 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:01:25,345 INFO L273 TraceCheckUtils]: 25: Hoare triple {14618#(<= 24 ULTIMATE.start_main_~MAX~6)} assume !(main_~i~6 < main_~MAX~6);main_~str1~6 := main_~str1~6[main_~MAX~6 - 1 := 0];main_~j~6 := 0;main_~i~6 := main_~MAX~6 - 1; {14617#(<= 23 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:01:25,346 INFO L273 TraceCheckUtils]: 24: Hoare triple {14617#(<= 23 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {14618#(<= 24 ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:01:25,347 INFO L273 TraceCheckUtils]: 23: Hoare triple {14616#(<= 22 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {14617#(<= 23 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:01:25,348 INFO L273 TraceCheckUtils]: 22: Hoare triple {14615#(<= 21 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {14616#(<= 22 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:01:25,348 INFO L273 TraceCheckUtils]: 21: Hoare triple {14614#(<= 20 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {14615#(<= 21 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:01:25,349 INFO L273 TraceCheckUtils]: 20: Hoare triple {14613#(<= 19 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {14614#(<= 20 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:01:25,350 INFO L273 TraceCheckUtils]: 19: Hoare triple {14612#(<= 18 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {14613#(<= 19 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:01:25,351 INFO L273 TraceCheckUtils]: 18: Hoare triple {14611#(<= 17 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {14612#(<= 18 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:01:25,352 INFO L273 TraceCheckUtils]: 17: Hoare triple {14610#(<= 16 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {14611#(<= 17 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:01:25,353 INFO L273 TraceCheckUtils]: 16: Hoare triple {14609#(<= 15 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {14610#(<= 16 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:01:25,354 INFO L273 TraceCheckUtils]: 15: Hoare triple {14608#(<= 14 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {14609#(<= 15 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:01:25,354 INFO L273 TraceCheckUtils]: 14: Hoare triple {14607#(<= 13 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {14608#(<= 14 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:01:25,355 INFO L273 TraceCheckUtils]: 13: Hoare triple {14606#(<= 12 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {14607#(<= 13 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:01:25,356 INFO L273 TraceCheckUtils]: 12: Hoare triple {14605#(<= 11 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {14606#(<= 12 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:01:25,357 INFO L273 TraceCheckUtils]: 11: Hoare triple {14604#(<= 10 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {14605#(<= 11 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:01:25,358 INFO L273 TraceCheckUtils]: 10: Hoare triple {14603#(<= 9 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {14604#(<= 10 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:01:25,359 INFO L273 TraceCheckUtils]: 9: Hoare triple {14602#(<= 8 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {14603#(<= 9 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:01:25,360 INFO L273 TraceCheckUtils]: 8: Hoare triple {14601#(<= 7 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {14602#(<= 8 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:01:25,361 INFO L273 TraceCheckUtils]: 7: Hoare triple {14600#(<= 6 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {14601#(<= 7 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:01:25,361 INFO L273 TraceCheckUtils]: 6: Hoare triple {14599#(<= 5 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {14600#(<= 6 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:01:25,362 INFO L273 TraceCheckUtils]: 5: Hoare triple {14598#(<= 4 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {14599#(<= 5 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:01:25,363 INFO L273 TraceCheckUtils]: 4: Hoare triple {14597#(<= 3 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {14598#(<= 4 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:01:25,364 INFO L273 TraceCheckUtils]: 3: Hoare triple {14596#(<= 2 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {14597#(<= 3 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:01:25,365 INFO L273 TraceCheckUtils]: 2: Hoare triple {14595#(<= 1 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {14596#(<= 2 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:01:25,366 INFO L273 TraceCheckUtils]: 1: Hoare triple {14594#(<= 0 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {14595#(<= 1 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:01:25,367 INFO L273 TraceCheckUtils]: 0: Hoare triple {14592#true} havoc main_#res;havoc main_#t~nondet0, main_#t~nondet2, main_#t~post1, main_#t~post4, main_#t~post3, main_#t~post6, main_#t~post5, main_~MAX~6, main_~str1~6, main_~str2~6, main_~cont~6, main_~i~6, main_~j~6;main_~MAX~6 := (if main_#t~nondet0 % 4294967296 % 4294967296 <= 2147483647 then main_#t~nondet0 % 4294967296 % 4294967296 else main_#t~nondet0 % 4294967296 % 4294967296 - 4294967296);havoc main_#t~nondet0;havoc main_~str1~6;havoc main_~str2~6;havoc main_~cont~6;havoc main_~i~6;havoc main_~j~6;main_~cont~6 := 0;main_~i~6 := 0; {14594#(<= 0 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:01:25,370 INFO L134 CoverageAnalysis]: Checked inductivity of 576 backedges. 276 proven. 300 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-31 15:01:25,388 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-01-31 15:01:25,388 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 26, 26] total 26 [2019-01-31 15:01:25,389 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-01-31 15:01:25,389 INFO L78 Accepts]: Start accepts. Automaton has 27 states. Word has length 51 [2019-01-31 15:01:25,389 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-01-31 15:01:25,389 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 27 states. [2019-01-31 15:01:25,447 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 51 edges. 51 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-01-31 15:01:25,447 INFO L459 AbstractCegarLoop]: Interpolant automaton has 27 states [2019-01-31 15:01:25,447 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2019-01-31 15:01:25,447 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=327, Invalid=375, Unknown=0, NotChecked=0, Total=702 [2019-01-31 15:01:25,448 INFO L87 Difference]: Start difference. First operand 52 states and 53 transitions. Second operand 27 states. [2019-01-31 15:01:27,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 15:01:27,106 INFO L93 Difference]: Finished difference Result 55 states and 56 transitions. [2019-01-31 15:01:27,106 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2019-01-31 15:01:27,106 INFO L78 Accepts]: Start accepts. Automaton has 27 states. Word has length 51 [2019-01-31 15:01:27,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-31 15:01:27,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2019-01-31 15:01:27,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 56 transitions. [2019-01-31 15:01:27,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2019-01-31 15:01:27,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 56 transitions. [2019-01-31 15:01:27,108 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 51 states and 56 transitions. [2019-01-31 15:01:27,158 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 56 edges. 56 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-01-31 15:01:27,159 INFO L225 Difference]: With dead ends: 55 [2019-01-31 15:01:27,159 INFO L226 Difference]: Without dead ends: 53 [2019-01-31 15:01:27,159 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 174 GetRequests, 77 SyntacticMatches, 48 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1104 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=975, Invalid=1575, Unknown=0, NotChecked=0, Total=2550 [2019-01-31 15:01:27,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2019-01-31 15:01:28,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2019-01-31 15:01:28,149 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-01-31 15:01:28,149 INFO L82 GeneralOperation]: Start isEquivalent. First operand 53 states. Second operand 53 states. [2019-01-31 15:01:28,149 INFO L74 IsIncluded]: Start isIncluded. First operand 53 states. Second operand 53 states. [2019-01-31 15:01:28,150 INFO L87 Difference]: Start difference. First operand 53 states. Second operand 53 states. [2019-01-31 15:01:28,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 15:01:28,151 INFO L93 Difference]: Finished difference Result 53 states and 54 transitions. [2019-01-31 15:01:28,151 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 54 transitions. [2019-01-31 15:01:28,151 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-31 15:01:28,151 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-01-31 15:01:28,152 INFO L74 IsIncluded]: Start isIncluded. First operand 53 states. Second operand 53 states. [2019-01-31 15:01:28,152 INFO L87 Difference]: Start difference. First operand 53 states. Second operand 53 states. [2019-01-31 15:01:28,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 15:01:28,153 INFO L93 Difference]: Finished difference Result 53 states and 54 transitions. [2019-01-31 15:01:28,153 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 54 transitions. [2019-01-31 15:01:28,153 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-31 15:01:28,153 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-01-31 15:01:28,153 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-01-31 15:01:28,154 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-01-31 15:01:28,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2019-01-31 15:01:28,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 54 transitions. [2019-01-31 15:01:28,154 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 54 transitions. Word has length 51 [2019-01-31 15:01:28,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-31 15:01:28,155 INFO L480 AbstractCegarLoop]: Abstraction has 53 states and 54 transitions. [2019-01-31 15:01:28,155 INFO L481 AbstractCegarLoop]: Interpolant automaton has 27 states. [2019-01-31 15:01:28,155 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 54 transitions. [2019-01-31 15:01:28,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2019-01-31 15:01:28,155 INFO L394 BasicCegarLoop]: Found error trace [2019-01-31 15:01:28,155 INFO L402 BasicCegarLoop]: trace histogram [24, 24, 1, 1, 1, 1] [2019-01-31 15:01:28,155 INFO L423 AbstractCegarLoop]: === Iteration 38 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2019-01-31 15:01:28,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-31 15:01:28,156 INFO L82 PathProgramCache]: Analyzing trace with hash -1297428150, now seen corresponding path program 36 times [2019-01-31 15:01:28,156 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-01-31 15:01:28,156 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-31 15:01:28,156 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-01-31 15:01:28,156 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-31 15:01:28,157 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-01-31 15:01:28,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-31 15:01:30,349 INFO L273 TraceCheckUtils]: 0: Hoare triple {15286#true} havoc main_#res;havoc main_#t~nondet0, main_#t~nondet2, main_#t~post1, main_#t~post4, main_#t~post3, main_#t~post6, main_#t~post5, main_~MAX~6, main_~str1~6, main_~str2~6, main_~cont~6, main_~i~6, main_~j~6;main_~MAX~6 := (if main_#t~nondet0 % 4294967296 % 4294967296 <= 2147483647 then main_#t~nondet0 % 4294967296 % 4294967296 else main_#t~nondet0 % 4294967296 % 4294967296 - 4294967296);havoc main_#t~nondet0;havoc main_~str1~6;havoc main_~str2~6;havoc main_~cont~6;havoc main_~i~6;havoc main_~j~6;main_~cont~6 := 0;main_~i~6 := 0; {15288#(and (<= ULTIMATE.start_main_~i~6 0) (<= 0 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:01:30,350 INFO L273 TraceCheckUtils]: 1: Hoare triple {15288#(and (<= ULTIMATE.start_main_~i~6 0) (<= 0 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {15289#(and (<= ULTIMATE.start_main_~i~6 1) (<= 1 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:01:30,351 INFO L273 TraceCheckUtils]: 2: Hoare triple {15289#(and (<= ULTIMATE.start_main_~i~6 1) (<= 1 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {15290#(and (<= ULTIMATE.start_main_~i~6 2) (<= 2 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:01:30,351 INFO L273 TraceCheckUtils]: 3: Hoare triple {15290#(and (<= ULTIMATE.start_main_~i~6 2) (<= 2 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {15291#(and (<= 3 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 3))} is VALID [2019-01-31 15:01:30,352 INFO L273 TraceCheckUtils]: 4: Hoare triple {15291#(and (<= 3 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 3))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {15292#(and (<= ULTIMATE.start_main_~i~6 4) (<= 4 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:01:30,353 INFO L273 TraceCheckUtils]: 5: Hoare triple {15292#(and (<= ULTIMATE.start_main_~i~6 4) (<= 4 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {15293#(and (<= 5 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 5))} is VALID [2019-01-31 15:01:30,354 INFO L273 TraceCheckUtils]: 6: Hoare triple {15293#(and (<= 5 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 5))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {15294#(and (<= ULTIMATE.start_main_~i~6 6) (<= 6 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:01:30,355 INFO L273 TraceCheckUtils]: 7: Hoare triple {15294#(and (<= ULTIMATE.start_main_~i~6 6) (<= 6 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {15295#(and (<= 7 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 7))} is VALID [2019-01-31 15:01:30,355 INFO L273 TraceCheckUtils]: 8: Hoare triple {15295#(and (<= 7 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 7))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {15296#(and (<= ULTIMATE.start_main_~i~6 8) (<= 8 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:01:30,356 INFO L273 TraceCheckUtils]: 9: Hoare triple {15296#(and (<= ULTIMATE.start_main_~i~6 8) (<= 8 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {15297#(and (<= ULTIMATE.start_main_~i~6 9) (<= 9 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:01:30,357 INFO L273 TraceCheckUtils]: 10: Hoare triple {15297#(and (<= ULTIMATE.start_main_~i~6 9) (<= 9 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {15298#(and (<= ULTIMATE.start_main_~i~6 10) (<= 10 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:01:30,358 INFO L273 TraceCheckUtils]: 11: Hoare triple {15298#(and (<= ULTIMATE.start_main_~i~6 10) (<= 10 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {15299#(and (<= 11 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 11))} is VALID [2019-01-31 15:01:30,359 INFO L273 TraceCheckUtils]: 12: Hoare triple {15299#(and (<= 11 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 11))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {15300#(and (<= ULTIMATE.start_main_~i~6 12) (<= 12 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:01:30,360 INFO L273 TraceCheckUtils]: 13: Hoare triple {15300#(and (<= ULTIMATE.start_main_~i~6 12) (<= 12 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {15301#(and (<= ULTIMATE.start_main_~i~6 13) (<= 13 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:01:30,361 INFO L273 TraceCheckUtils]: 14: Hoare triple {15301#(and (<= ULTIMATE.start_main_~i~6 13) (<= 13 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {15302#(and (<= ULTIMATE.start_main_~i~6 14) (<= 14 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:01:30,362 INFO L273 TraceCheckUtils]: 15: Hoare triple {15302#(and (<= ULTIMATE.start_main_~i~6 14) (<= 14 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {15303#(and (<= 15 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 15))} is VALID [2019-01-31 15:01:30,363 INFO L273 TraceCheckUtils]: 16: Hoare triple {15303#(and (<= 15 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 15))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {15304#(and (<= 16 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 16))} is VALID [2019-01-31 15:01:30,364 INFO L273 TraceCheckUtils]: 17: Hoare triple {15304#(and (<= 16 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 16))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {15305#(and (<= ULTIMATE.start_main_~i~6 17) (<= 17 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:01:30,365 INFO L273 TraceCheckUtils]: 18: Hoare triple {15305#(and (<= ULTIMATE.start_main_~i~6 17) (<= 17 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {15306#(and (<= ULTIMATE.start_main_~i~6 18) (<= 18 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:01:30,366 INFO L273 TraceCheckUtils]: 19: Hoare triple {15306#(and (<= ULTIMATE.start_main_~i~6 18) (<= 18 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {15307#(and (<= ULTIMATE.start_main_~i~6 19) (<= 19 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:01:30,367 INFO L273 TraceCheckUtils]: 20: Hoare triple {15307#(and (<= ULTIMATE.start_main_~i~6 19) (<= 19 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {15308#(and (<= ULTIMATE.start_main_~i~6 20) (<= 20 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:01:30,368 INFO L273 TraceCheckUtils]: 21: Hoare triple {15308#(and (<= ULTIMATE.start_main_~i~6 20) (<= 20 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {15309#(and (<= ULTIMATE.start_main_~i~6 21) (<= 21 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:01:30,369 INFO L273 TraceCheckUtils]: 22: Hoare triple {15309#(and (<= ULTIMATE.start_main_~i~6 21) (<= 21 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {15310#(and (<= 22 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 22))} is VALID [2019-01-31 15:01:30,370 INFO L273 TraceCheckUtils]: 23: Hoare triple {15310#(and (<= 22 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 22))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {15311#(or (not (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 1))) (and (<= 23 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 23)))} is VALID [2019-01-31 15:01:30,371 INFO L273 TraceCheckUtils]: 24: Hoare triple {15311#(or (not (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 1))) (and (<= 23 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 23)))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {15312#(or (<= (+ ULTIMATE.start_main_~i~6 1) ULTIMATE.start_main_~MAX~6) (= 24 ULTIMATE.start_main_~MAX~6))} is VALID [2019-01-31 15:01:30,372 INFO L273 TraceCheckUtils]: 25: Hoare triple {15312#(or (<= (+ ULTIMATE.start_main_~i~6 1) ULTIMATE.start_main_~MAX~6) (= 24 ULTIMATE.start_main_~MAX~6))} assume !(main_~i~6 < main_~MAX~6);main_~str1~6 := main_~str1~6[main_~MAX~6 - 1 := 0];main_~j~6 := 0;main_~i~6 := main_~MAX~6 - 1; {15313#(= (+ ULTIMATE.start_main_~j~6 24) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:01:30,373 INFO L273 TraceCheckUtils]: 26: Hoare triple {15313#(= (+ ULTIMATE.start_main_~j~6 24) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {15314#(= (+ ULTIMATE.start_main_~j~6 23) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:01:30,374 INFO L273 TraceCheckUtils]: 27: Hoare triple {15314#(= (+ ULTIMATE.start_main_~j~6 23) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {15315#(= (+ ULTIMATE.start_main_~j~6 22) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:01:30,375 INFO L273 TraceCheckUtils]: 28: Hoare triple {15315#(= (+ ULTIMATE.start_main_~j~6 22) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {15316#(= (+ ULTIMATE.start_main_~j~6 21) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:01:30,376 INFO L273 TraceCheckUtils]: 29: Hoare triple {15316#(= (+ ULTIMATE.start_main_~j~6 21) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {15317#(= (+ ULTIMATE.start_main_~j~6 20) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:01:30,377 INFO L273 TraceCheckUtils]: 30: Hoare triple {15317#(= (+ ULTIMATE.start_main_~j~6 20) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {15318#(= (+ ULTIMATE.start_main_~j~6 19) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:01:30,378 INFO L273 TraceCheckUtils]: 31: Hoare triple {15318#(= (+ ULTIMATE.start_main_~j~6 19) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {15319#(= (+ ULTIMATE.start_main_~j~6 18) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:01:30,379 INFO L273 TraceCheckUtils]: 32: Hoare triple {15319#(= (+ ULTIMATE.start_main_~j~6 18) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {15320#(= (+ ULTIMATE.start_main_~j~6 17) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:01:30,380 INFO L273 TraceCheckUtils]: 33: Hoare triple {15320#(= (+ ULTIMATE.start_main_~j~6 17) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {15321#(= (+ ULTIMATE.start_main_~j~6 16) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:01:30,381 INFO L273 TraceCheckUtils]: 34: Hoare triple {15321#(= (+ ULTIMATE.start_main_~j~6 16) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {15322#(= (+ ULTIMATE.start_main_~j~6 15) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:01:30,382 INFO L273 TraceCheckUtils]: 35: Hoare triple {15322#(= (+ ULTIMATE.start_main_~j~6 15) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {15323#(= (+ ULTIMATE.start_main_~j~6 14) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:01:30,383 INFO L273 TraceCheckUtils]: 36: Hoare triple {15323#(= (+ ULTIMATE.start_main_~j~6 14) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {15324#(= (+ ULTIMATE.start_main_~j~6 13) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:01:30,384 INFO L273 TraceCheckUtils]: 37: Hoare triple {15324#(= (+ ULTIMATE.start_main_~j~6 13) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {15325#(= (+ ULTIMATE.start_main_~j~6 12) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:01:30,385 INFO L273 TraceCheckUtils]: 38: Hoare triple {15325#(= (+ ULTIMATE.start_main_~j~6 12) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {15326#(= (+ ULTIMATE.start_main_~j~6 11) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:01:30,386 INFO L273 TraceCheckUtils]: 39: Hoare triple {15326#(= (+ ULTIMATE.start_main_~j~6 11) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {15327#(= (+ ULTIMATE.start_main_~j~6 10) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:01:30,386 INFO L273 TraceCheckUtils]: 40: Hoare triple {15327#(= (+ ULTIMATE.start_main_~j~6 10) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {15328#(= (+ ULTIMATE.start_main_~j~6 9) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:01:30,387 INFO L273 TraceCheckUtils]: 41: Hoare triple {15328#(= (+ ULTIMATE.start_main_~j~6 9) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {15329#(= (+ ULTIMATE.start_main_~j~6 8) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:01:30,388 INFO L273 TraceCheckUtils]: 42: Hoare triple {15329#(= (+ ULTIMATE.start_main_~j~6 8) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {15330#(= (+ ULTIMATE.start_main_~j~6 7) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:01:30,389 INFO L273 TraceCheckUtils]: 43: Hoare triple {15330#(= (+ ULTIMATE.start_main_~j~6 7) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {15331#(= (+ ULTIMATE.start_main_~j~6 6) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:01:30,390 INFO L273 TraceCheckUtils]: 44: Hoare triple {15331#(= (+ ULTIMATE.start_main_~j~6 6) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {15332#(= (+ ULTIMATE.start_main_~j~6 5) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:01:30,391 INFO L273 TraceCheckUtils]: 45: Hoare triple {15332#(= (+ ULTIMATE.start_main_~j~6 5) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {15333#(= (+ ULTIMATE.start_main_~j~6 4) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:01:30,392 INFO L273 TraceCheckUtils]: 46: Hoare triple {15333#(= (+ ULTIMATE.start_main_~j~6 4) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {15334#(= (+ ULTIMATE.start_main_~j~6 3) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:01:30,393 INFO L273 TraceCheckUtils]: 47: Hoare triple {15334#(= (+ ULTIMATE.start_main_~j~6 3) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {15335#(= (+ ULTIMATE.start_main_~j~6 2) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:01:30,394 INFO L273 TraceCheckUtils]: 48: Hoare triple {15335#(= (+ ULTIMATE.start_main_~j~6 2) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {15336#(= (+ ULTIMATE.start_main_~j~6 1) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:01:30,395 INFO L273 TraceCheckUtils]: 49: Hoare triple {15336#(= (+ ULTIMATE.start_main_~j~6 1) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {15337#(= (select ULTIMATE.start_main_~str1~6 0) (select ULTIMATE.start_main_~str2~6 (+ ULTIMATE.start_main_~MAX~6 (- 1))))} is VALID [2019-01-31 15:01:30,396 INFO L273 TraceCheckUtils]: 50: Hoare triple {15337#(= (select ULTIMATE.start_main_~str1~6 0) (select ULTIMATE.start_main_~str2~6 (+ ULTIMATE.start_main_~MAX~6 (- 1))))} assume !(main_~i~6 >= 0);main_~j~6 := main_~MAX~6 - 1;main_~i~6 := 0;assume !!(main_~i~6 < main_~MAX~6);__VERIFIER_assert_#in~cond := (if main_~str1~6[main_~i~6] == main_~str2~6[main_~j~6] then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond;assume __VERIFIER_assert_~cond == 0;assume !false; {15287#false} is VALID [2019-01-31 15:01:30,396 INFO L273 TraceCheckUtils]: 51: Hoare triple {15287#false} assume !false; {15287#false} is VALID [2019-01-31 15:01:30,401 INFO L134 CoverageAnalysis]: Checked inductivity of 600 backedges. 0 proven. 600 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-31 15:01:30,402 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-31 15:01:30,402 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-01-31 15:01:30,402 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-01-31 15:01:30,402 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-01-31 15:01:30,402 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-31 15:01:30,402 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 37 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 37 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-01-31 15:01:30,414 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2019-01-31 15:01:30,414 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder TERMS_WITH_SMALL_CONSTANTS_FIRST (IT: FPandBP) [2019-01-31 15:01:30,442 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-01-31 15:01:30,442 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-01-31 15:01:30,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-31 15:01:30,463 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-31 15:01:32,105 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2019-01-31 15:01:32,113 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-01-31 15:01:32,118 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-31 15:01:32,119 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:17, output treesize:16 [2019-01-31 15:01:32,121 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-01-31 15:01:32,121 WARN L398 uantifierElimination]: Input elimination task: ∃ [v_ULTIMATE.start_main_~str2~6_450]. (and (<= 24 ULTIMATE.start_main_~MAX~6) (= ULTIMATE.start_main_~str2~6 (store v_ULTIMATE.start_main_~str2~6_450 23 (select ULTIMATE.start_main_~str1~6 0))) (<= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 25))) [2019-01-31 15:01:32,122 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (and (<= 24 ULTIMATE.start_main_~MAX~6) (= (select ULTIMATE.start_main_~str2~6 23) (select ULTIMATE.start_main_~str1~6 0)) (<= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 25))) [2019-01-31 15:01:32,207 INFO L273 TraceCheckUtils]: 0: Hoare triple {15286#true} havoc main_#res;havoc main_#t~nondet0, main_#t~nondet2, main_#t~post1, main_#t~post4, main_#t~post3, main_#t~post6, main_#t~post5, main_~MAX~6, main_~str1~6, main_~str2~6, main_~cont~6, main_~i~6, main_~j~6;main_~MAX~6 := (if main_#t~nondet0 % 4294967296 % 4294967296 <= 2147483647 then main_#t~nondet0 % 4294967296 % 4294967296 else main_#t~nondet0 % 4294967296 % 4294967296 - 4294967296);havoc main_#t~nondet0;havoc main_~str1~6;havoc main_~str2~6;havoc main_~cont~6;havoc main_~i~6;havoc main_~j~6;main_~cont~6 := 0;main_~i~6 := 0; {15286#true} is VALID [2019-01-31 15:01:32,208 INFO L273 TraceCheckUtils]: 1: Hoare triple {15286#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {15286#true} is VALID [2019-01-31 15:01:32,208 INFO L273 TraceCheckUtils]: 2: Hoare triple {15286#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {15286#true} is VALID [2019-01-31 15:01:32,208 INFO L273 TraceCheckUtils]: 3: Hoare triple {15286#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {15286#true} is VALID [2019-01-31 15:01:32,208 INFO L273 TraceCheckUtils]: 4: Hoare triple {15286#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {15286#true} is VALID [2019-01-31 15:01:32,208 INFO L273 TraceCheckUtils]: 5: Hoare triple {15286#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {15286#true} is VALID [2019-01-31 15:01:32,209 INFO L273 TraceCheckUtils]: 6: Hoare triple {15286#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {15286#true} is VALID [2019-01-31 15:01:32,209 INFO L273 TraceCheckUtils]: 7: Hoare triple {15286#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {15286#true} is VALID [2019-01-31 15:01:32,209 INFO L273 TraceCheckUtils]: 8: Hoare triple {15286#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {15286#true} is VALID [2019-01-31 15:01:32,209 INFO L273 TraceCheckUtils]: 9: Hoare triple {15286#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {15286#true} is VALID [2019-01-31 15:01:32,209 INFO L273 TraceCheckUtils]: 10: Hoare triple {15286#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {15286#true} is VALID [2019-01-31 15:01:32,209 INFO L273 TraceCheckUtils]: 11: Hoare triple {15286#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {15286#true} is VALID [2019-01-31 15:01:32,210 INFO L273 TraceCheckUtils]: 12: Hoare triple {15286#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {15286#true} is VALID [2019-01-31 15:01:32,210 INFO L273 TraceCheckUtils]: 13: Hoare triple {15286#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {15286#true} is VALID [2019-01-31 15:01:32,210 INFO L273 TraceCheckUtils]: 14: Hoare triple {15286#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {15286#true} is VALID [2019-01-31 15:01:32,210 INFO L273 TraceCheckUtils]: 15: Hoare triple {15286#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {15286#true} is VALID [2019-01-31 15:01:32,210 INFO L273 TraceCheckUtils]: 16: Hoare triple {15286#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {15286#true} is VALID [2019-01-31 15:01:32,211 INFO L273 TraceCheckUtils]: 17: Hoare triple {15286#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {15286#true} is VALID [2019-01-31 15:01:32,211 INFO L273 TraceCheckUtils]: 18: Hoare triple {15286#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {15286#true} is VALID [2019-01-31 15:01:32,211 INFO L273 TraceCheckUtils]: 19: Hoare triple {15286#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {15286#true} is VALID [2019-01-31 15:01:32,211 INFO L273 TraceCheckUtils]: 20: Hoare triple {15286#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {15286#true} is VALID [2019-01-31 15:01:32,211 INFO L273 TraceCheckUtils]: 21: Hoare triple {15286#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {15286#true} is VALID [2019-01-31 15:01:32,211 INFO L273 TraceCheckUtils]: 22: Hoare triple {15286#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {15286#true} is VALID [2019-01-31 15:01:32,212 INFO L273 TraceCheckUtils]: 23: Hoare triple {15286#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {15286#true} is VALID [2019-01-31 15:01:32,212 INFO L273 TraceCheckUtils]: 24: Hoare triple {15286#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {15286#true} is VALID [2019-01-31 15:01:32,212 INFO L273 TraceCheckUtils]: 25: Hoare triple {15286#true} assume !(main_~i~6 < main_~MAX~6);main_~str1~6 := main_~str1~6[main_~MAX~6 - 1 := 0];main_~j~6 := 0;main_~i~6 := main_~MAX~6 - 1; {15416#(and (= ULTIMATE.start_main_~j~6 0) (= (+ ULTIMATE.start_main_~i~6 1) ULTIMATE.start_main_~MAX~6))} is VALID [2019-01-31 15:01:32,213 INFO L273 TraceCheckUtils]: 26: Hoare triple {15416#(and (= ULTIMATE.start_main_~j~6 0) (= (+ ULTIMATE.start_main_~i~6 1) ULTIMATE.start_main_~MAX~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {15420#(and (= ULTIMATE.start_main_~j~6 1) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 2)))} is VALID [2019-01-31 15:01:32,213 INFO L273 TraceCheckUtils]: 27: Hoare triple {15420#(and (= ULTIMATE.start_main_~j~6 1) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 2)))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {15424#(and (= (+ ULTIMATE.start_main_~i~6 3) ULTIMATE.start_main_~MAX~6) (= ULTIMATE.start_main_~j~6 2))} is VALID [2019-01-31 15:01:32,214 INFO L273 TraceCheckUtils]: 28: Hoare triple {15424#(and (= (+ ULTIMATE.start_main_~i~6 3) ULTIMATE.start_main_~MAX~6) (= ULTIMATE.start_main_~j~6 2))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {15428#(and (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 4)) (= ULTIMATE.start_main_~j~6 3))} is VALID [2019-01-31 15:01:32,234 INFO L273 TraceCheckUtils]: 29: Hoare triple {15428#(and (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 4)) (= ULTIMATE.start_main_~j~6 3))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {15432#(and (= ULTIMATE.start_main_~j~6 4) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 5)))} is VALID [2019-01-31 15:01:32,253 INFO L273 TraceCheckUtils]: 30: Hoare triple {15432#(and (= ULTIMATE.start_main_~j~6 4) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 5)))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {15436#(and (= ULTIMATE.start_main_~j~6 5) (= (+ ULTIMATE.start_main_~i~6 6) ULTIMATE.start_main_~MAX~6))} is VALID [2019-01-31 15:01:32,256 INFO L273 TraceCheckUtils]: 31: Hoare triple {15436#(and (= ULTIMATE.start_main_~j~6 5) (= (+ ULTIMATE.start_main_~i~6 6) ULTIMATE.start_main_~MAX~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {15440#(and (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 7)) (= ULTIMATE.start_main_~j~6 6))} is VALID [2019-01-31 15:01:32,257 INFO L273 TraceCheckUtils]: 32: Hoare triple {15440#(and (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 7)) (= ULTIMATE.start_main_~j~6 6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {15444#(and (= ULTIMATE.start_main_~j~6 7) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 8)))} is VALID [2019-01-31 15:01:32,257 INFO L273 TraceCheckUtils]: 33: Hoare triple {15444#(and (= ULTIMATE.start_main_~j~6 7) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 8)))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {15448#(and (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 9)) (= ULTIMATE.start_main_~j~6 8))} is VALID [2019-01-31 15:01:32,258 INFO L273 TraceCheckUtils]: 34: Hoare triple {15448#(and (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 9)) (= ULTIMATE.start_main_~j~6 8))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {15452#(and (= ULTIMATE.start_main_~j~6 9) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 10)))} is VALID [2019-01-31 15:01:32,259 INFO L273 TraceCheckUtils]: 35: Hoare triple {15452#(and (= ULTIMATE.start_main_~j~6 9) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 10)))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {15456#(and (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 11)) (= ULTIMATE.start_main_~j~6 10))} is VALID [2019-01-31 15:01:32,260 INFO L273 TraceCheckUtils]: 36: Hoare triple {15456#(and (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 11)) (= ULTIMATE.start_main_~j~6 10))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {15460#(and (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 12)) (= ULTIMATE.start_main_~j~6 11))} is VALID [2019-01-31 15:01:32,261 INFO L273 TraceCheckUtils]: 37: Hoare triple {15460#(and (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 12)) (= ULTIMATE.start_main_~j~6 11))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {15464#(and (= ULTIMATE.start_main_~j~6 12) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 13)))} is VALID [2019-01-31 15:01:32,262 INFO L273 TraceCheckUtils]: 38: Hoare triple {15464#(and (= ULTIMATE.start_main_~j~6 12) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 13)))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {15468#(and (= ULTIMATE.start_main_~j~6 13) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 14)))} is VALID [2019-01-31 15:01:32,263 INFO L273 TraceCheckUtils]: 39: Hoare triple {15468#(and (= ULTIMATE.start_main_~j~6 13) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 14)))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {15472#(and (= ULTIMATE.start_main_~j~6 14) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 15)))} is VALID [2019-01-31 15:01:32,264 INFO L273 TraceCheckUtils]: 40: Hoare triple {15472#(and (= ULTIMATE.start_main_~j~6 14) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 15)))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {15476#(and (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 16)) (= ULTIMATE.start_main_~j~6 15))} is VALID [2019-01-31 15:01:32,265 INFO L273 TraceCheckUtils]: 41: Hoare triple {15476#(and (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 16)) (= ULTIMATE.start_main_~j~6 15))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {15480#(and (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 17)) (= ULTIMATE.start_main_~j~6 16))} is VALID [2019-01-31 15:01:32,266 INFO L273 TraceCheckUtils]: 42: Hoare triple {15480#(and (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 17)) (= ULTIMATE.start_main_~j~6 16))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {15484#(and (= ULTIMATE.start_main_~j~6 17) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 18)))} is VALID [2019-01-31 15:01:32,267 INFO L273 TraceCheckUtils]: 43: Hoare triple {15484#(and (= ULTIMATE.start_main_~j~6 17) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 18)))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {15488#(and (= ULTIMATE.start_main_~j~6 18) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 19)))} is VALID [2019-01-31 15:01:32,268 INFO L273 TraceCheckUtils]: 44: Hoare triple {15488#(and (= ULTIMATE.start_main_~j~6 18) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 19)))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {15492#(and (= ULTIMATE.start_main_~j~6 19) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 20)))} is VALID [2019-01-31 15:01:32,269 INFO L273 TraceCheckUtils]: 45: Hoare triple {15492#(and (= ULTIMATE.start_main_~j~6 19) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 20)))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {15496#(and (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 21)) (= ULTIMATE.start_main_~j~6 20))} is VALID [2019-01-31 15:01:32,270 INFO L273 TraceCheckUtils]: 46: Hoare triple {15496#(and (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 21)) (= ULTIMATE.start_main_~j~6 20))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {15500#(and (= ULTIMATE.start_main_~j~6 21) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 22)))} is VALID [2019-01-31 15:01:32,271 INFO L273 TraceCheckUtils]: 47: Hoare triple {15500#(and (= ULTIMATE.start_main_~j~6 21) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 22)))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {15504#(and (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 23)) (= ULTIMATE.start_main_~j~6 22))} is VALID [2019-01-31 15:01:32,272 INFO L273 TraceCheckUtils]: 48: Hoare triple {15504#(and (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 23)) (= ULTIMATE.start_main_~j~6 22))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {15508#(and (= ULTIMATE.start_main_~j~6 23) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 24)))} is VALID [2019-01-31 15:01:32,273 INFO L273 TraceCheckUtils]: 49: Hoare triple {15508#(and (= ULTIMATE.start_main_~j~6 23) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 24)))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {15512#(and (<= 24 ULTIMATE.start_main_~MAX~6) (= (select ULTIMATE.start_main_~str2~6 23) (select ULTIMATE.start_main_~str1~6 0)) (<= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 25)))} is VALID [2019-01-31 15:01:32,274 INFO L273 TraceCheckUtils]: 50: Hoare triple {15512#(and (<= 24 ULTIMATE.start_main_~MAX~6) (= (select ULTIMATE.start_main_~str2~6 23) (select ULTIMATE.start_main_~str1~6 0)) (<= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 25)))} assume !(main_~i~6 >= 0);main_~j~6 := main_~MAX~6 - 1;main_~i~6 := 0;assume !!(main_~i~6 < main_~MAX~6);__VERIFIER_assert_#in~cond := (if main_~str1~6[main_~i~6] == main_~str2~6[main_~j~6] then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond;assume __VERIFIER_assert_~cond == 0;assume !false; {15287#false} is VALID [2019-01-31 15:01:32,274 INFO L273 TraceCheckUtils]: 51: Hoare triple {15287#false} assume !false; {15287#false} is VALID [2019-01-31 15:01:32,280 INFO L134 CoverageAnalysis]: Checked inductivity of 600 backedges. 0 proven. 300 refuted. 0 times theorem prover too weak. 300 trivial. 0 not checked. [2019-01-31 15:01:32,280 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2019-01-31 15:01:32,395 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 5 [2019-01-31 15:01:32,397 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-01-31 15:01:32,416 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-31 15:01:32,416 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:22, output treesize:12 [2019-01-31 15:01:34,630 INFO L273 TraceCheckUtils]: 51: Hoare triple {15287#false} assume !false; {15287#false} is VALID [2019-01-31 15:01:34,631 INFO L273 TraceCheckUtils]: 50: Hoare triple {15522#(or (= (select ULTIMATE.start_main_~str1~6 0) (select ULTIMATE.start_main_~str2~6 (+ ULTIMATE.start_main_~MAX~6 (- 1)))) (<= 0 ULTIMATE.start_main_~i~6))} assume !(main_~i~6 >= 0);main_~j~6 := main_~MAX~6 - 1;main_~i~6 := 0;assume !!(main_~i~6 < main_~MAX~6);__VERIFIER_assert_#in~cond := (if main_~str1~6[main_~i~6] == main_~str2~6[main_~j~6] then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond;assume __VERIFIER_assert_~cond == 0;assume !false; {15287#false} is VALID [2019-01-31 15:01:34,632 INFO L273 TraceCheckUtils]: 49: Hoare triple {15526#(or (< ULTIMATE.start_main_~i~6 0) (< 0 ULTIMATE.start_main_~i~6) (= (+ ULTIMATE.start_main_~j~6 1) ULTIMATE.start_main_~MAX~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {15522#(or (= (select ULTIMATE.start_main_~str1~6 0) (select ULTIMATE.start_main_~str2~6 (+ ULTIMATE.start_main_~MAX~6 (- 1)))) (<= 0 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:01:34,633 INFO L273 TraceCheckUtils]: 48: Hoare triple {15530#(or (= (+ ULTIMATE.start_main_~j~6 2) ULTIMATE.start_main_~MAX~6) (< 1 ULTIMATE.start_main_~i~6) (< ULTIMATE.start_main_~i~6 1))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {15526#(or (< ULTIMATE.start_main_~i~6 0) (< 0 ULTIMATE.start_main_~i~6) (= (+ ULTIMATE.start_main_~j~6 1) ULTIMATE.start_main_~MAX~6))} is VALID [2019-01-31 15:01:34,634 INFO L273 TraceCheckUtils]: 47: Hoare triple {15534#(or (= (+ ULTIMATE.start_main_~j~6 3) ULTIMATE.start_main_~MAX~6) (< ULTIMATE.start_main_~i~6 2) (< 2 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {15530#(or (= (+ ULTIMATE.start_main_~j~6 2) ULTIMATE.start_main_~MAX~6) (< 1 ULTIMATE.start_main_~i~6) (< ULTIMATE.start_main_~i~6 1))} is VALID [2019-01-31 15:01:34,636 INFO L273 TraceCheckUtils]: 46: Hoare triple {15538#(or (= (+ ULTIMATE.start_main_~j~6 4) ULTIMATE.start_main_~MAX~6) (< ULTIMATE.start_main_~i~6 3) (< 3 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {15534#(or (= (+ ULTIMATE.start_main_~j~6 3) ULTIMATE.start_main_~MAX~6) (< ULTIMATE.start_main_~i~6 2) (< 2 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:01:34,637 INFO L273 TraceCheckUtils]: 45: Hoare triple {15542#(or (= (+ ULTIMATE.start_main_~j~6 5) ULTIMATE.start_main_~MAX~6) (< 4 ULTIMATE.start_main_~i~6) (< ULTIMATE.start_main_~i~6 4))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {15538#(or (= (+ ULTIMATE.start_main_~j~6 4) ULTIMATE.start_main_~MAX~6) (< ULTIMATE.start_main_~i~6 3) (< 3 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:01:34,638 INFO L273 TraceCheckUtils]: 44: Hoare triple {15546#(or (< ULTIMATE.start_main_~i~6 5) (< 5 ULTIMATE.start_main_~i~6) (= (+ ULTIMATE.start_main_~j~6 6) ULTIMATE.start_main_~MAX~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {15542#(or (= (+ ULTIMATE.start_main_~j~6 5) ULTIMATE.start_main_~MAX~6) (< 4 ULTIMATE.start_main_~i~6) (< ULTIMATE.start_main_~i~6 4))} is VALID [2019-01-31 15:01:34,639 INFO L273 TraceCheckUtils]: 43: Hoare triple {15550#(or (< ULTIMATE.start_main_~i~6 6) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 7)) (< 6 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {15546#(or (< ULTIMATE.start_main_~i~6 5) (< 5 ULTIMATE.start_main_~i~6) (= (+ ULTIMATE.start_main_~j~6 6) ULTIMATE.start_main_~MAX~6))} is VALID [2019-01-31 15:01:34,640 INFO L273 TraceCheckUtils]: 42: Hoare triple {15554#(or (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 8)) (< ULTIMATE.start_main_~i~6 7) (< 7 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {15550#(or (< ULTIMATE.start_main_~i~6 6) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 7)) (< 6 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:01:34,641 INFO L273 TraceCheckUtils]: 41: Hoare triple {15558#(or (< 8 ULTIMATE.start_main_~i~6) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 9)) (< ULTIMATE.start_main_~i~6 8))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {15554#(or (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 8)) (< ULTIMATE.start_main_~i~6 7) (< 7 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:01:34,642 INFO L273 TraceCheckUtils]: 40: Hoare triple {15562#(or (< ULTIMATE.start_main_~i~6 9) (= (+ ULTIMATE.start_main_~j~6 10) ULTIMATE.start_main_~MAX~6) (< 9 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {15558#(or (< 8 ULTIMATE.start_main_~i~6) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 9)) (< ULTIMATE.start_main_~i~6 8))} is VALID [2019-01-31 15:01:34,644 INFO L273 TraceCheckUtils]: 39: Hoare triple {15566#(or (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 11)) (< 10 ULTIMATE.start_main_~i~6) (< ULTIMATE.start_main_~i~6 10))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {15562#(or (< ULTIMATE.start_main_~i~6 9) (= (+ ULTIMATE.start_main_~j~6 10) ULTIMATE.start_main_~MAX~6) (< 9 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:01:34,645 INFO L273 TraceCheckUtils]: 38: Hoare triple {15570#(or (< ULTIMATE.start_main_~i~6 11) (= (+ ULTIMATE.start_main_~j~6 12) ULTIMATE.start_main_~MAX~6) (< 11 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {15566#(or (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 11)) (< 10 ULTIMATE.start_main_~i~6) (< ULTIMATE.start_main_~i~6 10))} is VALID [2019-01-31 15:01:34,646 INFO L273 TraceCheckUtils]: 37: Hoare triple {15574#(or (< 12 ULTIMATE.start_main_~i~6) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 13)) (< ULTIMATE.start_main_~i~6 12))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {15570#(or (< ULTIMATE.start_main_~i~6 11) (= (+ ULTIMATE.start_main_~j~6 12) ULTIMATE.start_main_~MAX~6) (< 11 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:01:34,647 INFO L273 TraceCheckUtils]: 36: Hoare triple {15578#(or (< ULTIMATE.start_main_~i~6 13) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 14)) (< 13 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {15574#(or (< 12 ULTIMATE.start_main_~i~6) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 13)) (< ULTIMATE.start_main_~i~6 12))} is VALID [2019-01-31 15:01:34,648 INFO L273 TraceCheckUtils]: 35: Hoare triple {15582#(or (< 14 ULTIMATE.start_main_~i~6) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 15)) (< ULTIMATE.start_main_~i~6 14))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {15578#(or (< ULTIMATE.start_main_~i~6 13) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 14)) (< 13 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:01:34,649 INFO L273 TraceCheckUtils]: 34: Hoare triple {15586#(or (< 15 ULTIMATE.start_main_~i~6) (< ULTIMATE.start_main_~i~6 15) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 16)))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {15582#(or (< 14 ULTIMATE.start_main_~i~6) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 15)) (< ULTIMATE.start_main_~i~6 14))} is VALID [2019-01-31 15:01:34,650 INFO L273 TraceCheckUtils]: 33: Hoare triple {15590#(or (< ULTIMATE.start_main_~i~6 16) (< 16 ULTIMATE.start_main_~i~6) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 17)))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {15586#(or (< 15 ULTIMATE.start_main_~i~6) (< ULTIMATE.start_main_~i~6 15) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 16)))} is VALID [2019-01-31 15:01:34,651 INFO L273 TraceCheckUtils]: 32: Hoare triple {15594#(or (< ULTIMATE.start_main_~i~6 17) (< 17 ULTIMATE.start_main_~i~6) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 18)))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {15590#(or (< ULTIMATE.start_main_~i~6 16) (< 16 ULTIMATE.start_main_~i~6) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 17)))} is VALID [2019-01-31 15:01:34,653 INFO L273 TraceCheckUtils]: 31: Hoare triple {15598#(or (< ULTIMATE.start_main_~i~6 18) (< 18 ULTIMATE.start_main_~i~6) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 19)))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {15594#(or (< ULTIMATE.start_main_~i~6 17) (< 17 ULTIMATE.start_main_~i~6) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 18)))} is VALID [2019-01-31 15:01:34,654 INFO L273 TraceCheckUtils]: 30: Hoare triple {15602#(or (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 20)) (< 19 ULTIMATE.start_main_~i~6) (< ULTIMATE.start_main_~i~6 19))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {15598#(or (< ULTIMATE.start_main_~i~6 18) (< 18 ULTIMATE.start_main_~i~6) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 19)))} is VALID [2019-01-31 15:01:34,655 INFO L273 TraceCheckUtils]: 29: Hoare triple {15606#(or (< ULTIMATE.start_main_~i~6 20) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 21)) (< 20 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {15602#(or (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 20)) (< 19 ULTIMATE.start_main_~i~6) (< ULTIMATE.start_main_~i~6 19))} is VALID [2019-01-31 15:01:34,656 INFO L273 TraceCheckUtils]: 28: Hoare triple {15610#(or (< 21 ULTIMATE.start_main_~i~6) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 22)) (< ULTIMATE.start_main_~i~6 21))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {15606#(or (< ULTIMATE.start_main_~i~6 20) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 21)) (< 20 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:01:34,657 INFO L273 TraceCheckUtils]: 27: Hoare triple {15614#(or (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 23)) (< ULTIMATE.start_main_~i~6 22) (< 22 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {15610#(or (< 21 ULTIMATE.start_main_~i~6) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 22)) (< ULTIMATE.start_main_~i~6 21))} is VALID [2019-01-31 15:01:34,658 INFO L273 TraceCheckUtils]: 26: Hoare triple {15618#(or (< ULTIMATE.start_main_~i~6 23) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 24)) (< 23 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {15614#(or (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 23)) (< ULTIMATE.start_main_~i~6 22) (< 22 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:01:34,659 INFO L273 TraceCheckUtils]: 25: Hoare triple {15286#true} assume !(main_~i~6 < main_~MAX~6);main_~str1~6 := main_~str1~6[main_~MAX~6 - 1 := 0];main_~j~6 := 0;main_~i~6 := main_~MAX~6 - 1; {15618#(or (< ULTIMATE.start_main_~i~6 23) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 24)) (< 23 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:01:34,659 INFO L273 TraceCheckUtils]: 24: Hoare triple {15286#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {15286#true} is VALID [2019-01-31 15:01:34,659 INFO L273 TraceCheckUtils]: 23: Hoare triple {15286#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {15286#true} is VALID [2019-01-31 15:01:34,660 INFO L273 TraceCheckUtils]: 22: Hoare triple {15286#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {15286#true} is VALID [2019-01-31 15:01:34,660 INFO L273 TraceCheckUtils]: 21: Hoare triple {15286#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {15286#true} is VALID [2019-01-31 15:01:34,660 INFO L273 TraceCheckUtils]: 20: Hoare triple {15286#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {15286#true} is VALID [2019-01-31 15:01:34,660 INFO L273 TraceCheckUtils]: 19: Hoare triple {15286#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {15286#true} is VALID [2019-01-31 15:01:34,660 INFO L273 TraceCheckUtils]: 18: Hoare triple {15286#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {15286#true} is VALID [2019-01-31 15:01:34,660 INFO L273 TraceCheckUtils]: 17: Hoare triple {15286#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {15286#true} is VALID [2019-01-31 15:01:34,661 INFO L273 TraceCheckUtils]: 16: Hoare triple {15286#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {15286#true} is VALID [2019-01-31 15:01:34,661 INFO L273 TraceCheckUtils]: 15: Hoare triple {15286#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {15286#true} is VALID [2019-01-31 15:01:34,661 INFO L273 TraceCheckUtils]: 14: Hoare triple {15286#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {15286#true} is VALID [2019-01-31 15:01:34,661 INFO L273 TraceCheckUtils]: 13: Hoare triple {15286#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {15286#true} is VALID [2019-01-31 15:01:34,661 INFO L273 TraceCheckUtils]: 12: Hoare triple {15286#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {15286#true} is VALID [2019-01-31 15:01:34,661 INFO L273 TraceCheckUtils]: 11: Hoare triple {15286#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {15286#true} is VALID [2019-01-31 15:01:34,661 INFO L273 TraceCheckUtils]: 10: Hoare triple {15286#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {15286#true} is VALID [2019-01-31 15:01:34,662 INFO L273 TraceCheckUtils]: 9: Hoare triple {15286#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {15286#true} is VALID [2019-01-31 15:01:34,662 INFO L273 TraceCheckUtils]: 8: Hoare triple {15286#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {15286#true} is VALID [2019-01-31 15:01:34,662 INFO L273 TraceCheckUtils]: 7: Hoare triple {15286#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {15286#true} is VALID [2019-01-31 15:01:34,662 INFO L273 TraceCheckUtils]: 6: Hoare triple {15286#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {15286#true} is VALID [2019-01-31 15:01:34,662 INFO L273 TraceCheckUtils]: 5: Hoare triple {15286#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {15286#true} is VALID [2019-01-31 15:01:34,662 INFO L273 TraceCheckUtils]: 4: Hoare triple {15286#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {15286#true} is VALID [2019-01-31 15:01:34,662 INFO L273 TraceCheckUtils]: 3: Hoare triple {15286#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {15286#true} is VALID [2019-01-31 15:01:34,662 INFO L273 TraceCheckUtils]: 2: Hoare triple {15286#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {15286#true} is VALID [2019-01-31 15:01:34,662 INFO L273 TraceCheckUtils]: 1: Hoare triple {15286#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {15286#true} is VALID [2019-01-31 15:01:34,663 INFO L273 TraceCheckUtils]: 0: Hoare triple {15286#true} havoc main_#res;havoc main_#t~nondet0, main_#t~nondet2, main_#t~post1, main_#t~post4, main_#t~post3, main_#t~post6, main_#t~post5, main_~MAX~6, main_~str1~6, main_~str2~6, main_~cont~6, main_~i~6, main_~j~6;main_~MAX~6 := (if main_#t~nondet0 % 4294967296 % 4294967296 <= 2147483647 then main_#t~nondet0 % 4294967296 % 4294967296 else main_#t~nondet0 % 4294967296 % 4294967296 - 4294967296);havoc main_#t~nondet0;havoc main_~str1~6;havoc main_~str2~6;havoc main_~cont~6;havoc main_~i~6;havoc main_~j~6;main_~cont~6 := 0;main_~i~6 := 0; {15286#true} is VALID [2019-01-31 15:01:34,666 INFO L134 CoverageAnalysis]: Checked inductivity of 600 backedges. 0 proven. 300 refuted. 0 times theorem prover too weak. 300 trivial. 0 not checked. [2019-01-31 15:01:34,685 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-01-31 15:01:34,686 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [51, 27, 27] total 102 [2019-01-31 15:01:34,686 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-01-31 15:01:34,686 INFO L78 Accepts]: Start accepts. Automaton has 77 states. Word has length 52 [2019-01-31 15:01:34,686 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-01-31 15:01:34,686 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 77 states. [2019-01-31 15:01:34,763 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 80 edges. 80 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-01-31 15:01:34,763 INFO L459 AbstractCegarLoop]: Interpolant automaton has 77 states [2019-01-31 15:01:34,763 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 77 interpolants. [2019-01-31 15:01:34,764 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1402, Invalid=8900, Unknown=0, NotChecked=0, Total=10302 [2019-01-31 15:01:34,764 INFO L87 Difference]: Start difference. First operand 53 states and 54 transitions. Second operand 77 states. [2019-01-31 15:01:48,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 15:01:48,251 INFO L93 Difference]: Finished difference Result 83 states and 87 transitions. [2019-01-31 15:01:48,252 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2019-01-31 15:01:48,252 INFO L78 Accepts]: Start accepts. Automaton has 77 states. Word has length 52 [2019-01-31 15:01:48,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-31 15:01:48,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 77 states. [2019-01-31 15:01:48,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 87 transitions. [2019-01-31 15:01:48,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 77 states. [2019-01-31 15:01:48,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 87 transitions. [2019-01-31 15:01:48,254 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 80 states and 87 transitions. [2019-01-31 15:01:48,354 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 87 edges. 87 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-01-31 15:01:48,355 INFO L225 Difference]: With dead ends: 83 [2019-01-31 15:01:48,355 INFO L226 Difference]: Without dead ends: 55 [2019-01-31 15:01:48,356 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 182 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 129 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1376 ImplicationChecksByTransitivity, 7.5s TimeCoverageRelationStatistics Valid=2275, Invalid=14755, Unknown=0, NotChecked=0, Total=17030 [2019-01-31 15:01:48,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2019-01-31 15:01:49,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55. [2019-01-31 15:01:49,746 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-01-31 15:01:49,746 INFO L82 GeneralOperation]: Start isEquivalent. First operand 55 states. Second operand 55 states. [2019-01-31 15:01:49,746 INFO L74 IsIncluded]: Start isIncluded. First operand 55 states. Second operand 55 states. [2019-01-31 15:01:49,747 INFO L87 Difference]: Start difference. First operand 55 states. Second operand 55 states. [2019-01-31 15:01:49,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 15:01:49,748 INFO L93 Difference]: Finished difference Result 55 states and 56 transitions. [2019-01-31 15:01:49,748 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 56 transitions. [2019-01-31 15:01:49,749 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-31 15:01:49,749 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-01-31 15:01:49,749 INFO L74 IsIncluded]: Start isIncluded. First operand 55 states. Second operand 55 states. [2019-01-31 15:01:49,749 INFO L87 Difference]: Start difference. First operand 55 states. Second operand 55 states. [2019-01-31 15:01:49,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 15:01:49,750 INFO L93 Difference]: Finished difference Result 55 states and 56 transitions. [2019-01-31 15:01:49,750 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 56 transitions. [2019-01-31 15:01:49,750 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-31 15:01:49,751 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-01-31 15:01:49,751 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-01-31 15:01:49,751 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-01-31 15:01:49,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2019-01-31 15:01:49,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 56 transitions. [2019-01-31 15:01:49,752 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 56 transitions. Word has length 52 [2019-01-31 15:01:49,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-31 15:01:49,752 INFO L480 AbstractCegarLoop]: Abstraction has 55 states and 56 transitions. [2019-01-31 15:01:49,752 INFO L481 AbstractCegarLoop]: Interpolant automaton has 77 states. [2019-01-31 15:01:49,752 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 56 transitions. [2019-01-31 15:01:49,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2019-01-31 15:01:49,752 INFO L394 BasicCegarLoop]: Found error trace [2019-01-31 15:01:49,753 INFO L402 BasicCegarLoop]: trace histogram [25, 25, 1, 1, 1, 1] [2019-01-31 15:01:49,753 INFO L423 AbstractCegarLoop]: === Iteration 39 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2019-01-31 15:01:49,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-31 15:01:49,753 INFO L82 PathProgramCache]: Analyzing trace with hash -1904013259, now seen corresponding path program 37 times [2019-01-31 15:01:49,753 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-01-31 15:01:49,754 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-31 15:01:49,754 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-01-31 15:01:49,754 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-31 15:01:49,754 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-01-31 15:01:49,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-31 15:01:51,566 INFO L273 TraceCheckUtils]: 0: Hoare triple {16135#true} havoc main_#res;havoc main_#t~nondet0, main_#t~nondet2, main_#t~post1, main_#t~post4, main_#t~post3, main_#t~post6, main_#t~post5, main_~MAX~6, main_~str1~6, main_~str2~6, main_~cont~6, main_~i~6, main_~j~6;main_~MAX~6 := (if main_#t~nondet0 % 4294967296 % 4294967296 <= 2147483647 then main_#t~nondet0 % 4294967296 % 4294967296 else main_#t~nondet0 % 4294967296 % 4294967296 - 4294967296);havoc main_#t~nondet0;havoc main_~str1~6;havoc main_~str2~6;havoc main_~cont~6;havoc main_~i~6;havoc main_~j~6;main_~cont~6 := 0;main_~i~6 := 0; {16137#(and (<= ULTIMATE.start_main_~i~6 0) (<= 0 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:01:51,567 INFO L273 TraceCheckUtils]: 1: Hoare triple {16137#(and (<= ULTIMATE.start_main_~i~6 0) (<= 0 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {16138#(and (<= ULTIMATE.start_main_~i~6 1) (<= 1 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:01:51,568 INFO L273 TraceCheckUtils]: 2: Hoare triple {16138#(and (<= ULTIMATE.start_main_~i~6 1) (<= 1 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {16139#(and (<= ULTIMATE.start_main_~i~6 2) (<= 2 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:01:51,569 INFO L273 TraceCheckUtils]: 3: Hoare triple {16139#(and (<= ULTIMATE.start_main_~i~6 2) (<= 2 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {16140#(and (<= 3 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 3))} is VALID [2019-01-31 15:01:51,570 INFO L273 TraceCheckUtils]: 4: Hoare triple {16140#(and (<= 3 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 3))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {16141#(and (<= ULTIMATE.start_main_~i~6 4) (<= 4 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:01:51,571 INFO L273 TraceCheckUtils]: 5: Hoare triple {16141#(and (<= ULTIMATE.start_main_~i~6 4) (<= 4 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {16142#(and (<= 5 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 5))} is VALID [2019-01-31 15:01:51,572 INFO L273 TraceCheckUtils]: 6: Hoare triple {16142#(and (<= 5 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 5))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {16143#(and (<= ULTIMATE.start_main_~i~6 6) (<= 6 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:01:51,573 INFO L273 TraceCheckUtils]: 7: Hoare triple {16143#(and (<= ULTIMATE.start_main_~i~6 6) (<= 6 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {16144#(and (<= 7 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 7))} is VALID [2019-01-31 15:01:51,574 INFO L273 TraceCheckUtils]: 8: Hoare triple {16144#(and (<= 7 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 7))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {16145#(and (<= ULTIMATE.start_main_~i~6 8) (<= 8 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:01:51,575 INFO L273 TraceCheckUtils]: 9: Hoare triple {16145#(and (<= ULTIMATE.start_main_~i~6 8) (<= 8 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {16146#(and (<= ULTIMATE.start_main_~i~6 9) (<= 9 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:01:51,576 INFO L273 TraceCheckUtils]: 10: Hoare triple {16146#(and (<= ULTIMATE.start_main_~i~6 9) (<= 9 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {16147#(and (<= ULTIMATE.start_main_~i~6 10) (<= 10 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:01:51,577 INFO L273 TraceCheckUtils]: 11: Hoare triple {16147#(and (<= ULTIMATE.start_main_~i~6 10) (<= 10 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {16148#(and (<= 11 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 11))} is VALID [2019-01-31 15:01:51,578 INFO L273 TraceCheckUtils]: 12: Hoare triple {16148#(and (<= 11 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 11))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {16149#(and (<= ULTIMATE.start_main_~i~6 12) (<= 12 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:01:51,579 INFO L273 TraceCheckUtils]: 13: Hoare triple {16149#(and (<= ULTIMATE.start_main_~i~6 12) (<= 12 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {16150#(and (<= ULTIMATE.start_main_~i~6 13) (<= 13 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:01:51,579 INFO L273 TraceCheckUtils]: 14: Hoare triple {16150#(and (<= ULTIMATE.start_main_~i~6 13) (<= 13 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {16151#(and (<= ULTIMATE.start_main_~i~6 14) (<= 14 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:01:51,580 INFO L273 TraceCheckUtils]: 15: Hoare triple {16151#(and (<= ULTIMATE.start_main_~i~6 14) (<= 14 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {16152#(and (<= 15 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 15))} is VALID [2019-01-31 15:01:51,581 INFO L273 TraceCheckUtils]: 16: Hoare triple {16152#(and (<= 15 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 15))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {16153#(and (<= 16 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 16))} is VALID [2019-01-31 15:01:51,582 INFO L273 TraceCheckUtils]: 17: Hoare triple {16153#(and (<= 16 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 16))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {16154#(and (<= ULTIMATE.start_main_~i~6 17) (<= 17 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:01:51,583 INFO L273 TraceCheckUtils]: 18: Hoare triple {16154#(and (<= ULTIMATE.start_main_~i~6 17) (<= 17 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {16155#(and (<= ULTIMATE.start_main_~i~6 18) (<= 18 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:01:51,584 INFO L273 TraceCheckUtils]: 19: Hoare triple {16155#(and (<= ULTIMATE.start_main_~i~6 18) (<= 18 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {16156#(and (<= ULTIMATE.start_main_~i~6 19) (<= 19 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:01:51,585 INFO L273 TraceCheckUtils]: 20: Hoare triple {16156#(and (<= ULTIMATE.start_main_~i~6 19) (<= 19 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {16157#(and (<= ULTIMATE.start_main_~i~6 20) (<= 20 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:01:51,586 INFO L273 TraceCheckUtils]: 21: Hoare triple {16157#(and (<= ULTIMATE.start_main_~i~6 20) (<= 20 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {16158#(and (<= ULTIMATE.start_main_~i~6 21) (<= 21 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:01:51,587 INFO L273 TraceCheckUtils]: 22: Hoare triple {16158#(and (<= ULTIMATE.start_main_~i~6 21) (<= 21 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {16159#(and (<= 22 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 22))} is VALID [2019-01-31 15:01:51,588 INFO L273 TraceCheckUtils]: 23: Hoare triple {16159#(and (<= 22 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 22))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {16160#(and (<= 23 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 23))} is VALID [2019-01-31 15:01:51,589 INFO L273 TraceCheckUtils]: 24: Hoare triple {16160#(and (<= 23 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 23))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {16161#(or (not (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 1))) (and (<= ULTIMATE.start_main_~i~6 24) (<= 24 ULTIMATE.start_main_~i~6)))} is VALID [2019-01-31 15:01:51,590 INFO L273 TraceCheckUtils]: 25: Hoare triple {16161#(or (not (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 1))) (and (<= ULTIMATE.start_main_~i~6 24) (<= 24 ULTIMATE.start_main_~i~6)))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {16162#(or (<= (+ ULTIMATE.start_main_~i~6 1) ULTIMATE.start_main_~MAX~6) (= 25 ULTIMATE.start_main_~MAX~6))} is VALID [2019-01-31 15:01:51,591 INFO L273 TraceCheckUtils]: 26: Hoare triple {16162#(or (<= (+ ULTIMATE.start_main_~i~6 1) ULTIMATE.start_main_~MAX~6) (= 25 ULTIMATE.start_main_~MAX~6))} assume !(main_~i~6 < main_~MAX~6);main_~str1~6 := main_~str1~6[main_~MAX~6 - 1 := 0];main_~j~6 := 0;main_~i~6 := main_~MAX~6 - 1; {16163#(= (+ ULTIMATE.start_main_~j~6 25) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:01:51,592 INFO L273 TraceCheckUtils]: 27: Hoare triple {16163#(= (+ ULTIMATE.start_main_~j~6 25) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {16164#(= (+ ULTIMATE.start_main_~j~6 24) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:01:51,593 INFO L273 TraceCheckUtils]: 28: Hoare triple {16164#(= (+ ULTIMATE.start_main_~j~6 24) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {16165#(= (+ ULTIMATE.start_main_~j~6 23) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:01:51,594 INFO L273 TraceCheckUtils]: 29: Hoare triple {16165#(= (+ ULTIMATE.start_main_~j~6 23) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {16166#(= (+ ULTIMATE.start_main_~j~6 22) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:01:51,595 INFO L273 TraceCheckUtils]: 30: Hoare triple {16166#(= (+ ULTIMATE.start_main_~j~6 22) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {16167#(= (+ ULTIMATE.start_main_~j~6 21) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:01:51,596 INFO L273 TraceCheckUtils]: 31: Hoare triple {16167#(= (+ ULTIMATE.start_main_~j~6 21) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {16168#(= (+ ULTIMATE.start_main_~j~6 20) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:01:51,597 INFO L273 TraceCheckUtils]: 32: Hoare triple {16168#(= (+ ULTIMATE.start_main_~j~6 20) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {16169#(= (+ ULTIMATE.start_main_~j~6 19) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:01:51,598 INFO L273 TraceCheckUtils]: 33: Hoare triple {16169#(= (+ ULTIMATE.start_main_~j~6 19) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {16170#(= (+ ULTIMATE.start_main_~j~6 18) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:01:51,599 INFO L273 TraceCheckUtils]: 34: Hoare triple {16170#(= (+ ULTIMATE.start_main_~j~6 18) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {16171#(= (+ ULTIMATE.start_main_~j~6 17) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:01:51,600 INFO L273 TraceCheckUtils]: 35: Hoare triple {16171#(= (+ ULTIMATE.start_main_~j~6 17) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {16172#(= (+ ULTIMATE.start_main_~j~6 16) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:01:51,601 INFO L273 TraceCheckUtils]: 36: Hoare triple {16172#(= (+ ULTIMATE.start_main_~j~6 16) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {16173#(= (+ ULTIMATE.start_main_~j~6 15) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:01:51,602 INFO L273 TraceCheckUtils]: 37: Hoare triple {16173#(= (+ ULTIMATE.start_main_~j~6 15) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {16174#(= (+ ULTIMATE.start_main_~j~6 14) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:01:51,603 INFO L273 TraceCheckUtils]: 38: Hoare triple {16174#(= (+ ULTIMATE.start_main_~j~6 14) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {16175#(= (+ ULTIMATE.start_main_~j~6 13) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:01:51,604 INFO L273 TraceCheckUtils]: 39: Hoare triple {16175#(= (+ ULTIMATE.start_main_~j~6 13) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {16176#(= (+ ULTIMATE.start_main_~j~6 12) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:01:51,605 INFO L273 TraceCheckUtils]: 40: Hoare triple {16176#(= (+ ULTIMATE.start_main_~j~6 12) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {16177#(= (+ ULTIMATE.start_main_~j~6 11) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:01:51,606 INFO L273 TraceCheckUtils]: 41: Hoare triple {16177#(= (+ ULTIMATE.start_main_~j~6 11) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {16178#(= (+ ULTIMATE.start_main_~j~6 10) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:01:51,607 INFO L273 TraceCheckUtils]: 42: Hoare triple {16178#(= (+ ULTIMATE.start_main_~j~6 10) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {16179#(= (+ ULTIMATE.start_main_~j~6 9) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:01:51,608 INFO L273 TraceCheckUtils]: 43: Hoare triple {16179#(= (+ ULTIMATE.start_main_~j~6 9) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {16180#(= (+ ULTIMATE.start_main_~j~6 8) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:01:51,608 INFO L273 TraceCheckUtils]: 44: Hoare triple {16180#(= (+ ULTIMATE.start_main_~j~6 8) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {16181#(= (+ ULTIMATE.start_main_~j~6 7) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:01:51,625 INFO L273 TraceCheckUtils]: 45: Hoare triple {16181#(= (+ ULTIMATE.start_main_~j~6 7) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {16182#(= (+ ULTIMATE.start_main_~j~6 6) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:01:51,639 INFO L273 TraceCheckUtils]: 46: Hoare triple {16182#(= (+ ULTIMATE.start_main_~j~6 6) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {16183#(= (+ ULTIMATE.start_main_~j~6 5) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:01:51,654 INFO L273 TraceCheckUtils]: 47: Hoare triple {16183#(= (+ ULTIMATE.start_main_~j~6 5) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {16184#(= (+ ULTIMATE.start_main_~j~6 4) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:01:51,663 INFO L273 TraceCheckUtils]: 48: Hoare triple {16184#(= (+ ULTIMATE.start_main_~j~6 4) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {16185#(= (+ ULTIMATE.start_main_~j~6 3) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:01:51,676 INFO L273 TraceCheckUtils]: 49: Hoare triple {16185#(= (+ ULTIMATE.start_main_~j~6 3) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {16186#(= (+ ULTIMATE.start_main_~j~6 2) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:01:51,683 INFO L273 TraceCheckUtils]: 50: Hoare triple {16186#(= (+ ULTIMATE.start_main_~j~6 2) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {16187#(= (+ ULTIMATE.start_main_~j~6 1) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:01:51,684 INFO L273 TraceCheckUtils]: 51: Hoare triple {16187#(= (+ ULTIMATE.start_main_~j~6 1) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {16188#(= (select ULTIMATE.start_main_~str1~6 0) (select ULTIMATE.start_main_~str2~6 (+ ULTIMATE.start_main_~MAX~6 (- 1))))} is VALID [2019-01-31 15:01:51,684 INFO L273 TraceCheckUtils]: 52: Hoare triple {16188#(= (select ULTIMATE.start_main_~str1~6 0) (select ULTIMATE.start_main_~str2~6 (+ ULTIMATE.start_main_~MAX~6 (- 1))))} assume !(main_~i~6 >= 0);main_~j~6 := main_~MAX~6 - 1;main_~i~6 := 0;assume !!(main_~i~6 < main_~MAX~6);__VERIFIER_assert_#in~cond := (if main_~str1~6[main_~i~6] == main_~str2~6[main_~j~6] then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond;assume __VERIFIER_assert_~cond == 0;assume !false; {16136#false} is VALID [2019-01-31 15:01:51,684 INFO L273 TraceCheckUtils]: 53: Hoare triple {16136#false} assume !false; {16136#false} is VALID [2019-01-31 15:01:51,689 INFO L134 CoverageAnalysis]: Checked inductivity of 650 backedges. 0 proven. 650 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-31 15:01:51,689 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-31 15:01:51,689 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-01-31 15:01:51,690 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-01-31 15:01:51,690 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-01-31 15:01:51,690 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-31 15:01:51,690 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 38 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 38 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-01-31 15:01:51,698 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-31 15:01:51,698 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2019-01-31 15:01:51,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-31 15:01:51,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-31 15:01:51,767 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-31 15:01:53,652 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2019-01-31 15:01:53,654 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-01-31 15:01:53,660 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-31 15:01:53,660 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:15, output treesize:14 [2019-01-31 15:01:53,663 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-01-31 15:01:53,663 WARN L398 uantifierElimination]: Input elimination task: ∃ [v_ULTIMATE.start_main_~str2~6_475]. (and (<= ULTIMATE.start_main_~MAX~6 25) (= (store v_ULTIMATE.start_main_~str2~6_475 24 (select ULTIMATE.start_main_~str1~6 0)) ULTIMATE.start_main_~str2~6) (<= 25 ULTIMATE.start_main_~MAX~6)) [2019-01-31 15:01:53,663 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (and (<= ULTIMATE.start_main_~MAX~6 25) (<= 25 ULTIMATE.start_main_~MAX~6) (= (select ULTIMATE.start_main_~str2~6 24) (select ULTIMATE.start_main_~str1~6 0))) [2019-01-31 15:01:53,741 INFO L273 TraceCheckUtils]: 0: Hoare triple {16135#true} havoc main_#res;havoc main_#t~nondet0, main_#t~nondet2, main_#t~post1, main_#t~post4, main_#t~post3, main_#t~post6, main_#t~post5, main_~MAX~6, main_~str1~6, main_~str2~6, main_~cont~6, main_~i~6, main_~j~6;main_~MAX~6 := (if main_#t~nondet0 % 4294967296 % 4294967296 <= 2147483647 then main_#t~nondet0 % 4294967296 % 4294967296 else main_#t~nondet0 % 4294967296 % 4294967296 - 4294967296);havoc main_#t~nondet0;havoc main_~str1~6;havoc main_~str2~6;havoc main_~cont~6;havoc main_~i~6;havoc main_~j~6;main_~cont~6 := 0;main_~i~6 := 0; {16137#(and (<= ULTIMATE.start_main_~i~6 0) (<= 0 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:01:53,742 INFO L273 TraceCheckUtils]: 1: Hoare triple {16137#(and (<= ULTIMATE.start_main_~i~6 0) (<= 0 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {16138#(and (<= ULTIMATE.start_main_~i~6 1) (<= 1 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:01:53,743 INFO L273 TraceCheckUtils]: 2: Hoare triple {16138#(and (<= ULTIMATE.start_main_~i~6 1) (<= 1 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {16139#(and (<= ULTIMATE.start_main_~i~6 2) (<= 2 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:01:53,744 INFO L273 TraceCheckUtils]: 3: Hoare triple {16139#(and (<= ULTIMATE.start_main_~i~6 2) (<= 2 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {16140#(and (<= 3 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 3))} is VALID [2019-01-31 15:01:53,745 INFO L273 TraceCheckUtils]: 4: Hoare triple {16140#(and (<= 3 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 3))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {16141#(and (<= ULTIMATE.start_main_~i~6 4) (<= 4 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:01:53,747 INFO L273 TraceCheckUtils]: 5: Hoare triple {16141#(and (<= ULTIMATE.start_main_~i~6 4) (<= 4 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {16142#(and (<= 5 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 5))} is VALID [2019-01-31 15:01:53,748 INFO L273 TraceCheckUtils]: 6: Hoare triple {16142#(and (<= 5 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 5))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {16143#(and (<= ULTIMATE.start_main_~i~6 6) (<= 6 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:01:53,748 INFO L273 TraceCheckUtils]: 7: Hoare triple {16143#(and (<= ULTIMATE.start_main_~i~6 6) (<= 6 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {16144#(and (<= 7 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 7))} is VALID [2019-01-31 15:01:53,749 INFO L273 TraceCheckUtils]: 8: Hoare triple {16144#(and (<= 7 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 7))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {16145#(and (<= ULTIMATE.start_main_~i~6 8) (<= 8 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:01:53,749 INFO L273 TraceCheckUtils]: 9: Hoare triple {16145#(and (<= ULTIMATE.start_main_~i~6 8) (<= 8 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {16146#(and (<= ULTIMATE.start_main_~i~6 9) (<= 9 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:01:53,750 INFO L273 TraceCheckUtils]: 10: Hoare triple {16146#(and (<= ULTIMATE.start_main_~i~6 9) (<= 9 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {16147#(and (<= ULTIMATE.start_main_~i~6 10) (<= 10 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:01:53,751 INFO L273 TraceCheckUtils]: 11: Hoare triple {16147#(and (<= ULTIMATE.start_main_~i~6 10) (<= 10 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {16148#(and (<= 11 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 11))} is VALID [2019-01-31 15:01:53,752 INFO L273 TraceCheckUtils]: 12: Hoare triple {16148#(and (<= 11 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 11))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {16149#(and (<= ULTIMATE.start_main_~i~6 12) (<= 12 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:01:53,753 INFO L273 TraceCheckUtils]: 13: Hoare triple {16149#(and (<= ULTIMATE.start_main_~i~6 12) (<= 12 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {16150#(and (<= ULTIMATE.start_main_~i~6 13) (<= 13 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:01:53,754 INFO L273 TraceCheckUtils]: 14: Hoare triple {16150#(and (<= ULTIMATE.start_main_~i~6 13) (<= 13 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {16151#(and (<= ULTIMATE.start_main_~i~6 14) (<= 14 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:01:53,755 INFO L273 TraceCheckUtils]: 15: Hoare triple {16151#(and (<= ULTIMATE.start_main_~i~6 14) (<= 14 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {16152#(and (<= 15 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 15))} is VALID [2019-01-31 15:01:53,755 INFO L273 TraceCheckUtils]: 16: Hoare triple {16152#(and (<= 15 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 15))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {16153#(and (<= 16 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 16))} is VALID [2019-01-31 15:01:53,756 INFO L273 TraceCheckUtils]: 17: Hoare triple {16153#(and (<= 16 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 16))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {16154#(and (<= ULTIMATE.start_main_~i~6 17) (<= 17 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:01:53,757 INFO L273 TraceCheckUtils]: 18: Hoare triple {16154#(and (<= ULTIMATE.start_main_~i~6 17) (<= 17 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {16155#(and (<= ULTIMATE.start_main_~i~6 18) (<= 18 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:01:53,758 INFO L273 TraceCheckUtils]: 19: Hoare triple {16155#(and (<= ULTIMATE.start_main_~i~6 18) (<= 18 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {16156#(and (<= ULTIMATE.start_main_~i~6 19) (<= 19 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:01:53,759 INFO L273 TraceCheckUtils]: 20: Hoare triple {16156#(and (<= ULTIMATE.start_main_~i~6 19) (<= 19 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {16157#(and (<= ULTIMATE.start_main_~i~6 20) (<= 20 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:01:53,760 INFO L273 TraceCheckUtils]: 21: Hoare triple {16157#(and (<= ULTIMATE.start_main_~i~6 20) (<= 20 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {16158#(and (<= ULTIMATE.start_main_~i~6 21) (<= 21 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:01:53,761 INFO L273 TraceCheckUtils]: 22: Hoare triple {16158#(and (<= ULTIMATE.start_main_~i~6 21) (<= 21 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {16159#(and (<= 22 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 22))} is VALID [2019-01-31 15:01:53,762 INFO L273 TraceCheckUtils]: 23: Hoare triple {16159#(and (<= 22 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 22))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {16160#(and (<= 23 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 23))} is VALID [2019-01-31 15:01:53,763 INFO L273 TraceCheckUtils]: 24: Hoare triple {16160#(and (<= 23 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 23))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {16264#(and (<= ULTIMATE.start_main_~i~6 24) (<= 24 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:01:53,764 INFO L273 TraceCheckUtils]: 25: Hoare triple {16264#(and (<= ULTIMATE.start_main_~i~6 24) (<= 24 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {16268#(and (<= ULTIMATE.start_main_~i~6 25) (<= 25 ULTIMATE.start_main_~MAX~6))} is VALID [2019-01-31 15:01:53,765 INFO L273 TraceCheckUtils]: 26: Hoare triple {16268#(and (<= ULTIMATE.start_main_~i~6 25) (<= 25 ULTIMATE.start_main_~MAX~6))} assume !(main_~i~6 < main_~MAX~6);main_~str1~6 := main_~str1~6[main_~MAX~6 - 1 := 0];main_~j~6 := 0;main_~i~6 := main_~MAX~6 - 1; {16272#(and (<= ULTIMATE.start_main_~MAX~6 25) (= ULTIMATE.start_main_~j~6 0) (<= 25 ULTIMATE.start_main_~MAX~6))} is VALID [2019-01-31 15:01:53,766 INFO L273 TraceCheckUtils]: 27: Hoare triple {16272#(and (<= ULTIMATE.start_main_~MAX~6 25) (= ULTIMATE.start_main_~j~6 0) (<= 25 ULTIMATE.start_main_~MAX~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {16276#(and (<= ULTIMATE.start_main_~MAX~6 25) (= ULTIMATE.start_main_~j~6 1) (<= 25 ULTIMATE.start_main_~MAX~6))} is VALID [2019-01-31 15:01:53,767 INFO L273 TraceCheckUtils]: 28: Hoare triple {16276#(and (<= ULTIMATE.start_main_~MAX~6 25) (= ULTIMATE.start_main_~j~6 1) (<= 25 ULTIMATE.start_main_~MAX~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {16280#(and (<= ULTIMATE.start_main_~MAX~6 25) (<= 25 ULTIMATE.start_main_~MAX~6) (= ULTIMATE.start_main_~j~6 2))} is VALID [2019-01-31 15:01:53,768 INFO L273 TraceCheckUtils]: 29: Hoare triple {16280#(and (<= ULTIMATE.start_main_~MAX~6 25) (<= 25 ULTIMATE.start_main_~MAX~6) (= ULTIMATE.start_main_~j~6 2))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {16284#(and (<= ULTIMATE.start_main_~MAX~6 25) (<= 25 ULTIMATE.start_main_~MAX~6) (= ULTIMATE.start_main_~j~6 3))} is VALID [2019-01-31 15:01:53,768 INFO L273 TraceCheckUtils]: 30: Hoare triple {16284#(and (<= ULTIMATE.start_main_~MAX~6 25) (<= 25 ULTIMATE.start_main_~MAX~6) (= ULTIMATE.start_main_~j~6 3))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {16288#(and (<= ULTIMATE.start_main_~MAX~6 25) (= ULTIMATE.start_main_~j~6 4) (<= 25 ULTIMATE.start_main_~MAX~6))} is VALID [2019-01-31 15:01:53,769 INFO L273 TraceCheckUtils]: 31: Hoare triple {16288#(and (<= ULTIMATE.start_main_~MAX~6 25) (= ULTIMATE.start_main_~j~6 4) (<= 25 ULTIMATE.start_main_~MAX~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {16292#(and (= ULTIMATE.start_main_~j~6 5) (<= ULTIMATE.start_main_~MAX~6 25) (<= 25 ULTIMATE.start_main_~MAX~6))} is VALID [2019-01-31 15:01:53,770 INFO L273 TraceCheckUtils]: 32: Hoare triple {16292#(and (= ULTIMATE.start_main_~j~6 5) (<= ULTIMATE.start_main_~MAX~6 25) (<= 25 ULTIMATE.start_main_~MAX~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {16296#(and (<= ULTIMATE.start_main_~MAX~6 25) (<= 25 ULTIMATE.start_main_~MAX~6) (= ULTIMATE.start_main_~j~6 6))} is VALID [2019-01-31 15:01:53,771 INFO L273 TraceCheckUtils]: 33: Hoare triple {16296#(and (<= ULTIMATE.start_main_~MAX~6 25) (<= 25 ULTIMATE.start_main_~MAX~6) (= ULTIMATE.start_main_~j~6 6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {16300#(and (= ULTIMATE.start_main_~j~6 7) (<= ULTIMATE.start_main_~MAX~6 25) (<= 25 ULTIMATE.start_main_~MAX~6))} is VALID [2019-01-31 15:01:53,771 INFO L273 TraceCheckUtils]: 34: Hoare triple {16300#(and (= ULTIMATE.start_main_~j~6 7) (<= ULTIMATE.start_main_~MAX~6 25) (<= 25 ULTIMATE.start_main_~MAX~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {16304#(and (<= ULTIMATE.start_main_~MAX~6 25) (= ULTIMATE.start_main_~j~6 8) (<= 25 ULTIMATE.start_main_~MAX~6))} is VALID [2019-01-31 15:01:53,772 INFO L273 TraceCheckUtils]: 35: Hoare triple {16304#(and (<= ULTIMATE.start_main_~MAX~6 25) (= ULTIMATE.start_main_~j~6 8) (<= 25 ULTIMATE.start_main_~MAX~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {16308#(and (= ULTIMATE.start_main_~j~6 9) (<= ULTIMATE.start_main_~MAX~6 25) (<= 25 ULTIMATE.start_main_~MAX~6))} is VALID [2019-01-31 15:01:53,773 INFO L273 TraceCheckUtils]: 36: Hoare triple {16308#(and (= ULTIMATE.start_main_~j~6 9) (<= ULTIMATE.start_main_~MAX~6 25) (<= 25 ULTIMATE.start_main_~MAX~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {16312#(and (= ULTIMATE.start_main_~j~6 10) (<= ULTIMATE.start_main_~MAX~6 25) (<= 25 ULTIMATE.start_main_~MAX~6))} is VALID [2019-01-31 15:01:53,774 INFO L273 TraceCheckUtils]: 37: Hoare triple {16312#(and (= ULTIMATE.start_main_~j~6 10) (<= ULTIMATE.start_main_~MAX~6 25) (<= 25 ULTIMATE.start_main_~MAX~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {16316#(and (<= ULTIMATE.start_main_~MAX~6 25) (<= 25 ULTIMATE.start_main_~MAX~6) (= ULTIMATE.start_main_~j~6 11))} is VALID [2019-01-31 15:01:53,775 INFO L273 TraceCheckUtils]: 38: Hoare triple {16316#(and (<= ULTIMATE.start_main_~MAX~6 25) (<= 25 ULTIMATE.start_main_~MAX~6) (= ULTIMATE.start_main_~j~6 11))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {16320#(and (= ULTIMATE.start_main_~j~6 12) (<= ULTIMATE.start_main_~MAX~6 25) (<= 25 ULTIMATE.start_main_~MAX~6))} is VALID [2019-01-31 15:01:53,775 INFO L273 TraceCheckUtils]: 39: Hoare triple {16320#(and (= ULTIMATE.start_main_~j~6 12) (<= ULTIMATE.start_main_~MAX~6 25) (<= 25 ULTIMATE.start_main_~MAX~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {16324#(and (<= ULTIMATE.start_main_~MAX~6 25) (= ULTIMATE.start_main_~j~6 13) (<= 25 ULTIMATE.start_main_~MAX~6))} is VALID [2019-01-31 15:01:53,776 INFO L273 TraceCheckUtils]: 40: Hoare triple {16324#(and (<= ULTIMATE.start_main_~MAX~6 25) (= ULTIMATE.start_main_~j~6 13) (<= 25 ULTIMATE.start_main_~MAX~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {16328#(and (<= ULTIMATE.start_main_~MAX~6 25) (= ULTIMATE.start_main_~j~6 14) (<= 25 ULTIMATE.start_main_~MAX~6))} is VALID [2019-01-31 15:01:53,777 INFO L273 TraceCheckUtils]: 41: Hoare triple {16328#(and (<= ULTIMATE.start_main_~MAX~6 25) (= ULTIMATE.start_main_~j~6 14) (<= 25 ULTIMATE.start_main_~MAX~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {16332#(and (<= ULTIMATE.start_main_~MAX~6 25) (<= 25 ULTIMATE.start_main_~MAX~6) (= ULTIMATE.start_main_~j~6 15))} is VALID [2019-01-31 15:01:53,778 INFO L273 TraceCheckUtils]: 42: Hoare triple {16332#(and (<= ULTIMATE.start_main_~MAX~6 25) (<= 25 ULTIMATE.start_main_~MAX~6) (= ULTIMATE.start_main_~j~6 15))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {16336#(and (<= ULTIMATE.start_main_~MAX~6 25) (= ULTIMATE.start_main_~j~6 16) (<= 25 ULTIMATE.start_main_~MAX~6))} is VALID [2019-01-31 15:01:53,779 INFO L273 TraceCheckUtils]: 43: Hoare triple {16336#(and (<= ULTIMATE.start_main_~MAX~6 25) (= ULTIMATE.start_main_~j~6 16) (<= 25 ULTIMATE.start_main_~MAX~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {16340#(and (<= ULTIMATE.start_main_~MAX~6 25) (= ULTIMATE.start_main_~j~6 17) (<= 25 ULTIMATE.start_main_~MAX~6))} is VALID [2019-01-31 15:01:53,779 INFO L273 TraceCheckUtils]: 44: Hoare triple {16340#(and (<= ULTIMATE.start_main_~MAX~6 25) (= ULTIMATE.start_main_~j~6 17) (<= 25 ULTIMATE.start_main_~MAX~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {16344#(and (<= ULTIMATE.start_main_~MAX~6 25) (= ULTIMATE.start_main_~j~6 18) (<= 25 ULTIMATE.start_main_~MAX~6))} is VALID [2019-01-31 15:01:53,780 INFO L273 TraceCheckUtils]: 45: Hoare triple {16344#(and (<= ULTIMATE.start_main_~MAX~6 25) (= ULTIMATE.start_main_~j~6 18) (<= 25 ULTIMATE.start_main_~MAX~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {16348#(and (= ULTIMATE.start_main_~j~6 19) (<= ULTIMATE.start_main_~MAX~6 25) (<= 25 ULTIMATE.start_main_~MAX~6))} is VALID [2019-01-31 15:01:53,781 INFO L273 TraceCheckUtils]: 46: Hoare triple {16348#(and (= ULTIMATE.start_main_~j~6 19) (<= ULTIMATE.start_main_~MAX~6 25) (<= 25 ULTIMATE.start_main_~MAX~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {16352#(and (<= ULTIMATE.start_main_~MAX~6 25) (= ULTIMATE.start_main_~j~6 20) (<= 25 ULTIMATE.start_main_~MAX~6))} is VALID [2019-01-31 15:01:53,782 INFO L273 TraceCheckUtils]: 47: Hoare triple {16352#(and (<= ULTIMATE.start_main_~MAX~6 25) (= ULTIMATE.start_main_~j~6 20) (<= 25 ULTIMATE.start_main_~MAX~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {16356#(and (<= ULTIMATE.start_main_~MAX~6 25) (= ULTIMATE.start_main_~j~6 21) (<= 25 ULTIMATE.start_main_~MAX~6))} is VALID [2019-01-31 15:01:53,782 INFO L273 TraceCheckUtils]: 48: Hoare triple {16356#(and (<= ULTIMATE.start_main_~MAX~6 25) (= ULTIMATE.start_main_~j~6 21) (<= 25 ULTIMATE.start_main_~MAX~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {16360#(and (<= ULTIMATE.start_main_~MAX~6 25) (<= 25 ULTIMATE.start_main_~MAX~6) (= ULTIMATE.start_main_~j~6 22))} is VALID [2019-01-31 15:01:53,783 INFO L273 TraceCheckUtils]: 49: Hoare triple {16360#(and (<= ULTIMATE.start_main_~MAX~6 25) (<= 25 ULTIMATE.start_main_~MAX~6) (= ULTIMATE.start_main_~j~6 22))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {16364#(and (<= ULTIMATE.start_main_~MAX~6 25) (<= 25 ULTIMATE.start_main_~MAX~6) (= ULTIMATE.start_main_~j~6 23))} is VALID [2019-01-31 15:01:53,784 INFO L273 TraceCheckUtils]: 50: Hoare triple {16364#(and (<= ULTIMATE.start_main_~MAX~6 25) (<= 25 ULTIMATE.start_main_~MAX~6) (= ULTIMATE.start_main_~j~6 23))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {16368#(and (<= ULTIMATE.start_main_~MAX~6 25) (= ULTIMATE.start_main_~j~6 24) (<= 25 ULTIMATE.start_main_~MAX~6))} is VALID [2019-01-31 15:01:53,785 INFO L273 TraceCheckUtils]: 51: Hoare triple {16368#(and (<= ULTIMATE.start_main_~MAX~6 25) (= ULTIMATE.start_main_~j~6 24) (<= 25 ULTIMATE.start_main_~MAX~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {16372#(and (<= ULTIMATE.start_main_~MAX~6 25) (<= 25 ULTIMATE.start_main_~MAX~6) (= (select ULTIMATE.start_main_~str2~6 24) (select ULTIMATE.start_main_~str1~6 0)))} is VALID [2019-01-31 15:01:53,786 INFO L273 TraceCheckUtils]: 52: Hoare triple {16372#(and (<= ULTIMATE.start_main_~MAX~6 25) (<= 25 ULTIMATE.start_main_~MAX~6) (= (select ULTIMATE.start_main_~str2~6 24) (select ULTIMATE.start_main_~str1~6 0)))} assume !(main_~i~6 >= 0);main_~j~6 := main_~MAX~6 - 1;main_~i~6 := 0;assume !!(main_~i~6 < main_~MAX~6);__VERIFIER_assert_#in~cond := (if main_~str1~6[main_~i~6] == main_~str2~6[main_~j~6] then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond;assume __VERIFIER_assert_~cond == 0;assume !false; {16136#false} is VALID [2019-01-31 15:01:53,786 INFO L273 TraceCheckUtils]: 53: Hoare triple {16136#false} assume !false; {16136#false} is VALID [2019-01-31 15:01:53,793 INFO L134 CoverageAnalysis]: Checked inductivity of 650 backedges. 0 proven. 650 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-31 15:01:53,793 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2019-01-31 15:01:53,821 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 5 [2019-01-31 15:01:53,823 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-01-31 15:01:53,826 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-31 15:01:53,827 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:14, output treesize:5 [2019-01-31 15:01:53,829 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-01-31 15:01:53,829 WARN L398 uantifierElimination]: Input elimination task: ∀ [ULTIMATE.start_main_~str2~6, ULTIMATE.start_main_~str1~6]. (let ((.cse0 (select ULTIMATE.start_main_~str1~6 0))) (= .cse0 (select (store ULTIMATE.start_main_~str2~6 ULTIMATE.start_main_~j~6 .cse0) (+ ULTIMATE.start_main_~MAX~6 (- 1))))) [2019-01-31 15:01:53,829 WARN L399 uantifierElimination]: ElimStorePlain result: ∀ []. (= (+ ULTIMATE.start_main_~j~6 1) ULTIMATE.start_main_~MAX~6) [2019-01-31 15:01:54,895 INFO L273 TraceCheckUtils]: 53: Hoare triple {16136#false} assume !false; {16136#false} is VALID [2019-01-31 15:01:54,896 INFO L273 TraceCheckUtils]: 52: Hoare triple {16188#(= (select ULTIMATE.start_main_~str1~6 0) (select ULTIMATE.start_main_~str2~6 (+ ULTIMATE.start_main_~MAX~6 (- 1))))} assume !(main_~i~6 >= 0);main_~j~6 := main_~MAX~6 - 1;main_~i~6 := 0;assume !!(main_~i~6 < main_~MAX~6);__VERIFIER_assert_#in~cond := (if main_~str1~6[main_~i~6] == main_~str2~6[main_~j~6] then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond;assume __VERIFIER_assert_~cond == 0;assume !false; {16136#false} is VALID [2019-01-31 15:01:54,897 INFO L273 TraceCheckUtils]: 51: Hoare triple {16187#(= (+ ULTIMATE.start_main_~j~6 1) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {16188#(= (select ULTIMATE.start_main_~str1~6 0) (select ULTIMATE.start_main_~str2~6 (+ ULTIMATE.start_main_~MAX~6 (- 1))))} is VALID [2019-01-31 15:01:54,898 INFO L273 TraceCheckUtils]: 50: Hoare triple {16186#(= (+ ULTIMATE.start_main_~j~6 2) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {16187#(= (+ ULTIMATE.start_main_~j~6 1) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:01:54,899 INFO L273 TraceCheckUtils]: 49: Hoare triple {16185#(= (+ ULTIMATE.start_main_~j~6 3) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {16186#(= (+ ULTIMATE.start_main_~j~6 2) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:01:54,900 INFO L273 TraceCheckUtils]: 48: Hoare triple {16184#(= (+ ULTIMATE.start_main_~j~6 4) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {16185#(= (+ ULTIMATE.start_main_~j~6 3) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:01:54,901 INFO L273 TraceCheckUtils]: 47: Hoare triple {16183#(= (+ ULTIMATE.start_main_~j~6 5) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {16184#(= (+ ULTIMATE.start_main_~j~6 4) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:01:54,902 INFO L273 TraceCheckUtils]: 46: Hoare triple {16182#(= (+ ULTIMATE.start_main_~j~6 6) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {16183#(= (+ ULTIMATE.start_main_~j~6 5) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:01:54,903 INFO L273 TraceCheckUtils]: 45: Hoare triple {16181#(= (+ ULTIMATE.start_main_~j~6 7) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {16182#(= (+ ULTIMATE.start_main_~j~6 6) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:01:54,904 INFO L273 TraceCheckUtils]: 44: Hoare triple {16180#(= (+ ULTIMATE.start_main_~j~6 8) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {16181#(= (+ ULTIMATE.start_main_~j~6 7) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:01:54,905 INFO L273 TraceCheckUtils]: 43: Hoare triple {16179#(= (+ ULTIMATE.start_main_~j~6 9) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {16180#(= (+ ULTIMATE.start_main_~j~6 8) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:01:54,906 INFO L273 TraceCheckUtils]: 42: Hoare triple {16178#(= (+ ULTIMATE.start_main_~j~6 10) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {16179#(= (+ ULTIMATE.start_main_~j~6 9) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:01:54,907 INFO L273 TraceCheckUtils]: 41: Hoare triple {16177#(= (+ ULTIMATE.start_main_~j~6 11) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {16178#(= (+ ULTIMATE.start_main_~j~6 10) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:01:54,908 INFO L273 TraceCheckUtils]: 40: Hoare triple {16176#(= (+ ULTIMATE.start_main_~j~6 12) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {16177#(= (+ ULTIMATE.start_main_~j~6 11) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:01:54,909 INFO L273 TraceCheckUtils]: 39: Hoare triple {16175#(= (+ ULTIMATE.start_main_~j~6 13) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {16176#(= (+ ULTIMATE.start_main_~j~6 12) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:01:54,931 INFO L273 TraceCheckUtils]: 38: Hoare triple {16174#(= (+ ULTIMATE.start_main_~j~6 14) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {16175#(= (+ ULTIMATE.start_main_~j~6 13) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:01:54,932 INFO L273 TraceCheckUtils]: 37: Hoare triple {16173#(= (+ ULTIMATE.start_main_~j~6 15) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {16174#(= (+ ULTIMATE.start_main_~j~6 14) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:01:54,933 INFO L273 TraceCheckUtils]: 36: Hoare triple {16172#(= (+ ULTIMATE.start_main_~j~6 16) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {16173#(= (+ ULTIMATE.start_main_~j~6 15) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:01:54,933 INFO L273 TraceCheckUtils]: 35: Hoare triple {16171#(= (+ ULTIMATE.start_main_~j~6 17) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {16172#(= (+ ULTIMATE.start_main_~j~6 16) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:01:54,934 INFO L273 TraceCheckUtils]: 34: Hoare triple {16170#(= (+ ULTIMATE.start_main_~j~6 18) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {16171#(= (+ ULTIMATE.start_main_~j~6 17) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:01:54,935 INFO L273 TraceCheckUtils]: 33: Hoare triple {16169#(= (+ ULTIMATE.start_main_~j~6 19) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {16170#(= (+ ULTIMATE.start_main_~j~6 18) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:01:54,936 INFO L273 TraceCheckUtils]: 32: Hoare triple {16168#(= (+ ULTIMATE.start_main_~j~6 20) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {16169#(= (+ ULTIMATE.start_main_~j~6 19) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:01:54,937 INFO L273 TraceCheckUtils]: 31: Hoare triple {16167#(= (+ ULTIMATE.start_main_~j~6 21) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {16168#(= (+ ULTIMATE.start_main_~j~6 20) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:01:54,938 INFO L273 TraceCheckUtils]: 30: Hoare triple {16166#(= (+ ULTIMATE.start_main_~j~6 22) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {16167#(= (+ ULTIMATE.start_main_~j~6 21) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:01:54,939 INFO L273 TraceCheckUtils]: 29: Hoare triple {16165#(= (+ ULTIMATE.start_main_~j~6 23) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {16166#(= (+ ULTIMATE.start_main_~j~6 22) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:01:54,940 INFO L273 TraceCheckUtils]: 28: Hoare triple {16164#(= (+ ULTIMATE.start_main_~j~6 24) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {16165#(= (+ ULTIMATE.start_main_~j~6 23) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:01:54,941 INFO L273 TraceCheckUtils]: 27: Hoare triple {16163#(= (+ ULTIMATE.start_main_~j~6 25) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {16164#(= (+ ULTIMATE.start_main_~j~6 24) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:01:54,942 INFO L273 TraceCheckUtils]: 26: Hoare triple {16162#(or (<= (+ ULTIMATE.start_main_~i~6 1) ULTIMATE.start_main_~MAX~6) (= 25 ULTIMATE.start_main_~MAX~6))} assume !(main_~i~6 < main_~MAX~6);main_~str1~6 := main_~str1~6[main_~MAX~6 - 1 := 0];main_~j~6 := 0;main_~i~6 := main_~MAX~6 - 1; {16163#(= (+ ULTIMATE.start_main_~j~6 25) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:01:54,964 INFO L273 TraceCheckUtils]: 25: Hoare triple {16264#(and (<= ULTIMATE.start_main_~i~6 24) (<= 24 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {16162#(or (<= (+ ULTIMATE.start_main_~i~6 1) ULTIMATE.start_main_~MAX~6) (= 25 ULTIMATE.start_main_~MAX~6))} is VALID [2019-01-31 15:01:54,979 INFO L273 TraceCheckUtils]: 24: Hoare triple {16160#(and (<= 23 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 23))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {16264#(and (<= ULTIMATE.start_main_~i~6 24) (<= 24 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:01:54,994 INFO L273 TraceCheckUtils]: 23: Hoare triple {16159#(and (<= 22 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 22))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {16160#(and (<= 23 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 23))} is VALID [2019-01-31 15:01:55,003 INFO L273 TraceCheckUtils]: 22: Hoare triple {16158#(and (<= ULTIMATE.start_main_~i~6 21) (<= 21 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {16159#(and (<= 22 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 22))} is VALID [2019-01-31 15:01:55,018 INFO L273 TraceCheckUtils]: 21: Hoare triple {16157#(and (<= ULTIMATE.start_main_~i~6 20) (<= 20 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {16158#(and (<= ULTIMATE.start_main_~i~6 21) (<= 21 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:01:55,027 INFO L273 TraceCheckUtils]: 20: Hoare triple {16156#(and (<= ULTIMATE.start_main_~i~6 19) (<= 19 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {16157#(and (<= ULTIMATE.start_main_~i~6 20) (<= 20 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:01:55,039 INFO L273 TraceCheckUtils]: 19: Hoare triple {16155#(and (<= ULTIMATE.start_main_~i~6 18) (<= 18 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {16156#(and (<= ULTIMATE.start_main_~i~6 19) (<= 19 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:01:55,052 INFO L273 TraceCheckUtils]: 18: Hoare triple {16154#(and (<= ULTIMATE.start_main_~i~6 17) (<= 17 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {16155#(and (<= ULTIMATE.start_main_~i~6 18) (<= 18 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:01:55,065 INFO L273 TraceCheckUtils]: 17: Hoare triple {16153#(and (<= 16 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 16))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {16154#(and (<= ULTIMATE.start_main_~i~6 17) (<= 17 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:01:55,080 INFO L273 TraceCheckUtils]: 16: Hoare triple {16152#(and (<= 15 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 15))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {16153#(and (<= 16 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 16))} is VALID [2019-01-31 15:01:55,089 INFO L273 TraceCheckUtils]: 15: Hoare triple {16151#(and (<= ULTIMATE.start_main_~i~6 14) (<= 14 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {16152#(and (<= 15 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 15))} is VALID [2019-01-31 15:01:55,102 INFO L273 TraceCheckUtils]: 14: Hoare triple {16150#(and (<= ULTIMATE.start_main_~i~6 13) (<= 13 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {16151#(and (<= ULTIMATE.start_main_~i~6 14) (<= 14 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:01:55,114 INFO L273 TraceCheckUtils]: 13: Hoare triple {16149#(and (<= ULTIMATE.start_main_~i~6 12) (<= 12 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {16150#(and (<= ULTIMATE.start_main_~i~6 13) (<= 13 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:01:55,127 INFO L273 TraceCheckUtils]: 12: Hoare triple {16148#(and (<= 11 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 11))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {16149#(and (<= ULTIMATE.start_main_~i~6 12) (<= 12 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:01:55,140 INFO L273 TraceCheckUtils]: 11: Hoare triple {16147#(and (<= ULTIMATE.start_main_~i~6 10) (<= 10 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {16148#(and (<= 11 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 11))} is VALID [2019-01-31 15:01:55,152 INFO L273 TraceCheckUtils]: 10: Hoare triple {16146#(and (<= ULTIMATE.start_main_~i~6 9) (<= 9 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {16147#(and (<= ULTIMATE.start_main_~i~6 10) (<= 10 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:01:55,154 INFO L273 TraceCheckUtils]: 9: Hoare triple {16145#(and (<= ULTIMATE.start_main_~i~6 8) (<= 8 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {16146#(and (<= ULTIMATE.start_main_~i~6 9) (<= 9 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:01:55,155 INFO L273 TraceCheckUtils]: 8: Hoare triple {16144#(and (<= 7 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 7))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {16145#(and (<= ULTIMATE.start_main_~i~6 8) (<= 8 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:01:55,156 INFO L273 TraceCheckUtils]: 7: Hoare triple {16143#(and (<= ULTIMATE.start_main_~i~6 6) (<= 6 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {16144#(and (<= 7 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 7))} is VALID [2019-01-31 15:01:55,158 INFO L273 TraceCheckUtils]: 6: Hoare triple {16142#(and (<= 5 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 5))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {16143#(and (<= ULTIMATE.start_main_~i~6 6) (<= 6 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:01:55,159 INFO L273 TraceCheckUtils]: 5: Hoare triple {16141#(and (<= ULTIMATE.start_main_~i~6 4) (<= 4 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {16142#(and (<= 5 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 5))} is VALID [2019-01-31 15:01:55,160 INFO L273 TraceCheckUtils]: 4: Hoare triple {16140#(and (<= 3 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 3))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {16141#(and (<= ULTIMATE.start_main_~i~6 4) (<= 4 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:01:55,160 INFO L273 TraceCheckUtils]: 3: Hoare triple {16139#(and (<= ULTIMATE.start_main_~i~6 2) (<= 2 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {16140#(and (<= 3 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 3))} is VALID [2019-01-31 15:01:55,161 INFO L273 TraceCheckUtils]: 2: Hoare triple {16138#(and (<= ULTIMATE.start_main_~i~6 1) (<= 1 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {16139#(and (<= ULTIMATE.start_main_~i~6 2) (<= 2 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:01:55,162 INFO L273 TraceCheckUtils]: 1: Hoare triple {16137#(and (<= ULTIMATE.start_main_~i~6 0) (<= 0 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {16138#(and (<= ULTIMATE.start_main_~i~6 1) (<= 1 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:01:55,163 INFO L273 TraceCheckUtils]: 0: Hoare triple {16135#true} havoc main_#res;havoc main_#t~nondet0, main_#t~nondet2, main_#t~post1, main_#t~post4, main_#t~post3, main_#t~post6, main_#t~post5, main_~MAX~6, main_~str1~6, main_~str2~6, main_~cont~6, main_~i~6, main_~j~6;main_~MAX~6 := (if main_#t~nondet0 % 4294967296 % 4294967296 <= 2147483647 then main_#t~nondet0 % 4294967296 % 4294967296 else main_#t~nondet0 % 4294967296 % 4294967296 - 4294967296);havoc main_#t~nondet0;havoc main_~str1~6;havoc main_~str2~6;havoc main_~cont~6;havoc main_~i~6;havoc main_~j~6;main_~cont~6 := 0;main_~i~6 := 0; {16137#(and (<= ULTIMATE.start_main_~i~6 0) (<= 0 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:01:55,168 INFO L134 CoverageAnalysis]: Checked inductivity of 650 backedges. 0 proven. 650 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-31 15:01:55,187 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-01-31 15:01:55,188 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [53, 53, 53] total 81 [2019-01-31 15:01:55,188 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-01-31 15:01:55,188 INFO L78 Accepts]: Start accepts. Automaton has 82 states. Word has length 54 [2019-01-31 15:01:55,188 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-01-31 15:01:55,188 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 82 states. [2019-01-31 15:01:55,265 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 83 edges. 83 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-01-31 15:01:55,265 INFO L459 AbstractCegarLoop]: Interpolant automaton has 82 states [2019-01-31 15:01:55,266 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 82 interpolants. [2019-01-31 15:01:55,266 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=241, Invalid=6401, Unknown=0, NotChecked=0, Total=6642 [2019-01-31 15:01:55,266 INFO L87 Difference]: Start difference. First operand 55 states and 56 transitions. Second operand 82 states. [2019-01-31 15:02:06,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 15:02:06,965 INFO L93 Difference]: Finished difference Result 84 states and 86 transitions. [2019-01-31 15:02:06,965 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2019-01-31 15:02:06,965 INFO L78 Accepts]: Start accepts. Automaton has 82 states. Word has length 54 [2019-01-31 15:02:06,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-31 15:02:06,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82 states. [2019-01-31 15:02:06,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 62 transitions. [2019-01-31 15:02:06,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82 states. [2019-01-31 15:02:06,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 62 transitions. [2019-01-31 15:02:06,967 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 57 states and 62 transitions. [2019-01-31 15:02:07,043 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 62 edges. 62 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-01-31 15:02:07,044 INFO L225 Difference]: With dead ends: 84 [2019-01-31 15:02:07,044 INFO L226 Difference]: Without dead ends: 56 [2019-01-31 15:02:07,045 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 187 GetRequests, 59 SyntacticMatches, 20 SemanticMatches, 108 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1961 ImplicationChecksByTransitivity, 5.7s TimeCoverageRelationStatistics Valid=510, Invalid=11480, Unknown=0, NotChecked=0, Total=11990 [2019-01-31 15:02:07,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2019-01-31 15:02:08,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2019-01-31 15:02:08,111 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-01-31 15:02:08,112 INFO L82 GeneralOperation]: Start isEquivalent. First operand 56 states. Second operand 56 states. [2019-01-31 15:02:08,112 INFO L74 IsIncluded]: Start isIncluded. First operand 56 states. Second operand 56 states. [2019-01-31 15:02:08,112 INFO L87 Difference]: Start difference. First operand 56 states. Second operand 56 states. [2019-01-31 15:02:08,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 15:02:08,113 INFO L93 Difference]: Finished difference Result 56 states and 57 transitions. [2019-01-31 15:02:08,113 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 57 transitions. [2019-01-31 15:02:08,113 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-31 15:02:08,113 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-01-31 15:02:08,114 INFO L74 IsIncluded]: Start isIncluded. First operand 56 states. Second operand 56 states. [2019-01-31 15:02:08,114 INFO L87 Difference]: Start difference. First operand 56 states. Second operand 56 states. [2019-01-31 15:02:08,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 15:02:08,114 INFO L93 Difference]: Finished difference Result 56 states and 57 transitions. [2019-01-31 15:02:08,114 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 57 transitions. [2019-01-31 15:02:08,115 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-31 15:02:08,115 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-01-31 15:02:08,115 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-01-31 15:02:08,115 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-01-31 15:02:08,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2019-01-31 15:02:08,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 57 transitions. [2019-01-31 15:02:08,116 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 57 transitions. Word has length 54 [2019-01-31 15:02:08,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-31 15:02:08,116 INFO L480 AbstractCegarLoop]: Abstraction has 56 states and 57 transitions. [2019-01-31 15:02:08,116 INFO L481 AbstractCegarLoop]: Interpolant automaton has 82 states. [2019-01-31 15:02:08,116 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 57 transitions. [2019-01-31 15:02:08,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2019-01-31 15:02:08,117 INFO L394 BasicCegarLoop]: Found error trace [2019-01-31 15:02:08,117 INFO L402 BasicCegarLoop]: trace histogram [26, 25, 1, 1, 1, 1] [2019-01-31 15:02:08,117 INFO L423 AbstractCegarLoop]: === Iteration 40 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2019-01-31 15:02:08,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-31 15:02:08,117 INFO L82 PathProgramCache]: Analyzing trace with hash 488997932, now seen corresponding path program 38 times [2019-01-31 15:02:08,117 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-01-31 15:02:08,118 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-31 15:02:08,118 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-31 15:02:08,118 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-31 15:02:08,118 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-01-31 15:02:08,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-31 15:02:08,726 INFO L273 TraceCheckUtils]: 0: Hoare triple {16980#true} havoc main_#res;havoc main_#t~nondet0, main_#t~nondet2, main_#t~post1, main_#t~post4, main_#t~post3, main_#t~post6, main_#t~post5, main_~MAX~6, main_~str1~6, main_~str2~6, main_~cont~6, main_~i~6, main_~j~6;main_~MAX~6 := (if main_#t~nondet0 % 4294967296 % 4294967296 <= 2147483647 then main_#t~nondet0 % 4294967296 % 4294967296 else main_#t~nondet0 % 4294967296 % 4294967296 - 4294967296);havoc main_#t~nondet0;havoc main_~str1~6;havoc main_~str2~6;havoc main_~cont~6;havoc main_~i~6;havoc main_~j~6;main_~cont~6 := 0;main_~i~6 := 0; {16982#(<= 0 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:02:08,727 INFO L273 TraceCheckUtils]: 1: Hoare triple {16982#(<= 0 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {16983#(<= 1 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:02:08,728 INFO L273 TraceCheckUtils]: 2: Hoare triple {16983#(<= 1 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {16984#(<= 2 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:02:08,729 INFO L273 TraceCheckUtils]: 3: Hoare triple {16984#(<= 2 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {16985#(<= 3 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:02:08,729 INFO L273 TraceCheckUtils]: 4: Hoare triple {16985#(<= 3 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {16986#(<= 4 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:02:08,730 INFO L273 TraceCheckUtils]: 5: Hoare triple {16986#(<= 4 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {16987#(<= 5 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:02:08,731 INFO L273 TraceCheckUtils]: 6: Hoare triple {16987#(<= 5 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {16988#(<= 6 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:02:08,732 INFO L273 TraceCheckUtils]: 7: Hoare triple {16988#(<= 6 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {16989#(<= 7 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:02:08,733 INFO L273 TraceCheckUtils]: 8: Hoare triple {16989#(<= 7 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {16990#(<= 8 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:02:08,734 INFO L273 TraceCheckUtils]: 9: Hoare triple {16990#(<= 8 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {16991#(<= 9 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:02:08,735 INFO L273 TraceCheckUtils]: 10: Hoare triple {16991#(<= 9 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {16992#(<= 10 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:02:08,736 INFO L273 TraceCheckUtils]: 11: Hoare triple {16992#(<= 10 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {16993#(<= 11 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:02:08,736 INFO L273 TraceCheckUtils]: 12: Hoare triple {16993#(<= 11 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {16994#(<= 12 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:02:08,737 INFO L273 TraceCheckUtils]: 13: Hoare triple {16994#(<= 12 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {16995#(<= 13 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:02:08,738 INFO L273 TraceCheckUtils]: 14: Hoare triple {16995#(<= 13 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {16996#(<= 14 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:02:08,739 INFO L273 TraceCheckUtils]: 15: Hoare triple {16996#(<= 14 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {16997#(<= 15 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:02:08,740 INFO L273 TraceCheckUtils]: 16: Hoare triple {16997#(<= 15 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {16998#(<= 16 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:02:08,741 INFO L273 TraceCheckUtils]: 17: Hoare triple {16998#(<= 16 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {16999#(<= 17 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:02:08,742 INFO L273 TraceCheckUtils]: 18: Hoare triple {16999#(<= 17 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {17000#(<= 18 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:02:08,742 INFO L273 TraceCheckUtils]: 19: Hoare triple {17000#(<= 18 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {17001#(<= 19 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:02:08,743 INFO L273 TraceCheckUtils]: 20: Hoare triple {17001#(<= 19 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {17002#(<= 20 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:02:08,744 INFO L273 TraceCheckUtils]: 21: Hoare triple {17002#(<= 20 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {17003#(<= 21 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:02:08,745 INFO L273 TraceCheckUtils]: 22: Hoare triple {17003#(<= 21 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {17004#(<= 22 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:02:08,746 INFO L273 TraceCheckUtils]: 23: Hoare triple {17004#(<= 22 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {17005#(<= 23 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:02:08,747 INFO L273 TraceCheckUtils]: 24: Hoare triple {17005#(<= 23 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {17006#(<= 24 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:02:08,748 INFO L273 TraceCheckUtils]: 25: Hoare triple {17006#(<= 24 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {17007#(<= 25 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:02:08,748 INFO L273 TraceCheckUtils]: 26: Hoare triple {17007#(<= 25 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {17008#(<= 26 ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:02:08,749 INFO L273 TraceCheckUtils]: 27: Hoare triple {17008#(<= 26 ULTIMATE.start_main_~MAX~6)} assume !(main_~i~6 < main_~MAX~6);main_~str1~6 := main_~str1~6[main_~MAX~6 - 1 := 0];main_~j~6 := 0;main_~i~6 := main_~MAX~6 - 1; {17007#(<= 25 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:02:08,750 INFO L273 TraceCheckUtils]: 28: Hoare triple {17007#(<= 25 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {17006#(<= 24 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:02:08,751 INFO L273 TraceCheckUtils]: 29: Hoare triple {17006#(<= 24 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {17005#(<= 23 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:02:08,752 INFO L273 TraceCheckUtils]: 30: Hoare triple {17005#(<= 23 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {17004#(<= 22 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:02:08,753 INFO L273 TraceCheckUtils]: 31: Hoare triple {17004#(<= 22 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {17003#(<= 21 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:02:08,754 INFO L273 TraceCheckUtils]: 32: Hoare triple {17003#(<= 21 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {17002#(<= 20 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:02:08,755 INFO L273 TraceCheckUtils]: 33: Hoare triple {17002#(<= 20 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {17001#(<= 19 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:02:08,755 INFO L273 TraceCheckUtils]: 34: Hoare triple {17001#(<= 19 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {17000#(<= 18 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:02:08,756 INFO L273 TraceCheckUtils]: 35: Hoare triple {17000#(<= 18 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {16999#(<= 17 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:02:08,757 INFO L273 TraceCheckUtils]: 36: Hoare triple {16999#(<= 17 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {16998#(<= 16 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:02:08,758 INFO L273 TraceCheckUtils]: 37: Hoare triple {16998#(<= 16 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {16997#(<= 15 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:02:08,759 INFO L273 TraceCheckUtils]: 38: Hoare triple {16997#(<= 15 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {16996#(<= 14 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:02:08,760 INFO L273 TraceCheckUtils]: 39: Hoare triple {16996#(<= 14 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {16995#(<= 13 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:02:08,761 INFO L273 TraceCheckUtils]: 40: Hoare triple {16995#(<= 13 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {16994#(<= 12 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:02:08,762 INFO L273 TraceCheckUtils]: 41: Hoare triple {16994#(<= 12 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {16993#(<= 11 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:02:08,762 INFO L273 TraceCheckUtils]: 42: Hoare triple {16993#(<= 11 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {16992#(<= 10 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:02:08,763 INFO L273 TraceCheckUtils]: 43: Hoare triple {16992#(<= 10 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {16991#(<= 9 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:02:08,764 INFO L273 TraceCheckUtils]: 44: Hoare triple {16991#(<= 9 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {16990#(<= 8 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:02:08,765 INFO L273 TraceCheckUtils]: 45: Hoare triple {16990#(<= 8 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {16989#(<= 7 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:02:08,766 INFO L273 TraceCheckUtils]: 46: Hoare triple {16989#(<= 7 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {16988#(<= 6 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:02:08,767 INFO L273 TraceCheckUtils]: 47: Hoare triple {16988#(<= 6 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {16987#(<= 5 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:02:08,768 INFO L273 TraceCheckUtils]: 48: Hoare triple {16987#(<= 5 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {16986#(<= 4 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:02:08,768 INFO L273 TraceCheckUtils]: 49: Hoare triple {16986#(<= 4 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {16985#(<= 3 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:02:08,769 INFO L273 TraceCheckUtils]: 50: Hoare triple {16985#(<= 3 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {16984#(<= 2 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:02:08,770 INFO L273 TraceCheckUtils]: 51: Hoare triple {16984#(<= 2 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {16983#(<= 1 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:02:08,771 INFO L273 TraceCheckUtils]: 52: Hoare triple {16983#(<= 1 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {16982#(<= 0 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:02:08,772 INFO L273 TraceCheckUtils]: 53: Hoare triple {16982#(<= 0 ULTIMATE.start_main_~i~6)} assume !(main_~i~6 >= 0);main_~j~6 := main_~MAX~6 - 1;main_~i~6 := 0;assume !!(main_~i~6 < main_~MAX~6);__VERIFIER_assert_#in~cond := (if main_~str1~6[main_~i~6] == main_~str2~6[main_~j~6] then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond;assume __VERIFIER_assert_~cond == 0;assume !false; {16981#false} is VALID [2019-01-31 15:02:08,772 INFO L273 TraceCheckUtils]: 54: Hoare triple {16981#false} assume !false; {16981#false} is VALID [2019-01-31 15:02:08,776 INFO L134 CoverageAnalysis]: Checked inductivity of 676 backedges. 325 proven. 351 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-31 15:02:08,776 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-31 15:02:08,776 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-01-31 15:02:08,776 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-01-31 15:02:08,776 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-01-31 15:02:08,776 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-31 15:02:08,777 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 39 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 39 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-01-31 15:02:08,786 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2019-01-31 15:02:08,786 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST2 (IT: FPandBP) [2019-01-31 15:02:08,893 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 14 check-sat command(s) [2019-01-31 15:02:08,893 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-01-31 15:02:08,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-31 15:02:08,914 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-31 15:02:09,166 INFO L273 TraceCheckUtils]: 0: Hoare triple {16980#true} havoc main_#res;havoc main_#t~nondet0, main_#t~nondet2, main_#t~post1, main_#t~post4, main_#t~post3, main_#t~post6, main_#t~post5, main_~MAX~6, main_~str1~6, main_~str2~6, main_~cont~6, main_~i~6, main_~j~6;main_~MAX~6 := (if main_#t~nondet0 % 4294967296 % 4294967296 <= 2147483647 then main_#t~nondet0 % 4294967296 % 4294967296 else main_#t~nondet0 % 4294967296 % 4294967296 - 4294967296);havoc main_#t~nondet0;havoc main_~str1~6;havoc main_~str2~6;havoc main_~cont~6;havoc main_~i~6;havoc main_~j~6;main_~cont~6 := 0;main_~i~6 := 0; {16982#(<= 0 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:02:09,167 INFO L273 TraceCheckUtils]: 1: Hoare triple {16982#(<= 0 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {16983#(<= 1 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:02:09,168 INFO L273 TraceCheckUtils]: 2: Hoare triple {16983#(<= 1 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {16984#(<= 2 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:02:09,168 INFO L273 TraceCheckUtils]: 3: Hoare triple {16984#(<= 2 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {16985#(<= 3 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:02:09,169 INFO L273 TraceCheckUtils]: 4: Hoare triple {16985#(<= 3 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {16986#(<= 4 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:02:09,170 INFO L273 TraceCheckUtils]: 5: Hoare triple {16986#(<= 4 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {16987#(<= 5 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:02:09,171 INFO L273 TraceCheckUtils]: 6: Hoare triple {16987#(<= 5 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {16988#(<= 6 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:02:09,172 INFO L273 TraceCheckUtils]: 7: Hoare triple {16988#(<= 6 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {16989#(<= 7 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:02:09,173 INFO L273 TraceCheckUtils]: 8: Hoare triple {16989#(<= 7 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {16990#(<= 8 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:02:09,174 INFO L273 TraceCheckUtils]: 9: Hoare triple {16990#(<= 8 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {16991#(<= 9 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:02:09,175 INFO L273 TraceCheckUtils]: 10: Hoare triple {16991#(<= 9 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {16992#(<= 10 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:02:09,175 INFO L273 TraceCheckUtils]: 11: Hoare triple {16992#(<= 10 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {16993#(<= 11 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:02:09,176 INFO L273 TraceCheckUtils]: 12: Hoare triple {16993#(<= 11 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {16994#(<= 12 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:02:09,177 INFO L273 TraceCheckUtils]: 13: Hoare triple {16994#(<= 12 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {16995#(<= 13 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:02:09,178 INFO L273 TraceCheckUtils]: 14: Hoare triple {16995#(<= 13 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {16996#(<= 14 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:02:09,179 INFO L273 TraceCheckUtils]: 15: Hoare triple {16996#(<= 14 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {16997#(<= 15 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:02:09,180 INFO L273 TraceCheckUtils]: 16: Hoare triple {16997#(<= 15 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {16998#(<= 16 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:02:09,181 INFO L273 TraceCheckUtils]: 17: Hoare triple {16998#(<= 16 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {16999#(<= 17 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:02:09,181 INFO L273 TraceCheckUtils]: 18: Hoare triple {16999#(<= 17 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {17000#(<= 18 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:02:09,182 INFO L273 TraceCheckUtils]: 19: Hoare triple {17000#(<= 18 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {17001#(<= 19 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:02:09,183 INFO L273 TraceCheckUtils]: 20: Hoare triple {17001#(<= 19 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {17002#(<= 20 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:02:09,184 INFO L273 TraceCheckUtils]: 21: Hoare triple {17002#(<= 20 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {17003#(<= 21 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:02:09,185 INFO L273 TraceCheckUtils]: 22: Hoare triple {17003#(<= 21 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {17004#(<= 22 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:02:09,186 INFO L273 TraceCheckUtils]: 23: Hoare triple {17004#(<= 22 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {17005#(<= 23 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:02:09,187 INFO L273 TraceCheckUtils]: 24: Hoare triple {17005#(<= 23 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {17006#(<= 24 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:02:09,188 INFO L273 TraceCheckUtils]: 25: Hoare triple {17006#(<= 24 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {17007#(<= 25 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:02:09,188 INFO L273 TraceCheckUtils]: 26: Hoare triple {17007#(<= 25 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {17008#(<= 26 ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:02:09,189 INFO L273 TraceCheckUtils]: 27: Hoare triple {17008#(<= 26 ULTIMATE.start_main_~MAX~6)} assume !(main_~i~6 < main_~MAX~6);main_~str1~6 := main_~str1~6[main_~MAX~6 - 1 := 0];main_~j~6 := 0;main_~i~6 := main_~MAX~6 - 1; {17007#(<= 25 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:02:09,190 INFO L273 TraceCheckUtils]: 28: Hoare triple {17007#(<= 25 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {17006#(<= 24 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:02:09,191 INFO L273 TraceCheckUtils]: 29: Hoare triple {17006#(<= 24 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {17005#(<= 23 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:02:09,192 INFO L273 TraceCheckUtils]: 30: Hoare triple {17005#(<= 23 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {17004#(<= 22 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:02:09,193 INFO L273 TraceCheckUtils]: 31: Hoare triple {17004#(<= 22 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {17003#(<= 21 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:02:09,194 INFO L273 TraceCheckUtils]: 32: Hoare triple {17003#(<= 21 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {17002#(<= 20 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:02:09,195 INFO L273 TraceCheckUtils]: 33: Hoare triple {17002#(<= 20 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {17001#(<= 19 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:02:09,195 INFO L273 TraceCheckUtils]: 34: Hoare triple {17001#(<= 19 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {17000#(<= 18 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:02:09,196 INFO L273 TraceCheckUtils]: 35: Hoare triple {17000#(<= 18 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {16999#(<= 17 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:02:09,197 INFO L273 TraceCheckUtils]: 36: Hoare triple {16999#(<= 17 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {16998#(<= 16 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:02:09,198 INFO L273 TraceCheckUtils]: 37: Hoare triple {16998#(<= 16 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {16997#(<= 15 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:02:09,199 INFO L273 TraceCheckUtils]: 38: Hoare triple {16997#(<= 15 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {16996#(<= 14 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:02:09,200 INFO L273 TraceCheckUtils]: 39: Hoare triple {16996#(<= 14 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {16995#(<= 13 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:02:09,201 INFO L273 TraceCheckUtils]: 40: Hoare triple {16995#(<= 13 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {16994#(<= 12 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:02:09,202 INFO L273 TraceCheckUtils]: 41: Hoare triple {16994#(<= 12 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {16993#(<= 11 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:02:09,202 INFO L273 TraceCheckUtils]: 42: Hoare triple {16993#(<= 11 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {16992#(<= 10 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:02:09,203 INFO L273 TraceCheckUtils]: 43: Hoare triple {16992#(<= 10 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {16991#(<= 9 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:02:09,204 INFO L273 TraceCheckUtils]: 44: Hoare triple {16991#(<= 9 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {16990#(<= 8 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:02:09,205 INFO L273 TraceCheckUtils]: 45: Hoare triple {16990#(<= 8 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {16989#(<= 7 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:02:09,206 INFO L273 TraceCheckUtils]: 46: Hoare triple {16989#(<= 7 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {16988#(<= 6 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:02:09,207 INFO L273 TraceCheckUtils]: 47: Hoare triple {16988#(<= 6 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {16987#(<= 5 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:02:09,208 INFO L273 TraceCheckUtils]: 48: Hoare triple {16987#(<= 5 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {16986#(<= 4 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:02:09,208 INFO L273 TraceCheckUtils]: 49: Hoare triple {16986#(<= 4 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {16985#(<= 3 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:02:09,209 INFO L273 TraceCheckUtils]: 50: Hoare triple {16985#(<= 3 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {16984#(<= 2 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:02:09,210 INFO L273 TraceCheckUtils]: 51: Hoare triple {16984#(<= 2 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {16983#(<= 1 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:02:09,211 INFO L273 TraceCheckUtils]: 52: Hoare triple {16983#(<= 1 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {16982#(<= 0 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:02:09,211 INFO L273 TraceCheckUtils]: 53: Hoare triple {16982#(<= 0 ULTIMATE.start_main_~i~6)} assume !(main_~i~6 >= 0);main_~j~6 := main_~MAX~6 - 1;main_~i~6 := 0;assume !!(main_~i~6 < main_~MAX~6);__VERIFIER_assert_#in~cond := (if main_~str1~6[main_~i~6] == main_~str2~6[main_~j~6] then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond;assume __VERIFIER_assert_~cond == 0;assume !false; {16981#false} is VALID [2019-01-31 15:02:09,212 INFO L273 TraceCheckUtils]: 54: Hoare triple {16981#false} assume !false; {16981#false} is VALID [2019-01-31 15:02:09,215 INFO L134 CoverageAnalysis]: Checked inductivity of 676 backedges. 325 proven. 351 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-31 15:02:09,215 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2019-01-31 15:02:10,378 INFO L273 TraceCheckUtils]: 54: Hoare triple {16981#false} assume !false; {16981#false} is VALID [2019-01-31 15:02:10,378 INFO L273 TraceCheckUtils]: 53: Hoare triple {16982#(<= 0 ULTIMATE.start_main_~i~6)} assume !(main_~i~6 >= 0);main_~j~6 := main_~MAX~6 - 1;main_~i~6 := 0;assume !!(main_~i~6 < main_~MAX~6);__VERIFIER_assert_#in~cond := (if main_~str1~6[main_~i~6] == main_~str2~6[main_~j~6] then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond;assume __VERIFIER_assert_~cond == 0;assume !false; {16981#false} is VALID [2019-01-31 15:02:10,379 INFO L273 TraceCheckUtils]: 52: Hoare triple {16983#(<= 1 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {16982#(<= 0 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:02:10,380 INFO L273 TraceCheckUtils]: 51: Hoare triple {16984#(<= 2 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {16983#(<= 1 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:02:10,380 INFO L273 TraceCheckUtils]: 50: Hoare triple {16985#(<= 3 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {16984#(<= 2 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:02:10,381 INFO L273 TraceCheckUtils]: 49: Hoare triple {16986#(<= 4 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {16985#(<= 3 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:02:10,381 INFO L273 TraceCheckUtils]: 48: Hoare triple {16987#(<= 5 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {16986#(<= 4 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:02:10,382 INFO L273 TraceCheckUtils]: 47: Hoare triple {16988#(<= 6 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {16987#(<= 5 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:02:10,383 INFO L273 TraceCheckUtils]: 46: Hoare triple {16989#(<= 7 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {16988#(<= 6 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:02:10,384 INFO L273 TraceCheckUtils]: 45: Hoare triple {16990#(<= 8 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {16989#(<= 7 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:02:10,385 INFO L273 TraceCheckUtils]: 44: Hoare triple {16991#(<= 9 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {16990#(<= 8 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:02:10,386 INFO L273 TraceCheckUtils]: 43: Hoare triple {16992#(<= 10 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {16991#(<= 9 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:02:10,386 INFO L273 TraceCheckUtils]: 42: Hoare triple {16993#(<= 11 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {16992#(<= 10 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:02:10,387 INFO L273 TraceCheckUtils]: 41: Hoare triple {16994#(<= 12 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {16993#(<= 11 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:02:10,388 INFO L273 TraceCheckUtils]: 40: Hoare triple {16995#(<= 13 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {16994#(<= 12 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:02:10,389 INFO L273 TraceCheckUtils]: 39: Hoare triple {16996#(<= 14 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {16995#(<= 13 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:02:10,390 INFO L273 TraceCheckUtils]: 38: Hoare triple {16997#(<= 15 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {16996#(<= 14 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:02:10,391 INFO L273 TraceCheckUtils]: 37: Hoare triple {16998#(<= 16 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {16997#(<= 15 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:02:10,392 INFO L273 TraceCheckUtils]: 36: Hoare triple {16999#(<= 17 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {16998#(<= 16 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:02:10,392 INFO L273 TraceCheckUtils]: 35: Hoare triple {17000#(<= 18 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {16999#(<= 17 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:02:10,393 INFO L273 TraceCheckUtils]: 34: Hoare triple {17001#(<= 19 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {17000#(<= 18 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:02:10,394 INFO L273 TraceCheckUtils]: 33: Hoare triple {17002#(<= 20 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {17001#(<= 19 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:02:10,395 INFO L273 TraceCheckUtils]: 32: Hoare triple {17003#(<= 21 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {17002#(<= 20 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:02:10,396 INFO L273 TraceCheckUtils]: 31: Hoare triple {17004#(<= 22 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {17003#(<= 21 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:02:10,397 INFO L273 TraceCheckUtils]: 30: Hoare triple {17005#(<= 23 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {17004#(<= 22 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:02:10,398 INFO L273 TraceCheckUtils]: 29: Hoare triple {17006#(<= 24 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {17005#(<= 23 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:02:10,398 INFO L273 TraceCheckUtils]: 28: Hoare triple {17007#(<= 25 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {17006#(<= 24 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:02:10,399 INFO L273 TraceCheckUtils]: 27: Hoare triple {17008#(<= 26 ULTIMATE.start_main_~MAX~6)} assume !(main_~i~6 < main_~MAX~6);main_~str1~6 := main_~str1~6[main_~MAX~6 - 1 := 0];main_~j~6 := 0;main_~i~6 := main_~MAX~6 - 1; {17007#(<= 25 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:02:10,400 INFO L273 TraceCheckUtils]: 26: Hoare triple {17007#(<= 25 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {17008#(<= 26 ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:02:10,401 INFO L273 TraceCheckUtils]: 25: Hoare triple {17006#(<= 24 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {17007#(<= 25 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:02:10,402 INFO L273 TraceCheckUtils]: 24: Hoare triple {17005#(<= 23 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {17006#(<= 24 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:02:10,403 INFO L273 TraceCheckUtils]: 23: Hoare triple {17004#(<= 22 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {17005#(<= 23 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:02:10,404 INFO L273 TraceCheckUtils]: 22: Hoare triple {17003#(<= 21 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {17004#(<= 22 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:02:10,404 INFO L273 TraceCheckUtils]: 21: Hoare triple {17002#(<= 20 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {17003#(<= 21 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:02:10,405 INFO L273 TraceCheckUtils]: 20: Hoare triple {17001#(<= 19 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {17002#(<= 20 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:02:10,406 INFO L273 TraceCheckUtils]: 19: Hoare triple {17000#(<= 18 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {17001#(<= 19 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:02:10,407 INFO L273 TraceCheckUtils]: 18: Hoare triple {16999#(<= 17 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {17000#(<= 18 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:02:10,408 INFO L273 TraceCheckUtils]: 17: Hoare triple {16998#(<= 16 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {16999#(<= 17 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:02:10,409 INFO L273 TraceCheckUtils]: 16: Hoare triple {16997#(<= 15 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {16998#(<= 16 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:02:10,410 INFO L273 TraceCheckUtils]: 15: Hoare triple {16996#(<= 14 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {16997#(<= 15 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:02:10,410 INFO L273 TraceCheckUtils]: 14: Hoare triple {16995#(<= 13 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {16996#(<= 14 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:02:10,411 INFO L273 TraceCheckUtils]: 13: Hoare triple {16994#(<= 12 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {16995#(<= 13 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:02:10,412 INFO L273 TraceCheckUtils]: 12: Hoare triple {16993#(<= 11 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {16994#(<= 12 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:02:10,413 INFO L273 TraceCheckUtils]: 11: Hoare triple {16992#(<= 10 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {16993#(<= 11 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:02:10,414 INFO L273 TraceCheckUtils]: 10: Hoare triple {16991#(<= 9 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {16992#(<= 10 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:02:10,415 INFO L273 TraceCheckUtils]: 9: Hoare triple {16990#(<= 8 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {16991#(<= 9 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:02:10,416 INFO L273 TraceCheckUtils]: 8: Hoare triple {16989#(<= 7 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {16990#(<= 8 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:02:10,417 INFO L273 TraceCheckUtils]: 7: Hoare triple {16988#(<= 6 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {16989#(<= 7 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:02:10,417 INFO L273 TraceCheckUtils]: 6: Hoare triple {16987#(<= 5 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {16988#(<= 6 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:02:10,418 INFO L273 TraceCheckUtils]: 5: Hoare triple {16986#(<= 4 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {16987#(<= 5 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:02:10,419 INFO L273 TraceCheckUtils]: 4: Hoare triple {16985#(<= 3 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {16986#(<= 4 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:02:10,420 INFO L273 TraceCheckUtils]: 3: Hoare triple {16984#(<= 2 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {16985#(<= 3 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:02:10,421 INFO L273 TraceCheckUtils]: 2: Hoare triple {16983#(<= 1 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {16984#(<= 2 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:02:10,422 INFO L273 TraceCheckUtils]: 1: Hoare triple {16982#(<= 0 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {16983#(<= 1 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:02:10,422 INFO L273 TraceCheckUtils]: 0: Hoare triple {16980#true} havoc main_#res;havoc main_#t~nondet0, main_#t~nondet2, main_#t~post1, main_#t~post4, main_#t~post3, main_#t~post6, main_#t~post5, main_~MAX~6, main_~str1~6, main_~str2~6, main_~cont~6, main_~i~6, main_~j~6;main_~MAX~6 := (if main_#t~nondet0 % 4294967296 % 4294967296 <= 2147483647 then main_#t~nondet0 % 4294967296 % 4294967296 else main_#t~nondet0 % 4294967296 % 4294967296 - 4294967296);havoc main_#t~nondet0;havoc main_~str1~6;havoc main_~str2~6;havoc main_~cont~6;havoc main_~i~6;havoc main_~j~6;main_~cont~6 := 0;main_~i~6 := 0; {16982#(<= 0 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:02:10,426 INFO L134 CoverageAnalysis]: Checked inductivity of 676 backedges. 325 proven. 351 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-31 15:02:10,445 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-01-31 15:02:10,445 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [28, 28, 28] total 28 [2019-01-31 15:02:10,445 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-01-31 15:02:10,445 INFO L78 Accepts]: Start accepts. Automaton has 29 states. Word has length 55 [2019-01-31 15:02:10,445 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-01-31 15:02:10,446 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 29 states. [2019-01-31 15:02:10,508 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 55 edges. 55 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-01-31 15:02:10,508 INFO L459 AbstractCegarLoop]: Interpolant automaton has 29 states [2019-01-31 15:02:10,509 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2019-01-31 15:02:10,509 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=380, Invalid=432, Unknown=0, NotChecked=0, Total=812 [2019-01-31 15:02:10,509 INFO L87 Difference]: Start difference. First operand 56 states and 57 transitions. Second operand 29 states. [2019-01-31 15:02:12,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 15:02:12,391 INFO L93 Difference]: Finished difference Result 59 states and 60 transitions. [2019-01-31 15:02:12,391 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2019-01-31 15:02:12,392 INFO L78 Accepts]: Start accepts. Automaton has 29 states. Word has length 55 [2019-01-31 15:02:12,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-31 15:02:12,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2019-01-31 15:02:12,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 60 transitions. [2019-01-31 15:02:12,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2019-01-31 15:02:12,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 60 transitions. [2019-01-31 15:02:12,394 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 55 states and 60 transitions. [2019-01-31 15:02:12,441 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 60 edges. 60 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-01-31 15:02:12,442 INFO L225 Difference]: With dead ends: 59 [2019-01-31 15:02:12,442 INFO L226 Difference]: Without dead ends: 57 [2019-01-31 15:02:12,442 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 188 GetRequests, 83 SyntacticMatches, 52 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1300 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=1134, Invalid=1836, Unknown=0, NotChecked=0, Total=2970 [2019-01-31 15:02:12,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2019-01-31 15:02:13,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2019-01-31 15:02:13,605 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-01-31 15:02:13,605 INFO L82 GeneralOperation]: Start isEquivalent. First operand 57 states. Second operand 57 states. [2019-01-31 15:02:13,606 INFO L74 IsIncluded]: Start isIncluded. First operand 57 states. Second operand 57 states. [2019-01-31 15:02:13,606 INFO L87 Difference]: Start difference. First operand 57 states. Second operand 57 states. [2019-01-31 15:02:13,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 15:02:13,607 INFO L93 Difference]: Finished difference Result 57 states and 58 transitions. [2019-01-31 15:02:13,607 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 58 transitions. [2019-01-31 15:02:13,607 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-31 15:02:13,607 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-01-31 15:02:13,608 INFO L74 IsIncluded]: Start isIncluded. First operand 57 states. Second operand 57 states. [2019-01-31 15:02:13,608 INFO L87 Difference]: Start difference. First operand 57 states. Second operand 57 states. [2019-01-31 15:02:13,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 15:02:13,609 INFO L93 Difference]: Finished difference Result 57 states and 58 transitions. [2019-01-31 15:02:13,609 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 58 transitions. [2019-01-31 15:02:13,609 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-31 15:02:13,610 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-01-31 15:02:13,610 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-01-31 15:02:13,610 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-01-31 15:02:13,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states. [2019-01-31 15:02:13,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 58 transitions. [2019-01-31 15:02:13,610 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 58 transitions. Word has length 55 [2019-01-31 15:02:13,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-31 15:02:13,611 INFO L480 AbstractCegarLoop]: Abstraction has 57 states and 58 transitions. [2019-01-31 15:02:13,611 INFO L481 AbstractCegarLoop]: Interpolant automaton has 29 states. [2019-01-31 15:02:13,611 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 58 transitions. [2019-01-31 15:02:13,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2019-01-31 15:02:13,611 INFO L394 BasicCegarLoop]: Found error trace [2019-01-31 15:02:13,611 INFO L402 BasicCegarLoop]: trace histogram [26, 26, 1, 1, 1, 1] [2019-01-31 15:02:13,611 INFO L423 AbstractCegarLoop]: === Iteration 41 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2019-01-31 15:02:13,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-31 15:02:13,611 INFO L82 PathProgramCache]: Analyzing trace with hash -2020931478, now seen corresponding path program 39 times [2019-01-31 15:02:13,612 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-01-31 15:02:13,612 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-31 15:02:13,612 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-01-31 15:02:13,612 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-31 15:02:13,612 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-01-31 15:02:13,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-31 15:02:15,829 INFO L273 TraceCheckUtils]: 0: Hoare triple {17728#true} havoc main_#res;havoc main_#t~nondet0, main_#t~nondet2, main_#t~post1, main_#t~post4, main_#t~post3, main_#t~post6, main_#t~post5, main_~MAX~6, main_~str1~6, main_~str2~6, main_~cont~6, main_~i~6, main_~j~6;main_~MAX~6 := (if main_#t~nondet0 % 4294967296 % 4294967296 <= 2147483647 then main_#t~nondet0 % 4294967296 % 4294967296 else main_#t~nondet0 % 4294967296 % 4294967296 - 4294967296);havoc main_#t~nondet0;havoc main_~str1~6;havoc main_~str2~6;havoc main_~cont~6;havoc main_~i~6;havoc main_~j~6;main_~cont~6 := 0;main_~i~6 := 0; {17730#(and (<= ULTIMATE.start_main_~i~6 0) (<= 0 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:02:15,830 INFO L273 TraceCheckUtils]: 1: Hoare triple {17730#(and (<= ULTIMATE.start_main_~i~6 0) (<= 0 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {17731#(and (<= ULTIMATE.start_main_~i~6 1) (<= 1 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:02:15,831 INFO L273 TraceCheckUtils]: 2: Hoare triple {17731#(and (<= ULTIMATE.start_main_~i~6 1) (<= 1 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {17732#(and (<= ULTIMATE.start_main_~i~6 2) (<= 2 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:02:15,832 INFO L273 TraceCheckUtils]: 3: Hoare triple {17732#(and (<= ULTIMATE.start_main_~i~6 2) (<= 2 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {17733#(and (<= 3 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 3))} is VALID [2019-01-31 15:02:15,833 INFO L273 TraceCheckUtils]: 4: Hoare triple {17733#(and (<= 3 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 3))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {17734#(and (<= ULTIMATE.start_main_~i~6 4) (<= 4 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:02:15,834 INFO L273 TraceCheckUtils]: 5: Hoare triple {17734#(and (<= ULTIMATE.start_main_~i~6 4) (<= 4 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {17735#(and (<= 5 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 5))} is VALID [2019-01-31 15:02:15,835 INFO L273 TraceCheckUtils]: 6: Hoare triple {17735#(and (<= 5 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 5))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {17736#(and (<= ULTIMATE.start_main_~i~6 6) (<= 6 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:02:15,836 INFO L273 TraceCheckUtils]: 7: Hoare triple {17736#(and (<= ULTIMATE.start_main_~i~6 6) (<= 6 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {17737#(and (<= 7 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 7))} is VALID [2019-01-31 15:02:15,837 INFO L273 TraceCheckUtils]: 8: Hoare triple {17737#(and (<= 7 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 7))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {17738#(and (<= ULTIMATE.start_main_~i~6 8) (<= 8 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:02:15,838 INFO L273 TraceCheckUtils]: 9: Hoare triple {17738#(and (<= ULTIMATE.start_main_~i~6 8) (<= 8 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {17739#(and (<= ULTIMATE.start_main_~i~6 9) (<= 9 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:02:15,839 INFO L273 TraceCheckUtils]: 10: Hoare triple {17739#(and (<= ULTIMATE.start_main_~i~6 9) (<= 9 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {17740#(and (<= ULTIMATE.start_main_~i~6 10) (<= 10 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:02:15,840 INFO L273 TraceCheckUtils]: 11: Hoare triple {17740#(and (<= ULTIMATE.start_main_~i~6 10) (<= 10 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {17741#(and (<= 11 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 11))} is VALID [2019-01-31 15:02:15,841 INFO L273 TraceCheckUtils]: 12: Hoare triple {17741#(and (<= 11 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 11))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {17742#(and (<= ULTIMATE.start_main_~i~6 12) (<= 12 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:02:15,841 INFO L273 TraceCheckUtils]: 13: Hoare triple {17742#(and (<= ULTIMATE.start_main_~i~6 12) (<= 12 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {17743#(and (<= ULTIMATE.start_main_~i~6 13) (<= 13 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:02:15,842 INFO L273 TraceCheckUtils]: 14: Hoare triple {17743#(and (<= ULTIMATE.start_main_~i~6 13) (<= 13 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {17744#(and (<= ULTIMATE.start_main_~i~6 14) (<= 14 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:02:15,843 INFO L273 TraceCheckUtils]: 15: Hoare triple {17744#(and (<= ULTIMATE.start_main_~i~6 14) (<= 14 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {17745#(and (<= 15 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 15))} is VALID [2019-01-31 15:02:15,844 INFO L273 TraceCheckUtils]: 16: Hoare triple {17745#(and (<= 15 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 15))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {17746#(and (<= 16 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 16))} is VALID [2019-01-31 15:02:15,845 INFO L273 TraceCheckUtils]: 17: Hoare triple {17746#(and (<= 16 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 16))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {17747#(and (<= ULTIMATE.start_main_~i~6 17) (<= 17 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:02:15,846 INFO L273 TraceCheckUtils]: 18: Hoare triple {17747#(and (<= ULTIMATE.start_main_~i~6 17) (<= 17 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {17748#(and (<= ULTIMATE.start_main_~i~6 18) (<= 18 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:02:15,847 INFO L273 TraceCheckUtils]: 19: Hoare triple {17748#(and (<= ULTIMATE.start_main_~i~6 18) (<= 18 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {17749#(and (<= ULTIMATE.start_main_~i~6 19) (<= 19 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:02:15,848 INFO L273 TraceCheckUtils]: 20: Hoare triple {17749#(and (<= ULTIMATE.start_main_~i~6 19) (<= 19 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {17750#(and (<= ULTIMATE.start_main_~i~6 20) (<= 20 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:02:15,849 INFO L273 TraceCheckUtils]: 21: Hoare triple {17750#(and (<= ULTIMATE.start_main_~i~6 20) (<= 20 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {17751#(and (<= ULTIMATE.start_main_~i~6 21) (<= 21 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:02:15,850 INFO L273 TraceCheckUtils]: 22: Hoare triple {17751#(and (<= ULTIMATE.start_main_~i~6 21) (<= 21 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {17752#(and (<= 22 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 22))} is VALID [2019-01-31 15:02:15,851 INFO L273 TraceCheckUtils]: 23: Hoare triple {17752#(and (<= 22 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 22))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {17753#(and (<= 23 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 23))} is VALID [2019-01-31 15:02:15,852 INFO L273 TraceCheckUtils]: 24: Hoare triple {17753#(and (<= 23 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 23))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {17754#(and (<= ULTIMATE.start_main_~i~6 24) (<= 24 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:02:15,853 INFO L273 TraceCheckUtils]: 25: Hoare triple {17754#(and (<= ULTIMATE.start_main_~i~6 24) (<= 24 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {17755#(or (not (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 1))) (and (<= ULTIMATE.start_main_~i~6 25) (<= 25 ULTIMATE.start_main_~i~6)))} is VALID [2019-01-31 15:02:15,854 INFO L273 TraceCheckUtils]: 26: Hoare triple {17755#(or (not (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 1))) (and (<= ULTIMATE.start_main_~i~6 25) (<= 25 ULTIMATE.start_main_~i~6)))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {17756#(or (<= (+ ULTIMATE.start_main_~i~6 1) ULTIMATE.start_main_~MAX~6) (= 26 ULTIMATE.start_main_~MAX~6))} is VALID [2019-01-31 15:02:15,855 INFO L273 TraceCheckUtils]: 27: Hoare triple {17756#(or (<= (+ ULTIMATE.start_main_~i~6 1) ULTIMATE.start_main_~MAX~6) (= 26 ULTIMATE.start_main_~MAX~6))} assume !(main_~i~6 < main_~MAX~6);main_~str1~6 := main_~str1~6[main_~MAX~6 - 1 := 0];main_~j~6 := 0;main_~i~6 := main_~MAX~6 - 1; {17757#(= (+ ULTIMATE.start_main_~j~6 26) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:02:15,856 INFO L273 TraceCheckUtils]: 28: Hoare triple {17757#(= (+ ULTIMATE.start_main_~j~6 26) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {17758#(= (+ ULTIMATE.start_main_~j~6 25) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:02:15,857 INFO L273 TraceCheckUtils]: 29: Hoare triple {17758#(= (+ ULTIMATE.start_main_~j~6 25) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {17759#(= (+ ULTIMATE.start_main_~j~6 24) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:02:15,858 INFO L273 TraceCheckUtils]: 30: Hoare triple {17759#(= (+ ULTIMATE.start_main_~j~6 24) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {17760#(= (+ ULTIMATE.start_main_~j~6 23) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:02:15,859 INFO L273 TraceCheckUtils]: 31: Hoare triple {17760#(= (+ ULTIMATE.start_main_~j~6 23) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {17761#(= (+ ULTIMATE.start_main_~j~6 22) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:02:15,860 INFO L273 TraceCheckUtils]: 32: Hoare triple {17761#(= (+ ULTIMATE.start_main_~j~6 22) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {17762#(= (+ ULTIMATE.start_main_~j~6 21) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:02:15,861 INFO L273 TraceCheckUtils]: 33: Hoare triple {17762#(= (+ ULTIMATE.start_main_~j~6 21) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {17763#(= (+ ULTIMATE.start_main_~j~6 20) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:02:15,861 INFO L273 TraceCheckUtils]: 34: Hoare triple {17763#(= (+ ULTIMATE.start_main_~j~6 20) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {17764#(= (+ ULTIMATE.start_main_~j~6 19) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:02:15,862 INFO L273 TraceCheckUtils]: 35: Hoare triple {17764#(= (+ ULTIMATE.start_main_~j~6 19) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {17765#(= (+ ULTIMATE.start_main_~j~6 18) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:02:15,863 INFO L273 TraceCheckUtils]: 36: Hoare triple {17765#(= (+ ULTIMATE.start_main_~j~6 18) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {17766#(= (+ ULTIMATE.start_main_~j~6 17) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:02:15,864 INFO L273 TraceCheckUtils]: 37: Hoare triple {17766#(= (+ ULTIMATE.start_main_~j~6 17) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {17767#(= (+ ULTIMATE.start_main_~j~6 16) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:02:15,865 INFO L273 TraceCheckUtils]: 38: Hoare triple {17767#(= (+ ULTIMATE.start_main_~j~6 16) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {17768#(= (+ ULTIMATE.start_main_~j~6 15) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:02:15,866 INFO L273 TraceCheckUtils]: 39: Hoare triple {17768#(= (+ ULTIMATE.start_main_~j~6 15) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {17769#(= (+ ULTIMATE.start_main_~j~6 14) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:02:15,867 INFO L273 TraceCheckUtils]: 40: Hoare triple {17769#(= (+ ULTIMATE.start_main_~j~6 14) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {17770#(= (+ ULTIMATE.start_main_~j~6 13) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:02:15,868 INFO L273 TraceCheckUtils]: 41: Hoare triple {17770#(= (+ ULTIMATE.start_main_~j~6 13) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {17771#(= (+ ULTIMATE.start_main_~j~6 12) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:02:15,869 INFO L273 TraceCheckUtils]: 42: Hoare triple {17771#(= (+ ULTIMATE.start_main_~j~6 12) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {17772#(= (+ ULTIMATE.start_main_~j~6 11) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:02:15,870 INFO L273 TraceCheckUtils]: 43: Hoare triple {17772#(= (+ ULTIMATE.start_main_~j~6 11) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {17773#(= (+ ULTIMATE.start_main_~j~6 10) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:02:15,871 INFO L273 TraceCheckUtils]: 44: Hoare triple {17773#(= (+ ULTIMATE.start_main_~j~6 10) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {17774#(= (+ ULTIMATE.start_main_~j~6 9) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:02:15,872 INFO L273 TraceCheckUtils]: 45: Hoare triple {17774#(= (+ ULTIMATE.start_main_~j~6 9) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {17775#(= (+ ULTIMATE.start_main_~j~6 8) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:02:15,873 INFO L273 TraceCheckUtils]: 46: Hoare triple {17775#(= (+ ULTIMATE.start_main_~j~6 8) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {17776#(= (+ ULTIMATE.start_main_~j~6 7) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:02:15,874 INFO L273 TraceCheckUtils]: 47: Hoare triple {17776#(= (+ ULTIMATE.start_main_~j~6 7) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {17777#(= (+ ULTIMATE.start_main_~j~6 6) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:02:15,875 INFO L273 TraceCheckUtils]: 48: Hoare triple {17777#(= (+ ULTIMATE.start_main_~j~6 6) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {17778#(= (+ ULTIMATE.start_main_~j~6 5) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:02:15,876 INFO L273 TraceCheckUtils]: 49: Hoare triple {17778#(= (+ ULTIMATE.start_main_~j~6 5) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {17779#(= (+ ULTIMATE.start_main_~j~6 4) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:02:15,877 INFO L273 TraceCheckUtils]: 50: Hoare triple {17779#(= (+ ULTIMATE.start_main_~j~6 4) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {17780#(= (+ ULTIMATE.start_main_~j~6 3) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:02:15,877 INFO L273 TraceCheckUtils]: 51: Hoare triple {17780#(= (+ ULTIMATE.start_main_~j~6 3) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {17781#(= (+ ULTIMATE.start_main_~j~6 2) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:02:15,878 INFO L273 TraceCheckUtils]: 52: Hoare triple {17781#(= (+ ULTIMATE.start_main_~j~6 2) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {17782#(= (+ ULTIMATE.start_main_~j~6 1) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:02:15,879 INFO L273 TraceCheckUtils]: 53: Hoare triple {17782#(= (+ ULTIMATE.start_main_~j~6 1) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {17783#(= (select ULTIMATE.start_main_~str1~6 0) (select ULTIMATE.start_main_~str2~6 (+ ULTIMATE.start_main_~MAX~6 (- 1))))} is VALID [2019-01-31 15:02:15,880 INFO L273 TraceCheckUtils]: 54: Hoare triple {17783#(= (select ULTIMATE.start_main_~str1~6 0) (select ULTIMATE.start_main_~str2~6 (+ ULTIMATE.start_main_~MAX~6 (- 1))))} assume !(main_~i~6 >= 0);main_~j~6 := main_~MAX~6 - 1;main_~i~6 := 0;assume !!(main_~i~6 < main_~MAX~6);__VERIFIER_assert_#in~cond := (if main_~str1~6[main_~i~6] == main_~str2~6[main_~j~6] then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond;assume __VERIFIER_assert_~cond == 0;assume !false; {17729#false} is VALID [2019-01-31 15:02:15,881 INFO L273 TraceCheckUtils]: 55: Hoare triple {17729#false} assume !false; {17729#false} is VALID [2019-01-31 15:02:15,885 INFO L134 CoverageAnalysis]: Checked inductivity of 702 backedges. 0 proven. 702 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-31 15:02:15,886 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-31 15:02:15,886 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-01-31 15:02:15,886 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-01-31 15:02:15,886 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-01-31 15:02:15,886 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-31 15:02:15,886 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 40 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 40 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-01-31 15:02:15,894 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2019-01-31 15:02:15,895 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder TERMS_WITH_SMALL_CONSTANTS_FIRST (IT: FPandBP) [2019-01-31 15:02:15,928 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-01-31 15:02:15,928 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-01-31 15:02:15,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-31 15:02:15,950 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-31 15:02:17,846 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2019-01-31 15:02:17,847 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-01-31 15:02:17,854 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-31 15:02:17,854 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:17, output treesize:16 [2019-01-31 15:02:17,858 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-01-31 15:02:17,859 WARN L398 uantifierElimination]: Input elimination task: ∃ [v_ULTIMATE.start_main_~str2~6_526]. (and (= ULTIMATE.start_main_~str2~6 (store v_ULTIMATE.start_main_~str2~6_526 25 (select ULTIMATE.start_main_~str1~6 0))) (<= 26 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 27))) [2019-01-31 15:02:17,859 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= (select ULTIMATE.start_main_~str1~6 0) (select ULTIMATE.start_main_~str2~6 25)) (<= 26 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 27))) [2019-01-31 15:02:17,947 INFO L273 TraceCheckUtils]: 0: Hoare triple {17728#true} havoc main_#res;havoc main_#t~nondet0, main_#t~nondet2, main_#t~post1, main_#t~post4, main_#t~post3, main_#t~post6, main_#t~post5, main_~MAX~6, main_~str1~6, main_~str2~6, main_~cont~6, main_~i~6, main_~j~6;main_~MAX~6 := (if main_#t~nondet0 % 4294967296 % 4294967296 <= 2147483647 then main_#t~nondet0 % 4294967296 % 4294967296 else main_#t~nondet0 % 4294967296 % 4294967296 - 4294967296);havoc main_#t~nondet0;havoc main_~str1~6;havoc main_~str2~6;havoc main_~cont~6;havoc main_~i~6;havoc main_~j~6;main_~cont~6 := 0;main_~i~6 := 0; {17728#true} is VALID [2019-01-31 15:02:17,947 INFO L273 TraceCheckUtils]: 1: Hoare triple {17728#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {17728#true} is VALID [2019-01-31 15:02:17,947 INFO L273 TraceCheckUtils]: 2: Hoare triple {17728#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {17728#true} is VALID [2019-01-31 15:02:17,948 INFO L273 TraceCheckUtils]: 3: Hoare triple {17728#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {17728#true} is VALID [2019-01-31 15:02:17,948 INFO L273 TraceCheckUtils]: 4: Hoare triple {17728#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {17728#true} is VALID [2019-01-31 15:02:17,948 INFO L273 TraceCheckUtils]: 5: Hoare triple {17728#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {17728#true} is VALID [2019-01-31 15:02:17,948 INFO L273 TraceCheckUtils]: 6: Hoare triple {17728#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {17728#true} is VALID [2019-01-31 15:02:17,948 INFO L273 TraceCheckUtils]: 7: Hoare triple {17728#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {17728#true} is VALID [2019-01-31 15:02:17,948 INFO L273 TraceCheckUtils]: 8: Hoare triple {17728#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {17728#true} is VALID [2019-01-31 15:02:17,948 INFO L273 TraceCheckUtils]: 9: Hoare triple {17728#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {17728#true} is VALID [2019-01-31 15:02:17,948 INFO L273 TraceCheckUtils]: 10: Hoare triple {17728#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {17728#true} is VALID [2019-01-31 15:02:17,948 INFO L273 TraceCheckUtils]: 11: Hoare triple {17728#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {17728#true} is VALID [2019-01-31 15:02:17,949 INFO L273 TraceCheckUtils]: 12: Hoare triple {17728#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {17728#true} is VALID [2019-01-31 15:02:17,949 INFO L273 TraceCheckUtils]: 13: Hoare triple {17728#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {17728#true} is VALID [2019-01-31 15:02:17,949 INFO L273 TraceCheckUtils]: 14: Hoare triple {17728#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {17728#true} is VALID [2019-01-31 15:02:17,949 INFO L273 TraceCheckUtils]: 15: Hoare triple {17728#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {17728#true} is VALID [2019-01-31 15:02:17,949 INFO L273 TraceCheckUtils]: 16: Hoare triple {17728#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {17728#true} is VALID [2019-01-31 15:02:17,949 INFO L273 TraceCheckUtils]: 17: Hoare triple {17728#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {17728#true} is VALID [2019-01-31 15:02:17,949 INFO L273 TraceCheckUtils]: 18: Hoare triple {17728#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {17728#true} is VALID [2019-01-31 15:02:17,949 INFO L273 TraceCheckUtils]: 19: Hoare triple {17728#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {17728#true} is VALID [2019-01-31 15:02:17,949 INFO L273 TraceCheckUtils]: 20: Hoare triple {17728#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {17728#true} is VALID [2019-01-31 15:02:17,949 INFO L273 TraceCheckUtils]: 21: Hoare triple {17728#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {17728#true} is VALID [2019-01-31 15:02:17,950 INFO L273 TraceCheckUtils]: 22: Hoare triple {17728#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {17728#true} is VALID [2019-01-31 15:02:17,950 INFO L273 TraceCheckUtils]: 23: Hoare triple {17728#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {17728#true} is VALID [2019-01-31 15:02:17,950 INFO L273 TraceCheckUtils]: 24: Hoare triple {17728#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {17728#true} is VALID [2019-01-31 15:02:17,950 INFO L273 TraceCheckUtils]: 25: Hoare triple {17728#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {17728#true} is VALID [2019-01-31 15:02:17,950 INFO L273 TraceCheckUtils]: 26: Hoare triple {17728#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {17728#true} is VALID [2019-01-31 15:02:17,950 INFO L273 TraceCheckUtils]: 27: Hoare triple {17728#true} assume !(main_~i~6 < main_~MAX~6);main_~str1~6 := main_~str1~6[main_~MAX~6 - 1 := 0];main_~j~6 := 0;main_~i~6 := main_~MAX~6 - 1; {17868#(and (= ULTIMATE.start_main_~j~6 0) (= (+ ULTIMATE.start_main_~i~6 1) ULTIMATE.start_main_~MAX~6))} is VALID [2019-01-31 15:02:17,951 INFO L273 TraceCheckUtils]: 28: Hoare triple {17868#(and (= ULTIMATE.start_main_~j~6 0) (= (+ ULTIMATE.start_main_~i~6 1) ULTIMATE.start_main_~MAX~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {17872#(and (= ULTIMATE.start_main_~j~6 1) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 2)))} is VALID [2019-01-31 15:02:17,952 INFO L273 TraceCheckUtils]: 29: Hoare triple {17872#(and (= ULTIMATE.start_main_~j~6 1) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 2)))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {17876#(and (= (+ ULTIMATE.start_main_~i~6 3) ULTIMATE.start_main_~MAX~6) (= ULTIMATE.start_main_~j~6 2))} is VALID [2019-01-31 15:02:17,952 INFO L273 TraceCheckUtils]: 30: Hoare triple {17876#(and (= (+ ULTIMATE.start_main_~i~6 3) ULTIMATE.start_main_~MAX~6) (= ULTIMATE.start_main_~j~6 2))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {17880#(and (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 4)) (= ULTIMATE.start_main_~j~6 3))} is VALID [2019-01-31 15:02:17,953 INFO L273 TraceCheckUtils]: 31: Hoare triple {17880#(and (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 4)) (= ULTIMATE.start_main_~j~6 3))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {17884#(and (= ULTIMATE.start_main_~j~6 4) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 5)))} is VALID [2019-01-31 15:02:17,954 INFO L273 TraceCheckUtils]: 32: Hoare triple {17884#(and (= ULTIMATE.start_main_~j~6 4) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 5)))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {17888#(and (= ULTIMATE.start_main_~j~6 5) (= (+ ULTIMATE.start_main_~i~6 6) ULTIMATE.start_main_~MAX~6))} is VALID [2019-01-31 15:02:17,954 INFO L273 TraceCheckUtils]: 33: Hoare triple {17888#(and (= ULTIMATE.start_main_~j~6 5) (= (+ ULTIMATE.start_main_~i~6 6) ULTIMATE.start_main_~MAX~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {17892#(and (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 7)) (= ULTIMATE.start_main_~j~6 6))} is VALID [2019-01-31 15:02:17,956 INFO L273 TraceCheckUtils]: 34: Hoare triple {17892#(and (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 7)) (= ULTIMATE.start_main_~j~6 6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {17896#(and (= ULTIMATE.start_main_~j~6 7) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 8)))} is VALID [2019-01-31 15:02:17,957 INFO L273 TraceCheckUtils]: 35: Hoare triple {17896#(and (= ULTIMATE.start_main_~j~6 7) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 8)))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {17900#(and (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 9)) (= ULTIMATE.start_main_~j~6 8))} is VALID [2019-01-31 15:02:17,958 INFO L273 TraceCheckUtils]: 36: Hoare triple {17900#(and (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 9)) (= ULTIMATE.start_main_~j~6 8))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {17904#(and (= ULTIMATE.start_main_~j~6 9) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 10)))} is VALID [2019-01-31 15:02:17,959 INFO L273 TraceCheckUtils]: 37: Hoare triple {17904#(and (= ULTIMATE.start_main_~j~6 9) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 10)))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {17908#(and (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 11)) (= ULTIMATE.start_main_~j~6 10))} is VALID [2019-01-31 15:02:17,960 INFO L273 TraceCheckUtils]: 38: Hoare triple {17908#(and (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 11)) (= ULTIMATE.start_main_~j~6 10))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {17912#(and (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 12)) (= ULTIMATE.start_main_~j~6 11))} is VALID [2019-01-31 15:02:17,961 INFO L273 TraceCheckUtils]: 39: Hoare triple {17912#(and (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 12)) (= ULTIMATE.start_main_~j~6 11))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {17916#(and (= ULTIMATE.start_main_~j~6 12) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 13)))} is VALID [2019-01-31 15:02:17,961 INFO L273 TraceCheckUtils]: 40: Hoare triple {17916#(and (= ULTIMATE.start_main_~j~6 12) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 13)))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {17920#(and (= ULTIMATE.start_main_~j~6 13) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 14)))} is VALID [2019-01-31 15:02:17,962 INFO L273 TraceCheckUtils]: 41: Hoare triple {17920#(and (= ULTIMATE.start_main_~j~6 13) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 14)))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {17924#(and (= ULTIMATE.start_main_~j~6 14) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 15)))} is VALID [2019-01-31 15:02:17,963 INFO L273 TraceCheckUtils]: 42: Hoare triple {17924#(and (= ULTIMATE.start_main_~j~6 14) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 15)))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {17928#(and (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 16)) (= ULTIMATE.start_main_~j~6 15))} is VALID [2019-01-31 15:02:17,964 INFO L273 TraceCheckUtils]: 43: Hoare triple {17928#(and (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 16)) (= ULTIMATE.start_main_~j~6 15))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {17932#(and (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 17)) (= ULTIMATE.start_main_~j~6 16))} is VALID [2019-01-31 15:02:17,965 INFO L273 TraceCheckUtils]: 44: Hoare triple {17932#(and (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 17)) (= ULTIMATE.start_main_~j~6 16))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {17936#(and (= ULTIMATE.start_main_~j~6 17) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 18)))} is VALID [2019-01-31 15:02:17,966 INFO L273 TraceCheckUtils]: 45: Hoare triple {17936#(and (= ULTIMATE.start_main_~j~6 17) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 18)))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {17940#(and (= ULTIMATE.start_main_~j~6 18) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 19)))} is VALID [2019-01-31 15:02:17,967 INFO L273 TraceCheckUtils]: 46: Hoare triple {17940#(and (= ULTIMATE.start_main_~j~6 18) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 19)))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {17944#(and (= ULTIMATE.start_main_~j~6 19) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 20)))} is VALID [2019-01-31 15:02:17,968 INFO L273 TraceCheckUtils]: 47: Hoare triple {17944#(and (= ULTIMATE.start_main_~j~6 19) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 20)))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {17948#(and (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 21)) (= ULTIMATE.start_main_~j~6 20))} is VALID [2019-01-31 15:02:17,969 INFO L273 TraceCheckUtils]: 48: Hoare triple {17948#(and (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 21)) (= ULTIMATE.start_main_~j~6 20))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {17952#(and (= ULTIMATE.start_main_~j~6 21) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 22)))} is VALID [2019-01-31 15:02:17,970 INFO L273 TraceCheckUtils]: 49: Hoare triple {17952#(and (= ULTIMATE.start_main_~j~6 21) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 22)))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {17956#(and (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 23)) (= ULTIMATE.start_main_~j~6 22))} is VALID [2019-01-31 15:02:17,971 INFO L273 TraceCheckUtils]: 50: Hoare triple {17956#(and (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 23)) (= ULTIMATE.start_main_~j~6 22))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {17960#(and (= ULTIMATE.start_main_~j~6 23) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 24)))} is VALID [2019-01-31 15:02:17,972 INFO L273 TraceCheckUtils]: 51: Hoare triple {17960#(and (= ULTIMATE.start_main_~j~6 23) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 24)))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {17964#(and (= ULTIMATE.start_main_~j~6 24) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 25)))} is VALID [2019-01-31 15:02:17,973 INFO L273 TraceCheckUtils]: 52: Hoare triple {17964#(and (= ULTIMATE.start_main_~j~6 24) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 25)))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {17968#(and (= ULTIMATE.start_main_~j~6 25) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 26)))} is VALID [2019-01-31 15:02:17,975 INFO L273 TraceCheckUtils]: 53: Hoare triple {17968#(and (= ULTIMATE.start_main_~j~6 25) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 26)))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {17972#(and (= (select ULTIMATE.start_main_~str1~6 0) (select ULTIMATE.start_main_~str2~6 25)) (<= 26 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 27)))} is VALID [2019-01-31 15:02:17,976 INFO L273 TraceCheckUtils]: 54: Hoare triple {17972#(and (= (select ULTIMATE.start_main_~str1~6 0) (select ULTIMATE.start_main_~str2~6 25)) (<= 26 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 27)))} assume !(main_~i~6 >= 0);main_~j~6 := main_~MAX~6 - 1;main_~i~6 := 0;assume !!(main_~i~6 < main_~MAX~6);__VERIFIER_assert_#in~cond := (if main_~str1~6[main_~i~6] == main_~str2~6[main_~j~6] then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond;assume __VERIFIER_assert_~cond == 0;assume !false; {17729#false} is VALID [2019-01-31 15:02:17,976 INFO L273 TraceCheckUtils]: 55: Hoare triple {17729#false} assume !false; {17729#false} is VALID [2019-01-31 15:02:17,981 INFO L134 CoverageAnalysis]: Checked inductivity of 702 backedges. 0 proven. 351 refuted. 0 times theorem prover too weak. 351 trivial. 0 not checked. [2019-01-31 15:02:17,981 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2019-01-31 15:02:18,101 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 5 [2019-01-31 15:02:18,103 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-01-31 15:02:18,115 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-31 15:02:18,115 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:22, output treesize:12 [2019-01-31 15:02:20,773 INFO L273 TraceCheckUtils]: 55: Hoare triple {17729#false} assume !false; {17729#false} is VALID [2019-01-31 15:02:20,774 INFO L273 TraceCheckUtils]: 54: Hoare triple {17982#(or (= (select ULTIMATE.start_main_~str1~6 0) (select ULTIMATE.start_main_~str2~6 (+ ULTIMATE.start_main_~MAX~6 (- 1)))) (<= 0 ULTIMATE.start_main_~i~6))} assume !(main_~i~6 >= 0);main_~j~6 := main_~MAX~6 - 1;main_~i~6 := 0;assume !!(main_~i~6 < main_~MAX~6);__VERIFIER_assert_#in~cond := (if main_~str1~6[main_~i~6] == main_~str2~6[main_~j~6] then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond;assume __VERIFIER_assert_~cond == 0;assume !false; {17729#false} is VALID [2019-01-31 15:02:20,775 INFO L273 TraceCheckUtils]: 53: Hoare triple {17986#(or (< ULTIMATE.start_main_~i~6 0) (< 0 ULTIMATE.start_main_~i~6) (= (+ ULTIMATE.start_main_~j~6 1) ULTIMATE.start_main_~MAX~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {17982#(or (= (select ULTIMATE.start_main_~str1~6 0) (select ULTIMATE.start_main_~str2~6 (+ ULTIMATE.start_main_~MAX~6 (- 1)))) (<= 0 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:02:20,776 INFO L273 TraceCheckUtils]: 52: Hoare triple {17990#(or (= (+ ULTIMATE.start_main_~j~6 2) ULTIMATE.start_main_~MAX~6) (< 1 ULTIMATE.start_main_~i~6) (< ULTIMATE.start_main_~i~6 1))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {17986#(or (< ULTIMATE.start_main_~i~6 0) (< 0 ULTIMATE.start_main_~i~6) (= (+ ULTIMATE.start_main_~j~6 1) ULTIMATE.start_main_~MAX~6))} is VALID [2019-01-31 15:02:20,777 INFO L273 TraceCheckUtils]: 51: Hoare triple {17994#(or (= (+ ULTIMATE.start_main_~j~6 3) ULTIMATE.start_main_~MAX~6) (< ULTIMATE.start_main_~i~6 2) (< 2 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {17990#(or (= (+ ULTIMATE.start_main_~j~6 2) ULTIMATE.start_main_~MAX~6) (< 1 ULTIMATE.start_main_~i~6) (< ULTIMATE.start_main_~i~6 1))} is VALID [2019-01-31 15:02:20,778 INFO L273 TraceCheckUtils]: 50: Hoare triple {17998#(or (= (+ ULTIMATE.start_main_~j~6 4) ULTIMATE.start_main_~MAX~6) (< ULTIMATE.start_main_~i~6 3) (< 3 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {17994#(or (= (+ ULTIMATE.start_main_~j~6 3) ULTIMATE.start_main_~MAX~6) (< ULTIMATE.start_main_~i~6 2) (< 2 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:02:20,780 INFO L273 TraceCheckUtils]: 49: Hoare triple {18002#(or (= (+ ULTIMATE.start_main_~j~6 5) ULTIMATE.start_main_~MAX~6) (< 4 ULTIMATE.start_main_~i~6) (< ULTIMATE.start_main_~i~6 4))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {17998#(or (= (+ ULTIMATE.start_main_~j~6 4) ULTIMATE.start_main_~MAX~6) (< ULTIMATE.start_main_~i~6 3) (< 3 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:02:20,781 INFO L273 TraceCheckUtils]: 48: Hoare triple {18006#(or (< ULTIMATE.start_main_~i~6 5) (< 5 ULTIMATE.start_main_~i~6) (= (+ ULTIMATE.start_main_~j~6 6) ULTIMATE.start_main_~MAX~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {18002#(or (= (+ ULTIMATE.start_main_~j~6 5) ULTIMATE.start_main_~MAX~6) (< 4 ULTIMATE.start_main_~i~6) (< ULTIMATE.start_main_~i~6 4))} is VALID [2019-01-31 15:02:20,782 INFO L273 TraceCheckUtils]: 47: Hoare triple {18010#(or (< ULTIMATE.start_main_~i~6 6) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 7)) (< 6 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {18006#(or (< ULTIMATE.start_main_~i~6 5) (< 5 ULTIMATE.start_main_~i~6) (= (+ ULTIMATE.start_main_~j~6 6) ULTIMATE.start_main_~MAX~6))} is VALID [2019-01-31 15:02:20,783 INFO L273 TraceCheckUtils]: 46: Hoare triple {18014#(or (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 8)) (< ULTIMATE.start_main_~i~6 7) (< 7 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {18010#(or (< ULTIMATE.start_main_~i~6 6) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 7)) (< 6 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:02:20,784 INFO L273 TraceCheckUtils]: 45: Hoare triple {18018#(or (< 8 ULTIMATE.start_main_~i~6) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 9)) (< ULTIMATE.start_main_~i~6 8))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {18014#(or (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 8)) (< ULTIMATE.start_main_~i~6 7) (< 7 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:02:20,785 INFO L273 TraceCheckUtils]: 44: Hoare triple {18022#(or (< ULTIMATE.start_main_~i~6 9) (= (+ ULTIMATE.start_main_~j~6 10) ULTIMATE.start_main_~MAX~6) (< 9 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {18018#(or (< 8 ULTIMATE.start_main_~i~6) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 9)) (< ULTIMATE.start_main_~i~6 8))} is VALID [2019-01-31 15:02:20,786 INFO L273 TraceCheckUtils]: 43: Hoare triple {18026#(or (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 11)) (< 10 ULTIMATE.start_main_~i~6) (< ULTIMATE.start_main_~i~6 10))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {18022#(or (< ULTIMATE.start_main_~i~6 9) (= (+ ULTIMATE.start_main_~j~6 10) ULTIMATE.start_main_~MAX~6) (< 9 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:02:20,787 INFO L273 TraceCheckUtils]: 42: Hoare triple {18030#(or (< ULTIMATE.start_main_~i~6 11) (= (+ ULTIMATE.start_main_~j~6 12) ULTIMATE.start_main_~MAX~6) (< 11 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {18026#(or (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 11)) (< 10 ULTIMATE.start_main_~i~6) (< ULTIMATE.start_main_~i~6 10))} is VALID [2019-01-31 15:02:20,788 INFO L273 TraceCheckUtils]: 41: Hoare triple {18034#(or (< 12 ULTIMATE.start_main_~i~6) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 13)) (< ULTIMATE.start_main_~i~6 12))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {18030#(or (< ULTIMATE.start_main_~i~6 11) (= (+ ULTIMATE.start_main_~j~6 12) ULTIMATE.start_main_~MAX~6) (< 11 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:02:20,789 INFO L273 TraceCheckUtils]: 40: Hoare triple {18038#(or (< ULTIMATE.start_main_~i~6 13) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 14)) (< 13 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {18034#(or (< 12 ULTIMATE.start_main_~i~6) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 13)) (< ULTIMATE.start_main_~i~6 12))} is VALID [2019-01-31 15:02:20,790 INFO L273 TraceCheckUtils]: 39: Hoare triple {18042#(or (< 14 ULTIMATE.start_main_~i~6) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 15)) (< ULTIMATE.start_main_~i~6 14))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {18038#(or (< ULTIMATE.start_main_~i~6 13) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 14)) (< 13 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:02:20,791 INFO L273 TraceCheckUtils]: 38: Hoare triple {18046#(or (< 15 ULTIMATE.start_main_~i~6) (< ULTIMATE.start_main_~i~6 15) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 16)))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {18042#(or (< 14 ULTIMATE.start_main_~i~6) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 15)) (< ULTIMATE.start_main_~i~6 14))} is VALID [2019-01-31 15:02:20,793 INFO L273 TraceCheckUtils]: 37: Hoare triple {18050#(or (< ULTIMATE.start_main_~i~6 16) (< 16 ULTIMATE.start_main_~i~6) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 17)))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {18046#(or (< 15 ULTIMATE.start_main_~i~6) (< ULTIMATE.start_main_~i~6 15) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 16)))} is VALID [2019-01-31 15:02:20,794 INFO L273 TraceCheckUtils]: 36: Hoare triple {18054#(or (< ULTIMATE.start_main_~i~6 17) (< 17 ULTIMATE.start_main_~i~6) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 18)))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {18050#(or (< ULTIMATE.start_main_~i~6 16) (< 16 ULTIMATE.start_main_~i~6) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 17)))} is VALID [2019-01-31 15:02:20,795 INFO L273 TraceCheckUtils]: 35: Hoare triple {18058#(or (< ULTIMATE.start_main_~i~6 18) (< 18 ULTIMATE.start_main_~i~6) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 19)))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {18054#(or (< ULTIMATE.start_main_~i~6 17) (< 17 ULTIMATE.start_main_~i~6) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 18)))} is VALID [2019-01-31 15:02:20,796 INFO L273 TraceCheckUtils]: 34: Hoare triple {18062#(or (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 20)) (< 19 ULTIMATE.start_main_~i~6) (< ULTIMATE.start_main_~i~6 19))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {18058#(or (< ULTIMATE.start_main_~i~6 18) (< 18 ULTIMATE.start_main_~i~6) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 19)))} is VALID [2019-01-31 15:02:20,797 INFO L273 TraceCheckUtils]: 33: Hoare triple {18066#(or (< ULTIMATE.start_main_~i~6 20) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 21)) (< 20 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {18062#(or (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 20)) (< 19 ULTIMATE.start_main_~i~6) (< ULTIMATE.start_main_~i~6 19))} is VALID [2019-01-31 15:02:20,798 INFO L273 TraceCheckUtils]: 32: Hoare triple {18070#(or (< 21 ULTIMATE.start_main_~i~6) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 22)) (< ULTIMATE.start_main_~i~6 21))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {18066#(or (< ULTIMATE.start_main_~i~6 20) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 21)) (< 20 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:02:20,800 INFO L273 TraceCheckUtils]: 31: Hoare triple {18074#(or (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 23)) (< ULTIMATE.start_main_~i~6 22) (< 22 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {18070#(or (< 21 ULTIMATE.start_main_~i~6) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 22)) (< ULTIMATE.start_main_~i~6 21))} is VALID [2019-01-31 15:02:20,801 INFO L273 TraceCheckUtils]: 30: Hoare triple {18078#(or (< ULTIMATE.start_main_~i~6 23) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 24)) (< 23 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {18074#(or (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 23)) (< ULTIMATE.start_main_~i~6 22) (< 22 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:02:20,802 INFO L273 TraceCheckUtils]: 29: Hoare triple {18082#(or (< 24 ULTIMATE.start_main_~i~6) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 25)) (< ULTIMATE.start_main_~i~6 24))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {18078#(or (< ULTIMATE.start_main_~i~6 23) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 24)) (< 23 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:02:20,803 INFO L273 TraceCheckUtils]: 28: Hoare triple {18086#(or (< 25 ULTIMATE.start_main_~i~6) (< ULTIMATE.start_main_~i~6 25) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 26)))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {18082#(or (< 24 ULTIMATE.start_main_~i~6) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 25)) (< ULTIMATE.start_main_~i~6 24))} is VALID [2019-01-31 15:02:20,804 INFO L273 TraceCheckUtils]: 27: Hoare triple {17728#true} assume !(main_~i~6 < main_~MAX~6);main_~str1~6 := main_~str1~6[main_~MAX~6 - 1 := 0];main_~j~6 := 0;main_~i~6 := main_~MAX~6 - 1; {18086#(or (< 25 ULTIMATE.start_main_~i~6) (< ULTIMATE.start_main_~i~6 25) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 26)))} is VALID [2019-01-31 15:02:20,804 INFO L273 TraceCheckUtils]: 26: Hoare triple {17728#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {17728#true} is VALID [2019-01-31 15:02:20,804 INFO L273 TraceCheckUtils]: 25: Hoare triple {17728#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {17728#true} is VALID [2019-01-31 15:02:20,805 INFO L273 TraceCheckUtils]: 24: Hoare triple {17728#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {17728#true} is VALID [2019-01-31 15:02:20,805 INFO L273 TraceCheckUtils]: 23: Hoare triple {17728#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {17728#true} is VALID [2019-01-31 15:02:20,805 INFO L273 TraceCheckUtils]: 22: Hoare triple {17728#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {17728#true} is VALID [2019-01-31 15:02:20,805 INFO L273 TraceCheckUtils]: 21: Hoare triple {17728#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {17728#true} is VALID [2019-01-31 15:02:20,805 INFO L273 TraceCheckUtils]: 20: Hoare triple {17728#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {17728#true} is VALID [2019-01-31 15:02:20,805 INFO L273 TraceCheckUtils]: 19: Hoare triple {17728#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {17728#true} is VALID [2019-01-31 15:02:20,806 INFO L273 TraceCheckUtils]: 18: Hoare triple {17728#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {17728#true} is VALID [2019-01-31 15:02:20,806 INFO L273 TraceCheckUtils]: 17: Hoare triple {17728#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {17728#true} is VALID [2019-01-31 15:02:20,806 INFO L273 TraceCheckUtils]: 16: Hoare triple {17728#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {17728#true} is VALID [2019-01-31 15:02:20,806 INFO L273 TraceCheckUtils]: 15: Hoare triple {17728#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {17728#true} is VALID [2019-01-31 15:02:20,806 INFO L273 TraceCheckUtils]: 14: Hoare triple {17728#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {17728#true} is VALID [2019-01-31 15:02:20,806 INFO L273 TraceCheckUtils]: 13: Hoare triple {17728#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {17728#true} is VALID [2019-01-31 15:02:20,807 INFO L273 TraceCheckUtils]: 12: Hoare triple {17728#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {17728#true} is VALID [2019-01-31 15:02:20,807 INFO L273 TraceCheckUtils]: 11: Hoare triple {17728#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {17728#true} is VALID [2019-01-31 15:02:20,807 INFO L273 TraceCheckUtils]: 10: Hoare triple {17728#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {17728#true} is VALID [2019-01-31 15:02:20,807 INFO L273 TraceCheckUtils]: 9: Hoare triple {17728#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {17728#true} is VALID [2019-01-31 15:02:20,807 INFO L273 TraceCheckUtils]: 8: Hoare triple {17728#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {17728#true} is VALID [2019-01-31 15:02:20,807 INFO L273 TraceCheckUtils]: 7: Hoare triple {17728#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {17728#true} is VALID [2019-01-31 15:02:20,807 INFO L273 TraceCheckUtils]: 6: Hoare triple {17728#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {17728#true} is VALID [2019-01-31 15:02:20,807 INFO L273 TraceCheckUtils]: 5: Hoare triple {17728#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {17728#true} is VALID [2019-01-31 15:02:20,807 INFO L273 TraceCheckUtils]: 4: Hoare triple {17728#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {17728#true} is VALID [2019-01-31 15:02:20,808 INFO L273 TraceCheckUtils]: 3: Hoare triple {17728#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {17728#true} is VALID [2019-01-31 15:02:20,808 INFO L273 TraceCheckUtils]: 2: Hoare triple {17728#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {17728#true} is VALID [2019-01-31 15:02:20,808 INFO L273 TraceCheckUtils]: 1: Hoare triple {17728#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {17728#true} is VALID [2019-01-31 15:02:20,808 INFO L273 TraceCheckUtils]: 0: Hoare triple {17728#true} havoc main_#res;havoc main_#t~nondet0, main_#t~nondet2, main_#t~post1, main_#t~post4, main_#t~post3, main_#t~post6, main_#t~post5, main_~MAX~6, main_~str1~6, main_~str2~6, main_~cont~6, main_~i~6, main_~j~6;main_~MAX~6 := (if main_#t~nondet0 % 4294967296 % 4294967296 <= 2147483647 then main_#t~nondet0 % 4294967296 % 4294967296 else main_#t~nondet0 % 4294967296 % 4294967296 - 4294967296);havoc main_#t~nondet0;havoc main_~str1~6;havoc main_~str2~6;havoc main_~cont~6;havoc main_~i~6;havoc main_~j~6;main_~cont~6 := 0;main_~i~6 := 0; {17728#true} is VALID [2019-01-31 15:02:20,812 INFO L134 CoverageAnalysis]: Checked inductivity of 702 backedges. 0 proven. 351 refuted. 0 times theorem prover too weak. 351 trivial. 0 not checked. [2019-01-31 15:02:20,830 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-01-31 15:02:20,830 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [55, 29, 29] total 110 [2019-01-31 15:02:20,830 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-01-31 15:02:20,831 INFO L78 Accepts]: Start accepts. Automaton has 83 states. Word has length 56 [2019-01-31 15:02:20,831 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-01-31 15:02:20,831 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 83 states. [2019-01-31 15:02:20,933 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 86 edges. 86 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-01-31 15:02:20,933 INFO L459 AbstractCegarLoop]: Interpolant automaton has 83 states [2019-01-31 15:02:20,934 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 83 interpolants. [2019-01-31 15:02:20,934 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1622, Invalid=10368, Unknown=0, NotChecked=0, Total=11990 [2019-01-31 15:02:20,934 INFO L87 Difference]: Start difference. First operand 57 states and 58 transitions. Second operand 83 states. [2019-01-31 15:02:36,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 15:02:36,680 INFO L93 Difference]: Finished difference Result 89 states and 93 transitions. [2019-01-31 15:02:36,680 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 86 states. [2019-01-31 15:02:36,680 INFO L78 Accepts]: Start accepts. Automaton has 83 states. Word has length 56 [2019-01-31 15:02:36,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-31 15:02:36,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 83 states. [2019-01-31 15:02:36,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 93 transitions. [2019-01-31 15:02:36,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 83 states. [2019-01-31 15:02:36,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 93 transitions. [2019-01-31 15:02:36,682 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 86 states and 93 transitions. [2019-01-31 15:02:36,784 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 93 edges. 93 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-01-31 15:02:36,785 INFO L225 Difference]: With dead ends: 89 [2019-01-31 15:02:36,786 INFO L226 Difference]: Without dead ends: 59 [2019-01-31 15:02:36,787 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 196 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 139 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1594 ImplicationChecksByTransitivity, 8.3s TimeCoverageRelationStatistics Valid=2617, Invalid=17123, Unknown=0, NotChecked=0, Total=19740 [2019-01-31 15:02:36,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2019-01-31 15:02:37,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59. [2019-01-31 15:02:37,987 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-01-31 15:02:37,987 INFO L82 GeneralOperation]: Start isEquivalent. First operand 59 states. Second operand 59 states. [2019-01-31 15:02:37,988 INFO L74 IsIncluded]: Start isIncluded. First operand 59 states. Second operand 59 states. [2019-01-31 15:02:37,988 INFO L87 Difference]: Start difference. First operand 59 states. Second operand 59 states. [2019-01-31 15:02:37,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 15:02:37,989 INFO L93 Difference]: Finished difference Result 59 states and 60 transitions. [2019-01-31 15:02:37,989 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 60 transitions. [2019-01-31 15:02:37,989 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-31 15:02:37,989 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-01-31 15:02:37,990 INFO L74 IsIncluded]: Start isIncluded. First operand 59 states. Second operand 59 states. [2019-01-31 15:02:37,990 INFO L87 Difference]: Start difference. First operand 59 states. Second operand 59 states. [2019-01-31 15:02:37,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 15:02:37,991 INFO L93 Difference]: Finished difference Result 59 states and 60 transitions. [2019-01-31 15:02:37,991 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 60 transitions. [2019-01-31 15:02:37,991 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-31 15:02:37,991 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-01-31 15:02:37,992 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-01-31 15:02:37,992 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-01-31 15:02:37,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2019-01-31 15:02:37,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 60 transitions. [2019-01-31 15:02:37,992 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 60 transitions. Word has length 56 [2019-01-31 15:02:37,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-31 15:02:37,993 INFO L480 AbstractCegarLoop]: Abstraction has 59 states and 60 transitions. [2019-01-31 15:02:37,993 INFO L481 AbstractCegarLoop]: Interpolant automaton has 83 states. [2019-01-31 15:02:37,993 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 60 transitions. [2019-01-31 15:02:37,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2019-01-31 15:02:37,993 INFO L394 BasicCegarLoop]: Found error trace [2019-01-31 15:02:37,994 INFO L402 BasicCegarLoop]: trace histogram [27, 27, 1, 1, 1, 1] [2019-01-31 15:02:37,994 INFO L423 AbstractCegarLoop]: === Iteration 42 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2019-01-31 15:02:37,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-31 15:02:37,994 INFO L82 PathProgramCache]: Analyzing trace with hash -190119787, now seen corresponding path program 40 times [2019-01-31 15:02:37,994 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-01-31 15:02:37,995 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-31 15:02:37,995 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-01-31 15:02:37,995 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-31 15:02:37,995 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-01-31 15:02:38,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-31 15:02:40,049 INFO L273 TraceCheckUtils]: 0: Hoare triple {18641#true} havoc main_#res;havoc main_#t~nondet0, main_#t~nondet2, main_#t~post1, main_#t~post4, main_#t~post3, main_#t~post6, main_#t~post5, main_~MAX~6, main_~str1~6, main_~str2~6, main_~cont~6, main_~i~6, main_~j~6;main_~MAX~6 := (if main_#t~nondet0 % 4294967296 % 4294967296 <= 2147483647 then main_#t~nondet0 % 4294967296 % 4294967296 else main_#t~nondet0 % 4294967296 % 4294967296 - 4294967296);havoc main_#t~nondet0;havoc main_~str1~6;havoc main_~str2~6;havoc main_~cont~6;havoc main_~i~6;havoc main_~j~6;main_~cont~6 := 0;main_~i~6 := 0; {18643#(and (<= ULTIMATE.start_main_~i~6 0) (<= 0 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:02:40,050 INFO L273 TraceCheckUtils]: 1: Hoare triple {18643#(and (<= ULTIMATE.start_main_~i~6 0) (<= 0 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {18644#(and (<= ULTIMATE.start_main_~i~6 1) (<= 1 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:02:40,051 INFO L273 TraceCheckUtils]: 2: Hoare triple {18644#(and (<= ULTIMATE.start_main_~i~6 1) (<= 1 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {18645#(and (<= ULTIMATE.start_main_~i~6 2) (<= 2 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:02:40,052 INFO L273 TraceCheckUtils]: 3: Hoare triple {18645#(and (<= ULTIMATE.start_main_~i~6 2) (<= 2 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {18646#(and (<= 3 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 3))} is VALID [2019-01-31 15:02:40,053 INFO L273 TraceCheckUtils]: 4: Hoare triple {18646#(and (<= 3 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 3))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {18647#(and (<= ULTIMATE.start_main_~i~6 4) (<= 4 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:02:40,054 INFO L273 TraceCheckUtils]: 5: Hoare triple {18647#(and (<= ULTIMATE.start_main_~i~6 4) (<= 4 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {18648#(and (<= 5 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 5))} is VALID [2019-01-31 15:02:40,055 INFO L273 TraceCheckUtils]: 6: Hoare triple {18648#(and (<= 5 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 5))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {18649#(and (<= ULTIMATE.start_main_~i~6 6) (<= 6 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:02:40,055 INFO L273 TraceCheckUtils]: 7: Hoare triple {18649#(and (<= ULTIMATE.start_main_~i~6 6) (<= 6 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {18650#(and (<= 7 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 7))} is VALID [2019-01-31 15:02:40,056 INFO L273 TraceCheckUtils]: 8: Hoare triple {18650#(and (<= 7 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 7))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {18651#(and (<= ULTIMATE.start_main_~i~6 8) (<= 8 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:02:40,057 INFO L273 TraceCheckUtils]: 9: Hoare triple {18651#(and (<= ULTIMATE.start_main_~i~6 8) (<= 8 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {18652#(and (<= ULTIMATE.start_main_~i~6 9) (<= 9 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:02:40,058 INFO L273 TraceCheckUtils]: 10: Hoare triple {18652#(and (<= ULTIMATE.start_main_~i~6 9) (<= 9 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {18653#(and (<= ULTIMATE.start_main_~i~6 10) (<= 10 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:02:40,059 INFO L273 TraceCheckUtils]: 11: Hoare triple {18653#(and (<= ULTIMATE.start_main_~i~6 10) (<= 10 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {18654#(and (<= 11 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 11))} is VALID [2019-01-31 15:02:40,060 INFO L273 TraceCheckUtils]: 12: Hoare triple {18654#(and (<= 11 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 11))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {18655#(and (<= ULTIMATE.start_main_~i~6 12) (<= 12 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:02:40,061 INFO L273 TraceCheckUtils]: 13: Hoare triple {18655#(and (<= ULTIMATE.start_main_~i~6 12) (<= 12 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {18656#(and (<= ULTIMATE.start_main_~i~6 13) (<= 13 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:02:40,062 INFO L273 TraceCheckUtils]: 14: Hoare triple {18656#(and (<= ULTIMATE.start_main_~i~6 13) (<= 13 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {18657#(and (<= ULTIMATE.start_main_~i~6 14) (<= 14 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:02:40,063 INFO L273 TraceCheckUtils]: 15: Hoare triple {18657#(and (<= ULTIMATE.start_main_~i~6 14) (<= 14 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {18658#(and (<= 15 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 15))} is VALID [2019-01-31 15:02:40,064 INFO L273 TraceCheckUtils]: 16: Hoare triple {18658#(and (<= 15 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 15))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {18659#(and (<= 16 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 16))} is VALID [2019-01-31 15:02:40,065 INFO L273 TraceCheckUtils]: 17: Hoare triple {18659#(and (<= 16 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 16))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {18660#(and (<= ULTIMATE.start_main_~i~6 17) (<= 17 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:02:40,066 INFO L273 TraceCheckUtils]: 18: Hoare triple {18660#(and (<= ULTIMATE.start_main_~i~6 17) (<= 17 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {18661#(and (<= ULTIMATE.start_main_~i~6 18) (<= 18 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:02:40,067 INFO L273 TraceCheckUtils]: 19: Hoare triple {18661#(and (<= ULTIMATE.start_main_~i~6 18) (<= 18 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {18662#(and (<= ULTIMATE.start_main_~i~6 19) (<= 19 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:02:40,068 INFO L273 TraceCheckUtils]: 20: Hoare triple {18662#(and (<= ULTIMATE.start_main_~i~6 19) (<= 19 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {18663#(and (<= ULTIMATE.start_main_~i~6 20) (<= 20 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:02:40,069 INFO L273 TraceCheckUtils]: 21: Hoare triple {18663#(and (<= ULTIMATE.start_main_~i~6 20) (<= 20 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {18664#(and (<= ULTIMATE.start_main_~i~6 21) (<= 21 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:02:40,070 INFO L273 TraceCheckUtils]: 22: Hoare triple {18664#(and (<= ULTIMATE.start_main_~i~6 21) (<= 21 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {18665#(and (<= 22 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 22))} is VALID [2019-01-31 15:02:40,071 INFO L273 TraceCheckUtils]: 23: Hoare triple {18665#(and (<= 22 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 22))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {18666#(and (<= 23 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 23))} is VALID [2019-01-31 15:02:40,072 INFO L273 TraceCheckUtils]: 24: Hoare triple {18666#(and (<= 23 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 23))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {18667#(and (<= ULTIMATE.start_main_~i~6 24) (<= 24 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:02:40,072 INFO L273 TraceCheckUtils]: 25: Hoare triple {18667#(and (<= ULTIMATE.start_main_~i~6 24) (<= 24 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {18668#(and (<= ULTIMATE.start_main_~i~6 25) (<= 25 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:02:40,074 INFO L273 TraceCheckUtils]: 26: Hoare triple {18668#(and (<= ULTIMATE.start_main_~i~6 25) (<= 25 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {18669#(or (not (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 1))) (and (<= 26 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 26)))} is VALID [2019-01-31 15:02:40,075 INFO L273 TraceCheckUtils]: 27: Hoare triple {18669#(or (not (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 1))) (and (<= 26 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 26)))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {18670#(or (<= (+ ULTIMATE.start_main_~i~6 1) ULTIMATE.start_main_~MAX~6) (= 27 ULTIMATE.start_main_~MAX~6))} is VALID [2019-01-31 15:02:40,076 INFO L273 TraceCheckUtils]: 28: Hoare triple {18670#(or (<= (+ ULTIMATE.start_main_~i~6 1) ULTIMATE.start_main_~MAX~6) (= 27 ULTIMATE.start_main_~MAX~6))} assume !(main_~i~6 < main_~MAX~6);main_~str1~6 := main_~str1~6[main_~MAX~6 - 1 := 0];main_~j~6 := 0;main_~i~6 := main_~MAX~6 - 1; {18671#(= (+ ULTIMATE.start_main_~j~6 27) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:02:40,077 INFO L273 TraceCheckUtils]: 29: Hoare triple {18671#(= (+ ULTIMATE.start_main_~j~6 27) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {18672#(= (+ ULTIMATE.start_main_~j~6 26) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:02:40,077 INFO L273 TraceCheckUtils]: 30: Hoare triple {18672#(= (+ ULTIMATE.start_main_~j~6 26) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {18673#(= (+ ULTIMATE.start_main_~j~6 25) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:02:40,078 INFO L273 TraceCheckUtils]: 31: Hoare triple {18673#(= (+ ULTIMATE.start_main_~j~6 25) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {18674#(= (+ ULTIMATE.start_main_~j~6 24) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:02:40,079 INFO L273 TraceCheckUtils]: 32: Hoare triple {18674#(= (+ ULTIMATE.start_main_~j~6 24) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {18675#(= (+ ULTIMATE.start_main_~j~6 23) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:02:40,080 INFO L273 TraceCheckUtils]: 33: Hoare triple {18675#(= (+ ULTIMATE.start_main_~j~6 23) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {18676#(= (+ ULTIMATE.start_main_~j~6 22) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:02:40,081 INFO L273 TraceCheckUtils]: 34: Hoare triple {18676#(= (+ ULTIMATE.start_main_~j~6 22) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {18677#(= (+ ULTIMATE.start_main_~j~6 21) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:02:40,082 INFO L273 TraceCheckUtils]: 35: Hoare triple {18677#(= (+ ULTIMATE.start_main_~j~6 21) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {18678#(= (+ ULTIMATE.start_main_~j~6 20) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:02:40,083 INFO L273 TraceCheckUtils]: 36: Hoare triple {18678#(= (+ ULTIMATE.start_main_~j~6 20) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {18679#(= (+ ULTIMATE.start_main_~j~6 19) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:02:40,084 INFO L273 TraceCheckUtils]: 37: Hoare triple {18679#(= (+ ULTIMATE.start_main_~j~6 19) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {18680#(= (+ ULTIMATE.start_main_~j~6 18) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:02:40,085 INFO L273 TraceCheckUtils]: 38: Hoare triple {18680#(= (+ ULTIMATE.start_main_~j~6 18) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {18681#(= (+ ULTIMATE.start_main_~j~6 17) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:02:40,086 INFO L273 TraceCheckUtils]: 39: Hoare triple {18681#(= (+ ULTIMATE.start_main_~j~6 17) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {18682#(= (+ ULTIMATE.start_main_~j~6 16) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:02:40,087 INFO L273 TraceCheckUtils]: 40: Hoare triple {18682#(= (+ ULTIMATE.start_main_~j~6 16) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {18683#(= (+ ULTIMATE.start_main_~j~6 15) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:02:40,088 INFO L273 TraceCheckUtils]: 41: Hoare triple {18683#(= (+ ULTIMATE.start_main_~j~6 15) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {18684#(= (+ ULTIMATE.start_main_~j~6 14) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:02:40,089 INFO L273 TraceCheckUtils]: 42: Hoare triple {18684#(= (+ ULTIMATE.start_main_~j~6 14) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {18685#(= (+ ULTIMATE.start_main_~j~6 13) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:02:40,090 INFO L273 TraceCheckUtils]: 43: Hoare triple {18685#(= (+ ULTIMATE.start_main_~j~6 13) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {18686#(= (+ ULTIMATE.start_main_~j~6 12) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:02:40,091 INFO L273 TraceCheckUtils]: 44: Hoare triple {18686#(= (+ ULTIMATE.start_main_~j~6 12) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {18687#(= (+ ULTIMATE.start_main_~j~6 11) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:02:40,092 INFO L273 TraceCheckUtils]: 45: Hoare triple {18687#(= (+ ULTIMATE.start_main_~j~6 11) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {18688#(= (+ ULTIMATE.start_main_~j~6 10) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:02:40,093 INFO L273 TraceCheckUtils]: 46: Hoare triple {18688#(= (+ ULTIMATE.start_main_~j~6 10) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {18689#(= (+ ULTIMATE.start_main_~j~6 9) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:02:40,094 INFO L273 TraceCheckUtils]: 47: Hoare triple {18689#(= (+ ULTIMATE.start_main_~j~6 9) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {18690#(= (+ ULTIMATE.start_main_~j~6 8) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:02:40,095 INFO L273 TraceCheckUtils]: 48: Hoare triple {18690#(= (+ ULTIMATE.start_main_~j~6 8) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {18691#(= (+ ULTIMATE.start_main_~j~6 7) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:02:40,096 INFO L273 TraceCheckUtils]: 49: Hoare triple {18691#(= (+ ULTIMATE.start_main_~j~6 7) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {18692#(= (+ ULTIMATE.start_main_~j~6 6) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:02:40,097 INFO L273 TraceCheckUtils]: 50: Hoare triple {18692#(= (+ ULTIMATE.start_main_~j~6 6) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {18693#(= (+ ULTIMATE.start_main_~j~6 5) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:02:40,098 INFO L273 TraceCheckUtils]: 51: Hoare triple {18693#(= (+ ULTIMATE.start_main_~j~6 5) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {18694#(= (+ ULTIMATE.start_main_~j~6 4) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:02:40,099 INFO L273 TraceCheckUtils]: 52: Hoare triple {18694#(= (+ ULTIMATE.start_main_~j~6 4) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {18695#(= (+ ULTIMATE.start_main_~j~6 3) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:02:40,100 INFO L273 TraceCheckUtils]: 53: Hoare triple {18695#(= (+ ULTIMATE.start_main_~j~6 3) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {18696#(= (+ ULTIMATE.start_main_~j~6 2) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:02:40,101 INFO L273 TraceCheckUtils]: 54: Hoare triple {18696#(= (+ ULTIMATE.start_main_~j~6 2) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {18697#(= (+ ULTIMATE.start_main_~j~6 1) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:02:40,105 INFO L273 TraceCheckUtils]: 55: Hoare triple {18697#(= (+ ULTIMATE.start_main_~j~6 1) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {18698#(= (select ULTIMATE.start_main_~str1~6 0) (select ULTIMATE.start_main_~str2~6 (+ ULTIMATE.start_main_~MAX~6 (- 1))))} is VALID [2019-01-31 15:02:40,106 INFO L273 TraceCheckUtils]: 56: Hoare triple {18698#(= (select ULTIMATE.start_main_~str1~6 0) (select ULTIMATE.start_main_~str2~6 (+ ULTIMATE.start_main_~MAX~6 (- 1))))} assume !(main_~i~6 >= 0);main_~j~6 := main_~MAX~6 - 1;main_~i~6 := 0;assume !!(main_~i~6 < main_~MAX~6);__VERIFIER_assert_#in~cond := (if main_~str1~6[main_~i~6] == main_~str2~6[main_~j~6] then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond;assume __VERIFIER_assert_~cond == 0;assume !false; {18642#false} is VALID [2019-01-31 15:02:40,106 INFO L273 TraceCheckUtils]: 57: Hoare triple {18642#false} assume !false; {18642#false} is VALID [2019-01-31 15:02:40,111 INFO L134 CoverageAnalysis]: Checked inductivity of 756 backedges. 0 proven. 756 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-31 15:02:40,112 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-31 15:02:40,112 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-01-31 15:02:40,112 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-01-31 15:02:40,112 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-01-31 15:02:40,112 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-31 15:02:40,112 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 41 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 41 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-01-31 15:02:40,121 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-31 15:02:40,121 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2019-01-31 15:02:40,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-31 15:02:40,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-31 15:02:40,199 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-31 15:02:42,613 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2019-01-31 15:02:42,614 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-01-31 15:02:42,620 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-31 15:02:42,621 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:15, output treesize:14 [2019-01-31 15:02:42,623 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-01-31 15:02:42,623 WARN L398 uantifierElimination]: Input elimination task: ∃ [v_ULTIMATE.start_main_~str2~6_553]. (and (<= ULTIMATE.start_main_~MAX~6 27) (<= 27 ULTIMATE.start_main_~MAX~6) (= (store v_ULTIMATE.start_main_~str2~6_553 26 (select ULTIMATE.start_main_~str1~6 0)) ULTIMATE.start_main_~str2~6)) [2019-01-31 15:02:42,623 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (and (<= ULTIMATE.start_main_~MAX~6 27) (= (select ULTIMATE.start_main_~str2~6 26) (select ULTIMATE.start_main_~str1~6 0)) (<= 27 ULTIMATE.start_main_~MAX~6)) [2019-01-31 15:02:42,711 INFO L273 TraceCheckUtils]: 0: Hoare triple {18641#true} havoc main_#res;havoc main_#t~nondet0, main_#t~nondet2, main_#t~post1, main_#t~post4, main_#t~post3, main_#t~post6, main_#t~post5, main_~MAX~6, main_~str1~6, main_~str2~6, main_~cont~6, main_~i~6, main_~j~6;main_~MAX~6 := (if main_#t~nondet0 % 4294967296 % 4294967296 <= 2147483647 then main_#t~nondet0 % 4294967296 % 4294967296 else main_#t~nondet0 % 4294967296 % 4294967296 - 4294967296);havoc main_#t~nondet0;havoc main_~str1~6;havoc main_~str2~6;havoc main_~cont~6;havoc main_~i~6;havoc main_~j~6;main_~cont~6 := 0;main_~i~6 := 0; {18643#(and (<= ULTIMATE.start_main_~i~6 0) (<= 0 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:02:42,712 INFO L273 TraceCheckUtils]: 1: Hoare triple {18643#(and (<= ULTIMATE.start_main_~i~6 0) (<= 0 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {18644#(and (<= ULTIMATE.start_main_~i~6 1) (<= 1 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:02:42,713 INFO L273 TraceCheckUtils]: 2: Hoare triple {18644#(and (<= ULTIMATE.start_main_~i~6 1) (<= 1 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {18645#(and (<= ULTIMATE.start_main_~i~6 2) (<= 2 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:02:42,713 INFO L273 TraceCheckUtils]: 3: Hoare triple {18645#(and (<= ULTIMATE.start_main_~i~6 2) (<= 2 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {18646#(and (<= 3 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 3))} is VALID [2019-01-31 15:02:42,714 INFO L273 TraceCheckUtils]: 4: Hoare triple {18646#(and (<= 3 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 3))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {18647#(and (<= ULTIMATE.start_main_~i~6 4) (<= 4 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:02:42,715 INFO L273 TraceCheckUtils]: 5: Hoare triple {18647#(and (<= ULTIMATE.start_main_~i~6 4) (<= 4 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {18648#(and (<= 5 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 5))} is VALID [2019-01-31 15:02:42,716 INFO L273 TraceCheckUtils]: 6: Hoare triple {18648#(and (<= 5 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 5))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {18649#(and (<= ULTIMATE.start_main_~i~6 6) (<= 6 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:02:42,716 INFO L273 TraceCheckUtils]: 7: Hoare triple {18649#(and (<= ULTIMATE.start_main_~i~6 6) (<= 6 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {18650#(and (<= 7 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 7))} is VALID [2019-01-31 15:02:42,717 INFO L273 TraceCheckUtils]: 8: Hoare triple {18650#(and (<= 7 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 7))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {18651#(and (<= ULTIMATE.start_main_~i~6 8) (<= 8 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:02:42,718 INFO L273 TraceCheckUtils]: 9: Hoare triple {18651#(and (<= ULTIMATE.start_main_~i~6 8) (<= 8 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {18652#(and (<= ULTIMATE.start_main_~i~6 9) (<= 9 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:02:42,719 INFO L273 TraceCheckUtils]: 10: Hoare triple {18652#(and (<= ULTIMATE.start_main_~i~6 9) (<= 9 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {18653#(and (<= ULTIMATE.start_main_~i~6 10) (<= 10 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:02:42,720 INFO L273 TraceCheckUtils]: 11: Hoare triple {18653#(and (<= ULTIMATE.start_main_~i~6 10) (<= 10 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {18654#(and (<= 11 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 11))} is VALID [2019-01-31 15:02:42,721 INFO L273 TraceCheckUtils]: 12: Hoare triple {18654#(and (<= 11 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 11))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {18655#(and (<= ULTIMATE.start_main_~i~6 12) (<= 12 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:02:42,722 INFO L273 TraceCheckUtils]: 13: Hoare triple {18655#(and (<= ULTIMATE.start_main_~i~6 12) (<= 12 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {18656#(and (<= ULTIMATE.start_main_~i~6 13) (<= 13 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:02:42,723 INFO L273 TraceCheckUtils]: 14: Hoare triple {18656#(and (<= ULTIMATE.start_main_~i~6 13) (<= 13 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {18657#(and (<= ULTIMATE.start_main_~i~6 14) (<= 14 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:02:42,724 INFO L273 TraceCheckUtils]: 15: Hoare triple {18657#(and (<= ULTIMATE.start_main_~i~6 14) (<= 14 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {18658#(and (<= 15 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 15))} is VALID [2019-01-31 15:02:42,725 INFO L273 TraceCheckUtils]: 16: Hoare triple {18658#(and (<= 15 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 15))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {18659#(and (<= 16 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 16))} is VALID [2019-01-31 15:02:42,726 INFO L273 TraceCheckUtils]: 17: Hoare triple {18659#(and (<= 16 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 16))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {18660#(and (<= ULTIMATE.start_main_~i~6 17) (<= 17 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:02:42,727 INFO L273 TraceCheckUtils]: 18: Hoare triple {18660#(and (<= ULTIMATE.start_main_~i~6 17) (<= 17 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {18661#(and (<= ULTIMATE.start_main_~i~6 18) (<= 18 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:02:42,728 INFO L273 TraceCheckUtils]: 19: Hoare triple {18661#(and (<= ULTIMATE.start_main_~i~6 18) (<= 18 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {18662#(and (<= ULTIMATE.start_main_~i~6 19) (<= 19 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:02:42,729 INFO L273 TraceCheckUtils]: 20: Hoare triple {18662#(and (<= ULTIMATE.start_main_~i~6 19) (<= 19 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {18663#(and (<= ULTIMATE.start_main_~i~6 20) (<= 20 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:02:42,730 INFO L273 TraceCheckUtils]: 21: Hoare triple {18663#(and (<= ULTIMATE.start_main_~i~6 20) (<= 20 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {18664#(and (<= ULTIMATE.start_main_~i~6 21) (<= 21 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:02:42,730 INFO L273 TraceCheckUtils]: 22: Hoare triple {18664#(and (<= ULTIMATE.start_main_~i~6 21) (<= 21 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {18665#(and (<= 22 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 22))} is VALID [2019-01-31 15:02:42,731 INFO L273 TraceCheckUtils]: 23: Hoare triple {18665#(and (<= 22 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 22))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {18666#(and (<= 23 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 23))} is VALID [2019-01-31 15:02:42,732 INFO L273 TraceCheckUtils]: 24: Hoare triple {18666#(and (<= 23 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 23))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {18667#(and (<= ULTIMATE.start_main_~i~6 24) (<= 24 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:02:42,733 INFO L273 TraceCheckUtils]: 25: Hoare triple {18667#(and (<= ULTIMATE.start_main_~i~6 24) (<= 24 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {18668#(and (<= ULTIMATE.start_main_~i~6 25) (<= 25 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:02:42,734 INFO L273 TraceCheckUtils]: 26: Hoare triple {18668#(and (<= ULTIMATE.start_main_~i~6 25) (<= 25 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {18780#(and (<= 26 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 26))} is VALID [2019-01-31 15:02:42,735 INFO L273 TraceCheckUtils]: 27: Hoare triple {18780#(and (<= 26 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 26))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {18784#(and (<= ULTIMATE.start_main_~i~6 27) (<= 27 ULTIMATE.start_main_~MAX~6))} is VALID [2019-01-31 15:02:42,736 INFO L273 TraceCheckUtils]: 28: Hoare triple {18784#(and (<= ULTIMATE.start_main_~i~6 27) (<= 27 ULTIMATE.start_main_~MAX~6))} assume !(main_~i~6 < main_~MAX~6);main_~str1~6 := main_~str1~6[main_~MAX~6 - 1 := 0];main_~j~6 := 0;main_~i~6 := main_~MAX~6 - 1; {18788#(and (= ULTIMATE.start_main_~j~6 0) (<= ULTIMATE.start_main_~MAX~6 27) (<= 27 ULTIMATE.start_main_~MAX~6))} is VALID [2019-01-31 15:02:42,737 INFO L273 TraceCheckUtils]: 29: Hoare triple {18788#(and (= ULTIMATE.start_main_~j~6 0) (<= ULTIMATE.start_main_~MAX~6 27) (<= 27 ULTIMATE.start_main_~MAX~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {18792#(and (= ULTIMATE.start_main_~j~6 1) (<= ULTIMATE.start_main_~MAX~6 27) (<= 27 ULTIMATE.start_main_~MAX~6))} is VALID [2019-01-31 15:02:42,738 INFO L273 TraceCheckUtils]: 30: Hoare triple {18792#(and (= ULTIMATE.start_main_~j~6 1) (<= ULTIMATE.start_main_~MAX~6 27) (<= 27 ULTIMATE.start_main_~MAX~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {18796#(and (<= ULTIMATE.start_main_~MAX~6 27) (<= 27 ULTIMATE.start_main_~MAX~6) (= ULTIMATE.start_main_~j~6 2))} is VALID [2019-01-31 15:02:42,738 INFO L273 TraceCheckUtils]: 31: Hoare triple {18796#(and (<= ULTIMATE.start_main_~MAX~6 27) (<= 27 ULTIMATE.start_main_~MAX~6) (= ULTIMATE.start_main_~j~6 2))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {18800#(and (<= ULTIMATE.start_main_~MAX~6 27) (<= 27 ULTIMATE.start_main_~MAX~6) (= ULTIMATE.start_main_~j~6 3))} is VALID [2019-01-31 15:02:42,739 INFO L273 TraceCheckUtils]: 32: Hoare triple {18800#(and (<= ULTIMATE.start_main_~MAX~6 27) (<= 27 ULTIMATE.start_main_~MAX~6) (= ULTIMATE.start_main_~j~6 3))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {18804#(and (<= ULTIMATE.start_main_~MAX~6 27) (= ULTIMATE.start_main_~j~6 4) (<= 27 ULTIMATE.start_main_~MAX~6))} is VALID [2019-01-31 15:02:42,740 INFO L273 TraceCheckUtils]: 33: Hoare triple {18804#(and (<= ULTIMATE.start_main_~MAX~6 27) (= ULTIMATE.start_main_~j~6 4) (<= 27 ULTIMATE.start_main_~MAX~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {18808#(and (= ULTIMATE.start_main_~j~6 5) (<= ULTIMATE.start_main_~MAX~6 27) (<= 27 ULTIMATE.start_main_~MAX~6))} is VALID [2019-01-31 15:02:42,741 INFO L273 TraceCheckUtils]: 34: Hoare triple {18808#(and (= ULTIMATE.start_main_~j~6 5) (<= ULTIMATE.start_main_~MAX~6 27) (<= 27 ULTIMATE.start_main_~MAX~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {18812#(and (<= ULTIMATE.start_main_~MAX~6 27) (<= 27 ULTIMATE.start_main_~MAX~6) (= ULTIMATE.start_main_~j~6 6))} is VALID [2019-01-31 15:02:42,742 INFO L273 TraceCheckUtils]: 35: Hoare triple {18812#(and (<= ULTIMATE.start_main_~MAX~6 27) (<= 27 ULTIMATE.start_main_~MAX~6) (= ULTIMATE.start_main_~j~6 6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {18816#(and (= ULTIMATE.start_main_~j~6 7) (<= ULTIMATE.start_main_~MAX~6 27) (<= 27 ULTIMATE.start_main_~MAX~6))} is VALID [2019-01-31 15:02:42,743 INFO L273 TraceCheckUtils]: 36: Hoare triple {18816#(and (= ULTIMATE.start_main_~j~6 7) (<= ULTIMATE.start_main_~MAX~6 27) (<= 27 ULTIMATE.start_main_~MAX~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {18820#(and (= ULTIMATE.start_main_~j~6 8) (<= ULTIMATE.start_main_~MAX~6 27) (<= 27 ULTIMATE.start_main_~MAX~6))} is VALID [2019-01-31 15:02:42,743 INFO L273 TraceCheckUtils]: 37: Hoare triple {18820#(and (= ULTIMATE.start_main_~j~6 8) (<= ULTIMATE.start_main_~MAX~6 27) (<= 27 ULTIMATE.start_main_~MAX~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {18824#(and (= ULTIMATE.start_main_~j~6 9) (<= ULTIMATE.start_main_~MAX~6 27) (<= 27 ULTIMATE.start_main_~MAX~6))} is VALID [2019-01-31 15:02:42,744 INFO L273 TraceCheckUtils]: 38: Hoare triple {18824#(and (= ULTIMATE.start_main_~j~6 9) (<= ULTIMATE.start_main_~MAX~6 27) (<= 27 ULTIMATE.start_main_~MAX~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {18828#(and (= ULTIMATE.start_main_~j~6 10) (<= ULTIMATE.start_main_~MAX~6 27) (<= 27 ULTIMATE.start_main_~MAX~6))} is VALID [2019-01-31 15:02:42,745 INFO L273 TraceCheckUtils]: 39: Hoare triple {18828#(and (= ULTIMATE.start_main_~j~6 10) (<= ULTIMATE.start_main_~MAX~6 27) (<= 27 ULTIMATE.start_main_~MAX~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {18832#(and (<= ULTIMATE.start_main_~MAX~6 27) (<= 27 ULTIMATE.start_main_~MAX~6) (= ULTIMATE.start_main_~j~6 11))} is VALID [2019-01-31 15:02:42,746 INFO L273 TraceCheckUtils]: 40: Hoare triple {18832#(and (<= ULTIMATE.start_main_~MAX~6 27) (<= 27 ULTIMATE.start_main_~MAX~6) (= ULTIMATE.start_main_~j~6 11))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {18836#(and (= ULTIMATE.start_main_~j~6 12) (<= ULTIMATE.start_main_~MAX~6 27) (<= 27 ULTIMATE.start_main_~MAX~6))} is VALID [2019-01-31 15:02:42,746 INFO L273 TraceCheckUtils]: 41: Hoare triple {18836#(and (= ULTIMATE.start_main_~j~6 12) (<= ULTIMATE.start_main_~MAX~6 27) (<= 27 ULTIMATE.start_main_~MAX~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {18840#(and (= ULTIMATE.start_main_~j~6 13) (<= ULTIMATE.start_main_~MAX~6 27) (<= 27 ULTIMATE.start_main_~MAX~6))} is VALID [2019-01-31 15:02:42,747 INFO L273 TraceCheckUtils]: 42: Hoare triple {18840#(and (= ULTIMATE.start_main_~j~6 13) (<= ULTIMATE.start_main_~MAX~6 27) (<= 27 ULTIMATE.start_main_~MAX~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {18844#(and (<= ULTIMATE.start_main_~MAX~6 27) (= ULTIMATE.start_main_~j~6 14) (<= 27 ULTIMATE.start_main_~MAX~6))} is VALID [2019-01-31 15:02:42,748 INFO L273 TraceCheckUtils]: 43: Hoare triple {18844#(and (<= ULTIMATE.start_main_~MAX~6 27) (= ULTIMATE.start_main_~j~6 14) (<= 27 ULTIMATE.start_main_~MAX~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {18848#(and (<= ULTIMATE.start_main_~MAX~6 27) (<= 27 ULTIMATE.start_main_~MAX~6) (= ULTIMATE.start_main_~j~6 15))} is VALID [2019-01-31 15:02:42,749 INFO L273 TraceCheckUtils]: 44: Hoare triple {18848#(and (<= ULTIMATE.start_main_~MAX~6 27) (<= 27 ULTIMATE.start_main_~MAX~6) (= ULTIMATE.start_main_~j~6 15))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {18852#(and (<= ULTIMATE.start_main_~MAX~6 27) (= ULTIMATE.start_main_~j~6 16) (<= 27 ULTIMATE.start_main_~MAX~6))} is VALID [2019-01-31 15:02:42,750 INFO L273 TraceCheckUtils]: 45: Hoare triple {18852#(and (<= ULTIMATE.start_main_~MAX~6 27) (= ULTIMATE.start_main_~j~6 16) (<= 27 ULTIMATE.start_main_~MAX~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {18856#(and (= ULTIMATE.start_main_~j~6 17) (<= ULTIMATE.start_main_~MAX~6 27) (<= 27 ULTIMATE.start_main_~MAX~6))} is VALID [2019-01-31 15:02:42,751 INFO L273 TraceCheckUtils]: 46: Hoare triple {18856#(and (= ULTIMATE.start_main_~j~6 17) (<= ULTIMATE.start_main_~MAX~6 27) (<= 27 ULTIMATE.start_main_~MAX~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {18860#(and (= ULTIMATE.start_main_~j~6 18) (<= ULTIMATE.start_main_~MAX~6 27) (<= 27 ULTIMATE.start_main_~MAX~6))} is VALID [2019-01-31 15:02:42,752 INFO L273 TraceCheckUtils]: 47: Hoare triple {18860#(and (= ULTIMATE.start_main_~j~6 18) (<= ULTIMATE.start_main_~MAX~6 27) (<= 27 ULTIMATE.start_main_~MAX~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {18864#(and (= ULTIMATE.start_main_~j~6 19) (<= ULTIMATE.start_main_~MAX~6 27) (<= 27 ULTIMATE.start_main_~MAX~6))} is VALID [2019-01-31 15:02:42,752 INFO L273 TraceCheckUtils]: 48: Hoare triple {18864#(and (= ULTIMATE.start_main_~j~6 19) (<= ULTIMATE.start_main_~MAX~6 27) (<= 27 ULTIMATE.start_main_~MAX~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {18868#(and (= ULTIMATE.start_main_~j~6 20) (<= ULTIMATE.start_main_~MAX~6 27) (<= 27 ULTIMATE.start_main_~MAX~6))} is VALID [2019-01-31 15:02:42,753 INFO L273 TraceCheckUtils]: 49: Hoare triple {18868#(and (= ULTIMATE.start_main_~j~6 20) (<= ULTIMATE.start_main_~MAX~6 27) (<= 27 ULTIMATE.start_main_~MAX~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {18872#(and (= ULTIMATE.start_main_~j~6 21) (<= ULTIMATE.start_main_~MAX~6 27) (<= 27 ULTIMATE.start_main_~MAX~6))} is VALID [2019-01-31 15:02:42,754 INFO L273 TraceCheckUtils]: 50: Hoare triple {18872#(and (= ULTIMATE.start_main_~j~6 21) (<= ULTIMATE.start_main_~MAX~6 27) (<= 27 ULTIMATE.start_main_~MAX~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {18876#(and (<= ULTIMATE.start_main_~MAX~6 27) (<= 27 ULTIMATE.start_main_~MAX~6) (= ULTIMATE.start_main_~j~6 22))} is VALID [2019-01-31 15:02:42,755 INFO L273 TraceCheckUtils]: 51: Hoare triple {18876#(and (<= ULTIMATE.start_main_~MAX~6 27) (<= 27 ULTIMATE.start_main_~MAX~6) (= ULTIMATE.start_main_~j~6 22))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {18880#(and (<= ULTIMATE.start_main_~MAX~6 27) (<= 27 ULTIMATE.start_main_~MAX~6) (= ULTIMATE.start_main_~j~6 23))} is VALID [2019-01-31 15:02:42,756 INFO L273 TraceCheckUtils]: 52: Hoare triple {18880#(and (<= ULTIMATE.start_main_~MAX~6 27) (<= 27 ULTIMATE.start_main_~MAX~6) (= ULTIMATE.start_main_~j~6 23))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {18884#(and (= ULTIMATE.start_main_~j~6 24) (<= ULTIMATE.start_main_~MAX~6 27) (<= 27 ULTIMATE.start_main_~MAX~6))} is VALID [2019-01-31 15:02:42,756 INFO L273 TraceCheckUtils]: 53: Hoare triple {18884#(and (= ULTIMATE.start_main_~j~6 24) (<= ULTIMATE.start_main_~MAX~6 27) (<= 27 ULTIMATE.start_main_~MAX~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {18888#(and (= ULTIMATE.start_main_~j~6 25) (<= ULTIMATE.start_main_~MAX~6 27) (<= 27 ULTIMATE.start_main_~MAX~6))} is VALID [2019-01-31 15:02:42,757 INFO L273 TraceCheckUtils]: 54: Hoare triple {18888#(and (= ULTIMATE.start_main_~j~6 25) (<= ULTIMATE.start_main_~MAX~6 27) (<= 27 ULTIMATE.start_main_~MAX~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {18892#(and (= ULTIMATE.start_main_~j~6 26) (<= ULTIMATE.start_main_~MAX~6 27) (<= 27 ULTIMATE.start_main_~MAX~6))} is VALID [2019-01-31 15:02:42,758 INFO L273 TraceCheckUtils]: 55: Hoare triple {18892#(and (= ULTIMATE.start_main_~j~6 26) (<= ULTIMATE.start_main_~MAX~6 27) (<= 27 ULTIMATE.start_main_~MAX~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {18896#(and (= (select ULTIMATE.start_main_~str2~6 26) (select ULTIMATE.start_main_~str1~6 0)) (<= ULTIMATE.start_main_~MAX~6 27) (<= 27 ULTIMATE.start_main_~MAX~6))} is VALID [2019-01-31 15:02:42,759 INFO L273 TraceCheckUtils]: 56: Hoare triple {18896#(and (= (select ULTIMATE.start_main_~str2~6 26) (select ULTIMATE.start_main_~str1~6 0)) (<= ULTIMATE.start_main_~MAX~6 27) (<= 27 ULTIMATE.start_main_~MAX~6))} assume !(main_~i~6 >= 0);main_~j~6 := main_~MAX~6 - 1;main_~i~6 := 0;assume !!(main_~i~6 < main_~MAX~6);__VERIFIER_assert_#in~cond := (if main_~str1~6[main_~i~6] == main_~str2~6[main_~j~6] then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond;assume __VERIFIER_assert_~cond == 0;assume !false; {18642#false} is VALID [2019-01-31 15:02:42,760 INFO L273 TraceCheckUtils]: 57: Hoare triple {18642#false} assume !false; {18642#false} is VALID [2019-01-31 15:02:42,766 INFO L134 CoverageAnalysis]: Checked inductivity of 756 backedges. 0 proven. 756 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-31 15:02:42,766 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2019-01-31 15:02:42,795 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 5 [2019-01-31 15:02:42,797 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-01-31 15:02:42,801 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-31 15:02:42,801 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:14, output treesize:5 [2019-01-31 15:02:42,803 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-01-31 15:02:42,803 WARN L398 uantifierElimination]: Input elimination task: ∀ [ULTIMATE.start_main_~str2~6, ULTIMATE.start_main_~str1~6]. (let ((.cse0 (select ULTIMATE.start_main_~str1~6 0))) (= .cse0 (select (store ULTIMATE.start_main_~str2~6 ULTIMATE.start_main_~j~6 .cse0) (+ ULTIMATE.start_main_~MAX~6 (- 1))))) [2019-01-31 15:02:42,803 WARN L399 uantifierElimination]: ElimStorePlain result: ∀ []. (= (+ ULTIMATE.start_main_~j~6 1) ULTIMATE.start_main_~MAX~6) [2019-01-31 15:02:43,678 INFO L273 TraceCheckUtils]: 57: Hoare triple {18642#false} assume !false; {18642#false} is VALID [2019-01-31 15:02:43,680 INFO L273 TraceCheckUtils]: 56: Hoare triple {18698#(= (select ULTIMATE.start_main_~str1~6 0) (select ULTIMATE.start_main_~str2~6 (+ ULTIMATE.start_main_~MAX~6 (- 1))))} assume !(main_~i~6 >= 0);main_~j~6 := main_~MAX~6 - 1;main_~i~6 := 0;assume !!(main_~i~6 < main_~MAX~6);__VERIFIER_assert_#in~cond := (if main_~str1~6[main_~i~6] == main_~str2~6[main_~j~6] then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond;assume __VERIFIER_assert_~cond == 0;assume !false; {18642#false} is VALID [2019-01-31 15:02:43,681 INFO L273 TraceCheckUtils]: 55: Hoare triple {18697#(= (+ ULTIMATE.start_main_~j~6 1) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {18698#(= (select ULTIMATE.start_main_~str1~6 0) (select ULTIMATE.start_main_~str2~6 (+ ULTIMATE.start_main_~MAX~6 (- 1))))} is VALID [2019-01-31 15:02:43,682 INFO L273 TraceCheckUtils]: 54: Hoare triple {18696#(= (+ ULTIMATE.start_main_~j~6 2) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {18697#(= (+ ULTIMATE.start_main_~j~6 1) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:02:43,683 INFO L273 TraceCheckUtils]: 53: Hoare triple {18695#(= (+ ULTIMATE.start_main_~j~6 3) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {18696#(= (+ ULTIMATE.start_main_~j~6 2) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:02:43,684 INFO L273 TraceCheckUtils]: 52: Hoare triple {18694#(= (+ ULTIMATE.start_main_~j~6 4) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {18695#(= (+ ULTIMATE.start_main_~j~6 3) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:02:43,685 INFO L273 TraceCheckUtils]: 51: Hoare triple {18693#(= (+ ULTIMATE.start_main_~j~6 5) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {18694#(= (+ ULTIMATE.start_main_~j~6 4) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:02:43,686 INFO L273 TraceCheckUtils]: 50: Hoare triple {18692#(= (+ ULTIMATE.start_main_~j~6 6) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {18693#(= (+ ULTIMATE.start_main_~j~6 5) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:02:43,686 INFO L273 TraceCheckUtils]: 49: Hoare triple {18691#(= (+ ULTIMATE.start_main_~j~6 7) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {18692#(= (+ ULTIMATE.start_main_~j~6 6) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:02:43,687 INFO L273 TraceCheckUtils]: 48: Hoare triple {18690#(= (+ ULTIMATE.start_main_~j~6 8) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {18691#(= (+ ULTIMATE.start_main_~j~6 7) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:02:43,688 INFO L273 TraceCheckUtils]: 47: Hoare triple {18689#(= (+ ULTIMATE.start_main_~j~6 9) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {18690#(= (+ ULTIMATE.start_main_~j~6 8) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:02:43,689 INFO L273 TraceCheckUtils]: 46: Hoare triple {18688#(= (+ ULTIMATE.start_main_~j~6 10) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {18689#(= (+ ULTIMATE.start_main_~j~6 9) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:02:43,690 INFO L273 TraceCheckUtils]: 45: Hoare triple {18687#(= (+ ULTIMATE.start_main_~j~6 11) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {18688#(= (+ ULTIMATE.start_main_~j~6 10) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:02:43,691 INFO L273 TraceCheckUtils]: 44: Hoare triple {18686#(= (+ ULTIMATE.start_main_~j~6 12) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {18687#(= (+ ULTIMATE.start_main_~j~6 11) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:02:43,692 INFO L273 TraceCheckUtils]: 43: Hoare triple {18685#(= (+ ULTIMATE.start_main_~j~6 13) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {18686#(= (+ ULTIMATE.start_main_~j~6 12) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:02:43,693 INFO L273 TraceCheckUtils]: 42: Hoare triple {18684#(= (+ ULTIMATE.start_main_~j~6 14) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {18685#(= (+ ULTIMATE.start_main_~j~6 13) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:02:43,694 INFO L273 TraceCheckUtils]: 41: Hoare triple {18683#(= (+ ULTIMATE.start_main_~j~6 15) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {18684#(= (+ ULTIMATE.start_main_~j~6 14) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:02:43,695 INFO L273 TraceCheckUtils]: 40: Hoare triple {18682#(= (+ ULTIMATE.start_main_~j~6 16) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {18683#(= (+ ULTIMATE.start_main_~j~6 15) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:02:43,696 INFO L273 TraceCheckUtils]: 39: Hoare triple {18681#(= (+ ULTIMATE.start_main_~j~6 17) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {18682#(= (+ ULTIMATE.start_main_~j~6 16) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:02:43,697 INFO L273 TraceCheckUtils]: 38: Hoare triple {18680#(= (+ ULTIMATE.start_main_~j~6 18) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {18681#(= (+ ULTIMATE.start_main_~j~6 17) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:02:43,698 INFO L273 TraceCheckUtils]: 37: Hoare triple {18679#(= (+ ULTIMATE.start_main_~j~6 19) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {18680#(= (+ ULTIMATE.start_main_~j~6 18) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:02:43,699 INFO L273 TraceCheckUtils]: 36: Hoare triple {18678#(= (+ ULTIMATE.start_main_~j~6 20) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {18679#(= (+ ULTIMATE.start_main_~j~6 19) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:02:43,700 INFO L273 TraceCheckUtils]: 35: Hoare triple {18677#(= (+ ULTIMATE.start_main_~j~6 21) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {18678#(= (+ ULTIMATE.start_main_~j~6 20) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:02:43,701 INFO L273 TraceCheckUtils]: 34: Hoare triple {18676#(= (+ ULTIMATE.start_main_~j~6 22) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {18677#(= (+ ULTIMATE.start_main_~j~6 21) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:02:43,702 INFO L273 TraceCheckUtils]: 33: Hoare triple {18675#(= (+ ULTIMATE.start_main_~j~6 23) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {18676#(= (+ ULTIMATE.start_main_~j~6 22) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:02:43,703 INFO L273 TraceCheckUtils]: 32: Hoare triple {18674#(= (+ ULTIMATE.start_main_~j~6 24) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {18675#(= (+ ULTIMATE.start_main_~j~6 23) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:02:43,704 INFO L273 TraceCheckUtils]: 31: Hoare triple {18673#(= (+ ULTIMATE.start_main_~j~6 25) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {18674#(= (+ ULTIMATE.start_main_~j~6 24) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:02:43,705 INFO L273 TraceCheckUtils]: 30: Hoare triple {18672#(= (+ ULTIMATE.start_main_~j~6 26) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {18673#(= (+ ULTIMATE.start_main_~j~6 25) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:02:43,705 INFO L273 TraceCheckUtils]: 29: Hoare triple {18671#(= (+ ULTIMATE.start_main_~j~6 27) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {18672#(= (+ ULTIMATE.start_main_~j~6 26) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:02:43,706 INFO L273 TraceCheckUtils]: 28: Hoare triple {18670#(or (<= (+ ULTIMATE.start_main_~i~6 1) ULTIMATE.start_main_~MAX~6) (= 27 ULTIMATE.start_main_~MAX~6))} assume !(main_~i~6 < main_~MAX~6);main_~str1~6 := main_~str1~6[main_~MAX~6 - 1 := 0];main_~j~6 := 0;main_~i~6 := main_~MAX~6 - 1; {18671#(= (+ ULTIMATE.start_main_~j~6 27) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:02:43,707 INFO L273 TraceCheckUtils]: 27: Hoare triple {18780#(and (<= 26 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 26))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {18670#(or (<= (+ ULTIMATE.start_main_~i~6 1) ULTIMATE.start_main_~MAX~6) (= 27 ULTIMATE.start_main_~MAX~6))} is VALID [2019-01-31 15:02:43,708 INFO L273 TraceCheckUtils]: 26: Hoare triple {18668#(and (<= ULTIMATE.start_main_~i~6 25) (<= 25 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {18780#(and (<= 26 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 26))} is VALID [2019-01-31 15:02:43,709 INFO L273 TraceCheckUtils]: 25: Hoare triple {18667#(and (<= ULTIMATE.start_main_~i~6 24) (<= 24 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {18668#(and (<= ULTIMATE.start_main_~i~6 25) (<= 25 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:02:43,710 INFO L273 TraceCheckUtils]: 24: Hoare triple {18666#(and (<= 23 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 23))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {18667#(and (<= ULTIMATE.start_main_~i~6 24) (<= 24 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:02:43,711 INFO L273 TraceCheckUtils]: 23: Hoare triple {18665#(and (<= 22 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 22))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {18666#(and (<= 23 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 23))} is VALID [2019-01-31 15:02:43,712 INFO L273 TraceCheckUtils]: 22: Hoare triple {18664#(and (<= ULTIMATE.start_main_~i~6 21) (<= 21 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {18665#(and (<= 22 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 22))} is VALID [2019-01-31 15:02:43,713 INFO L273 TraceCheckUtils]: 21: Hoare triple {18663#(and (<= ULTIMATE.start_main_~i~6 20) (<= 20 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {18664#(and (<= ULTIMATE.start_main_~i~6 21) (<= 21 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:02:43,714 INFO L273 TraceCheckUtils]: 20: Hoare triple {18662#(and (<= ULTIMATE.start_main_~i~6 19) (<= 19 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {18663#(and (<= ULTIMATE.start_main_~i~6 20) (<= 20 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:02:43,715 INFO L273 TraceCheckUtils]: 19: Hoare triple {18661#(and (<= ULTIMATE.start_main_~i~6 18) (<= 18 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {18662#(and (<= ULTIMATE.start_main_~i~6 19) (<= 19 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:02:43,716 INFO L273 TraceCheckUtils]: 18: Hoare triple {18660#(and (<= ULTIMATE.start_main_~i~6 17) (<= 17 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {18661#(and (<= ULTIMATE.start_main_~i~6 18) (<= 18 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:02:43,717 INFO L273 TraceCheckUtils]: 17: Hoare triple {18659#(and (<= 16 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 16))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {18660#(and (<= ULTIMATE.start_main_~i~6 17) (<= 17 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:02:43,718 INFO L273 TraceCheckUtils]: 16: Hoare triple {18658#(and (<= 15 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 15))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {18659#(and (<= 16 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 16))} is VALID [2019-01-31 15:02:43,719 INFO L273 TraceCheckUtils]: 15: Hoare triple {18657#(and (<= ULTIMATE.start_main_~i~6 14) (<= 14 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {18658#(and (<= 15 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 15))} is VALID [2019-01-31 15:02:43,720 INFO L273 TraceCheckUtils]: 14: Hoare triple {18656#(and (<= ULTIMATE.start_main_~i~6 13) (<= 13 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {18657#(and (<= ULTIMATE.start_main_~i~6 14) (<= 14 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:02:43,721 INFO L273 TraceCheckUtils]: 13: Hoare triple {18655#(and (<= ULTIMATE.start_main_~i~6 12) (<= 12 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {18656#(and (<= ULTIMATE.start_main_~i~6 13) (<= 13 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:02:43,721 INFO L273 TraceCheckUtils]: 12: Hoare triple {18654#(and (<= 11 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 11))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {18655#(and (<= ULTIMATE.start_main_~i~6 12) (<= 12 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:02:43,722 INFO L273 TraceCheckUtils]: 11: Hoare triple {18653#(and (<= ULTIMATE.start_main_~i~6 10) (<= 10 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {18654#(and (<= 11 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 11))} is VALID [2019-01-31 15:02:43,723 INFO L273 TraceCheckUtils]: 10: Hoare triple {18652#(and (<= ULTIMATE.start_main_~i~6 9) (<= 9 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {18653#(and (<= ULTIMATE.start_main_~i~6 10) (<= 10 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:02:43,724 INFO L273 TraceCheckUtils]: 9: Hoare triple {18651#(and (<= ULTIMATE.start_main_~i~6 8) (<= 8 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {18652#(and (<= ULTIMATE.start_main_~i~6 9) (<= 9 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:02:43,725 INFO L273 TraceCheckUtils]: 8: Hoare triple {18650#(and (<= 7 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 7))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {18651#(and (<= ULTIMATE.start_main_~i~6 8) (<= 8 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:02:43,726 INFO L273 TraceCheckUtils]: 7: Hoare triple {18649#(and (<= ULTIMATE.start_main_~i~6 6) (<= 6 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {18650#(and (<= 7 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 7))} is VALID [2019-01-31 15:02:43,727 INFO L273 TraceCheckUtils]: 6: Hoare triple {18648#(and (<= 5 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 5))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {18649#(and (<= ULTIMATE.start_main_~i~6 6) (<= 6 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:02:43,728 INFO L273 TraceCheckUtils]: 5: Hoare triple {18647#(and (<= ULTIMATE.start_main_~i~6 4) (<= 4 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {18648#(and (<= 5 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 5))} is VALID [2019-01-31 15:02:43,729 INFO L273 TraceCheckUtils]: 4: Hoare triple {18646#(and (<= 3 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 3))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {18647#(and (<= ULTIMATE.start_main_~i~6 4) (<= 4 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:02:43,730 INFO L273 TraceCheckUtils]: 3: Hoare triple {18645#(and (<= ULTIMATE.start_main_~i~6 2) (<= 2 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {18646#(and (<= 3 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 3))} is VALID [2019-01-31 15:02:43,731 INFO L273 TraceCheckUtils]: 2: Hoare triple {18644#(and (<= ULTIMATE.start_main_~i~6 1) (<= 1 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {18645#(and (<= ULTIMATE.start_main_~i~6 2) (<= 2 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:02:43,732 INFO L273 TraceCheckUtils]: 1: Hoare triple {18643#(and (<= ULTIMATE.start_main_~i~6 0) (<= 0 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {18644#(and (<= ULTIMATE.start_main_~i~6 1) (<= 1 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:02:43,733 INFO L273 TraceCheckUtils]: 0: Hoare triple {18641#true} havoc main_#res;havoc main_#t~nondet0, main_#t~nondet2, main_#t~post1, main_#t~post4, main_#t~post3, main_#t~post6, main_#t~post5, main_~MAX~6, main_~str1~6, main_~str2~6, main_~cont~6, main_~i~6, main_~j~6;main_~MAX~6 := (if main_#t~nondet0 % 4294967296 % 4294967296 <= 2147483647 then main_#t~nondet0 % 4294967296 % 4294967296 else main_#t~nondet0 % 4294967296 % 4294967296 - 4294967296);havoc main_#t~nondet0;havoc main_~str1~6;havoc main_~str2~6;havoc main_~cont~6;havoc main_~i~6;havoc main_~j~6;main_~cont~6 := 0;main_~i~6 := 0; {18643#(and (<= ULTIMATE.start_main_~i~6 0) (<= 0 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:02:43,739 INFO L134 CoverageAnalysis]: Checked inductivity of 756 backedges. 0 proven. 756 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-31 15:02:43,758 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-01-31 15:02:43,758 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [57, 57, 57] total 87 [2019-01-31 15:02:43,758 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-01-31 15:02:43,758 INFO L78 Accepts]: Start accepts. Automaton has 88 states. Word has length 58 [2019-01-31 15:02:43,759 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-01-31 15:02:43,759 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 88 states. [2019-01-31 15:02:43,851 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 89 edges. 89 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-01-31 15:02:43,851 INFO L459 AbstractCegarLoop]: Interpolant automaton has 88 states [2019-01-31 15:02:43,851 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 88 interpolants. [2019-01-31 15:02:43,852 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=259, Invalid=7397, Unknown=0, NotChecked=0, Total=7656 [2019-01-31 15:02:43,852 INFO L87 Difference]: Start difference. First operand 59 states and 60 transitions. Second operand 88 states. [2019-01-31 15:02:58,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 15:02:58,320 INFO L93 Difference]: Finished difference Result 90 states and 92 transitions. [2019-01-31 15:02:58,320 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2019-01-31 15:02:58,320 INFO L78 Accepts]: Start accepts. Automaton has 88 states. Word has length 58 [2019-01-31 15:02:58,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-31 15:02:58,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 88 states. [2019-01-31 15:02:58,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 66 transitions. [2019-01-31 15:02:58,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 88 states. [2019-01-31 15:02:58,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 66 transitions. [2019-01-31 15:02:58,322 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 61 states and 66 transitions. [2019-01-31 15:02:58,390 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 66 edges. 66 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-01-31 15:02:58,391 INFO L225 Difference]: With dead ends: 90 [2019-01-31 15:02:58,392 INFO L226 Difference]: Without dead ends: 60 [2019-01-31 15:02:58,393 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 201 GetRequests, 63 SyntacticMatches, 22 SemanticMatches, 116 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2281 ImplicationChecksByTransitivity, 6.3s TimeCoverageRelationStatistics Valid=548, Invalid=13258, Unknown=0, NotChecked=0, Total=13806 [2019-01-31 15:02:58,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2019-01-31 15:02:59,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60. [2019-01-31 15:02:59,660 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-01-31 15:02:59,660 INFO L82 GeneralOperation]: Start isEquivalent. First operand 60 states. Second operand 60 states. [2019-01-31 15:02:59,660 INFO L74 IsIncluded]: Start isIncluded. First operand 60 states. Second operand 60 states. [2019-01-31 15:02:59,660 INFO L87 Difference]: Start difference. First operand 60 states. Second operand 60 states. [2019-01-31 15:02:59,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 15:02:59,661 INFO L93 Difference]: Finished difference Result 60 states and 61 transitions. [2019-01-31 15:02:59,661 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 61 transitions. [2019-01-31 15:02:59,662 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-31 15:02:59,662 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-01-31 15:02:59,662 INFO L74 IsIncluded]: Start isIncluded. First operand 60 states. Second operand 60 states. [2019-01-31 15:02:59,662 INFO L87 Difference]: Start difference. First operand 60 states. Second operand 60 states. [2019-01-31 15:02:59,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 15:02:59,663 INFO L93 Difference]: Finished difference Result 60 states and 61 transitions. [2019-01-31 15:02:59,663 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 61 transitions. [2019-01-31 15:02:59,663 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-31 15:02:59,664 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-01-31 15:02:59,664 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-01-31 15:02:59,664 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-01-31 15:02:59,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60 states. [2019-01-31 15:02:59,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 61 transitions. [2019-01-31 15:02:59,665 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 61 transitions. Word has length 58 [2019-01-31 15:02:59,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-31 15:02:59,665 INFO L480 AbstractCegarLoop]: Abstraction has 60 states and 61 transitions. [2019-01-31 15:02:59,665 INFO L481 AbstractCegarLoop]: Interpolant automaton has 88 states. [2019-01-31 15:02:59,665 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 61 transitions. [2019-01-31 15:02:59,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2019-01-31 15:02:59,665 INFO L394 BasicCegarLoop]: Found error trace [2019-01-31 15:02:59,665 INFO L402 BasicCegarLoop]: trace histogram [28, 27, 1, 1, 1, 1] [2019-01-31 15:02:59,665 INFO L423 AbstractCegarLoop]: === Iteration 43 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2019-01-31 15:02:59,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-31 15:02:59,666 INFO L82 PathProgramCache]: Analyzing trace with hash -998989556, now seen corresponding path program 41 times [2019-01-31 15:02:59,666 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-01-31 15:02:59,666 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-31 15:02:59,666 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-31 15:02:59,667 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-31 15:02:59,667 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-01-31 15:02:59,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-31 15:03:01,535 INFO L273 TraceCheckUtils]: 0: Hoare triple {19548#true} havoc main_#res;havoc main_#t~nondet0, main_#t~nondet2, main_#t~post1, main_#t~post4, main_#t~post3, main_#t~post6, main_#t~post5, main_~MAX~6, main_~str1~6, main_~str2~6, main_~cont~6, main_~i~6, main_~j~6;main_~MAX~6 := (if main_#t~nondet0 % 4294967296 % 4294967296 <= 2147483647 then main_#t~nondet0 % 4294967296 % 4294967296 else main_#t~nondet0 % 4294967296 % 4294967296 - 4294967296);havoc main_#t~nondet0;havoc main_~str1~6;havoc main_~str2~6;havoc main_~cont~6;havoc main_~i~6;havoc main_~j~6;main_~cont~6 := 0;main_~i~6 := 0; {19550#(<= 0 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:03:01,536 INFO L273 TraceCheckUtils]: 1: Hoare triple {19550#(<= 0 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {19551#(<= 1 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:03:01,537 INFO L273 TraceCheckUtils]: 2: Hoare triple {19551#(<= 1 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {19552#(<= 2 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:03:01,538 INFO L273 TraceCheckUtils]: 3: Hoare triple {19552#(<= 2 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {19553#(<= 3 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:03:01,538 INFO L273 TraceCheckUtils]: 4: Hoare triple {19553#(<= 3 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {19554#(<= 4 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:03:01,539 INFO L273 TraceCheckUtils]: 5: Hoare triple {19554#(<= 4 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {19555#(<= 5 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:03:01,540 INFO L273 TraceCheckUtils]: 6: Hoare triple {19555#(<= 5 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {19556#(<= 6 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:03:01,541 INFO L273 TraceCheckUtils]: 7: Hoare triple {19556#(<= 6 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {19557#(<= 7 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:03:01,542 INFO L273 TraceCheckUtils]: 8: Hoare triple {19557#(<= 7 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {19558#(<= 8 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:03:01,543 INFO L273 TraceCheckUtils]: 9: Hoare triple {19558#(<= 8 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {19559#(<= 9 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:03:01,544 INFO L273 TraceCheckUtils]: 10: Hoare triple {19559#(<= 9 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {19560#(<= 10 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:03:01,544 INFO L273 TraceCheckUtils]: 11: Hoare triple {19560#(<= 10 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {19561#(<= 11 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:03:01,545 INFO L273 TraceCheckUtils]: 12: Hoare triple {19561#(<= 11 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {19562#(<= 12 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:03:01,546 INFO L273 TraceCheckUtils]: 13: Hoare triple {19562#(<= 12 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {19563#(<= 13 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:03:01,547 INFO L273 TraceCheckUtils]: 14: Hoare triple {19563#(<= 13 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {19564#(<= 14 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:03:01,548 INFO L273 TraceCheckUtils]: 15: Hoare triple {19564#(<= 14 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {19565#(<= 15 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:03:01,549 INFO L273 TraceCheckUtils]: 16: Hoare triple {19565#(<= 15 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {19566#(<= 16 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:03:01,550 INFO L273 TraceCheckUtils]: 17: Hoare triple {19566#(<= 16 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {19567#(<= 17 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:03:01,550 INFO L273 TraceCheckUtils]: 18: Hoare triple {19567#(<= 17 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {19568#(<= 18 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:03:01,551 INFO L273 TraceCheckUtils]: 19: Hoare triple {19568#(<= 18 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {19569#(<= 19 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:03:01,552 INFO L273 TraceCheckUtils]: 20: Hoare triple {19569#(<= 19 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {19570#(<= 20 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:03:01,553 INFO L273 TraceCheckUtils]: 21: Hoare triple {19570#(<= 20 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {19571#(<= 21 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:03:01,554 INFO L273 TraceCheckUtils]: 22: Hoare triple {19571#(<= 21 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {19572#(<= 22 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:03:01,555 INFO L273 TraceCheckUtils]: 23: Hoare triple {19572#(<= 22 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {19573#(<= 23 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:03:01,556 INFO L273 TraceCheckUtils]: 24: Hoare triple {19573#(<= 23 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {19574#(<= 24 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:03:01,557 INFO L273 TraceCheckUtils]: 25: Hoare triple {19574#(<= 24 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {19575#(<= 25 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:03:01,557 INFO L273 TraceCheckUtils]: 26: Hoare triple {19575#(<= 25 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {19576#(<= 26 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:03:01,558 INFO L273 TraceCheckUtils]: 27: Hoare triple {19576#(<= 26 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {19577#(<= 27 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:03:01,559 INFO L273 TraceCheckUtils]: 28: Hoare triple {19577#(<= 27 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {19578#(<= 28 ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:03:01,560 INFO L273 TraceCheckUtils]: 29: Hoare triple {19578#(<= 28 ULTIMATE.start_main_~MAX~6)} assume !(main_~i~6 < main_~MAX~6);main_~str1~6 := main_~str1~6[main_~MAX~6 - 1 := 0];main_~j~6 := 0;main_~i~6 := main_~MAX~6 - 1; {19577#(<= 27 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:03:01,561 INFO L273 TraceCheckUtils]: 30: Hoare triple {19577#(<= 27 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {19576#(<= 26 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:03:01,562 INFO L273 TraceCheckUtils]: 31: Hoare triple {19576#(<= 26 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {19575#(<= 25 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:03:01,563 INFO L273 TraceCheckUtils]: 32: Hoare triple {19575#(<= 25 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {19574#(<= 24 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:03:01,563 INFO L273 TraceCheckUtils]: 33: Hoare triple {19574#(<= 24 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {19573#(<= 23 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:03:01,564 INFO L273 TraceCheckUtils]: 34: Hoare triple {19573#(<= 23 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {19572#(<= 22 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:03:01,565 INFO L273 TraceCheckUtils]: 35: Hoare triple {19572#(<= 22 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {19571#(<= 21 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:03:01,566 INFO L273 TraceCheckUtils]: 36: Hoare triple {19571#(<= 21 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {19570#(<= 20 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:03:01,567 INFO L273 TraceCheckUtils]: 37: Hoare triple {19570#(<= 20 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {19569#(<= 19 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:03:01,568 INFO L273 TraceCheckUtils]: 38: Hoare triple {19569#(<= 19 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {19568#(<= 18 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:03:01,569 INFO L273 TraceCheckUtils]: 39: Hoare triple {19568#(<= 18 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {19567#(<= 17 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:03:01,569 INFO L273 TraceCheckUtils]: 40: Hoare triple {19567#(<= 17 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {19566#(<= 16 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:03:01,570 INFO L273 TraceCheckUtils]: 41: Hoare triple {19566#(<= 16 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {19565#(<= 15 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:03:01,571 INFO L273 TraceCheckUtils]: 42: Hoare triple {19565#(<= 15 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {19564#(<= 14 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:03:01,591 INFO L273 TraceCheckUtils]: 43: Hoare triple {19564#(<= 14 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {19563#(<= 13 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:03:01,592 INFO L273 TraceCheckUtils]: 44: Hoare triple {19563#(<= 13 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {19562#(<= 12 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:03:01,593 INFO L273 TraceCheckUtils]: 45: Hoare triple {19562#(<= 12 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {19561#(<= 11 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:03:01,593 INFO L273 TraceCheckUtils]: 46: Hoare triple {19561#(<= 11 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {19560#(<= 10 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:03:01,594 INFO L273 TraceCheckUtils]: 47: Hoare triple {19560#(<= 10 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {19559#(<= 9 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:03:01,594 INFO L273 TraceCheckUtils]: 48: Hoare triple {19559#(<= 9 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {19558#(<= 8 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:03:01,595 INFO L273 TraceCheckUtils]: 49: Hoare triple {19558#(<= 8 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {19557#(<= 7 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:03:01,596 INFO L273 TraceCheckUtils]: 50: Hoare triple {19557#(<= 7 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {19556#(<= 6 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:03:01,596 INFO L273 TraceCheckUtils]: 51: Hoare triple {19556#(<= 6 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {19555#(<= 5 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:03:01,597 INFO L273 TraceCheckUtils]: 52: Hoare triple {19555#(<= 5 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {19554#(<= 4 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:03:01,598 INFO L273 TraceCheckUtils]: 53: Hoare triple {19554#(<= 4 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {19553#(<= 3 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:03:01,599 INFO L273 TraceCheckUtils]: 54: Hoare triple {19553#(<= 3 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {19552#(<= 2 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:03:01,600 INFO L273 TraceCheckUtils]: 55: Hoare triple {19552#(<= 2 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {19551#(<= 1 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:03:01,601 INFO L273 TraceCheckUtils]: 56: Hoare triple {19551#(<= 1 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {19550#(<= 0 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:03:01,601 INFO L273 TraceCheckUtils]: 57: Hoare triple {19550#(<= 0 ULTIMATE.start_main_~i~6)} assume !(main_~i~6 >= 0);main_~j~6 := main_~MAX~6 - 1;main_~i~6 := 0;assume !!(main_~i~6 < main_~MAX~6);__VERIFIER_assert_#in~cond := (if main_~str1~6[main_~i~6] == main_~str2~6[main_~j~6] then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond;assume __VERIFIER_assert_~cond == 0;assume !false; {19549#false} is VALID [2019-01-31 15:03:01,601 INFO L273 TraceCheckUtils]: 58: Hoare triple {19549#false} assume !false; {19549#false} is VALID [2019-01-31 15:03:01,605 INFO L134 CoverageAnalysis]: Checked inductivity of 784 backedges. 378 proven. 406 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-31 15:03:01,605 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-31 15:03:01,605 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-01-31 15:03:01,605 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-01-31 15:03:01,605 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-01-31 15:03:01,605 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-31 15:03:01,606 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 42 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 42 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-01-31 15:03:01,614 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2019-01-31 15:03:01,614 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST2 (IT: FPandBP) [2019-01-31 15:03:01,746 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 15 check-sat command(s) [2019-01-31 15:03:01,746 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-01-31 15:03:01,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-31 15:03:01,771 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-31 15:03:02,045 INFO L273 TraceCheckUtils]: 0: Hoare triple {19548#true} havoc main_#res;havoc main_#t~nondet0, main_#t~nondet2, main_#t~post1, main_#t~post4, main_#t~post3, main_#t~post6, main_#t~post5, main_~MAX~6, main_~str1~6, main_~str2~6, main_~cont~6, main_~i~6, main_~j~6;main_~MAX~6 := (if main_#t~nondet0 % 4294967296 % 4294967296 <= 2147483647 then main_#t~nondet0 % 4294967296 % 4294967296 else main_#t~nondet0 % 4294967296 % 4294967296 - 4294967296);havoc main_#t~nondet0;havoc main_~str1~6;havoc main_~str2~6;havoc main_~cont~6;havoc main_~i~6;havoc main_~j~6;main_~cont~6 := 0;main_~i~6 := 0; {19550#(<= 0 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:03:02,046 INFO L273 TraceCheckUtils]: 1: Hoare triple {19550#(<= 0 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {19551#(<= 1 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:03:02,047 INFO L273 TraceCheckUtils]: 2: Hoare triple {19551#(<= 1 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {19552#(<= 2 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:03:02,048 INFO L273 TraceCheckUtils]: 3: Hoare triple {19552#(<= 2 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {19553#(<= 3 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:03:02,049 INFO L273 TraceCheckUtils]: 4: Hoare triple {19553#(<= 3 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {19554#(<= 4 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:03:02,050 INFO L273 TraceCheckUtils]: 5: Hoare triple {19554#(<= 4 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {19555#(<= 5 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:03:02,051 INFO L273 TraceCheckUtils]: 6: Hoare triple {19555#(<= 5 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {19556#(<= 6 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:03:02,052 INFO L273 TraceCheckUtils]: 7: Hoare triple {19556#(<= 6 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {19557#(<= 7 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:03:02,053 INFO L273 TraceCheckUtils]: 8: Hoare triple {19557#(<= 7 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {19558#(<= 8 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:03:02,053 INFO L273 TraceCheckUtils]: 9: Hoare triple {19558#(<= 8 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {19559#(<= 9 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:03:02,054 INFO L273 TraceCheckUtils]: 10: Hoare triple {19559#(<= 9 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {19560#(<= 10 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:03:02,055 INFO L273 TraceCheckUtils]: 11: Hoare triple {19560#(<= 10 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {19561#(<= 11 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:03:02,056 INFO L273 TraceCheckUtils]: 12: Hoare triple {19561#(<= 11 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {19562#(<= 12 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:03:02,057 INFO L273 TraceCheckUtils]: 13: Hoare triple {19562#(<= 12 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {19563#(<= 13 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:03:02,058 INFO L273 TraceCheckUtils]: 14: Hoare triple {19563#(<= 13 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {19564#(<= 14 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:03:02,059 INFO L273 TraceCheckUtils]: 15: Hoare triple {19564#(<= 14 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {19565#(<= 15 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:03:02,060 INFO L273 TraceCheckUtils]: 16: Hoare triple {19565#(<= 15 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {19566#(<= 16 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:03:02,060 INFO L273 TraceCheckUtils]: 17: Hoare triple {19566#(<= 16 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {19567#(<= 17 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:03:02,061 INFO L273 TraceCheckUtils]: 18: Hoare triple {19567#(<= 17 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {19568#(<= 18 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:03:02,062 INFO L273 TraceCheckUtils]: 19: Hoare triple {19568#(<= 18 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {19569#(<= 19 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:03:02,063 INFO L273 TraceCheckUtils]: 20: Hoare triple {19569#(<= 19 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {19570#(<= 20 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:03:02,064 INFO L273 TraceCheckUtils]: 21: Hoare triple {19570#(<= 20 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {19571#(<= 21 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:03:02,065 INFO L273 TraceCheckUtils]: 22: Hoare triple {19571#(<= 21 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {19572#(<= 22 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:03:02,066 INFO L273 TraceCheckUtils]: 23: Hoare triple {19572#(<= 22 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {19573#(<= 23 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:03:02,066 INFO L273 TraceCheckUtils]: 24: Hoare triple {19573#(<= 23 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {19574#(<= 24 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:03:02,067 INFO L273 TraceCheckUtils]: 25: Hoare triple {19574#(<= 24 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {19575#(<= 25 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:03:02,068 INFO L273 TraceCheckUtils]: 26: Hoare triple {19575#(<= 25 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {19576#(<= 26 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:03:02,069 INFO L273 TraceCheckUtils]: 27: Hoare triple {19576#(<= 26 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {19577#(<= 27 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:03:02,070 INFO L273 TraceCheckUtils]: 28: Hoare triple {19577#(<= 27 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {19578#(<= 28 ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:03:02,071 INFO L273 TraceCheckUtils]: 29: Hoare triple {19578#(<= 28 ULTIMATE.start_main_~MAX~6)} assume !(main_~i~6 < main_~MAX~6);main_~str1~6 := main_~str1~6[main_~MAX~6 - 1 := 0];main_~j~6 := 0;main_~i~6 := main_~MAX~6 - 1; {19577#(<= 27 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:03:02,072 INFO L273 TraceCheckUtils]: 30: Hoare triple {19577#(<= 27 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {19576#(<= 26 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:03:02,072 INFO L273 TraceCheckUtils]: 31: Hoare triple {19576#(<= 26 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {19575#(<= 25 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:03:02,073 INFO L273 TraceCheckUtils]: 32: Hoare triple {19575#(<= 25 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {19574#(<= 24 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:03:02,074 INFO L273 TraceCheckUtils]: 33: Hoare triple {19574#(<= 24 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {19573#(<= 23 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:03:02,075 INFO L273 TraceCheckUtils]: 34: Hoare triple {19573#(<= 23 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {19572#(<= 22 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:03:02,076 INFO L273 TraceCheckUtils]: 35: Hoare triple {19572#(<= 22 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {19571#(<= 21 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:03:02,077 INFO L273 TraceCheckUtils]: 36: Hoare triple {19571#(<= 21 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {19570#(<= 20 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:03:02,078 INFO L273 TraceCheckUtils]: 37: Hoare triple {19570#(<= 20 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {19569#(<= 19 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:03:02,078 INFO L273 TraceCheckUtils]: 38: Hoare triple {19569#(<= 19 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {19568#(<= 18 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:03:02,079 INFO L273 TraceCheckUtils]: 39: Hoare triple {19568#(<= 18 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {19567#(<= 17 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:03:02,080 INFO L273 TraceCheckUtils]: 40: Hoare triple {19567#(<= 17 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {19566#(<= 16 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:03:02,081 INFO L273 TraceCheckUtils]: 41: Hoare triple {19566#(<= 16 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {19565#(<= 15 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:03:02,082 INFO L273 TraceCheckUtils]: 42: Hoare triple {19565#(<= 15 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {19564#(<= 14 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:03:02,083 INFO L273 TraceCheckUtils]: 43: Hoare triple {19564#(<= 14 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {19563#(<= 13 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:03:02,084 INFO L273 TraceCheckUtils]: 44: Hoare triple {19563#(<= 13 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {19562#(<= 12 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:03:02,084 INFO L273 TraceCheckUtils]: 45: Hoare triple {19562#(<= 12 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {19561#(<= 11 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:03:02,085 INFO L273 TraceCheckUtils]: 46: Hoare triple {19561#(<= 11 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {19560#(<= 10 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:03:02,086 INFO L273 TraceCheckUtils]: 47: Hoare triple {19560#(<= 10 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {19559#(<= 9 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:03:02,087 INFO L273 TraceCheckUtils]: 48: Hoare triple {19559#(<= 9 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {19558#(<= 8 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:03:02,088 INFO L273 TraceCheckUtils]: 49: Hoare triple {19558#(<= 8 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {19557#(<= 7 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:03:02,089 INFO L273 TraceCheckUtils]: 50: Hoare triple {19557#(<= 7 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {19556#(<= 6 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:03:02,090 INFO L273 TraceCheckUtils]: 51: Hoare triple {19556#(<= 6 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {19555#(<= 5 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:03:02,090 INFO L273 TraceCheckUtils]: 52: Hoare triple {19555#(<= 5 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {19554#(<= 4 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:03:02,091 INFO L273 TraceCheckUtils]: 53: Hoare triple {19554#(<= 4 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {19553#(<= 3 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:03:02,092 INFO L273 TraceCheckUtils]: 54: Hoare triple {19553#(<= 3 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {19552#(<= 2 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:03:02,093 INFO L273 TraceCheckUtils]: 55: Hoare triple {19552#(<= 2 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {19551#(<= 1 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:03:02,094 INFO L273 TraceCheckUtils]: 56: Hoare triple {19551#(<= 1 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {19550#(<= 0 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:03:02,094 INFO L273 TraceCheckUtils]: 57: Hoare triple {19550#(<= 0 ULTIMATE.start_main_~i~6)} assume !(main_~i~6 >= 0);main_~j~6 := main_~MAX~6 - 1;main_~i~6 := 0;assume !!(main_~i~6 < main_~MAX~6);__VERIFIER_assert_#in~cond := (if main_~str1~6[main_~i~6] == main_~str2~6[main_~j~6] then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond;assume __VERIFIER_assert_~cond == 0;assume !false; {19549#false} is VALID [2019-01-31 15:03:02,095 INFO L273 TraceCheckUtils]: 58: Hoare triple {19549#false} assume !false; {19549#false} is VALID [2019-01-31 15:03:02,098 INFO L134 CoverageAnalysis]: Checked inductivity of 784 backedges. 378 proven. 406 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-31 15:03:02,098 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2019-01-31 15:03:03,025 INFO L273 TraceCheckUtils]: 58: Hoare triple {19549#false} assume !false; {19549#false} is VALID [2019-01-31 15:03:03,025 INFO L273 TraceCheckUtils]: 57: Hoare triple {19550#(<= 0 ULTIMATE.start_main_~i~6)} assume !(main_~i~6 >= 0);main_~j~6 := main_~MAX~6 - 1;main_~i~6 := 0;assume !!(main_~i~6 < main_~MAX~6);__VERIFIER_assert_#in~cond := (if main_~str1~6[main_~i~6] == main_~str2~6[main_~j~6] then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond;assume __VERIFIER_assert_~cond == 0;assume !false; {19549#false} is VALID [2019-01-31 15:03:03,026 INFO L273 TraceCheckUtils]: 56: Hoare triple {19551#(<= 1 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {19550#(<= 0 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:03:03,026 INFO L273 TraceCheckUtils]: 55: Hoare triple {19552#(<= 2 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {19551#(<= 1 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:03:03,027 INFO L273 TraceCheckUtils]: 54: Hoare triple {19553#(<= 3 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {19552#(<= 2 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:03:03,028 INFO L273 TraceCheckUtils]: 53: Hoare triple {19554#(<= 4 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {19553#(<= 3 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:03:03,029 INFO L273 TraceCheckUtils]: 52: Hoare triple {19555#(<= 5 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {19554#(<= 4 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:03:03,030 INFO L273 TraceCheckUtils]: 51: Hoare triple {19556#(<= 6 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {19555#(<= 5 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:03:03,031 INFO L273 TraceCheckUtils]: 50: Hoare triple {19557#(<= 7 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {19556#(<= 6 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:03:03,031 INFO L273 TraceCheckUtils]: 49: Hoare triple {19558#(<= 8 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {19557#(<= 7 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:03:03,032 INFO L273 TraceCheckUtils]: 48: Hoare triple {19559#(<= 9 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {19558#(<= 8 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:03:03,033 INFO L273 TraceCheckUtils]: 47: Hoare triple {19560#(<= 10 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {19559#(<= 9 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:03:03,034 INFO L273 TraceCheckUtils]: 46: Hoare triple {19561#(<= 11 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {19560#(<= 10 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:03:03,035 INFO L273 TraceCheckUtils]: 45: Hoare triple {19562#(<= 12 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {19561#(<= 11 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:03:03,036 INFO L273 TraceCheckUtils]: 44: Hoare triple {19563#(<= 13 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {19562#(<= 12 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:03:03,037 INFO L273 TraceCheckUtils]: 43: Hoare triple {19564#(<= 14 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {19563#(<= 13 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:03:03,038 INFO L273 TraceCheckUtils]: 42: Hoare triple {19565#(<= 15 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {19564#(<= 14 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:03:03,038 INFO L273 TraceCheckUtils]: 41: Hoare triple {19566#(<= 16 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {19565#(<= 15 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:03:03,039 INFO L273 TraceCheckUtils]: 40: Hoare triple {19567#(<= 17 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {19566#(<= 16 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:03:03,040 INFO L273 TraceCheckUtils]: 39: Hoare triple {19568#(<= 18 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {19567#(<= 17 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:03:03,041 INFO L273 TraceCheckUtils]: 38: Hoare triple {19569#(<= 19 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {19568#(<= 18 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:03:03,042 INFO L273 TraceCheckUtils]: 37: Hoare triple {19570#(<= 20 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {19569#(<= 19 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:03:03,043 INFO L273 TraceCheckUtils]: 36: Hoare triple {19571#(<= 21 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {19570#(<= 20 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:03:03,044 INFO L273 TraceCheckUtils]: 35: Hoare triple {19572#(<= 22 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {19571#(<= 21 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:03:03,044 INFO L273 TraceCheckUtils]: 34: Hoare triple {19573#(<= 23 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {19572#(<= 22 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:03:03,045 INFO L273 TraceCheckUtils]: 33: Hoare triple {19574#(<= 24 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {19573#(<= 23 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:03:03,046 INFO L273 TraceCheckUtils]: 32: Hoare triple {19575#(<= 25 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {19574#(<= 24 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:03:03,047 INFO L273 TraceCheckUtils]: 31: Hoare triple {19576#(<= 26 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {19575#(<= 25 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:03:03,048 INFO L273 TraceCheckUtils]: 30: Hoare triple {19577#(<= 27 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {19576#(<= 26 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:03:03,049 INFO L273 TraceCheckUtils]: 29: Hoare triple {19578#(<= 28 ULTIMATE.start_main_~MAX~6)} assume !(main_~i~6 < main_~MAX~6);main_~str1~6 := main_~str1~6[main_~MAX~6 - 1 := 0];main_~j~6 := 0;main_~i~6 := main_~MAX~6 - 1; {19577#(<= 27 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:03:03,050 INFO L273 TraceCheckUtils]: 28: Hoare triple {19577#(<= 27 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {19578#(<= 28 ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:03:03,051 INFO L273 TraceCheckUtils]: 27: Hoare triple {19576#(<= 26 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {19577#(<= 27 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:03:03,051 INFO L273 TraceCheckUtils]: 26: Hoare triple {19575#(<= 25 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {19576#(<= 26 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:03:03,052 INFO L273 TraceCheckUtils]: 25: Hoare triple {19574#(<= 24 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {19575#(<= 25 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:03:03,053 INFO L273 TraceCheckUtils]: 24: Hoare triple {19573#(<= 23 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {19574#(<= 24 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:03:03,054 INFO L273 TraceCheckUtils]: 23: Hoare triple {19572#(<= 22 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {19573#(<= 23 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:03:03,055 INFO L273 TraceCheckUtils]: 22: Hoare triple {19571#(<= 21 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {19572#(<= 22 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:03:03,056 INFO L273 TraceCheckUtils]: 21: Hoare triple {19570#(<= 20 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {19571#(<= 21 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:03:03,057 INFO L273 TraceCheckUtils]: 20: Hoare triple {19569#(<= 19 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {19570#(<= 20 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:03:03,057 INFO L273 TraceCheckUtils]: 19: Hoare triple {19568#(<= 18 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {19569#(<= 19 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:03:03,058 INFO L273 TraceCheckUtils]: 18: Hoare triple {19567#(<= 17 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {19568#(<= 18 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:03:03,059 INFO L273 TraceCheckUtils]: 17: Hoare triple {19566#(<= 16 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {19567#(<= 17 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:03:03,060 INFO L273 TraceCheckUtils]: 16: Hoare triple {19565#(<= 15 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {19566#(<= 16 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:03:03,061 INFO L273 TraceCheckUtils]: 15: Hoare triple {19564#(<= 14 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {19565#(<= 15 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:03:03,062 INFO L273 TraceCheckUtils]: 14: Hoare triple {19563#(<= 13 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {19564#(<= 14 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:03:03,063 INFO L273 TraceCheckUtils]: 13: Hoare triple {19562#(<= 12 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {19563#(<= 13 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:03:03,063 INFO L273 TraceCheckUtils]: 12: Hoare triple {19561#(<= 11 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {19562#(<= 12 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:03:03,064 INFO L273 TraceCheckUtils]: 11: Hoare triple {19560#(<= 10 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {19561#(<= 11 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:03:03,065 INFO L273 TraceCheckUtils]: 10: Hoare triple {19559#(<= 9 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {19560#(<= 10 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:03:03,066 INFO L273 TraceCheckUtils]: 9: Hoare triple {19558#(<= 8 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {19559#(<= 9 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:03:03,067 INFO L273 TraceCheckUtils]: 8: Hoare triple {19557#(<= 7 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {19558#(<= 8 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:03:03,068 INFO L273 TraceCheckUtils]: 7: Hoare triple {19556#(<= 6 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {19557#(<= 7 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:03:03,069 INFO L273 TraceCheckUtils]: 6: Hoare triple {19555#(<= 5 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {19556#(<= 6 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:03:03,069 INFO L273 TraceCheckUtils]: 5: Hoare triple {19554#(<= 4 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {19555#(<= 5 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:03:03,070 INFO L273 TraceCheckUtils]: 4: Hoare triple {19553#(<= 3 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {19554#(<= 4 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:03:03,071 INFO L273 TraceCheckUtils]: 3: Hoare triple {19552#(<= 2 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {19553#(<= 3 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:03:03,072 INFO L273 TraceCheckUtils]: 2: Hoare triple {19551#(<= 1 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {19552#(<= 2 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:03:03,073 INFO L273 TraceCheckUtils]: 1: Hoare triple {19550#(<= 0 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {19551#(<= 1 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:03:03,074 INFO L273 TraceCheckUtils]: 0: Hoare triple {19548#true} havoc main_#res;havoc main_#t~nondet0, main_#t~nondet2, main_#t~post1, main_#t~post4, main_#t~post3, main_#t~post6, main_#t~post5, main_~MAX~6, main_~str1~6, main_~str2~6, main_~cont~6, main_~i~6, main_~j~6;main_~MAX~6 := (if main_#t~nondet0 % 4294967296 % 4294967296 <= 2147483647 then main_#t~nondet0 % 4294967296 % 4294967296 else main_#t~nondet0 % 4294967296 % 4294967296 - 4294967296);havoc main_#t~nondet0;havoc main_~str1~6;havoc main_~str2~6;havoc main_~cont~6;havoc main_~i~6;havoc main_~j~6;main_~cont~6 := 0;main_~i~6 := 0; {19550#(<= 0 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:03:03,078 INFO L134 CoverageAnalysis]: Checked inductivity of 784 backedges. 378 proven. 406 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-31 15:03:03,097 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-01-31 15:03:03,097 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [30, 30, 30] total 30 [2019-01-31 15:03:03,097 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-01-31 15:03:03,098 INFO L78 Accepts]: Start accepts. Automaton has 31 states. Word has length 59 [2019-01-31 15:03:03,098 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-01-31 15:03:03,098 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 31 states. [2019-01-31 15:03:03,170 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 59 edges. 59 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-01-31 15:03:03,171 INFO L459 AbstractCegarLoop]: Interpolant automaton has 31 states [2019-01-31 15:03:03,171 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2019-01-31 15:03:03,171 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=437, Invalid=493, Unknown=0, NotChecked=0, Total=930 [2019-01-31 15:03:03,171 INFO L87 Difference]: Start difference. First operand 60 states and 61 transitions. Second operand 31 states. [2019-01-31 15:03:05,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 15:03:05,296 INFO L93 Difference]: Finished difference Result 63 states and 64 transitions. [2019-01-31 15:03:05,296 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2019-01-31 15:03:05,296 INFO L78 Accepts]: Start accepts. Automaton has 31 states. Word has length 59 [2019-01-31 15:03:05,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-31 15:03:05,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2019-01-31 15:03:05,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 64 transitions. [2019-01-31 15:03:05,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2019-01-31 15:03:05,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 64 transitions. [2019-01-31 15:03:05,298 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 59 states and 64 transitions. [2019-01-31 15:03:05,353 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 64 edges. 64 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-01-31 15:03:05,354 INFO L225 Difference]: With dead ends: 63 [2019-01-31 15:03:05,354 INFO L226 Difference]: Without dead ends: 61 [2019-01-31 15:03:05,354 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 202 GetRequests, 89 SyntacticMatches, 56 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1512 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=1305, Invalid=2117, Unknown=0, NotChecked=0, Total=3422 [2019-01-31 15:03:05,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2019-01-31 15:03:06,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2019-01-31 15:03:06,964 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-01-31 15:03:06,964 INFO L82 GeneralOperation]: Start isEquivalent. First operand 61 states. Second operand 61 states. [2019-01-31 15:03:06,964 INFO L74 IsIncluded]: Start isIncluded. First operand 61 states. Second operand 61 states. [2019-01-31 15:03:06,964 INFO L87 Difference]: Start difference. First operand 61 states. Second operand 61 states. [2019-01-31 15:03:06,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 15:03:06,966 INFO L93 Difference]: Finished difference Result 61 states and 62 transitions. [2019-01-31 15:03:06,966 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 62 transitions. [2019-01-31 15:03:06,966 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-31 15:03:06,966 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-01-31 15:03:06,967 INFO L74 IsIncluded]: Start isIncluded. First operand 61 states. Second operand 61 states. [2019-01-31 15:03:06,967 INFO L87 Difference]: Start difference. First operand 61 states. Second operand 61 states. [2019-01-31 15:03:06,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 15:03:06,968 INFO L93 Difference]: Finished difference Result 61 states and 62 transitions. [2019-01-31 15:03:06,968 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 62 transitions. [2019-01-31 15:03:06,968 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-31 15:03:06,968 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-01-31 15:03:06,969 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-01-31 15:03:06,969 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-01-31 15:03:06,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2019-01-31 15:03:06,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 62 transitions. [2019-01-31 15:03:06,970 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 62 transitions. Word has length 59 [2019-01-31 15:03:06,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-31 15:03:06,970 INFO L480 AbstractCegarLoop]: Abstraction has 61 states and 62 transitions. [2019-01-31 15:03:06,970 INFO L481 AbstractCegarLoop]: Interpolant automaton has 31 states. [2019-01-31 15:03:06,970 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 62 transitions. [2019-01-31 15:03:06,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2019-01-31 15:03:06,970 INFO L394 BasicCegarLoop]: Found error trace [2019-01-31 15:03:06,971 INFO L402 BasicCegarLoop]: trace histogram [28, 28, 1, 1, 1, 1] [2019-01-31 15:03:06,971 INFO L423 AbstractCegarLoop]: === Iteration 44 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2019-01-31 15:03:06,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-31 15:03:06,971 INFO L82 PathProgramCache]: Analyzing trace with hash -903903350, now seen corresponding path program 42 times [2019-01-31 15:03:06,971 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-01-31 15:03:06,972 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-31 15:03:06,972 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-01-31 15:03:06,972 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-31 15:03:06,972 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-01-31 15:03:07,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-31 15:03:09,162 INFO L273 TraceCheckUtils]: 0: Hoare triple {20350#true} havoc main_#res;havoc main_#t~nondet0, main_#t~nondet2, main_#t~post1, main_#t~post4, main_#t~post3, main_#t~post6, main_#t~post5, main_~MAX~6, main_~str1~6, main_~str2~6, main_~cont~6, main_~i~6, main_~j~6;main_~MAX~6 := (if main_#t~nondet0 % 4294967296 % 4294967296 <= 2147483647 then main_#t~nondet0 % 4294967296 % 4294967296 else main_#t~nondet0 % 4294967296 % 4294967296 - 4294967296);havoc main_#t~nondet0;havoc main_~str1~6;havoc main_~str2~6;havoc main_~cont~6;havoc main_~i~6;havoc main_~j~6;main_~cont~6 := 0;main_~i~6 := 0; {20352#(and (<= ULTIMATE.start_main_~i~6 0) (<= 0 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:03:09,163 INFO L273 TraceCheckUtils]: 1: Hoare triple {20352#(and (<= ULTIMATE.start_main_~i~6 0) (<= 0 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {20353#(and (<= ULTIMATE.start_main_~i~6 1) (<= 1 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:03:09,164 INFO L273 TraceCheckUtils]: 2: Hoare triple {20353#(and (<= ULTIMATE.start_main_~i~6 1) (<= 1 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {20354#(and (<= ULTIMATE.start_main_~i~6 2) (<= 2 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:03:09,165 INFO L273 TraceCheckUtils]: 3: Hoare triple {20354#(and (<= ULTIMATE.start_main_~i~6 2) (<= 2 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {20355#(and (<= 3 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 3))} is VALID [2019-01-31 15:03:09,166 INFO L273 TraceCheckUtils]: 4: Hoare triple {20355#(and (<= 3 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 3))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {20356#(and (<= ULTIMATE.start_main_~i~6 4) (<= 4 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:03:09,167 INFO L273 TraceCheckUtils]: 5: Hoare triple {20356#(and (<= ULTIMATE.start_main_~i~6 4) (<= 4 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {20357#(and (<= 5 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 5))} is VALID [2019-01-31 15:03:09,168 INFO L273 TraceCheckUtils]: 6: Hoare triple {20357#(and (<= 5 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 5))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {20358#(and (<= ULTIMATE.start_main_~i~6 6) (<= 6 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:03:09,169 INFO L273 TraceCheckUtils]: 7: Hoare triple {20358#(and (<= ULTIMATE.start_main_~i~6 6) (<= 6 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {20359#(and (<= 7 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 7))} is VALID [2019-01-31 15:03:09,170 INFO L273 TraceCheckUtils]: 8: Hoare triple {20359#(and (<= 7 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 7))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {20360#(and (<= ULTIMATE.start_main_~i~6 8) (<= 8 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:03:09,171 INFO L273 TraceCheckUtils]: 9: Hoare triple {20360#(and (<= ULTIMATE.start_main_~i~6 8) (<= 8 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {20361#(and (<= ULTIMATE.start_main_~i~6 9) (<= 9 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:03:09,172 INFO L273 TraceCheckUtils]: 10: Hoare triple {20361#(and (<= ULTIMATE.start_main_~i~6 9) (<= 9 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {20362#(and (<= ULTIMATE.start_main_~i~6 10) (<= 10 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:03:09,173 INFO L273 TraceCheckUtils]: 11: Hoare triple {20362#(and (<= ULTIMATE.start_main_~i~6 10) (<= 10 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {20363#(and (<= 11 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 11))} is VALID [2019-01-31 15:03:09,174 INFO L273 TraceCheckUtils]: 12: Hoare triple {20363#(and (<= 11 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 11))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {20364#(and (<= ULTIMATE.start_main_~i~6 12) (<= 12 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:03:09,175 INFO L273 TraceCheckUtils]: 13: Hoare triple {20364#(and (<= ULTIMATE.start_main_~i~6 12) (<= 12 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {20365#(and (<= ULTIMATE.start_main_~i~6 13) (<= 13 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:03:09,175 INFO L273 TraceCheckUtils]: 14: Hoare triple {20365#(and (<= ULTIMATE.start_main_~i~6 13) (<= 13 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {20366#(and (<= ULTIMATE.start_main_~i~6 14) (<= 14 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:03:09,176 INFO L273 TraceCheckUtils]: 15: Hoare triple {20366#(and (<= ULTIMATE.start_main_~i~6 14) (<= 14 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {20367#(and (<= 15 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 15))} is VALID [2019-01-31 15:03:09,177 INFO L273 TraceCheckUtils]: 16: Hoare triple {20367#(and (<= 15 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 15))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {20368#(and (<= 16 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 16))} is VALID [2019-01-31 15:03:09,178 INFO L273 TraceCheckUtils]: 17: Hoare triple {20368#(and (<= 16 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 16))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {20369#(and (<= ULTIMATE.start_main_~i~6 17) (<= 17 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:03:09,179 INFO L273 TraceCheckUtils]: 18: Hoare triple {20369#(and (<= ULTIMATE.start_main_~i~6 17) (<= 17 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {20370#(and (<= ULTIMATE.start_main_~i~6 18) (<= 18 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:03:09,180 INFO L273 TraceCheckUtils]: 19: Hoare triple {20370#(and (<= ULTIMATE.start_main_~i~6 18) (<= 18 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {20371#(and (<= ULTIMATE.start_main_~i~6 19) (<= 19 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:03:09,181 INFO L273 TraceCheckUtils]: 20: Hoare triple {20371#(and (<= ULTIMATE.start_main_~i~6 19) (<= 19 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {20372#(and (<= ULTIMATE.start_main_~i~6 20) (<= 20 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:03:09,182 INFO L273 TraceCheckUtils]: 21: Hoare triple {20372#(and (<= ULTIMATE.start_main_~i~6 20) (<= 20 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {20373#(and (<= ULTIMATE.start_main_~i~6 21) (<= 21 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:03:09,183 INFO L273 TraceCheckUtils]: 22: Hoare triple {20373#(and (<= ULTIMATE.start_main_~i~6 21) (<= 21 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {20374#(and (<= 22 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 22))} is VALID [2019-01-31 15:03:09,184 INFO L273 TraceCheckUtils]: 23: Hoare triple {20374#(and (<= 22 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 22))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {20375#(and (<= 23 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 23))} is VALID [2019-01-31 15:03:09,185 INFO L273 TraceCheckUtils]: 24: Hoare triple {20375#(and (<= 23 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 23))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {20376#(and (<= ULTIMATE.start_main_~i~6 24) (<= 24 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:03:09,186 INFO L273 TraceCheckUtils]: 25: Hoare triple {20376#(and (<= ULTIMATE.start_main_~i~6 24) (<= 24 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {20377#(and (<= ULTIMATE.start_main_~i~6 25) (<= 25 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:03:09,187 INFO L273 TraceCheckUtils]: 26: Hoare triple {20377#(and (<= ULTIMATE.start_main_~i~6 25) (<= 25 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {20378#(and (<= 26 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 26))} is VALID [2019-01-31 15:03:09,188 INFO L273 TraceCheckUtils]: 27: Hoare triple {20378#(and (<= 26 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 26))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {20379#(or (not (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 1))) (and (<= ULTIMATE.start_main_~i~6 27) (<= 27 ULTIMATE.start_main_~i~6)))} is VALID [2019-01-31 15:03:09,189 INFO L273 TraceCheckUtils]: 28: Hoare triple {20379#(or (not (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 1))) (and (<= ULTIMATE.start_main_~i~6 27) (<= 27 ULTIMATE.start_main_~i~6)))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {20380#(or (<= (+ ULTIMATE.start_main_~i~6 1) ULTIMATE.start_main_~MAX~6) (= 28 ULTIMATE.start_main_~MAX~6))} is VALID [2019-01-31 15:03:09,190 INFO L273 TraceCheckUtils]: 29: Hoare triple {20380#(or (<= (+ ULTIMATE.start_main_~i~6 1) ULTIMATE.start_main_~MAX~6) (= 28 ULTIMATE.start_main_~MAX~6))} assume !(main_~i~6 < main_~MAX~6);main_~str1~6 := main_~str1~6[main_~MAX~6 - 1 := 0];main_~j~6 := 0;main_~i~6 := main_~MAX~6 - 1; {20381#(= (+ ULTIMATE.start_main_~j~6 28) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:03:09,191 INFO L273 TraceCheckUtils]: 30: Hoare triple {20381#(= (+ ULTIMATE.start_main_~j~6 28) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {20382#(= (+ ULTIMATE.start_main_~j~6 27) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:03:09,192 INFO L273 TraceCheckUtils]: 31: Hoare triple {20382#(= (+ ULTIMATE.start_main_~j~6 27) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {20383#(= (+ ULTIMATE.start_main_~j~6 26) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:03:09,193 INFO L273 TraceCheckUtils]: 32: Hoare triple {20383#(= (+ ULTIMATE.start_main_~j~6 26) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {20384#(= (+ ULTIMATE.start_main_~j~6 25) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:03:09,194 INFO L273 TraceCheckUtils]: 33: Hoare triple {20384#(= (+ ULTIMATE.start_main_~j~6 25) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {20385#(= (+ ULTIMATE.start_main_~j~6 24) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:03:09,195 INFO L273 TraceCheckUtils]: 34: Hoare triple {20385#(= (+ ULTIMATE.start_main_~j~6 24) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {20386#(= (+ ULTIMATE.start_main_~j~6 23) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:03:09,195 INFO L273 TraceCheckUtils]: 35: Hoare triple {20386#(= (+ ULTIMATE.start_main_~j~6 23) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {20387#(= (+ ULTIMATE.start_main_~j~6 22) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:03:09,196 INFO L273 TraceCheckUtils]: 36: Hoare triple {20387#(= (+ ULTIMATE.start_main_~j~6 22) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {20388#(= (+ ULTIMATE.start_main_~j~6 21) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:03:09,197 INFO L273 TraceCheckUtils]: 37: Hoare triple {20388#(= (+ ULTIMATE.start_main_~j~6 21) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {20389#(= (+ ULTIMATE.start_main_~j~6 20) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:03:09,198 INFO L273 TraceCheckUtils]: 38: Hoare triple {20389#(= (+ ULTIMATE.start_main_~j~6 20) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {20390#(= (+ ULTIMATE.start_main_~j~6 19) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:03:09,199 INFO L273 TraceCheckUtils]: 39: Hoare triple {20390#(= (+ ULTIMATE.start_main_~j~6 19) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {20391#(= (+ ULTIMATE.start_main_~j~6 18) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:03:09,200 INFO L273 TraceCheckUtils]: 40: Hoare triple {20391#(= (+ ULTIMATE.start_main_~j~6 18) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {20392#(= (+ ULTIMATE.start_main_~j~6 17) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:03:09,201 INFO L273 TraceCheckUtils]: 41: Hoare triple {20392#(= (+ ULTIMATE.start_main_~j~6 17) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {20393#(= (+ ULTIMATE.start_main_~j~6 16) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:03:09,202 INFO L273 TraceCheckUtils]: 42: Hoare triple {20393#(= (+ ULTIMATE.start_main_~j~6 16) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {20394#(= (+ ULTIMATE.start_main_~j~6 15) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:03:09,203 INFO L273 TraceCheckUtils]: 43: Hoare triple {20394#(= (+ ULTIMATE.start_main_~j~6 15) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {20395#(= (+ ULTIMATE.start_main_~j~6 14) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:03:09,204 INFO L273 TraceCheckUtils]: 44: Hoare triple {20395#(= (+ ULTIMATE.start_main_~j~6 14) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {20396#(= (+ ULTIMATE.start_main_~j~6 13) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:03:09,205 INFO L273 TraceCheckUtils]: 45: Hoare triple {20396#(= (+ ULTIMATE.start_main_~j~6 13) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {20397#(= (+ ULTIMATE.start_main_~j~6 12) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:03:09,206 INFO L273 TraceCheckUtils]: 46: Hoare triple {20397#(= (+ ULTIMATE.start_main_~j~6 12) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {20398#(= (+ ULTIMATE.start_main_~j~6 11) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:03:09,207 INFO L273 TraceCheckUtils]: 47: Hoare triple {20398#(= (+ ULTIMATE.start_main_~j~6 11) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {20399#(= (+ ULTIMATE.start_main_~j~6 10) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:03:09,208 INFO L273 TraceCheckUtils]: 48: Hoare triple {20399#(= (+ ULTIMATE.start_main_~j~6 10) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {20400#(= (+ ULTIMATE.start_main_~j~6 9) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:03:09,209 INFO L273 TraceCheckUtils]: 49: Hoare triple {20400#(= (+ ULTIMATE.start_main_~j~6 9) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {20401#(= (+ ULTIMATE.start_main_~j~6 8) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:03:09,210 INFO L273 TraceCheckUtils]: 50: Hoare triple {20401#(= (+ ULTIMATE.start_main_~j~6 8) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {20402#(= (+ ULTIMATE.start_main_~j~6 7) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:03:09,210 INFO L273 TraceCheckUtils]: 51: Hoare triple {20402#(= (+ ULTIMATE.start_main_~j~6 7) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {20403#(= (+ ULTIMATE.start_main_~j~6 6) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:03:09,211 INFO L273 TraceCheckUtils]: 52: Hoare triple {20403#(= (+ ULTIMATE.start_main_~j~6 6) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {20404#(= (+ ULTIMATE.start_main_~j~6 5) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:03:09,212 INFO L273 TraceCheckUtils]: 53: Hoare triple {20404#(= (+ ULTIMATE.start_main_~j~6 5) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {20405#(= (+ ULTIMATE.start_main_~j~6 4) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:03:09,213 INFO L273 TraceCheckUtils]: 54: Hoare triple {20405#(= (+ ULTIMATE.start_main_~j~6 4) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {20406#(= (+ ULTIMATE.start_main_~j~6 3) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:03:09,214 INFO L273 TraceCheckUtils]: 55: Hoare triple {20406#(= (+ ULTIMATE.start_main_~j~6 3) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {20407#(= (+ ULTIMATE.start_main_~j~6 2) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:03:09,215 INFO L273 TraceCheckUtils]: 56: Hoare triple {20407#(= (+ ULTIMATE.start_main_~j~6 2) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {20408#(= (+ ULTIMATE.start_main_~j~6 1) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:03:09,216 INFO L273 TraceCheckUtils]: 57: Hoare triple {20408#(= (+ ULTIMATE.start_main_~j~6 1) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {20409#(= (select ULTIMATE.start_main_~str1~6 0) (select ULTIMATE.start_main_~str2~6 (+ ULTIMATE.start_main_~MAX~6 (- 1))))} is VALID [2019-01-31 15:03:09,217 INFO L273 TraceCheckUtils]: 58: Hoare triple {20409#(= (select ULTIMATE.start_main_~str1~6 0) (select ULTIMATE.start_main_~str2~6 (+ ULTIMATE.start_main_~MAX~6 (- 1))))} assume !(main_~i~6 >= 0);main_~j~6 := main_~MAX~6 - 1;main_~i~6 := 0;assume !!(main_~i~6 < main_~MAX~6);__VERIFIER_assert_#in~cond := (if main_~str1~6[main_~i~6] == main_~str2~6[main_~j~6] then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond;assume __VERIFIER_assert_~cond == 0;assume !false; {20351#false} is VALID [2019-01-31 15:03:09,218 INFO L273 TraceCheckUtils]: 59: Hoare triple {20351#false} assume !false; {20351#false} is VALID [2019-01-31 15:03:09,224 INFO L134 CoverageAnalysis]: Checked inductivity of 812 backedges. 0 proven. 812 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-31 15:03:09,225 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-31 15:03:09,225 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-01-31 15:03:09,225 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-01-31 15:03:09,225 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-01-31 15:03:09,225 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-31 15:03:09,225 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 43 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 43 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-01-31 15:03:09,233 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2019-01-31 15:03:09,233 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder TERMS_WITH_SMALL_CONSTANTS_FIRST (IT: FPandBP) [2019-01-31 15:03:09,270 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-01-31 15:03:09,270 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-01-31 15:03:09,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-31 15:03:09,296 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-31 15:03:11,765 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2019-01-31 15:03:11,766 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-01-31 15:03:11,773 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-31 15:03:11,773 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:17, output treesize:16 [2019-01-31 15:03:11,776 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-01-31 15:03:11,776 WARN L398 uantifierElimination]: Input elimination task: ∃ [v_ULTIMATE.start_main_~str2~6_608]. (and (<= 28 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 29)) (= (store v_ULTIMATE.start_main_~str2~6_608 27 (select ULTIMATE.start_main_~str1~6 0)) ULTIMATE.start_main_~str2~6)) [2019-01-31 15:03:11,777 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (and (<= 28 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 29)) (= (select ULTIMATE.start_main_~str2~6 27) (select ULTIMATE.start_main_~str1~6 0))) [2019-01-31 15:03:11,872 INFO L273 TraceCheckUtils]: 0: Hoare triple {20350#true} havoc main_#res;havoc main_#t~nondet0, main_#t~nondet2, main_#t~post1, main_#t~post4, main_#t~post3, main_#t~post6, main_#t~post5, main_~MAX~6, main_~str1~6, main_~str2~6, main_~cont~6, main_~i~6, main_~j~6;main_~MAX~6 := (if main_#t~nondet0 % 4294967296 % 4294967296 <= 2147483647 then main_#t~nondet0 % 4294967296 % 4294967296 else main_#t~nondet0 % 4294967296 % 4294967296 - 4294967296);havoc main_#t~nondet0;havoc main_~str1~6;havoc main_~str2~6;havoc main_~cont~6;havoc main_~i~6;havoc main_~j~6;main_~cont~6 := 0;main_~i~6 := 0; {20350#true} is VALID [2019-01-31 15:03:11,873 INFO L273 TraceCheckUtils]: 1: Hoare triple {20350#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {20350#true} is VALID [2019-01-31 15:03:11,873 INFO L273 TraceCheckUtils]: 2: Hoare triple {20350#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {20350#true} is VALID [2019-01-31 15:03:11,873 INFO L273 TraceCheckUtils]: 3: Hoare triple {20350#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {20350#true} is VALID [2019-01-31 15:03:11,873 INFO L273 TraceCheckUtils]: 4: Hoare triple {20350#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {20350#true} is VALID [2019-01-31 15:03:11,873 INFO L273 TraceCheckUtils]: 5: Hoare triple {20350#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {20350#true} is VALID [2019-01-31 15:03:11,873 INFO L273 TraceCheckUtils]: 6: Hoare triple {20350#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {20350#true} is VALID [2019-01-31 15:03:11,873 INFO L273 TraceCheckUtils]: 7: Hoare triple {20350#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {20350#true} is VALID [2019-01-31 15:03:11,873 INFO L273 TraceCheckUtils]: 8: Hoare triple {20350#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {20350#true} is VALID [2019-01-31 15:03:11,874 INFO L273 TraceCheckUtils]: 9: Hoare triple {20350#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {20350#true} is VALID [2019-01-31 15:03:11,874 INFO L273 TraceCheckUtils]: 10: Hoare triple {20350#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {20350#true} is VALID [2019-01-31 15:03:11,874 INFO L273 TraceCheckUtils]: 11: Hoare triple {20350#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {20350#true} is VALID [2019-01-31 15:03:11,874 INFO L273 TraceCheckUtils]: 12: Hoare triple {20350#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {20350#true} is VALID [2019-01-31 15:03:11,874 INFO L273 TraceCheckUtils]: 13: Hoare triple {20350#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {20350#true} is VALID [2019-01-31 15:03:11,874 INFO L273 TraceCheckUtils]: 14: Hoare triple {20350#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {20350#true} is VALID [2019-01-31 15:03:11,874 INFO L273 TraceCheckUtils]: 15: Hoare triple {20350#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {20350#true} is VALID [2019-01-31 15:03:11,874 INFO L273 TraceCheckUtils]: 16: Hoare triple {20350#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {20350#true} is VALID [2019-01-31 15:03:11,874 INFO L273 TraceCheckUtils]: 17: Hoare triple {20350#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {20350#true} is VALID [2019-01-31 15:03:11,874 INFO L273 TraceCheckUtils]: 18: Hoare triple {20350#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {20350#true} is VALID [2019-01-31 15:03:11,875 INFO L273 TraceCheckUtils]: 19: Hoare triple {20350#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {20350#true} is VALID [2019-01-31 15:03:11,875 INFO L273 TraceCheckUtils]: 20: Hoare triple {20350#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {20350#true} is VALID [2019-01-31 15:03:11,875 INFO L273 TraceCheckUtils]: 21: Hoare triple {20350#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {20350#true} is VALID [2019-01-31 15:03:11,875 INFO L273 TraceCheckUtils]: 22: Hoare triple {20350#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {20350#true} is VALID [2019-01-31 15:03:11,875 INFO L273 TraceCheckUtils]: 23: Hoare triple {20350#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {20350#true} is VALID [2019-01-31 15:03:11,875 INFO L273 TraceCheckUtils]: 24: Hoare triple {20350#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {20350#true} is VALID [2019-01-31 15:03:11,875 INFO L273 TraceCheckUtils]: 25: Hoare triple {20350#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {20350#true} is VALID [2019-01-31 15:03:11,875 INFO L273 TraceCheckUtils]: 26: Hoare triple {20350#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {20350#true} is VALID [2019-01-31 15:03:11,875 INFO L273 TraceCheckUtils]: 27: Hoare triple {20350#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {20350#true} is VALID [2019-01-31 15:03:11,876 INFO L273 TraceCheckUtils]: 28: Hoare triple {20350#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {20350#true} is VALID [2019-01-31 15:03:11,876 INFO L273 TraceCheckUtils]: 29: Hoare triple {20350#true} assume !(main_~i~6 < main_~MAX~6);main_~str1~6 := main_~str1~6[main_~MAX~6 - 1 := 0];main_~j~6 := 0;main_~i~6 := main_~MAX~6 - 1; {20500#(and (= ULTIMATE.start_main_~j~6 0) (= (+ ULTIMATE.start_main_~i~6 1) ULTIMATE.start_main_~MAX~6))} is VALID [2019-01-31 15:03:11,877 INFO L273 TraceCheckUtils]: 30: Hoare triple {20500#(and (= ULTIMATE.start_main_~j~6 0) (= (+ ULTIMATE.start_main_~i~6 1) ULTIMATE.start_main_~MAX~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {20504#(and (= ULTIMATE.start_main_~j~6 1) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 2)))} is VALID [2019-01-31 15:03:11,877 INFO L273 TraceCheckUtils]: 31: Hoare triple {20504#(and (= ULTIMATE.start_main_~j~6 1) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 2)))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {20508#(and (= (+ ULTIMATE.start_main_~i~6 3) ULTIMATE.start_main_~MAX~6) (= ULTIMATE.start_main_~j~6 2))} is VALID [2019-01-31 15:03:11,878 INFO L273 TraceCheckUtils]: 32: Hoare triple {20508#(and (= (+ ULTIMATE.start_main_~i~6 3) ULTIMATE.start_main_~MAX~6) (= ULTIMATE.start_main_~j~6 2))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {20512#(and (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 4)) (= ULTIMATE.start_main_~j~6 3))} is VALID [2019-01-31 15:03:11,878 INFO L273 TraceCheckUtils]: 33: Hoare triple {20512#(and (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 4)) (= ULTIMATE.start_main_~j~6 3))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {20516#(and (= ULTIMATE.start_main_~j~6 4) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 5)))} is VALID [2019-01-31 15:03:11,879 INFO L273 TraceCheckUtils]: 34: Hoare triple {20516#(and (= ULTIMATE.start_main_~j~6 4) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 5)))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {20520#(and (= ULTIMATE.start_main_~j~6 5) (= (+ ULTIMATE.start_main_~i~6 6) ULTIMATE.start_main_~MAX~6))} is VALID [2019-01-31 15:03:11,880 INFO L273 TraceCheckUtils]: 35: Hoare triple {20520#(and (= ULTIMATE.start_main_~j~6 5) (= (+ ULTIMATE.start_main_~i~6 6) ULTIMATE.start_main_~MAX~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {20524#(and (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 7)) (= ULTIMATE.start_main_~j~6 6))} is VALID [2019-01-31 15:03:11,881 INFO L273 TraceCheckUtils]: 36: Hoare triple {20524#(and (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 7)) (= ULTIMATE.start_main_~j~6 6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {20528#(and (= ULTIMATE.start_main_~j~6 7) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 8)))} is VALID [2019-01-31 15:03:11,882 INFO L273 TraceCheckUtils]: 37: Hoare triple {20528#(and (= ULTIMATE.start_main_~j~6 7) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 8)))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {20532#(and (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 9)) (= ULTIMATE.start_main_~j~6 8))} is VALID [2019-01-31 15:03:11,883 INFO L273 TraceCheckUtils]: 38: Hoare triple {20532#(and (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 9)) (= ULTIMATE.start_main_~j~6 8))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {20536#(and (= ULTIMATE.start_main_~j~6 9) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 10)))} is VALID [2019-01-31 15:03:11,884 INFO L273 TraceCheckUtils]: 39: Hoare triple {20536#(and (= ULTIMATE.start_main_~j~6 9) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 10)))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {20540#(and (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 11)) (= ULTIMATE.start_main_~j~6 10))} is VALID [2019-01-31 15:03:11,885 INFO L273 TraceCheckUtils]: 40: Hoare triple {20540#(and (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 11)) (= ULTIMATE.start_main_~j~6 10))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {20544#(and (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 12)) (= ULTIMATE.start_main_~j~6 11))} is VALID [2019-01-31 15:03:11,886 INFO L273 TraceCheckUtils]: 41: Hoare triple {20544#(and (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 12)) (= ULTIMATE.start_main_~j~6 11))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {20548#(and (= ULTIMATE.start_main_~j~6 12) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 13)))} is VALID [2019-01-31 15:03:11,887 INFO L273 TraceCheckUtils]: 42: Hoare triple {20548#(and (= ULTIMATE.start_main_~j~6 12) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 13)))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {20552#(and (= ULTIMATE.start_main_~j~6 13) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 14)))} is VALID [2019-01-31 15:03:11,888 INFO L273 TraceCheckUtils]: 43: Hoare triple {20552#(and (= ULTIMATE.start_main_~j~6 13) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 14)))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {20556#(and (= ULTIMATE.start_main_~j~6 14) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 15)))} is VALID [2019-01-31 15:03:11,889 INFO L273 TraceCheckUtils]: 44: Hoare triple {20556#(and (= ULTIMATE.start_main_~j~6 14) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 15)))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {20560#(and (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 16)) (= ULTIMATE.start_main_~j~6 15))} is VALID [2019-01-31 15:03:11,890 INFO L273 TraceCheckUtils]: 45: Hoare triple {20560#(and (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 16)) (= ULTIMATE.start_main_~j~6 15))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {20564#(and (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 17)) (= ULTIMATE.start_main_~j~6 16))} is VALID [2019-01-31 15:03:11,891 INFO L273 TraceCheckUtils]: 46: Hoare triple {20564#(and (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 17)) (= ULTIMATE.start_main_~j~6 16))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {20568#(and (= ULTIMATE.start_main_~j~6 17) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 18)))} is VALID [2019-01-31 15:03:11,892 INFO L273 TraceCheckUtils]: 47: Hoare triple {20568#(and (= ULTIMATE.start_main_~j~6 17) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 18)))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {20572#(and (= ULTIMATE.start_main_~j~6 18) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 19)))} is VALID [2019-01-31 15:03:11,893 INFO L273 TraceCheckUtils]: 48: Hoare triple {20572#(and (= ULTIMATE.start_main_~j~6 18) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 19)))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {20576#(and (= ULTIMATE.start_main_~j~6 19) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 20)))} is VALID [2019-01-31 15:03:11,894 INFO L273 TraceCheckUtils]: 49: Hoare triple {20576#(and (= ULTIMATE.start_main_~j~6 19) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 20)))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {20580#(and (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 21)) (= ULTIMATE.start_main_~j~6 20))} is VALID [2019-01-31 15:03:11,895 INFO L273 TraceCheckUtils]: 50: Hoare triple {20580#(and (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 21)) (= ULTIMATE.start_main_~j~6 20))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {20584#(and (= ULTIMATE.start_main_~j~6 21) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 22)))} is VALID [2019-01-31 15:03:11,896 INFO L273 TraceCheckUtils]: 51: Hoare triple {20584#(and (= ULTIMATE.start_main_~j~6 21) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 22)))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {20588#(and (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 23)) (= ULTIMATE.start_main_~j~6 22))} is VALID [2019-01-31 15:03:11,897 INFO L273 TraceCheckUtils]: 52: Hoare triple {20588#(and (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 23)) (= ULTIMATE.start_main_~j~6 22))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {20592#(and (= ULTIMATE.start_main_~j~6 23) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 24)))} is VALID [2019-01-31 15:03:11,898 INFO L273 TraceCheckUtils]: 53: Hoare triple {20592#(and (= ULTIMATE.start_main_~j~6 23) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 24)))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {20596#(and (= ULTIMATE.start_main_~j~6 24) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 25)))} is VALID [2019-01-31 15:03:11,899 INFO L273 TraceCheckUtils]: 54: Hoare triple {20596#(and (= ULTIMATE.start_main_~j~6 24) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 25)))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {20600#(and (= ULTIMATE.start_main_~j~6 25) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 26)))} is VALID [2019-01-31 15:03:11,900 INFO L273 TraceCheckUtils]: 55: Hoare triple {20600#(and (= ULTIMATE.start_main_~j~6 25) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 26)))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {20604#(and (= ULTIMATE.start_main_~j~6 26) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 27)))} is VALID [2019-01-31 15:03:11,901 INFO L273 TraceCheckUtils]: 56: Hoare triple {20604#(and (= ULTIMATE.start_main_~j~6 26) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 27)))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {20608#(and (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 28)) (= ULTIMATE.start_main_~j~6 27))} is VALID [2019-01-31 15:03:11,902 INFO L273 TraceCheckUtils]: 57: Hoare triple {20608#(and (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 28)) (= ULTIMATE.start_main_~j~6 27))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {20612#(and (<= 28 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 29)) (= (select ULTIMATE.start_main_~str2~6 27) (select ULTIMATE.start_main_~str1~6 0)))} is VALID [2019-01-31 15:03:11,904 INFO L273 TraceCheckUtils]: 58: Hoare triple {20612#(and (<= 28 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 29)) (= (select ULTIMATE.start_main_~str2~6 27) (select ULTIMATE.start_main_~str1~6 0)))} assume !(main_~i~6 >= 0);main_~j~6 := main_~MAX~6 - 1;main_~i~6 := 0;assume !!(main_~i~6 < main_~MAX~6);__VERIFIER_assert_#in~cond := (if main_~str1~6[main_~i~6] == main_~str2~6[main_~j~6] then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond;assume __VERIFIER_assert_~cond == 0;assume !false; {20351#false} is VALID [2019-01-31 15:03:11,904 INFO L273 TraceCheckUtils]: 59: Hoare triple {20351#false} assume !false; {20351#false} is VALID [2019-01-31 15:03:11,909 INFO L134 CoverageAnalysis]: Checked inductivity of 812 backedges. 0 proven. 406 refuted. 0 times theorem prover too weak. 406 trivial. 0 not checked. [2019-01-31 15:03:11,909 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2019-01-31 15:03:12,037 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 5 [2019-01-31 15:03:12,039 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-01-31 15:03:12,050 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-31 15:03:12,050 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:22, output treesize:12 [2019-01-31 15:03:12,052 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-01-31 15:03:12,052 WARN L398 uantifierElimination]: Input elimination task: ∀ [ULTIMATE.start_main_~str2~6, ULTIMATE.start_main_~str1~6]. (or (not (<= 0 ULTIMATE.start_main_~i~6)) (let ((.cse0 (select ULTIMATE.start_main_~str1~6 0))) (= .cse0 (select (store ULTIMATE.start_main_~str2~6 ULTIMATE.start_main_~j~6 .cse0) (+ ULTIMATE.start_main_~MAX~6 (- 1))))) (< 0 ULTIMATE.start_main_~i~6)) [2019-01-31 15:03:12,053 WARN L399 uantifierElimination]: ElimStorePlain result: ∀ []. (or (< ULTIMATE.start_main_~i~6 0) (< 0 ULTIMATE.start_main_~i~6) (= (+ ULTIMATE.start_main_~j~6 1) ULTIMATE.start_main_~MAX~6)) [2019-01-31 15:03:14,751 INFO L273 TraceCheckUtils]: 59: Hoare triple {20351#false} assume !false; {20351#false} is VALID [2019-01-31 15:03:14,752 INFO L273 TraceCheckUtils]: 58: Hoare triple {20622#(or (= (select ULTIMATE.start_main_~str1~6 0) (select ULTIMATE.start_main_~str2~6 (+ ULTIMATE.start_main_~MAX~6 (- 1)))) (<= 0 ULTIMATE.start_main_~i~6))} assume !(main_~i~6 >= 0);main_~j~6 := main_~MAX~6 - 1;main_~i~6 := 0;assume !!(main_~i~6 < main_~MAX~6);__VERIFIER_assert_#in~cond := (if main_~str1~6[main_~i~6] == main_~str2~6[main_~j~6] then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond;assume __VERIFIER_assert_~cond == 0;assume !false; {20351#false} is VALID [2019-01-31 15:03:14,753 INFO L273 TraceCheckUtils]: 57: Hoare triple {20626#(or (< ULTIMATE.start_main_~i~6 0) (< 0 ULTIMATE.start_main_~i~6) (= (+ ULTIMATE.start_main_~j~6 1) ULTIMATE.start_main_~MAX~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {20622#(or (= (select ULTIMATE.start_main_~str1~6 0) (select ULTIMATE.start_main_~str2~6 (+ ULTIMATE.start_main_~MAX~6 (- 1)))) (<= 0 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:03:14,754 INFO L273 TraceCheckUtils]: 56: Hoare triple {20630#(or (= (+ ULTIMATE.start_main_~j~6 2) ULTIMATE.start_main_~MAX~6) (< 1 ULTIMATE.start_main_~i~6) (< ULTIMATE.start_main_~i~6 1))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {20626#(or (< ULTIMATE.start_main_~i~6 0) (< 0 ULTIMATE.start_main_~i~6) (= (+ ULTIMATE.start_main_~j~6 1) ULTIMATE.start_main_~MAX~6))} is VALID [2019-01-31 15:03:14,756 INFO L273 TraceCheckUtils]: 55: Hoare triple {20634#(or (= (+ ULTIMATE.start_main_~j~6 3) ULTIMATE.start_main_~MAX~6) (< ULTIMATE.start_main_~i~6 2) (< 2 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {20630#(or (= (+ ULTIMATE.start_main_~j~6 2) ULTIMATE.start_main_~MAX~6) (< 1 ULTIMATE.start_main_~i~6) (< ULTIMATE.start_main_~i~6 1))} is VALID [2019-01-31 15:03:14,757 INFO L273 TraceCheckUtils]: 54: Hoare triple {20638#(or (= (+ ULTIMATE.start_main_~j~6 4) ULTIMATE.start_main_~MAX~6) (< ULTIMATE.start_main_~i~6 3) (< 3 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {20634#(or (= (+ ULTIMATE.start_main_~j~6 3) ULTIMATE.start_main_~MAX~6) (< ULTIMATE.start_main_~i~6 2) (< 2 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:03:14,758 INFO L273 TraceCheckUtils]: 53: Hoare triple {20642#(or (= (+ ULTIMATE.start_main_~j~6 5) ULTIMATE.start_main_~MAX~6) (< 4 ULTIMATE.start_main_~i~6) (< ULTIMATE.start_main_~i~6 4))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {20638#(or (= (+ ULTIMATE.start_main_~j~6 4) ULTIMATE.start_main_~MAX~6) (< ULTIMATE.start_main_~i~6 3) (< 3 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:03:14,759 INFO L273 TraceCheckUtils]: 52: Hoare triple {20646#(or (< ULTIMATE.start_main_~i~6 5) (< 5 ULTIMATE.start_main_~i~6) (= (+ ULTIMATE.start_main_~j~6 6) ULTIMATE.start_main_~MAX~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {20642#(or (= (+ ULTIMATE.start_main_~j~6 5) ULTIMATE.start_main_~MAX~6) (< 4 ULTIMATE.start_main_~i~6) (< ULTIMATE.start_main_~i~6 4))} is VALID [2019-01-31 15:03:14,760 INFO L273 TraceCheckUtils]: 51: Hoare triple {20650#(or (< ULTIMATE.start_main_~i~6 6) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 7)) (< 6 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {20646#(or (< ULTIMATE.start_main_~i~6 5) (< 5 ULTIMATE.start_main_~i~6) (= (+ ULTIMATE.start_main_~j~6 6) ULTIMATE.start_main_~MAX~6))} is VALID [2019-01-31 15:03:14,761 INFO L273 TraceCheckUtils]: 50: Hoare triple {20654#(or (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 8)) (< ULTIMATE.start_main_~i~6 7) (< 7 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {20650#(or (< ULTIMATE.start_main_~i~6 6) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 7)) (< 6 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:03:14,762 INFO L273 TraceCheckUtils]: 49: Hoare triple {20658#(or (< 8 ULTIMATE.start_main_~i~6) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 9)) (< ULTIMATE.start_main_~i~6 8))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {20654#(or (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 8)) (< ULTIMATE.start_main_~i~6 7) (< 7 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:03:14,764 INFO L273 TraceCheckUtils]: 48: Hoare triple {20662#(or (< ULTIMATE.start_main_~i~6 9) (= (+ ULTIMATE.start_main_~j~6 10) ULTIMATE.start_main_~MAX~6) (< 9 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {20658#(or (< 8 ULTIMATE.start_main_~i~6) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 9)) (< ULTIMATE.start_main_~i~6 8))} is VALID [2019-01-31 15:03:14,765 INFO L273 TraceCheckUtils]: 47: Hoare triple {20666#(or (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 11)) (< 10 ULTIMATE.start_main_~i~6) (< ULTIMATE.start_main_~i~6 10))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {20662#(or (< ULTIMATE.start_main_~i~6 9) (= (+ ULTIMATE.start_main_~j~6 10) ULTIMATE.start_main_~MAX~6) (< 9 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:03:14,766 INFO L273 TraceCheckUtils]: 46: Hoare triple {20670#(or (< ULTIMATE.start_main_~i~6 11) (= (+ ULTIMATE.start_main_~j~6 12) ULTIMATE.start_main_~MAX~6) (< 11 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {20666#(or (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 11)) (< 10 ULTIMATE.start_main_~i~6) (< ULTIMATE.start_main_~i~6 10))} is VALID [2019-01-31 15:03:14,767 INFO L273 TraceCheckUtils]: 45: Hoare triple {20674#(or (< 12 ULTIMATE.start_main_~i~6) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 13)) (< ULTIMATE.start_main_~i~6 12))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {20670#(or (< ULTIMATE.start_main_~i~6 11) (= (+ ULTIMATE.start_main_~j~6 12) ULTIMATE.start_main_~MAX~6) (< 11 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:03:14,768 INFO L273 TraceCheckUtils]: 44: Hoare triple {20678#(or (< ULTIMATE.start_main_~i~6 13) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 14)) (< 13 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {20674#(or (< 12 ULTIMATE.start_main_~i~6) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 13)) (< ULTIMATE.start_main_~i~6 12))} is VALID [2019-01-31 15:03:14,769 INFO L273 TraceCheckUtils]: 43: Hoare triple {20682#(or (< 14 ULTIMATE.start_main_~i~6) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 15)) (< ULTIMATE.start_main_~i~6 14))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {20678#(or (< ULTIMATE.start_main_~i~6 13) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 14)) (< 13 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:03:14,770 INFO L273 TraceCheckUtils]: 42: Hoare triple {20686#(or (< 15 ULTIMATE.start_main_~i~6) (< ULTIMATE.start_main_~i~6 15) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 16)))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {20682#(or (< 14 ULTIMATE.start_main_~i~6) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 15)) (< ULTIMATE.start_main_~i~6 14))} is VALID [2019-01-31 15:03:14,772 INFO L273 TraceCheckUtils]: 41: Hoare triple {20690#(or (< ULTIMATE.start_main_~i~6 16) (< 16 ULTIMATE.start_main_~i~6) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 17)))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {20686#(or (< 15 ULTIMATE.start_main_~i~6) (< ULTIMATE.start_main_~i~6 15) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 16)))} is VALID [2019-01-31 15:03:14,773 INFO L273 TraceCheckUtils]: 40: Hoare triple {20694#(or (< ULTIMATE.start_main_~i~6 17) (< 17 ULTIMATE.start_main_~i~6) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 18)))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {20690#(or (< ULTIMATE.start_main_~i~6 16) (< 16 ULTIMATE.start_main_~i~6) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 17)))} is VALID [2019-01-31 15:03:14,774 INFO L273 TraceCheckUtils]: 39: Hoare triple {20698#(or (< ULTIMATE.start_main_~i~6 18) (< 18 ULTIMATE.start_main_~i~6) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 19)))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {20694#(or (< ULTIMATE.start_main_~i~6 17) (< 17 ULTIMATE.start_main_~i~6) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 18)))} is VALID [2019-01-31 15:03:14,775 INFO L273 TraceCheckUtils]: 38: Hoare triple {20702#(or (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 20)) (< 19 ULTIMATE.start_main_~i~6) (< ULTIMATE.start_main_~i~6 19))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {20698#(or (< ULTIMATE.start_main_~i~6 18) (< 18 ULTIMATE.start_main_~i~6) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 19)))} is VALID [2019-01-31 15:03:14,776 INFO L273 TraceCheckUtils]: 37: Hoare triple {20706#(or (< ULTIMATE.start_main_~i~6 20) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 21)) (< 20 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {20702#(or (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 20)) (< 19 ULTIMATE.start_main_~i~6) (< ULTIMATE.start_main_~i~6 19))} is VALID [2019-01-31 15:03:14,777 INFO L273 TraceCheckUtils]: 36: Hoare triple {20710#(or (< 21 ULTIMATE.start_main_~i~6) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 22)) (< ULTIMATE.start_main_~i~6 21))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {20706#(or (< ULTIMATE.start_main_~i~6 20) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 21)) (< 20 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:03:14,778 INFO L273 TraceCheckUtils]: 35: Hoare triple {20714#(or (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 23)) (< ULTIMATE.start_main_~i~6 22) (< 22 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {20710#(or (< 21 ULTIMATE.start_main_~i~6) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 22)) (< ULTIMATE.start_main_~i~6 21))} is VALID [2019-01-31 15:03:14,779 INFO L273 TraceCheckUtils]: 34: Hoare triple {20718#(or (< ULTIMATE.start_main_~i~6 23) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 24)) (< 23 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {20714#(or (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 23)) (< ULTIMATE.start_main_~i~6 22) (< 22 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:03:14,780 INFO L273 TraceCheckUtils]: 33: Hoare triple {20722#(or (< 24 ULTIMATE.start_main_~i~6) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 25)) (< ULTIMATE.start_main_~i~6 24))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {20718#(or (< ULTIMATE.start_main_~i~6 23) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 24)) (< 23 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:03:14,781 INFO L273 TraceCheckUtils]: 32: Hoare triple {20726#(or (< 25 ULTIMATE.start_main_~i~6) (< ULTIMATE.start_main_~i~6 25) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 26)))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {20722#(or (< 24 ULTIMATE.start_main_~i~6) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 25)) (< ULTIMATE.start_main_~i~6 24))} is VALID [2019-01-31 15:03:14,782 INFO L273 TraceCheckUtils]: 31: Hoare triple {20730#(or (< 26 ULTIMATE.start_main_~i~6) (< ULTIMATE.start_main_~i~6 26) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 27)))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {20726#(or (< 25 ULTIMATE.start_main_~i~6) (< ULTIMATE.start_main_~i~6 25) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 26)))} is VALID [2019-01-31 15:03:14,783 INFO L273 TraceCheckUtils]: 30: Hoare triple {20734#(or (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 28)) (< 27 ULTIMATE.start_main_~i~6) (< ULTIMATE.start_main_~i~6 27))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {20730#(or (< 26 ULTIMATE.start_main_~i~6) (< ULTIMATE.start_main_~i~6 26) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 27)))} is VALID [2019-01-31 15:03:14,784 INFO L273 TraceCheckUtils]: 29: Hoare triple {20350#true} assume !(main_~i~6 < main_~MAX~6);main_~str1~6 := main_~str1~6[main_~MAX~6 - 1 := 0];main_~j~6 := 0;main_~i~6 := main_~MAX~6 - 1; {20734#(or (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 28)) (< 27 ULTIMATE.start_main_~i~6) (< ULTIMATE.start_main_~i~6 27))} is VALID [2019-01-31 15:03:14,785 INFO L273 TraceCheckUtils]: 28: Hoare triple {20350#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {20350#true} is VALID [2019-01-31 15:03:14,785 INFO L273 TraceCheckUtils]: 27: Hoare triple {20350#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {20350#true} is VALID [2019-01-31 15:03:14,785 INFO L273 TraceCheckUtils]: 26: Hoare triple {20350#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {20350#true} is VALID [2019-01-31 15:03:14,785 INFO L273 TraceCheckUtils]: 25: Hoare triple {20350#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {20350#true} is VALID [2019-01-31 15:03:14,785 INFO L273 TraceCheckUtils]: 24: Hoare triple {20350#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {20350#true} is VALID [2019-01-31 15:03:14,786 INFO L273 TraceCheckUtils]: 23: Hoare triple {20350#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {20350#true} is VALID [2019-01-31 15:03:14,786 INFO L273 TraceCheckUtils]: 22: Hoare triple {20350#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {20350#true} is VALID [2019-01-31 15:03:14,786 INFO L273 TraceCheckUtils]: 21: Hoare triple {20350#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {20350#true} is VALID [2019-01-31 15:03:14,786 INFO L273 TraceCheckUtils]: 20: Hoare triple {20350#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {20350#true} is VALID [2019-01-31 15:03:14,786 INFO L273 TraceCheckUtils]: 19: Hoare triple {20350#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {20350#true} is VALID [2019-01-31 15:03:14,786 INFO L273 TraceCheckUtils]: 18: Hoare triple {20350#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {20350#true} is VALID [2019-01-31 15:03:14,787 INFO L273 TraceCheckUtils]: 17: Hoare triple {20350#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {20350#true} is VALID [2019-01-31 15:03:14,787 INFO L273 TraceCheckUtils]: 16: Hoare triple {20350#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {20350#true} is VALID [2019-01-31 15:03:14,787 INFO L273 TraceCheckUtils]: 15: Hoare triple {20350#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {20350#true} is VALID [2019-01-31 15:03:14,787 INFO L273 TraceCheckUtils]: 14: Hoare triple {20350#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {20350#true} is VALID [2019-01-31 15:03:14,787 INFO L273 TraceCheckUtils]: 13: Hoare triple {20350#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {20350#true} is VALID [2019-01-31 15:03:14,787 INFO L273 TraceCheckUtils]: 12: Hoare triple {20350#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {20350#true} is VALID [2019-01-31 15:03:14,787 INFO L273 TraceCheckUtils]: 11: Hoare triple {20350#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {20350#true} is VALID [2019-01-31 15:03:14,787 INFO L273 TraceCheckUtils]: 10: Hoare triple {20350#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {20350#true} is VALID [2019-01-31 15:03:14,787 INFO L273 TraceCheckUtils]: 9: Hoare triple {20350#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {20350#true} is VALID [2019-01-31 15:03:14,788 INFO L273 TraceCheckUtils]: 8: Hoare triple {20350#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {20350#true} is VALID [2019-01-31 15:03:14,788 INFO L273 TraceCheckUtils]: 7: Hoare triple {20350#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {20350#true} is VALID [2019-01-31 15:03:14,788 INFO L273 TraceCheckUtils]: 6: Hoare triple {20350#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {20350#true} is VALID [2019-01-31 15:03:14,788 INFO L273 TraceCheckUtils]: 5: Hoare triple {20350#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {20350#true} is VALID [2019-01-31 15:03:14,788 INFO L273 TraceCheckUtils]: 4: Hoare triple {20350#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {20350#true} is VALID [2019-01-31 15:03:14,788 INFO L273 TraceCheckUtils]: 3: Hoare triple {20350#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {20350#true} is VALID [2019-01-31 15:03:14,788 INFO L273 TraceCheckUtils]: 2: Hoare triple {20350#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {20350#true} is VALID [2019-01-31 15:03:14,788 INFO L273 TraceCheckUtils]: 1: Hoare triple {20350#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {20350#true} is VALID [2019-01-31 15:03:14,788 INFO L273 TraceCheckUtils]: 0: Hoare triple {20350#true} havoc main_#res;havoc main_#t~nondet0, main_#t~nondet2, main_#t~post1, main_#t~post4, main_#t~post3, main_#t~post6, main_#t~post5, main_~MAX~6, main_~str1~6, main_~str2~6, main_~cont~6, main_~i~6, main_~j~6;main_~MAX~6 := (if main_#t~nondet0 % 4294967296 % 4294967296 <= 2147483647 then main_#t~nondet0 % 4294967296 % 4294967296 else main_#t~nondet0 % 4294967296 % 4294967296 - 4294967296);havoc main_#t~nondet0;havoc main_~str1~6;havoc main_~str2~6;havoc main_~cont~6;havoc main_~i~6;havoc main_~j~6;main_~cont~6 := 0;main_~i~6 := 0; {20350#true} is VALID [2019-01-31 15:03:14,793 INFO L134 CoverageAnalysis]: Checked inductivity of 812 backedges. 0 proven. 406 refuted. 0 times theorem prover too weak. 406 trivial. 0 not checked. [2019-01-31 15:03:14,811 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-01-31 15:03:14,812 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [59, 31, 31] total 118 [2019-01-31 15:03:14,812 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-01-31 15:03:14,812 INFO L78 Accepts]: Start accepts. Automaton has 89 states. Word has length 60 [2019-01-31 15:03:14,813 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-01-31 15:03:14,813 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 89 states. [2019-01-31 15:03:14,897 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 92 edges. 92 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-01-31 15:03:14,897 INFO L459 AbstractCegarLoop]: Interpolant automaton has 89 states [2019-01-31 15:03:14,897 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 89 interpolants. [2019-01-31 15:03:14,898 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1858, Invalid=11948, Unknown=0, NotChecked=0, Total=13806 [2019-01-31 15:03:14,898 INFO L87 Difference]: Start difference. First operand 61 states and 62 transitions. Second operand 89 states. [2019-01-31 15:03:32,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 15:03:32,117 INFO L93 Difference]: Finished difference Result 95 states and 99 transitions. [2019-01-31 15:03:32,118 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 92 states. [2019-01-31 15:03:32,118 INFO L78 Accepts]: Start accepts. Automaton has 89 states. Word has length 60 [2019-01-31 15:03:32,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-31 15:03:32,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 89 states. [2019-01-31 15:03:32,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 99 transitions. [2019-01-31 15:03:32,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 89 states. [2019-01-31 15:03:32,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 99 transitions. [2019-01-31 15:03:32,120 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 92 states and 99 transitions. [2019-01-31 15:03:32,227 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 99 edges. 99 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-01-31 15:03:32,228 INFO L225 Difference]: With dead ends: 95 [2019-01-31 15:03:32,228 INFO L226 Difference]: Without dead ends: 63 [2019-01-31 15:03:32,229 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 210 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 149 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1828 ImplicationChecksByTransitivity, 9.5s TimeCoverageRelationStatistics Valid=2983, Invalid=19667, Unknown=0, NotChecked=0, Total=22650 [2019-01-31 15:03:32,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2019-01-31 15:03:33,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63. [2019-01-31 15:03:33,625 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-01-31 15:03:33,625 INFO L82 GeneralOperation]: Start isEquivalent. First operand 63 states. Second operand 63 states. [2019-01-31 15:03:33,625 INFO L74 IsIncluded]: Start isIncluded. First operand 63 states. Second operand 63 states. [2019-01-31 15:03:33,625 INFO L87 Difference]: Start difference. First operand 63 states. Second operand 63 states. [2019-01-31 15:03:33,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 15:03:33,626 INFO L93 Difference]: Finished difference Result 63 states and 64 transitions. [2019-01-31 15:03:33,626 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 64 transitions. [2019-01-31 15:03:33,627 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-31 15:03:33,627 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-01-31 15:03:33,627 INFO L74 IsIncluded]: Start isIncluded. First operand 63 states. Second operand 63 states. [2019-01-31 15:03:33,627 INFO L87 Difference]: Start difference. First operand 63 states. Second operand 63 states. [2019-01-31 15:03:33,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 15:03:33,628 INFO L93 Difference]: Finished difference Result 63 states and 64 transitions. [2019-01-31 15:03:33,628 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 64 transitions. [2019-01-31 15:03:33,628 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-31 15:03:33,629 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-01-31 15:03:33,629 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-01-31 15:03:33,629 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-01-31 15:03:33,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2019-01-31 15:03:33,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 64 transitions. [2019-01-31 15:03:33,630 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 64 transitions. Word has length 60 [2019-01-31 15:03:33,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-31 15:03:33,630 INFO L480 AbstractCegarLoop]: Abstraction has 63 states and 64 transitions. [2019-01-31 15:03:33,630 INFO L481 AbstractCegarLoop]: Interpolant automaton has 89 states. [2019-01-31 15:03:33,630 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 64 transitions. [2019-01-31 15:03:33,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2019-01-31 15:03:33,631 INFO L394 BasicCegarLoop]: Found error trace [2019-01-31 15:03:33,631 INFO L402 BasicCegarLoop]: trace histogram [29, 29, 1, 1, 1, 1] [2019-01-31 15:03:33,631 INFO L423 AbstractCegarLoop]: === Iteration 45 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2019-01-31 15:03:33,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-31 15:03:33,631 INFO L82 PathProgramCache]: Analyzing trace with hash -228988683, now seen corresponding path program 43 times [2019-01-31 15:03:33,631 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-01-31 15:03:33,632 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-31 15:03:33,632 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-01-31 15:03:33,632 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-31 15:03:33,632 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-01-31 15:03:33,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-31 15:03:36,180 INFO L273 TraceCheckUtils]: 0: Hoare triple {21327#true} havoc main_#res;havoc main_#t~nondet0, main_#t~nondet2, main_#t~post1, main_#t~post4, main_#t~post3, main_#t~post6, main_#t~post5, main_~MAX~6, main_~str1~6, main_~str2~6, main_~cont~6, main_~i~6, main_~j~6;main_~MAX~6 := (if main_#t~nondet0 % 4294967296 % 4294967296 <= 2147483647 then main_#t~nondet0 % 4294967296 % 4294967296 else main_#t~nondet0 % 4294967296 % 4294967296 - 4294967296);havoc main_#t~nondet0;havoc main_~str1~6;havoc main_~str2~6;havoc main_~cont~6;havoc main_~i~6;havoc main_~j~6;main_~cont~6 := 0;main_~i~6 := 0; {21329#(and (<= ULTIMATE.start_main_~i~6 0) (<= 0 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:03:36,181 INFO L273 TraceCheckUtils]: 1: Hoare triple {21329#(and (<= ULTIMATE.start_main_~i~6 0) (<= 0 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {21330#(and (<= ULTIMATE.start_main_~i~6 1) (<= 1 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:03:36,182 INFO L273 TraceCheckUtils]: 2: Hoare triple {21330#(and (<= ULTIMATE.start_main_~i~6 1) (<= 1 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {21331#(and (<= ULTIMATE.start_main_~i~6 2) (<= 2 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:03:36,183 INFO L273 TraceCheckUtils]: 3: Hoare triple {21331#(and (<= ULTIMATE.start_main_~i~6 2) (<= 2 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {21332#(and (<= 3 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 3))} is VALID [2019-01-31 15:03:36,184 INFO L273 TraceCheckUtils]: 4: Hoare triple {21332#(and (<= 3 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 3))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {21333#(and (<= ULTIMATE.start_main_~i~6 4) (<= 4 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:03:36,185 INFO L273 TraceCheckUtils]: 5: Hoare triple {21333#(and (<= ULTIMATE.start_main_~i~6 4) (<= 4 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {21334#(and (<= 5 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 5))} is VALID [2019-01-31 15:03:36,186 INFO L273 TraceCheckUtils]: 6: Hoare triple {21334#(and (<= 5 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 5))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {21335#(and (<= ULTIMATE.start_main_~i~6 6) (<= 6 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:03:36,187 INFO L273 TraceCheckUtils]: 7: Hoare triple {21335#(and (<= ULTIMATE.start_main_~i~6 6) (<= 6 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {21336#(and (<= 7 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 7))} is VALID [2019-01-31 15:03:36,188 INFO L273 TraceCheckUtils]: 8: Hoare triple {21336#(and (<= 7 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 7))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {21337#(and (<= ULTIMATE.start_main_~i~6 8) (<= 8 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:03:36,189 INFO L273 TraceCheckUtils]: 9: Hoare triple {21337#(and (<= ULTIMATE.start_main_~i~6 8) (<= 8 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {21338#(and (<= ULTIMATE.start_main_~i~6 9) (<= 9 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:03:36,190 INFO L273 TraceCheckUtils]: 10: Hoare triple {21338#(and (<= ULTIMATE.start_main_~i~6 9) (<= 9 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {21339#(and (<= ULTIMATE.start_main_~i~6 10) (<= 10 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:03:36,190 INFO L273 TraceCheckUtils]: 11: Hoare triple {21339#(and (<= ULTIMATE.start_main_~i~6 10) (<= 10 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {21340#(and (<= 11 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 11))} is VALID [2019-01-31 15:03:36,191 INFO L273 TraceCheckUtils]: 12: Hoare triple {21340#(and (<= 11 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 11))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {21341#(and (<= ULTIMATE.start_main_~i~6 12) (<= 12 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:03:36,192 INFO L273 TraceCheckUtils]: 13: Hoare triple {21341#(and (<= ULTIMATE.start_main_~i~6 12) (<= 12 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {21342#(and (<= ULTIMATE.start_main_~i~6 13) (<= 13 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:03:36,193 INFO L273 TraceCheckUtils]: 14: Hoare triple {21342#(and (<= ULTIMATE.start_main_~i~6 13) (<= 13 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {21343#(and (<= ULTIMATE.start_main_~i~6 14) (<= 14 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:03:36,194 INFO L273 TraceCheckUtils]: 15: Hoare triple {21343#(and (<= ULTIMATE.start_main_~i~6 14) (<= 14 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {21344#(and (<= 15 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 15))} is VALID [2019-01-31 15:03:36,195 INFO L273 TraceCheckUtils]: 16: Hoare triple {21344#(and (<= 15 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 15))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {21345#(and (<= 16 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 16))} is VALID [2019-01-31 15:03:36,196 INFO L273 TraceCheckUtils]: 17: Hoare triple {21345#(and (<= 16 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 16))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {21346#(and (<= ULTIMATE.start_main_~i~6 17) (<= 17 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:03:36,197 INFO L273 TraceCheckUtils]: 18: Hoare triple {21346#(and (<= ULTIMATE.start_main_~i~6 17) (<= 17 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {21347#(and (<= ULTIMATE.start_main_~i~6 18) (<= 18 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:03:36,198 INFO L273 TraceCheckUtils]: 19: Hoare triple {21347#(and (<= ULTIMATE.start_main_~i~6 18) (<= 18 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {21348#(and (<= ULTIMATE.start_main_~i~6 19) (<= 19 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:03:36,199 INFO L273 TraceCheckUtils]: 20: Hoare triple {21348#(and (<= ULTIMATE.start_main_~i~6 19) (<= 19 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {21349#(and (<= ULTIMATE.start_main_~i~6 20) (<= 20 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:03:36,200 INFO L273 TraceCheckUtils]: 21: Hoare triple {21349#(and (<= ULTIMATE.start_main_~i~6 20) (<= 20 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {21350#(and (<= ULTIMATE.start_main_~i~6 21) (<= 21 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:03:36,201 INFO L273 TraceCheckUtils]: 22: Hoare triple {21350#(and (<= ULTIMATE.start_main_~i~6 21) (<= 21 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {21351#(and (<= 22 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 22))} is VALID [2019-01-31 15:03:36,202 INFO L273 TraceCheckUtils]: 23: Hoare triple {21351#(and (<= 22 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 22))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {21352#(and (<= 23 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 23))} is VALID [2019-01-31 15:03:36,203 INFO L273 TraceCheckUtils]: 24: Hoare triple {21352#(and (<= 23 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 23))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {21353#(and (<= ULTIMATE.start_main_~i~6 24) (<= 24 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:03:36,204 INFO L273 TraceCheckUtils]: 25: Hoare triple {21353#(and (<= ULTIMATE.start_main_~i~6 24) (<= 24 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {21354#(and (<= ULTIMATE.start_main_~i~6 25) (<= 25 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:03:36,205 INFO L273 TraceCheckUtils]: 26: Hoare triple {21354#(and (<= ULTIMATE.start_main_~i~6 25) (<= 25 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {21355#(and (<= 26 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 26))} is VALID [2019-01-31 15:03:36,205 INFO L273 TraceCheckUtils]: 27: Hoare triple {21355#(and (<= 26 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 26))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {21356#(and (<= ULTIMATE.start_main_~i~6 27) (<= 27 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:03:36,206 INFO L273 TraceCheckUtils]: 28: Hoare triple {21356#(and (<= ULTIMATE.start_main_~i~6 27) (<= 27 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {21357#(or (not (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 1))) (and (<= ULTIMATE.start_main_~i~6 28) (<= 28 ULTIMATE.start_main_~i~6)))} is VALID [2019-01-31 15:03:36,208 INFO L273 TraceCheckUtils]: 29: Hoare triple {21357#(or (not (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 1))) (and (<= ULTIMATE.start_main_~i~6 28) (<= 28 ULTIMATE.start_main_~i~6)))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {21358#(or (= 29 ULTIMATE.start_main_~MAX~6) (<= (+ ULTIMATE.start_main_~i~6 1) ULTIMATE.start_main_~MAX~6))} is VALID [2019-01-31 15:03:36,209 INFO L273 TraceCheckUtils]: 30: Hoare triple {21358#(or (= 29 ULTIMATE.start_main_~MAX~6) (<= (+ ULTIMATE.start_main_~i~6 1) ULTIMATE.start_main_~MAX~6))} assume !(main_~i~6 < main_~MAX~6);main_~str1~6 := main_~str1~6[main_~MAX~6 - 1 := 0];main_~j~6 := 0;main_~i~6 := main_~MAX~6 - 1; {21359#(= (+ ULTIMATE.start_main_~j~6 29) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:03:36,210 INFO L273 TraceCheckUtils]: 31: Hoare triple {21359#(= (+ ULTIMATE.start_main_~j~6 29) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {21360#(= (+ ULTIMATE.start_main_~j~6 28) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:03:36,211 INFO L273 TraceCheckUtils]: 32: Hoare triple {21360#(= (+ ULTIMATE.start_main_~j~6 28) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {21361#(= (+ ULTIMATE.start_main_~j~6 27) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:03:36,211 INFO L273 TraceCheckUtils]: 33: Hoare triple {21361#(= (+ ULTIMATE.start_main_~j~6 27) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {21362#(= (+ ULTIMATE.start_main_~j~6 26) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:03:36,212 INFO L273 TraceCheckUtils]: 34: Hoare triple {21362#(= (+ ULTIMATE.start_main_~j~6 26) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {21363#(= (+ ULTIMATE.start_main_~j~6 25) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:03:36,213 INFO L273 TraceCheckUtils]: 35: Hoare triple {21363#(= (+ ULTIMATE.start_main_~j~6 25) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {21364#(= (+ ULTIMATE.start_main_~j~6 24) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:03:36,214 INFO L273 TraceCheckUtils]: 36: Hoare triple {21364#(= (+ ULTIMATE.start_main_~j~6 24) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {21365#(= (+ ULTIMATE.start_main_~j~6 23) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:03:36,215 INFO L273 TraceCheckUtils]: 37: Hoare triple {21365#(= (+ ULTIMATE.start_main_~j~6 23) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {21366#(= (+ ULTIMATE.start_main_~j~6 22) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:03:36,216 INFO L273 TraceCheckUtils]: 38: Hoare triple {21366#(= (+ ULTIMATE.start_main_~j~6 22) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {21367#(= (+ ULTIMATE.start_main_~j~6 21) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:03:36,217 INFO L273 TraceCheckUtils]: 39: Hoare triple {21367#(= (+ ULTIMATE.start_main_~j~6 21) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {21368#(= (+ ULTIMATE.start_main_~j~6 20) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:03:36,218 INFO L273 TraceCheckUtils]: 40: Hoare triple {21368#(= (+ ULTIMATE.start_main_~j~6 20) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {21369#(= (+ ULTIMATE.start_main_~j~6 19) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:03:36,219 INFO L273 TraceCheckUtils]: 41: Hoare triple {21369#(= (+ ULTIMATE.start_main_~j~6 19) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {21370#(= (+ ULTIMATE.start_main_~j~6 18) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:03:36,220 INFO L273 TraceCheckUtils]: 42: Hoare triple {21370#(= (+ ULTIMATE.start_main_~j~6 18) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {21371#(= (+ ULTIMATE.start_main_~j~6 17) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:03:36,221 INFO L273 TraceCheckUtils]: 43: Hoare triple {21371#(= (+ ULTIMATE.start_main_~j~6 17) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {21372#(= (+ ULTIMATE.start_main_~j~6 16) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:03:36,222 INFO L273 TraceCheckUtils]: 44: Hoare triple {21372#(= (+ ULTIMATE.start_main_~j~6 16) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {21373#(= (+ ULTIMATE.start_main_~j~6 15) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:03:36,223 INFO L273 TraceCheckUtils]: 45: Hoare triple {21373#(= (+ ULTIMATE.start_main_~j~6 15) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {21374#(= (+ ULTIMATE.start_main_~j~6 14) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:03:36,224 INFO L273 TraceCheckUtils]: 46: Hoare triple {21374#(= (+ ULTIMATE.start_main_~j~6 14) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {21375#(= (+ ULTIMATE.start_main_~j~6 13) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:03:36,225 INFO L273 TraceCheckUtils]: 47: Hoare triple {21375#(= (+ ULTIMATE.start_main_~j~6 13) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {21376#(= (+ ULTIMATE.start_main_~j~6 12) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:03:36,226 INFO L273 TraceCheckUtils]: 48: Hoare triple {21376#(= (+ ULTIMATE.start_main_~j~6 12) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {21377#(= (+ ULTIMATE.start_main_~j~6 11) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:03:36,227 INFO L273 TraceCheckUtils]: 49: Hoare triple {21377#(= (+ ULTIMATE.start_main_~j~6 11) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {21378#(= (+ ULTIMATE.start_main_~j~6 10) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:03:36,228 INFO L273 TraceCheckUtils]: 50: Hoare triple {21378#(= (+ ULTIMATE.start_main_~j~6 10) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {21379#(= (+ ULTIMATE.start_main_~j~6 9) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:03:36,228 INFO L273 TraceCheckUtils]: 51: Hoare triple {21379#(= (+ ULTIMATE.start_main_~j~6 9) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {21380#(= (+ ULTIMATE.start_main_~j~6 8) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:03:36,229 INFO L273 TraceCheckUtils]: 52: Hoare triple {21380#(= (+ ULTIMATE.start_main_~j~6 8) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {21381#(= (+ ULTIMATE.start_main_~j~6 7) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:03:36,230 INFO L273 TraceCheckUtils]: 53: Hoare triple {21381#(= (+ ULTIMATE.start_main_~j~6 7) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {21382#(= (+ ULTIMATE.start_main_~j~6 6) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:03:36,231 INFO L273 TraceCheckUtils]: 54: Hoare triple {21382#(= (+ ULTIMATE.start_main_~j~6 6) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {21383#(= (+ ULTIMATE.start_main_~j~6 5) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:03:36,232 INFO L273 TraceCheckUtils]: 55: Hoare triple {21383#(= (+ ULTIMATE.start_main_~j~6 5) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {21384#(= (+ ULTIMATE.start_main_~j~6 4) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:03:36,233 INFO L273 TraceCheckUtils]: 56: Hoare triple {21384#(= (+ ULTIMATE.start_main_~j~6 4) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {21385#(= (+ ULTIMATE.start_main_~j~6 3) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:03:36,234 INFO L273 TraceCheckUtils]: 57: Hoare triple {21385#(= (+ ULTIMATE.start_main_~j~6 3) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {21386#(= (+ ULTIMATE.start_main_~j~6 2) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:03:36,235 INFO L273 TraceCheckUtils]: 58: Hoare triple {21386#(= (+ ULTIMATE.start_main_~j~6 2) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {21387#(= (+ ULTIMATE.start_main_~j~6 1) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:03:36,236 INFO L273 TraceCheckUtils]: 59: Hoare triple {21387#(= (+ ULTIMATE.start_main_~j~6 1) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {21388#(= (select ULTIMATE.start_main_~str1~6 0) (select ULTIMATE.start_main_~str2~6 (+ ULTIMATE.start_main_~MAX~6 (- 1))))} is VALID [2019-01-31 15:03:36,237 INFO L273 TraceCheckUtils]: 60: Hoare triple {21388#(= (select ULTIMATE.start_main_~str1~6 0) (select ULTIMATE.start_main_~str2~6 (+ ULTIMATE.start_main_~MAX~6 (- 1))))} assume !(main_~i~6 >= 0);main_~j~6 := main_~MAX~6 - 1;main_~i~6 := 0;assume !!(main_~i~6 < main_~MAX~6);__VERIFIER_assert_#in~cond := (if main_~str1~6[main_~i~6] == main_~str2~6[main_~j~6] then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond;assume __VERIFIER_assert_~cond == 0;assume !false; {21328#false} is VALID [2019-01-31 15:03:36,238 INFO L273 TraceCheckUtils]: 61: Hoare triple {21328#false} assume !false; {21328#false} is VALID [2019-01-31 15:03:36,244 INFO L134 CoverageAnalysis]: Checked inductivity of 870 backedges. 0 proven. 870 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-31 15:03:36,244 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-31 15:03:36,244 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-01-31 15:03:36,244 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-01-31 15:03:36,244 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-01-31 15:03:36,245 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-31 15:03:36,245 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 44 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 44 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-01-31 15:03:36,252 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-31 15:03:36,252 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2019-01-31 15:03:36,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-31 15:03:36,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-31 15:03:36,345 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-31 15:03:39,149 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2019-01-31 15:03:39,150 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-01-31 15:03:39,157 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-31 15:03:39,157 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:15, output treesize:14 [2019-01-31 15:03:39,160 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-01-31 15:03:39,160 WARN L398 uantifierElimination]: Input elimination task: ∃ [v_ULTIMATE.start_main_~str2~6_637]. (and (<= 29 ULTIMATE.start_main_~MAX~6) (= ULTIMATE.start_main_~str2~6 (store v_ULTIMATE.start_main_~str2~6_637 28 (select ULTIMATE.start_main_~str1~6 0))) (<= ULTIMATE.start_main_~MAX~6 29)) [2019-01-31 15:03:39,160 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (and (<= 29 ULTIMATE.start_main_~MAX~6) (= (select ULTIMATE.start_main_~str2~6 28) (select ULTIMATE.start_main_~str1~6 0)) (<= ULTIMATE.start_main_~MAX~6 29)) [2019-01-31 15:03:39,252 INFO L273 TraceCheckUtils]: 0: Hoare triple {21327#true} havoc main_#res;havoc main_#t~nondet0, main_#t~nondet2, main_#t~post1, main_#t~post4, main_#t~post3, main_#t~post6, main_#t~post5, main_~MAX~6, main_~str1~6, main_~str2~6, main_~cont~6, main_~i~6, main_~j~6;main_~MAX~6 := (if main_#t~nondet0 % 4294967296 % 4294967296 <= 2147483647 then main_#t~nondet0 % 4294967296 % 4294967296 else main_#t~nondet0 % 4294967296 % 4294967296 - 4294967296);havoc main_#t~nondet0;havoc main_~str1~6;havoc main_~str2~6;havoc main_~cont~6;havoc main_~i~6;havoc main_~j~6;main_~cont~6 := 0;main_~i~6 := 0; {21329#(and (<= ULTIMATE.start_main_~i~6 0) (<= 0 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:03:39,253 INFO L273 TraceCheckUtils]: 1: Hoare triple {21329#(and (<= ULTIMATE.start_main_~i~6 0) (<= 0 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {21330#(and (<= ULTIMATE.start_main_~i~6 1) (<= 1 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:03:39,254 INFO L273 TraceCheckUtils]: 2: Hoare triple {21330#(and (<= ULTIMATE.start_main_~i~6 1) (<= 1 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {21331#(and (<= ULTIMATE.start_main_~i~6 2) (<= 2 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:03:39,255 INFO L273 TraceCheckUtils]: 3: Hoare triple {21331#(and (<= ULTIMATE.start_main_~i~6 2) (<= 2 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {21332#(and (<= 3 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 3))} is VALID [2019-01-31 15:03:39,256 INFO L273 TraceCheckUtils]: 4: Hoare triple {21332#(and (<= 3 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 3))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {21333#(and (<= ULTIMATE.start_main_~i~6 4) (<= 4 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:03:39,257 INFO L273 TraceCheckUtils]: 5: Hoare triple {21333#(and (<= ULTIMATE.start_main_~i~6 4) (<= 4 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {21334#(and (<= 5 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 5))} is VALID [2019-01-31 15:03:39,258 INFO L273 TraceCheckUtils]: 6: Hoare triple {21334#(and (<= 5 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 5))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {21335#(and (<= ULTIMATE.start_main_~i~6 6) (<= 6 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:03:39,259 INFO L273 TraceCheckUtils]: 7: Hoare triple {21335#(and (<= ULTIMATE.start_main_~i~6 6) (<= 6 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {21336#(and (<= 7 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 7))} is VALID [2019-01-31 15:03:39,260 INFO L273 TraceCheckUtils]: 8: Hoare triple {21336#(and (<= 7 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 7))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {21337#(and (<= ULTIMATE.start_main_~i~6 8) (<= 8 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:03:39,261 INFO L273 TraceCheckUtils]: 9: Hoare triple {21337#(and (<= ULTIMATE.start_main_~i~6 8) (<= 8 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {21338#(and (<= ULTIMATE.start_main_~i~6 9) (<= 9 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:03:39,262 INFO L273 TraceCheckUtils]: 10: Hoare triple {21338#(and (<= ULTIMATE.start_main_~i~6 9) (<= 9 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {21339#(and (<= ULTIMATE.start_main_~i~6 10) (<= 10 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:03:39,263 INFO L273 TraceCheckUtils]: 11: Hoare triple {21339#(and (<= ULTIMATE.start_main_~i~6 10) (<= 10 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {21340#(and (<= 11 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 11))} is VALID [2019-01-31 15:03:39,264 INFO L273 TraceCheckUtils]: 12: Hoare triple {21340#(and (<= 11 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 11))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {21341#(and (<= ULTIMATE.start_main_~i~6 12) (<= 12 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:03:39,265 INFO L273 TraceCheckUtils]: 13: Hoare triple {21341#(and (<= ULTIMATE.start_main_~i~6 12) (<= 12 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {21342#(and (<= ULTIMATE.start_main_~i~6 13) (<= 13 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:03:39,265 INFO L273 TraceCheckUtils]: 14: Hoare triple {21342#(and (<= ULTIMATE.start_main_~i~6 13) (<= 13 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {21343#(and (<= ULTIMATE.start_main_~i~6 14) (<= 14 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:03:39,266 INFO L273 TraceCheckUtils]: 15: Hoare triple {21343#(and (<= ULTIMATE.start_main_~i~6 14) (<= 14 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {21344#(and (<= 15 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 15))} is VALID [2019-01-31 15:03:39,267 INFO L273 TraceCheckUtils]: 16: Hoare triple {21344#(and (<= 15 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 15))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {21345#(and (<= 16 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 16))} is VALID [2019-01-31 15:03:39,268 INFO L273 TraceCheckUtils]: 17: Hoare triple {21345#(and (<= 16 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 16))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {21346#(and (<= ULTIMATE.start_main_~i~6 17) (<= 17 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:03:39,269 INFO L273 TraceCheckUtils]: 18: Hoare triple {21346#(and (<= ULTIMATE.start_main_~i~6 17) (<= 17 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {21347#(and (<= ULTIMATE.start_main_~i~6 18) (<= 18 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:03:39,270 INFO L273 TraceCheckUtils]: 19: Hoare triple {21347#(and (<= ULTIMATE.start_main_~i~6 18) (<= 18 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {21348#(and (<= ULTIMATE.start_main_~i~6 19) (<= 19 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:03:39,271 INFO L273 TraceCheckUtils]: 20: Hoare triple {21348#(and (<= ULTIMATE.start_main_~i~6 19) (<= 19 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {21349#(and (<= ULTIMATE.start_main_~i~6 20) (<= 20 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:03:39,272 INFO L273 TraceCheckUtils]: 21: Hoare triple {21349#(and (<= ULTIMATE.start_main_~i~6 20) (<= 20 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {21350#(and (<= ULTIMATE.start_main_~i~6 21) (<= 21 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:03:39,273 INFO L273 TraceCheckUtils]: 22: Hoare triple {21350#(and (<= ULTIMATE.start_main_~i~6 21) (<= 21 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {21351#(and (<= 22 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 22))} is VALID [2019-01-31 15:03:39,274 INFO L273 TraceCheckUtils]: 23: Hoare triple {21351#(and (<= 22 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 22))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {21352#(and (<= 23 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 23))} is VALID [2019-01-31 15:03:39,275 INFO L273 TraceCheckUtils]: 24: Hoare triple {21352#(and (<= 23 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 23))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {21353#(and (<= ULTIMATE.start_main_~i~6 24) (<= 24 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:03:39,276 INFO L273 TraceCheckUtils]: 25: Hoare triple {21353#(and (<= ULTIMATE.start_main_~i~6 24) (<= 24 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {21354#(and (<= ULTIMATE.start_main_~i~6 25) (<= 25 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:03:39,277 INFO L273 TraceCheckUtils]: 26: Hoare triple {21354#(and (<= ULTIMATE.start_main_~i~6 25) (<= 25 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {21355#(and (<= 26 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 26))} is VALID [2019-01-31 15:03:39,278 INFO L273 TraceCheckUtils]: 27: Hoare triple {21355#(and (<= 26 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 26))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {21356#(and (<= ULTIMATE.start_main_~i~6 27) (<= 27 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:03:39,279 INFO L273 TraceCheckUtils]: 28: Hoare triple {21356#(and (<= ULTIMATE.start_main_~i~6 27) (<= 27 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {21476#(and (<= ULTIMATE.start_main_~i~6 28) (<= 28 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:03:39,280 INFO L273 TraceCheckUtils]: 29: Hoare triple {21476#(and (<= ULTIMATE.start_main_~i~6 28) (<= 28 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {21480#(and (<= 29 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~i~6 29))} is VALID [2019-01-31 15:03:39,281 INFO L273 TraceCheckUtils]: 30: Hoare triple {21480#(and (<= 29 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~i~6 29))} assume !(main_~i~6 < main_~MAX~6);main_~str1~6 := main_~str1~6[main_~MAX~6 - 1 := 0];main_~j~6 := 0;main_~i~6 := main_~MAX~6 - 1; {21484#(and (<= 29 ULTIMATE.start_main_~MAX~6) (= ULTIMATE.start_main_~j~6 0) (<= ULTIMATE.start_main_~MAX~6 29))} is VALID [2019-01-31 15:03:39,281 INFO L273 TraceCheckUtils]: 31: Hoare triple {21484#(and (<= 29 ULTIMATE.start_main_~MAX~6) (= ULTIMATE.start_main_~j~6 0) (<= ULTIMATE.start_main_~MAX~6 29))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {21488#(and (<= 29 ULTIMATE.start_main_~MAX~6) (= ULTIMATE.start_main_~j~6 1) (<= ULTIMATE.start_main_~MAX~6 29))} is VALID [2019-01-31 15:03:39,282 INFO L273 TraceCheckUtils]: 32: Hoare triple {21488#(and (<= 29 ULTIMATE.start_main_~MAX~6) (= ULTIMATE.start_main_~j~6 1) (<= ULTIMATE.start_main_~MAX~6 29))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {21492#(and (<= 29 ULTIMATE.start_main_~MAX~6) (= ULTIMATE.start_main_~j~6 2) (<= ULTIMATE.start_main_~MAX~6 29))} is VALID [2019-01-31 15:03:39,283 INFO L273 TraceCheckUtils]: 33: Hoare triple {21492#(and (<= 29 ULTIMATE.start_main_~MAX~6) (= ULTIMATE.start_main_~j~6 2) (<= ULTIMATE.start_main_~MAX~6 29))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {21496#(and (<= 29 ULTIMATE.start_main_~MAX~6) (= ULTIMATE.start_main_~j~6 3) (<= ULTIMATE.start_main_~MAX~6 29))} is VALID [2019-01-31 15:03:39,284 INFO L273 TraceCheckUtils]: 34: Hoare triple {21496#(and (<= 29 ULTIMATE.start_main_~MAX~6) (= ULTIMATE.start_main_~j~6 3) (<= ULTIMATE.start_main_~MAX~6 29))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {21500#(and (<= 29 ULTIMATE.start_main_~MAX~6) (= ULTIMATE.start_main_~j~6 4) (<= ULTIMATE.start_main_~MAX~6 29))} is VALID [2019-01-31 15:03:39,285 INFO L273 TraceCheckUtils]: 35: Hoare triple {21500#(and (<= 29 ULTIMATE.start_main_~MAX~6) (= ULTIMATE.start_main_~j~6 4) (<= ULTIMATE.start_main_~MAX~6 29))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {21504#(and (<= 29 ULTIMATE.start_main_~MAX~6) (= ULTIMATE.start_main_~j~6 5) (<= ULTIMATE.start_main_~MAX~6 29))} is VALID [2019-01-31 15:03:39,285 INFO L273 TraceCheckUtils]: 36: Hoare triple {21504#(and (<= 29 ULTIMATE.start_main_~MAX~6) (= ULTIMATE.start_main_~j~6 5) (<= ULTIMATE.start_main_~MAX~6 29))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {21508#(and (<= 29 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 29) (= ULTIMATE.start_main_~j~6 6))} is VALID [2019-01-31 15:03:39,294 INFO L273 TraceCheckUtils]: 37: Hoare triple {21508#(and (<= 29 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 29) (= ULTIMATE.start_main_~j~6 6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {21512#(and (<= 29 ULTIMATE.start_main_~MAX~6) (= ULTIMATE.start_main_~j~6 7) (<= ULTIMATE.start_main_~MAX~6 29))} is VALID [2019-01-31 15:03:39,295 INFO L273 TraceCheckUtils]: 38: Hoare triple {21512#(and (<= 29 ULTIMATE.start_main_~MAX~6) (= ULTIMATE.start_main_~j~6 7) (<= ULTIMATE.start_main_~MAX~6 29))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {21516#(and (<= 29 ULTIMATE.start_main_~MAX~6) (= ULTIMATE.start_main_~j~6 8) (<= ULTIMATE.start_main_~MAX~6 29))} is VALID [2019-01-31 15:03:39,295 INFO L273 TraceCheckUtils]: 39: Hoare triple {21516#(and (<= 29 ULTIMATE.start_main_~MAX~6) (= ULTIMATE.start_main_~j~6 8) (<= ULTIMATE.start_main_~MAX~6 29))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {21520#(and (<= 29 ULTIMATE.start_main_~MAX~6) (= ULTIMATE.start_main_~j~6 9) (<= ULTIMATE.start_main_~MAX~6 29))} is VALID [2019-01-31 15:03:39,296 INFO L273 TraceCheckUtils]: 40: Hoare triple {21520#(and (<= 29 ULTIMATE.start_main_~MAX~6) (= ULTIMATE.start_main_~j~6 9) (<= ULTIMATE.start_main_~MAX~6 29))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {21524#(and (<= 29 ULTIMATE.start_main_~MAX~6) (= ULTIMATE.start_main_~j~6 10) (<= ULTIMATE.start_main_~MAX~6 29))} is VALID [2019-01-31 15:03:39,296 INFO L273 TraceCheckUtils]: 41: Hoare triple {21524#(and (<= 29 ULTIMATE.start_main_~MAX~6) (= ULTIMATE.start_main_~j~6 10) (<= ULTIMATE.start_main_~MAX~6 29))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {21528#(and (<= 29 ULTIMATE.start_main_~MAX~6) (= ULTIMATE.start_main_~j~6 11) (<= ULTIMATE.start_main_~MAX~6 29))} is VALID [2019-01-31 15:03:39,297 INFO L273 TraceCheckUtils]: 42: Hoare triple {21528#(and (<= 29 ULTIMATE.start_main_~MAX~6) (= ULTIMATE.start_main_~j~6 11) (<= ULTIMATE.start_main_~MAX~6 29))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {21532#(and (<= 29 ULTIMATE.start_main_~MAX~6) (= ULTIMATE.start_main_~j~6 12) (<= ULTIMATE.start_main_~MAX~6 29))} is VALID [2019-01-31 15:03:39,298 INFO L273 TraceCheckUtils]: 43: Hoare triple {21532#(and (<= 29 ULTIMATE.start_main_~MAX~6) (= ULTIMATE.start_main_~j~6 12) (<= ULTIMATE.start_main_~MAX~6 29))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {21536#(and (<= 29 ULTIMATE.start_main_~MAX~6) (= ULTIMATE.start_main_~j~6 13) (<= ULTIMATE.start_main_~MAX~6 29))} is VALID [2019-01-31 15:03:39,298 INFO L273 TraceCheckUtils]: 44: Hoare triple {21536#(and (<= 29 ULTIMATE.start_main_~MAX~6) (= ULTIMATE.start_main_~j~6 13) (<= ULTIMATE.start_main_~MAX~6 29))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {21540#(and (<= 29 ULTIMATE.start_main_~MAX~6) (= ULTIMATE.start_main_~j~6 14) (<= ULTIMATE.start_main_~MAX~6 29))} is VALID [2019-01-31 15:03:39,299 INFO L273 TraceCheckUtils]: 45: Hoare triple {21540#(and (<= 29 ULTIMATE.start_main_~MAX~6) (= ULTIMATE.start_main_~j~6 14) (<= ULTIMATE.start_main_~MAX~6 29))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {21544#(and (<= 29 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 29) (= ULTIMATE.start_main_~j~6 15))} is VALID [2019-01-31 15:03:39,300 INFO L273 TraceCheckUtils]: 46: Hoare triple {21544#(and (<= 29 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 29) (= ULTIMATE.start_main_~j~6 15))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {21548#(and (<= 29 ULTIMATE.start_main_~MAX~6) (= ULTIMATE.start_main_~j~6 16) (<= ULTIMATE.start_main_~MAX~6 29))} is VALID [2019-01-31 15:03:39,301 INFO L273 TraceCheckUtils]: 47: Hoare triple {21548#(and (<= 29 ULTIMATE.start_main_~MAX~6) (= ULTIMATE.start_main_~j~6 16) (<= ULTIMATE.start_main_~MAX~6 29))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {21552#(and (<= 29 ULTIMATE.start_main_~MAX~6) (= ULTIMATE.start_main_~j~6 17) (<= ULTIMATE.start_main_~MAX~6 29))} is VALID [2019-01-31 15:03:39,302 INFO L273 TraceCheckUtils]: 48: Hoare triple {21552#(and (<= 29 ULTIMATE.start_main_~MAX~6) (= ULTIMATE.start_main_~j~6 17) (<= ULTIMATE.start_main_~MAX~6 29))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {21556#(and (<= 29 ULTIMATE.start_main_~MAX~6) (= ULTIMATE.start_main_~j~6 18) (<= ULTIMATE.start_main_~MAX~6 29))} is VALID [2019-01-31 15:03:39,302 INFO L273 TraceCheckUtils]: 49: Hoare triple {21556#(and (<= 29 ULTIMATE.start_main_~MAX~6) (= ULTIMATE.start_main_~j~6 18) (<= ULTIMATE.start_main_~MAX~6 29))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {21560#(and (<= 29 ULTIMATE.start_main_~MAX~6) (= ULTIMATE.start_main_~j~6 19) (<= ULTIMATE.start_main_~MAX~6 29))} is VALID [2019-01-31 15:03:39,303 INFO L273 TraceCheckUtils]: 50: Hoare triple {21560#(and (<= 29 ULTIMATE.start_main_~MAX~6) (= ULTIMATE.start_main_~j~6 19) (<= ULTIMATE.start_main_~MAX~6 29))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {21564#(and (<= 29 ULTIMATE.start_main_~MAX~6) (= ULTIMATE.start_main_~j~6 20) (<= ULTIMATE.start_main_~MAX~6 29))} is VALID [2019-01-31 15:03:39,304 INFO L273 TraceCheckUtils]: 51: Hoare triple {21564#(and (<= 29 ULTIMATE.start_main_~MAX~6) (= ULTIMATE.start_main_~j~6 20) (<= ULTIMATE.start_main_~MAX~6 29))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {21568#(and (<= 29 ULTIMATE.start_main_~MAX~6) (= ULTIMATE.start_main_~j~6 21) (<= ULTIMATE.start_main_~MAX~6 29))} is VALID [2019-01-31 15:03:39,305 INFO L273 TraceCheckUtils]: 52: Hoare triple {21568#(and (<= 29 ULTIMATE.start_main_~MAX~6) (= ULTIMATE.start_main_~j~6 21) (<= ULTIMATE.start_main_~MAX~6 29))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {21572#(and (<= 29 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 29) (= ULTIMATE.start_main_~j~6 22))} is VALID [2019-01-31 15:03:39,306 INFO L273 TraceCheckUtils]: 53: Hoare triple {21572#(and (<= 29 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 29) (= ULTIMATE.start_main_~j~6 22))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {21576#(and (<= 29 ULTIMATE.start_main_~MAX~6) (= ULTIMATE.start_main_~j~6 23) (<= ULTIMATE.start_main_~MAX~6 29))} is VALID [2019-01-31 15:03:39,306 INFO L273 TraceCheckUtils]: 54: Hoare triple {21576#(and (<= 29 ULTIMATE.start_main_~MAX~6) (= ULTIMATE.start_main_~j~6 23) (<= ULTIMATE.start_main_~MAX~6 29))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {21580#(and (<= 29 ULTIMATE.start_main_~MAX~6) (= ULTIMATE.start_main_~j~6 24) (<= ULTIMATE.start_main_~MAX~6 29))} is VALID [2019-01-31 15:03:39,307 INFO L273 TraceCheckUtils]: 55: Hoare triple {21580#(and (<= 29 ULTIMATE.start_main_~MAX~6) (= ULTIMATE.start_main_~j~6 24) (<= ULTIMATE.start_main_~MAX~6 29))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {21584#(and (<= 29 ULTIMATE.start_main_~MAX~6) (= ULTIMATE.start_main_~j~6 25) (<= ULTIMATE.start_main_~MAX~6 29))} is VALID [2019-01-31 15:03:39,308 INFO L273 TraceCheckUtils]: 56: Hoare triple {21584#(and (<= 29 ULTIMATE.start_main_~MAX~6) (= ULTIMATE.start_main_~j~6 25) (<= ULTIMATE.start_main_~MAX~6 29))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {21588#(and (<= 29 ULTIMATE.start_main_~MAX~6) (= ULTIMATE.start_main_~j~6 26) (<= ULTIMATE.start_main_~MAX~6 29))} is VALID [2019-01-31 15:03:39,309 INFO L273 TraceCheckUtils]: 57: Hoare triple {21588#(and (<= 29 ULTIMATE.start_main_~MAX~6) (= ULTIMATE.start_main_~j~6 26) (<= ULTIMATE.start_main_~MAX~6 29))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {21592#(and (<= 29 ULTIMATE.start_main_~MAX~6) (= ULTIMATE.start_main_~j~6 27) (<= ULTIMATE.start_main_~MAX~6 29))} is VALID [2019-01-31 15:03:39,309 INFO L273 TraceCheckUtils]: 58: Hoare triple {21592#(and (<= 29 ULTIMATE.start_main_~MAX~6) (= ULTIMATE.start_main_~j~6 27) (<= ULTIMATE.start_main_~MAX~6 29))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {21596#(and (<= 29 ULTIMATE.start_main_~MAX~6) (= ULTIMATE.start_main_~j~6 28) (<= ULTIMATE.start_main_~MAX~6 29))} is VALID [2019-01-31 15:03:39,310 INFO L273 TraceCheckUtils]: 59: Hoare triple {21596#(and (<= 29 ULTIMATE.start_main_~MAX~6) (= ULTIMATE.start_main_~j~6 28) (<= ULTIMATE.start_main_~MAX~6 29))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {21600#(and (<= 29 ULTIMATE.start_main_~MAX~6) (= (select ULTIMATE.start_main_~str2~6 28) (select ULTIMATE.start_main_~str1~6 0)) (<= ULTIMATE.start_main_~MAX~6 29))} is VALID [2019-01-31 15:03:39,312 INFO L273 TraceCheckUtils]: 60: Hoare triple {21600#(and (<= 29 ULTIMATE.start_main_~MAX~6) (= (select ULTIMATE.start_main_~str2~6 28) (select ULTIMATE.start_main_~str1~6 0)) (<= ULTIMATE.start_main_~MAX~6 29))} assume !(main_~i~6 >= 0);main_~j~6 := main_~MAX~6 - 1;main_~i~6 := 0;assume !!(main_~i~6 < main_~MAX~6);__VERIFIER_assert_#in~cond := (if main_~str1~6[main_~i~6] == main_~str2~6[main_~j~6] then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond;assume __VERIFIER_assert_~cond == 0;assume !false; {21328#false} is VALID [2019-01-31 15:03:39,312 INFO L273 TraceCheckUtils]: 61: Hoare triple {21328#false} assume !false; {21328#false} is VALID [2019-01-31 15:03:39,320 INFO L134 CoverageAnalysis]: Checked inductivity of 870 backedges. 0 proven. 870 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-31 15:03:39,320 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2019-01-31 15:03:39,350 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 5 [2019-01-31 15:03:39,352 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-01-31 15:03:39,354 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-31 15:03:39,354 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:14, output treesize:5 [2019-01-31 15:03:39,356 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-01-31 15:03:39,357 WARN L398 uantifierElimination]: Input elimination task: ∀ [ULTIMATE.start_main_~str2~6, ULTIMATE.start_main_~str1~6]. (let ((.cse0 (select ULTIMATE.start_main_~str1~6 0))) (= .cse0 (select (store ULTIMATE.start_main_~str2~6 ULTIMATE.start_main_~j~6 .cse0) (+ ULTIMATE.start_main_~MAX~6 (- 1))))) [2019-01-31 15:03:39,357 WARN L399 uantifierElimination]: ElimStorePlain result: ∀ []. (= (+ ULTIMATE.start_main_~j~6 1) ULTIMATE.start_main_~MAX~6) [2019-01-31 15:03:40,356 INFO L273 TraceCheckUtils]: 61: Hoare triple {21328#false} assume !false; {21328#false} is VALID [2019-01-31 15:03:40,357 INFO L273 TraceCheckUtils]: 60: Hoare triple {21388#(= (select ULTIMATE.start_main_~str1~6 0) (select ULTIMATE.start_main_~str2~6 (+ ULTIMATE.start_main_~MAX~6 (- 1))))} assume !(main_~i~6 >= 0);main_~j~6 := main_~MAX~6 - 1;main_~i~6 := 0;assume !!(main_~i~6 < main_~MAX~6);__VERIFIER_assert_#in~cond := (if main_~str1~6[main_~i~6] == main_~str2~6[main_~j~6] then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond;assume __VERIFIER_assert_~cond == 0;assume !false; {21328#false} is VALID [2019-01-31 15:03:40,358 INFO L273 TraceCheckUtils]: 59: Hoare triple {21387#(= (+ ULTIMATE.start_main_~j~6 1) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {21388#(= (select ULTIMATE.start_main_~str1~6 0) (select ULTIMATE.start_main_~str2~6 (+ ULTIMATE.start_main_~MAX~6 (- 1))))} is VALID [2019-01-31 15:03:40,359 INFO L273 TraceCheckUtils]: 58: Hoare triple {21386#(= (+ ULTIMATE.start_main_~j~6 2) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {21387#(= (+ ULTIMATE.start_main_~j~6 1) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:03:40,360 INFO L273 TraceCheckUtils]: 57: Hoare triple {21385#(= (+ ULTIMATE.start_main_~j~6 3) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {21386#(= (+ ULTIMATE.start_main_~j~6 2) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:03:40,361 INFO L273 TraceCheckUtils]: 56: Hoare triple {21384#(= (+ ULTIMATE.start_main_~j~6 4) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {21385#(= (+ ULTIMATE.start_main_~j~6 3) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:03:40,362 INFO L273 TraceCheckUtils]: 55: Hoare triple {21383#(= (+ ULTIMATE.start_main_~j~6 5) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {21384#(= (+ ULTIMATE.start_main_~j~6 4) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:03:40,363 INFO L273 TraceCheckUtils]: 54: Hoare triple {21382#(= (+ ULTIMATE.start_main_~j~6 6) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {21383#(= (+ ULTIMATE.start_main_~j~6 5) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:03:40,364 INFO L273 TraceCheckUtils]: 53: Hoare triple {21381#(= (+ ULTIMATE.start_main_~j~6 7) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {21382#(= (+ ULTIMATE.start_main_~j~6 6) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:03:40,365 INFO L273 TraceCheckUtils]: 52: Hoare triple {21380#(= (+ ULTIMATE.start_main_~j~6 8) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {21381#(= (+ ULTIMATE.start_main_~j~6 7) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:03:40,366 INFO L273 TraceCheckUtils]: 51: Hoare triple {21379#(= (+ ULTIMATE.start_main_~j~6 9) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {21380#(= (+ ULTIMATE.start_main_~j~6 8) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:03:40,367 INFO L273 TraceCheckUtils]: 50: Hoare triple {21378#(= (+ ULTIMATE.start_main_~j~6 10) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {21379#(= (+ ULTIMATE.start_main_~j~6 9) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:03:40,368 INFO L273 TraceCheckUtils]: 49: Hoare triple {21377#(= (+ ULTIMATE.start_main_~j~6 11) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {21378#(= (+ ULTIMATE.start_main_~j~6 10) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:03:40,369 INFO L273 TraceCheckUtils]: 48: Hoare triple {21376#(= (+ ULTIMATE.start_main_~j~6 12) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {21377#(= (+ ULTIMATE.start_main_~j~6 11) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:03:40,370 INFO L273 TraceCheckUtils]: 47: Hoare triple {21375#(= (+ ULTIMATE.start_main_~j~6 13) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {21376#(= (+ ULTIMATE.start_main_~j~6 12) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:03:40,371 INFO L273 TraceCheckUtils]: 46: Hoare triple {21374#(= (+ ULTIMATE.start_main_~j~6 14) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {21375#(= (+ ULTIMATE.start_main_~j~6 13) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:03:40,372 INFO L273 TraceCheckUtils]: 45: Hoare triple {21373#(= (+ ULTIMATE.start_main_~j~6 15) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {21374#(= (+ ULTIMATE.start_main_~j~6 14) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:03:40,373 INFO L273 TraceCheckUtils]: 44: Hoare triple {21372#(= (+ ULTIMATE.start_main_~j~6 16) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {21373#(= (+ ULTIMATE.start_main_~j~6 15) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:03:40,374 INFO L273 TraceCheckUtils]: 43: Hoare triple {21371#(= (+ ULTIMATE.start_main_~j~6 17) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {21372#(= (+ ULTIMATE.start_main_~j~6 16) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:03:40,375 INFO L273 TraceCheckUtils]: 42: Hoare triple {21370#(= (+ ULTIMATE.start_main_~j~6 18) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {21371#(= (+ ULTIMATE.start_main_~j~6 17) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:03:40,376 INFO L273 TraceCheckUtils]: 41: Hoare triple {21369#(= (+ ULTIMATE.start_main_~j~6 19) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {21370#(= (+ ULTIMATE.start_main_~j~6 18) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:03:40,377 INFO L273 TraceCheckUtils]: 40: Hoare triple {21368#(= (+ ULTIMATE.start_main_~j~6 20) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {21369#(= (+ ULTIMATE.start_main_~j~6 19) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:03:40,378 INFO L273 TraceCheckUtils]: 39: Hoare triple {21367#(= (+ ULTIMATE.start_main_~j~6 21) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {21368#(= (+ ULTIMATE.start_main_~j~6 20) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:03:40,379 INFO L273 TraceCheckUtils]: 38: Hoare triple {21366#(= (+ ULTIMATE.start_main_~j~6 22) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {21367#(= (+ ULTIMATE.start_main_~j~6 21) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:03:40,379 INFO L273 TraceCheckUtils]: 37: Hoare triple {21365#(= (+ ULTIMATE.start_main_~j~6 23) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {21366#(= (+ ULTIMATE.start_main_~j~6 22) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:03:40,380 INFO L273 TraceCheckUtils]: 36: Hoare triple {21364#(= (+ ULTIMATE.start_main_~j~6 24) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {21365#(= (+ ULTIMATE.start_main_~j~6 23) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:03:40,381 INFO L273 TraceCheckUtils]: 35: Hoare triple {21363#(= (+ ULTIMATE.start_main_~j~6 25) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {21364#(= (+ ULTIMATE.start_main_~j~6 24) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:03:40,382 INFO L273 TraceCheckUtils]: 34: Hoare triple {21362#(= (+ ULTIMATE.start_main_~j~6 26) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {21363#(= (+ ULTIMATE.start_main_~j~6 25) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:03:40,383 INFO L273 TraceCheckUtils]: 33: Hoare triple {21361#(= (+ ULTIMATE.start_main_~j~6 27) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {21362#(= (+ ULTIMATE.start_main_~j~6 26) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:03:40,384 INFO L273 TraceCheckUtils]: 32: Hoare triple {21360#(= (+ ULTIMATE.start_main_~j~6 28) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {21361#(= (+ ULTIMATE.start_main_~j~6 27) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:03:40,385 INFO L273 TraceCheckUtils]: 31: Hoare triple {21359#(= (+ ULTIMATE.start_main_~j~6 29) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {21360#(= (+ ULTIMATE.start_main_~j~6 28) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:03:40,386 INFO L273 TraceCheckUtils]: 30: Hoare triple {21358#(or (= 29 ULTIMATE.start_main_~MAX~6) (<= (+ ULTIMATE.start_main_~i~6 1) ULTIMATE.start_main_~MAX~6))} assume !(main_~i~6 < main_~MAX~6);main_~str1~6 := main_~str1~6[main_~MAX~6 - 1 := 0];main_~j~6 := 0;main_~i~6 := main_~MAX~6 - 1; {21359#(= (+ ULTIMATE.start_main_~j~6 29) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:03:40,387 INFO L273 TraceCheckUtils]: 29: Hoare triple {21476#(and (<= ULTIMATE.start_main_~i~6 28) (<= 28 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {21358#(or (= 29 ULTIMATE.start_main_~MAX~6) (<= (+ ULTIMATE.start_main_~i~6 1) ULTIMATE.start_main_~MAX~6))} is VALID [2019-01-31 15:03:40,388 INFO L273 TraceCheckUtils]: 28: Hoare triple {21356#(and (<= ULTIMATE.start_main_~i~6 27) (<= 27 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {21476#(and (<= ULTIMATE.start_main_~i~6 28) (<= 28 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:03:40,389 INFO L273 TraceCheckUtils]: 27: Hoare triple {21355#(and (<= 26 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 26))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {21356#(and (<= ULTIMATE.start_main_~i~6 27) (<= 27 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:03:40,390 INFO L273 TraceCheckUtils]: 26: Hoare triple {21354#(and (<= ULTIMATE.start_main_~i~6 25) (<= 25 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {21355#(and (<= 26 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 26))} is VALID [2019-01-31 15:03:40,391 INFO L273 TraceCheckUtils]: 25: Hoare triple {21353#(and (<= ULTIMATE.start_main_~i~6 24) (<= 24 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {21354#(and (<= ULTIMATE.start_main_~i~6 25) (<= 25 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:03:40,392 INFO L273 TraceCheckUtils]: 24: Hoare triple {21352#(and (<= 23 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 23))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {21353#(and (<= ULTIMATE.start_main_~i~6 24) (<= 24 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:03:40,393 INFO L273 TraceCheckUtils]: 23: Hoare triple {21351#(and (<= 22 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 22))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {21352#(and (<= 23 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 23))} is VALID [2019-01-31 15:03:40,394 INFO L273 TraceCheckUtils]: 22: Hoare triple {21350#(and (<= ULTIMATE.start_main_~i~6 21) (<= 21 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {21351#(and (<= 22 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 22))} is VALID [2019-01-31 15:03:40,395 INFO L273 TraceCheckUtils]: 21: Hoare triple {21349#(and (<= ULTIMATE.start_main_~i~6 20) (<= 20 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {21350#(and (<= ULTIMATE.start_main_~i~6 21) (<= 21 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:03:40,395 INFO L273 TraceCheckUtils]: 20: Hoare triple {21348#(and (<= ULTIMATE.start_main_~i~6 19) (<= 19 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {21349#(and (<= ULTIMATE.start_main_~i~6 20) (<= 20 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:03:40,396 INFO L273 TraceCheckUtils]: 19: Hoare triple {21347#(and (<= ULTIMATE.start_main_~i~6 18) (<= 18 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {21348#(and (<= ULTIMATE.start_main_~i~6 19) (<= 19 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:03:40,397 INFO L273 TraceCheckUtils]: 18: Hoare triple {21346#(and (<= ULTIMATE.start_main_~i~6 17) (<= 17 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {21347#(and (<= ULTIMATE.start_main_~i~6 18) (<= 18 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:03:40,398 INFO L273 TraceCheckUtils]: 17: Hoare triple {21345#(and (<= 16 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 16))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {21346#(and (<= ULTIMATE.start_main_~i~6 17) (<= 17 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:03:40,399 INFO L273 TraceCheckUtils]: 16: Hoare triple {21344#(and (<= 15 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 15))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {21345#(and (<= 16 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 16))} is VALID [2019-01-31 15:03:40,400 INFO L273 TraceCheckUtils]: 15: Hoare triple {21343#(and (<= ULTIMATE.start_main_~i~6 14) (<= 14 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {21344#(and (<= 15 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 15))} is VALID [2019-01-31 15:03:40,401 INFO L273 TraceCheckUtils]: 14: Hoare triple {21342#(and (<= ULTIMATE.start_main_~i~6 13) (<= 13 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {21343#(and (<= ULTIMATE.start_main_~i~6 14) (<= 14 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:03:40,402 INFO L273 TraceCheckUtils]: 13: Hoare triple {21341#(and (<= ULTIMATE.start_main_~i~6 12) (<= 12 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {21342#(and (<= ULTIMATE.start_main_~i~6 13) (<= 13 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:03:40,403 INFO L273 TraceCheckUtils]: 12: Hoare triple {21340#(and (<= 11 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 11))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {21341#(and (<= ULTIMATE.start_main_~i~6 12) (<= 12 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:03:40,404 INFO L273 TraceCheckUtils]: 11: Hoare triple {21339#(and (<= ULTIMATE.start_main_~i~6 10) (<= 10 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {21340#(and (<= 11 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 11))} is VALID [2019-01-31 15:03:40,405 INFO L273 TraceCheckUtils]: 10: Hoare triple {21338#(and (<= ULTIMATE.start_main_~i~6 9) (<= 9 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {21339#(and (<= ULTIMATE.start_main_~i~6 10) (<= 10 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:03:40,406 INFO L273 TraceCheckUtils]: 9: Hoare triple {21337#(and (<= ULTIMATE.start_main_~i~6 8) (<= 8 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {21338#(and (<= ULTIMATE.start_main_~i~6 9) (<= 9 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:03:40,407 INFO L273 TraceCheckUtils]: 8: Hoare triple {21336#(and (<= 7 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 7))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {21337#(and (<= ULTIMATE.start_main_~i~6 8) (<= 8 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:03:40,408 INFO L273 TraceCheckUtils]: 7: Hoare triple {21335#(and (<= ULTIMATE.start_main_~i~6 6) (<= 6 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {21336#(and (<= 7 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 7))} is VALID [2019-01-31 15:03:40,409 INFO L273 TraceCheckUtils]: 6: Hoare triple {21334#(and (<= 5 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 5))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {21335#(and (<= ULTIMATE.start_main_~i~6 6) (<= 6 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:03:40,410 INFO L273 TraceCheckUtils]: 5: Hoare triple {21333#(and (<= ULTIMATE.start_main_~i~6 4) (<= 4 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {21334#(and (<= 5 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 5))} is VALID [2019-01-31 15:03:40,411 INFO L273 TraceCheckUtils]: 4: Hoare triple {21332#(and (<= 3 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 3))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {21333#(and (<= ULTIMATE.start_main_~i~6 4) (<= 4 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:03:40,412 INFO L273 TraceCheckUtils]: 3: Hoare triple {21331#(and (<= ULTIMATE.start_main_~i~6 2) (<= 2 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {21332#(and (<= 3 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 3))} is VALID [2019-01-31 15:03:40,412 INFO L273 TraceCheckUtils]: 2: Hoare triple {21330#(and (<= ULTIMATE.start_main_~i~6 1) (<= 1 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {21331#(and (<= ULTIMATE.start_main_~i~6 2) (<= 2 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:03:40,413 INFO L273 TraceCheckUtils]: 1: Hoare triple {21329#(and (<= ULTIMATE.start_main_~i~6 0) (<= 0 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {21330#(and (<= ULTIMATE.start_main_~i~6 1) (<= 1 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:03:40,414 INFO L273 TraceCheckUtils]: 0: Hoare triple {21327#true} havoc main_#res;havoc main_#t~nondet0, main_#t~nondet2, main_#t~post1, main_#t~post4, main_#t~post3, main_#t~post6, main_#t~post5, main_~MAX~6, main_~str1~6, main_~str2~6, main_~cont~6, main_~i~6, main_~j~6;main_~MAX~6 := (if main_#t~nondet0 % 4294967296 % 4294967296 <= 2147483647 then main_#t~nondet0 % 4294967296 % 4294967296 else main_#t~nondet0 % 4294967296 % 4294967296 - 4294967296);havoc main_#t~nondet0;havoc main_~str1~6;havoc main_~str2~6;havoc main_~cont~6;havoc main_~i~6;havoc main_~j~6;main_~cont~6 := 0;main_~i~6 := 0; {21329#(and (<= ULTIMATE.start_main_~i~6 0) (<= 0 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:03:40,420 INFO L134 CoverageAnalysis]: Checked inductivity of 870 backedges. 0 proven. 870 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-31 15:03:40,439 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-01-31 15:03:40,440 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [61, 61, 61] total 93 [2019-01-31 15:03:40,440 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-01-31 15:03:40,440 INFO L78 Accepts]: Start accepts. Automaton has 94 states. Word has length 62 [2019-01-31 15:03:40,440 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-01-31 15:03:40,440 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 94 states. [2019-01-31 15:03:40,526 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 95 edges. 95 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-01-31 15:03:40,527 INFO L459 AbstractCegarLoop]: Interpolant automaton has 94 states [2019-01-31 15:03:40,527 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 94 interpolants. [2019-01-31 15:03:40,527 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=277, Invalid=8465, Unknown=0, NotChecked=0, Total=8742 [2019-01-31 15:03:40,528 INFO L87 Difference]: Start difference. First operand 63 states and 64 transitions. Second operand 94 states. [2019-01-31 15:03:56,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 15:03:56,735 INFO L93 Difference]: Finished difference Result 96 states and 98 transitions. [2019-01-31 15:03:56,736 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2019-01-31 15:03:56,736 INFO L78 Accepts]: Start accepts. Automaton has 94 states. Word has length 62 [2019-01-31 15:03:56,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-31 15:03:56,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 94 states. [2019-01-31 15:03:56,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 70 transitions. [2019-01-31 15:03:56,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 94 states. [2019-01-31 15:03:56,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 70 transitions. [2019-01-31 15:03:56,738 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 65 states and 70 transitions. [2019-01-31 15:03:56,809 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 70 edges. 70 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-01-31 15:03:56,810 INFO L225 Difference]: With dead ends: 96 [2019-01-31 15:03:56,811 INFO L226 Difference]: Without dead ends: 64 [2019-01-31 15:03:56,812 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 215 GetRequests, 67 SyntacticMatches, 24 SemanticMatches, 124 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2625 ImplicationChecksByTransitivity, 7.5s TimeCoverageRelationStatistics Valid=586, Invalid=15164, Unknown=0, NotChecked=0, Total=15750 [2019-01-31 15:03:56,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2019-01-31 15:03:58,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 64. [2019-01-31 15:03:58,441 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-01-31 15:03:58,442 INFO L82 GeneralOperation]: Start isEquivalent. First operand 64 states. Second operand 64 states. [2019-01-31 15:03:58,442 INFO L74 IsIncluded]: Start isIncluded. First operand 64 states. Second operand 64 states. [2019-01-31 15:03:58,442 INFO L87 Difference]: Start difference. First operand 64 states. Second operand 64 states. [2019-01-31 15:03:58,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 15:03:58,443 INFO L93 Difference]: Finished difference Result 64 states and 65 transitions. [2019-01-31 15:03:58,443 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 65 transitions. [2019-01-31 15:03:58,443 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-31 15:03:58,444 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-01-31 15:03:58,444 INFO L74 IsIncluded]: Start isIncluded. First operand 64 states. Second operand 64 states. [2019-01-31 15:03:58,444 INFO L87 Difference]: Start difference. First operand 64 states. Second operand 64 states. [2019-01-31 15:03:58,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 15:03:58,445 INFO L93 Difference]: Finished difference Result 64 states and 65 transitions. [2019-01-31 15:03:58,445 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 65 transitions. [2019-01-31 15:03:58,445 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-31 15:03:58,445 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-01-31 15:03:58,445 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-01-31 15:03:58,446 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-01-31 15:03:58,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64 states. [2019-01-31 15:03:58,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 65 transitions. [2019-01-31 15:03:58,447 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 65 transitions. Word has length 62 [2019-01-31 15:03:58,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-31 15:03:58,447 INFO L480 AbstractCegarLoop]: Abstraction has 64 states and 65 transitions. [2019-01-31 15:03:58,447 INFO L481 AbstractCegarLoop]: Interpolant automaton has 94 states. [2019-01-31 15:03:58,447 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 65 transitions. [2019-01-31 15:03:58,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2019-01-31 15:03:58,447 INFO L394 BasicCegarLoop]: Found error trace [2019-01-31 15:03:58,447 INFO L402 BasicCegarLoop]: trace histogram [30, 29, 1, 1, 1, 1] [2019-01-31 15:03:58,447 INFO L423 AbstractCegarLoop]: === Iteration 46 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2019-01-31 15:03:58,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-31 15:03:58,448 INFO L82 PathProgramCache]: Analyzing trace with hash -1965001236, now seen corresponding path program 44 times [2019-01-31 15:03:58,448 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-01-31 15:03:58,448 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-31 15:03:58,448 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-31 15:03:58,448 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-31 15:03:58,448 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-01-31 15:03:58,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-31 15:03:59,442 INFO L273 TraceCheckUtils]: 0: Hoare triple {22296#true} havoc main_#res;havoc main_#t~nondet0, main_#t~nondet2, main_#t~post1, main_#t~post4, main_#t~post3, main_#t~post6, main_#t~post5, main_~MAX~6, main_~str1~6, main_~str2~6, main_~cont~6, main_~i~6, main_~j~6;main_~MAX~6 := (if main_#t~nondet0 % 4294967296 % 4294967296 <= 2147483647 then main_#t~nondet0 % 4294967296 % 4294967296 else main_#t~nondet0 % 4294967296 % 4294967296 - 4294967296);havoc main_#t~nondet0;havoc main_~str1~6;havoc main_~str2~6;havoc main_~cont~6;havoc main_~i~6;havoc main_~j~6;main_~cont~6 := 0;main_~i~6 := 0; {22298#(<= 0 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:03:59,443 INFO L273 TraceCheckUtils]: 1: Hoare triple {22298#(<= 0 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {22299#(<= 1 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:03:59,444 INFO L273 TraceCheckUtils]: 2: Hoare triple {22299#(<= 1 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {22300#(<= 2 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:03:59,445 INFO L273 TraceCheckUtils]: 3: Hoare triple {22300#(<= 2 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {22301#(<= 3 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:03:59,446 INFO L273 TraceCheckUtils]: 4: Hoare triple {22301#(<= 3 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {22302#(<= 4 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:03:59,446 INFO L273 TraceCheckUtils]: 5: Hoare triple {22302#(<= 4 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {22303#(<= 5 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:03:59,447 INFO L273 TraceCheckUtils]: 6: Hoare triple {22303#(<= 5 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {22304#(<= 6 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:03:59,448 INFO L273 TraceCheckUtils]: 7: Hoare triple {22304#(<= 6 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {22305#(<= 7 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:03:59,449 INFO L273 TraceCheckUtils]: 8: Hoare triple {22305#(<= 7 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {22306#(<= 8 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:03:59,450 INFO L273 TraceCheckUtils]: 9: Hoare triple {22306#(<= 8 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {22307#(<= 9 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:03:59,451 INFO L273 TraceCheckUtils]: 10: Hoare triple {22307#(<= 9 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {22308#(<= 10 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:03:59,452 INFO L273 TraceCheckUtils]: 11: Hoare triple {22308#(<= 10 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {22309#(<= 11 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:03:59,453 INFO L273 TraceCheckUtils]: 12: Hoare triple {22309#(<= 11 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {22310#(<= 12 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:03:59,453 INFO L273 TraceCheckUtils]: 13: Hoare triple {22310#(<= 12 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {22311#(<= 13 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:03:59,454 INFO L273 TraceCheckUtils]: 14: Hoare triple {22311#(<= 13 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {22312#(<= 14 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:03:59,455 INFO L273 TraceCheckUtils]: 15: Hoare triple {22312#(<= 14 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {22313#(<= 15 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:03:59,456 INFO L273 TraceCheckUtils]: 16: Hoare triple {22313#(<= 15 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {22314#(<= 16 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:03:59,457 INFO L273 TraceCheckUtils]: 17: Hoare triple {22314#(<= 16 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {22315#(<= 17 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:03:59,458 INFO L273 TraceCheckUtils]: 18: Hoare triple {22315#(<= 17 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {22316#(<= 18 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:03:59,459 INFO L273 TraceCheckUtils]: 19: Hoare triple {22316#(<= 18 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {22317#(<= 19 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:03:59,459 INFO L273 TraceCheckUtils]: 20: Hoare triple {22317#(<= 19 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {22318#(<= 20 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:03:59,460 INFO L273 TraceCheckUtils]: 21: Hoare triple {22318#(<= 20 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {22319#(<= 21 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:03:59,461 INFO L273 TraceCheckUtils]: 22: Hoare triple {22319#(<= 21 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {22320#(<= 22 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:03:59,462 INFO L273 TraceCheckUtils]: 23: Hoare triple {22320#(<= 22 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {22321#(<= 23 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:03:59,463 INFO L273 TraceCheckUtils]: 24: Hoare triple {22321#(<= 23 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {22322#(<= 24 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:03:59,464 INFO L273 TraceCheckUtils]: 25: Hoare triple {22322#(<= 24 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {22323#(<= 25 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:03:59,465 INFO L273 TraceCheckUtils]: 26: Hoare triple {22323#(<= 25 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {22324#(<= 26 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:03:59,466 INFO L273 TraceCheckUtils]: 27: Hoare triple {22324#(<= 26 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {22325#(<= 27 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:03:59,466 INFO L273 TraceCheckUtils]: 28: Hoare triple {22325#(<= 27 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {22326#(<= 28 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:03:59,467 INFO L273 TraceCheckUtils]: 29: Hoare triple {22326#(<= 28 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {22327#(<= 29 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:03:59,468 INFO L273 TraceCheckUtils]: 30: Hoare triple {22327#(<= 29 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {22328#(<= 30 ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:03:59,469 INFO L273 TraceCheckUtils]: 31: Hoare triple {22328#(<= 30 ULTIMATE.start_main_~MAX~6)} assume !(main_~i~6 < main_~MAX~6);main_~str1~6 := main_~str1~6[main_~MAX~6 - 1 := 0];main_~j~6 := 0;main_~i~6 := main_~MAX~6 - 1; {22327#(<= 29 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:03:59,470 INFO L273 TraceCheckUtils]: 32: Hoare triple {22327#(<= 29 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {22326#(<= 28 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:03:59,471 INFO L273 TraceCheckUtils]: 33: Hoare triple {22326#(<= 28 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {22325#(<= 27 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:03:59,472 INFO L273 TraceCheckUtils]: 34: Hoare triple {22325#(<= 27 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {22324#(<= 26 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:03:59,472 INFO L273 TraceCheckUtils]: 35: Hoare triple {22324#(<= 26 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {22323#(<= 25 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:03:59,473 INFO L273 TraceCheckUtils]: 36: Hoare triple {22323#(<= 25 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {22322#(<= 24 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:03:59,474 INFO L273 TraceCheckUtils]: 37: Hoare triple {22322#(<= 24 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {22321#(<= 23 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:03:59,475 INFO L273 TraceCheckUtils]: 38: Hoare triple {22321#(<= 23 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {22320#(<= 22 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:03:59,476 INFO L273 TraceCheckUtils]: 39: Hoare triple {22320#(<= 22 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {22319#(<= 21 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:03:59,477 INFO L273 TraceCheckUtils]: 40: Hoare triple {22319#(<= 21 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {22318#(<= 20 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:03:59,478 INFO L273 TraceCheckUtils]: 41: Hoare triple {22318#(<= 20 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {22317#(<= 19 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:03:59,478 INFO L273 TraceCheckUtils]: 42: Hoare triple {22317#(<= 19 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {22316#(<= 18 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:03:59,479 INFO L273 TraceCheckUtils]: 43: Hoare triple {22316#(<= 18 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {22315#(<= 17 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:03:59,480 INFO L273 TraceCheckUtils]: 44: Hoare triple {22315#(<= 17 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {22314#(<= 16 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:03:59,481 INFO L273 TraceCheckUtils]: 45: Hoare triple {22314#(<= 16 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {22313#(<= 15 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:03:59,482 INFO L273 TraceCheckUtils]: 46: Hoare triple {22313#(<= 15 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {22312#(<= 14 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:03:59,483 INFO L273 TraceCheckUtils]: 47: Hoare triple {22312#(<= 14 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {22311#(<= 13 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:03:59,484 INFO L273 TraceCheckUtils]: 48: Hoare triple {22311#(<= 13 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {22310#(<= 12 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:03:59,485 INFO L273 TraceCheckUtils]: 49: Hoare triple {22310#(<= 12 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {22309#(<= 11 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:03:59,485 INFO L273 TraceCheckUtils]: 50: Hoare triple {22309#(<= 11 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {22308#(<= 10 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:03:59,486 INFO L273 TraceCheckUtils]: 51: Hoare triple {22308#(<= 10 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {22307#(<= 9 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:03:59,487 INFO L273 TraceCheckUtils]: 52: Hoare triple {22307#(<= 9 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {22306#(<= 8 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:03:59,488 INFO L273 TraceCheckUtils]: 53: Hoare triple {22306#(<= 8 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {22305#(<= 7 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:03:59,489 INFO L273 TraceCheckUtils]: 54: Hoare triple {22305#(<= 7 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {22304#(<= 6 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:03:59,490 INFO L273 TraceCheckUtils]: 55: Hoare triple {22304#(<= 6 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {22303#(<= 5 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:03:59,491 INFO L273 TraceCheckUtils]: 56: Hoare triple {22303#(<= 5 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {22302#(<= 4 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:03:59,491 INFO L273 TraceCheckUtils]: 57: Hoare triple {22302#(<= 4 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {22301#(<= 3 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:03:59,492 INFO L273 TraceCheckUtils]: 58: Hoare triple {22301#(<= 3 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {22300#(<= 2 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:03:59,493 INFO L273 TraceCheckUtils]: 59: Hoare triple {22300#(<= 2 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {22299#(<= 1 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:03:59,494 INFO L273 TraceCheckUtils]: 60: Hoare triple {22299#(<= 1 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {22298#(<= 0 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:03:59,494 INFO L273 TraceCheckUtils]: 61: Hoare triple {22298#(<= 0 ULTIMATE.start_main_~i~6)} assume !(main_~i~6 >= 0);main_~j~6 := main_~MAX~6 - 1;main_~i~6 := 0;assume !!(main_~i~6 < main_~MAX~6);__VERIFIER_assert_#in~cond := (if main_~str1~6[main_~i~6] == main_~str2~6[main_~j~6] then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond;assume __VERIFIER_assert_~cond == 0;assume !false; {22297#false} is VALID [2019-01-31 15:03:59,495 INFO L273 TraceCheckUtils]: 62: Hoare triple {22297#false} assume !false; {22297#false} is VALID [2019-01-31 15:03:59,499 INFO L134 CoverageAnalysis]: Checked inductivity of 900 backedges. 435 proven. 465 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-31 15:03:59,499 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-31 15:03:59,499 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-01-31 15:03:59,499 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-01-31 15:03:59,499 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-01-31 15:03:59,499 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-31 15:03:59,499 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 45 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 45 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-01-31 15:03:59,508 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2019-01-31 15:03:59,508 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST2 (IT: FPandBP) [2019-01-31 15:03:59,655 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 16 check-sat command(s) [2019-01-31 15:03:59,655 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-01-31 15:03:59,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-31 15:03:59,683 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-31 15:03:59,991 INFO L273 TraceCheckUtils]: 0: Hoare triple {22296#true} havoc main_#res;havoc main_#t~nondet0, main_#t~nondet2, main_#t~post1, main_#t~post4, main_#t~post3, main_#t~post6, main_#t~post5, main_~MAX~6, main_~str1~6, main_~str2~6, main_~cont~6, main_~i~6, main_~j~6;main_~MAX~6 := (if main_#t~nondet0 % 4294967296 % 4294967296 <= 2147483647 then main_#t~nondet0 % 4294967296 % 4294967296 else main_#t~nondet0 % 4294967296 % 4294967296 - 4294967296);havoc main_#t~nondet0;havoc main_~str1~6;havoc main_~str2~6;havoc main_~cont~6;havoc main_~i~6;havoc main_~j~6;main_~cont~6 := 0;main_~i~6 := 0; {22298#(<= 0 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:03:59,992 INFO L273 TraceCheckUtils]: 1: Hoare triple {22298#(<= 0 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {22299#(<= 1 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:03:59,993 INFO L273 TraceCheckUtils]: 2: Hoare triple {22299#(<= 1 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {22300#(<= 2 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:03:59,994 INFO L273 TraceCheckUtils]: 3: Hoare triple {22300#(<= 2 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {22301#(<= 3 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:03:59,995 INFO L273 TraceCheckUtils]: 4: Hoare triple {22301#(<= 3 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {22302#(<= 4 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:03:59,996 INFO L273 TraceCheckUtils]: 5: Hoare triple {22302#(<= 4 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {22303#(<= 5 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:03:59,997 INFO L273 TraceCheckUtils]: 6: Hoare triple {22303#(<= 5 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {22304#(<= 6 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:03:59,997 INFO L273 TraceCheckUtils]: 7: Hoare triple {22304#(<= 6 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {22305#(<= 7 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:03:59,998 INFO L273 TraceCheckUtils]: 8: Hoare triple {22305#(<= 7 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {22306#(<= 8 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:03:59,999 INFO L273 TraceCheckUtils]: 9: Hoare triple {22306#(<= 8 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {22307#(<= 9 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:04:00,000 INFO L273 TraceCheckUtils]: 10: Hoare triple {22307#(<= 9 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {22308#(<= 10 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:04:00,001 INFO L273 TraceCheckUtils]: 11: Hoare triple {22308#(<= 10 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {22309#(<= 11 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:04:00,002 INFO L273 TraceCheckUtils]: 12: Hoare triple {22309#(<= 11 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {22310#(<= 12 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:04:00,003 INFO L273 TraceCheckUtils]: 13: Hoare triple {22310#(<= 12 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {22311#(<= 13 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:04:00,004 INFO L273 TraceCheckUtils]: 14: Hoare triple {22311#(<= 13 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {22312#(<= 14 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:04:00,004 INFO L273 TraceCheckUtils]: 15: Hoare triple {22312#(<= 14 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {22313#(<= 15 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:04:00,005 INFO L273 TraceCheckUtils]: 16: Hoare triple {22313#(<= 15 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {22314#(<= 16 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:04:00,006 INFO L273 TraceCheckUtils]: 17: Hoare triple {22314#(<= 16 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {22315#(<= 17 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:04:00,007 INFO L273 TraceCheckUtils]: 18: Hoare triple {22315#(<= 17 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {22316#(<= 18 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:04:00,008 INFO L273 TraceCheckUtils]: 19: Hoare triple {22316#(<= 18 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {22317#(<= 19 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:04:00,009 INFO L273 TraceCheckUtils]: 20: Hoare triple {22317#(<= 19 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {22318#(<= 20 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:04:00,010 INFO L273 TraceCheckUtils]: 21: Hoare triple {22318#(<= 20 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {22319#(<= 21 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:04:00,010 INFO L273 TraceCheckUtils]: 22: Hoare triple {22319#(<= 21 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {22320#(<= 22 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:04:00,011 INFO L273 TraceCheckUtils]: 23: Hoare triple {22320#(<= 22 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {22321#(<= 23 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:04:00,012 INFO L273 TraceCheckUtils]: 24: Hoare triple {22321#(<= 23 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {22322#(<= 24 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:04:00,013 INFO L273 TraceCheckUtils]: 25: Hoare triple {22322#(<= 24 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {22323#(<= 25 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:04:00,014 INFO L273 TraceCheckUtils]: 26: Hoare triple {22323#(<= 25 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {22324#(<= 26 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:04:00,015 INFO L273 TraceCheckUtils]: 27: Hoare triple {22324#(<= 26 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {22325#(<= 27 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:04:00,016 INFO L273 TraceCheckUtils]: 28: Hoare triple {22325#(<= 27 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {22326#(<= 28 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:04:00,016 INFO L273 TraceCheckUtils]: 29: Hoare triple {22326#(<= 28 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {22327#(<= 29 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:04:00,017 INFO L273 TraceCheckUtils]: 30: Hoare triple {22327#(<= 29 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {22328#(<= 30 ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:04:00,018 INFO L273 TraceCheckUtils]: 31: Hoare triple {22328#(<= 30 ULTIMATE.start_main_~MAX~6)} assume !(main_~i~6 < main_~MAX~6);main_~str1~6 := main_~str1~6[main_~MAX~6 - 1 := 0];main_~j~6 := 0;main_~i~6 := main_~MAX~6 - 1; {22327#(<= 29 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:04:00,019 INFO L273 TraceCheckUtils]: 32: Hoare triple {22327#(<= 29 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {22326#(<= 28 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:04:00,020 INFO L273 TraceCheckUtils]: 33: Hoare triple {22326#(<= 28 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {22325#(<= 27 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:04:00,021 INFO L273 TraceCheckUtils]: 34: Hoare triple {22325#(<= 27 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {22324#(<= 26 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:04:00,022 INFO L273 TraceCheckUtils]: 35: Hoare triple {22324#(<= 26 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {22323#(<= 25 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:04:00,022 INFO L273 TraceCheckUtils]: 36: Hoare triple {22323#(<= 25 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {22322#(<= 24 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:04:00,023 INFO L273 TraceCheckUtils]: 37: Hoare triple {22322#(<= 24 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {22321#(<= 23 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:04:00,024 INFO L273 TraceCheckUtils]: 38: Hoare triple {22321#(<= 23 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {22320#(<= 22 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:04:00,025 INFO L273 TraceCheckUtils]: 39: Hoare triple {22320#(<= 22 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {22319#(<= 21 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:04:00,026 INFO L273 TraceCheckUtils]: 40: Hoare triple {22319#(<= 21 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {22318#(<= 20 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:04:00,027 INFO L273 TraceCheckUtils]: 41: Hoare triple {22318#(<= 20 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {22317#(<= 19 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:04:00,028 INFO L273 TraceCheckUtils]: 42: Hoare triple {22317#(<= 19 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {22316#(<= 18 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:04:00,029 INFO L273 TraceCheckUtils]: 43: Hoare triple {22316#(<= 18 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {22315#(<= 17 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:04:00,029 INFO L273 TraceCheckUtils]: 44: Hoare triple {22315#(<= 17 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {22314#(<= 16 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:04:00,030 INFO L273 TraceCheckUtils]: 45: Hoare triple {22314#(<= 16 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {22313#(<= 15 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:04:00,031 INFO L273 TraceCheckUtils]: 46: Hoare triple {22313#(<= 15 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {22312#(<= 14 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:04:00,032 INFO L273 TraceCheckUtils]: 47: Hoare triple {22312#(<= 14 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {22311#(<= 13 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:04:00,033 INFO L273 TraceCheckUtils]: 48: Hoare triple {22311#(<= 13 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {22310#(<= 12 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:04:00,034 INFO L273 TraceCheckUtils]: 49: Hoare triple {22310#(<= 12 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {22309#(<= 11 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:04:00,035 INFO L273 TraceCheckUtils]: 50: Hoare triple {22309#(<= 11 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {22308#(<= 10 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:04:00,035 INFO L273 TraceCheckUtils]: 51: Hoare triple {22308#(<= 10 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {22307#(<= 9 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:04:00,036 INFO L273 TraceCheckUtils]: 52: Hoare triple {22307#(<= 9 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {22306#(<= 8 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:04:00,037 INFO L273 TraceCheckUtils]: 53: Hoare triple {22306#(<= 8 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {22305#(<= 7 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:04:00,038 INFO L273 TraceCheckUtils]: 54: Hoare triple {22305#(<= 7 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {22304#(<= 6 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:04:00,039 INFO L273 TraceCheckUtils]: 55: Hoare triple {22304#(<= 6 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {22303#(<= 5 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:04:00,040 INFO L273 TraceCheckUtils]: 56: Hoare triple {22303#(<= 5 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {22302#(<= 4 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:04:00,041 INFO L273 TraceCheckUtils]: 57: Hoare triple {22302#(<= 4 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {22301#(<= 3 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:04:00,041 INFO L273 TraceCheckUtils]: 58: Hoare triple {22301#(<= 3 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {22300#(<= 2 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:04:00,042 INFO L273 TraceCheckUtils]: 59: Hoare triple {22300#(<= 2 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {22299#(<= 1 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:04:00,043 INFO L273 TraceCheckUtils]: 60: Hoare triple {22299#(<= 1 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {22298#(<= 0 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:04:00,044 INFO L273 TraceCheckUtils]: 61: Hoare triple {22298#(<= 0 ULTIMATE.start_main_~i~6)} assume !(main_~i~6 >= 0);main_~j~6 := main_~MAX~6 - 1;main_~i~6 := 0;assume !!(main_~i~6 < main_~MAX~6);__VERIFIER_assert_#in~cond := (if main_~str1~6[main_~i~6] == main_~str2~6[main_~j~6] then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond;assume __VERIFIER_assert_~cond == 0;assume !false; {22297#false} is VALID [2019-01-31 15:04:00,044 INFO L273 TraceCheckUtils]: 62: Hoare triple {22297#false} assume !false; {22297#false} is VALID [2019-01-31 15:04:00,048 INFO L134 CoverageAnalysis]: Checked inductivity of 900 backedges. 435 proven. 465 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-31 15:04:00,048 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2019-01-31 15:04:01,235 INFO L273 TraceCheckUtils]: 62: Hoare triple {22297#false} assume !false; {22297#false} is VALID [2019-01-31 15:04:01,235 INFO L273 TraceCheckUtils]: 61: Hoare triple {22298#(<= 0 ULTIMATE.start_main_~i~6)} assume !(main_~i~6 >= 0);main_~j~6 := main_~MAX~6 - 1;main_~i~6 := 0;assume !!(main_~i~6 < main_~MAX~6);__VERIFIER_assert_#in~cond := (if main_~str1~6[main_~i~6] == main_~str2~6[main_~j~6] then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond;assume __VERIFIER_assert_~cond == 0;assume !false; {22297#false} is VALID [2019-01-31 15:04:01,236 INFO L273 TraceCheckUtils]: 60: Hoare triple {22299#(<= 1 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {22298#(<= 0 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:04:01,237 INFO L273 TraceCheckUtils]: 59: Hoare triple {22300#(<= 2 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {22299#(<= 1 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:04:01,238 INFO L273 TraceCheckUtils]: 58: Hoare triple {22301#(<= 3 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {22300#(<= 2 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:04:01,239 INFO L273 TraceCheckUtils]: 57: Hoare triple {22302#(<= 4 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {22301#(<= 3 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:04:01,240 INFO L273 TraceCheckUtils]: 56: Hoare triple {22303#(<= 5 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {22302#(<= 4 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:04:01,241 INFO L273 TraceCheckUtils]: 55: Hoare triple {22304#(<= 6 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {22303#(<= 5 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:04:01,241 INFO L273 TraceCheckUtils]: 54: Hoare triple {22305#(<= 7 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {22304#(<= 6 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:04:01,242 INFO L273 TraceCheckUtils]: 53: Hoare triple {22306#(<= 8 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {22305#(<= 7 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:04:01,243 INFO L273 TraceCheckUtils]: 52: Hoare triple {22307#(<= 9 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {22306#(<= 8 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:04:01,244 INFO L273 TraceCheckUtils]: 51: Hoare triple {22308#(<= 10 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {22307#(<= 9 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:04:01,245 INFO L273 TraceCheckUtils]: 50: Hoare triple {22309#(<= 11 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {22308#(<= 10 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:04:01,246 INFO L273 TraceCheckUtils]: 49: Hoare triple {22310#(<= 12 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {22309#(<= 11 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:04:01,247 INFO L273 TraceCheckUtils]: 48: Hoare triple {22311#(<= 13 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {22310#(<= 12 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:04:01,247 INFO L273 TraceCheckUtils]: 47: Hoare triple {22312#(<= 14 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {22311#(<= 13 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:04:01,248 INFO L273 TraceCheckUtils]: 46: Hoare triple {22313#(<= 15 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {22312#(<= 14 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:04:01,249 INFO L273 TraceCheckUtils]: 45: Hoare triple {22314#(<= 16 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {22313#(<= 15 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:04:01,250 INFO L273 TraceCheckUtils]: 44: Hoare triple {22315#(<= 17 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {22314#(<= 16 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:04:01,251 INFO L273 TraceCheckUtils]: 43: Hoare triple {22316#(<= 18 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {22315#(<= 17 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:04:01,252 INFO L273 TraceCheckUtils]: 42: Hoare triple {22317#(<= 19 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {22316#(<= 18 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:04:01,253 INFO L273 TraceCheckUtils]: 41: Hoare triple {22318#(<= 20 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {22317#(<= 19 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:04:01,253 INFO L273 TraceCheckUtils]: 40: Hoare triple {22319#(<= 21 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {22318#(<= 20 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:04:01,254 INFO L273 TraceCheckUtils]: 39: Hoare triple {22320#(<= 22 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {22319#(<= 21 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:04:01,255 INFO L273 TraceCheckUtils]: 38: Hoare triple {22321#(<= 23 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {22320#(<= 22 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:04:01,256 INFO L273 TraceCheckUtils]: 37: Hoare triple {22322#(<= 24 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {22321#(<= 23 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:04:01,257 INFO L273 TraceCheckUtils]: 36: Hoare triple {22323#(<= 25 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {22322#(<= 24 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:04:01,258 INFO L273 TraceCheckUtils]: 35: Hoare triple {22324#(<= 26 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {22323#(<= 25 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:04:01,259 INFO L273 TraceCheckUtils]: 34: Hoare triple {22325#(<= 27 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {22324#(<= 26 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:04:01,259 INFO L273 TraceCheckUtils]: 33: Hoare triple {22326#(<= 28 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {22325#(<= 27 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:04:01,260 INFO L273 TraceCheckUtils]: 32: Hoare triple {22327#(<= 29 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {22326#(<= 28 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:04:01,261 INFO L273 TraceCheckUtils]: 31: Hoare triple {22328#(<= 30 ULTIMATE.start_main_~MAX~6)} assume !(main_~i~6 < main_~MAX~6);main_~str1~6 := main_~str1~6[main_~MAX~6 - 1 := 0];main_~j~6 := 0;main_~i~6 := main_~MAX~6 - 1; {22327#(<= 29 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:04:01,262 INFO L273 TraceCheckUtils]: 30: Hoare triple {22327#(<= 29 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {22328#(<= 30 ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:04:01,263 INFO L273 TraceCheckUtils]: 29: Hoare triple {22326#(<= 28 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {22327#(<= 29 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:04:01,264 INFO L273 TraceCheckUtils]: 28: Hoare triple {22325#(<= 27 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {22326#(<= 28 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:04:01,265 INFO L273 TraceCheckUtils]: 27: Hoare triple {22324#(<= 26 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {22325#(<= 27 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:04:01,266 INFO L273 TraceCheckUtils]: 26: Hoare triple {22323#(<= 25 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {22324#(<= 26 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:04:01,266 INFO L273 TraceCheckUtils]: 25: Hoare triple {22322#(<= 24 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {22323#(<= 25 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:04:01,267 INFO L273 TraceCheckUtils]: 24: Hoare triple {22321#(<= 23 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {22322#(<= 24 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:04:01,268 INFO L273 TraceCheckUtils]: 23: Hoare triple {22320#(<= 22 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {22321#(<= 23 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:04:01,269 INFO L273 TraceCheckUtils]: 22: Hoare triple {22319#(<= 21 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {22320#(<= 22 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:04:01,270 INFO L273 TraceCheckUtils]: 21: Hoare triple {22318#(<= 20 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {22319#(<= 21 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:04:01,271 INFO L273 TraceCheckUtils]: 20: Hoare triple {22317#(<= 19 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {22318#(<= 20 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:04:01,272 INFO L273 TraceCheckUtils]: 19: Hoare triple {22316#(<= 18 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {22317#(<= 19 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:04:01,272 INFO L273 TraceCheckUtils]: 18: Hoare triple {22315#(<= 17 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {22316#(<= 18 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:04:01,273 INFO L273 TraceCheckUtils]: 17: Hoare triple {22314#(<= 16 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {22315#(<= 17 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:04:01,274 INFO L273 TraceCheckUtils]: 16: Hoare triple {22313#(<= 15 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {22314#(<= 16 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:04:01,275 INFO L273 TraceCheckUtils]: 15: Hoare triple {22312#(<= 14 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {22313#(<= 15 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:04:01,276 INFO L273 TraceCheckUtils]: 14: Hoare triple {22311#(<= 13 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {22312#(<= 14 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:04:01,277 INFO L273 TraceCheckUtils]: 13: Hoare triple {22310#(<= 12 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {22311#(<= 13 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:04:01,278 INFO L273 TraceCheckUtils]: 12: Hoare triple {22309#(<= 11 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {22310#(<= 12 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:04:01,278 INFO L273 TraceCheckUtils]: 11: Hoare triple {22308#(<= 10 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {22309#(<= 11 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:04:01,279 INFO L273 TraceCheckUtils]: 10: Hoare triple {22307#(<= 9 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {22308#(<= 10 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:04:01,280 INFO L273 TraceCheckUtils]: 9: Hoare triple {22306#(<= 8 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {22307#(<= 9 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:04:01,281 INFO L273 TraceCheckUtils]: 8: Hoare triple {22305#(<= 7 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {22306#(<= 8 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:04:01,282 INFO L273 TraceCheckUtils]: 7: Hoare triple {22304#(<= 6 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {22305#(<= 7 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:04:01,283 INFO L273 TraceCheckUtils]: 6: Hoare triple {22303#(<= 5 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {22304#(<= 6 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:04:01,284 INFO L273 TraceCheckUtils]: 5: Hoare triple {22302#(<= 4 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {22303#(<= 5 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:04:01,284 INFO L273 TraceCheckUtils]: 4: Hoare triple {22301#(<= 3 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {22302#(<= 4 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:04:01,285 INFO L273 TraceCheckUtils]: 3: Hoare triple {22300#(<= 2 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {22301#(<= 3 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:04:01,286 INFO L273 TraceCheckUtils]: 2: Hoare triple {22299#(<= 1 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {22300#(<= 2 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:04:01,287 INFO L273 TraceCheckUtils]: 1: Hoare triple {22298#(<= 0 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {22299#(<= 1 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:04:01,288 INFO L273 TraceCheckUtils]: 0: Hoare triple {22296#true} havoc main_#res;havoc main_#t~nondet0, main_#t~nondet2, main_#t~post1, main_#t~post4, main_#t~post3, main_#t~post6, main_#t~post5, main_~MAX~6, main_~str1~6, main_~str2~6, main_~cont~6, main_~i~6, main_~j~6;main_~MAX~6 := (if main_#t~nondet0 % 4294967296 % 4294967296 <= 2147483647 then main_#t~nondet0 % 4294967296 % 4294967296 else main_#t~nondet0 % 4294967296 % 4294967296 - 4294967296);havoc main_#t~nondet0;havoc main_~str1~6;havoc main_~str2~6;havoc main_~cont~6;havoc main_~i~6;havoc main_~j~6;main_~cont~6 := 0;main_~i~6 := 0; {22298#(<= 0 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:04:01,292 INFO L134 CoverageAnalysis]: Checked inductivity of 900 backedges. 435 proven. 465 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-31 15:04:01,312 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-01-31 15:04:01,312 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [32, 32, 32] total 32 [2019-01-31 15:04:01,312 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-01-31 15:04:01,312 INFO L78 Accepts]: Start accepts. Automaton has 33 states. Word has length 63 [2019-01-31 15:04:01,312 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-01-31 15:04:01,312 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 33 states. [2019-01-31 15:04:01,385 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 63 edges. 63 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-01-31 15:04:01,385 INFO L459 AbstractCegarLoop]: Interpolant automaton has 33 states [2019-01-31 15:04:01,385 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2019-01-31 15:04:01,385 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=498, Invalid=558, Unknown=0, NotChecked=0, Total=1056 [2019-01-31 15:04:01,386 INFO L87 Difference]: Start difference. First operand 64 states and 65 transitions. Second operand 33 states. [2019-01-31 15:04:03,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 15:04:03,963 INFO L93 Difference]: Finished difference Result 67 states and 68 transitions. [2019-01-31 15:04:03,963 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2019-01-31 15:04:03,963 INFO L78 Accepts]: Start accepts. Automaton has 33 states. Word has length 63 [2019-01-31 15:04:03,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-31 15:04:03,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2019-01-31 15:04:03,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 68 transitions. [2019-01-31 15:04:03,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2019-01-31 15:04:03,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 68 transitions. [2019-01-31 15:04:03,965 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 63 states and 68 transitions. [2019-01-31 15:04:04,033 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 68 edges. 68 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-01-31 15:04:04,034 INFO L225 Difference]: With dead ends: 67 [2019-01-31 15:04:04,034 INFO L226 Difference]: Without dead ends: 65 [2019-01-31 15:04:04,035 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 216 GetRequests, 95 SyntacticMatches, 60 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1740 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=1488, Invalid=2418, Unknown=0, NotChecked=0, Total=3906 [2019-01-31 15:04:04,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2019-01-31 15:04:05,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 65. [2019-01-31 15:04:05,546 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-01-31 15:04:05,546 INFO L82 GeneralOperation]: Start isEquivalent. First operand 65 states. Second operand 65 states. [2019-01-31 15:04:05,546 INFO L74 IsIncluded]: Start isIncluded. First operand 65 states. Second operand 65 states. [2019-01-31 15:04:05,546 INFO L87 Difference]: Start difference. First operand 65 states. Second operand 65 states. [2019-01-31 15:04:05,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 15:04:05,547 INFO L93 Difference]: Finished difference Result 65 states and 66 transitions. [2019-01-31 15:04:05,548 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 66 transitions. [2019-01-31 15:04:05,548 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-31 15:04:05,548 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-01-31 15:04:05,548 INFO L74 IsIncluded]: Start isIncluded. First operand 65 states. Second operand 65 states. [2019-01-31 15:04:05,548 INFO L87 Difference]: Start difference. First operand 65 states. Second operand 65 states. [2019-01-31 15:04:05,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 15:04:05,549 INFO L93 Difference]: Finished difference Result 65 states and 66 transitions. [2019-01-31 15:04:05,549 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 66 transitions. [2019-01-31 15:04:05,549 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-31 15:04:05,549 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-01-31 15:04:05,549 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-01-31 15:04:05,549 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-01-31 15:04:05,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states. [2019-01-31 15:04:05,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 66 transitions. [2019-01-31 15:04:05,550 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 66 transitions. Word has length 63 [2019-01-31 15:04:05,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-31 15:04:05,550 INFO L480 AbstractCegarLoop]: Abstraction has 65 states and 66 transitions. [2019-01-31 15:04:05,550 INFO L481 AbstractCegarLoop]: Interpolant automaton has 33 states. [2019-01-31 15:04:05,550 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 66 transitions. [2019-01-31 15:04:05,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2019-01-31 15:04:05,551 INFO L394 BasicCegarLoop]: Found error trace [2019-01-31 15:04:05,551 INFO L402 BasicCegarLoop]: trace histogram [30, 30, 1, 1, 1, 1] [2019-01-31 15:04:05,551 INFO L423 AbstractCegarLoop]: === Iteration 47 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2019-01-31 15:04:05,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-31 15:04:05,551 INFO L82 PathProgramCache]: Analyzing trace with hash -785494358, now seen corresponding path program 45 times [2019-01-31 15:04:05,551 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-01-31 15:04:05,552 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-31 15:04:05,552 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-01-31 15:04:05,552 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-31 15:04:05,552 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-01-31 15:04:05,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-31 15:04:08,199 INFO L273 TraceCheckUtils]: 0: Hoare triple {23152#true} havoc main_#res;havoc main_#t~nondet0, main_#t~nondet2, main_#t~post1, main_#t~post4, main_#t~post3, main_#t~post6, main_#t~post5, main_~MAX~6, main_~str1~6, main_~str2~6, main_~cont~6, main_~i~6, main_~j~6;main_~MAX~6 := (if main_#t~nondet0 % 4294967296 % 4294967296 <= 2147483647 then main_#t~nondet0 % 4294967296 % 4294967296 else main_#t~nondet0 % 4294967296 % 4294967296 - 4294967296);havoc main_#t~nondet0;havoc main_~str1~6;havoc main_~str2~6;havoc main_~cont~6;havoc main_~i~6;havoc main_~j~6;main_~cont~6 := 0;main_~i~6 := 0; {23154#(and (<= ULTIMATE.start_main_~i~6 0) (<= 0 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:04:08,200 INFO L273 TraceCheckUtils]: 1: Hoare triple {23154#(and (<= ULTIMATE.start_main_~i~6 0) (<= 0 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {23155#(and (<= ULTIMATE.start_main_~i~6 1) (<= 1 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:04:08,201 INFO L273 TraceCheckUtils]: 2: Hoare triple {23155#(and (<= ULTIMATE.start_main_~i~6 1) (<= 1 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {23156#(and (<= ULTIMATE.start_main_~i~6 2) (<= 2 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:04:08,202 INFO L273 TraceCheckUtils]: 3: Hoare triple {23156#(and (<= ULTIMATE.start_main_~i~6 2) (<= 2 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {23157#(and (<= 3 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 3))} is VALID [2019-01-31 15:04:08,203 INFO L273 TraceCheckUtils]: 4: Hoare triple {23157#(and (<= 3 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 3))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {23158#(and (<= ULTIMATE.start_main_~i~6 4) (<= 4 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:04:08,204 INFO L273 TraceCheckUtils]: 5: Hoare triple {23158#(and (<= ULTIMATE.start_main_~i~6 4) (<= 4 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {23159#(and (<= 5 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 5))} is VALID [2019-01-31 15:04:08,205 INFO L273 TraceCheckUtils]: 6: Hoare triple {23159#(and (<= 5 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 5))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {23160#(and (<= ULTIMATE.start_main_~i~6 6) (<= 6 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:04:08,206 INFO L273 TraceCheckUtils]: 7: Hoare triple {23160#(and (<= ULTIMATE.start_main_~i~6 6) (<= 6 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {23161#(and (<= 7 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 7))} is VALID [2019-01-31 15:04:08,207 INFO L273 TraceCheckUtils]: 8: Hoare triple {23161#(and (<= 7 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 7))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {23162#(and (<= ULTIMATE.start_main_~i~6 8) (<= 8 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:04:08,208 INFO L273 TraceCheckUtils]: 9: Hoare triple {23162#(and (<= ULTIMATE.start_main_~i~6 8) (<= 8 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {23163#(and (<= ULTIMATE.start_main_~i~6 9) (<= 9 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:04:08,209 INFO L273 TraceCheckUtils]: 10: Hoare triple {23163#(and (<= ULTIMATE.start_main_~i~6 9) (<= 9 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {23164#(and (<= ULTIMATE.start_main_~i~6 10) (<= 10 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:04:08,210 INFO L273 TraceCheckUtils]: 11: Hoare triple {23164#(and (<= ULTIMATE.start_main_~i~6 10) (<= 10 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {23165#(and (<= 11 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 11))} is VALID [2019-01-31 15:04:08,211 INFO L273 TraceCheckUtils]: 12: Hoare triple {23165#(and (<= 11 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 11))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {23166#(and (<= ULTIMATE.start_main_~i~6 12) (<= 12 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:04:08,212 INFO L273 TraceCheckUtils]: 13: Hoare triple {23166#(and (<= ULTIMATE.start_main_~i~6 12) (<= 12 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {23167#(and (<= ULTIMATE.start_main_~i~6 13) (<= 13 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:04:08,213 INFO L273 TraceCheckUtils]: 14: Hoare triple {23167#(and (<= ULTIMATE.start_main_~i~6 13) (<= 13 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {23168#(and (<= ULTIMATE.start_main_~i~6 14) (<= 14 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:04:08,214 INFO L273 TraceCheckUtils]: 15: Hoare triple {23168#(and (<= ULTIMATE.start_main_~i~6 14) (<= 14 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {23169#(and (<= 15 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 15))} is VALID [2019-01-31 15:04:08,215 INFO L273 TraceCheckUtils]: 16: Hoare triple {23169#(and (<= 15 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 15))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {23170#(and (<= 16 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 16))} is VALID [2019-01-31 15:04:08,215 INFO L273 TraceCheckUtils]: 17: Hoare triple {23170#(and (<= 16 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 16))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {23171#(and (<= ULTIMATE.start_main_~i~6 17) (<= 17 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:04:08,216 INFO L273 TraceCheckUtils]: 18: Hoare triple {23171#(and (<= ULTIMATE.start_main_~i~6 17) (<= 17 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {23172#(and (<= ULTIMATE.start_main_~i~6 18) (<= 18 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:04:08,217 INFO L273 TraceCheckUtils]: 19: Hoare triple {23172#(and (<= ULTIMATE.start_main_~i~6 18) (<= 18 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {23173#(and (<= ULTIMATE.start_main_~i~6 19) (<= 19 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:04:08,218 INFO L273 TraceCheckUtils]: 20: Hoare triple {23173#(and (<= ULTIMATE.start_main_~i~6 19) (<= 19 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {23174#(and (<= ULTIMATE.start_main_~i~6 20) (<= 20 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:04:08,219 INFO L273 TraceCheckUtils]: 21: Hoare triple {23174#(and (<= ULTIMATE.start_main_~i~6 20) (<= 20 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {23175#(and (<= ULTIMATE.start_main_~i~6 21) (<= 21 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:04:08,220 INFO L273 TraceCheckUtils]: 22: Hoare triple {23175#(and (<= ULTIMATE.start_main_~i~6 21) (<= 21 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {23176#(and (<= 22 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 22))} is VALID [2019-01-31 15:04:08,221 INFO L273 TraceCheckUtils]: 23: Hoare triple {23176#(and (<= 22 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 22))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {23177#(and (<= 23 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 23))} is VALID [2019-01-31 15:04:08,222 INFO L273 TraceCheckUtils]: 24: Hoare triple {23177#(and (<= 23 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 23))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {23178#(and (<= ULTIMATE.start_main_~i~6 24) (<= 24 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:04:08,223 INFO L273 TraceCheckUtils]: 25: Hoare triple {23178#(and (<= ULTIMATE.start_main_~i~6 24) (<= 24 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {23179#(and (<= ULTIMATE.start_main_~i~6 25) (<= 25 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:04:08,224 INFO L273 TraceCheckUtils]: 26: Hoare triple {23179#(and (<= ULTIMATE.start_main_~i~6 25) (<= 25 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {23180#(and (<= 26 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 26))} is VALID [2019-01-31 15:04:08,225 INFO L273 TraceCheckUtils]: 27: Hoare triple {23180#(and (<= 26 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 26))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {23181#(and (<= ULTIMATE.start_main_~i~6 27) (<= 27 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:04:08,226 INFO L273 TraceCheckUtils]: 28: Hoare triple {23181#(and (<= ULTIMATE.start_main_~i~6 27) (<= 27 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {23182#(and (<= ULTIMATE.start_main_~i~6 28) (<= 28 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:04:08,227 INFO L273 TraceCheckUtils]: 29: Hoare triple {23182#(and (<= ULTIMATE.start_main_~i~6 28) (<= 28 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {23183#(or (not (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 1))) (and (<= 29 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 29)))} is VALID [2019-01-31 15:04:08,228 INFO L273 TraceCheckUtils]: 30: Hoare triple {23183#(or (not (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 1))) (and (<= 29 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 29)))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {23184#(or (<= (+ ULTIMATE.start_main_~i~6 1) ULTIMATE.start_main_~MAX~6) (= 30 ULTIMATE.start_main_~MAX~6))} is VALID [2019-01-31 15:04:08,229 INFO L273 TraceCheckUtils]: 31: Hoare triple {23184#(or (<= (+ ULTIMATE.start_main_~i~6 1) ULTIMATE.start_main_~MAX~6) (= 30 ULTIMATE.start_main_~MAX~6))} assume !(main_~i~6 < main_~MAX~6);main_~str1~6 := main_~str1~6[main_~MAX~6 - 1 := 0];main_~j~6 := 0;main_~i~6 := main_~MAX~6 - 1; {23185#(= (+ ULTIMATE.start_main_~j~6 30) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:04:08,230 INFO L273 TraceCheckUtils]: 32: Hoare triple {23185#(= (+ ULTIMATE.start_main_~j~6 30) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {23186#(= (+ ULTIMATE.start_main_~j~6 29) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:04:08,231 INFO L273 TraceCheckUtils]: 33: Hoare triple {23186#(= (+ ULTIMATE.start_main_~j~6 29) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {23187#(= (+ ULTIMATE.start_main_~j~6 28) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:04:08,232 INFO L273 TraceCheckUtils]: 34: Hoare triple {23187#(= (+ ULTIMATE.start_main_~j~6 28) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {23188#(= (+ ULTIMATE.start_main_~j~6 27) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:04:08,233 INFO L273 TraceCheckUtils]: 35: Hoare triple {23188#(= (+ ULTIMATE.start_main_~j~6 27) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {23189#(= (+ ULTIMATE.start_main_~j~6 26) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:04:08,234 INFO L273 TraceCheckUtils]: 36: Hoare triple {23189#(= (+ ULTIMATE.start_main_~j~6 26) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {23190#(= (+ ULTIMATE.start_main_~j~6 25) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:04:08,238 INFO L273 TraceCheckUtils]: 37: Hoare triple {23190#(= (+ ULTIMATE.start_main_~j~6 25) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {23191#(= (+ ULTIMATE.start_main_~j~6 24) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:04:08,239 INFO L273 TraceCheckUtils]: 38: Hoare triple {23191#(= (+ ULTIMATE.start_main_~j~6 24) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {23192#(= (+ ULTIMATE.start_main_~j~6 23) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:04:08,239 INFO L273 TraceCheckUtils]: 39: Hoare triple {23192#(= (+ ULTIMATE.start_main_~j~6 23) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {23193#(= (+ ULTIMATE.start_main_~j~6 22) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:04:08,240 INFO L273 TraceCheckUtils]: 40: Hoare triple {23193#(= (+ ULTIMATE.start_main_~j~6 22) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {23194#(= (+ ULTIMATE.start_main_~j~6 21) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:04:08,241 INFO L273 TraceCheckUtils]: 41: Hoare triple {23194#(= (+ ULTIMATE.start_main_~j~6 21) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {23195#(= (+ ULTIMATE.start_main_~j~6 20) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:04:08,241 INFO L273 TraceCheckUtils]: 42: Hoare triple {23195#(= (+ ULTIMATE.start_main_~j~6 20) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {23196#(= (+ ULTIMATE.start_main_~j~6 19) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:04:08,242 INFO L273 TraceCheckUtils]: 43: Hoare triple {23196#(= (+ ULTIMATE.start_main_~j~6 19) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {23197#(= (+ ULTIMATE.start_main_~j~6 18) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:04:08,243 INFO L273 TraceCheckUtils]: 44: Hoare triple {23197#(= (+ ULTIMATE.start_main_~j~6 18) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {23198#(= (+ ULTIMATE.start_main_~j~6 17) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:04:08,244 INFO L273 TraceCheckUtils]: 45: Hoare triple {23198#(= (+ ULTIMATE.start_main_~j~6 17) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {23199#(= (+ ULTIMATE.start_main_~j~6 16) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:04:08,245 INFO L273 TraceCheckUtils]: 46: Hoare triple {23199#(= (+ ULTIMATE.start_main_~j~6 16) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {23200#(= (+ ULTIMATE.start_main_~j~6 15) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:04:08,246 INFO L273 TraceCheckUtils]: 47: Hoare triple {23200#(= (+ ULTIMATE.start_main_~j~6 15) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {23201#(= (+ ULTIMATE.start_main_~j~6 14) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:04:08,246 INFO L273 TraceCheckUtils]: 48: Hoare triple {23201#(= (+ ULTIMATE.start_main_~j~6 14) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {23202#(= (+ ULTIMATE.start_main_~j~6 13) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:04:08,247 INFO L273 TraceCheckUtils]: 49: Hoare triple {23202#(= (+ ULTIMATE.start_main_~j~6 13) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {23203#(= (+ ULTIMATE.start_main_~j~6 12) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:04:08,248 INFO L273 TraceCheckUtils]: 50: Hoare triple {23203#(= (+ ULTIMATE.start_main_~j~6 12) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {23204#(= (+ ULTIMATE.start_main_~j~6 11) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:04:08,249 INFO L273 TraceCheckUtils]: 51: Hoare triple {23204#(= (+ ULTIMATE.start_main_~j~6 11) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {23205#(= (+ ULTIMATE.start_main_~j~6 10) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:04:08,250 INFO L273 TraceCheckUtils]: 52: Hoare triple {23205#(= (+ ULTIMATE.start_main_~j~6 10) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {23206#(= (+ ULTIMATE.start_main_~j~6 9) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:04:08,251 INFO L273 TraceCheckUtils]: 53: Hoare triple {23206#(= (+ ULTIMATE.start_main_~j~6 9) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {23207#(= (+ ULTIMATE.start_main_~j~6 8) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:04:08,252 INFO L273 TraceCheckUtils]: 54: Hoare triple {23207#(= (+ ULTIMATE.start_main_~j~6 8) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {23208#(= (+ ULTIMATE.start_main_~j~6 7) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:04:08,253 INFO L273 TraceCheckUtils]: 55: Hoare triple {23208#(= (+ ULTIMATE.start_main_~j~6 7) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {23209#(= (+ ULTIMATE.start_main_~j~6 6) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:04:08,254 INFO L273 TraceCheckUtils]: 56: Hoare triple {23209#(= (+ ULTIMATE.start_main_~j~6 6) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {23210#(= (+ ULTIMATE.start_main_~j~6 5) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:04:08,255 INFO L273 TraceCheckUtils]: 57: Hoare triple {23210#(= (+ ULTIMATE.start_main_~j~6 5) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {23211#(= (+ ULTIMATE.start_main_~j~6 4) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:04:08,256 INFO L273 TraceCheckUtils]: 58: Hoare triple {23211#(= (+ ULTIMATE.start_main_~j~6 4) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {23212#(= (+ ULTIMATE.start_main_~j~6 3) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:04:08,257 INFO L273 TraceCheckUtils]: 59: Hoare triple {23212#(= (+ ULTIMATE.start_main_~j~6 3) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {23213#(= (+ ULTIMATE.start_main_~j~6 2) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:04:08,258 INFO L273 TraceCheckUtils]: 60: Hoare triple {23213#(= (+ ULTIMATE.start_main_~j~6 2) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {23214#(= (+ ULTIMATE.start_main_~j~6 1) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:04:08,259 INFO L273 TraceCheckUtils]: 61: Hoare triple {23214#(= (+ ULTIMATE.start_main_~j~6 1) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {23215#(= (select ULTIMATE.start_main_~str1~6 0) (select ULTIMATE.start_main_~str2~6 (+ ULTIMATE.start_main_~MAX~6 (- 1))))} is VALID [2019-01-31 15:04:08,260 INFO L273 TraceCheckUtils]: 62: Hoare triple {23215#(= (select ULTIMATE.start_main_~str1~6 0) (select ULTIMATE.start_main_~str2~6 (+ ULTIMATE.start_main_~MAX~6 (- 1))))} assume !(main_~i~6 >= 0);main_~j~6 := main_~MAX~6 - 1;main_~i~6 := 0;assume !!(main_~i~6 < main_~MAX~6);__VERIFIER_assert_#in~cond := (if main_~str1~6[main_~i~6] == main_~str2~6[main_~j~6] then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond;assume __VERIFIER_assert_~cond == 0;assume !false; {23153#false} is VALID [2019-01-31 15:04:08,260 INFO L273 TraceCheckUtils]: 63: Hoare triple {23153#false} assume !false; {23153#false} is VALID [2019-01-31 15:04:08,267 INFO L134 CoverageAnalysis]: Checked inductivity of 930 backedges. 0 proven. 930 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-31 15:04:08,267 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-31 15:04:08,267 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-01-31 15:04:08,268 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-01-31 15:04:08,268 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-01-31 15:04:08,268 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-31 15:04:08,268 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 46 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 46 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-01-31 15:04:08,277 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2019-01-31 15:04:08,277 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder TERMS_WITH_SMALL_CONSTANTS_FIRST (IT: FPandBP) [2019-01-31 15:04:08,316 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-01-31 15:04:08,316 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-01-31 15:04:08,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-31 15:04:08,365 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-31 15:04:11,105 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2019-01-31 15:04:11,106 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-01-31 15:04:11,112 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-31 15:04:11,112 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:17, output treesize:16 [2019-01-31 15:04:11,115 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-01-31 15:04:11,115 WARN L398 uantifierElimination]: Input elimination task: ∃ [v_ULTIMATE.start_main_~str2~6_696]. (and (<= 30 ULTIMATE.start_main_~MAX~6) (= (store v_ULTIMATE.start_main_~str2~6_696 29 (select ULTIMATE.start_main_~str1~6 0)) ULTIMATE.start_main_~str2~6) (<= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 31))) [2019-01-31 15:04:11,115 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (and (<= 30 ULTIMATE.start_main_~MAX~6) (= (select ULTIMATE.start_main_~str1~6 0) (select ULTIMATE.start_main_~str2~6 29)) (<= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 31))) [2019-01-31 15:04:11,214 INFO L273 TraceCheckUtils]: 0: Hoare triple {23152#true} havoc main_#res;havoc main_#t~nondet0, main_#t~nondet2, main_#t~post1, main_#t~post4, main_#t~post3, main_#t~post6, main_#t~post5, main_~MAX~6, main_~str1~6, main_~str2~6, main_~cont~6, main_~i~6, main_~j~6;main_~MAX~6 := (if main_#t~nondet0 % 4294967296 % 4294967296 <= 2147483647 then main_#t~nondet0 % 4294967296 % 4294967296 else main_#t~nondet0 % 4294967296 % 4294967296 - 4294967296);havoc main_#t~nondet0;havoc main_~str1~6;havoc main_~str2~6;havoc main_~cont~6;havoc main_~i~6;havoc main_~j~6;main_~cont~6 := 0;main_~i~6 := 0; {23152#true} is VALID [2019-01-31 15:04:11,215 INFO L273 TraceCheckUtils]: 1: Hoare triple {23152#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {23152#true} is VALID [2019-01-31 15:04:11,215 INFO L273 TraceCheckUtils]: 2: Hoare triple {23152#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {23152#true} is VALID [2019-01-31 15:04:11,215 INFO L273 TraceCheckUtils]: 3: Hoare triple {23152#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {23152#true} is VALID [2019-01-31 15:04:11,215 INFO L273 TraceCheckUtils]: 4: Hoare triple {23152#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {23152#true} is VALID [2019-01-31 15:04:11,215 INFO L273 TraceCheckUtils]: 5: Hoare triple {23152#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {23152#true} is VALID [2019-01-31 15:04:11,216 INFO L273 TraceCheckUtils]: 6: Hoare triple {23152#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {23152#true} is VALID [2019-01-31 15:04:11,216 INFO L273 TraceCheckUtils]: 7: Hoare triple {23152#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {23152#true} is VALID [2019-01-31 15:04:11,216 INFO L273 TraceCheckUtils]: 8: Hoare triple {23152#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {23152#true} is VALID [2019-01-31 15:04:11,216 INFO L273 TraceCheckUtils]: 9: Hoare triple {23152#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {23152#true} is VALID [2019-01-31 15:04:11,216 INFO L273 TraceCheckUtils]: 10: Hoare triple {23152#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {23152#true} is VALID [2019-01-31 15:04:11,216 INFO L273 TraceCheckUtils]: 11: Hoare triple {23152#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {23152#true} is VALID [2019-01-31 15:04:11,217 INFO L273 TraceCheckUtils]: 12: Hoare triple {23152#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {23152#true} is VALID [2019-01-31 15:04:11,217 INFO L273 TraceCheckUtils]: 13: Hoare triple {23152#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {23152#true} is VALID [2019-01-31 15:04:11,217 INFO L273 TraceCheckUtils]: 14: Hoare triple {23152#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {23152#true} is VALID [2019-01-31 15:04:11,217 INFO L273 TraceCheckUtils]: 15: Hoare triple {23152#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {23152#true} is VALID [2019-01-31 15:04:11,217 INFO L273 TraceCheckUtils]: 16: Hoare triple {23152#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {23152#true} is VALID [2019-01-31 15:04:11,217 INFO L273 TraceCheckUtils]: 17: Hoare triple {23152#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {23152#true} is VALID [2019-01-31 15:04:11,217 INFO L273 TraceCheckUtils]: 18: Hoare triple {23152#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {23152#true} is VALID [2019-01-31 15:04:11,217 INFO L273 TraceCheckUtils]: 19: Hoare triple {23152#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {23152#true} is VALID [2019-01-31 15:04:11,217 INFO L273 TraceCheckUtils]: 20: Hoare triple {23152#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {23152#true} is VALID [2019-01-31 15:04:11,217 INFO L273 TraceCheckUtils]: 21: Hoare triple {23152#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {23152#true} is VALID [2019-01-31 15:04:11,218 INFO L273 TraceCheckUtils]: 22: Hoare triple {23152#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {23152#true} is VALID [2019-01-31 15:04:11,218 INFO L273 TraceCheckUtils]: 23: Hoare triple {23152#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {23152#true} is VALID [2019-01-31 15:04:11,218 INFO L273 TraceCheckUtils]: 24: Hoare triple {23152#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {23152#true} is VALID [2019-01-31 15:04:11,218 INFO L273 TraceCheckUtils]: 25: Hoare triple {23152#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {23152#true} is VALID [2019-01-31 15:04:11,218 INFO L273 TraceCheckUtils]: 26: Hoare triple {23152#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {23152#true} is VALID [2019-01-31 15:04:11,218 INFO L273 TraceCheckUtils]: 27: Hoare triple {23152#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {23152#true} is VALID [2019-01-31 15:04:11,218 INFO L273 TraceCheckUtils]: 28: Hoare triple {23152#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {23152#true} is VALID [2019-01-31 15:04:11,218 INFO L273 TraceCheckUtils]: 29: Hoare triple {23152#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {23152#true} is VALID [2019-01-31 15:04:11,218 INFO L273 TraceCheckUtils]: 30: Hoare triple {23152#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {23152#true} is VALID [2019-01-31 15:04:11,219 INFO L273 TraceCheckUtils]: 31: Hoare triple {23152#true} assume !(main_~i~6 < main_~MAX~6);main_~str1~6 := main_~str1~6[main_~MAX~6 - 1 := 0];main_~j~6 := 0;main_~i~6 := main_~MAX~6 - 1; {23312#(and (= ULTIMATE.start_main_~j~6 0) (= (+ ULTIMATE.start_main_~i~6 1) ULTIMATE.start_main_~MAX~6))} is VALID [2019-01-31 15:04:11,220 INFO L273 TraceCheckUtils]: 32: Hoare triple {23312#(and (= ULTIMATE.start_main_~j~6 0) (= (+ ULTIMATE.start_main_~i~6 1) ULTIMATE.start_main_~MAX~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {23316#(and (= ULTIMATE.start_main_~j~6 1) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 2)))} is VALID [2019-01-31 15:04:11,220 INFO L273 TraceCheckUtils]: 33: Hoare triple {23316#(and (= ULTIMATE.start_main_~j~6 1) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 2)))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {23320#(and (= (+ ULTIMATE.start_main_~i~6 3) ULTIMATE.start_main_~MAX~6) (= ULTIMATE.start_main_~j~6 2))} is VALID [2019-01-31 15:04:11,221 INFO L273 TraceCheckUtils]: 34: Hoare triple {23320#(and (= (+ ULTIMATE.start_main_~i~6 3) ULTIMATE.start_main_~MAX~6) (= ULTIMATE.start_main_~j~6 2))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {23324#(and (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 4)) (= ULTIMATE.start_main_~j~6 3))} is VALID [2019-01-31 15:04:11,221 INFO L273 TraceCheckUtils]: 35: Hoare triple {23324#(and (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 4)) (= ULTIMATE.start_main_~j~6 3))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {23328#(and (= ULTIMATE.start_main_~j~6 4) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 5)))} is VALID [2019-01-31 15:04:11,222 INFO L273 TraceCheckUtils]: 36: Hoare triple {23328#(and (= ULTIMATE.start_main_~j~6 4) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 5)))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {23332#(and (= ULTIMATE.start_main_~j~6 5) (= (+ ULTIMATE.start_main_~i~6 6) ULTIMATE.start_main_~MAX~6))} is VALID [2019-01-31 15:04:11,223 INFO L273 TraceCheckUtils]: 37: Hoare triple {23332#(and (= ULTIMATE.start_main_~j~6 5) (= (+ ULTIMATE.start_main_~i~6 6) ULTIMATE.start_main_~MAX~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {23336#(and (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 7)) (= ULTIMATE.start_main_~j~6 6))} is VALID [2019-01-31 15:04:11,224 INFO L273 TraceCheckUtils]: 38: Hoare triple {23336#(and (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 7)) (= ULTIMATE.start_main_~j~6 6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {23340#(and (= ULTIMATE.start_main_~j~6 7) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 8)))} is VALID [2019-01-31 15:04:11,225 INFO L273 TraceCheckUtils]: 39: Hoare triple {23340#(and (= ULTIMATE.start_main_~j~6 7) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 8)))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {23344#(and (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 9)) (= ULTIMATE.start_main_~j~6 8))} is VALID [2019-01-31 15:04:11,226 INFO L273 TraceCheckUtils]: 40: Hoare triple {23344#(and (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 9)) (= ULTIMATE.start_main_~j~6 8))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {23348#(and (= ULTIMATE.start_main_~j~6 9) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 10)))} is VALID [2019-01-31 15:04:11,227 INFO L273 TraceCheckUtils]: 41: Hoare triple {23348#(and (= ULTIMATE.start_main_~j~6 9) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 10)))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {23352#(and (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 11)) (= ULTIMATE.start_main_~j~6 10))} is VALID [2019-01-31 15:04:11,228 INFO L273 TraceCheckUtils]: 42: Hoare triple {23352#(and (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 11)) (= ULTIMATE.start_main_~j~6 10))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {23356#(and (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 12)) (= ULTIMATE.start_main_~j~6 11))} is VALID [2019-01-31 15:04:11,229 INFO L273 TraceCheckUtils]: 43: Hoare triple {23356#(and (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 12)) (= ULTIMATE.start_main_~j~6 11))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {23360#(and (= ULTIMATE.start_main_~j~6 12) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 13)))} is VALID [2019-01-31 15:04:11,230 INFO L273 TraceCheckUtils]: 44: Hoare triple {23360#(and (= ULTIMATE.start_main_~j~6 12) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 13)))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {23364#(and (= ULTIMATE.start_main_~j~6 13) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 14)))} is VALID [2019-01-31 15:04:11,231 INFO L273 TraceCheckUtils]: 45: Hoare triple {23364#(and (= ULTIMATE.start_main_~j~6 13) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 14)))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {23368#(and (= ULTIMATE.start_main_~j~6 14) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 15)))} is VALID [2019-01-31 15:04:11,232 INFO L273 TraceCheckUtils]: 46: Hoare triple {23368#(and (= ULTIMATE.start_main_~j~6 14) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 15)))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {23372#(and (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 16)) (= ULTIMATE.start_main_~j~6 15))} is VALID [2019-01-31 15:04:11,233 INFO L273 TraceCheckUtils]: 47: Hoare triple {23372#(and (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 16)) (= ULTIMATE.start_main_~j~6 15))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {23376#(and (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 17)) (= ULTIMATE.start_main_~j~6 16))} is VALID [2019-01-31 15:04:11,234 INFO L273 TraceCheckUtils]: 48: Hoare triple {23376#(and (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 17)) (= ULTIMATE.start_main_~j~6 16))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {23380#(and (= ULTIMATE.start_main_~j~6 17) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 18)))} is VALID [2019-01-31 15:04:11,235 INFO L273 TraceCheckUtils]: 49: Hoare triple {23380#(and (= ULTIMATE.start_main_~j~6 17) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 18)))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {23384#(and (= ULTIMATE.start_main_~j~6 18) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 19)))} is VALID [2019-01-31 15:04:11,236 INFO L273 TraceCheckUtils]: 50: Hoare triple {23384#(and (= ULTIMATE.start_main_~j~6 18) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 19)))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {23388#(and (= ULTIMATE.start_main_~j~6 19) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 20)))} is VALID [2019-01-31 15:04:11,237 INFO L273 TraceCheckUtils]: 51: Hoare triple {23388#(and (= ULTIMATE.start_main_~j~6 19) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 20)))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {23392#(and (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 21)) (= ULTIMATE.start_main_~j~6 20))} is VALID [2019-01-31 15:04:11,238 INFO L273 TraceCheckUtils]: 52: Hoare triple {23392#(and (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 21)) (= ULTIMATE.start_main_~j~6 20))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {23396#(and (= ULTIMATE.start_main_~j~6 21) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 22)))} is VALID [2019-01-31 15:04:11,239 INFO L273 TraceCheckUtils]: 53: Hoare triple {23396#(and (= ULTIMATE.start_main_~j~6 21) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 22)))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {23400#(and (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 23)) (= ULTIMATE.start_main_~j~6 22))} is VALID [2019-01-31 15:04:11,240 INFO L273 TraceCheckUtils]: 54: Hoare triple {23400#(and (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 23)) (= ULTIMATE.start_main_~j~6 22))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {23404#(and (= ULTIMATE.start_main_~j~6 23) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 24)))} is VALID [2019-01-31 15:04:11,241 INFO L273 TraceCheckUtils]: 55: Hoare triple {23404#(and (= ULTIMATE.start_main_~j~6 23) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 24)))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {23408#(and (= ULTIMATE.start_main_~j~6 24) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 25)))} is VALID [2019-01-31 15:04:11,242 INFO L273 TraceCheckUtils]: 56: Hoare triple {23408#(and (= ULTIMATE.start_main_~j~6 24) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 25)))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {23412#(and (= ULTIMATE.start_main_~j~6 25) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 26)))} is VALID [2019-01-31 15:04:11,243 INFO L273 TraceCheckUtils]: 57: Hoare triple {23412#(and (= ULTIMATE.start_main_~j~6 25) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 26)))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {23416#(and (= ULTIMATE.start_main_~j~6 26) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 27)))} is VALID [2019-01-31 15:04:11,244 INFO L273 TraceCheckUtils]: 58: Hoare triple {23416#(and (= ULTIMATE.start_main_~j~6 26) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 27)))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {23420#(and (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 28)) (= ULTIMATE.start_main_~j~6 27))} is VALID [2019-01-31 15:04:11,245 INFO L273 TraceCheckUtils]: 59: Hoare triple {23420#(and (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 28)) (= ULTIMATE.start_main_~j~6 27))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {23424#(and (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 29)) (= ULTIMATE.start_main_~j~6 28))} is VALID [2019-01-31 15:04:11,246 INFO L273 TraceCheckUtils]: 60: Hoare triple {23424#(and (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 29)) (= ULTIMATE.start_main_~j~6 28))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {23428#(and (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 30)) (= ULTIMATE.start_main_~j~6 29))} is VALID [2019-01-31 15:04:11,247 INFO L273 TraceCheckUtils]: 61: Hoare triple {23428#(and (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 30)) (= ULTIMATE.start_main_~j~6 29))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {23432#(and (<= 30 ULTIMATE.start_main_~MAX~6) (= (select ULTIMATE.start_main_~str1~6 0) (select ULTIMATE.start_main_~str2~6 29)) (<= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 31)))} is VALID [2019-01-31 15:04:11,249 INFO L273 TraceCheckUtils]: 62: Hoare triple {23432#(and (<= 30 ULTIMATE.start_main_~MAX~6) (= (select ULTIMATE.start_main_~str1~6 0) (select ULTIMATE.start_main_~str2~6 29)) (<= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 31)))} assume !(main_~i~6 >= 0);main_~j~6 := main_~MAX~6 - 1;main_~i~6 := 0;assume !!(main_~i~6 < main_~MAX~6);__VERIFIER_assert_#in~cond := (if main_~str1~6[main_~i~6] == main_~str2~6[main_~j~6] then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond;assume __VERIFIER_assert_~cond == 0;assume !false; {23153#false} is VALID [2019-01-31 15:04:11,249 INFO L273 TraceCheckUtils]: 63: Hoare triple {23153#false} assume !false; {23153#false} is VALID [2019-01-31 15:04:11,254 INFO L134 CoverageAnalysis]: Checked inductivity of 930 backedges. 0 proven. 465 refuted. 0 times theorem prover too weak. 465 trivial. 0 not checked. [2019-01-31 15:04:11,254 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2019-01-31 15:04:11,382 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 5 [2019-01-31 15:04:11,386 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-01-31 15:04:11,397 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-31 15:04:11,397 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:22, output treesize:12 [2019-01-31 15:04:11,399 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-01-31 15:04:11,400 WARN L398 uantifierElimination]: Input elimination task: ∀ [ULTIMATE.start_main_~str2~6, ULTIMATE.start_main_~str1~6]. (or (not (<= 0 ULTIMATE.start_main_~i~6)) (let ((.cse0 (select ULTIMATE.start_main_~str1~6 0))) (= .cse0 (select (store ULTIMATE.start_main_~str2~6 ULTIMATE.start_main_~j~6 .cse0) (+ ULTIMATE.start_main_~MAX~6 (- 1))))) (< 0 ULTIMATE.start_main_~i~6)) [2019-01-31 15:04:11,400 WARN L399 uantifierElimination]: ElimStorePlain result: ∀ []. (or (< ULTIMATE.start_main_~i~6 0) (< 0 ULTIMATE.start_main_~i~6) (= (+ ULTIMATE.start_main_~j~6 1) ULTIMATE.start_main_~MAX~6)) [2019-01-31 15:04:14,800 INFO L273 TraceCheckUtils]: 63: Hoare triple {23153#false} assume !false; {23153#false} is VALID [2019-01-31 15:04:14,801 INFO L273 TraceCheckUtils]: 62: Hoare triple {23442#(or (= (select ULTIMATE.start_main_~str1~6 0) (select ULTIMATE.start_main_~str2~6 (+ ULTIMATE.start_main_~MAX~6 (- 1)))) (<= 0 ULTIMATE.start_main_~i~6))} assume !(main_~i~6 >= 0);main_~j~6 := main_~MAX~6 - 1;main_~i~6 := 0;assume !!(main_~i~6 < main_~MAX~6);__VERIFIER_assert_#in~cond := (if main_~str1~6[main_~i~6] == main_~str2~6[main_~j~6] then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond;assume __VERIFIER_assert_~cond == 0;assume !false; {23153#false} is VALID [2019-01-31 15:04:14,802 INFO L273 TraceCheckUtils]: 61: Hoare triple {23446#(or (< ULTIMATE.start_main_~i~6 0) (< 0 ULTIMATE.start_main_~i~6) (= (+ ULTIMATE.start_main_~j~6 1) ULTIMATE.start_main_~MAX~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {23442#(or (= (select ULTIMATE.start_main_~str1~6 0) (select ULTIMATE.start_main_~str2~6 (+ ULTIMATE.start_main_~MAX~6 (- 1)))) (<= 0 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:04:14,802 INFO L273 TraceCheckUtils]: 60: Hoare triple {23450#(or (= (+ ULTIMATE.start_main_~j~6 2) ULTIMATE.start_main_~MAX~6) (< 1 ULTIMATE.start_main_~i~6) (< ULTIMATE.start_main_~i~6 1))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {23446#(or (< ULTIMATE.start_main_~i~6 0) (< 0 ULTIMATE.start_main_~i~6) (= (+ ULTIMATE.start_main_~j~6 1) ULTIMATE.start_main_~MAX~6))} is VALID [2019-01-31 15:04:14,803 INFO L273 TraceCheckUtils]: 59: Hoare triple {23454#(or (= (+ ULTIMATE.start_main_~j~6 3) ULTIMATE.start_main_~MAX~6) (< ULTIMATE.start_main_~i~6 2) (< 2 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {23450#(or (= (+ ULTIMATE.start_main_~j~6 2) ULTIMATE.start_main_~MAX~6) (< 1 ULTIMATE.start_main_~i~6) (< ULTIMATE.start_main_~i~6 1))} is VALID [2019-01-31 15:04:14,804 INFO L273 TraceCheckUtils]: 58: Hoare triple {23458#(or (= (+ ULTIMATE.start_main_~j~6 4) ULTIMATE.start_main_~MAX~6) (< ULTIMATE.start_main_~i~6 3) (< 3 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {23454#(or (= (+ ULTIMATE.start_main_~j~6 3) ULTIMATE.start_main_~MAX~6) (< ULTIMATE.start_main_~i~6 2) (< 2 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:04:14,805 INFO L273 TraceCheckUtils]: 57: Hoare triple {23462#(or (= (+ ULTIMATE.start_main_~j~6 5) ULTIMATE.start_main_~MAX~6) (< 4 ULTIMATE.start_main_~i~6) (< ULTIMATE.start_main_~i~6 4))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {23458#(or (= (+ ULTIMATE.start_main_~j~6 4) ULTIMATE.start_main_~MAX~6) (< ULTIMATE.start_main_~i~6 3) (< 3 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:04:14,807 INFO L273 TraceCheckUtils]: 56: Hoare triple {23466#(or (< ULTIMATE.start_main_~i~6 5) (< 5 ULTIMATE.start_main_~i~6) (= (+ ULTIMATE.start_main_~j~6 6) ULTIMATE.start_main_~MAX~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {23462#(or (= (+ ULTIMATE.start_main_~j~6 5) ULTIMATE.start_main_~MAX~6) (< 4 ULTIMATE.start_main_~i~6) (< ULTIMATE.start_main_~i~6 4))} is VALID [2019-01-31 15:04:14,808 INFO L273 TraceCheckUtils]: 55: Hoare triple {23470#(or (< ULTIMATE.start_main_~i~6 6) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 7)) (< 6 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {23466#(or (< ULTIMATE.start_main_~i~6 5) (< 5 ULTIMATE.start_main_~i~6) (= (+ ULTIMATE.start_main_~j~6 6) ULTIMATE.start_main_~MAX~6))} is VALID [2019-01-31 15:04:14,809 INFO L273 TraceCheckUtils]: 54: Hoare triple {23474#(or (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 8)) (< ULTIMATE.start_main_~i~6 7) (< 7 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {23470#(or (< ULTIMATE.start_main_~i~6 6) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 7)) (< 6 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:04:14,810 INFO L273 TraceCheckUtils]: 53: Hoare triple {23478#(or (< 8 ULTIMATE.start_main_~i~6) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 9)) (< ULTIMATE.start_main_~i~6 8))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {23474#(or (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 8)) (< ULTIMATE.start_main_~i~6 7) (< 7 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:04:14,811 INFO L273 TraceCheckUtils]: 52: Hoare triple {23482#(or (< ULTIMATE.start_main_~i~6 9) (= (+ ULTIMATE.start_main_~j~6 10) ULTIMATE.start_main_~MAX~6) (< 9 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {23478#(or (< 8 ULTIMATE.start_main_~i~6) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 9)) (< ULTIMATE.start_main_~i~6 8))} is VALID [2019-01-31 15:04:14,812 INFO L273 TraceCheckUtils]: 51: Hoare triple {23486#(or (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 11)) (< 10 ULTIMATE.start_main_~i~6) (< ULTIMATE.start_main_~i~6 10))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {23482#(or (< ULTIMATE.start_main_~i~6 9) (= (+ ULTIMATE.start_main_~j~6 10) ULTIMATE.start_main_~MAX~6) (< 9 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:04:14,813 INFO L273 TraceCheckUtils]: 50: Hoare triple {23490#(or (< ULTIMATE.start_main_~i~6 11) (= (+ ULTIMATE.start_main_~j~6 12) ULTIMATE.start_main_~MAX~6) (< 11 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {23486#(or (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 11)) (< 10 ULTIMATE.start_main_~i~6) (< ULTIMATE.start_main_~i~6 10))} is VALID [2019-01-31 15:04:14,814 INFO L273 TraceCheckUtils]: 49: Hoare triple {23494#(or (< 12 ULTIMATE.start_main_~i~6) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 13)) (< ULTIMATE.start_main_~i~6 12))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {23490#(or (< ULTIMATE.start_main_~i~6 11) (= (+ ULTIMATE.start_main_~j~6 12) ULTIMATE.start_main_~MAX~6) (< 11 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:04:14,815 INFO L273 TraceCheckUtils]: 48: Hoare triple {23498#(or (< ULTIMATE.start_main_~i~6 13) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 14)) (< 13 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {23494#(or (< 12 ULTIMATE.start_main_~i~6) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 13)) (< ULTIMATE.start_main_~i~6 12))} is VALID [2019-01-31 15:04:14,816 INFO L273 TraceCheckUtils]: 47: Hoare triple {23502#(or (< 14 ULTIMATE.start_main_~i~6) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 15)) (< ULTIMATE.start_main_~i~6 14))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {23498#(or (< ULTIMATE.start_main_~i~6 13) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 14)) (< 13 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:04:14,817 INFO L273 TraceCheckUtils]: 46: Hoare triple {23506#(or (< 15 ULTIMATE.start_main_~i~6) (< ULTIMATE.start_main_~i~6 15) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 16)))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {23502#(or (< 14 ULTIMATE.start_main_~i~6) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 15)) (< ULTIMATE.start_main_~i~6 14))} is VALID [2019-01-31 15:04:14,818 INFO L273 TraceCheckUtils]: 45: Hoare triple {23510#(or (< ULTIMATE.start_main_~i~6 16) (< 16 ULTIMATE.start_main_~i~6) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 17)))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {23506#(or (< 15 ULTIMATE.start_main_~i~6) (< ULTIMATE.start_main_~i~6 15) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 16)))} is VALID [2019-01-31 15:04:14,820 INFO L273 TraceCheckUtils]: 44: Hoare triple {23514#(or (< ULTIMATE.start_main_~i~6 17) (< 17 ULTIMATE.start_main_~i~6) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 18)))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {23510#(or (< ULTIMATE.start_main_~i~6 16) (< 16 ULTIMATE.start_main_~i~6) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 17)))} is VALID [2019-01-31 15:04:14,821 INFO L273 TraceCheckUtils]: 43: Hoare triple {23518#(or (< ULTIMATE.start_main_~i~6 18) (< 18 ULTIMATE.start_main_~i~6) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 19)))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {23514#(or (< ULTIMATE.start_main_~i~6 17) (< 17 ULTIMATE.start_main_~i~6) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 18)))} is VALID [2019-01-31 15:04:14,822 INFO L273 TraceCheckUtils]: 42: Hoare triple {23522#(or (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 20)) (< 19 ULTIMATE.start_main_~i~6) (< ULTIMATE.start_main_~i~6 19))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {23518#(or (< ULTIMATE.start_main_~i~6 18) (< 18 ULTIMATE.start_main_~i~6) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 19)))} is VALID [2019-01-31 15:04:14,823 INFO L273 TraceCheckUtils]: 41: Hoare triple {23526#(or (< ULTIMATE.start_main_~i~6 20) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 21)) (< 20 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {23522#(or (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 20)) (< 19 ULTIMATE.start_main_~i~6) (< ULTIMATE.start_main_~i~6 19))} is VALID [2019-01-31 15:04:14,824 INFO L273 TraceCheckUtils]: 40: Hoare triple {23530#(or (< 21 ULTIMATE.start_main_~i~6) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 22)) (< ULTIMATE.start_main_~i~6 21))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {23526#(or (< ULTIMATE.start_main_~i~6 20) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 21)) (< 20 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:04:14,825 INFO L273 TraceCheckUtils]: 39: Hoare triple {23534#(or (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 23)) (< ULTIMATE.start_main_~i~6 22) (< 22 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {23530#(or (< 21 ULTIMATE.start_main_~i~6) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 22)) (< ULTIMATE.start_main_~i~6 21))} is VALID [2019-01-31 15:04:14,826 INFO L273 TraceCheckUtils]: 38: Hoare triple {23538#(or (< ULTIMATE.start_main_~i~6 23) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 24)) (< 23 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {23534#(or (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 23)) (< ULTIMATE.start_main_~i~6 22) (< 22 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:04:14,827 INFO L273 TraceCheckUtils]: 37: Hoare triple {23542#(or (< 24 ULTIMATE.start_main_~i~6) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 25)) (< ULTIMATE.start_main_~i~6 24))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {23538#(or (< ULTIMATE.start_main_~i~6 23) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 24)) (< 23 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:04:14,828 INFO L273 TraceCheckUtils]: 36: Hoare triple {23546#(or (< 25 ULTIMATE.start_main_~i~6) (< ULTIMATE.start_main_~i~6 25) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 26)))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {23542#(or (< 24 ULTIMATE.start_main_~i~6) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 25)) (< ULTIMATE.start_main_~i~6 24))} is VALID [2019-01-31 15:04:14,829 INFO L273 TraceCheckUtils]: 35: Hoare triple {23550#(or (< 26 ULTIMATE.start_main_~i~6) (< ULTIMATE.start_main_~i~6 26) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 27)))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {23546#(or (< 25 ULTIMATE.start_main_~i~6) (< ULTIMATE.start_main_~i~6 25) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 26)))} is VALID [2019-01-31 15:04:14,830 INFO L273 TraceCheckUtils]: 34: Hoare triple {23554#(or (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 28)) (< 27 ULTIMATE.start_main_~i~6) (< ULTIMATE.start_main_~i~6 27))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {23550#(or (< 26 ULTIMATE.start_main_~i~6) (< ULTIMATE.start_main_~i~6 26) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 27)))} is VALID [2019-01-31 15:04:14,832 INFO L273 TraceCheckUtils]: 33: Hoare triple {23558#(or (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 29)) (< 28 ULTIMATE.start_main_~i~6) (< ULTIMATE.start_main_~i~6 28))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {23554#(or (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 28)) (< 27 ULTIMATE.start_main_~i~6) (< ULTIMATE.start_main_~i~6 27))} is VALID [2019-01-31 15:04:14,833 INFO L273 TraceCheckUtils]: 32: Hoare triple {23562#(or (< 29 ULTIMATE.start_main_~i~6) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 30)) (< ULTIMATE.start_main_~i~6 29))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {23558#(or (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 29)) (< 28 ULTIMATE.start_main_~i~6) (< ULTIMATE.start_main_~i~6 28))} is VALID [2019-01-31 15:04:14,834 INFO L273 TraceCheckUtils]: 31: Hoare triple {23152#true} assume !(main_~i~6 < main_~MAX~6);main_~str1~6 := main_~str1~6[main_~MAX~6 - 1 := 0];main_~j~6 := 0;main_~i~6 := main_~MAX~6 - 1; {23562#(or (< 29 ULTIMATE.start_main_~i~6) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 30)) (< ULTIMATE.start_main_~i~6 29))} is VALID [2019-01-31 15:04:14,834 INFO L273 TraceCheckUtils]: 30: Hoare triple {23152#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {23152#true} is VALID [2019-01-31 15:04:14,834 INFO L273 TraceCheckUtils]: 29: Hoare triple {23152#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {23152#true} is VALID [2019-01-31 15:04:14,834 INFO L273 TraceCheckUtils]: 28: Hoare triple {23152#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {23152#true} is VALID [2019-01-31 15:04:14,834 INFO L273 TraceCheckUtils]: 27: Hoare triple {23152#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {23152#true} is VALID [2019-01-31 15:04:14,835 INFO L273 TraceCheckUtils]: 26: Hoare triple {23152#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {23152#true} is VALID [2019-01-31 15:04:14,835 INFO L273 TraceCheckUtils]: 25: Hoare triple {23152#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {23152#true} is VALID [2019-01-31 15:04:14,835 INFO L273 TraceCheckUtils]: 24: Hoare triple {23152#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {23152#true} is VALID [2019-01-31 15:04:14,835 INFO L273 TraceCheckUtils]: 23: Hoare triple {23152#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {23152#true} is VALID [2019-01-31 15:04:14,835 INFO L273 TraceCheckUtils]: 22: Hoare triple {23152#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {23152#true} is VALID [2019-01-31 15:04:14,835 INFO L273 TraceCheckUtils]: 21: Hoare triple {23152#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {23152#true} is VALID [2019-01-31 15:04:14,835 INFO L273 TraceCheckUtils]: 20: Hoare triple {23152#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {23152#true} is VALID [2019-01-31 15:04:14,836 INFO L273 TraceCheckUtils]: 19: Hoare triple {23152#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {23152#true} is VALID [2019-01-31 15:04:14,836 INFO L273 TraceCheckUtils]: 18: Hoare triple {23152#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {23152#true} is VALID [2019-01-31 15:04:14,836 INFO L273 TraceCheckUtils]: 17: Hoare triple {23152#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {23152#true} is VALID [2019-01-31 15:04:14,836 INFO L273 TraceCheckUtils]: 16: Hoare triple {23152#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {23152#true} is VALID [2019-01-31 15:04:14,836 INFO L273 TraceCheckUtils]: 15: Hoare triple {23152#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {23152#true} is VALID [2019-01-31 15:04:14,836 INFO L273 TraceCheckUtils]: 14: Hoare triple {23152#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {23152#true} is VALID [2019-01-31 15:04:14,836 INFO L273 TraceCheckUtils]: 13: Hoare triple {23152#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {23152#true} is VALID [2019-01-31 15:04:14,836 INFO L273 TraceCheckUtils]: 12: Hoare triple {23152#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {23152#true} is VALID [2019-01-31 15:04:14,836 INFO L273 TraceCheckUtils]: 11: Hoare triple {23152#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {23152#true} is VALID [2019-01-31 15:04:14,836 INFO L273 TraceCheckUtils]: 10: Hoare triple {23152#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {23152#true} is VALID [2019-01-31 15:04:14,837 INFO L273 TraceCheckUtils]: 9: Hoare triple {23152#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {23152#true} is VALID [2019-01-31 15:04:14,837 INFO L273 TraceCheckUtils]: 8: Hoare triple {23152#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {23152#true} is VALID [2019-01-31 15:04:14,837 INFO L273 TraceCheckUtils]: 7: Hoare triple {23152#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {23152#true} is VALID [2019-01-31 15:04:14,837 INFO L273 TraceCheckUtils]: 6: Hoare triple {23152#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {23152#true} is VALID [2019-01-31 15:04:14,837 INFO L273 TraceCheckUtils]: 5: Hoare triple {23152#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {23152#true} is VALID [2019-01-31 15:04:14,837 INFO L273 TraceCheckUtils]: 4: Hoare triple {23152#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {23152#true} is VALID [2019-01-31 15:04:14,837 INFO L273 TraceCheckUtils]: 3: Hoare triple {23152#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {23152#true} is VALID [2019-01-31 15:04:14,837 INFO L273 TraceCheckUtils]: 2: Hoare triple {23152#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {23152#true} is VALID [2019-01-31 15:04:14,837 INFO L273 TraceCheckUtils]: 1: Hoare triple {23152#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {23152#true} is VALID [2019-01-31 15:04:14,837 INFO L273 TraceCheckUtils]: 0: Hoare triple {23152#true} havoc main_#res;havoc main_#t~nondet0, main_#t~nondet2, main_#t~post1, main_#t~post4, main_#t~post3, main_#t~post6, main_#t~post5, main_~MAX~6, main_~str1~6, main_~str2~6, main_~cont~6, main_~i~6, main_~j~6;main_~MAX~6 := (if main_#t~nondet0 % 4294967296 % 4294967296 <= 2147483647 then main_#t~nondet0 % 4294967296 % 4294967296 else main_#t~nondet0 % 4294967296 % 4294967296 - 4294967296);havoc main_#t~nondet0;havoc main_~str1~6;havoc main_~str2~6;havoc main_~cont~6;havoc main_~i~6;havoc main_~j~6;main_~cont~6 := 0;main_~i~6 := 0; {23152#true} is VALID [2019-01-31 15:04:14,843 INFO L134 CoverageAnalysis]: Checked inductivity of 930 backedges. 0 proven. 465 refuted. 0 times theorem prover too weak. 465 trivial. 0 not checked. [2019-01-31 15:04:14,861 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-01-31 15:04:14,861 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [63, 33, 33] total 126 [2019-01-31 15:04:14,861 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-01-31 15:04:14,862 INFO L78 Accepts]: Start accepts. Automaton has 95 states. Word has length 64 [2019-01-31 15:04:14,862 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-01-31 15:04:14,862 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 95 states. [2019-01-31 15:04:14,953 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 98 edges. 98 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-01-31 15:04:14,953 INFO L459 AbstractCegarLoop]: Interpolant automaton has 95 states [2019-01-31 15:04:14,954 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 95 interpolants. [2019-01-31 15:04:14,954 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2110, Invalid=13640, Unknown=0, NotChecked=0, Total=15750 [2019-01-31 15:04:14,955 INFO L87 Difference]: Start difference. First operand 65 states and 66 transitions. Second operand 95 states. [2019-01-31 15:04:33,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 15:04:33,981 INFO L93 Difference]: Finished difference Result 101 states and 105 transitions. [2019-01-31 15:04:33,981 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 98 states. [2019-01-31 15:04:33,981 INFO L78 Accepts]: Start accepts. Automaton has 95 states. Word has length 64 [2019-01-31 15:04:33,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-31 15:04:33,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 95 states. [2019-01-31 15:04:33,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 105 transitions. [2019-01-31 15:04:33,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 95 states. [2019-01-31 15:04:33,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 105 transitions. [2019-01-31 15:04:33,985 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 98 states and 105 transitions. [2019-01-31 15:04:34,102 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 105 edges. 105 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-01-31 15:04:34,103 INFO L225 Difference]: With dead ends: 101 [2019-01-31 15:04:34,103 INFO L226 Difference]: Without dead ends: 67 [2019-01-31 15:04:34,104 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 224 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 159 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2078 ImplicationChecksByTransitivity, 10.4s TimeCoverageRelationStatistics Valid=3373, Invalid=22387, Unknown=0, NotChecked=0, Total=25760 [2019-01-31 15:04:34,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2019-01-31 15:04:35,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 67. [2019-01-31 15:04:35,651 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-01-31 15:04:35,651 INFO L82 GeneralOperation]: Start isEquivalent. First operand 67 states. Second operand 67 states. [2019-01-31 15:04:35,651 INFO L74 IsIncluded]: Start isIncluded. First operand 67 states. Second operand 67 states. [2019-01-31 15:04:35,651 INFO L87 Difference]: Start difference. First operand 67 states. Second operand 67 states. [2019-01-31 15:04:35,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 15:04:35,652 INFO L93 Difference]: Finished difference Result 67 states and 68 transitions. [2019-01-31 15:04:35,653 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 68 transitions. [2019-01-31 15:04:35,653 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-31 15:04:35,653 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-01-31 15:04:35,653 INFO L74 IsIncluded]: Start isIncluded. First operand 67 states. Second operand 67 states. [2019-01-31 15:04:35,653 INFO L87 Difference]: Start difference. First operand 67 states. Second operand 67 states. [2019-01-31 15:04:35,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 15:04:35,654 INFO L93 Difference]: Finished difference Result 67 states and 68 transitions. [2019-01-31 15:04:35,654 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 68 transitions. [2019-01-31 15:04:35,655 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-31 15:04:35,655 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-01-31 15:04:35,655 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-01-31 15:04:35,655 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-01-31 15:04:35,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 67 states. [2019-01-31 15:04:35,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 68 transitions. [2019-01-31 15:04:35,656 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 68 transitions. Word has length 64 [2019-01-31 15:04:35,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-31 15:04:35,656 INFO L480 AbstractCegarLoop]: Abstraction has 67 states and 68 transitions. [2019-01-31 15:04:35,656 INFO L481 AbstractCegarLoop]: Interpolant automaton has 95 states. [2019-01-31 15:04:35,656 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 68 transitions. [2019-01-31 15:04:35,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2019-01-31 15:04:35,656 INFO L394 BasicCegarLoop]: Found error trace [2019-01-31 15:04:35,656 INFO L402 BasicCegarLoop]: trace histogram [31, 31, 1, 1, 1, 1] [2019-01-31 15:04:35,656 INFO L423 AbstractCegarLoop]: === Iteration 48 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2019-01-31 15:04:35,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-31 15:04:35,657 INFO L82 PathProgramCache]: Analyzing trace with hash -429274795, now seen corresponding path program 46 times [2019-01-31 15:04:35,657 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-01-31 15:04:35,657 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-31 15:04:35,657 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-01-31 15:04:35,657 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-31 15:04:35,657 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-01-31 15:04:35,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-31 15:04:38,965 INFO L273 TraceCheckUtils]: 0: Hoare triple {24193#true} havoc main_#res;havoc main_#t~nondet0, main_#t~nondet2, main_#t~post1, main_#t~post4, main_#t~post3, main_#t~post6, main_#t~post5, main_~MAX~6, main_~str1~6, main_~str2~6, main_~cont~6, main_~i~6, main_~j~6;main_~MAX~6 := (if main_#t~nondet0 % 4294967296 % 4294967296 <= 2147483647 then main_#t~nondet0 % 4294967296 % 4294967296 else main_#t~nondet0 % 4294967296 % 4294967296 - 4294967296);havoc main_#t~nondet0;havoc main_~str1~6;havoc main_~str2~6;havoc main_~cont~6;havoc main_~i~6;havoc main_~j~6;main_~cont~6 := 0;main_~i~6 := 0; {24195#(and (<= ULTIMATE.start_main_~i~6 0) (<= 0 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:04:38,966 INFO L273 TraceCheckUtils]: 1: Hoare triple {24195#(and (<= ULTIMATE.start_main_~i~6 0) (<= 0 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {24196#(and (<= ULTIMATE.start_main_~i~6 1) (<= 1 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:04:38,967 INFO L273 TraceCheckUtils]: 2: Hoare triple {24196#(and (<= ULTIMATE.start_main_~i~6 1) (<= 1 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {24197#(and (<= ULTIMATE.start_main_~i~6 2) (<= 2 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:04:38,968 INFO L273 TraceCheckUtils]: 3: Hoare triple {24197#(and (<= ULTIMATE.start_main_~i~6 2) (<= 2 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {24198#(and (<= 3 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 3))} is VALID [2019-01-31 15:04:38,969 INFO L273 TraceCheckUtils]: 4: Hoare triple {24198#(and (<= 3 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 3))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {24199#(and (<= ULTIMATE.start_main_~i~6 4) (<= 4 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:04:38,970 INFO L273 TraceCheckUtils]: 5: Hoare triple {24199#(and (<= ULTIMATE.start_main_~i~6 4) (<= 4 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {24200#(and (<= 5 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 5))} is VALID [2019-01-31 15:04:38,970 INFO L273 TraceCheckUtils]: 6: Hoare triple {24200#(and (<= 5 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 5))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {24201#(and (<= ULTIMATE.start_main_~i~6 6) (<= 6 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:04:38,971 INFO L273 TraceCheckUtils]: 7: Hoare triple {24201#(and (<= ULTIMATE.start_main_~i~6 6) (<= 6 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {24202#(and (<= 7 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 7))} is VALID [2019-01-31 15:04:38,972 INFO L273 TraceCheckUtils]: 8: Hoare triple {24202#(and (<= 7 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 7))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {24203#(and (<= ULTIMATE.start_main_~i~6 8) (<= 8 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:04:38,973 INFO L273 TraceCheckUtils]: 9: Hoare triple {24203#(and (<= ULTIMATE.start_main_~i~6 8) (<= 8 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {24204#(and (<= ULTIMATE.start_main_~i~6 9) (<= 9 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:04:38,974 INFO L273 TraceCheckUtils]: 10: Hoare triple {24204#(and (<= ULTIMATE.start_main_~i~6 9) (<= 9 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {24205#(and (<= ULTIMATE.start_main_~i~6 10) (<= 10 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:04:38,975 INFO L273 TraceCheckUtils]: 11: Hoare triple {24205#(and (<= ULTIMATE.start_main_~i~6 10) (<= 10 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {24206#(and (<= 11 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 11))} is VALID [2019-01-31 15:04:38,976 INFO L273 TraceCheckUtils]: 12: Hoare triple {24206#(and (<= 11 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 11))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {24207#(and (<= ULTIMATE.start_main_~i~6 12) (<= 12 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:04:38,977 INFO L273 TraceCheckUtils]: 13: Hoare triple {24207#(and (<= ULTIMATE.start_main_~i~6 12) (<= 12 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {24208#(and (<= ULTIMATE.start_main_~i~6 13) (<= 13 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:04:38,978 INFO L273 TraceCheckUtils]: 14: Hoare triple {24208#(and (<= ULTIMATE.start_main_~i~6 13) (<= 13 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {24209#(and (<= ULTIMATE.start_main_~i~6 14) (<= 14 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:04:38,979 INFO L273 TraceCheckUtils]: 15: Hoare triple {24209#(and (<= ULTIMATE.start_main_~i~6 14) (<= 14 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {24210#(and (<= 15 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 15))} is VALID [2019-01-31 15:04:38,980 INFO L273 TraceCheckUtils]: 16: Hoare triple {24210#(and (<= 15 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 15))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {24211#(and (<= 16 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 16))} is VALID [2019-01-31 15:04:38,981 INFO L273 TraceCheckUtils]: 17: Hoare triple {24211#(and (<= 16 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 16))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {24212#(and (<= ULTIMATE.start_main_~i~6 17) (<= 17 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:04:38,982 INFO L273 TraceCheckUtils]: 18: Hoare triple {24212#(and (<= ULTIMATE.start_main_~i~6 17) (<= 17 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {24213#(and (<= ULTIMATE.start_main_~i~6 18) (<= 18 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:04:38,983 INFO L273 TraceCheckUtils]: 19: Hoare triple {24213#(and (<= ULTIMATE.start_main_~i~6 18) (<= 18 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {24214#(and (<= ULTIMATE.start_main_~i~6 19) (<= 19 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:04:38,984 INFO L273 TraceCheckUtils]: 20: Hoare triple {24214#(and (<= ULTIMATE.start_main_~i~6 19) (<= 19 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {24215#(and (<= ULTIMATE.start_main_~i~6 20) (<= 20 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:04:38,984 INFO L273 TraceCheckUtils]: 21: Hoare triple {24215#(and (<= ULTIMATE.start_main_~i~6 20) (<= 20 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {24216#(and (<= ULTIMATE.start_main_~i~6 21) (<= 21 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:04:38,985 INFO L273 TraceCheckUtils]: 22: Hoare triple {24216#(and (<= ULTIMATE.start_main_~i~6 21) (<= 21 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {24217#(and (<= 22 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 22))} is VALID [2019-01-31 15:04:38,986 INFO L273 TraceCheckUtils]: 23: Hoare triple {24217#(and (<= 22 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 22))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {24218#(and (<= 23 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 23))} is VALID [2019-01-31 15:04:38,987 INFO L273 TraceCheckUtils]: 24: Hoare triple {24218#(and (<= 23 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 23))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {24219#(and (<= ULTIMATE.start_main_~i~6 24) (<= 24 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:04:38,988 INFO L273 TraceCheckUtils]: 25: Hoare triple {24219#(and (<= ULTIMATE.start_main_~i~6 24) (<= 24 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {24220#(and (<= ULTIMATE.start_main_~i~6 25) (<= 25 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:04:38,989 INFO L273 TraceCheckUtils]: 26: Hoare triple {24220#(and (<= ULTIMATE.start_main_~i~6 25) (<= 25 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {24221#(and (<= 26 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 26))} is VALID [2019-01-31 15:04:38,991 INFO L273 TraceCheckUtils]: 27: Hoare triple {24221#(and (<= 26 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 26))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {24222#(and (<= ULTIMATE.start_main_~i~6 27) (<= 27 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:04:38,992 INFO L273 TraceCheckUtils]: 28: Hoare triple {24222#(and (<= ULTIMATE.start_main_~i~6 27) (<= 27 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {24223#(and (<= ULTIMATE.start_main_~i~6 28) (<= 28 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:04:38,993 INFO L273 TraceCheckUtils]: 29: Hoare triple {24223#(and (<= ULTIMATE.start_main_~i~6 28) (<= 28 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {24224#(and (<= 29 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 29))} is VALID [2019-01-31 15:04:38,994 INFO L273 TraceCheckUtils]: 30: Hoare triple {24224#(and (<= 29 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 29))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {24225#(or (not (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 1))) (and (<= 30 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 30)))} is VALID [2019-01-31 15:04:38,995 INFO L273 TraceCheckUtils]: 31: Hoare triple {24225#(or (not (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 1))) (and (<= 30 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 30)))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {24226#(or (= 31 ULTIMATE.start_main_~MAX~6) (<= (+ ULTIMATE.start_main_~i~6 1) ULTIMATE.start_main_~MAX~6))} is VALID [2019-01-31 15:04:38,996 INFO L273 TraceCheckUtils]: 32: Hoare triple {24226#(or (= 31 ULTIMATE.start_main_~MAX~6) (<= (+ ULTIMATE.start_main_~i~6 1) ULTIMATE.start_main_~MAX~6))} assume !(main_~i~6 < main_~MAX~6);main_~str1~6 := main_~str1~6[main_~MAX~6 - 1 := 0];main_~j~6 := 0;main_~i~6 := main_~MAX~6 - 1; {24227#(= (+ ULTIMATE.start_main_~j~6 31) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:04:38,998 INFO L273 TraceCheckUtils]: 33: Hoare triple {24227#(= (+ ULTIMATE.start_main_~j~6 31) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {24228#(= (+ ULTIMATE.start_main_~j~6 30) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:04:38,999 INFO L273 TraceCheckUtils]: 34: Hoare triple {24228#(= (+ ULTIMATE.start_main_~j~6 30) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {24229#(= (+ ULTIMATE.start_main_~j~6 29) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:04:39,000 INFO L273 TraceCheckUtils]: 35: Hoare triple {24229#(= (+ ULTIMATE.start_main_~j~6 29) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {24230#(= (+ ULTIMATE.start_main_~j~6 28) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:04:39,001 INFO L273 TraceCheckUtils]: 36: Hoare triple {24230#(= (+ ULTIMATE.start_main_~j~6 28) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {24231#(= (+ ULTIMATE.start_main_~j~6 27) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:04:39,002 INFO L273 TraceCheckUtils]: 37: Hoare triple {24231#(= (+ ULTIMATE.start_main_~j~6 27) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {24232#(= (+ ULTIMATE.start_main_~j~6 26) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:04:39,003 INFO L273 TraceCheckUtils]: 38: Hoare triple {24232#(= (+ ULTIMATE.start_main_~j~6 26) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {24233#(= (+ ULTIMATE.start_main_~j~6 25) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:04:39,004 INFO L273 TraceCheckUtils]: 39: Hoare triple {24233#(= (+ ULTIMATE.start_main_~j~6 25) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {24234#(= (+ ULTIMATE.start_main_~j~6 24) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:04:39,005 INFO L273 TraceCheckUtils]: 40: Hoare triple {24234#(= (+ ULTIMATE.start_main_~j~6 24) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {24235#(= (+ ULTIMATE.start_main_~j~6 23) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:04:39,006 INFO L273 TraceCheckUtils]: 41: Hoare triple {24235#(= (+ ULTIMATE.start_main_~j~6 23) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {24236#(= (+ ULTIMATE.start_main_~j~6 22) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:04:39,008 INFO L273 TraceCheckUtils]: 42: Hoare triple {24236#(= (+ ULTIMATE.start_main_~j~6 22) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {24237#(= (+ ULTIMATE.start_main_~j~6 21) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:04:39,010 INFO L273 TraceCheckUtils]: 43: Hoare triple {24237#(= (+ ULTIMATE.start_main_~j~6 21) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {24238#(= (+ ULTIMATE.start_main_~j~6 20) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:04:39,011 INFO L273 TraceCheckUtils]: 44: Hoare triple {24238#(= (+ ULTIMATE.start_main_~j~6 20) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {24239#(= (+ ULTIMATE.start_main_~j~6 19) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:04:39,012 INFO L273 TraceCheckUtils]: 45: Hoare triple {24239#(= (+ ULTIMATE.start_main_~j~6 19) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {24240#(= (+ ULTIMATE.start_main_~j~6 18) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:04:39,012 INFO L273 TraceCheckUtils]: 46: Hoare triple {24240#(= (+ ULTIMATE.start_main_~j~6 18) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {24241#(= (+ ULTIMATE.start_main_~j~6 17) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:04:39,014 INFO L273 TraceCheckUtils]: 47: Hoare triple {24241#(= (+ ULTIMATE.start_main_~j~6 17) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {24242#(= (+ ULTIMATE.start_main_~j~6 16) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:04:39,015 INFO L273 TraceCheckUtils]: 48: Hoare triple {24242#(= (+ ULTIMATE.start_main_~j~6 16) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {24243#(= (+ ULTIMATE.start_main_~j~6 15) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:04:39,016 INFO L273 TraceCheckUtils]: 49: Hoare triple {24243#(= (+ ULTIMATE.start_main_~j~6 15) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {24244#(= (+ ULTIMATE.start_main_~j~6 14) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:04:39,017 INFO L273 TraceCheckUtils]: 50: Hoare triple {24244#(= (+ ULTIMATE.start_main_~j~6 14) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {24245#(= (+ ULTIMATE.start_main_~j~6 13) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:04:39,018 INFO L273 TraceCheckUtils]: 51: Hoare triple {24245#(= (+ ULTIMATE.start_main_~j~6 13) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {24246#(= (+ ULTIMATE.start_main_~j~6 12) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:04:39,019 INFO L273 TraceCheckUtils]: 52: Hoare triple {24246#(= (+ ULTIMATE.start_main_~j~6 12) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {24247#(= (+ ULTIMATE.start_main_~j~6 11) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:04:39,020 INFO L273 TraceCheckUtils]: 53: Hoare triple {24247#(= (+ ULTIMATE.start_main_~j~6 11) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {24248#(= (+ ULTIMATE.start_main_~j~6 10) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:04:39,021 INFO L273 TraceCheckUtils]: 54: Hoare triple {24248#(= (+ ULTIMATE.start_main_~j~6 10) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {24249#(= (+ ULTIMATE.start_main_~j~6 9) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:04:39,022 INFO L273 TraceCheckUtils]: 55: Hoare triple {24249#(= (+ ULTIMATE.start_main_~j~6 9) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {24250#(= (+ ULTIMATE.start_main_~j~6 8) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:04:39,023 INFO L273 TraceCheckUtils]: 56: Hoare triple {24250#(= (+ ULTIMATE.start_main_~j~6 8) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {24251#(= (+ ULTIMATE.start_main_~j~6 7) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:04:39,024 INFO L273 TraceCheckUtils]: 57: Hoare triple {24251#(= (+ ULTIMATE.start_main_~j~6 7) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {24252#(= (+ ULTIMATE.start_main_~j~6 6) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:04:39,025 INFO L273 TraceCheckUtils]: 58: Hoare triple {24252#(= (+ ULTIMATE.start_main_~j~6 6) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {24253#(= (+ ULTIMATE.start_main_~j~6 5) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:04:39,026 INFO L273 TraceCheckUtils]: 59: Hoare triple {24253#(= (+ ULTIMATE.start_main_~j~6 5) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {24254#(= (+ ULTIMATE.start_main_~j~6 4) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:04:39,027 INFO L273 TraceCheckUtils]: 60: Hoare triple {24254#(= (+ ULTIMATE.start_main_~j~6 4) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {24255#(= (+ ULTIMATE.start_main_~j~6 3) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:04:39,028 INFO L273 TraceCheckUtils]: 61: Hoare triple {24255#(= (+ ULTIMATE.start_main_~j~6 3) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {24256#(= (+ ULTIMATE.start_main_~j~6 2) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:04:39,030 INFO L273 TraceCheckUtils]: 62: Hoare triple {24256#(= (+ ULTIMATE.start_main_~j~6 2) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {24257#(= (+ ULTIMATE.start_main_~j~6 1) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:04:39,032 INFO L273 TraceCheckUtils]: 63: Hoare triple {24257#(= (+ ULTIMATE.start_main_~j~6 1) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {24258#(= (select ULTIMATE.start_main_~str1~6 0) (select ULTIMATE.start_main_~str2~6 (+ ULTIMATE.start_main_~MAX~6 (- 1))))} is VALID [2019-01-31 15:04:39,033 INFO L273 TraceCheckUtils]: 64: Hoare triple {24258#(= (select ULTIMATE.start_main_~str1~6 0) (select ULTIMATE.start_main_~str2~6 (+ ULTIMATE.start_main_~MAX~6 (- 1))))} assume !(main_~i~6 >= 0);main_~j~6 := main_~MAX~6 - 1;main_~i~6 := 0;assume !!(main_~i~6 < main_~MAX~6);__VERIFIER_assert_#in~cond := (if main_~str1~6[main_~i~6] == main_~str2~6[main_~j~6] then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond;assume __VERIFIER_assert_~cond == 0;assume !false; {24194#false} is VALID [2019-01-31 15:04:39,033 INFO L273 TraceCheckUtils]: 65: Hoare triple {24194#false} assume !false; {24194#false} is VALID [2019-01-31 15:04:39,047 INFO L134 CoverageAnalysis]: Checked inductivity of 992 backedges. 0 proven. 992 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-31 15:04:39,047 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-31 15:04:39,047 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-01-31 15:04:39,047 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-01-31 15:04:39,048 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-01-31 15:04:39,048 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-31 15:04:39,048 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 47 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 47 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-01-31 15:04:39,055 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-31 15:04:39,056 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2019-01-31 15:04:39,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-31 15:04:39,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-31 15:04:39,148 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-31 15:04:41,802 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2019-01-31 15:04:41,803 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-01-31 15:04:41,809 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-31 15:04:41,810 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:15, output treesize:14 [2019-01-31 15:04:41,812 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-01-31 15:04:41,812 WARN L398 uantifierElimination]: Input elimination task: ∃ [v_ULTIMATE.start_main_~str2~6_727]. (and (= (store v_ULTIMATE.start_main_~str2~6_727 30 (select ULTIMATE.start_main_~str1~6 0)) ULTIMATE.start_main_~str2~6) (<= 31 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 31)) [2019-01-31 15:04:41,813 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (and (<= 31 ULTIMATE.start_main_~MAX~6) (= (select ULTIMATE.start_main_~str2~6 30) (select ULTIMATE.start_main_~str1~6 0)) (<= ULTIMATE.start_main_~MAX~6 31)) [2019-01-31 15:04:41,904 INFO L273 TraceCheckUtils]: 0: Hoare triple {24193#true} havoc main_#res;havoc main_#t~nondet0, main_#t~nondet2, main_#t~post1, main_#t~post4, main_#t~post3, main_#t~post6, main_#t~post5, main_~MAX~6, main_~str1~6, main_~str2~6, main_~cont~6, main_~i~6, main_~j~6;main_~MAX~6 := (if main_#t~nondet0 % 4294967296 % 4294967296 <= 2147483647 then main_#t~nondet0 % 4294967296 % 4294967296 else main_#t~nondet0 % 4294967296 % 4294967296 - 4294967296);havoc main_#t~nondet0;havoc main_~str1~6;havoc main_~str2~6;havoc main_~cont~6;havoc main_~i~6;havoc main_~j~6;main_~cont~6 := 0;main_~i~6 := 0; {24195#(and (<= ULTIMATE.start_main_~i~6 0) (<= 0 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:04:41,905 INFO L273 TraceCheckUtils]: 1: Hoare triple {24195#(and (<= ULTIMATE.start_main_~i~6 0) (<= 0 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {24196#(and (<= ULTIMATE.start_main_~i~6 1) (<= 1 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:04:41,906 INFO L273 TraceCheckUtils]: 2: Hoare triple {24196#(and (<= ULTIMATE.start_main_~i~6 1) (<= 1 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {24197#(and (<= ULTIMATE.start_main_~i~6 2) (<= 2 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:04:41,907 INFO L273 TraceCheckUtils]: 3: Hoare triple {24197#(and (<= ULTIMATE.start_main_~i~6 2) (<= 2 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {24198#(and (<= 3 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 3))} is VALID [2019-01-31 15:04:41,908 INFO L273 TraceCheckUtils]: 4: Hoare triple {24198#(and (<= 3 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 3))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {24199#(and (<= ULTIMATE.start_main_~i~6 4) (<= 4 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:04:41,909 INFO L273 TraceCheckUtils]: 5: Hoare triple {24199#(and (<= ULTIMATE.start_main_~i~6 4) (<= 4 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {24200#(and (<= 5 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 5))} is VALID [2019-01-31 15:04:41,910 INFO L273 TraceCheckUtils]: 6: Hoare triple {24200#(and (<= 5 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 5))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {24201#(and (<= ULTIMATE.start_main_~i~6 6) (<= 6 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:04:41,911 INFO L273 TraceCheckUtils]: 7: Hoare triple {24201#(and (<= ULTIMATE.start_main_~i~6 6) (<= 6 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {24202#(and (<= 7 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 7))} is VALID [2019-01-31 15:04:41,912 INFO L273 TraceCheckUtils]: 8: Hoare triple {24202#(and (<= 7 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 7))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {24203#(and (<= ULTIMATE.start_main_~i~6 8) (<= 8 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:04:41,913 INFO L273 TraceCheckUtils]: 9: Hoare triple {24203#(and (<= ULTIMATE.start_main_~i~6 8) (<= 8 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {24204#(and (<= ULTIMATE.start_main_~i~6 9) (<= 9 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:04:41,914 INFO L273 TraceCheckUtils]: 10: Hoare triple {24204#(and (<= ULTIMATE.start_main_~i~6 9) (<= 9 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {24205#(and (<= ULTIMATE.start_main_~i~6 10) (<= 10 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:04:41,915 INFO L273 TraceCheckUtils]: 11: Hoare triple {24205#(and (<= ULTIMATE.start_main_~i~6 10) (<= 10 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {24206#(and (<= 11 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 11))} is VALID [2019-01-31 15:04:41,916 INFO L273 TraceCheckUtils]: 12: Hoare triple {24206#(and (<= 11 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 11))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {24207#(and (<= ULTIMATE.start_main_~i~6 12) (<= 12 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:04:41,917 INFO L273 TraceCheckUtils]: 13: Hoare triple {24207#(and (<= ULTIMATE.start_main_~i~6 12) (<= 12 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {24208#(and (<= ULTIMATE.start_main_~i~6 13) (<= 13 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:04:41,918 INFO L273 TraceCheckUtils]: 14: Hoare triple {24208#(and (<= ULTIMATE.start_main_~i~6 13) (<= 13 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {24209#(and (<= ULTIMATE.start_main_~i~6 14) (<= 14 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:04:41,918 INFO L273 TraceCheckUtils]: 15: Hoare triple {24209#(and (<= ULTIMATE.start_main_~i~6 14) (<= 14 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {24210#(and (<= 15 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 15))} is VALID [2019-01-31 15:04:41,919 INFO L273 TraceCheckUtils]: 16: Hoare triple {24210#(and (<= 15 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 15))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {24211#(and (<= 16 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 16))} is VALID [2019-01-31 15:04:41,920 INFO L273 TraceCheckUtils]: 17: Hoare triple {24211#(and (<= 16 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 16))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {24212#(and (<= ULTIMATE.start_main_~i~6 17) (<= 17 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:04:41,921 INFO L273 TraceCheckUtils]: 18: Hoare triple {24212#(and (<= ULTIMATE.start_main_~i~6 17) (<= 17 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {24213#(and (<= ULTIMATE.start_main_~i~6 18) (<= 18 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:04:41,922 INFO L273 TraceCheckUtils]: 19: Hoare triple {24213#(and (<= ULTIMATE.start_main_~i~6 18) (<= 18 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {24214#(and (<= ULTIMATE.start_main_~i~6 19) (<= 19 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:04:41,923 INFO L273 TraceCheckUtils]: 20: Hoare triple {24214#(and (<= ULTIMATE.start_main_~i~6 19) (<= 19 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {24215#(and (<= ULTIMATE.start_main_~i~6 20) (<= 20 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:04:41,924 INFO L273 TraceCheckUtils]: 21: Hoare triple {24215#(and (<= ULTIMATE.start_main_~i~6 20) (<= 20 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {24216#(and (<= ULTIMATE.start_main_~i~6 21) (<= 21 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:04:41,925 INFO L273 TraceCheckUtils]: 22: Hoare triple {24216#(and (<= ULTIMATE.start_main_~i~6 21) (<= 21 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {24217#(and (<= 22 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 22))} is VALID [2019-01-31 15:04:41,926 INFO L273 TraceCheckUtils]: 23: Hoare triple {24217#(and (<= 22 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 22))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {24218#(and (<= 23 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 23))} is VALID [2019-01-31 15:04:41,927 INFO L273 TraceCheckUtils]: 24: Hoare triple {24218#(and (<= 23 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 23))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {24219#(and (<= ULTIMATE.start_main_~i~6 24) (<= 24 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:04:41,928 INFO L273 TraceCheckUtils]: 25: Hoare triple {24219#(and (<= ULTIMATE.start_main_~i~6 24) (<= 24 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {24220#(and (<= ULTIMATE.start_main_~i~6 25) (<= 25 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:04:41,929 INFO L273 TraceCheckUtils]: 26: Hoare triple {24220#(and (<= ULTIMATE.start_main_~i~6 25) (<= 25 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {24221#(and (<= 26 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 26))} is VALID [2019-01-31 15:04:41,930 INFO L273 TraceCheckUtils]: 27: Hoare triple {24221#(and (<= 26 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 26))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {24222#(and (<= ULTIMATE.start_main_~i~6 27) (<= 27 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:04:41,931 INFO L273 TraceCheckUtils]: 28: Hoare triple {24222#(and (<= ULTIMATE.start_main_~i~6 27) (<= 27 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {24223#(and (<= ULTIMATE.start_main_~i~6 28) (<= 28 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:04:41,932 INFO L273 TraceCheckUtils]: 29: Hoare triple {24223#(and (<= ULTIMATE.start_main_~i~6 28) (<= 28 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {24224#(and (<= 29 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 29))} is VALID [2019-01-31 15:04:41,932 INFO L273 TraceCheckUtils]: 30: Hoare triple {24224#(and (<= 29 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 29))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {24352#(and (<= 30 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 30))} is VALID [2019-01-31 15:04:41,933 INFO L273 TraceCheckUtils]: 31: Hoare triple {24352#(and (<= 30 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 30))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {24356#(and (<= 31 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~i~6 31))} is VALID [2019-01-31 15:04:41,934 INFO L273 TraceCheckUtils]: 32: Hoare triple {24356#(and (<= 31 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~i~6 31))} assume !(main_~i~6 < main_~MAX~6);main_~str1~6 := main_~str1~6[main_~MAX~6 - 1 := 0];main_~j~6 := 0;main_~i~6 := main_~MAX~6 - 1; {24360#(and (<= 31 ULTIMATE.start_main_~MAX~6) (= ULTIMATE.start_main_~j~6 0) (<= ULTIMATE.start_main_~MAX~6 31))} is VALID [2019-01-31 15:04:41,935 INFO L273 TraceCheckUtils]: 33: Hoare triple {24360#(and (<= 31 ULTIMATE.start_main_~MAX~6) (= ULTIMATE.start_main_~j~6 0) (<= ULTIMATE.start_main_~MAX~6 31))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {24364#(and (<= 31 ULTIMATE.start_main_~MAX~6) (= ULTIMATE.start_main_~j~6 1) (<= ULTIMATE.start_main_~MAX~6 31))} is VALID [2019-01-31 15:04:41,936 INFO L273 TraceCheckUtils]: 34: Hoare triple {24364#(and (<= 31 ULTIMATE.start_main_~MAX~6) (= ULTIMATE.start_main_~j~6 1) (<= ULTIMATE.start_main_~MAX~6 31))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {24368#(and (<= 31 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 31) (= ULTIMATE.start_main_~j~6 2))} is VALID [2019-01-31 15:04:41,937 INFO L273 TraceCheckUtils]: 35: Hoare triple {24368#(and (<= 31 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 31) (= ULTIMATE.start_main_~j~6 2))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {24372#(and (<= 31 ULTIMATE.start_main_~MAX~6) (= ULTIMATE.start_main_~j~6 3) (<= ULTIMATE.start_main_~MAX~6 31))} is VALID [2019-01-31 15:04:41,938 INFO L273 TraceCheckUtils]: 36: Hoare triple {24372#(and (<= 31 ULTIMATE.start_main_~MAX~6) (= ULTIMATE.start_main_~j~6 3) (<= ULTIMATE.start_main_~MAX~6 31))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {24376#(and (<= 31 ULTIMATE.start_main_~MAX~6) (= ULTIMATE.start_main_~j~6 4) (<= ULTIMATE.start_main_~MAX~6 31))} is VALID [2019-01-31 15:04:41,939 INFO L273 TraceCheckUtils]: 37: Hoare triple {24376#(and (<= 31 ULTIMATE.start_main_~MAX~6) (= ULTIMATE.start_main_~j~6 4) (<= ULTIMATE.start_main_~MAX~6 31))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {24380#(and (= ULTIMATE.start_main_~j~6 5) (<= 31 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 31))} is VALID [2019-01-31 15:04:41,939 INFO L273 TraceCheckUtils]: 38: Hoare triple {24380#(and (= ULTIMATE.start_main_~j~6 5) (<= 31 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 31))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {24384#(and (<= 31 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 31) (= ULTIMATE.start_main_~j~6 6))} is VALID [2019-01-31 15:04:41,940 INFO L273 TraceCheckUtils]: 39: Hoare triple {24384#(and (<= 31 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 31) (= ULTIMATE.start_main_~j~6 6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {24388#(and (= ULTIMATE.start_main_~j~6 7) (<= 31 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 31))} is VALID [2019-01-31 15:04:41,941 INFO L273 TraceCheckUtils]: 40: Hoare triple {24388#(and (= ULTIMATE.start_main_~j~6 7) (<= 31 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 31))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {24392#(and (<= 31 ULTIMATE.start_main_~MAX~6) (= ULTIMATE.start_main_~j~6 8) (<= ULTIMATE.start_main_~MAX~6 31))} is VALID [2019-01-31 15:04:41,942 INFO L273 TraceCheckUtils]: 41: Hoare triple {24392#(and (<= 31 ULTIMATE.start_main_~MAX~6) (= ULTIMATE.start_main_~j~6 8) (<= ULTIMATE.start_main_~MAX~6 31))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {24396#(and (= ULTIMATE.start_main_~j~6 9) (<= 31 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 31))} is VALID [2019-01-31 15:04:41,943 INFO L273 TraceCheckUtils]: 42: Hoare triple {24396#(and (= ULTIMATE.start_main_~j~6 9) (<= 31 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 31))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {24400#(and (= ULTIMATE.start_main_~j~6 10) (<= 31 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 31))} is VALID [2019-01-31 15:04:41,944 INFO L273 TraceCheckUtils]: 43: Hoare triple {24400#(and (= ULTIMATE.start_main_~j~6 10) (<= 31 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 31))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {24404#(and (<= 31 ULTIMATE.start_main_~MAX~6) (= ULTIMATE.start_main_~j~6 11) (<= ULTIMATE.start_main_~MAX~6 31))} is VALID [2019-01-31 15:04:41,944 INFO L273 TraceCheckUtils]: 44: Hoare triple {24404#(and (<= 31 ULTIMATE.start_main_~MAX~6) (= ULTIMATE.start_main_~j~6 11) (<= ULTIMATE.start_main_~MAX~6 31))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {24408#(and (= ULTIMATE.start_main_~j~6 12) (<= 31 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 31))} is VALID [2019-01-31 15:04:41,945 INFO L273 TraceCheckUtils]: 45: Hoare triple {24408#(and (= ULTIMATE.start_main_~j~6 12) (<= 31 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 31))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {24412#(and (<= 31 ULTIMATE.start_main_~MAX~6) (= ULTIMATE.start_main_~j~6 13) (<= ULTIMATE.start_main_~MAX~6 31))} is VALID [2019-01-31 15:04:41,946 INFO L273 TraceCheckUtils]: 46: Hoare triple {24412#(and (<= 31 ULTIMATE.start_main_~MAX~6) (= ULTIMATE.start_main_~j~6 13) (<= ULTIMATE.start_main_~MAX~6 31))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {24416#(and (<= 31 ULTIMATE.start_main_~MAX~6) (= ULTIMATE.start_main_~j~6 14) (<= ULTIMATE.start_main_~MAX~6 31))} is VALID [2019-01-31 15:04:41,947 INFO L273 TraceCheckUtils]: 47: Hoare triple {24416#(and (<= 31 ULTIMATE.start_main_~MAX~6) (= ULTIMATE.start_main_~j~6 14) (<= ULTIMATE.start_main_~MAX~6 31))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {24420#(and (<= 31 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 31) (= ULTIMATE.start_main_~j~6 15))} is VALID [2019-01-31 15:04:41,948 INFO L273 TraceCheckUtils]: 48: Hoare triple {24420#(and (<= 31 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 31) (= ULTIMATE.start_main_~j~6 15))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {24424#(and (<= 31 ULTIMATE.start_main_~MAX~6) (= ULTIMATE.start_main_~j~6 16) (<= ULTIMATE.start_main_~MAX~6 31))} is VALID [2019-01-31 15:04:41,948 INFO L273 TraceCheckUtils]: 49: Hoare triple {24424#(and (<= 31 ULTIMATE.start_main_~MAX~6) (= ULTIMATE.start_main_~j~6 16) (<= ULTIMATE.start_main_~MAX~6 31))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {24428#(and (<= 31 ULTIMATE.start_main_~MAX~6) (= ULTIMATE.start_main_~j~6 17) (<= ULTIMATE.start_main_~MAX~6 31))} is VALID [2019-01-31 15:04:41,949 INFO L273 TraceCheckUtils]: 50: Hoare triple {24428#(and (<= 31 ULTIMATE.start_main_~MAX~6) (= ULTIMATE.start_main_~j~6 17) (<= ULTIMATE.start_main_~MAX~6 31))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {24432#(and (= ULTIMATE.start_main_~j~6 18) (<= 31 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 31))} is VALID [2019-01-31 15:04:41,950 INFO L273 TraceCheckUtils]: 51: Hoare triple {24432#(and (= ULTIMATE.start_main_~j~6 18) (<= 31 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 31))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {24436#(and (= ULTIMATE.start_main_~j~6 19) (<= 31 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 31))} is VALID [2019-01-31 15:04:41,951 INFO L273 TraceCheckUtils]: 52: Hoare triple {24436#(and (= ULTIMATE.start_main_~j~6 19) (<= 31 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 31))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {24440#(and (<= 31 ULTIMATE.start_main_~MAX~6) (= ULTIMATE.start_main_~j~6 20) (<= ULTIMATE.start_main_~MAX~6 31))} is VALID [2019-01-31 15:04:41,951 INFO L273 TraceCheckUtils]: 53: Hoare triple {24440#(and (<= 31 ULTIMATE.start_main_~MAX~6) (= ULTIMATE.start_main_~j~6 20) (<= ULTIMATE.start_main_~MAX~6 31))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {24444#(and (= ULTIMATE.start_main_~j~6 21) (<= 31 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 31))} is VALID [2019-01-31 15:04:41,952 INFO L273 TraceCheckUtils]: 54: Hoare triple {24444#(and (= ULTIMATE.start_main_~j~6 21) (<= 31 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 31))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {24448#(and (<= 31 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 31) (= ULTIMATE.start_main_~j~6 22))} is VALID [2019-01-31 15:04:41,953 INFO L273 TraceCheckUtils]: 55: Hoare triple {24448#(and (<= 31 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 31) (= ULTIMATE.start_main_~j~6 22))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {24452#(and (<= 31 ULTIMATE.start_main_~MAX~6) (= ULTIMATE.start_main_~j~6 23) (<= ULTIMATE.start_main_~MAX~6 31))} is VALID [2019-01-31 15:04:41,954 INFO L273 TraceCheckUtils]: 56: Hoare triple {24452#(and (<= 31 ULTIMATE.start_main_~MAX~6) (= ULTIMATE.start_main_~j~6 23) (<= ULTIMATE.start_main_~MAX~6 31))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {24456#(and (<= 31 ULTIMATE.start_main_~MAX~6) (= ULTIMATE.start_main_~j~6 24) (<= ULTIMATE.start_main_~MAX~6 31))} is VALID [2019-01-31 15:04:41,955 INFO L273 TraceCheckUtils]: 57: Hoare triple {24456#(and (<= 31 ULTIMATE.start_main_~MAX~6) (= ULTIMATE.start_main_~j~6 24) (<= ULTIMATE.start_main_~MAX~6 31))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {24460#(and (= ULTIMATE.start_main_~j~6 25) (<= 31 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 31))} is VALID [2019-01-31 15:04:41,955 INFO L273 TraceCheckUtils]: 58: Hoare triple {24460#(and (= ULTIMATE.start_main_~j~6 25) (<= 31 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 31))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {24464#(and (= ULTIMATE.start_main_~j~6 26) (<= 31 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 31))} is VALID [2019-01-31 15:04:41,956 INFO L273 TraceCheckUtils]: 59: Hoare triple {24464#(and (= ULTIMATE.start_main_~j~6 26) (<= 31 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 31))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {24468#(and (= ULTIMATE.start_main_~j~6 27) (<= 31 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 31))} is VALID [2019-01-31 15:04:41,957 INFO L273 TraceCheckUtils]: 60: Hoare triple {24468#(and (= ULTIMATE.start_main_~j~6 27) (<= 31 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 31))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {24472#(and (<= 31 ULTIMATE.start_main_~MAX~6) (= ULTIMATE.start_main_~j~6 28) (<= ULTIMATE.start_main_~MAX~6 31))} is VALID [2019-01-31 15:04:41,958 INFO L273 TraceCheckUtils]: 61: Hoare triple {24472#(and (<= 31 ULTIMATE.start_main_~MAX~6) (= ULTIMATE.start_main_~j~6 28) (<= ULTIMATE.start_main_~MAX~6 31))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {24476#(and (<= 31 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 31) (= ULTIMATE.start_main_~j~6 29))} is VALID [2019-01-31 15:04:41,958 INFO L273 TraceCheckUtils]: 62: Hoare triple {24476#(and (<= 31 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 31) (= ULTIMATE.start_main_~j~6 29))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {24480#(and (<= 31 ULTIMATE.start_main_~MAX~6) (= ULTIMATE.start_main_~j~6 30) (<= ULTIMATE.start_main_~MAX~6 31))} is VALID [2019-01-31 15:04:41,959 INFO L273 TraceCheckUtils]: 63: Hoare triple {24480#(and (<= 31 ULTIMATE.start_main_~MAX~6) (= ULTIMATE.start_main_~j~6 30) (<= ULTIMATE.start_main_~MAX~6 31))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {24484#(and (<= 31 ULTIMATE.start_main_~MAX~6) (= (select ULTIMATE.start_main_~str2~6 30) (select ULTIMATE.start_main_~str1~6 0)) (<= ULTIMATE.start_main_~MAX~6 31))} is VALID [2019-01-31 15:04:41,960 INFO L273 TraceCheckUtils]: 64: Hoare triple {24484#(and (<= 31 ULTIMATE.start_main_~MAX~6) (= (select ULTIMATE.start_main_~str2~6 30) (select ULTIMATE.start_main_~str1~6 0)) (<= ULTIMATE.start_main_~MAX~6 31))} assume !(main_~i~6 >= 0);main_~j~6 := main_~MAX~6 - 1;main_~i~6 := 0;assume !!(main_~i~6 < main_~MAX~6);__VERIFIER_assert_#in~cond := (if main_~str1~6[main_~i~6] == main_~str2~6[main_~j~6] then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond;assume __VERIFIER_assert_~cond == 0;assume !false; {24194#false} is VALID [2019-01-31 15:04:41,961 INFO L273 TraceCheckUtils]: 65: Hoare triple {24194#false} assume !false; {24194#false} is VALID [2019-01-31 15:04:41,969 INFO L134 CoverageAnalysis]: Checked inductivity of 992 backedges. 0 proven. 992 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-31 15:04:41,969 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2019-01-31 15:04:41,998 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 5 [2019-01-31 15:04:41,999 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-01-31 15:04:42,003 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-31 15:04:42,003 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:14, output treesize:5 [2019-01-31 15:04:42,005 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-01-31 15:04:42,005 WARN L398 uantifierElimination]: Input elimination task: ∀ [ULTIMATE.start_main_~str2~6, ULTIMATE.start_main_~str1~6]. (let ((.cse0 (select ULTIMATE.start_main_~str1~6 0))) (= .cse0 (select (store ULTIMATE.start_main_~str2~6 ULTIMATE.start_main_~j~6 .cse0) (+ ULTIMATE.start_main_~MAX~6 (- 1))))) [2019-01-31 15:04:42,006 WARN L399 uantifierElimination]: ElimStorePlain result: ∀ []. (= (+ ULTIMATE.start_main_~j~6 1) ULTIMATE.start_main_~MAX~6) [2019-01-31 15:04:43,179 INFO L273 TraceCheckUtils]: 65: Hoare triple {24194#false} assume !false; {24194#false} is VALID [2019-01-31 15:04:43,180 INFO L273 TraceCheckUtils]: 64: Hoare triple {24258#(= (select ULTIMATE.start_main_~str1~6 0) (select ULTIMATE.start_main_~str2~6 (+ ULTIMATE.start_main_~MAX~6 (- 1))))} assume !(main_~i~6 >= 0);main_~j~6 := main_~MAX~6 - 1;main_~i~6 := 0;assume !!(main_~i~6 < main_~MAX~6);__VERIFIER_assert_#in~cond := (if main_~str1~6[main_~i~6] == main_~str2~6[main_~j~6] then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond;assume __VERIFIER_assert_~cond == 0;assume !false; {24194#false} is VALID [2019-01-31 15:04:43,180 INFO L273 TraceCheckUtils]: 63: Hoare triple {24257#(= (+ ULTIMATE.start_main_~j~6 1) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {24258#(= (select ULTIMATE.start_main_~str1~6 0) (select ULTIMATE.start_main_~str2~6 (+ ULTIMATE.start_main_~MAX~6 (- 1))))} is VALID [2019-01-31 15:04:43,182 INFO L273 TraceCheckUtils]: 62: Hoare triple {24256#(= (+ ULTIMATE.start_main_~j~6 2) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {24257#(= (+ ULTIMATE.start_main_~j~6 1) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:04:43,183 INFO L273 TraceCheckUtils]: 61: Hoare triple {24255#(= (+ ULTIMATE.start_main_~j~6 3) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {24256#(= (+ ULTIMATE.start_main_~j~6 2) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:04:43,184 INFO L273 TraceCheckUtils]: 60: Hoare triple {24254#(= (+ ULTIMATE.start_main_~j~6 4) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {24255#(= (+ ULTIMATE.start_main_~j~6 3) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:04:43,185 INFO L273 TraceCheckUtils]: 59: Hoare triple {24253#(= (+ ULTIMATE.start_main_~j~6 5) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {24254#(= (+ ULTIMATE.start_main_~j~6 4) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:04:43,186 INFO L273 TraceCheckUtils]: 58: Hoare triple {24252#(= (+ ULTIMATE.start_main_~j~6 6) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {24253#(= (+ ULTIMATE.start_main_~j~6 5) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:04:43,187 INFO L273 TraceCheckUtils]: 57: Hoare triple {24251#(= (+ ULTIMATE.start_main_~j~6 7) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {24252#(= (+ ULTIMATE.start_main_~j~6 6) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:04:43,188 INFO L273 TraceCheckUtils]: 56: Hoare triple {24250#(= (+ ULTIMATE.start_main_~j~6 8) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {24251#(= (+ ULTIMATE.start_main_~j~6 7) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:04:43,189 INFO L273 TraceCheckUtils]: 55: Hoare triple {24249#(= (+ ULTIMATE.start_main_~j~6 9) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {24250#(= (+ ULTIMATE.start_main_~j~6 8) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:04:43,190 INFO L273 TraceCheckUtils]: 54: Hoare triple {24248#(= (+ ULTIMATE.start_main_~j~6 10) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {24249#(= (+ ULTIMATE.start_main_~j~6 9) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:04:43,191 INFO L273 TraceCheckUtils]: 53: Hoare triple {24247#(= (+ ULTIMATE.start_main_~j~6 11) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {24248#(= (+ ULTIMATE.start_main_~j~6 10) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:04:43,192 INFO L273 TraceCheckUtils]: 52: Hoare triple {24246#(= (+ ULTIMATE.start_main_~j~6 12) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {24247#(= (+ ULTIMATE.start_main_~j~6 11) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:04:43,193 INFO L273 TraceCheckUtils]: 51: Hoare triple {24245#(= (+ ULTIMATE.start_main_~j~6 13) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {24246#(= (+ ULTIMATE.start_main_~j~6 12) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:04:43,194 INFO L273 TraceCheckUtils]: 50: Hoare triple {24244#(= (+ ULTIMATE.start_main_~j~6 14) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {24245#(= (+ ULTIMATE.start_main_~j~6 13) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:04:43,195 INFO L273 TraceCheckUtils]: 49: Hoare triple {24243#(= (+ ULTIMATE.start_main_~j~6 15) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {24244#(= (+ ULTIMATE.start_main_~j~6 14) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:04:43,196 INFO L273 TraceCheckUtils]: 48: Hoare triple {24242#(= (+ ULTIMATE.start_main_~j~6 16) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {24243#(= (+ ULTIMATE.start_main_~j~6 15) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:04:43,197 INFO L273 TraceCheckUtils]: 47: Hoare triple {24241#(= (+ ULTIMATE.start_main_~j~6 17) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {24242#(= (+ ULTIMATE.start_main_~j~6 16) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:04:43,200 INFO L273 TraceCheckUtils]: 46: Hoare triple {24240#(= (+ ULTIMATE.start_main_~j~6 18) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {24241#(= (+ ULTIMATE.start_main_~j~6 17) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:04:43,201 INFO L273 TraceCheckUtils]: 45: Hoare triple {24239#(= (+ ULTIMATE.start_main_~j~6 19) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {24240#(= (+ ULTIMATE.start_main_~j~6 18) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:04:43,202 INFO L273 TraceCheckUtils]: 44: Hoare triple {24238#(= (+ ULTIMATE.start_main_~j~6 20) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {24239#(= (+ ULTIMATE.start_main_~j~6 19) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:04:43,202 INFO L273 TraceCheckUtils]: 43: Hoare triple {24237#(= (+ ULTIMATE.start_main_~j~6 21) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {24238#(= (+ ULTIMATE.start_main_~j~6 20) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:04:43,204 INFO L273 TraceCheckUtils]: 42: Hoare triple {24236#(= (+ ULTIMATE.start_main_~j~6 22) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {24237#(= (+ ULTIMATE.start_main_~j~6 21) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:04:43,204 INFO L273 TraceCheckUtils]: 41: Hoare triple {24235#(= (+ ULTIMATE.start_main_~j~6 23) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {24236#(= (+ ULTIMATE.start_main_~j~6 22) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:04:43,206 INFO L273 TraceCheckUtils]: 40: Hoare triple {24234#(= (+ ULTIMATE.start_main_~j~6 24) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {24235#(= (+ ULTIMATE.start_main_~j~6 23) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:04:43,207 INFO L273 TraceCheckUtils]: 39: Hoare triple {24233#(= (+ ULTIMATE.start_main_~j~6 25) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {24234#(= (+ ULTIMATE.start_main_~j~6 24) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:04:43,208 INFO L273 TraceCheckUtils]: 38: Hoare triple {24232#(= (+ ULTIMATE.start_main_~j~6 26) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {24233#(= (+ ULTIMATE.start_main_~j~6 25) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:04:43,210 INFO L273 TraceCheckUtils]: 37: Hoare triple {24231#(= (+ ULTIMATE.start_main_~j~6 27) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {24232#(= (+ ULTIMATE.start_main_~j~6 26) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:04:43,211 INFO L273 TraceCheckUtils]: 36: Hoare triple {24230#(= (+ ULTIMATE.start_main_~j~6 28) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {24231#(= (+ ULTIMATE.start_main_~j~6 27) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:04:43,212 INFO L273 TraceCheckUtils]: 35: Hoare triple {24229#(= (+ ULTIMATE.start_main_~j~6 29) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {24230#(= (+ ULTIMATE.start_main_~j~6 28) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:04:43,213 INFO L273 TraceCheckUtils]: 34: Hoare triple {24228#(= (+ ULTIMATE.start_main_~j~6 30) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {24229#(= (+ ULTIMATE.start_main_~j~6 29) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:04:43,214 INFO L273 TraceCheckUtils]: 33: Hoare triple {24227#(= (+ ULTIMATE.start_main_~j~6 31) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {24228#(= (+ ULTIMATE.start_main_~j~6 30) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:04:43,215 INFO L273 TraceCheckUtils]: 32: Hoare triple {24226#(or (= 31 ULTIMATE.start_main_~MAX~6) (<= (+ ULTIMATE.start_main_~i~6 1) ULTIMATE.start_main_~MAX~6))} assume !(main_~i~6 < main_~MAX~6);main_~str1~6 := main_~str1~6[main_~MAX~6 - 1 := 0];main_~j~6 := 0;main_~i~6 := main_~MAX~6 - 1; {24227#(= (+ ULTIMATE.start_main_~j~6 31) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:04:43,216 INFO L273 TraceCheckUtils]: 31: Hoare triple {24352#(and (<= 30 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 30))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {24226#(or (= 31 ULTIMATE.start_main_~MAX~6) (<= (+ ULTIMATE.start_main_~i~6 1) ULTIMATE.start_main_~MAX~6))} is VALID [2019-01-31 15:04:43,217 INFO L273 TraceCheckUtils]: 30: Hoare triple {24224#(and (<= 29 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 29))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {24352#(and (<= 30 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 30))} is VALID [2019-01-31 15:04:43,218 INFO L273 TraceCheckUtils]: 29: Hoare triple {24223#(and (<= ULTIMATE.start_main_~i~6 28) (<= 28 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {24224#(and (<= 29 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 29))} is VALID [2019-01-31 15:04:43,219 INFO L273 TraceCheckUtils]: 28: Hoare triple {24222#(and (<= ULTIMATE.start_main_~i~6 27) (<= 27 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {24223#(and (<= ULTIMATE.start_main_~i~6 28) (<= 28 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:04:43,220 INFO L273 TraceCheckUtils]: 27: Hoare triple {24221#(and (<= 26 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 26))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {24222#(and (<= ULTIMATE.start_main_~i~6 27) (<= 27 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:04:43,221 INFO L273 TraceCheckUtils]: 26: Hoare triple {24220#(and (<= ULTIMATE.start_main_~i~6 25) (<= 25 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {24221#(and (<= 26 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 26))} is VALID [2019-01-31 15:04:43,222 INFO L273 TraceCheckUtils]: 25: Hoare triple {24219#(and (<= ULTIMATE.start_main_~i~6 24) (<= 24 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {24220#(and (<= ULTIMATE.start_main_~i~6 25) (<= 25 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:04:43,223 INFO L273 TraceCheckUtils]: 24: Hoare triple {24218#(and (<= 23 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 23))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {24219#(and (<= ULTIMATE.start_main_~i~6 24) (<= 24 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:04:43,224 INFO L273 TraceCheckUtils]: 23: Hoare triple {24217#(and (<= 22 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 22))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {24218#(and (<= 23 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 23))} is VALID [2019-01-31 15:04:43,225 INFO L273 TraceCheckUtils]: 22: Hoare triple {24216#(and (<= ULTIMATE.start_main_~i~6 21) (<= 21 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {24217#(and (<= 22 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 22))} is VALID [2019-01-31 15:04:43,226 INFO L273 TraceCheckUtils]: 21: Hoare triple {24215#(and (<= ULTIMATE.start_main_~i~6 20) (<= 20 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {24216#(and (<= ULTIMATE.start_main_~i~6 21) (<= 21 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:04:43,227 INFO L273 TraceCheckUtils]: 20: Hoare triple {24214#(and (<= ULTIMATE.start_main_~i~6 19) (<= 19 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {24215#(and (<= ULTIMATE.start_main_~i~6 20) (<= 20 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:04:43,228 INFO L273 TraceCheckUtils]: 19: Hoare triple {24213#(and (<= ULTIMATE.start_main_~i~6 18) (<= 18 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {24214#(and (<= ULTIMATE.start_main_~i~6 19) (<= 19 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:04:43,229 INFO L273 TraceCheckUtils]: 18: Hoare triple {24212#(and (<= ULTIMATE.start_main_~i~6 17) (<= 17 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {24213#(and (<= ULTIMATE.start_main_~i~6 18) (<= 18 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:04:43,230 INFO L273 TraceCheckUtils]: 17: Hoare triple {24211#(and (<= 16 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 16))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {24212#(and (<= ULTIMATE.start_main_~i~6 17) (<= 17 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:04:43,231 INFO L273 TraceCheckUtils]: 16: Hoare triple {24210#(and (<= 15 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 15))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {24211#(and (<= 16 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 16))} is VALID [2019-01-31 15:04:43,232 INFO L273 TraceCheckUtils]: 15: Hoare triple {24209#(and (<= ULTIMATE.start_main_~i~6 14) (<= 14 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {24210#(and (<= 15 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 15))} is VALID [2019-01-31 15:04:43,233 INFO L273 TraceCheckUtils]: 14: Hoare triple {24208#(and (<= ULTIMATE.start_main_~i~6 13) (<= 13 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {24209#(and (<= ULTIMATE.start_main_~i~6 14) (<= 14 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:04:43,234 INFO L273 TraceCheckUtils]: 13: Hoare triple {24207#(and (<= ULTIMATE.start_main_~i~6 12) (<= 12 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {24208#(and (<= ULTIMATE.start_main_~i~6 13) (<= 13 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:04:43,235 INFO L273 TraceCheckUtils]: 12: Hoare triple {24206#(and (<= 11 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 11))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {24207#(and (<= ULTIMATE.start_main_~i~6 12) (<= 12 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:04:43,236 INFO L273 TraceCheckUtils]: 11: Hoare triple {24205#(and (<= ULTIMATE.start_main_~i~6 10) (<= 10 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {24206#(and (<= 11 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 11))} is VALID [2019-01-31 15:04:43,237 INFO L273 TraceCheckUtils]: 10: Hoare triple {24204#(and (<= ULTIMATE.start_main_~i~6 9) (<= 9 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {24205#(and (<= ULTIMATE.start_main_~i~6 10) (<= 10 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:04:43,238 INFO L273 TraceCheckUtils]: 9: Hoare triple {24203#(and (<= ULTIMATE.start_main_~i~6 8) (<= 8 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {24204#(and (<= ULTIMATE.start_main_~i~6 9) (<= 9 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:04:43,239 INFO L273 TraceCheckUtils]: 8: Hoare triple {24202#(and (<= 7 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 7))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {24203#(and (<= ULTIMATE.start_main_~i~6 8) (<= 8 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:04:43,240 INFO L273 TraceCheckUtils]: 7: Hoare triple {24201#(and (<= ULTIMATE.start_main_~i~6 6) (<= 6 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {24202#(and (<= 7 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 7))} is VALID [2019-01-31 15:04:43,241 INFO L273 TraceCheckUtils]: 6: Hoare triple {24200#(and (<= 5 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 5))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {24201#(and (<= ULTIMATE.start_main_~i~6 6) (<= 6 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:04:43,244 INFO L273 TraceCheckUtils]: 5: Hoare triple {24199#(and (<= ULTIMATE.start_main_~i~6 4) (<= 4 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {24200#(and (<= 5 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 5))} is VALID [2019-01-31 15:04:43,245 INFO L273 TraceCheckUtils]: 4: Hoare triple {24198#(and (<= 3 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 3))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {24199#(and (<= ULTIMATE.start_main_~i~6 4) (<= 4 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:04:43,246 INFO L273 TraceCheckUtils]: 3: Hoare triple {24197#(and (<= ULTIMATE.start_main_~i~6 2) (<= 2 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {24198#(and (<= 3 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 3))} is VALID [2019-01-31 15:04:43,246 INFO L273 TraceCheckUtils]: 2: Hoare triple {24196#(and (<= ULTIMATE.start_main_~i~6 1) (<= 1 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {24197#(and (<= ULTIMATE.start_main_~i~6 2) (<= 2 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:04:43,248 INFO L273 TraceCheckUtils]: 1: Hoare triple {24195#(and (<= ULTIMATE.start_main_~i~6 0) (<= 0 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {24196#(and (<= ULTIMATE.start_main_~i~6 1) (<= 1 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:04:43,248 INFO L273 TraceCheckUtils]: 0: Hoare triple {24193#true} havoc main_#res;havoc main_#t~nondet0, main_#t~nondet2, main_#t~post1, main_#t~post4, main_#t~post3, main_#t~post6, main_#t~post5, main_~MAX~6, main_~str1~6, main_~str2~6, main_~cont~6, main_~i~6, main_~j~6;main_~MAX~6 := (if main_#t~nondet0 % 4294967296 % 4294967296 <= 2147483647 then main_#t~nondet0 % 4294967296 % 4294967296 else main_#t~nondet0 % 4294967296 % 4294967296 - 4294967296);havoc main_#t~nondet0;havoc main_~str1~6;havoc main_~str2~6;havoc main_~cont~6;havoc main_~i~6;havoc main_~j~6;main_~cont~6 := 0;main_~i~6 := 0; {24195#(and (<= ULTIMATE.start_main_~i~6 0) (<= 0 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:04:43,255 INFO L134 CoverageAnalysis]: Checked inductivity of 992 backedges. 0 proven. 992 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-31 15:04:43,274 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-01-31 15:04:43,274 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [65, 65, 65] total 99 [2019-01-31 15:04:43,274 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-01-31 15:04:43,274 INFO L78 Accepts]: Start accepts. Automaton has 100 states. Word has length 66 [2019-01-31 15:04:43,275 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-01-31 15:04:43,275 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 100 states. [2019-01-31 15:04:43,423 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 101 edges. 101 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-01-31 15:04:43,423 INFO L459 AbstractCegarLoop]: Interpolant automaton has 100 states [2019-01-31 15:04:43,423 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 100 interpolants. [2019-01-31 15:04:43,424 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=295, Invalid=9605, Unknown=0, NotChecked=0, Total=9900 [2019-01-31 15:04:43,424 INFO L87 Difference]: Start difference. First operand 67 states and 68 transitions. Second operand 100 states. [2019-01-31 15:05:04,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 15:05:04,912 INFO L93 Difference]: Finished difference Result 102 states and 104 transitions. [2019-01-31 15:05:04,913 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2019-01-31 15:05:04,913 INFO L78 Accepts]: Start accepts. Automaton has 100 states. Word has length 66 [2019-01-31 15:05:04,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-31 15:05:04,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 100 states. [2019-01-31 15:05:04,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 74 transitions. [2019-01-31 15:05:04,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 100 states. [2019-01-31 15:05:04,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 74 transitions. [2019-01-31 15:05:04,915 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 69 states and 74 transitions. [2019-01-31 15:05:04,989 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 74 edges. 74 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-01-31 15:05:04,990 INFO L225 Difference]: With dead ends: 102 [2019-01-31 15:05:04,990 INFO L226 Difference]: Without dead ends: 68 [2019-01-31 15:05:04,991 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 229 GetRequests, 72 SyntacticMatches, 25 SemanticMatches, 132 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2958 ImplicationChecksByTransitivity, 8.4s TimeCoverageRelationStatistics Valid=624, Invalid=17198, Unknown=0, NotChecked=0, Total=17822 [2019-01-31 15:05:04,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2019-01-31 15:05:06,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2019-01-31 15:05:06,541 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-01-31 15:05:06,541 INFO L82 GeneralOperation]: Start isEquivalent. First operand 68 states. Second operand 68 states. [2019-01-31 15:05:06,541 INFO L74 IsIncluded]: Start isIncluded. First operand 68 states. Second operand 68 states. [2019-01-31 15:05:06,541 INFO L87 Difference]: Start difference. First operand 68 states. Second operand 68 states. [2019-01-31 15:05:06,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 15:05:06,542 INFO L93 Difference]: Finished difference Result 68 states and 69 transitions. [2019-01-31 15:05:06,542 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 69 transitions. [2019-01-31 15:05:06,543 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-31 15:05:06,543 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-01-31 15:05:06,543 INFO L74 IsIncluded]: Start isIncluded. First operand 68 states. Second operand 68 states. [2019-01-31 15:05:06,543 INFO L87 Difference]: Start difference. First operand 68 states. Second operand 68 states. [2019-01-31 15:05:06,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 15:05:06,544 INFO L93 Difference]: Finished difference Result 68 states and 69 transitions. [2019-01-31 15:05:06,544 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 69 transitions. [2019-01-31 15:05:06,544 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-31 15:05:06,544 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-01-31 15:05:06,544 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-01-31 15:05:06,544 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-01-31 15:05:06,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2019-01-31 15:05:06,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 69 transitions. [2019-01-31 15:05:06,545 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 69 transitions. Word has length 66 [2019-01-31 15:05:06,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-31 15:05:06,545 INFO L480 AbstractCegarLoop]: Abstraction has 68 states and 69 transitions. [2019-01-31 15:05:06,545 INFO L481 AbstractCegarLoop]: Interpolant automaton has 100 states. [2019-01-31 15:05:06,545 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 69 transitions. [2019-01-31 15:05:06,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2019-01-31 15:05:06,546 INFO L394 BasicCegarLoop]: Found error trace [2019-01-31 15:05:06,546 INFO L402 BasicCegarLoop]: trace histogram [32, 31, 1, 1, 1, 1] [2019-01-31 15:05:06,546 INFO L423 AbstractCegarLoop]: === Iteration 49 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2019-01-31 15:05:06,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-31 15:05:06,546 INFO L82 PathProgramCache]: Analyzing trace with hash -1906113844, now seen corresponding path program 47 times [2019-01-31 15:05:06,546 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-01-31 15:05:06,547 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-31 15:05:06,547 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-31 15:05:06,547 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-31 15:05:06,547 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-01-31 15:05:06,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-31 15:05:07,913 INFO L273 TraceCheckUtils]: 0: Hoare triple {25224#true} havoc main_#res;havoc main_#t~nondet0, main_#t~nondet2, main_#t~post1, main_#t~post4, main_#t~post3, main_#t~post6, main_#t~post5, main_~MAX~6, main_~str1~6, main_~str2~6, main_~cont~6, main_~i~6, main_~j~6;main_~MAX~6 := (if main_#t~nondet0 % 4294967296 % 4294967296 <= 2147483647 then main_#t~nondet0 % 4294967296 % 4294967296 else main_#t~nondet0 % 4294967296 % 4294967296 - 4294967296);havoc main_#t~nondet0;havoc main_~str1~6;havoc main_~str2~6;havoc main_~cont~6;havoc main_~i~6;havoc main_~j~6;main_~cont~6 := 0;main_~i~6 := 0; {25226#(<= 0 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:05:07,914 INFO L273 TraceCheckUtils]: 1: Hoare triple {25226#(<= 0 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {25227#(<= 1 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:05:07,915 INFO L273 TraceCheckUtils]: 2: Hoare triple {25227#(<= 1 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {25228#(<= 2 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:05:07,916 INFO L273 TraceCheckUtils]: 3: Hoare triple {25228#(<= 2 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {25229#(<= 3 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:05:07,917 INFO L273 TraceCheckUtils]: 4: Hoare triple {25229#(<= 3 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {25230#(<= 4 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:05:07,917 INFO L273 TraceCheckUtils]: 5: Hoare triple {25230#(<= 4 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {25231#(<= 5 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:05:07,918 INFO L273 TraceCheckUtils]: 6: Hoare triple {25231#(<= 5 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {25232#(<= 6 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:05:07,919 INFO L273 TraceCheckUtils]: 7: Hoare triple {25232#(<= 6 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {25233#(<= 7 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:05:07,920 INFO L273 TraceCheckUtils]: 8: Hoare triple {25233#(<= 7 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {25234#(<= 8 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:05:07,921 INFO L273 TraceCheckUtils]: 9: Hoare triple {25234#(<= 8 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {25235#(<= 9 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:05:07,922 INFO L273 TraceCheckUtils]: 10: Hoare triple {25235#(<= 9 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {25236#(<= 10 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:05:07,923 INFO L273 TraceCheckUtils]: 11: Hoare triple {25236#(<= 10 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {25237#(<= 11 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:05:07,924 INFO L273 TraceCheckUtils]: 12: Hoare triple {25237#(<= 11 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {25238#(<= 12 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:05:07,924 INFO L273 TraceCheckUtils]: 13: Hoare triple {25238#(<= 12 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {25239#(<= 13 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:05:07,925 INFO L273 TraceCheckUtils]: 14: Hoare triple {25239#(<= 13 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {25240#(<= 14 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:05:07,926 INFO L273 TraceCheckUtils]: 15: Hoare triple {25240#(<= 14 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {25241#(<= 15 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:05:07,927 INFO L273 TraceCheckUtils]: 16: Hoare triple {25241#(<= 15 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {25242#(<= 16 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:05:07,928 INFO L273 TraceCheckUtils]: 17: Hoare triple {25242#(<= 16 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {25243#(<= 17 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:05:07,929 INFO L273 TraceCheckUtils]: 18: Hoare triple {25243#(<= 17 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {25244#(<= 18 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:05:07,930 INFO L273 TraceCheckUtils]: 19: Hoare triple {25244#(<= 18 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {25245#(<= 19 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:05:07,931 INFO L273 TraceCheckUtils]: 20: Hoare triple {25245#(<= 19 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {25246#(<= 20 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:05:07,932 INFO L273 TraceCheckUtils]: 21: Hoare triple {25246#(<= 20 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {25247#(<= 21 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:05:07,932 INFO L273 TraceCheckUtils]: 22: Hoare triple {25247#(<= 21 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {25248#(<= 22 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:05:07,933 INFO L273 TraceCheckUtils]: 23: Hoare triple {25248#(<= 22 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {25249#(<= 23 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:05:07,934 INFO L273 TraceCheckUtils]: 24: Hoare triple {25249#(<= 23 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {25250#(<= 24 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:05:07,935 INFO L273 TraceCheckUtils]: 25: Hoare triple {25250#(<= 24 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {25251#(<= 25 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:05:07,936 INFO L273 TraceCheckUtils]: 26: Hoare triple {25251#(<= 25 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {25252#(<= 26 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:05:07,937 INFO L273 TraceCheckUtils]: 27: Hoare triple {25252#(<= 26 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {25253#(<= 27 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:05:07,938 INFO L273 TraceCheckUtils]: 28: Hoare triple {25253#(<= 27 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {25254#(<= 28 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:05:07,938 INFO L273 TraceCheckUtils]: 29: Hoare triple {25254#(<= 28 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {25255#(<= 29 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:05:07,939 INFO L273 TraceCheckUtils]: 30: Hoare triple {25255#(<= 29 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {25256#(<= 30 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:05:07,940 INFO L273 TraceCheckUtils]: 31: Hoare triple {25256#(<= 30 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {25257#(<= 31 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:05:07,941 INFO L273 TraceCheckUtils]: 32: Hoare triple {25257#(<= 31 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {25258#(<= 32 ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:05:07,942 INFO L273 TraceCheckUtils]: 33: Hoare triple {25258#(<= 32 ULTIMATE.start_main_~MAX~6)} assume !(main_~i~6 < main_~MAX~6);main_~str1~6 := main_~str1~6[main_~MAX~6 - 1 := 0];main_~j~6 := 0;main_~i~6 := main_~MAX~6 - 1; {25257#(<= 31 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:05:07,943 INFO L273 TraceCheckUtils]: 34: Hoare triple {25257#(<= 31 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {25256#(<= 30 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:05:07,944 INFO L273 TraceCheckUtils]: 35: Hoare triple {25256#(<= 30 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {25255#(<= 29 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:05:07,945 INFO L273 TraceCheckUtils]: 36: Hoare triple {25255#(<= 29 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {25254#(<= 28 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:05:07,945 INFO L273 TraceCheckUtils]: 37: Hoare triple {25254#(<= 28 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {25253#(<= 27 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:05:07,946 INFO L273 TraceCheckUtils]: 38: Hoare triple {25253#(<= 27 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {25252#(<= 26 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:05:07,947 INFO L273 TraceCheckUtils]: 39: Hoare triple {25252#(<= 26 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {25251#(<= 25 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:05:07,948 INFO L273 TraceCheckUtils]: 40: Hoare triple {25251#(<= 25 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {25250#(<= 24 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:05:07,949 INFO L273 TraceCheckUtils]: 41: Hoare triple {25250#(<= 24 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {25249#(<= 23 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:05:07,950 INFO L273 TraceCheckUtils]: 42: Hoare triple {25249#(<= 23 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {25248#(<= 22 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:05:07,951 INFO L273 TraceCheckUtils]: 43: Hoare triple {25248#(<= 22 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {25247#(<= 21 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:05:07,951 INFO L273 TraceCheckUtils]: 44: Hoare triple {25247#(<= 21 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {25246#(<= 20 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:05:07,952 INFO L273 TraceCheckUtils]: 45: Hoare triple {25246#(<= 20 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {25245#(<= 19 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:05:07,953 INFO L273 TraceCheckUtils]: 46: Hoare triple {25245#(<= 19 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {25244#(<= 18 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:05:07,954 INFO L273 TraceCheckUtils]: 47: Hoare triple {25244#(<= 18 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {25243#(<= 17 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:05:07,955 INFO L273 TraceCheckUtils]: 48: Hoare triple {25243#(<= 17 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {25242#(<= 16 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:05:07,956 INFO L273 TraceCheckUtils]: 49: Hoare triple {25242#(<= 16 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {25241#(<= 15 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:05:07,957 INFO L273 TraceCheckUtils]: 50: Hoare triple {25241#(<= 15 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {25240#(<= 14 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:05:07,958 INFO L273 TraceCheckUtils]: 51: Hoare triple {25240#(<= 14 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {25239#(<= 13 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:05:07,959 INFO L273 TraceCheckUtils]: 52: Hoare triple {25239#(<= 13 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {25238#(<= 12 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:05:07,959 INFO L273 TraceCheckUtils]: 53: Hoare triple {25238#(<= 12 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {25237#(<= 11 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:05:07,960 INFO L273 TraceCheckUtils]: 54: Hoare triple {25237#(<= 11 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {25236#(<= 10 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:05:07,961 INFO L273 TraceCheckUtils]: 55: Hoare triple {25236#(<= 10 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {25235#(<= 9 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:05:07,962 INFO L273 TraceCheckUtils]: 56: Hoare triple {25235#(<= 9 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {25234#(<= 8 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:05:07,963 INFO L273 TraceCheckUtils]: 57: Hoare triple {25234#(<= 8 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {25233#(<= 7 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:05:07,964 INFO L273 TraceCheckUtils]: 58: Hoare triple {25233#(<= 7 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {25232#(<= 6 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:05:07,965 INFO L273 TraceCheckUtils]: 59: Hoare triple {25232#(<= 6 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {25231#(<= 5 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:05:07,965 INFO L273 TraceCheckUtils]: 60: Hoare triple {25231#(<= 5 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {25230#(<= 4 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:05:07,966 INFO L273 TraceCheckUtils]: 61: Hoare triple {25230#(<= 4 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {25229#(<= 3 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:05:07,967 INFO L273 TraceCheckUtils]: 62: Hoare triple {25229#(<= 3 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {25228#(<= 2 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:05:07,968 INFO L273 TraceCheckUtils]: 63: Hoare triple {25228#(<= 2 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {25227#(<= 1 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:05:07,971 INFO L273 TraceCheckUtils]: 64: Hoare triple {25227#(<= 1 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {25226#(<= 0 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:05:07,971 INFO L273 TraceCheckUtils]: 65: Hoare triple {25226#(<= 0 ULTIMATE.start_main_~i~6)} assume !(main_~i~6 >= 0);main_~j~6 := main_~MAX~6 - 1;main_~i~6 := 0;assume !!(main_~i~6 < main_~MAX~6);__VERIFIER_assert_#in~cond := (if main_~str1~6[main_~i~6] == main_~str2~6[main_~j~6] then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond;assume __VERIFIER_assert_~cond == 0;assume !false; {25225#false} is VALID [2019-01-31 15:05:07,972 INFO L273 TraceCheckUtils]: 66: Hoare triple {25225#false} assume !false; {25225#false} is VALID [2019-01-31 15:05:07,977 INFO L134 CoverageAnalysis]: Checked inductivity of 1024 backedges. 496 proven. 528 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-31 15:05:07,977 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-31 15:05:07,977 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-01-31 15:05:07,977 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-01-31 15:05:07,977 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-01-31 15:05:07,977 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-31 15:05:07,977 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 48 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 48 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-01-31 15:05:07,985 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2019-01-31 15:05:07,985 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST2 (IT: FPandBP) [2019-01-31 15:05:08,148 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 17 check-sat command(s) [2019-01-31 15:05:08,149 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-01-31 15:05:08,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-31 15:05:08,194 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-31 15:05:08,477 INFO L273 TraceCheckUtils]: 0: Hoare triple {25224#true} havoc main_#res;havoc main_#t~nondet0, main_#t~nondet2, main_#t~post1, main_#t~post4, main_#t~post3, main_#t~post6, main_#t~post5, main_~MAX~6, main_~str1~6, main_~str2~6, main_~cont~6, main_~i~6, main_~j~6;main_~MAX~6 := (if main_#t~nondet0 % 4294967296 % 4294967296 <= 2147483647 then main_#t~nondet0 % 4294967296 % 4294967296 else main_#t~nondet0 % 4294967296 % 4294967296 - 4294967296);havoc main_#t~nondet0;havoc main_~str1~6;havoc main_~str2~6;havoc main_~cont~6;havoc main_~i~6;havoc main_~j~6;main_~cont~6 := 0;main_~i~6 := 0; {25226#(<= 0 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:05:08,478 INFO L273 TraceCheckUtils]: 1: Hoare triple {25226#(<= 0 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {25227#(<= 1 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:05:08,479 INFO L273 TraceCheckUtils]: 2: Hoare triple {25227#(<= 1 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {25228#(<= 2 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:05:08,480 INFO L273 TraceCheckUtils]: 3: Hoare triple {25228#(<= 2 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {25229#(<= 3 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:05:08,480 INFO L273 TraceCheckUtils]: 4: Hoare triple {25229#(<= 3 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {25230#(<= 4 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:05:08,481 INFO L273 TraceCheckUtils]: 5: Hoare triple {25230#(<= 4 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {25231#(<= 5 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:05:08,482 INFO L273 TraceCheckUtils]: 6: Hoare triple {25231#(<= 5 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {25232#(<= 6 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:05:08,483 INFO L273 TraceCheckUtils]: 7: Hoare triple {25232#(<= 6 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {25233#(<= 7 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:05:08,484 INFO L273 TraceCheckUtils]: 8: Hoare triple {25233#(<= 7 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {25234#(<= 8 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:05:08,485 INFO L273 TraceCheckUtils]: 9: Hoare triple {25234#(<= 8 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {25235#(<= 9 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:05:08,486 INFO L273 TraceCheckUtils]: 10: Hoare triple {25235#(<= 9 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {25236#(<= 10 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:05:08,487 INFO L273 TraceCheckUtils]: 11: Hoare triple {25236#(<= 10 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {25237#(<= 11 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:05:08,487 INFO L273 TraceCheckUtils]: 12: Hoare triple {25237#(<= 11 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {25238#(<= 12 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:05:08,488 INFO L273 TraceCheckUtils]: 13: Hoare triple {25238#(<= 12 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {25239#(<= 13 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:05:08,489 INFO L273 TraceCheckUtils]: 14: Hoare triple {25239#(<= 13 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {25240#(<= 14 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:05:08,490 INFO L273 TraceCheckUtils]: 15: Hoare triple {25240#(<= 14 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {25241#(<= 15 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:05:08,491 INFO L273 TraceCheckUtils]: 16: Hoare triple {25241#(<= 15 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {25242#(<= 16 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:05:08,492 INFO L273 TraceCheckUtils]: 17: Hoare triple {25242#(<= 16 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {25243#(<= 17 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:05:08,493 INFO L273 TraceCheckUtils]: 18: Hoare triple {25243#(<= 17 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {25244#(<= 18 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:05:08,493 INFO L273 TraceCheckUtils]: 19: Hoare triple {25244#(<= 18 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {25245#(<= 19 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:05:08,497 INFO L273 TraceCheckUtils]: 20: Hoare triple {25245#(<= 19 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {25246#(<= 20 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:05:08,497 INFO L273 TraceCheckUtils]: 21: Hoare triple {25246#(<= 20 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {25247#(<= 21 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:05:08,498 INFO L273 TraceCheckUtils]: 22: Hoare triple {25247#(<= 21 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {25248#(<= 22 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:05:08,498 INFO L273 TraceCheckUtils]: 23: Hoare triple {25248#(<= 22 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {25249#(<= 23 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:05:08,499 INFO L273 TraceCheckUtils]: 24: Hoare triple {25249#(<= 23 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {25250#(<= 24 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:05:08,499 INFO L273 TraceCheckUtils]: 25: Hoare triple {25250#(<= 24 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {25251#(<= 25 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:05:08,500 INFO L273 TraceCheckUtils]: 26: Hoare triple {25251#(<= 25 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {25252#(<= 26 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:05:08,501 INFO L273 TraceCheckUtils]: 27: Hoare triple {25252#(<= 26 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {25253#(<= 27 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:05:08,502 INFO L273 TraceCheckUtils]: 28: Hoare triple {25253#(<= 27 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {25254#(<= 28 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:05:08,503 INFO L273 TraceCheckUtils]: 29: Hoare triple {25254#(<= 28 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {25255#(<= 29 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:05:08,503 INFO L273 TraceCheckUtils]: 30: Hoare triple {25255#(<= 29 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {25256#(<= 30 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:05:08,504 INFO L273 TraceCheckUtils]: 31: Hoare triple {25256#(<= 30 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {25257#(<= 31 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:05:08,505 INFO L273 TraceCheckUtils]: 32: Hoare triple {25257#(<= 31 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {25258#(<= 32 ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:05:08,506 INFO L273 TraceCheckUtils]: 33: Hoare triple {25258#(<= 32 ULTIMATE.start_main_~MAX~6)} assume !(main_~i~6 < main_~MAX~6);main_~str1~6 := main_~str1~6[main_~MAX~6 - 1 := 0];main_~j~6 := 0;main_~i~6 := main_~MAX~6 - 1; {25257#(<= 31 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:05:08,507 INFO L273 TraceCheckUtils]: 34: Hoare triple {25257#(<= 31 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {25256#(<= 30 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:05:08,508 INFO L273 TraceCheckUtils]: 35: Hoare triple {25256#(<= 30 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {25255#(<= 29 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:05:08,509 INFO L273 TraceCheckUtils]: 36: Hoare triple {25255#(<= 29 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {25254#(<= 28 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:05:08,510 INFO L273 TraceCheckUtils]: 37: Hoare triple {25254#(<= 28 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {25253#(<= 27 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:05:08,510 INFO L273 TraceCheckUtils]: 38: Hoare triple {25253#(<= 27 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {25252#(<= 26 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:05:08,511 INFO L273 TraceCheckUtils]: 39: Hoare triple {25252#(<= 26 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {25251#(<= 25 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:05:08,512 INFO L273 TraceCheckUtils]: 40: Hoare triple {25251#(<= 25 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {25250#(<= 24 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:05:08,513 INFO L273 TraceCheckUtils]: 41: Hoare triple {25250#(<= 24 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {25249#(<= 23 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:05:08,514 INFO L273 TraceCheckUtils]: 42: Hoare triple {25249#(<= 23 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {25248#(<= 22 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:05:08,515 INFO L273 TraceCheckUtils]: 43: Hoare triple {25248#(<= 22 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {25247#(<= 21 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:05:08,516 INFO L273 TraceCheckUtils]: 44: Hoare triple {25247#(<= 21 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {25246#(<= 20 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:05:08,516 INFO L273 TraceCheckUtils]: 45: Hoare triple {25246#(<= 20 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {25245#(<= 19 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:05:08,517 INFO L273 TraceCheckUtils]: 46: Hoare triple {25245#(<= 19 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {25244#(<= 18 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:05:08,518 INFO L273 TraceCheckUtils]: 47: Hoare triple {25244#(<= 18 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {25243#(<= 17 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:05:08,519 INFO L273 TraceCheckUtils]: 48: Hoare triple {25243#(<= 17 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {25242#(<= 16 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:05:08,520 INFO L273 TraceCheckUtils]: 49: Hoare triple {25242#(<= 16 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {25241#(<= 15 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:05:08,521 INFO L273 TraceCheckUtils]: 50: Hoare triple {25241#(<= 15 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {25240#(<= 14 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:05:08,522 INFO L273 TraceCheckUtils]: 51: Hoare triple {25240#(<= 14 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {25239#(<= 13 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:05:08,522 INFO L273 TraceCheckUtils]: 52: Hoare triple {25239#(<= 13 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {25238#(<= 12 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:05:08,523 INFO L273 TraceCheckUtils]: 53: Hoare triple {25238#(<= 12 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {25237#(<= 11 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:05:08,524 INFO L273 TraceCheckUtils]: 54: Hoare triple {25237#(<= 11 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {25236#(<= 10 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:05:08,525 INFO L273 TraceCheckUtils]: 55: Hoare triple {25236#(<= 10 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {25235#(<= 9 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:05:08,526 INFO L273 TraceCheckUtils]: 56: Hoare triple {25235#(<= 9 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {25234#(<= 8 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:05:08,527 INFO L273 TraceCheckUtils]: 57: Hoare triple {25234#(<= 8 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {25233#(<= 7 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:05:08,528 INFO L273 TraceCheckUtils]: 58: Hoare triple {25233#(<= 7 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {25232#(<= 6 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:05:08,528 INFO L273 TraceCheckUtils]: 59: Hoare triple {25232#(<= 6 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {25231#(<= 5 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:05:08,529 INFO L273 TraceCheckUtils]: 60: Hoare triple {25231#(<= 5 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {25230#(<= 4 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:05:08,530 INFO L273 TraceCheckUtils]: 61: Hoare triple {25230#(<= 4 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {25229#(<= 3 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:05:08,531 INFO L273 TraceCheckUtils]: 62: Hoare triple {25229#(<= 3 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {25228#(<= 2 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:05:08,532 INFO L273 TraceCheckUtils]: 63: Hoare triple {25228#(<= 2 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {25227#(<= 1 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:05:08,533 INFO L273 TraceCheckUtils]: 64: Hoare triple {25227#(<= 1 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {25226#(<= 0 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:05:08,533 INFO L273 TraceCheckUtils]: 65: Hoare triple {25226#(<= 0 ULTIMATE.start_main_~i~6)} assume !(main_~i~6 >= 0);main_~j~6 := main_~MAX~6 - 1;main_~i~6 := 0;assume !!(main_~i~6 < main_~MAX~6);__VERIFIER_assert_#in~cond := (if main_~str1~6[main_~i~6] == main_~str2~6[main_~j~6] then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond;assume __VERIFIER_assert_~cond == 0;assume !false; {25225#false} is VALID [2019-01-31 15:05:08,533 INFO L273 TraceCheckUtils]: 66: Hoare triple {25225#false} assume !false; {25225#false} is VALID [2019-01-31 15:05:08,538 INFO L134 CoverageAnalysis]: Checked inductivity of 1024 backedges. 496 proven. 528 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-31 15:05:08,538 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2019-01-31 15:05:10,011 INFO L273 TraceCheckUtils]: 66: Hoare triple {25225#false} assume !false; {25225#false} is VALID [2019-01-31 15:05:10,012 INFO L273 TraceCheckUtils]: 65: Hoare triple {25226#(<= 0 ULTIMATE.start_main_~i~6)} assume !(main_~i~6 >= 0);main_~j~6 := main_~MAX~6 - 1;main_~i~6 := 0;assume !!(main_~i~6 < main_~MAX~6);__VERIFIER_assert_#in~cond := (if main_~str1~6[main_~i~6] == main_~str2~6[main_~j~6] then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond;assume __VERIFIER_assert_~cond == 0;assume !false; {25225#false} is VALID [2019-01-31 15:05:10,013 INFO L273 TraceCheckUtils]: 64: Hoare triple {25227#(<= 1 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {25226#(<= 0 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:05:10,014 INFO L273 TraceCheckUtils]: 63: Hoare triple {25228#(<= 2 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {25227#(<= 1 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:05:10,015 INFO L273 TraceCheckUtils]: 62: Hoare triple {25229#(<= 3 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {25228#(<= 2 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:05:10,015 INFO L273 TraceCheckUtils]: 61: Hoare triple {25230#(<= 4 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {25229#(<= 3 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:05:10,016 INFO L273 TraceCheckUtils]: 60: Hoare triple {25231#(<= 5 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {25230#(<= 4 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:05:10,017 INFO L273 TraceCheckUtils]: 59: Hoare triple {25232#(<= 6 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {25231#(<= 5 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:05:10,018 INFO L273 TraceCheckUtils]: 58: Hoare triple {25233#(<= 7 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {25232#(<= 6 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:05:10,019 INFO L273 TraceCheckUtils]: 57: Hoare triple {25234#(<= 8 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {25233#(<= 7 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:05:10,020 INFO L273 TraceCheckUtils]: 56: Hoare triple {25235#(<= 9 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {25234#(<= 8 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:05:10,021 INFO L273 TraceCheckUtils]: 55: Hoare triple {25236#(<= 10 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {25235#(<= 9 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:05:10,021 INFO L273 TraceCheckUtils]: 54: Hoare triple {25237#(<= 11 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {25236#(<= 10 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:05:10,022 INFO L273 TraceCheckUtils]: 53: Hoare triple {25238#(<= 12 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {25237#(<= 11 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:05:10,023 INFO L273 TraceCheckUtils]: 52: Hoare triple {25239#(<= 13 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {25238#(<= 12 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:05:10,024 INFO L273 TraceCheckUtils]: 51: Hoare triple {25240#(<= 14 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {25239#(<= 13 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:05:10,025 INFO L273 TraceCheckUtils]: 50: Hoare triple {25241#(<= 15 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {25240#(<= 14 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:05:10,026 INFO L273 TraceCheckUtils]: 49: Hoare triple {25242#(<= 16 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {25241#(<= 15 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:05:10,027 INFO L273 TraceCheckUtils]: 48: Hoare triple {25243#(<= 17 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {25242#(<= 16 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:05:10,027 INFO L273 TraceCheckUtils]: 47: Hoare triple {25244#(<= 18 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {25243#(<= 17 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:05:10,028 INFO L273 TraceCheckUtils]: 46: Hoare triple {25245#(<= 19 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {25244#(<= 18 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:05:10,029 INFO L273 TraceCheckUtils]: 45: Hoare triple {25246#(<= 20 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {25245#(<= 19 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:05:10,030 INFO L273 TraceCheckUtils]: 44: Hoare triple {25247#(<= 21 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {25246#(<= 20 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:05:10,031 INFO L273 TraceCheckUtils]: 43: Hoare triple {25248#(<= 22 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {25247#(<= 21 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:05:10,032 INFO L273 TraceCheckUtils]: 42: Hoare triple {25249#(<= 23 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {25248#(<= 22 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:05:10,033 INFO L273 TraceCheckUtils]: 41: Hoare triple {25250#(<= 24 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {25249#(<= 23 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:05:10,033 INFO L273 TraceCheckUtils]: 40: Hoare triple {25251#(<= 25 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {25250#(<= 24 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:05:10,034 INFO L273 TraceCheckUtils]: 39: Hoare triple {25252#(<= 26 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {25251#(<= 25 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:05:10,035 INFO L273 TraceCheckUtils]: 38: Hoare triple {25253#(<= 27 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {25252#(<= 26 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:05:10,036 INFO L273 TraceCheckUtils]: 37: Hoare triple {25254#(<= 28 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {25253#(<= 27 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:05:10,037 INFO L273 TraceCheckUtils]: 36: Hoare triple {25255#(<= 29 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {25254#(<= 28 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:05:10,038 INFO L273 TraceCheckUtils]: 35: Hoare triple {25256#(<= 30 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {25255#(<= 29 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:05:10,039 INFO L273 TraceCheckUtils]: 34: Hoare triple {25257#(<= 31 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {25256#(<= 30 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:05:10,040 INFO L273 TraceCheckUtils]: 33: Hoare triple {25258#(<= 32 ULTIMATE.start_main_~MAX~6)} assume !(main_~i~6 < main_~MAX~6);main_~str1~6 := main_~str1~6[main_~MAX~6 - 1 := 0];main_~j~6 := 0;main_~i~6 := main_~MAX~6 - 1; {25257#(<= 31 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:05:10,041 INFO L273 TraceCheckUtils]: 32: Hoare triple {25257#(<= 31 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {25258#(<= 32 ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:05:10,042 INFO L273 TraceCheckUtils]: 31: Hoare triple {25256#(<= 30 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {25257#(<= 31 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:05:10,042 INFO L273 TraceCheckUtils]: 30: Hoare triple {25255#(<= 29 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {25256#(<= 30 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:05:10,043 INFO L273 TraceCheckUtils]: 29: Hoare triple {25254#(<= 28 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {25255#(<= 29 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:05:10,044 INFO L273 TraceCheckUtils]: 28: Hoare triple {25253#(<= 27 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {25254#(<= 28 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:05:10,045 INFO L273 TraceCheckUtils]: 27: Hoare triple {25252#(<= 26 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {25253#(<= 27 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:05:10,046 INFO L273 TraceCheckUtils]: 26: Hoare triple {25251#(<= 25 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {25252#(<= 26 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:05:10,047 INFO L273 TraceCheckUtils]: 25: Hoare triple {25250#(<= 24 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {25251#(<= 25 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:05:10,048 INFO L273 TraceCheckUtils]: 24: Hoare triple {25249#(<= 23 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {25250#(<= 24 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:05:10,049 INFO L273 TraceCheckUtils]: 23: Hoare triple {25248#(<= 22 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {25249#(<= 23 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:05:10,050 INFO L273 TraceCheckUtils]: 22: Hoare triple {25247#(<= 21 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {25248#(<= 22 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:05:10,051 INFO L273 TraceCheckUtils]: 21: Hoare triple {25246#(<= 20 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {25247#(<= 21 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:05:10,052 INFO L273 TraceCheckUtils]: 20: Hoare triple {25245#(<= 19 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {25246#(<= 20 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:05:10,053 INFO L273 TraceCheckUtils]: 19: Hoare triple {25244#(<= 18 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {25245#(<= 19 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:05:10,054 INFO L273 TraceCheckUtils]: 18: Hoare triple {25243#(<= 17 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {25244#(<= 18 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:05:10,054 INFO L273 TraceCheckUtils]: 17: Hoare triple {25242#(<= 16 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {25243#(<= 17 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:05:10,055 INFO L273 TraceCheckUtils]: 16: Hoare triple {25241#(<= 15 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {25242#(<= 16 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:05:10,056 INFO L273 TraceCheckUtils]: 15: Hoare triple {25240#(<= 14 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {25241#(<= 15 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:05:10,057 INFO L273 TraceCheckUtils]: 14: Hoare triple {25239#(<= 13 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {25240#(<= 14 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:05:10,058 INFO L273 TraceCheckUtils]: 13: Hoare triple {25238#(<= 12 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {25239#(<= 13 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:05:10,059 INFO L273 TraceCheckUtils]: 12: Hoare triple {25237#(<= 11 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {25238#(<= 12 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:05:10,060 INFO L273 TraceCheckUtils]: 11: Hoare triple {25236#(<= 10 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {25237#(<= 11 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:05:10,061 INFO L273 TraceCheckUtils]: 10: Hoare triple {25235#(<= 9 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {25236#(<= 10 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:05:10,062 INFO L273 TraceCheckUtils]: 9: Hoare triple {25234#(<= 8 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {25235#(<= 9 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:05:10,063 INFO L273 TraceCheckUtils]: 8: Hoare triple {25233#(<= 7 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {25234#(<= 8 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:05:10,064 INFO L273 TraceCheckUtils]: 7: Hoare triple {25232#(<= 6 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {25233#(<= 7 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:05:10,064 INFO L273 TraceCheckUtils]: 6: Hoare triple {25231#(<= 5 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {25232#(<= 6 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:05:10,065 INFO L273 TraceCheckUtils]: 5: Hoare triple {25230#(<= 4 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {25231#(<= 5 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:05:10,066 INFO L273 TraceCheckUtils]: 4: Hoare triple {25229#(<= 3 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {25230#(<= 4 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:05:10,067 INFO L273 TraceCheckUtils]: 3: Hoare triple {25228#(<= 2 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {25229#(<= 3 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:05:10,068 INFO L273 TraceCheckUtils]: 2: Hoare triple {25227#(<= 1 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {25228#(<= 2 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:05:10,069 INFO L273 TraceCheckUtils]: 1: Hoare triple {25226#(<= 0 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {25227#(<= 1 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:05:10,070 INFO L273 TraceCheckUtils]: 0: Hoare triple {25224#true} havoc main_#res;havoc main_#t~nondet0, main_#t~nondet2, main_#t~post1, main_#t~post4, main_#t~post3, main_#t~post6, main_#t~post5, main_~MAX~6, main_~str1~6, main_~str2~6, main_~cont~6, main_~i~6, main_~j~6;main_~MAX~6 := (if main_#t~nondet0 % 4294967296 % 4294967296 <= 2147483647 then main_#t~nondet0 % 4294967296 % 4294967296 else main_#t~nondet0 % 4294967296 % 4294967296 - 4294967296);havoc main_#t~nondet0;havoc main_~str1~6;havoc main_~str2~6;havoc main_~cont~6;havoc main_~i~6;havoc main_~j~6;main_~cont~6 := 0;main_~i~6 := 0; {25226#(<= 0 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:05:10,075 INFO L134 CoverageAnalysis]: Checked inductivity of 1024 backedges. 496 proven. 528 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-31 15:05:10,094 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-01-31 15:05:10,094 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [34, 34, 34] total 34 [2019-01-31 15:05:10,094 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-01-31 15:05:10,094 INFO L78 Accepts]: Start accepts. Automaton has 35 states. Word has length 67 [2019-01-31 15:05:10,094 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-01-31 15:05:10,095 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 35 states. [2019-01-31 15:05:10,170 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 67 edges. 67 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-01-31 15:05:10,170 INFO L459 AbstractCegarLoop]: Interpolant automaton has 35 states [2019-01-31 15:05:10,171 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2019-01-31 15:05:10,171 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=563, Invalid=627, Unknown=0, NotChecked=0, Total=1190 [2019-01-31 15:05:10,171 INFO L87 Difference]: Start difference. First operand 68 states and 69 transitions. Second operand 35 states. [2019-01-31 15:05:12,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 15:05:12,765 INFO L93 Difference]: Finished difference Result 71 states and 72 transitions. [2019-01-31 15:05:12,765 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2019-01-31 15:05:12,765 INFO L78 Accepts]: Start accepts. Automaton has 35 states. Word has length 67 [2019-01-31 15:05:12,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-31 15:05:12,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2019-01-31 15:05:12,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 72 transitions. [2019-01-31 15:05:12,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2019-01-31 15:05:12,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 72 transitions. [2019-01-31 15:05:12,767 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 67 states and 72 transitions. [2019-01-31 15:05:12,831 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 72 edges. 72 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-01-31 15:05:12,832 INFO L225 Difference]: With dead ends: 71 [2019-01-31 15:05:12,832 INFO L226 Difference]: Without dead ends: 69 [2019-01-31 15:05:12,833 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 230 GetRequests, 101 SyntacticMatches, 64 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1984 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=1683, Invalid=2739, Unknown=0, NotChecked=0, Total=4422 [2019-01-31 15:05:12,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2019-01-31 15:05:14,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 69. [2019-01-31 15:05:14,776 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-01-31 15:05:14,776 INFO L82 GeneralOperation]: Start isEquivalent. First operand 69 states. Second operand 69 states. [2019-01-31 15:05:14,776 INFO L74 IsIncluded]: Start isIncluded. First operand 69 states. Second operand 69 states. [2019-01-31 15:05:14,776 INFO L87 Difference]: Start difference. First operand 69 states. Second operand 69 states. [2019-01-31 15:05:14,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 15:05:14,777 INFO L93 Difference]: Finished difference Result 69 states and 70 transitions. [2019-01-31 15:05:14,777 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 70 transitions. [2019-01-31 15:05:14,778 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-31 15:05:14,778 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-01-31 15:05:14,778 INFO L74 IsIncluded]: Start isIncluded. First operand 69 states. Second operand 69 states. [2019-01-31 15:05:14,778 INFO L87 Difference]: Start difference. First operand 69 states. Second operand 69 states. [2019-01-31 15:05:14,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 15:05:14,779 INFO L93 Difference]: Finished difference Result 69 states and 70 transitions. [2019-01-31 15:05:14,779 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 70 transitions. [2019-01-31 15:05:14,779 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-31 15:05:14,779 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-01-31 15:05:14,779 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-01-31 15:05:14,779 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-01-31 15:05:14,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69 states. [2019-01-31 15:05:14,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 70 transitions. [2019-01-31 15:05:14,780 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 70 transitions. Word has length 67 [2019-01-31 15:05:14,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-31 15:05:14,781 INFO L480 AbstractCegarLoop]: Abstraction has 69 states and 70 transitions. [2019-01-31 15:05:14,781 INFO L481 AbstractCegarLoop]: Interpolant automaton has 35 states. [2019-01-31 15:05:14,781 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 70 transitions. [2019-01-31 15:05:14,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2019-01-31 15:05:14,781 INFO L394 BasicCegarLoop]: Found error trace [2019-01-31 15:05:14,781 INFO L402 BasicCegarLoop]: trace histogram [32, 32, 1, 1, 1, 1] [2019-01-31 15:05:14,781 INFO L423 AbstractCegarLoop]: === Iteration 50 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2019-01-31 15:05:14,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-31 15:05:14,782 INFO L82 PathProgramCache]: Analyzing trace with hash 1040014794, now seen corresponding path program 48 times [2019-01-31 15:05:14,782 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-01-31 15:05:14,782 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-31 15:05:14,783 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-01-31 15:05:14,783 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-31 15:05:14,783 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-01-31 15:05:14,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-31 15:05:17,385 INFO L273 TraceCheckUtils]: 0: Hoare triple {26134#true} havoc main_#res;havoc main_#t~nondet0, main_#t~nondet2, main_#t~post1, main_#t~post4, main_#t~post3, main_#t~post6, main_#t~post5, main_~MAX~6, main_~str1~6, main_~str2~6, main_~cont~6, main_~i~6, main_~j~6;main_~MAX~6 := (if main_#t~nondet0 % 4294967296 % 4294967296 <= 2147483647 then main_#t~nondet0 % 4294967296 % 4294967296 else main_#t~nondet0 % 4294967296 % 4294967296 - 4294967296);havoc main_#t~nondet0;havoc main_~str1~6;havoc main_~str2~6;havoc main_~cont~6;havoc main_~i~6;havoc main_~j~6;main_~cont~6 := 0;main_~i~6 := 0; {26136#(and (<= ULTIMATE.start_main_~i~6 0) (<= 0 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:05:17,386 INFO L273 TraceCheckUtils]: 1: Hoare triple {26136#(and (<= ULTIMATE.start_main_~i~6 0) (<= 0 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {26137#(and (<= ULTIMATE.start_main_~i~6 1) (<= 1 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:05:17,387 INFO L273 TraceCheckUtils]: 2: Hoare triple {26137#(and (<= ULTIMATE.start_main_~i~6 1) (<= 1 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {26138#(and (<= ULTIMATE.start_main_~i~6 2) (<= 2 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:05:17,388 INFO L273 TraceCheckUtils]: 3: Hoare triple {26138#(and (<= ULTIMATE.start_main_~i~6 2) (<= 2 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {26139#(and (<= 3 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 3))} is VALID [2019-01-31 15:05:17,389 INFO L273 TraceCheckUtils]: 4: Hoare triple {26139#(and (<= 3 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 3))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {26140#(and (<= ULTIMATE.start_main_~i~6 4) (<= 4 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:05:17,390 INFO L273 TraceCheckUtils]: 5: Hoare triple {26140#(and (<= ULTIMATE.start_main_~i~6 4) (<= 4 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {26141#(and (<= 5 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 5))} is VALID [2019-01-31 15:05:17,391 INFO L273 TraceCheckUtils]: 6: Hoare triple {26141#(and (<= 5 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 5))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {26142#(and (<= ULTIMATE.start_main_~i~6 6) (<= 6 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:05:17,392 INFO L273 TraceCheckUtils]: 7: Hoare triple {26142#(and (<= ULTIMATE.start_main_~i~6 6) (<= 6 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {26143#(and (<= 7 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 7))} is VALID [2019-01-31 15:05:17,393 INFO L273 TraceCheckUtils]: 8: Hoare triple {26143#(and (<= 7 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 7))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {26144#(and (<= ULTIMATE.start_main_~i~6 8) (<= 8 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:05:17,394 INFO L273 TraceCheckUtils]: 9: Hoare triple {26144#(and (<= ULTIMATE.start_main_~i~6 8) (<= 8 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {26145#(and (<= ULTIMATE.start_main_~i~6 9) (<= 9 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:05:17,395 INFO L273 TraceCheckUtils]: 10: Hoare triple {26145#(and (<= ULTIMATE.start_main_~i~6 9) (<= 9 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {26146#(and (<= ULTIMATE.start_main_~i~6 10) (<= 10 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:05:17,396 INFO L273 TraceCheckUtils]: 11: Hoare triple {26146#(and (<= ULTIMATE.start_main_~i~6 10) (<= 10 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {26147#(and (<= 11 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 11))} is VALID [2019-01-31 15:05:17,397 INFO L273 TraceCheckUtils]: 12: Hoare triple {26147#(and (<= 11 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 11))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {26148#(and (<= ULTIMATE.start_main_~i~6 12) (<= 12 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:05:17,398 INFO L273 TraceCheckUtils]: 13: Hoare triple {26148#(and (<= ULTIMATE.start_main_~i~6 12) (<= 12 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {26149#(and (<= ULTIMATE.start_main_~i~6 13) (<= 13 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:05:17,399 INFO L273 TraceCheckUtils]: 14: Hoare triple {26149#(and (<= ULTIMATE.start_main_~i~6 13) (<= 13 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {26150#(and (<= ULTIMATE.start_main_~i~6 14) (<= 14 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:05:17,400 INFO L273 TraceCheckUtils]: 15: Hoare triple {26150#(and (<= ULTIMATE.start_main_~i~6 14) (<= 14 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {26151#(and (<= 15 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 15))} is VALID [2019-01-31 15:05:17,401 INFO L273 TraceCheckUtils]: 16: Hoare triple {26151#(and (<= 15 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 15))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {26152#(and (<= 16 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 16))} is VALID [2019-01-31 15:05:17,402 INFO L273 TraceCheckUtils]: 17: Hoare triple {26152#(and (<= 16 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 16))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {26153#(and (<= ULTIMATE.start_main_~i~6 17) (<= 17 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:05:17,402 INFO L273 TraceCheckUtils]: 18: Hoare triple {26153#(and (<= ULTIMATE.start_main_~i~6 17) (<= 17 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {26154#(and (<= ULTIMATE.start_main_~i~6 18) (<= 18 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:05:17,403 INFO L273 TraceCheckUtils]: 19: Hoare triple {26154#(and (<= ULTIMATE.start_main_~i~6 18) (<= 18 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {26155#(and (<= ULTIMATE.start_main_~i~6 19) (<= 19 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:05:17,404 INFO L273 TraceCheckUtils]: 20: Hoare triple {26155#(and (<= ULTIMATE.start_main_~i~6 19) (<= 19 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {26156#(and (<= ULTIMATE.start_main_~i~6 20) (<= 20 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:05:17,405 INFO L273 TraceCheckUtils]: 21: Hoare triple {26156#(and (<= ULTIMATE.start_main_~i~6 20) (<= 20 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {26157#(and (<= ULTIMATE.start_main_~i~6 21) (<= 21 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:05:17,406 INFO L273 TraceCheckUtils]: 22: Hoare triple {26157#(and (<= ULTIMATE.start_main_~i~6 21) (<= 21 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {26158#(and (<= 22 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 22))} is VALID [2019-01-31 15:05:17,407 INFO L273 TraceCheckUtils]: 23: Hoare triple {26158#(and (<= 22 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 22))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {26159#(and (<= 23 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 23))} is VALID [2019-01-31 15:05:17,408 INFO L273 TraceCheckUtils]: 24: Hoare triple {26159#(and (<= 23 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 23))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {26160#(and (<= ULTIMATE.start_main_~i~6 24) (<= 24 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:05:17,409 INFO L273 TraceCheckUtils]: 25: Hoare triple {26160#(and (<= ULTIMATE.start_main_~i~6 24) (<= 24 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {26161#(and (<= ULTIMATE.start_main_~i~6 25) (<= 25 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:05:17,410 INFO L273 TraceCheckUtils]: 26: Hoare triple {26161#(and (<= ULTIMATE.start_main_~i~6 25) (<= 25 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {26162#(and (<= 26 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 26))} is VALID [2019-01-31 15:05:17,411 INFO L273 TraceCheckUtils]: 27: Hoare triple {26162#(and (<= 26 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 26))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {26163#(and (<= ULTIMATE.start_main_~i~6 27) (<= 27 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:05:17,412 INFO L273 TraceCheckUtils]: 28: Hoare triple {26163#(and (<= ULTIMATE.start_main_~i~6 27) (<= 27 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {26164#(and (<= ULTIMATE.start_main_~i~6 28) (<= 28 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:05:17,413 INFO L273 TraceCheckUtils]: 29: Hoare triple {26164#(and (<= ULTIMATE.start_main_~i~6 28) (<= 28 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {26165#(and (<= 29 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 29))} is VALID [2019-01-31 15:05:17,414 INFO L273 TraceCheckUtils]: 30: Hoare triple {26165#(and (<= 29 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 29))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {26166#(and (<= 30 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 30))} is VALID [2019-01-31 15:05:17,415 INFO L273 TraceCheckUtils]: 31: Hoare triple {26166#(and (<= 30 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 30))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {26167#(or (not (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 1))) (and (<= ULTIMATE.start_main_~i~6 31) (<= 31 ULTIMATE.start_main_~i~6)))} is VALID [2019-01-31 15:05:17,416 INFO L273 TraceCheckUtils]: 32: Hoare triple {26167#(or (not (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 1))) (and (<= ULTIMATE.start_main_~i~6 31) (<= 31 ULTIMATE.start_main_~i~6)))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {26168#(or (<= (+ ULTIMATE.start_main_~i~6 1) ULTIMATE.start_main_~MAX~6) (= 32 ULTIMATE.start_main_~MAX~6))} is VALID [2019-01-31 15:05:17,417 INFO L273 TraceCheckUtils]: 33: Hoare triple {26168#(or (<= (+ ULTIMATE.start_main_~i~6 1) ULTIMATE.start_main_~MAX~6) (= 32 ULTIMATE.start_main_~MAX~6))} assume !(main_~i~6 < main_~MAX~6);main_~str1~6 := main_~str1~6[main_~MAX~6 - 1 := 0];main_~j~6 := 0;main_~i~6 := main_~MAX~6 - 1; {26169#(= (+ ULTIMATE.start_main_~j~6 32) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:05:17,418 INFO L273 TraceCheckUtils]: 34: Hoare triple {26169#(= (+ ULTIMATE.start_main_~j~6 32) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {26170#(= (+ ULTIMATE.start_main_~j~6 31) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:05:17,419 INFO L273 TraceCheckUtils]: 35: Hoare triple {26170#(= (+ ULTIMATE.start_main_~j~6 31) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {26171#(= (+ ULTIMATE.start_main_~j~6 30) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:05:17,420 INFO L273 TraceCheckUtils]: 36: Hoare triple {26171#(= (+ ULTIMATE.start_main_~j~6 30) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {26172#(= (+ ULTIMATE.start_main_~j~6 29) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:05:17,421 INFO L273 TraceCheckUtils]: 37: Hoare triple {26172#(= (+ ULTIMATE.start_main_~j~6 29) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {26173#(= (+ ULTIMATE.start_main_~j~6 28) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:05:17,422 INFO L273 TraceCheckUtils]: 38: Hoare triple {26173#(= (+ ULTIMATE.start_main_~j~6 28) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {26174#(= (+ ULTIMATE.start_main_~j~6 27) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:05:17,423 INFO L273 TraceCheckUtils]: 39: Hoare triple {26174#(= (+ ULTIMATE.start_main_~j~6 27) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {26175#(= (+ ULTIMATE.start_main_~j~6 26) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:05:17,424 INFO L273 TraceCheckUtils]: 40: Hoare triple {26175#(= (+ ULTIMATE.start_main_~j~6 26) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {26176#(= (+ ULTIMATE.start_main_~j~6 25) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:05:17,425 INFO L273 TraceCheckUtils]: 41: Hoare triple {26176#(= (+ ULTIMATE.start_main_~j~6 25) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {26177#(= (+ ULTIMATE.start_main_~j~6 24) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:05:17,426 INFO L273 TraceCheckUtils]: 42: Hoare triple {26177#(= (+ ULTIMATE.start_main_~j~6 24) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {26178#(= (+ ULTIMATE.start_main_~j~6 23) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:05:17,427 INFO L273 TraceCheckUtils]: 43: Hoare triple {26178#(= (+ ULTIMATE.start_main_~j~6 23) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {26179#(= (+ ULTIMATE.start_main_~j~6 22) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:05:17,428 INFO L273 TraceCheckUtils]: 44: Hoare triple {26179#(= (+ ULTIMATE.start_main_~j~6 22) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {26180#(= (+ ULTIMATE.start_main_~j~6 21) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:05:17,428 INFO L273 TraceCheckUtils]: 45: Hoare triple {26180#(= (+ ULTIMATE.start_main_~j~6 21) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {26181#(= (+ ULTIMATE.start_main_~j~6 20) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:05:17,429 INFO L273 TraceCheckUtils]: 46: Hoare triple {26181#(= (+ ULTIMATE.start_main_~j~6 20) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {26182#(= (+ ULTIMATE.start_main_~j~6 19) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:05:17,430 INFO L273 TraceCheckUtils]: 47: Hoare triple {26182#(= (+ ULTIMATE.start_main_~j~6 19) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {26183#(= (+ ULTIMATE.start_main_~j~6 18) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:05:17,431 INFO L273 TraceCheckUtils]: 48: Hoare triple {26183#(= (+ ULTIMATE.start_main_~j~6 18) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {26184#(= (+ ULTIMATE.start_main_~j~6 17) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:05:17,432 INFO L273 TraceCheckUtils]: 49: Hoare triple {26184#(= (+ ULTIMATE.start_main_~j~6 17) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {26185#(= (+ ULTIMATE.start_main_~j~6 16) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:05:17,433 INFO L273 TraceCheckUtils]: 50: Hoare triple {26185#(= (+ ULTIMATE.start_main_~j~6 16) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {26186#(= (+ ULTIMATE.start_main_~j~6 15) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:05:17,434 INFO L273 TraceCheckUtils]: 51: Hoare triple {26186#(= (+ ULTIMATE.start_main_~j~6 15) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {26187#(= (+ ULTIMATE.start_main_~j~6 14) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:05:17,435 INFO L273 TraceCheckUtils]: 52: Hoare triple {26187#(= (+ ULTIMATE.start_main_~j~6 14) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {26188#(= (+ ULTIMATE.start_main_~j~6 13) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:05:17,436 INFO L273 TraceCheckUtils]: 53: Hoare triple {26188#(= (+ ULTIMATE.start_main_~j~6 13) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {26189#(= (+ ULTIMATE.start_main_~j~6 12) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:05:17,437 INFO L273 TraceCheckUtils]: 54: Hoare triple {26189#(= (+ ULTIMATE.start_main_~j~6 12) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {26190#(= (+ ULTIMATE.start_main_~j~6 11) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:05:17,438 INFO L273 TraceCheckUtils]: 55: Hoare triple {26190#(= (+ ULTIMATE.start_main_~j~6 11) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {26191#(= (+ ULTIMATE.start_main_~j~6 10) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:05:17,439 INFO L273 TraceCheckUtils]: 56: Hoare triple {26191#(= (+ ULTIMATE.start_main_~j~6 10) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {26192#(= (+ ULTIMATE.start_main_~j~6 9) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:05:17,440 INFO L273 TraceCheckUtils]: 57: Hoare triple {26192#(= (+ ULTIMATE.start_main_~j~6 9) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {26193#(= (+ ULTIMATE.start_main_~j~6 8) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:05:17,441 INFO L273 TraceCheckUtils]: 58: Hoare triple {26193#(= (+ ULTIMATE.start_main_~j~6 8) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {26194#(= (+ ULTIMATE.start_main_~j~6 7) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:05:17,442 INFO L273 TraceCheckUtils]: 59: Hoare triple {26194#(= (+ ULTIMATE.start_main_~j~6 7) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {26195#(= (+ ULTIMATE.start_main_~j~6 6) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:05:17,443 INFO L273 TraceCheckUtils]: 60: Hoare triple {26195#(= (+ ULTIMATE.start_main_~j~6 6) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {26196#(= (+ ULTIMATE.start_main_~j~6 5) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:05:17,444 INFO L273 TraceCheckUtils]: 61: Hoare triple {26196#(= (+ ULTIMATE.start_main_~j~6 5) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {26197#(= (+ ULTIMATE.start_main_~j~6 4) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:05:17,444 INFO L273 TraceCheckUtils]: 62: Hoare triple {26197#(= (+ ULTIMATE.start_main_~j~6 4) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {26198#(= (+ ULTIMATE.start_main_~j~6 3) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:05:17,445 INFO L273 TraceCheckUtils]: 63: Hoare triple {26198#(= (+ ULTIMATE.start_main_~j~6 3) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {26199#(= (+ ULTIMATE.start_main_~j~6 2) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:05:17,446 INFO L273 TraceCheckUtils]: 64: Hoare triple {26199#(= (+ ULTIMATE.start_main_~j~6 2) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {26200#(= (+ ULTIMATE.start_main_~j~6 1) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:05:17,447 INFO L273 TraceCheckUtils]: 65: Hoare triple {26200#(= (+ ULTIMATE.start_main_~j~6 1) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {26201#(= (select ULTIMATE.start_main_~str1~6 0) (select ULTIMATE.start_main_~str2~6 (+ ULTIMATE.start_main_~MAX~6 (- 1))))} is VALID [2019-01-31 15:05:17,448 INFO L273 TraceCheckUtils]: 66: Hoare triple {26201#(= (select ULTIMATE.start_main_~str1~6 0) (select ULTIMATE.start_main_~str2~6 (+ ULTIMATE.start_main_~MAX~6 (- 1))))} assume !(main_~i~6 >= 0);main_~j~6 := main_~MAX~6 - 1;main_~i~6 := 0;assume !!(main_~i~6 < main_~MAX~6);__VERIFIER_assert_#in~cond := (if main_~str1~6[main_~i~6] == main_~str2~6[main_~j~6] then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond;assume __VERIFIER_assert_~cond == 0;assume !false; {26135#false} is VALID [2019-01-31 15:05:17,449 INFO L273 TraceCheckUtils]: 67: Hoare triple {26135#false} assume !false; {26135#false} is VALID [2019-01-31 15:05:17,456 INFO L134 CoverageAnalysis]: Checked inductivity of 1056 backedges. 0 proven. 1056 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-31 15:05:17,456 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-31 15:05:17,456 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-01-31 15:05:17,456 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-01-31 15:05:17,456 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-01-31 15:05:17,456 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-31 15:05:17,456 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 49 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 49 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-01-31 15:05:17,465 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2019-01-31 15:05:17,465 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder TERMS_WITH_SMALL_CONSTANTS_FIRST (IT: FPandBP) [2019-01-31 15:05:17,507 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-01-31 15:05:17,507 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-01-31 15:05:17,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-31 15:05:17,535 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-31 15:05:20,501 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2019-01-31 15:05:20,502 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-01-31 15:05:20,508 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-31 15:05:20,508 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:17, output treesize:16 [2019-01-31 15:05:20,511 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-01-31 15:05:20,511 WARN L398 uantifierElimination]: Input elimination task: ∃ [v_ULTIMATE.start_main_~str2~6_790]. (and (<= 32 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 33)) (= (store v_ULTIMATE.start_main_~str2~6_790 31 (select ULTIMATE.start_main_~str1~6 0)) ULTIMATE.start_main_~str2~6)) [2019-01-31 15:05:20,511 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (and (<= 32 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 33)) (= (select ULTIMATE.start_main_~str2~6 31) (select ULTIMATE.start_main_~str1~6 0))) [2019-01-31 15:05:20,617 INFO L273 TraceCheckUtils]: 0: Hoare triple {26134#true} havoc main_#res;havoc main_#t~nondet0, main_#t~nondet2, main_#t~post1, main_#t~post4, main_#t~post3, main_#t~post6, main_#t~post5, main_~MAX~6, main_~str1~6, main_~str2~6, main_~cont~6, main_~i~6, main_~j~6;main_~MAX~6 := (if main_#t~nondet0 % 4294967296 % 4294967296 <= 2147483647 then main_#t~nondet0 % 4294967296 % 4294967296 else main_#t~nondet0 % 4294967296 % 4294967296 - 4294967296);havoc main_#t~nondet0;havoc main_~str1~6;havoc main_~str2~6;havoc main_~cont~6;havoc main_~i~6;havoc main_~j~6;main_~cont~6 := 0;main_~i~6 := 0; {26134#true} is VALID [2019-01-31 15:05:20,617 INFO L273 TraceCheckUtils]: 1: Hoare triple {26134#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {26134#true} is VALID [2019-01-31 15:05:20,617 INFO L273 TraceCheckUtils]: 2: Hoare triple {26134#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {26134#true} is VALID [2019-01-31 15:05:20,617 INFO L273 TraceCheckUtils]: 3: Hoare triple {26134#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {26134#true} is VALID [2019-01-31 15:05:20,618 INFO L273 TraceCheckUtils]: 4: Hoare triple {26134#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {26134#true} is VALID [2019-01-31 15:05:20,618 INFO L273 TraceCheckUtils]: 5: Hoare triple {26134#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {26134#true} is VALID [2019-01-31 15:05:20,618 INFO L273 TraceCheckUtils]: 6: Hoare triple {26134#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {26134#true} is VALID [2019-01-31 15:05:20,618 INFO L273 TraceCheckUtils]: 7: Hoare triple {26134#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {26134#true} is VALID [2019-01-31 15:05:20,618 INFO L273 TraceCheckUtils]: 8: Hoare triple {26134#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {26134#true} is VALID [2019-01-31 15:05:20,618 INFO L273 TraceCheckUtils]: 9: Hoare triple {26134#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {26134#true} is VALID [2019-01-31 15:05:20,618 INFO L273 TraceCheckUtils]: 10: Hoare triple {26134#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {26134#true} is VALID [2019-01-31 15:05:20,618 INFO L273 TraceCheckUtils]: 11: Hoare triple {26134#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {26134#true} is VALID [2019-01-31 15:05:20,618 INFO L273 TraceCheckUtils]: 12: Hoare triple {26134#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {26134#true} is VALID [2019-01-31 15:05:20,618 INFO L273 TraceCheckUtils]: 13: Hoare triple {26134#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {26134#true} is VALID [2019-01-31 15:05:20,619 INFO L273 TraceCheckUtils]: 14: Hoare triple {26134#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {26134#true} is VALID [2019-01-31 15:05:20,619 INFO L273 TraceCheckUtils]: 15: Hoare triple {26134#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {26134#true} is VALID [2019-01-31 15:05:20,619 INFO L273 TraceCheckUtils]: 16: Hoare triple {26134#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {26134#true} is VALID [2019-01-31 15:05:20,619 INFO L273 TraceCheckUtils]: 17: Hoare triple {26134#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {26134#true} is VALID [2019-01-31 15:05:20,619 INFO L273 TraceCheckUtils]: 18: Hoare triple {26134#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {26134#true} is VALID [2019-01-31 15:05:20,619 INFO L273 TraceCheckUtils]: 19: Hoare triple {26134#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {26134#true} is VALID [2019-01-31 15:05:20,619 INFO L273 TraceCheckUtils]: 20: Hoare triple {26134#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {26134#true} is VALID [2019-01-31 15:05:20,619 INFO L273 TraceCheckUtils]: 21: Hoare triple {26134#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {26134#true} is VALID [2019-01-31 15:05:20,619 INFO L273 TraceCheckUtils]: 22: Hoare triple {26134#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {26134#true} is VALID [2019-01-31 15:05:20,619 INFO L273 TraceCheckUtils]: 23: Hoare triple {26134#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {26134#true} is VALID [2019-01-31 15:05:20,620 INFO L273 TraceCheckUtils]: 24: Hoare triple {26134#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {26134#true} is VALID [2019-01-31 15:05:20,620 INFO L273 TraceCheckUtils]: 25: Hoare triple {26134#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {26134#true} is VALID [2019-01-31 15:05:20,620 INFO L273 TraceCheckUtils]: 26: Hoare triple {26134#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {26134#true} is VALID [2019-01-31 15:05:20,620 INFO L273 TraceCheckUtils]: 27: Hoare triple {26134#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {26134#true} is VALID [2019-01-31 15:05:20,620 INFO L273 TraceCheckUtils]: 28: Hoare triple {26134#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {26134#true} is VALID [2019-01-31 15:05:20,620 INFO L273 TraceCheckUtils]: 29: Hoare triple {26134#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {26134#true} is VALID [2019-01-31 15:05:20,620 INFO L273 TraceCheckUtils]: 30: Hoare triple {26134#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {26134#true} is VALID [2019-01-31 15:05:20,620 INFO L273 TraceCheckUtils]: 31: Hoare triple {26134#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {26134#true} is VALID [2019-01-31 15:05:20,620 INFO L273 TraceCheckUtils]: 32: Hoare triple {26134#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {26134#true} is VALID [2019-01-31 15:05:20,621 INFO L273 TraceCheckUtils]: 33: Hoare triple {26134#true} assume !(main_~i~6 < main_~MAX~6);main_~str1~6 := main_~str1~6[main_~MAX~6 - 1 := 0];main_~j~6 := 0;main_~i~6 := main_~MAX~6 - 1; {26304#(and (= ULTIMATE.start_main_~j~6 0) (= (+ ULTIMATE.start_main_~i~6 1) ULTIMATE.start_main_~MAX~6))} is VALID [2019-01-31 15:05:20,622 INFO L273 TraceCheckUtils]: 34: Hoare triple {26304#(and (= ULTIMATE.start_main_~j~6 0) (= (+ ULTIMATE.start_main_~i~6 1) ULTIMATE.start_main_~MAX~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {26308#(and (= ULTIMATE.start_main_~j~6 1) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 2)))} is VALID [2019-01-31 15:05:20,622 INFO L273 TraceCheckUtils]: 35: Hoare triple {26308#(and (= ULTIMATE.start_main_~j~6 1) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 2)))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {26312#(and (= (+ ULTIMATE.start_main_~i~6 3) ULTIMATE.start_main_~MAX~6) (= ULTIMATE.start_main_~j~6 2))} is VALID [2019-01-31 15:05:20,623 INFO L273 TraceCheckUtils]: 36: Hoare triple {26312#(and (= (+ ULTIMATE.start_main_~i~6 3) ULTIMATE.start_main_~MAX~6) (= ULTIMATE.start_main_~j~6 2))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {26316#(and (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 4)) (= ULTIMATE.start_main_~j~6 3))} is VALID [2019-01-31 15:05:20,623 INFO L273 TraceCheckUtils]: 37: Hoare triple {26316#(and (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 4)) (= ULTIMATE.start_main_~j~6 3))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {26320#(and (= ULTIMATE.start_main_~j~6 4) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 5)))} is VALID [2019-01-31 15:05:20,624 INFO L273 TraceCheckUtils]: 38: Hoare triple {26320#(and (= ULTIMATE.start_main_~j~6 4) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 5)))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {26324#(and (= ULTIMATE.start_main_~j~6 5) (= (+ ULTIMATE.start_main_~i~6 6) ULTIMATE.start_main_~MAX~6))} is VALID [2019-01-31 15:05:20,625 INFO L273 TraceCheckUtils]: 39: Hoare triple {26324#(and (= ULTIMATE.start_main_~j~6 5) (= (+ ULTIMATE.start_main_~i~6 6) ULTIMATE.start_main_~MAX~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {26328#(and (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 7)) (= ULTIMATE.start_main_~j~6 6))} is VALID [2019-01-31 15:05:20,626 INFO L273 TraceCheckUtils]: 40: Hoare triple {26328#(and (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 7)) (= ULTIMATE.start_main_~j~6 6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {26332#(and (= ULTIMATE.start_main_~j~6 7) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 8)))} is VALID [2019-01-31 15:05:20,627 INFO L273 TraceCheckUtils]: 41: Hoare triple {26332#(and (= ULTIMATE.start_main_~j~6 7) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 8)))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {26336#(and (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 9)) (= ULTIMATE.start_main_~j~6 8))} is VALID [2019-01-31 15:05:20,628 INFO L273 TraceCheckUtils]: 42: Hoare triple {26336#(and (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 9)) (= ULTIMATE.start_main_~j~6 8))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {26340#(and (= ULTIMATE.start_main_~j~6 9) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 10)))} is VALID [2019-01-31 15:05:20,629 INFO L273 TraceCheckUtils]: 43: Hoare triple {26340#(and (= ULTIMATE.start_main_~j~6 9) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 10)))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {26344#(and (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 11)) (= ULTIMATE.start_main_~j~6 10))} is VALID [2019-01-31 15:05:20,630 INFO L273 TraceCheckUtils]: 44: Hoare triple {26344#(and (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 11)) (= ULTIMATE.start_main_~j~6 10))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {26348#(and (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 12)) (= ULTIMATE.start_main_~j~6 11))} is VALID [2019-01-31 15:05:20,631 INFO L273 TraceCheckUtils]: 45: Hoare triple {26348#(and (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 12)) (= ULTIMATE.start_main_~j~6 11))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {26352#(and (= ULTIMATE.start_main_~j~6 12) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 13)))} is VALID [2019-01-31 15:05:20,632 INFO L273 TraceCheckUtils]: 46: Hoare triple {26352#(and (= ULTIMATE.start_main_~j~6 12) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 13)))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {26356#(and (= ULTIMATE.start_main_~j~6 13) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 14)))} is VALID [2019-01-31 15:05:20,633 INFO L273 TraceCheckUtils]: 47: Hoare triple {26356#(and (= ULTIMATE.start_main_~j~6 13) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 14)))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {26360#(and (= ULTIMATE.start_main_~j~6 14) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 15)))} is VALID [2019-01-31 15:05:20,634 INFO L273 TraceCheckUtils]: 48: Hoare triple {26360#(and (= ULTIMATE.start_main_~j~6 14) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 15)))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {26364#(and (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 16)) (= ULTIMATE.start_main_~j~6 15))} is VALID [2019-01-31 15:05:20,635 INFO L273 TraceCheckUtils]: 49: Hoare triple {26364#(and (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 16)) (= ULTIMATE.start_main_~j~6 15))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {26368#(and (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 17)) (= ULTIMATE.start_main_~j~6 16))} is VALID [2019-01-31 15:05:20,636 INFO L273 TraceCheckUtils]: 50: Hoare triple {26368#(and (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 17)) (= ULTIMATE.start_main_~j~6 16))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {26372#(and (= ULTIMATE.start_main_~j~6 17) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 18)))} is VALID [2019-01-31 15:05:20,637 INFO L273 TraceCheckUtils]: 51: Hoare triple {26372#(and (= ULTIMATE.start_main_~j~6 17) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 18)))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {26376#(and (= ULTIMATE.start_main_~j~6 18) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 19)))} is VALID [2019-01-31 15:05:20,638 INFO L273 TraceCheckUtils]: 52: Hoare triple {26376#(and (= ULTIMATE.start_main_~j~6 18) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 19)))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {26380#(and (= ULTIMATE.start_main_~j~6 19) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 20)))} is VALID [2019-01-31 15:05:20,639 INFO L273 TraceCheckUtils]: 53: Hoare triple {26380#(and (= ULTIMATE.start_main_~j~6 19) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 20)))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {26384#(and (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 21)) (= ULTIMATE.start_main_~j~6 20))} is VALID [2019-01-31 15:05:20,640 INFO L273 TraceCheckUtils]: 54: Hoare triple {26384#(and (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 21)) (= ULTIMATE.start_main_~j~6 20))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {26388#(and (= ULTIMATE.start_main_~j~6 21) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 22)))} is VALID [2019-01-31 15:05:20,641 INFO L273 TraceCheckUtils]: 55: Hoare triple {26388#(and (= ULTIMATE.start_main_~j~6 21) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 22)))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {26392#(and (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 23)) (= ULTIMATE.start_main_~j~6 22))} is VALID [2019-01-31 15:05:20,642 INFO L273 TraceCheckUtils]: 56: Hoare triple {26392#(and (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 23)) (= ULTIMATE.start_main_~j~6 22))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {26396#(and (= ULTIMATE.start_main_~j~6 23) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 24)))} is VALID [2019-01-31 15:05:20,643 INFO L273 TraceCheckUtils]: 57: Hoare triple {26396#(and (= ULTIMATE.start_main_~j~6 23) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 24)))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {26400#(and (= ULTIMATE.start_main_~j~6 24) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 25)))} is VALID [2019-01-31 15:05:20,644 INFO L273 TraceCheckUtils]: 58: Hoare triple {26400#(and (= ULTIMATE.start_main_~j~6 24) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 25)))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {26404#(and (= ULTIMATE.start_main_~j~6 25) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 26)))} is VALID [2019-01-31 15:05:20,645 INFO L273 TraceCheckUtils]: 59: Hoare triple {26404#(and (= ULTIMATE.start_main_~j~6 25) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 26)))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {26408#(and (= ULTIMATE.start_main_~j~6 26) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 27)))} is VALID [2019-01-31 15:05:20,646 INFO L273 TraceCheckUtils]: 60: Hoare triple {26408#(and (= ULTIMATE.start_main_~j~6 26) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 27)))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {26412#(and (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 28)) (= ULTIMATE.start_main_~j~6 27))} is VALID [2019-01-31 15:05:20,647 INFO L273 TraceCheckUtils]: 61: Hoare triple {26412#(and (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 28)) (= ULTIMATE.start_main_~j~6 27))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {26416#(and (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 29)) (= ULTIMATE.start_main_~j~6 28))} is VALID [2019-01-31 15:05:20,648 INFO L273 TraceCheckUtils]: 62: Hoare triple {26416#(and (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 29)) (= ULTIMATE.start_main_~j~6 28))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {26420#(and (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 30)) (= ULTIMATE.start_main_~j~6 29))} is VALID [2019-01-31 15:05:20,649 INFO L273 TraceCheckUtils]: 63: Hoare triple {26420#(and (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 30)) (= ULTIMATE.start_main_~j~6 29))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {26424#(and (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 31)) (= ULTIMATE.start_main_~j~6 30))} is VALID [2019-01-31 15:05:20,650 INFO L273 TraceCheckUtils]: 64: Hoare triple {26424#(and (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 31)) (= ULTIMATE.start_main_~j~6 30))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {26428#(and (= ULTIMATE.start_main_~j~6 31) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 32)))} is VALID [2019-01-31 15:05:20,651 INFO L273 TraceCheckUtils]: 65: Hoare triple {26428#(and (= ULTIMATE.start_main_~j~6 31) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 32)))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {26432#(and (<= 32 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 33)) (= (select ULTIMATE.start_main_~str2~6 31) (select ULTIMATE.start_main_~str1~6 0)))} is VALID [2019-01-31 15:05:20,652 INFO L273 TraceCheckUtils]: 66: Hoare triple {26432#(and (<= 32 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 33)) (= (select ULTIMATE.start_main_~str2~6 31) (select ULTIMATE.start_main_~str1~6 0)))} assume !(main_~i~6 >= 0);main_~j~6 := main_~MAX~6 - 1;main_~i~6 := 0;assume !!(main_~i~6 < main_~MAX~6);__VERIFIER_assert_#in~cond := (if main_~str1~6[main_~i~6] == main_~str2~6[main_~j~6] then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond;assume __VERIFIER_assert_~cond == 0;assume !false; {26135#false} is VALID [2019-01-31 15:05:20,652 INFO L273 TraceCheckUtils]: 67: Hoare triple {26135#false} assume !false; {26135#false} is VALID [2019-01-31 15:05:20,660 INFO L134 CoverageAnalysis]: Checked inductivity of 1056 backedges. 0 proven. 528 refuted. 0 times theorem prover too weak. 528 trivial. 0 not checked. [2019-01-31 15:05:20,661 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2019-01-31 15:05:20,795 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 5 [2019-01-31 15:05:20,804 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-01-31 15:05:20,815 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-31 15:05:20,815 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:22, output treesize:12 [2019-01-31 15:05:24,120 INFO L273 TraceCheckUtils]: 67: Hoare triple {26135#false} assume !false; {26135#false} is VALID [2019-01-31 15:05:24,121 INFO L273 TraceCheckUtils]: 66: Hoare triple {26442#(or (= (select ULTIMATE.start_main_~str1~6 0) (select ULTIMATE.start_main_~str2~6 (+ ULTIMATE.start_main_~MAX~6 (- 1)))) (<= 0 ULTIMATE.start_main_~i~6))} assume !(main_~i~6 >= 0);main_~j~6 := main_~MAX~6 - 1;main_~i~6 := 0;assume !!(main_~i~6 < main_~MAX~6);__VERIFIER_assert_#in~cond := (if main_~str1~6[main_~i~6] == main_~str2~6[main_~j~6] then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond;assume __VERIFIER_assert_~cond == 0;assume !false; {26135#false} is VALID [2019-01-31 15:05:24,122 INFO L273 TraceCheckUtils]: 65: Hoare triple {26446#(or (< ULTIMATE.start_main_~i~6 0) (< 0 ULTIMATE.start_main_~i~6) (= (+ ULTIMATE.start_main_~j~6 1) ULTIMATE.start_main_~MAX~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {26442#(or (= (select ULTIMATE.start_main_~str1~6 0) (select ULTIMATE.start_main_~str2~6 (+ ULTIMATE.start_main_~MAX~6 (- 1)))) (<= 0 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:05:24,123 INFO L273 TraceCheckUtils]: 64: Hoare triple {26450#(or (= (+ ULTIMATE.start_main_~j~6 2) ULTIMATE.start_main_~MAX~6) (< 1 ULTIMATE.start_main_~i~6) (< ULTIMATE.start_main_~i~6 1))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {26446#(or (< ULTIMATE.start_main_~i~6 0) (< 0 ULTIMATE.start_main_~i~6) (= (+ ULTIMATE.start_main_~j~6 1) ULTIMATE.start_main_~MAX~6))} is VALID [2019-01-31 15:05:24,125 INFO L273 TraceCheckUtils]: 63: Hoare triple {26454#(or (= (+ ULTIMATE.start_main_~j~6 3) ULTIMATE.start_main_~MAX~6) (< ULTIMATE.start_main_~i~6 2) (< 2 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {26450#(or (= (+ ULTIMATE.start_main_~j~6 2) ULTIMATE.start_main_~MAX~6) (< 1 ULTIMATE.start_main_~i~6) (< ULTIMATE.start_main_~i~6 1))} is VALID [2019-01-31 15:05:24,126 INFO L273 TraceCheckUtils]: 62: Hoare triple {26458#(or (= (+ ULTIMATE.start_main_~j~6 4) ULTIMATE.start_main_~MAX~6) (< ULTIMATE.start_main_~i~6 3) (< 3 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {26454#(or (= (+ ULTIMATE.start_main_~j~6 3) ULTIMATE.start_main_~MAX~6) (< ULTIMATE.start_main_~i~6 2) (< 2 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:05:24,127 INFO L273 TraceCheckUtils]: 61: Hoare triple {26462#(or (= (+ ULTIMATE.start_main_~j~6 5) ULTIMATE.start_main_~MAX~6) (< 4 ULTIMATE.start_main_~i~6) (< ULTIMATE.start_main_~i~6 4))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {26458#(or (= (+ ULTIMATE.start_main_~j~6 4) ULTIMATE.start_main_~MAX~6) (< ULTIMATE.start_main_~i~6 3) (< 3 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:05:24,128 INFO L273 TraceCheckUtils]: 60: Hoare triple {26466#(or (< ULTIMATE.start_main_~i~6 5) (< 5 ULTIMATE.start_main_~i~6) (= (+ ULTIMATE.start_main_~j~6 6) ULTIMATE.start_main_~MAX~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {26462#(or (= (+ ULTIMATE.start_main_~j~6 5) ULTIMATE.start_main_~MAX~6) (< 4 ULTIMATE.start_main_~i~6) (< ULTIMATE.start_main_~i~6 4))} is VALID [2019-01-31 15:05:24,130 INFO L273 TraceCheckUtils]: 59: Hoare triple {26470#(or (< ULTIMATE.start_main_~i~6 6) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 7)) (< 6 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {26466#(or (< ULTIMATE.start_main_~i~6 5) (< 5 ULTIMATE.start_main_~i~6) (= (+ ULTIMATE.start_main_~j~6 6) ULTIMATE.start_main_~MAX~6))} is VALID [2019-01-31 15:05:24,132 INFO L273 TraceCheckUtils]: 58: Hoare triple {26474#(or (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 8)) (< ULTIMATE.start_main_~i~6 7) (< 7 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {26470#(or (< ULTIMATE.start_main_~i~6 6) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 7)) (< 6 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:05:24,133 INFO L273 TraceCheckUtils]: 57: Hoare triple {26478#(or (< 8 ULTIMATE.start_main_~i~6) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 9)) (< ULTIMATE.start_main_~i~6 8))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {26474#(or (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 8)) (< ULTIMATE.start_main_~i~6 7) (< 7 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:05:24,136 INFO L273 TraceCheckUtils]: 56: Hoare triple {26482#(or (< ULTIMATE.start_main_~i~6 9) (= (+ ULTIMATE.start_main_~j~6 10) ULTIMATE.start_main_~MAX~6) (< 9 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {26478#(or (< 8 ULTIMATE.start_main_~i~6) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 9)) (< ULTIMATE.start_main_~i~6 8))} is VALID [2019-01-31 15:05:24,137 INFO L273 TraceCheckUtils]: 55: Hoare triple {26486#(or (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 11)) (< 10 ULTIMATE.start_main_~i~6) (< ULTIMATE.start_main_~i~6 10))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {26482#(or (< ULTIMATE.start_main_~i~6 9) (= (+ ULTIMATE.start_main_~j~6 10) ULTIMATE.start_main_~MAX~6) (< 9 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:05:24,138 INFO L273 TraceCheckUtils]: 54: Hoare triple {26490#(or (< ULTIMATE.start_main_~i~6 11) (= (+ ULTIMATE.start_main_~j~6 12) ULTIMATE.start_main_~MAX~6) (< 11 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {26486#(or (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 11)) (< 10 ULTIMATE.start_main_~i~6) (< ULTIMATE.start_main_~i~6 10))} is VALID [2019-01-31 15:05:24,140 INFO L273 TraceCheckUtils]: 53: Hoare triple {26494#(or (< 12 ULTIMATE.start_main_~i~6) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 13)) (< ULTIMATE.start_main_~i~6 12))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {26490#(or (< ULTIMATE.start_main_~i~6 11) (= (+ ULTIMATE.start_main_~j~6 12) ULTIMATE.start_main_~MAX~6) (< 11 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:05:24,141 INFO L273 TraceCheckUtils]: 52: Hoare triple {26498#(or (< ULTIMATE.start_main_~i~6 13) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 14)) (< 13 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {26494#(or (< 12 ULTIMATE.start_main_~i~6) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 13)) (< ULTIMATE.start_main_~i~6 12))} is VALID [2019-01-31 15:05:24,142 INFO L273 TraceCheckUtils]: 51: Hoare triple {26502#(or (< 14 ULTIMATE.start_main_~i~6) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 15)) (< ULTIMATE.start_main_~i~6 14))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {26498#(or (< ULTIMATE.start_main_~i~6 13) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 14)) (< 13 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:05:24,142 INFO L273 TraceCheckUtils]: 50: Hoare triple {26506#(or (< 15 ULTIMATE.start_main_~i~6) (< ULTIMATE.start_main_~i~6 15) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 16)))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {26502#(or (< 14 ULTIMATE.start_main_~i~6) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 15)) (< ULTIMATE.start_main_~i~6 14))} is VALID [2019-01-31 15:05:24,144 INFO L273 TraceCheckUtils]: 49: Hoare triple {26510#(or (< ULTIMATE.start_main_~i~6 16) (< 16 ULTIMATE.start_main_~i~6) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 17)))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {26506#(or (< 15 ULTIMATE.start_main_~i~6) (< ULTIMATE.start_main_~i~6 15) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 16)))} is VALID [2019-01-31 15:05:24,146 INFO L273 TraceCheckUtils]: 48: Hoare triple {26514#(or (< ULTIMATE.start_main_~i~6 17) (< 17 ULTIMATE.start_main_~i~6) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 18)))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {26510#(or (< ULTIMATE.start_main_~i~6 16) (< 16 ULTIMATE.start_main_~i~6) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 17)))} is VALID [2019-01-31 15:05:24,149 INFO L273 TraceCheckUtils]: 47: Hoare triple {26518#(or (< ULTIMATE.start_main_~i~6 18) (< 18 ULTIMATE.start_main_~i~6) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 19)))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {26514#(or (< ULTIMATE.start_main_~i~6 17) (< 17 ULTIMATE.start_main_~i~6) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 18)))} is VALID [2019-01-31 15:05:24,149 INFO L273 TraceCheckUtils]: 46: Hoare triple {26522#(or (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 20)) (< 19 ULTIMATE.start_main_~i~6) (< ULTIMATE.start_main_~i~6 19))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {26518#(or (< ULTIMATE.start_main_~i~6 18) (< 18 ULTIMATE.start_main_~i~6) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 19)))} is VALID [2019-01-31 15:05:24,151 INFO L273 TraceCheckUtils]: 45: Hoare triple {26526#(or (< ULTIMATE.start_main_~i~6 20) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 21)) (< 20 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {26522#(or (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 20)) (< 19 ULTIMATE.start_main_~i~6) (< ULTIMATE.start_main_~i~6 19))} is VALID [2019-01-31 15:05:24,151 INFO L273 TraceCheckUtils]: 44: Hoare triple {26530#(or (< 21 ULTIMATE.start_main_~i~6) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 22)) (< ULTIMATE.start_main_~i~6 21))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {26526#(or (< ULTIMATE.start_main_~i~6 20) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 21)) (< 20 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:05:24,153 INFO L273 TraceCheckUtils]: 43: Hoare triple {26534#(or (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 23)) (< ULTIMATE.start_main_~i~6 22) (< 22 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {26530#(or (< 21 ULTIMATE.start_main_~i~6) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 22)) (< ULTIMATE.start_main_~i~6 21))} is VALID [2019-01-31 15:05:24,153 INFO L273 TraceCheckUtils]: 42: Hoare triple {26538#(or (< ULTIMATE.start_main_~i~6 23) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 24)) (< 23 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {26534#(or (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 23)) (< ULTIMATE.start_main_~i~6 22) (< 22 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:05:24,155 INFO L273 TraceCheckUtils]: 41: Hoare triple {26542#(or (< 24 ULTIMATE.start_main_~i~6) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 25)) (< ULTIMATE.start_main_~i~6 24))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {26538#(or (< ULTIMATE.start_main_~i~6 23) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 24)) (< 23 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:05:24,156 INFO L273 TraceCheckUtils]: 40: Hoare triple {26546#(or (< 25 ULTIMATE.start_main_~i~6) (< ULTIMATE.start_main_~i~6 25) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 26)))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {26542#(or (< 24 ULTIMATE.start_main_~i~6) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 25)) (< ULTIMATE.start_main_~i~6 24))} is VALID [2019-01-31 15:05:24,157 INFO L273 TraceCheckUtils]: 39: Hoare triple {26550#(or (< 26 ULTIMATE.start_main_~i~6) (< ULTIMATE.start_main_~i~6 26) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 27)))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {26546#(or (< 25 ULTIMATE.start_main_~i~6) (< ULTIMATE.start_main_~i~6 25) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 26)))} is VALID [2019-01-31 15:05:24,158 INFO L273 TraceCheckUtils]: 38: Hoare triple {26554#(or (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 28)) (< 27 ULTIMATE.start_main_~i~6) (< ULTIMATE.start_main_~i~6 27))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {26550#(or (< 26 ULTIMATE.start_main_~i~6) (< ULTIMATE.start_main_~i~6 26) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 27)))} is VALID [2019-01-31 15:05:24,163 INFO L273 TraceCheckUtils]: 37: Hoare triple {26558#(or (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 29)) (< 28 ULTIMATE.start_main_~i~6) (< ULTIMATE.start_main_~i~6 28))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {26554#(or (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 28)) (< 27 ULTIMATE.start_main_~i~6) (< ULTIMATE.start_main_~i~6 27))} is VALID [2019-01-31 15:05:24,167 INFO L273 TraceCheckUtils]: 36: Hoare triple {26562#(or (< 29 ULTIMATE.start_main_~i~6) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 30)) (< ULTIMATE.start_main_~i~6 29))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {26558#(or (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 29)) (< 28 ULTIMATE.start_main_~i~6) (< ULTIMATE.start_main_~i~6 28))} is VALID [2019-01-31 15:05:24,171 INFO L273 TraceCheckUtils]: 35: Hoare triple {26566#(or (< ULTIMATE.start_main_~i~6 30) (= (+ ULTIMATE.start_main_~j~6 31) ULTIMATE.start_main_~MAX~6) (< 30 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {26562#(or (< 29 ULTIMATE.start_main_~i~6) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 30)) (< ULTIMATE.start_main_~i~6 29))} is VALID [2019-01-31 15:05:24,175 INFO L273 TraceCheckUtils]: 34: Hoare triple {26570#(or (< 31 ULTIMATE.start_main_~i~6) (= (+ ULTIMATE.start_main_~j~6 32) ULTIMATE.start_main_~MAX~6) (< ULTIMATE.start_main_~i~6 31))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {26566#(or (< ULTIMATE.start_main_~i~6 30) (= (+ ULTIMATE.start_main_~j~6 31) ULTIMATE.start_main_~MAX~6) (< 30 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:05:24,175 INFO L273 TraceCheckUtils]: 33: Hoare triple {26134#true} assume !(main_~i~6 < main_~MAX~6);main_~str1~6 := main_~str1~6[main_~MAX~6 - 1 := 0];main_~j~6 := 0;main_~i~6 := main_~MAX~6 - 1; {26570#(or (< 31 ULTIMATE.start_main_~i~6) (= (+ ULTIMATE.start_main_~j~6 32) ULTIMATE.start_main_~MAX~6) (< ULTIMATE.start_main_~i~6 31))} is VALID [2019-01-31 15:05:24,176 INFO L273 TraceCheckUtils]: 32: Hoare triple {26134#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {26134#true} is VALID [2019-01-31 15:05:24,176 INFO L273 TraceCheckUtils]: 31: Hoare triple {26134#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {26134#true} is VALID [2019-01-31 15:05:24,176 INFO L273 TraceCheckUtils]: 30: Hoare triple {26134#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {26134#true} is VALID [2019-01-31 15:05:24,176 INFO L273 TraceCheckUtils]: 29: Hoare triple {26134#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {26134#true} is VALID [2019-01-31 15:05:24,176 INFO L273 TraceCheckUtils]: 28: Hoare triple {26134#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {26134#true} is VALID [2019-01-31 15:05:24,176 INFO L273 TraceCheckUtils]: 27: Hoare triple {26134#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {26134#true} is VALID [2019-01-31 15:05:24,176 INFO L273 TraceCheckUtils]: 26: Hoare triple {26134#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {26134#true} is VALID [2019-01-31 15:05:24,176 INFO L273 TraceCheckUtils]: 25: Hoare triple {26134#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {26134#true} is VALID [2019-01-31 15:05:24,176 INFO L273 TraceCheckUtils]: 24: Hoare triple {26134#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {26134#true} is VALID [2019-01-31 15:05:24,176 INFO L273 TraceCheckUtils]: 23: Hoare triple {26134#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {26134#true} is VALID [2019-01-31 15:05:24,177 INFO L273 TraceCheckUtils]: 22: Hoare triple {26134#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {26134#true} is VALID [2019-01-31 15:05:24,177 INFO L273 TraceCheckUtils]: 21: Hoare triple {26134#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {26134#true} is VALID [2019-01-31 15:05:24,177 INFO L273 TraceCheckUtils]: 20: Hoare triple {26134#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {26134#true} is VALID [2019-01-31 15:05:24,177 INFO L273 TraceCheckUtils]: 19: Hoare triple {26134#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {26134#true} is VALID [2019-01-31 15:05:24,177 INFO L273 TraceCheckUtils]: 18: Hoare triple {26134#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {26134#true} is VALID [2019-01-31 15:05:24,177 INFO L273 TraceCheckUtils]: 17: Hoare triple {26134#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {26134#true} is VALID [2019-01-31 15:05:24,177 INFO L273 TraceCheckUtils]: 16: Hoare triple {26134#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {26134#true} is VALID [2019-01-31 15:05:24,177 INFO L273 TraceCheckUtils]: 15: Hoare triple {26134#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {26134#true} is VALID [2019-01-31 15:05:24,177 INFO L273 TraceCheckUtils]: 14: Hoare triple {26134#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {26134#true} is VALID [2019-01-31 15:05:24,178 INFO L273 TraceCheckUtils]: 13: Hoare triple {26134#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {26134#true} is VALID [2019-01-31 15:05:24,178 INFO L273 TraceCheckUtils]: 12: Hoare triple {26134#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {26134#true} is VALID [2019-01-31 15:05:24,178 INFO L273 TraceCheckUtils]: 11: Hoare triple {26134#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {26134#true} is VALID [2019-01-31 15:05:24,178 INFO L273 TraceCheckUtils]: 10: Hoare triple {26134#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {26134#true} is VALID [2019-01-31 15:05:24,178 INFO L273 TraceCheckUtils]: 9: Hoare triple {26134#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {26134#true} is VALID [2019-01-31 15:05:24,178 INFO L273 TraceCheckUtils]: 8: Hoare triple {26134#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {26134#true} is VALID [2019-01-31 15:05:24,178 INFO L273 TraceCheckUtils]: 7: Hoare triple {26134#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {26134#true} is VALID [2019-01-31 15:05:24,178 INFO L273 TraceCheckUtils]: 6: Hoare triple {26134#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {26134#true} is VALID [2019-01-31 15:05:24,178 INFO L273 TraceCheckUtils]: 5: Hoare triple {26134#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {26134#true} is VALID [2019-01-31 15:05:24,178 INFO L273 TraceCheckUtils]: 4: Hoare triple {26134#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {26134#true} is VALID [2019-01-31 15:05:24,179 INFO L273 TraceCheckUtils]: 3: Hoare triple {26134#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {26134#true} is VALID [2019-01-31 15:05:24,179 INFO L273 TraceCheckUtils]: 2: Hoare triple {26134#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {26134#true} is VALID [2019-01-31 15:05:24,179 INFO L273 TraceCheckUtils]: 1: Hoare triple {26134#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {26134#true} is VALID [2019-01-31 15:05:24,179 INFO L273 TraceCheckUtils]: 0: Hoare triple {26134#true} havoc main_#res;havoc main_#t~nondet0, main_#t~nondet2, main_#t~post1, main_#t~post4, main_#t~post3, main_#t~post6, main_#t~post5, main_~MAX~6, main_~str1~6, main_~str2~6, main_~cont~6, main_~i~6, main_~j~6;main_~MAX~6 := (if main_#t~nondet0 % 4294967296 % 4294967296 <= 2147483647 then main_#t~nondet0 % 4294967296 % 4294967296 else main_#t~nondet0 % 4294967296 % 4294967296 - 4294967296);havoc main_#t~nondet0;havoc main_~str1~6;havoc main_~str2~6;havoc main_~cont~6;havoc main_~i~6;havoc main_~j~6;main_~cont~6 := 0;main_~i~6 := 0; {26134#true} is VALID [2019-01-31 15:05:24,185 INFO L134 CoverageAnalysis]: Checked inductivity of 1056 backedges. 0 proven. 528 refuted. 0 times theorem prover too weak. 528 trivial. 0 not checked. [2019-01-31 15:05:24,212 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-01-31 15:05:24,213 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [67, 35, 35] total 134 [2019-01-31 15:05:24,213 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-01-31 15:05:24,213 INFO L78 Accepts]: Start accepts. Automaton has 101 states. Word has length 68 [2019-01-31 15:05:24,213 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-01-31 15:05:24,213 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 101 states. [2019-01-31 15:05:24,476 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 104 edges. 104 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-01-31 15:05:24,476 INFO L459 AbstractCegarLoop]: Interpolant automaton has 101 states [2019-01-31 15:05:24,476 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 101 interpolants. [2019-01-31 15:05:24,477 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2378, Invalid=15444, Unknown=0, NotChecked=0, Total=17822 [2019-01-31 15:05:24,477 INFO L87 Difference]: Start difference. First operand 69 states and 70 transitions. Second operand 101 states. [2019-01-31 15:05:47,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 15:05:47,073 INFO L93 Difference]: Finished difference Result 107 states and 111 transitions. [2019-01-31 15:05:47,074 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 104 states. [2019-01-31 15:05:47,074 INFO L78 Accepts]: Start accepts. Automaton has 101 states. Word has length 68 [2019-01-31 15:05:47,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-31 15:05:47,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 101 states. [2019-01-31 15:05:47,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 111 transitions. [2019-01-31 15:05:47,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 101 states. [2019-01-31 15:05:47,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 111 transitions. [2019-01-31 15:05:47,078 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 104 states and 111 transitions. [2019-01-31 15:05:47,225 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 111 edges. 111 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-01-31 15:05:47,226 INFO L225 Difference]: With dead ends: 107 [2019-01-31 15:05:47,227 INFO L226 Difference]: Without dead ends: 71 [2019-01-31 15:05:47,228 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 238 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 169 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2344 ImplicationChecksByTransitivity, 11.5s TimeCoverageRelationStatistics Valid=3787, Invalid=25283, Unknown=0, NotChecked=0, Total=29070 [2019-01-31 15:05:47,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2019-01-31 15:05:48,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2019-01-31 15:05:48,999 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-01-31 15:05:49,000 INFO L82 GeneralOperation]: Start isEquivalent. First operand 71 states. Second operand 71 states. [2019-01-31 15:05:49,000 INFO L74 IsIncluded]: Start isIncluded. First operand 71 states. Second operand 71 states. [2019-01-31 15:05:49,000 INFO L87 Difference]: Start difference. First operand 71 states. Second operand 71 states. [2019-01-31 15:05:49,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 15:05:49,001 INFO L93 Difference]: Finished difference Result 71 states and 72 transitions. [2019-01-31 15:05:49,002 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 72 transitions. [2019-01-31 15:05:49,002 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-31 15:05:49,002 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-01-31 15:05:49,002 INFO L74 IsIncluded]: Start isIncluded. First operand 71 states. Second operand 71 states. [2019-01-31 15:05:49,002 INFO L87 Difference]: Start difference. First operand 71 states. Second operand 71 states. [2019-01-31 15:05:49,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 15:05:49,003 INFO L93 Difference]: Finished difference Result 71 states and 72 transitions. [2019-01-31 15:05:49,004 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 72 transitions. [2019-01-31 15:05:49,004 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-31 15:05:49,004 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-01-31 15:05:49,004 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-01-31 15:05:49,004 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-01-31 15:05:49,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2019-01-31 15:05:49,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 72 transitions. [2019-01-31 15:05:49,005 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 72 transitions. Word has length 68 [2019-01-31 15:05:49,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-31 15:05:49,006 INFO L480 AbstractCegarLoop]: Abstraction has 71 states and 72 transitions. [2019-01-31 15:05:49,006 INFO L481 AbstractCegarLoop]: Interpolant automaton has 101 states. [2019-01-31 15:05:49,006 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 72 transitions. [2019-01-31 15:05:49,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2019-01-31 15:05:49,007 INFO L394 BasicCegarLoop]: Found error trace [2019-01-31 15:05:49,007 INFO L402 BasicCegarLoop]: trace histogram [33, 33, 1, 1, 1, 1] [2019-01-31 15:05:49,007 INFO L423 AbstractCegarLoop]: === Iteration 51 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2019-01-31 15:05:49,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-31 15:05:49,007 INFO L82 PathProgramCache]: Analyzing trace with hash -986406475, now seen corresponding path program 49 times [2019-01-31 15:05:49,007 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-01-31 15:05:49,008 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-31 15:05:49,027 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-01-31 15:05:49,027 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-31 15:05:49,028 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-01-31 15:05:49,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-31 15:05:52,417 INFO L273 TraceCheckUtils]: 0: Hoare triple {27239#true} havoc main_#res;havoc main_#t~nondet0, main_#t~nondet2, main_#t~post1, main_#t~post4, main_#t~post3, main_#t~post6, main_#t~post5, main_~MAX~6, main_~str1~6, main_~str2~6, main_~cont~6, main_~i~6, main_~j~6;main_~MAX~6 := (if main_#t~nondet0 % 4294967296 % 4294967296 <= 2147483647 then main_#t~nondet0 % 4294967296 % 4294967296 else main_#t~nondet0 % 4294967296 % 4294967296 - 4294967296);havoc main_#t~nondet0;havoc main_~str1~6;havoc main_~str2~6;havoc main_~cont~6;havoc main_~i~6;havoc main_~j~6;main_~cont~6 := 0;main_~i~6 := 0; {27241#(and (<= ULTIMATE.start_main_~i~6 0) (<= 0 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:05:52,418 INFO L273 TraceCheckUtils]: 1: Hoare triple {27241#(and (<= ULTIMATE.start_main_~i~6 0) (<= 0 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {27242#(and (<= ULTIMATE.start_main_~i~6 1) (<= 1 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:05:52,419 INFO L273 TraceCheckUtils]: 2: Hoare triple {27242#(and (<= ULTIMATE.start_main_~i~6 1) (<= 1 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {27243#(and (<= ULTIMATE.start_main_~i~6 2) (<= 2 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:05:52,420 INFO L273 TraceCheckUtils]: 3: Hoare triple {27243#(and (<= ULTIMATE.start_main_~i~6 2) (<= 2 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {27244#(and (<= 3 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 3))} is VALID [2019-01-31 15:05:52,421 INFO L273 TraceCheckUtils]: 4: Hoare triple {27244#(and (<= 3 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 3))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {27245#(and (<= ULTIMATE.start_main_~i~6 4) (<= 4 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:05:52,422 INFO L273 TraceCheckUtils]: 5: Hoare triple {27245#(and (<= ULTIMATE.start_main_~i~6 4) (<= 4 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {27246#(and (<= 5 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 5))} is VALID [2019-01-31 15:05:52,423 INFO L273 TraceCheckUtils]: 6: Hoare triple {27246#(and (<= 5 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 5))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {27247#(and (<= ULTIMATE.start_main_~i~6 6) (<= 6 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:05:52,424 INFO L273 TraceCheckUtils]: 7: Hoare triple {27247#(and (<= ULTIMATE.start_main_~i~6 6) (<= 6 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {27248#(and (<= 7 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 7))} is VALID [2019-01-31 15:05:52,425 INFO L273 TraceCheckUtils]: 8: Hoare triple {27248#(and (<= 7 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 7))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {27249#(and (<= ULTIMATE.start_main_~i~6 8) (<= 8 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:05:52,426 INFO L273 TraceCheckUtils]: 9: Hoare triple {27249#(and (<= ULTIMATE.start_main_~i~6 8) (<= 8 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {27250#(and (<= ULTIMATE.start_main_~i~6 9) (<= 9 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:05:52,427 INFO L273 TraceCheckUtils]: 10: Hoare triple {27250#(and (<= ULTIMATE.start_main_~i~6 9) (<= 9 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {27251#(and (<= ULTIMATE.start_main_~i~6 10) (<= 10 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:05:52,428 INFO L273 TraceCheckUtils]: 11: Hoare triple {27251#(and (<= ULTIMATE.start_main_~i~6 10) (<= 10 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {27252#(and (<= 11 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 11))} is VALID [2019-01-31 15:05:52,429 INFO L273 TraceCheckUtils]: 12: Hoare triple {27252#(and (<= 11 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 11))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {27253#(and (<= ULTIMATE.start_main_~i~6 12) (<= 12 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:05:52,430 INFO L273 TraceCheckUtils]: 13: Hoare triple {27253#(and (<= ULTIMATE.start_main_~i~6 12) (<= 12 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {27254#(and (<= ULTIMATE.start_main_~i~6 13) (<= 13 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:05:52,431 INFO L273 TraceCheckUtils]: 14: Hoare triple {27254#(and (<= ULTIMATE.start_main_~i~6 13) (<= 13 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {27255#(and (<= ULTIMATE.start_main_~i~6 14) (<= 14 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:05:52,432 INFO L273 TraceCheckUtils]: 15: Hoare triple {27255#(and (<= ULTIMATE.start_main_~i~6 14) (<= 14 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {27256#(and (<= 15 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 15))} is VALID [2019-01-31 15:05:52,432 INFO L273 TraceCheckUtils]: 16: Hoare triple {27256#(and (<= 15 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 15))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {27257#(and (<= 16 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 16))} is VALID [2019-01-31 15:05:52,433 INFO L273 TraceCheckUtils]: 17: Hoare triple {27257#(and (<= 16 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 16))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {27258#(and (<= ULTIMATE.start_main_~i~6 17) (<= 17 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:05:52,434 INFO L273 TraceCheckUtils]: 18: Hoare triple {27258#(and (<= ULTIMATE.start_main_~i~6 17) (<= 17 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {27259#(and (<= ULTIMATE.start_main_~i~6 18) (<= 18 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:05:52,435 INFO L273 TraceCheckUtils]: 19: Hoare triple {27259#(and (<= ULTIMATE.start_main_~i~6 18) (<= 18 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {27260#(and (<= ULTIMATE.start_main_~i~6 19) (<= 19 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:05:52,436 INFO L273 TraceCheckUtils]: 20: Hoare triple {27260#(and (<= ULTIMATE.start_main_~i~6 19) (<= 19 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {27261#(and (<= ULTIMATE.start_main_~i~6 20) (<= 20 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:05:52,437 INFO L273 TraceCheckUtils]: 21: Hoare triple {27261#(and (<= ULTIMATE.start_main_~i~6 20) (<= 20 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {27262#(and (<= ULTIMATE.start_main_~i~6 21) (<= 21 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:05:52,438 INFO L273 TraceCheckUtils]: 22: Hoare triple {27262#(and (<= ULTIMATE.start_main_~i~6 21) (<= 21 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {27263#(and (<= 22 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 22))} is VALID [2019-01-31 15:05:52,439 INFO L273 TraceCheckUtils]: 23: Hoare triple {27263#(and (<= 22 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 22))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {27264#(and (<= 23 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 23))} is VALID [2019-01-31 15:05:52,440 INFO L273 TraceCheckUtils]: 24: Hoare triple {27264#(and (<= 23 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 23))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {27265#(and (<= ULTIMATE.start_main_~i~6 24) (<= 24 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:05:52,441 INFO L273 TraceCheckUtils]: 25: Hoare triple {27265#(and (<= ULTIMATE.start_main_~i~6 24) (<= 24 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {27266#(and (<= ULTIMATE.start_main_~i~6 25) (<= 25 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:05:52,442 INFO L273 TraceCheckUtils]: 26: Hoare triple {27266#(and (<= ULTIMATE.start_main_~i~6 25) (<= 25 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {27267#(and (<= 26 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 26))} is VALID [2019-01-31 15:05:52,443 INFO L273 TraceCheckUtils]: 27: Hoare triple {27267#(and (<= 26 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 26))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {27268#(and (<= ULTIMATE.start_main_~i~6 27) (<= 27 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:05:52,444 INFO L273 TraceCheckUtils]: 28: Hoare triple {27268#(and (<= ULTIMATE.start_main_~i~6 27) (<= 27 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {27269#(and (<= ULTIMATE.start_main_~i~6 28) (<= 28 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:05:52,445 INFO L273 TraceCheckUtils]: 29: Hoare triple {27269#(and (<= ULTIMATE.start_main_~i~6 28) (<= 28 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {27270#(and (<= 29 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 29))} is VALID [2019-01-31 15:05:52,446 INFO L273 TraceCheckUtils]: 30: Hoare triple {27270#(and (<= 29 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 29))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {27271#(and (<= 30 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 30))} is VALID [2019-01-31 15:05:52,446 INFO L273 TraceCheckUtils]: 31: Hoare triple {27271#(and (<= 30 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 30))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {27272#(and (<= ULTIMATE.start_main_~i~6 31) (<= 31 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:05:52,448 INFO L273 TraceCheckUtils]: 32: Hoare triple {27272#(and (<= ULTIMATE.start_main_~i~6 31) (<= 31 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {27273#(or (not (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 1))) (and (<= 32 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 32)))} is VALID [2019-01-31 15:05:52,449 INFO L273 TraceCheckUtils]: 33: Hoare triple {27273#(or (not (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 1))) (and (<= 32 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 32)))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {27274#(or (<= (+ ULTIMATE.start_main_~i~6 1) ULTIMATE.start_main_~MAX~6) (= 33 ULTIMATE.start_main_~MAX~6))} is VALID [2019-01-31 15:05:52,450 INFO L273 TraceCheckUtils]: 34: Hoare triple {27274#(or (<= (+ ULTIMATE.start_main_~i~6 1) ULTIMATE.start_main_~MAX~6) (= 33 ULTIMATE.start_main_~MAX~6))} assume !(main_~i~6 < main_~MAX~6);main_~str1~6 := main_~str1~6[main_~MAX~6 - 1 := 0];main_~j~6 := 0;main_~i~6 := main_~MAX~6 - 1; {27275#(= (+ ULTIMATE.start_main_~j~6 33) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:05:52,451 INFO L273 TraceCheckUtils]: 35: Hoare triple {27275#(= (+ ULTIMATE.start_main_~j~6 33) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {27276#(= (+ ULTIMATE.start_main_~j~6 32) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:05:52,452 INFO L273 TraceCheckUtils]: 36: Hoare triple {27276#(= (+ ULTIMATE.start_main_~j~6 32) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {27277#(= (+ ULTIMATE.start_main_~j~6 31) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:05:52,453 INFO L273 TraceCheckUtils]: 37: Hoare triple {27277#(= (+ ULTIMATE.start_main_~j~6 31) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {27278#(= (+ ULTIMATE.start_main_~j~6 30) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:05:52,454 INFO L273 TraceCheckUtils]: 38: Hoare triple {27278#(= (+ ULTIMATE.start_main_~j~6 30) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {27279#(= (+ ULTIMATE.start_main_~j~6 29) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:05:52,455 INFO L273 TraceCheckUtils]: 39: Hoare triple {27279#(= (+ ULTIMATE.start_main_~j~6 29) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {27280#(= (+ ULTIMATE.start_main_~j~6 28) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:05:52,455 INFO L273 TraceCheckUtils]: 40: Hoare triple {27280#(= (+ ULTIMATE.start_main_~j~6 28) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {27281#(= (+ ULTIMATE.start_main_~j~6 27) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:05:52,456 INFO L273 TraceCheckUtils]: 41: Hoare triple {27281#(= (+ ULTIMATE.start_main_~j~6 27) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {27282#(= (+ ULTIMATE.start_main_~j~6 26) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:05:52,457 INFO L273 TraceCheckUtils]: 42: Hoare triple {27282#(= (+ ULTIMATE.start_main_~j~6 26) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {27283#(= (+ ULTIMATE.start_main_~j~6 25) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:05:52,458 INFO L273 TraceCheckUtils]: 43: Hoare triple {27283#(= (+ ULTIMATE.start_main_~j~6 25) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {27284#(= (+ ULTIMATE.start_main_~j~6 24) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:05:52,459 INFO L273 TraceCheckUtils]: 44: Hoare triple {27284#(= (+ ULTIMATE.start_main_~j~6 24) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {27285#(= (+ ULTIMATE.start_main_~j~6 23) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:05:52,460 INFO L273 TraceCheckUtils]: 45: Hoare triple {27285#(= (+ ULTIMATE.start_main_~j~6 23) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {27286#(= (+ ULTIMATE.start_main_~j~6 22) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:05:52,461 INFO L273 TraceCheckUtils]: 46: Hoare triple {27286#(= (+ ULTIMATE.start_main_~j~6 22) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {27287#(= (+ ULTIMATE.start_main_~j~6 21) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:05:52,462 INFO L273 TraceCheckUtils]: 47: Hoare triple {27287#(= (+ ULTIMATE.start_main_~j~6 21) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {27288#(= (+ ULTIMATE.start_main_~j~6 20) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:05:52,463 INFO L273 TraceCheckUtils]: 48: Hoare triple {27288#(= (+ ULTIMATE.start_main_~j~6 20) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {27289#(= (+ ULTIMATE.start_main_~j~6 19) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:05:52,464 INFO L273 TraceCheckUtils]: 49: Hoare triple {27289#(= (+ ULTIMATE.start_main_~j~6 19) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {27290#(= (+ ULTIMATE.start_main_~j~6 18) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:05:52,465 INFO L273 TraceCheckUtils]: 50: Hoare triple {27290#(= (+ ULTIMATE.start_main_~j~6 18) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {27291#(= (+ ULTIMATE.start_main_~j~6 17) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:05:52,466 INFO L273 TraceCheckUtils]: 51: Hoare triple {27291#(= (+ ULTIMATE.start_main_~j~6 17) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {27292#(= (+ ULTIMATE.start_main_~j~6 16) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:05:52,467 INFO L273 TraceCheckUtils]: 52: Hoare triple {27292#(= (+ ULTIMATE.start_main_~j~6 16) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {27293#(= (+ ULTIMATE.start_main_~j~6 15) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:05:52,468 INFO L273 TraceCheckUtils]: 53: Hoare triple {27293#(= (+ ULTIMATE.start_main_~j~6 15) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {27294#(= (+ ULTIMATE.start_main_~j~6 14) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:05:52,469 INFO L273 TraceCheckUtils]: 54: Hoare triple {27294#(= (+ ULTIMATE.start_main_~j~6 14) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {27295#(= (+ ULTIMATE.start_main_~j~6 13) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:05:52,470 INFO L273 TraceCheckUtils]: 55: Hoare triple {27295#(= (+ ULTIMATE.start_main_~j~6 13) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {27296#(= (+ ULTIMATE.start_main_~j~6 12) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:05:52,471 INFO L273 TraceCheckUtils]: 56: Hoare triple {27296#(= (+ ULTIMATE.start_main_~j~6 12) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {27297#(= (+ ULTIMATE.start_main_~j~6 11) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:05:52,472 INFO L273 TraceCheckUtils]: 57: Hoare triple {27297#(= (+ ULTIMATE.start_main_~j~6 11) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {27298#(= (+ ULTIMATE.start_main_~j~6 10) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:05:52,472 INFO L273 TraceCheckUtils]: 58: Hoare triple {27298#(= (+ ULTIMATE.start_main_~j~6 10) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {27299#(= (+ ULTIMATE.start_main_~j~6 9) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:05:52,473 INFO L273 TraceCheckUtils]: 59: Hoare triple {27299#(= (+ ULTIMATE.start_main_~j~6 9) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {27300#(= (+ ULTIMATE.start_main_~j~6 8) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:05:52,474 INFO L273 TraceCheckUtils]: 60: Hoare triple {27300#(= (+ ULTIMATE.start_main_~j~6 8) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {27301#(= (+ ULTIMATE.start_main_~j~6 7) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:05:52,475 INFO L273 TraceCheckUtils]: 61: Hoare triple {27301#(= (+ ULTIMATE.start_main_~j~6 7) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {27302#(= (+ ULTIMATE.start_main_~j~6 6) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:05:52,476 INFO L273 TraceCheckUtils]: 62: Hoare triple {27302#(= (+ ULTIMATE.start_main_~j~6 6) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {27303#(= (+ ULTIMATE.start_main_~j~6 5) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:05:52,477 INFO L273 TraceCheckUtils]: 63: Hoare triple {27303#(= (+ ULTIMATE.start_main_~j~6 5) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {27304#(= (+ ULTIMATE.start_main_~j~6 4) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:05:52,478 INFO L273 TraceCheckUtils]: 64: Hoare triple {27304#(= (+ ULTIMATE.start_main_~j~6 4) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {27305#(= (+ ULTIMATE.start_main_~j~6 3) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:05:52,479 INFO L273 TraceCheckUtils]: 65: Hoare triple {27305#(= (+ ULTIMATE.start_main_~j~6 3) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {27306#(= (+ ULTIMATE.start_main_~j~6 2) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:05:52,480 INFO L273 TraceCheckUtils]: 66: Hoare triple {27306#(= (+ ULTIMATE.start_main_~j~6 2) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {27307#(= (+ ULTIMATE.start_main_~j~6 1) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:05:52,481 INFO L273 TraceCheckUtils]: 67: Hoare triple {27307#(= (+ ULTIMATE.start_main_~j~6 1) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {27308#(= (select ULTIMATE.start_main_~str1~6 0) (select ULTIMATE.start_main_~str2~6 (+ ULTIMATE.start_main_~MAX~6 (- 1))))} is VALID [2019-01-31 15:05:52,482 INFO L273 TraceCheckUtils]: 68: Hoare triple {27308#(= (select ULTIMATE.start_main_~str1~6 0) (select ULTIMATE.start_main_~str2~6 (+ ULTIMATE.start_main_~MAX~6 (- 1))))} assume !(main_~i~6 >= 0);main_~j~6 := main_~MAX~6 - 1;main_~i~6 := 0;assume !!(main_~i~6 < main_~MAX~6);__VERIFIER_assert_#in~cond := (if main_~str1~6[main_~i~6] == main_~str2~6[main_~j~6] then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond;assume __VERIFIER_assert_~cond == 0;assume !false; {27240#false} is VALID [2019-01-31 15:05:52,483 INFO L273 TraceCheckUtils]: 69: Hoare triple {27240#false} assume !false; {27240#false} is VALID [2019-01-31 15:05:52,490 INFO L134 CoverageAnalysis]: Checked inductivity of 1122 backedges. 0 proven. 1122 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-31 15:05:52,491 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-31 15:05:52,491 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-01-31 15:05:52,491 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-01-31 15:05:52,491 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-01-31 15:05:52,491 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-31 15:05:52,491 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 50 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 50 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-01-31 15:05:52,513 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-31 15:05:52,513 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2019-01-31 15:05:52,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-31 15:05:52,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-31 15:05:52,606 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-31 15:05:55,902 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2019-01-31 15:05:55,903 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-01-31 15:05:55,910 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-31 15:05:55,910 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:15, output treesize:14 [2019-01-31 15:05:55,913 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-01-31 15:05:55,913 WARN L398 uantifierElimination]: Input elimination task: ∃ [v_ULTIMATE.start_main_~str2~6_823]. (and (= (store v_ULTIMATE.start_main_~str2~6_823 32 (select ULTIMATE.start_main_~str1~6 0)) ULTIMATE.start_main_~str2~6) (<= 33 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 33)) [2019-01-31 15:05:55,913 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= (select ULTIMATE.start_main_~str2~6 32) (select ULTIMATE.start_main_~str1~6 0)) (<= 33 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 33)) [2019-01-31 15:05:56,011 INFO L273 TraceCheckUtils]: 0: Hoare triple {27239#true} havoc main_#res;havoc main_#t~nondet0, main_#t~nondet2, main_#t~post1, main_#t~post4, main_#t~post3, main_#t~post6, main_#t~post5, main_~MAX~6, main_~str1~6, main_~str2~6, main_~cont~6, main_~i~6, main_~j~6;main_~MAX~6 := (if main_#t~nondet0 % 4294967296 % 4294967296 <= 2147483647 then main_#t~nondet0 % 4294967296 % 4294967296 else main_#t~nondet0 % 4294967296 % 4294967296 - 4294967296);havoc main_#t~nondet0;havoc main_~str1~6;havoc main_~str2~6;havoc main_~cont~6;havoc main_~i~6;havoc main_~j~6;main_~cont~6 := 0;main_~i~6 := 0; {27241#(and (<= ULTIMATE.start_main_~i~6 0) (<= 0 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:05:56,012 INFO L273 TraceCheckUtils]: 1: Hoare triple {27241#(and (<= ULTIMATE.start_main_~i~6 0) (<= 0 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {27242#(and (<= ULTIMATE.start_main_~i~6 1) (<= 1 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:05:56,013 INFO L273 TraceCheckUtils]: 2: Hoare triple {27242#(and (<= ULTIMATE.start_main_~i~6 1) (<= 1 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {27243#(and (<= ULTIMATE.start_main_~i~6 2) (<= 2 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:05:56,014 INFO L273 TraceCheckUtils]: 3: Hoare triple {27243#(and (<= ULTIMATE.start_main_~i~6 2) (<= 2 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {27244#(and (<= 3 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 3))} is VALID [2019-01-31 15:05:56,015 INFO L273 TraceCheckUtils]: 4: Hoare triple {27244#(and (<= 3 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 3))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {27245#(and (<= ULTIMATE.start_main_~i~6 4) (<= 4 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:05:56,016 INFO L273 TraceCheckUtils]: 5: Hoare triple {27245#(and (<= ULTIMATE.start_main_~i~6 4) (<= 4 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {27246#(and (<= 5 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 5))} is VALID [2019-01-31 15:05:56,017 INFO L273 TraceCheckUtils]: 6: Hoare triple {27246#(and (<= 5 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 5))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {27247#(and (<= ULTIMATE.start_main_~i~6 6) (<= 6 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:05:56,018 INFO L273 TraceCheckUtils]: 7: Hoare triple {27247#(and (<= ULTIMATE.start_main_~i~6 6) (<= 6 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {27248#(and (<= 7 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 7))} is VALID [2019-01-31 15:05:56,019 INFO L273 TraceCheckUtils]: 8: Hoare triple {27248#(and (<= 7 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 7))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {27249#(and (<= ULTIMATE.start_main_~i~6 8) (<= 8 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:05:56,020 INFO L273 TraceCheckUtils]: 9: Hoare triple {27249#(and (<= ULTIMATE.start_main_~i~6 8) (<= 8 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {27250#(and (<= ULTIMATE.start_main_~i~6 9) (<= 9 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:05:56,021 INFO L273 TraceCheckUtils]: 10: Hoare triple {27250#(and (<= ULTIMATE.start_main_~i~6 9) (<= 9 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {27251#(and (<= ULTIMATE.start_main_~i~6 10) (<= 10 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:05:56,022 INFO L273 TraceCheckUtils]: 11: Hoare triple {27251#(and (<= ULTIMATE.start_main_~i~6 10) (<= 10 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {27252#(and (<= 11 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 11))} is VALID [2019-01-31 15:05:56,023 INFO L273 TraceCheckUtils]: 12: Hoare triple {27252#(and (<= 11 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 11))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {27253#(and (<= ULTIMATE.start_main_~i~6 12) (<= 12 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:05:56,024 INFO L273 TraceCheckUtils]: 13: Hoare triple {27253#(and (<= ULTIMATE.start_main_~i~6 12) (<= 12 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {27254#(and (<= ULTIMATE.start_main_~i~6 13) (<= 13 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:05:56,025 INFO L273 TraceCheckUtils]: 14: Hoare triple {27254#(and (<= ULTIMATE.start_main_~i~6 13) (<= 13 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {27255#(and (<= ULTIMATE.start_main_~i~6 14) (<= 14 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:05:56,026 INFO L273 TraceCheckUtils]: 15: Hoare triple {27255#(and (<= ULTIMATE.start_main_~i~6 14) (<= 14 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {27256#(and (<= 15 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 15))} is VALID [2019-01-31 15:05:56,027 INFO L273 TraceCheckUtils]: 16: Hoare triple {27256#(and (<= 15 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 15))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {27257#(and (<= 16 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 16))} is VALID [2019-01-31 15:05:56,028 INFO L273 TraceCheckUtils]: 17: Hoare triple {27257#(and (<= 16 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 16))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {27258#(and (<= ULTIMATE.start_main_~i~6 17) (<= 17 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:05:56,029 INFO L273 TraceCheckUtils]: 18: Hoare triple {27258#(and (<= ULTIMATE.start_main_~i~6 17) (<= 17 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {27259#(and (<= ULTIMATE.start_main_~i~6 18) (<= 18 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:05:56,029 INFO L273 TraceCheckUtils]: 19: Hoare triple {27259#(and (<= ULTIMATE.start_main_~i~6 18) (<= 18 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {27260#(and (<= ULTIMATE.start_main_~i~6 19) (<= 19 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:05:56,030 INFO L273 TraceCheckUtils]: 20: Hoare triple {27260#(and (<= ULTIMATE.start_main_~i~6 19) (<= 19 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {27261#(and (<= ULTIMATE.start_main_~i~6 20) (<= 20 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:05:56,031 INFO L273 TraceCheckUtils]: 21: Hoare triple {27261#(and (<= ULTIMATE.start_main_~i~6 20) (<= 20 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {27262#(and (<= ULTIMATE.start_main_~i~6 21) (<= 21 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:05:56,032 INFO L273 TraceCheckUtils]: 22: Hoare triple {27262#(and (<= ULTIMATE.start_main_~i~6 21) (<= 21 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {27263#(and (<= 22 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 22))} is VALID [2019-01-31 15:05:56,033 INFO L273 TraceCheckUtils]: 23: Hoare triple {27263#(and (<= 22 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 22))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {27264#(and (<= 23 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 23))} is VALID [2019-01-31 15:05:56,034 INFO L273 TraceCheckUtils]: 24: Hoare triple {27264#(and (<= 23 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 23))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {27265#(and (<= ULTIMATE.start_main_~i~6 24) (<= 24 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:05:56,035 INFO L273 TraceCheckUtils]: 25: Hoare triple {27265#(and (<= ULTIMATE.start_main_~i~6 24) (<= 24 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {27266#(and (<= ULTIMATE.start_main_~i~6 25) (<= 25 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:05:56,036 INFO L273 TraceCheckUtils]: 26: Hoare triple {27266#(and (<= ULTIMATE.start_main_~i~6 25) (<= 25 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {27267#(and (<= 26 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 26))} is VALID [2019-01-31 15:05:56,037 INFO L273 TraceCheckUtils]: 27: Hoare triple {27267#(and (<= 26 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 26))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {27268#(and (<= ULTIMATE.start_main_~i~6 27) (<= 27 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:05:56,038 INFO L273 TraceCheckUtils]: 28: Hoare triple {27268#(and (<= ULTIMATE.start_main_~i~6 27) (<= 27 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {27269#(and (<= ULTIMATE.start_main_~i~6 28) (<= 28 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:05:56,039 INFO L273 TraceCheckUtils]: 29: Hoare triple {27269#(and (<= ULTIMATE.start_main_~i~6 28) (<= 28 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {27270#(and (<= 29 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 29))} is VALID [2019-01-31 15:05:56,040 INFO L273 TraceCheckUtils]: 30: Hoare triple {27270#(and (<= 29 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 29))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {27271#(and (<= 30 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 30))} is VALID [2019-01-31 15:05:56,041 INFO L273 TraceCheckUtils]: 31: Hoare triple {27271#(and (<= 30 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 30))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {27272#(and (<= ULTIMATE.start_main_~i~6 31) (<= 31 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:05:56,042 INFO L273 TraceCheckUtils]: 32: Hoare triple {27272#(and (<= ULTIMATE.start_main_~i~6 31) (<= 31 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {27408#(and (<= 32 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 32))} is VALID [2019-01-31 15:05:56,042 INFO L273 TraceCheckUtils]: 33: Hoare triple {27408#(and (<= 32 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 32))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {27412#(and (<= 33 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~i~6 33))} is VALID [2019-01-31 15:05:56,043 INFO L273 TraceCheckUtils]: 34: Hoare triple {27412#(and (<= 33 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~i~6 33))} assume !(main_~i~6 < main_~MAX~6);main_~str1~6 := main_~str1~6[main_~MAX~6 - 1 := 0];main_~j~6 := 0;main_~i~6 := main_~MAX~6 - 1; {27416#(and (= ULTIMATE.start_main_~j~6 0) (<= 33 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 33))} is VALID [2019-01-31 15:05:56,044 INFO L273 TraceCheckUtils]: 35: Hoare triple {27416#(and (= ULTIMATE.start_main_~j~6 0) (<= 33 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 33))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {27420#(and (= ULTIMATE.start_main_~j~6 1) (<= 33 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 33))} is VALID [2019-01-31 15:05:56,045 INFO L273 TraceCheckUtils]: 36: Hoare triple {27420#(and (= ULTIMATE.start_main_~j~6 1) (<= 33 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 33))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {27424#(and (<= 33 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 33) (= ULTIMATE.start_main_~j~6 2))} is VALID [2019-01-31 15:05:56,046 INFO L273 TraceCheckUtils]: 37: Hoare triple {27424#(and (<= 33 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 33) (= ULTIMATE.start_main_~j~6 2))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {27428#(and (<= 33 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 33) (= ULTIMATE.start_main_~j~6 3))} is VALID [2019-01-31 15:05:56,047 INFO L273 TraceCheckUtils]: 38: Hoare triple {27428#(and (<= 33 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 33) (= ULTIMATE.start_main_~j~6 3))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {27432#(and (= ULTIMATE.start_main_~j~6 4) (<= 33 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 33))} is VALID [2019-01-31 15:05:56,047 INFO L273 TraceCheckUtils]: 39: Hoare triple {27432#(and (= ULTIMATE.start_main_~j~6 4) (<= 33 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 33))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {27436#(and (= ULTIMATE.start_main_~j~6 5) (<= 33 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 33))} is VALID [2019-01-31 15:05:56,048 INFO L273 TraceCheckUtils]: 40: Hoare triple {27436#(and (= ULTIMATE.start_main_~j~6 5) (<= 33 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 33))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {27440#(and (<= 33 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 33) (= ULTIMATE.start_main_~j~6 6))} is VALID [2019-01-31 15:05:56,049 INFO L273 TraceCheckUtils]: 41: Hoare triple {27440#(and (<= 33 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 33) (= ULTIMATE.start_main_~j~6 6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {27444#(and (= ULTIMATE.start_main_~j~6 7) (<= 33 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 33))} is VALID [2019-01-31 15:05:56,050 INFO L273 TraceCheckUtils]: 42: Hoare triple {27444#(and (= ULTIMATE.start_main_~j~6 7) (<= 33 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 33))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {27448#(and (= ULTIMATE.start_main_~j~6 8) (<= 33 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 33))} is VALID [2019-01-31 15:05:56,051 INFO L273 TraceCheckUtils]: 43: Hoare triple {27448#(and (= ULTIMATE.start_main_~j~6 8) (<= 33 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 33))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {27452#(and (= ULTIMATE.start_main_~j~6 9) (<= 33 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 33))} is VALID [2019-01-31 15:05:56,052 INFO L273 TraceCheckUtils]: 44: Hoare triple {27452#(and (= ULTIMATE.start_main_~j~6 9) (<= 33 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 33))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {27456#(and (= ULTIMATE.start_main_~j~6 10) (<= 33 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 33))} is VALID [2019-01-31 15:05:56,053 INFO L273 TraceCheckUtils]: 45: Hoare triple {27456#(and (= ULTIMATE.start_main_~j~6 10) (<= 33 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 33))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {27460#(and (<= 33 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 33) (= ULTIMATE.start_main_~j~6 11))} is VALID [2019-01-31 15:05:56,053 INFO L273 TraceCheckUtils]: 46: Hoare triple {27460#(and (<= 33 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 33) (= ULTIMATE.start_main_~j~6 11))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {27464#(and (= ULTIMATE.start_main_~j~6 12) (<= 33 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 33))} is VALID [2019-01-31 15:05:56,054 INFO L273 TraceCheckUtils]: 47: Hoare triple {27464#(and (= ULTIMATE.start_main_~j~6 12) (<= 33 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 33))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {27468#(and (= ULTIMATE.start_main_~j~6 13) (<= 33 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 33))} is VALID [2019-01-31 15:05:56,055 INFO L273 TraceCheckUtils]: 48: Hoare triple {27468#(and (= ULTIMATE.start_main_~j~6 13) (<= 33 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 33))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {27472#(and (= ULTIMATE.start_main_~j~6 14) (<= 33 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 33))} is VALID [2019-01-31 15:05:56,056 INFO L273 TraceCheckUtils]: 49: Hoare triple {27472#(and (= ULTIMATE.start_main_~j~6 14) (<= 33 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 33))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {27476#(and (<= 33 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 33) (= ULTIMATE.start_main_~j~6 15))} is VALID [2019-01-31 15:05:56,057 INFO L273 TraceCheckUtils]: 50: Hoare triple {27476#(and (<= 33 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 33) (= ULTIMATE.start_main_~j~6 15))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {27480#(and (= ULTIMATE.start_main_~j~6 16) (<= 33 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 33))} is VALID [2019-01-31 15:05:56,058 INFO L273 TraceCheckUtils]: 51: Hoare triple {27480#(and (= ULTIMATE.start_main_~j~6 16) (<= 33 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 33))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {27484#(and (= ULTIMATE.start_main_~j~6 17) (<= 33 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 33))} is VALID [2019-01-31 15:05:56,059 INFO L273 TraceCheckUtils]: 52: Hoare triple {27484#(and (= ULTIMATE.start_main_~j~6 17) (<= 33 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 33))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {27488#(and (= ULTIMATE.start_main_~j~6 18) (<= 33 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 33))} is VALID [2019-01-31 15:05:56,059 INFO L273 TraceCheckUtils]: 53: Hoare triple {27488#(and (= ULTIMATE.start_main_~j~6 18) (<= 33 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 33))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {27492#(and (= ULTIMATE.start_main_~j~6 19) (<= 33 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 33))} is VALID [2019-01-31 15:05:56,060 INFO L273 TraceCheckUtils]: 54: Hoare triple {27492#(and (= ULTIMATE.start_main_~j~6 19) (<= 33 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 33))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {27496#(and (= ULTIMATE.start_main_~j~6 20) (<= 33 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 33))} is VALID [2019-01-31 15:05:56,061 INFO L273 TraceCheckUtils]: 55: Hoare triple {27496#(and (= ULTIMATE.start_main_~j~6 20) (<= 33 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 33))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {27500#(and (= ULTIMATE.start_main_~j~6 21) (<= 33 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 33))} is VALID [2019-01-31 15:05:56,062 INFO L273 TraceCheckUtils]: 56: Hoare triple {27500#(and (= ULTIMATE.start_main_~j~6 21) (<= 33 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 33))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {27504#(and (<= 33 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 33) (= ULTIMATE.start_main_~j~6 22))} is VALID [2019-01-31 15:05:56,062 INFO L273 TraceCheckUtils]: 57: Hoare triple {27504#(and (<= 33 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 33) (= ULTIMATE.start_main_~j~6 22))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {27508#(and (<= 33 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 33) (= ULTIMATE.start_main_~j~6 23))} is VALID [2019-01-31 15:05:56,063 INFO L273 TraceCheckUtils]: 58: Hoare triple {27508#(and (<= 33 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 33) (= ULTIMATE.start_main_~j~6 23))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {27512#(and (= ULTIMATE.start_main_~j~6 24) (<= 33 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 33))} is VALID [2019-01-31 15:05:56,064 INFO L273 TraceCheckUtils]: 59: Hoare triple {27512#(and (= ULTIMATE.start_main_~j~6 24) (<= 33 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 33))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {27516#(and (= ULTIMATE.start_main_~j~6 25) (<= 33 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 33))} is VALID [2019-01-31 15:05:56,065 INFO L273 TraceCheckUtils]: 60: Hoare triple {27516#(and (= ULTIMATE.start_main_~j~6 25) (<= 33 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 33))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {27520#(and (= ULTIMATE.start_main_~j~6 26) (<= 33 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 33))} is VALID [2019-01-31 15:05:56,066 INFO L273 TraceCheckUtils]: 61: Hoare triple {27520#(and (= ULTIMATE.start_main_~j~6 26) (<= 33 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 33))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {27524#(and (= ULTIMATE.start_main_~j~6 27) (<= 33 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 33))} is VALID [2019-01-31 15:05:56,067 INFO L273 TraceCheckUtils]: 62: Hoare triple {27524#(and (= ULTIMATE.start_main_~j~6 27) (<= 33 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 33))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {27528#(and (<= 33 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 33) (= ULTIMATE.start_main_~j~6 28))} is VALID [2019-01-31 15:05:56,067 INFO L273 TraceCheckUtils]: 63: Hoare triple {27528#(and (<= 33 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 33) (= ULTIMATE.start_main_~j~6 28))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {27532#(and (<= 33 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 33) (= ULTIMATE.start_main_~j~6 29))} is VALID [2019-01-31 15:05:56,068 INFO L273 TraceCheckUtils]: 64: Hoare triple {27532#(and (<= 33 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 33) (= ULTIMATE.start_main_~j~6 29))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {27536#(and (= ULTIMATE.start_main_~j~6 30) (<= 33 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 33))} is VALID [2019-01-31 15:05:56,069 INFO L273 TraceCheckUtils]: 65: Hoare triple {27536#(and (= ULTIMATE.start_main_~j~6 30) (<= 33 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 33))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {27540#(and (= ULTIMATE.start_main_~j~6 31) (<= 33 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 33))} is VALID [2019-01-31 15:05:56,070 INFO L273 TraceCheckUtils]: 66: Hoare triple {27540#(and (= ULTIMATE.start_main_~j~6 31) (<= 33 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 33))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {27544#(and (= ULTIMATE.start_main_~j~6 32) (<= 33 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 33))} is VALID [2019-01-31 15:05:56,071 INFO L273 TraceCheckUtils]: 67: Hoare triple {27544#(and (= ULTIMATE.start_main_~j~6 32) (<= 33 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 33))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {27548#(and (= (select ULTIMATE.start_main_~str2~6 32) (select ULTIMATE.start_main_~str1~6 0)) (<= 33 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 33))} is VALID [2019-01-31 15:05:56,072 INFO L273 TraceCheckUtils]: 68: Hoare triple {27548#(and (= (select ULTIMATE.start_main_~str2~6 32) (select ULTIMATE.start_main_~str1~6 0)) (<= 33 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 33))} assume !(main_~i~6 >= 0);main_~j~6 := main_~MAX~6 - 1;main_~i~6 := 0;assume !!(main_~i~6 < main_~MAX~6);__VERIFIER_assert_#in~cond := (if main_~str1~6[main_~i~6] == main_~str2~6[main_~j~6] then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond;assume __VERIFIER_assert_~cond == 0;assume !false; {27240#false} is VALID [2019-01-31 15:05:56,072 INFO L273 TraceCheckUtils]: 69: Hoare triple {27240#false} assume !false; {27240#false} is VALID [2019-01-31 15:05:56,082 INFO L134 CoverageAnalysis]: Checked inductivity of 1122 backedges. 0 proven. 1122 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-31 15:05:56,082 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2019-01-31 15:05:56,109 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 5 [2019-01-31 15:05:56,115 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-01-31 15:05:56,118 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-31 15:05:56,118 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:14, output treesize:5 [2019-01-31 15:05:56,120 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-01-31 15:05:56,121 WARN L398 uantifierElimination]: Input elimination task: ∀ [ULTIMATE.start_main_~str2~6, ULTIMATE.start_main_~str1~6]. (let ((.cse0 (select ULTIMATE.start_main_~str1~6 0))) (= .cse0 (select (store ULTIMATE.start_main_~str2~6 ULTIMATE.start_main_~j~6 .cse0) (+ ULTIMATE.start_main_~MAX~6 (- 1))))) [2019-01-31 15:05:56,121 WARN L399 uantifierElimination]: ElimStorePlain result: ∀ []. (= (+ ULTIMATE.start_main_~j~6 1) ULTIMATE.start_main_~MAX~6) [2019-01-31 15:05:57,325 INFO L273 TraceCheckUtils]: 69: Hoare triple {27240#false} assume !false; {27240#false} is VALID [2019-01-31 15:05:57,326 INFO L273 TraceCheckUtils]: 68: Hoare triple {27308#(= (select ULTIMATE.start_main_~str1~6 0) (select ULTIMATE.start_main_~str2~6 (+ ULTIMATE.start_main_~MAX~6 (- 1))))} assume !(main_~i~6 >= 0);main_~j~6 := main_~MAX~6 - 1;main_~i~6 := 0;assume !!(main_~i~6 < main_~MAX~6);__VERIFIER_assert_#in~cond := (if main_~str1~6[main_~i~6] == main_~str2~6[main_~j~6] then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond;assume __VERIFIER_assert_~cond == 0;assume !false; {27240#false} is VALID [2019-01-31 15:05:57,327 INFO L273 TraceCheckUtils]: 67: Hoare triple {27307#(= (+ ULTIMATE.start_main_~j~6 1) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {27308#(= (select ULTIMATE.start_main_~str1~6 0) (select ULTIMATE.start_main_~str2~6 (+ ULTIMATE.start_main_~MAX~6 (- 1))))} is VALID [2019-01-31 15:05:57,328 INFO L273 TraceCheckUtils]: 66: Hoare triple {27306#(= (+ ULTIMATE.start_main_~j~6 2) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {27307#(= (+ ULTIMATE.start_main_~j~6 1) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:05:57,329 INFO L273 TraceCheckUtils]: 65: Hoare triple {27305#(= (+ ULTIMATE.start_main_~j~6 3) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {27306#(= (+ ULTIMATE.start_main_~j~6 2) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:05:57,330 INFO L273 TraceCheckUtils]: 64: Hoare triple {27304#(= (+ ULTIMATE.start_main_~j~6 4) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {27305#(= (+ ULTIMATE.start_main_~j~6 3) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:05:57,331 INFO L273 TraceCheckUtils]: 63: Hoare triple {27303#(= (+ ULTIMATE.start_main_~j~6 5) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {27304#(= (+ ULTIMATE.start_main_~j~6 4) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:05:57,332 INFO L273 TraceCheckUtils]: 62: Hoare triple {27302#(= (+ ULTIMATE.start_main_~j~6 6) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {27303#(= (+ ULTIMATE.start_main_~j~6 5) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:05:57,333 INFO L273 TraceCheckUtils]: 61: Hoare triple {27301#(= (+ ULTIMATE.start_main_~j~6 7) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {27302#(= (+ ULTIMATE.start_main_~j~6 6) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:05:57,334 INFO L273 TraceCheckUtils]: 60: Hoare triple {27300#(= (+ ULTIMATE.start_main_~j~6 8) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {27301#(= (+ ULTIMATE.start_main_~j~6 7) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:05:57,335 INFO L273 TraceCheckUtils]: 59: Hoare triple {27299#(= (+ ULTIMATE.start_main_~j~6 9) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {27300#(= (+ ULTIMATE.start_main_~j~6 8) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:05:57,336 INFO L273 TraceCheckUtils]: 58: Hoare triple {27298#(= (+ ULTIMATE.start_main_~j~6 10) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {27299#(= (+ ULTIMATE.start_main_~j~6 9) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:05:57,337 INFO L273 TraceCheckUtils]: 57: Hoare triple {27297#(= (+ ULTIMATE.start_main_~j~6 11) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {27298#(= (+ ULTIMATE.start_main_~j~6 10) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:05:57,338 INFO L273 TraceCheckUtils]: 56: Hoare triple {27296#(= (+ ULTIMATE.start_main_~j~6 12) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {27297#(= (+ ULTIMATE.start_main_~j~6 11) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:05:57,339 INFO L273 TraceCheckUtils]: 55: Hoare triple {27295#(= (+ ULTIMATE.start_main_~j~6 13) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {27296#(= (+ ULTIMATE.start_main_~j~6 12) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:05:57,340 INFO L273 TraceCheckUtils]: 54: Hoare triple {27294#(= (+ ULTIMATE.start_main_~j~6 14) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {27295#(= (+ ULTIMATE.start_main_~j~6 13) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:05:57,341 INFO L273 TraceCheckUtils]: 53: Hoare triple {27293#(= (+ ULTIMATE.start_main_~j~6 15) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {27294#(= (+ ULTIMATE.start_main_~j~6 14) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:05:57,342 INFO L273 TraceCheckUtils]: 52: Hoare triple {27292#(= (+ ULTIMATE.start_main_~j~6 16) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {27293#(= (+ ULTIMATE.start_main_~j~6 15) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:05:57,343 INFO L273 TraceCheckUtils]: 51: Hoare triple {27291#(= (+ ULTIMATE.start_main_~j~6 17) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {27292#(= (+ ULTIMATE.start_main_~j~6 16) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:05:57,344 INFO L273 TraceCheckUtils]: 50: Hoare triple {27290#(= (+ ULTIMATE.start_main_~j~6 18) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {27291#(= (+ ULTIMATE.start_main_~j~6 17) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:05:57,345 INFO L273 TraceCheckUtils]: 49: Hoare triple {27289#(= (+ ULTIMATE.start_main_~j~6 19) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {27290#(= (+ ULTIMATE.start_main_~j~6 18) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:05:57,346 INFO L273 TraceCheckUtils]: 48: Hoare triple {27288#(= (+ ULTIMATE.start_main_~j~6 20) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {27289#(= (+ ULTIMATE.start_main_~j~6 19) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:05:57,347 INFO L273 TraceCheckUtils]: 47: Hoare triple {27287#(= (+ ULTIMATE.start_main_~j~6 21) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {27288#(= (+ ULTIMATE.start_main_~j~6 20) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:05:57,348 INFO L273 TraceCheckUtils]: 46: Hoare triple {27286#(= (+ ULTIMATE.start_main_~j~6 22) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {27287#(= (+ ULTIMATE.start_main_~j~6 21) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:05:57,349 INFO L273 TraceCheckUtils]: 45: Hoare triple {27285#(= (+ ULTIMATE.start_main_~j~6 23) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {27286#(= (+ ULTIMATE.start_main_~j~6 22) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:05:57,350 INFO L273 TraceCheckUtils]: 44: Hoare triple {27284#(= (+ ULTIMATE.start_main_~j~6 24) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {27285#(= (+ ULTIMATE.start_main_~j~6 23) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:05:57,365 INFO L273 TraceCheckUtils]: 43: Hoare triple {27283#(= (+ ULTIMATE.start_main_~j~6 25) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {27284#(= (+ ULTIMATE.start_main_~j~6 24) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:05:57,366 INFO L273 TraceCheckUtils]: 42: Hoare triple {27282#(= (+ ULTIMATE.start_main_~j~6 26) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {27283#(= (+ ULTIMATE.start_main_~j~6 25) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:05:57,367 INFO L273 TraceCheckUtils]: 41: Hoare triple {27281#(= (+ ULTIMATE.start_main_~j~6 27) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {27282#(= (+ ULTIMATE.start_main_~j~6 26) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:05:57,367 INFO L273 TraceCheckUtils]: 40: Hoare triple {27280#(= (+ ULTIMATE.start_main_~j~6 28) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {27281#(= (+ ULTIMATE.start_main_~j~6 27) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:05:57,368 INFO L273 TraceCheckUtils]: 39: Hoare triple {27279#(= (+ ULTIMATE.start_main_~j~6 29) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {27280#(= (+ ULTIMATE.start_main_~j~6 28) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:05:57,369 INFO L273 TraceCheckUtils]: 38: Hoare triple {27278#(= (+ ULTIMATE.start_main_~j~6 30) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {27279#(= (+ ULTIMATE.start_main_~j~6 29) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:05:57,369 INFO L273 TraceCheckUtils]: 37: Hoare triple {27277#(= (+ ULTIMATE.start_main_~j~6 31) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {27278#(= (+ ULTIMATE.start_main_~j~6 30) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:05:57,370 INFO L273 TraceCheckUtils]: 36: Hoare triple {27276#(= (+ ULTIMATE.start_main_~j~6 32) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {27277#(= (+ ULTIMATE.start_main_~j~6 31) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:05:57,371 INFO L273 TraceCheckUtils]: 35: Hoare triple {27275#(= (+ ULTIMATE.start_main_~j~6 33) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {27276#(= (+ ULTIMATE.start_main_~j~6 32) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:05:57,372 INFO L273 TraceCheckUtils]: 34: Hoare triple {27274#(or (<= (+ ULTIMATE.start_main_~i~6 1) ULTIMATE.start_main_~MAX~6) (= 33 ULTIMATE.start_main_~MAX~6))} assume !(main_~i~6 < main_~MAX~6);main_~str1~6 := main_~str1~6[main_~MAX~6 - 1 := 0];main_~j~6 := 0;main_~i~6 := main_~MAX~6 - 1; {27275#(= (+ ULTIMATE.start_main_~j~6 33) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:05:57,373 INFO L273 TraceCheckUtils]: 33: Hoare triple {27408#(and (<= 32 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 32))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {27274#(or (<= (+ ULTIMATE.start_main_~i~6 1) ULTIMATE.start_main_~MAX~6) (= 33 ULTIMATE.start_main_~MAX~6))} is VALID [2019-01-31 15:05:57,374 INFO L273 TraceCheckUtils]: 32: Hoare triple {27272#(and (<= ULTIMATE.start_main_~i~6 31) (<= 31 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {27408#(and (<= 32 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 32))} is VALID [2019-01-31 15:05:57,375 INFO L273 TraceCheckUtils]: 31: Hoare triple {27271#(and (<= 30 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 30))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {27272#(and (<= ULTIMATE.start_main_~i~6 31) (<= 31 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:05:57,376 INFO L273 TraceCheckUtils]: 30: Hoare triple {27270#(and (<= 29 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 29))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {27271#(and (<= 30 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 30))} is VALID [2019-01-31 15:05:57,377 INFO L273 TraceCheckUtils]: 29: Hoare triple {27269#(and (<= ULTIMATE.start_main_~i~6 28) (<= 28 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {27270#(and (<= 29 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 29))} is VALID [2019-01-31 15:05:57,378 INFO L273 TraceCheckUtils]: 28: Hoare triple {27268#(and (<= ULTIMATE.start_main_~i~6 27) (<= 27 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {27269#(and (<= ULTIMATE.start_main_~i~6 28) (<= 28 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:05:57,379 INFO L273 TraceCheckUtils]: 27: Hoare triple {27267#(and (<= 26 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 26))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {27268#(and (<= ULTIMATE.start_main_~i~6 27) (<= 27 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:05:57,380 INFO L273 TraceCheckUtils]: 26: Hoare triple {27266#(and (<= ULTIMATE.start_main_~i~6 25) (<= 25 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {27267#(and (<= 26 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 26))} is VALID [2019-01-31 15:05:57,381 INFO L273 TraceCheckUtils]: 25: Hoare triple {27265#(and (<= ULTIMATE.start_main_~i~6 24) (<= 24 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {27266#(and (<= ULTIMATE.start_main_~i~6 25) (<= 25 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:05:57,382 INFO L273 TraceCheckUtils]: 24: Hoare triple {27264#(and (<= 23 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 23))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {27265#(and (<= ULTIMATE.start_main_~i~6 24) (<= 24 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:05:57,383 INFO L273 TraceCheckUtils]: 23: Hoare triple {27263#(and (<= 22 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 22))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {27264#(and (<= 23 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 23))} is VALID [2019-01-31 15:05:57,384 INFO L273 TraceCheckUtils]: 22: Hoare triple {27262#(and (<= ULTIMATE.start_main_~i~6 21) (<= 21 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {27263#(and (<= 22 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 22))} is VALID [2019-01-31 15:05:57,385 INFO L273 TraceCheckUtils]: 21: Hoare triple {27261#(and (<= ULTIMATE.start_main_~i~6 20) (<= 20 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {27262#(and (<= ULTIMATE.start_main_~i~6 21) (<= 21 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:05:57,386 INFO L273 TraceCheckUtils]: 20: Hoare triple {27260#(and (<= ULTIMATE.start_main_~i~6 19) (<= 19 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {27261#(and (<= ULTIMATE.start_main_~i~6 20) (<= 20 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:05:57,387 INFO L273 TraceCheckUtils]: 19: Hoare triple {27259#(and (<= ULTIMATE.start_main_~i~6 18) (<= 18 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {27260#(and (<= ULTIMATE.start_main_~i~6 19) (<= 19 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:05:57,388 INFO L273 TraceCheckUtils]: 18: Hoare triple {27258#(and (<= ULTIMATE.start_main_~i~6 17) (<= 17 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {27259#(and (<= ULTIMATE.start_main_~i~6 18) (<= 18 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:05:57,389 INFO L273 TraceCheckUtils]: 17: Hoare triple {27257#(and (<= 16 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 16))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {27258#(and (<= ULTIMATE.start_main_~i~6 17) (<= 17 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:05:57,390 INFO L273 TraceCheckUtils]: 16: Hoare triple {27256#(and (<= 15 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 15))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {27257#(and (<= 16 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 16))} is VALID [2019-01-31 15:05:57,391 INFO L273 TraceCheckUtils]: 15: Hoare triple {27255#(and (<= ULTIMATE.start_main_~i~6 14) (<= 14 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {27256#(and (<= 15 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 15))} is VALID [2019-01-31 15:05:57,392 INFO L273 TraceCheckUtils]: 14: Hoare triple {27254#(and (<= ULTIMATE.start_main_~i~6 13) (<= 13 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {27255#(and (<= ULTIMATE.start_main_~i~6 14) (<= 14 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:05:57,392 INFO L273 TraceCheckUtils]: 13: Hoare triple {27253#(and (<= ULTIMATE.start_main_~i~6 12) (<= 12 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {27254#(and (<= ULTIMATE.start_main_~i~6 13) (<= 13 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:05:57,393 INFO L273 TraceCheckUtils]: 12: Hoare triple {27252#(and (<= 11 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 11))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {27253#(and (<= ULTIMATE.start_main_~i~6 12) (<= 12 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:05:57,394 INFO L273 TraceCheckUtils]: 11: Hoare triple {27251#(and (<= ULTIMATE.start_main_~i~6 10) (<= 10 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {27252#(and (<= 11 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 11))} is VALID [2019-01-31 15:05:57,395 INFO L273 TraceCheckUtils]: 10: Hoare triple {27250#(and (<= ULTIMATE.start_main_~i~6 9) (<= 9 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {27251#(and (<= ULTIMATE.start_main_~i~6 10) (<= 10 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:05:57,396 INFO L273 TraceCheckUtils]: 9: Hoare triple {27249#(and (<= ULTIMATE.start_main_~i~6 8) (<= 8 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {27250#(and (<= ULTIMATE.start_main_~i~6 9) (<= 9 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:05:57,397 INFO L273 TraceCheckUtils]: 8: Hoare triple {27248#(and (<= 7 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 7))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {27249#(and (<= ULTIMATE.start_main_~i~6 8) (<= 8 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:05:57,398 INFO L273 TraceCheckUtils]: 7: Hoare triple {27247#(and (<= ULTIMATE.start_main_~i~6 6) (<= 6 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {27248#(and (<= 7 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 7))} is VALID [2019-01-31 15:05:57,399 INFO L273 TraceCheckUtils]: 6: Hoare triple {27246#(and (<= 5 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 5))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {27247#(and (<= ULTIMATE.start_main_~i~6 6) (<= 6 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:05:57,400 INFO L273 TraceCheckUtils]: 5: Hoare triple {27245#(and (<= ULTIMATE.start_main_~i~6 4) (<= 4 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {27246#(and (<= 5 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 5))} is VALID [2019-01-31 15:05:57,401 INFO L273 TraceCheckUtils]: 4: Hoare triple {27244#(and (<= 3 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 3))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {27245#(and (<= ULTIMATE.start_main_~i~6 4) (<= 4 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:05:57,402 INFO L273 TraceCheckUtils]: 3: Hoare triple {27243#(and (<= ULTIMATE.start_main_~i~6 2) (<= 2 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {27244#(and (<= 3 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 3))} is VALID [2019-01-31 15:05:57,403 INFO L273 TraceCheckUtils]: 2: Hoare triple {27242#(and (<= ULTIMATE.start_main_~i~6 1) (<= 1 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {27243#(and (<= ULTIMATE.start_main_~i~6 2) (<= 2 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:05:57,404 INFO L273 TraceCheckUtils]: 1: Hoare triple {27241#(and (<= ULTIMATE.start_main_~i~6 0) (<= 0 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {27242#(and (<= ULTIMATE.start_main_~i~6 1) (<= 1 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:05:57,404 INFO L273 TraceCheckUtils]: 0: Hoare triple {27239#true} havoc main_#res;havoc main_#t~nondet0, main_#t~nondet2, main_#t~post1, main_#t~post4, main_#t~post3, main_#t~post6, main_#t~post5, main_~MAX~6, main_~str1~6, main_~str2~6, main_~cont~6, main_~i~6, main_~j~6;main_~MAX~6 := (if main_#t~nondet0 % 4294967296 % 4294967296 <= 2147483647 then main_#t~nondet0 % 4294967296 % 4294967296 else main_#t~nondet0 % 4294967296 % 4294967296 - 4294967296);havoc main_#t~nondet0;havoc main_~str1~6;havoc main_~str2~6;havoc main_~cont~6;havoc main_~i~6;havoc main_~j~6;main_~cont~6 := 0;main_~i~6 := 0; {27241#(and (<= ULTIMATE.start_main_~i~6 0) (<= 0 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:05:57,411 INFO L134 CoverageAnalysis]: Checked inductivity of 1122 backedges. 0 proven. 1122 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-31 15:05:57,431 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-01-31 15:05:57,431 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [69, 69, 69] total 105 [2019-01-31 15:05:57,431 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-01-31 15:05:57,431 INFO L78 Accepts]: Start accepts. Automaton has 106 states. Word has length 70 [2019-01-31 15:05:57,432 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-01-31 15:05:57,432 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 106 states. [2019-01-31 15:05:57,533 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 107 edges. 107 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-01-31 15:05:57,533 INFO L459 AbstractCegarLoop]: Interpolant automaton has 106 states [2019-01-31 15:05:57,533 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 106 interpolants. [2019-01-31 15:05:57,534 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=313, Invalid=10817, Unknown=0, NotChecked=0, Total=11130 [2019-01-31 15:05:57,534 INFO L87 Difference]: Start difference. First operand 71 states and 72 transitions. Second operand 106 states. [2019-01-31 15:06:21,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 15:06:21,042 INFO L93 Difference]: Finished difference Result 108 states and 110 transitions. [2019-01-31 15:06:21,042 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2019-01-31 15:06:21,042 INFO L78 Accepts]: Start accepts. Automaton has 106 states. Word has length 70 [2019-01-31 15:06:21,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-31 15:06:21,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 106 states. [2019-01-31 15:06:21,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 78 transitions. [2019-01-31 15:06:21,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 106 states. [2019-01-31 15:06:21,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 78 transitions. [2019-01-31 15:06:21,044 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 73 states and 78 transitions. [2019-01-31 15:06:21,127 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 78 edges. 78 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-01-31 15:06:21,128 INFO L225 Difference]: With dead ends: 108 [2019-01-31 15:06:21,128 INFO L226 Difference]: Without dead ends: 72 [2019-01-31 15:06:21,129 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 243 GetRequests, 78 SyntacticMatches, 25 SemanticMatches, 140 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3274 ImplicationChecksByTransitivity, 9.4s TimeCoverageRelationStatistics Valid=662, Invalid=19360, Unknown=0, NotChecked=0, Total=20022 [2019-01-31 15:06:21,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2019-01-31 15:06:22,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 72. [2019-01-31 15:06:22,935 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-01-31 15:06:22,935 INFO L82 GeneralOperation]: Start isEquivalent. First operand 72 states. Second operand 72 states. [2019-01-31 15:06:22,935 INFO L74 IsIncluded]: Start isIncluded. First operand 72 states. Second operand 72 states. [2019-01-31 15:06:22,935 INFO L87 Difference]: Start difference. First operand 72 states. Second operand 72 states. [2019-01-31 15:06:22,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 15:06:22,936 INFO L93 Difference]: Finished difference Result 72 states and 73 transitions. [2019-01-31 15:06:22,936 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 73 transitions. [2019-01-31 15:06:22,937 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-31 15:06:22,937 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-01-31 15:06:22,937 INFO L74 IsIncluded]: Start isIncluded. First operand 72 states. Second operand 72 states. [2019-01-31 15:06:22,937 INFO L87 Difference]: Start difference. First operand 72 states. Second operand 72 states. [2019-01-31 15:06:22,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 15:06:22,938 INFO L93 Difference]: Finished difference Result 72 states and 73 transitions. [2019-01-31 15:06:22,938 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 73 transitions. [2019-01-31 15:06:22,938 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-31 15:06:22,938 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-01-31 15:06:22,938 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-01-31 15:06:22,938 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-01-31 15:06:22,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2019-01-31 15:06:22,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 73 transitions. [2019-01-31 15:06:22,939 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 73 transitions. Word has length 70 [2019-01-31 15:06:22,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-31 15:06:22,940 INFO L480 AbstractCegarLoop]: Abstraction has 72 states and 73 transitions. [2019-01-31 15:06:22,940 INFO L481 AbstractCegarLoop]: Interpolant automaton has 106 states. [2019-01-31 15:06:22,940 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 73 transitions. [2019-01-31 15:06:22,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2019-01-31 15:06:22,940 INFO L394 BasicCegarLoop]: Found error trace [2019-01-31 15:06:22,940 INFO L402 BasicCegarLoop]: trace histogram [34, 33, 1, 1, 1, 1] [2019-01-31 15:06:22,941 INFO L423 AbstractCegarLoop]: === Iteration 52 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2019-01-31 15:06:22,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-31 15:06:22,941 INFO L82 PathProgramCache]: Analyzing trace with hash -227129428, now seen corresponding path program 50 times [2019-01-31 15:06:22,941 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-01-31 15:06:22,941 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-31 15:06:22,942 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-31 15:06:22,942 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-31 15:06:22,942 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-01-31 15:06:22,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-31 15:06:23,696 INFO L273 TraceCheckUtils]: 0: Hoare triple {28332#true} havoc main_#res;havoc main_#t~nondet0, main_#t~nondet2, main_#t~post1, main_#t~post4, main_#t~post3, main_#t~post6, main_#t~post5, main_~MAX~6, main_~str1~6, main_~str2~6, main_~cont~6, main_~i~6, main_~j~6;main_~MAX~6 := (if main_#t~nondet0 % 4294967296 % 4294967296 <= 2147483647 then main_#t~nondet0 % 4294967296 % 4294967296 else main_#t~nondet0 % 4294967296 % 4294967296 - 4294967296);havoc main_#t~nondet0;havoc main_~str1~6;havoc main_~str2~6;havoc main_~cont~6;havoc main_~i~6;havoc main_~j~6;main_~cont~6 := 0;main_~i~6 := 0; {28334#(<= 0 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:06:23,697 INFO L273 TraceCheckUtils]: 1: Hoare triple {28334#(<= 0 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {28335#(<= 1 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:06:23,698 INFO L273 TraceCheckUtils]: 2: Hoare triple {28335#(<= 1 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {28336#(<= 2 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:06:23,699 INFO L273 TraceCheckUtils]: 3: Hoare triple {28336#(<= 2 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {28337#(<= 3 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:06:23,699 INFO L273 TraceCheckUtils]: 4: Hoare triple {28337#(<= 3 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {28338#(<= 4 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:06:23,700 INFO L273 TraceCheckUtils]: 5: Hoare triple {28338#(<= 4 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {28339#(<= 5 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:06:23,701 INFO L273 TraceCheckUtils]: 6: Hoare triple {28339#(<= 5 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {28340#(<= 6 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:06:23,702 INFO L273 TraceCheckUtils]: 7: Hoare triple {28340#(<= 6 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {28341#(<= 7 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:06:23,703 INFO L273 TraceCheckUtils]: 8: Hoare triple {28341#(<= 7 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {28342#(<= 8 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:06:23,704 INFO L273 TraceCheckUtils]: 9: Hoare triple {28342#(<= 8 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {28343#(<= 9 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:06:23,705 INFO L273 TraceCheckUtils]: 10: Hoare triple {28343#(<= 9 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {28344#(<= 10 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:06:23,706 INFO L273 TraceCheckUtils]: 11: Hoare triple {28344#(<= 10 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {28345#(<= 11 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:06:23,706 INFO L273 TraceCheckUtils]: 12: Hoare triple {28345#(<= 11 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {28346#(<= 12 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:06:23,707 INFO L273 TraceCheckUtils]: 13: Hoare triple {28346#(<= 12 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {28347#(<= 13 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:06:23,708 INFO L273 TraceCheckUtils]: 14: Hoare triple {28347#(<= 13 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {28348#(<= 14 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:06:23,709 INFO L273 TraceCheckUtils]: 15: Hoare triple {28348#(<= 14 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {28349#(<= 15 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:06:23,710 INFO L273 TraceCheckUtils]: 16: Hoare triple {28349#(<= 15 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {28350#(<= 16 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:06:23,711 INFO L273 TraceCheckUtils]: 17: Hoare triple {28350#(<= 16 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {28351#(<= 17 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:06:23,712 INFO L273 TraceCheckUtils]: 18: Hoare triple {28351#(<= 17 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {28352#(<= 18 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:06:23,712 INFO L273 TraceCheckUtils]: 19: Hoare triple {28352#(<= 18 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {28353#(<= 19 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:06:23,713 INFO L273 TraceCheckUtils]: 20: Hoare triple {28353#(<= 19 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {28354#(<= 20 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:06:23,714 INFO L273 TraceCheckUtils]: 21: Hoare triple {28354#(<= 20 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {28355#(<= 21 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:06:23,715 INFO L273 TraceCheckUtils]: 22: Hoare triple {28355#(<= 21 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {28356#(<= 22 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:06:23,716 INFO L273 TraceCheckUtils]: 23: Hoare triple {28356#(<= 22 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {28357#(<= 23 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:06:23,717 INFO L273 TraceCheckUtils]: 24: Hoare triple {28357#(<= 23 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {28358#(<= 24 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:06:23,718 INFO L273 TraceCheckUtils]: 25: Hoare triple {28358#(<= 24 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {28359#(<= 25 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:06:23,719 INFO L273 TraceCheckUtils]: 26: Hoare triple {28359#(<= 25 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {28360#(<= 26 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:06:23,719 INFO L273 TraceCheckUtils]: 27: Hoare triple {28360#(<= 26 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {28361#(<= 27 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:06:23,720 INFO L273 TraceCheckUtils]: 28: Hoare triple {28361#(<= 27 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {28362#(<= 28 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:06:23,721 INFO L273 TraceCheckUtils]: 29: Hoare triple {28362#(<= 28 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {28363#(<= 29 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:06:23,722 INFO L273 TraceCheckUtils]: 30: Hoare triple {28363#(<= 29 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {28364#(<= 30 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:06:23,723 INFO L273 TraceCheckUtils]: 31: Hoare triple {28364#(<= 30 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {28365#(<= 31 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:06:23,724 INFO L273 TraceCheckUtils]: 32: Hoare triple {28365#(<= 31 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {28366#(<= 32 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:06:23,725 INFO L273 TraceCheckUtils]: 33: Hoare triple {28366#(<= 32 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {28367#(<= 33 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:06:23,726 INFO L273 TraceCheckUtils]: 34: Hoare triple {28367#(<= 33 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {28368#(<= 34 ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:06:23,727 INFO L273 TraceCheckUtils]: 35: Hoare triple {28368#(<= 34 ULTIMATE.start_main_~MAX~6)} assume !(main_~i~6 < main_~MAX~6);main_~str1~6 := main_~str1~6[main_~MAX~6 - 1 := 0];main_~j~6 := 0;main_~i~6 := main_~MAX~6 - 1; {28367#(<= 33 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:06:23,728 INFO L273 TraceCheckUtils]: 36: Hoare triple {28367#(<= 33 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {28366#(<= 32 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:06:23,729 INFO L273 TraceCheckUtils]: 37: Hoare triple {28366#(<= 32 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {28365#(<= 31 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:06:23,730 INFO L273 TraceCheckUtils]: 38: Hoare triple {28365#(<= 31 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {28364#(<= 30 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:06:23,731 INFO L273 TraceCheckUtils]: 39: Hoare triple {28364#(<= 30 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {28363#(<= 29 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:06:23,731 INFO L273 TraceCheckUtils]: 40: Hoare triple {28363#(<= 29 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {28362#(<= 28 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:06:23,732 INFO L273 TraceCheckUtils]: 41: Hoare triple {28362#(<= 28 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {28361#(<= 27 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:06:23,733 INFO L273 TraceCheckUtils]: 42: Hoare triple {28361#(<= 27 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {28360#(<= 26 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:06:23,734 INFO L273 TraceCheckUtils]: 43: Hoare triple {28360#(<= 26 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {28359#(<= 25 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:06:23,735 INFO L273 TraceCheckUtils]: 44: Hoare triple {28359#(<= 25 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {28358#(<= 24 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:06:23,736 INFO L273 TraceCheckUtils]: 45: Hoare triple {28358#(<= 24 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {28357#(<= 23 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:06:23,737 INFO L273 TraceCheckUtils]: 46: Hoare triple {28357#(<= 23 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {28356#(<= 22 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:06:23,738 INFO L273 TraceCheckUtils]: 47: Hoare triple {28356#(<= 22 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {28355#(<= 21 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:06:23,739 INFO L273 TraceCheckUtils]: 48: Hoare triple {28355#(<= 21 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {28354#(<= 20 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:06:23,740 INFO L273 TraceCheckUtils]: 49: Hoare triple {28354#(<= 20 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {28353#(<= 19 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:06:23,741 INFO L273 TraceCheckUtils]: 50: Hoare triple {28353#(<= 19 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {28352#(<= 18 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:06:23,742 INFO L273 TraceCheckUtils]: 51: Hoare triple {28352#(<= 18 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {28351#(<= 17 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:06:23,742 INFO L273 TraceCheckUtils]: 52: Hoare triple {28351#(<= 17 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {28350#(<= 16 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:06:23,743 INFO L273 TraceCheckUtils]: 53: Hoare triple {28350#(<= 16 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {28349#(<= 15 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:06:23,744 INFO L273 TraceCheckUtils]: 54: Hoare triple {28349#(<= 15 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {28348#(<= 14 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:06:23,745 INFO L273 TraceCheckUtils]: 55: Hoare triple {28348#(<= 14 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {28347#(<= 13 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:06:23,746 INFO L273 TraceCheckUtils]: 56: Hoare triple {28347#(<= 13 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {28346#(<= 12 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:06:23,747 INFO L273 TraceCheckUtils]: 57: Hoare triple {28346#(<= 12 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {28345#(<= 11 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:06:23,751 INFO L273 TraceCheckUtils]: 58: Hoare triple {28345#(<= 11 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {28344#(<= 10 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:06:23,755 INFO L273 TraceCheckUtils]: 59: Hoare triple {28344#(<= 10 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {28343#(<= 9 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:06:23,758 INFO L273 TraceCheckUtils]: 60: Hoare triple {28343#(<= 9 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {28342#(<= 8 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:06:23,758 INFO L273 TraceCheckUtils]: 61: Hoare triple {28342#(<= 8 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {28341#(<= 7 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:06:23,760 INFO L273 TraceCheckUtils]: 62: Hoare triple {28341#(<= 7 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {28340#(<= 6 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:06:23,760 INFO L273 TraceCheckUtils]: 63: Hoare triple {28340#(<= 6 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {28339#(<= 5 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:06:23,762 INFO L273 TraceCheckUtils]: 64: Hoare triple {28339#(<= 5 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {28338#(<= 4 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:06:23,762 INFO L273 TraceCheckUtils]: 65: Hoare triple {28338#(<= 4 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {28337#(<= 3 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:06:23,764 INFO L273 TraceCheckUtils]: 66: Hoare triple {28337#(<= 3 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {28336#(<= 2 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:06:23,766 INFO L273 TraceCheckUtils]: 67: Hoare triple {28336#(<= 2 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {28335#(<= 1 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:06:23,771 INFO L273 TraceCheckUtils]: 68: Hoare triple {28335#(<= 1 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {28334#(<= 0 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:06:23,771 INFO L273 TraceCheckUtils]: 69: Hoare triple {28334#(<= 0 ULTIMATE.start_main_~i~6)} assume !(main_~i~6 >= 0);main_~j~6 := main_~MAX~6 - 1;main_~i~6 := 0;assume !!(main_~i~6 < main_~MAX~6);__VERIFIER_assert_#in~cond := (if main_~str1~6[main_~i~6] == main_~str2~6[main_~j~6] then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond;assume __VERIFIER_assert_~cond == 0;assume !false; {28333#false} is VALID [2019-01-31 15:06:23,771 INFO L273 TraceCheckUtils]: 70: Hoare triple {28333#false} assume !false; {28333#false} is VALID [2019-01-31 15:06:23,776 INFO L134 CoverageAnalysis]: Checked inductivity of 1156 backedges. 561 proven. 595 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-31 15:06:23,776 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-31 15:06:23,776 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-01-31 15:06:23,776 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-01-31 15:06:23,776 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-01-31 15:06:23,776 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-31 15:06:23,776 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 51 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 51 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-01-31 15:06:23,785 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2019-01-31 15:06:23,785 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST2 (IT: FPandBP) [2019-01-31 15:06:23,976 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 18 check-sat command(s) [2019-01-31 15:06:23,976 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-01-31 15:06:24,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-31 15:06:24,005 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-31 15:06:24,363 INFO L273 TraceCheckUtils]: 0: Hoare triple {28332#true} havoc main_#res;havoc main_#t~nondet0, main_#t~nondet2, main_#t~post1, main_#t~post4, main_#t~post3, main_#t~post6, main_#t~post5, main_~MAX~6, main_~str1~6, main_~str2~6, main_~cont~6, main_~i~6, main_~j~6;main_~MAX~6 := (if main_#t~nondet0 % 4294967296 % 4294967296 <= 2147483647 then main_#t~nondet0 % 4294967296 % 4294967296 else main_#t~nondet0 % 4294967296 % 4294967296 - 4294967296);havoc main_#t~nondet0;havoc main_~str1~6;havoc main_~str2~6;havoc main_~cont~6;havoc main_~i~6;havoc main_~j~6;main_~cont~6 := 0;main_~i~6 := 0; {28334#(<= 0 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:06:24,364 INFO L273 TraceCheckUtils]: 1: Hoare triple {28334#(<= 0 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {28335#(<= 1 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:06:24,365 INFO L273 TraceCheckUtils]: 2: Hoare triple {28335#(<= 1 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {28336#(<= 2 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:06:24,366 INFO L273 TraceCheckUtils]: 3: Hoare triple {28336#(<= 2 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {28337#(<= 3 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:06:24,367 INFO L273 TraceCheckUtils]: 4: Hoare triple {28337#(<= 3 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {28338#(<= 4 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:06:24,368 INFO L273 TraceCheckUtils]: 5: Hoare triple {28338#(<= 4 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {28339#(<= 5 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:06:24,369 INFO L273 TraceCheckUtils]: 6: Hoare triple {28339#(<= 5 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {28340#(<= 6 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:06:24,369 INFO L273 TraceCheckUtils]: 7: Hoare triple {28340#(<= 6 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {28341#(<= 7 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:06:24,370 INFO L273 TraceCheckUtils]: 8: Hoare triple {28341#(<= 7 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {28342#(<= 8 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:06:24,371 INFO L273 TraceCheckUtils]: 9: Hoare triple {28342#(<= 8 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {28343#(<= 9 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:06:24,372 INFO L273 TraceCheckUtils]: 10: Hoare triple {28343#(<= 9 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {28344#(<= 10 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:06:24,373 INFO L273 TraceCheckUtils]: 11: Hoare triple {28344#(<= 10 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {28345#(<= 11 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:06:24,374 INFO L273 TraceCheckUtils]: 12: Hoare triple {28345#(<= 11 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {28346#(<= 12 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:06:24,375 INFO L273 TraceCheckUtils]: 13: Hoare triple {28346#(<= 12 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {28347#(<= 13 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:06:24,395 INFO L273 TraceCheckUtils]: 14: Hoare triple {28347#(<= 13 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {28348#(<= 14 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:06:24,408 INFO L273 TraceCheckUtils]: 15: Hoare triple {28348#(<= 14 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {28349#(<= 15 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:06:24,417 INFO L273 TraceCheckUtils]: 16: Hoare triple {28349#(<= 15 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {28350#(<= 16 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:06:24,418 INFO L273 TraceCheckUtils]: 17: Hoare triple {28350#(<= 16 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {28351#(<= 17 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:06:24,419 INFO L273 TraceCheckUtils]: 18: Hoare triple {28351#(<= 17 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {28352#(<= 18 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:06:24,419 INFO L273 TraceCheckUtils]: 19: Hoare triple {28352#(<= 18 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {28353#(<= 19 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:06:24,420 INFO L273 TraceCheckUtils]: 20: Hoare triple {28353#(<= 19 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {28354#(<= 20 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:06:24,420 INFO L273 TraceCheckUtils]: 21: Hoare triple {28354#(<= 20 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {28355#(<= 21 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:06:24,421 INFO L273 TraceCheckUtils]: 22: Hoare triple {28355#(<= 21 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {28356#(<= 22 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:06:24,421 INFO L273 TraceCheckUtils]: 23: Hoare triple {28356#(<= 22 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {28357#(<= 23 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:06:24,422 INFO L273 TraceCheckUtils]: 24: Hoare triple {28357#(<= 23 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {28358#(<= 24 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:06:24,423 INFO L273 TraceCheckUtils]: 25: Hoare triple {28358#(<= 24 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {28359#(<= 25 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:06:24,424 INFO L273 TraceCheckUtils]: 26: Hoare triple {28359#(<= 25 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {28360#(<= 26 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:06:24,425 INFO L273 TraceCheckUtils]: 27: Hoare triple {28360#(<= 26 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {28361#(<= 27 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:06:24,426 INFO L273 TraceCheckUtils]: 28: Hoare triple {28361#(<= 27 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {28362#(<= 28 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:06:24,427 INFO L273 TraceCheckUtils]: 29: Hoare triple {28362#(<= 28 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {28363#(<= 29 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:06:24,428 INFO L273 TraceCheckUtils]: 30: Hoare triple {28363#(<= 29 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {28364#(<= 30 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:06:24,429 INFO L273 TraceCheckUtils]: 31: Hoare triple {28364#(<= 30 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {28365#(<= 31 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:06:24,429 INFO L273 TraceCheckUtils]: 32: Hoare triple {28365#(<= 31 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {28366#(<= 32 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:06:24,430 INFO L273 TraceCheckUtils]: 33: Hoare triple {28366#(<= 32 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {28367#(<= 33 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:06:24,431 INFO L273 TraceCheckUtils]: 34: Hoare triple {28367#(<= 33 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {28368#(<= 34 ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:06:24,432 INFO L273 TraceCheckUtils]: 35: Hoare triple {28368#(<= 34 ULTIMATE.start_main_~MAX~6)} assume !(main_~i~6 < main_~MAX~6);main_~str1~6 := main_~str1~6[main_~MAX~6 - 1 := 0];main_~j~6 := 0;main_~i~6 := main_~MAX~6 - 1; {28367#(<= 33 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:06:24,433 INFO L273 TraceCheckUtils]: 36: Hoare triple {28367#(<= 33 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {28366#(<= 32 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:06:24,434 INFO L273 TraceCheckUtils]: 37: Hoare triple {28366#(<= 32 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {28365#(<= 31 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:06:24,435 INFO L273 TraceCheckUtils]: 38: Hoare triple {28365#(<= 31 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {28364#(<= 30 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:06:24,435 INFO L273 TraceCheckUtils]: 39: Hoare triple {28364#(<= 30 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {28363#(<= 29 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:06:24,436 INFO L273 TraceCheckUtils]: 40: Hoare triple {28363#(<= 29 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {28362#(<= 28 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:06:24,437 INFO L273 TraceCheckUtils]: 41: Hoare triple {28362#(<= 28 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {28361#(<= 27 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:06:24,438 INFO L273 TraceCheckUtils]: 42: Hoare triple {28361#(<= 27 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {28360#(<= 26 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:06:24,439 INFO L273 TraceCheckUtils]: 43: Hoare triple {28360#(<= 26 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {28359#(<= 25 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:06:24,440 INFO L273 TraceCheckUtils]: 44: Hoare triple {28359#(<= 25 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {28358#(<= 24 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:06:24,441 INFO L273 TraceCheckUtils]: 45: Hoare triple {28358#(<= 24 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {28357#(<= 23 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:06:24,441 INFO L273 TraceCheckUtils]: 46: Hoare triple {28357#(<= 23 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {28356#(<= 22 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:06:24,442 INFO L273 TraceCheckUtils]: 47: Hoare triple {28356#(<= 22 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {28355#(<= 21 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:06:24,443 INFO L273 TraceCheckUtils]: 48: Hoare triple {28355#(<= 21 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {28354#(<= 20 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:06:24,444 INFO L273 TraceCheckUtils]: 49: Hoare triple {28354#(<= 20 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {28353#(<= 19 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:06:24,445 INFO L273 TraceCheckUtils]: 50: Hoare triple {28353#(<= 19 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {28352#(<= 18 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:06:24,446 INFO L273 TraceCheckUtils]: 51: Hoare triple {28352#(<= 18 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {28351#(<= 17 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:06:24,447 INFO L273 TraceCheckUtils]: 52: Hoare triple {28351#(<= 17 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {28350#(<= 16 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:06:24,448 INFO L273 TraceCheckUtils]: 53: Hoare triple {28350#(<= 16 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {28349#(<= 15 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:06:24,448 INFO L273 TraceCheckUtils]: 54: Hoare triple {28349#(<= 15 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {28348#(<= 14 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:06:24,449 INFO L273 TraceCheckUtils]: 55: Hoare triple {28348#(<= 14 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {28347#(<= 13 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:06:24,450 INFO L273 TraceCheckUtils]: 56: Hoare triple {28347#(<= 13 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {28346#(<= 12 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:06:24,451 INFO L273 TraceCheckUtils]: 57: Hoare triple {28346#(<= 12 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {28345#(<= 11 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:06:24,452 INFO L273 TraceCheckUtils]: 58: Hoare triple {28345#(<= 11 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {28344#(<= 10 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:06:24,453 INFO L273 TraceCheckUtils]: 59: Hoare triple {28344#(<= 10 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {28343#(<= 9 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:06:24,454 INFO L273 TraceCheckUtils]: 60: Hoare triple {28343#(<= 9 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {28342#(<= 8 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:06:24,454 INFO L273 TraceCheckUtils]: 61: Hoare triple {28342#(<= 8 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {28341#(<= 7 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:06:24,455 INFO L273 TraceCheckUtils]: 62: Hoare triple {28341#(<= 7 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {28340#(<= 6 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:06:24,456 INFO L273 TraceCheckUtils]: 63: Hoare triple {28340#(<= 6 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {28339#(<= 5 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:06:24,457 INFO L273 TraceCheckUtils]: 64: Hoare triple {28339#(<= 5 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {28338#(<= 4 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:06:24,458 INFO L273 TraceCheckUtils]: 65: Hoare triple {28338#(<= 4 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {28337#(<= 3 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:06:24,459 INFO L273 TraceCheckUtils]: 66: Hoare triple {28337#(<= 3 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {28336#(<= 2 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:06:24,460 INFO L273 TraceCheckUtils]: 67: Hoare triple {28336#(<= 2 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {28335#(<= 1 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:06:24,460 INFO L273 TraceCheckUtils]: 68: Hoare triple {28335#(<= 1 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {28334#(<= 0 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:06:24,461 INFO L273 TraceCheckUtils]: 69: Hoare triple {28334#(<= 0 ULTIMATE.start_main_~i~6)} assume !(main_~i~6 >= 0);main_~j~6 := main_~MAX~6 - 1;main_~i~6 := 0;assume !!(main_~i~6 < main_~MAX~6);__VERIFIER_assert_#in~cond := (if main_~str1~6[main_~i~6] == main_~str2~6[main_~j~6] then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond;assume __VERIFIER_assert_~cond == 0;assume !false; {28333#false} is VALID [2019-01-31 15:06:24,461 INFO L273 TraceCheckUtils]: 70: Hoare triple {28333#false} assume !false; {28333#false} is VALID [2019-01-31 15:06:24,466 INFO L134 CoverageAnalysis]: Checked inductivity of 1156 backedges. 561 proven. 595 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-31 15:06:24,466 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2019-01-31 15:06:26,080 INFO L273 TraceCheckUtils]: 70: Hoare triple {28333#false} assume !false; {28333#false} is VALID [2019-01-31 15:06:26,080 INFO L273 TraceCheckUtils]: 69: Hoare triple {28334#(<= 0 ULTIMATE.start_main_~i~6)} assume !(main_~i~6 >= 0);main_~j~6 := main_~MAX~6 - 1;main_~i~6 := 0;assume !!(main_~i~6 < main_~MAX~6);__VERIFIER_assert_#in~cond := (if main_~str1~6[main_~i~6] == main_~str2~6[main_~j~6] then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond;assume __VERIFIER_assert_~cond == 0;assume !false; {28333#false} is VALID [2019-01-31 15:06:26,081 INFO L273 TraceCheckUtils]: 68: Hoare triple {28335#(<= 1 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {28334#(<= 0 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:06:26,082 INFO L273 TraceCheckUtils]: 67: Hoare triple {28336#(<= 2 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {28335#(<= 1 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:06:26,082 INFO L273 TraceCheckUtils]: 66: Hoare triple {28337#(<= 3 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {28336#(<= 2 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:06:26,083 INFO L273 TraceCheckUtils]: 65: Hoare triple {28338#(<= 4 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {28337#(<= 3 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:06:26,084 INFO L273 TraceCheckUtils]: 64: Hoare triple {28339#(<= 5 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {28338#(<= 4 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:06:26,084 INFO L273 TraceCheckUtils]: 63: Hoare triple {28340#(<= 6 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {28339#(<= 5 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:06:26,085 INFO L273 TraceCheckUtils]: 62: Hoare triple {28341#(<= 7 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {28340#(<= 6 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:06:26,086 INFO L273 TraceCheckUtils]: 61: Hoare triple {28342#(<= 8 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {28341#(<= 7 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:06:26,087 INFO L273 TraceCheckUtils]: 60: Hoare triple {28343#(<= 9 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {28342#(<= 8 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:06:26,088 INFO L273 TraceCheckUtils]: 59: Hoare triple {28344#(<= 10 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {28343#(<= 9 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:06:26,089 INFO L273 TraceCheckUtils]: 58: Hoare triple {28345#(<= 11 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {28344#(<= 10 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:06:26,090 INFO L273 TraceCheckUtils]: 57: Hoare triple {28346#(<= 12 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {28345#(<= 11 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:06:26,090 INFO L273 TraceCheckUtils]: 56: Hoare triple {28347#(<= 13 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {28346#(<= 12 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:06:26,091 INFO L273 TraceCheckUtils]: 55: Hoare triple {28348#(<= 14 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {28347#(<= 13 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:06:26,092 INFO L273 TraceCheckUtils]: 54: Hoare triple {28349#(<= 15 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {28348#(<= 14 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:06:26,093 INFO L273 TraceCheckUtils]: 53: Hoare triple {28350#(<= 16 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {28349#(<= 15 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:06:26,094 INFO L273 TraceCheckUtils]: 52: Hoare triple {28351#(<= 17 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {28350#(<= 16 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:06:26,095 INFO L273 TraceCheckUtils]: 51: Hoare triple {28352#(<= 18 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {28351#(<= 17 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:06:26,096 INFO L273 TraceCheckUtils]: 50: Hoare triple {28353#(<= 19 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {28352#(<= 18 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:06:26,096 INFO L273 TraceCheckUtils]: 49: Hoare triple {28354#(<= 20 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {28353#(<= 19 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:06:26,097 INFO L273 TraceCheckUtils]: 48: Hoare triple {28355#(<= 21 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {28354#(<= 20 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:06:26,098 INFO L273 TraceCheckUtils]: 47: Hoare triple {28356#(<= 22 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {28355#(<= 21 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:06:26,099 INFO L273 TraceCheckUtils]: 46: Hoare triple {28357#(<= 23 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {28356#(<= 22 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:06:26,100 INFO L273 TraceCheckUtils]: 45: Hoare triple {28358#(<= 24 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {28357#(<= 23 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:06:26,101 INFO L273 TraceCheckUtils]: 44: Hoare triple {28359#(<= 25 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {28358#(<= 24 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:06:26,102 INFO L273 TraceCheckUtils]: 43: Hoare triple {28360#(<= 26 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {28359#(<= 25 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:06:26,102 INFO L273 TraceCheckUtils]: 42: Hoare triple {28361#(<= 27 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {28360#(<= 26 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:06:26,103 INFO L273 TraceCheckUtils]: 41: Hoare triple {28362#(<= 28 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {28361#(<= 27 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:06:26,104 INFO L273 TraceCheckUtils]: 40: Hoare triple {28363#(<= 29 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {28362#(<= 28 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:06:26,105 INFO L273 TraceCheckUtils]: 39: Hoare triple {28364#(<= 30 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {28363#(<= 29 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:06:26,106 INFO L273 TraceCheckUtils]: 38: Hoare triple {28365#(<= 31 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {28364#(<= 30 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:06:26,107 INFO L273 TraceCheckUtils]: 37: Hoare triple {28366#(<= 32 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {28365#(<= 31 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:06:26,108 INFO L273 TraceCheckUtils]: 36: Hoare triple {28367#(<= 33 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {28366#(<= 32 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:06:26,109 INFO L273 TraceCheckUtils]: 35: Hoare triple {28368#(<= 34 ULTIMATE.start_main_~MAX~6)} assume !(main_~i~6 < main_~MAX~6);main_~str1~6 := main_~str1~6[main_~MAX~6 - 1 := 0];main_~j~6 := 0;main_~i~6 := main_~MAX~6 - 1; {28367#(<= 33 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:06:26,110 INFO L273 TraceCheckUtils]: 34: Hoare triple {28367#(<= 33 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {28368#(<= 34 ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:06:26,110 INFO L273 TraceCheckUtils]: 33: Hoare triple {28366#(<= 32 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {28367#(<= 33 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:06:26,111 INFO L273 TraceCheckUtils]: 32: Hoare triple {28365#(<= 31 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {28366#(<= 32 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:06:26,112 INFO L273 TraceCheckUtils]: 31: Hoare triple {28364#(<= 30 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {28365#(<= 31 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:06:26,113 INFO L273 TraceCheckUtils]: 30: Hoare triple {28363#(<= 29 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {28364#(<= 30 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:06:26,114 INFO L273 TraceCheckUtils]: 29: Hoare triple {28362#(<= 28 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {28363#(<= 29 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:06:26,115 INFO L273 TraceCheckUtils]: 28: Hoare triple {28361#(<= 27 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {28362#(<= 28 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:06:26,116 INFO L273 TraceCheckUtils]: 27: Hoare triple {28360#(<= 26 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {28361#(<= 27 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:06:26,117 INFO L273 TraceCheckUtils]: 26: Hoare triple {28359#(<= 25 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {28360#(<= 26 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:06:26,118 INFO L273 TraceCheckUtils]: 25: Hoare triple {28358#(<= 24 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {28359#(<= 25 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:06:26,119 INFO L273 TraceCheckUtils]: 24: Hoare triple {28357#(<= 23 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {28358#(<= 24 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:06:26,120 INFO L273 TraceCheckUtils]: 23: Hoare triple {28356#(<= 22 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {28357#(<= 23 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:06:26,120 INFO L273 TraceCheckUtils]: 22: Hoare triple {28355#(<= 21 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {28356#(<= 22 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:06:26,121 INFO L273 TraceCheckUtils]: 21: Hoare triple {28354#(<= 20 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {28355#(<= 21 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:06:26,122 INFO L273 TraceCheckUtils]: 20: Hoare triple {28353#(<= 19 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {28354#(<= 20 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:06:26,123 INFO L273 TraceCheckUtils]: 19: Hoare triple {28352#(<= 18 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {28353#(<= 19 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:06:26,124 INFO L273 TraceCheckUtils]: 18: Hoare triple {28351#(<= 17 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {28352#(<= 18 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:06:26,125 INFO L273 TraceCheckUtils]: 17: Hoare triple {28350#(<= 16 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {28351#(<= 17 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:06:26,126 INFO L273 TraceCheckUtils]: 16: Hoare triple {28349#(<= 15 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {28350#(<= 16 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:06:26,127 INFO L273 TraceCheckUtils]: 15: Hoare triple {28348#(<= 14 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {28349#(<= 15 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:06:26,128 INFO L273 TraceCheckUtils]: 14: Hoare triple {28347#(<= 13 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {28348#(<= 14 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:06:26,129 INFO L273 TraceCheckUtils]: 13: Hoare triple {28346#(<= 12 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {28347#(<= 13 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:06:26,129 INFO L273 TraceCheckUtils]: 12: Hoare triple {28345#(<= 11 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {28346#(<= 12 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:06:26,130 INFO L273 TraceCheckUtils]: 11: Hoare triple {28344#(<= 10 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {28345#(<= 11 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:06:26,131 INFO L273 TraceCheckUtils]: 10: Hoare triple {28343#(<= 9 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {28344#(<= 10 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:06:26,132 INFO L273 TraceCheckUtils]: 9: Hoare triple {28342#(<= 8 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {28343#(<= 9 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:06:26,133 INFO L273 TraceCheckUtils]: 8: Hoare triple {28341#(<= 7 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {28342#(<= 8 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:06:26,134 INFO L273 TraceCheckUtils]: 7: Hoare triple {28340#(<= 6 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {28341#(<= 7 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:06:26,134 INFO L273 TraceCheckUtils]: 6: Hoare triple {28339#(<= 5 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {28340#(<= 6 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:06:26,135 INFO L273 TraceCheckUtils]: 5: Hoare triple {28338#(<= 4 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {28339#(<= 5 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:06:26,136 INFO L273 TraceCheckUtils]: 4: Hoare triple {28337#(<= 3 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {28338#(<= 4 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:06:26,137 INFO L273 TraceCheckUtils]: 3: Hoare triple {28336#(<= 2 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {28337#(<= 3 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:06:26,138 INFO L273 TraceCheckUtils]: 2: Hoare triple {28335#(<= 1 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {28336#(<= 2 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:06:26,139 INFO L273 TraceCheckUtils]: 1: Hoare triple {28334#(<= 0 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {28335#(<= 1 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:06:26,139 INFO L273 TraceCheckUtils]: 0: Hoare triple {28332#true} havoc main_#res;havoc main_#t~nondet0, main_#t~nondet2, main_#t~post1, main_#t~post4, main_#t~post3, main_#t~post6, main_#t~post5, main_~MAX~6, main_~str1~6, main_~str2~6, main_~cont~6, main_~i~6, main_~j~6;main_~MAX~6 := (if main_#t~nondet0 % 4294967296 % 4294967296 <= 2147483647 then main_#t~nondet0 % 4294967296 % 4294967296 else main_#t~nondet0 % 4294967296 % 4294967296 - 4294967296);havoc main_#t~nondet0;havoc main_~str1~6;havoc main_~str2~6;havoc main_~cont~6;havoc main_~i~6;havoc main_~j~6;main_~cont~6 := 0;main_~i~6 := 0; {28334#(<= 0 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:06:26,144 INFO L134 CoverageAnalysis]: Checked inductivity of 1156 backedges. 561 proven. 595 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-31 15:06:26,163 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-01-31 15:06:26,163 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [36, 36, 36] total 36 [2019-01-31 15:06:26,163 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-01-31 15:06:26,163 INFO L78 Accepts]: Start accepts. Automaton has 37 states. Word has length 71 [2019-01-31 15:06:26,163 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-01-31 15:06:26,163 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 37 states. [2019-01-31 15:06:26,244 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 71 edges. 71 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-01-31 15:06:26,244 INFO L459 AbstractCegarLoop]: Interpolant automaton has 37 states [2019-01-31 15:06:26,244 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2019-01-31 15:06:26,244 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=632, Invalid=700, Unknown=0, NotChecked=0, Total=1332 [2019-01-31 15:06:26,245 INFO L87 Difference]: Start difference. First operand 72 states and 73 transitions. Second operand 37 states. [2019-01-31 15:06:29,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 15:06:29,141 INFO L93 Difference]: Finished difference Result 75 states and 76 transitions. [2019-01-31 15:06:29,142 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2019-01-31 15:06:29,142 INFO L78 Accepts]: Start accepts. Automaton has 37 states. Word has length 71 [2019-01-31 15:06:29,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-31 15:06:29,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2019-01-31 15:06:29,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 76 transitions. [2019-01-31 15:06:29,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2019-01-31 15:06:29,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 76 transitions. [2019-01-31 15:06:29,144 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 71 states and 76 transitions. [2019-01-31 15:06:29,211 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 76 edges. 76 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-01-31 15:06:29,213 INFO L225 Difference]: With dead ends: 75 [2019-01-31 15:06:29,213 INFO L226 Difference]: Without dead ends: 73 [2019-01-31 15:06:29,213 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 244 GetRequests, 107 SyntacticMatches, 68 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2244 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=1890, Invalid=3080, Unknown=0, NotChecked=0, Total=4970 [2019-01-31 15:06:29,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2019-01-31 15:06:31,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 73. [2019-01-31 15:06:31,407 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-01-31 15:06:31,407 INFO L82 GeneralOperation]: Start isEquivalent. First operand 73 states. Second operand 73 states. [2019-01-31 15:06:31,407 INFO L74 IsIncluded]: Start isIncluded. First operand 73 states. Second operand 73 states. [2019-01-31 15:06:31,407 INFO L87 Difference]: Start difference. First operand 73 states. Second operand 73 states. [2019-01-31 15:06:31,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 15:06:31,408 INFO L93 Difference]: Finished difference Result 73 states and 74 transitions. [2019-01-31 15:06:31,409 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 74 transitions. [2019-01-31 15:06:31,409 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-31 15:06:31,409 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-01-31 15:06:31,409 INFO L74 IsIncluded]: Start isIncluded. First operand 73 states. Second operand 73 states. [2019-01-31 15:06:31,410 INFO L87 Difference]: Start difference. First operand 73 states. Second operand 73 states. [2019-01-31 15:06:31,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 15:06:31,411 INFO L93 Difference]: Finished difference Result 73 states and 74 transitions. [2019-01-31 15:06:31,411 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 74 transitions. [2019-01-31 15:06:31,411 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-31 15:06:31,411 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-01-31 15:06:31,411 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-01-31 15:06:31,411 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-01-31 15:06:31,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73 states. [2019-01-31 15:06:31,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 74 transitions. [2019-01-31 15:06:31,412 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 74 transitions. Word has length 71 [2019-01-31 15:06:31,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-31 15:06:31,413 INFO L480 AbstractCegarLoop]: Abstraction has 73 states and 74 transitions. [2019-01-31 15:06:31,413 INFO L481 AbstractCegarLoop]: Interpolant automaton has 37 states. [2019-01-31 15:06:31,413 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 74 transitions. [2019-01-31 15:06:31,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2019-01-31 15:06:31,413 INFO L394 BasicCegarLoop]: Found error trace [2019-01-31 15:06:31,413 INFO L402 BasicCegarLoop]: trace histogram [34, 34, 1, 1, 1, 1] [2019-01-31 15:06:31,413 INFO L423 AbstractCegarLoop]: === Iteration 53 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2019-01-31 15:06:31,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-31 15:06:31,414 INFO L82 PathProgramCache]: Analyzing trace with hash 1548924138, now seen corresponding path program 51 times [2019-01-31 15:06:31,414 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-01-31 15:06:31,414 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-31 15:06:31,414 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-01-31 15:06:31,414 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-31 15:06:31,414 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-01-31 15:06:31,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-31 15:06:34,382 INFO L273 TraceCheckUtils]: 0: Hoare triple {29296#true} havoc main_#res;havoc main_#t~nondet0, main_#t~nondet2, main_#t~post1, main_#t~post4, main_#t~post3, main_#t~post6, main_#t~post5, main_~MAX~6, main_~str1~6, main_~str2~6, main_~cont~6, main_~i~6, main_~j~6;main_~MAX~6 := (if main_#t~nondet0 % 4294967296 % 4294967296 <= 2147483647 then main_#t~nondet0 % 4294967296 % 4294967296 else main_#t~nondet0 % 4294967296 % 4294967296 - 4294967296);havoc main_#t~nondet0;havoc main_~str1~6;havoc main_~str2~6;havoc main_~cont~6;havoc main_~i~6;havoc main_~j~6;main_~cont~6 := 0;main_~i~6 := 0; {29298#(and (<= ULTIMATE.start_main_~i~6 0) (<= 0 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:06:34,383 INFO L273 TraceCheckUtils]: 1: Hoare triple {29298#(and (<= ULTIMATE.start_main_~i~6 0) (<= 0 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {29299#(and (<= ULTIMATE.start_main_~i~6 1) (<= 1 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:06:34,384 INFO L273 TraceCheckUtils]: 2: Hoare triple {29299#(and (<= ULTIMATE.start_main_~i~6 1) (<= 1 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {29300#(and (<= ULTIMATE.start_main_~i~6 2) (<= 2 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:06:34,385 INFO L273 TraceCheckUtils]: 3: Hoare triple {29300#(and (<= ULTIMATE.start_main_~i~6 2) (<= 2 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {29301#(and (<= 3 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 3))} is VALID [2019-01-31 15:06:34,386 INFO L273 TraceCheckUtils]: 4: Hoare triple {29301#(and (<= 3 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 3))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {29302#(and (<= ULTIMATE.start_main_~i~6 4) (<= 4 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:06:34,387 INFO L273 TraceCheckUtils]: 5: Hoare triple {29302#(and (<= ULTIMATE.start_main_~i~6 4) (<= 4 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {29303#(and (<= 5 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 5))} is VALID [2019-01-31 15:06:34,388 INFO L273 TraceCheckUtils]: 6: Hoare triple {29303#(and (<= 5 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 5))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {29304#(and (<= ULTIMATE.start_main_~i~6 6) (<= 6 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:06:34,389 INFO L273 TraceCheckUtils]: 7: Hoare triple {29304#(and (<= ULTIMATE.start_main_~i~6 6) (<= 6 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {29305#(and (<= 7 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 7))} is VALID [2019-01-31 15:06:34,390 INFO L273 TraceCheckUtils]: 8: Hoare triple {29305#(and (<= 7 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 7))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {29306#(and (<= ULTIMATE.start_main_~i~6 8) (<= 8 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:06:34,391 INFO L273 TraceCheckUtils]: 9: Hoare triple {29306#(and (<= ULTIMATE.start_main_~i~6 8) (<= 8 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {29307#(and (<= ULTIMATE.start_main_~i~6 9) (<= 9 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:06:34,392 INFO L273 TraceCheckUtils]: 10: Hoare triple {29307#(and (<= ULTIMATE.start_main_~i~6 9) (<= 9 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {29308#(and (<= ULTIMATE.start_main_~i~6 10) (<= 10 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:06:34,393 INFO L273 TraceCheckUtils]: 11: Hoare triple {29308#(and (<= ULTIMATE.start_main_~i~6 10) (<= 10 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {29309#(and (<= 11 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 11))} is VALID [2019-01-31 15:06:34,394 INFO L273 TraceCheckUtils]: 12: Hoare triple {29309#(and (<= 11 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 11))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {29310#(and (<= ULTIMATE.start_main_~i~6 12) (<= 12 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:06:34,395 INFO L273 TraceCheckUtils]: 13: Hoare triple {29310#(and (<= ULTIMATE.start_main_~i~6 12) (<= 12 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {29311#(and (<= ULTIMATE.start_main_~i~6 13) (<= 13 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:06:34,395 INFO L273 TraceCheckUtils]: 14: Hoare triple {29311#(and (<= ULTIMATE.start_main_~i~6 13) (<= 13 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {29312#(and (<= ULTIMATE.start_main_~i~6 14) (<= 14 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:06:34,396 INFO L273 TraceCheckUtils]: 15: Hoare triple {29312#(and (<= ULTIMATE.start_main_~i~6 14) (<= 14 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {29313#(and (<= 15 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 15))} is VALID [2019-01-31 15:06:34,397 INFO L273 TraceCheckUtils]: 16: Hoare triple {29313#(and (<= 15 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 15))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {29314#(and (<= 16 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 16))} is VALID [2019-01-31 15:06:34,398 INFO L273 TraceCheckUtils]: 17: Hoare triple {29314#(and (<= 16 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 16))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {29315#(and (<= ULTIMATE.start_main_~i~6 17) (<= 17 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:06:34,399 INFO L273 TraceCheckUtils]: 18: Hoare triple {29315#(and (<= ULTIMATE.start_main_~i~6 17) (<= 17 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {29316#(and (<= ULTIMATE.start_main_~i~6 18) (<= 18 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:06:34,400 INFO L273 TraceCheckUtils]: 19: Hoare triple {29316#(and (<= ULTIMATE.start_main_~i~6 18) (<= 18 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {29317#(and (<= ULTIMATE.start_main_~i~6 19) (<= 19 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:06:34,401 INFO L273 TraceCheckUtils]: 20: Hoare triple {29317#(and (<= ULTIMATE.start_main_~i~6 19) (<= 19 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {29318#(and (<= ULTIMATE.start_main_~i~6 20) (<= 20 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:06:34,402 INFO L273 TraceCheckUtils]: 21: Hoare triple {29318#(and (<= ULTIMATE.start_main_~i~6 20) (<= 20 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {29319#(and (<= ULTIMATE.start_main_~i~6 21) (<= 21 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:06:34,403 INFO L273 TraceCheckUtils]: 22: Hoare triple {29319#(and (<= ULTIMATE.start_main_~i~6 21) (<= 21 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {29320#(and (<= 22 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 22))} is VALID [2019-01-31 15:06:34,404 INFO L273 TraceCheckUtils]: 23: Hoare triple {29320#(and (<= 22 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 22))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {29321#(and (<= 23 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 23))} is VALID [2019-01-31 15:06:34,405 INFO L273 TraceCheckUtils]: 24: Hoare triple {29321#(and (<= 23 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 23))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {29322#(and (<= ULTIMATE.start_main_~i~6 24) (<= 24 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:06:34,406 INFO L273 TraceCheckUtils]: 25: Hoare triple {29322#(and (<= ULTIMATE.start_main_~i~6 24) (<= 24 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {29323#(and (<= ULTIMATE.start_main_~i~6 25) (<= 25 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:06:34,407 INFO L273 TraceCheckUtils]: 26: Hoare triple {29323#(and (<= ULTIMATE.start_main_~i~6 25) (<= 25 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {29324#(and (<= 26 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 26))} is VALID [2019-01-31 15:06:34,408 INFO L273 TraceCheckUtils]: 27: Hoare triple {29324#(and (<= 26 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 26))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {29325#(and (<= ULTIMATE.start_main_~i~6 27) (<= 27 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:06:34,408 INFO L273 TraceCheckUtils]: 28: Hoare triple {29325#(and (<= ULTIMATE.start_main_~i~6 27) (<= 27 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {29326#(and (<= ULTIMATE.start_main_~i~6 28) (<= 28 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:06:34,409 INFO L273 TraceCheckUtils]: 29: Hoare triple {29326#(and (<= ULTIMATE.start_main_~i~6 28) (<= 28 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {29327#(and (<= 29 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 29))} is VALID [2019-01-31 15:06:34,410 INFO L273 TraceCheckUtils]: 30: Hoare triple {29327#(and (<= 29 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 29))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {29328#(and (<= 30 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 30))} is VALID [2019-01-31 15:06:34,411 INFO L273 TraceCheckUtils]: 31: Hoare triple {29328#(and (<= 30 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 30))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {29329#(and (<= ULTIMATE.start_main_~i~6 31) (<= 31 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:06:34,412 INFO L273 TraceCheckUtils]: 32: Hoare triple {29329#(and (<= ULTIMATE.start_main_~i~6 31) (<= 31 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {29330#(and (<= 32 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 32))} is VALID [2019-01-31 15:06:34,413 INFO L273 TraceCheckUtils]: 33: Hoare triple {29330#(and (<= 32 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 32))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {29331#(or (not (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 1))) (and (<= 33 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 33)))} is VALID [2019-01-31 15:06:34,414 INFO L273 TraceCheckUtils]: 34: Hoare triple {29331#(or (not (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 1))) (and (<= 33 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 33)))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {29332#(or (= 34 ULTIMATE.start_main_~MAX~6) (<= (+ ULTIMATE.start_main_~i~6 1) ULTIMATE.start_main_~MAX~6))} is VALID [2019-01-31 15:06:34,415 INFO L273 TraceCheckUtils]: 35: Hoare triple {29332#(or (= 34 ULTIMATE.start_main_~MAX~6) (<= (+ ULTIMATE.start_main_~i~6 1) ULTIMATE.start_main_~MAX~6))} assume !(main_~i~6 < main_~MAX~6);main_~str1~6 := main_~str1~6[main_~MAX~6 - 1 := 0];main_~j~6 := 0;main_~i~6 := main_~MAX~6 - 1; {29333#(= (+ ULTIMATE.start_main_~j~6 34) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:06:34,416 INFO L273 TraceCheckUtils]: 36: Hoare triple {29333#(= (+ ULTIMATE.start_main_~j~6 34) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {29334#(= (+ ULTIMATE.start_main_~j~6 33) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:06:34,417 INFO L273 TraceCheckUtils]: 37: Hoare triple {29334#(= (+ ULTIMATE.start_main_~j~6 33) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {29335#(= (+ ULTIMATE.start_main_~j~6 32) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:06:34,418 INFO L273 TraceCheckUtils]: 38: Hoare triple {29335#(= (+ ULTIMATE.start_main_~j~6 32) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {29336#(= (+ ULTIMATE.start_main_~j~6 31) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:06:34,419 INFO L273 TraceCheckUtils]: 39: Hoare triple {29336#(= (+ ULTIMATE.start_main_~j~6 31) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {29337#(= (+ ULTIMATE.start_main_~j~6 30) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:06:34,420 INFO L273 TraceCheckUtils]: 40: Hoare triple {29337#(= (+ ULTIMATE.start_main_~j~6 30) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {29338#(= (+ ULTIMATE.start_main_~j~6 29) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:06:34,421 INFO L273 TraceCheckUtils]: 41: Hoare triple {29338#(= (+ ULTIMATE.start_main_~j~6 29) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {29339#(= (+ ULTIMATE.start_main_~j~6 28) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:06:34,422 INFO L273 TraceCheckUtils]: 42: Hoare triple {29339#(= (+ ULTIMATE.start_main_~j~6 28) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {29340#(= (+ ULTIMATE.start_main_~j~6 27) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:06:34,423 INFO L273 TraceCheckUtils]: 43: Hoare triple {29340#(= (+ ULTIMATE.start_main_~j~6 27) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {29341#(= (+ ULTIMATE.start_main_~j~6 26) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:06:34,424 INFO L273 TraceCheckUtils]: 44: Hoare triple {29341#(= (+ ULTIMATE.start_main_~j~6 26) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {29342#(= (+ ULTIMATE.start_main_~j~6 25) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:06:34,425 INFO L273 TraceCheckUtils]: 45: Hoare triple {29342#(= (+ ULTIMATE.start_main_~j~6 25) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {29343#(= (+ ULTIMATE.start_main_~j~6 24) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:06:34,426 INFO L273 TraceCheckUtils]: 46: Hoare triple {29343#(= (+ ULTIMATE.start_main_~j~6 24) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {29344#(= (+ ULTIMATE.start_main_~j~6 23) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:06:34,427 INFO L273 TraceCheckUtils]: 47: Hoare triple {29344#(= (+ ULTIMATE.start_main_~j~6 23) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {29345#(= (+ ULTIMATE.start_main_~j~6 22) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:06:34,428 INFO L273 TraceCheckUtils]: 48: Hoare triple {29345#(= (+ ULTIMATE.start_main_~j~6 22) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {29346#(= (+ ULTIMATE.start_main_~j~6 21) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:06:34,429 INFO L273 TraceCheckUtils]: 49: Hoare triple {29346#(= (+ ULTIMATE.start_main_~j~6 21) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {29347#(= (+ ULTIMATE.start_main_~j~6 20) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:06:34,430 INFO L273 TraceCheckUtils]: 50: Hoare triple {29347#(= (+ ULTIMATE.start_main_~j~6 20) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {29348#(= (+ ULTIMATE.start_main_~j~6 19) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:06:34,430 INFO L273 TraceCheckUtils]: 51: Hoare triple {29348#(= (+ ULTIMATE.start_main_~j~6 19) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {29349#(= (+ ULTIMATE.start_main_~j~6 18) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:06:34,431 INFO L273 TraceCheckUtils]: 52: Hoare triple {29349#(= (+ ULTIMATE.start_main_~j~6 18) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {29350#(= (+ ULTIMATE.start_main_~j~6 17) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:06:34,432 INFO L273 TraceCheckUtils]: 53: Hoare triple {29350#(= (+ ULTIMATE.start_main_~j~6 17) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {29351#(= (+ ULTIMATE.start_main_~j~6 16) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:06:34,433 INFO L273 TraceCheckUtils]: 54: Hoare triple {29351#(= (+ ULTIMATE.start_main_~j~6 16) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {29352#(= (+ ULTIMATE.start_main_~j~6 15) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:06:34,434 INFO L273 TraceCheckUtils]: 55: Hoare triple {29352#(= (+ ULTIMATE.start_main_~j~6 15) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {29353#(= (+ ULTIMATE.start_main_~j~6 14) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:06:34,435 INFO L273 TraceCheckUtils]: 56: Hoare triple {29353#(= (+ ULTIMATE.start_main_~j~6 14) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {29354#(= (+ ULTIMATE.start_main_~j~6 13) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:06:34,436 INFO L273 TraceCheckUtils]: 57: Hoare triple {29354#(= (+ ULTIMATE.start_main_~j~6 13) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {29355#(= (+ ULTIMATE.start_main_~j~6 12) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:06:34,437 INFO L273 TraceCheckUtils]: 58: Hoare triple {29355#(= (+ ULTIMATE.start_main_~j~6 12) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {29356#(= (+ ULTIMATE.start_main_~j~6 11) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:06:34,438 INFO L273 TraceCheckUtils]: 59: Hoare triple {29356#(= (+ ULTIMATE.start_main_~j~6 11) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {29357#(= (+ ULTIMATE.start_main_~j~6 10) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:06:34,439 INFO L273 TraceCheckUtils]: 60: Hoare triple {29357#(= (+ ULTIMATE.start_main_~j~6 10) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {29358#(= (+ ULTIMATE.start_main_~j~6 9) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:06:34,440 INFO L273 TraceCheckUtils]: 61: Hoare triple {29358#(= (+ ULTIMATE.start_main_~j~6 9) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {29359#(= (+ ULTIMATE.start_main_~j~6 8) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:06:34,441 INFO L273 TraceCheckUtils]: 62: Hoare triple {29359#(= (+ ULTIMATE.start_main_~j~6 8) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {29360#(= (+ ULTIMATE.start_main_~j~6 7) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:06:34,442 INFO L273 TraceCheckUtils]: 63: Hoare triple {29360#(= (+ ULTIMATE.start_main_~j~6 7) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {29361#(= (+ ULTIMATE.start_main_~j~6 6) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:06:34,443 INFO L273 TraceCheckUtils]: 64: Hoare triple {29361#(= (+ ULTIMATE.start_main_~j~6 6) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {29362#(= (+ ULTIMATE.start_main_~j~6 5) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:06:34,444 INFO L273 TraceCheckUtils]: 65: Hoare triple {29362#(= (+ ULTIMATE.start_main_~j~6 5) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {29363#(= (+ ULTIMATE.start_main_~j~6 4) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:06:34,445 INFO L273 TraceCheckUtils]: 66: Hoare triple {29363#(= (+ ULTIMATE.start_main_~j~6 4) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {29364#(= (+ ULTIMATE.start_main_~j~6 3) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:06:34,446 INFO L273 TraceCheckUtils]: 67: Hoare triple {29364#(= (+ ULTIMATE.start_main_~j~6 3) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {29365#(= (+ ULTIMATE.start_main_~j~6 2) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:06:34,446 INFO L273 TraceCheckUtils]: 68: Hoare triple {29365#(= (+ ULTIMATE.start_main_~j~6 2) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {29366#(= (+ ULTIMATE.start_main_~j~6 1) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:06:34,447 INFO L273 TraceCheckUtils]: 69: Hoare triple {29366#(= (+ ULTIMATE.start_main_~j~6 1) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {29367#(= (select ULTIMATE.start_main_~str1~6 0) (select ULTIMATE.start_main_~str2~6 (+ ULTIMATE.start_main_~MAX~6 (- 1))))} is VALID [2019-01-31 15:06:34,449 INFO L273 TraceCheckUtils]: 70: Hoare triple {29367#(= (select ULTIMATE.start_main_~str1~6 0) (select ULTIMATE.start_main_~str2~6 (+ ULTIMATE.start_main_~MAX~6 (- 1))))} assume !(main_~i~6 >= 0);main_~j~6 := main_~MAX~6 - 1;main_~i~6 := 0;assume !!(main_~i~6 < main_~MAX~6);__VERIFIER_assert_#in~cond := (if main_~str1~6[main_~i~6] == main_~str2~6[main_~j~6] then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond;assume __VERIFIER_assert_~cond == 0;assume !false; {29297#false} is VALID [2019-01-31 15:06:34,449 INFO L273 TraceCheckUtils]: 71: Hoare triple {29297#false} assume !false; {29297#false} is VALID [2019-01-31 15:06:34,457 INFO L134 CoverageAnalysis]: Checked inductivity of 1190 backedges. 0 proven. 1190 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-31 15:06:34,457 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-31 15:06:34,457 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-01-31 15:06:34,458 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-01-31 15:06:34,458 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-01-31 15:06:34,458 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-31 15:06:34,458 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 52 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 52 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-01-31 15:06:34,482 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2019-01-31 15:06:34,482 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder TERMS_WITH_SMALL_CONSTANTS_FIRST (IT: FPandBP) [2019-01-31 15:06:34,538 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-01-31 15:06:34,538 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-01-31 15:06:34,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-31 15:06:34,581 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-31 15:06:37,929 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2019-01-31 15:06:37,931 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-01-31 15:06:37,939 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-31 15:06:37,939 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:17, output treesize:16 [2019-01-31 15:06:37,941 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-01-31 15:06:37,941 WARN L398 uantifierElimination]: Input elimination task: ∃ [v_ULTIMATE.start_main_~str2~6_890]. (and (<= 34 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 35)) (= (store v_ULTIMATE.start_main_~str2~6_890 33 (select ULTIMATE.start_main_~str1~6 0)) ULTIMATE.start_main_~str2~6)) [2019-01-31 15:06:37,941 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (and (<= 34 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 35)) (= (select ULTIMATE.start_main_~str1~6 0) (select ULTIMATE.start_main_~str2~6 33))) [2019-01-31 15:06:38,048 INFO L273 TraceCheckUtils]: 0: Hoare triple {29296#true} havoc main_#res;havoc main_#t~nondet0, main_#t~nondet2, main_#t~post1, main_#t~post4, main_#t~post3, main_#t~post6, main_#t~post5, main_~MAX~6, main_~str1~6, main_~str2~6, main_~cont~6, main_~i~6, main_~j~6;main_~MAX~6 := (if main_#t~nondet0 % 4294967296 % 4294967296 <= 2147483647 then main_#t~nondet0 % 4294967296 % 4294967296 else main_#t~nondet0 % 4294967296 % 4294967296 - 4294967296);havoc main_#t~nondet0;havoc main_~str1~6;havoc main_~str2~6;havoc main_~cont~6;havoc main_~i~6;havoc main_~j~6;main_~cont~6 := 0;main_~i~6 := 0; {29296#true} is VALID [2019-01-31 15:06:38,049 INFO L273 TraceCheckUtils]: 1: Hoare triple {29296#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {29296#true} is VALID [2019-01-31 15:06:38,049 INFO L273 TraceCheckUtils]: 2: Hoare triple {29296#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {29296#true} is VALID [2019-01-31 15:06:38,049 INFO L273 TraceCheckUtils]: 3: Hoare triple {29296#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {29296#true} is VALID [2019-01-31 15:06:38,049 INFO L273 TraceCheckUtils]: 4: Hoare triple {29296#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {29296#true} is VALID [2019-01-31 15:06:38,049 INFO L273 TraceCheckUtils]: 5: Hoare triple {29296#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {29296#true} is VALID [2019-01-31 15:06:38,050 INFO L273 TraceCheckUtils]: 6: Hoare triple {29296#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {29296#true} is VALID [2019-01-31 15:06:38,050 INFO L273 TraceCheckUtils]: 7: Hoare triple {29296#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {29296#true} is VALID [2019-01-31 15:06:38,050 INFO L273 TraceCheckUtils]: 8: Hoare triple {29296#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {29296#true} is VALID [2019-01-31 15:06:38,050 INFO L273 TraceCheckUtils]: 9: Hoare triple {29296#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {29296#true} is VALID [2019-01-31 15:06:38,050 INFO L273 TraceCheckUtils]: 10: Hoare triple {29296#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {29296#true} is VALID [2019-01-31 15:06:38,050 INFO L273 TraceCheckUtils]: 11: Hoare triple {29296#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {29296#true} is VALID [2019-01-31 15:06:38,051 INFO L273 TraceCheckUtils]: 12: Hoare triple {29296#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {29296#true} is VALID [2019-01-31 15:06:38,051 INFO L273 TraceCheckUtils]: 13: Hoare triple {29296#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {29296#true} is VALID [2019-01-31 15:06:38,051 INFO L273 TraceCheckUtils]: 14: Hoare triple {29296#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {29296#true} is VALID [2019-01-31 15:06:38,051 INFO L273 TraceCheckUtils]: 15: Hoare triple {29296#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {29296#true} is VALID [2019-01-31 15:06:38,051 INFO L273 TraceCheckUtils]: 16: Hoare triple {29296#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {29296#true} is VALID [2019-01-31 15:06:38,051 INFO L273 TraceCheckUtils]: 17: Hoare triple {29296#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {29296#true} is VALID [2019-01-31 15:06:38,051 INFO L273 TraceCheckUtils]: 18: Hoare triple {29296#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {29296#true} is VALID [2019-01-31 15:06:38,051 INFO L273 TraceCheckUtils]: 19: Hoare triple {29296#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {29296#true} is VALID [2019-01-31 15:06:38,051 INFO L273 TraceCheckUtils]: 20: Hoare triple {29296#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {29296#true} is VALID [2019-01-31 15:06:38,051 INFO L273 TraceCheckUtils]: 21: Hoare triple {29296#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {29296#true} is VALID [2019-01-31 15:06:38,052 INFO L273 TraceCheckUtils]: 22: Hoare triple {29296#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {29296#true} is VALID [2019-01-31 15:06:38,052 INFO L273 TraceCheckUtils]: 23: Hoare triple {29296#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {29296#true} is VALID [2019-01-31 15:06:38,052 INFO L273 TraceCheckUtils]: 24: Hoare triple {29296#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {29296#true} is VALID [2019-01-31 15:06:38,052 INFO L273 TraceCheckUtils]: 25: Hoare triple {29296#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {29296#true} is VALID [2019-01-31 15:06:38,052 INFO L273 TraceCheckUtils]: 26: Hoare triple {29296#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {29296#true} is VALID [2019-01-31 15:06:38,052 INFO L273 TraceCheckUtils]: 27: Hoare triple {29296#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {29296#true} is VALID [2019-01-31 15:06:38,052 INFO L273 TraceCheckUtils]: 28: Hoare triple {29296#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {29296#true} is VALID [2019-01-31 15:06:38,052 INFO L273 TraceCheckUtils]: 29: Hoare triple {29296#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {29296#true} is VALID [2019-01-31 15:06:38,052 INFO L273 TraceCheckUtils]: 30: Hoare triple {29296#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {29296#true} is VALID [2019-01-31 15:06:38,052 INFO L273 TraceCheckUtils]: 31: Hoare triple {29296#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {29296#true} is VALID [2019-01-31 15:06:38,053 INFO L273 TraceCheckUtils]: 32: Hoare triple {29296#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {29296#true} is VALID [2019-01-31 15:06:38,053 INFO L273 TraceCheckUtils]: 33: Hoare triple {29296#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {29296#true} is VALID [2019-01-31 15:06:38,053 INFO L273 TraceCheckUtils]: 34: Hoare triple {29296#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {29296#true} is VALID [2019-01-31 15:06:38,053 INFO L273 TraceCheckUtils]: 35: Hoare triple {29296#true} assume !(main_~i~6 < main_~MAX~6);main_~str1~6 := main_~str1~6[main_~MAX~6 - 1 := 0];main_~j~6 := 0;main_~i~6 := main_~MAX~6 - 1; {29476#(and (= ULTIMATE.start_main_~j~6 0) (= (+ ULTIMATE.start_main_~i~6 1) ULTIMATE.start_main_~MAX~6))} is VALID [2019-01-31 15:06:38,054 INFO L273 TraceCheckUtils]: 36: Hoare triple {29476#(and (= ULTIMATE.start_main_~j~6 0) (= (+ ULTIMATE.start_main_~i~6 1) ULTIMATE.start_main_~MAX~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {29480#(and (= ULTIMATE.start_main_~j~6 1) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 2)))} is VALID [2019-01-31 15:06:38,054 INFO L273 TraceCheckUtils]: 37: Hoare triple {29480#(and (= ULTIMATE.start_main_~j~6 1) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 2)))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {29484#(and (= (+ ULTIMATE.start_main_~i~6 3) ULTIMATE.start_main_~MAX~6) (= ULTIMATE.start_main_~j~6 2))} is VALID [2019-01-31 15:06:38,055 INFO L273 TraceCheckUtils]: 38: Hoare triple {29484#(and (= (+ ULTIMATE.start_main_~i~6 3) ULTIMATE.start_main_~MAX~6) (= ULTIMATE.start_main_~j~6 2))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {29488#(and (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 4)) (= ULTIMATE.start_main_~j~6 3))} is VALID [2019-01-31 15:06:38,056 INFO L273 TraceCheckUtils]: 39: Hoare triple {29488#(and (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 4)) (= ULTIMATE.start_main_~j~6 3))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {29492#(and (= ULTIMATE.start_main_~j~6 4) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 5)))} is VALID [2019-01-31 15:06:38,056 INFO L273 TraceCheckUtils]: 40: Hoare triple {29492#(and (= ULTIMATE.start_main_~j~6 4) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 5)))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {29496#(and (= ULTIMATE.start_main_~j~6 5) (= (+ ULTIMATE.start_main_~i~6 6) ULTIMATE.start_main_~MAX~6))} is VALID [2019-01-31 15:06:38,057 INFO L273 TraceCheckUtils]: 41: Hoare triple {29496#(and (= ULTIMATE.start_main_~j~6 5) (= (+ ULTIMATE.start_main_~i~6 6) ULTIMATE.start_main_~MAX~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {29500#(and (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 7)) (= ULTIMATE.start_main_~j~6 6))} is VALID [2019-01-31 15:06:38,058 INFO L273 TraceCheckUtils]: 42: Hoare triple {29500#(and (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 7)) (= ULTIMATE.start_main_~j~6 6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {29504#(and (= ULTIMATE.start_main_~j~6 7) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 8)))} is VALID [2019-01-31 15:06:38,059 INFO L273 TraceCheckUtils]: 43: Hoare triple {29504#(and (= ULTIMATE.start_main_~j~6 7) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 8)))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {29508#(and (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 9)) (= ULTIMATE.start_main_~j~6 8))} is VALID [2019-01-31 15:06:38,060 INFO L273 TraceCheckUtils]: 44: Hoare triple {29508#(and (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 9)) (= ULTIMATE.start_main_~j~6 8))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {29512#(and (= ULTIMATE.start_main_~j~6 9) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 10)))} is VALID [2019-01-31 15:06:38,061 INFO L273 TraceCheckUtils]: 45: Hoare triple {29512#(and (= ULTIMATE.start_main_~j~6 9) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 10)))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {29516#(and (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 11)) (= ULTIMATE.start_main_~j~6 10))} is VALID [2019-01-31 15:06:38,062 INFO L273 TraceCheckUtils]: 46: Hoare triple {29516#(and (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 11)) (= ULTIMATE.start_main_~j~6 10))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {29520#(and (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 12)) (= ULTIMATE.start_main_~j~6 11))} is VALID [2019-01-31 15:06:38,063 INFO L273 TraceCheckUtils]: 47: Hoare triple {29520#(and (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 12)) (= ULTIMATE.start_main_~j~6 11))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {29524#(and (= ULTIMATE.start_main_~j~6 12) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 13)))} is VALID [2019-01-31 15:06:38,064 INFO L273 TraceCheckUtils]: 48: Hoare triple {29524#(and (= ULTIMATE.start_main_~j~6 12) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 13)))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {29528#(and (= ULTIMATE.start_main_~j~6 13) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 14)))} is VALID [2019-01-31 15:06:38,065 INFO L273 TraceCheckUtils]: 49: Hoare triple {29528#(and (= ULTIMATE.start_main_~j~6 13) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 14)))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {29532#(and (= ULTIMATE.start_main_~j~6 14) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 15)))} is VALID [2019-01-31 15:06:38,066 INFO L273 TraceCheckUtils]: 50: Hoare triple {29532#(and (= ULTIMATE.start_main_~j~6 14) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 15)))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {29536#(and (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 16)) (= ULTIMATE.start_main_~j~6 15))} is VALID [2019-01-31 15:06:38,067 INFO L273 TraceCheckUtils]: 51: Hoare triple {29536#(and (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 16)) (= ULTIMATE.start_main_~j~6 15))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {29540#(and (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 17)) (= ULTIMATE.start_main_~j~6 16))} is VALID [2019-01-31 15:06:38,068 INFO L273 TraceCheckUtils]: 52: Hoare triple {29540#(and (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 17)) (= ULTIMATE.start_main_~j~6 16))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {29544#(and (= ULTIMATE.start_main_~j~6 17) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 18)))} is VALID [2019-01-31 15:06:38,069 INFO L273 TraceCheckUtils]: 53: Hoare triple {29544#(and (= ULTIMATE.start_main_~j~6 17) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 18)))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {29548#(and (= ULTIMATE.start_main_~j~6 18) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 19)))} is VALID [2019-01-31 15:06:38,070 INFO L273 TraceCheckUtils]: 54: Hoare triple {29548#(and (= ULTIMATE.start_main_~j~6 18) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 19)))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {29552#(and (= ULTIMATE.start_main_~j~6 19) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 20)))} is VALID [2019-01-31 15:06:38,071 INFO L273 TraceCheckUtils]: 55: Hoare triple {29552#(and (= ULTIMATE.start_main_~j~6 19) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 20)))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {29556#(and (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 21)) (= ULTIMATE.start_main_~j~6 20))} is VALID [2019-01-31 15:06:38,072 INFO L273 TraceCheckUtils]: 56: Hoare triple {29556#(and (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 21)) (= ULTIMATE.start_main_~j~6 20))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {29560#(and (= ULTIMATE.start_main_~j~6 21) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 22)))} is VALID [2019-01-31 15:06:38,073 INFO L273 TraceCheckUtils]: 57: Hoare triple {29560#(and (= ULTIMATE.start_main_~j~6 21) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 22)))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {29564#(and (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 23)) (= ULTIMATE.start_main_~j~6 22))} is VALID [2019-01-31 15:06:38,074 INFO L273 TraceCheckUtils]: 58: Hoare triple {29564#(and (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 23)) (= ULTIMATE.start_main_~j~6 22))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {29568#(and (= ULTIMATE.start_main_~j~6 23) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 24)))} is VALID [2019-01-31 15:06:38,075 INFO L273 TraceCheckUtils]: 59: Hoare triple {29568#(and (= ULTIMATE.start_main_~j~6 23) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 24)))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {29572#(and (= ULTIMATE.start_main_~j~6 24) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 25)))} is VALID [2019-01-31 15:06:38,076 INFO L273 TraceCheckUtils]: 60: Hoare triple {29572#(and (= ULTIMATE.start_main_~j~6 24) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 25)))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {29576#(and (= ULTIMATE.start_main_~j~6 25) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 26)))} is VALID [2019-01-31 15:06:38,077 INFO L273 TraceCheckUtils]: 61: Hoare triple {29576#(and (= ULTIMATE.start_main_~j~6 25) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 26)))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {29580#(and (= ULTIMATE.start_main_~j~6 26) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 27)))} is VALID [2019-01-31 15:06:38,078 INFO L273 TraceCheckUtils]: 62: Hoare triple {29580#(and (= ULTIMATE.start_main_~j~6 26) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 27)))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {29584#(and (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 28)) (= ULTIMATE.start_main_~j~6 27))} is VALID [2019-01-31 15:06:38,079 INFO L273 TraceCheckUtils]: 63: Hoare triple {29584#(and (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 28)) (= ULTIMATE.start_main_~j~6 27))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {29588#(and (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 29)) (= ULTIMATE.start_main_~j~6 28))} is VALID [2019-01-31 15:06:38,080 INFO L273 TraceCheckUtils]: 64: Hoare triple {29588#(and (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 29)) (= ULTIMATE.start_main_~j~6 28))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {29592#(and (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 30)) (= ULTIMATE.start_main_~j~6 29))} is VALID [2019-01-31 15:06:38,081 INFO L273 TraceCheckUtils]: 65: Hoare triple {29592#(and (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 30)) (= ULTIMATE.start_main_~j~6 29))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {29596#(and (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 31)) (= ULTIMATE.start_main_~j~6 30))} is VALID [2019-01-31 15:06:38,082 INFO L273 TraceCheckUtils]: 66: Hoare triple {29596#(and (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 31)) (= ULTIMATE.start_main_~j~6 30))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {29600#(and (= ULTIMATE.start_main_~j~6 31) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 32)))} is VALID [2019-01-31 15:06:38,083 INFO L273 TraceCheckUtils]: 67: Hoare triple {29600#(and (= ULTIMATE.start_main_~j~6 31) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 32)))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {29604#(and (= ULTIMATE.start_main_~j~6 32) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 33)))} is VALID [2019-01-31 15:06:38,084 INFO L273 TraceCheckUtils]: 68: Hoare triple {29604#(and (= ULTIMATE.start_main_~j~6 32) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 33)))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {29608#(and (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 34)) (= ULTIMATE.start_main_~j~6 33))} is VALID [2019-01-31 15:06:38,085 INFO L273 TraceCheckUtils]: 69: Hoare triple {29608#(and (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 34)) (= ULTIMATE.start_main_~j~6 33))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {29612#(and (<= 34 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 35)) (= (select ULTIMATE.start_main_~str1~6 0) (select ULTIMATE.start_main_~str2~6 33)))} is VALID [2019-01-31 15:06:38,086 INFO L273 TraceCheckUtils]: 70: Hoare triple {29612#(and (<= 34 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 35)) (= (select ULTIMATE.start_main_~str1~6 0) (select ULTIMATE.start_main_~str2~6 33)))} assume !(main_~i~6 >= 0);main_~j~6 := main_~MAX~6 - 1;main_~i~6 := 0;assume !!(main_~i~6 < main_~MAX~6);__VERIFIER_assert_#in~cond := (if main_~str1~6[main_~i~6] == main_~str2~6[main_~j~6] then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond;assume __VERIFIER_assert_~cond == 0;assume !false; {29297#false} is VALID [2019-01-31 15:06:38,087 INFO L273 TraceCheckUtils]: 71: Hoare triple {29297#false} assume !false; {29297#false} is VALID [2019-01-31 15:06:38,094 INFO L134 CoverageAnalysis]: Checked inductivity of 1190 backedges. 0 proven. 595 refuted. 0 times theorem prover too weak. 595 trivial. 0 not checked. [2019-01-31 15:06:38,095 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2019-01-31 15:06:38,230 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 5 [2019-01-31 15:06:38,234 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-01-31 15:06:38,244 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-31 15:06:38,245 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:22, output treesize:12 [2019-01-31 15:06:42,225 INFO L273 TraceCheckUtils]: 71: Hoare triple {29297#false} assume !false; {29297#false} is VALID [2019-01-31 15:06:42,227 INFO L273 TraceCheckUtils]: 70: Hoare triple {29622#(or (= (select ULTIMATE.start_main_~str1~6 0) (select ULTIMATE.start_main_~str2~6 (+ ULTIMATE.start_main_~MAX~6 (- 1)))) (<= 0 ULTIMATE.start_main_~i~6))} assume !(main_~i~6 >= 0);main_~j~6 := main_~MAX~6 - 1;main_~i~6 := 0;assume !!(main_~i~6 < main_~MAX~6);__VERIFIER_assert_#in~cond := (if main_~str1~6[main_~i~6] == main_~str2~6[main_~j~6] then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond;assume __VERIFIER_assert_~cond == 0;assume !false; {29297#false} is VALID [2019-01-31 15:06:42,228 INFO L273 TraceCheckUtils]: 69: Hoare triple {29626#(or (< ULTIMATE.start_main_~i~6 0) (< 0 ULTIMATE.start_main_~i~6) (= (+ ULTIMATE.start_main_~j~6 1) ULTIMATE.start_main_~MAX~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {29622#(or (= (select ULTIMATE.start_main_~str1~6 0) (select ULTIMATE.start_main_~str2~6 (+ ULTIMATE.start_main_~MAX~6 (- 1)))) (<= 0 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:06:42,229 INFO L273 TraceCheckUtils]: 68: Hoare triple {29630#(or (= (+ ULTIMATE.start_main_~j~6 2) ULTIMATE.start_main_~MAX~6) (< 1 ULTIMATE.start_main_~i~6) (< ULTIMATE.start_main_~i~6 1))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {29626#(or (< ULTIMATE.start_main_~i~6 0) (< 0 ULTIMATE.start_main_~i~6) (= (+ ULTIMATE.start_main_~j~6 1) ULTIMATE.start_main_~MAX~6))} is VALID [2019-01-31 15:06:42,230 INFO L273 TraceCheckUtils]: 67: Hoare triple {29634#(or (= (+ ULTIMATE.start_main_~j~6 3) ULTIMATE.start_main_~MAX~6) (< ULTIMATE.start_main_~i~6 2) (< 2 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {29630#(or (= (+ ULTIMATE.start_main_~j~6 2) ULTIMATE.start_main_~MAX~6) (< 1 ULTIMATE.start_main_~i~6) (< ULTIMATE.start_main_~i~6 1))} is VALID [2019-01-31 15:06:42,231 INFO L273 TraceCheckUtils]: 66: Hoare triple {29638#(or (= (+ ULTIMATE.start_main_~j~6 4) ULTIMATE.start_main_~MAX~6) (< ULTIMATE.start_main_~i~6 3) (< 3 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {29634#(or (= (+ ULTIMATE.start_main_~j~6 3) ULTIMATE.start_main_~MAX~6) (< ULTIMATE.start_main_~i~6 2) (< 2 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:06:42,232 INFO L273 TraceCheckUtils]: 65: Hoare triple {29642#(or (= (+ ULTIMATE.start_main_~j~6 5) ULTIMATE.start_main_~MAX~6) (< 4 ULTIMATE.start_main_~i~6) (< ULTIMATE.start_main_~i~6 4))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {29638#(or (= (+ ULTIMATE.start_main_~j~6 4) ULTIMATE.start_main_~MAX~6) (< ULTIMATE.start_main_~i~6 3) (< 3 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:06:42,234 INFO L273 TraceCheckUtils]: 64: Hoare triple {29646#(or (< ULTIMATE.start_main_~i~6 5) (< 5 ULTIMATE.start_main_~i~6) (= (+ ULTIMATE.start_main_~j~6 6) ULTIMATE.start_main_~MAX~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {29642#(or (= (+ ULTIMATE.start_main_~j~6 5) ULTIMATE.start_main_~MAX~6) (< 4 ULTIMATE.start_main_~i~6) (< ULTIMATE.start_main_~i~6 4))} is VALID [2019-01-31 15:06:42,235 INFO L273 TraceCheckUtils]: 63: Hoare triple {29650#(or (< ULTIMATE.start_main_~i~6 6) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 7)) (< 6 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {29646#(or (< ULTIMATE.start_main_~i~6 5) (< 5 ULTIMATE.start_main_~i~6) (= (+ ULTIMATE.start_main_~j~6 6) ULTIMATE.start_main_~MAX~6))} is VALID [2019-01-31 15:06:42,236 INFO L273 TraceCheckUtils]: 62: Hoare triple {29654#(or (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 8)) (< ULTIMATE.start_main_~i~6 7) (< 7 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {29650#(or (< ULTIMATE.start_main_~i~6 6) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 7)) (< 6 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:06:42,237 INFO L273 TraceCheckUtils]: 61: Hoare triple {29658#(or (< 8 ULTIMATE.start_main_~i~6) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 9)) (< ULTIMATE.start_main_~i~6 8))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {29654#(or (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 8)) (< ULTIMATE.start_main_~i~6 7) (< 7 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:06:42,238 INFO L273 TraceCheckUtils]: 60: Hoare triple {29662#(or (< ULTIMATE.start_main_~i~6 9) (= (+ ULTIMATE.start_main_~j~6 10) ULTIMATE.start_main_~MAX~6) (< 9 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {29658#(or (< 8 ULTIMATE.start_main_~i~6) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 9)) (< ULTIMATE.start_main_~i~6 8))} is VALID [2019-01-31 15:06:42,239 INFO L273 TraceCheckUtils]: 59: Hoare triple {29666#(or (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 11)) (< 10 ULTIMATE.start_main_~i~6) (< ULTIMATE.start_main_~i~6 10))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {29662#(or (< ULTIMATE.start_main_~i~6 9) (= (+ ULTIMATE.start_main_~j~6 10) ULTIMATE.start_main_~MAX~6) (< 9 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:06:42,240 INFO L273 TraceCheckUtils]: 58: Hoare triple {29670#(or (< ULTIMATE.start_main_~i~6 11) (= (+ ULTIMATE.start_main_~j~6 12) ULTIMATE.start_main_~MAX~6) (< 11 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {29666#(or (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 11)) (< 10 ULTIMATE.start_main_~i~6) (< ULTIMATE.start_main_~i~6 10))} is VALID [2019-01-31 15:06:42,241 INFO L273 TraceCheckUtils]: 57: Hoare triple {29674#(or (< 12 ULTIMATE.start_main_~i~6) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 13)) (< ULTIMATE.start_main_~i~6 12))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {29670#(or (< ULTIMATE.start_main_~i~6 11) (= (+ ULTIMATE.start_main_~j~6 12) ULTIMATE.start_main_~MAX~6) (< 11 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:06:42,242 INFO L273 TraceCheckUtils]: 56: Hoare triple {29678#(or (< ULTIMATE.start_main_~i~6 13) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 14)) (< 13 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {29674#(or (< 12 ULTIMATE.start_main_~i~6) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 13)) (< ULTIMATE.start_main_~i~6 12))} is VALID [2019-01-31 15:06:42,243 INFO L273 TraceCheckUtils]: 55: Hoare triple {29682#(or (< 14 ULTIMATE.start_main_~i~6) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 15)) (< ULTIMATE.start_main_~i~6 14))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {29678#(or (< ULTIMATE.start_main_~i~6 13) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 14)) (< 13 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:06:42,244 INFO L273 TraceCheckUtils]: 54: Hoare triple {29686#(or (< 15 ULTIMATE.start_main_~i~6) (< ULTIMATE.start_main_~i~6 15) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 16)))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {29682#(or (< 14 ULTIMATE.start_main_~i~6) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 15)) (< ULTIMATE.start_main_~i~6 14))} is VALID [2019-01-31 15:06:42,245 INFO L273 TraceCheckUtils]: 53: Hoare triple {29690#(or (< ULTIMATE.start_main_~i~6 16) (< 16 ULTIMATE.start_main_~i~6) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 17)))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {29686#(or (< 15 ULTIMATE.start_main_~i~6) (< ULTIMATE.start_main_~i~6 15) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 16)))} is VALID [2019-01-31 15:06:42,246 INFO L273 TraceCheckUtils]: 52: Hoare triple {29694#(or (< ULTIMATE.start_main_~i~6 17) (< 17 ULTIMATE.start_main_~i~6) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 18)))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {29690#(or (< ULTIMATE.start_main_~i~6 16) (< 16 ULTIMATE.start_main_~i~6) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 17)))} is VALID [2019-01-31 15:06:42,247 INFO L273 TraceCheckUtils]: 51: Hoare triple {29698#(or (< ULTIMATE.start_main_~i~6 18) (< 18 ULTIMATE.start_main_~i~6) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 19)))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {29694#(or (< ULTIMATE.start_main_~i~6 17) (< 17 ULTIMATE.start_main_~i~6) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 18)))} is VALID [2019-01-31 15:06:42,249 INFO L273 TraceCheckUtils]: 50: Hoare triple {29702#(or (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 20)) (< 19 ULTIMATE.start_main_~i~6) (< ULTIMATE.start_main_~i~6 19))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {29698#(or (< ULTIMATE.start_main_~i~6 18) (< 18 ULTIMATE.start_main_~i~6) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 19)))} is VALID [2019-01-31 15:06:42,250 INFO L273 TraceCheckUtils]: 49: Hoare triple {29706#(or (< ULTIMATE.start_main_~i~6 20) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 21)) (< 20 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {29702#(or (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 20)) (< 19 ULTIMATE.start_main_~i~6) (< ULTIMATE.start_main_~i~6 19))} is VALID [2019-01-31 15:06:42,251 INFO L273 TraceCheckUtils]: 48: Hoare triple {29710#(or (< 21 ULTIMATE.start_main_~i~6) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 22)) (< ULTIMATE.start_main_~i~6 21))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {29706#(or (< ULTIMATE.start_main_~i~6 20) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 21)) (< 20 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:06:42,252 INFO L273 TraceCheckUtils]: 47: Hoare triple {29714#(or (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 23)) (< ULTIMATE.start_main_~i~6 22) (< 22 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {29710#(or (< 21 ULTIMATE.start_main_~i~6) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 22)) (< ULTIMATE.start_main_~i~6 21))} is VALID [2019-01-31 15:06:42,253 INFO L273 TraceCheckUtils]: 46: Hoare triple {29718#(or (< ULTIMATE.start_main_~i~6 23) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 24)) (< 23 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {29714#(or (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 23)) (< ULTIMATE.start_main_~i~6 22) (< 22 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:06:42,254 INFO L273 TraceCheckUtils]: 45: Hoare triple {29722#(or (< 24 ULTIMATE.start_main_~i~6) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 25)) (< ULTIMATE.start_main_~i~6 24))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {29718#(or (< ULTIMATE.start_main_~i~6 23) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 24)) (< 23 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:06:42,255 INFO L273 TraceCheckUtils]: 44: Hoare triple {29726#(or (< 25 ULTIMATE.start_main_~i~6) (< ULTIMATE.start_main_~i~6 25) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 26)))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {29722#(or (< 24 ULTIMATE.start_main_~i~6) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 25)) (< ULTIMATE.start_main_~i~6 24))} is VALID [2019-01-31 15:06:42,256 INFO L273 TraceCheckUtils]: 43: Hoare triple {29730#(or (< 26 ULTIMATE.start_main_~i~6) (< ULTIMATE.start_main_~i~6 26) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 27)))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {29726#(or (< 25 ULTIMATE.start_main_~i~6) (< ULTIMATE.start_main_~i~6 25) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 26)))} is VALID [2019-01-31 15:06:42,257 INFO L273 TraceCheckUtils]: 42: Hoare triple {29734#(or (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 28)) (< 27 ULTIMATE.start_main_~i~6) (< ULTIMATE.start_main_~i~6 27))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {29730#(or (< 26 ULTIMATE.start_main_~i~6) (< ULTIMATE.start_main_~i~6 26) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 27)))} is VALID [2019-01-31 15:06:42,258 INFO L273 TraceCheckUtils]: 41: Hoare triple {29738#(or (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 29)) (< 28 ULTIMATE.start_main_~i~6) (< ULTIMATE.start_main_~i~6 28))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {29734#(or (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 28)) (< 27 ULTIMATE.start_main_~i~6) (< ULTIMATE.start_main_~i~6 27))} is VALID [2019-01-31 15:06:42,259 INFO L273 TraceCheckUtils]: 40: Hoare triple {29742#(or (< 29 ULTIMATE.start_main_~i~6) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 30)) (< ULTIMATE.start_main_~i~6 29))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {29738#(or (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 29)) (< 28 ULTIMATE.start_main_~i~6) (< ULTIMATE.start_main_~i~6 28))} is VALID [2019-01-31 15:06:42,260 INFO L273 TraceCheckUtils]: 39: Hoare triple {29746#(or (< ULTIMATE.start_main_~i~6 30) (= (+ ULTIMATE.start_main_~j~6 31) ULTIMATE.start_main_~MAX~6) (< 30 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {29742#(or (< 29 ULTIMATE.start_main_~i~6) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 30)) (< ULTIMATE.start_main_~i~6 29))} is VALID [2019-01-31 15:06:42,261 INFO L273 TraceCheckUtils]: 38: Hoare triple {29750#(or (< 31 ULTIMATE.start_main_~i~6) (= (+ ULTIMATE.start_main_~j~6 32) ULTIMATE.start_main_~MAX~6) (< ULTIMATE.start_main_~i~6 31))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {29746#(or (< ULTIMATE.start_main_~i~6 30) (= (+ ULTIMATE.start_main_~j~6 31) ULTIMATE.start_main_~MAX~6) (< 30 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:06:42,262 INFO L273 TraceCheckUtils]: 37: Hoare triple {29754#(or (= (+ ULTIMATE.start_main_~j~6 33) ULTIMATE.start_main_~MAX~6) (< ULTIMATE.start_main_~i~6 32) (< 32 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {29750#(or (< 31 ULTIMATE.start_main_~i~6) (= (+ ULTIMATE.start_main_~j~6 32) ULTIMATE.start_main_~MAX~6) (< ULTIMATE.start_main_~i~6 31))} is VALID [2019-01-31 15:06:42,264 INFO L273 TraceCheckUtils]: 36: Hoare triple {29758#(or (< 33 ULTIMATE.start_main_~i~6) (< ULTIMATE.start_main_~i~6 33) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 34)))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {29754#(or (= (+ ULTIMATE.start_main_~j~6 33) ULTIMATE.start_main_~MAX~6) (< ULTIMATE.start_main_~i~6 32) (< 32 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:06:42,265 INFO L273 TraceCheckUtils]: 35: Hoare triple {29296#true} assume !(main_~i~6 < main_~MAX~6);main_~str1~6 := main_~str1~6[main_~MAX~6 - 1 := 0];main_~j~6 := 0;main_~i~6 := main_~MAX~6 - 1; {29758#(or (< 33 ULTIMATE.start_main_~i~6) (< ULTIMATE.start_main_~i~6 33) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 34)))} is VALID [2019-01-31 15:06:42,265 INFO L273 TraceCheckUtils]: 34: Hoare triple {29296#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {29296#true} is VALID [2019-01-31 15:06:42,265 INFO L273 TraceCheckUtils]: 33: Hoare triple {29296#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {29296#true} is VALID [2019-01-31 15:06:42,265 INFO L273 TraceCheckUtils]: 32: Hoare triple {29296#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {29296#true} is VALID [2019-01-31 15:06:42,265 INFO L273 TraceCheckUtils]: 31: Hoare triple {29296#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {29296#true} is VALID [2019-01-31 15:06:42,265 INFO L273 TraceCheckUtils]: 30: Hoare triple {29296#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {29296#true} is VALID [2019-01-31 15:06:42,266 INFO L273 TraceCheckUtils]: 29: Hoare triple {29296#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {29296#true} is VALID [2019-01-31 15:06:42,266 INFO L273 TraceCheckUtils]: 28: Hoare triple {29296#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {29296#true} is VALID [2019-01-31 15:06:42,266 INFO L273 TraceCheckUtils]: 27: Hoare triple {29296#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {29296#true} is VALID [2019-01-31 15:06:42,266 INFO L273 TraceCheckUtils]: 26: Hoare triple {29296#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {29296#true} is VALID [2019-01-31 15:06:42,266 INFO L273 TraceCheckUtils]: 25: Hoare triple {29296#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {29296#true} is VALID [2019-01-31 15:06:42,266 INFO L273 TraceCheckUtils]: 24: Hoare triple {29296#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {29296#true} is VALID [2019-01-31 15:06:42,266 INFO L273 TraceCheckUtils]: 23: Hoare triple {29296#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {29296#true} is VALID [2019-01-31 15:06:42,267 INFO L273 TraceCheckUtils]: 22: Hoare triple {29296#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {29296#true} is VALID [2019-01-31 15:06:42,267 INFO L273 TraceCheckUtils]: 21: Hoare triple {29296#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {29296#true} is VALID [2019-01-31 15:06:42,267 INFO L273 TraceCheckUtils]: 20: Hoare triple {29296#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {29296#true} is VALID [2019-01-31 15:06:42,267 INFO L273 TraceCheckUtils]: 19: Hoare triple {29296#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {29296#true} is VALID [2019-01-31 15:06:42,267 INFO L273 TraceCheckUtils]: 18: Hoare triple {29296#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {29296#true} is VALID [2019-01-31 15:06:42,267 INFO L273 TraceCheckUtils]: 17: Hoare triple {29296#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {29296#true} is VALID [2019-01-31 15:06:42,267 INFO L273 TraceCheckUtils]: 16: Hoare triple {29296#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {29296#true} is VALID [2019-01-31 15:06:42,267 INFO L273 TraceCheckUtils]: 15: Hoare triple {29296#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {29296#true} is VALID [2019-01-31 15:06:42,267 INFO L273 TraceCheckUtils]: 14: Hoare triple {29296#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {29296#true} is VALID [2019-01-31 15:06:42,267 INFO L273 TraceCheckUtils]: 13: Hoare triple {29296#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {29296#true} is VALID [2019-01-31 15:06:42,268 INFO L273 TraceCheckUtils]: 12: Hoare triple {29296#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {29296#true} is VALID [2019-01-31 15:06:42,268 INFO L273 TraceCheckUtils]: 11: Hoare triple {29296#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {29296#true} is VALID [2019-01-31 15:06:42,268 INFO L273 TraceCheckUtils]: 10: Hoare triple {29296#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {29296#true} is VALID [2019-01-31 15:06:42,268 INFO L273 TraceCheckUtils]: 9: Hoare triple {29296#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {29296#true} is VALID [2019-01-31 15:06:42,268 INFO L273 TraceCheckUtils]: 8: Hoare triple {29296#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {29296#true} is VALID [2019-01-31 15:06:42,268 INFO L273 TraceCheckUtils]: 7: Hoare triple {29296#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {29296#true} is VALID [2019-01-31 15:06:42,268 INFO L273 TraceCheckUtils]: 6: Hoare triple {29296#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {29296#true} is VALID [2019-01-31 15:06:42,268 INFO L273 TraceCheckUtils]: 5: Hoare triple {29296#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {29296#true} is VALID [2019-01-31 15:06:42,268 INFO L273 TraceCheckUtils]: 4: Hoare triple {29296#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {29296#true} is VALID [2019-01-31 15:06:42,268 INFO L273 TraceCheckUtils]: 3: Hoare triple {29296#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {29296#true} is VALID [2019-01-31 15:06:42,269 INFO L273 TraceCheckUtils]: 2: Hoare triple {29296#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {29296#true} is VALID [2019-01-31 15:06:42,269 INFO L273 TraceCheckUtils]: 1: Hoare triple {29296#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {29296#true} is VALID [2019-01-31 15:06:42,269 INFO L273 TraceCheckUtils]: 0: Hoare triple {29296#true} havoc main_#res;havoc main_#t~nondet0, main_#t~nondet2, main_#t~post1, main_#t~post4, main_#t~post3, main_#t~post6, main_#t~post5, main_~MAX~6, main_~str1~6, main_~str2~6, main_~cont~6, main_~i~6, main_~j~6;main_~MAX~6 := (if main_#t~nondet0 % 4294967296 % 4294967296 <= 2147483647 then main_#t~nondet0 % 4294967296 % 4294967296 else main_#t~nondet0 % 4294967296 % 4294967296 - 4294967296);havoc main_#t~nondet0;havoc main_~str1~6;havoc main_~str2~6;havoc main_~cont~6;havoc main_~i~6;havoc main_~j~6;main_~cont~6 := 0;main_~i~6 := 0; {29296#true} is VALID [2019-01-31 15:06:42,278 INFO L134 CoverageAnalysis]: Checked inductivity of 1190 backedges. 0 proven. 595 refuted. 0 times theorem prover too weak. 595 trivial. 0 not checked. [2019-01-31 15:06:42,296 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-01-31 15:06:42,296 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [71, 37, 37] total 142 [2019-01-31 15:06:42,296 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-01-31 15:06:42,296 INFO L78 Accepts]: Start accepts. Automaton has 107 states. Word has length 72 [2019-01-31 15:06:42,296 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-01-31 15:06:42,297 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 107 states. [2019-01-31 15:06:42,399 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 110 edges. 110 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-01-31 15:06:42,399 INFO L459 AbstractCegarLoop]: Interpolant automaton has 107 states [2019-01-31 15:06:42,400 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 107 interpolants. [2019-01-31 15:06:42,400 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2662, Invalid=17360, Unknown=0, NotChecked=0, Total=20022 [2019-01-31 15:06:42,401 INFO L87 Difference]: Start difference. First operand 73 states and 74 transitions. Second operand 107 states. [2019-01-31 15:07:08,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 15:07:08,503 INFO L93 Difference]: Finished difference Result 113 states and 117 transitions. [2019-01-31 15:07:08,504 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 110 states. [2019-01-31 15:07:08,504 INFO L78 Accepts]: Start accepts. Automaton has 107 states. Word has length 72 [2019-01-31 15:07:08,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-31 15:07:08,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 107 states. [2019-01-31 15:07:08,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 117 transitions. [2019-01-31 15:07:08,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 107 states. [2019-01-31 15:07:08,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 117 transitions. [2019-01-31 15:07:08,506 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 110 states and 117 transitions. [2019-01-31 15:07:08,641 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 117 edges. 117 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-01-31 15:07:08,642 INFO L225 Difference]: With dead ends: 113 [2019-01-31 15:07:08,642 INFO L226 Difference]: Without dead ends: 75 [2019-01-31 15:07:08,644 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 252 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 179 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2626 ImplicationChecksByTransitivity, 13.0s TimeCoverageRelationStatistics Valid=4225, Invalid=28355, Unknown=0, NotChecked=0, Total=32580 [2019-01-31 15:07:08,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2019-01-31 15:07:10,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 75. [2019-01-31 15:07:10,584 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-01-31 15:07:10,584 INFO L82 GeneralOperation]: Start isEquivalent. First operand 75 states. Second operand 75 states. [2019-01-31 15:07:10,585 INFO L74 IsIncluded]: Start isIncluded. First operand 75 states. Second operand 75 states. [2019-01-31 15:07:10,585 INFO L87 Difference]: Start difference. First operand 75 states. Second operand 75 states. [2019-01-31 15:07:10,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 15:07:10,586 INFO L93 Difference]: Finished difference Result 75 states and 76 transitions. [2019-01-31 15:07:10,586 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 76 transitions. [2019-01-31 15:07:10,586 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-31 15:07:10,586 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-01-31 15:07:10,587 INFO L74 IsIncluded]: Start isIncluded. First operand 75 states. Second operand 75 states. [2019-01-31 15:07:10,587 INFO L87 Difference]: Start difference. First operand 75 states. Second operand 75 states. [2019-01-31 15:07:10,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 15:07:10,588 INFO L93 Difference]: Finished difference Result 75 states and 76 transitions. [2019-01-31 15:07:10,588 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 76 transitions. [2019-01-31 15:07:10,588 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-31 15:07:10,588 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-01-31 15:07:10,589 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-01-31 15:07:10,589 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-01-31 15:07:10,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 75 states. [2019-01-31 15:07:10,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 76 transitions. [2019-01-31 15:07:10,590 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 76 transitions. Word has length 72 [2019-01-31 15:07:10,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-31 15:07:10,590 INFO L480 AbstractCegarLoop]: Abstraction has 75 states and 76 transitions. [2019-01-31 15:07:10,590 INFO L481 AbstractCegarLoop]: Interpolant automaton has 107 states. [2019-01-31 15:07:10,590 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 76 transitions. [2019-01-31 15:07:10,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2019-01-31 15:07:10,590 INFO L394 BasicCegarLoop]: Found error trace [2019-01-31 15:07:10,590 INFO L402 BasicCegarLoop]: trace histogram [35, 35, 1, 1, 1, 1] [2019-01-31 15:07:10,590 INFO L423 AbstractCegarLoop]: === Iteration 54 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2019-01-31 15:07:10,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-31 15:07:10,591 INFO L82 PathProgramCache]: Analyzing trace with hash -1198231019, now seen corresponding path program 52 times [2019-01-31 15:07:10,591 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-01-31 15:07:10,591 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-31 15:07:10,591 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-01-31 15:07:10,591 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-31 15:07:10,591 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-01-31 15:07:10,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-31 15:07:14,034 INFO L273 TraceCheckUtils]: 0: Hoare triple {30465#true} havoc main_#res;havoc main_#t~nondet0, main_#t~nondet2, main_#t~post1, main_#t~post4, main_#t~post3, main_#t~post6, main_#t~post5, main_~MAX~6, main_~str1~6, main_~str2~6, main_~cont~6, main_~i~6, main_~j~6;main_~MAX~6 := (if main_#t~nondet0 % 4294967296 % 4294967296 <= 2147483647 then main_#t~nondet0 % 4294967296 % 4294967296 else main_#t~nondet0 % 4294967296 % 4294967296 - 4294967296);havoc main_#t~nondet0;havoc main_~str1~6;havoc main_~str2~6;havoc main_~cont~6;havoc main_~i~6;havoc main_~j~6;main_~cont~6 := 0;main_~i~6 := 0; {30467#(and (<= ULTIMATE.start_main_~i~6 0) (<= 0 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:07:14,035 INFO L273 TraceCheckUtils]: 1: Hoare triple {30467#(and (<= ULTIMATE.start_main_~i~6 0) (<= 0 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {30468#(and (<= ULTIMATE.start_main_~i~6 1) (<= 1 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:07:14,036 INFO L273 TraceCheckUtils]: 2: Hoare triple {30468#(and (<= ULTIMATE.start_main_~i~6 1) (<= 1 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {30469#(and (<= ULTIMATE.start_main_~i~6 2) (<= 2 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:07:14,037 INFO L273 TraceCheckUtils]: 3: Hoare triple {30469#(and (<= ULTIMATE.start_main_~i~6 2) (<= 2 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {30470#(and (<= 3 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 3))} is VALID [2019-01-31 15:07:14,038 INFO L273 TraceCheckUtils]: 4: Hoare triple {30470#(and (<= 3 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 3))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {30471#(and (<= ULTIMATE.start_main_~i~6 4) (<= 4 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:07:14,039 INFO L273 TraceCheckUtils]: 5: Hoare triple {30471#(and (<= ULTIMATE.start_main_~i~6 4) (<= 4 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {30472#(and (<= 5 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 5))} is VALID [2019-01-31 15:07:14,040 INFO L273 TraceCheckUtils]: 6: Hoare triple {30472#(and (<= 5 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 5))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {30473#(and (<= ULTIMATE.start_main_~i~6 6) (<= 6 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:07:14,041 INFO L273 TraceCheckUtils]: 7: Hoare triple {30473#(and (<= ULTIMATE.start_main_~i~6 6) (<= 6 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {30474#(and (<= 7 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 7))} is VALID [2019-01-31 15:07:14,042 INFO L273 TraceCheckUtils]: 8: Hoare triple {30474#(and (<= 7 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 7))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {30475#(and (<= ULTIMATE.start_main_~i~6 8) (<= 8 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:07:14,043 INFO L273 TraceCheckUtils]: 9: Hoare triple {30475#(and (<= ULTIMATE.start_main_~i~6 8) (<= 8 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {30476#(and (<= ULTIMATE.start_main_~i~6 9) (<= 9 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:07:14,044 INFO L273 TraceCheckUtils]: 10: Hoare triple {30476#(and (<= ULTIMATE.start_main_~i~6 9) (<= 9 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {30477#(and (<= ULTIMATE.start_main_~i~6 10) (<= 10 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:07:14,044 INFO L273 TraceCheckUtils]: 11: Hoare triple {30477#(and (<= ULTIMATE.start_main_~i~6 10) (<= 10 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {30478#(and (<= 11 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 11))} is VALID [2019-01-31 15:07:14,045 INFO L273 TraceCheckUtils]: 12: Hoare triple {30478#(and (<= 11 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 11))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {30479#(and (<= ULTIMATE.start_main_~i~6 12) (<= 12 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:07:14,046 INFO L273 TraceCheckUtils]: 13: Hoare triple {30479#(and (<= ULTIMATE.start_main_~i~6 12) (<= 12 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {30480#(and (<= ULTIMATE.start_main_~i~6 13) (<= 13 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:07:14,047 INFO L273 TraceCheckUtils]: 14: Hoare triple {30480#(and (<= ULTIMATE.start_main_~i~6 13) (<= 13 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {30481#(and (<= ULTIMATE.start_main_~i~6 14) (<= 14 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:07:14,048 INFO L273 TraceCheckUtils]: 15: Hoare triple {30481#(and (<= ULTIMATE.start_main_~i~6 14) (<= 14 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {30482#(and (<= 15 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 15))} is VALID [2019-01-31 15:07:14,049 INFO L273 TraceCheckUtils]: 16: Hoare triple {30482#(and (<= 15 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 15))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {30483#(and (<= 16 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 16))} is VALID [2019-01-31 15:07:14,050 INFO L273 TraceCheckUtils]: 17: Hoare triple {30483#(and (<= 16 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 16))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {30484#(and (<= ULTIMATE.start_main_~i~6 17) (<= 17 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:07:14,051 INFO L273 TraceCheckUtils]: 18: Hoare triple {30484#(and (<= ULTIMATE.start_main_~i~6 17) (<= 17 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {30485#(and (<= ULTIMATE.start_main_~i~6 18) (<= 18 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:07:14,052 INFO L273 TraceCheckUtils]: 19: Hoare triple {30485#(and (<= ULTIMATE.start_main_~i~6 18) (<= 18 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {30486#(and (<= ULTIMATE.start_main_~i~6 19) (<= 19 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:07:14,053 INFO L273 TraceCheckUtils]: 20: Hoare triple {30486#(and (<= ULTIMATE.start_main_~i~6 19) (<= 19 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {30487#(and (<= ULTIMATE.start_main_~i~6 20) (<= 20 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:07:14,054 INFO L273 TraceCheckUtils]: 21: Hoare triple {30487#(and (<= ULTIMATE.start_main_~i~6 20) (<= 20 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {30488#(and (<= ULTIMATE.start_main_~i~6 21) (<= 21 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:07:14,055 INFO L273 TraceCheckUtils]: 22: Hoare triple {30488#(and (<= ULTIMATE.start_main_~i~6 21) (<= 21 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {30489#(and (<= 22 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 22))} is VALID [2019-01-31 15:07:14,056 INFO L273 TraceCheckUtils]: 23: Hoare triple {30489#(and (<= 22 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 22))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {30490#(and (<= 23 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 23))} is VALID [2019-01-31 15:07:14,057 INFO L273 TraceCheckUtils]: 24: Hoare triple {30490#(and (<= 23 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 23))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {30491#(and (<= ULTIMATE.start_main_~i~6 24) (<= 24 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:07:14,057 INFO L273 TraceCheckUtils]: 25: Hoare triple {30491#(and (<= ULTIMATE.start_main_~i~6 24) (<= 24 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {30492#(and (<= ULTIMATE.start_main_~i~6 25) (<= 25 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:07:14,058 INFO L273 TraceCheckUtils]: 26: Hoare triple {30492#(and (<= ULTIMATE.start_main_~i~6 25) (<= 25 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {30493#(and (<= 26 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 26))} is VALID [2019-01-31 15:07:14,059 INFO L273 TraceCheckUtils]: 27: Hoare triple {30493#(and (<= 26 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 26))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {30494#(and (<= ULTIMATE.start_main_~i~6 27) (<= 27 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:07:14,060 INFO L273 TraceCheckUtils]: 28: Hoare triple {30494#(and (<= ULTIMATE.start_main_~i~6 27) (<= 27 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {30495#(and (<= ULTIMATE.start_main_~i~6 28) (<= 28 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:07:14,061 INFO L273 TraceCheckUtils]: 29: Hoare triple {30495#(and (<= ULTIMATE.start_main_~i~6 28) (<= 28 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {30496#(and (<= 29 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 29))} is VALID [2019-01-31 15:07:14,062 INFO L273 TraceCheckUtils]: 30: Hoare triple {30496#(and (<= 29 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 29))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {30497#(and (<= 30 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 30))} is VALID [2019-01-31 15:07:14,063 INFO L273 TraceCheckUtils]: 31: Hoare triple {30497#(and (<= 30 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 30))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {30498#(and (<= ULTIMATE.start_main_~i~6 31) (<= 31 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:07:14,064 INFO L273 TraceCheckUtils]: 32: Hoare triple {30498#(and (<= ULTIMATE.start_main_~i~6 31) (<= 31 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {30499#(and (<= 32 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 32))} is VALID [2019-01-31 15:07:14,065 INFO L273 TraceCheckUtils]: 33: Hoare triple {30499#(and (<= 32 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 32))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {30500#(and (<= 33 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 33))} is VALID [2019-01-31 15:07:14,066 INFO L273 TraceCheckUtils]: 34: Hoare triple {30500#(and (<= 33 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 33))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {30501#(or (and (<= ULTIMATE.start_main_~i~6 34) (<= 34 ULTIMATE.start_main_~i~6)) (not (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 1))))} is VALID [2019-01-31 15:07:14,067 INFO L273 TraceCheckUtils]: 35: Hoare triple {30501#(or (and (<= ULTIMATE.start_main_~i~6 34) (<= 34 ULTIMATE.start_main_~i~6)) (not (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 1))))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {30502#(or (<= (+ ULTIMATE.start_main_~i~6 1) ULTIMATE.start_main_~MAX~6) (= 35 ULTIMATE.start_main_~MAX~6))} is VALID [2019-01-31 15:07:14,068 INFO L273 TraceCheckUtils]: 36: Hoare triple {30502#(or (<= (+ ULTIMATE.start_main_~i~6 1) ULTIMATE.start_main_~MAX~6) (= 35 ULTIMATE.start_main_~MAX~6))} assume !(main_~i~6 < main_~MAX~6);main_~str1~6 := main_~str1~6[main_~MAX~6 - 1 := 0];main_~j~6 := 0;main_~i~6 := main_~MAX~6 - 1; {30503#(= (+ ULTIMATE.start_main_~j~6 35) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:07:14,069 INFO L273 TraceCheckUtils]: 37: Hoare triple {30503#(= (+ ULTIMATE.start_main_~j~6 35) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {30504#(= (+ ULTIMATE.start_main_~j~6 34) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:07:14,070 INFO L273 TraceCheckUtils]: 38: Hoare triple {30504#(= (+ ULTIMATE.start_main_~j~6 34) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {30505#(= (+ ULTIMATE.start_main_~j~6 33) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:07:14,071 INFO L273 TraceCheckUtils]: 39: Hoare triple {30505#(= (+ ULTIMATE.start_main_~j~6 33) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {30506#(= (+ ULTIMATE.start_main_~j~6 32) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:07:14,072 INFO L273 TraceCheckUtils]: 40: Hoare triple {30506#(= (+ ULTIMATE.start_main_~j~6 32) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {30507#(= (+ ULTIMATE.start_main_~j~6 31) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:07:14,073 INFO L273 TraceCheckUtils]: 41: Hoare triple {30507#(= (+ ULTIMATE.start_main_~j~6 31) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {30508#(= (+ ULTIMATE.start_main_~j~6 30) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:07:14,074 INFO L273 TraceCheckUtils]: 42: Hoare triple {30508#(= (+ ULTIMATE.start_main_~j~6 30) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {30509#(= (+ ULTIMATE.start_main_~j~6 29) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:07:14,075 INFO L273 TraceCheckUtils]: 43: Hoare triple {30509#(= (+ ULTIMATE.start_main_~j~6 29) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {30510#(= (+ ULTIMATE.start_main_~j~6 28) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:07:14,076 INFO L273 TraceCheckUtils]: 44: Hoare triple {30510#(= (+ ULTIMATE.start_main_~j~6 28) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {30511#(= (+ ULTIMATE.start_main_~j~6 27) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:07:14,077 INFO L273 TraceCheckUtils]: 45: Hoare triple {30511#(= (+ ULTIMATE.start_main_~j~6 27) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {30512#(= (+ ULTIMATE.start_main_~j~6 26) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:07:14,077 INFO L273 TraceCheckUtils]: 46: Hoare triple {30512#(= (+ ULTIMATE.start_main_~j~6 26) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {30513#(= (+ ULTIMATE.start_main_~j~6 25) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:07:14,078 INFO L273 TraceCheckUtils]: 47: Hoare triple {30513#(= (+ ULTIMATE.start_main_~j~6 25) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {30514#(= (+ ULTIMATE.start_main_~j~6 24) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:07:14,079 INFO L273 TraceCheckUtils]: 48: Hoare triple {30514#(= (+ ULTIMATE.start_main_~j~6 24) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {30515#(= (+ ULTIMATE.start_main_~j~6 23) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:07:14,080 INFO L273 TraceCheckUtils]: 49: Hoare triple {30515#(= (+ ULTIMATE.start_main_~j~6 23) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {30516#(= (+ ULTIMATE.start_main_~j~6 22) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:07:14,081 INFO L273 TraceCheckUtils]: 50: Hoare triple {30516#(= (+ ULTIMATE.start_main_~j~6 22) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {30517#(= (+ ULTIMATE.start_main_~j~6 21) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:07:14,082 INFO L273 TraceCheckUtils]: 51: Hoare triple {30517#(= (+ ULTIMATE.start_main_~j~6 21) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {30518#(= (+ ULTIMATE.start_main_~j~6 20) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:07:14,083 INFO L273 TraceCheckUtils]: 52: Hoare triple {30518#(= (+ ULTIMATE.start_main_~j~6 20) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {30519#(= (+ ULTIMATE.start_main_~j~6 19) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:07:14,084 INFO L273 TraceCheckUtils]: 53: Hoare triple {30519#(= (+ ULTIMATE.start_main_~j~6 19) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {30520#(= (+ ULTIMATE.start_main_~j~6 18) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:07:14,085 INFO L273 TraceCheckUtils]: 54: Hoare triple {30520#(= (+ ULTIMATE.start_main_~j~6 18) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {30521#(= (+ ULTIMATE.start_main_~j~6 17) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:07:14,086 INFO L273 TraceCheckUtils]: 55: Hoare triple {30521#(= (+ ULTIMATE.start_main_~j~6 17) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {30522#(= (+ ULTIMATE.start_main_~j~6 16) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:07:14,087 INFO L273 TraceCheckUtils]: 56: Hoare triple {30522#(= (+ ULTIMATE.start_main_~j~6 16) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {30523#(= (+ ULTIMATE.start_main_~j~6 15) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:07:14,088 INFO L273 TraceCheckUtils]: 57: Hoare triple {30523#(= (+ ULTIMATE.start_main_~j~6 15) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {30524#(= (+ ULTIMATE.start_main_~j~6 14) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:07:14,089 INFO L273 TraceCheckUtils]: 58: Hoare triple {30524#(= (+ ULTIMATE.start_main_~j~6 14) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {30525#(= (+ ULTIMATE.start_main_~j~6 13) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:07:14,090 INFO L273 TraceCheckUtils]: 59: Hoare triple {30525#(= (+ ULTIMATE.start_main_~j~6 13) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {30526#(= (+ ULTIMATE.start_main_~j~6 12) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:07:14,091 INFO L273 TraceCheckUtils]: 60: Hoare triple {30526#(= (+ ULTIMATE.start_main_~j~6 12) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {30527#(= (+ ULTIMATE.start_main_~j~6 11) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:07:14,092 INFO L273 TraceCheckUtils]: 61: Hoare triple {30527#(= (+ ULTIMATE.start_main_~j~6 11) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {30528#(= (+ ULTIMATE.start_main_~j~6 10) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:07:14,093 INFO L273 TraceCheckUtils]: 62: Hoare triple {30528#(= (+ ULTIMATE.start_main_~j~6 10) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {30529#(= (+ ULTIMATE.start_main_~j~6 9) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:07:14,093 INFO L273 TraceCheckUtils]: 63: Hoare triple {30529#(= (+ ULTIMATE.start_main_~j~6 9) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {30530#(= (+ ULTIMATE.start_main_~j~6 8) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:07:14,094 INFO L273 TraceCheckUtils]: 64: Hoare triple {30530#(= (+ ULTIMATE.start_main_~j~6 8) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {30531#(= (+ ULTIMATE.start_main_~j~6 7) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:07:14,095 INFO L273 TraceCheckUtils]: 65: Hoare triple {30531#(= (+ ULTIMATE.start_main_~j~6 7) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {30532#(= (+ ULTIMATE.start_main_~j~6 6) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:07:14,096 INFO L273 TraceCheckUtils]: 66: Hoare triple {30532#(= (+ ULTIMATE.start_main_~j~6 6) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {30533#(= (+ ULTIMATE.start_main_~j~6 5) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:07:14,097 INFO L273 TraceCheckUtils]: 67: Hoare triple {30533#(= (+ ULTIMATE.start_main_~j~6 5) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {30534#(= (+ ULTIMATE.start_main_~j~6 4) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:07:14,098 INFO L273 TraceCheckUtils]: 68: Hoare triple {30534#(= (+ ULTIMATE.start_main_~j~6 4) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {30535#(= (+ ULTIMATE.start_main_~j~6 3) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:07:14,099 INFO L273 TraceCheckUtils]: 69: Hoare triple {30535#(= (+ ULTIMATE.start_main_~j~6 3) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {30536#(= (+ ULTIMATE.start_main_~j~6 2) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:07:14,100 INFO L273 TraceCheckUtils]: 70: Hoare triple {30536#(= (+ ULTIMATE.start_main_~j~6 2) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {30537#(= (+ ULTIMATE.start_main_~j~6 1) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:07:14,101 INFO L273 TraceCheckUtils]: 71: Hoare triple {30537#(= (+ ULTIMATE.start_main_~j~6 1) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {30538#(= (select ULTIMATE.start_main_~str1~6 0) (select ULTIMATE.start_main_~str2~6 (+ ULTIMATE.start_main_~MAX~6 (- 1))))} is VALID [2019-01-31 15:07:14,102 INFO L273 TraceCheckUtils]: 72: Hoare triple {30538#(= (select ULTIMATE.start_main_~str1~6 0) (select ULTIMATE.start_main_~str2~6 (+ ULTIMATE.start_main_~MAX~6 (- 1))))} assume !(main_~i~6 >= 0);main_~j~6 := main_~MAX~6 - 1;main_~i~6 := 0;assume !!(main_~i~6 < main_~MAX~6);__VERIFIER_assert_#in~cond := (if main_~str1~6[main_~i~6] == main_~str2~6[main_~j~6] then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond;assume __VERIFIER_assert_~cond == 0;assume !false; {30466#false} is VALID [2019-01-31 15:07:14,102 INFO L273 TraceCheckUtils]: 73: Hoare triple {30466#false} assume !false; {30466#false} is VALID [2019-01-31 15:07:14,111 INFO L134 CoverageAnalysis]: Checked inductivity of 1260 backedges. 0 proven. 1260 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-31 15:07:14,111 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-31 15:07:14,111 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-01-31 15:07:14,111 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-01-31 15:07:14,111 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-01-31 15:07:14,111 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-31 15:07:14,111 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 53 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 53 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-01-31 15:07:14,121 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-31 15:07:14,121 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2019-01-31 15:07:14,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-31 15:07:14,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-31 15:07:14,216 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-31 15:07:17,720 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2019-01-31 15:07:17,722 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-01-31 15:07:17,728 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-31 15:07:17,728 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:15, output treesize:14 [2019-01-31 15:07:17,731 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-01-31 15:07:17,731 WARN L398 uantifierElimination]: Input elimination task: ∃ [v_ULTIMATE.start_main_~str2~6_925]. (and (= (store v_ULTIMATE.start_main_~str2~6_925 34 (select ULTIMATE.start_main_~str1~6 0)) ULTIMATE.start_main_~str2~6) (<= 35 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 35)) [2019-01-31 15:07:17,731 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= (select ULTIMATE.start_main_~str2~6 34) (select ULTIMATE.start_main_~str1~6 0)) (<= 35 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 35)) [2019-01-31 15:07:17,835 INFO L273 TraceCheckUtils]: 0: Hoare triple {30465#true} havoc main_#res;havoc main_#t~nondet0, main_#t~nondet2, main_#t~post1, main_#t~post4, main_#t~post3, main_#t~post6, main_#t~post5, main_~MAX~6, main_~str1~6, main_~str2~6, main_~cont~6, main_~i~6, main_~j~6;main_~MAX~6 := (if main_#t~nondet0 % 4294967296 % 4294967296 <= 2147483647 then main_#t~nondet0 % 4294967296 % 4294967296 else main_#t~nondet0 % 4294967296 % 4294967296 - 4294967296);havoc main_#t~nondet0;havoc main_~str1~6;havoc main_~str2~6;havoc main_~cont~6;havoc main_~i~6;havoc main_~j~6;main_~cont~6 := 0;main_~i~6 := 0; {30467#(and (<= ULTIMATE.start_main_~i~6 0) (<= 0 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:07:17,836 INFO L273 TraceCheckUtils]: 1: Hoare triple {30467#(and (<= ULTIMATE.start_main_~i~6 0) (<= 0 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {30468#(and (<= ULTIMATE.start_main_~i~6 1) (<= 1 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:07:17,837 INFO L273 TraceCheckUtils]: 2: Hoare triple {30468#(and (<= ULTIMATE.start_main_~i~6 1) (<= 1 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {30469#(and (<= ULTIMATE.start_main_~i~6 2) (<= 2 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:07:17,838 INFO L273 TraceCheckUtils]: 3: Hoare triple {30469#(and (<= ULTIMATE.start_main_~i~6 2) (<= 2 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {30470#(and (<= 3 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 3))} is VALID [2019-01-31 15:07:17,839 INFO L273 TraceCheckUtils]: 4: Hoare triple {30470#(and (<= 3 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 3))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {30471#(and (<= ULTIMATE.start_main_~i~6 4) (<= 4 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:07:17,840 INFO L273 TraceCheckUtils]: 5: Hoare triple {30471#(and (<= ULTIMATE.start_main_~i~6 4) (<= 4 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {30472#(and (<= 5 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 5))} is VALID [2019-01-31 15:07:17,840 INFO L273 TraceCheckUtils]: 6: Hoare triple {30472#(and (<= 5 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 5))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {30473#(and (<= ULTIMATE.start_main_~i~6 6) (<= 6 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:07:17,841 INFO L273 TraceCheckUtils]: 7: Hoare triple {30473#(and (<= ULTIMATE.start_main_~i~6 6) (<= 6 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {30474#(and (<= 7 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 7))} is VALID [2019-01-31 15:07:17,842 INFO L273 TraceCheckUtils]: 8: Hoare triple {30474#(and (<= 7 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 7))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {30475#(and (<= ULTIMATE.start_main_~i~6 8) (<= 8 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:07:17,843 INFO L273 TraceCheckUtils]: 9: Hoare triple {30475#(and (<= ULTIMATE.start_main_~i~6 8) (<= 8 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {30476#(and (<= ULTIMATE.start_main_~i~6 9) (<= 9 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:07:17,844 INFO L273 TraceCheckUtils]: 10: Hoare triple {30476#(and (<= ULTIMATE.start_main_~i~6 9) (<= 9 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {30477#(and (<= ULTIMATE.start_main_~i~6 10) (<= 10 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:07:17,845 INFO L273 TraceCheckUtils]: 11: Hoare triple {30477#(and (<= ULTIMATE.start_main_~i~6 10) (<= 10 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {30478#(and (<= 11 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 11))} is VALID [2019-01-31 15:07:17,846 INFO L273 TraceCheckUtils]: 12: Hoare triple {30478#(and (<= 11 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 11))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {30479#(and (<= ULTIMATE.start_main_~i~6 12) (<= 12 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:07:17,847 INFO L273 TraceCheckUtils]: 13: Hoare triple {30479#(and (<= ULTIMATE.start_main_~i~6 12) (<= 12 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {30480#(and (<= ULTIMATE.start_main_~i~6 13) (<= 13 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:07:17,848 INFO L273 TraceCheckUtils]: 14: Hoare triple {30480#(and (<= ULTIMATE.start_main_~i~6 13) (<= 13 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {30481#(and (<= ULTIMATE.start_main_~i~6 14) (<= 14 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:07:17,849 INFO L273 TraceCheckUtils]: 15: Hoare triple {30481#(and (<= ULTIMATE.start_main_~i~6 14) (<= 14 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {30482#(and (<= 15 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 15))} is VALID [2019-01-31 15:07:17,850 INFO L273 TraceCheckUtils]: 16: Hoare triple {30482#(and (<= 15 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 15))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {30483#(and (<= 16 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 16))} is VALID [2019-01-31 15:07:17,851 INFO L273 TraceCheckUtils]: 17: Hoare triple {30483#(and (<= 16 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 16))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {30484#(and (<= ULTIMATE.start_main_~i~6 17) (<= 17 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:07:17,852 INFO L273 TraceCheckUtils]: 18: Hoare triple {30484#(and (<= ULTIMATE.start_main_~i~6 17) (<= 17 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {30485#(and (<= ULTIMATE.start_main_~i~6 18) (<= 18 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:07:17,853 INFO L273 TraceCheckUtils]: 19: Hoare triple {30485#(and (<= ULTIMATE.start_main_~i~6 18) (<= 18 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {30486#(and (<= ULTIMATE.start_main_~i~6 19) (<= 19 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:07:17,854 INFO L273 TraceCheckUtils]: 20: Hoare triple {30486#(and (<= ULTIMATE.start_main_~i~6 19) (<= 19 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {30487#(and (<= ULTIMATE.start_main_~i~6 20) (<= 20 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:07:17,854 INFO L273 TraceCheckUtils]: 21: Hoare triple {30487#(and (<= ULTIMATE.start_main_~i~6 20) (<= 20 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {30488#(and (<= ULTIMATE.start_main_~i~6 21) (<= 21 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:07:17,855 INFO L273 TraceCheckUtils]: 22: Hoare triple {30488#(and (<= ULTIMATE.start_main_~i~6 21) (<= 21 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {30489#(and (<= 22 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 22))} is VALID [2019-01-31 15:07:17,856 INFO L273 TraceCheckUtils]: 23: Hoare triple {30489#(and (<= 22 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 22))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {30490#(and (<= 23 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 23))} is VALID [2019-01-31 15:07:17,857 INFO L273 TraceCheckUtils]: 24: Hoare triple {30490#(and (<= 23 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 23))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {30491#(and (<= ULTIMATE.start_main_~i~6 24) (<= 24 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:07:17,858 INFO L273 TraceCheckUtils]: 25: Hoare triple {30491#(and (<= ULTIMATE.start_main_~i~6 24) (<= 24 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {30492#(and (<= ULTIMATE.start_main_~i~6 25) (<= 25 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:07:17,859 INFO L273 TraceCheckUtils]: 26: Hoare triple {30492#(and (<= ULTIMATE.start_main_~i~6 25) (<= 25 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {30493#(and (<= 26 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 26))} is VALID [2019-01-31 15:07:17,860 INFO L273 TraceCheckUtils]: 27: Hoare triple {30493#(and (<= 26 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 26))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {30494#(and (<= ULTIMATE.start_main_~i~6 27) (<= 27 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:07:17,861 INFO L273 TraceCheckUtils]: 28: Hoare triple {30494#(and (<= ULTIMATE.start_main_~i~6 27) (<= 27 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {30495#(and (<= ULTIMATE.start_main_~i~6 28) (<= 28 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:07:17,862 INFO L273 TraceCheckUtils]: 29: Hoare triple {30495#(and (<= ULTIMATE.start_main_~i~6 28) (<= 28 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {30496#(and (<= 29 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 29))} is VALID [2019-01-31 15:07:17,863 INFO L273 TraceCheckUtils]: 30: Hoare triple {30496#(and (<= 29 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 29))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {30497#(and (<= 30 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 30))} is VALID [2019-01-31 15:07:17,864 INFO L273 TraceCheckUtils]: 31: Hoare triple {30497#(and (<= 30 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 30))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {30498#(and (<= ULTIMATE.start_main_~i~6 31) (<= 31 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:07:17,865 INFO L273 TraceCheckUtils]: 32: Hoare triple {30498#(and (<= ULTIMATE.start_main_~i~6 31) (<= 31 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {30499#(and (<= 32 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 32))} is VALID [2019-01-31 15:07:17,866 INFO L273 TraceCheckUtils]: 33: Hoare triple {30499#(and (<= 32 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 32))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {30500#(and (<= 33 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 33))} is VALID [2019-01-31 15:07:17,869 INFO L273 TraceCheckUtils]: 34: Hoare triple {30500#(and (<= 33 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 33))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {30644#(and (<= ULTIMATE.start_main_~i~6 34) (<= 34 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:07:17,869 INFO L273 TraceCheckUtils]: 35: Hoare triple {30644#(and (<= ULTIMATE.start_main_~i~6 34) (<= 34 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {30648#(and (<= ULTIMATE.start_main_~i~6 35) (<= 35 ULTIMATE.start_main_~MAX~6))} is VALID [2019-01-31 15:07:17,870 INFO L273 TraceCheckUtils]: 36: Hoare triple {30648#(and (<= ULTIMATE.start_main_~i~6 35) (<= 35 ULTIMATE.start_main_~MAX~6))} assume !(main_~i~6 < main_~MAX~6);main_~str1~6 := main_~str1~6[main_~MAX~6 - 1 := 0];main_~j~6 := 0;main_~i~6 := main_~MAX~6 - 1; {30652#(and (= ULTIMATE.start_main_~j~6 0) (<= 35 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 35))} is VALID [2019-01-31 15:07:17,870 INFO L273 TraceCheckUtils]: 37: Hoare triple {30652#(and (= ULTIMATE.start_main_~j~6 0) (<= 35 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 35))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {30656#(and (= ULTIMATE.start_main_~j~6 1) (<= 35 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 35))} is VALID [2019-01-31 15:07:17,871 INFO L273 TraceCheckUtils]: 38: Hoare triple {30656#(and (= ULTIMATE.start_main_~j~6 1) (<= 35 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 35))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {30660#(and (<= 35 ULTIMATE.start_main_~MAX~6) (= ULTIMATE.start_main_~j~6 2) (<= ULTIMATE.start_main_~MAX~6 35))} is VALID [2019-01-31 15:07:17,871 INFO L273 TraceCheckUtils]: 39: Hoare triple {30660#(and (<= 35 ULTIMATE.start_main_~MAX~6) (= ULTIMATE.start_main_~j~6 2) (<= ULTIMATE.start_main_~MAX~6 35))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {30664#(and (= ULTIMATE.start_main_~j~6 3) (<= 35 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 35))} is VALID [2019-01-31 15:07:17,872 INFO L273 TraceCheckUtils]: 40: Hoare triple {30664#(and (= ULTIMATE.start_main_~j~6 3) (<= 35 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 35))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {30668#(and (= ULTIMATE.start_main_~j~6 4) (<= 35 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 35))} is VALID [2019-01-31 15:07:17,873 INFO L273 TraceCheckUtils]: 41: Hoare triple {30668#(and (= ULTIMATE.start_main_~j~6 4) (<= 35 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 35))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {30672#(and (= ULTIMATE.start_main_~j~6 5) (<= 35 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 35))} is VALID [2019-01-31 15:07:17,874 INFO L273 TraceCheckUtils]: 42: Hoare triple {30672#(and (= ULTIMATE.start_main_~j~6 5) (<= 35 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 35))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {30676#(and (<= 35 ULTIMATE.start_main_~MAX~6) (= ULTIMATE.start_main_~j~6 6) (<= ULTIMATE.start_main_~MAX~6 35))} is VALID [2019-01-31 15:07:17,874 INFO L273 TraceCheckUtils]: 43: Hoare triple {30676#(and (<= 35 ULTIMATE.start_main_~MAX~6) (= ULTIMATE.start_main_~j~6 6) (<= ULTIMATE.start_main_~MAX~6 35))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {30680#(and (= ULTIMATE.start_main_~j~6 7) (<= 35 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 35))} is VALID [2019-01-31 15:07:17,875 INFO L273 TraceCheckUtils]: 44: Hoare triple {30680#(and (= ULTIMATE.start_main_~j~6 7) (<= 35 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 35))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {30684#(and (= ULTIMATE.start_main_~j~6 8) (<= 35 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 35))} is VALID [2019-01-31 15:07:17,876 INFO L273 TraceCheckUtils]: 45: Hoare triple {30684#(and (= ULTIMATE.start_main_~j~6 8) (<= 35 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 35))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {30688#(and (= ULTIMATE.start_main_~j~6 9) (<= 35 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 35))} is VALID [2019-01-31 15:07:17,877 INFO L273 TraceCheckUtils]: 46: Hoare triple {30688#(and (= ULTIMATE.start_main_~j~6 9) (<= 35 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 35))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {30692#(and (= ULTIMATE.start_main_~j~6 10) (<= 35 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 35))} is VALID [2019-01-31 15:07:17,878 INFO L273 TraceCheckUtils]: 47: Hoare triple {30692#(and (= ULTIMATE.start_main_~j~6 10) (<= 35 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 35))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {30696#(and (<= 35 ULTIMATE.start_main_~MAX~6) (= ULTIMATE.start_main_~j~6 11) (<= ULTIMATE.start_main_~MAX~6 35))} is VALID [2019-01-31 15:07:17,879 INFO L273 TraceCheckUtils]: 48: Hoare triple {30696#(and (<= 35 ULTIMATE.start_main_~MAX~6) (= ULTIMATE.start_main_~j~6 11) (<= ULTIMATE.start_main_~MAX~6 35))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {30700#(and (= ULTIMATE.start_main_~j~6 12) (<= 35 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 35))} is VALID [2019-01-31 15:07:17,879 INFO L273 TraceCheckUtils]: 49: Hoare triple {30700#(and (= ULTIMATE.start_main_~j~6 12) (<= 35 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 35))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {30704#(and (= ULTIMATE.start_main_~j~6 13) (<= 35 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 35))} is VALID [2019-01-31 15:07:17,880 INFO L273 TraceCheckUtils]: 50: Hoare triple {30704#(and (= ULTIMATE.start_main_~j~6 13) (<= 35 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 35))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {30708#(and (= ULTIMATE.start_main_~j~6 14) (<= 35 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 35))} is VALID [2019-01-31 15:07:17,881 INFO L273 TraceCheckUtils]: 51: Hoare triple {30708#(and (= ULTIMATE.start_main_~j~6 14) (<= 35 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 35))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {30712#(and (<= 35 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 35) (= ULTIMATE.start_main_~j~6 15))} is VALID [2019-01-31 15:07:17,882 INFO L273 TraceCheckUtils]: 52: Hoare triple {30712#(and (<= 35 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 35) (= ULTIMATE.start_main_~j~6 15))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {30716#(and (= ULTIMATE.start_main_~j~6 16) (<= 35 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 35))} is VALID [2019-01-31 15:07:17,882 INFO L273 TraceCheckUtils]: 53: Hoare triple {30716#(and (= ULTIMATE.start_main_~j~6 16) (<= 35 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 35))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {30720#(and (= ULTIMATE.start_main_~j~6 17) (<= 35 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 35))} is VALID [2019-01-31 15:07:17,883 INFO L273 TraceCheckUtils]: 54: Hoare triple {30720#(and (= ULTIMATE.start_main_~j~6 17) (<= 35 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 35))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {30724#(and (= ULTIMATE.start_main_~j~6 18) (<= 35 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 35))} is VALID [2019-01-31 15:07:17,884 INFO L273 TraceCheckUtils]: 55: Hoare triple {30724#(and (= ULTIMATE.start_main_~j~6 18) (<= 35 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 35))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {30728#(and (= ULTIMATE.start_main_~j~6 19) (<= 35 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 35))} is VALID [2019-01-31 15:07:17,885 INFO L273 TraceCheckUtils]: 56: Hoare triple {30728#(and (= ULTIMATE.start_main_~j~6 19) (<= 35 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 35))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {30732#(and (= ULTIMATE.start_main_~j~6 20) (<= 35 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 35))} is VALID [2019-01-31 15:07:17,885 INFO L273 TraceCheckUtils]: 57: Hoare triple {30732#(and (= ULTIMATE.start_main_~j~6 20) (<= 35 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 35))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {30736#(and (= ULTIMATE.start_main_~j~6 21) (<= 35 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 35))} is VALID [2019-01-31 15:07:17,886 INFO L273 TraceCheckUtils]: 58: Hoare triple {30736#(and (= ULTIMATE.start_main_~j~6 21) (<= 35 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 35))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {30740#(and (<= 35 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 35) (= ULTIMATE.start_main_~j~6 22))} is VALID [2019-01-31 15:07:17,887 INFO L273 TraceCheckUtils]: 59: Hoare triple {30740#(and (<= 35 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 35) (= ULTIMATE.start_main_~j~6 22))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {30744#(and (<= 35 ULTIMATE.start_main_~MAX~6) (= ULTIMATE.start_main_~j~6 23) (<= ULTIMATE.start_main_~MAX~6 35))} is VALID [2019-01-31 15:07:17,888 INFO L273 TraceCheckUtils]: 60: Hoare triple {30744#(and (<= 35 ULTIMATE.start_main_~MAX~6) (= ULTIMATE.start_main_~j~6 23) (<= ULTIMATE.start_main_~MAX~6 35))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {30748#(and (= ULTIMATE.start_main_~j~6 24) (<= 35 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 35))} is VALID [2019-01-31 15:07:17,889 INFO L273 TraceCheckUtils]: 61: Hoare triple {30748#(and (= ULTIMATE.start_main_~j~6 24) (<= 35 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 35))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {30752#(and (= ULTIMATE.start_main_~j~6 25) (<= 35 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 35))} is VALID [2019-01-31 15:07:17,889 INFO L273 TraceCheckUtils]: 62: Hoare triple {30752#(and (= ULTIMATE.start_main_~j~6 25) (<= 35 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 35))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {30756#(and (= ULTIMATE.start_main_~j~6 26) (<= 35 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 35))} is VALID [2019-01-31 15:07:17,890 INFO L273 TraceCheckUtils]: 63: Hoare triple {30756#(and (= ULTIMATE.start_main_~j~6 26) (<= 35 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 35))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {30760#(and (= ULTIMATE.start_main_~j~6 27) (<= 35 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 35))} is VALID [2019-01-31 15:07:17,891 INFO L273 TraceCheckUtils]: 64: Hoare triple {30760#(and (= ULTIMATE.start_main_~j~6 27) (<= 35 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 35))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {30764#(and (<= 35 ULTIMATE.start_main_~MAX~6) (= ULTIMATE.start_main_~j~6 28) (<= ULTIMATE.start_main_~MAX~6 35))} is VALID [2019-01-31 15:07:17,892 INFO L273 TraceCheckUtils]: 65: Hoare triple {30764#(and (<= 35 ULTIMATE.start_main_~MAX~6) (= ULTIMATE.start_main_~j~6 28) (<= ULTIMATE.start_main_~MAX~6 35))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {30768#(and (<= 35 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 35) (= ULTIMATE.start_main_~j~6 29))} is VALID [2019-01-31 15:07:17,893 INFO L273 TraceCheckUtils]: 66: Hoare triple {30768#(and (<= 35 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 35) (= ULTIMATE.start_main_~j~6 29))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {30772#(and (= ULTIMATE.start_main_~j~6 30) (<= 35 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 35))} is VALID [2019-01-31 15:07:17,894 INFO L273 TraceCheckUtils]: 67: Hoare triple {30772#(and (= ULTIMATE.start_main_~j~6 30) (<= 35 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 35))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {30776#(and (= ULTIMATE.start_main_~j~6 31) (<= 35 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 35))} is VALID [2019-01-31 15:07:17,894 INFO L273 TraceCheckUtils]: 68: Hoare triple {30776#(and (= ULTIMATE.start_main_~j~6 31) (<= 35 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 35))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {30780#(and (= ULTIMATE.start_main_~j~6 32) (<= 35 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 35))} is VALID [2019-01-31 15:07:17,895 INFO L273 TraceCheckUtils]: 69: Hoare triple {30780#(and (= ULTIMATE.start_main_~j~6 32) (<= 35 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 35))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {30784#(and (= ULTIMATE.start_main_~j~6 33) (<= 35 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 35))} is VALID [2019-01-31 15:07:17,896 INFO L273 TraceCheckUtils]: 70: Hoare triple {30784#(and (= ULTIMATE.start_main_~j~6 33) (<= 35 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 35))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {30788#(and (<= 35 ULTIMATE.start_main_~MAX~6) (= ULTIMATE.start_main_~j~6 34) (<= ULTIMATE.start_main_~MAX~6 35))} is VALID [2019-01-31 15:07:17,897 INFO L273 TraceCheckUtils]: 71: Hoare triple {30788#(and (<= 35 ULTIMATE.start_main_~MAX~6) (= ULTIMATE.start_main_~j~6 34) (<= ULTIMATE.start_main_~MAX~6 35))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {30792#(and (= (select ULTIMATE.start_main_~str2~6 34) (select ULTIMATE.start_main_~str1~6 0)) (<= 35 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 35))} is VALID [2019-01-31 15:07:17,898 INFO L273 TraceCheckUtils]: 72: Hoare triple {30792#(and (= (select ULTIMATE.start_main_~str2~6 34) (select ULTIMATE.start_main_~str1~6 0)) (<= 35 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 35))} assume !(main_~i~6 >= 0);main_~j~6 := main_~MAX~6 - 1;main_~i~6 := 0;assume !!(main_~i~6 < main_~MAX~6);__VERIFIER_assert_#in~cond := (if main_~str1~6[main_~i~6] == main_~str2~6[main_~j~6] then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond;assume __VERIFIER_assert_~cond == 0;assume !false; {30466#false} is VALID [2019-01-31 15:07:17,898 INFO L273 TraceCheckUtils]: 73: Hoare triple {30466#false} assume !false; {30466#false} is VALID [2019-01-31 15:07:17,909 INFO L134 CoverageAnalysis]: Checked inductivity of 1260 backedges. 0 proven. 1260 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-31 15:07:17,909 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2019-01-31 15:07:17,937 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 5 [2019-01-31 15:07:17,939 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-01-31 15:07:17,942 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-31 15:07:17,943 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:14, output treesize:5 [2019-01-31 15:07:17,945 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-01-31 15:07:17,945 WARN L398 uantifierElimination]: Input elimination task: ∀ [ULTIMATE.start_main_~str2~6, ULTIMATE.start_main_~str1~6]. (let ((.cse0 (select ULTIMATE.start_main_~str1~6 0))) (= .cse0 (select (store ULTIMATE.start_main_~str2~6 ULTIMATE.start_main_~j~6 .cse0) (+ ULTIMATE.start_main_~MAX~6 (- 1))))) [2019-01-31 15:07:17,945 WARN L399 uantifierElimination]: ElimStorePlain result: ∀ []. (= (+ ULTIMATE.start_main_~j~6 1) ULTIMATE.start_main_~MAX~6) [2019-01-31 15:07:19,281 INFO L273 TraceCheckUtils]: 73: Hoare triple {30466#false} assume !false; {30466#false} is VALID [2019-01-31 15:07:19,282 INFO L273 TraceCheckUtils]: 72: Hoare triple {30538#(= (select ULTIMATE.start_main_~str1~6 0) (select ULTIMATE.start_main_~str2~6 (+ ULTIMATE.start_main_~MAX~6 (- 1))))} assume !(main_~i~6 >= 0);main_~j~6 := main_~MAX~6 - 1;main_~i~6 := 0;assume !!(main_~i~6 < main_~MAX~6);__VERIFIER_assert_#in~cond := (if main_~str1~6[main_~i~6] == main_~str2~6[main_~j~6] then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond;assume __VERIFIER_assert_~cond == 0;assume !false; {30466#false} is VALID [2019-01-31 15:07:19,283 INFO L273 TraceCheckUtils]: 71: Hoare triple {30537#(= (+ ULTIMATE.start_main_~j~6 1) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {30538#(= (select ULTIMATE.start_main_~str1~6 0) (select ULTIMATE.start_main_~str2~6 (+ ULTIMATE.start_main_~MAX~6 (- 1))))} is VALID [2019-01-31 15:07:19,284 INFO L273 TraceCheckUtils]: 70: Hoare triple {30536#(= (+ ULTIMATE.start_main_~j~6 2) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {30537#(= (+ ULTIMATE.start_main_~j~6 1) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:07:19,285 INFO L273 TraceCheckUtils]: 69: Hoare triple {30535#(= (+ ULTIMATE.start_main_~j~6 3) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {30536#(= (+ ULTIMATE.start_main_~j~6 2) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:07:19,286 INFO L273 TraceCheckUtils]: 68: Hoare triple {30534#(= (+ ULTIMATE.start_main_~j~6 4) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {30535#(= (+ ULTIMATE.start_main_~j~6 3) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:07:19,287 INFO L273 TraceCheckUtils]: 67: Hoare triple {30533#(= (+ ULTIMATE.start_main_~j~6 5) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {30534#(= (+ ULTIMATE.start_main_~j~6 4) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:07:19,288 INFO L273 TraceCheckUtils]: 66: Hoare triple {30532#(= (+ ULTIMATE.start_main_~j~6 6) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {30533#(= (+ ULTIMATE.start_main_~j~6 5) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:07:19,289 INFO L273 TraceCheckUtils]: 65: Hoare triple {30531#(= (+ ULTIMATE.start_main_~j~6 7) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {30532#(= (+ ULTIMATE.start_main_~j~6 6) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:07:19,290 INFO L273 TraceCheckUtils]: 64: Hoare triple {30530#(= (+ ULTIMATE.start_main_~j~6 8) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {30531#(= (+ ULTIMATE.start_main_~j~6 7) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:07:19,291 INFO L273 TraceCheckUtils]: 63: Hoare triple {30529#(= (+ ULTIMATE.start_main_~j~6 9) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {30530#(= (+ ULTIMATE.start_main_~j~6 8) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:07:19,292 INFO L273 TraceCheckUtils]: 62: Hoare triple {30528#(= (+ ULTIMATE.start_main_~j~6 10) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {30529#(= (+ ULTIMATE.start_main_~j~6 9) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:07:19,293 INFO L273 TraceCheckUtils]: 61: Hoare triple {30527#(= (+ ULTIMATE.start_main_~j~6 11) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {30528#(= (+ ULTIMATE.start_main_~j~6 10) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:07:19,294 INFO L273 TraceCheckUtils]: 60: Hoare triple {30526#(= (+ ULTIMATE.start_main_~j~6 12) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {30527#(= (+ ULTIMATE.start_main_~j~6 11) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:07:19,295 INFO L273 TraceCheckUtils]: 59: Hoare triple {30525#(= (+ ULTIMATE.start_main_~j~6 13) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {30526#(= (+ ULTIMATE.start_main_~j~6 12) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:07:19,296 INFO L273 TraceCheckUtils]: 58: Hoare triple {30524#(= (+ ULTIMATE.start_main_~j~6 14) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {30525#(= (+ ULTIMATE.start_main_~j~6 13) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:07:19,297 INFO L273 TraceCheckUtils]: 57: Hoare triple {30523#(= (+ ULTIMATE.start_main_~j~6 15) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {30524#(= (+ ULTIMATE.start_main_~j~6 14) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:07:19,297 INFO L273 TraceCheckUtils]: 56: Hoare triple {30522#(= (+ ULTIMATE.start_main_~j~6 16) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {30523#(= (+ ULTIMATE.start_main_~j~6 15) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:07:19,298 INFO L273 TraceCheckUtils]: 55: Hoare triple {30521#(= (+ ULTIMATE.start_main_~j~6 17) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {30522#(= (+ ULTIMATE.start_main_~j~6 16) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:07:19,299 INFO L273 TraceCheckUtils]: 54: Hoare triple {30520#(= (+ ULTIMATE.start_main_~j~6 18) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {30521#(= (+ ULTIMATE.start_main_~j~6 17) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:07:19,300 INFO L273 TraceCheckUtils]: 53: Hoare triple {30519#(= (+ ULTIMATE.start_main_~j~6 19) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {30520#(= (+ ULTIMATE.start_main_~j~6 18) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:07:19,301 INFO L273 TraceCheckUtils]: 52: Hoare triple {30518#(= (+ ULTIMATE.start_main_~j~6 20) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {30519#(= (+ ULTIMATE.start_main_~j~6 19) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:07:19,302 INFO L273 TraceCheckUtils]: 51: Hoare triple {30517#(= (+ ULTIMATE.start_main_~j~6 21) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {30518#(= (+ ULTIMATE.start_main_~j~6 20) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:07:19,303 INFO L273 TraceCheckUtils]: 50: Hoare triple {30516#(= (+ ULTIMATE.start_main_~j~6 22) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {30517#(= (+ ULTIMATE.start_main_~j~6 21) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:07:19,304 INFO L273 TraceCheckUtils]: 49: Hoare triple {30515#(= (+ ULTIMATE.start_main_~j~6 23) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {30516#(= (+ ULTIMATE.start_main_~j~6 22) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:07:19,305 INFO L273 TraceCheckUtils]: 48: Hoare triple {30514#(= (+ ULTIMATE.start_main_~j~6 24) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {30515#(= (+ ULTIMATE.start_main_~j~6 23) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:07:19,306 INFO L273 TraceCheckUtils]: 47: Hoare triple {30513#(= (+ ULTIMATE.start_main_~j~6 25) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {30514#(= (+ ULTIMATE.start_main_~j~6 24) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:07:19,307 INFO L273 TraceCheckUtils]: 46: Hoare triple {30512#(= (+ ULTIMATE.start_main_~j~6 26) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {30513#(= (+ ULTIMATE.start_main_~j~6 25) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:07:19,308 INFO L273 TraceCheckUtils]: 45: Hoare triple {30511#(= (+ ULTIMATE.start_main_~j~6 27) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {30512#(= (+ ULTIMATE.start_main_~j~6 26) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:07:19,309 INFO L273 TraceCheckUtils]: 44: Hoare triple {30510#(= (+ ULTIMATE.start_main_~j~6 28) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {30511#(= (+ ULTIMATE.start_main_~j~6 27) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:07:19,310 INFO L273 TraceCheckUtils]: 43: Hoare triple {30509#(= (+ ULTIMATE.start_main_~j~6 29) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {30510#(= (+ ULTIMATE.start_main_~j~6 28) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:07:19,311 INFO L273 TraceCheckUtils]: 42: Hoare triple {30508#(= (+ ULTIMATE.start_main_~j~6 30) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {30509#(= (+ ULTIMATE.start_main_~j~6 29) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:07:19,312 INFO L273 TraceCheckUtils]: 41: Hoare triple {30507#(= (+ ULTIMATE.start_main_~j~6 31) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {30508#(= (+ ULTIMATE.start_main_~j~6 30) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:07:19,312 INFO L273 TraceCheckUtils]: 40: Hoare triple {30506#(= (+ ULTIMATE.start_main_~j~6 32) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {30507#(= (+ ULTIMATE.start_main_~j~6 31) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:07:19,313 INFO L273 TraceCheckUtils]: 39: Hoare triple {30505#(= (+ ULTIMATE.start_main_~j~6 33) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {30506#(= (+ ULTIMATE.start_main_~j~6 32) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:07:19,314 INFO L273 TraceCheckUtils]: 38: Hoare triple {30504#(= (+ ULTIMATE.start_main_~j~6 34) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {30505#(= (+ ULTIMATE.start_main_~j~6 33) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:07:19,315 INFO L273 TraceCheckUtils]: 37: Hoare triple {30503#(= (+ ULTIMATE.start_main_~j~6 35) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {30504#(= (+ ULTIMATE.start_main_~j~6 34) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:07:19,316 INFO L273 TraceCheckUtils]: 36: Hoare triple {30502#(or (<= (+ ULTIMATE.start_main_~i~6 1) ULTIMATE.start_main_~MAX~6) (= 35 ULTIMATE.start_main_~MAX~6))} assume !(main_~i~6 < main_~MAX~6);main_~str1~6 := main_~str1~6[main_~MAX~6 - 1 := 0];main_~j~6 := 0;main_~i~6 := main_~MAX~6 - 1; {30503#(= (+ ULTIMATE.start_main_~j~6 35) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:07:19,317 INFO L273 TraceCheckUtils]: 35: Hoare triple {30644#(and (<= ULTIMATE.start_main_~i~6 34) (<= 34 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {30502#(or (<= (+ ULTIMATE.start_main_~i~6 1) ULTIMATE.start_main_~MAX~6) (= 35 ULTIMATE.start_main_~MAX~6))} is VALID [2019-01-31 15:07:19,318 INFO L273 TraceCheckUtils]: 34: Hoare triple {30500#(and (<= 33 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 33))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {30644#(and (<= ULTIMATE.start_main_~i~6 34) (<= 34 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:07:19,319 INFO L273 TraceCheckUtils]: 33: Hoare triple {30499#(and (<= 32 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 32))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {30500#(and (<= 33 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 33))} is VALID [2019-01-31 15:07:19,320 INFO L273 TraceCheckUtils]: 32: Hoare triple {30498#(and (<= ULTIMATE.start_main_~i~6 31) (<= 31 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {30499#(and (<= 32 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 32))} is VALID [2019-01-31 15:07:19,321 INFO L273 TraceCheckUtils]: 31: Hoare triple {30497#(and (<= 30 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 30))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {30498#(and (<= ULTIMATE.start_main_~i~6 31) (<= 31 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:07:19,322 INFO L273 TraceCheckUtils]: 30: Hoare triple {30496#(and (<= 29 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 29))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {30497#(and (<= 30 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 30))} is VALID [2019-01-31 15:07:19,323 INFO L273 TraceCheckUtils]: 29: Hoare triple {30495#(and (<= ULTIMATE.start_main_~i~6 28) (<= 28 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {30496#(and (<= 29 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 29))} is VALID [2019-01-31 15:07:19,324 INFO L273 TraceCheckUtils]: 28: Hoare triple {30494#(and (<= ULTIMATE.start_main_~i~6 27) (<= 27 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {30495#(and (<= ULTIMATE.start_main_~i~6 28) (<= 28 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:07:19,325 INFO L273 TraceCheckUtils]: 27: Hoare triple {30493#(and (<= 26 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 26))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {30494#(and (<= ULTIMATE.start_main_~i~6 27) (<= 27 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:07:19,326 INFO L273 TraceCheckUtils]: 26: Hoare triple {30492#(and (<= ULTIMATE.start_main_~i~6 25) (<= 25 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {30493#(and (<= 26 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 26))} is VALID [2019-01-31 15:07:19,327 INFO L273 TraceCheckUtils]: 25: Hoare triple {30491#(and (<= ULTIMATE.start_main_~i~6 24) (<= 24 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {30492#(and (<= ULTIMATE.start_main_~i~6 25) (<= 25 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:07:19,328 INFO L273 TraceCheckUtils]: 24: Hoare triple {30490#(and (<= 23 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 23))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {30491#(and (<= ULTIMATE.start_main_~i~6 24) (<= 24 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:07:19,328 INFO L273 TraceCheckUtils]: 23: Hoare triple {30489#(and (<= 22 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 22))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {30490#(and (<= 23 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 23))} is VALID [2019-01-31 15:07:19,329 INFO L273 TraceCheckUtils]: 22: Hoare triple {30488#(and (<= ULTIMATE.start_main_~i~6 21) (<= 21 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {30489#(and (<= 22 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 22))} is VALID [2019-01-31 15:07:19,330 INFO L273 TraceCheckUtils]: 21: Hoare triple {30487#(and (<= ULTIMATE.start_main_~i~6 20) (<= 20 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {30488#(and (<= ULTIMATE.start_main_~i~6 21) (<= 21 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:07:19,331 INFO L273 TraceCheckUtils]: 20: Hoare triple {30486#(and (<= ULTIMATE.start_main_~i~6 19) (<= 19 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {30487#(and (<= ULTIMATE.start_main_~i~6 20) (<= 20 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:07:19,332 INFO L273 TraceCheckUtils]: 19: Hoare triple {30485#(and (<= ULTIMATE.start_main_~i~6 18) (<= 18 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {30486#(and (<= ULTIMATE.start_main_~i~6 19) (<= 19 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:07:19,333 INFO L273 TraceCheckUtils]: 18: Hoare triple {30484#(and (<= ULTIMATE.start_main_~i~6 17) (<= 17 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {30485#(and (<= ULTIMATE.start_main_~i~6 18) (<= 18 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:07:19,334 INFO L273 TraceCheckUtils]: 17: Hoare triple {30483#(and (<= 16 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 16))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {30484#(and (<= ULTIMATE.start_main_~i~6 17) (<= 17 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:07:19,335 INFO L273 TraceCheckUtils]: 16: Hoare triple {30482#(and (<= 15 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 15))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {30483#(and (<= 16 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 16))} is VALID [2019-01-31 15:07:19,336 INFO L273 TraceCheckUtils]: 15: Hoare triple {30481#(and (<= ULTIMATE.start_main_~i~6 14) (<= 14 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {30482#(and (<= 15 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 15))} is VALID [2019-01-31 15:07:19,337 INFO L273 TraceCheckUtils]: 14: Hoare triple {30480#(and (<= ULTIMATE.start_main_~i~6 13) (<= 13 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {30481#(and (<= ULTIMATE.start_main_~i~6 14) (<= 14 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:07:19,338 INFO L273 TraceCheckUtils]: 13: Hoare triple {30479#(and (<= ULTIMATE.start_main_~i~6 12) (<= 12 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {30480#(and (<= ULTIMATE.start_main_~i~6 13) (<= 13 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:07:19,339 INFO L273 TraceCheckUtils]: 12: Hoare triple {30478#(and (<= 11 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 11))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {30479#(and (<= ULTIMATE.start_main_~i~6 12) (<= 12 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:07:19,340 INFO L273 TraceCheckUtils]: 11: Hoare triple {30477#(and (<= ULTIMATE.start_main_~i~6 10) (<= 10 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {30478#(and (<= 11 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 11))} is VALID [2019-01-31 15:07:19,341 INFO L273 TraceCheckUtils]: 10: Hoare triple {30476#(and (<= ULTIMATE.start_main_~i~6 9) (<= 9 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {30477#(and (<= ULTIMATE.start_main_~i~6 10) (<= 10 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:07:19,342 INFO L273 TraceCheckUtils]: 9: Hoare triple {30475#(and (<= ULTIMATE.start_main_~i~6 8) (<= 8 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {30476#(and (<= ULTIMATE.start_main_~i~6 9) (<= 9 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:07:19,343 INFO L273 TraceCheckUtils]: 8: Hoare triple {30474#(and (<= 7 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 7))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {30475#(and (<= ULTIMATE.start_main_~i~6 8) (<= 8 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:07:19,343 INFO L273 TraceCheckUtils]: 7: Hoare triple {30473#(and (<= ULTIMATE.start_main_~i~6 6) (<= 6 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {30474#(and (<= 7 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 7))} is VALID [2019-01-31 15:07:19,344 INFO L273 TraceCheckUtils]: 6: Hoare triple {30472#(and (<= 5 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 5))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {30473#(and (<= ULTIMATE.start_main_~i~6 6) (<= 6 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:07:19,345 INFO L273 TraceCheckUtils]: 5: Hoare triple {30471#(and (<= ULTIMATE.start_main_~i~6 4) (<= 4 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {30472#(and (<= 5 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 5))} is VALID [2019-01-31 15:07:19,346 INFO L273 TraceCheckUtils]: 4: Hoare triple {30470#(and (<= 3 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 3))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {30471#(and (<= ULTIMATE.start_main_~i~6 4) (<= 4 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:07:19,347 INFO L273 TraceCheckUtils]: 3: Hoare triple {30469#(and (<= ULTIMATE.start_main_~i~6 2) (<= 2 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {30470#(and (<= 3 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 3))} is VALID [2019-01-31 15:07:19,348 INFO L273 TraceCheckUtils]: 2: Hoare triple {30468#(and (<= ULTIMATE.start_main_~i~6 1) (<= 1 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {30469#(and (<= ULTIMATE.start_main_~i~6 2) (<= 2 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:07:19,349 INFO L273 TraceCheckUtils]: 1: Hoare triple {30467#(and (<= ULTIMATE.start_main_~i~6 0) (<= 0 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {30468#(and (<= ULTIMATE.start_main_~i~6 1) (<= 1 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:07:19,350 INFO L273 TraceCheckUtils]: 0: Hoare triple {30465#true} havoc main_#res;havoc main_#t~nondet0, main_#t~nondet2, main_#t~post1, main_#t~post4, main_#t~post3, main_#t~post6, main_#t~post5, main_~MAX~6, main_~str1~6, main_~str2~6, main_~cont~6, main_~i~6, main_~j~6;main_~MAX~6 := (if main_#t~nondet0 % 4294967296 % 4294967296 <= 2147483647 then main_#t~nondet0 % 4294967296 % 4294967296 else main_#t~nondet0 % 4294967296 % 4294967296 - 4294967296);havoc main_#t~nondet0;havoc main_~str1~6;havoc main_~str2~6;havoc main_~cont~6;havoc main_~i~6;havoc main_~j~6;main_~cont~6 := 0;main_~i~6 := 0; {30467#(and (<= ULTIMATE.start_main_~i~6 0) (<= 0 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:07:19,359 INFO L134 CoverageAnalysis]: Checked inductivity of 1260 backedges. 0 proven. 1260 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-31 15:07:19,378 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-01-31 15:07:19,378 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [73, 73, 73] total 111 [2019-01-31 15:07:19,378 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-01-31 15:07:19,379 INFO L78 Accepts]: Start accepts. Automaton has 112 states. Word has length 74 [2019-01-31 15:07:19,379 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-01-31 15:07:19,379 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 112 states. [2019-01-31 15:07:19,484 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 113 edges. 113 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-01-31 15:07:19,484 INFO L459 AbstractCegarLoop]: Interpolant automaton has 112 states [2019-01-31 15:07:19,484 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 112 interpolants. [2019-01-31 15:07:19,485 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=331, Invalid=12101, Unknown=0, NotChecked=0, Total=12432 [2019-01-31 15:07:19,485 INFO L87 Difference]: Start difference. First operand 75 states and 76 transitions. Second operand 112 states. [2019-01-31 15:07:41,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 15:07:41,894 INFO L93 Difference]: Finished difference Result 114 states and 116 transitions. [2019-01-31 15:07:41,895 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 77 states. [2019-01-31 15:07:41,895 INFO L78 Accepts]: Start accepts. Automaton has 112 states. Word has length 74 [2019-01-31 15:07:41,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-31 15:07:41,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 112 states. [2019-01-31 15:07:41,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 82 transitions. [2019-01-31 15:07:41,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 112 states. [2019-01-31 15:07:41,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 82 transitions. [2019-01-31 15:07:41,897 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 77 states and 82 transitions. [2019-01-31 15:07:41,987 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 82 edges. 82 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-01-31 15:07:41,988 INFO L225 Difference]: With dead ends: 114 [2019-01-31 15:07:41,988 INFO L226 Difference]: Without dead ends: 76 [2019-01-31 15:07:41,989 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 257 GetRequests, 83 SyntacticMatches, 26 SemanticMatches, 148 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3645 ImplicationChecksByTransitivity, 10.1s TimeCoverageRelationStatistics Valid=700, Invalid=21650, Unknown=0, NotChecked=0, Total=22350 [2019-01-31 15:07:41,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2019-01-31 15:07:44,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 76. [2019-01-31 15:07:44,407 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-01-31 15:07:44,407 INFO L82 GeneralOperation]: Start isEquivalent. First operand 76 states. Second operand 76 states. [2019-01-31 15:07:44,408 INFO L74 IsIncluded]: Start isIncluded. First operand 76 states. Second operand 76 states. [2019-01-31 15:07:44,408 INFO L87 Difference]: Start difference. First operand 76 states. Second operand 76 states. [2019-01-31 15:07:44,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 15:07:44,409 INFO L93 Difference]: Finished difference Result 76 states and 77 transitions. [2019-01-31 15:07:44,409 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 77 transitions. [2019-01-31 15:07:44,409 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-31 15:07:44,409 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-01-31 15:07:44,410 INFO L74 IsIncluded]: Start isIncluded. First operand 76 states. Second operand 76 states. [2019-01-31 15:07:44,410 INFO L87 Difference]: Start difference. First operand 76 states. Second operand 76 states. [2019-01-31 15:07:44,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 15:07:44,411 INFO L93 Difference]: Finished difference Result 76 states and 77 transitions. [2019-01-31 15:07:44,411 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 77 transitions. [2019-01-31 15:07:44,411 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-31 15:07:44,411 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-01-31 15:07:44,412 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-01-31 15:07:44,412 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-01-31 15:07:44,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76 states. [2019-01-31 15:07:44,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 77 transitions. [2019-01-31 15:07:44,413 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 77 transitions. Word has length 74 [2019-01-31 15:07:44,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-31 15:07:44,413 INFO L480 AbstractCegarLoop]: Abstraction has 76 states and 77 transitions. [2019-01-31 15:07:44,413 INFO L481 AbstractCegarLoop]: Interpolant automaton has 112 states. [2019-01-31 15:07:44,413 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 77 transitions. [2019-01-31 15:07:44,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2019-01-31 15:07:44,413 INFO L394 BasicCegarLoop]: Found error trace [2019-01-31 15:07:44,413 INFO L402 BasicCegarLoop]: trace histogram [36, 35, 1, 1, 1, 1] [2019-01-31 15:07:44,414 INFO L423 AbstractCegarLoop]: === Iteration 55 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2019-01-31 15:07:44,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-31 15:07:44,414 INFO L82 PathProgramCache]: Analyzing trace with hash -2146155380, now seen corresponding path program 53 times [2019-01-31 15:07:44,414 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-01-31 15:07:44,414 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-31 15:07:44,415 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-31 15:07:44,415 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-31 15:07:44,415 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-01-31 15:07:44,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-31 15:07:45,764 INFO L273 TraceCheckUtils]: 0: Hoare triple {31620#true} havoc main_#res;havoc main_#t~nondet0, main_#t~nondet2, main_#t~post1, main_#t~post4, main_#t~post3, main_#t~post6, main_#t~post5, main_~MAX~6, main_~str1~6, main_~str2~6, main_~cont~6, main_~i~6, main_~j~6;main_~MAX~6 := (if main_#t~nondet0 % 4294967296 % 4294967296 <= 2147483647 then main_#t~nondet0 % 4294967296 % 4294967296 else main_#t~nondet0 % 4294967296 % 4294967296 - 4294967296);havoc main_#t~nondet0;havoc main_~str1~6;havoc main_~str2~6;havoc main_~cont~6;havoc main_~i~6;havoc main_~j~6;main_~cont~6 := 0;main_~i~6 := 0; {31622#(<= 0 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:07:45,765 INFO L273 TraceCheckUtils]: 1: Hoare triple {31622#(<= 0 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {31623#(<= 1 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:07:45,766 INFO L273 TraceCheckUtils]: 2: Hoare triple {31623#(<= 1 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {31624#(<= 2 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:07:45,767 INFO L273 TraceCheckUtils]: 3: Hoare triple {31624#(<= 2 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {31625#(<= 3 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:07:45,768 INFO L273 TraceCheckUtils]: 4: Hoare triple {31625#(<= 3 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {31626#(<= 4 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:07:45,769 INFO L273 TraceCheckUtils]: 5: Hoare triple {31626#(<= 4 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {31627#(<= 5 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:07:45,770 INFO L273 TraceCheckUtils]: 6: Hoare triple {31627#(<= 5 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {31628#(<= 6 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:07:45,771 INFO L273 TraceCheckUtils]: 7: Hoare triple {31628#(<= 6 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {31629#(<= 7 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:07:45,772 INFO L273 TraceCheckUtils]: 8: Hoare triple {31629#(<= 7 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {31630#(<= 8 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:07:45,773 INFO L273 TraceCheckUtils]: 9: Hoare triple {31630#(<= 8 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {31631#(<= 9 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:07:45,774 INFO L273 TraceCheckUtils]: 10: Hoare triple {31631#(<= 9 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {31632#(<= 10 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:07:45,775 INFO L273 TraceCheckUtils]: 11: Hoare triple {31632#(<= 10 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {31633#(<= 11 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:07:45,776 INFO L273 TraceCheckUtils]: 12: Hoare triple {31633#(<= 11 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {31634#(<= 12 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:07:45,776 INFO L273 TraceCheckUtils]: 13: Hoare triple {31634#(<= 12 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {31635#(<= 13 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:07:45,777 INFO L273 TraceCheckUtils]: 14: Hoare triple {31635#(<= 13 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {31636#(<= 14 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:07:45,778 INFO L273 TraceCheckUtils]: 15: Hoare triple {31636#(<= 14 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {31637#(<= 15 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:07:45,779 INFO L273 TraceCheckUtils]: 16: Hoare triple {31637#(<= 15 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {31638#(<= 16 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:07:45,780 INFO L273 TraceCheckUtils]: 17: Hoare triple {31638#(<= 16 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {31639#(<= 17 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:07:45,781 INFO L273 TraceCheckUtils]: 18: Hoare triple {31639#(<= 17 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {31640#(<= 18 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:07:45,782 INFO L273 TraceCheckUtils]: 19: Hoare triple {31640#(<= 18 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {31641#(<= 19 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:07:45,783 INFO L273 TraceCheckUtils]: 20: Hoare triple {31641#(<= 19 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {31642#(<= 20 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:07:45,784 INFO L273 TraceCheckUtils]: 21: Hoare triple {31642#(<= 20 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {31643#(<= 21 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:07:45,785 INFO L273 TraceCheckUtils]: 22: Hoare triple {31643#(<= 21 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {31644#(<= 22 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:07:45,786 INFO L273 TraceCheckUtils]: 23: Hoare triple {31644#(<= 22 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {31645#(<= 23 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:07:45,786 INFO L273 TraceCheckUtils]: 24: Hoare triple {31645#(<= 23 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {31646#(<= 24 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:07:45,787 INFO L273 TraceCheckUtils]: 25: Hoare triple {31646#(<= 24 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {31647#(<= 25 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:07:45,788 INFO L273 TraceCheckUtils]: 26: Hoare triple {31647#(<= 25 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {31648#(<= 26 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:07:45,789 INFO L273 TraceCheckUtils]: 27: Hoare triple {31648#(<= 26 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {31649#(<= 27 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:07:45,790 INFO L273 TraceCheckUtils]: 28: Hoare triple {31649#(<= 27 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {31650#(<= 28 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:07:45,791 INFO L273 TraceCheckUtils]: 29: Hoare triple {31650#(<= 28 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {31651#(<= 29 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:07:45,792 INFO L273 TraceCheckUtils]: 30: Hoare triple {31651#(<= 29 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {31652#(<= 30 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:07:45,792 INFO L273 TraceCheckUtils]: 31: Hoare triple {31652#(<= 30 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {31653#(<= 31 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:07:45,793 INFO L273 TraceCheckUtils]: 32: Hoare triple {31653#(<= 31 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {31654#(<= 32 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:07:45,794 INFO L273 TraceCheckUtils]: 33: Hoare triple {31654#(<= 32 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {31655#(<= 33 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:07:45,795 INFO L273 TraceCheckUtils]: 34: Hoare triple {31655#(<= 33 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {31656#(<= 34 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:07:45,796 INFO L273 TraceCheckUtils]: 35: Hoare triple {31656#(<= 34 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {31657#(<= 35 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:07:45,797 INFO L273 TraceCheckUtils]: 36: Hoare triple {31657#(<= 35 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {31658#(<= 36 ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:07:45,798 INFO L273 TraceCheckUtils]: 37: Hoare triple {31658#(<= 36 ULTIMATE.start_main_~MAX~6)} assume !(main_~i~6 < main_~MAX~6);main_~str1~6 := main_~str1~6[main_~MAX~6 - 1 := 0];main_~j~6 := 0;main_~i~6 := main_~MAX~6 - 1; {31657#(<= 35 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:07:45,798 INFO L273 TraceCheckUtils]: 38: Hoare triple {31657#(<= 35 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {31656#(<= 34 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:07:45,799 INFO L273 TraceCheckUtils]: 39: Hoare triple {31656#(<= 34 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {31655#(<= 33 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:07:45,800 INFO L273 TraceCheckUtils]: 40: Hoare triple {31655#(<= 33 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {31654#(<= 32 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:07:45,801 INFO L273 TraceCheckUtils]: 41: Hoare triple {31654#(<= 32 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {31653#(<= 31 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:07:45,802 INFO L273 TraceCheckUtils]: 42: Hoare triple {31653#(<= 31 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {31652#(<= 30 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:07:45,803 INFO L273 TraceCheckUtils]: 43: Hoare triple {31652#(<= 30 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {31651#(<= 29 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:07:45,804 INFO L273 TraceCheckUtils]: 44: Hoare triple {31651#(<= 29 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {31650#(<= 28 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:07:45,805 INFO L273 TraceCheckUtils]: 45: Hoare triple {31650#(<= 28 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {31649#(<= 27 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:07:45,805 INFO L273 TraceCheckUtils]: 46: Hoare triple {31649#(<= 27 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {31648#(<= 26 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:07:45,806 INFO L273 TraceCheckUtils]: 47: Hoare triple {31648#(<= 26 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {31647#(<= 25 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:07:45,807 INFO L273 TraceCheckUtils]: 48: Hoare triple {31647#(<= 25 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {31646#(<= 24 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:07:45,808 INFO L273 TraceCheckUtils]: 49: Hoare triple {31646#(<= 24 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {31645#(<= 23 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:07:45,809 INFO L273 TraceCheckUtils]: 50: Hoare triple {31645#(<= 23 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {31644#(<= 22 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:07:45,810 INFO L273 TraceCheckUtils]: 51: Hoare triple {31644#(<= 22 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {31643#(<= 21 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:07:45,811 INFO L273 TraceCheckUtils]: 52: Hoare triple {31643#(<= 21 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {31642#(<= 20 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:07:45,811 INFO L273 TraceCheckUtils]: 53: Hoare triple {31642#(<= 20 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {31641#(<= 19 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:07:45,812 INFO L273 TraceCheckUtils]: 54: Hoare triple {31641#(<= 19 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {31640#(<= 18 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:07:45,813 INFO L273 TraceCheckUtils]: 55: Hoare triple {31640#(<= 18 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {31639#(<= 17 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:07:45,814 INFO L273 TraceCheckUtils]: 56: Hoare triple {31639#(<= 17 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {31638#(<= 16 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:07:45,815 INFO L273 TraceCheckUtils]: 57: Hoare triple {31638#(<= 16 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {31637#(<= 15 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:07:45,816 INFO L273 TraceCheckUtils]: 58: Hoare triple {31637#(<= 15 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {31636#(<= 14 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:07:45,817 INFO L273 TraceCheckUtils]: 59: Hoare triple {31636#(<= 14 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {31635#(<= 13 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:07:45,817 INFO L273 TraceCheckUtils]: 60: Hoare triple {31635#(<= 13 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {31634#(<= 12 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:07:45,818 INFO L273 TraceCheckUtils]: 61: Hoare triple {31634#(<= 12 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {31633#(<= 11 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:07:45,819 INFO L273 TraceCheckUtils]: 62: Hoare triple {31633#(<= 11 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {31632#(<= 10 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:07:45,820 INFO L273 TraceCheckUtils]: 63: Hoare triple {31632#(<= 10 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {31631#(<= 9 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:07:45,821 INFO L273 TraceCheckUtils]: 64: Hoare triple {31631#(<= 9 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {31630#(<= 8 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:07:45,822 INFO L273 TraceCheckUtils]: 65: Hoare triple {31630#(<= 8 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {31629#(<= 7 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:07:45,823 INFO L273 TraceCheckUtils]: 66: Hoare triple {31629#(<= 7 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {31628#(<= 6 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:07:45,823 INFO L273 TraceCheckUtils]: 67: Hoare triple {31628#(<= 6 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {31627#(<= 5 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:07:45,824 INFO L273 TraceCheckUtils]: 68: Hoare triple {31627#(<= 5 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {31626#(<= 4 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:07:45,825 INFO L273 TraceCheckUtils]: 69: Hoare triple {31626#(<= 4 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {31625#(<= 3 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:07:45,826 INFO L273 TraceCheckUtils]: 70: Hoare triple {31625#(<= 3 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {31624#(<= 2 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:07:45,827 INFO L273 TraceCheckUtils]: 71: Hoare triple {31624#(<= 2 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {31623#(<= 1 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:07:45,828 INFO L273 TraceCheckUtils]: 72: Hoare triple {31623#(<= 1 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {31622#(<= 0 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:07:45,828 INFO L273 TraceCheckUtils]: 73: Hoare triple {31622#(<= 0 ULTIMATE.start_main_~i~6)} assume !(main_~i~6 >= 0);main_~j~6 := main_~MAX~6 - 1;main_~i~6 := 0;assume !!(main_~i~6 < main_~MAX~6);__VERIFIER_assert_#in~cond := (if main_~str1~6[main_~i~6] == main_~str2~6[main_~j~6] then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond;assume __VERIFIER_assert_~cond == 0;assume !false; {31621#false} is VALID [2019-01-31 15:07:45,829 INFO L273 TraceCheckUtils]: 74: Hoare triple {31621#false} assume !false; {31621#false} is VALID [2019-01-31 15:07:45,834 INFO L134 CoverageAnalysis]: Checked inductivity of 1296 backedges. 630 proven. 666 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-31 15:07:45,834 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-31 15:07:45,834 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-01-31 15:07:45,834 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-01-31 15:07:45,834 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-01-31 15:07:45,834 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-31 15:07:45,834 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 54 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 54 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-01-31 15:07:45,843 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2019-01-31 15:07:45,843 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST2 (IT: FPandBP) [2019-01-31 15:07:46,062 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 19 check-sat command(s) [2019-01-31 15:07:46,062 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-01-31 15:07:46,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-31 15:07:46,093 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-31 15:07:46,462 INFO L273 TraceCheckUtils]: 0: Hoare triple {31620#true} havoc main_#res;havoc main_#t~nondet0, main_#t~nondet2, main_#t~post1, main_#t~post4, main_#t~post3, main_#t~post6, main_#t~post5, main_~MAX~6, main_~str1~6, main_~str2~6, main_~cont~6, main_~i~6, main_~j~6;main_~MAX~6 := (if main_#t~nondet0 % 4294967296 % 4294967296 <= 2147483647 then main_#t~nondet0 % 4294967296 % 4294967296 else main_#t~nondet0 % 4294967296 % 4294967296 - 4294967296);havoc main_#t~nondet0;havoc main_~str1~6;havoc main_~str2~6;havoc main_~cont~6;havoc main_~i~6;havoc main_~j~6;main_~cont~6 := 0;main_~i~6 := 0; {31622#(<= 0 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:07:46,463 INFO L273 TraceCheckUtils]: 1: Hoare triple {31622#(<= 0 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {31623#(<= 1 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:07:46,464 INFO L273 TraceCheckUtils]: 2: Hoare triple {31623#(<= 1 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {31624#(<= 2 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:07:46,465 INFO L273 TraceCheckUtils]: 3: Hoare triple {31624#(<= 2 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {31625#(<= 3 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:07:46,466 INFO L273 TraceCheckUtils]: 4: Hoare triple {31625#(<= 3 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {31626#(<= 4 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:07:46,467 INFO L273 TraceCheckUtils]: 5: Hoare triple {31626#(<= 4 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {31627#(<= 5 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:07:46,467 INFO L273 TraceCheckUtils]: 6: Hoare triple {31627#(<= 5 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {31628#(<= 6 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:07:46,468 INFO L273 TraceCheckUtils]: 7: Hoare triple {31628#(<= 6 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {31629#(<= 7 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:07:46,469 INFO L273 TraceCheckUtils]: 8: Hoare triple {31629#(<= 7 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {31630#(<= 8 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:07:46,470 INFO L273 TraceCheckUtils]: 9: Hoare triple {31630#(<= 8 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {31631#(<= 9 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:07:46,471 INFO L273 TraceCheckUtils]: 10: Hoare triple {31631#(<= 9 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {31632#(<= 10 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:07:46,472 INFO L273 TraceCheckUtils]: 11: Hoare triple {31632#(<= 10 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {31633#(<= 11 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:07:46,473 INFO L273 TraceCheckUtils]: 12: Hoare triple {31633#(<= 11 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {31634#(<= 12 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:07:46,473 INFO L273 TraceCheckUtils]: 13: Hoare triple {31634#(<= 12 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {31635#(<= 13 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:07:46,474 INFO L273 TraceCheckUtils]: 14: Hoare triple {31635#(<= 13 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {31636#(<= 14 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:07:46,475 INFO L273 TraceCheckUtils]: 15: Hoare triple {31636#(<= 14 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {31637#(<= 15 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:07:46,476 INFO L273 TraceCheckUtils]: 16: Hoare triple {31637#(<= 15 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {31638#(<= 16 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:07:46,477 INFO L273 TraceCheckUtils]: 17: Hoare triple {31638#(<= 16 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {31639#(<= 17 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:07:46,478 INFO L273 TraceCheckUtils]: 18: Hoare triple {31639#(<= 17 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {31640#(<= 18 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:07:46,479 INFO L273 TraceCheckUtils]: 19: Hoare triple {31640#(<= 18 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {31641#(<= 19 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:07:46,479 INFO L273 TraceCheckUtils]: 20: Hoare triple {31641#(<= 19 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {31642#(<= 20 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:07:46,480 INFO L273 TraceCheckUtils]: 21: Hoare triple {31642#(<= 20 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {31643#(<= 21 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:07:46,481 INFO L273 TraceCheckUtils]: 22: Hoare triple {31643#(<= 21 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {31644#(<= 22 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:07:46,482 INFO L273 TraceCheckUtils]: 23: Hoare triple {31644#(<= 22 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {31645#(<= 23 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:07:46,483 INFO L273 TraceCheckUtils]: 24: Hoare triple {31645#(<= 23 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {31646#(<= 24 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:07:46,484 INFO L273 TraceCheckUtils]: 25: Hoare triple {31646#(<= 24 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {31647#(<= 25 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:07:46,485 INFO L273 TraceCheckUtils]: 26: Hoare triple {31647#(<= 25 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {31648#(<= 26 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:07:46,486 INFO L273 TraceCheckUtils]: 27: Hoare triple {31648#(<= 26 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {31649#(<= 27 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:07:46,487 INFO L273 TraceCheckUtils]: 28: Hoare triple {31649#(<= 27 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {31650#(<= 28 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:07:46,488 INFO L273 TraceCheckUtils]: 29: Hoare triple {31650#(<= 28 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {31651#(<= 29 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:07:46,489 INFO L273 TraceCheckUtils]: 30: Hoare triple {31651#(<= 29 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {31652#(<= 30 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:07:46,490 INFO L273 TraceCheckUtils]: 31: Hoare triple {31652#(<= 30 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {31653#(<= 31 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:07:46,491 INFO L273 TraceCheckUtils]: 32: Hoare triple {31653#(<= 31 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {31654#(<= 32 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:07:46,491 INFO L273 TraceCheckUtils]: 33: Hoare triple {31654#(<= 32 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {31655#(<= 33 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:07:46,492 INFO L273 TraceCheckUtils]: 34: Hoare triple {31655#(<= 33 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {31656#(<= 34 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:07:46,493 INFO L273 TraceCheckUtils]: 35: Hoare triple {31656#(<= 34 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {31657#(<= 35 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:07:46,494 INFO L273 TraceCheckUtils]: 36: Hoare triple {31657#(<= 35 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {31658#(<= 36 ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:07:46,495 INFO L273 TraceCheckUtils]: 37: Hoare triple {31658#(<= 36 ULTIMATE.start_main_~MAX~6)} assume !(main_~i~6 < main_~MAX~6);main_~str1~6 := main_~str1~6[main_~MAX~6 - 1 := 0];main_~j~6 := 0;main_~i~6 := main_~MAX~6 - 1; {31657#(<= 35 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:07:46,496 INFO L273 TraceCheckUtils]: 38: Hoare triple {31657#(<= 35 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {31656#(<= 34 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:07:46,497 INFO L273 TraceCheckUtils]: 39: Hoare triple {31656#(<= 34 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {31655#(<= 33 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:07:46,498 INFO L273 TraceCheckUtils]: 40: Hoare triple {31655#(<= 33 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {31654#(<= 32 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:07:46,498 INFO L273 TraceCheckUtils]: 41: Hoare triple {31654#(<= 32 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {31653#(<= 31 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:07:46,499 INFO L273 TraceCheckUtils]: 42: Hoare triple {31653#(<= 31 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {31652#(<= 30 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:07:46,500 INFO L273 TraceCheckUtils]: 43: Hoare triple {31652#(<= 30 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {31651#(<= 29 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:07:46,501 INFO L273 TraceCheckUtils]: 44: Hoare triple {31651#(<= 29 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {31650#(<= 28 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:07:46,502 INFO L273 TraceCheckUtils]: 45: Hoare triple {31650#(<= 28 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {31649#(<= 27 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:07:46,503 INFO L273 TraceCheckUtils]: 46: Hoare triple {31649#(<= 27 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {31648#(<= 26 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:07:46,504 INFO L273 TraceCheckUtils]: 47: Hoare triple {31648#(<= 26 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {31647#(<= 25 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:07:46,504 INFO L273 TraceCheckUtils]: 48: Hoare triple {31647#(<= 25 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {31646#(<= 24 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:07:46,505 INFO L273 TraceCheckUtils]: 49: Hoare triple {31646#(<= 24 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {31645#(<= 23 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:07:46,506 INFO L273 TraceCheckUtils]: 50: Hoare triple {31645#(<= 23 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {31644#(<= 22 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:07:46,507 INFO L273 TraceCheckUtils]: 51: Hoare triple {31644#(<= 22 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {31643#(<= 21 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:07:46,508 INFO L273 TraceCheckUtils]: 52: Hoare triple {31643#(<= 21 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {31642#(<= 20 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:07:46,509 INFO L273 TraceCheckUtils]: 53: Hoare triple {31642#(<= 20 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {31641#(<= 19 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:07:46,510 INFO L273 TraceCheckUtils]: 54: Hoare triple {31641#(<= 19 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {31640#(<= 18 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:07:46,510 INFO L273 TraceCheckUtils]: 55: Hoare triple {31640#(<= 18 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {31639#(<= 17 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:07:46,511 INFO L273 TraceCheckUtils]: 56: Hoare triple {31639#(<= 17 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {31638#(<= 16 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:07:46,512 INFO L273 TraceCheckUtils]: 57: Hoare triple {31638#(<= 16 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {31637#(<= 15 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:07:46,513 INFO L273 TraceCheckUtils]: 58: Hoare triple {31637#(<= 15 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {31636#(<= 14 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:07:46,514 INFO L273 TraceCheckUtils]: 59: Hoare triple {31636#(<= 14 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {31635#(<= 13 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:07:46,515 INFO L273 TraceCheckUtils]: 60: Hoare triple {31635#(<= 13 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {31634#(<= 12 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:07:46,516 INFO L273 TraceCheckUtils]: 61: Hoare triple {31634#(<= 12 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {31633#(<= 11 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:07:46,517 INFO L273 TraceCheckUtils]: 62: Hoare triple {31633#(<= 11 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {31632#(<= 10 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:07:46,518 INFO L273 TraceCheckUtils]: 63: Hoare triple {31632#(<= 10 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {31631#(<= 9 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:07:46,518 INFO L273 TraceCheckUtils]: 64: Hoare triple {31631#(<= 9 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {31630#(<= 8 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:07:46,519 INFO L273 TraceCheckUtils]: 65: Hoare triple {31630#(<= 8 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {31629#(<= 7 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:07:46,520 INFO L273 TraceCheckUtils]: 66: Hoare triple {31629#(<= 7 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {31628#(<= 6 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:07:46,521 INFO L273 TraceCheckUtils]: 67: Hoare triple {31628#(<= 6 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {31627#(<= 5 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:07:46,522 INFO L273 TraceCheckUtils]: 68: Hoare triple {31627#(<= 5 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {31626#(<= 4 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:07:46,523 INFO L273 TraceCheckUtils]: 69: Hoare triple {31626#(<= 4 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {31625#(<= 3 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:07:46,523 INFO L273 TraceCheckUtils]: 70: Hoare triple {31625#(<= 3 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {31624#(<= 2 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:07:46,524 INFO L273 TraceCheckUtils]: 71: Hoare triple {31624#(<= 2 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {31623#(<= 1 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:07:46,525 INFO L273 TraceCheckUtils]: 72: Hoare triple {31623#(<= 1 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {31622#(<= 0 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:07:46,526 INFO L273 TraceCheckUtils]: 73: Hoare triple {31622#(<= 0 ULTIMATE.start_main_~i~6)} assume !(main_~i~6 >= 0);main_~j~6 := main_~MAX~6 - 1;main_~i~6 := 0;assume !!(main_~i~6 < main_~MAX~6);__VERIFIER_assert_#in~cond := (if main_~str1~6[main_~i~6] == main_~str2~6[main_~j~6] then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond;assume __VERIFIER_assert_~cond == 0;assume !false; {31621#false} is VALID [2019-01-31 15:07:46,526 INFO L273 TraceCheckUtils]: 74: Hoare triple {31621#false} assume !false; {31621#false} is VALID [2019-01-31 15:07:46,531 INFO L134 CoverageAnalysis]: Checked inductivity of 1296 backedges. 630 proven. 666 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-31 15:07:46,531 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2019-01-31 15:07:48,168 INFO L273 TraceCheckUtils]: 74: Hoare triple {31621#false} assume !false; {31621#false} is VALID [2019-01-31 15:07:48,169 INFO L273 TraceCheckUtils]: 73: Hoare triple {31622#(<= 0 ULTIMATE.start_main_~i~6)} assume !(main_~i~6 >= 0);main_~j~6 := main_~MAX~6 - 1;main_~i~6 := 0;assume !!(main_~i~6 < main_~MAX~6);__VERIFIER_assert_#in~cond := (if main_~str1~6[main_~i~6] == main_~str2~6[main_~j~6] then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond;assume __VERIFIER_assert_~cond == 0;assume !false; {31621#false} is VALID [2019-01-31 15:07:48,170 INFO L273 TraceCheckUtils]: 72: Hoare triple {31623#(<= 1 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {31622#(<= 0 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:07:48,170 INFO L273 TraceCheckUtils]: 71: Hoare triple {31624#(<= 2 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {31623#(<= 1 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:07:48,171 INFO L273 TraceCheckUtils]: 70: Hoare triple {31625#(<= 3 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {31624#(<= 2 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:07:48,171 INFO L273 TraceCheckUtils]: 69: Hoare triple {31626#(<= 4 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {31625#(<= 3 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:07:48,172 INFO L273 TraceCheckUtils]: 68: Hoare triple {31627#(<= 5 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {31626#(<= 4 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:07:48,173 INFO L273 TraceCheckUtils]: 67: Hoare triple {31628#(<= 6 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {31627#(<= 5 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:07:48,174 INFO L273 TraceCheckUtils]: 66: Hoare triple {31629#(<= 7 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {31628#(<= 6 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:07:48,175 INFO L273 TraceCheckUtils]: 65: Hoare triple {31630#(<= 8 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {31629#(<= 7 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:07:48,176 INFO L273 TraceCheckUtils]: 64: Hoare triple {31631#(<= 9 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {31630#(<= 8 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:07:48,177 INFO L273 TraceCheckUtils]: 63: Hoare triple {31632#(<= 10 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {31631#(<= 9 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:07:48,177 INFO L273 TraceCheckUtils]: 62: Hoare triple {31633#(<= 11 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {31632#(<= 10 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:07:48,178 INFO L273 TraceCheckUtils]: 61: Hoare triple {31634#(<= 12 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {31633#(<= 11 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:07:48,179 INFO L273 TraceCheckUtils]: 60: Hoare triple {31635#(<= 13 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {31634#(<= 12 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:07:48,180 INFO L273 TraceCheckUtils]: 59: Hoare triple {31636#(<= 14 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {31635#(<= 13 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:07:48,181 INFO L273 TraceCheckUtils]: 58: Hoare triple {31637#(<= 15 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {31636#(<= 14 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:07:48,182 INFO L273 TraceCheckUtils]: 57: Hoare triple {31638#(<= 16 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {31637#(<= 15 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:07:48,183 INFO L273 TraceCheckUtils]: 56: Hoare triple {31639#(<= 17 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {31638#(<= 16 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:07:48,183 INFO L273 TraceCheckUtils]: 55: Hoare triple {31640#(<= 18 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {31639#(<= 17 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:07:48,184 INFO L273 TraceCheckUtils]: 54: Hoare triple {31641#(<= 19 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {31640#(<= 18 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:07:48,185 INFO L273 TraceCheckUtils]: 53: Hoare triple {31642#(<= 20 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {31641#(<= 19 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:07:48,186 INFO L273 TraceCheckUtils]: 52: Hoare triple {31643#(<= 21 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {31642#(<= 20 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:07:48,187 INFO L273 TraceCheckUtils]: 51: Hoare triple {31644#(<= 22 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {31643#(<= 21 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:07:48,188 INFO L273 TraceCheckUtils]: 50: Hoare triple {31645#(<= 23 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {31644#(<= 22 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:07:48,189 INFO L273 TraceCheckUtils]: 49: Hoare triple {31646#(<= 24 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {31645#(<= 23 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:07:48,190 INFO L273 TraceCheckUtils]: 48: Hoare triple {31647#(<= 25 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {31646#(<= 24 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:07:48,191 INFO L273 TraceCheckUtils]: 47: Hoare triple {31648#(<= 26 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {31647#(<= 25 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:07:48,192 INFO L273 TraceCheckUtils]: 46: Hoare triple {31649#(<= 27 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {31648#(<= 26 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:07:48,192 INFO L273 TraceCheckUtils]: 45: Hoare triple {31650#(<= 28 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {31649#(<= 27 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:07:48,193 INFO L273 TraceCheckUtils]: 44: Hoare triple {31651#(<= 29 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {31650#(<= 28 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:07:48,194 INFO L273 TraceCheckUtils]: 43: Hoare triple {31652#(<= 30 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {31651#(<= 29 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:07:48,195 INFO L273 TraceCheckUtils]: 42: Hoare triple {31653#(<= 31 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {31652#(<= 30 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:07:48,196 INFO L273 TraceCheckUtils]: 41: Hoare triple {31654#(<= 32 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {31653#(<= 31 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:07:48,197 INFO L273 TraceCheckUtils]: 40: Hoare triple {31655#(<= 33 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {31654#(<= 32 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:07:48,198 INFO L273 TraceCheckUtils]: 39: Hoare triple {31656#(<= 34 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {31655#(<= 33 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:07:48,198 INFO L273 TraceCheckUtils]: 38: Hoare triple {31657#(<= 35 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {31656#(<= 34 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:07:48,199 INFO L273 TraceCheckUtils]: 37: Hoare triple {31658#(<= 36 ULTIMATE.start_main_~MAX~6)} assume !(main_~i~6 < main_~MAX~6);main_~str1~6 := main_~str1~6[main_~MAX~6 - 1 := 0];main_~j~6 := 0;main_~i~6 := main_~MAX~6 - 1; {31657#(<= 35 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:07:48,200 INFO L273 TraceCheckUtils]: 36: Hoare triple {31657#(<= 35 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {31658#(<= 36 ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:07:48,201 INFO L273 TraceCheckUtils]: 35: Hoare triple {31656#(<= 34 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {31657#(<= 35 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:07:48,202 INFO L273 TraceCheckUtils]: 34: Hoare triple {31655#(<= 33 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {31656#(<= 34 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:07:48,203 INFO L273 TraceCheckUtils]: 33: Hoare triple {31654#(<= 32 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {31655#(<= 33 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:07:48,204 INFO L273 TraceCheckUtils]: 32: Hoare triple {31653#(<= 31 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {31654#(<= 32 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:07:48,204 INFO L273 TraceCheckUtils]: 31: Hoare triple {31652#(<= 30 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {31653#(<= 31 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:07:48,205 INFO L273 TraceCheckUtils]: 30: Hoare triple {31651#(<= 29 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {31652#(<= 30 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:07:48,206 INFO L273 TraceCheckUtils]: 29: Hoare triple {31650#(<= 28 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {31651#(<= 29 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:07:48,207 INFO L273 TraceCheckUtils]: 28: Hoare triple {31649#(<= 27 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {31650#(<= 28 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:07:48,208 INFO L273 TraceCheckUtils]: 27: Hoare triple {31648#(<= 26 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {31649#(<= 27 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:07:48,209 INFO L273 TraceCheckUtils]: 26: Hoare triple {31647#(<= 25 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {31648#(<= 26 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:07:48,210 INFO L273 TraceCheckUtils]: 25: Hoare triple {31646#(<= 24 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {31647#(<= 25 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:07:48,211 INFO L273 TraceCheckUtils]: 24: Hoare triple {31645#(<= 23 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {31646#(<= 24 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:07:48,212 INFO L273 TraceCheckUtils]: 23: Hoare triple {31644#(<= 22 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {31645#(<= 23 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:07:48,213 INFO L273 TraceCheckUtils]: 22: Hoare triple {31643#(<= 21 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {31644#(<= 22 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:07:48,214 INFO L273 TraceCheckUtils]: 21: Hoare triple {31642#(<= 20 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {31643#(<= 21 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:07:48,215 INFO L273 TraceCheckUtils]: 20: Hoare triple {31641#(<= 19 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {31642#(<= 20 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:07:48,216 INFO L273 TraceCheckUtils]: 19: Hoare triple {31640#(<= 18 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {31641#(<= 19 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:07:48,217 INFO L273 TraceCheckUtils]: 18: Hoare triple {31639#(<= 17 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {31640#(<= 18 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:07:48,218 INFO L273 TraceCheckUtils]: 17: Hoare triple {31638#(<= 16 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {31639#(<= 17 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:07:48,218 INFO L273 TraceCheckUtils]: 16: Hoare triple {31637#(<= 15 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {31638#(<= 16 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:07:48,219 INFO L273 TraceCheckUtils]: 15: Hoare triple {31636#(<= 14 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {31637#(<= 15 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:07:48,220 INFO L273 TraceCheckUtils]: 14: Hoare triple {31635#(<= 13 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {31636#(<= 14 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:07:48,221 INFO L273 TraceCheckUtils]: 13: Hoare triple {31634#(<= 12 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {31635#(<= 13 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:07:48,222 INFO L273 TraceCheckUtils]: 12: Hoare triple {31633#(<= 11 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {31634#(<= 12 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:07:48,223 INFO L273 TraceCheckUtils]: 11: Hoare triple {31632#(<= 10 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {31633#(<= 11 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:07:48,224 INFO L273 TraceCheckUtils]: 10: Hoare triple {31631#(<= 9 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {31632#(<= 10 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:07:48,225 INFO L273 TraceCheckUtils]: 9: Hoare triple {31630#(<= 8 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {31631#(<= 9 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:07:48,226 INFO L273 TraceCheckUtils]: 8: Hoare triple {31629#(<= 7 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {31630#(<= 8 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:07:48,227 INFO L273 TraceCheckUtils]: 7: Hoare triple {31628#(<= 6 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {31629#(<= 7 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:07:48,228 INFO L273 TraceCheckUtils]: 6: Hoare triple {31627#(<= 5 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {31628#(<= 6 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:07:48,229 INFO L273 TraceCheckUtils]: 5: Hoare triple {31626#(<= 4 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {31627#(<= 5 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:07:48,230 INFO L273 TraceCheckUtils]: 4: Hoare triple {31625#(<= 3 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {31626#(<= 4 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:07:48,231 INFO L273 TraceCheckUtils]: 3: Hoare triple {31624#(<= 2 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {31625#(<= 3 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:07:48,232 INFO L273 TraceCheckUtils]: 2: Hoare triple {31623#(<= 1 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {31624#(<= 2 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:07:48,233 INFO L273 TraceCheckUtils]: 1: Hoare triple {31622#(<= 0 ULTIMATE.start_main_~i~6)} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {31623#(<= 1 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:07:48,233 INFO L273 TraceCheckUtils]: 0: Hoare triple {31620#true} havoc main_#res;havoc main_#t~nondet0, main_#t~nondet2, main_#t~post1, main_#t~post4, main_#t~post3, main_#t~post6, main_#t~post5, main_~MAX~6, main_~str1~6, main_~str2~6, main_~cont~6, main_~i~6, main_~j~6;main_~MAX~6 := (if main_#t~nondet0 % 4294967296 % 4294967296 <= 2147483647 then main_#t~nondet0 % 4294967296 % 4294967296 else main_#t~nondet0 % 4294967296 % 4294967296 - 4294967296);havoc main_#t~nondet0;havoc main_~str1~6;havoc main_~str2~6;havoc main_~cont~6;havoc main_~i~6;havoc main_~j~6;main_~cont~6 := 0;main_~i~6 := 0; {31622#(<= 0 ULTIMATE.start_main_~i~6)} is VALID [2019-01-31 15:07:48,239 INFO L134 CoverageAnalysis]: Checked inductivity of 1296 backedges. 630 proven. 666 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-31 15:07:48,283 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-01-31 15:07:48,283 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [38, 38, 38] total 38 [2019-01-31 15:07:48,283 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-01-31 15:07:48,284 INFO L78 Accepts]: Start accepts. Automaton has 39 states. Word has length 75 [2019-01-31 15:07:48,284 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-01-31 15:07:48,284 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 39 states. [2019-01-31 15:07:48,369 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 75 edges. 75 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-01-31 15:07:48,369 INFO L459 AbstractCegarLoop]: Interpolant automaton has 39 states [2019-01-31 15:07:48,369 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2019-01-31 15:07:48,370 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=705, Invalid=777, Unknown=0, NotChecked=0, Total=1482 [2019-01-31 15:07:48,370 INFO L87 Difference]: Start difference. First operand 76 states and 77 transitions. Second operand 39 states. [2019-01-31 15:07:51,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 15:07:51,573 INFO L93 Difference]: Finished difference Result 79 states and 80 transitions. [2019-01-31 15:07:51,573 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 75 states. [2019-01-31 15:07:51,573 INFO L78 Accepts]: Start accepts. Automaton has 39 states. Word has length 75 [2019-01-31 15:07:51,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-31 15:07:51,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2019-01-31 15:07:51,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 80 transitions. [2019-01-31 15:07:51,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2019-01-31 15:07:51,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 80 transitions. [2019-01-31 15:07:51,575 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 75 states and 80 transitions. [2019-01-31 15:07:51,646 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 80 edges. 80 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-01-31 15:07:51,647 INFO L225 Difference]: With dead ends: 79 [2019-01-31 15:07:51,647 INFO L226 Difference]: Without dead ends: 77 [2019-01-31 15:07:51,648 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 258 GetRequests, 113 SyntacticMatches, 72 SemanticMatches, 73 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2520 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=2109, Invalid=3441, Unknown=0, NotChecked=0, Total=5550 [2019-01-31 15:07:51,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2019-01-31 15:07:54,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 77. [2019-01-31 15:07:54,362 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-01-31 15:07:54,363 INFO L82 GeneralOperation]: Start isEquivalent. First operand 77 states. Second operand 77 states. [2019-01-31 15:07:54,363 INFO L74 IsIncluded]: Start isIncluded. First operand 77 states. Second operand 77 states. [2019-01-31 15:07:54,363 INFO L87 Difference]: Start difference. First operand 77 states. Second operand 77 states. [2019-01-31 15:07:54,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 15:07:54,364 INFO L93 Difference]: Finished difference Result 77 states and 78 transitions. [2019-01-31 15:07:54,364 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 78 transitions. [2019-01-31 15:07:54,365 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-31 15:07:54,365 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-01-31 15:07:54,365 INFO L74 IsIncluded]: Start isIncluded. First operand 77 states. Second operand 77 states. [2019-01-31 15:07:54,365 INFO L87 Difference]: Start difference. First operand 77 states. Second operand 77 states. [2019-01-31 15:07:54,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 15:07:54,366 INFO L93 Difference]: Finished difference Result 77 states and 78 transitions. [2019-01-31 15:07:54,366 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 78 transitions. [2019-01-31 15:07:54,366 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-31 15:07:54,366 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-01-31 15:07:54,366 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-01-31 15:07:54,366 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-01-31 15:07:54,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 77 states. [2019-01-31 15:07:54,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 78 transitions. [2019-01-31 15:07:54,367 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 78 transitions. Word has length 75 [2019-01-31 15:07:54,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-31 15:07:54,368 INFO L480 AbstractCegarLoop]: Abstraction has 77 states and 78 transitions. [2019-01-31 15:07:54,368 INFO L481 AbstractCegarLoop]: Interpolant automaton has 39 states. [2019-01-31 15:07:54,368 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 78 transitions. [2019-01-31 15:07:54,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2019-01-31 15:07:54,368 INFO L394 BasicCegarLoop]: Found error trace [2019-01-31 15:07:54,368 INFO L402 BasicCegarLoop]: trace histogram [36, 36, 1, 1, 1, 1] [2019-01-31 15:07:54,368 INFO L423 AbstractCegarLoop]: === Iteration 56 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2019-01-31 15:07:54,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-31 15:07:54,369 INFO L82 PathProgramCache]: Analyzing trace with hash -2106305526, now seen corresponding path program 54 times [2019-01-31 15:07:54,369 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-01-31 15:07:54,369 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-31 15:07:54,369 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-01-31 15:07:54,369 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-31 15:07:54,369 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-01-31 15:07:54,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-31 15:07:57,651 INFO L273 TraceCheckUtils]: 0: Hoare triple {32638#true} havoc main_#res;havoc main_#t~nondet0, main_#t~nondet2, main_#t~post1, main_#t~post4, main_#t~post3, main_#t~post6, main_#t~post5, main_~MAX~6, main_~str1~6, main_~str2~6, main_~cont~6, main_~i~6, main_~j~6;main_~MAX~6 := (if main_#t~nondet0 % 4294967296 % 4294967296 <= 2147483647 then main_#t~nondet0 % 4294967296 % 4294967296 else main_#t~nondet0 % 4294967296 % 4294967296 - 4294967296);havoc main_#t~nondet0;havoc main_~str1~6;havoc main_~str2~6;havoc main_~cont~6;havoc main_~i~6;havoc main_~j~6;main_~cont~6 := 0;main_~i~6 := 0; {32640#(and (<= ULTIMATE.start_main_~i~6 0) (<= 0 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:07:57,652 INFO L273 TraceCheckUtils]: 1: Hoare triple {32640#(and (<= ULTIMATE.start_main_~i~6 0) (<= 0 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {32641#(and (<= ULTIMATE.start_main_~i~6 1) (<= 1 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:07:57,653 INFO L273 TraceCheckUtils]: 2: Hoare triple {32641#(and (<= ULTIMATE.start_main_~i~6 1) (<= 1 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {32642#(and (<= ULTIMATE.start_main_~i~6 2) (<= 2 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:07:57,654 INFO L273 TraceCheckUtils]: 3: Hoare triple {32642#(and (<= ULTIMATE.start_main_~i~6 2) (<= 2 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {32643#(and (<= 3 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 3))} is VALID [2019-01-31 15:07:57,655 INFO L273 TraceCheckUtils]: 4: Hoare triple {32643#(and (<= 3 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 3))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {32644#(and (<= ULTIMATE.start_main_~i~6 4) (<= 4 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:07:57,656 INFO L273 TraceCheckUtils]: 5: Hoare triple {32644#(and (<= ULTIMATE.start_main_~i~6 4) (<= 4 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {32645#(and (<= 5 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 5))} is VALID [2019-01-31 15:07:57,657 INFO L273 TraceCheckUtils]: 6: Hoare triple {32645#(and (<= 5 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 5))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {32646#(and (<= ULTIMATE.start_main_~i~6 6) (<= 6 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:07:57,658 INFO L273 TraceCheckUtils]: 7: Hoare triple {32646#(and (<= ULTIMATE.start_main_~i~6 6) (<= 6 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {32647#(and (<= 7 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 7))} is VALID [2019-01-31 15:07:57,659 INFO L273 TraceCheckUtils]: 8: Hoare triple {32647#(and (<= 7 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 7))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {32648#(and (<= ULTIMATE.start_main_~i~6 8) (<= 8 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:07:57,660 INFO L273 TraceCheckUtils]: 9: Hoare triple {32648#(and (<= ULTIMATE.start_main_~i~6 8) (<= 8 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {32649#(and (<= ULTIMATE.start_main_~i~6 9) (<= 9 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:07:57,661 INFO L273 TraceCheckUtils]: 10: Hoare triple {32649#(and (<= ULTIMATE.start_main_~i~6 9) (<= 9 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {32650#(and (<= ULTIMATE.start_main_~i~6 10) (<= 10 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:07:57,662 INFO L273 TraceCheckUtils]: 11: Hoare triple {32650#(and (<= ULTIMATE.start_main_~i~6 10) (<= 10 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {32651#(and (<= 11 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 11))} is VALID [2019-01-31 15:07:57,662 INFO L273 TraceCheckUtils]: 12: Hoare triple {32651#(and (<= 11 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 11))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {32652#(and (<= ULTIMATE.start_main_~i~6 12) (<= 12 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:07:57,663 INFO L273 TraceCheckUtils]: 13: Hoare triple {32652#(and (<= ULTIMATE.start_main_~i~6 12) (<= 12 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {32653#(and (<= ULTIMATE.start_main_~i~6 13) (<= 13 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:07:57,664 INFO L273 TraceCheckUtils]: 14: Hoare triple {32653#(and (<= ULTIMATE.start_main_~i~6 13) (<= 13 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {32654#(and (<= ULTIMATE.start_main_~i~6 14) (<= 14 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:07:57,665 INFO L273 TraceCheckUtils]: 15: Hoare triple {32654#(and (<= ULTIMATE.start_main_~i~6 14) (<= 14 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {32655#(and (<= 15 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 15))} is VALID [2019-01-31 15:07:57,666 INFO L273 TraceCheckUtils]: 16: Hoare triple {32655#(and (<= 15 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 15))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {32656#(and (<= 16 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 16))} is VALID [2019-01-31 15:07:57,667 INFO L273 TraceCheckUtils]: 17: Hoare triple {32656#(and (<= 16 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 16))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {32657#(and (<= ULTIMATE.start_main_~i~6 17) (<= 17 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:07:57,668 INFO L273 TraceCheckUtils]: 18: Hoare triple {32657#(and (<= ULTIMATE.start_main_~i~6 17) (<= 17 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {32658#(and (<= ULTIMATE.start_main_~i~6 18) (<= 18 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:07:57,669 INFO L273 TraceCheckUtils]: 19: Hoare triple {32658#(and (<= ULTIMATE.start_main_~i~6 18) (<= 18 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {32659#(and (<= ULTIMATE.start_main_~i~6 19) (<= 19 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:07:57,670 INFO L273 TraceCheckUtils]: 20: Hoare triple {32659#(and (<= ULTIMATE.start_main_~i~6 19) (<= 19 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {32660#(and (<= ULTIMATE.start_main_~i~6 20) (<= 20 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:07:57,671 INFO L273 TraceCheckUtils]: 21: Hoare triple {32660#(and (<= ULTIMATE.start_main_~i~6 20) (<= 20 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {32661#(and (<= ULTIMATE.start_main_~i~6 21) (<= 21 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:07:57,672 INFO L273 TraceCheckUtils]: 22: Hoare triple {32661#(and (<= ULTIMATE.start_main_~i~6 21) (<= 21 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {32662#(and (<= 22 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 22))} is VALID [2019-01-31 15:07:57,673 INFO L273 TraceCheckUtils]: 23: Hoare triple {32662#(and (<= 22 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 22))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {32663#(and (<= 23 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 23))} is VALID [2019-01-31 15:07:57,674 INFO L273 TraceCheckUtils]: 24: Hoare triple {32663#(and (<= 23 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 23))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {32664#(and (<= ULTIMATE.start_main_~i~6 24) (<= 24 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:07:57,675 INFO L273 TraceCheckUtils]: 25: Hoare triple {32664#(and (<= ULTIMATE.start_main_~i~6 24) (<= 24 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {32665#(and (<= ULTIMATE.start_main_~i~6 25) (<= 25 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:07:57,676 INFO L273 TraceCheckUtils]: 26: Hoare triple {32665#(and (<= ULTIMATE.start_main_~i~6 25) (<= 25 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {32666#(and (<= 26 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 26))} is VALID [2019-01-31 15:07:57,677 INFO L273 TraceCheckUtils]: 27: Hoare triple {32666#(and (<= 26 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 26))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {32667#(and (<= ULTIMATE.start_main_~i~6 27) (<= 27 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:07:57,677 INFO L273 TraceCheckUtils]: 28: Hoare triple {32667#(and (<= ULTIMATE.start_main_~i~6 27) (<= 27 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {32668#(and (<= ULTIMATE.start_main_~i~6 28) (<= 28 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:07:57,678 INFO L273 TraceCheckUtils]: 29: Hoare triple {32668#(and (<= ULTIMATE.start_main_~i~6 28) (<= 28 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {32669#(and (<= 29 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 29))} is VALID [2019-01-31 15:07:57,679 INFO L273 TraceCheckUtils]: 30: Hoare triple {32669#(and (<= 29 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 29))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {32670#(and (<= 30 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 30))} is VALID [2019-01-31 15:07:57,680 INFO L273 TraceCheckUtils]: 31: Hoare triple {32670#(and (<= 30 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 30))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {32671#(and (<= ULTIMATE.start_main_~i~6 31) (<= 31 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:07:57,681 INFO L273 TraceCheckUtils]: 32: Hoare triple {32671#(and (<= ULTIMATE.start_main_~i~6 31) (<= 31 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {32672#(and (<= 32 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 32))} is VALID [2019-01-31 15:07:57,682 INFO L273 TraceCheckUtils]: 33: Hoare triple {32672#(and (<= 32 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 32))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {32673#(and (<= 33 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 33))} is VALID [2019-01-31 15:07:57,683 INFO L273 TraceCheckUtils]: 34: Hoare triple {32673#(and (<= 33 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 33))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {32674#(and (<= ULTIMATE.start_main_~i~6 34) (<= 34 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:07:57,684 INFO L273 TraceCheckUtils]: 35: Hoare triple {32674#(and (<= ULTIMATE.start_main_~i~6 34) (<= 34 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {32675#(or (not (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 1))) (and (<= ULTIMATE.start_main_~i~6 35) (<= 35 ULTIMATE.start_main_~i~6)))} is VALID [2019-01-31 15:07:57,685 INFO L273 TraceCheckUtils]: 36: Hoare triple {32675#(or (not (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 1))) (and (<= ULTIMATE.start_main_~i~6 35) (<= 35 ULTIMATE.start_main_~i~6)))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {32676#(or (= 36 ULTIMATE.start_main_~MAX~6) (<= (+ ULTIMATE.start_main_~i~6 1) ULTIMATE.start_main_~MAX~6))} is VALID [2019-01-31 15:07:57,686 INFO L273 TraceCheckUtils]: 37: Hoare triple {32676#(or (= 36 ULTIMATE.start_main_~MAX~6) (<= (+ ULTIMATE.start_main_~i~6 1) ULTIMATE.start_main_~MAX~6))} assume !(main_~i~6 < main_~MAX~6);main_~str1~6 := main_~str1~6[main_~MAX~6 - 1 := 0];main_~j~6 := 0;main_~i~6 := main_~MAX~6 - 1; {32677#(= (+ ULTIMATE.start_main_~j~6 36) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:07:57,687 INFO L273 TraceCheckUtils]: 38: Hoare triple {32677#(= (+ ULTIMATE.start_main_~j~6 36) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {32678#(= (+ ULTIMATE.start_main_~j~6 35) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:07:57,688 INFO L273 TraceCheckUtils]: 39: Hoare triple {32678#(= (+ ULTIMATE.start_main_~j~6 35) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {32679#(= (+ ULTIMATE.start_main_~j~6 34) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:07:57,689 INFO L273 TraceCheckUtils]: 40: Hoare triple {32679#(= (+ ULTIMATE.start_main_~j~6 34) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {32680#(= (+ ULTIMATE.start_main_~j~6 33) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:07:57,690 INFO L273 TraceCheckUtils]: 41: Hoare triple {32680#(= (+ ULTIMATE.start_main_~j~6 33) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {32681#(= (+ ULTIMATE.start_main_~j~6 32) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:07:57,691 INFO L273 TraceCheckUtils]: 42: Hoare triple {32681#(= (+ ULTIMATE.start_main_~j~6 32) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {32682#(= (+ ULTIMATE.start_main_~j~6 31) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:07:57,692 INFO L273 TraceCheckUtils]: 43: Hoare triple {32682#(= (+ ULTIMATE.start_main_~j~6 31) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {32683#(= (+ ULTIMATE.start_main_~j~6 30) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:07:57,693 INFO L273 TraceCheckUtils]: 44: Hoare triple {32683#(= (+ ULTIMATE.start_main_~j~6 30) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {32684#(= (+ ULTIMATE.start_main_~j~6 29) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:07:57,694 INFO L273 TraceCheckUtils]: 45: Hoare triple {32684#(= (+ ULTIMATE.start_main_~j~6 29) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {32685#(= (+ ULTIMATE.start_main_~j~6 28) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:07:57,695 INFO L273 TraceCheckUtils]: 46: Hoare triple {32685#(= (+ ULTIMATE.start_main_~j~6 28) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {32686#(= (+ ULTIMATE.start_main_~j~6 27) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:07:57,696 INFO L273 TraceCheckUtils]: 47: Hoare triple {32686#(= (+ ULTIMATE.start_main_~j~6 27) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {32687#(= (+ ULTIMATE.start_main_~j~6 26) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:07:57,697 INFO L273 TraceCheckUtils]: 48: Hoare triple {32687#(= (+ ULTIMATE.start_main_~j~6 26) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {32688#(= (+ ULTIMATE.start_main_~j~6 25) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:07:57,698 INFO L273 TraceCheckUtils]: 49: Hoare triple {32688#(= (+ ULTIMATE.start_main_~j~6 25) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {32689#(= (+ ULTIMATE.start_main_~j~6 24) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:07:57,698 INFO L273 TraceCheckUtils]: 50: Hoare triple {32689#(= (+ ULTIMATE.start_main_~j~6 24) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {32690#(= (+ ULTIMATE.start_main_~j~6 23) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:07:57,699 INFO L273 TraceCheckUtils]: 51: Hoare triple {32690#(= (+ ULTIMATE.start_main_~j~6 23) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {32691#(= (+ ULTIMATE.start_main_~j~6 22) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:07:57,700 INFO L273 TraceCheckUtils]: 52: Hoare triple {32691#(= (+ ULTIMATE.start_main_~j~6 22) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {32692#(= (+ ULTIMATE.start_main_~j~6 21) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:07:57,701 INFO L273 TraceCheckUtils]: 53: Hoare triple {32692#(= (+ ULTIMATE.start_main_~j~6 21) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {32693#(= (+ ULTIMATE.start_main_~j~6 20) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:07:57,702 INFO L273 TraceCheckUtils]: 54: Hoare triple {32693#(= (+ ULTIMATE.start_main_~j~6 20) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {32694#(= (+ ULTIMATE.start_main_~j~6 19) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:07:57,703 INFO L273 TraceCheckUtils]: 55: Hoare triple {32694#(= (+ ULTIMATE.start_main_~j~6 19) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {32695#(= (+ ULTIMATE.start_main_~j~6 18) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:07:57,704 INFO L273 TraceCheckUtils]: 56: Hoare triple {32695#(= (+ ULTIMATE.start_main_~j~6 18) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {32696#(= (+ ULTIMATE.start_main_~j~6 17) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:07:57,705 INFO L273 TraceCheckUtils]: 57: Hoare triple {32696#(= (+ ULTIMATE.start_main_~j~6 17) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {32697#(= (+ ULTIMATE.start_main_~j~6 16) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:07:57,706 INFO L273 TraceCheckUtils]: 58: Hoare triple {32697#(= (+ ULTIMATE.start_main_~j~6 16) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {32698#(= (+ ULTIMATE.start_main_~j~6 15) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:07:57,707 INFO L273 TraceCheckUtils]: 59: Hoare triple {32698#(= (+ ULTIMATE.start_main_~j~6 15) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {32699#(= (+ ULTIMATE.start_main_~j~6 14) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:07:57,708 INFO L273 TraceCheckUtils]: 60: Hoare triple {32699#(= (+ ULTIMATE.start_main_~j~6 14) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {32700#(= (+ ULTIMATE.start_main_~j~6 13) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:07:57,709 INFO L273 TraceCheckUtils]: 61: Hoare triple {32700#(= (+ ULTIMATE.start_main_~j~6 13) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {32701#(= (+ ULTIMATE.start_main_~j~6 12) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:07:57,710 INFO L273 TraceCheckUtils]: 62: Hoare triple {32701#(= (+ ULTIMATE.start_main_~j~6 12) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {32702#(= (+ ULTIMATE.start_main_~j~6 11) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:07:57,711 INFO L273 TraceCheckUtils]: 63: Hoare triple {32702#(= (+ ULTIMATE.start_main_~j~6 11) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {32703#(= (+ ULTIMATE.start_main_~j~6 10) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:07:57,712 INFO L273 TraceCheckUtils]: 64: Hoare triple {32703#(= (+ ULTIMATE.start_main_~j~6 10) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {32704#(= (+ ULTIMATE.start_main_~j~6 9) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:07:57,713 INFO L273 TraceCheckUtils]: 65: Hoare triple {32704#(= (+ ULTIMATE.start_main_~j~6 9) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {32705#(= (+ ULTIMATE.start_main_~j~6 8) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:07:57,713 INFO L273 TraceCheckUtils]: 66: Hoare triple {32705#(= (+ ULTIMATE.start_main_~j~6 8) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {32706#(= (+ ULTIMATE.start_main_~j~6 7) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:07:57,714 INFO L273 TraceCheckUtils]: 67: Hoare triple {32706#(= (+ ULTIMATE.start_main_~j~6 7) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {32707#(= (+ ULTIMATE.start_main_~j~6 6) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:07:57,715 INFO L273 TraceCheckUtils]: 68: Hoare triple {32707#(= (+ ULTIMATE.start_main_~j~6 6) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {32708#(= (+ ULTIMATE.start_main_~j~6 5) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:07:57,716 INFO L273 TraceCheckUtils]: 69: Hoare triple {32708#(= (+ ULTIMATE.start_main_~j~6 5) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {32709#(= (+ ULTIMATE.start_main_~j~6 4) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:07:57,717 INFO L273 TraceCheckUtils]: 70: Hoare triple {32709#(= (+ ULTIMATE.start_main_~j~6 4) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {32710#(= (+ ULTIMATE.start_main_~j~6 3) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:07:57,718 INFO L273 TraceCheckUtils]: 71: Hoare triple {32710#(= (+ ULTIMATE.start_main_~j~6 3) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {32711#(= (+ ULTIMATE.start_main_~j~6 2) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:07:57,719 INFO L273 TraceCheckUtils]: 72: Hoare triple {32711#(= (+ ULTIMATE.start_main_~j~6 2) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {32712#(= (+ ULTIMATE.start_main_~j~6 1) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:07:57,720 INFO L273 TraceCheckUtils]: 73: Hoare triple {32712#(= (+ ULTIMATE.start_main_~j~6 1) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {32713#(= (select ULTIMATE.start_main_~str1~6 0) (select ULTIMATE.start_main_~str2~6 (+ ULTIMATE.start_main_~MAX~6 (- 1))))} is VALID [2019-01-31 15:07:57,721 INFO L273 TraceCheckUtils]: 74: Hoare triple {32713#(= (select ULTIMATE.start_main_~str1~6 0) (select ULTIMATE.start_main_~str2~6 (+ ULTIMATE.start_main_~MAX~6 (- 1))))} assume !(main_~i~6 >= 0);main_~j~6 := main_~MAX~6 - 1;main_~i~6 := 0;assume !!(main_~i~6 < main_~MAX~6);__VERIFIER_assert_#in~cond := (if main_~str1~6[main_~i~6] == main_~str2~6[main_~j~6] then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond;assume __VERIFIER_assert_~cond == 0;assume !false; {32639#false} is VALID [2019-01-31 15:07:57,722 INFO L273 TraceCheckUtils]: 75: Hoare triple {32639#false} assume !false; {32639#false} is VALID [2019-01-31 15:07:57,732 INFO L134 CoverageAnalysis]: Checked inductivity of 1332 backedges. 0 proven. 1332 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-31 15:07:57,732 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-31 15:07:57,732 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-01-31 15:07:57,732 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-01-31 15:07:57,733 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-01-31 15:07:57,733 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-31 15:07:57,733 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 55 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 55 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-01-31 15:07:57,761 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2019-01-31 15:07:57,761 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder TERMS_WITH_SMALL_CONSTANTS_FIRST (IT: FPandBP) [2019-01-31 15:07:57,805 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-01-31 15:07:57,805 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-01-31 15:07:57,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-31 15:07:57,851 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-31 15:08:01,385 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2019-01-31 15:08:01,386 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-01-31 15:08:01,393 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-31 15:08:01,393 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:17, output treesize:16 [2019-01-31 15:08:01,396 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-01-31 15:08:01,396 WARN L398 uantifierElimination]: Input elimination task: ∃ [v_ULTIMATE.start_main_~str2~6_996]. (and (= (store v_ULTIMATE.start_main_~str2~6_996 35 (select ULTIMATE.start_main_~str1~6 0)) ULTIMATE.start_main_~str2~6) (<= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 37)) (<= 36 ULTIMATE.start_main_~MAX~6)) [2019-01-31 15:08:01,396 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (and (<= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 37)) (<= 36 ULTIMATE.start_main_~MAX~6) (= (select ULTIMATE.start_main_~str1~6 0) (select ULTIMATE.start_main_~str2~6 35))) [2019-01-31 15:08:01,517 INFO L273 TraceCheckUtils]: 0: Hoare triple {32638#true} havoc main_#res;havoc main_#t~nondet0, main_#t~nondet2, main_#t~post1, main_#t~post4, main_#t~post3, main_#t~post6, main_#t~post5, main_~MAX~6, main_~str1~6, main_~str2~6, main_~cont~6, main_~i~6, main_~j~6;main_~MAX~6 := (if main_#t~nondet0 % 4294967296 % 4294967296 <= 2147483647 then main_#t~nondet0 % 4294967296 % 4294967296 else main_#t~nondet0 % 4294967296 % 4294967296 - 4294967296);havoc main_#t~nondet0;havoc main_~str1~6;havoc main_~str2~6;havoc main_~cont~6;havoc main_~i~6;havoc main_~j~6;main_~cont~6 := 0;main_~i~6 := 0; {32638#true} is VALID [2019-01-31 15:08:01,517 INFO L273 TraceCheckUtils]: 1: Hoare triple {32638#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {32638#true} is VALID [2019-01-31 15:08:01,518 INFO L273 TraceCheckUtils]: 2: Hoare triple {32638#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {32638#true} is VALID [2019-01-31 15:08:01,518 INFO L273 TraceCheckUtils]: 3: Hoare triple {32638#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {32638#true} is VALID [2019-01-31 15:08:01,518 INFO L273 TraceCheckUtils]: 4: Hoare triple {32638#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {32638#true} is VALID [2019-01-31 15:08:01,518 INFO L273 TraceCheckUtils]: 5: Hoare triple {32638#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {32638#true} is VALID [2019-01-31 15:08:01,518 INFO L273 TraceCheckUtils]: 6: Hoare triple {32638#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {32638#true} is VALID [2019-01-31 15:08:01,518 INFO L273 TraceCheckUtils]: 7: Hoare triple {32638#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {32638#true} is VALID [2019-01-31 15:08:01,518 INFO L273 TraceCheckUtils]: 8: Hoare triple {32638#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {32638#true} is VALID [2019-01-31 15:08:01,518 INFO L273 TraceCheckUtils]: 9: Hoare triple {32638#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {32638#true} is VALID [2019-01-31 15:08:01,518 INFO L273 TraceCheckUtils]: 10: Hoare triple {32638#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {32638#true} is VALID [2019-01-31 15:08:01,518 INFO L273 TraceCheckUtils]: 11: Hoare triple {32638#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {32638#true} is VALID [2019-01-31 15:08:01,519 INFO L273 TraceCheckUtils]: 12: Hoare triple {32638#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {32638#true} is VALID [2019-01-31 15:08:01,519 INFO L273 TraceCheckUtils]: 13: Hoare triple {32638#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {32638#true} is VALID [2019-01-31 15:08:01,519 INFO L273 TraceCheckUtils]: 14: Hoare triple {32638#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {32638#true} is VALID [2019-01-31 15:08:01,519 INFO L273 TraceCheckUtils]: 15: Hoare triple {32638#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {32638#true} is VALID [2019-01-31 15:08:01,519 INFO L273 TraceCheckUtils]: 16: Hoare triple {32638#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {32638#true} is VALID [2019-01-31 15:08:01,519 INFO L273 TraceCheckUtils]: 17: Hoare triple {32638#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {32638#true} is VALID [2019-01-31 15:08:01,519 INFO L273 TraceCheckUtils]: 18: Hoare triple {32638#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {32638#true} is VALID [2019-01-31 15:08:01,519 INFO L273 TraceCheckUtils]: 19: Hoare triple {32638#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {32638#true} is VALID [2019-01-31 15:08:01,519 INFO L273 TraceCheckUtils]: 20: Hoare triple {32638#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {32638#true} is VALID [2019-01-31 15:08:01,519 INFO L273 TraceCheckUtils]: 21: Hoare triple {32638#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {32638#true} is VALID [2019-01-31 15:08:01,520 INFO L273 TraceCheckUtils]: 22: Hoare triple {32638#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {32638#true} is VALID [2019-01-31 15:08:01,520 INFO L273 TraceCheckUtils]: 23: Hoare triple {32638#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {32638#true} is VALID [2019-01-31 15:08:01,520 INFO L273 TraceCheckUtils]: 24: Hoare triple {32638#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {32638#true} is VALID [2019-01-31 15:08:01,520 INFO L273 TraceCheckUtils]: 25: Hoare triple {32638#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {32638#true} is VALID [2019-01-31 15:08:01,520 INFO L273 TraceCheckUtils]: 26: Hoare triple {32638#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {32638#true} is VALID [2019-01-31 15:08:01,520 INFO L273 TraceCheckUtils]: 27: Hoare triple {32638#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {32638#true} is VALID [2019-01-31 15:08:01,520 INFO L273 TraceCheckUtils]: 28: Hoare triple {32638#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {32638#true} is VALID [2019-01-31 15:08:01,520 INFO L273 TraceCheckUtils]: 29: Hoare triple {32638#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {32638#true} is VALID [2019-01-31 15:08:01,520 INFO L273 TraceCheckUtils]: 30: Hoare triple {32638#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {32638#true} is VALID [2019-01-31 15:08:01,520 INFO L273 TraceCheckUtils]: 31: Hoare triple {32638#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {32638#true} is VALID [2019-01-31 15:08:01,521 INFO L273 TraceCheckUtils]: 32: Hoare triple {32638#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {32638#true} is VALID [2019-01-31 15:08:01,521 INFO L273 TraceCheckUtils]: 33: Hoare triple {32638#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {32638#true} is VALID [2019-01-31 15:08:01,521 INFO L273 TraceCheckUtils]: 34: Hoare triple {32638#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {32638#true} is VALID [2019-01-31 15:08:01,521 INFO L273 TraceCheckUtils]: 35: Hoare triple {32638#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {32638#true} is VALID [2019-01-31 15:08:01,521 INFO L273 TraceCheckUtils]: 36: Hoare triple {32638#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {32638#true} is VALID [2019-01-31 15:08:01,521 INFO L273 TraceCheckUtils]: 37: Hoare triple {32638#true} assume !(main_~i~6 < main_~MAX~6);main_~str1~6 := main_~str1~6[main_~MAX~6 - 1 := 0];main_~j~6 := 0;main_~i~6 := main_~MAX~6 - 1; {32828#(and (= ULTIMATE.start_main_~j~6 0) (= (+ ULTIMATE.start_main_~i~6 1) ULTIMATE.start_main_~MAX~6))} is VALID [2019-01-31 15:08:01,522 INFO L273 TraceCheckUtils]: 38: Hoare triple {32828#(and (= ULTIMATE.start_main_~j~6 0) (= (+ ULTIMATE.start_main_~i~6 1) ULTIMATE.start_main_~MAX~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {32832#(and (= ULTIMATE.start_main_~j~6 1) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 2)))} is VALID [2019-01-31 15:08:01,523 INFO L273 TraceCheckUtils]: 39: Hoare triple {32832#(and (= ULTIMATE.start_main_~j~6 1) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 2)))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {32836#(and (= (+ ULTIMATE.start_main_~i~6 3) ULTIMATE.start_main_~MAX~6) (= ULTIMATE.start_main_~j~6 2))} is VALID [2019-01-31 15:08:01,523 INFO L273 TraceCheckUtils]: 40: Hoare triple {32836#(and (= (+ ULTIMATE.start_main_~i~6 3) ULTIMATE.start_main_~MAX~6) (= ULTIMATE.start_main_~j~6 2))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {32840#(and (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 4)) (= ULTIMATE.start_main_~j~6 3))} is VALID [2019-01-31 15:08:01,524 INFO L273 TraceCheckUtils]: 41: Hoare triple {32840#(and (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 4)) (= ULTIMATE.start_main_~j~6 3))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {32844#(and (= ULTIMATE.start_main_~j~6 4) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 5)))} is VALID [2019-01-31 15:08:01,525 INFO L273 TraceCheckUtils]: 42: Hoare triple {32844#(and (= ULTIMATE.start_main_~j~6 4) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 5)))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {32848#(and (= ULTIMATE.start_main_~j~6 5) (= (+ ULTIMATE.start_main_~i~6 6) ULTIMATE.start_main_~MAX~6))} is VALID [2019-01-31 15:08:01,525 INFO L273 TraceCheckUtils]: 43: Hoare triple {32848#(and (= ULTIMATE.start_main_~j~6 5) (= (+ ULTIMATE.start_main_~i~6 6) ULTIMATE.start_main_~MAX~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {32852#(and (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 7)) (= ULTIMATE.start_main_~j~6 6))} is VALID [2019-01-31 15:08:01,526 INFO L273 TraceCheckUtils]: 44: Hoare triple {32852#(and (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 7)) (= ULTIMATE.start_main_~j~6 6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {32856#(and (= ULTIMATE.start_main_~j~6 7) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 8)))} is VALID [2019-01-31 15:08:01,527 INFO L273 TraceCheckUtils]: 45: Hoare triple {32856#(and (= ULTIMATE.start_main_~j~6 7) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 8)))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {32860#(and (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 9)) (= ULTIMATE.start_main_~j~6 8))} is VALID [2019-01-31 15:08:01,528 INFO L273 TraceCheckUtils]: 46: Hoare triple {32860#(and (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 9)) (= ULTIMATE.start_main_~j~6 8))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {32864#(and (= ULTIMATE.start_main_~j~6 9) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 10)))} is VALID [2019-01-31 15:08:01,529 INFO L273 TraceCheckUtils]: 47: Hoare triple {32864#(and (= ULTIMATE.start_main_~j~6 9) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 10)))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {32868#(and (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 11)) (= ULTIMATE.start_main_~j~6 10))} is VALID [2019-01-31 15:08:01,530 INFO L273 TraceCheckUtils]: 48: Hoare triple {32868#(and (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 11)) (= ULTIMATE.start_main_~j~6 10))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {32872#(and (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 12)) (= ULTIMATE.start_main_~j~6 11))} is VALID [2019-01-31 15:08:01,532 INFO L273 TraceCheckUtils]: 49: Hoare triple {32872#(and (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 12)) (= ULTIMATE.start_main_~j~6 11))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {32876#(and (= ULTIMATE.start_main_~j~6 12) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 13)))} is VALID [2019-01-31 15:08:01,533 INFO L273 TraceCheckUtils]: 50: Hoare triple {32876#(and (= ULTIMATE.start_main_~j~6 12) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 13)))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {32880#(and (= ULTIMATE.start_main_~j~6 13) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 14)))} is VALID [2019-01-31 15:08:01,534 INFO L273 TraceCheckUtils]: 51: Hoare triple {32880#(and (= ULTIMATE.start_main_~j~6 13) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 14)))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {32884#(and (= ULTIMATE.start_main_~j~6 14) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 15)))} is VALID [2019-01-31 15:08:01,535 INFO L273 TraceCheckUtils]: 52: Hoare triple {32884#(and (= ULTIMATE.start_main_~j~6 14) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 15)))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {32888#(and (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 16)) (= ULTIMATE.start_main_~j~6 15))} is VALID [2019-01-31 15:08:01,536 INFO L273 TraceCheckUtils]: 53: Hoare triple {32888#(and (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 16)) (= ULTIMATE.start_main_~j~6 15))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {32892#(and (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 17)) (= ULTIMATE.start_main_~j~6 16))} is VALID [2019-01-31 15:08:01,537 INFO L273 TraceCheckUtils]: 54: Hoare triple {32892#(and (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 17)) (= ULTIMATE.start_main_~j~6 16))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {32896#(and (= ULTIMATE.start_main_~j~6 17) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 18)))} is VALID [2019-01-31 15:08:01,538 INFO L273 TraceCheckUtils]: 55: Hoare triple {32896#(and (= ULTIMATE.start_main_~j~6 17) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 18)))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {32900#(and (= ULTIMATE.start_main_~j~6 18) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 19)))} is VALID [2019-01-31 15:08:01,539 INFO L273 TraceCheckUtils]: 56: Hoare triple {32900#(and (= ULTIMATE.start_main_~j~6 18) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 19)))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {32904#(and (= ULTIMATE.start_main_~j~6 19) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 20)))} is VALID [2019-01-31 15:08:01,540 INFO L273 TraceCheckUtils]: 57: Hoare triple {32904#(and (= ULTIMATE.start_main_~j~6 19) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 20)))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {32908#(and (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 21)) (= ULTIMATE.start_main_~j~6 20))} is VALID [2019-01-31 15:08:01,541 INFO L273 TraceCheckUtils]: 58: Hoare triple {32908#(and (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 21)) (= ULTIMATE.start_main_~j~6 20))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {32912#(and (= ULTIMATE.start_main_~j~6 21) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 22)))} is VALID [2019-01-31 15:08:01,542 INFO L273 TraceCheckUtils]: 59: Hoare triple {32912#(and (= ULTIMATE.start_main_~j~6 21) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 22)))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {32916#(and (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 23)) (= ULTIMATE.start_main_~j~6 22))} is VALID [2019-01-31 15:08:01,543 INFO L273 TraceCheckUtils]: 60: Hoare triple {32916#(and (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 23)) (= ULTIMATE.start_main_~j~6 22))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {32920#(and (= ULTIMATE.start_main_~j~6 23) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 24)))} is VALID [2019-01-31 15:08:01,544 INFO L273 TraceCheckUtils]: 61: Hoare triple {32920#(and (= ULTIMATE.start_main_~j~6 23) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 24)))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {32924#(and (= ULTIMATE.start_main_~j~6 24) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 25)))} is VALID [2019-01-31 15:08:01,545 INFO L273 TraceCheckUtils]: 62: Hoare triple {32924#(and (= ULTIMATE.start_main_~j~6 24) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 25)))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {32928#(and (= ULTIMATE.start_main_~j~6 25) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 26)))} is VALID [2019-01-31 15:08:01,546 INFO L273 TraceCheckUtils]: 63: Hoare triple {32928#(and (= ULTIMATE.start_main_~j~6 25) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 26)))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {32932#(and (= ULTIMATE.start_main_~j~6 26) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 27)))} is VALID [2019-01-31 15:08:01,547 INFO L273 TraceCheckUtils]: 64: Hoare triple {32932#(and (= ULTIMATE.start_main_~j~6 26) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 27)))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {32936#(and (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 28)) (= ULTIMATE.start_main_~j~6 27))} is VALID [2019-01-31 15:08:01,548 INFO L273 TraceCheckUtils]: 65: Hoare triple {32936#(and (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 28)) (= ULTIMATE.start_main_~j~6 27))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {32940#(and (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 29)) (= ULTIMATE.start_main_~j~6 28))} is VALID [2019-01-31 15:08:01,549 INFO L273 TraceCheckUtils]: 66: Hoare triple {32940#(and (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 29)) (= ULTIMATE.start_main_~j~6 28))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {32944#(and (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 30)) (= ULTIMATE.start_main_~j~6 29))} is VALID [2019-01-31 15:08:01,550 INFO L273 TraceCheckUtils]: 67: Hoare triple {32944#(and (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 30)) (= ULTIMATE.start_main_~j~6 29))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {32948#(and (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 31)) (= ULTIMATE.start_main_~j~6 30))} is VALID [2019-01-31 15:08:01,551 INFO L273 TraceCheckUtils]: 68: Hoare triple {32948#(and (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 31)) (= ULTIMATE.start_main_~j~6 30))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {32952#(and (= ULTIMATE.start_main_~j~6 31) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 32)))} is VALID [2019-01-31 15:08:01,552 INFO L273 TraceCheckUtils]: 69: Hoare triple {32952#(and (= ULTIMATE.start_main_~j~6 31) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 32)))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {32956#(and (= ULTIMATE.start_main_~j~6 32) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 33)))} is VALID [2019-01-31 15:08:01,553 INFO L273 TraceCheckUtils]: 70: Hoare triple {32956#(and (= ULTIMATE.start_main_~j~6 32) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 33)))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {32960#(and (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 34)) (= ULTIMATE.start_main_~j~6 33))} is VALID [2019-01-31 15:08:01,553 INFO L273 TraceCheckUtils]: 71: Hoare triple {32960#(and (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 34)) (= ULTIMATE.start_main_~j~6 33))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {32964#(and (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 35)) (= ULTIMATE.start_main_~j~6 34))} is VALID [2019-01-31 15:08:01,554 INFO L273 TraceCheckUtils]: 72: Hoare triple {32964#(and (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 35)) (= ULTIMATE.start_main_~j~6 34))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {32968#(and (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 36)) (= ULTIMATE.start_main_~j~6 35))} is VALID [2019-01-31 15:08:01,556 INFO L273 TraceCheckUtils]: 73: Hoare triple {32968#(and (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 36)) (= ULTIMATE.start_main_~j~6 35))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {32972#(and (<= 36 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 37)) (= (select ULTIMATE.start_main_~str1~6 0) (select ULTIMATE.start_main_~str2~6 35)))} is VALID [2019-01-31 15:08:01,557 INFO L273 TraceCheckUtils]: 74: Hoare triple {32972#(and (<= 36 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 37)) (= (select ULTIMATE.start_main_~str1~6 0) (select ULTIMATE.start_main_~str2~6 35)))} assume !(main_~i~6 >= 0);main_~j~6 := main_~MAX~6 - 1;main_~i~6 := 0;assume !!(main_~i~6 < main_~MAX~6);__VERIFIER_assert_#in~cond := (if main_~str1~6[main_~i~6] == main_~str2~6[main_~j~6] then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond;assume __VERIFIER_assert_~cond == 0;assume !false; {32639#false} is VALID [2019-01-31 15:08:01,557 INFO L273 TraceCheckUtils]: 75: Hoare triple {32639#false} assume !false; {32639#false} is VALID [2019-01-31 15:08:01,564 INFO L134 CoverageAnalysis]: Checked inductivity of 1332 backedges. 0 proven. 666 refuted. 0 times theorem prover too weak. 666 trivial. 0 not checked. [2019-01-31 15:08:01,564 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2019-01-31 15:08:01,707 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 5 [2019-01-31 15:08:01,709 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-01-31 15:08:01,721 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-31 15:08:01,721 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:22, output treesize:12 [2019-01-31 15:08:06,077 INFO L273 TraceCheckUtils]: 75: Hoare triple {32639#false} assume !false; {32639#false} is VALID [2019-01-31 15:08:06,078 INFO L273 TraceCheckUtils]: 74: Hoare triple {32982#(or (= (select ULTIMATE.start_main_~str1~6 0) (select ULTIMATE.start_main_~str2~6 (+ ULTIMATE.start_main_~MAX~6 (- 1)))) (<= 0 ULTIMATE.start_main_~i~6))} assume !(main_~i~6 >= 0);main_~j~6 := main_~MAX~6 - 1;main_~i~6 := 0;assume !!(main_~i~6 < main_~MAX~6);__VERIFIER_assert_#in~cond := (if main_~str1~6[main_~i~6] == main_~str2~6[main_~j~6] then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond;assume __VERIFIER_assert_~cond == 0;assume !false; {32639#false} is VALID [2019-01-31 15:08:06,079 INFO L273 TraceCheckUtils]: 73: Hoare triple {32986#(or (< ULTIMATE.start_main_~i~6 0) (< 0 ULTIMATE.start_main_~i~6) (= (+ ULTIMATE.start_main_~j~6 1) ULTIMATE.start_main_~MAX~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {32982#(or (= (select ULTIMATE.start_main_~str1~6 0) (select ULTIMATE.start_main_~str2~6 (+ ULTIMATE.start_main_~MAX~6 (- 1)))) (<= 0 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:08:06,080 INFO L273 TraceCheckUtils]: 72: Hoare triple {32990#(or (= (+ ULTIMATE.start_main_~j~6 2) ULTIMATE.start_main_~MAX~6) (< 1 ULTIMATE.start_main_~i~6) (< ULTIMATE.start_main_~i~6 1))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {32986#(or (< ULTIMATE.start_main_~i~6 0) (< 0 ULTIMATE.start_main_~i~6) (= (+ ULTIMATE.start_main_~j~6 1) ULTIMATE.start_main_~MAX~6))} is VALID [2019-01-31 15:08:06,082 INFO L273 TraceCheckUtils]: 71: Hoare triple {32994#(or (= (+ ULTIMATE.start_main_~j~6 3) ULTIMATE.start_main_~MAX~6) (< ULTIMATE.start_main_~i~6 2) (< 2 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {32990#(or (= (+ ULTIMATE.start_main_~j~6 2) ULTIMATE.start_main_~MAX~6) (< 1 ULTIMATE.start_main_~i~6) (< ULTIMATE.start_main_~i~6 1))} is VALID [2019-01-31 15:08:06,083 INFO L273 TraceCheckUtils]: 70: Hoare triple {32998#(or (= (+ ULTIMATE.start_main_~j~6 4) ULTIMATE.start_main_~MAX~6) (< ULTIMATE.start_main_~i~6 3) (< 3 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {32994#(or (= (+ ULTIMATE.start_main_~j~6 3) ULTIMATE.start_main_~MAX~6) (< ULTIMATE.start_main_~i~6 2) (< 2 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:08:06,084 INFO L273 TraceCheckUtils]: 69: Hoare triple {33002#(or (= (+ ULTIMATE.start_main_~j~6 5) ULTIMATE.start_main_~MAX~6) (< 4 ULTIMATE.start_main_~i~6) (< ULTIMATE.start_main_~i~6 4))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {32998#(or (= (+ ULTIMATE.start_main_~j~6 4) ULTIMATE.start_main_~MAX~6) (< ULTIMATE.start_main_~i~6 3) (< 3 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:08:06,085 INFO L273 TraceCheckUtils]: 68: Hoare triple {33006#(or (< ULTIMATE.start_main_~i~6 5) (< 5 ULTIMATE.start_main_~i~6) (= (+ ULTIMATE.start_main_~j~6 6) ULTIMATE.start_main_~MAX~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {33002#(or (= (+ ULTIMATE.start_main_~j~6 5) ULTIMATE.start_main_~MAX~6) (< 4 ULTIMATE.start_main_~i~6) (< ULTIMATE.start_main_~i~6 4))} is VALID [2019-01-31 15:08:06,086 INFO L273 TraceCheckUtils]: 67: Hoare triple {33010#(or (< ULTIMATE.start_main_~i~6 6) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 7)) (< 6 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {33006#(or (< ULTIMATE.start_main_~i~6 5) (< 5 ULTIMATE.start_main_~i~6) (= (+ ULTIMATE.start_main_~j~6 6) ULTIMATE.start_main_~MAX~6))} is VALID [2019-01-31 15:08:06,087 INFO L273 TraceCheckUtils]: 66: Hoare triple {33014#(or (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 8)) (< ULTIMATE.start_main_~i~6 7) (< 7 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {33010#(or (< ULTIMATE.start_main_~i~6 6) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 7)) (< 6 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:08:06,088 INFO L273 TraceCheckUtils]: 65: Hoare triple {33018#(or (< 8 ULTIMATE.start_main_~i~6) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 9)) (< ULTIMATE.start_main_~i~6 8))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {33014#(or (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 8)) (< ULTIMATE.start_main_~i~6 7) (< 7 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:08:06,089 INFO L273 TraceCheckUtils]: 64: Hoare triple {33022#(or (< ULTIMATE.start_main_~i~6 9) (= (+ ULTIMATE.start_main_~j~6 10) ULTIMATE.start_main_~MAX~6) (< 9 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {33018#(or (< 8 ULTIMATE.start_main_~i~6) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 9)) (< ULTIMATE.start_main_~i~6 8))} is VALID [2019-01-31 15:08:06,090 INFO L273 TraceCheckUtils]: 63: Hoare triple {33026#(or (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 11)) (< 10 ULTIMATE.start_main_~i~6) (< ULTIMATE.start_main_~i~6 10))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {33022#(or (< ULTIMATE.start_main_~i~6 9) (= (+ ULTIMATE.start_main_~j~6 10) ULTIMATE.start_main_~MAX~6) (< 9 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:08:06,091 INFO L273 TraceCheckUtils]: 62: Hoare triple {33030#(or (< ULTIMATE.start_main_~i~6 11) (= (+ ULTIMATE.start_main_~j~6 12) ULTIMATE.start_main_~MAX~6) (< 11 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {33026#(or (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 11)) (< 10 ULTIMATE.start_main_~i~6) (< ULTIMATE.start_main_~i~6 10))} is VALID [2019-01-31 15:08:06,092 INFO L273 TraceCheckUtils]: 61: Hoare triple {33034#(or (< 12 ULTIMATE.start_main_~i~6) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 13)) (< ULTIMATE.start_main_~i~6 12))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {33030#(or (< ULTIMATE.start_main_~i~6 11) (= (+ ULTIMATE.start_main_~j~6 12) ULTIMATE.start_main_~MAX~6) (< 11 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:08:06,093 INFO L273 TraceCheckUtils]: 60: Hoare triple {33038#(or (< ULTIMATE.start_main_~i~6 13) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 14)) (< 13 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {33034#(or (< 12 ULTIMATE.start_main_~i~6) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 13)) (< ULTIMATE.start_main_~i~6 12))} is VALID [2019-01-31 15:08:06,094 INFO L273 TraceCheckUtils]: 59: Hoare triple {33042#(or (< 14 ULTIMATE.start_main_~i~6) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 15)) (< ULTIMATE.start_main_~i~6 14))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {33038#(or (< ULTIMATE.start_main_~i~6 13) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 14)) (< 13 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:08:06,096 INFO L273 TraceCheckUtils]: 58: Hoare triple {33046#(or (< 15 ULTIMATE.start_main_~i~6) (< ULTIMATE.start_main_~i~6 15) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 16)))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {33042#(or (< 14 ULTIMATE.start_main_~i~6) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 15)) (< ULTIMATE.start_main_~i~6 14))} is VALID [2019-01-31 15:08:06,097 INFO L273 TraceCheckUtils]: 57: Hoare triple {33050#(or (< ULTIMATE.start_main_~i~6 16) (< 16 ULTIMATE.start_main_~i~6) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 17)))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {33046#(or (< 15 ULTIMATE.start_main_~i~6) (< ULTIMATE.start_main_~i~6 15) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 16)))} is VALID [2019-01-31 15:08:06,098 INFO L273 TraceCheckUtils]: 56: Hoare triple {33054#(or (< ULTIMATE.start_main_~i~6 17) (< 17 ULTIMATE.start_main_~i~6) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 18)))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {33050#(or (< ULTIMATE.start_main_~i~6 16) (< 16 ULTIMATE.start_main_~i~6) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 17)))} is VALID [2019-01-31 15:08:06,099 INFO L273 TraceCheckUtils]: 55: Hoare triple {33058#(or (< ULTIMATE.start_main_~i~6 18) (< 18 ULTIMATE.start_main_~i~6) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 19)))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {33054#(or (< ULTIMATE.start_main_~i~6 17) (< 17 ULTIMATE.start_main_~i~6) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 18)))} is VALID [2019-01-31 15:08:06,100 INFO L273 TraceCheckUtils]: 54: Hoare triple {33062#(or (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 20)) (< 19 ULTIMATE.start_main_~i~6) (< ULTIMATE.start_main_~i~6 19))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {33058#(or (< ULTIMATE.start_main_~i~6 18) (< 18 ULTIMATE.start_main_~i~6) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 19)))} is VALID [2019-01-31 15:08:06,101 INFO L273 TraceCheckUtils]: 53: Hoare triple {33066#(or (< ULTIMATE.start_main_~i~6 20) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 21)) (< 20 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {33062#(or (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 20)) (< 19 ULTIMATE.start_main_~i~6) (< ULTIMATE.start_main_~i~6 19))} is VALID [2019-01-31 15:08:06,102 INFO L273 TraceCheckUtils]: 52: Hoare triple {33070#(or (< 21 ULTIMATE.start_main_~i~6) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 22)) (< ULTIMATE.start_main_~i~6 21))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {33066#(or (< ULTIMATE.start_main_~i~6 20) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 21)) (< 20 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:08:06,103 INFO L273 TraceCheckUtils]: 51: Hoare triple {33074#(or (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 23)) (< ULTIMATE.start_main_~i~6 22) (< 22 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {33070#(or (< 21 ULTIMATE.start_main_~i~6) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 22)) (< ULTIMATE.start_main_~i~6 21))} is VALID [2019-01-31 15:08:06,104 INFO L273 TraceCheckUtils]: 50: Hoare triple {33078#(or (< ULTIMATE.start_main_~i~6 23) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 24)) (< 23 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {33074#(or (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 23)) (< ULTIMATE.start_main_~i~6 22) (< 22 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:08:06,105 INFO L273 TraceCheckUtils]: 49: Hoare triple {33082#(or (< 24 ULTIMATE.start_main_~i~6) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 25)) (< ULTIMATE.start_main_~i~6 24))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {33078#(or (< ULTIMATE.start_main_~i~6 23) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 24)) (< 23 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:08:06,106 INFO L273 TraceCheckUtils]: 48: Hoare triple {33086#(or (< 25 ULTIMATE.start_main_~i~6) (< ULTIMATE.start_main_~i~6 25) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 26)))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {33082#(or (< 24 ULTIMATE.start_main_~i~6) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 25)) (< ULTIMATE.start_main_~i~6 24))} is VALID [2019-01-31 15:08:06,107 INFO L273 TraceCheckUtils]: 47: Hoare triple {33090#(or (< 26 ULTIMATE.start_main_~i~6) (< ULTIMATE.start_main_~i~6 26) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 27)))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {33086#(or (< 25 ULTIMATE.start_main_~i~6) (< ULTIMATE.start_main_~i~6 25) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 26)))} is VALID [2019-01-31 15:08:06,109 INFO L273 TraceCheckUtils]: 46: Hoare triple {33094#(or (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 28)) (< 27 ULTIMATE.start_main_~i~6) (< ULTIMATE.start_main_~i~6 27))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {33090#(or (< 26 ULTIMATE.start_main_~i~6) (< ULTIMATE.start_main_~i~6 26) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 27)))} is VALID [2019-01-31 15:08:06,110 INFO L273 TraceCheckUtils]: 45: Hoare triple {33098#(or (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 29)) (< 28 ULTIMATE.start_main_~i~6) (< ULTIMATE.start_main_~i~6 28))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {33094#(or (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 28)) (< 27 ULTIMATE.start_main_~i~6) (< ULTIMATE.start_main_~i~6 27))} is VALID [2019-01-31 15:08:06,111 INFO L273 TraceCheckUtils]: 44: Hoare triple {33102#(or (< 29 ULTIMATE.start_main_~i~6) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 30)) (< ULTIMATE.start_main_~i~6 29))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {33098#(or (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 29)) (< 28 ULTIMATE.start_main_~i~6) (< ULTIMATE.start_main_~i~6 28))} is VALID [2019-01-31 15:08:06,112 INFO L273 TraceCheckUtils]: 43: Hoare triple {33106#(or (< ULTIMATE.start_main_~i~6 30) (= (+ ULTIMATE.start_main_~j~6 31) ULTIMATE.start_main_~MAX~6) (< 30 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {33102#(or (< 29 ULTIMATE.start_main_~i~6) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 30)) (< ULTIMATE.start_main_~i~6 29))} is VALID [2019-01-31 15:08:06,113 INFO L273 TraceCheckUtils]: 42: Hoare triple {33110#(or (< 31 ULTIMATE.start_main_~i~6) (= (+ ULTIMATE.start_main_~j~6 32) ULTIMATE.start_main_~MAX~6) (< ULTIMATE.start_main_~i~6 31))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {33106#(or (< ULTIMATE.start_main_~i~6 30) (= (+ ULTIMATE.start_main_~j~6 31) ULTIMATE.start_main_~MAX~6) (< 30 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:08:06,114 INFO L273 TraceCheckUtils]: 41: Hoare triple {33114#(or (= (+ ULTIMATE.start_main_~j~6 33) ULTIMATE.start_main_~MAX~6) (< ULTIMATE.start_main_~i~6 32) (< 32 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {33110#(or (< 31 ULTIMATE.start_main_~i~6) (= (+ ULTIMATE.start_main_~j~6 32) ULTIMATE.start_main_~MAX~6) (< ULTIMATE.start_main_~i~6 31))} is VALID [2019-01-31 15:08:06,115 INFO L273 TraceCheckUtils]: 40: Hoare triple {33118#(or (< 33 ULTIMATE.start_main_~i~6) (< ULTIMATE.start_main_~i~6 33) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 34)))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {33114#(or (= (+ ULTIMATE.start_main_~j~6 33) ULTIMATE.start_main_~MAX~6) (< ULTIMATE.start_main_~i~6 32) (< 32 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:08:06,116 INFO L273 TraceCheckUtils]: 39: Hoare triple {33122#(or (= (+ ULTIMATE.start_main_~j~6 35) ULTIMATE.start_main_~MAX~6) (< 34 ULTIMATE.start_main_~i~6) (< ULTIMATE.start_main_~i~6 34))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {33118#(or (< 33 ULTIMATE.start_main_~i~6) (< ULTIMATE.start_main_~i~6 33) (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~j~6 34)))} is VALID [2019-01-31 15:08:06,117 INFO L273 TraceCheckUtils]: 38: Hoare triple {33126#(or (< ULTIMATE.start_main_~i~6 35) (= (+ ULTIMATE.start_main_~j~6 36) ULTIMATE.start_main_~MAX~6) (< 35 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {33122#(or (= (+ ULTIMATE.start_main_~j~6 35) ULTIMATE.start_main_~MAX~6) (< 34 ULTIMATE.start_main_~i~6) (< ULTIMATE.start_main_~i~6 34))} is VALID [2019-01-31 15:08:06,118 INFO L273 TraceCheckUtils]: 37: Hoare triple {32638#true} assume !(main_~i~6 < main_~MAX~6);main_~str1~6 := main_~str1~6[main_~MAX~6 - 1 := 0];main_~j~6 := 0;main_~i~6 := main_~MAX~6 - 1; {33126#(or (< ULTIMATE.start_main_~i~6 35) (= (+ ULTIMATE.start_main_~j~6 36) ULTIMATE.start_main_~MAX~6) (< 35 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:08:06,118 INFO L273 TraceCheckUtils]: 36: Hoare triple {32638#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {32638#true} is VALID [2019-01-31 15:08:06,119 INFO L273 TraceCheckUtils]: 35: Hoare triple {32638#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {32638#true} is VALID [2019-01-31 15:08:06,119 INFO L273 TraceCheckUtils]: 34: Hoare triple {32638#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {32638#true} is VALID [2019-01-31 15:08:06,119 INFO L273 TraceCheckUtils]: 33: Hoare triple {32638#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {32638#true} is VALID [2019-01-31 15:08:06,119 INFO L273 TraceCheckUtils]: 32: Hoare triple {32638#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {32638#true} is VALID [2019-01-31 15:08:06,119 INFO L273 TraceCheckUtils]: 31: Hoare triple {32638#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {32638#true} is VALID [2019-01-31 15:08:06,119 INFO L273 TraceCheckUtils]: 30: Hoare triple {32638#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {32638#true} is VALID [2019-01-31 15:08:06,120 INFO L273 TraceCheckUtils]: 29: Hoare triple {32638#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {32638#true} is VALID [2019-01-31 15:08:06,120 INFO L273 TraceCheckUtils]: 28: Hoare triple {32638#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {32638#true} is VALID [2019-01-31 15:08:06,120 INFO L273 TraceCheckUtils]: 27: Hoare triple {32638#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {32638#true} is VALID [2019-01-31 15:08:06,120 INFO L273 TraceCheckUtils]: 26: Hoare triple {32638#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {32638#true} is VALID [2019-01-31 15:08:06,120 INFO L273 TraceCheckUtils]: 25: Hoare triple {32638#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {32638#true} is VALID [2019-01-31 15:08:06,120 INFO L273 TraceCheckUtils]: 24: Hoare triple {32638#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {32638#true} is VALID [2019-01-31 15:08:06,121 INFO L273 TraceCheckUtils]: 23: Hoare triple {32638#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {32638#true} is VALID [2019-01-31 15:08:06,121 INFO L273 TraceCheckUtils]: 22: Hoare triple {32638#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {32638#true} is VALID [2019-01-31 15:08:06,121 INFO L273 TraceCheckUtils]: 21: Hoare triple {32638#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {32638#true} is VALID [2019-01-31 15:08:06,121 INFO L273 TraceCheckUtils]: 20: Hoare triple {32638#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {32638#true} is VALID [2019-01-31 15:08:06,121 INFO L273 TraceCheckUtils]: 19: Hoare triple {32638#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {32638#true} is VALID [2019-01-31 15:08:06,121 INFO L273 TraceCheckUtils]: 18: Hoare triple {32638#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {32638#true} is VALID [2019-01-31 15:08:06,121 INFO L273 TraceCheckUtils]: 17: Hoare triple {32638#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {32638#true} is VALID [2019-01-31 15:08:06,121 INFO L273 TraceCheckUtils]: 16: Hoare triple {32638#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {32638#true} is VALID [2019-01-31 15:08:06,122 INFO L273 TraceCheckUtils]: 15: Hoare triple {32638#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {32638#true} is VALID [2019-01-31 15:08:06,122 INFO L273 TraceCheckUtils]: 14: Hoare triple {32638#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {32638#true} is VALID [2019-01-31 15:08:06,122 INFO L273 TraceCheckUtils]: 13: Hoare triple {32638#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {32638#true} is VALID [2019-01-31 15:08:06,122 INFO L273 TraceCheckUtils]: 12: Hoare triple {32638#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {32638#true} is VALID [2019-01-31 15:08:06,122 INFO L273 TraceCheckUtils]: 11: Hoare triple {32638#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {32638#true} is VALID [2019-01-31 15:08:06,122 INFO L273 TraceCheckUtils]: 10: Hoare triple {32638#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {32638#true} is VALID [2019-01-31 15:08:06,122 INFO L273 TraceCheckUtils]: 9: Hoare triple {32638#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {32638#true} is VALID [2019-01-31 15:08:06,122 INFO L273 TraceCheckUtils]: 8: Hoare triple {32638#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {32638#true} is VALID [2019-01-31 15:08:06,122 INFO L273 TraceCheckUtils]: 7: Hoare triple {32638#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {32638#true} is VALID [2019-01-31 15:08:06,122 INFO L273 TraceCheckUtils]: 6: Hoare triple {32638#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {32638#true} is VALID [2019-01-31 15:08:06,123 INFO L273 TraceCheckUtils]: 5: Hoare triple {32638#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {32638#true} is VALID [2019-01-31 15:08:06,123 INFO L273 TraceCheckUtils]: 4: Hoare triple {32638#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {32638#true} is VALID [2019-01-31 15:08:06,123 INFO L273 TraceCheckUtils]: 3: Hoare triple {32638#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {32638#true} is VALID [2019-01-31 15:08:06,123 INFO L273 TraceCheckUtils]: 2: Hoare triple {32638#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {32638#true} is VALID [2019-01-31 15:08:06,123 INFO L273 TraceCheckUtils]: 1: Hoare triple {32638#true} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {32638#true} is VALID [2019-01-31 15:08:06,123 INFO L273 TraceCheckUtils]: 0: Hoare triple {32638#true} havoc main_#res;havoc main_#t~nondet0, main_#t~nondet2, main_#t~post1, main_#t~post4, main_#t~post3, main_#t~post6, main_#t~post5, main_~MAX~6, main_~str1~6, main_~str2~6, main_~cont~6, main_~i~6, main_~j~6;main_~MAX~6 := (if main_#t~nondet0 % 4294967296 % 4294967296 <= 2147483647 then main_#t~nondet0 % 4294967296 % 4294967296 else main_#t~nondet0 % 4294967296 % 4294967296 - 4294967296);havoc main_#t~nondet0;havoc main_~str1~6;havoc main_~str2~6;havoc main_~cont~6;havoc main_~i~6;havoc main_~j~6;main_~cont~6 := 0;main_~i~6 := 0; {32638#true} is VALID [2019-01-31 15:08:06,131 INFO L134 CoverageAnalysis]: Checked inductivity of 1332 backedges. 0 proven. 666 refuted. 0 times theorem prover too weak. 666 trivial. 0 not checked. [2019-01-31 15:08:06,149 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-01-31 15:08:06,149 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [75, 39, 39] total 150 [2019-01-31 15:08:06,149 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-01-31 15:08:06,150 INFO L78 Accepts]: Start accepts. Automaton has 113 states. Word has length 76 [2019-01-31 15:08:06,150 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-01-31 15:08:06,150 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 113 states. [2019-01-31 15:08:06,254 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 116 edges. 116 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-01-31 15:08:06,254 INFO L459 AbstractCegarLoop]: Interpolant automaton has 113 states [2019-01-31 15:08:06,255 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 113 interpolants. [2019-01-31 15:08:06,256 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2962, Invalid=19388, Unknown=0, NotChecked=0, Total=22350 [2019-01-31 15:08:06,256 INFO L87 Difference]: Start difference. First operand 77 states and 78 transitions. Second operand 113 states. [2019-01-31 15:08:35,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 15:08:35,374 INFO L93 Difference]: Finished difference Result 119 states and 123 transitions. [2019-01-31 15:08:35,374 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 116 states. [2019-01-31 15:08:35,374 INFO L78 Accepts]: Start accepts. Automaton has 113 states. Word has length 76 [2019-01-31 15:08:35,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-31 15:08:35,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 113 states. [2019-01-31 15:08:35,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 123 transitions. [2019-01-31 15:08:35,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 113 states. [2019-01-31 15:08:35,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 123 transitions. [2019-01-31 15:08:35,377 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 116 states and 123 transitions. [2019-01-31 15:08:35,510 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 123 edges. 123 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-01-31 15:08:35,511 INFO L225 Difference]: With dead ends: 119 [2019-01-31 15:08:35,511 INFO L226 Difference]: Without dead ends: 79 [2019-01-31 15:08:35,513 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 266 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 189 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2924 ImplicationChecksByTransitivity, 14.1s TimeCoverageRelationStatistics Valid=4687, Invalid=31603, Unknown=0, NotChecked=0, Total=36290 [2019-01-31 15:08:35,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2019-01-31 15:08:37,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 79. [2019-01-31 15:08:37,723 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-01-31 15:08:37,724 INFO L82 GeneralOperation]: Start isEquivalent. First operand 79 states. Second operand 79 states. [2019-01-31 15:08:37,724 INFO L74 IsIncluded]: Start isIncluded. First operand 79 states. Second operand 79 states. [2019-01-31 15:08:37,724 INFO L87 Difference]: Start difference. First operand 79 states. Second operand 79 states. [2019-01-31 15:08:37,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 15:08:37,725 INFO L93 Difference]: Finished difference Result 79 states and 80 transitions. [2019-01-31 15:08:37,725 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 80 transitions. [2019-01-31 15:08:37,726 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-31 15:08:37,726 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-01-31 15:08:37,726 INFO L74 IsIncluded]: Start isIncluded. First operand 79 states. Second operand 79 states. [2019-01-31 15:08:37,726 INFO L87 Difference]: Start difference. First operand 79 states. Second operand 79 states. [2019-01-31 15:08:37,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 15:08:37,727 INFO L93 Difference]: Finished difference Result 79 states and 80 transitions. [2019-01-31 15:08:37,727 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 80 transitions. [2019-01-31 15:08:37,727 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-31 15:08:37,727 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-01-31 15:08:37,727 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-01-31 15:08:37,728 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-01-31 15:08:37,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 79 states. [2019-01-31 15:08:37,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 80 transitions. [2019-01-31 15:08:37,728 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 80 transitions. Word has length 76 [2019-01-31 15:08:37,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-31 15:08:37,728 INFO L480 AbstractCegarLoop]: Abstraction has 79 states and 80 transitions. [2019-01-31 15:08:37,729 INFO L481 AbstractCegarLoop]: Interpolant automaton has 113 states. [2019-01-31 15:08:37,729 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 80 transitions. [2019-01-31 15:08:37,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2019-01-31 15:08:37,729 INFO L394 BasicCegarLoop]: Found error trace [2019-01-31 15:08:37,729 INFO L402 BasicCegarLoop]: trace histogram [37, 37, 1, 1, 1, 1] [2019-01-31 15:08:37,729 INFO L423 AbstractCegarLoop]: === Iteration 57 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2019-01-31 15:08:37,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-31 15:08:37,729 INFO L82 PathProgramCache]: Analyzing trace with hash -1075627403, now seen corresponding path program 55 times [2019-01-31 15:08:37,729 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-01-31 15:08:37,730 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-31 15:08:37,730 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-01-31 15:08:37,730 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-31 15:08:37,730 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-01-31 15:08:37,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-31 15:08:42,127 INFO L273 TraceCheckUtils]: 0: Hoare triple {33871#true} havoc main_#res;havoc main_#t~nondet0, main_#t~nondet2, main_#t~post1, main_#t~post4, main_#t~post3, main_#t~post6, main_#t~post5, main_~MAX~6, main_~str1~6, main_~str2~6, main_~cont~6, main_~i~6, main_~j~6;main_~MAX~6 := (if main_#t~nondet0 % 4294967296 % 4294967296 <= 2147483647 then main_#t~nondet0 % 4294967296 % 4294967296 else main_#t~nondet0 % 4294967296 % 4294967296 - 4294967296);havoc main_#t~nondet0;havoc main_~str1~6;havoc main_~str2~6;havoc main_~cont~6;havoc main_~i~6;havoc main_~j~6;main_~cont~6 := 0;main_~i~6 := 0; {33873#(and (<= ULTIMATE.start_main_~i~6 0) (<= 0 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:08:42,128 INFO L273 TraceCheckUtils]: 1: Hoare triple {33873#(and (<= ULTIMATE.start_main_~i~6 0) (<= 0 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {33874#(and (<= ULTIMATE.start_main_~i~6 1) (<= 1 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:08:42,129 INFO L273 TraceCheckUtils]: 2: Hoare triple {33874#(and (<= ULTIMATE.start_main_~i~6 1) (<= 1 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {33875#(and (<= ULTIMATE.start_main_~i~6 2) (<= 2 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:08:42,130 INFO L273 TraceCheckUtils]: 3: Hoare triple {33875#(and (<= ULTIMATE.start_main_~i~6 2) (<= 2 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {33876#(and (<= 3 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 3))} is VALID [2019-01-31 15:08:42,131 INFO L273 TraceCheckUtils]: 4: Hoare triple {33876#(and (<= 3 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 3))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {33877#(and (<= ULTIMATE.start_main_~i~6 4) (<= 4 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:08:42,134 INFO L273 TraceCheckUtils]: 5: Hoare triple {33877#(and (<= ULTIMATE.start_main_~i~6 4) (<= 4 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {33878#(and (<= 5 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 5))} is VALID [2019-01-31 15:08:42,135 INFO L273 TraceCheckUtils]: 6: Hoare triple {33878#(and (<= 5 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 5))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {33879#(and (<= ULTIMATE.start_main_~i~6 6) (<= 6 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:08:42,136 INFO L273 TraceCheckUtils]: 7: Hoare triple {33879#(and (<= ULTIMATE.start_main_~i~6 6) (<= 6 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {33880#(and (<= 7 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 7))} is VALID [2019-01-31 15:08:42,137 INFO L273 TraceCheckUtils]: 8: Hoare triple {33880#(and (<= 7 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 7))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {33881#(and (<= ULTIMATE.start_main_~i~6 8) (<= 8 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:08:42,138 INFO L273 TraceCheckUtils]: 9: Hoare triple {33881#(and (<= ULTIMATE.start_main_~i~6 8) (<= 8 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {33882#(and (<= ULTIMATE.start_main_~i~6 9) (<= 9 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:08:42,139 INFO L273 TraceCheckUtils]: 10: Hoare triple {33882#(and (<= ULTIMATE.start_main_~i~6 9) (<= 9 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {33883#(and (<= ULTIMATE.start_main_~i~6 10) (<= 10 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:08:42,140 INFO L273 TraceCheckUtils]: 11: Hoare triple {33883#(and (<= ULTIMATE.start_main_~i~6 10) (<= 10 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {33884#(and (<= 11 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 11))} is VALID [2019-01-31 15:08:42,140 INFO L273 TraceCheckUtils]: 12: Hoare triple {33884#(and (<= 11 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 11))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {33885#(and (<= ULTIMATE.start_main_~i~6 12) (<= 12 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:08:42,141 INFO L273 TraceCheckUtils]: 13: Hoare triple {33885#(and (<= ULTIMATE.start_main_~i~6 12) (<= 12 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {33886#(and (<= ULTIMATE.start_main_~i~6 13) (<= 13 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:08:42,142 INFO L273 TraceCheckUtils]: 14: Hoare triple {33886#(and (<= ULTIMATE.start_main_~i~6 13) (<= 13 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {33887#(and (<= ULTIMATE.start_main_~i~6 14) (<= 14 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:08:42,143 INFO L273 TraceCheckUtils]: 15: Hoare triple {33887#(and (<= ULTIMATE.start_main_~i~6 14) (<= 14 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {33888#(and (<= 15 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 15))} is VALID [2019-01-31 15:08:42,144 INFO L273 TraceCheckUtils]: 16: Hoare triple {33888#(and (<= 15 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 15))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {33889#(and (<= 16 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 16))} is VALID [2019-01-31 15:08:42,145 INFO L273 TraceCheckUtils]: 17: Hoare triple {33889#(and (<= 16 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 16))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {33890#(and (<= ULTIMATE.start_main_~i~6 17) (<= 17 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:08:42,146 INFO L273 TraceCheckUtils]: 18: Hoare triple {33890#(and (<= ULTIMATE.start_main_~i~6 17) (<= 17 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {33891#(and (<= ULTIMATE.start_main_~i~6 18) (<= 18 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:08:42,147 INFO L273 TraceCheckUtils]: 19: Hoare triple {33891#(and (<= ULTIMATE.start_main_~i~6 18) (<= 18 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {33892#(and (<= ULTIMATE.start_main_~i~6 19) (<= 19 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:08:42,148 INFO L273 TraceCheckUtils]: 20: Hoare triple {33892#(and (<= ULTIMATE.start_main_~i~6 19) (<= 19 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {33893#(and (<= ULTIMATE.start_main_~i~6 20) (<= 20 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:08:42,149 INFO L273 TraceCheckUtils]: 21: Hoare triple {33893#(and (<= ULTIMATE.start_main_~i~6 20) (<= 20 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {33894#(and (<= ULTIMATE.start_main_~i~6 21) (<= 21 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:08:42,150 INFO L273 TraceCheckUtils]: 22: Hoare triple {33894#(and (<= ULTIMATE.start_main_~i~6 21) (<= 21 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {33895#(and (<= 22 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 22))} is VALID [2019-01-31 15:08:42,151 INFO L273 TraceCheckUtils]: 23: Hoare triple {33895#(and (<= 22 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 22))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {33896#(and (<= 23 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 23))} is VALID [2019-01-31 15:08:42,152 INFO L273 TraceCheckUtils]: 24: Hoare triple {33896#(and (<= 23 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 23))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {33897#(and (<= ULTIMATE.start_main_~i~6 24) (<= 24 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:08:42,153 INFO L273 TraceCheckUtils]: 25: Hoare triple {33897#(and (<= ULTIMATE.start_main_~i~6 24) (<= 24 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {33898#(and (<= ULTIMATE.start_main_~i~6 25) (<= 25 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:08:42,154 INFO L273 TraceCheckUtils]: 26: Hoare triple {33898#(and (<= ULTIMATE.start_main_~i~6 25) (<= 25 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {33899#(and (<= 26 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 26))} is VALID [2019-01-31 15:08:42,155 INFO L273 TraceCheckUtils]: 27: Hoare triple {33899#(and (<= 26 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 26))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {33900#(and (<= ULTIMATE.start_main_~i~6 27) (<= 27 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:08:42,155 INFO L273 TraceCheckUtils]: 28: Hoare triple {33900#(and (<= ULTIMATE.start_main_~i~6 27) (<= 27 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {33901#(and (<= ULTIMATE.start_main_~i~6 28) (<= 28 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:08:42,156 INFO L273 TraceCheckUtils]: 29: Hoare triple {33901#(and (<= ULTIMATE.start_main_~i~6 28) (<= 28 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {33902#(and (<= 29 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 29))} is VALID [2019-01-31 15:08:42,157 INFO L273 TraceCheckUtils]: 30: Hoare triple {33902#(and (<= 29 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 29))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {33903#(and (<= 30 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 30))} is VALID [2019-01-31 15:08:42,158 INFO L273 TraceCheckUtils]: 31: Hoare triple {33903#(and (<= 30 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 30))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {33904#(and (<= ULTIMATE.start_main_~i~6 31) (<= 31 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:08:42,159 INFO L273 TraceCheckUtils]: 32: Hoare triple {33904#(and (<= ULTIMATE.start_main_~i~6 31) (<= 31 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {33905#(and (<= 32 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 32))} is VALID [2019-01-31 15:08:42,160 INFO L273 TraceCheckUtils]: 33: Hoare triple {33905#(and (<= 32 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 32))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {33906#(and (<= 33 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 33))} is VALID [2019-01-31 15:08:42,161 INFO L273 TraceCheckUtils]: 34: Hoare triple {33906#(and (<= 33 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 33))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {33907#(and (<= ULTIMATE.start_main_~i~6 34) (<= 34 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:08:42,162 INFO L273 TraceCheckUtils]: 35: Hoare triple {33907#(and (<= ULTIMATE.start_main_~i~6 34) (<= 34 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {33908#(and (<= ULTIMATE.start_main_~i~6 35) (<= 35 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:08:42,163 INFO L273 TraceCheckUtils]: 36: Hoare triple {33908#(and (<= ULTIMATE.start_main_~i~6 35) (<= 35 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {33909#(or (not (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 1))) (and (<= 36 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 36)))} is VALID [2019-01-31 15:08:42,164 INFO L273 TraceCheckUtils]: 37: Hoare triple {33909#(or (not (= ULTIMATE.start_main_~MAX~6 (+ ULTIMATE.start_main_~i~6 1))) (and (<= 36 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 36)))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {33910#(or (<= (+ ULTIMATE.start_main_~i~6 1) ULTIMATE.start_main_~MAX~6) (= 37 ULTIMATE.start_main_~MAX~6))} is VALID [2019-01-31 15:08:42,165 INFO L273 TraceCheckUtils]: 38: Hoare triple {33910#(or (<= (+ ULTIMATE.start_main_~i~6 1) ULTIMATE.start_main_~MAX~6) (= 37 ULTIMATE.start_main_~MAX~6))} assume !(main_~i~6 < main_~MAX~6);main_~str1~6 := main_~str1~6[main_~MAX~6 - 1 := 0];main_~j~6 := 0;main_~i~6 := main_~MAX~6 - 1; {33911#(= (+ ULTIMATE.start_main_~j~6 37) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:08:42,166 INFO L273 TraceCheckUtils]: 39: Hoare triple {33911#(= (+ ULTIMATE.start_main_~j~6 37) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {33912#(= (+ ULTIMATE.start_main_~j~6 36) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:08:42,167 INFO L273 TraceCheckUtils]: 40: Hoare triple {33912#(= (+ ULTIMATE.start_main_~j~6 36) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {33913#(= (+ ULTIMATE.start_main_~j~6 35) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:08:42,168 INFO L273 TraceCheckUtils]: 41: Hoare triple {33913#(= (+ ULTIMATE.start_main_~j~6 35) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {33914#(= (+ ULTIMATE.start_main_~j~6 34) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:08:42,169 INFO L273 TraceCheckUtils]: 42: Hoare triple {33914#(= (+ ULTIMATE.start_main_~j~6 34) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {33915#(= (+ ULTIMATE.start_main_~j~6 33) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:08:42,170 INFO L273 TraceCheckUtils]: 43: Hoare triple {33915#(= (+ ULTIMATE.start_main_~j~6 33) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {33916#(= (+ ULTIMATE.start_main_~j~6 32) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:08:42,171 INFO L273 TraceCheckUtils]: 44: Hoare triple {33916#(= (+ ULTIMATE.start_main_~j~6 32) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {33917#(= (+ ULTIMATE.start_main_~j~6 31) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:08:42,172 INFO L273 TraceCheckUtils]: 45: Hoare triple {33917#(= (+ ULTIMATE.start_main_~j~6 31) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {33918#(= (+ ULTIMATE.start_main_~j~6 30) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:08:42,173 INFO L273 TraceCheckUtils]: 46: Hoare triple {33918#(= (+ ULTIMATE.start_main_~j~6 30) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {33919#(= (+ ULTIMATE.start_main_~j~6 29) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:08:42,174 INFO L273 TraceCheckUtils]: 47: Hoare triple {33919#(= (+ ULTIMATE.start_main_~j~6 29) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {33920#(= (+ ULTIMATE.start_main_~j~6 28) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:08:42,175 INFO L273 TraceCheckUtils]: 48: Hoare triple {33920#(= (+ ULTIMATE.start_main_~j~6 28) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {33921#(= (+ ULTIMATE.start_main_~j~6 27) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:08:42,176 INFO L273 TraceCheckUtils]: 49: Hoare triple {33921#(= (+ ULTIMATE.start_main_~j~6 27) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {33922#(= (+ ULTIMATE.start_main_~j~6 26) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:08:42,177 INFO L273 TraceCheckUtils]: 50: Hoare triple {33922#(= (+ ULTIMATE.start_main_~j~6 26) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {33923#(= (+ ULTIMATE.start_main_~j~6 25) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:08:42,178 INFO L273 TraceCheckUtils]: 51: Hoare triple {33923#(= (+ ULTIMATE.start_main_~j~6 25) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {33924#(= (+ ULTIMATE.start_main_~j~6 24) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:08:42,179 INFO L273 TraceCheckUtils]: 52: Hoare triple {33924#(= (+ ULTIMATE.start_main_~j~6 24) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {33925#(= (+ ULTIMATE.start_main_~j~6 23) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:08:42,180 INFO L273 TraceCheckUtils]: 53: Hoare triple {33925#(= (+ ULTIMATE.start_main_~j~6 23) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {33926#(= (+ ULTIMATE.start_main_~j~6 22) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:08:42,181 INFO L273 TraceCheckUtils]: 54: Hoare triple {33926#(= (+ ULTIMATE.start_main_~j~6 22) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {33927#(= (+ ULTIMATE.start_main_~j~6 21) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:08:42,182 INFO L273 TraceCheckUtils]: 55: Hoare triple {33927#(= (+ ULTIMATE.start_main_~j~6 21) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {33928#(= (+ ULTIMATE.start_main_~j~6 20) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:08:42,183 INFO L273 TraceCheckUtils]: 56: Hoare triple {33928#(= (+ ULTIMATE.start_main_~j~6 20) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {33929#(= (+ ULTIMATE.start_main_~j~6 19) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:08:42,183 INFO L273 TraceCheckUtils]: 57: Hoare triple {33929#(= (+ ULTIMATE.start_main_~j~6 19) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {33930#(= (+ ULTIMATE.start_main_~j~6 18) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:08:42,184 INFO L273 TraceCheckUtils]: 58: Hoare triple {33930#(= (+ ULTIMATE.start_main_~j~6 18) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {33931#(= (+ ULTIMATE.start_main_~j~6 17) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:08:42,185 INFO L273 TraceCheckUtils]: 59: Hoare triple {33931#(= (+ ULTIMATE.start_main_~j~6 17) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {33932#(= (+ ULTIMATE.start_main_~j~6 16) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:08:42,186 INFO L273 TraceCheckUtils]: 60: Hoare triple {33932#(= (+ ULTIMATE.start_main_~j~6 16) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {33933#(= (+ ULTIMATE.start_main_~j~6 15) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:08:42,187 INFO L273 TraceCheckUtils]: 61: Hoare triple {33933#(= (+ ULTIMATE.start_main_~j~6 15) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {33934#(= (+ ULTIMATE.start_main_~j~6 14) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:08:42,188 INFO L273 TraceCheckUtils]: 62: Hoare triple {33934#(= (+ ULTIMATE.start_main_~j~6 14) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {33935#(= (+ ULTIMATE.start_main_~j~6 13) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:08:42,189 INFO L273 TraceCheckUtils]: 63: Hoare triple {33935#(= (+ ULTIMATE.start_main_~j~6 13) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {33936#(= (+ ULTIMATE.start_main_~j~6 12) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:08:42,190 INFO L273 TraceCheckUtils]: 64: Hoare triple {33936#(= (+ ULTIMATE.start_main_~j~6 12) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {33937#(= (+ ULTIMATE.start_main_~j~6 11) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:08:42,191 INFO L273 TraceCheckUtils]: 65: Hoare triple {33937#(= (+ ULTIMATE.start_main_~j~6 11) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {33938#(= (+ ULTIMATE.start_main_~j~6 10) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:08:42,192 INFO L273 TraceCheckUtils]: 66: Hoare triple {33938#(= (+ ULTIMATE.start_main_~j~6 10) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {33939#(= (+ ULTIMATE.start_main_~j~6 9) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:08:42,193 INFO L273 TraceCheckUtils]: 67: Hoare triple {33939#(= (+ ULTIMATE.start_main_~j~6 9) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {33940#(= (+ ULTIMATE.start_main_~j~6 8) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:08:42,194 INFO L273 TraceCheckUtils]: 68: Hoare triple {33940#(= (+ ULTIMATE.start_main_~j~6 8) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {33941#(= (+ ULTIMATE.start_main_~j~6 7) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:08:42,195 INFO L273 TraceCheckUtils]: 69: Hoare triple {33941#(= (+ ULTIMATE.start_main_~j~6 7) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {33942#(= (+ ULTIMATE.start_main_~j~6 6) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:08:42,196 INFO L273 TraceCheckUtils]: 70: Hoare triple {33942#(= (+ ULTIMATE.start_main_~j~6 6) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {33943#(= (+ ULTIMATE.start_main_~j~6 5) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:08:42,197 INFO L273 TraceCheckUtils]: 71: Hoare triple {33943#(= (+ ULTIMATE.start_main_~j~6 5) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {33944#(= (+ ULTIMATE.start_main_~j~6 4) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:08:42,198 INFO L273 TraceCheckUtils]: 72: Hoare triple {33944#(= (+ ULTIMATE.start_main_~j~6 4) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {33945#(= (+ ULTIMATE.start_main_~j~6 3) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:08:42,199 INFO L273 TraceCheckUtils]: 73: Hoare triple {33945#(= (+ ULTIMATE.start_main_~j~6 3) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {33946#(= (+ ULTIMATE.start_main_~j~6 2) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:08:42,200 INFO L273 TraceCheckUtils]: 74: Hoare triple {33946#(= (+ ULTIMATE.start_main_~j~6 2) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {33947#(= (+ ULTIMATE.start_main_~j~6 1) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:08:42,201 INFO L273 TraceCheckUtils]: 75: Hoare triple {33947#(= (+ ULTIMATE.start_main_~j~6 1) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {33948#(= (select ULTIMATE.start_main_~str1~6 0) (select ULTIMATE.start_main_~str2~6 (+ ULTIMATE.start_main_~MAX~6 (- 1))))} is VALID [2019-01-31 15:08:42,202 INFO L273 TraceCheckUtils]: 76: Hoare triple {33948#(= (select ULTIMATE.start_main_~str1~6 0) (select ULTIMATE.start_main_~str2~6 (+ ULTIMATE.start_main_~MAX~6 (- 1))))} assume !(main_~i~6 >= 0);main_~j~6 := main_~MAX~6 - 1;main_~i~6 := 0;assume !!(main_~i~6 < main_~MAX~6);__VERIFIER_assert_#in~cond := (if main_~str1~6[main_~i~6] == main_~str2~6[main_~j~6] then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond;assume __VERIFIER_assert_~cond == 0;assume !false; {33872#false} is VALID [2019-01-31 15:08:42,202 INFO L273 TraceCheckUtils]: 77: Hoare triple {33872#false} assume !false; {33872#false} is VALID [2019-01-31 15:08:42,211 INFO L134 CoverageAnalysis]: Checked inductivity of 1406 backedges. 0 proven. 1406 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-31 15:08:42,211 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-31 15:08:42,211 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-01-31 15:08:42,211 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-01-31 15:08:42,211 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-01-31 15:08:42,211 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-31 15:08:42,211 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 56 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 56 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-01-31 15:08:42,222 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-31 15:08:42,222 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2019-01-31 15:08:42,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-31 15:08:42,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-31 15:08:42,329 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-31 15:08:46,292 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2019-01-31 15:08:46,293 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-01-31 15:08:46,301 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-31 15:08:46,301 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:15, output treesize:14 [2019-01-31 15:08:46,304 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-01-31 15:08:46,304 WARN L398 uantifierElimination]: Input elimination task: ∃ [v_ULTIMATE.start_main_~str2~6_1033]. (and (<= ULTIMATE.start_main_~MAX~6 37) (= ULTIMATE.start_main_~str2~6 (store v_ULTIMATE.start_main_~str2~6_1033 36 (select ULTIMATE.start_main_~str1~6 0))) (<= 37 ULTIMATE.start_main_~MAX~6)) [2019-01-31 15:08:46,304 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= (select ULTIMATE.start_main_~str1~6 0) (select ULTIMATE.start_main_~str2~6 36)) (<= ULTIMATE.start_main_~MAX~6 37) (<= 37 ULTIMATE.start_main_~MAX~6)) [2019-01-31 15:08:46,414 INFO L273 TraceCheckUtils]: 0: Hoare triple {33871#true} havoc main_#res;havoc main_#t~nondet0, main_#t~nondet2, main_#t~post1, main_#t~post4, main_#t~post3, main_#t~post6, main_#t~post5, main_~MAX~6, main_~str1~6, main_~str2~6, main_~cont~6, main_~i~6, main_~j~6;main_~MAX~6 := (if main_#t~nondet0 % 4294967296 % 4294967296 <= 2147483647 then main_#t~nondet0 % 4294967296 % 4294967296 else main_#t~nondet0 % 4294967296 % 4294967296 - 4294967296);havoc main_#t~nondet0;havoc main_~str1~6;havoc main_~str2~6;havoc main_~cont~6;havoc main_~i~6;havoc main_~j~6;main_~cont~6 := 0;main_~i~6 := 0; {33873#(and (<= ULTIMATE.start_main_~i~6 0) (<= 0 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:08:46,414 INFO L273 TraceCheckUtils]: 1: Hoare triple {33873#(and (<= ULTIMATE.start_main_~i~6 0) (<= 0 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {33874#(and (<= ULTIMATE.start_main_~i~6 1) (<= 1 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:08:46,415 INFO L273 TraceCheckUtils]: 2: Hoare triple {33874#(and (<= ULTIMATE.start_main_~i~6 1) (<= 1 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {33875#(and (<= ULTIMATE.start_main_~i~6 2) (<= 2 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:08:46,416 INFO L273 TraceCheckUtils]: 3: Hoare triple {33875#(and (<= ULTIMATE.start_main_~i~6 2) (<= 2 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {33876#(and (<= 3 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 3))} is VALID [2019-01-31 15:08:46,416 INFO L273 TraceCheckUtils]: 4: Hoare triple {33876#(and (<= 3 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 3))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {33877#(and (<= ULTIMATE.start_main_~i~6 4) (<= 4 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:08:46,417 INFO L273 TraceCheckUtils]: 5: Hoare triple {33877#(and (<= ULTIMATE.start_main_~i~6 4) (<= 4 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {33878#(and (<= 5 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 5))} is VALID [2019-01-31 15:08:46,418 INFO L273 TraceCheckUtils]: 6: Hoare triple {33878#(and (<= 5 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 5))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {33879#(and (<= ULTIMATE.start_main_~i~6 6) (<= 6 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:08:46,419 INFO L273 TraceCheckUtils]: 7: Hoare triple {33879#(and (<= ULTIMATE.start_main_~i~6 6) (<= 6 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {33880#(and (<= 7 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 7))} is VALID [2019-01-31 15:08:46,420 INFO L273 TraceCheckUtils]: 8: Hoare triple {33880#(and (<= 7 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 7))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {33881#(and (<= ULTIMATE.start_main_~i~6 8) (<= 8 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:08:46,421 INFO L273 TraceCheckUtils]: 9: Hoare triple {33881#(and (<= ULTIMATE.start_main_~i~6 8) (<= 8 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {33882#(and (<= ULTIMATE.start_main_~i~6 9) (<= 9 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:08:46,422 INFO L273 TraceCheckUtils]: 10: Hoare triple {33882#(and (<= ULTIMATE.start_main_~i~6 9) (<= 9 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {33883#(and (<= ULTIMATE.start_main_~i~6 10) (<= 10 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:08:46,423 INFO L273 TraceCheckUtils]: 11: Hoare triple {33883#(and (<= ULTIMATE.start_main_~i~6 10) (<= 10 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {33884#(and (<= 11 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 11))} is VALID [2019-01-31 15:08:46,424 INFO L273 TraceCheckUtils]: 12: Hoare triple {33884#(and (<= 11 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 11))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {33885#(and (<= ULTIMATE.start_main_~i~6 12) (<= 12 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:08:46,425 INFO L273 TraceCheckUtils]: 13: Hoare triple {33885#(and (<= ULTIMATE.start_main_~i~6 12) (<= 12 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {33886#(and (<= ULTIMATE.start_main_~i~6 13) (<= 13 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:08:46,426 INFO L273 TraceCheckUtils]: 14: Hoare triple {33886#(and (<= ULTIMATE.start_main_~i~6 13) (<= 13 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {33887#(and (<= ULTIMATE.start_main_~i~6 14) (<= 14 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:08:46,427 INFO L273 TraceCheckUtils]: 15: Hoare triple {33887#(and (<= ULTIMATE.start_main_~i~6 14) (<= 14 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {33888#(and (<= 15 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 15))} is VALID [2019-01-31 15:08:46,428 INFO L273 TraceCheckUtils]: 16: Hoare triple {33888#(and (<= 15 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 15))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {33889#(and (<= 16 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 16))} is VALID [2019-01-31 15:08:46,429 INFO L273 TraceCheckUtils]: 17: Hoare triple {33889#(and (<= 16 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 16))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {33890#(and (<= ULTIMATE.start_main_~i~6 17) (<= 17 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:08:46,430 INFO L273 TraceCheckUtils]: 18: Hoare triple {33890#(and (<= ULTIMATE.start_main_~i~6 17) (<= 17 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {33891#(and (<= ULTIMATE.start_main_~i~6 18) (<= 18 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:08:46,431 INFO L273 TraceCheckUtils]: 19: Hoare triple {33891#(and (<= ULTIMATE.start_main_~i~6 18) (<= 18 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {33892#(and (<= ULTIMATE.start_main_~i~6 19) (<= 19 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:08:46,432 INFO L273 TraceCheckUtils]: 20: Hoare triple {33892#(and (<= ULTIMATE.start_main_~i~6 19) (<= 19 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {33893#(and (<= ULTIMATE.start_main_~i~6 20) (<= 20 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:08:46,433 INFO L273 TraceCheckUtils]: 21: Hoare triple {33893#(and (<= ULTIMATE.start_main_~i~6 20) (<= 20 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {33894#(and (<= ULTIMATE.start_main_~i~6 21) (<= 21 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:08:46,434 INFO L273 TraceCheckUtils]: 22: Hoare triple {33894#(and (<= ULTIMATE.start_main_~i~6 21) (<= 21 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {33895#(and (<= 22 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 22))} is VALID [2019-01-31 15:08:46,435 INFO L273 TraceCheckUtils]: 23: Hoare triple {33895#(and (<= 22 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 22))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {33896#(and (<= 23 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 23))} is VALID [2019-01-31 15:08:46,436 INFO L273 TraceCheckUtils]: 24: Hoare triple {33896#(and (<= 23 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 23))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {33897#(and (<= ULTIMATE.start_main_~i~6 24) (<= 24 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:08:46,437 INFO L273 TraceCheckUtils]: 25: Hoare triple {33897#(and (<= ULTIMATE.start_main_~i~6 24) (<= 24 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {33898#(and (<= ULTIMATE.start_main_~i~6 25) (<= 25 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:08:46,438 INFO L273 TraceCheckUtils]: 26: Hoare triple {33898#(and (<= ULTIMATE.start_main_~i~6 25) (<= 25 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {33899#(and (<= 26 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 26))} is VALID [2019-01-31 15:08:46,439 INFO L273 TraceCheckUtils]: 27: Hoare triple {33899#(and (<= 26 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 26))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {33900#(and (<= ULTIMATE.start_main_~i~6 27) (<= 27 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:08:46,440 INFO L273 TraceCheckUtils]: 28: Hoare triple {33900#(and (<= ULTIMATE.start_main_~i~6 27) (<= 27 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {33901#(and (<= ULTIMATE.start_main_~i~6 28) (<= 28 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:08:46,441 INFO L273 TraceCheckUtils]: 29: Hoare triple {33901#(and (<= ULTIMATE.start_main_~i~6 28) (<= 28 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {33902#(and (<= 29 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 29))} is VALID [2019-01-31 15:08:46,442 INFO L273 TraceCheckUtils]: 30: Hoare triple {33902#(and (<= 29 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 29))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {33903#(and (<= 30 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 30))} is VALID [2019-01-31 15:08:46,443 INFO L273 TraceCheckUtils]: 31: Hoare triple {33903#(and (<= 30 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 30))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {33904#(and (<= ULTIMATE.start_main_~i~6 31) (<= 31 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:08:46,444 INFO L273 TraceCheckUtils]: 32: Hoare triple {33904#(and (<= ULTIMATE.start_main_~i~6 31) (<= 31 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {33905#(and (<= 32 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 32))} is VALID [2019-01-31 15:08:46,445 INFO L273 TraceCheckUtils]: 33: Hoare triple {33905#(and (<= 32 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 32))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {33906#(and (<= 33 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 33))} is VALID [2019-01-31 15:08:46,446 INFO L273 TraceCheckUtils]: 34: Hoare triple {33906#(and (<= 33 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 33))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {33907#(and (<= ULTIMATE.start_main_~i~6 34) (<= 34 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:08:46,447 INFO L273 TraceCheckUtils]: 35: Hoare triple {33907#(and (<= ULTIMATE.start_main_~i~6 34) (<= 34 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {33908#(and (<= ULTIMATE.start_main_~i~6 35) (<= 35 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:08:46,448 INFO L273 TraceCheckUtils]: 36: Hoare triple {33908#(and (<= ULTIMATE.start_main_~i~6 35) (<= 35 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {34060#(and (<= 36 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 36))} is VALID [2019-01-31 15:08:46,449 INFO L273 TraceCheckUtils]: 37: Hoare triple {34060#(and (<= 36 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 36))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {34064#(and (<= 37 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~i~6 37))} is VALID [2019-01-31 15:08:46,450 INFO L273 TraceCheckUtils]: 38: Hoare triple {34064#(and (<= 37 ULTIMATE.start_main_~MAX~6) (<= ULTIMATE.start_main_~i~6 37))} assume !(main_~i~6 < main_~MAX~6);main_~str1~6 := main_~str1~6[main_~MAX~6 - 1 := 0];main_~j~6 := 0;main_~i~6 := main_~MAX~6 - 1; {34068#(and (<= ULTIMATE.start_main_~MAX~6 37) (= ULTIMATE.start_main_~j~6 0) (<= 37 ULTIMATE.start_main_~MAX~6))} is VALID [2019-01-31 15:08:46,451 INFO L273 TraceCheckUtils]: 39: Hoare triple {34068#(and (<= ULTIMATE.start_main_~MAX~6 37) (= ULTIMATE.start_main_~j~6 0) (<= 37 ULTIMATE.start_main_~MAX~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {34072#(and (<= ULTIMATE.start_main_~MAX~6 37) (= ULTIMATE.start_main_~j~6 1) (<= 37 ULTIMATE.start_main_~MAX~6))} is VALID [2019-01-31 15:08:46,452 INFO L273 TraceCheckUtils]: 40: Hoare triple {34072#(and (<= ULTIMATE.start_main_~MAX~6 37) (= ULTIMATE.start_main_~j~6 1) (<= 37 ULTIMATE.start_main_~MAX~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {34076#(and (<= ULTIMATE.start_main_~MAX~6 37) (<= 37 ULTIMATE.start_main_~MAX~6) (= ULTIMATE.start_main_~j~6 2))} is VALID [2019-01-31 15:08:46,453 INFO L273 TraceCheckUtils]: 41: Hoare triple {34076#(and (<= ULTIMATE.start_main_~MAX~6 37) (<= 37 ULTIMATE.start_main_~MAX~6) (= ULTIMATE.start_main_~j~6 2))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {34080#(and (<= ULTIMATE.start_main_~MAX~6 37) (= ULTIMATE.start_main_~j~6 3) (<= 37 ULTIMATE.start_main_~MAX~6))} is VALID [2019-01-31 15:08:46,454 INFO L273 TraceCheckUtils]: 42: Hoare triple {34080#(and (<= ULTIMATE.start_main_~MAX~6 37) (= ULTIMATE.start_main_~j~6 3) (<= 37 ULTIMATE.start_main_~MAX~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {34084#(and (<= ULTIMATE.start_main_~MAX~6 37) (= ULTIMATE.start_main_~j~6 4) (<= 37 ULTIMATE.start_main_~MAX~6))} is VALID [2019-01-31 15:08:46,455 INFO L273 TraceCheckUtils]: 43: Hoare triple {34084#(and (<= ULTIMATE.start_main_~MAX~6 37) (= ULTIMATE.start_main_~j~6 4) (<= 37 ULTIMATE.start_main_~MAX~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {34088#(and (= ULTIMATE.start_main_~j~6 5) (<= ULTIMATE.start_main_~MAX~6 37) (<= 37 ULTIMATE.start_main_~MAX~6))} is VALID [2019-01-31 15:08:46,456 INFO L273 TraceCheckUtils]: 44: Hoare triple {34088#(and (= ULTIMATE.start_main_~j~6 5) (<= ULTIMATE.start_main_~MAX~6 37) (<= 37 ULTIMATE.start_main_~MAX~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {34092#(and (<= ULTIMATE.start_main_~MAX~6 37) (<= 37 ULTIMATE.start_main_~MAX~6) (= ULTIMATE.start_main_~j~6 6))} is VALID [2019-01-31 15:08:46,457 INFO L273 TraceCheckUtils]: 45: Hoare triple {34092#(and (<= ULTIMATE.start_main_~MAX~6 37) (<= 37 ULTIMATE.start_main_~MAX~6) (= ULTIMATE.start_main_~j~6 6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {34096#(and (= ULTIMATE.start_main_~j~6 7) (<= ULTIMATE.start_main_~MAX~6 37) (<= 37 ULTIMATE.start_main_~MAX~6))} is VALID [2019-01-31 15:08:46,458 INFO L273 TraceCheckUtils]: 46: Hoare triple {34096#(and (= ULTIMATE.start_main_~j~6 7) (<= ULTIMATE.start_main_~MAX~6 37) (<= 37 ULTIMATE.start_main_~MAX~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {34100#(and (<= ULTIMATE.start_main_~MAX~6 37) (= ULTIMATE.start_main_~j~6 8) (<= 37 ULTIMATE.start_main_~MAX~6))} is VALID [2019-01-31 15:08:46,458 INFO L273 TraceCheckUtils]: 47: Hoare triple {34100#(and (<= ULTIMATE.start_main_~MAX~6 37) (= ULTIMATE.start_main_~j~6 8) (<= 37 ULTIMATE.start_main_~MAX~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {34104#(and (= ULTIMATE.start_main_~j~6 9) (<= ULTIMATE.start_main_~MAX~6 37) (<= 37 ULTIMATE.start_main_~MAX~6))} is VALID [2019-01-31 15:08:46,459 INFO L273 TraceCheckUtils]: 48: Hoare triple {34104#(and (= ULTIMATE.start_main_~j~6 9) (<= ULTIMATE.start_main_~MAX~6 37) (<= 37 ULTIMATE.start_main_~MAX~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {34108#(and (= ULTIMATE.start_main_~j~6 10) (<= ULTIMATE.start_main_~MAX~6 37) (<= 37 ULTIMATE.start_main_~MAX~6))} is VALID [2019-01-31 15:08:46,460 INFO L273 TraceCheckUtils]: 49: Hoare triple {34108#(and (= ULTIMATE.start_main_~j~6 10) (<= ULTIMATE.start_main_~MAX~6 37) (<= 37 ULTIMATE.start_main_~MAX~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {34112#(and (<= ULTIMATE.start_main_~MAX~6 37) (= ULTIMATE.start_main_~j~6 11) (<= 37 ULTIMATE.start_main_~MAX~6))} is VALID [2019-01-31 15:08:46,461 INFO L273 TraceCheckUtils]: 50: Hoare triple {34112#(and (<= ULTIMATE.start_main_~MAX~6 37) (= ULTIMATE.start_main_~j~6 11) (<= 37 ULTIMATE.start_main_~MAX~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {34116#(and (= ULTIMATE.start_main_~j~6 12) (<= ULTIMATE.start_main_~MAX~6 37) (<= 37 ULTIMATE.start_main_~MAX~6))} is VALID [2019-01-31 15:08:46,462 INFO L273 TraceCheckUtils]: 51: Hoare triple {34116#(and (= ULTIMATE.start_main_~j~6 12) (<= ULTIMATE.start_main_~MAX~6 37) (<= 37 ULTIMATE.start_main_~MAX~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {34120#(and (<= ULTIMATE.start_main_~MAX~6 37) (= ULTIMATE.start_main_~j~6 13) (<= 37 ULTIMATE.start_main_~MAX~6))} is VALID [2019-01-31 15:08:46,463 INFO L273 TraceCheckUtils]: 52: Hoare triple {34120#(and (<= ULTIMATE.start_main_~MAX~6 37) (= ULTIMATE.start_main_~j~6 13) (<= 37 ULTIMATE.start_main_~MAX~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {34124#(and (<= ULTIMATE.start_main_~MAX~6 37) (= ULTIMATE.start_main_~j~6 14) (<= 37 ULTIMATE.start_main_~MAX~6))} is VALID [2019-01-31 15:08:46,464 INFO L273 TraceCheckUtils]: 53: Hoare triple {34124#(and (<= ULTIMATE.start_main_~MAX~6 37) (= ULTIMATE.start_main_~j~6 14) (<= 37 ULTIMATE.start_main_~MAX~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {34128#(and (<= ULTIMATE.start_main_~MAX~6 37) (<= 37 ULTIMATE.start_main_~MAX~6) (= ULTIMATE.start_main_~j~6 15))} is VALID [2019-01-31 15:08:46,465 INFO L273 TraceCheckUtils]: 54: Hoare triple {34128#(and (<= ULTIMATE.start_main_~MAX~6 37) (<= 37 ULTIMATE.start_main_~MAX~6) (= ULTIMATE.start_main_~j~6 15))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {34132#(and (<= ULTIMATE.start_main_~MAX~6 37) (= ULTIMATE.start_main_~j~6 16) (<= 37 ULTIMATE.start_main_~MAX~6))} is VALID [2019-01-31 15:08:46,466 INFO L273 TraceCheckUtils]: 55: Hoare triple {34132#(and (<= ULTIMATE.start_main_~MAX~6 37) (= ULTIMATE.start_main_~j~6 16) (<= 37 ULTIMATE.start_main_~MAX~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {34136#(and (<= ULTIMATE.start_main_~MAX~6 37) (= ULTIMATE.start_main_~j~6 17) (<= 37 ULTIMATE.start_main_~MAX~6))} is VALID [2019-01-31 15:08:46,466 INFO L273 TraceCheckUtils]: 56: Hoare triple {34136#(and (<= ULTIMATE.start_main_~MAX~6 37) (= ULTIMATE.start_main_~j~6 17) (<= 37 ULTIMATE.start_main_~MAX~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {34140#(and (= ULTIMATE.start_main_~j~6 18) (<= ULTIMATE.start_main_~MAX~6 37) (<= 37 ULTIMATE.start_main_~MAX~6))} is VALID [2019-01-31 15:08:46,467 INFO L273 TraceCheckUtils]: 57: Hoare triple {34140#(and (= ULTIMATE.start_main_~j~6 18) (<= ULTIMATE.start_main_~MAX~6 37) (<= 37 ULTIMATE.start_main_~MAX~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {34144#(and (= ULTIMATE.start_main_~j~6 19) (<= ULTIMATE.start_main_~MAX~6 37) (<= 37 ULTIMATE.start_main_~MAX~6))} is VALID [2019-01-31 15:08:46,468 INFO L273 TraceCheckUtils]: 58: Hoare triple {34144#(and (= ULTIMATE.start_main_~j~6 19) (<= ULTIMATE.start_main_~MAX~6 37) (<= 37 ULTIMATE.start_main_~MAX~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {34148#(and (<= ULTIMATE.start_main_~MAX~6 37) (= ULTIMATE.start_main_~j~6 20) (<= 37 ULTIMATE.start_main_~MAX~6))} is VALID [2019-01-31 15:08:46,469 INFO L273 TraceCheckUtils]: 59: Hoare triple {34148#(and (<= ULTIMATE.start_main_~MAX~6 37) (= ULTIMATE.start_main_~j~6 20) (<= 37 ULTIMATE.start_main_~MAX~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {34152#(and (= ULTIMATE.start_main_~j~6 21) (<= ULTIMATE.start_main_~MAX~6 37) (<= 37 ULTIMATE.start_main_~MAX~6))} is VALID [2019-01-31 15:08:46,470 INFO L273 TraceCheckUtils]: 60: Hoare triple {34152#(and (= ULTIMATE.start_main_~j~6 21) (<= ULTIMATE.start_main_~MAX~6 37) (<= 37 ULTIMATE.start_main_~MAX~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {34156#(and (<= ULTIMATE.start_main_~MAX~6 37) (<= 37 ULTIMATE.start_main_~MAX~6) (= ULTIMATE.start_main_~j~6 22))} is VALID [2019-01-31 15:08:46,471 INFO L273 TraceCheckUtils]: 61: Hoare triple {34156#(and (<= ULTIMATE.start_main_~MAX~6 37) (<= 37 ULTIMATE.start_main_~MAX~6) (= ULTIMATE.start_main_~j~6 22))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {34160#(and (<= ULTIMATE.start_main_~MAX~6 37) (= ULTIMATE.start_main_~j~6 23) (<= 37 ULTIMATE.start_main_~MAX~6))} is VALID [2019-01-31 15:08:46,471 INFO L273 TraceCheckUtils]: 62: Hoare triple {34160#(and (<= ULTIMATE.start_main_~MAX~6 37) (= ULTIMATE.start_main_~j~6 23) (<= 37 ULTIMATE.start_main_~MAX~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {34164#(and (<= ULTIMATE.start_main_~MAX~6 37) (= ULTIMATE.start_main_~j~6 24) (<= 37 ULTIMATE.start_main_~MAX~6))} is VALID [2019-01-31 15:08:46,472 INFO L273 TraceCheckUtils]: 63: Hoare triple {34164#(and (<= ULTIMATE.start_main_~MAX~6 37) (= ULTIMATE.start_main_~j~6 24) (<= 37 ULTIMATE.start_main_~MAX~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {34168#(and (= ULTIMATE.start_main_~j~6 25) (<= ULTIMATE.start_main_~MAX~6 37) (<= 37 ULTIMATE.start_main_~MAX~6))} is VALID [2019-01-31 15:08:46,473 INFO L273 TraceCheckUtils]: 64: Hoare triple {34168#(and (= ULTIMATE.start_main_~j~6 25) (<= ULTIMATE.start_main_~MAX~6 37) (<= 37 ULTIMATE.start_main_~MAX~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {34172#(and (= ULTIMATE.start_main_~j~6 26) (<= ULTIMATE.start_main_~MAX~6 37) (<= 37 ULTIMATE.start_main_~MAX~6))} is VALID [2019-01-31 15:08:46,474 INFO L273 TraceCheckUtils]: 65: Hoare triple {34172#(and (= ULTIMATE.start_main_~j~6 26) (<= ULTIMATE.start_main_~MAX~6 37) (<= 37 ULTIMATE.start_main_~MAX~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {34176#(and (= ULTIMATE.start_main_~j~6 27) (<= ULTIMATE.start_main_~MAX~6 37) (<= 37 ULTIMATE.start_main_~MAX~6))} is VALID [2019-01-31 15:08:46,475 INFO L273 TraceCheckUtils]: 66: Hoare triple {34176#(and (= ULTIMATE.start_main_~j~6 27) (<= ULTIMATE.start_main_~MAX~6 37) (<= 37 ULTIMATE.start_main_~MAX~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {34180#(and (<= ULTIMATE.start_main_~MAX~6 37) (= ULTIMATE.start_main_~j~6 28) (<= 37 ULTIMATE.start_main_~MAX~6))} is VALID [2019-01-31 15:08:46,476 INFO L273 TraceCheckUtils]: 67: Hoare triple {34180#(and (<= ULTIMATE.start_main_~MAX~6 37) (= ULTIMATE.start_main_~j~6 28) (<= 37 ULTIMATE.start_main_~MAX~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {34184#(and (<= ULTIMATE.start_main_~MAX~6 37) (<= 37 ULTIMATE.start_main_~MAX~6) (= ULTIMATE.start_main_~j~6 29))} is VALID [2019-01-31 15:08:46,477 INFO L273 TraceCheckUtils]: 68: Hoare triple {34184#(and (<= ULTIMATE.start_main_~MAX~6 37) (<= 37 ULTIMATE.start_main_~MAX~6) (= ULTIMATE.start_main_~j~6 29))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {34188#(and (<= ULTIMATE.start_main_~MAX~6 37) (= ULTIMATE.start_main_~j~6 30) (<= 37 ULTIMATE.start_main_~MAX~6))} is VALID [2019-01-31 15:08:46,477 INFO L273 TraceCheckUtils]: 69: Hoare triple {34188#(and (<= ULTIMATE.start_main_~MAX~6 37) (= ULTIMATE.start_main_~j~6 30) (<= 37 ULTIMATE.start_main_~MAX~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {34192#(and (= ULTIMATE.start_main_~j~6 31) (<= ULTIMATE.start_main_~MAX~6 37) (<= 37 ULTIMATE.start_main_~MAX~6))} is VALID [2019-01-31 15:08:46,478 INFO L273 TraceCheckUtils]: 70: Hoare triple {34192#(and (= ULTIMATE.start_main_~j~6 31) (<= ULTIMATE.start_main_~MAX~6 37) (<= 37 ULTIMATE.start_main_~MAX~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {34196#(and (<= ULTIMATE.start_main_~MAX~6 37) (= ULTIMATE.start_main_~j~6 32) (<= 37 ULTIMATE.start_main_~MAX~6))} is VALID [2019-01-31 15:08:46,479 INFO L273 TraceCheckUtils]: 71: Hoare triple {34196#(and (<= ULTIMATE.start_main_~MAX~6 37) (= ULTIMATE.start_main_~j~6 32) (<= 37 ULTIMATE.start_main_~MAX~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {34200#(and (<= ULTIMATE.start_main_~MAX~6 37) (= ULTIMATE.start_main_~j~6 33) (<= 37 ULTIMATE.start_main_~MAX~6))} is VALID [2019-01-31 15:08:46,480 INFO L273 TraceCheckUtils]: 72: Hoare triple {34200#(and (<= ULTIMATE.start_main_~MAX~6 37) (= ULTIMATE.start_main_~j~6 33) (<= 37 ULTIMATE.start_main_~MAX~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {34204#(and (<= ULTIMATE.start_main_~MAX~6 37) (= ULTIMATE.start_main_~j~6 34) (<= 37 ULTIMATE.start_main_~MAX~6))} is VALID [2019-01-31 15:08:46,481 INFO L273 TraceCheckUtils]: 73: Hoare triple {34204#(and (<= ULTIMATE.start_main_~MAX~6 37) (= ULTIMATE.start_main_~j~6 34) (<= 37 ULTIMATE.start_main_~MAX~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {34208#(and (<= ULTIMATE.start_main_~MAX~6 37) (= ULTIMATE.start_main_~j~6 35) (<= 37 ULTIMATE.start_main_~MAX~6))} is VALID [2019-01-31 15:08:46,482 INFO L273 TraceCheckUtils]: 74: Hoare triple {34208#(and (<= ULTIMATE.start_main_~MAX~6 37) (= ULTIMATE.start_main_~j~6 35) (<= 37 ULTIMATE.start_main_~MAX~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {34212#(and (= ULTIMATE.start_main_~j~6 36) (<= ULTIMATE.start_main_~MAX~6 37) (<= 37 ULTIMATE.start_main_~MAX~6))} is VALID [2019-01-31 15:08:46,483 INFO L273 TraceCheckUtils]: 75: Hoare triple {34212#(and (= ULTIMATE.start_main_~j~6 36) (<= ULTIMATE.start_main_~MAX~6 37) (<= 37 ULTIMATE.start_main_~MAX~6))} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {34216#(and (= (select ULTIMATE.start_main_~str1~6 0) (select ULTIMATE.start_main_~str2~6 36)) (<= ULTIMATE.start_main_~MAX~6 37) (<= 37 ULTIMATE.start_main_~MAX~6))} is VALID [2019-01-31 15:08:46,484 INFO L273 TraceCheckUtils]: 76: Hoare triple {34216#(and (= (select ULTIMATE.start_main_~str1~6 0) (select ULTIMATE.start_main_~str2~6 36)) (<= ULTIMATE.start_main_~MAX~6 37) (<= 37 ULTIMATE.start_main_~MAX~6))} assume !(main_~i~6 >= 0);main_~j~6 := main_~MAX~6 - 1;main_~i~6 := 0;assume !!(main_~i~6 < main_~MAX~6);__VERIFIER_assert_#in~cond := (if main_~str1~6[main_~i~6] == main_~str2~6[main_~j~6] then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond;assume __VERIFIER_assert_~cond == 0;assume !false; {33872#false} is VALID [2019-01-31 15:08:46,484 INFO L273 TraceCheckUtils]: 77: Hoare triple {33872#false} assume !false; {33872#false} is VALID [2019-01-31 15:08:46,496 INFO L134 CoverageAnalysis]: Checked inductivity of 1406 backedges. 0 proven. 1406 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-31 15:08:46,496 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2019-01-31 15:08:46,555 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 5 [2019-01-31 15:08:46,557 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-01-31 15:08:46,562 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-31 15:08:46,562 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:14, output treesize:5 [2019-01-31 15:08:46,564 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-01-31 15:08:46,565 WARN L398 uantifierElimination]: Input elimination task: ∀ [ULTIMATE.start_main_~str2~6, ULTIMATE.start_main_~str1~6]. (let ((.cse0 (select ULTIMATE.start_main_~str1~6 0))) (= .cse0 (select (store ULTIMATE.start_main_~str2~6 ULTIMATE.start_main_~j~6 .cse0) (+ ULTIMATE.start_main_~MAX~6 (- 1))))) [2019-01-31 15:08:46,565 WARN L399 uantifierElimination]: ElimStorePlain result: ∀ []. (= (+ ULTIMATE.start_main_~j~6 1) ULTIMATE.start_main_~MAX~6) [2019-01-31 15:08:48,066 INFO L273 TraceCheckUtils]: 77: Hoare triple {33872#false} assume !false; {33872#false} is VALID [2019-01-31 15:08:48,067 INFO L273 TraceCheckUtils]: 76: Hoare triple {33948#(= (select ULTIMATE.start_main_~str1~6 0) (select ULTIMATE.start_main_~str2~6 (+ ULTIMATE.start_main_~MAX~6 (- 1))))} assume !(main_~i~6 >= 0);main_~j~6 := main_~MAX~6 - 1;main_~i~6 := 0;assume !!(main_~i~6 < main_~MAX~6);__VERIFIER_assert_#in~cond := (if main_~str1~6[main_~i~6] == main_~str2~6[main_~j~6] then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond;assume __VERIFIER_assert_~cond == 0;assume !false; {33872#false} is VALID [2019-01-31 15:08:48,068 INFO L273 TraceCheckUtils]: 75: Hoare triple {33947#(= (+ ULTIMATE.start_main_~j~6 1) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {33948#(= (select ULTIMATE.start_main_~str1~6 0) (select ULTIMATE.start_main_~str2~6 (+ ULTIMATE.start_main_~MAX~6 (- 1))))} is VALID [2019-01-31 15:08:48,069 INFO L273 TraceCheckUtils]: 74: Hoare triple {33946#(= (+ ULTIMATE.start_main_~j~6 2) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {33947#(= (+ ULTIMATE.start_main_~j~6 1) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:08:48,070 INFO L273 TraceCheckUtils]: 73: Hoare triple {33945#(= (+ ULTIMATE.start_main_~j~6 3) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {33946#(= (+ ULTIMATE.start_main_~j~6 2) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:08:48,071 INFO L273 TraceCheckUtils]: 72: Hoare triple {33944#(= (+ ULTIMATE.start_main_~j~6 4) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {33945#(= (+ ULTIMATE.start_main_~j~6 3) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:08:48,072 INFO L273 TraceCheckUtils]: 71: Hoare triple {33943#(= (+ ULTIMATE.start_main_~j~6 5) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {33944#(= (+ ULTIMATE.start_main_~j~6 4) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:08:48,073 INFO L273 TraceCheckUtils]: 70: Hoare triple {33942#(= (+ ULTIMATE.start_main_~j~6 6) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {33943#(= (+ ULTIMATE.start_main_~j~6 5) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:08:48,074 INFO L273 TraceCheckUtils]: 69: Hoare triple {33941#(= (+ ULTIMATE.start_main_~j~6 7) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {33942#(= (+ ULTIMATE.start_main_~j~6 6) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:08:48,075 INFO L273 TraceCheckUtils]: 68: Hoare triple {33940#(= (+ ULTIMATE.start_main_~j~6 8) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {33941#(= (+ ULTIMATE.start_main_~j~6 7) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:08:48,076 INFO L273 TraceCheckUtils]: 67: Hoare triple {33939#(= (+ ULTIMATE.start_main_~j~6 9) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {33940#(= (+ ULTIMATE.start_main_~j~6 8) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:08:48,077 INFO L273 TraceCheckUtils]: 66: Hoare triple {33938#(= (+ ULTIMATE.start_main_~j~6 10) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {33939#(= (+ ULTIMATE.start_main_~j~6 9) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:08:48,078 INFO L273 TraceCheckUtils]: 65: Hoare triple {33937#(= (+ ULTIMATE.start_main_~j~6 11) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {33938#(= (+ ULTIMATE.start_main_~j~6 10) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:08:48,079 INFO L273 TraceCheckUtils]: 64: Hoare triple {33936#(= (+ ULTIMATE.start_main_~j~6 12) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {33937#(= (+ ULTIMATE.start_main_~j~6 11) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:08:48,080 INFO L273 TraceCheckUtils]: 63: Hoare triple {33935#(= (+ ULTIMATE.start_main_~j~6 13) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {33936#(= (+ ULTIMATE.start_main_~j~6 12) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:08:48,081 INFO L273 TraceCheckUtils]: 62: Hoare triple {33934#(= (+ ULTIMATE.start_main_~j~6 14) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {33935#(= (+ ULTIMATE.start_main_~j~6 13) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:08:48,082 INFO L273 TraceCheckUtils]: 61: Hoare triple {33933#(= (+ ULTIMATE.start_main_~j~6 15) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {33934#(= (+ ULTIMATE.start_main_~j~6 14) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:08:48,083 INFO L273 TraceCheckUtils]: 60: Hoare triple {33932#(= (+ ULTIMATE.start_main_~j~6 16) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {33933#(= (+ ULTIMATE.start_main_~j~6 15) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:08:48,084 INFO L273 TraceCheckUtils]: 59: Hoare triple {33931#(= (+ ULTIMATE.start_main_~j~6 17) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {33932#(= (+ ULTIMATE.start_main_~j~6 16) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:08:48,085 INFO L273 TraceCheckUtils]: 58: Hoare triple {33930#(= (+ ULTIMATE.start_main_~j~6 18) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {33931#(= (+ ULTIMATE.start_main_~j~6 17) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:08:48,086 INFO L273 TraceCheckUtils]: 57: Hoare triple {33929#(= (+ ULTIMATE.start_main_~j~6 19) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {33930#(= (+ ULTIMATE.start_main_~j~6 18) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:08:48,087 INFO L273 TraceCheckUtils]: 56: Hoare triple {33928#(= (+ ULTIMATE.start_main_~j~6 20) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {33929#(= (+ ULTIMATE.start_main_~j~6 19) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:08:48,088 INFO L273 TraceCheckUtils]: 55: Hoare triple {33927#(= (+ ULTIMATE.start_main_~j~6 21) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {33928#(= (+ ULTIMATE.start_main_~j~6 20) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:08:48,089 INFO L273 TraceCheckUtils]: 54: Hoare triple {33926#(= (+ ULTIMATE.start_main_~j~6 22) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {33927#(= (+ ULTIMATE.start_main_~j~6 21) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:08:48,090 INFO L273 TraceCheckUtils]: 53: Hoare triple {33925#(= (+ ULTIMATE.start_main_~j~6 23) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {33926#(= (+ ULTIMATE.start_main_~j~6 22) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:08:48,091 INFO L273 TraceCheckUtils]: 52: Hoare triple {33924#(= (+ ULTIMATE.start_main_~j~6 24) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {33925#(= (+ ULTIMATE.start_main_~j~6 23) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:08:48,092 INFO L273 TraceCheckUtils]: 51: Hoare triple {33923#(= (+ ULTIMATE.start_main_~j~6 25) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {33924#(= (+ ULTIMATE.start_main_~j~6 24) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:08:48,093 INFO L273 TraceCheckUtils]: 50: Hoare triple {33922#(= (+ ULTIMATE.start_main_~j~6 26) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {33923#(= (+ ULTIMATE.start_main_~j~6 25) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:08:48,094 INFO L273 TraceCheckUtils]: 49: Hoare triple {33921#(= (+ ULTIMATE.start_main_~j~6 27) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {33922#(= (+ ULTIMATE.start_main_~j~6 26) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:08:48,095 INFO L273 TraceCheckUtils]: 48: Hoare triple {33920#(= (+ ULTIMATE.start_main_~j~6 28) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {33921#(= (+ ULTIMATE.start_main_~j~6 27) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:08:48,096 INFO L273 TraceCheckUtils]: 47: Hoare triple {33919#(= (+ ULTIMATE.start_main_~j~6 29) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {33920#(= (+ ULTIMATE.start_main_~j~6 28) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:08:48,097 INFO L273 TraceCheckUtils]: 46: Hoare triple {33918#(= (+ ULTIMATE.start_main_~j~6 30) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {33919#(= (+ ULTIMATE.start_main_~j~6 29) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:08:48,098 INFO L273 TraceCheckUtils]: 45: Hoare triple {33917#(= (+ ULTIMATE.start_main_~j~6 31) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {33918#(= (+ ULTIMATE.start_main_~j~6 30) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:08:48,099 INFO L273 TraceCheckUtils]: 44: Hoare triple {33916#(= (+ ULTIMATE.start_main_~j~6 32) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {33917#(= (+ ULTIMATE.start_main_~j~6 31) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:08:48,100 INFO L273 TraceCheckUtils]: 43: Hoare triple {33915#(= (+ ULTIMATE.start_main_~j~6 33) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {33916#(= (+ ULTIMATE.start_main_~j~6 32) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:08:48,101 INFO L273 TraceCheckUtils]: 42: Hoare triple {33914#(= (+ ULTIMATE.start_main_~j~6 34) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {33915#(= (+ ULTIMATE.start_main_~j~6 33) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:08:48,102 INFO L273 TraceCheckUtils]: 41: Hoare triple {33913#(= (+ ULTIMATE.start_main_~j~6 35) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {33914#(= (+ ULTIMATE.start_main_~j~6 34) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:08:48,103 INFO L273 TraceCheckUtils]: 40: Hoare triple {33912#(= (+ ULTIMATE.start_main_~j~6 36) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {33913#(= (+ ULTIMATE.start_main_~j~6 35) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:08:48,104 INFO L273 TraceCheckUtils]: 39: Hoare triple {33911#(= (+ ULTIMATE.start_main_~j~6 37) ULTIMATE.start_main_~MAX~6)} assume !!(main_~i~6 >= 0);main_~str2~6 := main_~str2~6[main_~j~6 := main_~str1~6[0]];main_#t~post4 := main_~j~6;main_~j~6 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 - 1;havoc main_#t~post3; {33912#(= (+ ULTIMATE.start_main_~j~6 36) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:08:48,105 INFO L273 TraceCheckUtils]: 38: Hoare triple {33910#(or (<= (+ ULTIMATE.start_main_~i~6 1) ULTIMATE.start_main_~MAX~6) (= 37 ULTIMATE.start_main_~MAX~6))} assume !(main_~i~6 < main_~MAX~6);main_~str1~6 := main_~str1~6[main_~MAX~6 - 1 := 0];main_~j~6 := 0;main_~i~6 := main_~MAX~6 - 1; {33911#(= (+ ULTIMATE.start_main_~j~6 37) ULTIMATE.start_main_~MAX~6)} is VALID [2019-01-31 15:08:48,106 INFO L273 TraceCheckUtils]: 37: Hoare triple {34060#(and (<= 36 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 36))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {33910#(or (<= (+ ULTIMATE.start_main_~i~6 1) ULTIMATE.start_main_~MAX~6) (= 37 ULTIMATE.start_main_~MAX~6))} is VALID [2019-01-31 15:08:48,107 INFO L273 TraceCheckUtils]: 36: Hoare triple {33908#(and (<= ULTIMATE.start_main_~i~6 35) (<= 35 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {34060#(and (<= 36 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 36))} is VALID [2019-01-31 15:08:48,108 INFO L273 TraceCheckUtils]: 35: Hoare triple {33907#(and (<= ULTIMATE.start_main_~i~6 34) (<= 34 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {33908#(and (<= ULTIMATE.start_main_~i~6 35) (<= 35 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:08:48,109 INFO L273 TraceCheckUtils]: 34: Hoare triple {33906#(and (<= 33 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 33))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {33907#(and (<= ULTIMATE.start_main_~i~6 34) (<= 34 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:08:48,110 INFO L273 TraceCheckUtils]: 33: Hoare triple {33905#(and (<= 32 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 32))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {33906#(and (<= 33 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 33))} is VALID [2019-01-31 15:08:48,111 INFO L273 TraceCheckUtils]: 32: Hoare triple {33904#(and (<= ULTIMATE.start_main_~i~6 31) (<= 31 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {33905#(and (<= 32 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 32))} is VALID [2019-01-31 15:08:48,112 INFO L273 TraceCheckUtils]: 31: Hoare triple {33903#(and (<= 30 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 30))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {33904#(and (<= ULTIMATE.start_main_~i~6 31) (<= 31 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:08:48,113 INFO L273 TraceCheckUtils]: 30: Hoare triple {33902#(and (<= 29 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 29))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {33903#(and (<= 30 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 30))} is VALID [2019-01-31 15:08:48,114 INFO L273 TraceCheckUtils]: 29: Hoare triple {33901#(and (<= ULTIMATE.start_main_~i~6 28) (<= 28 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {33902#(and (<= 29 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 29))} is VALID [2019-01-31 15:08:48,115 INFO L273 TraceCheckUtils]: 28: Hoare triple {33900#(and (<= ULTIMATE.start_main_~i~6 27) (<= 27 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {33901#(and (<= ULTIMATE.start_main_~i~6 28) (<= 28 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:08:48,116 INFO L273 TraceCheckUtils]: 27: Hoare triple {33899#(and (<= 26 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 26))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {33900#(and (<= ULTIMATE.start_main_~i~6 27) (<= 27 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:08:48,117 INFO L273 TraceCheckUtils]: 26: Hoare triple {33898#(and (<= ULTIMATE.start_main_~i~6 25) (<= 25 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {33899#(and (<= 26 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 26))} is VALID [2019-01-31 15:08:48,118 INFO L273 TraceCheckUtils]: 25: Hoare triple {33897#(and (<= ULTIMATE.start_main_~i~6 24) (<= 24 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {33898#(and (<= ULTIMATE.start_main_~i~6 25) (<= 25 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:08:48,119 INFO L273 TraceCheckUtils]: 24: Hoare triple {33896#(and (<= 23 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 23))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {33897#(and (<= ULTIMATE.start_main_~i~6 24) (<= 24 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:08:48,120 INFO L273 TraceCheckUtils]: 23: Hoare triple {33895#(and (<= 22 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 22))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {33896#(and (<= 23 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 23))} is VALID [2019-01-31 15:08:48,121 INFO L273 TraceCheckUtils]: 22: Hoare triple {33894#(and (<= ULTIMATE.start_main_~i~6 21) (<= 21 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {33895#(and (<= 22 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 22))} is VALID [2019-01-31 15:08:48,122 INFO L273 TraceCheckUtils]: 21: Hoare triple {33893#(and (<= ULTIMATE.start_main_~i~6 20) (<= 20 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {33894#(and (<= ULTIMATE.start_main_~i~6 21) (<= 21 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:08:48,123 INFO L273 TraceCheckUtils]: 20: Hoare triple {33892#(and (<= ULTIMATE.start_main_~i~6 19) (<= 19 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {33893#(and (<= ULTIMATE.start_main_~i~6 20) (<= 20 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:08:48,124 INFO L273 TraceCheckUtils]: 19: Hoare triple {33891#(and (<= ULTIMATE.start_main_~i~6 18) (<= 18 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {33892#(and (<= ULTIMATE.start_main_~i~6 19) (<= 19 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:08:48,125 INFO L273 TraceCheckUtils]: 18: Hoare triple {33890#(and (<= ULTIMATE.start_main_~i~6 17) (<= 17 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {33891#(and (<= ULTIMATE.start_main_~i~6 18) (<= 18 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:08:48,126 INFO L273 TraceCheckUtils]: 17: Hoare triple {33889#(and (<= 16 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 16))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {33890#(and (<= ULTIMATE.start_main_~i~6 17) (<= 17 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:08:48,127 INFO L273 TraceCheckUtils]: 16: Hoare triple {33888#(and (<= 15 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 15))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {33889#(and (<= 16 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 16))} is VALID [2019-01-31 15:08:48,128 INFO L273 TraceCheckUtils]: 15: Hoare triple {33887#(and (<= ULTIMATE.start_main_~i~6 14) (<= 14 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {33888#(and (<= 15 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 15))} is VALID [2019-01-31 15:08:48,129 INFO L273 TraceCheckUtils]: 14: Hoare triple {33886#(and (<= ULTIMATE.start_main_~i~6 13) (<= 13 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {33887#(and (<= ULTIMATE.start_main_~i~6 14) (<= 14 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:08:48,130 INFO L273 TraceCheckUtils]: 13: Hoare triple {33885#(and (<= ULTIMATE.start_main_~i~6 12) (<= 12 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {33886#(and (<= ULTIMATE.start_main_~i~6 13) (<= 13 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:08:48,131 INFO L273 TraceCheckUtils]: 12: Hoare triple {33884#(and (<= 11 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 11))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {33885#(and (<= ULTIMATE.start_main_~i~6 12) (<= 12 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:08:48,132 INFO L273 TraceCheckUtils]: 11: Hoare triple {33883#(and (<= ULTIMATE.start_main_~i~6 10) (<= 10 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {33884#(and (<= 11 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 11))} is VALID [2019-01-31 15:08:48,133 INFO L273 TraceCheckUtils]: 10: Hoare triple {33882#(and (<= ULTIMATE.start_main_~i~6 9) (<= 9 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {33883#(and (<= ULTIMATE.start_main_~i~6 10) (<= 10 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:08:48,134 INFO L273 TraceCheckUtils]: 9: Hoare triple {33881#(and (<= ULTIMATE.start_main_~i~6 8) (<= 8 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {33882#(and (<= ULTIMATE.start_main_~i~6 9) (<= 9 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:08:48,135 INFO L273 TraceCheckUtils]: 8: Hoare triple {33880#(and (<= 7 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 7))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {33881#(and (<= ULTIMATE.start_main_~i~6 8) (<= 8 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:08:48,136 INFO L273 TraceCheckUtils]: 7: Hoare triple {33879#(and (<= ULTIMATE.start_main_~i~6 6) (<= 6 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {33880#(and (<= 7 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 7))} is VALID [2019-01-31 15:08:48,137 INFO L273 TraceCheckUtils]: 6: Hoare triple {33878#(and (<= 5 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 5))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {33879#(and (<= ULTIMATE.start_main_~i~6 6) (<= 6 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:08:48,138 INFO L273 TraceCheckUtils]: 5: Hoare triple {33877#(and (<= ULTIMATE.start_main_~i~6 4) (<= 4 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {33878#(and (<= 5 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 5))} is VALID [2019-01-31 15:08:48,139 INFO L273 TraceCheckUtils]: 4: Hoare triple {33876#(and (<= 3 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 3))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {33877#(and (<= ULTIMATE.start_main_~i~6 4) (<= 4 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:08:48,140 INFO L273 TraceCheckUtils]: 3: Hoare triple {33875#(and (<= ULTIMATE.start_main_~i~6 2) (<= 2 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {33876#(and (<= 3 ULTIMATE.start_main_~i~6) (<= ULTIMATE.start_main_~i~6 3))} is VALID [2019-01-31 15:08:48,141 INFO L273 TraceCheckUtils]: 2: Hoare triple {33874#(and (<= ULTIMATE.start_main_~i~6 1) (<= 1 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {33875#(and (<= ULTIMATE.start_main_~i~6 2) (<= 2 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:08:48,142 INFO L273 TraceCheckUtils]: 1: Hoare triple {33873#(and (<= ULTIMATE.start_main_~i~6 0) (<= 0 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 < main_~MAX~6);assume -128 <= main_#t~nondet2 && main_#t~nondet2 <= 127;main_~str1~6 := main_~str1~6[main_~i~6 := main_#t~nondet2];havoc main_#t~nondet2;main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {33874#(and (<= ULTIMATE.start_main_~i~6 1) (<= 1 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:08:48,143 INFO L273 TraceCheckUtils]: 0: Hoare triple {33871#true} havoc main_#res;havoc main_#t~nondet0, main_#t~nondet2, main_#t~post1, main_#t~post4, main_#t~post3, main_#t~post6, main_#t~post5, main_~MAX~6, main_~str1~6, main_~str2~6, main_~cont~6, main_~i~6, main_~j~6;main_~MAX~6 := (if main_#t~nondet0 % 4294967296 % 4294967296 <= 2147483647 then main_#t~nondet0 % 4294967296 % 4294967296 else main_#t~nondet0 % 4294967296 % 4294967296 - 4294967296);havoc main_#t~nondet0;havoc main_~str1~6;havoc main_~str2~6;havoc main_~cont~6;havoc main_~i~6;havoc main_~j~6;main_~cont~6 := 0;main_~i~6 := 0; {33873#(and (<= ULTIMATE.start_main_~i~6 0) (<= 0 ULTIMATE.start_main_~i~6))} is VALID [2019-01-31 15:08:48,152 INFO L134 CoverageAnalysis]: Checked inductivity of 1406 backedges. 0 proven. 1406 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-31 15:08:48,171 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-01-31 15:08:48,172 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [77, 77, 77] total 117 [2019-01-31 15:08:48,172 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-01-31 15:08:48,172 INFO L78 Accepts]: Start accepts. Automaton has 118 states. Word has length 78 [2019-01-31 15:08:48,172 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-01-31 15:08:48,172 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 118 states. [2019-01-31 15:08:48,288 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 119 edges. 119 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-01-31 15:08:48,288 INFO L459 AbstractCegarLoop]: Interpolant automaton has 118 states [2019-01-31 15:08:48,289 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 118 interpolants. [2019-01-31 15:08:48,289 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=349, Invalid=13457, Unknown=0, NotChecked=0, Total=13806 [2019-01-31 15:08:48,289 INFO L87 Difference]: Start difference. First operand 79 states and 80 transitions. Second operand 118 states. [2019-01-31 15:09:16,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 15:09:16,321 INFO L93 Difference]: Finished difference Result 120 states and 122 transitions. [2019-01-31 15:09:16,321 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 81 states. [2019-01-31 15:09:16,321 INFO L78 Accepts]: Start accepts. Automaton has 118 states. Word has length 78 [2019-01-31 15:09:16,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-31 15:09:16,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 118 states. [2019-01-31 15:09:16,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 86 transitions. [2019-01-31 15:09:16,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 118 states. [2019-01-31 15:09:16,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 86 transitions. [2019-01-31 15:09:16,324 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 81 states and 86 transitions. [2019-01-31 15:09:16,428 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 86 edges. 86 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-01-31 15:09:16,429 INFO L225 Difference]: With dead ends: 120 [2019-01-31 15:09:16,429 INFO L226 Difference]: Without dead ends: 80 [2019-01-31 15:09:16,430 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 271 GetRequests, 89 SyntacticMatches, 26 SemanticMatches, 156 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3995 ImplicationChecksByTransitivity, 11.6s TimeCoverageRelationStatistics Valid=738, Invalid=24068, Unknown=0, NotChecked=0, Total=24806 [2019-01-31 15:09:16,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states.