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/insertion_sort.i_3.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f57a05f [2019-01-07 18:37:08,944 INFO L170 SettingsManager]: Resetting all preferences to default values... [2019-01-07 18:37:08,946 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2019-01-07 18:37:08,958 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2019-01-07 18:37:08,999 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 [2019-01-07 18:37:09,026 INFO L110 SettingsManager]: Loading preferences was successful [2019-01-07 18:37:09,026 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2019-01-07 18:37:09,027 INFO L131 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2019-01-07 18:37:09,027 INFO L133 SettingsManager]: * Show backtranslation warnings=false [2019-01-07 18:37:09,027 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-01-07 18:37:09,028 INFO L133 SettingsManager]: * User list type=DISABLED [2019-01-07 18:37:09,028 INFO L133 SettingsManager]: * Inline calls to unimplemented procedures=true [2019-01-07 18:37:09,028 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-01-07 18:37:09,029 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-01-07 18:37:09,029 INFO L133 SettingsManager]: * Underlying domain=OctagonDomain [2019-01-07 18:37:09,029 INFO L133 SettingsManager]: * Abstract domain=ArrayDomain [2019-01-07 18:37:09,029 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-01-07 18:37:09,029 INFO L133 SettingsManager]: * Interval Domain=false [2019-01-07 18:37:09,030 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-01-07 18:37:09,031 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2019-01-07 18:37:09,031 INFO L133 SettingsManager]: * Use SBE=true [2019-01-07 18:37:09,031 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-01-07 18:37:09,031 INFO L133 SettingsManager]: * sizeof long=4 [2019-01-07 18:37:09,032 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2019-01-07 18:37:09,032 INFO L133 SettingsManager]: * sizeof POINTER=4 [2019-01-07 18:37:09,032 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2019-01-07 18:37:09,032 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-01-07 18:37:09,032 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-01-07 18:37:09,032 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-01-07 18:37:09,034 INFO L133 SettingsManager]: * sizeof long double=12 [2019-01-07 18:37:09,034 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2019-01-07 18:37:09,034 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-01-07 18:37:09,035 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-01-07 18:37:09,035 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-01-07 18:37:09,035 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2019-01-07 18:37:09,035 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-01-07 18:37:09,036 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-01-07 18:37:09,037 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-01-07 18:37:09,037 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-01-07 18:37:09,037 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-01-07 18:37:09,037 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-01-07 18:37:09,038 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-01-07 18:37:09,038 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-01-07 18:37:09,038 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-01-07 18:37:09,093 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-01-07 18:37:09,108 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-01-07 18:37:09,116 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-01-07 18:37:09,118 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2019-01-07 18:37:09,118 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2019-01-07 18:37:09,119 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/insertion_sort.i_3.bpl [2019-01-07 18:37:09,119 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/insertion_sort.i_3.bpl' [2019-01-07 18:37:09,171 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-01-07 18:37:09,175 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-01-07 18:37:09,176 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-01-07 18:37:09,176 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-01-07 18:37:09,176 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2019-01-07 18:37:09,193 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "insertion_sort.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.01 06:37:09" (1/1) ... [2019-01-07 18:37:09,207 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "insertion_sort.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.01 06:37:09" (1/1) ... [2019-01-07 18:37:09,222 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-01-07 18:37:09,223 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-01-07 18:37:09,223 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-01-07 18:37:09,223 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2019-01-07 18:37:09,236 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "insertion_sort.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.01 06:37:09" (1/1) ... [2019-01-07 18:37:09,237 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "insertion_sort.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.01 06:37:09" (1/1) ... [2019-01-07 18:37:09,238 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "insertion_sort.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.01 06:37:09" (1/1) ... [2019-01-07 18:37:09,238 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "insertion_sort.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.01 06:37:09" (1/1) ... [2019-01-07 18:37:09,245 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "insertion_sort.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.01 06:37:09" (1/1) ... [2019-01-07 18:37:09,247 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "insertion_sort.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.01 06:37:09" (1/1) ... [2019-01-07 18:37:09,248 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "insertion_sort.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.01 06:37:09" (1/1) ... [2019-01-07 18:37:09,250 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-01-07 18:37:09,250 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-01-07 18:37:09,251 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-01-07 18:37:09,251 INFO L276 PluginConnector]: RCFGBuilder initialized [2019-01-07 18:37:09,253 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "insertion_sort.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.01 06:37:09" (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:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-01-07 18:37:09,324 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-01-07 18:37:09,324 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-01-07 18:37:09,629 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-01-07 18:37:09,630 INFO L286 CfgBuilder]: Removed 3 assue(true) statements. [2019-01-07 18:37:09,632 INFO L202 PluginConnector]: Adding new model insertion_sort.i_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.01 06:37:09 BoogieIcfgContainer [2019-01-07 18:37:09,632 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-01-07 18:37:09,633 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-01-07 18:37:09,633 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-01-07 18:37:09,637 INFO L276 PluginConnector]: TraceAbstraction initialized [2019-01-07 18:37:09,637 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "insertion_sort.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.01 06:37:09" (1/2) ... [2019-01-07 18:37:09,639 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d882196 and model type insertion_sort.i_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.01 06:37:09, skipping insertion in model container [2019-01-07 18:37:09,639 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "insertion_sort.i_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.01 06:37:09" (2/2) ... [2019-01-07 18:37:09,641 INFO L112 eAbstractionObserver]: Analyzing ICFG insertion_sort.i_3.bpl [2019-01-07 18:37:09,653 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-01-07 18:37:09,662 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-01-07 18:37:09,681 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-01-07 18:37:09,734 INFO L382 AbstractCegarLoop]: Interprodecural is true [2019-01-07 18:37:09,735 INFO L383 AbstractCegarLoop]: Hoare is true [2019-01-07 18:37:09,735 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-01-07 18:37:09,735 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-01-07 18:37:09,735 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-01-07 18:37:09,736 INFO L387 AbstractCegarLoop]: Difference is false [2019-01-07 18:37:09,736 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-01-07 18:37:09,736 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-01-07 18:37:09,751 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states. [2019-01-07 18:37:09,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-01-07 18:37:09,758 INFO L394 BasicCegarLoop]: Found error trace [2019-01-07 18:37:09,759 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1] [2019-01-07 18:37:09,762 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2019-01-07 18:37:09,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-07 18:37:09,769 INFO L82 PathProgramCache]: Analyzing trace with hash 29955, now seen corresponding path program 1 times [2019-01-07 18:37:09,772 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-01-07 18:37:09,821 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-07 18:37:09,822 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-07 18:37:09,822 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-07 18:37:09,822 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-01-07 18:37:09,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-07 18:37:10,052 INFO L273 TraceCheckUtils]: 0: Hoare triple {9#true} havoc main_#res;havoc main_#t~nondet0, main_#t~post1, main_#t~post2, main_~SIZE~5, main_~i~5, main_~j~5, main_~k~5, main_~key~5, main_~v~5;main_~SIZE~5 := main_#t~nondet0;havoc main_#t~nondet0;havoc main_~i~5;havoc main_~j~5;havoc main_~k~5;havoc main_~key~5;havoc main_~v~5;main_~j~5 := 1; {11#(and (<= 1 ULTIMATE.start_main_~j~5) (<= ULTIMATE.start_main_~j~5 1))} is VALID [2019-01-07 18:37:10,059 INFO L273 TraceCheckUtils]: 1: Hoare triple {11#(and (<= 1 ULTIMATE.start_main_~j~5) (<= ULTIMATE.start_main_~j~5 1))} assume !(main_~j~5 % 4294967296 < main_~SIZE~5 % 4294967296);main_~k~5 := 1;assume !!(main_~k~5 % 4294967296 < main_~SIZE~5 % 4294967296);__VERIFIER_assert_#in~cond := (if main_~v~5[main_~k~5 - 1] <= main_~v~5[main_~k~5] then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond;assume __VERIFIER_assert_~cond == 0;assume !false; {10#false} is VALID [2019-01-07 18:37:10,059 INFO L273 TraceCheckUtils]: 2: Hoare triple {10#false} assume !false; {10#false} is VALID [2019-01-07 18:37:10,062 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-07 18:37:10,064 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-07 18:37:10,064 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-01-07 18:37:10,064 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-01-07 18:37:10,069 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2019-01-07 18:37:10,071 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-01-07 18:37:10,073 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2019-01-07 18:37:10,118 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 3 edges. 3 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-01-07 18:37:10,118 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-01-07 18:37:10,128 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-01-07 18:37:10,129 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-01-07 18:37:10,132 INFO L87 Difference]: Start difference. First operand 6 states. Second operand 3 states. [2019-01-07 18:37:10,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-07 18:37:10,232 INFO L93 Difference]: Finished difference Result 9 states and 10 transitions. [2019-01-07 18:37:10,232 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-01-07 18:37:10,233 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2019-01-07 18:37:10,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-07 18:37:10,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-01-07 18:37:10,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 10 transitions. [2019-01-07 18:37:10,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-01-07 18:37:10,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 10 transitions. [2019-01-07 18:37:10,242 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 10 transitions. [2019-01-07 18:37:10,308 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 10 edges. 10 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-01-07 18:37:10,325 INFO L225 Difference]: With dead ends: 9 [2019-01-07 18:37:10,326 INFO L226 Difference]: Without dead ends: 5 [2019-01-07 18:37:10,331 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-01-07 18:37:10,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5 states. [2019-01-07 18:37:10,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5 to 5. [2019-01-07 18:37:10,426 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-01-07 18:37:10,427 INFO L82 GeneralOperation]: Start isEquivalent. First operand 5 states. Second operand 5 states. [2019-01-07 18:37:10,427 INFO L74 IsIncluded]: Start isIncluded. First operand 5 states. Second operand 5 states. [2019-01-07 18:37:10,428 INFO L87 Difference]: Start difference. First operand 5 states. Second operand 5 states. [2019-01-07 18:37:10,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-07 18:37:10,429 INFO L93 Difference]: Finished difference Result 5 states and 5 transitions. [2019-01-07 18:37:10,430 INFO L276 IsEmpty]: Start isEmpty. Operand 5 states and 5 transitions. [2019-01-07 18:37:10,430 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-07 18:37:10,430 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-01-07 18:37:10,431 INFO L74 IsIncluded]: Start isIncluded. First operand 5 states. Second operand 5 states. [2019-01-07 18:37:10,431 INFO L87 Difference]: Start difference. First operand 5 states. Second operand 5 states. [2019-01-07 18:37:10,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-07 18:37:10,432 INFO L93 Difference]: Finished difference Result 5 states and 5 transitions. [2019-01-07 18:37:10,432 INFO L276 IsEmpty]: Start isEmpty. Operand 5 states and 5 transitions. [2019-01-07 18:37:10,433 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-07 18:37:10,433 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-01-07 18:37:10,433 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-01-07 18:37:10,433 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-01-07 18:37:10,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2019-01-07 18:37:10,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 5 transitions. [2019-01-07 18:37:10,437 INFO L78 Accepts]: Start accepts. Automaton has 5 states and 5 transitions. Word has length 3 [2019-01-07 18:37:10,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-07 18:37:10,437 INFO L480 AbstractCegarLoop]: Abstraction has 5 states and 5 transitions. [2019-01-07 18:37:10,437 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-01-07 18:37:10,438 INFO L276 IsEmpty]: Start isEmpty. Operand 5 states and 5 transitions. [2019-01-07 18:37:10,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-01-07 18:37:10,438 INFO L394 BasicCegarLoop]: Found error trace [2019-01-07 18:37:10,438 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-01-07 18:37:10,439 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2019-01-07 18:37:10,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-07 18:37:10,439 INFO L82 PathProgramCache]: Analyzing trace with hash 930412, now seen corresponding path program 1 times [2019-01-07 18:37:10,440 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-01-07 18:37:10,441 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-07 18:37:10,441 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-07 18:37:10,441 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-07 18:37:10,441 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-01-07 18:37:10,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-07 18:37:10,858 INFO L273 TraceCheckUtils]: 0: Hoare triple {45#true} havoc main_#res;havoc main_#t~nondet0, main_#t~post1, main_#t~post2, main_~SIZE~5, main_~i~5, main_~j~5, main_~k~5, main_~key~5, main_~v~5;main_~SIZE~5 := main_#t~nondet0;havoc main_#t~nondet0;havoc main_~i~5;havoc main_~j~5;havoc main_~k~5;havoc main_~key~5;havoc main_~v~5;main_~j~5 := 1; {47#(and (<= 1 ULTIMATE.start_main_~j~5) (<= ULTIMATE.start_main_~j~5 1))} is VALID [2019-01-07 18:37:10,876 INFO L273 TraceCheckUtils]: 1: Hoare triple {47#(and (<= 1 ULTIMATE.start_main_~j~5) (<= ULTIMATE.start_main_~j~5 1))} assume !!(main_~j~5 % 4294967296 < main_~SIZE~5 % 4294967296);main_~key~5 := main_~v~5[main_~j~5];main_~i~5 := main_~j~5 - 1;assume !(main_~i~5 >= 0 && main_~v~5[main_~i~5] > main_~key~5);main_~v~5 := main_~v~5[main_~i~5 + 1 := main_~key~5];main_#t~post1 := main_~j~5;main_~j~5 := main_#t~post1 + 1;havoc main_#t~post1; {48#(<= (select ULTIMATE.start_main_~v~5 0) (select ULTIMATE.start_main_~v~5 1))} is VALID [2019-01-07 18:37:10,894 INFO L273 TraceCheckUtils]: 2: Hoare triple {48#(<= (select ULTIMATE.start_main_~v~5 0) (select ULTIMATE.start_main_~v~5 1))} assume !(main_~j~5 % 4294967296 < main_~SIZE~5 % 4294967296);main_~k~5 := 1;assume !!(main_~k~5 % 4294967296 < main_~SIZE~5 % 4294967296);__VERIFIER_assert_#in~cond := (if main_~v~5[main_~k~5 - 1] <= main_~v~5[main_~k~5] then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond;assume __VERIFIER_assert_~cond == 0;assume !false; {46#false} is VALID [2019-01-07 18:37:10,895 INFO L273 TraceCheckUtils]: 3: Hoare triple {46#false} assume !false; {46#false} is VALID [2019-01-07 18:37:10,895 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-07 18:37:10,896 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-07 18:37:10,896 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-01-07 18:37:10,897 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 5 with the following transitions: [2019-01-07 18:37:10,902 INFO L207 CegarAbsIntRunner]: [0], [5], [7], [9] [2019-01-07 18:37:10,971 INFO L148 AbstractInterpreter]: Using domain ArrayDomain [2019-01-07 18:37:10,972 INFO L101 FixpointEngine]: Starting fixpoint engine with domain ArrayDomain (maxUnwinding=3, maxParallelStates=2) [2019-01-07 18:37:11,094 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2019-01-07 18:37:17,577 WARN L212 ngHoareTripleChecker]: Soundness check inconclusive for the following hoare triple [2019-01-07 18:37:17,577 WARN L217 ngHoareTripleChecker]: Expected: VALID Actual: UNKNOWN [2019-01-07 18:37:17,582 WARN L219 ngHoareTripleChecker]: Solver was "Z3" in version "4.8.3" [2019-01-07 18:37:17,583 WARN L223 ngHoareTripleChecker]: -- [2019-01-07 18:37:17,583 WARN L224 ngHoareTripleChecker]: Pre: {2147483637#(or (forall ((v_idx_21 Int) (v_idx_22 Int) (v_idx_20 Int) (v_idx_19 Int)) (exists ((v_v_8_1 Int) (v_v_3_1 Int) (v_v_4_1 Int)) (and (<= (- (- c_ULTIMATE.start_main_~j~5) c_ULTIMATE.start_main_~j~5) (- 4)) (<= (- (- c_ULTIMATE.start_main_~i~5) c_ULTIMATE.start_main_~j~5) (- 2)) (<= (- (- c_ULTIMATE.start_main_~i~5) c_ULTIMATE.start_main_~i~5) 0) (<= (- c_ULTIMATE.start_main_~j~5 (- c_ULTIMATE.start_main_~j~5)) 4) (or (= (select c_ULTIMATE.start_main_~v~5 v_idx_20) v_v_4_1) (<= 1 v_idx_20) (< v_idx_20 0)) (or (< v_idx_22 2) (= v_v_8_1 (select c_ULTIMATE.start_main_~v~5 v_idx_22))) (<= v_v_4_1 c_ULTIMATE.start_main_~key~5) (or (= v_v_3_1 (select c_ULTIMATE.start_main_~v~5 v_idx_19)) (<= 0 v_idx_19)) (<= (- c_ULTIMATE.start_main_~i~5 (- c_ULTIMATE.start_main_~j~5)) 2) (<= (- c_ULTIMATE.start_main_~i~5 c_ULTIMATE.start_main_~j~5) (- 2)) (<= (- (- c_ULTIMATE.start_main_~i~5) (- c_ULTIMATE.start_main_~j~5)) 2) (or (< v_idx_21 1) (<= 2 v_idx_21) (= (select c_ULTIMATE.start_main_~v~5 v_idx_21) c_ULTIMATE.start_main_~key~5)) (<= (- (- c_ULTIMATE.start_main_~key~5) (- v_v_4_1)) 0) (<= 2 c_ULTIMATE.start_main_~j~5) (<= c_ULTIMATE.start_main_~j~5 2) (<= 0 c_ULTIMATE.start_main_~i~5) (<= c_ULTIMATE.start_main_~i~5 0) (<= (- c_ULTIMATE.start_main_~i~5 (- c_ULTIMATE.start_main_~i~5)) 0)))) (forall ((v_idx_18 Int)) (exists ((v_v_2_1 Int)) (and (<= (- (- c_ULTIMATE.start_main_~j~5) c_ULTIMATE.start_main_~j~5) (- 2)) (= v_v_2_1 (select c_ULTIMATE.start_main_~v~5 v_idx_18)) (<= (- c_ULTIMATE.start_main_~j~5 (- c_ULTIMATE.start_main_~j~5)) 2)))))} [2019-01-07 18:37:17,584 WARN L228 ngHoareTripleChecker]: Action: assume !!(main_~j~5 % 4294967296 < main_~SIZE~5 % 4294967296);main_~key~5 := main_~v~5[main_~j~5];main_~i~5 := main_~j~5 - 1;assume !(main_~i~5 >= 0 && main_~v~5[main_~i~5] > main_~key~5);main_~v~5 := main_~v~5[main_~i~5 + 1 := main_~key~5];main_#t~post1 := main_~j~5;main_~j~5 := main_#t~post1 + 1;havoc main_#t~post1; [2019-01-07 18:37:17,584 WARN L184 hOps$ForEachOp$OfRef]: ActionStr: (and (or (not (<= 0 c_ULTIMATE.start_main_~i~5_primed)) (not (< c_ULTIMATE.start_main_~key~5_primed (select c_ULTIMATE.start_main_~v~5 c_ULTIMATE.start_main_~i~5_primed)))) (= c_ULTIMATE.start_main_~v~5_primed (store c_ULTIMATE.start_main_~v~5 (+ c_ULTIMATE.start_main_~i~5_primed 1) c_ULTIMATE.start_main_~key~5_primed)) (= (+ c_ULTIMATE.start_main_~j~5 1) c_ULTIMATE.start_main_~j~5_primed) (= c_ULTIMATE.start_main_~i~5_primed (+ c_ULTIMATE.start_main_~j~5 (- 1))) (< (mod c_ULTIMATE.start_main_~j~5 4294967296) (mod c_ULTIMATE.start_main_~SIZE~5 4294967296)) (= c_ULTIMATE.start_main_~key~5_primed (select c_ULTIMATE.start_main_~v~5 c_ULTIMATE.start_main_~j~5))) [2019-01-07 18:37:17,585 WARN L230 ngHoareTripleChecker]: Post: {2147483636#(or (forall ((v_idx_30 Int) (v_idx_31 Int) (v_idx_29 Int) (v_idx_27 Int) (v_idx_28 Int)) (exists ((v_v_23_1 Int) (v_v_3_1 Int) (v_v_4_1 Int) (v_v_27_1 Int)) (and (or (<= 6 (+ v_idx_30 c_ULTIMATE.start_main_~j~5)) (= (select c_ULTIMATE.start_main_~v~5 v_idx_30) c_ULTIMATE.start_main_~key~5) (< (+ v_idx_30 c_ULTIMATE.start_main_~i~5) 3)) (<= (* 2 c_ULTIMATE.start_main_~i~5) 2) (<= (- (- c_ULTIMATE.start_main_~j~5) c_ULTIMATE.start_main_~j~5) (- 6)) (<= v_v_23_1 c_ULTIMATE.start_main_~key~5) (<= (+ c_ULTIMATE.start_main_~i~5 2) c_ULTIMATE.start_main_~j~5) (<= c_ULTIMATE.start_main_~j~5 3) (<= (- c_ULTIMATE.start_main_~i~5 (- c_ULTIMATE.start_main_~i~5)) 2) (<= c_ULTIMATE.start_main_~i~5 1) (<= (- (- c_ULTIMATE.start_main_~i~5) c_ULTIMATE.start_main_~j~5) (- 4)) (<= (- c_ULTIMATE.start_main_~i~5 c_ULTIMATE.start_main_~j~5) (- 2)) (<= c_ULTIMATE.start_main_~j~5 (+ c_ULTIMATE.start_main_~i~5 2)) (<= (- (- c_ULTIMATE.start_main_~i~5) (- c_ULTIMATE.start_main_~j~5)) 2) (<= (- (- c_ULTIMATE.start_main_~key~5) (- v_v_4_1)) 0) (<= 6 (* 2 c_ULTIMATE.start_main_~j~5)) (<= 1 c_ULTIMATE.start_main_~i~5) (<= 4 (+ c_ULTIMATE.start_main_~j~5 c_ULTIMATE.start_main_~i~5)) (<= (* 2 c_ULTIMATE.start_main_~j~5) 6) (<= (+ c_ULTIMATE.start_main_~j~5 c_ULTIMATE.start_main_~i~5) 4) (or (= v_v_3_1 (select c_ULTIMATE.start_main_~v~5 v_idx_27)) (<= 0 v_idx_27)) (<= 3 c_ULTIMATE.start_main_~j~5) (<= v_v_4_1 c_ULTIMATE.start_main_~key~5) (or (< v_idx_29 1) (<= 3 (+ c_ULTIMATE.start_main_~i~5 v_idx_29)) (= (select c_ULTIMATE.start_main_~v~5 v_idx_29) v_v_23_1)) (or (<= 1 v_idx_28) (= v_v_4_1 (select c_ULTIMATE.start_main_~v~5 v_idx_28)) (< v_idx_28 0)) (<= 2 (* 2 c_ULTIMATE.start_main_~i~5)) (<= (- (- v_v_23_1) (- v_v_4_1)) 0) (<= (- c_ULTIMATE.start_main_~j~5 (- c_ULTIMATE.start_main_~j~5)) 6) (or (= (select c_ULTIMATE.start_main_~v~5 v_idx_31) v_v_27_1) (< (+ v_idx_31 c_ULTIMATE.start_main_~j~5) 6)) (<= (- (- c_ULTIMATE.start_main_~i~5) c_ULTIMATE.start_main_~i~5) (- 2)) (<= (- c_ULTIMATE.start_main_~i~5 (- c_ULTIMATE.start_main_~j~5)) 4) (<= (- (- c_ULTIMATE.start_main_~key~5) (- v_v_23_1)) 0)))) (forall ((v_idx_25 Int) (v_idx_26 Int) (v_idx_23 Int) (v_idx_24 Int)) (exists ((v_v_21_1 Int) (v_v_17_1 Int) (v_v_16_1 Int)) (and (<= (- (- c_ULTIMATE.start_main_~j~5) c_ULTIMATE.start_main_~j~5) (- 4)) (<= (- (- c_ULTIMATE.start_main_~i~5) c_ULTIMATE.start_main_~j~5) (- 2)) (<= v_v_17_1 c_ULTIMATE.start_main_~key~5) (or (<= 0 v_idx_23) (= (select c_ULTIMATE.start_main_~v~5 v_idx_23) v_v_16_1)) (<= (- (- c_ULTIMATE.start_main_~i~5) c_ULTIMATE.start_main_~i~5) 0) (or (<= 1 v_idx_24) (= (select c_ULTIMATE.start_main_~v~5 v_idx_24) v_v_17_1) (< v_idx_24 0)) (<= (- c_ULTIMATE.start_main_~j~5 (- c_ULTIMATE.start_main_~j~5)) 4) (<= (- (- c_ULTIMATE.start_main_~key~5) (- v_v_17_1)) 0) (<= (- c_ULTIMATE.start_main_~i~5 (- c_ULTIMATE.start_main_~j~5)) 2) (or (<= 2 v_idx_25) (= (select c_ULTIMATE.start_main_~v~5 v_idx_25) c_ULTIMATE.start_main_~key~5) (< v_idx_25 1)) (<= (- c_ULTIMATE.start_main_~i~5 c_ULTIMATE.start_main_~j~5) (- 2)) (<= (- (- c_ULTIMATE.start_main_~i~5) (- c_ULTIMATE.start_main_~j~5)) 2) (or (= (select c_ULTIMATE.start_main_~v~5 v_idx_26) v_v_21_1) (< v_idx_26 2)) (<= 2 c_ULTIMATE.start_main_~j~5) (<= c_ULTIMATE.start_main_~j~5 2) (<= 0 c_ULTIMATE.start_main_~i~5) (<= c_ULTIMATE.start_main_~i~5 0) (<= (- c_ULTIMATE.start_main_~i~5 (- c_ULTIMATE.start_main_~i~5)) 0)))))} [2019-01-07 18:37:17,585 WARN L263 ngHoareTripleChecker]: unsat core / model generation is disabled, enable it to get more details [2019-01-07 18:37:17,644 WARN L268 ngHoareTripleChecker]: -- [2019-01-07 18:37:17,644 WARN L269 ngHoareTripleChecker]: Simplified triple [2019-01-07 18:37:19,788 WARN L181 SmtUtils]: Spent 2.14 s on a formula simplification that was a NOOP. DAG size: 75 [2019-01-07 18:37:19,788 WARN L270 ngHoareTripleChecker]: Pre: {2147483637#(or (forall ((v_idx_21 Int) (v_idx_22 Int) (v_idx_20 Int) (v_idx_19 Int)) (exists ((v_v_8_1 Int) (v_v_3_1 Int) (v_v_4_1 Int)) (and (<= (- (- ULTIMATE.start_main_~j~5) ULTIMATE.start_main_~j~5) (- 4)) (<= (- (- ULTIMATE.start_main_~i~5) ULTIMATE.start_main_~j~5) (- 2)) (<= (- (- ULTIMATE.start_main_~i~5) ULTIMATE.start_main_~i~5) 0) (<= (- ULTIMATE.start_main_~j~5 (- ULTIMATE.start_main_~j~5)) 4) (or (= (select ULTIMATE.start_main_~v~5 v_idx_20) v_v_4_1) (<= 1 v_idx_20) (< v_idx_20 0)) (or (< v_idx_22 2) (= v_v_8_1 (select ULTIMATE.start_main_~v~5 v_idx_22))) (<= v_v_4_1 ULTIMATE.start_main_~key~5) (or (= v_v_3_1 (select ULTIMATE.start_main_~v~5 v_idx_19)) (<= 0 v_idx_19)) (<= (- ULTIMATE.start_main_~i~5 (- ULTIMATE.start_main_~j~5)) 2) (<= (- ULTIMATE.start_main_~i~5 ULTIMATE.start_main_~j~5) (- 2)) (<= (- (- ULTIMATE.start_main_~i~5) (- ULTIMATE.start_main_~j~5)) 2) (or (< v_idx_21 1) (<= 2 v_idx_21) (= (select ULTIMATE.start_main_~v~5 v_idx_21) ULTIMATE.start_main_~key~5)) (<= (- (- ULTIMATE.start_main_~key~5) (- v_v_4_1)) 0) (<= 2 ULTIMATE.start_main_~j~5) (<= ULTIMATE.start_main_~j~5 2) (<= 0 ULTIMATE.start_main_~i~5) (<= ULTIMATE.start_main_~i~5 0) (<= (- ULTIMATE.start_main_~i~5 (- ULTIMATE.start_main_~i~5)) 0)))) (forall ((v_idx_18 Int)) (exists ((v_v_2_1 Int)) (and (<= (- (- ULTIMATE.start_main_~j~5) ULTIMATE.start_main_~j~5) (- 2)) (= v_v_2_1 (select ULTIMATE.start_main_~v~5 v_idx_18)) (<= (- ULTIMATE.start_main_~j~5 (- ULTIMATE.start_main_~j~5)) 2)))))} [2019-01-07 18:37:19,789 WARN L274 ngHoareTripleChecker]: Action: assume !!(main_~j~5 % 4294967296 < main_~SIZE~5 % 4294967296);main_~key~5 := main_~v~5[main_~j~5];main_~i~5 := main_~j~5 - 1;assume !(main_~i~5 >= 0 && main_~v~5[main_~i~5] > main_~key~5);main_~v~5 := main_~v~5[main_~i~5 + 1 := main_~key~5];main_#t~post1 := main_~j~5;main_~j~5 := main_#t~post1 + 1;havoc main_#t~post1; [2019-01-07 18:37:19,789 WARN L184 hOps$ForEachOp$OfRef]: ActionStr: (and (or (not (<= 0 c_ULTIMATE.start_main_~i~5_primed)) (not (< c_ULTIMATE.start_main_~key~5_primed (select c_ULTIMATE.start_main_~v~5 c_ULTIMATE.start_main_~i~5_primed)))) (= c_ULTIMATE.start_main_~v~5_primed (store c_ULTIMATE.start_main_~v~5 (+ c_ULTIMATE.start_main_~i~5_primed 1) c_ULTIMATE.start_main_~key~5_primed)) (= (+ c_ULTIMATE.start_main_~j~5 1) c_ULTIMATE.start_main_~j~5_primed) (= c_ULTIMATE.start_main_~i~5_primed (+ c_ULTIMATE.start_main_~j~5 (- 1))) (< (mod c_ULTIMATE.start_main_~j~5 4294967296) (mod c_ULTIMATE.start_main_~SIZE~5 4294967296)) (= c_ULTIMATE.start_main_~key~5_primed (select c_ULTIMATE.start_main_~v~5 c_ULTIMATE.start_main_~j~5))) [2019-01-07 18:37:24,548 WARN L181 SmtUtils]: Spent 4.76 s on a formula simplification that was a NOOP. DAG size: 140 [2019-01-07 18:37:24,549 WARN L276 ngHoareTripleChecker]: Post: {2147483636#(or (forall ((v_idx_30 Int) (v_idx_31 Int) (v_idx_29 Int) (v_idx_27 Int) (v_idx_28 Int)) (exists ((v_v_23_1 Int) (v_v_3_1 Int) (v_v_4_1 Int) (v_v_27_1 Int)) (and (or (<= 6 (+ v_idx_30 ULTIMATE.start_main_~j~5)) (= (select ULTIMATE.start_main_~v~5 v_idx_30) ULTIMATE.start_main_~key~5) (< (+ v_idx_30 ULTIMATE.start_main_~i~5) 3)) (<= (* 2 ULTIMATE.start_main_~i~5) 2) (<= (- (- ULTIMATE.start_main_~j~5) ULTIMATE.start_main_~j~5) (- 6)) (<= v_v_23_1 ULTIMATE.start_main_~key~5) (<= (+ ULTIMATE.start_main_~i~5 2) ULTIMATE.start_main_~j~5) (<= ULTIMATE.start_main_~j~5 3) (<= (- ULTIMATE.start_main_~i~5 (- ULTIMATE.start_main_~i~5)) 2) (<= ULTIMATE.start_main_~i~5 1) (<= (- (- ULTIMATE.start_main_~i~5) ULTIMATE.start_main_~j~5) (- 4)) (<= (- ULTIMATE.start_main_~i~5 ULTIMATE.start_main_~j~5) (- 2)) (<= ULTIMATE.start_main_~j~5 (+ ULTIMATE.start_main_~i~5 2)) (<= (- (- ULTIMATE.start_main_~i~5) (- ULTIMATE.start_main_~j~5)) 2) (<= (- (- ULTIMATE.start_main_~key~5) (- v_v_4_1)) 0) (<= 6 (* 2 ULTIMATE.start_main_~j~5)) (<= 1 ULTIMATE.start_main_~i~5) (<= 4 (+ ULTIMATE.start_main_~j~5 ULTIMATE.start_main_~i~5)) (<= (* 2 ULTIMATE.start_main_~j~5) 6) (<= (+ ULTIMATE.start_main_~j~5 ULTIMATE.start_main_~i~5) 4) (or (= v_v_3_1 (select ULTIMATE.start_main_~v~5 v_idx_27)) (<= 0 v_idx_27)) (<= 3 ULTIMATE.start_main_~j~5) (<= v_v_4_1 ULTIMATE.start_main_~key~5) (or (< v_idx_29 1) (<= 3 (+ ULTIMATE.start_main_~i~5 v_idx_29)) (= (select ULTIMATE.start_main_~v~5 v_idx_29) v_v_23_1)) (or (<= 1 v_idx_28) (= v_v_4_1 (select ULTIMATE.start_main_~v~5 v_idx_28)) (< v_idx_28 0)) (<= 2 (* 2 ULTIMATE.start_main_~i~5)) (<= (- (- v_v_23_1) (- v_v_4_1)) 0) (<= (- ULTIMATE.start_main_~j~5 (- ULTIMATE.start_main_~j~5)) 6) (or (= (select ULTIMATE.start_main_~v~5 v_idx_31) v_v_27_1) (< (+ v_idx_31 ULTIMATE.start_main_~j~5) 6)) (<= (- (- ULTIMATE.start_main_~i~5) ULTIMATE.start_main_~i~5) (- 2)) (<= (- ULTIMATE.start_main_~i~5 (- ULTIMATE.start_main_~j~5)) 4) (<= (- (- ULTIMATE.start_main_~key~5) (- v_v_23_1)) 0)))) (forall ((v_idx_25 Int) (v_idx_26 Int) (v_idx_23 Int) (v_idx_24 Int)) (exists ((v_v_21_1 Int) (v_v_17_1 Int) (v_v_16_1 Int)) (and (<= (- (- ULTIMATE.start_main_~j~5) ULTIMATE.start_main_~j~5) (- 4)) (<= (- (- ULTIMATE.start_main_~i~5) ULTIMATE.start_main_~j~5) (- 2)) (<= v_v_17_1 ULTIMATE.start_main_~key~5) (or (<= 0 v_idx_23) (= (select ULTIMATE.start_main_~v~5 v_idx_23) v_v_16_1)) (<= (- (- ULTIMATE.start_main_~i~5) ULTIMATE.start_main_~i~5) 0) (or (<= 1 v_idx_24) (= (select ULTIMATE.start_main_~v~5 v_idx_24) v_v_17_1) (< v_idx_24 0)) (<= (- ULTIMATE.start_main_~j~5 (- ULTIMATE.start_main_~j~5)) 4) (<= (- (- ULTIMATE.start_main_~key~5) (- v_v_17_1)) 0) (<= (- ULTIMATE.start_main_~i~5 (- ULTIMATE.start_main_~j~5)) 2) (or (<= 2 v_idx_25) (= (select ULTIMATE.start_main_~v~5 v_idx_25) ULTIMATE.start_main_~key~5) (< v_idx_25 1)) (<= (- ULTIMATE.start_main_~i~5 ULTIMATE.start_main_~j~5) (- 2)) (<= (- (- ULTIMATE.start_main_~i~5) (- ULTIMATE.start_main_~j~5)) 2) (or (= (select ULTIMATE.start_main_~v~5 v_idx_26) v_v_21_1) (< v_idx_26 2)) (<= 2 ULTIMATE.start_main_~j~5) (<= ULTIMATE.start_main_~j~5 2) (<= 0 ULTIMATE.start_main_~i~5) (<= ULTIMATE.start_main_~i~5 0) (<= (- ULTIMATE.start_main_~i~5 (- ULTIMATE.start_main_~i~5)) 0)))))} [2019-01-07 18:37:32,554 WARN L212 ngHoareTripleChecker]: Soundness check inconclusive for the following hoare triple [2019-01-07 18:37:32,554 WARN L217 ngHoareTripleChecker]: Expected: VALID Actual: UNKNOWN [2019-01-07 18:37:32,555 WARN L219 ngHoareTripleChecker]: Solver was "Z3" in version "4.8.3" [2019-01-07 18:37:32,555 WARN L223 ngHoareTripleChecker]: -- [2019-01-07 18:37:32,555 WARN L224 ngHoareTripleChecker]: Pre: {2147483633#(or (forall ((v_idx_42 Int)) (exists ((v_v_183_1 Int)) (and (= v_v_183_1 (select c_ULTIMATE.start_main_~v~5 v_idx_42)) (<= (- c_ULTIMATE.start_main_~j~5 (- c_ULTIMATE.start_main_~j~5)) 6) (<= (- (- c_ULTIMATE.start_main_~j~5) c_ULTIMATE.start_main_~j~5) (- 2))))) (forall ((v_idx_41 Int) (v_idx_40 Int) (v_idx_38 Int) (v_idx_39 Int)) (exists ((v_v_8_1 Int) (v_v_3_1 Int) (v_v_4_1 Int)) (and (<= (- (- c_ULTIMATE.start_main_~j~5) c_ULTIMATE.start_main_~j~5) (- 4)) (<= (- (- c_ULTIMATE.start_main_~i~5) c_ULTIMATE.start_main_~j~5) (- 2)) (<= (- (- c_ULTIMATE.start_main_~i~5) c_ULTIMATE.start_main_~i~5) 0) (or (= c_ULTIMATE.start_main_~key~5 (select c_ULTIMATE.start_main_~v~5 v_idx_40)) (<= 2 v_idx_40) (< v_idx_40 1)) (<= (- c_ULTIMATE.start_main_~j~5 (- c_ULTIMATE.start_main_~j~5)) 4) (<= v_v_4_1 c_ULTIMATE.start_main_~key~5) (or (< v_idx_41 2) (= v_v_8_1 (select c_ULTIMATE.start_main_~v~5 v_idx_41))) (or (= v_v_4_1 (select c_ULTIMATE.start_main_~v~5 v_idx_39)) (< v_idx_39 0) (<= 1 v_idx_39)) (<= (- c_ULTIMATE.start_main_~i~5 (- c_ULTIMATE.start_main_~j~5)) 2) (<= (- c_ULTIMATE.start_main_~i~5 c_ULTIMATE.start_main_~j~5) (- 2)) (<= (- (- c_ULTIMATE.start_main_~i~5) (- c_ULTIMATE.start_main_~j~5)) 2) (<= (- (- c_ULTIMATE.start_main_~key~5) (- v_v_4_1)) 0) (<= 2 c_ULTIMATE.start_main_~j~5) (or (<= 0 v_idx_38) (= v_v_3_1 (select c_ULTIMATE.start_main_~v~5 v_idx_38))) (<= c_ULTIMATE.start_main_~j~5 2) (<= 0 c_ULTIMATE.start_main_~i~5) (<= c_ULTIMATE.start_main_~i~5 0) (<= (- c_ULTIMATE.start_main_~i~5 (- c_ULTIMATE.start_main_~i~5)) 0)))))} [2019-01-07 18:37:32,556 WARN L228 ngHoareTripleChecker]: Action: assume !!(main_~j~5 % 4294967296 < main_~SIZE~5 % 4294967296);main_~key~5 := main_~v~5[main_~j~5];main_~i~5 := main_~j~5 - 1;assume !(main_~i~5 >= 0 && main_~v~5[main_~i~5] > main_~key~5);main_~v~5 := main_~v~5[main_~i~5 + 1 := main_~key~5];main_#t~post1 := main_~j~5;main_~j~5 := main_#t~post1 + 1;havoc main_#t~post1; [2019-01-07 18:37:32,556 WARN L184 hOps$ForEachOp$OfRef]: ActionStr: (and (or (not (<= 0 c_ULTIMATE.start_main_~i~5_primed)) (not (< c_ULTIMATE.start_main_~key~5_primed (select c_ULTIMATE.start_main_~v~5 c_ULTIMATE.start_main_~i~5_primed)))) (= c_ULTIMATE.start_main_~v~5_primed (store c_ULTIMATE.start_main_~v~5 (+ c_ULTIMATE.start_main_~i~5_primed 1) c_ULTIMATE.start_main_~key~5_primed)) (= (+ c_ULTIMATE.start_main_~j~5 1) c_ULTIMATE.start_main_~j~5_primed) (= c_ULTIMATE.start_main_~i~5_primed (+ c_ULTIMATE.start_main_~j~5 (- 1))) (< (mod c_ULTIMATE.start_main_~j~5 4294967296) (mod c_ULTIMATE.start_main_~SIZE~5 4294967296)) (= c_ULTIMATE.start_main_~key~5_primed (select c_ULTIMATE.start_main_~v~5 c_ULTIMATE.start_main_~j~5))) [2019-01-07 18:37:32,556 WARN L230 ngHoareTripleChecker]: Post: {2147483632#(forall ((v_idx_45 Int) (v_idx_46 Int) (v_idx_43 Int) (v_idx_44 Int)) (exists ((v_v_201_1 Int) (v_v_197_1 Int) (v_v_196_1 Int)) (and (or (= v_v_201_1 (select c_ULTIMATE.start_main_~v~5 v_idx_46)) (< v_idx_46 c_ULTIMATE.start_main_~j~5)) (<= v_v_197_1 c_ULTIMATE.start_main_~key~5) (<= (- c_ULTIMATE.start_main_~i~5 (- c_ULTIMATE.start_main_~i~5)) 4) (<= (- (- c_ULTIMATE.start_main_~j~5) c_ULTIMATE.start_main_~j~5) (- 4)) (<= (- (- c_ULTIMATE.start_main_~i~5) c_ULTIMATE.start_main_~j~5) (- 2)) (<= (+ c_ULTIMATE.start_main_~i~5 2) c_ULTIMATE.start_main_~j~5) (<= (- (- c_ULTIMATE.start_main_~i~5) c_ULTIMATE.start_main_~i~5) 0) (<= (+ c_ULTIMATE.start_main_~j~5 c_ULTIMATE.start_main_~i~5) 6) (<= 2 (+ c_ULTIMATE.start_main_~j~5 c_ULTIMATE.start_main_~i~5)) (or (= v_v_196_1 (select c_ULTIMATE.start_main_~v~5 v_idx_43)) (<= c_ULTIMATE.start_main_~i~5 v_idx_43)) (<= (- c_ULTIMATE.start_main_~i~5 (- c_ULTIMATE.start_main_~j~5)) 6) (<= (- c_ULTIMATE.start_main_~j~5 (- c_ULTIMATE.start_main_~j~5)) 8) (<= (- c_ULTIMATE.start_main_~i~5 c_ULTIMATE.start_main_~j~5) (- 2)) (<= c_ULTIMATE.start_main_~j~5 (+ c_ULTIMATE.start_main_~i~5 2)) (<= (- (- c_ULTIMATE.start_main_~i~5) (- c_ULTIMATE.start_main_~j~5)) 2) (or (= (select c_ULTIMATE.start_main_~v~5 v_idx_45) c_ULTIMATE.start_main_~key~5) (< (+ v_idx_45 1) c_ULTIMATE.start_main_~j~5) (<= c_ULTIMATE.start_main_~j~5 v_idx_45)) (<= (* 2 c_ULTIMATE.start_main_~i~5) 4) (<= (- (- c_ULTIMATE.start_main_~key~5) (- v_v_197_1)) 0) (<= 4 (* 2 c_ULTIMATE.start_main_~j~5)) (<= (* 2 c_ULTIMATE.start_main_~j~5) 8) (<= 0 (* 2 c_ULTIMATE.start_main_~i~5)) (or (< v_idx_44 c_ULTIMATE.start_main_~i~5) (<= c_ULTIMATE.start_main_~j~5 (+ v_idx_44 1)) (= v_v_197_1 (select c_ULTIMATE.start_main_~v~5 v_idx_44))))))} [2019-01-07 18:37:32,556 WARN L263 ngHoareTripleChecker]: unsat core / model generation is disabled, enable it to get more details [2019-01-07 18:37:32,599 WARN L268 ngHoareTripleChecker]: -- [2019-01-07 18:37:32,600 WARN L269 ngHoareTripleChecker]: Simplified triple [2019-01-07 18:37:32,725 WARN L181 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 16 [2019-01-07 18:37:32,725 WARN L270 ngHoareTripleChecker]: Pre: {2147483633#(forall ((v_idx_42 Int)) (exists ((v_v_183_1 Int)) (and (= v_v_183_1 (select ULTIMATE.start_main_~v~5 v_idx_42)) (<= (- ULTIMATE.start_main_~j~5 (- ULTIMATE.start_main_~j~5)) 6) (<= (- (- ULTIMATE.start_main_~j~5) ULTIMATE.start_main_~j~5) (- 2)))))} [2019-01-07 18:37:32,726 WARN L274 ngHoareTripleChecker]: Action: assume !!(main_~j~5 % 4294967296 < main_~SIZE~5 % 4294967296);main_~key~5 := main_~v~5[main_~j~5];main_~i~5 := main_~j~5 - 1;assume !(main_~i~5 >= 0 && main_~v~5[main_~i~5] > main_~key~5);main_~v~5 := main_~v~5[main_~i~5 + 1 := main_~key~5];main_#t~post1 := main_~j~5;main_~j~5 := main_#t~post1 + 1;havoc main_#t~post1; [2019-01-07 18:37:32,726 WARN L184 hOps$ForEachOp$OfRef]: ActionStr: (and (or (not (<= 0 c_ULTIMATE.start_main_~i~5_primed)) (not (< c_ULTIMATE.start_main_~key~5_primed (select c_ULTIMATE.start_main_~v~5 c_ULTIMATE.start_main_~i~5_primed)))) (= c_ULTIMATE.start_main_~v~5_primed (store c_ULTIMATE.start_main_~v~5 (+ c_ULTIMATE.start_main_~i~5_primed 1) c_ULTIMATE.start_main_~key~5_primed)) (= (+ c_ULTIMATE.start_main_~j~5 1) c_ULTIMATE.start_main_~j~5_primed) (= c_ULTIMATE.start_main_~i~5_primed (+ c_ULTIMATE.start_main_~j~5 (- 1))) (< (mod c_ULTIMATE.start_main_~j~5 4294967296) (mod c_ULTIMATE.start_main_~SIZE~5 4294967296)) (= c_ULTIMATE.start_main_~key~5_primed (select c_ULTIMATE.start_main_~v~5 c_ULTIMATE.start_main_~j~5))) [2019-01-07 18:37:32,967 WARN L276 ngHoareTripleChecker]: Post: {2147483632#(and (<= (- ULTIMATE.start_main_~i~5 (- ULTIMATE.start_main_~i~5)) 4) (<= (- (- ULTIMATE.start_main_~j~5) ULTIMATE.start_main_~j~5) (- 4)) (<= (- (- ULTIMATE.start_main_~i~5) ULTIMATE.start_main_~j~5) (- 2)) (<= (+ ULTIMATE.start_main_~i~5 2) ULTIMATE.start_main_~j~5) (<= (- (- ULTIMATE.start_main_~i~5) ULTIMATE.start_main_~i~5) 0) (<= (+ ULTIMATE.start_main_~j~5 ULTIMATE.start_main_~i~5) 6) (<= 2 (+ ULTIMATE.start_main_~j~5 ULTIMATE.start_main_~i~5)) (<= (- ULTIMATE.start_main_~i~5 (- ULTIMATE.start_main_~j~5)) 6) (<= (- ULTIMATE.start_main_~j~5 (- ULTIMATE.start_main_~j~5)) 8) (<= (- ULTIMATE.start_main_~i~5 ULTIMATE.start_main_~j~5) (- 2)) (<= ULTIMATE.start_main_~j~5 (+ ULTIMATE.start_main_~i~5 2)) (<= (- (- ULTIMATE.start_main_~i~5) (- ULTIMATE.start_main_~j~5)) 2) (<= (* 2 ULTIMATE.start_main_~i~5) 4) (<= 4 (* 2 ULTIMATE.start_main_~j~5)) (forall ((v_idx_45 Int)) (or (= (select ULTIMATE.start_main_~v~5 v_idx_45) ULTIMATE.start_main_~key~5) (< (+ v_idx_45 1) ULTIMATE.start_main_~j~5) (<= ULTIMATE.start_main_~j~5 v_idx_45))) (<= (* 2 ULTIMATE.start_main_~j~5) 8) (forall ((v_idx_44 Int)) (or (< v_idx_44 ULTIMATE.start_main_~i~5) (<= (select ULTIMATE.start_main_~v~5 v_idx_44) ULTIMATE.start_main_~key~5) (<= ULTIMATE.start_main_~j~5 (+ v_idx_44 1)))) (<= 0 (* 2 ULTIMATE.start_main_~i~5)))} [2019-01-07 18:37:39,055 WARN L212 ngHoareTripleChecker]: Soundness check inconclusive for the following hoare triple [2019-01-07 18:37:39,056 WARN L217 ngHoareTripleChecker]: Expected: VALID Actual: UNKNOWN [2019-01-07 18:37:39,056 WARN L219 ngHoareTripleChecker]: Solver was "Z3" in version "4.8.3" [2019-01-07 18:37:39,057 WARN L223 ngHoareTripleChecker]: -- [2019-01-07 18:37:39,057 WARN L224 ngHoareTripleChecker]: Pre: {2147483627#(or (forall ((v_idx_60 Int)) (exists ((v_v_224_1 Int)) (and (<= (- c_ULTIMATE.start_main_~j~5 (- c_ULTIMATE.start_main_~j~5)) 4294967296) (= v_v_224_1 (select c_ULTIMATE.start_main_~v~5 v_idx_60)) (<= (- (- c_ULTIMATE.start_main_~j~5) c_ULTIMATE.start_main_~j~5) (- 2))))) (forall ((v_idx_58 Int) (v_idx_59 Int) (v_idx_56 Int) (v_idx_57 Int)) (exists ((v_v_8_1 Int) (v_v_3_1 Int) (v_v_4_1 Int)) (and (or (<= 0 v_idx_56) (= v_v_3_1 (select c_ULTIMATE.start_main_~v~5 v_idx_56))) (or (< v_idx_57 0) (= v_v_4_1 (select c_ULTIMATE.start_main_~v~5 v_idx_57)) (<= 1 v_idx_57)) (<= (- (- c_ULTIMATE.start_main_~j~5) c_ULTIMATE.start_main_~j~5) (- 4)) (<= (- (- c_ULTIMATE.start_main_~i~5) c_ULTIMATE.start_main_~j~5) (- 2)) (<= (- (- c_ULTIMATE.start_main_~i~5) c_ULTIMATE.start_main_~i~5) 0) (<= (- c_ULTIMATE.start_main_~j~5 (- c_ULTIMATE.start_main_~j~5)) 4) (<= v_v_4_1 c_ULTIMATE.start_main_~key~5) (<= (- c_ULTIMATE.start_main_~i~5 (- c_ULTIMATE.start_main_~j~5)) 2) (<= (- c_ULTIMATE.start_main_~i~5 c_ULTIMATE.start_main_~j~5) (- 2)) (<= (- (- c_ULTIMATE.start_main_~i~5) (- c_ULTIMATE.start_main_~j~5)) 2) (or (= c_ULTIMATE.start_main_~key~5 (select c_ULTIMATE.start_main_~v~5 v_idx_58)) (< v_idx_58 1) (<= 2 v_idx_58)) (<= (- (- c_ULTIMATE.start_main_~key~5) (- v_v_4_1)) 0) (or (< v_idx_59 2) (= (select c_ULTIMATE.start_main_~v~5 v_idx_59) v_v_8_1)) (<= 2 c_ULTIMATE.start_main_~j~5) (<= c_ULTIMATE.start_main_~j~5 2) (<= 0 c_ULTIMATE.start_main_~i~5) (<= c_ULTIMATE.start_main_~i~5 0) (<= (- c_ULTIMATE.start_main_~i~5 (- c_ULTIMATE.start_main_~i~5)) 0)))))} [2019-01-07 18:37:39,057 WARN L228 ngHoareTripleChecker]: Action: assume !!(main_~j~5 % 4294967296 < main_~SIZE~5 % 4294967296);main_~key~5 := main_~v~5[main_~j~5];main_~i~5 := main_~j~5 - 1;assume !(main_~i~5 >= 0 && main_~v~5[main_~i~5] > main_~key~5);main_~v~5 := main_~v~5[main_~i~5 + 1 := main_~key~5];main_#t~post1 := main_~j~5;main_~j~5 := main_#t~post1 + 1;havoc main_#t~post1; [2019-01-07 18:37:39,057 WARN L184 hOps$ForEachOp$OfRef]: ActionStr: (and (or (not (<= 0 c_ULTIMATE.start_main_~i~5_primed)) (not (< c_ULTIMATE.start_main_~key~5_primed (select c_ULTIMATE.start_main_~v~5 c_ULTIMATE.start_main_~i~5_primed)))) (= c_ULTIMATE.start_main_~v~5_primed (store c_ULTIMATE.start_main_~v~5 (+ c_ULTIMATE.start_main_~i~5_primed 1) c_ULTIMATE.start_main_~key~5_primed)) (= (+ c_ULTIMATE.start_main_~j~5 1) c_ULTIMATE.start_main_~j~5_primed) (= c_ULTIMATE.start_main_~i~5_primed (+ c_ULTIMATE.start_main_~j~5 (- 1))) (< (mod c_ULTIMATE.start_main_~j~5 4294967296) (mod c_ULTIMATE.start_main_~SIZE~5 4294967296)) (= c_ULTIMATE.start_main_~key~5_primed (select c_ULTIMATE.start_main_~v~5 c_ULTIMATE.start_main_~j~5))) [2019-01-07 18:37:39,058 WARN L230 ngHoareTripleChecker]: Post: {2147483626#(forall ((v_idx_63 Int) (v_idx_64 Int) (v_idx_61 Int) (v_idx_62 Int)) (exists ((v_v_330_1 Int) (v_v_334_1 Int) (v_v_329_1 Int)) (and (<= (- (- c_ULTIMATE.start_main_~j~5) c_ULTIMATE.start_main_~j~5) (- 4)) (<= (+ c_ULTIMATE.start_main_~i~5 2) c_ULTIMATE.start_main_~j~5) (<= (- (- c_ULTIMATE.start_main_~i~5) c_ULTIMATE.start_main_~j~5) (- 2)) (<= (- (- c_ULTIMATE.start_main_~i~5) c_ULTIMATE.start_main_~i~5) 0) (<= (- c_ULTIMATE.start_main_~i~5 (- c_ULTIMATE.start_main_~i~5)) 4294967294) (<= (- (- c_ULTIMATE.start_main_~key~5) (- v_v_330_1)) 0) (<= (* 2 c_ULTIMATE.start_main_~i~5) 4294967294) (<= (- c_ULTIMATE.start_main_~j~5 (- c_ULTIMATE.start_main_~j~5)) 4294967298) (<= 2 (+ c_ULTIMATE.start_main_~j~5 c_ULTIMATE.start_main_~i~5)) (<= v_v_330_1 c_ULTIMATE.start_main_~key~5) (or (< (+ v_idx_63 1) c_ULTIMATE.start_main_~j~5) (= (select c_ULTIMATE.start_main_~v~5 v_idx_63) c_ULTIMATE.start_main_~key~5) (<= c_ULTIMATE.start_main_~j~5 v_idx_63)) (<= (* 2 c_ULTIMATE.start_main_~j~5) 4294967298) (<= (- c_ULTIMATE.start_main_~i~5 c_ULTIMATE.start_main_~j~5) (- 2)) (<= (- c_ULTIMATE.start_main_~i~5 (- c_ULTIMATE.start_main_~j~5)) 4294967296) (<= c_ULTIMATE.start_main_~j~5 (+ c_ULTIMATE.start_main_~i~5 2)) (or (< v_idx_62 c_ULTIMATE.start_main_~i~5) (<= c_ULTIMATE.start_main_~j~5 (+ v_idx_62 1)) (= (select c_ULTIMATE.start_main_~v~5 v_idx_62) v_v_330_1)) (<= (- (- c_ULTIMATE.start_main_~i~5) (- c_ULTIMATE.start_main_~j~5)) 2) (or (<= c_ULTIMATE.start_main_~i~5 v_idx_61) (= (select c_ULTIMATE.start_main_~v~5 v_idx_61) v_v_329_1)) (<= 4 (* 2 c_ULTIMATE.start_main_~j~5)) (or (= v_v_334_1 (select c_ULTIMATE.start_main_~v~5 v_idx_64)) (< v_idx_64 c_ULTIMATE.start_main_~j~5)) (<= 0 (* 2 c_ULTIMATE.start_main_~i~5)) (<= (+ c_ULTIMATE.start_main_~j~5 c_ULTIMATE.start_main_~i~5) 4294967296))))} [2019-01-07 18:37:39,058 WARN L263 ngHoareTripleChecker]: unsat core / model generation is disabled, enable it to get more details [2019-01-07 18:37:39,084 WARN L268 ngHoareTripleChecker]: -- [2019-01-07 18:37:39,085 WARN L269 ngHoareTripleChecker]: Simplified triple [2019-01-07 18:37:39,188 WARN L181 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 16 [2019-01-07 18:37:39,188 WARN L270 ngHoareTripleChecker]: Pre: {2147483627#(forall ((v_idx_60 Int)) (exists ((v_v_224_1 Int)) (and (<= (- ULTIMATE.start_main_~j~5 (- ULTIMATE.start_main_~j~5)) 4294967296) (= v_v_224_1 (select ULTIMATE.start_main_~v~5 v_idx_60)) (<= (- (- ULTIMATE.start_main_~j~5) ULTIMATE.start_main_~j~5) (- 2)))))} [2019-01-07 18:37:39,188 WARN L274 ngHoareTripleChecker]: Action: assume !!(main_~j~5 % 4294967296 < main_~SIZE~5 % 4294967296);main_~key~5 := main_~v~5[main_~j~5];main_~i~5 := main_~j~5 - 1;assume !(main_~i~5 >= 0 && main_~v~5[main_~i~5] > main_~key~5);main_~v~5 := main_~v~5[main_~i~5 + 1 := main_~key~5];main_#t~post1 := main_~j~5;main_~j~5 := main_#t~post1 + 1;havoc main_#t~post1; [2019-01-07 18:37:39,189 WARN L184 hOps$ForEachOp$OfRef]: ActionStr: (and (or (not (<= 0 c_ULTIMATE.start_main_~i~5_primed)) (not (< c_ULTIMATE.start_main_~key~5_primed (select c_ULTIMATE.start_main_~v~5 c_ULTIMATE.start_main_~i~5_primed)))) (= c_ULTIMATE.start_main_~v~5_primed (store c_ULTIMATE.start_main_~v~5 (+ c_ULTIMATE.start_main_~i~5_primed 1) c_ULTIMATE.start_main_~key~5_primed)) (= (+ c_ULTIMATE.start_main_~j~5 1) c_ULTIMATE.start_main_~j~5_primed) (= c_ULTIMATE.start_main_~i~5_primed (+ c_ULTIMATE.start_main_~j~5 (- 1))) (< (mod c_ULTIMATE.start_main_~j~5 4294967296) (mod c_ULTIMATE.start_main_~SIZE~5 4294967296)) (= c_ULTIMATE.start_main_~key~5_primed (select c_ULTIMATE.start_main_~v~5 c_ULTIMATE.start_main_~j~5))) [2019-01-07 18:37:39,292 WARN L276 ngHoareTripleChecker]: Post: {2147483626#(and (<= (- (- ULTIMATE.start_main_~j~5) ULTIMATE.start_main_~j~5) (- 4)) (<= (+ ULTIMATE.start_main_~i~5 2) ULTIMATE.start_main_~j~5) (<= (- (- ULTIMATE.start_main_~i~5) ULTIMATE.start_main_~j~5) (- 2)) (forall ((v_idx_62 Int)) (or (< v_idx_62 ULTIMATE.start_main_~i~5) (<= ULTIMATE.start_main_~j~5 (+ v_idx_62 1)) (<= (select ULTIMATE.start_main_~v~5 v_idx_62) ULTIMATE.start_main_~key~5))) (<= (- (- ULTIMATE.start_main_~i~5) ULTIMATE.start_main_~i~5) 0) (<= (- ULTIMATE.start_main_~i~5 (- ULTIMATE.start_main_~i~5)) 4294967294) (<= (* 2 ULTIMATE.start_main_~i~5) 4294967294) (<= (- ULTIMATE.start_main_~j~5 (- ULTIMATE.start_main_~j~5)) 4294967298) (<= 2 (+ ULTIMATE.start_main_~j~5 ULTIMATE.start_main_~i~5)) (<= (* 2 ULTIMATE.start_main_~j~5) 4294967298) (forall ((v_idx_63 Int)) (or (< (+ v_idx_63 1) ULTIMATE.start_main_~j~5) (= (select ULTIMATE.start_main_~v~5 v_idx_63) ULTIMATE.start_main_~key~5) (<= ULTIMATE.start_main_~j~5 v_idx_63))) (<= (- ULTIMATE.start_main_~i~5 ULTIMATE.start_main_~j~5) (- 2)) (<= (- ULTIMATE.start_main_~i~5 (- ULTIMATE.start_main_~j~5)) 4294967296) (<= ULTIMATE.start_main_~j~5 (+ ULTIMATE.start_main_~i~5 2)) (<= (- (- ULTIMATE.start_main_~i~5) (- ULTIMATE.start_main_~j~5)) 2) (<= 4 (* 2 ULTIMATE.start_main_~j~5)) (<= 0 (* 2 ULTIMATE.start_main_~i~5)) (<= (+ ULTIMATE.start_main_~j~5 ULTIMATE.start_main_~i~5) 4294967296))} [2019-01-07 18:37:45,860 WARN L212 ngHoareTripleChecker]: Soundness check inconclusive for the following hoare triple [2019-01-07 18:37:45,860 WARN L217 ngHoareTripleChecker]: Expected: VALID Actual: UNKNOWN [2019-01-07 18:37:45,861 WARN L219 ngHoareTripleChecker]: Solver was "Z3" in version "4.8.3" [2019-01-07 18:37:45,861 WARN L223 ngHoareTripleChecker]: -- [2019-01-07 18:37:45,862 WARN L224 ngHoareTripleChecker]: Pre: {2147483615#(or (forall ((v_idx_96 Int)) (exists ((v_v_499_1 Int)) (and (<= (- (- c_ULTIMATE.start_main_~j~5) c_ULTIMATE.start_main_~j~5) (- 2)) (= (select c_ULTIMATE.start_main_~v~5 v_idx_96) v_v_499_1)))) (forall ((v_idx_94 Int) (v_idx_95 Int) (v_idx_92 Int) (v_idx_93 Int)) (exists ((v_v_8_1 Int) (v_v_3_1 Int) (v_v_4_1 Int)) (and (<= (- (- c_ULTIMATE.start_main_~j~5) c_ULTIMATE.start_main_~j~5) (- 4)) (<= (- (- c_ULTIMATE.start_main_~i~5) c_ULTIMATE.start_main_~j~5) (- 2)) (<= (- (- c_ULTIMATE.start_main_~i~5) c_ULTIMATE.start_main_~i~5) 0) (<= (- c_ULTIMATE.start_main_~j~5 (- c_ULTIMATE.start_main_~j~5)) 4) (or (= v_v_8_1 (select c_ULTIMATE.start_main_~v~5 v_idx_95)) (< v_idx_95 2)) (or (= (select c_ULTIMATE.start_main_~v~5 v_idx_92) v_v_3_1) (<= 0 v_idx_92)) (<= v_v_4_1 c_ULTIMATE.start_main_~key~5) (<= (- c_ULTIMATE.start_main_~i~5 (- c_ULTIMATE.start_main_~j~5)) 2) (<= (- c_ULTIMATE.start_main_~i~5 c_ULTIMATE.start_main_~j~5) (- 2)) (<= (- (- c_ULTIMATE.start_main_~i~5) (- c_ULTIMATE.start_main_~j~5)) 2) (or (= v_v_4_1 (select c_ULTIMATE.start_main_~v~5 v_idx_93)) (< v_idx_93 0) (<= 1 v_idx_93)) (or (<= 2 v_idx_94) (= (select c_ULTIMATE.start_main_~v~5 v_idx_94) c_ULTIMATE.start_main_~key~5) (< v_idx_94 1)) (<= (- (- c_ULTIMATE.start_main_~key~5) (- v_v_4_1)) 0) (<= 2 c_ULTIMATE.start_main_~j~5) (<= c_ULTIMATE.start_main_~j~5 2) (<= 0 c_ULTIMATE.start_main_~i~5) (<= c_ULTIMATE.start_main_~i~5 0) (<= (- c_ULTIMATE.start_main_~i~5 (- c_ULTIMATE.start_main_~i~5)) 0)))))} [2019-01-07 18:37:45,862 WARN L228 ngHoareTripleChecker]: Action: assume !!(main_~j~5 % 4294967296 < main_~SIZE~5 % 4294967296);main_~key~5 := main_~v~5[main_~j~5];main_~i~5 := main_~j~5 - 1;assume !(main_~i~5 >= 0 && main_~v~5[main_~i~5] > main_~key~5);main_~v~5 := main_~v~5[main_~i~5 + 1 := main_~key~5];main_#t~post1 := main_~j~5;main_~j~5 := main_#t~post1 + 1;havoc main_#t~post1; [2019-01-07 18:37:45,862 WARN L184 hOps$ForEachOp$OfRef]: ActionStr: (and (or (not (<= 0 c_ULTIMATE.start_main_~i~5_primed)) (not (< c_ULTIMATE.start_main_~key~5_primed (select c_ULTIMATE.start_main_~v~5 c_ULTIMATE.start_main_~i~5_primed)))) (= c_ULTIMATE.start_main_~v~5_primed (store c_ULTIMATE.start_main_~v~5 (+ c_ULTIMATE.start_main_~i~5_primed 1) c_ULTIMATE.start_main_~key~5_primed)) (= (+ c_ULTIMATE.start_main_~j~5 1) c_ULTIMATE.start_main_~j~5_primed) (= c_ULTIMATE.start_main_~i~5_primed (+ c_ULTIMATE.start_main_~j~5 (- 1))) (< (mod c_ULTIMATE.start_main_~j~5 4294967296) (mod c_ULTIMATE.start_main_~SIZE~5 4294967296)) (= c_ULTIMATE.start_main_~key~5_primed (select c_ULTIMATE.start_main_~v~5 c_ULTIMATE.start_main_~j~5))) [2019-01-07 18:37:45,862 WARN L230 ngHoareTripleChecker]: Post: {2147483614#(forall ((v_idx_98 Int) (v_idx_99 Int) (v_idx_97 Int) (v_idx_100 Int)) (exists ((v_v_617_1 Int) (v_v_618_1 Int) (v_v_622_1 Int)) (and (<= (- (- c_ULTIMATE.start_main_~j~5) c_ULTIMATE.start_main_~j~5) (- 4)) (<= (- (- c_ULTIMATE.start_main_~i~5) c_ULTIMATE.start_main_~j~5) (- 2)) (<= (+ c_ULTIMATE.start_main_~i~5 2) c_ULTIMATE.start_main_~j~5) (<= v_v_618_1 c_ULTIMATE.start_main_~key~5) (<= (- (- c_ULTIMATE.start_main_~i~5) c_ULTIMATE.start_main_~i~5) 0) (or (= c_ULTIMATE.start_main_~key~5 (select c_ULTIMATE.start_main_~v~5 v_idx_99)) (< (+ v_idx_99 1) c_ULTIMATE.start_main_~j~5) (<= c_ULTIMATE.start_main_~j~5 v_idx_99)) (or (< v_idx_100 c_ULTIMATE.start_main_~j~5) (= (select c_ULTIMATE.start_main_~v~5 v_idx_100) v_v_622_1)) (<= 2 (+ c_ULTIMATE.start_main_~j~5 c_ULTIMATE.start_main_~i~5)) (or (<= c_ULTIMATE.start_main_~i~5 v_idx_97) (= v_v_617_1 (select c_ULTIMATE.start_main_~v~5 v_idx_97))) (or (= v_v_618_1 (select c_ULTIMATE.start_main_~v~5 v_idx_98)) (<= c_ULTIMATE.start_main_~j~5 (+ v_idx_98 1)) (< v_idx_98 c_ULTIMATE.start_main_~i~5)) (<= (- c_ULTIMATE.start_main_~i~5 c_ULTIMATE.start_main_~j~5) (- 2)) (<= c_ULTIMATE.start_main_~j~5 (+ c_ULTIMATE.start_main_~i~5 2)) (<= (- (- c_ULTIMATE.start_main_~i~5) (- c_ULTIMATE.start_main_~j~5)) 2) (<= (- (- c_ULTIMATE.start_main_~key~5) (- v_v_618_1)) 0) (<= 4 (* 2 c_ULTIMATE.start_main_~j~5)) (<= 0 (* 2 c_ULTIMATE.start_main_~i~5)))))} [2019-01-07 18:37:45,862 WARN L263 ngHoareTripleChecker]: unsat core / model generation is disabled, enable it to get more details [2019-01-07 18:37:45,882 WARN L268 ngHoareTripleChecker]: -- [2019-01-07 18:37:45,882 WARN L269 ngHoareTripleChecker]: Simplified triple [2019-01-07 18:37:45,959 WARN L270 ngHoareTripleChecker]: Pre: {2147483615#(forall ((v_idx_96 Int)) (exists ((v_v_499_1 Int)) (and (<= (- (- ULTIMATE.start_main_~j~5) ULTIMATE.start_main_~j~5) (- 2)) (= (select ULTIMATE.start_main_~v~5 v_idx_96) v_v_499_1))))} [2019-01-07 18:37:45,959 WARN L274 ngHoareTripleChecker]: Action: assume !!(main_~j~5 % 4294967296 < main_~SIZE~5 % 4294967296);main_~key~5 := main_~v~5[main_~j~5];main_~i~5 := main_~j~5 - 1;assume !(main_~i~5 >= 0 && main_~v~5[main_~i~5] > main_~key~5);main_~v~5 := main_~v~5[main_~i~5 + 1 := main_~key~5];main_#t~post1 := main_~j~5;main_~j~5 := main_#t~post1 + 1;havoc main_#t~post1; [2019-01-07 18:37:45,959 WARN L184 hOps$ForEachOp$OfRef]: ActionStr: (and (or (not (<= 0 c_ULTIMATE.start_main_~i~5_primed)) (not (< c_ULTIMATE.start_main_~key~5_primed (select c_ULTIMATE.start_main_~v~5 c_ULTIMATE.start_main_~i~5_primed)))) (= c_ULTIMATE.start_main_~v~5_primed (store c_ULTIMATE.start_main_~v~5 (+ c_ULTIMATE.start_main_~i~5_primed 1) c_ULTIMATE.start_main_~key~5_primed)) (= (+ c_ULTIMATE.start_main_~j~5 1) c_ULTIMATE.start_main_~j~5_primed) (= c_ULTIMATE.start_main_~i~5_primed (+ c_ULTIMATE.start_main_~j~5 (- 1))) (< (mod c_ULTIMATE.start_main_~j~5 4294967296) (mod c_ULTIMATE.start_main_~SIZE~5 4294967296)) (= c_ULTIMATE.start_main_~key~5_primed (select c_ULTIMATE.start_main_~v~5 c_ULTIMATE.start_main_~j~5))) [2019-01-07 18:37:45,996 WARN L276 ngHoareTripleChecker]: Post: {2147483614#(and (<= (- ULTIMATE.start_main_~i~5 ULTIMATE.start_main_~j~5) (- 2)) (<= (- (- ULTIMATE.start_main_~j~5) ULTIMATE.start_main_~j~5) (- 4)) (<= ULTIMATE.start_main_~j~5 (+ ULTIMATE.start_main_~i~5 2)) (<= (- (- ULTIMATE.start_main_~i~5) ULTIMATE.start_main_~j~5) (- 2)) (<= (+ ULTIMATE.start_main_~i~5 2) ULTIMATE.start_main_~j~5) (<= (- (- ULTIMATE.start_main_~i~5) (- ULTIMATE.start_main_~j~5)) 2) (<= (- (- ULTIMATE.start_main_~i~5) ULTIMATE.start_main_~i~5) 0) (forall ((v_idx_99 Int)) (or (= ULTIMATE.start_main_~key~5 (select ULTIMATE.start_main_~v~5 v_idx_99)) (< (+ v_idx_99 1) ULTIMATE.start_main_~j~5) (<= ULTIMATE.start_main_~j~5 v_idx_99))) (forall ((v_idx_98 Int)) (or (<= ULTIMATE.start_main_~j~5 (+ v_idx_98 1)) (<= (select ULTIMATE.start_main_~v~5 v_idx_98) ULTIMATE.start_main_~key~5) (< v_idx_98 ULTIMATE.start_main_~i~5))) (<= 4 (* 2 ULTIMATE.start_main_~j~5)) (<= 2 (+ ULTIMATE.start_main_~j~5 ULTIMATE.start_main_~i~5)) (<= 0 (* 2 ULTIMATE.start_main_~i~5)))} [2019-01-07 18:37:46,090 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2019-01-07 18:37:46,091 INFO L272 AbstractInterpreter]: Visited 4 different actions 18 times. Merged at 3 different actions 13 times. Widened at 1 different actions 3 times. Found 2 fixpoints after 2 different actions. Largest state had 0 variables. [2019-01-07 18:37:46,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-07 18:37:46,097 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-01-07 18:37:46,097 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-07 18:37:46,097 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 [2019-01-07 18:37:46,108 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-07 18:37:46,108 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2019-01-07 18:37:46,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-07 18:37:46,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-07 18:37:46,135 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-07 18:37:46,211 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 18:37:46,226 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 20 [2019-01-07 18:37:46,232 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-01-07 18:37:46,249 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-01-07 18:37:46,250 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:21, output treesize:16 [2019-01-07 18:37:46,260 WARN L384 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-01-07 18:37:46,260 WARN L385 uantifierElimination]: Input elimination task: ∃ [v_ULTIMATE.start_main_~v~5_7, ULTIMATE.start_main_~i~5, ULTIMATE.start_main_~key~5]. (and (not (< ULTIMATE.start_main_~key~5 (select v_ULTIMATE.start_main_~v~5_7 ULTIMATE.start_main_~i~5))) (<= 0 ULTIMATE.start_main_~i~5) (= (store v_ULTIMATE.start_main_~v~5_7 (+ ULTIMATE.start_main_~i~5 1) ULTIMATE.start_main_~key~5) ULTIMATE.start_main_~v~5) (<= ULTIMATE.start_main_~i~5 0)) [2019-01-07 18:37:46,261 WARN L386 uantifierElimination]: ElimStorePlain result: ∃ [ULTIMATE.start_main_~i~5]. (and (<= (select ULTIMATE.start_main_~v~5 ULTIMATE.start_main_~i~5) (select ULTIMATE.start_main_~v~5 (+ ULTIMATE.start_main_~i~5 1))) (<= 0 ULTIMATE.start_main_~i~5) (<= ULTIMATE.start_main_~i~5 0)) [2019-01-07 18:37:46,280 INFO L273 TraceCheckUtils]: 0: Hoare triple {45#true} havoc main_#res;havoc main_#t~nondet0, main_#t~post1, main_#t~post2, main_~SIZE~5, main_~i~5, main_~j~5, main_~k~5, main_~key~5, main_~v~5;main_~SIZE~5 := main_#t~nondet0;havoc main_#t~nondet0;havoc main_~i~5;havoc main_~j~5;havoc main_~k~5;havoc main_~key~5;havoc main_~v~5;main_~j~5 := 1; {47#(and (<= 1 ULTIMATE.start_main_~j~5) (<= ULTIMATE.start_main_~j~5 1))} is VALID [2019-01-07 18:37:46,282 INFO L273 TraceCheckUtils]: 1: Hoare triple {47#(and (<= 1 ULTIMATE.start_main_~j~5) (<= ULTIMATE.start_main_~j~5 1))} assume !!(main_~j~5 % 4294967296 < main_~SIZE~5 % 4294967296);main_~key~5 := main_~v~5[main_~j~5];main_~i~5 := main_~j~5 - 1;assume !(main_~i~5 >= 0 && main_~v~5[main_~i~5] > main_~key~5);main_~v~5 := main_~v~5[main_~i~5 + 1 := main_~key~5];main_#t~post1 := main_~j~5;main_~j~5 := main_#t~post1 + 1;havoc main_#t~post1; {48#(<= (select ULTIMATE.start_main_~v~5 0) (select ULTIMATE.start_main_~v~5 1))} is VALID [2019-01-07 18:37:46,284 INFO L273 TraceCheckUtils]: 2: Hoare triple {48#(<= (select ULTIMATE.start_main_~v~5 0) (select ULTIMATE.start_main_~v~5 1))} assume !(main_~j~5 % 4294967296 < main_~SIZE~5 % 4294967296);main_~k~5 := 1;assume !!(main_~k~5 % 4294967296 < main_~SIZE~5 % 4294967296);__VERIFIER_assert_#in~cond := (if main_~v~5[main_~k~5 - 1] <= main_~v~5[main_~k~5] then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond;assume __VERIFIER_assert_~cond == 0;assume !false; {46#false} is VALID [2019-01-07 18:37:46,284 INFO L273 TraceCheckUtils]: 3: Hoare triple {46#false} assume !false; {46#false} is VALID [2019-01-07 18:37:46,285 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-07 18:37:46,285 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2019-01-07 18:37:46,439 WARN L181 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 32 [2019-01-07 18:37:46,445 INFO L683 Elim1Store]: detected equality via solver [2019-01-07 18:37:46,477 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 13 [2019-01-07 18:37:46,507 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-01-07 18:37:46,509 INFO L683 Elim1Store]: detected equality via solver [2019-01-07 18:37:46,510 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 13 [2019-01-07 18:37:46,513 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-01-07 18:37:46,519 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 11 [2019-01-07 18:37:46,521 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2019-01-07 18:37:46,557 INFO L683 Elim1Store]: detected equality via solver [2019-01-07 18:37:46,562 INFO L683 Elim1Store]: detected equality via solver [2019-01-07 18:37:46,581 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 28 [2019-01-07 18:37:46,589 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 2 xjuncts. [2019-01-07 18:37:46,599 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-07 18:37:46,600 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:39, output treesize:5 [2019-01-07 18:37:46,603 WARN L384 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-01-07 18:37:46,604 WARN L385 uantifierElimination]: Input elimination task: ∀ [ULTIMATE.start_main_~v~5, v_ULTIMATE.start_main_~key~5_5, v_prenex_2, v_prenex_3]. (and (or (let ((.cse0 (store ULTIMATE.start_main_~v~5 ULTIMATE.start_main_~j~5 v_ULTIMATE.start_main_~key~5_5))) (<= (select .cse0 0) (select .cse0 1))) (< v_ULTIMATE.start_main_~key~5_5 (select ULTIMATE.start_main_~v~5 (+ ULTIMATE.start_main_~j~5 (- 1))))) (or (<= 1 ULTIMATE.start_main_~j~5) (let ((.cse1 (store v_prenex_2 ULTIMATE.start_main_~j~5 v_prenex_3))) (<= (select .cse1 0) (select .cse1 1))))) [2019-01-07 18:37:46,604 WARN L386 uantifierElimination]: ElimStorePlain result: ∀ []. (= 0 (+ ULTIMATE.start_main_~j~5 (- 1))) [2019-01-07 18:37:46,606 INFO L273 TraceCheckUtils]: 3: Hoare triple {46#false} assume !false; {46#false} is VALID [2019-01-07 18:37:46,607 INFO L273 TraceCheckUtils]: 2: Hoare triple {48#(<= (select ULTIMATE.start_main_~v~5 0) (select ULTIMATE.start_main_~v~5 1))} assume !(main_~j~5 % 4294967296 < main_~SIZE~5 % 4294967296);main_~k~5 := 1;assume !!(main_~k~5 % 4294967296 < main_~SIZE~5 % 4294967296);__VERIFIER_assert_#in~cond := (if main_~v~5[main_~k~5 - 1] <= main_~v~5[main_~k~5] then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond;assume __VERIFIER_assert_~cond == 0;assume !false; {46#false} is VALID [2019-01-07 18:37:46,609 INFO L273 TraceCheckUtils]: 1: Hoare triple {47#(and (<= 1 ULTIMATE.start_main_~j~5) (<= ULTIMATE.start_main_~j~5 1))} assume !!(main_~j~5 % 4294967296 < main_~SIZE~5 % 4294967296);main_~key~5 := main_~v~5[main_~j~5];main_~i~5 := main_~j~5 - 1;assume !(main_~i~5 >= 0 && main_~v~5[main_~i~5] > main_~key~5);main_~v~5 := main_~v~5[main_~i~5 + 1 := main_~key~5];main_#t~post1 := main_~j~5;main_~j~5 := main_#t~post1 + 1;havoc main_#t~post1; {48#(<= (select ULTIMATE.start_main_~v~5 0) (select ULTIMATE.start_main_~v~5 1))} is VALID [2019-01-07 18:37:46,610 INFO L273 TraceCheckUtils]: 0: Hoare triple {45#true} havoc main_#res;havoc main_#t~nondet0, main_#t~post1, main_#t~post2, main_~SIZE~5, main_~i~5, main_~j~5, main_~k~5, main_~key~5, main_~v~5;main_~SIZE~5 := main_#t~nondet0;havoc main_#t~nondet0;havoc main_~i~5;havoc main_~j~5;havoc main_~k~5;havoc main_~key~5;havoc main_~v~5;main_~j~5 := 1; {47#(and (<= 1 ULTIMATE.start_main_~j~5) (<= ULTIMATE.start_main_~j~5 1))} is VALID [2019-01-07 18:37:46,611 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-07 18:37:46,634 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-01-07 18:37:46,635 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 3 [2019-01-07 18:37:46,635 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-01-07 18:37:46,635 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 4 [2019-01-07 18:37:46,636 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-01-07 18:37:46,636 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states. [2019-01-07 18:37:46,645 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 4 edges. 4 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-01-07 18:37:46,645 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-01-07 18:37:46,646 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-01-07 18:37:46,646 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-01-07 18:37:46,647 INFO L87 Difference]: Start difference. First operand 5 states and 5 transitions. Second operand 4 states. [2019-01-07 18:37:46,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-07 18:37:46,712 INFO L93 Difference]: Finished difference Result 5 states and 5 transitions. [2019-01-07 18:37:46,712 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-01-07 18:37:46,713 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 4 [2019-01-07 18:37:46,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-07 18:37:46,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2019-01-07 18:37:46,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 5 transitions. [2019-01-07 18:37:46,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2019-01-07 18:37:46,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 5 transitions. [2019-01-07 18:37:46,715 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states and 5 transitions. [2019-01-07 18:37:46,728 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 5 edges. 5 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-01-07 18:37:46,728 INFO L225 Difference]: With dead ends: 5 [2019-01-07 18:37:46,728 INFO L226 Difference]: Without dead ends: 0 [2019-01-07 18:37:46,730 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 3 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-01-07 18:37:46,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-01-07 18:37:46,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-01-07 18:37:46,731 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-01-07 18:37:46,731 INFO L82 GeneralOperation]: Start isEquivalent. First operand 0 states. Second operand 0 states. [2019-01-07 18:37:46,731 INFO L74 IsIncluded]: Start isIncluded. First operand 0 states. Second operand 0 states. [2019-01-07 18:37:46,731 INFO L87 Difference]: Start difference. First operand 0 states. Second operand 0 states. [2019-01-07 18:37:46,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-07 18:37:46,731 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2019-01-07 18:37:46,732 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-01-07 18:37:46,732 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-07 18:37:46,732 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-01-07 18:37:46,732 INFO L74 IsIncluded]: Start isIncluded. First operand 0 states. Second operand 0 states. [2019-01-07 18:37:46,732 INFO L87 Difference]: Start difference. First operand 0 states. Second operand 0 states. [2019-01-07 18:37:46,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-07 18:37:46,732 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2019-01-07 18:37:46,732 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-01-07 18:37:46,732 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-07 18:37:46,733 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-01-07 18:37:46,733 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-01-07 18:37:46,733 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-01-07 18:37:46,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-01-07 18:37:46,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-01-07 18:37:46,734 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 4 [2019-01-07 18:37:46,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-07 18:37:46,734 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-01-07 18:37:46,734 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-01-07 18:37:46,734 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-01-07 18:37:46,734 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-07 18:37:46,739 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-01-07 18:37:46,799 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(lines 1 56) no Hoare annotation was computed. [2019-01-07 18:37:46,799 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(lines 1 56) no Hoare annotation was computed. [2019-01-07 18:37:46,799 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONASSERT(line 55) no Hoare annotation was computed. [2019-01-07 18:37:46,800 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(lines 1 56) no Hoare annotation was computed. [2019-01-07 18:37:46,800 INFO L444 ceAbstractionStarter]: At program point L42(lines 42 54) the Hoare annotation is: false [2019-01-07 18:37:46,800 INFO L444 ceAbstractionStarter]: At program point L53(lines 26 53) the Hoare annotation is: (or (<= (select ULTIMATE.start_main_~v~5 0) (select ULTIMATE.start_main_~v~5 1)) (and (<= 1 ULTIMATE.start_main_~j~5) (<= ULTIMATE.start_main_~j~5 1))) [2019-01-07 18:37:46,801 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2019-01-07 18:37:46,806 WARN L170 areAnnotationChecker]: ULTIMATE.startErr0ASSERT_VIOLATIONASSERT has no Hoare annotation [2019-01-07 18:37:46,806 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2019-01-07 18:37:46,806 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2019-01-07 18:37:46,807 INFO L163 areAnnotationChecker]: CFG has 2 edges. 2 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. 0 times interpolants missing. [2019-01-07 18:37:46,812 INFO L202 PluginConnector]: Adding new model insertion_sort.i_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.01 06:37:46 BoogieIcfgContainer [2019-01-07 18:37:46,813 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-01-07 18:37:46,814 INFO L168 Benchmark]: Toolchain (without parser) took 37639.92 ms. Allocated memory was 1.5 GB in the beginning and 2.5 GB in the end (delta: 994.1 MB). Free memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: -829.6 MB). Peak memory consumption was 164.4 MB. Max. memory is 7.1 GB. [2019-01-07 18:37:46,815 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2019-01-07 18:37:46,815 INFO L168 Benchmark]: Boogie Procedure Inliner took 46.58 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2019-01-07 18:37:46,816 INFO L168 Benchmark]: Boogie Preprocessor took 26.94 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2019-01-07 18:37:46,816 INFO L168 Benchmark]: RCFGBuilder took 381.60 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.4 GB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. [2019-01-07 18:37:46,817 INFO L168 Benchmark]: TraceAbstraction took 37179.39 ms. Allocated memory was 1.5 GB in the beginning and 2.5 GB in the end (delta: 994.1 MB). Free memory was 1.4 GB in the beginning and 2.3 GB in the end (delta: -850.8 MB). Peak memory consumption was 143.3 MB. Max. memory is 7.1 GB. [2019-01-07 18:37:46,821 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - GenericResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 46.58 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Preprocessor took 26.94 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 381.60 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.4 GB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 37179.39 ms. Allocated memory was 1.5 GB in the beginning and 2.5 GB in the end (delta: 994.1 MB). Free memory was 1.4 GB in the beginning and 2.3 GB in the end (delta: -850.8 MB). Peak memory consumption was 143.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 55]: assertion always holds For all program executions holds that assertion always holds at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 42]: Loop Invariant Derived loop invariant: false - InvariantResult [Line: 26]: Loop Invariant Derived loop invariant: main_~v~5[0] <= main_~v~5[1] || (1 <= main_~j~5 && main_~j~5 <= 1) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 6 locations, 1 error locations. SAFE Result, 37.0s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 4 SDtfs, 0 SDslu, 1 SDs, 0 SdLazy, 8 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 3 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=6occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 35.1s AbstIntTime, 1 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 3 NumberOfFragments, 16 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 11 NumberOfCodeBlocks, 11 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 11 ConstructedInterpolants, 0 QuantifiedInterpolants, 151 SizeOfPredicates, 7 NumberOfNonLiveVariables, 26 ConjunctsInSsa, 14 ConjunctsInUnsatCore, 4 InterpolantComputations, 1 PerfectInterpolantSequences, 0/3 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...