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_compound_exp_cong.epf -i ../../../trunk/examples/programs/real-life/divisibilityWithArray.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fa1c628-m [2019-01-31 14:30:58,663 INFO L170 SettingsManager]: Resetting all preferences to default values... [2019-01-31 14:30:58,665 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2019-01-31 14:30:58,683 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2019-01-31 14:30:58,745 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/array-bench/reach_32bit_compound_exp_cong.epf [2019-01-31 14:30:58,766 INFO L110 SettingsManager]: Loading preferences was successful [2019-01-31 14:30:58,766 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2019-01-31 14:30:58,774 INFO L131 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2019-01-31 14:30:58,774 INFO L133 SettingsManager]: * Show backtranslation warnings=false [2019-01-31 14:30:58,775 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-01-31 14:30:58,775 INFO L133 SettingsManager]: * User list type=DISABLED [2019-01-31 14:30:58,775 INFO L133 SettingsManager]: * Inline calls to unimplemented procedures=true [2019-01-31 14:30:58,775 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-01-31 14:30:58,775 INFO L133 SettingsManager]: * Explicit value domain=true [2019-01-31 14:30:58,776 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-01-31 14:30:58,776 INFO L133 SettingsManager]: * Octagon Domain=false [2019-01-31 14:30:58,776 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2019-01-31 14:30:58,776 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-01-31 14:30:58,776 INFO L133 SettingsManager]: * Interval Domain=false [2019-01-31 14:30:58,782 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-01-31 14:30:58,783 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2019-01-31 14:30:58,783 INFO L133 SettingsManager]: * Use SBE=true [2019-01-31 14:30:58,783 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-01-31 14:30:58,783 INFO L133 SettingsManager]: * sizeof long=4 [2019-01-31 14:30:58,783 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2019-01-31 14:30:58,784 INFO L133 SettingsManager]: * sizeof POINTER=4 [2019-01-31 14:30:58,784 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2019-01-31 14:30:58,784 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-01-31 14:30:58,784 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-01-31 14:30:58,784 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-01-31 14:30:58,784 INFO L133 SettingsManager]: * sizeof long double=12 [2019-01-31 14:30:58,788 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2019-01-31 14:30:58,788 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-01-31 14:30:58,788 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-01-31 14:30:58,789 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-01-31 14:30:58,789 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2019-01-31 14:30:58,789 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:8092 -smt2 -in -t:10000 [2019-01-31 14:30:58,789 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-01-31 14:30:58,789 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-01-31 14:30:58,790 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-01-31 14:30:58,790 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-01-31 14:30:58,790 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-01-31 14:30:58,790 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:8092 -smt2 -in [2019-01-31 14:30:58,790 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-01-31 14:30:58,790 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-01-31 14:30:58,820 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-01-31 14:30:58,831 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-01-31 14:30:58,834 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-01-31 14:30:58,835 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2019-01-31 14:30:58,836 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2019-01-31 14:30:58,836 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/real-life/divisibilityWithArray.bpl [2019-01-31 14:30:58,837 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/real-life/divisibilityWithArray.bpl' [2019-01-31 14:30:58,872 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-01-31 14:30:58,874 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-01-31 14:30:58,875 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-01-31 14:30:58,875 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-01-31 14:30:58,875 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2019-01-31 14:30:58,893 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "divisibilityWithArray.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 31.01 02:30:58" (1/1) ... [2019-01-31 14:30:58,904 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "divisibilityWithArray.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 31.01 02:30:58" (1/1) ... [2019-01-31 14:30:58,910 WARN L165 Inliner]: Program contained no entry procedure! [2019-01-31 14:30:58,910 WARN L168 Inliner]: Missing entry procedures: [ULTIMATE.start] [2019-01-31 14:30:58,910 WARN L175 Inliner]: Fallback enabled. All procedures will be processed. [2019-01-31 14:30:58,913 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-01-31 14:30:58,914 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-01-31 14:30:58,914 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-01-31 14:30:58,915 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2019-01-31 14:30:58,926 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "divisibilityWithArray.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 31.01 02:30:58" (1/1) ... [2019-01-31 14:30:58,926 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "divisibilityWithArray.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 31.01 02:30:58" (1/1) ... [2019-01-31 14:30:58,927 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "divisibilityWithArray.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 31.01 02:30:58" (1/1) ... [2019-01-31 14:30:58,927 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "divisibilityWithArray.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 31.01 02:30:58" (1/1) ... [2019-01-31 14:30:58,932 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "divisibilityWithArray.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 31.01 02:30:58" (1/1) ... [2019-01-31 14:30:58,937 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "divisibilityWithArray.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 31.01 02:30:58" (1/1) ... [2019-01-31 14:30:58,938 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "divisibilityWithArray.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 31.01 02:30:58" (1/1) ... [2019-01-31 14:30:58,939 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-01-31 14:30:58,940 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-01-31 14:30:58,940 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-01-31 14:30:58,940 INFO L276 PluginConnector]: RCFGBuilder initialized [2019-01-31 14:30:58,945 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "divisibilityWithArray.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 31.01 02:30:58" (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 14:30:59,017 INFO L124 BoogieDeclarations]: Specification and implementation of procedure main given in one single declaration [2019-01-31 14:30:59,018 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-01-31 14:30:59,018 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-01-31 14:30:59,215 INFO L278 CfgBuilder]: Using library mode [2019-01-31 14:30:59,215 INFO L286 CfgBuilder]: Removed 0 assue(true) statements. [2019-01-31 14:30:59,216 INFO L202 PluginConnector]: Adding new model divisibilityWithArray.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 02:30:59 BoogieIcfgContainer [2019-01-31 14:30:59,217 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-01-31 14:30:59,217 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-01-31 14:30:59,218 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-01-31 14:30:59,221 INFO L276 PluginConnector]: TraceAbstraction initialized [2019-01-31 14:30:59,221 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "divisibilityWithArray.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 31.01 02:30:58" (1/2) ... [2019-01-31 14:30:59,222 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@396688b and model type divisibilityWithArray.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.01 02:30:59, skipping insertion in model container [2019-01-31 14:30:59,222 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "divisibilityWithArray.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 02:30:59" (2/2) ... [2019-01-31 14:30:59,224 INFO L112 eAbstractionObserver]: Analyzing ICFG divisibilityWithArray.bpl [2019-01-31 14:30:59,234 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-01-31 14:30:59,242 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-01-31 14:30:59,257 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-01-31 14:30:59,288 INFO L382 AbstractCegarLoop]: Interprodecural is true [2019-01-31 14:30:59,288 INFO L383 AbstractCegarLoop]: Hoare is true [2019-01-31 14:30:59,288 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-01-31 14:30:59,289 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-01-31 14:30:59,289 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-01-31 14:30:59,289 INFO L387 AbstractCegarLoop]: Difference is false [2019-01-31 14:30:59,289 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-01-31 14:30:59,289 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-01-31 14:30:59,304 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states. [2019-01-31 14:30:59,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-01-31 14:30:59,310 INFO L394 BasicCegarLoop]: Found error trace [2019-01-31 14:30:59,311 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1] [2019-01-31 14:30:59,314 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-01-31 14:30:59,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-31 14:30:59,320 INFO L82 PathProgramCache]: Analyzing trace with hash 29920, now seen corresponding path program 1 times [2019-01-31 14:30:59,321 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-01-31 14:30:59,364 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-31 14:30:59,364 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-31 14:30:59,365 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-31 14:30:59,365 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-01-31 14:30:59,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-31 14:30:59,928 WARN L181 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 31 DAG size of output: 19 [2019-01-31 14:31:00,114 INFO L273 TraceCheckUtils]: 0: Hoare triple {9#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {11#(and (or (< 0 main_n) (and (<= (* 4 main_n) main_i) (< main_i (+ (* 4 main_n) 1)) (= 23 (select main_a main_i)))) (<= main_i 0))} is VALID [2019-01-31 14:31:00,119 INFO L273 TraceCheckUtils]: 1: Hoare triple {11#(and (or (< 0 main_n) (and (<= (* 4 main_n) main_i) (< main_i (+ (* 4 main_n) 1)) (= 23 (select main_a main_i)))) (<= main_i 0))} assume a[i] != 23;i := i + 4; {12#(and (< 0 main_n) (<= main_i 4))} is VALID [2019-01-31 14:31:00,129 INFO L273 TraceCheckUtils]: 2: Hoare triple {12#(and (< 0 main_n) (<= main_i 4))} assume !(i <= n * 4); {10#false} is VALID [2019-01-31 14:31:00,131 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 14:31:00,134 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-31 14:31:00,134 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-01-31 14:31:00,134 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-01-31 14:31:00,140 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 3 [2019-01-31 14:31:00,142 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-01-31 14:31:00,146 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states. [2019-01-31 14:31:00,194 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 3 edges. 3 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-01-31 14:31:00,195 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-01-31 14:31:00,204 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-01-31 14:31:00,205 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-01-31 14:31:00,208 INFO L87 Difference]: Start difference. First operand 6 states. Second operand 4 states. [2019-01-31 14:31:00,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 14:31:00,543 INFO L93 Difference]: Finished difference Result 14 states and 14 transitions. [2019-01-31 14:31:00,543 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-01-31 14:31:00,543 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 3 [2019-01-31 14:31:00,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-31 14:31:00,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2019-01-31 14:31:00,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 14 transitions. [2019-01-31 14:31:00,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2019-01-31 14:31:00,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 14 transitions. [2019-01-31 14:31:00,553 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states and 14 transitions. [2019-01-31 14:31:00,603 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 14:31:00,613 INFO L225 Difference]: With dead ends: 14 [2019-01-31 14:31:00,614 INFO L226 Difference]: Without dead ends: 7 [2019-01-31 14:31:00,617 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-01-31 14:31:00,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states. [2019-01-31 14:31:00,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 6. [2019-01-31 14:31:00,666 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-01-31 14:31:00,667 INFO L82 GeneralOperation]: Start isEquivalent. First operand 7 states. Second operand 6 states. [2019-01-31 14:31:00,667 INFO L74 IsIncluded]: Start isIncluded. First operand 7 states. Second operand 6 states. [2019-01-31 14:31:00,667 INFO L87 Difference]: Start difference. First operand 7 states. Second operand 6 states. [2019-01-31 14:31:00,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 14:31:00,669 INFO L93 Difference]: Finished difference Result 7 states and 7 transitions. [2019-01-31 14:31:00,670 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 7 transitions. [2019-01-31 14:31:00,670 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-31 14:31:00,670 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-01-31 14:31:00,671 INFO L74 IsIncluded]: Start isIncluded. First operand 6 states. Second operand 7 states. [2019-01-31 14:31:00,671 INFO L87 Difference]: Start difference. First operand 6 states. Second operand 7 states. [2019-01-31 14:31:00,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 14:31:00,672 INFO L93 Difference]: Finished difference Result 7 states and 7 transitions. [2019-01-31 14:31:00,673 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 7 transitions. [2019-01-31 14:31:00,673 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-31 14:31:00,673 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-01-31 14:31:00,674 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-01-31 14:31:00,674 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-01-31 14:31:00,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2019-01-31 14:31:00,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 6 transitions. [2019-01-31 14:31:00,677 INFO L78 Accepts]: Start accepts. Automaton has 6 states and 6 transitions. Word has length 3 [2019-01-31 14:31:00,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-31 14:31:00,677 INFO L480 AbstractCegarLoop]: Abstraction has 6 states and 6 transitions. [2019-01-31 14:31:00,677 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-01-31 14:31:00,679 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states and 6 transitions. [2019-01-31 14:31:00,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-01-31 14:31:00,680 INFO L394 BasicCegarLoop]: Found error trace [2019-01-31 14:31:00,680 INFO L402 BasicCegarLoop]: trace histogram [2, 1, 1, 1] [2019-01-31 14:31:00,680 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-01-31 14:31:00,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-31 14:31:00,681 INFO L82 PathProgramCache]: Analyzing trace with hash 28754210, now seen corresponding path program 1 times [2019-01-31 14:31:00,681 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-01-31 14:31:00,683 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-31 14:31:00,683 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-31 14:31:00,683 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-31 14:31:00,684 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-01-31 14:31:00,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-31 14:31:00,891 WARN L181 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 17 [2019-01-31 14:31:01,131 WARN L181 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 23 DAG size of output: 21 [2019-01-31 14:31:01,456 WARN L181 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 28 DAG size of output: 17 [2019-01-31 14:31:01,590 INFO L273 TraceCheckUtils]: 0: Hoare triple {54#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {56#(and (or (<= main_n 1) (<= main_i 0)) (or (<= 0 main_i) (< 1 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:01,591 INFO L273 TraceCheckUtils]: 1: Hoare triple {56#(and (or (<= main_n 1) (<= main_i 0)) (or (<= 0 main_i) (< 1 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {57#(and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (or (= (* 4 main_n) main_i) (and (or (<= (* 4 main_n) main_i) (< 1 main_n)) (or (<= main_n 1) (<= main_i 4)))))} is VALID [2019-01-31 14:31:01,593 INFO L273 TraceCheckUtils]: 2: Hoare triple {57#(and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (or (= (* 4 main_n) main_i) (and (or (<= (* 4 main_n) main_i) (< 1 main_n)) (or (<= main_n 1) (<= main_i 4)))))} assume i <= n * 4; {58#(and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (or (= (* 4 main_n) main_i) (and (<= main_i 4) (< 1 main_n))))} is VALID [2019-01-31 14:31:01,595 INFO L273 TraceCheckUtils]: 3: Hoare triple {58#(and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (or (= (* 4 main_n) main_i) (and (<= main_i 4) (< 1 main_n))))} assume a[i] != 23;i := i + 4; {59#(and (<= main_i 8) (< 1 main_n))} is VALID [2019-01-31 14:31:01,596 INFO L273 TraceCheckUtils]: 4: Hoare triple {59#(and (<= main_i 8) (< 1 main_n))} assume !(i <= n * 4); {55#false} is VALID [2019-01-31 14:31:01,598 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 14:31:01,598 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-31 14:31:01,598 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-01-31 14:31:01,599 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 6 with the following transitions: [2019-01-31 14:31:01,601 INFO L207 CegarAbsIntRunner]: [0], [4], [5], [6] [2019-01-31 14:31:01,634 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2019-01-31 14:31:01,634 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2019-01-31 14:31:01,912 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2019-01-31 14:31:01,913 INFO L272 AbstractInterpreter]: Visited 4 different actions 11 times. Merged at 3 different actions 7 times. Never widened. Performed 46 root evaluator evaluations with a maximum evaluation depth of 3. Performed 46 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 1 fixpoints after 1 different actions. Largest state had 0 variables. [2019-01-31 14:31:01,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-31 14:31:01,920 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-01-31 14:31:01,920 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-31 14:31:01,921 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 14:31:01,939 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-31 14:31:01,939 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2019-01-31 14:31:01,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-31 14:31:01,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-31 14:31:01,976 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-31 14:31:02,059 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 14:31:02,065 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-01-31 14:31:02,072 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-31 14:31:02,073 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2019-01-31 14:31:02,077 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-01-31 14:31:02,077 WARN L398 uantifierElimination]: Input elimination task: ∃ [v_main_a_5]. (and (= (store v_main_a_5 (* 4 main_n) 23) main_a) (= main_i 0)) [2019-01-31 14:31:02,077 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2019-01-31 14:31:02,337 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2019-01-31 14:31:02,352 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-01-31 14:31:02,384 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-31 14:31:02,384 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2019-01-31 14:31:02,396 INFO L273 TraceCheckUtils]: 0: Hoare triple {54#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {63#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:02,397 INFO L273 TraceCheckUtils]: 1: Hoare triple {63#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {67#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2019-01-31 14:31:02,402 INFO L273 TraceCheckUtils]: 2: Hoare triple {67#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume i <= n * 4; {71#(and (<= main_i (* 4 main_n)) (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2019-01-31 14:31:02,404 INFO L273 TraceCheckUtils]: 3: Hoare triple {71#(and (<= main_i (* 4 main_n)) (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume a[i] != 23;i := i + 4; {59#(and (<= main_i 8) (< 1 main_n))} is VALID [2019-01-31 14:31:02,409 INFO L273 TraceCheckUtils]: 4: Hoare triple {59#(and (<= main_i 8) (< 1 main_n))} assume !(i <= n * 4); {55#false} is VALID [2019-01-31 14:31:02,409 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 14:31:02,410 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2019-01-31 14:31:02,679 INFO L273 TraceCheckUtils]: 4: Hoare triple {78#(<= main_i (* 4 main_n))} assume !(i <= n * 4); {55#false} is VALID [2019-01-31 14:31:02,680 INFO L273 TraceCheckUtils]: 3: Hoare triple {82#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} assume a[i] != 23;i := i + 4; {78#(<= main_i (* 4 main_n))} is VALID [2019-01-31 14:31:02,681 INFO L273 TraceCheckUtils]: 2: Hoare triple {86#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} assume i <= n * 4; {82#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} is VALID [2019-01-31 14:31:02,682 INFO L273 TraceCheckUtils]: 1: Hoare triple {90#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume a[i] != 23;i := i + 4; {86#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} is VALID [2019-01-31 14:31:02,684 INFO L273 TraceCheckUtils]: 0: Hoare triple {54#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {90#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2019-01-31 14:31:02,684 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 14:31:02,706 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-01-31 14:31:02,706 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 11 [2019-01-31 14:31:02,706 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-01-31 14:31:02,707 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 5 [2019-01-31 14:31:02,708 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-01-31 14:31:02,708 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 9 states. [2019-01-31 14:31:02,733 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 9 edges. 9 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-01-31 14:31:02,733 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-01-31 14:31:02,734 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-01-31 14:31:02,734 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156 [2019-01-31 14:31:02,735 INFO L87 Difference]: Start difference. First operand 6 states and 6 transitions. Second operand 9 states. [2019-01-31 14:31:02,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 14:31:02,896 INFO L93 Difference]: Finished difference Result 10 states and 10 transitions. [2019-01-31 14:31:02,896 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-01-31 14:31:02,896 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 5 [2019-01-31 14:31:02,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-31 14:31:02,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2019-01-31 14:31:02,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 10 transitions. [2019-01-31 14:31:02,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2019-01-31 14:31:02,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 10 transitions. [2019-01-31 14:31:02,899 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 6 states and 10 transitions. [2019-01-31 14:31:02,920 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 10 edges. 10 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-01-31 14:31:02,921 INFO L225 Difference]: With dead ends: 10 [2019-01-31 14:31:02,921 INFO L226 Difference]: Without dead ends: 9 [2019-01-31 14:31:02,923 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156 [2019-01-31 14:31:02,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2019-01-31 14:31:02,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 8. [2019-01-31 14:31:02,945 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-01-31 14:31:02,945 INFO L82 GeneralOperation]: Start isEquivalent. First operand 9 states. Second operand 8 states. [2019-01-31 14:31:02,946 INFO L74 IsIncluded]: Start isIncluded. First operand 9 states. Second operand 8 states. [2019-01-31 14:31:02,946 INFO L87 Difference]: Start difference. First operand 9 states. Second operand 8 states. [2019-01-31 14:31:02,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 14:31:02,947 INFO L93 Difference]: Finished difference Result 9 states and 9 transitions. [2019-01-31 14:31:02,947 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2019-01-31 14:31:02,948 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-31 14:31:02,948 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-01-31 14:31:02,948 INFO L74 IsIncluded]: Start isIncluded. First operand 8 states. Second operand 9 states. [2019-01-31 14:31:02,948 INFO L87 Difference]: Start difference. First operand 8 states. Second operand 9 states. [2019-01-31 14:31:02,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 14:31:02,949 INFO L93 Difference]: Finished difference Result 9 states and 9 transitions. [2019-01-31 14:31:02,949 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2019-01-31 14:31:02,950 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-31 14:31:02,950 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-01-31 14:31:02,950 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-01-31 14:31:02,950 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-01-31 14:31:02,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2019-01-31 14:31:02,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions. [2019-01-31 14:31:02,951 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 8 transitions. Word has length 5 [2019-01-31 14:31:02,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-31 14:31:02,952 INFO L480 AbstractCegarLoop]: Abstraction has 8 states and 8 transitions. [2019-01-31 14:31:02,952 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-01-31 14:31:02,952 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions. [2019-01-31 14:31:02,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-01-31 14:31:02,952 INFO L394 BasicCegarLoop]: Found error trace [2019-01-31 14:31:02,953 INFO L402 BasicCegarLoop]: trace histogram [3, 2, 1, 1] [2019-01-31 14:31:02,953 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-01-31 14:31:02,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-31 14:31:02,953 INFO L82 PathProgramCache]: Analyzing trace with hash 1862993124, now seen corresponding path program 2 times [2019-01-31 14:31:02,953 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-01-31 14:31:02,954 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-31 14:31:02,955 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-31 14:31:02,955 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-31 14:31:02,955 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-01-31 14:31:02,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-31 14:31:03,314 INFO L273 TraceCheckUtils]: 0: Hoare triple {136#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {138#(and (or (<= main_n 2) (<= main_i 0)) (or (and (<= 0 main_i) (= 23 (select main_a (* 4 main_n)))) (< 2 main_n)))} is VALID [2019-01-31 14:31:03,316 INFO L273 TraceCheckUtils]: 1: Hoare triple {138#(and (or (<= main_n 2) (<= main_i 0)) (or (and (<= 0 main_i) (= 23 (select main_a (* 4 main_n)))) (< 2 main_n)))} assume a[i] != 23;i := i + 4; {139#(and (or (<= main_n 2) (<= main_i 4)) (or (< 2 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i))))} is VALID [2019-01-31 14:31:03,317 INFO L273 TraceCheckUtils]: 2: Hoare triple {139#(and (or (<= main_n 2) (<= main_i 4)) (or (< 2 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i))))} assume i <= n * 4; {139#(and (or (<= main_n 2) (<= main_i 4)) (or (< 2 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i))))} is VALID [2019-01-31 14:31:03,320 INFO L273 TraceCheckUtils]: 3: Hoare triple {139#(and (or (<= main_n 2) (<= main_i 4)) (or (< 2 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i))))} assume a[i] != 23;i := i + 4; {140#(and (or (<= main_i 8) (<= main_n 2)) (or (and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (<= (* 4 main_n) main_i)) (< 2 main_n)))} is VALID [2019-01-31 14:31:03,321 INFO L273 TraceCheckUtils]: 4: Hoare triple {140#(and (or (<= main_i 8) (<= main_n 2)) (or (and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (<= (* 4 main_n) main_i)) (< 2 main_n)))} assume i <= n * 4; {141#(and (or (< 2 main_n) (and (<= (* 4 main_n) main_i) (<= main_i (* 4 main_n)) (= 23 (select main_a main_i)))) (<= main_i 8))} is VALID [2019-01-31 14:31:03,322 INFO L273 TraceCheckUtils]: 5: Hoare triple {141#(and (or (< 2 main_n) (and (<= (* 4 main_n) main_i) (<= main_i (* 4 main_n)) (= 23 (select main_a main_i)))) (<= main_i 8))} assume a[i] != 23;i := i + 4; {142#(and (< 2 main_n) (<= main_i 12))} is VALID [2019-01-31 14:31:03,322 INFO L273 TraceCheckUtils]: 6: Hoare triple {142#(and (< 2 main_n) (<= main_i 12))} assume !(i <= n * 4); {137#false} is VALID [2019-01-31 14:31:03,323 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 14:31:03,323 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-31 14:31:03,323 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-01-31 14:31:03,324 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-01-31 14:31:03,324 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-01-31 14:31:03,324 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-31 14:31:03,324 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 14:31:03,333 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2019-01-31 14:31:03,333 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST2 (IT: FPandBP) [2019-01-31 14:31:03,339 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2019-01-31 14:31:03,340 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-01-31 14:31:03,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-31 14:31:03,344 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-31 14:31:03,355 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 14:31:03,357 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-01-31 14:31:03,367 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-31 14:31:03,367 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2019-01-31 14:31:03,370 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-01-31 14:31:03,370 WARN L398 uantifierElimination]: Input elimination task: ∃ [v_main_a_6]. (and (= (store v_main_a_6 (* 4 main_n) 23) main_a) (= main_i 0)) [2019-01-31 14:31:03,370 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2019-01-31 14:31:03,497 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2019-01-31 14:31:03,509 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-01-31 14:31:03,514 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-31 14:31:03,514 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2019-01-31 14:31:03,532 INFO L273 TraceCheckUtils]: 0: Hoare triple {136#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {146#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:03,533 INFO L273 TraceCheckUtils]: 1: Hoare triple {146#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {150#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2019-01-31 14:31:03,534 INFO L273 TraceCheckUtils]: 2: Hoare triple {150#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume i <= n * 4; {150#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2019-01-31 14:31:03,535 INFO L273 TraceCheckUtils]: 3: Hoare triple {150#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume a[i] != 23;i := i + 4; {157#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:03,537 INFO L273 TraceCheckUtils]: 4: Hoare triple {157#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {161#(and (= main_i 8) (<= main_i (* 4 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:03,538 INFO L273 TraceCheckUtils]: 5: Hoare triple {161#(and (= main_i 8) (<= main_i (* 4 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {142#(and (< 2 main_n) (<= main_i 12))} is VALID [2019-01-31 14:31:03,538 INFO L273 TraceCheckUtils]: 6: Hoare triple {142#(and (< 2 main_n) (<= main_i 12))} assume !(i <= n * 4); {137#false} is VALID [2019-01-31 14:31:03,539 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 14:31:03,539 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2019-01-31 14:31:03,801 INFO L273 TraceCheckUtils]: 6: Hoare triple {168#(<= main_i (* 4 main_n))} assume !(i <= n * 4); {137#false} is VALID [2019-01-31 14:31:03,806 INFO L273 TraceCheckUtils]: 5: Hoare triple {172#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} assume a[i] != 23;i := i + 4; {168#(<= main_i (* 4 main_n))} is VALID [2019-01-31 14:31:03,806 INFO L273 TraceCheckUtils]: 4: Hoare triple {176#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} assume i <= n * 4; {172#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} is VALID [2019-01-31 14:31:03,808 INFO L273 TraceCheckUtils]: 3: Hoare triple {180#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume a[i] != 23;i := i + 4; {176#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} is VALID [2019-01-31 14:31:03,813 INFO L273 TraceCheckUtils]: 2: Hoare triple {180#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume i <= n * 4; {180#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2019-01-31 14:31:03,814 INFO L273 TraceCheckUtils]: 1: Hoare triple {187#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume a[i] != 23;i := i + 4; {180#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2019-01-31 14:31:03,815 INFO L273 TraceCheckUtils]: 0: Hoare triple {136#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {187#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2019-01-31 14:31:03,816 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 14:31:03,835 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-01-31 14:31:03,836 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 14 [2019-01-31 14:31:03,836 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-01-31 14:31:03,836 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 7 [2019-01-31 14:31:03,836 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-01-31 14:31:03,836 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 11 states. [2019-01-31 14:31:03,867 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 13 edges. 13 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-01-31 14:31:03,867 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-01-31 14:31:03,868 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-01-31 14:31:03,868 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=182, Unknown=0, NotChecked=0, Total=240 [2019-01-31 14:31:03,869 INFO L87 Difference]: Start difference. First operand 8 states and 8 transitions. Second operand 11 states. [2019-01-31 14:31:04,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 14:31:04,149 INFO L93 Difference]: Finished difference Result 12 states and 12 transitions. [2019-01-31 14:31:04,149 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-01-31 14:31:04,150 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 7 [2019-01-31 14:31:04,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-31 14:31:04,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2019-01-31 14:31:04,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 12 transitions. [2019-01-31 14:31:04,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2019-01-31 14:31:04,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 12 transitions. [2019-01-31 14:31:04,152 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 7 states and 12 transitions. [2019-01-31 14:31:04,169 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 14:31:04,170 INFO L225 Difference]: With dead ends: 12 [2019-01-31 14:31:04,170 INFO L226 Difference]: Without dead ends: 11 [2019-01-31 14:31:04,170 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=58, Invalid=182, Unknown=0, NotChecked=0, Total=240 [2019-01-31 14:31:04,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2019-01-31 14:31:04,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 10. [2019-01-31 14:31:04,186 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-01-31 14:31:04,186 INFO L82 GeneralOperation]: Start isEquivalent. First operand 11 states. Second operand 10 states. [2019-01-31 14:31:04,187 INFO L74 IsIncluded]: Start isIncluded. First operand 11 states. Second operand 10 states. [2019-01-31 14:31:04,187 INFO L87 Difference]: Start difference. First operand 11 states. Second operand 10 states. [2019-01-31 14:31:04,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 14:31:04,188 INFO L93 Difference]: Finished difference Result 11 states and 11 transitions. [2019-01-31 14:31:04,189 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 11 transitions. [2019-01-31 14:31:04,189 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-31 14:31:04,189 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-01-31 14:31:04,189 INFO L74 IsIncluded]: Start isIncluded. First operand 10 states. Second operand 11 states. [2019-01-31 14:31:04,189 INFO L87 Difference]: Start difference. First operand 10 states. Second operand 11 states. [2019-01-31 14:31:04,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 14:31:04,191 INFO L93 Difference]: Finished difference Result 11 states and 11 transitions. [2019-01-31 14:31:04,191 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 11 transitions. [2019-01-31 14:31:04,191 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-31 14:31:04,191 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-01-31 14:31:04,191 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-01-31 14:31:04,191 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-01-31 14:31:04,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2019-01-31 14:31:04,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 10 transitions. [2019-01-31 14:31:04,193 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 10 transitions. Word has length 7 [2019-01-31 14:31:04,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-31 14:31:04,193 INFO L480 AbstractCegarLoop]: Abstraction has 10 states and 10 transitions. [2019-01-31 14:31:04,193 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-01-31 14:31:04,193 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 10 transitions. [2019-01-31 14:31:04,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-01-31 14:31:04,194 INFO L394 BasicCegarLoop]: Found error trace [2019-01-31 14:31:04,194 INFO L402 BasicCegarLoop]: trace histogram [4, 3, 1, 1] [2019-01-31 14:31:04,194 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-01-31 14:31:04,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-31 14:31:04,194 INFO L82 PathProgramCache]: Analyzing trace with hash -664969178, now seen corresponding path program 3 times [2019-01-31 14:31:04,194 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-01-31 14:31:04,195 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-31 14:31:04,195 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-01-31 14:31:04,195 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-31 14:31:04,195 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-01-31 14:31:04,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-31 14:31:04,595 INFO L273 TraceCheckUtils]: 0: Hoare triple {243#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {245#(and (or (<= main_i 0) (<= main_n 3)) (or (< 3 main_n) (<= 0 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:04,596 INFO L273 TraceCheckUtils]: 1: Hoare triple {245#(and (or (<= main_i 0) (<= main_n 3)) (or (< 3 main_n) (<= 0 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {246#(and (or (<= main_i 4) (<= main_n 3)) (or (< 3 main_n) (<= 4 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:04,597 INFO L273 TraceCheckUtils]: 2: Hoare triple {246#(and (or (<= main_i 4) (<= main_n 3)) (or (< 3 main_n) (<= 4 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {246#(and (or (<= main_i 4) (<= main_n 3)) (or (< 3 main_n) (<= 4 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:04,598 INFO L273 TraceCheckUtils]: 3: Hoare triple {246#(and (or (<= main_i 4) (<= main_n 3)) (or (< 3 main_n) (<= 4 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {247#(and (or (<= main_i 8) (<= main_n 3)) (= 23 (select main_a (* 4 main_n))) (or (< 3 main_n) (<= 8 main_i)))} is VALID [2019-01-31 14:31:04,600 INFO L273 TraceCheckUtils]: 4: Hoare triple {247#(and (or (<= main_i 8) (<= main_n 3)) (= 23 (select main_a (* 4 main_n))) (or (< 3 main_n) (<= 8 main_i)))} assume i <= n * 4; {247#(and (or (<= main_i 8) (<= main_n 3)) (= 23 (select main_a (* 4 main_n))) (or (< 3 main_n) (<= 8 main_i)))} is VALID [2019-01-31 14:31:04,601 INFO L273 TraceCheckUtils]: 5: Hoare triple {247#(and (or (<= main_i 8) (<= main_n 3)) (= 23 (select main_a (* 4 main_n))) (or (< 3 main_n) (<= 8 main_i)))} assume a[i] != 23;i := i + 4; {248#(and (or (= (* 4 main_n) main_i) (and (or (< 3 main_n) (<= (* 4 main_n) main_i)) (or (<= main_n 3) (<= main_i 12)))) (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))))} is VALID [2019-01-31 14:31:04,602 INFO L273 TraceCheckUtils]: 6: Hoare triple {248#(and (or (= (* 4 main_n) main_i) (and (or (< 3 main_n) (<= (* 4 main_n) main_i)) (or (<= main_n 3) (<= main_i 12)))) (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))))} assume i <= n * 4; {249#(and (or (= (* 4 main_n) main_i) (and (< 3 main_n) (<= main_i 12))) (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))))} is VALID [2019-01-31 14:31:04,604 INFO L273 TraceCheckUtils]: 7: Hoare triple {249#(and (or (= (* 4 main_n) main_i) (and (< 3 main_n) (<= main_i 12))) (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))))} assume a[i] != 23;i := i + 4; {250#(and (<= main_i 16) (<= 4 main_n))} is VALID [2019-01-31 14:31:04,604 INFO L273 TraceCheckUtils]: 8: Hoare triple {250#(and (<= main_i 16) (<= 4 main_n))} assume !(i <= n * 4); {244#false} is VALID [2019-01-31 14:31:04,606 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 14:31:04,606 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-31 14:31:04,606 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-01-31 14:31:04,606 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-01-31 14:31:04,607 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-01-31 14:31:04,607 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-31 14:31:04,607 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 14:31:04,617 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2019-01-31 14:31:04,617 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder TERMS_WITH_SMALL_CONSTANTS_FIRST (IT: FPandBP) [2019-01-31 14:31:04,623 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-01-31 14:31:04,623 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-01-31 14:31:04,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-31 14:31:04,627 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-31 14:31:04,635 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 14:31:04,636 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-01-31 14:31:04,641 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-31 14:31:04,642 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2019-01-31 14:31:04,645 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-01-31 14:31:04,645 WARN L398 uantifierElimination]: Input elimination task: ∃ [v_main_a_7]. (and (= main_i 0) (= (store v_main_a_7 (* 4 main_n) 23) main_a)) [2019-01-31 14:31:04,646 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2019-01-31 14:31:04,789 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2019-01-31 14:31:04,801 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-01-31 14:31:04,806 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-31 14:31:04,807 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2019-01-31 14:31:04,818 INFO L273 TraceCheckUtils]: 0: Hoare triple {243#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {254#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:04,819 INFO L273 TraceCheckUtils]: 1: Hoare triple {254#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {258#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2019-01-31 14:31:04,826 INFO L273 TraceCheckUtils]: 2: Hoare triple {258#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume i <= n * 4; {258#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2019-01-31 14:31:04,826 INFO L273 TraceCheckUtils]: 3: Hoare triple {258#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume a[i] != 23;i := i + 4; {265#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:04,830 INFO L273 TraceCheckUtils]: 4: Hoare triple {265#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {265#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:04,830 INFO L273 TraceCheckUtils]: 5: Hoare triple {265#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {272#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2019-01-31 14:31:04,831 INFO L273 TraceCheckUtils]: 6: Hoare triple {272#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume i <= n * 4; {276#(and (<= main_i (* 4 main_n)) (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2019-01-31 14:31:04,833 INFO L273 TraceCheckUtils]: 7: Hoare triple {276#(and (<= main_i (* 4 main_n)) (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume a[i] != 23;i := i + 4; {250#(and (<= main_i 16) (<= 4 main_n))} is VALID [2019-01-31 14:31:04,834 INFO L273 TraceCheckUtils]: 8: Hoare triple {250#(and (<= main_i 16) (<= 4 main_n))} assume !(i <= n * 4); {244#false} is VALID [2019-01-31 14:31:04,835 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 14:31:04,835 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2019-01-31 14:31:05,114 INFO L273 TraceCheckUtils]: 8: Hoare triple {283#(<= main_i (* 4 main_n))} assume !(i <= n * 4); {244#false} is VALID [2019-01-31 14:31:05,116 INFO L273 TraceCheckUtils]: 7: Hoare triple {287#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} assume a[i] != 23;i := i + 4; {283#(<= main_i (* 4 main_n))} is VALID [2019-01-31 14:31:05,116 INFO L273 TraceCheckUtils]: 6: Hoare triple {291#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} assume i <= n * 4; {287#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} is VALID [2019-01-31 14:31:05,117 INFO L273 TraceCheckUtils]: 5: Hoare triple {295#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume a[i] != 23;i := i + 4; {291#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} is VALID [2019-01-31 14:31:05,118 INFO L273 TraceCheckUtils]: 4: Hoare triple {295#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume i <= n * 4; {295#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2019-01-31 14:31:05,119 INFO L273 TraceCheckUtils]: 3: Hoare triple {302#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume a[i] != 23;i := i + 4; {295#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2019-01-31 14:31:05,122 INFO L273 TraceCheckUtils]: 2: Hoare triple {302#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume i <= n * 4; {302#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2019-01-31 14:31:05,124 INFO L273 TraceCheckUtils]: 1: Hoare triple {309#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume a[i] != 23;i := i + 4; {302#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2019-01-31 14:31:05,125 INFO L273 TraceCheckUtils]: 0: Hoare triple {243#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {309#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2019-01-31 14:31:05,126 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 14:31:05,150 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-01-31 14:31:05,150 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 17 [2019-01-31 14:31:05,150 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-01-31 14:31:05,151 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 9 [2019-01-31 14:31:05,151 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-01-31 14:31:05,151 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 13 states. [2019-01-31 14:31:05,178 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 14:31:05,178 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2019-01-31 14:31:05,178 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2019-01-31 14:31:05,179 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=268, Unknown=0, NotChecked=0, Total=342 [2019-01-31 14:31:05,179 INFO L87 Difference]: Start difference. First operand 10 states and 10 transitions. Second operand 13 states. [2019-01-31 14:31:05,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 14:31:05,411 INFO L93 Difference]: Finished difference Result 14 states and 14 transitions. [2019-01-31 14:31:05,411 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-01-31 14:31:05,411 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 9 [2019-01-31 14:31:05,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-31 14:31:05,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2019-01-31 14:31:05,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 14 transitions. [2019-01-31 14:31:05,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2019-01-31 14:31:05,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 14 transitions. [2019-01-31 14:31:05,415 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 8 states and 14 transitions. [2019-01-31 14:31:05,456 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 14:31:05,457 INFO L225 Difference]: With dead ends: 14 [2019-01-31 14:31:05,457 INFO L226 Difference]: Without dead ends: 13 [2019-01-31 14:31:05,458 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=74, Invalid=268, Unknown=0, NotChecked=0, Total=342 [2019-01-31 14:31:05,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2019-01-31 14:31:05,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 12. [2019-01-31 14:31:05,496 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-01-31 14:31:05,496 INFO L82 GeneralOperation]: Start isEquivalent. First operand 13 states. Second operand 12 states. [2019-01-31 14:31:05,496 INFO L74 IsIncluded]: Start isIncluded. First operand 13 states. Second operand 12 states. [2019-01-31 14:31:05,496 INFO L87 Difference]: Start difference. First operand 13 states. Second operand 12 states. [2019-01-31 14:31:05,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 14:31:05,497 INFO L93 Difference]: Finished difference Result 13 states and 13 transitions. [2019-01-31 14:31:05,498 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2019-01-31 14:31:05,498 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-31 14:31:05,498 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-01-31 14:31:05,498 INFO L74 IsIncluded]: Start isIncluded. First operand 12 states. Second operand 13 states. [2019-01-31 14:31:05,499 INFO L87 Difference]: Start difference. First operand 12 states. Second operand 13 states. [2019-01-31 14:31:05,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 14:31:05,500 INFO L93 Difference]: Finished difference Result 13 states and 13 transitions. [2019-01-31 14:31:05,500 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2019-01-31 14:31:05,500 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-31 14:31:05,501 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-01-31 14:31:05,501 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-01-31 14:31:05,501 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-01-31 14:31:05,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2019-01-31 14:31:05,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2019-01-31 14:31:05,502 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 9 [2019-01-31 14:31:05,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-31 14:31:05,503 INFO L480 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2019-01-31 14:31:05,503 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2019-01-31 14:31:05,503 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2019-01-31 14:31:05,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-01-31 14:31:05,503 INFO L394 BasicCegarLoop]: Found error trace [2019-01-31 14:31:05,504 INFO L402 BasicCegarLoop]: trace histogram [5, 4, 1, 1] [2019-01-31 14:31:05,504 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-01-31 14:31:05,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-31 14:31:05,504 INFO L82 PathProgramCache]: Analyzing trace with hash 914748136, now seen corresponding path program 4 times [2019-01-31 14:31:05,504 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-01-31 14:31:05,505 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-31 14:31:05,505 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-01-31 14:31:05,506 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-31 14:31:05,506 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-01-31 14:31:05,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-31 14:31:05,919 INFO L273 TraceCheckUtils]: 0: Hoare triple {375#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {377#(and (or (and (<= 0 main_i) (= 23 (select main_a (* 4 main_n)))) (< 4 main_n)) (or (<= main_i 0) (<= main_n 4)))} is VALID [2019-01-31 14:31:05,926 INFO L273 TraceCheckUtils]: 1: Hoare triple {377#(and (or (and (<= 0 main_i) (= 23 (select main_a (* 4 main_n)))) (< 4 main_n)) (or (<= main_i 0) (<= main_n 4)))} assume a[i] != 23;i := i + 4; {378#(and (or (<= main_i 4) (<= main_n 4)) (or (< 4 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i))))} is VALID [2019-01-31 14:31:05,928 INFO L273 TraceCheckUtils]: 2: Hoare triple {378#(and (or (<= main_i 4) (<= main_n 4)) (or (< 4 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i))))} assume i <= n * 4; {378#(and (or (<= main_i 4) (<= main_n 4)) (or (< 4 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i))))} is VALID [2019-01-31 14:31:05,929 INFO L273 TraceCheckUtils]: 3: Hoare triple {378#(and (or (<= main_i 4) (<= main_n 4)) (or (< 4 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i))))} assume a[i] != 23;i := i + 4; {379#(and (or (<= main_i 8) (<= main_n 4)) (or (< 4 main_n) (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:31:05,931 INFO L273 TraceCheckUtils]: 4: Hoare triple {379#(and (or (<= main_i 8) (<= main_n 4)) (or (< 4 main_n) (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {379#(and (or (<= main_i 8) (<= main_n 4)) (or (< 4 main_n) (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:31:05,933 INFO L273 TraceCheckUtils]: 5: Hoare triple {379#(and (or (<= main_i 8) (<= main_n 4)) (or (< 4 main_n) (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {380#(and (or (<= main_n 4) (<= main_i 12)) (or (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n)))) (< 4 main_n)))} is VALID [2019-01-31 14:31:05,933 INFO L273 TraceCheckUtils]: 6: Hoare triple {380#(and (or (<= main_n 4) (<= main_i 12)) (or (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n)))) (< 4 main_n)))} assume i <= n * 4; {380#(and (or (<= main_n 4) (<= main_i 12)) (or (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n)))) (< 4 main_n)))} is VALID [2019-01-31 14:31:05,935 INFO L273 TraceCheckUtils]: 7: Hoare triple {380#(and (or (<= main_n 4) (<= main_i 12)) (or (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n)))) (< 4 main_n)))} assume a[i] != 23;i := i + 4; {381#(and (or (and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (<= (* 4 main_n) main_i)) (< 4 main_n)) (or (<= main_i 16) (<= main_n 4)))} is VALID [2019-01-31 14:31:05,935 INFO L273 TraceCheckUtils]: 8: Hoare triple {381#(and (or (and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (<= (* 4 main_n) main_i)) (< 4 main_n)) (or (<= main_i 16) (<= main_n 4)))} assume i <= n * 4; {382#(and (or (< 4 main_n) (and (<= (* 4 main_n) main_i) (<= main_i (* 4 main_n)) (= 23 (select main_a main_i)))) (<= main_i 16))} is VALID [2019-01-31 14:31:05,937 INFO L273 TraceCheckUtils]: 9: Hoare triple {382#(and (or (< 4 main_n) (and (<= (* 4 main_n) main_i) (<= main_i (* 4 main_n)) (= 23 (select main_a main_i)))) (<= main_i 16))} assume a[i] != 23;i := i + 4; {383#(and (<= main_i 20) (<= 5 main_n))} is VALID [2019-01-31 14:31:05,938 INFO L273 TraceCheckUtils]: 10: Hoare triple {383#(and (<= main_i 20) (<= 5 main_n))} assume !(i <= n * 4); {376#false} is VALID [2019-01-31 14:31:05,939 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 14:31:05,940 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-31 14:31:05,940 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-01-31 14:31:05,940 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-01-31 14:31:05,941 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-01-31 14:31:05,941 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-31 14:31:05,941 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 14:31:05,951 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-31 14:31:05,951 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2019-01-31 14:31:05,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-31 14:31:05,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-31 14:31:05,980 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-31 14:31:06,083 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 14:31:06,087 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-01-31 14:31:06,095 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-31 14:31:06,095 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2019-01-31 14:31:06,097 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-01-31 14:31:06,097 WARN L398 uantifierElimination]: Input elimination task: ∃ [v_main_a_8]. (and (= main_i 0) (= main_a (store v_main_a_8 (* 4 main_n) 23))) [2019-01-31 14:31:06,097 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2019-01-31 14:31:06,376 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2019-01-31 14:31:06,380 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-01-31 14:31:06,384 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-31 14:31:06,385 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2019-01-31 14:31:06,416 INFO L273 TraceCheckUtils]: 0: Hoare triple {375#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {387#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:06,417 INFO L273 TraceCheckUtils]: 1: Hoare triple {387#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {391#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2019-01-31 14:31:06,417 INFO L273 TraceCheckUtils]: 2: Hoare triple {391#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume i <= n * 4; {391#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2019-01-31 14:31:06,418 INFO L273 TraceCheckUtils]: 3: Hoare triple {391#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume a[i] != 23;i := i + 4; {398#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:06,419 INFO L273 TraceCheckUtils]: 4: Hoare triple {398#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {398#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:06,420 INFO L273 TraceCheckUtils]: 5: Hoare triple {398#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {405#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2019-01-31 14:31:06,421 INFO L273 TraceCheckUtils]: 6: Hoare triple {405#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume i <= n * 4; {405#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2019-01-31 14:31:06,422 INFO L273 TraceCheckUtils]: 7: Hoare triple {405#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume a[i] != 23;i := i + 4; {412#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:06,423 INFO L273 TraceCheckUtils]: 8: Hoare triple {412#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {416#(and (= main_i 16) (<= main_i (* 4 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:06,424 INFO L273 TraceCheckUtils]: 9: Hoare triple {416#(and (= main_i 16) (<= main_i (* 4 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {383#(and (<= main_i 20) (<= 5 main_n))} is VALID [2019-01-31 14:31:06,426 INFO L273 TraceCheckUtils]: 10: Hoare triple {383#(and (<= main_i 20) (<= 5 main_n))} assume !(i <= n * 4); {376#false} is VALID [2019-01-31 14:31:06,427 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 14:31:06,427 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2019-01-31 14:31:06,695 INFO L273 TraceCheckUtils]: 10: Hoare triple {423#(<= main_i (* 4 main_n))} assume !(i <= n * 4); {376#false} is VALID [2019-01-31 14:31:06,696 INFO L273 TraceCheckUtils]: 9: Hoare triple {427#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} assume a[i] != 23;i := i + 4; {423#(<= main_i (* 4 main_n))} is VALID [2019-01-31 14:31:06,697 INFO L273 TraceCheckUtils]: 8: Hoare triple {431#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} assume i <= n * 4; {427#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} is VALID [2019-01-31 14:31:06,699 INFO L273 TraceCheckUtils]: 7: Hoare triple {435#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume a[i] != 23;i := i + 4; {431#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} is VALID [2019-01-31 14:31:06,699 INFO L273 TraceCheckUtils]: 6: Hoare triple {435#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume i <= n * 4; {435#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2019-01-31 14:31:06,701 INFO L273 TraceCheckUtils]: 5: Hoare triple {442#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume a[i] != 23;i := i + 4; {435#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2019-01-31 14:31:06,701 INFO L273 TraceCheckUtils]: 4: Hoare triple {442#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume i <= n * 4; {442#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2019-01-31 14:31:06,703 INFO L273 TraceCheckUtils]: 3: Hoare triple {449#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume a[i] != 23;i := i + 4; {442#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2019-01-31 14:31:06,703 INFO L273 TraceCheckUtils]: 2: Hoare triple {449#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume i <= n * 4; {449#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2019-01-31 14:31:06,705 INFO L273 TraceCheckUtils]: 1: Hoare triple {456#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume a[i] != 23;i := i + 4; {449#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2019-01-31 14:31:06,706 INFO L273 TraceCheckUtils]: 0: Hoare triple {375#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {456#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2019-01-31 14:31:06,707 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 14:31:06,727 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-01-31 14:31:06,727 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 20 [2019-01-31 14:31:06,727 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-01-31 14:31:06,727 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 11 [2019-01-31 14:31:06,728 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-01-31 14:31:06,728 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 15 states. [2019-01-31 14:31:06,751 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 14:31:06,751 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2019-01-31 14:31:06,751 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2019-01-31 14:31:06,751 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=370, Unknown=0, NotChecked=0, Total=462 [2019-01-31 14:31:06,752 INFO L87 Difference]: Start difference. First operand 12 states and 12 transitions. Second operand 15 states. [2019-01-31 14:31:07,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 14:31:07,214 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions. [2019-01-31 14:31:07,214 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-01-31 14:31:07,214 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 11 [2019-01-31 14:31:07,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-31 14:31:07,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2019-01-31 14:31:07,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 16 transitions. [2019-01-31 14:31:07,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2019-01-31 14:31:07,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 16 transitions. [2019-01-31 14:31:07,217 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 9 states and 16 transitions. [2019-01-31 14:31:07,239 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 14:31:07,240 INFO L225 Difference]: With dead ends: 16 [2019-01-31 14:31:07,240 INFO L226 Difference]: Without dead ends: 15 [2019-01-31 14:31:07,241 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 108 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=92, Invalid=370, Unknown=0, NotChecked=0, Total=462 [2019-01-31 14:31:07,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2019-01-31 14:31:07,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 14. [2019-01-31 14:31:07,257 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-01-31 14:31:07,257 INFO L82 GeneralOperation]: Start isEquivalent. First operand 15 states. Second operand 14 states. [2019-01-31 14:31:07,257 INFO L74 IsIncluded]: Start isIncluded. First operand 15 states. Second operand 14 states. [2019-01-31 14:31:07,258 INFO L87 Difference]: Start difference. First operand 15 states. Second operand 14 states. [2019-01-31 14:31:07,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 14:31:07,260 INFO L93 Difference]: Finished difference Result 15 states and 15 transitions. [2019-01-31 14:31:07,260 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2019-01-31 14:31:07,260 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-31 14:31:07,260 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-01-31 14:31:07,261 INFO L74 IsIncluded]: Start isIncluded. First operand 14 states. Second operand 15 states. [2019-01-31 14:31:07,261 INFO L87 Difference]: Start difference. First operand 14 states. Second operand 15 states. [2019-01-31 14:31:07,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 14:31:07,262 INFO L93 Difference]: Finished difference Result 15 states and 15 transitions. [2019-01-31 14:31:07,262 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2019-01-31 14:31:07,262 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-31 14:31:07,262 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-01-31 14:31:07,262 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-01-31 14:31:07,262 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-01-31 14:31:07,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2019-01-31 14:31:07,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions. [2019-01-31 14:31:07,263 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 14 transitions. Word has length 11 [2019-01-31 14:31:07,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-31 14:31:07,264 INFO L480 AbstractCegarLoop]: Abstraction has 14 states and 14 transitions. [2019-01-31 14:31:07,264 INFO L481 AbstractCegarLoop]: Interpolant automaton has 15 states. [2019-01-31 14:31:07,264 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions. [2019-01-31 14:31:07,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-01-31 14:31:07,264 INFO L394 BasicCegarLoop]: Found error trace [2019-01-31 14:31:07,264 INFO L402 BasicCegarLoop]: trace histogram [6, 5, 1, 1] [2019-01-31 14:31:07,264 INFO L423 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-01-31 14:31:07,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-31 14:31:07,265 INFO L82 PathProgramCache]: Analyzing trace with hash -1395335894, now seen corresponding path program 5 times [2019-01-31 14:31:07,265 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-01-31 14:31:07,266 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-31 14:31:07,266 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-31 14:31:07,266 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-31 14:31:07,266 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-01-31 14:31:07,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-31 14:31:07,748 INFO L273 TraceCheckUtils]: 0: Hoare triple {532#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {534#(and (or (<= main_n 5) (<= main_i 0)) (or (and (<= 0 main_i) (= 23 (select main_a (* 4 main_n)))) (< 5 main_n)))} is VALID [2019-01-31 14:31:07,750 INFO L273 TraceCheckUtils]: 1: Hoare triple {534#(and (or (<= main_n 5) (<= main_i 0)) (or (and (<= 0 main_i) (= 23 (select main_a (* 4 main_n)))) (< 5 main_n)))} assume a[i] != 23;i := i + 4; {535#(and (or (<= main_n 5) (<= main_i 4)) (or (< 5 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i))))} is VALID [2019-01-31 14:31:07,751 INFO L273 TraceCheckUtils]: 2: Hoare triple {535#(and (or (<= main_n 5) (<= main_i 4)) (or (< 5 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i))))} assume i <= n * 4; {535#(and (or (<= main_n 5) (<= main_i 4)) (or (< 5 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i))))} is VALID [2019-01-31 14:31:07,752 INFO L273 TraceCheckUtils]: 3: Hoare triple {535#(and (or (<= main_n 5) (<= main_i 4)) (or (< 5 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i))))} assume a[i] != 23;i := i + 4; {536#(and (or (<= main_n 5) (<= main_i 8)) (or (< 5 main_n) (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:31:07,753 INFO L273 TraceCheckUtils]: 4: Hoare triple {536#(and (or (<= main_n 5) (<= main_i 8)) (or (< 5 main_n) (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {536#(and (or (<= main_n 5) (<= main_i 8)) (or (< 5 main_n) (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:31:07,754 INFO L273 TraceCheckUtils]: 5: Hoare triple {536#(and (or (<= main_n 5) (<= main_i 8)) (or (< 5 main_n) (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {537#(and (or (<= main_n 5) (<= main_i 12)) (or (< 5 main_n) (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:31:07,755 INFO L273 TraceCheckUtils]: 6: Hoare triple {537#(and (or (<= main_n 5) (<= main_i 12)) (or (< 5 main_n) (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {537#(and (or (<= main_n 5) (<= main_i 12)) (or (< 5 main_n) (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:31:07,756 INFO L273 TraceCheckUtils]: 7: Hoare triple {537#(and (or (<= main_n 5) (<= main_i 12)) (or (< 5 main_n) (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {538#(and (or (< 5 main_n) (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 5) (<= main_i 16)))} is VALID [2019-01-31 14:31:07,762 INFO L273 TraceCheckUtils]: 8: Hoare triple {538#(and (or (< 5 main_n) (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 5) (<= main_i 16)))} assume i <= n * 4; {538#(and (or (< 5 main_n) (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 5) (<= main_i 16)))} is VALID [2019-01-31 14:31:07,763 INFO L273 TraceCheckUtils]: 9: Hoare triple {538#(and (or (< 5 main_n) (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 5) (<= main_i 16)))} assume a[i] != 23;i := i + 4; {539#(and (or (and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (<= (* 4 main_n) main_i)) (< 5 main_n)) (or (<= main_n 5) (<= main_i 20)))} is VALID [2019-01-31 14:31:07,764 INFO L273 TraceCheckUtils]: 10: Hoare triple {539#(and (or (and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (<= (* 4 main_n) main_i)) (< 5 main_n)) (or (<= main_n 5) (<= main_i 20)))} assume i <= n * 4; {540#(and (or (< 5 main_n) (and (<= (* 4 main_n) main_i) (<= main_i (* 4 main_n)) (= 23 (select main_a main_i)))) (<= main_i 20))} is VALID [2019-01-31 14:31:07,765 INFO L273 TraceCheckUtils]: 11: Hoare triple {540#(and (or (< 5 main_n) (and (<= (* 4 main_n) main_i) (<= main_i (* 4 main_n)) (= 23 (select main_a main_i)))) (<= main_i 20))} assume a[i] != 23;i := i + 4; {541#(and (< 5 main_n) (<= main_i 24))} is VALID [2019-01-31 14:31:07,765 INFO L273 TraceCheckUtils]: 12: Hoare triple {541#(and (< 5 main_n) (<= main_i 24))} assume !(i <= n * 4); {533#false} is VALID [2019-01-31 14:31:07,766 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 14:31:07,766 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-31 14:31:07,767 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-01-31 14:31:07,767 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-01-31 14:31:07,767 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-01-31 14:31:07,767 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-31 14:31:07,767 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 14:31:07,783 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2019-01-31 14:31:07,784 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST2 (IT: FPandBP) [2019-01-31 14:31:07,815 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2019-01-31 14:31:07,815 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-01-31 14:31:07,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-31 14:31:07,821 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-31 14:31:07,839 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 14:31:07,864 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-01-31 14:31:07,911 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-31 14:31:07,911 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2019-01-31 14:31:07,913 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-01-31 14:31:07,913 WARN L398 uantifierElimination]: Input elimination task: ∃ [v_main_a_9]. (and (= (store v_main_a_9 (* 4 main_n) 23) main_a) (= main_i 0)) [2019-01-31 14:31:07,913 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2019-01-31 14:31:08,087 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2019-01-31 14:31:08,090 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-01-31 14:31:08,094 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-31 14:31:08,094 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2019-01-31 14:31:08,097 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-01-31 14:31:08,097 WARN L398 uantifierElimination]: Input elimination task: ∃ [main_a]. (let ((.cse0 (* 4 main_n))) (and (not (= 23 (select main_a 20))) (<= main_i 24) (<= 20 .cse0) (= 23 (select main_a .cse0)))) [2019-01-31 14:31:08,097 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (let ((.cse0 (* 4 main_n))) (and (not (= 20 .cse0)) (<= main_i 24) (<= 20 .cse0))) [2019-01-31 14:31:08,109 INFO L273 TraceCheckUtils]: 0: Hoare triple {532#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {545#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:08,110 INFO L273 TraceCheckUtils]: 1: Hoare triple {545#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {549#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2019-01-31 14:31:08,111 INFO L273 TraceCheckUtils]: 2: Hoare triple {549#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume i <= n * 4; {549#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2019-01-31 14:31:08,111 INFO L273 TraceCheckUtils]: 3: Hoare triple {549#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume a[i] != 23;i := i + 4; {556#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:08,112 INFO L273 TraceCheckUtils]: 4: Hoare triple {556#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {556#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:08,113 INFO L273 TraceCheckUtils]: 5: Hoare triple {556#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {563#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2019-01-31 14:31:08,114 INFO L273 TraceCheckUtils]: 6: Hoare triple {563#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume i <= n * 4; {563#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2019-01-31 14:31:08,115 INFO L273 TraceCheckUtils]: 7: Hoare triple {563#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume a[i] != 23;i := i + 4; {570#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:08,116 INFO L273 TraceCheckUtils]: 8: Hoare triple {570#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {570#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:08,118 INFO L273 TraceCheckUtils]: 9: Hoare triple {570#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {577#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:08,133 INFO L273 TraceCheckUtils]: 10: Hoare triple {577#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {581#(and (= main_i 20) (<= main_i (* 4 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:08,134 INFO L273 TraceCheckUtils]: 11: Hoare triple {581#(and (= main_i 20) (<= main_i (* 4 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {541#(and (< 5 main_n) (<= main_i 24))} is VALID [2019-01-31 14:31:08,135 INFO L273 TraceCheckUtils]: 12: Hoare triple {541#(and (< 5 main_n) (<= main_i 24))} assume !(i <= n * 4); {533#false} is VALID [2019-01-31 14:31:08,136 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 14:31:08,136 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2019-01-31 14:31:08,415 INFO L273 TraceCheckUtils]: 12: Hoare triple {588#(<= main_i (* 4 main_n))} assume !(i <= n * 4); {533#false} is VALID [2019-01-31 14:31:08,437 INFO L273 TraceCheckUtils]: 11: Hoare triple {592#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} assume a[i] != 23;i := i + 4; {588#(<= main_i (* 4 main_n))} is VALID [2019-01-31 14:31:08,438 INFO L273 TraceCheckUtils]: 10: Hoare triple {596#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} assume i <= n * 4; {592#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} is VALID [2019-01-31 14:31:08,441 INFO L273 TraceCheckUtils]: 9: Hoare triple {600#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume a[i] != 23;i := i + 4; {596#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} is VALID [2019-01-31 14:31:08,442 INFO L273 TraceCheckUtils]: 8: Hoare triple {600#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume i <= n * 4; {600#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2019-01-31 14:31:08,442 INFO L273 TraceCheckUtils]: 7: Hoare triple {607#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume a[i] != 23;i := i + 4; {600#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2019-01-31 14:31:08,443 INFO L273 TraceCheckUtils]: 6: Hoare triple {607#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume i <= n * 4; {607#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2019-01-31 14:31:08,444 INFO L273 TraceCheckUtils]: 5: Hoare triple {614#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume a[i] != 23;i := i + 4; {607#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2019-01-31 14:31:08,444 INFO L273 TraceCheckUtils]: 4: Hoare triple {614#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume i <= n * 4; {614#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2019-01-31 14:31:08,445 INFO L273 TraceCheckUtils]: 3: Hoare triple {621#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume a[i] != 23;i := i + 4; {614#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2019-01-31 14:31:08,446 INFO L273 TraceCheckUtils]: 2: Hoare triple {621#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume i <= n * 4; {621#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2019-01-31 14:31:08,447 INFO L273 TraceCheckUtils]: 1: Hoare triple {628#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {621#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2019-01-31 14:31:08,448 INFO L273 TraceCheckUtils]: 0: Hoare triple {532#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {628#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2019-01-31 14:31:08,450 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 14:31:08,470 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-01-31 14:31:08,470 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 23 [2019-01-31 14:31:08,470 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-01-31 14:31:08,471 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 13 [2019-01-31 14:31:08,471 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-01-31 14:31:08,471 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 17 states. [2019-01-31 14:31:08,502 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 25 edges. 25 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-01-31 14:31:08,502 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2019-01-31 14:31:08,503 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2019-01-31 14:31:08,503 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=112, Invalid=488, Unknown=0, NotChecked=0, Total=600 [2019-01-31 14:31:08,504 INFO L87 Difference]: Start difference. First operand 14 states and 14 transitions. Second operand 17 states. [2019-01-31 14:31:08,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 14:31:08,961 INFO L93 Difference]: Finished difference Result 18 states and 18 transitions. [2019-01-31 14:31:08,961 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-01-31 14:31:08,961 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 13 [2019-01-31 14:31:08,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-31 14:31:08,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2019-01-31 14:31:08,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 18 transitions. [2019-01-31 14:31:08,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2019-01-31 14:31:08,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 18 transitions. [2019-01-31 14:31:08,965 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 10 states and 18 transitions. [2019-01-31 14:31:08,987 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 14:31:08,988 INFO L225 Difference]: With dead ends: 18 [2019-01-31 14:31:08,988 INFO L226 Difference]: Without dead ends: 17 [2019-01-31 14:31:08,989 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 140 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=112, Invalid=488, Unknown=0, NotChecked=0, Total=600 [2019-01-31 14:31:08,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2019-01-31 14:31:09,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 16. [2019-01-31 14:31:09,014 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-01-31 14:31:09,014 INFO L82 GeneralOperation]: Start isEquivalent. First operand 17 states. Second operand 16 states. [2019-01-31 14:31:09,014 INFO L74 IsIncluded]: Start isIncluded. First operand 17 states. Second operand 16 states. [2019-01-31 14:31:09,014 INFO L87 Difference]: Start difference. First operand 17 states. Second operand 16 states. [2019-01-31 14:31:09,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 14:31:09,016 INFO L93 Difference]: Finished difference Result 17 states and 17 transitions. [2019-01-31 14:31:09,017 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 17 transitions. [2019-01-31 14:31:09,017 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-31 14:31:09,017 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-01-31 14:31:09,017 INFO L74 IsIncluded]: Start isIncluded. First operand 16 states. Second operand 17 states. [2019-01-31 14:31:09,017 INFO L87 Difference]: Start difference. First operand 16 states. Second operand 17 states. [2019-01-31 14:31:09,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 14:31:09,018 INFO L93 Difference]: Finished difference Result 17 states and 17 transitions. [2019-01-31 14:31:09,019 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 17 transitions. [2019-01-31 14:31:09,019 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-31 14:31:09,019 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-01-31 14:31:09,019 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-01-31 14:31:09,020 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-01-31 14:31:09,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2019-01-31 14:31:09,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2019-01-31 14:31:09,021 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 13 [2019-01-31 14:31:09,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-31 14:31:09,021 INFO L480 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2019-01-31 14:31:09,021 INFO L481 AbstractCegarLoop]: Interpolant automaton has 17 states. [2019-01-31 14:31:09,021 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2019-01-31 14:31:09,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-01-31 14:31:09,022 INFO L394 BasicCegarLoop]: Found error trace [2019-01-31 14:31:09,022 INFO L402 BasicCegarLoop]: trace histogram [7, 6, 1, 1] [2019-01-31 14:31:09,023 INFO L423 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-01-31 14:31:09,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-31 14:31:09,023 INFO L82 PathProgramCache]: Analyzing trace with hash -887996692, now seen corresponding path program 6 times [2019-01-31 14:31:09,023 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-01-31 14:31:09,024 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-31 14:31:09,025 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-01-31 14:31:09,025 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-31 14:31:09,025 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-01-31 14:31:09,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-31 14:31:09,498 INFO L273 TraceCheckUtils]: 0: Hoare triple {714#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {716#(and (or (<= main_n 6) (<= main_i 0)) (or (< 6 main_n) (<= 0 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:09,500 INFO L273 TraceCheckUtils]: 1: Hoare triple {716#(and (or (<= main_n 6) (<= main_i 0)) (or (< 6 main_n) (<= 0 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {717#(and (or (< 6 main_n) (<= 4 main_i)) (or (<= main_n 6) (<= main_i 4)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:09,500 INFO L273 TraceCheckUtils]: 2: Hoare triple {717#(and (or (< 6 main_n) (<= 4 main_i)) (or (<= main_n 6) (<= main_i 4)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {717#(and (or (< 6 main_n) (<= 4 main_i)) (or (<= main_n 6) (<= main_i 4)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:09,524 INFO L273 TraceCheckUtils]: 3: Hoare triple {717#(and (or (< 6 main_n) (<= 4 main_i)) (or (<= main_n 6) (<= main_i 4)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {718#(and (or (<= main_n 6) (<= main_i 8)) (or (< 6 main_n) (<= 8 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:09,533 INFO L273 TraceCheckUtils]: 4: Hoare triple {718#(and (or (<= main_n 6) (<= main_i 8)) (or (< 6 main_n) (<= 8 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {718#(and (or (<= main_n 6) (<= main_i 8)) (or (< 6 main_n) (<= 8 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:09,534 INFO L273 TraceCheckUtils]: 5: Hoare triple {718#(and (or (<= main_n 6) (<= main_i 8)) (or (< 6 main_n) (<= 8 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {719#(and (or (<= main_n 6) (<= main_i 12)) (or (< 6 main_n) (<= 12 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:09,535 INFO L273 TraceCheckUtils]: 6: Hoare triple {719#(and (or (<= main_n 6) (<= main_i 12)) (or (< 6 main_n) (<= 12 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {719#(and (or (<= main_n 6) (<= main_i 12)) (or (< 6 main_n) (<= 12 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:09,536 INFO L273 TraceCheckUtils]: 7: Hoare triple {719#(and (or (<= main_n 6) (<= main_i 12)) (or (< 6 main_n) (<= 12 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {720#(and (or (< 6 main_n) (<= 16 main_i)) (or (<= main_n 6) (<= main_i 16)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:09,537 INFO L273 TraceCheckUtils]: 8: Hoare triple {720#(and (or (< 6 main_n) (<= 16 main_i)) (or (<= main_n 6) (<= main_i 16)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {720#(and (or (< 6 main_n) (<= 16 main_i)) (or (<= main_n 6) (<= main_i 16)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:09,537 INFO L273 TraceCheckUtils]: 9: Hoare triple {720#(and (or (< 6 main_n) (<= 16 main_i)) (or (<= main_n 6) (<= main_i 16)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {721#(and (or (< 6 main_n) (<= 20 main_i)) (or (<= main_n 6) (<= main_i 20)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:09,538 INFO L273 TraceCheckUtils]: 10: Hoare triple {721#(and (or (< 6 main_n) (<= 20 main_i)) (or (<= main_n 6) (<= main_i 20)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {721#(and (or (< 6 main_n) (<= 20 main_i)) (or (<= main_n 6) (<= main_i 20)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:09,540 INFO L273 TraceCheckUtils]: 11: Hoare triple {721#(and (or (< 6 main_n) (<= 20 main_i)) (or (<= main_n 6) (<= main_i 20)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {722#(and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (or (= (* 4 main_n) main_i) (and (or (<= main_n 6) (<= main_i 24)) (or (< 6 main_n) (<= (* 4 main_n) main_i)))))} is VALID [2019-01-31 14:31:09,541 INFO L273 TraceCheckUtils]: 12: Hoare triple {722#(and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (or (= (* 4 main_n) main_i) (and (or (<= main_n 6) (<= main_i 24)) (or (< 6 main_n) (<= (* 4 main_n) main_i)))))} assume i <= n * 4; {723#(and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (or (= (* 4 main_n) main_i) (and (< 6 main_n) (<= main_i 24))))} is VALID [2019-01-31 14:31:09,542 INFO L273 TraceCheckUtils]: 13: Hoare triple {723#(and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (or (= (* 4 main_n) main_i) (and (< 6 main_n) (<= main_i 24))))} assume a[i] != 23;i := i + 4; {724#(and (<= 7 main_n) (<= main_i 28))} is VALID [2019-01-31 14:31:09,543 INFO L273 TraceCheckUtils]: 14: Hoare triple {724#(and (<= 7 main_n) (<= main_i 28))} assume !(i <= n * 4); {715#false} is VALID [2019-01-31 14:31:09,545 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 14:31:09,545 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-31 14:31:09,546 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-01-31 14:31:09,546 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-01-31 14:31:09,546 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-01-31 14:31:09,546 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-31 14:31:09,546 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 14:31:09,565 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2019-01-31 14:31:09,565 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder TERMS_WITH_SMALL_CONSTANTS_FIRST (IT: FPandBP) [2019-01-31 14:31:09,579 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-01-31 14:31:09,579 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-01-31 14:31:09,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-31 14:31:09,586 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-31 14:31:09,603 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 14:31:09,606 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-01-31 14:31:09,614 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-31 14:31:09,614 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2019-01-31 14:31:09,616 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-01-31 14:31:09,616 WARN L398 uantifierElimination]: Input elimination task: ∃ [v_main_a_10]. (and (= main_i 0) (= main_a (store v_main_a_10 (* 4 main_n) 23))) [2019-01-31 14:31:09,616 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2019-01-31 14:31:09,832 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2019-01-31 14:31:09,834 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-01-31 14:31:09,841 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-31 14:31:09,841 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2019-01-31 14:31:09,843 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-01-31 14:31:09,844 WARN L398 uantifierElimination]: Input elimination task: ∃ [main_a]. (let ((.cse0 (* 4 main_n))) (and (not (= 23 (select main_a 24))) (<= 24 .cse0) (= 23 (select main_a .cse0)) (<= main_i 28))) [2019-01-31 14:31:09,844 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (let ((.cse0 (* 4 main_n))) (and (<= 24 .cse0) (not (= 24 .cse0)) (<= main_i 28))) [2019-01-31 14:31:09,857 INFO L273 TraceCheckUtils]: 0: Hoare triple {714#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {728#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:09,858 INFO L273 TraceCheckUtils]: 1: Hoare triple {728#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {732#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2019-01-31 14:31:09,860 INFO L273 TraceCheckUtils]: 2: Hoare triple {732#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume i <= n * 4; {732#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2019-01-31 14:31:09,864 INFO L273 TraceCheckUtils]: 3: Hoare triple {732#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume a[i] != 23;i := i + 4; {739#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:09,864 INFO L273 TraceCheckUtils]: 4: Hoare triple {739#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {739#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:09,865 INFO L273 TraceCheckUtils]: 5: Hoare triple {739#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {746#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2019-01-31 14:31:09,865 INFO L273 TraceCheckUtils]: 6: Hoare triple {746#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume i <= n * 4; {746#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2019-01-31 14:31:09,866 INFO L273 TraceCheckUtils]: 7: Hoare triple {746#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume a[i] != 23;i := i + 4; {753#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:09,866 INFO L273 TraceCheckUtils]: 8: Hoare triple {753#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {753#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:09,867 INFO L273 TraceCheckUtils]: 9: Hoare triple {753#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {760#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:09,867 INFO L273 TraceCheckUtils]: 10: Hoare triple {760#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {760#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:09,868 INFO L273 TraceCheckUtils]: 11: Hoare triple {760#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {767#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:09,868 INFO L273 TraceCheckUtils]: 12: Hoare triple {767#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {771#(and (= main_i 24) (<= main_i (* 4 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:09,869 INFO L273 TraceCheckUtils]: 13: Hoare triple {771#(and (= main_i 24) (<= main_i (* 4 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {724#(and (<= 7 main_n) (<= main_i 28))} is VALID [2019-01-31 14:31:09,870 INFO L273 TraceCheckUtils]: 14: Hoare triple {724#(and (<= 7 main_n) (<= main_i 28))} assume !(i <= n * 4); {715#false} is VALID [2019-01-31 14:31:09,871 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 14:31:09,871 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2019-01-31 14:31:10,359 INFO L273 TraceCheckUtils]: 14: Hoare triple {778#(<= main_i (* 4 main_n))} assume !(i <= n * 4); {715#false} is VALID [2019-01-31 14:31:10,360 INFO L273 TraceCheckUtils]: 13: Hoare triple {782#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} assume a[i] != 23;i := i + 4; {778#(<= main_i (* 4 main_n))} is VALID [2019-01-31 14:31:10,362 INFO L273 TraceCheckUtils]: 12: Hoare triple {786#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} assume i <= n * 4; {782#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} is VALID [2019-01-31 14:31:10,363 INFO L273 TraceCheckUtils]: 11: Hoare triple {790#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume a[i] != 23;i := i + 4; {786#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} is VALID [2019-01-31 14:31:10,363 INFO L273 TraceCheckUtils]: 10: Hoare triple {790#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume i <= n * 4; {790#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2019-01-31 14:31:10,364 INFO L273 TraceCheckUtils]: 9: Hoare triple {797#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume a[i] != 23;i := i + 4; {790#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2019-01-31 14:31:10,364 INFO L273 TraceCheckUtils]: 8: Hoare triple {797#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume i <= n * 4; {797#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2019-01-31 14:31:10,365 INFO L273 TraceCheckUtils]: 7: Hoare triple {804#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume a[i] != 23;i := i + 4; {797#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2019-01-31 14:31:10,366 INFO L273 TraceCheckUtils]: 6: Hoare triple {804#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume i <= n * 4; {804#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2019-01-31 14:31:10,367 INFO L273 TraceCheckUtils]: 5: Hoare triple {811#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume a[i] != 23;i := i + 4; {804#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2019-01-31 14:31:10,368 INFO L273 TraceCheckUtils]: 4: Hoare triple {811#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume i <= n * 4; {811#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2019-01-31 14:31:10,369 INFO L273 TraceCheckUtils]: 3: Hoare triple {818#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {811#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2019-01-31 14:31:10,369 INFO L273 TraceCheckUtils]: 2: Hoare triple {818#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume i <= n * 4; {818#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2019-01-31 14:31:10,371 INFO L273 TraceCheckUtils]: 1: Hoare triple {825#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume a[i] != 23;i := i + 4; {818#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2019-01-31 14:31:10,372 INFO L273 TraceCheckUtils]: 0: Hoare triple {714#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {825#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2019-01-31 14:31:10,373 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 14:31:10,392 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-01-31 14:31:10,393 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 26 [2019-01-31 14:31:10,393 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-01-31 14:31:10,393 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 15 [2019-01-31 14:31:10,393 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-01-31 14:31:10,394 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 19 states. [2019-01-31 14:31:10,450 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 14:31:10,451 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2019-01-31 14:31:10,451 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2019-01-31 14:31:10,452 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=134, Invalid=622, Unknown=0, NotChecked=0, Total=756 [2019-01-31 14:31:10,452 INFO L87 Difference]: Start difference. First operand 16 states and 16 transitions. Second operand 19 states. [2019-01-31 14:31:10,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 14:31:10,983 INFO L93 Difference]: Finished difference Result 20 states and 20 transitions. [2019-01-31 14:31:10,983 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-01-31 14:31:10,983 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 15 [2019-01-31 14:31:10,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-31 14:31:10,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2019-01-31 14:31:10,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 20 transitions. [2019-01-31 14:31:10,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2019-01-31 14:31:10,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 20 transitions. [2019-01-31 14:31:10,987 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 11 states and 20 transitions. [2019-01-31 14:31:11,021 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 14:31:11,022 INFO L225 Difference]: With dead ends: 20 [2019-01-31 14:31:11,022 INFO L226 Difference]: Without dead ends: 19 [2019-01-31 14:31:11,024 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 176 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=134, Invalid=622, Unknown=0, NotChecked=0, Total=756 [2019-01-31 14:31:11,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2019-01-31 14:31:11,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 18. [2019-01-31 14:31:11,066 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-01-31 14:31:11,067 INFO L82 GeneralOperation]: Start isEquivalent. First operand 19 states. Second operand 18 states. [2019-01-31 14:31:11,067 INFO L74 IsIncluded]: Start isIncluded. First operand 19 states. Second operand 18 states. [2019-01-31 14:31:11,067 INFO L87 Difference]: Start difference. First operand 19 states. Second operand 18 states. [2019-01-31 14:31:11,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 14:31:11,069 INFO L93 Difference]: Finished difference Result 19 states and 19 transitions. [2019-01-31 14:31:11,069 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 19 transitions. [2019-01-31 14:31:11,069 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-31 14:31:11,070 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-01-31 14:31:11,070 INFO L74 IsIncluded]: Start isIncluded. First operand 18 states. Second operand 19 states. [2019-01-31 14:31:11,070 INFO L87 Difference]: Start difference. First operand 18 states. Second operand 19 states. [2019-01-31 14:31:11,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 14:31:11,071 INFO L93 Difference]: Finished difference Result 19 states and 19 transitions. [2019-01-31 14:31:11,071 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 19 transitions. [2019-01-31 14:31:11,071 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-31 14:31:11,072 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-01-31 14:31:11,072 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-01-31 14:31:11,072 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-01-31 14:31:11,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2019-01-31 14:31:11,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 18 transitions. [2019-01-31 14:31:11,073 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 18 transitions. Word has length 15 [2019-01-31 14:31:11,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-31 14:31:11,073 INFO L480 AbstractCegarLoop]: Abstraction has 18 states and 18 transitions. [2019-01-31 14:31:11,073 INFO L481 AbstractCegarLoop]: Interpolant automaton has 19 states. [2019-01-31 14:31:11,073 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 18 transitions. [2019-01-31 14:31:11,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-01-31 14:31:11,074 INFO L394 BasicCegarLoop]: Found error trace [2019-01-31 14:31:11,074 INFO L402 BasicCegarLoop]: trace histogram [8, 7, 1, 1] [2019-01-31 14:31:11,074 INFO L423 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-01-31 14:31:11,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-31 14:31:11,075 INFO L82 PathProgramCache]: Analyzing trace with hash 1333671982, now seen corresponding path program 7 times [2019-01-31 14:31:11,075 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-01-31 14:31:11,076 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-31 14:31:11,076 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-01-31 14:31:11,076 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-31 14:31:11,076 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-01-31 14:31:11,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-31 14:31:11,685 INFO L273 TraceCheckUtils]: 0: Hoare triple {921#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {923#(and (or (<= main_i 0) (<= main_n 7)) (or (< 7 main_n) (and (<= 0 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:31:11,686 INFO L273 TraceCheckUtils]: 1: Hoare triple {923#(and (or (<= main_i 0) (<= main_n 7)) (or (< 7 main_n) (and (<= 0 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {924#(and (or (< 7 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i))) (or (<= main_i 4) (<= main_n 7)))} is VALID [2019-01-31 14:31:11,687 INFO L273 TraceCheckUtils]: 2: Hoare triple {924#(and (or (< 7 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i))) (or (<= main_i 4) (<= main_n 7)))} assume i <= n * 4; {924#(and (or (< 7 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i))) (or (<= main_i 4) (<= main_n 7)))} is VALID [2019-01-31 14:31:11,688 INFO L273 TraceCheckUtils]: 3: Hoare triple {924#(and (or (< 7 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i))) (or (<= main_i 4) (<= main_n 7)))} assume a[i] != 23;i := i + 4; {925#(and (or (< 7 main_n) (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 8) (<= main_n 7)))} is VALID [2019-01-31 14:31:11,689 INFO L273 TraceCheckUtils]: 4: Hoare triple {925#(and (or (< 7 main_n) (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 8) (<= main_n 7)))} assume i <= n * 4; {925#(and (or (< 7 main_n) (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 8) (<= main_n 7)))} is VALID [2019-01-31 14:31:11,690 INFO L273 TraceCheckUtils]: 5: Hoare triple {925#(and (or (< 7 main_n) (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 8) (<= main_n 7)))} assume a[i] != 23;i := i + 4; {926#(and (or (< 7 main_n) (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 7) (<= main_i 12)))} is VALID [2019-01-31 14:31:11,691 INFO L273 TraceCheckUtils]: 6: Hoare triple {926#(and (or (< 7 main_n) (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 7) (<= main_i 12)))} assume i <= n * 4; {926#(and (or (< 7 main_n) (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 7) (<= main_i 12)))} is VALID [2019-01-31 14:31:11,692 INFO L273 TraceCheckUtils]: 7: Hoare triple {926#(and (or (< 7 main_n) (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 7) (<= main_i 12)))} assume a[i] != 23;i := i + 4; {927#(and (or (<= main_i 16) (<= main_n 7)) (or (< 7 main_n) (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:31:11,693 INFO L273 TraceCheckUtils]: 8: Hoare triple {927#(and (or (<= main_i 16) (<= main_n 7)) (or (< 7 main_n) (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {927#(and (or (<= main_i 16) (<= main_n 7)) (or (< 7 main_n) (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:31:11,696 INFO L273 TraceCheckUtils]: 9: Hoare triple {927#(and (or (<= main_i 16) (<= main_n 7)) (or (< 7 main_n) (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {928#(and (or (<= main_i 20) (<= main_n 7)) (or (< 7 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:31:11,697 INFO L273 TraceCheckUtils]: 10: Hoare triple {928#(and (or (<= main_i 20) (<= main_n 7)) (or (< 7 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {928#(and (or (<= main_i 20) (<= main_n 7)) (or (< 7 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:31:11,697 INFO L273 TraceCheckUtils]: 11: Hoare triple {928#(and (or (<= main_i 20) (<= main_n 7)) (or (< 7 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {929#(and (or (< 7 main_n) (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 24) (<= main_n 7)))} is VALID [2019-01-31 14:31:11,698 INFO L273 TraceCheckUtils]: 12: Hoare triple {929#(and (or (< 7 main_n) (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 24) (<= main_n 7)))} assume i <= n * 4; {929#(and (or (< 7 main_n) (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 24) (<= main_n 7)))} is VALID [2019-01-31 14:31:11,699 INFO L273 TraceCheckUtils]: 13: Hoare triple {929#(and (or (< 7 main_n) (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 24) (<= main_n 7)))} assume a[i] != 23;i := i + 4; {930#(and (or (< 7 main_n) (and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (<= (* 4 main_n) main_i))) (or (<= main_n 7) (<= main_i 28)))} is VALID [2019-01-31 14:31:11,709 INFO L273 TraceCheckUtils]: 14: Hoare triple {930#(and (or (< 7 main_n) (and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (<= (* 4 main_n) main_i))) (or (<= main_n 7) (<= main_i 28)))} assume i <= n * 4; {931#(and (or (< 7 main_n) (and (<= (* 4 main_n) main_i) (<= main_i (* 4 main_n)) (= 23 (select main_a main_i)))) (<= main_i 28))} is VALID [2019-01-31 14:31:11,710 INFO L273 TraceCheckUtils]: 15: Hoare triple {931#(and (or (< 7 main_n) (and (<= (* 4 main_n) main_i) (<= main_i (* 4 main_n)) (= 23 (select main_a main_i)))) (<= main_i 28))} assume a[i] != 23;i := i + 4; {932#(and (<= main_i 32) (<= 8 main_n))} is VALID [2019-01-31 14:31:11,711 INFO L273 TraceCheckUtils]: 16: Hoare triple {932#(and (<= main_i 32) (<= 8 main_n))} assume !(i <= n * 4); {922#false} is VALID [2019-01-31 14:31:11,712 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 14:31:11,713 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-31 14:31:11,713 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-01-31 14:31:11,713 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-01-31 14:31:11,713 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-01-31 14:31:11,713 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-31 14:31:11,714 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 14:31:11,732 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-31 14:31:11,732 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2019-01-31 14:31:11,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-31 14:31:11,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-31 14:31:11,768 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-31 14:31:11,802 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 14:31:11,803 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-01-31 14:31:11,807 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-31 14:31:11,807 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2019-01-31 14:31:11,810 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-01-31 14:31:11,810 WARN L398 uantifierElimination]: Input elimination task: ∃ [v_main_a_11]. (and (= (store v_main_a_11 (* 4 main_n) 23) main_a) (= main_i 0)) [2019-01-31 14:31:11,810 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2019-01-31 14:31:12,126 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2019-01-31 14:31:12,128 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-01-31 14:31:12,134 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-31 14:31:12,135 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2019-01-31 14:31:12,137 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-01-31 14:31:12,137 WARN L398 uantifierElimination]: Input elimination task: ∃ [main_a]. (let ((.cse0 (* 4 main_n))) (and (<= main_i 32) (not (= (select main_a 28) 23)) (= 23 (select main_a .cse0)) (<= 28 .cse0))) [2019-01-31 14:31:12,138 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (let ((.cse0 (* 4 main_n))) (and (<= main_i 32) (not (= 28 .cse0)) (<= 28 .cse0))) [2019-01-31 14:31:12,154 INFO L273 TraceCheckUtils]: 0: Hoare triple {921#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {936#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:12,155 INFO L273 TraceCheckUtils]: 1: Hoare triple {936#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {940#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2019-01-31 14:31:12,155 INFO L273 TraceCheckUtils]: 2: Hoare triple {940#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume i <= n * 4; {940#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2019-01-31 14:31:12,156 INFO L273 TraceCheckUtils]: 3: Hoare triple {940#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume a[i] != 23;i := i + 4; {947#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:12,157 INFO L273 TraceCheckUtils]: 4: Hoare triple {947#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {947#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:12,165 INFO L273 TraceCheckUtils]: 5: Hoare triple {947#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {954#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2019-01-31 14:31:12,165 INFO L273 TraceCheckUtils]: 6: Hoare triple {954#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume i <= n * 4; {954#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2019-01-31 14:31:12,166 INFO L273 TraceCheckUtils]: 7: Hoare triple {954#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume a[i] != 23;i := i + 4; {961#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:12,166 INFO L273 TraceCheckUtils]: 8: Hoare triple {961#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {961#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:12,167 INFO L273 TraceCheckUtils]: 9: Hoare triple {961#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {968#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:12,167 INFO L273 TraceCheckUtils]: 10: Hoare triple {968#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {968#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:12,168 INFO L273 TraceCheckUtils]: 11: Hoare triple {968#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {975#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:12,168 INFO L273 TraceCheckUtils]: 12: Hoare triple {975#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {975#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:12,169 INFO L273 TraceCheckUtils]: 13: Hoare triple {975#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {982#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:12,170 INFO L273 TraceCheckUtils]: 14: Hoare triple {982#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {986#(and (= main_i 28) (<= main_i (* 4 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:12,171 INFO L273 TraceCheckUtils]: 15: Hoare triple {986#(and (= main_i 28) (<= main_i (* 4 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {932#(and (<= main_i 32) (<= 8 main_n))} is VALID [2019-01-31 14:31:12,172 INFO L273 TraceCheckUtils]: 16: Hoare triple {932#(and (<= main_i 32) (<= 8 main_n))} assume !(i <= n * 4); {922#false} is VALID [2019-01-31 14:31:12,174 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 14:31:12,174 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2019-01-31 14:31:12,572 INFO L273 TraceCheckUtils]: 16: Hoare triple {993#(<= main_i (* 4 main_n))} assume !(i <= n * 4); {922#false} is VALID [2019-01-31 14:31:12,574 INFO L273 TraceCheckUtils]: 15: Hoare triple {997#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} assume a[i] != 23;i := i + 4; {993#(<= main_i (* 4 main_n))} is VALID [2019-01-31 14:31:12,574 INFO L273 TraceCheckUtils]: 14: Hoare triple {1001#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} assume i <= n * 4; {997#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} is VALID [2019-01-31 14:31:12,576 INFO L273 TraceCheckUtils]: 13: Hoare triple {1005#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume a[i] != 23;i := i + 4; {1001#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} is VALID [2019-01-31 14:31:12,576 INFO L273 TraceCheckUtils]: 12: Hoare triple {1005#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume i <= n * 4; {1005#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2019-01-31 14:31:12,578 INFO L273 TraceCheckUtils]: 11: Hoare triple {1012#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume a[i] != 23;i := i + 4; {1005#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2019-01-31 14:31:12,578 INFO L273 TraceCheckUtils]: 10: Hoare triple {1012#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume i <= n * 4; {1012#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2019-01-31 14:31:12,579 INFO L273 TraceCheckUtils]: 9: Hoare triple {1019#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume a[i] != 23;i := i + 4; {1012#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2019-01-31 14:31:12,580 INFO L273 TraceCheckUtils]: 8: Hoare triple {1019#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume i <= n * 4; {1019#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2019-01-31 14:31:12,581 INFO L273 TraceCheckUtils]: 7: Hoare triple {1026#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume a[i] != 23;i := i + 4; {1019#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2019-01-31 14:31:12,582 INFO L273 TraceCheckUtils]: 6: Hoare triple {1026#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume i <= n * 4; {1026#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2019-01-31 14:31:12,583 INFO L273 TraceCheckUtils]: 5: Hoare triple {1033#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {1026#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2019-01-31 14:31:12,584 INFO L273 TraceCheckUtils]: 4: Hoare triple {1033#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume i <= n * 4; {1033#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2019-01-31 14:31:12,585 INFO L273 TraceCheckUtils]: 3: Hoare triple {1040#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume a[i] != 23;i := i + 4; {1033#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2019-01-31 14:31:12,586 INFO L273 TraceCheckUtils]: 2: Hoare triple {1040#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume i <= n * 4; {1040#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2019-01-31 14:31:12,588 INFO L273 TraceCheckUtils]: 1: Hoare triple {1047#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {1040#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2019-01-31 14:31:12,589 INFO L273 TraceCheckUtils]: 0: Hoare triple {921#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {1047#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2019-01-31 14:31:12,591 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 14:31:12,611 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-01-31 14:31:12,611 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 29 [2019-01-31 14:31:12,611 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-01-31 14:31:12,612 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 17 [2019-01-31 14:31:12,612 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-01-31 14:31:12,612 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 21 states. [2019-01-31 14:31:12,664 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 14:31:12,664 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2019-01-31 14:31:12,664 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2019-01-31 14:31:12,665 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=158, Invalid=772, Unknown=0, NotChecked=0, Total=930 [2019-01-31 14:31:12,665 INFO L87 Difference]: Start difference. First operand 18 states and 18 transitions. Second operand 21 states. [2019-01-31 14:31:13,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 14:31:13,509 INFO L93 Difference]: Finished difference Result 22 states and 22 transitions. [2019-01-31 14:31:13,509 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-01-31 14:31:13,509 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 17 [2019-01-31 14:31:13,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-31 14:31:13,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2019-01-31 14:31:13,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 22 transitions. [2019-01-31 14:31:13,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2019-01-31 14:31:13,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 22 transitions. [2019-01-31 14:31:13,511 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 12 states and 22 transitions. [2019-01-31 14:31:13,535 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 14:31:13,536 INFO L225 Difference]: With dead ends: 22 [2019-01-31 14:31:13,536 INFO L226 Difference]: Without dead ends: 21 [2019-01-31 14:31:13,537 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 216 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=158, Invalid=772, Unknown=0, NotChecked=0, Total=930 [2019-01-31 14:31:13,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2019-01-31 14:31:13,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 20. [2019-01-31 14:31:13,558 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-01-31 14:31:13,558 INFO L82 GeneralOperation]: Start isEquivalent. First operand 21 states. Second operand 20 states. [2019-01-31 14:31:13,558 INFO L74 IsIncluded]: Start isIncluded. First operand 21 states. Second operand 20 states. [2019-01-31 14:31:13,559 INFO L87 Difference]: Start difference. First operand 21 states. Second operand 20 states. [2019-01-31 14:31:13,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 14:31:13,560 INFO L93 Difference]: Finished difference Result 21 states and 21 transitions. [2019-01-31 14:31:13,561 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 21 transitions. [2019-01-31 14:31:13,561 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-31 14:31:13,561 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-01-31 14:31:13,561 INFO L74 IsIncluded]: Start isIncluded. First operand 20 states. Second operand 21 states. [2019-01-31 14:31:13,561 INFO L87 Difference]: Start difference. First operand 20 states. Second operand 21 states. [2019-01-31 14:31:13,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 14:31:13,562 INFO L93 Difference]: Finished difference Result 21 states and 21 transitions. [2019-01-31 14:31:13,563 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 21 transitions. [2019-01-31 14:31:13,563 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-31 14:31:13,563 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-01-31 14:31:13,563 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-01-31 14:31:13,563 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-01-31 14:31:13,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2019-01-31 14:31:13,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 20 transitions. [2019-01-31 14:31:13,564 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 20 transitions. Word has length 17 [2019-01-31 14:31:13,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-31 14:31:13,565 INFO L480 AbstractCegarLoop]: Abstraction has 20 states and 20 transitions. [2019-01-31 14:31:13,565 INFO L481 AbstractCegarLoop]: Interpolant automaton has 21 states. [2019-01-31 14:31:13,565 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 20 transitions. [2019-01-31 14:31:13,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-01-31 14:31:13,565 INFO L394 BasicCegarLoop]: Found error trace [2019-01-31 14:31:13,566 INFO L402 BasicCegarLoop]: trace histogram [9, 8, 1, 1] [2019-01-31 14:31:13,566 INFO L423 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-01-31 14:31:13,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-31 14:31:13,566 INFO L82 PathProgramCache]: Analyzing trace with hash 1758521584, now seen corresponding path program 8 times [2019-01-31 14:31:13,566 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-01-31 14:31:13,567 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-31 14:31:13,567 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-31 14:31:13,567 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-31 14:31:13,567 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-01-31 14:31:13,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-31 14:31:14,124 INFO L273 TraceCheckUtils]: 0: Hoare triple {1153#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {1155#(and (or (<= main_n 8) (<= main_i 0)) (or (<= 0 main_i) (< 8 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:14,125 INFO L273 TraceCheckUtils]: 1: Hoare triple {1155#(and (or (<= main_n 8) (<= main_i 0)) (or (<= 0 main_i) (< 8 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {1156#(and (or (< 8 main_n) (<= 4 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 8) (<= main_i 4)))} is VALID [2019-01-31 14:31:14,126 INFO L273 TraceCheckUtils]: 2: Hoare triple {1156#(and (or (< 8 main_n) (<= 4 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 8) (<= main_i 4)))} assume i <= n * 4; {1156#(and (or (< 8 main_n) (<= 4 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 8) (<= main_i 4)))} is VALID [2019-01-31 14:31:14,128 INFO L273 TraceCheckUtils]: 3: Hoare triple {1156#(and (or (< 8 main_n) (<= 4 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 8) (<= main_i 4)))} assume a[i] != 23;i := i + 4; {1157#(and (or (< 8 main_n) (<= 8 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 8) (<= main_n 8)))} is VALID [2019-01-31 14:31:14,129 INFO L273 TraceCheckUtils]: 4: Hoare triple {1157#(and (or (< 8 main_n) (<= 8 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 8) (<= main_n 8)))} assume i <= n * 4; {1157#(and (or (< 8 main_n) (<= 8 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 8) (<= main_n 8)))} is VALID [2019-01-31 14:31:14,130 INFO L273 TraceCheckUtils]: 5: Hoare triple {1157#(and (or (< 8 main_n) (<= 8 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 8) (<= main_n 8)))} assume a[i] != 23;i := i + 4; {1158#(and (or (<= main_n 8) (<= main_i 12)) (or (< 8 main_n) (<= 12 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:14,131 INFO L273 TraceCheckUtils]: 6: Hoare triple {1158#(and (or (<= main_n 8) (<= main_i 12)) (or (< 8 main_n) (<= 12 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {1158#(and (or (<= main_n 8) (<= main_i 12)) (or (< 8 main_n) (<= 12 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:14,133 INFO L273 TraceCheckUtils]: 7: Hoare triple {1158#(and (or (<= main_n 8) (<= main_i 12)) (or (< 8 main_n) (<= 12 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {1159#(and (or (<= main_n 8) (<= main_i 16)) (or (< 8 main_n) (<= 16 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:14,134 INFO L273 TraceCheckUtils]: 8: Hoare triple {1159#(and (or (<= main_n 8) (<= main_i 16)) (or (< 8 main_n) (<= 16 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {1159#(and (or (<= main_n 8) (<= main_i 16)) (or (< 8 main_n) (<= 16 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:14,135 INFO L273 TraceCheckUtils]: 9: Hoare triple {1159#(and (or (<= main_n 8) (<= main_i 16)) (or (< 8 main_n) (<= 16 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {1160#(and (or (<= main_n 8) (<= main_i 20)) (or (< 8 main_n) (<= 20 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:14,136 INFO L273 TraceCheckUtils]: 10: Hoare triple {1160#(and (or (<= main_n 8) (<= main_i 20)) (or (< 8 main_n) (<= 20 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {1160#(and (or (<= main_n 8) (<= main_i 20)) (or (< 8 main_n) (<= 20 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:14,138 INFO L273 TraceCheckUtils]: 11: Hoare triple {1160#(and (or (<= main_n 8) (<= main_i 20)) (or (< 8 main_n) (<= 20 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {1161#(and (or (<= main_n 8) (<= main_i 24)) (or (< 8 main_n) (<= 24 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:14,139 INFO L273 TraceCheckUtils]: 12: Hoare triple {1161#(and (or (<= main_n 8) (<= main_i 24)) (or (< 8 main_n) (<= 24 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {1161#(and (or (<= main_n 8) (<= main_i 24)) (or (< 8 main_n) (<= 24 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:14,140 INFO L273 TraceCheckUtils]: 13: Hoare triple {1161#(and (or (<= main_n 8) (<= main_i 24)) (or (< 8 main_n) (<= 24 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {1162#(and (or (<= main_n 8) (<= main_i 28)) (or (<= 28 main_i) (< 8 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:14,141 INFO L273 TraceCheckUtils]: 14: Hoare triple {1162#(and (or (<= main_n 8) (<= main_i 28)) (or (<= 28 main_i) (< 8 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {1162#(and (or (<= main_n 8) (<= main_i 28)) (or (<= 28 main_i) (< 8 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:14,143 INFO L273 TraceCheckUtils]: 15: Hoare triple {1162#(and (or (<= main_n 8) (<= main_i 28)) (or (<= 28 main_i) (< 8 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {1163#(and (or (= (* 4 main_n) main_i) (and (or (<= main_i 32) (<= main_n 8)) (or (< 8 main_n) (<= (* 4 main_n) main_i)))) (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))))} is VALID [2019-01-31 14:31:14,146 INFO L273 TraceCheckUtils]: 16: Hoare triple {1163#(and (or (= (* 4 main_n) main_i) (and (or (<= main_i 32) (<= main_n 8)) (or (< 8 main_n) (<= (* 4 main_n) main_i)))) (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))))} assume i <= n * 4; {1164#(and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (or (= (* 4 main_n) main_i) (and (<= main_i 32) (< 8 main_n))))} is VALID [2019-01-31 14:31:14,147 INFO L273 TraceCheckUtils]: 17: Hoare triple {1164#(and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (or (= (* 4 main_n) main_i) (and (<= main_i 32) (< 8 main_n))))} assume a[i] != 23;i := i + 4; {1165#(and (<= main_i 36) (<= 9 main_n))} is VALID [2019-01-31 14:31:14,148 INFO L273 TraceCheckUtils]: 18: Hoare triple {1165#(and (<= main_i 36) (<= 9 main_n))} assume !(i <= n * 4); {1154#false} is VALID [2019-01-31 14:31:14,150 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 14:31:14,150 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-31 14:31:14,151 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-01-31 14:31:14,151 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-01-31 14:31:14,151 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-01-31 14:31:14,151 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-31 14:31:14,151 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 14:31:14,160 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2019-01-31 14:31:14,160 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST2 (IT: FPandBP) [2019-01-31 14:31:14,172 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 9 check-sat command(s) [2019-01-31 14:31:14,172 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-01-31 14:31:14,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-31 14:31:14,177 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-31 14:31:14,195 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 14:31:14,196 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-01-31 14:31:14,202 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-31 14:31:14,202 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2019-01-31 14:31:14,204 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-01-31 14:31:14,205 WARN L398 uantifierElimination]: Input elimination task: ∃ [v_main_a_12]. (and (= (store v_main_a_12 (* 4 main_n) 23) main_a) (= main_i 0)) [2019-01-31 14:31:14,205 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2019-01-31 14:31:14,628 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2019-01-31 14:31:14,630 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-01-31 14:31:14,635 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-31 14:31:14,636 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2019-01-31 14:31:14,638 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-01-31 14:31:14,639 WARN L398 uantifierElimination]: Input elimination task: ∃ [main_a]. (let ((.cse0 (* 4 main_n))) (and (<= main_i 36) (not (= (select main_a 32) 23)) (<= 32 .cse0) (= 23 (select main_a .cse0)))) [2019-01-31 14:31:14,639 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (let ((.cse0 (* 4 main_n))) (and (<= main_i 36) (not (= 32 .cse0)) (<= 32 .cse0))) [2019-01-31 14:31:14,655 INFO L273 TraceCheckUtils]: 0: Hoare triple {1153#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {1169#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:14,656 INFO L273 TraceCheckUtils]: 1: Hoare triple {1169#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {1173#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2019-01-31 14:31:14,659 INFO L273 TraceCheckUtils]: 2: Hoare triple {1173#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume i <= n * 4; {1173#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2019-01-31 14:31:14,665 INFO L273 TraceCheckUtils]: 3: Hoare triple {1173#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume a[i] != 23;i := i + 4; {1180#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:14,666 INFO L273 TraceCheckUtils]: 4: Hoare triple {1180#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {1180#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:14,666 INFO L273 TraceCheckUtils]: 5: Hoare triple {1180#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {1187#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2019-01-31 14:31:14,667 INFO L273 TraceCheckUtils]: 6: Hoare triple {1187#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume i <= n * 4; {1187#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2019-01-31 14:31:14,667 INFO L273 TraceCheckUtils]: 7: Hoare triple {1187#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume a[i] != 23;i := i + 4; {1194#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:14,668 INFO L273 TraceCheckUtils]: 8: Hoare triple {1194#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {1194#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:14,668 INFO L273 TraceCheckUtils]: 9: Hoare triple {1194#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {1201#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:14,669 INFO L273 TraceCheckUtils]: 10: Hoare triple {1201#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {1201#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:14,670 INFO L273 TraceCheckUtils]: 11: Hoare triple {1201#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {1208#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:14,671 INFO L273 TraceCheckUtils]: 12: Hoare triple {1208#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {1208#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:14,672 INFO L273 TraceCheckUtils]: 13: Hoare triple {1208#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {1215#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:14,672 INFO L273 TraceCheckUtils]: 14: Hoare triple {1215#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {1215#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:14,673 INFO L273 TraceCheckUtils]: 15: Hoare triple {1215#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {1222#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:14,674 INFO L273 TraceCheckUtils]: 16: Hoare triple {1222#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {1226#(and (= main_i 32) (<= main_i (* 4 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:14,675 INFO L273 TraceCheckUtils]: 17: Hoare triple {1226#(and (= main_i 32) (<= main_i (* 4 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {1165#(and (<= main_i 36) (<= 9 main_n))} is VALID [2019-01-31 14:31:14,676 INFO L273 TraceCheckUtils]: 18: Hoare triple {1165#(and (<= main_i 36) (<= 9 main_n))} assume !(i <= n * 4); {1154#false} is VALID [2019-01-31 14:31:14,678 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 14:31:14,678 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2019-01-31 14:31:15,208 INFO L273 TraceCheckUtils]: 18: Hoare triple {1233#(<= main_i (* 4 main_n))} assume !(i <= n * 4); {1154#false} is VALID [2019-01-31 14:31:15,210 INFO L273 TraceCheckUtils]: 17: Hoare triple {1237#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} assume a[i] != 23;i := i + 4; {1233#(<= main_i (* 4 main_n))} is VALID [2019-01-31 14:31:15,210 INFO L273 TraceCheckUtils]: 16: Hoare triple {1241#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} assume i <= n * 4; {1237#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} is VALID [2019-01-31 14:31:15,211 INFO L273 TraceCheckUtils]: 15: Hoare triple {1245#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume a[i] != 23;i := i + 4; {1241#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} is VALID [2019-01-31 14:31:15,211 INFO L273 TraceCheckUtils]: 14: Hoare triple {1245#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume i <= n * 4; {1245#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2019-01-31 14:31:15,212 INFO L273 TraceCheckUtils]: 13: Hoare triple {1252#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume a[i] != 23;i := i + 4; {1245#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2019-01-31 14:31:15,213 INFO L273 TraceCheckUtils]: 12: Hoare triple {1252#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume i <= n * 4; {1252#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2019-01-31 14:31:15,213 INFO L273 TraceCheckUtils]: 11: Hoare triple {1259#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume a[i] != 23;i := i + 4; {1252#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2019-01-31 14:31:15,214 INFO L273 TraceCheckUtils]: 10: Hoare triple {1259#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume i <= n * 4; {1259#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2019-01-31 14:31:15,215 INFO L273 TraceCheckUtils]: 9: Hoare triple {1266#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume a[i] != 23;i := i + 4; {1259#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2019-01-31 14:31:15,216 INFO L273 TraceCheckUtils]: 8: Hoare triple {1266#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume i <= n * 4; {1266#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2019-01-31 14:31:15,217 INFO L273 TraceCheckUtils]: 7: Hoare triple {1273#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {1266#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2019-01-31 14:31:15,217 INFO L273 TraceCheckUtils]: 6: Hoare triple {1273#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume i <= n * 4; {1273#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2019-01-31 14:31:15,219 INFO L273 TraceCheckUtils]: 5: Hoare triple {1280#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume a[i] != 23;i := i + 4; {1273#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2019-01-31 14:31:15,219 INFO L273 TraceCheckUtils]: 4: Hoare triple {1280#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume i <= n * 4; {1280#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2019-01-31 14:31:15,220 INFO L273 TraceCheckUtils]: 3: Hoare triple {1287#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {1280#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2019-01-31 14:31:15,221 INFO L273 TraceCheckUtils]: 2: Hoare triple {1287#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume i <= n * 4; {1287#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2019-01-31 14:31:15,222 INFO L273 TraceCheckUtils]: 1: Hoare triple {1294#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {1287#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2019-01-31 14:31:15,223 INFO L273 TraceCheckUtils]: 0: Hoare triple {1153#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {1294#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2019-01-31 14:31:15,226 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 14:31:15,245 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-01-31 14:31:15,245 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 32 [2019-01-31 14:31:15,245 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-01-31 14:31:15,249 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 19 [2019-01-31 14:31:15,249 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-01-31 14:31:15,249 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 23 states. [2019-01-31 14:31:15,296 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 37 edges. 37 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-01-31 14:31:15,296 INFO L459 AbstractCegarLoop]: Interpolant automaton has 23 states [2019-01-31 14:31:15,296 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2019-01-31 14:31:15,296 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=184, Invalid=938, Unknown=0, NotChecked=0, Total=1122 [2019-01-31 14:31:15,297 INFO L87 Difference]: Start difference. First operand 20 states and 20 transitions. Second operand 23 states. [2019-01-31 14:31:15,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 14:31:15,916 INFO L93 Difference]: Finished difference Result 24 states and 24 transitions. [2019-01-31 14:31:15,916 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-01-31 14:31:15,916 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 19 [2019-01-31 14:31:15,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-31 14:31:15,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2019-01-31 14:31:15,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 24 transitions. [2019-01-31 14:31:15,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2019-01-31 14:31:15,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 24 transitions. [2019-01-31 14:31:15,919 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 13 states and 24 transitions. [2019-01-31 14:31:15,944 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 14:31:15,944 INFO L225 Difference]: With dead ends: 24 [2019-01-31 14:31:15,945 INFO L226 Difference]: Without dead ends: 23 [2019-01-31 14:31:15,946 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 260 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=184, Invalid=938, Unknown=0, NotChecked=0, Total=1122 [2019-01-31 14:31:15,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2019-01-31 14:31:15,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 22. [2019-01-31 14:31:15,969 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-01-31 14:31:15,969 INFO L82 GeneralOperation]: Start isEquivalent. First operand 23 states. Second operand 22 states. [2019-01-31 14:31:15,969 INFO L74 IsIncluded]: Start isIncluded. First operand 23 states. Second operand 22 states. [2019-01-31 14:31:15,970 INFO L87 Difference]: Start difference. First operand 23 states. Second operand 22 states. [2019-01-31 14:31:15,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 14:31:15,971 INFO L93 Difference]: Finished difference Result 23 states and 23 transitions. [2019-01-31 14:31:15,971 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 23 transitions. [2019-01-31 14:31:15,971 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-31 14:31:15,971 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-01-31 14:31:15,971 INFO L74 IsIncluded]: Start isIncluded. First operand 22 states. Second operand 23 states. [2019-01-31 14:31:15,972 INFO L87 Difference]: Start difference. First operand 22 states. Second operand 23 states. [2019-01-31 14:31:15,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 14:31:15,973 INFO L93 Difference]: Finished difference Result 23 states and 23 transitions. [2019-01-31 14:31:15,973 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 23 transitions. [2019-01-31 14:31:15,973 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-31 14:31:15,973 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-01-31 14:31:15,974 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-01-31 14:31:15,974 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-01-31 14:31:15,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2019-01-31 14:31:15,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 22 transitions. [2019-01-31 14:31:15,975 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 22 transitions. Word has length 19 [2019-01-31 14:31:15,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-31 14:31:15,975 INFO L480 AbstractCegarLoop]: Abstraction has 22 states and 22 transitions. [2019-01-31 14:31:15,975 INFO L481 AbstractCegarLoop]: Interpolant automaton has 23 states. [2019-01-31 14:31:15,976 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 22 transitions. [2019-01-31 14:31:15,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2019-01-31 14:31:15,976 INFO L394 BasicCegarLoop]: Found error trace [2019-01-31 14:31:15,976 INFO L402 BasicCegarLoop]: trace histogram [10, 9, 1, 1] [2019-01-31 14:31:15,976 INFO L423 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-01-31 14:31:15,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-31 14:31:15,977 INFO L82 PathProgramCache]: Analyzing trace with hash 2017095986, now seen corresponding path program 9 times [2019-01-31 14:31:15,977 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-01-31 14:31:15,978 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-31 14:31:15,978 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-01-31 14:31:15,978 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-31 14:31:15,978 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-01-31 14:31:15,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-31 14:31:16,724 INFO L273 TraceCheckUtils]: 0: Hoare triple {1410#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {1412#(and (or (and (<= 0 main_i) (= 23 (select main_a (* 4 main_n)))) (< 9 main_n)) (or (<= main_n 9) (<= main_i 0)))} is VALID [2019-01-31 14:31:16,726 INFO L273 TraceCheckUtils]: 1: Hoare triple {1412#(and (or (and (<= 0 main_i) (= 23 (select main_a (* 4 main_n)))) (< 9 main_n)) (or (<= main_n 9) (<= main_i 0)))} assume a[i] != 23;i := i + 4; {1413#(and (or (<= main_n 9) (<= main_i 4)) (or (< 9 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i))))} is VALID [2019-01-31 14:31:16,727 INFO L273 TraceCheckUtils]: 2: Hoare triple {1413#(and (or (<= main_n 9) (<= main_i 4)) (or (< 9 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i))))} assume i <= n * 4; {1413#(and (or (<= main_n 9) (<= main_i 4)) (or (< 9 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i))))} is VALID [2019-01-31 14:31:16,728 INFO L273 TraceCheckUtils]: 3: Hoare triple {1413#(and (or (<= main_n 9) (<= main_i 4)) (or (< 9 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i))))} assume a[i] != 23;i := i + 4; {1414#(and (or (<= main_i 8) (<= main_n 9)) (or (< 9 main_n) (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:31:16,729 INFO L273 TraceCheckUtils]: 4: Hoare triple {1414#(and (or (<= main_i 8) (<= main_n 9)) (or (< 9 main_n) (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {1414#(and (or (<= main_i 8) (<= main_n 9)) (or (< 9 main_n) (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:31:16,730 INFO L273 TraceCheckUtils]: 5: Hoare triple {1414#(and (or (<= main_i 8) (<= main_n 9)) (or (< 9 main_n) (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {1415#(and (or (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n)))) (< 9 main_n)) (or (<= main_n 9) (<= main_i 12)))} is VALID [2019-01-31 14:31:16,731 INFO L273 TraceCheckUtils]: 6: Hoare triple {1415#(and (or (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n)))) (< 9 main_n)) (or (<= main_n 9) (<= main_i 12)))} assume i <= n * 4; {1415#(and (or (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n)))) (< 9 main_n)) (or (<= main_n 9) (<= main_i 12)))} is VALID [2019-01-31 14:31:16,733 INFO L273 TraceCheckUtils]: 7: Hoare triple {1415#(and (or (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n)))) (< 9 main_n)) (or (<= main_n 9) (<= main_i 12)))} assume a[i] != 23;i := i + 4; {1416#(and (or (< 9 main_n) (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 9) (<= main_i 16)))} is VALID [2019-01-31 14:31:16,733 INFO L273 TraceCheckUtils]: 8: Hoare triple {1416#(and (or (< 9 main_n) (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 9) (<= main_i 16)))} assume i <= n * 4; {1416#(and (or (< 9 main_n) (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 9) (<= main_i 16)))} is VALID [2019-01-31 14:31:16,735 INFO L273 TraceCheckUtils]: 9: Hoare triple {1416#(and (or (< 9 main_n) (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 9) (<= main_i 16)))} assume a[i] != 23;i := i + 4; {1417#(and (or (< 9 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 9) (<= main_i 20)))} is VALID [2019-01-31 14:31:16,736 INFO L273 TraceCheckUtils]: 10: Hoare triple {1417#(and (or (< 9 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 9) (<= main_i 20)))} assume i <= n * 4; {1417#(and (or (< 9 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 9) (<= main_i 20)))} is VALID [2019-01-31 14:31:16,737 INFO L273 TraceCheckUtils]: 11: Hoare triple {1417#(and (or (< 9 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 9) (<= main_i 20)))} assume a[i] != 23;i := i + 4; {1418#(and (or (<= main_n 9) (<= main_i 24)) (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 9 main_n)))} is VALID [2019-01-31 14:31:16,738 INFO L273 TraceCheckUtils]: 12: Hoare triple {1418#(and (or (<= main_n 9) (<= main_i 24)) (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 9 main_n)))} assume i <= n * 4; {1418#(and (or (<= main_n 9) (<= main_i 24)) (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 9 main_n)))} is VALID [2019-01-31 14:31:16,739 INFO L273 TraceCheckUtils]: 13: Hoare triple {1418#(and (or (<= main_n 9) (<= main_i 24)) (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 9 main_n)))} assume a[i] != 23;i := i + 4; {1419#(and (or (<= main_n 9) (<= main_i 28)) (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 9 main_n)))} is VALID [2019-01-31 14:31:16,740 INFO L273 TraceCheckUtils]: 14: Hoare triple {1419#(and (or (<= main_n 9) (<= main_i 28)) (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 9 main_n)))} assume i <= n * 4; {1419#(and (or (<= main_n 9) (<= main_i 28)) (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 9 main_n)))} is VALID [2019-01-31 14:31:16,741 INFO L273 TraceCheckUtils]: 15: Hoare triple {1419#(and (or (<= main_n 9) (<= main_i 28)) (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 9 main_n)))} assume a[i] != 23;i := i + 4; {1420#(and (or (< 9 main_n) (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 32) (<= main_n 9)))} is VALID [2019-01-31 14:31:16,742 INFO L273 TraceCheckUtils]: 16: Hoare triple {1420#(and (or (< 9 main_n) (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 32) (<= main_n 9)))} assume i <= n * 4; {1420#(and (or (< 9 main_n) (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 32) (<= main_n 9)))} is VALID [2019-01-31 14:31:16,745 INFO L273 TraceCheckUtils]: 17: Hoare triple {1420#(and (or (< 9 main_n) (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 32) (<= main_n 9)))} assume a[i] != 23;i := i + 4; {1421#(and (or (and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (<= (* 4 main_n) main_i)) (< 9 main_n)) (or (<= main_i 36) (<= main_n 9)))} is VALID [2019-01-31 14:31:16,746 INFO L273 TraceCheckUtils]: 18: Hoare triple {1421#(and (or (and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (<= (* 4 main_n) main_i)) (< 9 main_n)) (or (<= main_i 36) (<= main_n 9)))} assume i <= n * 4; {1422#(and (<= main_i 36) (or (< 9 main_n) (and (<= (* 4 main_n) main_i) (<= main_i (* 4 main_n)) (= 23 (select main_a main_i)))))} is VALID [2019-01-31 14:31:16,747 INFO L273 TraceCheckUtils]: 19: Hoare triple {1422#(and (<= main_i 36) (or (< 9 main_n) (and (<= (* 4 main_n) main_i) (<= main_i (* 4 main_n)) (= 23 (select main_a main_i)))))} assume a[i] != 23;i := i + 4; {1423#(and (<= main_i 40) (<= 10 main_n))} is VALID [2019-01-31 14:31:16,747 INFO L273 TraceCheckUtils]: 20: Hoare triple {1423#(and (<= main_i 40) (<= 10 main_n))} assume !(i <= n * 4); {1411#false} is VALID [2019-01-31 14:31:16,750 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 14:31:16,750 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-31 14:31:16,751 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-01-31 14:31:16,751 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-01-31 14:31:16,751 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-01-31 14:31:16,751 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-31 14:31:16,751 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 14:31:16,759 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2019-01-31 14:31:16,759 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder TERMS_WITH_SMALL_CONSTANTS_FIRST (IT: FPandBP) [2019-01-31 14:31:16,772 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-01-31 14:31:16,772 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-01-31 14:31:16,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-31 14:31:16,779 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-31 14:31:16,788 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 14:31:16,789 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-01-31 14:31:16,795 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-31 14:31:16,795 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2019-01-31 14:31:16,798 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-01-31 14:31:16,798 WARN L398 uantifierElimination]: Input elimination task: ∃ [v_main_a_13]. (and (= main_a (store v_main_a_13 (* 4 main_n) 23)) (= main_i 0)) [2019-01-31 14:31:16,798 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2019-01-31 14:31:17,190 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2019-01-31 14:31:17,193 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-01-31 14:31:17,202 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-31 14:31:17,202 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2019-01-31 14:31:17,206 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-01-31 14:31:17,207 WARN L398 uantifierElimination]: Input elimination task: ∃ [main_a]. (let ((.cse0 (* 4 main_n))) (and (<= main_i 40) (not (= (select main_a 36) 23)) (= 23 (select main_a .cse0)) (<= 36 .cse0))) [2019-01-31 14:31:17,207 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (let ((.cse0 (* 4 main_n))) (and (<= main_i 40) (not (= 36 .cse0)) (<= 36 .cse0))) [2019-01-31 14:31:17,222 INFO L273 TraceCheckUtils]: 0: Hoare triple {1410#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {1427#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:17,222 INFO L273 TraceCheckUtils]: 1: Hoare triple {1427#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {1431#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2019-01-31 14:31:17,223 INFO L273 TraceCheckUtils]: 2: Hoare triple {1431#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume i <= n * 4; {1431#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2019-01-31 14:31:17,223 INFO L273 TraceCheckUtils]: 3: Hoare triple {1431#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume a[i] != 23;i := i + 4; {1438#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:17,224 INFO L273 TraceCheckUtils]: 4: Hoare triple {1438#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {1438#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:17,225 INFO L273 TraceCheckUtils]: 5: Hoare triple {1438#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {1445#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2019-01-31 14:31:17,226 INFO L273 TraceCheckUtils]: 6: Hoare triple {1445#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume i <= n * 4; {1445#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2019-01-31 14:31:17,227 INFO L273 TraceCheckUtils]: 7: Hoare triple {1445#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume a[i] != 23;i := i + 4; {1452#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:17,227 INFO L273 TraceCheckUtils]: 8: Hoare triple {1452#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {1452#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:17,228 INFO L273 TraceCheckUtils]: 9: Hoare triple {1452#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {1459#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:17,229 INFO L273 TraceCheckUtils]: 10: Hoare triple {1459#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {1459#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:17,230 INFO L273 TraceCheckUtils]: 11: Hoare triple {1459#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {1466#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:17,230 INFO L273 TraceCheckUtils]: 12: Hoare triple {1466#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {1466#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:17,231 INFO L273 TraceCheckUtils]: 13: Hoare triple {1466#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {1473#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:17,232 INFO L273 TraceCheckUtils]: 14: Hoare triple {1473#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {1473#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:17,233 INFO L273 TraceCheckUtils]: 15: Hoare triple {1473#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {1480#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:17,234 INFO L273 TraceCheckUtils]: 16: Hoare triple {1480#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {1480#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:17,235 INFO L273 TraceCheckUtils]: 17: Hoare triple {1480#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {1487#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:17,235 INFO L273 TraceCheckUtils]: 18: Hoare triple {1487#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {1491#(and (= main_i 36) (<= main_i (* 4 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:17,236 INFO L273 TraceCheckUtils]: 19: Hoare triple {1491#(and (= main_i 36) (<= main_i (* 4 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {1423#(and (<= main_i 40) (<= 10 main_n))} is VALID [2019-01-31 14:31:17,237 INFO L273 TraceCheckUtils]: 20: Hoare triple {1423#(and (<= main_i 40) (<= 10 main_n))} assume !(i <= n * 4); {1411#false} is VALID [2019-01-31 14:31:17,239 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 14:31:17,240 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2019-01-31 14:31:17,745 INFO L273 TraceCheckUtils]: 20: Hoare triple {1498#(<= main_i (* 4 main_n))} assume !(i <= n * 4); {1411#false} is VALID [2019-01-31 14:31:17,746 INFO L273 TraceCheckUtils]: 19: Hoare triple {1502#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} assume a[i] != 23;i := i + 4; {1498#(<= main_i (* 4 main_n))} is VALID [2019-01-31 14:31:17,747 INFO L273 TraceCheckUtils]: 18: Hoare triple {1506#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} assume i <= n * 4; {1502#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} is VALID [2019-01-31 14:31:17,748 INFO L273 TraceCheckUtils]: 17: Hoare triple {1510#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume a[i] != 23;i := i + 4; {1506#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} is VALID [2019-01-31 14:31:17,749 INFO L273 TraceCheckUtils]: 16: Hoare triple {1510#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume i <= n * 4; {1510#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2019-01-31 14:31:17,750 INFO L273 TraceCheckUtils]: 15: Hoare triple {1517#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume a[i] != 23;i := i + 4; {1510#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2019-01-31 14:31:17,751 INFO L273 TraceCheckUtils]: 14: Hoare triple {1517#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume i <= n * 4; {1517#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2019-01-31 14:31:17,752 INFO L273 TraceCheckUtils]: 13: Hoare triple {1524#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume a[i] != 23;i := i + 4; {1517#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2019-01-31 14:31:17,752 INFO L273 TraceCheckUtils]: 12: Hoare triple {1524#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume i <= n * 4; {1524#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2019-01-31 14:31:17,754 INFO L273 TraceCheckUtils]: 11: Hoare triple {1531#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume a[i] != 23;i := i + 4; {1524#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2019-01-31 14:31:17,754 INFO L273 TraceCheckUtils]: 10: Hoare triple {1531#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume i <= n * 4; {1531#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2019-01-31 14:31:17,756 INFO L273 TraceCheckUtils]: 9: Hoare triple {1538#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {1531#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2019-01-31 14:31:17,756 INFO L273 TraceCheckUtils]: 8: Hoare triple {1538#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume i <= n * 4; {1538#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2019-01-31 14:31:17,757 INFO L273 TraceCheckUtils]: 7: Hoare triple {1545#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume a[i] != 23;i := i + 4; {1538#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2019-01-31 14:31:17,758 INFO L273 TraceCheckUtils]: 6: Hoare triple {1545#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume i <= n * 4; {1545#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2019-01-31 14:31:17,759 INFO L273 TraceCheckUtils]: 5: Hoare triple {1552#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {1545#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2019-01-31 14:31:17,760 INFO L273 TraceCheckUtils]: 4: Hoare triple {1552#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume i <= n * 4; {1552#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2019-01-31 14:31:17,761 INFO L273 TraceCheckUtils]: 3: Hoare triple {1559#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {1552#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2019-01-31 14:31:17,762 INFO L273 TraceCheckUtils]: 2: Hoare triple {1559#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume i <= n * 4; {1559#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2019-01-31 14:31:17,763 INFO L273 TraceCheckUtils]: 1: Hoare triple {1566#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {1559#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2019-01-31 14:31:17,764 INFO L273 TraceCheckUtils]: 0: Hoare triple {1410#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {1566#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2019-01-31 14:31:17,767 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 14:31:17,787 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-01-31 14:31:17,787 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 35 [2019-01-31 14:31:17,787 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-01-31 14:31:17,787 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 21 [2019-01-31 14:31:17,788 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-01-31 14:31:17,788 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 25 states. [2019-01-31 14:31:17,837 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 14:31:17,838 INFO L459 AbstractCegarLoop]: Interpolant automaton has 25 states [2019-01-31 14:31:17,838 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2019-01-31 14:31:17,839 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=212, Invalid=1120, Unknown=0, NotChecked=0, Total=1332 [2019-01-31 14:31:17,839 INFO L87 Difference]: Start difference. First operand 22 states and 22 transitions. Second operand 25 states. [2019-01-31 14:31:18,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 14:31:18,743 INFO L93 Difference]: Finished difference Result 26 states and 26 transitions. [2019-01-31 14:31:18,744 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2019-01-31 14:31:18,744 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 21 [2019-01-31 14:31:18,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-31 14:31:18,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2019-01-31 14:31:18,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 26 transitions. [2019-01-31 14:31:18,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2019-01-31 14:31:18,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 26 transitions. [2019-01-31 14:31:18,747 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 14 states and 26 transitions. [2019-01-31 14:31:18,775 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 14:31:18,776 INFO L225 Difference]: With dead ends: 26 [2019-01-31 14:31:18,777 INFO L226 Difference]: Without dead ends: 25 [2019-01-31 14:31:18,778 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 16 SyntacticMatches, 1 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 308 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=212, Invalid=1120, Unknown=0, NotChecked=0, Total=1332 [2019-01-31 14:31:18,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2019-01-31 14:31:18,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 24. [2019-01-31 14:31:18,802 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-01-31 14:31:18,802 INFO L82 GeneralOperation]: Start isEquivalent. First operand 25 states. Second operand 24 states. [2019-01-31 14:31:18,803 INFO L74 IsIncluded]: Start isIncluded. First operand 25 states. Second operand 24 states. [2019-01-31 14:31:18,803 INFO L87 Difference]: Start difference. First operand 25 states. Second operand 24 states. [2019-01-31 14:31:18,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 14:31:18,804 INFO L93 Difference]: Finished difference Result 25 states and 25 transitions. [2019-01-31 14:31:18,804 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 25 transitions. [2019-01-31 14:31:18,805 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-31 14:31:18,805 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-01-31 14:31:18,805 INFO L74 IsIncluded]: Start isIncluded. First operand 24 states. Second operand 25 states. [2019-01-31 14:31:18,805 INFO L87 Difference]: Start difference. First operand 24 states. Second operand 25 states. [2019-01-31 14:31:18,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 14:31:18,806 INFO L93 Difference]: Finished difference Result 25 states and 25 transitions. [2019-01-31 14:31:18,806 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 25 transitions. [2019-01-31 14:31:18,806 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-31 14:31:18,806 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-01-31 14:31:18,806 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-01-31 14:31:18,807 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-01-31 14:31:18,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2019-01-31 14:31:18,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 24 transitions. [2019-01-31 14:31:18,807 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 24 transitions. Word has length 21 [2019-01-31 14:31:18,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-31 14:31:18,808 INFO L480 AbstractCegarLoop]: Abstraction has 24 states and 24 transitions. [2019-01-31 14:31:18,808 INFO L481 AbstractCegarLoop]: Interpolant automaton has 25 states. [2019-01-31 14:31:18,808 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 24 transitions. [2019-01-31 14:31:18,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2019-01-31 14:31:18,809 INFO L394 BasicCegarLoop]: Found error trace [2019-01-31 14:31:18,809 INFO L402 BasicCegarLoop]: trace histogram [11, 10, 1, 1] [2019-01-31 14:31:18,809 INFO L423 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-01-31 14:31:18,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-31 14:31:18,809 INFO L82 PathProgramCache]: Analyzing trace with hash 1398993140, now seen corresponding path program 10 times [2019-01-31 14:31:18,809 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-01-31 14:31:18,810 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-31 14:31:18,810 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-01-31 14:31:18,810 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-31 14:31:18,810 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-01-31 14:31:18,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-31 14:31:19,413 INFO L273 TraceCheckUtils]: 0: Hoare triple {1692#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {1694#(and (or (<= main_n 10) (<= main_i 0)) (or (and (<= 0 main_i) (= 23 (select main_a (* 4 main_n)))) (< 10 main_n)))} is VALID [2019-01-31 14:31:19,415 INFO L273 TraceCheckUtils]: 1: Hoare triple {1694#(and (or (<= main_n 10) (<= main_i 0)) (or (and (<= 0 main_i) (= 23 (select main_a (* 4 main_n)))) (< 10 main_n)))} assume a[i] != 23;i := i + 4; {1695#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i)) (< 10 main_n)) (or (<= main_n 10) (<= main_i 4)))} is VALID [2019-01-31 14:31:19,415 INFO L273 TraceCheckUtils]: 2: Hoare triple {1695#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i)) (< 10 main_n)) (or (<= main_n 10) (<= main_i 4)))} assume i <= n * 4; {1695#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i)) (< 10 main_n)) (or (<= main_n 10) (<= main_i 4)))} is VALID [2019-01-31 14:31:19,417 INFO L273 TraceCheckUtils]: 3: Hoare triple {1695#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i)) (< 10 main_n)) (or (<= main_n 10) (<= main_i 4)))} assume a[i] != 23;i := i + 4; {1696#(and (or (<= main_i 8) (<= main_n 10)) (or (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n)))) (< 10 main_n)))} is VALID [2019-01-31 14:31:19,418 INFO L273 TraceCheckUtils]: 4: Hoare triple {1696#(and (or (<= main_i 8) (<= main_n 10)) (or (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n)))) (< 10 main_n)))} assume i <= n * 4; {1696#(and (or (<= main_i 8) (<= main_n 10)) (or (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n)))) (< 10 main_n)))} is VALID [2019-01-31 14:31:19,419 INFO L273 TraceCheckUtils]: 5: Hoare triple {1696#(and (or (<= main_i 8) (<= main_n 10)) (or (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n)))) (< 10 main_n)))} assume a[i] != 23;i := i + 4; {1697#(and (or (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n)))) (< 10 main_n)) (or (<= main_n 10) (<= main_i 12)))} is VALID [2019-01-31 14:31:19,420 INFO L273 TraceCheckUtils]: 6: Hoare triple {1697#(and (or (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n)))) (< 10 main_n)) (or (<= main_n 10) (<= main_i 12)))} assume i <= n * 4; {1697#(and (or (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n)))) (< 10 main_n)) (or (<= main_n 10) (<= main_i 12)))} is VALID [2019-01-31 14:31:19,421 INFO L273 TraceCheckUtils]: 7: Hoare triple {1697#(and (or (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n)))) (< 10 main_n)) (or (<= main_n 10) (<= main_i 12)))} assume a[i] != 23;i := i + 4; {1698#(and (or (<= main_n 10) (<= main_i 16)) (or (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n)))) (< 10 main_n)))} is VALID [2019-01-31 14:31:19,422 INFO L273 TraceCheckUtils]: 8: Hoare triple {1698#(and (or (<= main_n 10) (<= main_i 16)) (or (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n)))) (< 10 main_n)))} assume i <= n * 4; {1698#(and (or (<= main_n 10) (<= main_i 16)) (or (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n)))) (< 10 main_n)))} is VALID [2019-01-31 14:31:19,423 INFO L273 TraceCheckUtils]: 9: Hoare triple {1698#(and (or (<= main_n 10) (<= main_i 16)) (or (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n)))) (< 10 main_n)))} assume a[i] != 23;i := i + 4; {1699#(and (or (< 10 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 10) (<= main_i 20)))} is VALID [2019-01-31 14:31:19,424 INFO L273 TraceCheckUtils]: 10: Hoare triple {1699#(and (or (< 10 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 10) (<= main_i 20)))} assume i <= n * 4; {1699#(and (or (< 10 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 10) (<= main_i 20)))} is VALID [2019-01-31 14:31:19,425 INFO L273 TraceCheckUtils]: 11: Hoare triple {1699#(and (or (< 10 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 10) (<= main_i 20)))} assume a[i] != 23;i := i + 4; {1700#(and (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 10 main_n)) (or (<= main_n 10) (<= main_i 24)))} is VALID [2019-01-31 14:31:19,426 INFO L273 TraceCheckUtils]: 12: Hoare triple {1700#(and (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 10 main_n)) (or (<= main_n 10) (<= main_i 24)))} assume i <= n * 4; {1700#(and (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 10 main_n)) (or (<= main_n 10) (<= main_i 24)))} is VALID [2019-01-31 14:31:19,427 INFO L273 TraceCheckUtils]: 13: Hoare triple {1700#(and (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 10 main_n)) (or (<= main_n 10) (<= main_i 24)))} assume a[i] != 23;i := i + 4; {1701#(and (or (<= main_n 10) (<= main_i 28)) (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 10 main_n)))} is VALID [2019-01-31 14:31:19,430 INFO L273 TraceCheckUtils]: 14: Hoare triple {1701#(and (or (<= main_n 10) (<= main_i 28)) (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 10 main_n)))} assume i <= n * 4; {1701#(and (or (<= main_n 10) (<= main_i 28)) (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 10 main_n)))} is VALID [2019-01-31 14:31:19,431 INFO L273 TraceCheckUtils]: 15: Hoare triple {1701#(and (or (<= main_n 10) (<= main_i 28)) (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 10 main_n)))} assume a[i] != 23;i := i + 4; {1702#(and (or (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n)))) (< 10 main_n)) (or (<= main_i 32) (<= main_n 10)))} is VALID [2019-01-31 14:31:19,431 INFO L273 TraceCheckUtils]: 16: Hoare triple {1702#(and (or (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n)))) (< 10 main_n)) (or (<= main_i 32) (<= main_n 10)))} assume i <= n * 4; {1702#(and (or (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n)))) (< 10 main_n)) (or (<= main_i 32) (<= main_n 10)))} is VALID [2019-01-31 14:31:19,432 INFO L273 TraceCheckUtils]: 17: Hoare triple {1702#(and (or (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n)))) (< 10 main_n)) (or (<= main_i 32) (<= main_n 10)))} assume a[i] != 23;i := i + 4; {1703#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i)) (< 10 main_n)) (or (<= main_i 36) (<= main_n 10)))} is VALID [2019-01-31 14:31:19,432 INFO L273 TraceCheckUtils]: 18: Hoare triple {1703#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i)) (< 10 main_n)) (or (<= main_i 36) (<= main_n 10)))} assume i <= n * 4; {1703#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i)) (< 10 main_n)) (or (<= main_i 36) (<= main_n 10)))} is VALID [2019-01-31 14:31:19,433 INFO L273 TraceCheckUtils]: 19: Hoare triple {1703#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i)) (< 10 main_n)) (or (<= main_i 36) (<= main_n 10)))} assume a[i] != 23;i := i + 4; {1704#(and (or (<= main_i 40) (<= main_n 10)) (or (and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (<= (* 4 main_n) main_i)) (< 10 main_n)))} is VALID [2019-01-31 14:31:19,434 INFO L273 TraceCheckUtils]: 20: Hoare triple {1704#(and (or (<= main_i 40) (<= main_n 10)) (or (and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (<= (* 4 main_n) main_i)) (< 10 main_n)))} assume i <= n * 4; {1705#(and (<= main_i 40) (or (< 10 main_n) (and (<= (* 4 main_n) main_i) (<= main_i (* 4 main_n)) (= 23 (select main_a main_i)))))} is VALID [2019-01-31 14:31:19,435 INFO L273 TraceCheckUtils]: 21: Hoare triple {1705#(and (<= main_i 40) (or (< 10 main_n) (and (<= (* 4 main_n) main_i) (<= main_i (* 4 main_n)) (= 23 (select main_a main_i)))))} assume a[i] != 23;i := i + 4; {1706#(and (< 10 main_n) (<= main_i 44))} is VALID [2019-01-31 14:31:19,436 INFO L273 TraceCheckUtils]: 22: Hoare triple {1706#(and (< 10 main_n) (<= main_i 44))} assume !(i <= n * 4); {1693#false} is VALID [2019-01-31 14:31:19,440 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 14:31:19,440 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-31 14:31:19,440 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-01-31 14:31:19,440 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-01-31 14:31:19,441 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-01-31 14:31:19,441 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-31 14:31:19,441 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 14:31:19,449 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-31 14:31:19,449 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2019-01-31 14:31:19,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-31 14:31:19,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-31 14:31:19,465 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-31 14:31:19,481 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 14:31:19,482 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-01-31 14:31:19,487 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-31 14:31:19,488 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2019-01-31 14:31:19,493 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-01-31 14:31:19,493 WARN L398 uantifierElimination]: Input elimination task: ∃ [v_main_a_14]. (and (= (store v_main_a_14 (* 4 main_n) 23) main_a) (= main_i 0)) [2019-01-31 14:31:19,493 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2019-01-31 14:31:19,986 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2019-01-31 14:31:19,989 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-01-31 14:31:19,995 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-31 14:31:19,995 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2019-01-31 14:31:20,000 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-01-31 14:31:20,000 WARN L398 uantifierElimination]: Input elimination task: ∃ [main_a]. (let ((.cse0 (* 4 main_n))) (and (<= 40 .cse0) (not (= (select main_a 40) 23)) (= 23 (select main_a .cse0)) (<= main_i 44))) [2019-01-31 14:31:20,000 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (let ((.cse0 (* 4 main_n))) (and (<= 40 .cse0) (not (= 40 .cse0)) (<= main_i 44))) [2019-01-31 14:31:20,019 INFO L273 TraceCheckUtils]: 0: Hoare triple {1692#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {1710#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:20,021 INFO L273 TraceCheckUtils]: 1: Hoare triple {1710#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {1714#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2019-01-31 14:31:20,021 INFO L273 TraceCheckUtils]: 2: Hoare triple {1714#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume i <= n * 4; {1714#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2019-01-31 14:31:20,022 INFO L273 TraceCheckUtils]: 3: Hoare triple {1714#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume a[i] != 23;i := i + 4; {1721#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:20,023 INFO L273 TraceCheckUtils]: 4: Hoare triple {1721#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {1721#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:20,024 INFO L273 TraceCheckUtils]: 5: Hoare triple {1721#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {1728#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2019-01-31 14:31:20,028 INFO L273 TraceCheckUtils]: 6: Hoare triple {1728#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume i <= n * 4; {1728#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2019-01-31 14:31:20,030 INFO L273 TraceCheckUtils]: 7: Hoare triple {1728#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume a[i] != 23;i := i + 4; {1735#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:20,031 INFO L273 TraceCheckUtils]: 8: Hoare triple {1735#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {1735#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:20,031 INFO L273 TraceCheckUtils]: 9: Hoare triple {1735#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {1742#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:20,032 INFO L273 TraceCheckUtils]: 10: Hoare triple {1742#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {1742#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:20,032 INFO L273 TraceCheckUtils]: 11: Hoare triple {1742#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {1749#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:20,033 INFO L273 TraceCheckUtils]: 12: Hoare triple {1749#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {1749#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:20,034 INFO L273 TraceCheckUtils]: 13: Hoare triple {1749#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {1756#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:20,034 INFO L273 TraceCheckUtils]: 14: Hoare triple {1756#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {1756#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:20,035 INFO L273 TraceCheckUtils]: 15: Hoare triple {1756#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {1763#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:20,036 INFO L273 TraceCheckUtils]: 16: Hoare triple {1763#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {1763#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:20,037 INFO L273 TraceCheckUtils]: 17: Hoare triple {1763#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {1770#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:20,037 INFO L273 TraceCheckUtils]: 18: Hoare triple {1770#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {1770#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:20,038 INFO L273 TraceCheckUtils]: 19: Hoare triple {1770#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {1777#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:20,039 INFO L273 TraceCheckUtils]: 20: Hoare triple {1777#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {1781#(and (<= main_i (* 4 main_n)) (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:20,040 INFO L273 TraceCheckUtils]: 21: Hoare triple {1781#(and (<= main_i (* 4 main_n)) (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {1706#(and (< 10 main_n) (<= main_i 44))} is VALID [2019-01-31 14:31:20,041 INFO L273 TraceCheckUtils]: 22: Hoare triple {1706#(and (< 10 main_n) (<= main_i 44))} assume !(i <= n * 4); {1693#false} is VALID [2019-01-31 14:31:20,044 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 14:31:20,044 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2019-01-31 14:31:20,665 INFO L273 TraceCheckUtils]: 22: Hoare triple {1788#(<= main_i (* 4 main_n))} assume !(i <= n * 4); {1693#false} is VALID [2019-01-31 14:31:20,666 INFO L273 TraceCheckUtils]: 21: Hoare triple {1792#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} assume a[i] != 23;i := i + 4; {1788#(<= main_i (* 4 main_n))} is VALID [2019-01-31 14:31:20,667 INFO L273 TraceCheckUtils]: 20: Hoare triple {1796#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} assume i <= n * 4; {1792#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} is VALID [2019-01-31 14:31:20,669 INFO L273 TraceCheckUtils]: 19: Hoare triple {1800#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume a[i] != 23;i := i + 4; {1796#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} is VALID [2019-01-31 14:31:20,669 INFO L273 TraceCheckUtils]: 18: Hoare triple {1800#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume i <= n * 4; {1800#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2019-01-31 14:31:20,670 INFO L273 TraceCheckUtils]: 17: Hoare triple {1807#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume a[i] != 23;i := i + 4; {1800#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2019-01-31 14:31:20,671 INFO L273 TraceCheckUtils]: 16: Hoare triple {1807#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume i <= n * 4; {1807#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2019-01-31 14:31:20,672 INFO L273 TraceCheckUtils]: 15: Hoare triple {1814#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume a[i] != 23;i := i + 4; {1807#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2019-01-31 14:31:20,673 INFO L273 TraceCheckUtils]: 14: Hoare triple {1814#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume i <= n * 4; {1814#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2019-01-31 14:31:20,674 INFO L273 TraceCheckUtils]: 13: Hoare triple {1821#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume a[i] != 23;i := i + 4; {1814#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2019-01-31 14:31:20,675 INFO L273 TraceCheckUtils]: 12: Hoare triple {1821#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume i <= n * 4; {1821#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2019-01-31 14:31:20,676 INFO L273 TraceCheckUtils]: 11: Hoare triple {1828#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {1821#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2019-01-31 14:31:20,676 INFO L273 TraceCheckUtils]: 10: Hoare triple {1828#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume i <= n * 4; {1828#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2019-01-31 14:31:20,678 INFO L273 TraceCheckUtils]: 9: Hoare triple {1835#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume a[i] != 23;i := i + 4; {1828#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2019-01-31 14:31:20,678 INFO L273 TraceCheckUtils]: 8: Hoare triple {1835#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume i <= n * 4; {1835#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2019-01-31 14:31:20,679 INFO L273 TraceCheckUtils]: 7: Hoare triple {1842#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {1835#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2019-01-31 14:31:20,680 INFO L273 TraceCheckUtils]: 6: Hoare triple {1842#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume i <= n * 4; {1842#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2019-01-31 14:31:20,681 INFO L273 TraceCheckUtils]: 5: Hoare triple {1849#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {1842#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2019-01-31 14:31:20,682 INFO L273 TraceCheckUtils]: 4: Hoare triple {1849#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume i <= n * 4; {1849#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2019-01-31 14:31:20,683 INFO L273 TraceCheckUtils]: 3: Hoare triple {1856#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {1849#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2019-01-31 14:31:20,684 INFO L273 TraceCheckUtils]: 2: Hoare triple {1856#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume i <= n * 4; {1856#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2019-01-31 14:31:20,685 INFO L273 TraceCheckUtils]: 1: Hoare triple {1863#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} assume a[i] != 23;i := i + 4; {1856#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2019-01-31 14:31:20,686 INFO L273 TraceCheckUtils]: 0: Hoare triple {1692#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {1863#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} is VALID [2019-01-31 14:31:20,690 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 14:31:20,708 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-01-31 14:31:20,708 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 38 [2019-01-31 14:31:20,708 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-01-31 14:31:20,709 INFO L78 Accepts]: Start accepts. Automaton has 27 states. Word has length 23 [2019-01-31 14:31:20,709 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-01-31 14:31:20,709 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 27 states. [2019-01-31 14:31:20,765 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 14:31:20,765 INFO L459 AbstractCegarLoop]: Interpolant automaton has 27 states [2019-01-31 14:31:20,766 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2019-01-31 14:31:20,766 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=242, Invalid=1318, Unknown=0, NotChecked=0, Total=1560 [2019-01-31 14:31:20,767 INFO L87 Difference]: Start difference. First operand 24 states and 24 transitions. Second operand 27 states. [2019-01-31 14:31:21,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 14:31:21,871 INFO L93 Difference]: Finished difference Result 28 states and 28 transitions. [2019-01-31 14:31:21,871 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-01-31 14:31:21,871 INFO L78 Accepts]: Start accepts. Automaton has 27 states. Word has length 23 [2019-01-31 14:31:21,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-31 14:31:21,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2019-01-31 14:31:21,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 28 transitions. [2019-01-31 14:31:21,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2019-01-31 14:31:21,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 28 transitions. [2019-01-31 14:31:21,873 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 15 states and 28 transitions. [2019-01-31 14:31:21,904 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 14:31:21,905 INFO L225 Difference]: With dead ends: 28 [2019-01-31 14:31:21,906 INFO L226 Difference]: Without dead ends: 27 [2019-01-31 14:31:21,907 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 18 SyntacticMatches, 1 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 360 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=242, Invalid=1318, Unknown=0, NotChecked=0, Total=1560 [2019-01-31 14:31:21,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2019-01-31 14:31:21,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 26. [2019-01-31 14:31:21,988 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-01-31 14:31:21,988 INFO L82 GeneralOperation]: Start isEquivalent. First operand 27 states. Second operand 26 states. [2019-01-31 14:31:21,988 INFO L74 IsIncluded]: Start isIncluded. First operand 27 states. Second operand 26 states. [2019-01-31 14:31:21,988 INFO L87 Difference]: Start difference. First operand 27 states. Second operand 26 states. [2019-01-31 14:31:21,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 14:31:21,989 INFO L93 Difference]: Finished difference Result 27 states and 27 transitions. [2019-01-31 14:31:21,989 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 27 transitions. [2019-01-31 14:31:21,989 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-31 14:31:21,989 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-01-31 14:31:21,989 INFO L74 IsIncluded]: Start isIncluded. First operand 26 states. Second operand 27 states. [2019-01-31 14:31:21,989 INFO L87 Difference]: Start difference. First operand 26 states. Second operand 27 states. [2019-01-31 14:31:21,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 14:31:21,990 INFO L93 Difference]: Finished difference Result 27 states and 27 transitions. [2019-01-31 14:31:21,990 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 27 transitions. [2019-01-31 14:31:21,990 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-31 14:31:21,991 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-01-31 14:31:21,991 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-01-31 14:31:21,991 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-01-31 14:31:21,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2019-01-31 14:31:21,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 26 transitions. [2019-01-31 14:31:21,991 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 26 transitions. Word has length 23 [2019-01-31 14:31:21,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-31 14:31:21,993 INFO L480 AbstractCegarLoop]: Abstraction has 26 states and 26 transitions. [2019-01-31 14:31:21,993 INFO L481 AbstractCegarLoop]: Interpolant automaton has 27 states. [2019-01-31 14:31:21,994 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 26 transitions. [2019-01-31 14:31:21,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-01-31 14:31:21,994 INFO L394 BasicCegarLoop]: Found error trace [2019-01-31 14:31:21,994 INFO L402 BasicCegarLoop]: trace histogram [12, 11, 1, 1] [2019-01-31 14:31:21,995 INFO L423 AbstractCegarLoop]: === Iteration 12 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-01-31 14:31:21,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-31 14:31:21,995 INFO L82 PathProgramCache]: Analyzing trace with hash 107644982, now seen corresponding path program 11 times [2019-01-31 14:31:21,995 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-01-31 14:31:21,996 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-31 14:31:21,996 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-31 14:31:21,996 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-31 14:31:21,996 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-01-31 14:31:22,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-31 14:31:22,923 INFO L273 TraceCheckUtils]: 0: Hoare triple {1999#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {2001#(and (or (<= main_i 0) (<= main_n 11)) (or (and (<= 0 main_i) (= 23 (select main_a (* 4 main_n)))) (< 11 main_n)))} is VALID [2019-01-31 14:31:22,924 INFO L273 TraceCheckUtils]: 1: Hoare triple {2001#(and (or (<= main_i 0) (<= main_n 11)) (or (and (<= 0 main_i) (= 23 (select main_a (* 4 main_n)))) (< 11 main_n)))} assume a[i] != 23;i := i + 4; {2002#(and (or (< 11 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i))) (or (<= main_n 11) (<= main_i 4)))} is VALID [2019-01-31 14:31:22,925 INFO L273 TraceCheckUtils]: 2: Hoare triple {2002#(and (or (< 11 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i))) (or (<= main_n 11) (<= main_i 4)))} assume i <= n * 4; {2002#(and (or (< 11 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i))) (or (<= main_n 11) (<= main_i 4)))} is VALID [2019-01-31 14:31:22,927 INFO L273 TraceCheckUtils]: 3: Hoare triple {2002#(and (or (< 11 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i))) (or (<= main_n 11) (<= main_i 4)))} assume a[i] != 23;i := i + 4; {2003#(and (or (<= main_i 8) (<= main_n 11)) (or (< 11 main_n) (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:31:22,927 INFO L273 TraceCheckUtils]: 4: Hoare triple {2003#(and (or (<= main_i 8) (<= main_n 11)) (or (< 11 main_n) (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {2003#(and (or (<= main_i 8) (<= main_n 11)) (or (< 11 main_n) (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:31:22,928 INFO L273 TraceCheckUtils]: 5: Hoare triple {2003#(and (or (<= main_i 8) (<= main_n 11)) (or (< 11 main_n) (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {2004#(and (or (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n)))) (< 11 main_n)) (or (<= main_n 11) (<= main_i 12)))} is VALID [2019-01-31 14:31:22,929 INFO L273 TraceCheckUtils]: 6: Hoare triple {2004#(and (or (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n)))) (< 11 main_n)) (or (<= main_n 11) (<= main_i 12)))} assume i <= n * 4; {2004#(and (or (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n)))) (< 11 main_n)) (or (<= main_n 11) (<= main_i 12)))} is VALID [2019-01-31 14:31:22,930 INFO L273 TraceCheckUtils]: 7: Hoare triple {2004#(and (or (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n)))) (< 11 main_n)) (or (<= main_n 11) (<= main_i 12)))} assume a[i] != 23;i := i + 4; {2005#(and (or (<= main_n 11) (<= main_i 16)) (or (< 11 main_n) (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:31:22,931 INFO L273 TraceCheckUtils]: 8: Hoare triple {2005#(and (or (<= main_n 11) (<= main_i 16)) (or (< 11 main_n) (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {2005#(and (or (<= main_n 11) (<= main_i 16)) (or (< 11 main_n) (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:31:22,932 INFO L273 TraceCheckUtils]: 9: Hoare triple {2005#(and (or (<= main_n 11) (<= main_i 16)) (or (< 11 main_n) (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {2006#(and (or (<= main_i 20) (<= main_n 11)) (or (< 11 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:31:22,933 INFO L273 TraceCheckUtils]: 10: Hoare triple {2006#(and (or (<= main_i 20) (<= main_n 11)) (or (< 11 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {2006#(and (or (<= main_i 20) (<= main_n 11)) (or (< 11 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:31:22,934 INFO L273 TraceCheckUtils]: 11: Hoare triple {2006#(and (or (<= main_i 20) (<= main_n 11)) (or (< 11 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {2007#(and (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 11 main_n)) (or (<= main_i 24) (<= main_n 11)))} is VALID [2019-01-31 14:31:22,935 INFO L273 TraceCheckUtils]: 12: Hoare triple {2007#(and (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 11 main_n)) (or (<= main_i 24) (<= main_n 11)))} assume i <= n * 4; {2007#(and (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 11 main_n)) (or (<= main_i 24) (<= main_n 11)))} is VALID [2019-01-31 14:31:22,936 INFO L273 TraceCheckUtils]: 13: Hoare triple {2007#(and (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 11 main_n)) (or (<= main_i 24) (<= main_n 11)))} assume a[i] != 23;i := i + 4; {2008#(and (or (<= main_n 11) (<= main_i 28)) (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 11 main_n)))} is VALID [2019-01-31 14:31:22,937 INFO L273 TraceCheckUtils]: 14: Hoare triple {2008#(and (or (<= main_n 11) (<= main_i 28)) (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 11 main_n)))} assume i <= n * 4; {2008#(and (or (<= main_n 11) (<= main_i 28)) (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 11 main_n)))} is VALID [2019-01-31 14:31:22,938 INFO L273 TraceCheckUtils]: 15: Hoare triple {2008#(and (or (<= main_n 11) (<= main_i 28)) (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 11 main_n)))} assume a[i] != 23;i := i + 4; {2009#(and (or (<= main_i 32) (<= main_n 11)) (or (< 11 main_n) (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:31:22,939 INFO L273 TraceCheckUtils]: 16: Hoare triple {2009#(and (or (<= main_i 32) (<= main_n 11)) (or (< 11 main_n) (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {2009#(and (or (<= main_i 32) (<= main_n 11)) (or (< 11 main_n) (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:31:22,940 INFO L273 TraceCheckUtils]: 17: Hoare triple {2009#(and (or (<= main_i 32) (<= main_n 11)) (or (< 11 main_n) (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {2010#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i)) (< 11 main_n)) (or (<= main_i 36) (<= main_n 11)))} is VALID [2019-01-31 14:31:22,941 INFO L273 TraceCheckUtils]: 18: Hoare triple {2010#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i)) (< 11 main_n)) (or (<= main_i 36) (<= main_n 11)))} assume i <= n * 4; {2010#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i)) (< 11 main_n)) (or (<= main_i 36) (<= main_n 11)))} is VALID [2019-01-31 14:31:22,942 INFO L273 TraceCheckUtils]: 19: Hoare triple {2010#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i)) (< 11 main_n)) (or (<= main_i 36) (<= main_n 11)))} assume a[i] != 23;i := i + 4; {2011#(and (or (<= main_i 40) (<= main_n 11)) (or (< 11 main_n) (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:31:22,943 INFO L273 TraceCheckUtils]: 20: Hoare triple {2011#(and (or (<= main_i 40) (<= main_n 11)) (or (< 11 main_n) (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {2011#(and (or (<= main_i 40) (<= main_n 11)) (or (< 11 main_n) (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:31:22,944 INFO L273 TraceCheckUtils]: 21: Hoare triple {2011#(and (or (<= main_i 40) (<= main_n 11)) (or (< 11 main_n) (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {2012#(and (or (and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (<= (* 4 main_n) main_i)) (< 11 main_n)) (or (<= main_n 11) (<= main_i 44)))} is VALID [2019-01-31 14:31:22,945 INFO L273 TraceCheckUtils]: 22: Hoare triple {2012#(and (or (and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (<= (* 4 main_n) main_i)) (< 11 main_n)) (or (<= main_n 11) (<= main_i 44)))} assume i <= n * 4; {2013#(and (or (< 11 main_n) (and (<= (* 4 main_n) main_i) (<= main_i (* 4 main_n)) (= 23 (select main_a main_i)))) (<= main_i 44))} is VALID [2019-01-31 14:31:22,946 INFO L273 TraceCheckUtils]: 23: Hoare triple {2013#(and (or (< 11 main_n) (and (<= (* 4 main_n) main_i) (<= main_i (* 4 main_n)) (= 23 (select main_a main_i)))) (<= main_i 44))} assume a[i] != 23;i := i + 4; {2014#(and (< 11 main_n) (<= main_i 48))} is VALID [2019-01-31 14:31:22,947 INFO L273 TraceCheckUtils]: 24: Hoare triple {2014#(and (< 11 main_n) (<= main_i 48))} assume !(i <= n * 4); {2000#false} is VALID [2019-01-31 14:31:22,952 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 14:31:22,952 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-31 14:31:22,952 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-01-31 14:31:22,952 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-01-31 14:31:22,952 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-01-31 14:31:22,952 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-31 14:31:22,952 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 14:31:22,960 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2019-01-31 14:31:22,960 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST2 (IT: FPandBP) [2019-01-31 14:31:22,973 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 12 check-sat command(s) [2019-01-31 14:31:22,973 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-01-31 14:31:22,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-31 14:31:22,983 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-31 14:31:22,996 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 14:31:22,998 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-01-31 14:31:23,007 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-31 14:31:23,007 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2019-01-31 14:31:23,010 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-01-31 14:31:23,010 WARN L398 uantifierElimination]: Input elimination task: ∃ [v_main_a_15]. (and (= main_a (store v_main_a_15 (* 4 main_n) 23)) (= main_i 0)) [2019-01-31 14:31:23,010 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2019-01-31 14:31:23,407 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2019-01-31 14:31:23,409 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-01-31 14:31:23,414 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-31 14:31:23,415 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2019-01-31 14:31:23,417 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-01-31 14:31:23,417 WARN L398 uantifierElimination]: Input elimination task: ∃ [main_a]. (let ((.cse0 (* 4 main_n))) (and (<= 44 .cse0) (not (= (select main_a 44) 23)) (= 23 (select main_a .cse0)) (<= main_i 48))) [2019-01-31 14:31:23,418 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (let ((.cse0 (* 4 main_n))) (and (not (= 44 .cse0)) (<= 44 .cse0) (<= main_i 48))) [2019-01-31 14:31:23,436 INFO L273 TraceCheckUtils]: 0: Hoare triple {1999#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {2018#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:23,436 INFO L273 TraceCheckUtils]: 1: Hoare triple {2018#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {2022#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2019-01-31 14:31:23,437 INFO L273 TraceCheckUtils]: 2: Hoare triple {2022#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume i <= n * 4; {2022#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2019-01-31 14:31:23,437 INFO L273 TraceCheckUtils]: 3: Hoare triple {2022#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume a[i] != 23;i := i + 4; {2029#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:23,438 INFO L273 TraceCheckUtils]: 4: Hoare triple {2029#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {2029#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:23,438 INFO L273 TraceCheckUtils]: 5: Hoare triple {2029#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {2036#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2019-01-31 14:31:23,438 INFO L273 TraceCheckUtils]: 6: Hoare triple {2036#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume i <= n * 4; {2036#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2019-01-31 14:31:23,439 INFO L273 TraceCheckUtils]: 7: Hoare triple {2036#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume a[i] != 23;i := i + 4; {2043#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:23,440 INFO L273 TraceCheckUtils]: 8: Hoare triple {2043#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {2043#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:23,440 INFO L273 TraceCheckUtils]: 9: Hoare triple {2043#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {2050#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:23,441 INFO L273 TraceCheckUtils]: 10: Hoare triple {2050#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {2050#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:23,442 INFO L273 TraceCheckUtils]: 11: Hoare triple {2050#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {2057#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:23,443 INFO L273 TraceCheckUtils]: 12: Hoare triple {2057#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {2057#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:23,443 INFO L273 TraceCheckUtils]: 13: Hoare triple {2057#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {2064#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:23,444 INFO L273 TraceCheckUtils]: 14: Hoare triple {2064#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {2064#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:23,445 INFO L273 TraceCheckUtils]: 15: Hoare triple {2064#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {2071#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:23,446 INFO L273 TraceCheckUtils]: 16: Hoare triple {2071#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {2071#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:23,446 INFO L273 TraceCheckUtils]: 17: Hoare triple {2071#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {2078#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:23,447 INFO L273 TraceCheckUtils]: 18: Hoare triple {2078#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {2078#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:23,448 INFO L273 TraceCheckUtils]: 19: Hoare triple {2078#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {2085#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:23,448 INFO L273 TraceCheckUtils]: 20: Hoare triple {2085#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {2085#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:23,449 INFO L273 TraceCheckUtils]: 21: Hoare triple {2085#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {2092#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:23,450 INFO L273 TraceCheckUtils]: 22: Hoare triple {2092#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {2096#(and (= main_i 44) (<= main_i (* 4 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:23,451 INFO L273 TraceCheckUtils]: 23: Hoare triple {2096#(and (= main_i 44) (<= main_i (* 4 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {2014#(and (< 11 main_n) (<= main_i 48))} is VALID [2019-01-31 14:31:23,452 INFO L273 TraceCheckUtils]: 24: Hoare triple {2014#(and (< 11 main_n) (<= main_i 48))} assume !(i <= n * 4); {2000#false} is VALID [2019-01-31 14:31:23,454 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 14:31:23,454 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2019-01-31 14:31:24,103 INFO L273 TraceCheckUtils]: 24: Hoare triple {2103#(<= main_i (* 4 main_n))} assume !(i <= n * 4); {2000#false} is VALID [2019-01-31 14:31:24,105 INFO L273 TraceCheckUtils]: 23: Hoare triple {2107#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} assume a[i] != 23;i := i + 4; {2103#(<= main_i (* 4 main_n))} is VALID [2019-01-31 14:31:24,106 INFO L273 TraceCheckUtils]: 22: Hoare triple {2111#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} assume i <= n * 4; {2107#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} is VALID [2019-01-31 14:31:24,107 INFO L273 TraceCheckUtils]: 21: Hoare triple {2115#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume a[i] != 23;i := i + 4; {2111#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} is VALID [2019-01-31 14:31:24,107 INFO L273 TraceCheckUtils]: 20: Hoare triple {2115#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume i <= n * 4; {2115#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2019-01-31 14:31:24,108 INFO L273 TraceCheckUtils]: 19: Hoare triple {2122#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume a[i] != 23;i := i + 4; {2115#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2019-01-31 14:31:24,109 INFO L273 TraceCheckUtils]: 18: Hoare triple {2122#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume i <= n * 4; {2122#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2019-01-31 14:31:24,110 INFO L273 TraceCheckUtils]: 17: Hoare triple {2129#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume a[i] != 23;i := i + 4; {2122#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2019-01-31 14:31:24,111 INFO L273 TraceCheckUtils]: 16: Hoare triple {2129#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume i <= n * 4; {2129#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2019-01-31 14:31:24,112 INFO L273 TraceCheckUtils]: 15: Hoare triple {2136#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume a[i] != 23;i := i + 4; {2129#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2019-01-31 14:31:24,113 INFO L273 TraceCheckUtils]: 14: Hoare triple {2136#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume i <= n * 4; {2136#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2019-01-31 14:31:24,114 INFO L273 TraceCheckUtils]: 13: Hoare triple {2143#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {2136#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2019-01-31 14:31:24,114 INFO L273 TraceCheckUtils]: 12: Hoare triple {2143#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume i <= n * 4; {2143#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2019-01-31 14:31:24,116 INFO L273 TraceCheckUtils]: 11: Hoare triple {2150#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume a[i] != 23;i := i + 4; {2143#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2019-01-31 14:31:24,116 INFO L273 TraceCheckUtils]: 10: Hoare triple {2150#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume i <= n * 4; {2150#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2019-01-31 14:31:24,117 INFO L273 TraceCheckUtils]: 9: Hoare triple {2157#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {2150#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2019-01-31 14:31:24,118 INFO L273 TraceCheckUtils]: 8: Hoare triple {2157#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume i <= n * 4; {2157#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2019-01-31 14:31:24,119 INFO L273 TraceCheckUtils]: 7: Hoare triple {2164#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {2157#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2019-01-31 14:31:24,120 INFO L273 TraceCheckUtils]: 6: Hoare triple {2164#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume i <= n * 4; {2164#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2019-01-31 14:31:24,121 INFO L273 TraceCheckUtils]: 5: Hoare triple {2171#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {2164#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2019-01-31 14:31:24,122 INFO L273 TraceCheckUtils]: 4: Hoare triple {2171#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume i <= n * 4; {2171#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2019-01-31 14:31:24,123 INFO L273 TraceCheckUtils]: 3: Hoare triple {2178#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} assume a[i] != 23;i := i + 4; {2171#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2019-01-31 14:31:24,123 INFO L273 TraceCheckUtils]: 2: Hoare triple {2178#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} assume i <= n * 4; {2178#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} is VALID [2019-01-31 14:31:24,125 INFO L273 TraceCheckUtils]: 1: Hoare triple {2185#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {2178#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} is VALID [2019-01-31 14:31:24,126 INFO L273 TraceCheckUtils]: 0: Hoare triple {1999#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {2185#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} is VALID [2019-01-31 14:31:24,130 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 14:31:24,149 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-01-31 14:31:24,149 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14, 14] total 41 [2019-01-31 14:31:24,149 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-01-31 14:31:24,149 INFO L78 Accepts]: Start accepts. Automaton has 29 states. Word has length 25 [2019-01-31 14:31:24,150 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-01-31 14:31:24,150 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 29 states. [2019-01-31 14:31:24,206 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 49 edges. 49 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-01-31 14:31:24,206 INFO L459 AbstractCegarLoop]: Interpolant automaton has 29 states [2019-01-31 14:31:24,206 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2019-01-31 14:31:24,207 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=274, Invalid=1532, Unknown=0, NotChecked=0, Total=1806 [2019-01-31 14:31:24,208 INFO L87 Difference]: Start difference. First operand 26 states and 26 transitions. Second operand 29 states. [2019-01-31 14:31:25,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 14:31:25,232 INFO L93 Difference]: Finished difference Result 30 states and 30 transitions. [2019-01-31 14:31:25,232 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-01-31 14:31:25,233 INFO L78 Accepts]: Start accepts. Automaton has 29 states. Word has length 25 [2019-01-31 14:31:25,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-31 14:31:25,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2019-01-31 14:31:25,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 30 transitions. [2019-01-31 14:31:25,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2019-01-31 14:31:25,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 30 transitions. [2019-01-31 14:31:25,235 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 16 states and 30 transitions. [2019-01-31 14:31:25,265 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 14:31:25,266 INFO L225 Difference]: With dead ends: 30 [2019-01-31 14:31:25,266 INFO L226 Difference]: Without dead ends: 29 [2019-01-31 14:31:25,267 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 20 SyntacticMatches, 1 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 416 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=274, Invalid=1532, Unknown=0, NotChecked=0, Total=1806 [2019-01-31 14:31:25,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2019-01-31 14:31:25,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 28. [2019-01-31 14:31:25,312 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-01-31 14:31:25,312 INFO L82 GeneralOperation]: Start isEquivalent. First operand 29 states. Second operand 28 states. [2019-01-31 14:31:25,312 INFO L74 IsIncluded]: Start isIncluded. First operand 29 states. Second operand 28 states. [2019-01-31 14:31:25,312 INFO L87 Difference]: Start difference. First operand 29 states. Second operand 28 states. [2019-01-31 14:31:25,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 14:31:25,314 INFO L93 Difference]: Finished difference Result 29 states and 29 transitions. [2019-01-31 14:31:25,314 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 29 transitions. [2019-01-31 14:31:25,315 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-31 14:31:25,315 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-01-31 14:31:25,315 INFO L74 IsIncluded]: Start isIncluded. First operand 28 states. Second operand 29 states. [2019-01-31 14:31:25,315 INFO L87 Difference]: Start difference. First operand 28 states. Second operand 29 states. [2019-01-31 14:31:25,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 14:31:25,316 INFO L93 Difference]: Finished difference Result 29 states and 29 transitions. [2019-01-31 14:31:25,316 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 29 transitions. [2019-01-31 14:31:25,316 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-31 14:31:25,316 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-01-31 14:31:25,316 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-01-31 14:31:25,316 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-01-31 14:31:25,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2019-01-31 14:31:25,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 28 transitions. [2019-01-31 14:31:25,317 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 28 transitions. Word has length 25 [2019-01-31 14:31:25,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-31 14:31:25,318 INFO L480 AbstractCegarLoop]: Abstraction has 28 states and 28 transitions. [2019-01-31 14:31:25,318 INFO L481 AbstractCegarLoop]: Interpolant automaton has 29 states. [2019-01-31 14:31:25,318 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 28 transitions. [2019-01-31 14:31:25,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-01-31 14:31:25,318 INFO L394 BasicCegarLoop]: Found error trace [2019-01-31 14:31:25,318 INFO L402 BasicCegarLoop]: trace histogram [13, 12, 1, 1] [2019-01-31 14:31:25,319 INFO L423 AbstractCegarLoop]: === Iteration 13 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-01-31 14:31:25,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-31 14:31:25,319 INFO L82 PathProgramCache]: Analyzing trace with hash 367613688, now seen corresponding path program 12 times [2019-01-31 14:31:25,319 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-01-31 14:31:25,320 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-31 14:31:25,320 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-01-31 14:31:25,320 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-31 14:31:25,320 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-01-31 14:31:25,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-31 14:31:25,724 WARN L181 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 17 [2019-01-31 14:31:26,887 INFO L273 TraceCheckUtils]: 0: Hoare triple {2331#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {2333#(and (or (<= main_i 0) (<= main_n 12)) (= 23 (select main_a (* 4 main_n))) (or (< 12 main_n) (<= 0 main_i)))} is VALID [2019-01-31 14:31:26,888 INFO L273 TraceCheckUtils]: 1: Hoare triple {2333#(and (or (<= main_i 0) (<= main_n 12)) (= 23 (select main_a (* 4 main_n))) (or (< 12 main_n) (<= 0 main_i)))} assume a[i] != 23;i := i + 4; {2334#(and (or (<= main_n 12) (<= main_i 4)) (or (< 12 main_n) (<= 4 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:26,889 INFO L273 TraceCheckUtils]: 2: Hoare triple {2334#(and (or (<= main_n 12) (<= main_i 4)) (or (< 12 main_n) (<= 4 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {2334#(and (or (<= main_n 12) (<= main_i 4)) (or (< 12 main_n) (<= 4 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:26,890 INFO L273 TraceCheckUtils]: 3: Hoare triple {2334#(and (or (<= main_n 12) (<= main_i 4)) (or (< 12 main_n) (<= 4 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {2335#(and (or (< 12 main_n) (<= 8 main_i)) (or (<= main_i 8) (<= main_n 12)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:26,891 INFO L273 TraceCheckUtils]: 4: Hoare triple {2335#(and (or (< 12 main_n) (<= 8 main_i)) (or (<= main_i 8) (<= main_n 12)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {2335#(and (or (< 12 main_n) (<= 8 main_i)) (or (<= main_i 8) (<= main_n 12)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:26,893 INFO L273 TraceCheckUtils]: 5: Hoare triple {2335#(and (or (< 12 main_n) (<= 8 main_i)) (or (<= main_i 8) (<= main_n 12)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {2336#(and (or (< 12 main_n) (<= 12 main_i)) (or (<= main_n 12) (<= main_i 12)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:26,893 INFO L273 TraceCheckUtils]: 6: Hoare triple {2336#(and (or (< 12 main_n) (<= 12 main_i)) (or (<= main_n 12) (<= main_i 12)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {2336#(and (or (< 12 main_n) (<= 12 main_i)) (or (<= main_n 12) (<= main_i 12)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:26,895 INFO L273 TraceCheckUtils]: 7: Hoare triple {2336#(and (or (< 12 main_n) (<= 12 main_i)) (or (<= main_n 12) (<= main_i 12)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {2337#(and (or (<= main_n 12) (<= main_i 16)) (or (< 12 main_n) (<= 16 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:26,896 INFO L273 TraceCheckUtils]: 8: Hoare triple {2337#(and (or (<= main_n 12) (<= main_i 16)) (or (< 12 main_n) (<= 16 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {2337#(and (or (<= main_n 12) (<= main_i 16)) (or (< 12 main_n) (<= 16 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:26,897 INFO L273 TraceCheckUtils]: 9: Hoare triple {2337#(and (or (<= main_n 12) (<= main_i 16)) (or (< 12 main_n) (<= 16 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {2338#(and (or (< 12 main_n) (<= 20 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 20) (<= main_n 12)))} is VALID [2019-01-31 14:31:26,898 INFO L273 TraceCheckUtils]: 10: Hoare triple {2338#(and (or (< 12 main_n) (<= 20 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 20) (<= main_n 12)))} assume i <= n * 4; {2338#(and (or (< 12 main_n) (<= 20 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 20) (<= main_n 12)))} is VALID [2019-01-31 14:31:26,899 INFO L273 TraceCheckUtils]: 11: Hoare triple {2338#(and (or (< 12 main_n) (<= 20 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 20) (<= main_n 12)))} assume a[i] != 23;i := i + 4; {2339#(and (or (<= main_n 12) (<= main_i 24)) (or (< 12 main_n) (<= 24 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:26,900 INFO L273 TraceCheckUtils]: 12: Hoare triple {2339#(and (or (<= main_n 12) (<= main_i 24)) (or (< 12 main_n) (<= 24 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {2339#(and (or (<= main_n 12) (<= main_i 24)) (or (< 12 main_n) (<= 24 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:26,901 INFO L273 TraceCheckUtils]: 13: Hoare triple {2339#(and (or (<= main_n 12) (<= main_i 24)) (or (< 12 main_n) (<= 24 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {2340#(and (or (<= main_n 12) (<= main_i 28)) (or (< 12 main_n) (<= 28 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:26,918 INFO L273 TraceCheckUtils]: 14: Hoare triple {2340#(and (or (<= main_n 12) (<= main_i 28)) (or (< 12 main_n) (<= 28 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {2340#(and (or (<= main_n 12) (<= main_i 28)) (or (< 12 main_n) (<= 28 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:26,919 INFO L273 TraceCheckUtils]: 15: Hoare triple {2340#(and (or (<= main_n 12) (<= main_i 28)) (or (< 12 main_n) (<= 28 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {2341#(and (or (<= main_i 32) (<= main_n 12)) (or (< 12 main_n) (<= 32 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:26,920 INFO L273 TraceCheckUtils]: 16: Hoare triple {2341#(and (or (<= main_i 32) (<= main_n 12)) (or (< 12 main_n) (<= 32 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {2341#(and (or (<= main_i 32) (<= main_n 12)) (or (< 12 main_n) (<= 32 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:26,920 INFO L273 TraceCheckUtils]: 17: Hoare triple {2341#(and (or (<= main_i 32) (<= main_n 12)) (or (< 12 main_n) (<= 32 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {2342#(and (= 23 (select main_a (* 4 main_n))) (or (<= main_i 36) (<= main_n 12)) (or (< 12 main_n) (<= 36 main_i)))} is VALID [2019-01-31 14:31:26,921 INFO L273 TraceCheckUtils]: 18: Hoare triple {2342#(and (= 23 (select main_a (* 4 main_n))) (or (<= main_i 36) (<= main_n 12)) (or (< 12 main_n) (<= 36 main_i)))} assume i <= n * 4; {2342#(and (= 23 (select main_a (* 4 main_n))) (or (<= main_i 36) (<= main_n 12)) (or (< 12 main_n) (<= 36 main_i)))} is VALID [2019-01-31 14:31:26,922 INFO L273 TraceCheckUtils]: 19: Hoare triple {2342#(and (= 23 (select main_a (* 4 main_n))) (or (<= main_i 36) (<= main_n 12)) (or (< 12 main_n) (<= 36 main_i)))} assume a[i] != 23;i := i + 4; {2343#(and (or (< 12 main_n) (<= 40 main_i)) (or (<= main_i 40) (<= main_n 12)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:26,922 INFO L273 TraceCheckUtils]: 20: Hoare triple {2343#(and (or (< 12 main_n) (<= 40 main_i)) (or (<= main_i 40) (<= main_n 12)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {2343#(and (or (< 12 main_n) (<= 40 main_i)) (or (<= main_i 40) (<= main_n 12)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:26,924 INFO L273 TraceCheckUtils]: 21: Hoare triple {2343#(and (or (< 12 main_n) (<= 40 main_i)) (or (<= main_i 40) (<= main_n 12)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {2344#(and (or (< 12 main_n) (<= 44 main_i)) (or (<= main_n 12) (<= main_i 44)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:26,925 INFO L273 TraceCheckUtils]: 22: Hoare triple {2344#(and (or (< 12 main_n) (<= 44 main_i)) (or (<= main_n 12) (<= main_i 44)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {2344#(and (or (< 12 main_n) (<= 44 main_i)) (or (<= main_n 12) (<= main_i 44)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:26,926 INFO L273 TraceCheckUtils]: 23: Hoare triple {2344#(and (or (< 12 main_n) (<= 44 main_i)) (or (<= main_n 12) (<= main_i 44)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {2345#(and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (or (= (* 4 main_n) main_i) (and (or (<= main_n 12) (<= main_i 48)) (or (< 12 main_n) (<= (* 4 main_n) main_i)))))} is VALID [2019-01-31 14:31:26,927 INFO L273 TraceCheckUtils]: 24: Hoare triple {2345#(and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (or (= (* 4 main_n) main_i) (and (or (<= main_n 12) (<= main_i 48)) (or (< 12 main_n) (<= (* 4 main_n) main_i)))))} assume i <= n * 4; {2346#(and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (or (= (* 4 main_n) main_i) (and (< 12 main_n) (<= main_i 48))))} is VALID [2019-01-31 14:31:26,928 INFO L273 TraceCheckUtils]: 25: Hoare triple {2346#(and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (or (= (* 4 main_n) main_i) (and (< 12 main_n) (<= main_i 48))))} assume a[i] != 23;i := i + 4; {2347#(and (<= main_i 52) (<= 13 main_n))} is VALID [2019-01-31 14:31:26,929 INFO L273 TraceCheckUtils]: 26: Hoare triple {2347#(and (<= main_i 52) (<= 13 main_n))} assume !(i <= n * 4); {2332#false} is VALID [2019-01-31 14:31:26,936 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 14:31:26,937 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-31 14:31:26,937 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-01-31 14:31:26,937 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-01-31 14:31:26,937 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-01-31 14:31:26,938 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-31 14:31:26,938 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 14:31:26,955 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2019-01-31 14:31:26,955 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder TERMS_WITH_SMALL_CONSTANTS_FIRST (IT: FPandBP) [2019-01-31 14:31:26,965 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-01-31 14:31:26,965 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-01-31 14:31:26,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-31 14:31:26,976 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-31 14:31:27,000 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 14:31:27,006 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-01-31 14:31:27,016 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-31 14:31:27,016 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2019-01-31 14:31:27,019 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-01-31 14:31:27,019 WARN L398 uantifierElimination]: Input elimination task: ∃ [v_main_a_16]. (and (= main_a (store v_main_a_16 (* 4 main_n) 23)) (= main_i 0)) [2019-01-31 14:31:27,019 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2019-01-31 14:31:27,484 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2019-01-31 14:31:27,485 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-01-31 14:31:27,493 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-31 14:31:27,494 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2019-01-31 14:31:27,496 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-01-31 14:31:27,496 WARN L398 uantifierElimination]: Input elimination task: ∃ [main_a]. (let ((.cse0 (* 4 main_n))) (and (<= main_i 52) (not (= 23 (select main_a 48))) (<= 48 .cse0) (= 23 (select main_a .cse0)))) [2019-01-31 14:31:27,496 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (let ((.cse0 (* 4 main_n))) (and (<= main_i 52) (<= 48 .cse0) (not (= 48 .cse0)))) [2019-01-31 14:31:27,515 INFO L273 TraceCheckUtils]: 0: Hoare triple {2331#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {2351#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:27,516 INFO L273 TraceCheckUtils]: 1: Hoare triple {2351#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {2355#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2019-01-31 14:31:27,517 INFO L273 TraceCheckUtils]: 2: Hoare triple {2355#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume i <= n * 4; {2355#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2019-01-31 14:31:27,517 INFO L273 TraceCheckUtils]: 3: Hoare triple {2355#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume a[i] != 23;i := i + 4; {2362#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:27,517 INFO L273 TraceCheckUtils]: 4: Hoare triple {2362#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {2362#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:27,518 INFO L273 TraceCheckUtils]: 5: Hoare triple {2362#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {2369#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2019-01-31 14:31:27,518 INFO L273 TraceCheckUtils]: 6: Hoare triple {2369#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume i <= n * 4; {2369#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2019-01-31 14:31:27,519 INFO L273 TraceCheckUtils]: 7: Hoare triple {2369#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume a[i] != 23;i := i + 4; {2376#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:27,520 INFO L273 TraceCheckUtils]: 8: Hoare triple {2376#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {2376#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:27,520 INFO L273 TraceCheckUtils]: 9: Hoare triple {2376#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {2383#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:27,521 INFO L273 TraceCheckUtils]: 10: Hoare triple {2383#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {2383#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:27,522 INFO L273 TraceCheckUtils]: 11: Hoare triple {2383#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {2390#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:27,523 INFO L273 TraceCheckUtils]: 12: Hoare triple {2390#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {2390#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:27,523 INFO L273 TraceCheckUtils]: 13: Hoare triple {2390#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {2397#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:27,524 INFO L273 TraceCheckUtils]: 14: Hoare triple {2397#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {2397#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:27,525 INFO L273 TraceCheckUtils]: 15: Hoare triple {2397#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {2404#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:27,525 INFO L273 TraceCheckUtils]: 16: Hoare triple {2404#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {2404#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:27,526 INFO L273 TraceCheckUtils]: 17: Hoare triple {2404#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {2411#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:27,527 INFO L273 TraceCheckUtils]: 18: Hoare triple {2411#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {2411#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:27,528 INFO L273 TraceCheckUtils]: 19: Hoare triple {2411#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {2418#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:27,528 INFO L273 TraceCheckUtils]: 20: Hoare triple {2418#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {2418#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:27,529 INFO L273 TraceCheckUtils]: 21: Hoare triple {2418#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {2425#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:27,530 INFO L273 TraceCheckUtils]: 22: Hoare triple {2425#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {2425#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:27,531 INFO L273 TraceCheckUtils]: 23: Hoare triple {2425#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {2432#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:27,531 INFO L273 TraceCheckUtils]: 24: Hoare triple {2432#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {2436#(and (= main_i 48) (<= main_i (* 4 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:27,532 INFO L273 TraceCheckUtils]: 25: Hoare triple {2436#(and (= main_i 48) (<= main_i (* 4 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {2347#(and (<= main_i 52) (<= 13 main_n))} is VALID [2019-01-31 14:31:27,533 INFO L273 TraceCheckUtils]: 26: Hoare triple {2347#(and (<= main_i 52) (<= 13 main_n))} assume !(i <= n * 4); {2332#false} is VALID [2019-01-31 14:31:27,536 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 14:31:27,536 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2019-01-31 14:31:28,238 INFO L273 TraceCheckUtils]: 26: Hoare triple {2443#(<= main_i (* 4 main_n))} assume !(i <= n * 4); {2332#false} is VALID [2019-01-31 14:31:28,239 INFO L273 TraceCheckUtils]: 25: Hoare triple {2447#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} assume a[i] != 23;i := i + 4; {2443#(<= main_i (* 4 main_n))} is VALID [2019-01-31 14:31:28,240 INFO L273 TraceCheckUtils]: 24: Hoare triple {2451#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} assume i <= n * 4; {2447#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} is VALID [2019-01-31 14:31:28,241 INFO L273 TraceCheckUtils]: 23: Hoare triple {2455#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume a[i] != 23;i := i + 4; {2451#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} is VALID [2019-01-31 14:31:28,242 INFO L273 TraceCheckUtils]: 22: Hoare triple {2455#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume i <= n * 4; {2455#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2019-01-31 14:31:28,243 INFO L273 TraceCheckUtils]: 21: Hoare triple {2462#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume a[i] != 23;i := i + 4; {2455#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2019-01-31 14:31:28,243 INFO L273 TraceCheckUtils]: 20: Hoare triple {2462#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume i <= n * 4; {2462#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2019-01-31 14:31:28,244 INFO L273 TraceCheckUtils]: 19: Hoare triple {2469#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume a[i] != 23;i := i + 4; {2462#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2019-01-31 14:31:28,245 INFO L273 TraceCheckUtils]: 18: Hoare triple {2469#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume i <= n * 4; {2469#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2019-01-31 14:31:28,246 INFO L273 TraceCheckUtils]: 17: Hoare triple {2476#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume a[i] != 23;i := i + 4; {2469#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2019-01-31 14:31:28,247 INFO L273 TraceCheckUtils]: 16: Hoare triple {2476#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume i <= n * 4; {2476#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2019-01-31 14:31:28,248 INFO L273 TraceCheckUtils]: 15: Hoare triple {2483#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {2476#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2019-01-31 14:31:28,248 INFO L273 TraceCheckUtils]: 14: Hoare triple {2483#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume i <= n * 4; {2483#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2019-01-31 14:31:28,249 INFO L273 TraceCheckUtils]: 13: Hoare triple {2490#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume a[i] != 23;i := i + 4; {2483#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2019-01-31 14:31:28,250 INFO L273 TraceCheckUtils]: 12: Hoare triple {2490#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume i <= n * 4; {2490#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2019-01-31 14:31:28,251 INFO L273 TraceCheckUtils]: 11: Hoare triple {2497#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {2490#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2019-01-31 14:31:28,251 INFO L273 TraceCheckUtils]: 10: Hoare triple {2497#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume i <= n * 4; {2497#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2019-01-31 14:31:28,253 INFO L273 TraceCheckUtils]: 9: Hoare triple {2504#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {2497#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2019-01-31 14:31:28,253 INFO L273 TraceCheckUtils]: 8: Hoare triple {2504#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume i <= n * 4; {2504#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2019-01-31 14:31:28,254 INFO L273 TraceCheckUtils]: 7: Hoare triple {2511#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {2504#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2019-01-31 14:31:28,255 INFO L273 TraceCheckUtils]: 6: Hoare triple {2511#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume i <= n * 4; {2511#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2019-01-31 14:31:28,256 INFO L273 TraceCheckUtils]: 5: Hoare triple {2518#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} assume a[i] != 23;i := i + 4; {2511#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2019-01-31 14:31:28,257 INFO L273 TraceCheckUtils]: 4: Hoare triple {2518#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} assume i <= n * 4; {2518#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} is VALID [2019-01-31 14:31:28,258 INFO L273 TraceCheckUtils]: 3: Hoare triple {2525#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {2518#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} is VALID [2019-01-31 14:31:28,258 INFO L273 TraceCheckUtils]: 2: Hoare triple {2525#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} assume i <= n * 4; {2525#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} is VALID [2019-01-31 14:31:28,259 INFO L273 TraceCheckUtils]: 1: Hoare triple {2532#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {2525#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} is VALID [2019-01-31 14:31:28,261 INFO L273 TraceCheckUtils]: 0: Hoare triple {2331#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {2532#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} is VALID [2019-01-31 14:31:28,265 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 14:31:28,283 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-01-31 14:31:28,283 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15, 15] total 44 [2019-01-31 14:31:28,283 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-01-31 14:31:28,284 INFO L78 Accepts]: Start accepts. Automaton has 31 states. Word has length 27 [2019-01-31 14:31:28,284 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-01-31 14:31:28,284 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 31 states. [2019-01-31 14:31:28,345 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 14:31:28,345 INFO L459 AbstractCegarLoop]: Interpolant automaton has 31 states [2019-01-31 14:31:28,346 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2019-01-31 14:31:28,347 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=308, Invalid=1762, Unknown=0, NotChecked=0, Total=2070 [2019-01-31 14:31:28,347 INFO L87 Difference]: Start difference. First operand 28 states and 28 transitions. Second operand 31 states. [2019-01-31 14:31:30,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 14:31:30,035 INFO L93 Difference]: Finished difference Result 32 states and 32 transitions. [2019-01-31 14:31:30,035 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2019-01-31 14:31:30,035 INFO L78 Accepts]: Start accepts. Automaton has 31 states. Word has length 27 [2019-01-31 14:31:30,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-31 14:31:30,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2019-01-31 14:31:30,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 32 transitions. [2019-01-31 14:31:30,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2019-01-31 14:31:30,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 32 transitions. [2019-01-31 14:31:30,038 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 17 states and 32 transitions. [2019-01-31 14:31:30,071 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 14:31:30,072 INFO L225 Difference]: With dead ends: 32 [2019-01-31 14:31:30,072 INFO L226 Difference]: Without dead ends: 31 [2019-01-31 14:31:30,074 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 22 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 476 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=308, Invalid=1762, Unknown=0, NotChecked=0, Total=2070 [2019-01-31 14:31:30,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2019-01-31 14:31:30,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 30. [2019-01-31 14:31:30,107 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-01-31 14:31:30,107 INFO L82 GeneralOperation]: Start isEquivalent. First operand 31 states. Second operand 30 states. [2019-01-31 14:31:30,107 INFO L74 IsIncluded]: Start isIncluded. First operand 31 states. Second operand 30 states. [2019-01-31 14:31:30,107 INFO L87 Difference]: Start difference. First operand 31 states. Second operand 30 states. [2019-01-31 14:31:30,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 14:31:30,108 INFO L93 Difference]: Finished difference Result 31 states and 31 transitions. [2019-01-31 14:31:30,108 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 31 transitions. [2019-01-31 14:31:30,109 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-31 14:31:30,109 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-01-31 14:31:30,109 INFO L74 IsIncluded]: Start isIncluded. First operand 30 states. Second operand 31 states. [2019-01-31 14:31:30,109 INFO L87 Difference]: Start difference. First operand 30 states. Second operand 31 states. [2019-01-31 14:31:30,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 14:31:30,110 INFO L93 Difference]: Finished difference Result 31 states and 31 transitions. [2019-01-31 14:31:30,110 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 31 transitions. [2019-01-31 14:31:30,110 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-31 14:31:30,110 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-01-31 14:31:30,111 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-01-31 14:31:30,111 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-01-31 14:31:30,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2019-01-31 14:31:30,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 30 transitions. [2019-01-31 14:31:30,111 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 30 transitions. Word has length 27 [2019-01-31 14:31:30,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-31 14:31:30,112 INFO L480 AbstractCegarLoop]: Abstraction has 30 states and 30 transitions. [2019-01-31 14:31:30,112 INFO L481 AbstractCegarLoop]: Interpolant automaton has 31 states. [2019-01-31 14:31:30,112 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 30 transitions. [2019-01-31 14:31:30,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2019-01-31 14:31:30,113 INFO L394 BasicCegarLoop]: Found error trace [2019-01-31 14:31:30,113 INFO L402 BasicCegarLoop]: trace histogram [14, 13, 1, 1] [2019-01-31 14:31:30,113 INFO L423 AbstractCegarLoop]: === Iteration 14 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-01-31 14:31:30,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-31 14:31:30,113 INFO L82 PathProgramCache]: Analyzing trace with hash 1089436986, now seen corresponding path program 13 times [2019-01-31 14:31:30,113 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-01-31 14:31:30,114 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-31 14:31:30,114 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-01-31 14:31:30,114 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-31 14:31:30,114 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-01-31 14:31:30,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-31 14:31:31,006 INFO L273 TraceCheckUtils]: 0: Hoare triple {2688#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {2690#(and (or (and (<= 0 main_i) (= 23 (select main_a (* 4 main_n)))) (< 13 main_n)) (or (<= main_n 13) (<= main_i 0)))} is VALID [2019-01-31 14:31:31,007 INFO L273 TraceCheckUtils]: 1: Hoare triple {2690#(and (or (and (<= 0 main_i) (= 23 (select main_a (* 4 main_n)))) (< 13 main_n)) (or (<= main_n 13) (<= main_i 0)))} assume a[i] != 23;i := i + 4; {2691#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i)) (< 13 main_n)) (or (<= main_n 13) (<= main_i 4)))} is VALID [2019-01-31 14:31:31,008 INFO L273 TraceCheckUtils]: 2: Hoare triple {2691#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i)) (< 13 main_n)) (or (<= main_n 13) (<= main_i 4)))} assume i <= n * 4; {2691#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i)) (< 13 main_n)) (or (<= main_n 13) (<= main_i 4)))} is VALID [2019-01-31 14:31:31,009 INFO L273 TraceCheckUtils]: 3: Hoare triple {2691#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i)) (< 13 main_n)) (or (<= main_n 13) (<= main_i 4)))} assume a[i] != 23;i := i + 4; {2692#(and (or (<= main_i 8) (<= main_n 13)) (or (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n)))) (< 13 main_n)))} is VALID [2019-01-31 14:31:31,010 INFO L273 TraceCheckUtils]: 4: Hoare triple {2692#(and (or (<= main_i 8) (<= main_n 13)) (or (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n)))) (< 13 main_n)))} assume i <= n * 4; {2692#(and (or (<= main_i 8) (<= main_n 13)) (or (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n)))) (< 13 main_n)))} is VALID [2019-01-31 14:31:31,011 INFO L273 TraceCheckUtils]: 5: Hoare triple {2692#(and (or (<= main_i 8) (<= main_n 13)) (or (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n)))) (< 13 main_n)))} assume a[i] != 23;i := i + 4; {2693#(and (or (<= main_n 13) (<= main_i 12)) (or (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n)))) (< 13 main_n)))} is VALID [2019-01-31 14:31:31,012 INFO L273 TraceCheckUtils]: 6: Hoare triple {2693#(and (or (<= main_n 13) (<= main_i 12)) (or (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n)))) (< 13 main_n)))} assume i <= n * 4; {2693#(and (or (<= main_n 13) (<= main_i 12)) (or (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n)))) (< 13 main_n)))} is VALID [2019-01-31 14:31:31,013 INFO L273 TraceCheckUtils]: 7: Hoare triple {2693#(and (or (<= main_n 13) (<= main_i 12)) (or (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n)))) (< 13 main_n)))} assume a[i] != 23;i := i + 4; {2694#(and (or (<= main_n 13) (<= main_i 16)) (or (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n)))) (< 13 main_n)))} is VALID [2019-01-31 14:31:31,013 INFO L273 TraceCheckUtils]: 8: Hoare triple {2694#(and (or (<= main_n 13) (<= main_i 16)) (or (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n)))) (< 13 main_n)))} assume i <= n * 4; {2694#(and (or (<= main_n 13) (<= main_i 16)) (or (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n)))) (< 13 main_n)))} is VALID [2019-01-31 14:31:31,015 INFO L273 TraceCheckUtils]: 9: Hoare triple {2694#(and (or (<= main_n 13) (<= main_i 16)) (or (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n)))) (< 13 main_n)))} assume a[i] != 23;i := i + 4; {2695#(and (or (< 13 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 13) (<= main_i 20)))} is VALID [2019-01-31 14:31:31,015 INFO L273 TraceCheckUtils]: 10: Hoare triple {2695#(and (or (< 13 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 13) (<= main_i 20)))} assume i <= n * 4; {2695#(and (or (< 13 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 13) (<= main_i 20)))} is VALID [2019-01-31 14:31:31,017 INFO L273 TraceCheckUtils]: 11: Hoare triple {2695#(and (or (< 13 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 13) (<= main_i 20)))} assume a[i] != 23;i := i + 4; {2696#(and (or (<= main_n 13) (<= main_i 24)) (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 13 main_n)))} is VALID [2019-01-31 14:31:31,017 INFO L273 TraceCheckUtils]: 12: Hoare triple {2696#(and (or (<= main_n 13) (<= main_i 24)) (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 13 main_n)))} assume i <= n * 4; {2696#(and (or (<= main_n 13) (<= main_i 24)) (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 13 main_n)))} is VALID [2019-01-31 14:31:31,019 INFO L273 TraceCheckUtils]: 13: Hoare triple {2696#(and (or (<= main_n 13) (<= main_i 24)) (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 13 main_n)))} assume a[i] != 23;i := i + 4; {2697#(and (or (<= main_n 13) (<= main_i 28)) (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 13 main_n)))} is VALID [2019-01-31 14:31:31,019 INFO L273 TraceCheckUtils]: 14: Hoare triple {2697#(and (or (<= main_n 13) (<= main_i 28)) (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 13 main_n)))} assume i <= n * 4; {2697#(and (or (<= main_n 13) (<= main_i 28)) (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 13 main_n)))} is VALID [2019-01-31 14:31:31,020 INFO L273 TraceCheckUtils]: 15: Hoare triple {2697#(and (or (<= main_n 13) (<= main_i 28)) (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 13 main_n)))} assume a[i] != 23;i := i + 4; {2698#(and (or (<= main_i 32) (<= main_n 13)) (or (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n)))) (< 13 main_n)))} is VALID [2019-01-31 14:31:31,021 INFO L273 TraceCheckUtils]: 16: Hoare triple {2698#(and (or (<= main_i 32) (<= main_n 13)) (or (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n)))) (< 13 main_n)))} assume i <= n * 4; {2698#(and (or (<= main_i 32) (<= main_n 13)) (or (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n)))) (< 13 main_n)))} is VALID [2019-01-31 14:31:31,022 INFO L273 TraceCheckUtils]: 17: Hoare triple {2698#(and (or (<= main_i 32) (<= main_n 13)) (or (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n)))) (< 13 main_n)))} assume a[i] != 23;i := i + 4; {2699#(and (or (<= main_i 36) (<= main_n 13)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i)) (< 13 main_n)))} is VALID [2019-01-31 14:31:31,023 INFO L273 TraceCheckUtils]: 18: Hoare triple {2699#(and (or (<= main_i 36) (<= main_n 13)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i)) (< 13 main_n)))} assume i <= n * 4; {2699#(and (or (<= main_i 36) (<= main_n 13)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i)) (< 13 main_n)))} is VALID [2019-01-31 14:31:31,024 INFO L273 TraceCheckUtils]: 19: Hoare triple {2699#(and (or (<= main_i 36) (<= main_n 13)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i)) (< 13 main_n)))} assume a[i] != 23;i := i + 4; {2700#(and (or (<= main_i 40) (<= main_n 13)) (or (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n)))) (< 13 main_n)))} is VALID [2019-01-31 14:31:31,025 INFO L273 TraceCheckUtils]: 20: Hoare triple {2700#(and (or (<= main_i 40) (<= main_n 13)) (or (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n)))) (< 13 main_n)))} assume i <= n * 4; {2700#(and (or (<= main_i 40) (<= main_n 13)) (or (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n)))) (< 13 main_n)))} is VALID [2019-01-31 14:31:31,026 INFO L273 TraceCheckUtils]: 21: Hoare triple {2700#(and (or (<= main_i 40) (<= main_n 13)) (or (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n)))) (< 13 main_n)))} assume a[i] != 23;i := i + 4; {2701#(and (or (< 13 main_n) (and (<= 44 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 13) (<= main_i 44)))} is VALID [2019-01-31 14:31:31,027 INFO L273 TraceCheckUtils]: 22: Hoare triple {2701#(and (or (< 13 main_n) (and (<= 44 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 13) (<= main_i 44)))} assume i <= n * 4; {2701#(and (or (< 13 main_n) (and (<= 44 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 13) (<= main_i 44)))} is VALID [2019-01-31 14:31:31,028 INFO L273 TraceCheckUtils]: 23: Hoare triple {2701#(and (or (< 13 main_n) (and (<= 44 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 13) (<= main_i 44)))} assume a[i] != 23;i := i + 4; {2702#(and (or (<= main_n 13) (<= main_i 48)) (or (and (<= 48 main_i) (= 23 (select main_a (* 4 main_n)))) (< 13 main_n)))} is VALID [2019-01-31 14:31:31,029 INFO L273 TraceCheckUtils]: 24: Hoare triple {2702#(and (or (<= main_n 13) (<= main_i 48)) (or (and (<= 48 main_i) (= 23 (select main_a (* 4 main_n)))) (< 13 main_n)))} assume i <= n * 4; {2702#(and (or (<= main_n 13) (<= main_i 48)) (or (and (<= 48 main_i) (= 23 (select main_a (* 4 main_n)))) (< 13 main_n)))} is VALID [2019-01-31 14:31:31,030 INFO L273 TraceCheckUtils]: 25: Hoare triple {2702#(and (or (<= main_n 13) (<= main_i 48)) (or (and (<= 48 main_i) (= 23 (select main_a (* 4 main_n)))) (< 13 main_n)))} assume a[i] != 23;i := i + 4; {2703#(and (or (and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (<= (* 4 main_n) main_i)) (< 13 main_n)) (or (<= main_i 52) (<= main_n 13)))} is VALID [2019-01-31 14:31:31,031 INFO L273 TraceCheckUtils]: 26: Hoare triple {2703#(and (or (and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (<= (* 4 main_n) main_i)) (< 13 main_n)) (or (<= main_i 52) (<= main_n 13)))} assume i <= n * 4; {2704#(and (<= main_i 52) (or (< 13 main_n) (and (<= (* 4 main_n) main_i) (<= main_i (* 4 main_n)) (= 23 (select main_a main_i)))))} is VALID [2019-01-31 14:31:31,032 INFO L273 TraceCheckUtils]: 27: Hoare triple {2704#(and (<= main_i 52) (or (< 13 main_n) (and (<= (* 4 main_n) main_i) (<= main_i (* 4 main_n)) (= 23 (select main_a main_i)))))} assume a[i] != 23;i := i + 4; {2705#(and (<= main_i 56) (< 13 main_n))} is VALID [2019-01-31 14:31:31,033 INFO L273 TraceCheckUtils]: 28: Hoare triple {2705#(and (<= main_i 56) (< 13 main_n))} assume !(i <= n * 4); {2689#false} is VALID [2019-01-31 14:31:31,038 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 14:31:31,038 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-31 14:31:31,038 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-01-31 14:31:31,038 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-01-31 14:31:31,039 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-01-31 14:31:31,039 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-31 14:31:31,039 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 14:31:31,048 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-31 14:31:31,049 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2019-01-31 14:31:31,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-31 14:31:31,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-31 14:31:31,065 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-31 14:31:31,072 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 14:31:31,073 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-01-31 14:31:31,078 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-31 14:31:31,079 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2019-01-31 14:31:31,081 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-01-31 14:31:31,081 WARN L398 uantifierElimination]: Input elimination task: ∃ [v_main_a_17]. (and (= main_i 0) (= main_a (store v_main_a_17 (* 4 main_n) 23))) [2019-01-31 14:31:31,081 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2019-01-31 14:31:31,740 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2019-01-31 14:31:31,748 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-01-31 14:31:31,756 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-31 14:31:31,756 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2019-01-31 14:31:31,758 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-01-31 14:31:31,759 WARN L398 uantifierElimination]: Input elimination task: ∃ [main_a]. (let ((.cse0 (* 4 main_n))) (and (not (= (select main_a 52) 23)) (<= main_i 56) (= 23 (select main_a .cse0)) (<= 52 .cse0))) [2019-01-31 14:31:31,759 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (let ((.cse0 (* 4 main_n))) (and (not (= 52 .cse0)) (<= main_i 56) (<= 52 .cse0))) [2019-01-31 14:31:31,802 INFO L273 TraceCheckUtils]: 0: Hoare triple {2688#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {2709#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:31,804 INFO L273 TraceCheckUtils]: 1: Hoare triple {2709#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {2713#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2019-01-31 14:31:31,807 INFO L273 TraceCheckUtils]: 2: Hoare triple {2713#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume i <= n * 4; {2713#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2019-01-31 14:31:31,807 INFO L273 TraceCheckUtils]: 3: Hoare triple {2713#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume a[i] != 23;i := i + 4; {2720#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:31,809 INFO L273 TraceCheckUtils]: 4: Hoare triple {2720#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {2720#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:31,809 INFO L273 TraceCheckUtils]: 5: Hoare triple {2720#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {2727#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2019-01-31 14:31:31,811 INFO L273 TraceCheckUtils]: 6: Hoare triple {2727#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume i <= n * 4; {2727#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2019-01-31 14:31:31,811 INFO L273 TraceCheckUtils]: 7: Hoare triple {2727#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume a[i] != 23;i := i + 4; {2734#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:31,814 INFO L273 TraceCheckUtils]: 8: Hoare triple {2734#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {2734#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:31,814 INFO L273 TraceCheckUtils]: 9: Hoare triple {2734#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {2741#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:31,816 INFO L273 TraceCheckUtils]: 10: Hoare triple {2741#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {2741#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:31,816 INFO L273 TraceCheckUtils]: 11: Hoare triple {2741#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {2748#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:31,818 INFO L273 TraceCheckUtils]: 12: Hoare triple {2748#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {2748#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:31,818 INFO L273 TraceCheckUtils]: 13: Hoare triple {2748#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {2755#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:31,821 INFO L273 TraceCheckUtils]: 14: Hoare triple {2755#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {2755#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:31,821 INFO L273 TraceCheckUtils]: 15: Hoare triple {2755#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {2762#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:31,824 INFO L273 TraceCheckUtils]: 16: Hoare triple {2762#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {2762#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:31,824 INFO L273 TraceCheckUtils]: 17: Hoare triple {2762#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {2769#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:31,826 INFO L273 TraceCheckUtils]: 18: Hoare triple {2769#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {2769#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:31,826 INFO L273 TraceCheckUtils]: 19: Hoare triple {2769#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {2776#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:31,828 INFO L273 TraceCheckUtils]: 20: Hoare triple {2776#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {2776#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:31,828 INFO L273 TraceCheckUtils]: 21: Hoare triple {2776#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {2783#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:31,830 INFO L273 TraceCheckUtils]: 22: Hoare triple {2783#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {2783#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:31,830 INFO L273 TraceCheckUtils]: 23: Hoare triple {2783#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {2790#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:31,832 INFO L273 TraceCheckUtils]: 24: Hoare triple {2790#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {2790#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:31,832 INFO L273 TraceCheckUtils]: 25: Hoare triple {2790#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {2797#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:31,835 INFO L273 TraceCheckUtils]: 26: Hoare triple {2797#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {2801#(and (= main_i 52) (<= main_i (* 4 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:31,835 INFO L273 TraceCheckUtils]: 27: Hoare triple {2801#(and (= main_i 52) (<= main_i (* 4 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {2705#(and (<= main_i 56) (< 13 main_n))} is VALID [2019-01-31 14:31:31,837 INFO L273 TraceCheckUtils]: 28: Hoare triple {2705#(and (<= main_i 56) (< 13 main_n))} assume !(i <= n * 4); {2689#false} is VALID [2019-01-31 14:31:31,839 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 14:31:31,839 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2019-01-31 14:31:32,700 INFO L273 TraceCheckUtils]: 28: Hoare triple {2808#(<= main_i (* 4 main_n))} assume !(i <= n * 4); {2689#false} is VALID [2019-01-31 14:31:32,701 INFO L273 TraceCheckUtils]: 27: Hoare triple {2812#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} assume a[i] != 23;i := i + 4; {2808#(<= main_i (* 4 main_n))} is VALID [2019-01-31 14:31:32,702 INFO L273 TraceCheckUtils]: 26: Hoare triple {2816#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} assume i <= n * 4; {2812#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} is VALID [2019-01-31 14:31:32,703 INFO L273 TraceCheckUtils]: 25: Hoare triple {2820#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume a[i] != 23;i := i + 4; {2816#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} is VALID [2019-01-31 14:31:32,703 INFO L273 TraceCheckUtils]: 24: Hoare triple {2820#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume i <= n * 4; {2820#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2019-01-31 14:31:32,705 INFO L273 TraceCheckUtils]: 23: Hoare triple {2827#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume a[i] != 23;i := i + 4; {2820#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2019-01-31 14:31:32,705 INFO L273 TraceCheckUtils]: 22: Hoare triple {2827#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume i <= n * 4; {2827#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2019-01-31 14:31:32,706 INFO L273 TraceCheckUtils]: 21: Hoare triple {2834#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume a[i] != 23;i := i + 4; {2827#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2019-01-31 14:31:32,707 INFO L273 TraceCheckUtils]: 20: Hoare triple {2834#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume i <= n * 4; {2834#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2019-01-31 14:31:32,708 INFO L273 TraceCheckUtils]: 19: Hoare triple {2841#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume a[i] != 23;i := i + 4; {2834#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2019-01-31 14:31:32,708 INFO L273 TraceCheckUtils]: 18: Hoare triple {2841#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume i <= n * 4; {2841#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2019-01-31 14:31:32,709 INFO L273 TraceCheckUtils]: 17: Hoare triple {2848#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {2841#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2019-01-31 14:31:32,710 INFO L273 TraceCheckUtils]: 16: Hoare triple {2848#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume i <= n * 4; {2848#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2019-01-31 14:31:32,711 INFO L273 TraceCheckUtils]: 15: Hoare triple {2855#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume a[i] != 23;i := i + 4; {2848#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2019-01-31 14:31:32,712 INFO L273 TraceCheckUtils]: 14: Hoare triple {2855#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume i <= n * 4; {2855#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2019-01-31 14:31:32,713 INFO L273 TraceCheckUtils]: 13: Hoare triple {2862#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {2855#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2019-01-31 14:31:32,713 INFO L273 TraceCheckUtils]: 12: Hoare triple {2862#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume i <= n * 4; {2862#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2019-01-31 14:31:32,714 INFO L273 TraceCheckUtils]: 11: Hoare triple {2869#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {2862#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2019-01-31 14:31:32,715 INFO L273 TraceCheckUtils]: 10: Hoare triple {2869#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume i <= n * 4; {2869#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2019-01-31 14:31:32,716 INFO L273 TraceCheckUtils]: 9: Hoare triple {2876#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {2869#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2019-01-31 14:31:32,717 INFO L273 TraceCheckUtils]: 8: Hoare triple {2876#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume i <= n * 4; {2876#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2019-01-31 14:31:32,718 INFO L273 TraceCheckUtils]: 7: Hoare triple {2883#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} assume a[i] != 23;i := i + 4; {2876#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2019-01-31 14:31:32,718 INFO L273 TraceCheckUtils]: 6: Hoare triple {2883#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} assume i <= n * 4; {2883#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} is VALID [2019-01-31 14:31:32,719 INFO L273 TraceCheckUtils]: 5: Hoare triple {2890#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {2883#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} is VALID [2019-01-31 14:31:32,720 INFO L273 TraceCheckUtils]: 4: Hoare triple {2890#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} assume i <= n * 4; {2890#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} is VALID [2019-01-31 14:31:32,721 INFO L273 TraceCheckUtils]: 3: Hoare triple {2897#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {2890#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} is VALID [2019-01-31 14:31:32,721 INFO L273 TraceCheckUtils]: 2: Hoare triple {2897#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} assume i <= n * 4; {2897#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} is VALID [2019-01-31 14:31:32,723 INFO L273 TraceCheckUtils]: 1: Hoare triple {2904#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} assume a[i] != 23;i := i + 4; {2897#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} is VALID [2019-01-31 14:31:32,724 INFO L273 TraceCheckUtils]: 0: Hoare triple {2688#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {2904#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} is VALID [2019-01-31 14:31:32,728 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 14:31:32,746 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-01-31 14:31:32,746 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16, 16] total 47 [2019-01-31 14:31:32,746 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-01-31 14:31:32,747 INFO L78 Accepts]: Start accepts. Automaton has 33 states. Word has length 29 [2019-01-31 14:31:32,747 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-01-31 14:31:32,747 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 33 states. [2019-01-31 14:31:32,815 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 14:31:32,816 INFO L459 AbstractCegarLoop]: Interpolant automaton has 33 states [2019-01-31 14:31:32,816 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2019-01-31 14:31:32,817 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=344, Invalid=2008, Unknown=0, NotChecked=0, Total=2352 [2019-01-31 14:31:32,818 INFO L87 Difference]: Start difference. First operand 30 states and 30 transitions. Second operand 33 states. [2019-01-31 14:31:34,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 14:31:34,289 INFO L93 Difference]: Finished difference Result 34 states and 34 transitions. [2019-01-31 14:31:34,290 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2019-01-31 14:31:34,290 INFO L78 Accepts]: Start accepts. Automaton has 33 states. Word has length 29 [2019-01-31 14:31:34,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-31 14:31:34,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2019-01-31 14:31:34,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 34 transitions. [2019-01-31 14:31:34,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2019-01-31 14:31:34,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 34 transitions. [2019-01-31 14:31:34,292 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 18 states and 34 transitions. [2019-01-31 14:31:34,333 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 14:31:34,334 INFO L225 Difference]: With dead ends: 34 [2019-01-31 14:31:34,334 INFO L226 Difference]: Without dead ends: 33 [2019-01-31 14:31:34,336 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 24 SyntacticMatches, 1 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 540 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=344, Invalid=2008, Unknown=0, NotChecked=0, Total=2352 [2019-01-31 14:31:34,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2019-01-31 14:31:34,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 32. [2019-01-31 14:31:34,379 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-01-31 14:31:34,379 INFO L82 GeneralOperation]: Start isEquivalent. First operand 33 states. Second operand 32 states. [2019-01-31 14:31:34,379 INFO L74 IsIncluded]: Start isIncluded. First operand 33 states. Second operand 32 states. [2019-01-31 14:31:34,380 INFO L87 Difference]: Start difference. First operand 33 states. Second operand 32 states. [2019-01-31 14:31:34,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 14:31:34,381 INFO L93 Difference]: Finished difference Result 33 states and 33 transitions. [2019-01-31 14:31:34,381 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 33 transitions. [2019-01-31 14:31:34,381 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-31 14:31:34,382 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-01-31 14:31:34,382 INFO L74 IsIncluded]: Start isIncluded. First operand 32 states. Second operand 33 states. [2019-01-31 14:31:34,382 INFO L87 Difference]: Start difference. First operand 32 states. Second operand 33 states. [2019-01-31 14:31:34,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 14:31:34,383 INFO L93 Difference]: Finished difference Result 33 states and 33 transitions. [2019-01-31 14:31:34,383 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 33 transitions. [2019-01-31 14:31:34,383 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-31 14:31:34,383 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-01-31 14:31:34,383 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-01-31 14:31:34,383 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-01-31 14:31:34,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2019-01-31 14:31:34,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 32 transitions. [2019-01-31 14:31:34,384 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 32 transitions. Word has length 29 [2019-01-31 14:31:34,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-31 14:31:34,384 INFO L480 AbstractCegarLoop]: Abstraction has 32 states and 32 transitions. [2019-01-31 14:31:34,385 INFO L481 AbstractCegarLoop]: Interpolant automaton has 33 states. [2019-01-31 14:31:34,385 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 32 transitions. [2019-01-31 14:31:34,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-01-31 14:31:34,385 INFO L394 BasicCegarLoop]: Found error trace [2019-01-31 14:31:34,385 INFO L402 BasicCegarLoop]: trace histogram [15, 14, 1, 1] [2019-01-31 14:31:34,385 INFO L423 AbstractCegarLoop]: === Iteration 15 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-01-31 14:31:34,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-31 14:31:34,386 INFO L82 PathProgramCache]: Analyzing trace with hash -1023075588, now seen corresponding path program 14 times [2019-01-31 14:31:34,386 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-01-31 14:31:34,386 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-31 14:31:34,386 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-31 14:31:34,386 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-31 14:31:34,387 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-01-31 14:31:34,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-31 14:31:34,833 WARN L181 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 17 [2019-01-31 14:31:35,449 INFO L273 TraceCheckUtils]: 0: Hoare triple {3070#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {3072#(and (or (<= 0 main_i) (< 14 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 0) (<= main_n 14)))} is VALID [2019-01-31 14:31:35,468 INFO L273 TraceCheckUtils]: 1: Hoare triple {3072#(and (or (<= 0 main_i) (< 14 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 0) (<= main_n 14)))} assume a[i] != 23;i := i + 4; {3073#(and (or (<= main_n 14) (<= main_i 4)) (or (< 14 main_n) (<= 4 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:35,471 INFO L273 TraceCheckUtils]: 2: Hoare triple {3073#(and (or (<= main_n 14) (<= main_i 4)) (or (< 14 main_n) (<= 4 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {3073#(and (or (<= main_n 14) (<= main_i 4)) (or (< 14 main_n) (<= 4 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:35,472 INFO L273 TraceCheckUtils]: 3: Hoare triple {3073#(and (or (<= main_n 14) (<= main_i 4)) (or (< 14 main_n) (<= 4 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {3074#(and (or (< 14 main_n) (<= 8 main_i)) (or (<= main_i 8) (<= main_n 14)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:35,472 INFO L273 TraceCheckUtils]: 4: Hoare triple {3074#(and (or (< 14 main_n) (<= 8 main_i)) (or (<= main_i 8) (<= main_n 14)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {3074#(and (or (< 14 main_n) (<= 8 main_i)) (or (<= main_i 8) (<= main_n 14)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:35,473 INFO L273 TraceCheckUtils]: 5: Hoare triple {3074#(and (or (< 14 main_n) (<= 8 main_i)) (or (<= main_i 8) (<= main_n 14)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {3075#(and (or (< 14 main_n) (<= 12 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 14) (<= main_i 12)))} is VALID [2019-01-31 14:31:35,473 INFO L273 TraceCheckUtils]: 6: Hoare triple {3075#(and (or (< 14 main_n) (<= 12 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 14) (<= main_i 12)))} assume i <= n * 4; {3075#(and (or (< 14 main_n) (<= 12 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 14) (<= main_i 12)))} is VALID [2019-01-31 14:31:35,474 INFO L273 TraceCheckUtils]: 7: Hoare triple {3075#(and (or (< 14 main_n) (<= 12 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 14) (<= main_i 12)))} assume a[i] != 23;i := i + 4; {3076#(and (or (<= main_n 14) (<= main_i 16)) (= 23 (select main_a (* 4 main_n))) (or (< 14 main_n) (<= 16 main_i)))} is VALID [2019-01-31 14:31:35,474 INFO L273 TraceCheckUtils]: 8: Hoare triple {3076#(and (or (<= main_n 14) (<= main_i 16)) (= 23 (select main_a (* 4 main_n))) (or (< 14 main_n) (<= 16 main_i)))} assume i <= n * 4; {3076#(and (or (<= main_n 14) (<= main_i 16)) (= 23 (select main_a (* 4 main_n))) (or (< 14 main_n) (<= 16 main_i)))} is VALID [2019-01-31 14:31:35,475 INFO L273 TraceCheckUtils]: 9: Hoare triple {3076#(and (or (<= main_n 14) (<= main_i 16)) (= 23 (select main_a (* 4 main_n))) (or (< 14 main_n) (<= 16 main_i)))} assume a[i] != 23;i := i + 4; {3077#(and (or (< 14 main_n) (<= 20 main_i)) (or (<= main_i 20) (<= main_n 14)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:35,476 INFO L273 TraceCheckUtils]: 10: Hoare triple {3077#(and (or (< 14 main_n) (<= 20 main_i)) (or (<= main_i 20) (<= main_n 14)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {3077#(and (or (< 14 main_n) (<= 20 main_i)) (or (<= main_i 20) (<= main_n 14)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:35,477 INFO L273 TraceCheckUtils]: 11: Hoare triple {3077#(and (or (< 14 main_n) (<= 20 main_i)) (or (<= main_i 20) (<= main_n 14)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {3078#(and (or (<= main_n 14) (<= main_i 24)) (or (< 14 main_n) (<= 24 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:35,477 INFO L273 TraceCheckUtils]: 12: Hoare triple {3078#(and (or (<= main_n 14) (<= main_i 24)) (or (< 14 main_n) (<= 24 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {3078#(and (or (<= main_n 14) (<= main_i 24)) (or (< 14 main_n) (<= 24 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:35,478 INFO L273 TraceCheckUtils]: 13: Hoare triple {3078#(and (or (<= main_n 14) (<= main_i 24)) (or (< 14 main_n) (<= 24 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {3079#(and (or (<= 28 main_i) (< 14 main_n)) (or (<= main_n 14) (<= main_i 28)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:35,479 INFO L273 TraceCheckUtils]: 14: Hoare triple {3079#(and (or (<= 28 main_i) (< 14 main_n)) (or (<= main_n 14) (<= main_i 28)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {3079#(and (or (<= 28 main_i) (< 14 main_n)) (or (<= main_n 14) (<= main_i 28)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:35,480 INFO L273 TraceCheckUtils]: 15: Hoare triple {3079#(and (or (<= 28 main_i) (< 14 main_n)) (or (<= main_n 14) (<= main_i 28)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {3080#(and (or (<= 32 main_i) (< 14 main_n)) (or (<= main_i 32) (<= main_n 14)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:35,481 INFO L273 TraceCheckUtils]: 16: Hoare triple {3080#(and (or (<= 32 main_i) (< 14 main_n)) (or (<= main_i 32) (<= main_n 14)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {3080#(and (or (<= 32 main_i) (< 14 main_n)) (or (<= main_i 32) (<= main_n 14)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:35,482 INFO L273 TraceCheckUtils]: 17: Hoare triple {3080#(and (or (<= 32 main_i) (< 14 main_n)) (or (<= main_i 32) (<= main_n 14)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {3081#(and (or (<= main_i 36) (<= main_n 14)) (or (< 14 main_n) (<= 36 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:35,483 INFO L273 TraceCheckUtils]: 18: Hoare triple {3081#(and (or (<= main_i 36) (<= main_n 14)) (or (< 14 main_n) (<= 36 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {3081#(and (or (<= main_i 36) (<= main_n 14)) (or (< 14 main_n) (<= 36 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:35,484 INFO L273 TraceCheckUtils]: 19: Hoare triple {3081#(and (or (<= main_i 36) (<= main_n 14)) (or (< 14 main_n) (<= 36 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {3082#(and (or (<= 40 main_i) (< 14 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 40) (<= main_n 14)))} is VALID [2019-01-31 14:31:35,485 INFO L273 TraceCheckUtils]: 20: Hoare triple {3082#(and (or (<= 40 main_i) (< 14 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 40) (<= main_n 14)))} assume i <= n * 4; {3082#(and (or (<= 40 main_i) (< 14 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 40) (<= main_n 14)))} is VALID [2019-01-31 14:31:35,486 INFO L273 TraceCheckUtils]: 21: Hoare triple {3082#(and (or (<= 40 main_i) (< 14 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 40) (<= main_n 14)))} assume a[i] != 23;i := i + 4; {3083#(and (or (<= 44 main_i) (< 14 main_n)) (or (<= main_n 14) (<= main_i 44)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:35,487 INFO L273 TraceCheckUtils]: 22: Hoare triple {3083#(and (or (<= 44 main_i) (< 14 main_n)) (or (<= main_n 14) (<= main_i 44)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {3083#(and (or (<= 44 main_i) (< 14 main_n)) (or (<= main_n 14) (<= main_i 44)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:35,488 INFO L273 TraceCheckUtils]: 23: Hoare triple {3083#(and (or (<= 44 main_i) (< 14 main_n)) (or (<= main_n 14) (<= main_i 44)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {3084#(and (or (<= 48 main_i) (< 14 main_n)) (or (<= main_n 14) (<= main_i 48)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:35,488 INFO L273 TraceCheckUtils]: 24: Hoare triple {3084#(and (or (<= 48 main_i) (< 14 main_n)) (or (<= main_n 14) (<= main_i 48)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {3084#(and (or (<= 48 main_i) (< 14 main_n)) (or (<= main_n 14) (<= main_i 48)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:35,489 INFO L273 TraceCheckUtils]: 25: Hoare triple {3084#(and (or (<= 48 main_i) (< 14 main_n)) (or (<= main_n 14) (<= main_i 48)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {3085#(and (or (<= main_i 52) (<= main_n 14)) (or (< 14 main_n) (<= 52 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:35,490 INFO L273 TraceCheckUtils]: 26: Hoare triple {3085#(and (or (<= main_i 52) (<= main_n 14)) (or (< 14 main_n) (<= 52 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {3085#(and (or (<= main_i 52) (<= main_n 14)) (or (< 14 main_n) (<= 52 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:35,491 INFO L273 TraceCheckUtils]: 27: Hoare triple {3085#(and (or (<= main_i 52) (<= main_n 14)) (or (< 14 main_n) (<= 52 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {3086#(and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (or (= (* 4 main_n) main_i) (and (or (<= main_n 14) (<= main_i 56)) (or (<= (* 4 main_n) main_i) (< 14 main_n)))))} is VALID [2019-01-31 14:31:35,492 INFO L273 TraceCheckUtils]: 28: Hoare triple {3086#(and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (or (= (* 4 main_n) main_i) (and (or (<= main_n 14) (<= main_i 56)) (or (<= (* 4 main_n) main_i) (< 14 main_n)))))} assume i <= n * 4; {3087#(and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (or (= (* 4 main_n) main_i) (and (< 14 main_n) (<= main_i 56))))} is VALID [2019-01-31 14:31:35,493 INFO L273 TraceCheckUtils]: 29: Hoare triple {3087#(and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (or (= (* 4 main_n) main_i) (and (< 14 main_n) (<= main_i 56))))} assume a[i] != 23;i := i + 4; {3088#(and (<= main_i 60) (<= 15 main_n))} is VALID [2019-01-31 14:31:35,494 INFO L273 TraceCheckUtils]: 30: Hoare triple {3088#(and (<= main_i 60) (<= 15 main_n))} assume !(i <= n * 4); {3071#false} is VALID [2019-01-31 14:31:35,499 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 14:31:35,500 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-31 14:31:35,500 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-01-31 14:31:35,500 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-01-31 14:31:35,500 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-01-31 14:31:35,500 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-31 14:31:35,500 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 14:31:35,513 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2019-01-31 14:31:35,514 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST2 (IT: FPandBP) [2019-01-31 14:31:35,537 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 15 check-sat command(s) [2019-01-31 14:31:35,537 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-01-31 14:31:35,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-31 14:31:35,545 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-31 14:31:35,554 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 14:31:35,556 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-01-31 14:31:35,559 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-31 14:31:35,559 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2019-01-31 14:31:35,562 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-01-31 14:31:35,562 WARN L398 uantifierElimination]: Input elimination task: ∃ [v_main_a_18]. (and (= main_i 0) (= (store v_main_a_18 (* 4 main_n) 23) main_a)) [2019-01-31 14:31:35,562 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2019-01-31 14:31:36,086 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2019-01-31 14:31:36,088 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-01-31 14:31:36,095 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-31 14:31:36,095 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2019-01-31 14:31:36,098 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-01-31 14:31:36,098 WARN L398 uantifierElimination]: Input elimination task: ∃ [main_a]. (let ((.cse0 (* 4 main_n))) (and (<= 56 .cse0) (not (= (select main_a 56) 23)) (<= main_i 60) (= 23 (select main_a .cse0)))) [2019-01-31 14:31:36,098 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (let ((.cse0 (* 4 main_n))) (and (<= 56 .cse0) (<= main_i 60) (not (= 56 .cse0)))) [2019-01-31 14:31:36,118 INFO L273 TraceCheckUtils]: 0: Hoare triple {3070#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {3092#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:36,119 INFO L273 TraceCheckUtils]: 1: Hoare triple {3092#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {3096#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2019-01-31 14:31:36,119 INFO L273 TraceCheckUtils]: 2: Hoare triple {3096#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume i <= n * 4; {3096#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2019-01-31 14:31:36,120 INFO L273 TraceCheckUtils]: 3: Hoare triple {3096#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume a[i] != 23;i := i + 4; {3103#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:36,120 INFO L273 TraceCheckUtils]: 4: Hoare triple {3103#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {3103#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:36,121 INFO L273 TraceCheckUtils]: 5: Hoare triple {3103#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {3110#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2019-01-31 14:31:36,122 INFO L273 TraceCheckUtils]: 6: Hoare triple {3110#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume i <= n * 4; {3110#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2019-01-31 14:31:36,122 INFO L273 TraceCheckUtils]: 7: Hoare triple {3110#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume a[i] != 23;i := i + 4; {3117#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:36,123 INFO L273 TraceCheckUtils]: 8: Hoare triple {3117#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {3117#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:36,124 INFO L273 TraceCheckUtils]: 9: Hoare triple {3117#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {3124#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:36,124 INFO L273 TraceCheckUtils]: 10: Hoare triple {3124#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {3124#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:36,125 INFO L273 TraceCheckUtils]: 11: Hoare triple {3124#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {3131#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:36,126 INFO L273 TraceCheckUtils]: 12: Hoare triple {3131#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {3131#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:36,127 INFO L273 TraceCheckUtils]: 13: Hoare triple {3131#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {3138#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:36,127 INFO L273 TraceCheckUtils]: 14: Hoare triple {3138#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {3138#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:36,128 INFO L273 TraceCheckUtils]: 15: Hoare triple {3138#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {3145#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:36,129 INFO L273 TraceCheckUtils]: 16: Hoare triple {3145#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {3145#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:36,129 INFO L273 TraceCheckUtils]: 17: Hoare triple {3145#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {3152#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:36,130 INFO L273 TraceCheckUtils]: 18: Hoare triple {3152#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {3152#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:36,131 INFO L273 TraceCheckUtils]: 19: Hoare triple {3152#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {3159#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:36,131 INFO L273 TraceCheckUtils]: 20: Hoare triple {3159#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {3159#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:36,132 INFO L273 TraceCheckUtils]: 21: Hoare triple {3159#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {3166#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:36,133 INFO L273 TraceCheckUtils]: 22: Hoare triple {3166#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {3166#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:36,134 INFO L273 TraceCheckUtils]: 23: Hoare triple {3166#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {3173#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:36,134 INFO L273 TraceCheckUtils]: 24: Hoare triple {3173#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {3173#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:36,135 INFO L273 TraceCheckUtils]: 25: Hoare triple {3173#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {3180#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:36,136 INFO L273 TraceCheckUtils]: 26: Hoare triple {3180#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {3180#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:36,136 INFO L273 TraceCheckUtils]: 27: Hoare triple {3180#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {3187#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:36,137 INFO L273 TraceCheckUtils]: 28: Hoare triple {3187#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {3191#(and (= main_i 56) (<= main_i (* 4 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:36,138 INFO L273 TraceCheckUtils]: 29: Hoare triple {3191#(and (= main_i 56) (<= main_i (* 4 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {3088#(and (<= main_i 60) (<= 15 main_n))} is VALID [2019-01-31 14:31:36,139 INFO L273 TraceCheckUtils]: 30: Hoare triple {3088#(and (<= main_i 60) (<= 15 main_n))} assume !(i <= n * 4); {3071#false} is VALID [2019-01-31 14:31:36,143 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 14:31:36,143 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2019-01-31 14:31:37,499 INFO L273 TraceCheckUtils]: 30: Hoare triple {3198#(<= main_i (* 4 main_n))} assume !(i <= n * 4); {3071#false} is VALID [2019-01-31 14:31:37,500 INFO L273 TraceCheckUtils]: 29: Hoare triple {3202#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} assume a[i] != 23;i := i + 4; {3198#(<= main_i (* 4 main_n))} is VALID [2019-01-31 14:31:37,501 INFO L273 TraceCheckUtils]: 28: Hoare triple {3206#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} assume i <= n * 4; {3202#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} is VALID [2019-01-31 14:31:37,501 INFO L273 TraceCheckUtils]: 27: Hoare triple {3210#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume a[i] != 23;i := i + 4; {3206#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} is VALID [2019-01-31 14:31:37,502 INFO L273 TraceCheckUtils]: 26: Hoare triple {3210#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume i <= n * 4; {3210#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2019-01-31 14:31:37,502 INFO L273 TraceCheckUtils]: 25: Hoare triple {3217#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume a[i] != 23;i := i + 4; {3210#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2019-01-31 14:31:37,503 INFO L273 TraceCheckUtils]: 24: Hoare triple {3217#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume i <= n * 4; {3217#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2019-01-31 14:31:37,504 INFO L273 TraceCheckUtils]: 23: Hoare triple {3224#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume a[i] != 23;i := i + 4; {3217#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2019-01-31 14:31:37,504 INFO L273 TraceCheckUtils]: 22: Hoare triple {3224#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume i <= n * 4; {3224#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2019-01-31 14:31:37,505 INFO L273 TraceCheckUtils]: 21: Hoare triple {3231#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume a[i] != 23;i := i + 4; {3224#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2019-01-31 14:31:37,505 INFO L273 TraceCheckUtils]: 20: Hoare triple {3231#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume i <= n * 4; {3231#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2019-01-31 14:31:37,507 INFO L273 TraceCheckUtils]: 19: Hoare triple {3238#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {3231#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2019-01-31 14:31:37,507 INFO L273 TraceCheckUtils]: 18: Hoare triple {3238#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume i <= n * 4; {3238#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2019-01-31 14:31:37,508 INFO L273 TraceCheckUtils]: 17: Hoare triple {3245#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume a[i] != 23;i := i + 4; {3238#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2019-01-31 14:31:37,509 INFO L273 TraceCheckUtils]: 16: Hoare triple {3245#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume i <= n * 4; {3245#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2019-01-31 14:31:37,510 INFO L273 TraceCheckUtils]: 15: Hoare triple {3252#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {3245#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2019-01-31 14:31:37,511 INFO L273 TraceCheckUtils]: 14: Hoare triple {3252#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume i <= n * 4; {3252#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2019-01-31 14:31:37,512 INFO L273 TraceCheckUtils]: 13: Hoare triple {3259#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {3252#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2019-01-31 14:31:37,513 INFO L273 TraceCheckUtils]: 12: Hoare triple {3259#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume i <= n * 4; {3259#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2019-01-31 14:31:37,514 INFO L273 TraceCheckUtils]: 11: Hoare triple {3266#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {3259#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2019-01-31 14:31:37,514 INFO L273 TraceCheckUtils]: 10: Hoare triple {3266#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume i <= n * 4; {3266#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2019-01-31 14:31:37,516 INFO L273 TraceCheckUtils]: 9: Hoare triple {3273#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} assume a[i] != 23;i := i + 4; {3266#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2019-01-31 14:31:37,516 INFO L273 TraceCheckUtils]: 8: Hoare triple {3273#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} assume i <= n * 4; {3273#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} is VALID [2019-01-31 14:31:37,517 INFO L273 TraceCheckUtils]: 7: Hoare triple {3280#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {3273#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} is VALID [2019-01-31 14:31:37,518 INFO L273 TraceCheckUtils]: 6: Hoare triple {3280#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} assume i <= n * 4; {3280#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} is VALID [2019-01-31 14:31:37,519 INFO L273 TraceCheckUtils]: 5: Hoare triple {3287#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {3280#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} is VALID [2019-01-31 14:31:37,520 INFO L273 TraceCheckUtils]: 4: Hoare triple {3287#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} assume i <= n * 4; {3287#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} is VALID [2019-01-31 14:31:37,521 INFO L273 TraceCheckUtils]: 3: Hoare triple {3294#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} assume a[i] != 23;i := i + 4; {3287#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} is VALID [2019-01-31 14:31:37,522 INFO L273 TraceCheckUtils]: 2: Hoare triple {3294#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} assume i <= n * 4; {3294#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} is VALID [2019-01-31 14:31:37,523 INFO L273 TraceCheckUtils]: 1: Hoare triple {3301#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {3294#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} is VALID [2019-01-31 14:31:37,524 INFO L273 TraceCheckUtils]: 0: Hoare triple {3070#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {3301#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} is VALID [2019-01-31 14:31:37,529 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 14:31:37,548 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-01-31 14:31:37,548 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 50 [2019-01-31 14:31:37,548 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-01-31 14:31:37,549 INFO L78 Accepts]: Start accepts. Automaton has 35 states. Word has length 31 [2019-01-31 14:31:37,549 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-01-31 14:31:37,549 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 35 states. [2019-01-31 14:31:37,624 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 61 edges. 61 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-01-31 14:31:37,624 INFO L459 AbstractCegarLoop]: Interpolant automaton has 35 states [2019-01-31 14:31:37,624 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2019-01-31 14:31:37,626 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=382, Invalid=2270, Unknown=0, NotChecked=0, Total=2652 [2019-01-31 14:31:37,626 INFO L87 Difference]: Start difference. First operand 32 states and 32 transitions. Second operand 35 states. [2019-01-31 14:31:38,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 14:31:38,890 INFO L93 Difference]: Finished difference Result 36 states and 36 transitions. [2019-01-31 14:31:38,890 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2019-01-31 14:31:38,890 INFO L78 Accepts]: Start accepts. Automaton has 35 states. Word has length 31 [2019-01-31 14:31:38,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-31 14:31:38,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2019-01-31 14:31:38,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 36 transitions. [2019-01-31 14:31:38,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2019-01-31 14:31:38,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 36 transitions. [2019-01-31 14:31:38,893 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 19 states and 36 transitions. [2019-01-31 14:31:38,934 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 14:31:38,935 INFO L225 Difference]: With dead ends: 36 [2019-01-31 14:31:38,935 INFO L226 Difference]: Without dead ends: 35 [2019-01-31 14:31:38,937 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 26 SyntacticMatches, 1 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 608 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=382, Invalid=2270, Unknown=0, NotChecked=0, Total=2652 [2019-01-31 14:31:38,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2019-01-31 14:31:38,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 34. [2019-01-31 14:31:38,968 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-01-31 14:31:38,968 INFO L82 GeneralOperation]: Start isEquivalent. First operand 35 states. Second operand 34 states. [2019-01-31 14:31:38,968 INFO L74 IsIncluded]: Start isIncluded. First operand 35 states. Second operand 34 states. [2019-01-31 14:31:38,968 INFO L87 Difference]: Start difference. First operand 35 states. Second operand 34 states. [2019-01-31 14:31:38,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 14:31:38,970 INFO L93 Difference]: Finished difference Result 35 states and 35 transitions. [2019-01-31 14:31:38,970 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 35 transitions. [2019-01-31 14:31:38,970 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-31 14:31:38,970 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-01-31 14:31:38,970 INFO L74 IsIncluded]: Start isIncluded. First operand 34 states. Second operand 35 states. [2019-01-31 14:31:38,970 INFO L87 Difference]: Start difference. First operand 34 states. Second operand 35 states. [2019-01-31 14:31:38,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 14:31:38,971 INFO L93 Difference]: Finished difference Result 35 states and 35 transitions. [2019-01-31 14:31:38,971 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 35 transitions. [2019-01-31 14:31:38,971 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-31 14:31:38,971 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-01-31 14:31:38,971 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-01-31 14:31:38,972 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-01-31 14:31:38,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2019-01-31 14:31:38,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 34 transitions. [2019-01-31 14:31:38,972 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 34 transitions. Word has length 31 [2019-01-31 14:31:38,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-31 14:31:38,972 INFO L480 AbstractCegarLoop]: Abstraction has 34 states and 34 transitions. [2019-01-31 14:31:38,972 INFO L481 AbstractCegarLoop]: Interpolant automaton has 35 states. [2019-01-31 14:31:38,973 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 34 transitions. [2019-01-31 14:31:38,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-01-31 14:31:38,973 INFO L394 BasicCegarLoop]: Found error trace [2019-01-31 14:31:38,973 INFO L402 BasicCegarLoop]: trace histogram [16, 15, 1, 1] [2019-01-31 14:31:38,974 INFO L423 AbstractCegarLoop]: === Iteration 16 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-01-31 14:31:38,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-31 14:31:38,974 INFO L82 PathProgramCache]: Analyzing trace with hash 371871806, now seen corresponding path program 15 times [2019-01-31 14:31:38,974 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-01-31 14:31:38,975 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-31 14:31:38,975 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-01-31 14:31:38,975 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-31 14:31:38,975 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-01-31 14:31:38,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-31 14:31:39,302 WARN L181 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 17 [2019-01-31 14:31:39,949 INFO L273 TraceCheckUtils]: 0: Hoare triple {3477#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {3479#(and (or (<= main_n 15) (<= main_i 0)) (or (<= 0 main_i) (< 15 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:39,950 INFO L273 TraceCheckUtils]: 1: Hoare triple {3479#(and (or (<= main_n 15) (<= main_i 0)) (or (<= 0 main_i) (< 15 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {3480#(and (or (<= main_n 15) (<= main_i 4)) (= 23 (select main_a (* 4 main_n))) (or (< 15 main_n) (<= 4 main_i)))} is VALID [2019-01-31 14:31:39,951 INFO L273 TraceCheckUtils]: 2: Hoare triple {3480#(and (or (<= main_n 15) (<= main_i 4)) (= 23 (select main_a (* 4 main_n))) (or (< 15 main_n) (<= 4 main_i)))} assume i <= n * 4; {3480#(and (or (<= main_n 15) (<= main_i 4)) (= 23 (select main_a (* 4 main_n))) (or (< 15 main_n) (<= 4 main_i)))} is VALID [2019-01-31 14:31:39,952 INFO L273 TraceCheckUtils]: 3: Hoare triple {3480#(and (or (<= main_n 15) (<= main_i 4)) (= 23 (select main_a (* 4 main_n))) (or (< 15 main_n) (<= 4 main_i)))} assume a[i] != 23;i := i + 4; {3481#(and (or (<= 8 main_i) (< 15 main_n)) (or (<= main_i 8) (<= main_n 15)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:39,953 INFO L273 TraceCheckUtils]: 4: Hoare triple {3481#(and (or (<= 8 main_i) (< 15 main_n)) (or (<= main_i 8) (<= main_n 15)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {3481#(and (or (<= 8 main_i) (< 15 main_n)) (or (<= main_i 8) (<= main_n 15)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:39,954 INFO L273 TraceCheckUtils]: 5: Hoare triple {3481#(and (or (<= 8 main_i) (< 15 main_n)) (or (<= main_i 8) (<= main_n 15)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {3482#(and (or (< 15 main_n) (<= 12 main_i)) (or (<= main_n 15) (<= main_i 12)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:39,955 INFO L273 TraceCheckUtils]: 6: Hoare triple {3482#(and (or (< 15 main_n) (<= 12 main_i)) (or (<= main_n 15) (<= main_i 12)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {3482#(and (or (< 15 main_n) (<= 12 main_i)) (or (<= main_n 15) (<= main_i 12)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:39,956 INFO L273 TraceCheckUtils]: 7: Hoare triple {3482#(and (or (< 15 main_n) (<= 12 main_i)) (or (<= main_n 15) (<= main_i 12)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {3483#(and (or (<= main_n 15) (<= main_i 16)) (or (< 15 main_n) (<= 16 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:39,957 INFO L273 TraceCheckUtils]: 8: Hoare triple {3483#(and (or (<= main_n 15) (<= main_i 16)) (or (< 15 main_n) (<= 16 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {3483#(and (or (<= main_n 15) (<= main_i 16)) (or (< 15 main_n) (<= 16 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:39,958 INFO L273 TraceCheckUtils]: 9: Hoare triple {3483#(and (or (<= main_n 15) (<= main_i 16)) (or (< 15 main_n) (<= 16 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {3484#(and (or (< 15 main_n) (<= 20 main_i)) (or (<= main_n 15) (<= main_i 20)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:39,959 INFO L273 TraceCheckUtils]: 10: Hoare triple {3484#(and (or (< 15 main_n) (<= 20 main_i)) (or (<= main_n 15) (<= main_i 20)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {3484#(and (or (< 15 main_n) (<= 20 main_i)) (or (<= main_n 15) (<= main_i 20)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:39,960 INFO L273 TraceCheckUtils]: 11: Hoare triple {3484#(and (or (< 15 main_n) (<= 20 main_i)) (or (<= main_n 15) (<= main_i 20)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {3485#(and (or (<= main_n 15) (<= main_i 24)) (or (<= 24 main_i) (< 15 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:39,960 INFO L273 TraceCheckUtils]: 12: Hoare triple {3485#(and (or (<= main_n 15) (<= main_i 24)) (or (<= 24 main_i) (< 15 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {3485#(and (or (<= main_n 15) (<= main_i 24)) (or (<= 24 main_i) (< 15 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:39,961 INFO L273 TraceCheckUtils]: 13: Hoare triple {3485#(and (or (<= main_n 15) (<= main_i 24)) (or (<= 24 main_i) (< 15 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {3486#(and (or (<= main_n 15) (<= main_i 28)) (= 23 (select main_a (* 4 main_n))) (or (<= 28 main_i) (< 15 main_n)))} is VALID [2019-01-31 14:31:39,962 INFO L273 TraceCheckUtils]: 14: Hoare triple {3486#(and (or (<= main_n 15) (<= main_i 28)) (= 23 (select main_a (* 4 main_n))) (or (<= 28 main_i) (< 15 main_n)))} assume i <= n * 4; {3486#(and (or (<= main_n 15) (<= main_i 28)) (= 23 (select main_a (* 4 main_n))) (or (<= 28 main_i) (< 15 main_n)))} is VALID [2019-01-31 14:31:39,963 INFO L273 TraceCheckUtils]: 15: Hoare triple {3486#(and (or (<= main_n 15) (<= main_i 28)) (= 23 (select main_a (* 4 main_n))) (or (<= 28 main_i) (< 15 main_n)))} assume a[i] != 23;i := i + 4; {3487#(and (or (<= 32 main_i) (< 15 main_n)) (or (<= main_i 32) (<= main_n 15)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:39,964 INFO L273 TraceCheckUtils]: 16: Hoare triple {3487#(and (or (<= 32 main_i) (< 15 main_n)) (or (<= main_i 32) (<= main_n 15)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {3487#(and (or (<= 32 main_i) (< 15 main_n)) (or (<= main_i 32) (<= main_n 15)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:39,965 INFO L273 TraceCheckUtils]: 17: Hoare triple {3487#(and (or (<= 32 main_i) (< 15 main_n)) (or (<= main_i 32) (<= main_n 15)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {3488#(and (or (<= main_i 36) (<= main_n 15)) (or (< 15 main_n) (<= 36 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:39,966 INFO L273 TraceCheckUtils]: 18: Hoare triple {3488#(and (or (<= main_i 36) (<= main_n 15)) (or (< 15 main_n) (<= 36 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {3488#(and (or (<= main_i 36) (<= main_n 15)) (or (< 15 main_n) (<= 36 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:39,983 INFO L273 TraceCheckUtils]: 19: Hoare triple {3488#(and (or (<= main_i 36) (<= main_n 15)) (or (< 15 main_n) (<= 36 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {3489#(and (or (<= main_i 40) (<= main_n 15)) (or (<= 40 main_i) (< 15 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:39,997 INFO L273 TraceCheckUtils]: 20: Hoare triple {3489#(and (or (<= main_i 40) (<= main_n 15)) (or (<= 40 main_i) (< 15 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {3489#(and (or (<= main_i 40) (<= main_n 15)) (or (<= 40 main_i) (< 15 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:40,011 INFO L273 TraceCheckUtils]: 21: Hoare triple {3489#(and (or (<= main_i 40) (<= main_n 15)) (or (<= 40 main_i) (< 15 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {3490#(and (or (<= main_n 15) (<= main_i 44)) (or (<= 44 main_i) (< 15 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:40,025 INFO L273 TraceCheckUtils]: 22: Hoare triple {3490#(and (or (<= main_n 15) (<= main_i 44)) (or (<= 44 main_i) (< 15 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {3490#(and (or (<= main_n 15) (<= main_i 44)) (or (<= 44 main_i) (< 15 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:40,035 INFO L273 TraceCheckUtils]: 23: Hoare triple {3490#(and (or (<= main_n 15) (<= main_i 44)) (or (<= 44 main_i) (< 15 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {3491#(and (or (<= main_n 15) (<= main_i 48)) (= 23 (select main_a (* 4 main_n))) (or (<= 48 main_i) (< 15 main_n)))} is VALID [2019-01-31 14:31:40,036 INFO L273 TraceCheckUtils]: 24: Hoare triple {3491#(and (or (<= main_n 15) (<= main_i 48)) (= 23 (select main_a (* 4 main_n))) (or (<= 48 main_i) (< 15 main_n)))} assume i <= n * 4; {3491#(and (or (<= main_n 15) (<= main_i 48)) (= 23 (select main_a (* 4 main_n))) (or (<= 48 main_i) (< 15 main_n)))} is VALID [2019-01-31 14:31:40,037 INFO L273 TraceCheckUtils]: 25: Hoare triple {3491#(and (or (<= main_n 15) (<= main_i 48)) (= 23 (select main_a (* 4 main_n))) (or (<= 48 main_i) (< 15 main_n)))} assume a[i] != 23;i := i + 4; {3492#(and (or (<= main_i 52) (<= main_n 15)) (= 23 (select main_a (* 4 main_n))) (or (< 15 main_n) (<= 52 main_i)))} is VALID [2019-01-31 14:31:40,037 INFO L273 TraceCheckUtils]: 26: Hoare triple {3492#(and (or (<= main_i 52) (<= main_n 15)) (= 23 (select main_a (* 4 main_n))) (or (< 15 main_n) (<= 52 main_i)))} assume i <= n * 4; {3492#(and (or (<= main_i 52) (<= main_n 15)) (= 23 (select main_a (* 4 main_n))) (or (< 15 main_n) (<= 52 main_i)))} is VALID [2019-01-31 14:31:40,038 INFO L273 TraceCheckUtils]: 27: Hoare triple {3492#(and (or (<= main_i 52) (<= main_n 15)) (= 23 (select main_a (* 4 main_n))) (or (< 15 main_n) (<= 52 main_i)))} assume a[i] != 23;i := i + 4; {3493#(and (or (< 15 main_n) (<= 56 main_i)) (or (<= main_n 15) (<= main_i 56)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:40,038 INFO L273 TraceCheckUtils]: 28: Hoare triple {3493#(and (or (< 15 main_n) (<= 56 main_i)) (or (<= main_n 15) (<= main_i 56)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {3493#(and (or (< 15 main_n) (<= 56 main_i)) (or (<= main_n 15) (<= main_i 56)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:40,039 INFO L273 TraceCheckUtils]: 29: Hoare triple {3493#(and (or (< 15 main_n) (<= 56 main_i)) (or (<= main_n 15) (<= main_i 56)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {3494#(and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (or (= (* 4 main_n) main_i) (and (or (<= main_n 15) (<= main_i 60)) (or (<= (* 4 main_n) main_i) (< 15 main_n)))))} is VALID [2019-01-31 14:31:40,040 INFO L273 TraceCheckUtils]: 30: Hoare triple {3494#(and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (or (= (* 4 main_n) main_i) (and (or (<= main_n 15) (<= main_i 60)) (or (<= (* 4 main_n) main_i) (< 15 main_n)))))} assume i <= n * 4; {3495#(and (or (= (* 4 main_n) main_i) (and (<= main_i 60) (< 15 main_n))) (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))))} is VALID [2019-01-31 14:31:40,057 INFO L273 TraceCheckUtils]: 31: Hoare triple {3495#(and (or (= (* 4 main_n) main_i) (and (<= main_i 60) (< 15 main_n))) (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))))} assume a[i] != 23;i := i + 4; {3496#(and (<= main_i 64) (< 15 main_n))} is VALID [2019-01-31 14:31:40,066 INFO L273 TraceCheckUtils]: 32: Hoare triple {3496#(and (<= main_i 64) (< 15 main_n))} assume !(i <= n * 4); {3478#false} is VALID [2019-01-31 14:31:40,072 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 14:31:40,072 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-31 14:31:40,073 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-01-31 14:31:40,073 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-01-31 14:31:40,073 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-01-31 14:31:40,073 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-31 14:31:40,073 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 14:31:40,083 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2019-01-31 14:31:40,084 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder TERMS_WITH_SMALL_CONSTANTS_FIRST (IT: FPandBP) [2019-01-31 14:31:40,100 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-01-31 14:31:40,100 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-01-31 14:31:40,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-31 14:31:40,110 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-31 14:31:40,129 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 14:31:40,132 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-01-31 14:31:40,136 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-31 14:31:40,137 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2019-01-31 14:31:40,139 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-01-31 14:31:40,139 WARN L398 uantifierElimination]: Input elimination task: ∃ [v_main_a_19]. (and (= (store v_main_a_19 (* 4 main_n) 23) main_a) (= main_i 0)) [2019-01-31 14:31:40,139 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2019-01-31 14:31:40,733 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2019-01-31 14:31:40,735 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-01-31 14:31:40,741 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-31 14:31:40,742 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2019-01-31 14:31:40,744 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-01-31 14:31:40,745 WARN L398 uantifierElimination]: Input elimination task: ∃ [main_a]. (let ((.cse0 (* 4 main_n))) (and (not (= 23 (select main_a 60))) (<= main_i 64) (<= 60 .cse0) (= 23 (select main_a .cse0)))) [2019-01-31 14:31:40,745 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (let ((.cse0 (* 4 main_n))) (and (not (= 60 .cse0)) (<= main_i 64) (<= 60 .cse0))) [2019-01-31 14:31:40,769 INFO L273 TraceCheckUtils]: 0: Hoare triple {3477#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {3500#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:40,770 INFO L273 TraceCheckUtils]: 1: Hoare triple {3500#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {3504#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2019-01-31 14:31:40,770 INFO L273 TraceCheckUtils]: 2: Hoare triple {3504#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume i <= n * 4; {3504#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2019-01-31 14:31:40,771 INFO L273 TraceCheckUtils]: 3: Hoare triple {3504#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume a[i] != 23;i := i + 4; {3511#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:40,771 INFO L273 TraceCheckUtils]: 4: Hoare triple {3511#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {3511#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:40,771 INFO L273 TraceCheckUtils]: 5: Hoare triple {3511#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {3518#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2019-01-31 14:31:40,772 INFO L273 TraceCheckUtils]: 6: Hoare triple {3518#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume i <= n * 4; {3518#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2019-01-31 14:31:40,773 INFO L273 TraceCheckUtils]: 7: Hoare triple {3518#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume a[i] != 23;i := i + 4; {3525#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:40,774 INFO L273 TraceCheckUtils]: 8: Hoare triple {3525#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {3525#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:40,774 INFO L273 TraceCheckUtils]: 9: Hoare triple {3525#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {3532#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:40,775 INFO L273 TraceCheckUtils]: 10: Hoare triple {3532#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {3532#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:40,776 INFO L273 TraceCheckUtils]: 11: Hoare triple {3532#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {3539#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:40,776 INFO L273 TraceCheckUtils]: 12: Hoare triple {3539#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {3539#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:40,777 INFO L273 TraceCheckUtils]: 13: Hoare triple {3539#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {3546#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:40,778 INFO L273 TraceCheckUtils]: 14: Hoare triple {3546#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {3546#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:40,779 INFO L273 TraceCheckUtils]: 15: Hoare triple {3546#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {3553#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:40,779 INFO L273 TraceCheckUtils]: 16: Hoare triple {3553#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {3553#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:40,780 INFO L273 TraceCheckUtils]: 17: Hoare triple {3553#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {3560#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:40,781 INFO L273 TraceCheckUtils]: 18: Hoare triple {3560#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {3560#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:40,781 INFO L273 TraceCheckUtils]: 19: Hoare triple {3560#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {3567#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:40,782 INFO L273 TraceCheckUtils]: 20: Hoare triple {3567#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {3567#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:40,783 INFO L273 TraceCheckUtils]: 21: Hoare triple {3567#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {3574#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:40,783 INFO L273 TraceCheckUtils]: 22: Hoare triple {3574#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {3574#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:40,784 INFO L273 TraceCheckUtils]: 23: Hoare triple {3574#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {3581#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:40,785 INFO L273 TraceCheckUtils]: 24: Hoare triple {3581#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {3581#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:40,786 INFO L273 TraceCheckUtils]: 25: Hoare triple {3581#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {3588#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:40,786 INFO L273 TraceCheckUtils]: 26: Hoare triple {3588#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {3588#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:40,787 INFO L273 TraceCheckUtils]: 27: Hoare triple {3588#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {3595#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:40,788 INFO L273 TraceCheckUtils]: 28: Hoare triple {3595#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {3595#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:40,789 INFO L273 TraceCheckUtils]: 29: Hoare triple {3595#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {3602#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:40,789 INFO L273 TraceCheckUtils]: 30: Hoare triple {3602#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {3606#(and (= main_i 60) (<= main_i (* 4 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:40,790 INFO L273 TraceCheckUtils]: 31: Hoare triple {3606#(and (= main_i 60) (<= main_i (* 4 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {3496#(and (<= main_i 64) (< 15 main_n))} is VALID [2019-01-31 14:31:40,791 INFO L273 TraceCheckUtils]: 32: Hoare triple {3496#(and (<= main_i 64) (< 15 main_n))} assume !(i <= n * 4); {3478#false} is VALID [2019-01-31 14:31:40,796 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 14:31:40,796 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2019-01-31 14:31:42,343 INFO L273 TraceCheckUtils]: 32: Hoare triple {3613#(<= main_i (* 4 main_n))} assume !(i <= n * 4); {3478#false} is VALID [2019-01-31 14:31:42,345 INFO L273 TraceCheckUtils]: 31: Hoare triple {3617#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} assume a[i] != 23;i := i + 4; {3613#(<= main_i (* 4 main_n))} is VALID [2019-01-31 14:31:42,345 INFO L273 TraceCheckUtils]: 30: Hoare triple {3621#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} assume i <= n * 4; {3617#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} is VALID [2019-01-31 14:31:42,346 INFO L273 TraceCheckUtils]: 29: Hoare triple {3625#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume a[i] != 23;i := i + 4; {3621#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} is VALID [2019-01-31 14:31:42,347 INFO L273 TraceCheckUtils]: 28: Hoare triple {3625#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume i <= n * 4; {3625#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2019-01-31 14:31:42,348 INFO L273 TraceCheckUtils]: 27: Hoare triple {3632#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume a[i] != 23;i := i + 4; {3625#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2019-01-31 14:31:42,349 INFO L273 TraceCheckUtils]: 26: Hoare triple {3632#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume i <= n * 4; {3632#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2019-01-31 14:31:42,350 INFO L273 TraceCheckUtils]: 25: Hoare triple {3639#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume a[i] != 23;i := i + 4; {3632#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2019-01-31 14:31:42,350 INFO L273 TraceCheckUtils]: 24: Hoare triple {3639#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume i <= n * 4; {3639#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2019-01-31 14:31:42,351 INFO L273 TraceCheckUtils]: 23: Hoare triple {3646#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume a[i] != 23;i := i + 4; {3639#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2019-01-31 14:31:42,352 INFO L273 TraceCheckUtils]: 22: Hoare triple {3646#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume i <= n * 4; {3646#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2019-01-31 14:31:42,353 INFO L273 TraceCheckUtils]: 21: Hoare triple {3653#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {3646#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2019-01-31 14:31:42,353 INFO L273 TraceCheckUtils]: 20: Hoare triple {3653#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume i <= n * 4; {3653#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2019-01-31 14:31:42,354 INFO L273 TraceCheckUtils]: 19: Hoare triple {3660#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume a[i] != 23;i := i + 4; {3653#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2019-01-31 14:31:42,355 INFO L273 TraceCheckUtils]: 18: Hoare triple {3660#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume i <= n * 4; {3660#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2019-01-31 14:31:42,356 INFO L273 TraceCheckUtils]: 17: Hoare triple {3667#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {3660#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2019-01-31 14:31:42,357 INFO L273 TraceCheckUtils]: 16: Hoare triple {3667#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume i <= n * 4; {3667#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2019-01-31 14:31:42,358 INFO L273 TraceCheckUtils]: 15: Hoare triple {3674#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {3667#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2019-01-31 14:31:42,358 INFO L273 TraceCheckUtils]: 14: Hoare triple {3674#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume i <= n * 4; {3674#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2019-01-31 14:31:42,359 INFO L273 TraceCheckUtils]: 13: Hoare triple {3681#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {3674#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2019-01-31 14:31:42,360 INFO L273 TraceCheckUtils]: 12: Hoare triple {3681#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume i <= n * 4; {3681#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2019-01-31 14:31:42,361 INFO L273 TraceCheckUtils]: 11: Hoare triple {3688#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} assume a[i] != 23;i := i + 4; {3681#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2019-01-31 14:31:42,362 INFO L273 TraceCheckUtils]: 10: Hoare triple {3688#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} assume i <= n * 4; {3688#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} is VALID [2019-01-31 14:31:42,363 INFO L273 TraceCheckUtils]: 9: Hoare triple {3695#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {3688#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} is VALID [2019-01-31 14:31:42,363 INFO L273 TraceCheckUtils]: 8: Hoare triple {3695#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} assume i <= n * 4; {3695#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} is VALID [2019-01-31 14:31:42,364 INFO L273 TraceCheckUtils]: 7: Hoare triple {3702#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {3695#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} is VALID [2019-01-31 14:31:42,365 INFO L273 TraceCheckUtils]: 6: Hoare triple {3702#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} assume i <= n * 4; {3702#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} is VALID [2019-01-31 14:31:42,366 INFO L273 TraceCheckUtils]: 5: Hoare triple {3709#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} assume a[i] != 23;i := i + 4; {3702#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} is VALID [2019-01-31 14:31:42,366 INFO L273 TraceCheckUtils]: 4: Hoare triple {3709#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} assume i <= n * 4; {3709#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} is VALID [2019-01-31 14:31:42,368 INFO L273 TraceCheckUtils]: 3: Hoare triple {3716#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {3709#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} is VALID [2019-01-31 14:31:42,368 INFO L273 TraceCheckUtils]: 2: Hoare triple {3716#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} assume i <= n * 4; {3716#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} is VALID [2019-01-31 14:31:42,369 INFO L273 TraceCheckUtils]: 1: Hoare triple {3723#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} assume a[i] != 23;i := i + 4; {3716#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} is VALID [2019-01-31 14:31:42,370 INFO L273 TraceCheckUtils]: 0: Hoare triple {3477#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {3723#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} is VALID [2019-01-31 14:31:42,376 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 14:31:42,396 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-01-31 14:31:42,396 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18, 18] total 53 [2019-01-31 14:31:42,396 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-01-31 14:31:42,396 INFO L78 Accepts]: Start accepts. Automaton has 37 states. Word has length 33 [2019-01-31 14:31:42,397 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-01-31 14:31:42,397 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 37 states. [2019-01-31 14:31:42,475 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 14:31:42,475 INFO L459 AbstractCegarLoop]: Interpolant automaton has 37 states [2019-01-31 14:31:42,475 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2019-01-31 14:31:42,477 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=422, Invalid=2548, Unknown=0, NotChecked=0, Total=2970 [2019-01-31 14:31:42,477 INFO L87 Difference]: Start difference. First operand 34 states and 34 transitions. Second operand 37 states. [2019-01-31 14:31:44,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 14:31:44,417 INFO L93 Difference]: Finished difference Result 38 states and 38 transitions. [2019-01-31 14:31:44,417 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2019-01-31 14:31:44,417 INFO L78 Accepts]: Start accepts. Automaton has 37 states. Word has length 33 [2019-01-31 14:31:44,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-31 14:31:44,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2019-01-31 14:31:44,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 38 transitions. [2019-01-31 14:31:44,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2019-01-31 14:31:44,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 38 transitions. [2019-01-31 14:31:44,420 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 20 states and 38 transitions. [2019-01-31 14:31:44,458 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 14:31:44,459 INFO L225 Difference]: With dead ends: 38 [2019-01-31 14:31:44,459 INFO L226 Difference]: Without dead ends: 37 [2019-01-31 14:31:44,461 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 28 SyntacticMatches, 1 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 680 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=422, Invalid=2548, Unknown=0, NotChecked=0, Total=2970 [2019-01-31 14:31:44,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2019-01-31 14:31:44,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 36. [2019-01-31 14:31:44,494 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-01-31 14:31:44,494 INFO L82 GeneralOperation]: Start isEquivalent. First operand 37 states. Second operand 36 states. [2019-01-31 14:31:44,494 INFO L74 IsIncluded]: Start isIncluded. First operand 37 states. Second operand 36 states. [2019-01-31 14:31:44,494 INFO L87 Difference]: Start difference. First operand 37 states. Second operand 36 states. [2019-01-31 14:31:44,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 14:31:44,495 INFO L93 Difference]: Finished difference Result 37 states and 37 transitions. [2019-01-31 14:31:44,495 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 37 transitions. [2019-01-31 14:31:44,496 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-31 14:31:44,496 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-01-31 14:31:44,496 INFO L74 IsIncluded]: Start isIncluded. First operand 36 states. Second operand 37 states. [2019-01-31 14:31:44,496 INFO L87 Difference]: Start difference. First operand 36 states. Second operand 37 states. [2019-01-31 14:31:44,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 14:31:44,497 INFO L93 Difference]: Finished difference Result 37 states and 37 transitions. [2019-01-31 14:31:44,497 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 37 transitions. [2019-01-31 14:31:44,498 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-31 14:31:44,498 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-01-31 14:31:44,498 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-01-31 14:31:44,498 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-01-31 14:31:44,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2019-01-31 14:31:44,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 36 transitions. [2019-01-31 14:31:44,499 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 36 transitions. Word has length 33 [2019-01-31 14:31:44,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-31 14:31:44,499 INFO L480 AbstractCegarLoop]: Abstraction has 36 states and 36 transitions. [2019-01-31 14:31:44,499 INFO L481 AbstractCegarLoop]: Interpolant automaton has 37 states. [2019-01-31 14:31:44,499 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 36 transitions. [2019-01-31 14:31:44,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2019-01-31 14:31:44,499 INFO L394 BasicCegarLoop]: Found error trace [2019-01-31 14:31:44,499 INFO L402 BasicCegarLoop]: trace histogram [17, 16, 1, 1] [2019-01-31 14:31:44,500 INFO L423 AbstractCegarLoop]: === Iteration 17 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-01-31 14:31:44,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-31 14:31:44,500 INFO L82 PathProgramCache]: Analyzing trace with hash 886521088, now seen corresponding path program 16 times [2019-01-31 14:31:44,500 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-01-31 14:31:44,500 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-31 14:31:44,501 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-01-31 14:31:44,501 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-31 14:31:44,501 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-01-31 14:31:44,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-31 14:31:44,897 WARN L181 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 17 [2019-01-31 14:31:45,295 WARN L181 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2019-01-31 14:31:45,922 INFO L273 TraceCheckUtils]: 0: Hoare triple {3909#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {3911#(and (or (<= main_i 0) (<= main_n 16)) (or (< 16 main_n) (<= 0 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:45,923 INFO L273 TraceCheckUtils]: 1: Hoare triple {3911#(and (or (<= main_i 0) (<= main_n 16)) (or (< 16 main_n) (<= 0 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {3912#(and (or (< 16 main_n) (<= 4 main_i)) (or (<= main_n 16) (<= main_i 4)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:45,924 INFO L273 TraceCheckUtils]: 2: Hoare triple {3912#(and (or (< 16 main_n) (<= 4 main_i)) (or (<= main_n 16) (<= main_i 4)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {3912#(and (or (< 16 main_n) (<= 4 main_i)) (or (<= main_n 16) (<= main_i 4)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:45,925 INFO L273 TraceCheckUtils]: 3: Hoare triple {3912#(and (or (< 16 main_n) (<= 4 main_i)) (or (<= main_n 16) (<= main_i 4)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {3913#(and (or (< 16 main_n) (<= 8 main_i)) (or (<= main_i 8) (<= main_n 16)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:45,926 INFO L273 TraceCheckUtils]: 4: Hoare triple {3913#(and (or (< 16 main_n) (<= 8 main_i)) (or (<= main_i 8) (<= main_n 16)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {3913#(and (or (< 16 main_n) (<= 8 main_i)) (or (<= main_i 8) (<= main_n 16)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:45,927 INFO L273 TraceCheckUtils]: 5: Hoare triple {3913#(and (or (< 16 main_n) (<= 8 main_i)) (or (<= main_i 8) (<= main_n 16)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {3914#(and (or (< 16 main_n) (<= 12 main_i)) (or (<= main_n 16) (<= main_i 12)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:45,928 INFO L273 TraceCheckUtils]: 6: Hoare triple {3914#(and (or (< 16 main_n) (<= 12 main_i)) (or (<= main_n 16) (<= main_i 12)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {3914#(and (or (< 16 main_n) (<= 12 main_i)) (or (<= main_n 16) (<= main_i 12)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:45,929 INFO L273 TraceCheckUtils]: 7: Hoare triple {3914#(and (or (< 16 main_n) (<= 12 main_i)) (or (<= main_n 16) (<= main_i 12)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {3915#(and (or (< 16 main_n) (<= 16 main_i)) (or (<= main_n 16) (<= main_i 16)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:45,930 INFO L273 TraceCheckUtils]: 8: Hoare triple {3915#(and (or (< 16 main_n) (<= 16 main_i)) (or (<= main_n 16) (<= main_i 16)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {3915#(and (or (< 16 main_n) (<= 16 main_i)) (or (<= main_n 16) (<= main_i 16)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:45,931 INFO L273 TraceCheckUtils]: 9: Hoare triple {3915#(and (or (< 16 main_n) (<= 16 main_i)) (or (<= main_n 16) (<= main_i 16)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {3916#(and (or (< 16 main_n) (<= 20 main_i)) (or (<= main_i 20) (<= main_n 16)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:45,931 INFO L273 TraceCheckUtils]: 10: Hoare triple {3916#(and (or (< 16 main_n) (<= 20 main_i)) (or (<= main_i 20) (<= main_n 16)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {3916#(and (or (< 16 main_n) (<= 20 main_i)) (or (<= main_i 20) (<= main_n 16)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:45,933 INFO L273 TraceCheckUtils]: 11: Hoare triple {3916#(and (or (< 16 main_n) (<= 20 main_i)) (or (<= main_i 20) (<= main_n 16)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {3917#(and (or (<= main_i 24) (<= main_n 16)) (or (< 16 main_n) (<= 24 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:45,933 INFO L273 TraceCheckUtils]: 12: Hoare triple {3917#(and (or (<= main_i 24) (<= main_n 16)) (or (< 16 main_n) (<= 24 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {3917#(and (or (<= main_i 24) (<= main_n 16)) (or (< 16 main_n) (<= 24 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:45,934 INFO L273 TraceCheckUtils]: 13: Hoare triple {3917#(and (or (<= main_i 24) (<= main_n 16)) (or (< 16 main_n) (<= 24 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {3918#(and (or (< 16 main_n) (<= 28 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 16) (<= main_i 28)))} is VALID [2019-01-31 14:31:45,935 INFO L273 TraceCheckUtils]: 14: Hoare triple {3918#(and (or (< 16 main_n) (<= 28 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 16) (<= main_i 28)))} assume i <= n * 4; {3918#(and (or (< 16 main_n) (<= 28 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 16) (<= main_i 28)))} is VALID [2019-01-31 14:31:45,936 INFO L273 TraceCheckUtils]: 15: Hoare triple {3918#(and (or (< 16 main_n) (<= 28 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 16) (<= main_i 28)))} assume a[i] != 23;i := i + 4; {3919#(and (or (<= main_i 32) (<= main_n 16)) (or (< 16 main_n) (<= 32 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:45,937 INFO L273 TraceCheckUtils]: 16: Hoare triple {3919#(and (or (<= main_i 32) (<= main_n 16)) (or (< 16 main_n) (<= 32 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {3919#(and (or (<= main_i 32) (<= main_n 16)) (or (< 16 main_n) (<= 32 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:45,938 INFO L273 TraceCheckUtils]: 17: Hoare triple {3919#(and (or (<= main_i 32) (<= main_n 16)) (or (< 16 main_n) (<= 32 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {3920#(and (or (< 16 main_n) (<= 36 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 36) (<= main_n 16)))} is VALID [2019-01-31 14:31:45,939 INFO L273 TraceCheckUtils]: 18: Hoare triple {3920#(and (or (< 16 main_n) (<= 36 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 36) (<= main_n 16)))} assume i <= n * 4; {3920#(and (or (< 16 main_n) (<= 36 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 36) (<= main_n 16)))} is VALID [2019-01-31 14:31:45,940 INFO L273 TraceCheckUtils]: 19: Hoare triple {3920#(and (or (< 16 main_n) (<= 36 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 36) (<= main_n 16)))} assume a[i] != 23;i := i + 4; {3921#(and (or (< 16 main_n) (<= 40 main_i)) (or (<= main_i 40) (<= main_n 16)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:45,941 INFO L273 TraceCheckUtils]: 20: Hoare triple {3921#(and (or (< 16 main_n) (<= 40 main_i)) (or (<= main_i 40) (<= main_n 16)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {3921#(and (or (< 16 main_n) (<= 40 main_i)) (or (<= main_i 40) (<= main_n 16)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:45,942 INFO L273 TraceCheckUtils]: 21: Hoare triple {3921#(and (or (< 16 main_n) (<= 40 main_i)) (or (<= main_i 40) (<= main_n 16)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {3922#(and (or (< 16 main_n) (<= 44 main_i)) (or (<= main_n 16) (<= main_i 44)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:45,942 INFO L273 TraceCheckUtils]: 22: Hoare triple {3922#(and (or (< 16 main_n) (<= 44 main_i)) (or (<= main_n 16) (<= main_i 44)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {3922#(and (or (< 16 main_n) (<= 44 main_i)) (or (<= main_n 16) (<= main_i 44)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:45,943 INFO L273 TraceCheckUtils]: 23: Hoare triple {3922#(and (or (< 16 main_n) (<= 44 main_i)) (or (<= main_n 16) (<= main_i 44)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {3923#(and (or (<= main_n 16) (<= main_i 48)) (= 23 (select main_a (* 4 main_n))) (or (< 16 main_n) (<= 48 main_i)))} is VALID [2019-01-31 14:31:45,944 INFO L273 TraceCheckUtils]: 24: Hoare triple {3923#(and (or (<= main_n 16) (<= main_i 48)) (= 23 (select main_a (* 4 main_n))) (or (< 16 main_n) (<= 48 main_i)))} assume i <= n * 4; {3923#(and (or (<= main_n 16) (<= main_i 48)) (= 23 (select main_a (* 4 main_n))) (or (< 16 main_n) (<= 48 main_i)))} is VALID [2019-01-31 14:31:45,945 INFO L273 TraceCheckUtils]: 25: Hoare triple {3923#(and (or (<= main_n 16) (<= main_i 48)) (= 23 (select main_a (* 4 main_n))) (or (< 16 main_n) (<= 48 main_i)))} assume a[i] != 23;i := i + 4; {3924#(and (or (< 16 main_n) (<= 52 main_i)) (or (<= main_i 52) (<= main_n 16)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:45,946 INFO L273 TraceCheckUtils]: 26: Hoare triple {3924#(and (or (< 16 main_n) (<= 52 main_i)) (or (<= main_i 52) (<= main_n 16)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {3924#(and (or (< 16 main_n) (<= 52 main_i)) (or (<= main_i 52) (<= main_n 16)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:45,947 INFO L273 TraceCheckUtils]: 27: Hoare triple {3924#(and (or (< 16 main_n) (<= 52 main_i)) (or (<= main_i 52) (<= main_n 16)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {3925#(and (or (<= main_n 16) (<= main_i 56)) (or (< 16 main_n) (<= 56 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:45,948 INFO L273 TraceCheckUtils]: 28: Hoare triple {3925#(and (or (<= main_n 16) (<= main_i 56)) (or (< 16 main_n) (<= 56 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {3925#(and (or (<= main_n 16) (<= main_i 56)) (or (< 16 main_n) (<= 56 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:45,949 INFO L273 TraceCheckUtils]: 29: Hoare triple {3925#(and (or (<= main_n 16) (<= main_i 56)) (or (< 16 main_n) (<= 56 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {3926#(and (or (< 16 main_n) (<= 60 main_i)) (or (<= main_i 60) (<= main_n 16)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:45,950 INFO L273 TraceCheckUtils]: 30: Hoare triple {3926#(and (or (< 16 main_n) (<= 60 main_i)) (or (<= main_i 60) (<= main_n 16)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {3926#(and (or (< 16 main_n) (<= 60 main_i)) (or (<= main_i 60) (<= main_n 16)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:45,951 INFO L273 TraceCheckUtils]: 31: Hoare triple {3926#(and (or (< 16 main_n) (<= 60 main_i)) (or (<= main_i 60) (<= main_n 16)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {3927#(and (or (= (* 4 main_n) main_i) (and (or (<= main_i 64) (<= main_n 16)) (or (< 16 main_n) (<= (* 4 main_n) main_i)))) (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))))} is VALID [2019-01-31 14:31:45,952 INFO L273 TraceCheckUtils]: 32: Hoare triple {3927#(and (or (= (* 4 main_n) main_i) (and (or (<= main_i 64) (<= main_n 16)) (or (< 16 main_n) (<= (* 4 main_n) main_i)))) (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))))} assume i <= n * 4; {3928#(and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (or (= (* 4 main_n) main_i) (and (< 16 main_n) (<= main_i 64))))} is VALID [2019-01-31 14:31:45,953 INFO L273 TraceCheckUtils]: 33: Hoare triple {3928#(and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (or (= (* 4 main_n) main_i) (and (< 16 main_n) (<= main_i 64))))} assume a[i] != 23;i := i + 4; {3929#(and (<= 17 main_n) (<= main_i 68))} is VALID [2019-01-31 14:31:45,954 INFO L273 TraceCheckUtils]: 34: Hoare triple {3929#(and (<= 17 main_n) (<= main_i 68))} assume !(i <= n * 4); {3910#false} is VALID [2019-01-31 14:31:45,961 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 14:31:45,961 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-31 14:31:45,961 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-01-31 14:31:45,961 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-01-31 14:31:45,961 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-01-31 14:31:45,961 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-31 14:31:45,962 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 14:31:45,971 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-31 14:31:45,971 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2019-01-31 14:31:45,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-31 14:31:45,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-31 14:31:45,990 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-31 14:31:45,997 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 14:31:45,999 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-01-31 14:31:46,002 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-31 14:31:46,002 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2019-01-31 14:31:46,005 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-01-31 14:31:46,005 WARN L398 uantifierElimination]: Input elimination task: ∃ [v_main_a_20]. (and (= (store v_main_a_20 (* 4 main_n) 23) main_a) (= main_i 0)) [2019-01-31 14:31:46,005 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2019-01-31 14:31:46,709 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2019-01-31 14:31:46,711 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-01-31 14:31:46,718 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-31 14:31:46,719 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2019-01-31 14:31:46,721 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-01-31 14:31:46,722 WARN L398 uantifierElimination]: Input elimination task: ∃ [main_a]. (let ((.cse0 (* 4 main_n))) (and (<= 64 .cse0) (not (= (select main_a 64) 23)) (= 23 (select main_a .cse0)) (<= main_i 68))) [2019-01-31 14:31:46,722 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (let ((.cse0 (* 4 main_n))) (and (not (= 64 .cse0)) (<= 64 .cse0) (<= main_i 68))) [2019-01-31 14:31:46,746 INFO L273 TraceCheckUtils]: 0: Hoare triple {3909#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {3933#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:46,747 INFO L273 TraceCheckUtils]: 1: Hoare triple {3933#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {3937#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2019-01-31 14:31:46,748 INFO L273 TraceCheckUtils]: 2: Hoare triple {3937#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume i <= n * 4; {3937#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2019-01-31 14:31:46,749 INFO L273 TraceCheckUtils]: 3: Hoare triple {3937#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume a[i] != 23;i := i + 4; {3944#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:46,749 INFO L273 TraceCheckUtils]: 4: Hoare triple {3944#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {3944#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:46,750 INFO L273 TraceCheckUtils]: 5: Hoare triple {3944#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {3951#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2019-01-31 14:31:46,751 INFO L273 TraceCheckUtils]: 6: Hoare triple {3951#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume i <= n * 4; {3951#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2019-01-31 14:31:46,752 INFO L273 TraceCheckUtils]: 7: Hoare triple {3951#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume a[i] != 23;i := i + 4; {3958#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:46,752 INFO L273 TraceCheckUtils]: 8: Hoare triple {3958#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {3958#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:46,753 INFO L273 TraceCheckUtils]: 9: Hoare triple {3958#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {3965#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:46,754 INFO L273 TraceCheckUtils]: 10: Hoare triple {3965#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {3965#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:46,755 INFO L273 TraceCheckUtils]: 11: Hoare triple {3965#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {3972#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:46,755 INFO L273 TraceCheckUtils]: 12: Hoare triple {3972#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {3972#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:46,756 INFO L273 TraceCheckUtils]: 13: Hoare triple {3972#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {3979#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:46,757 INFO L273 TraceCheckUtils]: 14: Hoare triple {3979#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {3979#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:46,757 INFO L273 TraceCheckUtils]: 15: Hoare triple {3979#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {3986#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:46,758 INFO L273 TraceCheckUtils]: 16: Hoare triple {3986#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {3986#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:46,759 INFO L273 TraceCheckUtils]: 17: Hoare triple {3986#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {3993#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:46,760 INFO L273 TraceCheckUtils]: 18: Hoare triple {3993#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {3993#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:46,760 INFO L273 TraceCheckUtils]: 19: Hoare triple {3993#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {4000#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:46,761 INFO L273 TraceCheckUtils]: 20: Hoare triple {4000#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {4000#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:46,762 INFO L273 TraceCheckUtils]: 21: Hoare triple {4000#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {4007#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:46,763 INFO L273 TraceCheckUtils]: 22: Hoare triple {4007#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {4007#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:46,763 INFO L273 TraceCheckUtils]: 23: Hoare triple {4007#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {4014#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:46,764 INFO L273 TraceCheckUtils]: 24: Hoare triple {4014#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {4014#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:46,765 INFO L273 TraceCheckUtils]: 25: Hoare triple {4014#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {4021#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:46,766 INFO L273 TraceCheckUtils]: 26: Hoare triple {4021#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {4021#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:46,766 INFO L273 TraceCheckUtils]: 27: Hoare triple {4021#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {4028#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:46,767 INFO L273 TraceCheckUtils]: 28: Hoare triple {4028#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {4028#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:46,768 INFO L273 TraceCheckUtils]: 29: Hoare triple {4028#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {4035#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:46,769 INFO L273 TraceCheckUtils]: 30: Hoare triple {4035#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {4035#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:46,769 INFO L273 TraceCheckUtils]: 31: Hoare triple {4035#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {4042#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:46,770 INFO L273 TraceCheckUtils]: 32: Hoare triple {4042#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {4046#(and (= main_i 64) (<= main_i (* 4 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:46,771 INFO L273 TraceCheckUtils]: 33: Hoare triple {4046#(and (= main_i 64) (<= main_i (* 4 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {3929#(and (<= 17 main_n) (<= main_i 68))} is VALID [2019-01-31 14:31:46,772 INFO L273 TraceCheckUtils]: 34: Hoare triple {3929#(and (<= 17 main_n) (<= main_i 68))} assume !(i <= n * 4); {3910#false} is VALID [2019-01-31 14:31:46,777 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 14:31:46,777 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2019-01-31 14:31:48,127 INFO L273 TraceCheckUtils]: 34: Hoare triple {4053#(<= main_i (* 4 main_n))} assume !(i <= n * 4); {3910#false} is VALID [2019-01-31 14:31:48,128 INFO L273 TraceCheckUtils]: 33: Hoare triple {4057#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} assume a[i] != 23;i := i + 4; {4053#(<= main_i (* 4 main_n))} is VALID [2019-01-31 14:31:48,129 INFO L273 TraceCheckUtils]: 32: Hoare triple {4061#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} assume i <= n * 4; {4057#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} is VALID [2019-01-31 14:31:48,130 INFO L273 TraceCheckUtils]: 31: Hoare triple {4065#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume a[i] != 23;i := i + 4; {4061#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} is VALID [2019-01-31 14:31:48,130 INFO L273 TraceCheckUtils]: 30: Hoare triple {4065#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume i <= n * 4; {4065#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2019-01-31 14:31:48,132 INFO L273 TraceCheckUtils]: 29: Hoare triple {4072#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume a[i] != 23;i := i + 4; {4065#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2019-01-31 14:31:48,132 INFO L273 TraceCheckUtils]: 28: Hoare triple {4072#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume i <= n * 4; {4072#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2019-01-31 14:31:48,133 INFO L273 TraceCheckUtils]: 27: Hoare triple {4079#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume a[i] != 23;i := i + 4; {4072#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2019-01-31 14:31:48,134 INFO L273 TraceCheckUtils]: 26: Hoare triple {4079#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume i <= n * 4; {4079#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2019-01-31 14:31:48,135 INFO L273 TraceCheckUtils]: 25: Hoare triple {4086#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume a[i] != 23;i := i + 4; {4079#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2019-01-31 14:31:48,136 INFO L273 TraceCheckUtils]: 24: Hoare triple {4086#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume i <= n * 4; {4086#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2019-01-31 14:31:48,137 INFO L273 TraceCheckUtils]: 23: Hoare triple {4093#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {4086#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2019-01-31 14:31:48,137 INFO L273 TraceCheckUtils]: 22: Hoare triple {4093#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume i <= n * 4; {4093#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2019-01-31 14:31:48,138 INFO L273 TraceCheckUtils]: 21: Hoare triple {4100#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume a[i] != 23;i := i + 4; {4093#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2019-01-31 14:31:48,139 INFO L273 TraceCheckUtils]: 20: Hoare triple {4100#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume i <= n * 4; {4100#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2019-01-31 14:31:48,140 INFO L273 TraceCheckUtils]: 19: Hoare triple {4107#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {4100#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2019-01-31 14:31:48,141 INFO L273 TraceCheckUtils]: 18: Hoare triple {4107#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume i <= n * 4; {4107#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2019-01-31 14:31:48,142 INFO L273 TraceCheckUtils]: 17: Hoare triple {4114#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {4107#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2019-01-31 14:31:48,142 INFO L273 TraceCheckUtils]: 16: Hoare triple {4114#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume i <= n * 4; {4114#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2019-01-31 14:31:48,143 INFO L273 TraceCheckUtils]: 15: Hoare triple {4121#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {4114#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2019-01-31 14:31:48,144 INFO L273 TraceCheckUtils]: 14: Hoare triple {4121#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume i <= n * 4; {4121#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2019-01-31 14:31:48,145 INFO L273 TraceCheckUtils]: 13: Hoare triple {4128#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} assume a[i] != 23;i := i + 4; {4121#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2019-01-31 14:31:48,145 INFO L273 TraceCheckUtils]: 12: Hoare triple {4128#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} assume i <= n * 4; {4128#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} is VALID [2019-01-31 14:31:48,146 INFO L273 TraceCheckUtils]: 11: Hoare triple {4135#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {4128#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} is VALID [2019-01-31 14:31:48,147 INFO L273 TraceCheckUtils]: 10: Hoare triple {4135#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} assume i <= n * 4; {4135#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} is VALID [2019-01-31 14:31:48,148 INFO L273 TraceCheckUtils]: 9: Hoare triple {4142#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {4135#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} is VALID [2019-01-31 14:31:48,149 INFO L273 TraceCheckUtils]: 8: Hoare triple {4142#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} assume i <= n * 4; {4142#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} is VALID [2019-01-31 14:31:48,150 INFO L273 TraceCheckUtils]: 7: Hoare triple {4149#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} assume a[i] != 23;i := i + 4; {4142#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} is VALID [2019-01-31 14:31:48,150 INFO L273 TraceCheckUtils]: 6: Hoare triple {4149#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} assume i <= n * 4; {4149#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} is VALID [2019-01-31 14:31:48,151 INFO L273 TraceCheckUtils]: 5: Hoare triple {4156#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {4149#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} is VALID [2019-01-31 14:31:48,152 INFO L273 TraceCheckUtils]: 4: Hoare triple {4156#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} assume i <= n * 4; {4156#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} is VALID [2019-01-31 14:31:48,153 INFO L273 TraceCheckUtils]: 3: Hoare triple {4163#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} assume a[i] != 23;i := i + 4; {4156#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} is VALID [2019-01-31 14:31:48,153 INFO L273 TraceCheckUtils]: 2: Hoare triple {4163#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} assume i <= n * 4; {4163#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} is VALID [2019-01-31 14:31:48,154 INFO L273 TraceCheckUtils]: 1: Hoare triple {4170#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} assume a[i] != 23;i := i + 4; {4163#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} is VALID [2019-01-31 14:31:48,155 INFO L273 TraceCheckUtils]: 0: Hoare triple {3909#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {4170#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} is VALID [2019-01-31 14:31:48,161 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 14:31:48,178 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-01-31 14:31:48,179 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 19, 19] total 56 [2019-01-31 14:31:48,179 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-01-31 14:31:48,179 INFO L78 Accepts]: Start accepts. Automaton has 39 states. Word has length 35 [2019-01-31 14:31:48,179 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-01-31 14:31:48,179 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 39 states. [2019-01-31 14:31:48,259 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 14:31:48,259 INFO L459 AbstractCegarLoop]: Interpolant automaton has 39 states [2019-01-31 14:31:48,259 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2019-01-31 14:31:48,261 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=464, Invalid=2842, Unknown=0, NotChecked=0, Total=3306 [2019-01-31 14:31:48,261 INFO L87 Difference]: Start difference. First operand 36 states and 36 transitions. Second operand 39 states. [2019-01-31 14:31:50,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 14:31:50,172 INFO L93 Difference]: Finished difference Result 40 states and 40 transitions. [2019-01-31 14:31:50,172 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2019-01-31 14:31:50,172 INFO L78 Accepts]: Start accepts. Automaton has 39 states. Word has length 35 [2019-01-31 14:31:50,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-31 14:31:50,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2019-01-31 14:31:50,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 40 transitions. [2019-01-31 14:31:50,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2019-01-31 14:31:50,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 40 transitions. [2019-01-31 14:31:50,174 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 21 states and 40 transitions. [2019-01-31 14:31:50,217 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 14:31:50,218 INFO L225 Difference]: With dead ends: 40 [2019-01-31 14:31:50,218 INFO L226 Difference]: Without dead ends: 39 [2019-01-31 14:31:50,220 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 30 SyntacticMatches, 1 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 756 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=464, Invalid=2842, Unknown=0, NotChecked=0, Total=3306 [2019-01-31 14:31:50,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2019-01-31 14:31:50,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 38. [2019-01-31 14:31:50,270 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-01-31 14:31:50,270 INFO L82 GeneralOperation]: Start isEquivalent. First operand 39 states. Second operand 38 states. [2019-01-31 14:31:50,270 INFO L74 IsIncluded]: Start isIncluded. First operand 39 states. Second operand 38 states. [2019-01-31 14:31:50,270 INFO L87 Difference]: Start difference. First operand 39 states. Second operand 38 states. [2019-01-31 14:31:50,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 14:31:50,271 INFO L93 Difference]: Finished difference Result 39 states and 39 transitions. [2019-01-31 14:31:50,271 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 39 transitions. [2019-01-31 14:31:50,272 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-31 14:31:50,272 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-01-31 14:31:50,272 INFO L74 IsIncluded]: Start isIncluded. First operand 38 states. Second operand 39 states. [2019-01-31 14:31:50,272 INFO L87 Difference]: Start difference. First operand 38 states. Second operand 39 states. [2019-01-31 14:31:50,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 14:31:50,273 INFO L93 Difference]: Finished difference Result 39 states and 39 transitions. [2019-01-31 14:31:50,273 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 39 transitions. [2019-01-31 14:31:50,273 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-31 14:31:50,273 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-01-31 14:31:50,273 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-01-31 14:31:50,273 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-01-31 14:31:50,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2019-01-31 14:31:50,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 38 transitions. [2019-01-31 14:31:50,274 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 38 transitions. Word has length 35 [2019-01-31 14:31:50,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-31 14:31:50,274 INFO L480 AbstractCegarLoop]: Abstraction has 38 states and 38 transitions. [2019-01-31 14:31:50,274 INFO L481 AbstractCegarLoop]: Interpolant automaton has 39 states. [2019-01-31 14:31:50,275 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 38 transitions. [2019-01-31 14:31:50,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2019-01-31 14:31:50,275 INFO L394 BasicCegarLoop]: Found error trace [2019-01-31 14:31:50,275 INFO L402 BasicCegarLoop]: trace histogram [18, 17, 1, 1] [2019-01-31 14:31:50,275 INFO L423 AbstractCegarLoop]: === Iteration 18 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-01-31 14:31:50,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-31 14:31:50,276 INFO L82 PathProgramCache]: Analyzing trace with hash 1543242050, now seen corresponding path program 17 times [2019-01-31 14:31:50,276 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-01-31 14:31:50,276 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-31 14:31:50,277 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-31 14:31:50,277 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-31 14:31:50,277 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-01-31 14:31:50,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-31 14:31:51,168 INFO L273 TraceCheckUtils]: 0: Hoare triple {4366#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {4368#(and (or (and (<= 0 main_i) (= 23 (select main_a (* 4 main_n)))) (< 17 main_n)) (or (<= main_i 0) (<= main_n 17)))} is VALID [2019-01-31 14:31:51,170 INFO L273 TraceCheckUtils]: 1: Hoare triple {4368#(and (or (and (<= 0 main_i) (= 23 (select main_a (* 4 main_n)))) (< 17 main_n)) (or (<= main_i 0) (<= main_n 17)))} assume a[i] != 23;i := i + 4; {4369#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i)) (< 17 main_n)) (or (<= main_i 4) (<= main_n 17)))} is VALID [2019-01-31 14:31:51,171 INFO L273 TraceCheckUtils]: 2: Hoare triple {4369#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i)) (< 17 main_n)) (or (<= main_i 4) (<= main_n 17)))} assume i <= n * 4; {4369#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i)) (< 17 main_n)) (or (<= main_i 4) (<= main_n 17)))} is VALID [2019-01-31 14:31:51,172 INFO L273 TraceCheckUtils]: 3: Hoare triple {4369#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i)) (< 17 main_n)) (or (<= main_i 4) (<= main_n 17)))} assume a[i] != 23;i := i + 4; {4370#(and (or (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n)))) (< 17 main_n)) (or (<= main_i 8) (<= main_n 17)))} is VALID [2019-01-31 14:31:51,173 INFO L273 TraceCheckUtils]: 4: Hoare triple {4370#(and (or (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n)))) (< 17 main_n)) (or (<= main_i 8) (<= main_n 17)))} assume i <= n * 4; {4370#(and (or (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n)))) (< 17 main_n)) (or (<= main_i 8) (<= main_n 17)))} is VALID [2019-01-31 14:31:51,174 INFO L273 TraceCheckUtils]: 5: Hoare triple {4370#(and (or (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n)))) (< 17 main_n)) (or (<= main_i 8) (<= main_n 17)))} assume a[i] != 23;i := i + 4; {4371#(and (or (<= main_n 17) (<= main_i 12)) (or (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n)))) (< 17 main_n)))} is VALID [2019-01-31 14:31:51,175 INFO L273 TraceCheckUtils]: 6: Hoare triple {4371#(and (or (<= main_n 17) (<= main_i 12)) (or (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n)))) (< 17 main_n)))} assume i <= n * 4; {4371#(and (or (<= main_n 17) (<= main_i 12)) (or (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n)))) (< 17 main_n)))} is VALID [2019-01-31 14:31:51,176 INFO L273 TraceCheckUtils]: 7: Hoare triple {4371#(and (or (<= main_n 17) (<= main_i 12)) (or (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n)))) (< 17 main_n)))} assume a[i] != 23;i := i + 4; {4372#(and (or (<= main_i 16) (<= main_n 17)) (or (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n)))) (< 17 main_n)))} is VALID [2019-01-31 14:31:51,177 INFO L273 TraceCheckUtils]: 8: Hoare triple {4372#(and (or (<= main_i 16) (<= main_n 17)) (or (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n)))) (< 17 main_n)))} assume i <= n * 4; {4372#(and (or (<= main_i 16) (<= main_n 17)) (or (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n)))) (< 17 main_n)))} is VALID [2019-01-31 14:31:51,178 INFO L273 TraceCheckUtils]: 9: Hoare triple {4372#(and (or (<= main_i 16) (<= main_n 17)) (or (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n)))) (< 17 main_n)))} assume a[i] != 23;i := i + 4; {4373#(and (or (< 17 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 20) (<= main_n 17)))} is VALID [2019-01-31 14:31:51,178 INFO L273 TraceCheckUtils]: 10: Hoare triple {4373#(and (or (< 17 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 20) (<= main_n 17)))} assume i <= n * 4; {4373#(and (or (< 17 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 20) (<= main_n 17)))} is VALID [2019-01-31 14:31:51,180 INFO L273 TraceCheckUtils]: 11: Hoare triple {4373#(and (or (< 17 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 20) (<= main_n 17)))} assume a[i] != 23;i := i + 4; {4374#(and (or (<= main_i 24) (<= main_n 17)) (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 17 main_n)))} is VALID [2019-01-31 14:31:51,180 INFO L273 TraceCheckUtils]: 12: Hoare triple {4374#(and (or (<= main_i 24) (<= main_n 17)) (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 17 main_n)))} assume i <= n * 4; {4374#(and (or (<= main_i 24) (<= main_n 17)) (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 17 main_n)))} is VALID [2019-01-31 14:31:51,182 INFO L273 TraceCheckUtils]: 13: Hoare triple {4374#(and (or (<= main_i 24) (<= main_n 17)) (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 17 main_n)))} assume a[i] != 23;i := i + 4; {4375#(and (or (<= main_n 17) (<= main_i 28)) (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 17 main_n)))} is VALID [2019-01-31 14:31:51,182 INFO L273 TraceCheckUtils]: 14: Hoare triple {4375#(and (or (<= main_n 17) (<= main_i 28)) (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 17 main_n)))} assume i <= n * 4; {4375#(and (or (<= main_n 17) (<= main_i 28)) (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 17 main_n)))} is VALID [2019-01-31 14:31:51,184 INFO L273 TraceCheckUtils]: 15: Hoare triple {4375#(and (or (<= main_n 17) (<= main_i 28)) (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 17 main_n)))} assume a[i] != 23;i := i + 4; {4376#(and (or (<= main_i 32) (<= main_n 17)) (or (< 17 main_n) (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:31:51,184 INFO L273 TraceCheckUtils]: 16: Hoare triple {4376#(and (or (<= main_i 32) (<= main_n 17)) (or (< 17 main_n) (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {4376#(and (or (<= main_i 32) (<= main_n 17)) (or (< 17 main_n) (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:31:51,186 INFO L273 TraceCheckUtils]: 17: Hoare triple {4376#(and (or (<= main_i 32) (<= main_n 17)) (or (< 17 main_n) (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {4377#(and (or (<= main_i 36) (<= main_n 17)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i)) (< 17 main_n)))} is VALID [2019-01-31 14:31:51,186 INFO L273 TraceCheckUtils]: 18: Hoare triple {4377#(and (or (<= main_i 36) (<= main_n 17)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i)) (< 17 main_n)))} assume i <= n * 4; {4377#(and (or (<= main_i 36) (<= main_n 17)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i)) (< 17 main_n)))} is VALID [2019-01-31 14:31:51,187 INFO L273 TraceCheckUtils]: 19: Hoare triple {4377#(and (or (<= main_i 36) (<= main_n 17)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i)) (< 17 main_n)))} assume a[i] != 23;i := i + 4; {4378#(and (or (< 17 main_n) (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 40) (<= main_n 17)))} is VALID [2019-01-31 14:31:51,188 INFO L273 TraceCheckUtils]: 20: Hoare triple {4378#(and (or (< 17 main_n) (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 40) (<= main_n 17)))} assume i <= n * 4; {4378#(and (or (< 17 main_n) (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 40) (<= main_n 17)))} is VALID [2019-01-31 14:31:51,189 INFO L273 TraceCheckUtils]: 21: Hoare triple {4378#(and (or (< 17 main_n) (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 40) (<= main_n 17)))} assume a[i] != 23;i := i + 4; {4379#(and (or (<= main_n 17) (<= main_i 44)) (or (< 17 main_n) (and (<= 44 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:31:51,190 INFO L273 TraceCheckUtils]: 22: Hoare triple {4379#(and (or (<= main_n 17) (<= main_i 44)) (or (< 17 main_n) (and (<= 44 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {4379#(and (or (<= main_n 17) (<= main_i 44)) (or (< 17 main_n) (and (<= 44 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:31:51,191 INFO L273 TraceCheckUtils]: 23: Hoare triple {4379#(and (or (<= main_n 17) (<= main_i 44)) (or (< 17 main_n) (and (<= 44 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {4380#(and (or (<= main_i 48) (<= main_n 17)) (or (and (<= 48 main_i) (= 23 (select main_a (* 4 main_n)))) (< 17 main_n)))} is VALID [2019-01-31 14:31:51,192 INFO L273 TraceCheckUtils]: 24: Hoare triple {4380#(and (or (<= main_i 48) (<= main_n 17)) (or (and (<= 48 main_i) (= 23 (select main_a (* 4 main_n)))) (< 17 main_n)))} assume i <= n * 4; {4380#(and (or (<= main_i 48) (<= main_n 17)) (or (and (<= 48 main_i) (= 23 (select main_a (* 4 main_n)))) (< 17 main_n)))} is VALID [2019-01-31 14:31:51,193 INFO L273 TraceCheckUtils]: 25: Hoare triple {4380#(and (or (<= main_i 48) (<= main_n 17)) (or (and (<= 48 main_i) (= 23 (select main_a (* 4 main_n)))) (< 17 main_n)))} assume a[i] != 23;i := i + 4; {4381#(and (or (and (<= 52 main_i) (= 23 (select main_a (* 4 main_n)))) (< 17 main_n)) (or (<= main_i 52) (<= main_n 17)))} is VALID [2019-01-31 14:31:51,194 INFO L273 TraceCheckUtils]: 26: Hoare triple {4381#(and (or (and (<= 52 main_i) (= 23 (select main_a (* 4 main_n)))) (< 17 main_n)) (or (<= main_i 52) (<= main_n 17)))} assume i <= n * 4; {4381#(and (or (and (<= 52 main_i) (= 23 (select main_a (* 4 main_n)))) (< 17 main_n)) (or (<= main_i 52) (<= main_n 17)))} is VALID [2019-01-31 14:31:51,195 INFO L273 TraceCheckUtils]: 27: Hoare triple {4381#(and (or (and (<= 52 main_i) (= 23 (select main_a (* 4 main_n)))) (< 17 main_n)) (or (<= main_i 52) (<= main_n 17)))} assume a[i] != 23;i := i + 4; {4382#(and (or (<= main_i 56) (<= main_n 17)) (or (and (<= 56 main_i) (= 23 (select main_a (* 4 main_n)))) (< 17 main_n)))} is VALID [2019-01-31 14:31:51,196 INFO L273 TraceCheckUtils]: 28: Hoare triple {4382#(and (or (<= main_i 56) (<= main_n 17)) (or (and (<= 56 main_i) (= 23 (select main_a (* 4 main_n)))) (< 17 main_n)))} assume i <= n * 4; {4382#(and (or (<= main_i 56) (<= main_n 17)) (or (and (<= 56 main_i) (= 23 (select main_a (* 4 main_n)))) (< 17 main_n)))} is VALID [2019-01-31 14:31:51,197 INFO L273 TraceCheckUtils]: 29: Hoare triple {4382#(and (or (<= main_i 56) (<= main_n 17)) (or (and (<= 56 main_i) (= 23 (select main_a (* 4 main_n)))) (< 17 main_n)))} assume a[i] != 23;i := i + 4; {4383#(and (or (< 17 main_n) (and (<= 60 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 60) (<= main_n 17)))} is VALID [2019-01-31 14:31:51,198 INFO L273 TraceCheckUtils]: 30: Hoare triple {4383#(and (or (< 17 main_n) (and (<= 60 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 60) (<= main_n 17)))} assume i <= n * 4; {4383#(and (or (< 17 main_n) (and (<= 60 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 60) (<= main_n 17)))} is VALID [2019-01-31 14:31:51,199 INFO L273 TraceCheckUtils]: 31: Hoare triple {4383#(and (or (< 17 main_n) (and (<= 60 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 60) (<= main_n 17)))} assume a[i] != 23;i := i + 4; {4384#(and (or (and (<= 64 main_i) (= 23 (select main_a (* 4 main_n)))) (< 17 main_n)) (or (<= main_i 64) (<= main_n 17)))} is VALID [2019-01-31 14:31:51,200 INFO L273 TraceCheckUtils]: 32: Hoare triple {4384#(and (or (and (<= 64 main_i) (= 23 (select main_a (* 4 main_n)))) (< 17 main_n)) (or (<= main_i 64) (<= main_n 17)))} assume i <= n * 4; {4384#(and (or (and (<= 64 main_i) (= 23 (select main_a (* 4 main_n)))) (< 17 main_n)) (or (<= main_i 64) (<= main_n 17)))} is VALID [2019-01-31 14:31:51,201 INFO L273 TraceCheckUtils]: 33: Hoare triple {4384#(and (or (and (<= 64 main_i) (= 23 (select main_a (* 4 main_n)))) (< 17 main_n)) (or (<= main_i 64) (<= main_n 17)))} assume a[i] != 23;i := i + 4; {4385#(and (or (<= main_n 17) (<= main_i 68)) (or (and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (<= (* 4 main_n) main_i)) (< 17 main_n)))} is VALID [2019-01-31 14:31:51,203 INFO L273 TraceCheckUtils]: 34: Hoare triple {4385#(and (or (<= main_n 17) (<= main_i 68)) (or (and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (<= (* 4 main_n) main_i)) (< 17 main_n)))} assume i <= n * 4; {4386#(and (or (< 17 main_n) (and (<= (* 4 main_n) main_i) (<= main_i (* 4 main_n)) (= 23 (select main_a main_i)))) (<= main_i 68))} is VALID [2019-01-31 14:31:51,204 INFO L273 TraceCheckUtils]: 35: Hoare triple {4386#(and (or (< 17 main_n) (and (<= (* 4 main_n) main_i) (<= main_i (* 4 main_n)) (= 23 (select main_a main_i)))) (<= main_i 68))} assume a[i] != 23;i := i + 4; {4387#(and (< 17 main_n) (<= main_i 72))} is VALID [2019-01-31 14:31:51,204 INFO L273 TraceCheckUtils]: 36: Hoare triple {4387#(and (< 17 main_n) (<= main_i 72))} assume !(i <= n * 4); {4367#false} is VALID [2019-01-31 14:31:51,212 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 14:31:51,212 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-31 14:31:51,212 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-01-31 14:31:51,212 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-01-31 14:31:51,213 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-01-31 14:31:51,213 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-31 14:31:51,213 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 14:31:51,221 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2019-01-31 14:31:51,221 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST2 (IT: FPandBP) [2019-01-31 14:31:51,244 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 18 check-sat command(s) [2019-01-31 14:31:51,244 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-01-31 14:31:51,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-31 14:31:51,255 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-31 14:31:51,274 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 14:31:51,275 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-01-31 14:31:51,281 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-31 14:31:51,281 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2019-01-31 14:31:51,284 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-01-31 14:31:51,284 WARN L398 uantifierElimination]: Input elimination task: ∃ [v_main_a_21]. (and (= (store v_main_a_21 (* 4 main_n) 23) main_a) (= main_i 0)) [2019-01-31 14:31:51,284 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2019-01-31 14:31:52,417 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2019-01-31 14:31:52,419 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-01-31 14:31:52,424 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-31 14:31:52,425 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2019-01-31 14:31:52,426 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-01-31 14:31:52,427 WARN L398 uantifierElimination]: Input elimination task: ∃ [main_a]. (let ((.cse0 (* 4 main_n))) (and (<= main_i 72) (= 23 (select main_a .cse0)) (<= 68 .cse0) (not (= (select main_a 68) 23)))) [2019-01-31 14:31:52,427 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (let ((.cse0 (* 4 main_n))) (and (not (= 68 .cse0)) (<= main_i 72) (<= 68 .cse0))) [2019-01-31 14:31:52,454 INFO L273 TraceCheckUtils]: 0: Hoare triple {4366#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {4391#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:52,454 INFO L273 TraceCheckUtils]: 1: Hoare triple {4391#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {4395#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2019-01-31 14:31:52,455 INFO L273 TraceCheckUtils]: 2: Hoare triple {4395#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume i <= n * 4; {4395#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2019-01-31 14:31:52,456 INFO L273 TraceCheckUtils]: 3: Hoare triple {4395#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume a[i] != 23;i := i + 4; {4402#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:52,456 INFO L273 TraceCheckUtils]: 4: Hoare triple {4402#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {4402#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:52,457 INFO L273 TraceCheckUtils]: 5: Hoare triple {4402#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {4409#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2019-01-31 14:31:52,458 INFO L273 TraceCheckUtils]: 6: Hoare triple {4409#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume i <= n * 4; {4409#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2019-01-31 14:31:52,458 INFO L273 TraceCheckUtils]: 7: Hoare triple {4409#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume a[i] != 23;i := i + 4; {4416#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:52,459 INFO L273 TraceCheckUtils]: 8: Hoare triple {4416#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {4416#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:52,460 INFO L273 TraceCheckUtils]: 9: Hoare triple {4416#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {4423#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:52,461 INFO L273 TraceCheckUtils]: 10: Hoare triple {4423#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {4423#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:52,462 INFO L273 TraceCheckUtils]: 11: Hoare triple {4423#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {4430#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:52,463 INFO L273 TraceCheckUtils]: 12: Hoare triple {4430#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {4430#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:52,463 INFO L273 TraceCheckUtils]: 13: Hoare triple {4430#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {4437#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:52,464 INFO L273 TraceCheckUtils]: 14: Hoare triple {4437#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {4437#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:52,465 INFO L273 TraceCheckUtils]: 15: Hoare triple {4437#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {4444#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:52,466 INFO L273 TraceCheckUtils]: 16: Hoare triple {4444#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {4444#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:52,466 INFO L273 TraceCheckUtils]: 17: Hoare triple {4444#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {4451#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:52,467 INFO L273 TraceCheckUtils]: 18: Hoare triple {4451#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {4451#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:52,468 INFO L273 TraceCheckUtils]: 19: Hoare triple {4451#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {4458#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:52,468 INFO L273 TraceCheckUtils]: 20: Hoare triple {4458#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {4458#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:52,469 INFO L273 TraceCheckUtils]: 21: Hoare triple {4458#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {4465#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:52,470 INFO L273 TraceCheckUtils]: 22: Hoare triple {4465#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {4465#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:52,471 INFO L273 TraceCheckUtils]: 23: Hoare triple {4465#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {4472#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:52,471 INFO L273 TraceCheckUtils]: 24: Hoare triple {4472#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {4472#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:52,472 INFO L273 TraceCheckUtils]: 25: Hoare triple {4472#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {4479#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:52,473 INFO L273 TraceCheckUtils]: 26: Hoare triple {4479#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {4479#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:52,474 INFO L273 TraceCheckUtils]: 27: Hoare triple {4479#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {4486#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:52,474 INFO L273 TraceCheckUtils]: 28: Hoare triple {4486#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {4486#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:52,475 INFO L273 TraceCheckUtils]: 29: Hoare triple {4486#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {4493#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:52,476 INFO L273 TraceCheckUtils]: 30: Hoare triple {4493#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {4493#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:52,476 INFO L273 TraceCheckUtils]: 31: Hoare triple {4493#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {4500#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:52,477 INFO L273 TraceCheckUtils]: 32: Hoare triple {4500#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {4500#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:52,478 INFO L273 TraceCheckUtils]: 33: Hoare triple {4500#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {4507#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:52,479 INFO L273 TraceCheckUtils]: 34: Hoare triple {4507#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {4511#(and (<= main_i (* 4 main_n)) (= main_i 68) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:52,480 INFO L273 TraceCheckUtils]: 35: Hoare triple {4511#(and (<= main_i (* 4 main_n)) (= main_i 68) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {4387#(and (< 17 main_n) (<= main_i 72))} is VALID [2019-01-31 14:31:52,480 INFO L273 TraceCheckUtils]: 36: Hoare triple {4387#(and (< 17 main_n) (<= main_i 72))} assume !(i <= n * 4); {4367#false} is VALID [2019-01-31 14:31:52,485 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 14:31:52,485 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2019-01-31 14:31:53,694 INFO L273 TraceCheckUtils]: 36: Hoare triple {4518#(<= main_i (* 4 main_n))} assume !(i <= n * 4); {4367#false} is VALID [2019-01-31 14:31:53,695 INFO L273 TraceCheckUtils]: 35: Hoare triple {4522#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} assume a[i] != 23;i := i + 4; {4518#(<= main_i (* 4 main_n))} is VALID [2019-01-31 14:31:53,696 INFO L273 TraceCheckUtils]: 34: Hoare triple {4526#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} assume i <= n * 4; {4522#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} is VALID [2019-01-31 14:31:53,697 INFO L273 TraceCheckUtils]: 33: Hoare triple {4530#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume a[i] != 23;i := i + 4; {4526#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} is VALID [2019-01-31 14:31:53,697 INFO L273 TraceCheckUtils]: 32: Hoare triple {4530#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume i <= n * 4; {4530#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2019-01-31 14:31:53,699 INFO L273 TraceCheckUtils]: 31: Hoare triple {4537#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume a[i] != 23;i := i + 4; {4530#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2019-01-31 14:31:53,699 INFO L273 TraceCheckUtils]: 30: Hoare triple {4537#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume i <= n * 4; {4537#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2019-01-31 14:31:53,700 INFO L273 TraceCheckUtils]: 29: Hoare triple {4544#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume a[i] != 23;i := i + 4; {4537#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2019-01-31 14:31:53,701 INFO L273 TraceCheckUtils]: 28: Hoare triple {4544#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume i <= n * 4; {4544#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2019-01-31 14:31:53,702 INFO L273 TraceCheckUtils]: 27: Hoare triple {4551#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume a[i] != 23;i := i + 4; {4544#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2019-01-31 14:31:53,703 INFO L273 TraceCheckUtils]: 26: Hoare triple {4551#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume i <= n * 4; {4551#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2019-01-31 14:31:53,704 INFO L273 TraceCheckUtils]: 25: Hoare triple {4558#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {4551#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2019-01-31 14:31:53,704 INFO L273 TraceCheckUtils]: 24: Hoare triple {4558#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume i <= n * 4; {4558#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2019-01-31 14:31:53,705 INFO L273 TraceCheckUtils]: 23: Hoare triple {4565#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume a[i] != 23;i := i + 4; {4558#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2019-01-31 14:31:53,706 INFO L273 TraceCheckUtils]: 22: Hoare triple {4565#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume i <= n * 4; {4565#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2019-01-31 14:31:53,707 INFO L273 TraceCheckUtils]: 21: Hoare triple {4572#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {4565#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2019-01-31 14:31:53,708 INFO L273 TraceCheckUtils]: 20: Hoare triple {4572#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume i <= n * 4; {4572#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2019-01-31 14:31:53,709 INFO L273 TraceCheckUtils]: 19: Hoare triple {4579#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {4572#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2019-01-31 14:31:53,709 INFO L273 TraceCheckUtils]: 18: Hoare triple {4579#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume i <= n * 4; {4579#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2019-01-31 14:31:53,711 INFO L273 TraceCheckUtils]: 17: Hoare triple {4586#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {4579#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2019-01-31 14:31:53,711 INFO L273 TraceCheckUtils]: 16: Hoare triple {4586#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume i <= n * 4; {4586#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2019-01-31 14:31:53,712 INFO L273 TraceCheckUtils]: 15: Hoare triple {4593#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} assume a[i] != 23;i := i + 4; {4586#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2019-01-31 14:31:53,713 INFO L273 TraceCheckUtils]: 14: Hoare triple {4593#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} assume i <= n * 4; {4593#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} is VALID [2019-01-31 14:31:53,714 INFO L273 TraceCheckUtils]: 13: Hoare triple {4600#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {4593#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} is VALID [2019-01-31 14:31:53,715 INFO L273 TraceCheckUtils]: 12: Hoare triple {4600#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} assume i <= n * 4; {4600#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} is VALID [2019-01-31 14:31:53,716 INFO L273 TraceCheckUtils]: 11: Hoare triple {4607#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {4600#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} is VALID [2019-01-31 14:31:53,716 INFO L273 TraceCheckUtils]: 10: Hoare triple {4607#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} assume i <= n * 4; {4607#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} is VALID [2019-01-31 14:31:53,718 INFO L273 TraceCheckUtils]: 9: Hoare triple {4614#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} assume a[i] != 23;i := i + 4; {4607#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} is VALID [2019-01-31 14:31:53,718 INFO L273 TraceCheckUtils]: 8: Hoare triple {4614#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} assume i <= n * 4; {4614#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} is VALID [2019-01-31 14:31:53,719 INFO L273 TraceCheckUtils]: 7: Hoare triple {4621#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {4614#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} is VALID [2019-01-31 14:31:53,720 INFO L273 TraceCheckUtils]: 6: Hoare triple {4621#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} assume i <= n * 4; {4621#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} is VALID [2019-01-31 14:31:53,721 INFO L273 TraceCheckUtils]: 5: Hoare triple {4628#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} assume a[i] != 23;i := i + 4; {4621#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} is VALID [2019-01-31 14:31:53,721 INFO L273 TraceCheckUtils]: 4: Hoare triple {4628#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} assume i <= n * 4; {4628#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} is VALID [2019-01-31 14:31:53,723 INFO L273 TraceCheckUtils]: 3: Hoare triple {4635#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} assume a[i] != 23;i := i + 4; {4628#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} is VALID [2019-01-31 14:31:53,723 INFO L273 TraceCheckUtils]: 2: Hoare triple {4635#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} assume i <= n * 4; {4635#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} is VALID [2019-01-31 14:31:53,724 INFO L273 TraceCheckUtils]: 1: Hoare triple {4642#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} assume a[i] != 23;i := i + 4; {4635#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} is VALID [2019-01-31 14:31:53,725 INFO L273 TraceCheckUtils]: 0: Hoare triple {4366#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {4642#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} is VALID [2019-01-31 14:31:53,732 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 14:31:53,750 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-01-31 14:31:53,750 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 20, 20] total 59 [2019-01-31 14:31:53,750 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-01-31 14:31:53,750 INFO L78 Accepts]: Start accepts. Automaton has 41 states. Word has length 37 [2019-01-31 14:31:53,751 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-01-31 14:31:53,751 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 41 states. [2019-01-31 14:31:53,876 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 73 edges. 73 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-01-31 14:31:53,876 INFO L459 AbstractCegarLoop]: Interpolant automaton has 41 states [2019-01-31 14:31:53,877 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2019-01-31 14:31:53,878 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=508, Invalid=3152, Unknown=0, NotChecked=0, Total=3660 [2019-01-31 14:31:53,878 INFO L87 Difference]: Start difference. First operand 38 states and 38 transitions. Second operand 41 states. [2019-01-31 14:31:56,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 14:31:56,125 INFO L93 Difference]: Finished difference Result 42 states and 42 transitions. [2019-01-31 14:31:56,125 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2019-01-31 14:31:56,125 INFO L78 Accepts]: Start accepts. Automaton has 41 states. Word has length 37 [2019-01-31 14:31:56,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-31 14:31:56,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2019-01-31 14:31:56,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 42 transitions. [2019-01-31 14:31:56,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2019-01-31 14:31:56,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 42 transitions. [2019-01-31 14:31:56,127 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 22 states and 42 transitions. [2019-01-31 14:31:56,172 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 14:31:56,173 INFO L225 Difference]: With dead ends: 42 [2019-01-31 14:31:56,173 INFO L226 Difference]: Without dead ends: 41 [2019-01-31 14:31:56,174 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 32 SyntacticMatches, 1 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 836 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=508, Invalid=3152, Unknown=0, NotChecked=0, Total=3660 [2019-01-31 14:31:56,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2019-01-31 14:31:56,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 40. [2019-01-31 14:31:56,261 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-01-31 14:31:56,261 INFO L82 GeneralOperation]: Start isEquivalent. First operand 41 states. Second operand 40 states. [2019-01-31 14:31:56,262 INFO L74 IsIncluded]: Start isIncluded. First operand 41 states. Second operand 40 states. [2019-01-31 14:31:56,262 INFO L87 Difference]: Start difference. First operand 41 states. Second operand 40 states. [2019-01-31 14:31:56,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 14:31:56,263 INFO L93 Difference]: Finished difference Result 41 states and 41 transitions. [2019-01-31 14:31:56,264 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 41 transitions. [2019-01-31 14:31:56,264 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-31 14:31:56,264 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-01-31 14:31:56,264 INFO L74 IsIncluded]: Start isIncluded. First operand 40 states. Second operand 41 states. [2019-01-31 14:31:56,264 INFO L87 Difference]: Start difference. First operand 40 states. Second operand 41 states. [2019-01-31 14:31:56,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 14:31:56,265 INFO L93 Difference]: Finished difference Result 41 states and 41 transitions. [2019-01-31 14:31:56,265 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 41 transitions. [2019-01-31 14:31:56,266 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-31 14:31:56,266 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-01-31 14:31:56,266 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-01-31 14:31:56,266 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-01-31 14:31:56,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2019-01-31 14:31:56,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 40 transitions. [2019-01-31 14:31:56,267 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 40 transitions. Word has length 37 [2019-01-31 14:31:56,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-31 14:31:56,267 INFO L480 AbstractCegarLoop]: Abstraction has 40 states and 40 transitions. [2019-01-31 14:31:56,268 INFO L481 AbstractCegarLoop]: Interpolant automaton has 41 states. [2019-01-31 14:31:56,268 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 40 transitions. [2019-01-31 14:31:56,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2019-01-31 14:31:56,268 INFO L394 BasicCegarLoop]: Found error trace [2019-01-31 14:31:56,268 INFO L402 BasicCegarLoop]: trace histogram [19, 18, 1, 1] [2019-01-31 14:31:56,269 INFO L423 AbstractCegarLoop]: === Iteration 19 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-01-31 14:31:56,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-31 14:31:56,269 INFO L82 PathProgramCache]: Analyzing trace with hash 1291894020, now seen corresponding path program 18 times [2019-01-31 14:31:56,269 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-01-31 14:31:56,270 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-31 14:31:56,270 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-01-31 14:31:56,270 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-31 14:31:56,270 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-01-31 14:31:56,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-31 14:31:56,586 WARN L181 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 18 [2019-01-31 14:31:57,549 INFO L273 TraceCheckUtils]: 0: Hoare triple {4848#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {4850#(and (or (<= main_n 18) (<= main_i 0)) (or (and (<= 0 main_i) (= 23 (select main_a (* 4 main_n)))) (< 18 main_n)))} is VALID [2019-01-31 14:31:57,551 INFO L273 TraceCheckUtils]: 1: Hoare triple {4850#(and (or (<= main_n 18) (<= main_i 0)) (or (and (<= 0 main_i) (= 23 (select main_a (* 4 main_n)))) (< 18 main_n)))} assume a[i] != 23;i := i + 4; {4851#(and (or (< 18 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i))) (or (<= main_n 18) (<= main_i 4)))} is VALID [2019-01-31 14:31:57,552 INFO L273 TraceCheckUtils]: 2: Hoare triple {4851#(and (or (< 18 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i))) (or (<= main_n 18) (<= main_i 4)))} assume i <= n * 4; {4851#(and (or (< 18 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i))) (or (<= main_n 18) (<= main_i 4)))} is VALID [2019-01-31 14:31:57,553 INFO L273 TraceCheckUtils]: 3: Hoare triple {4851#(and (or (< 18 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i))) (or (<= main_n 18) (<= main_i 4)))} assume a[i] != 23;i := i + 4; {4852#(and (or (<= main_n 18) (<= main_i 8)) (or (< 18 main_n) (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:31:57,553 INFO L273 TraceCheckUtils]: 4: Hoare triple {4852#(and (or (<= main_n 18) (<= main_i 8)) (or (< 18 main_n) (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {4852#(and (or (<= main_n 18) (<= main_i 8)) (or (< 18 main_n) (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:31:57,554 INFO L273 TraceCheckUtils]: 5: Hoare triple {4852#(and (or (<= main_n 18) (<= main_i 8)) (or (< 18 main_n) (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {4853#(and (or (< 18 main_n) (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 18) (<= main_i 12)))} is VALID [2019-01-31 14:31:57,555 INFO L273 TraceCheckUtils]: 6: Hoare triple {4853#(and (or (< 18 main_n) (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 18) (<= main_i 12)))} assume i <= n * 4; {4853#(and (or (< 18 main_n) (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 18) (<= main_i 12)))} is VALID [2019-01-31 14:31:57,556 INFO L273 TraceCheckUtils]: 7: Hoare triple {4853#(and (or (< 18 main_n) (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 18) (<= main_i 12)))} assume a[i] != 23;i := i + 4; {4854#(and (or (<= main_n 18) (<= main_i 16)) (or (< 18 main_n) (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:31:57,557 INFO L273 TraceCheckUtils]: 8: Hoare triple {4854#(and (or (<= main_n 18) (<= main_i 16)) (or (< 18 main_n) (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {4854#(and (or (<= main_n 18) (<= main_i 16)) (or (< 18 main_n) (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:31:57,558 INFO L273 TraceCheckUtils]: 9: Hoare triple {4854#(and (or (<= main_n 18) (<= main_i 16)) (or (< 18 main_n) (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {4855#(and (or (<= main_n 18) (<= main_i 20)) (or (< 18 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:31:57,559 INFO L273 TraceCheckUtils]: 10: Hoare triple {4855#(and (or (<= main_n 18) (<= main_i 20)) (or (< 18 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {4855#(and (or (<= main_n 18) (<= main_i 20)) (or (< 18 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:31:57,560 INFO L273 TraceCheckUtils]: 11: Hoare triple {4855#(and (or (<= main_n 18) (<= main_i 20)) (or (< 18 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {4856#(and (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 18 main_n)) (or (<= main_n 18) (<= main_i 24)))} is VALID [2019-01-31 14:31:57,561 INFO L273 TraceCheckUtils]: 12: Hoare triple {4856#(and (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 18 main_n)) (or (<= main_n 18) (<= main_i 24)))} assume i <= n * 4; {4856#(and (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 18 main_n)) (or (<= main_n 18) (<= main_i 24)))} is VALID [2019-01-31 14:31:57,562 INFO L273 TraceCheckUtils]: 13: Hoare triple {4856#(and (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 18 main_n)) (or (<= main_n 18) (<= main_i 24)))} assume a[i] != 23;i := i + 4; {4857#(and (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 18 main_n)) (or (<= main_n 18) (<= main_i 28)))} is VALID [2019-01-31 14:31:57,563 INFO L273 TraceCheckUtils]: 14: Hoare triple {4857#(and (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 18 main_n)) (or (<= main_n 18) (<= main_i 28)))} assume i <= n * 4; {4857#(and (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 18 main_n)) (or (<= main_n 18) (<= main_i 28)))} is VALID [2019-01-31 14:31:57,564 INFO L273 TraceCheckUtils]: 15: Hoare triple {4857#(and (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 18 main_n)) (or (<= main_n 18) (<= main_i 28)))} assume a[i] != 23;i := i + 4; {4858#(and (or (< 18 main_n) (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 32) (<= main_n 18)))} is VALID [2019-01-31 14:31:57,564 INFO L273 TraceCheckUtils]: 16: Hoare triple {4858#(and (or (< 18 main_n) (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 32) (<= main_n 18)))} assume i <= n * 4; {4858#(and (or (< 18 main_n) (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 32) (<= main_n 18)))} is VALID [2019-01-31 14:31:57,566 INFO L273 TraceCheckUtils]: 17: Hoare triple {4858#(and (or (< 18 main_n) (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 32) (<= main_n 18)))} assume a[i] != 23;i := i + 4; {4859#(and (or (<= main_n 18) (<= main_i 36)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i)) (< 18 main_n)))} is VALID [2019-01-31 14:31:57,566 INFO L273 TraceCheckUtils]: 18: Hoare triple {4859#(and (or (<= main_n 18) (<= main_i 36)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i)) (< 18 main_n)))} assume i <= n * 4; {4859#(and (or (<= main_n 18) (<= main_i 36)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i)) (< 18 main_n)))} is VALID [2019-01-31 14:31:57,567 INFO L273 TraceCheckUtils]: 19: Hoare triple {4859#(and (or (<= main_n 18) (<= main_i 36)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i)) (< 18 main_n)))} assume a[i] != 23;i := i + 4; {4860#(and (or (< 18 main_n) (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 18) (<= main_i 40)))} is VALID [2019-01-31 14:31:57,568 INFO L273 TraceCheckUtils]: 20: Hoare triple {4860#(and (or (< 18 main_n) (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 18) (<= main_i 40)))} assume i <= n * 4; {4860#(and (or (< 18 main_n) (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 18) (<= main_i 40)))} is VALID [2019-01-31 14:31:57,569 INFO L273 TraceCheckUtils]: 21: Hoare triple {4860#(and (or (< 18 main_n) (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 18) (<= main_i 40)))} assume a[i] != 23;i := i + 4; {4861#(and (or (< 18 main_n) (and (<= 44 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 18) (<= main_i 44)))} is VALID [2019-01-31 14:31:57,570 INFO L273 TraceCheckUtils]: 22: Hoare triple {4861#(and (or (< 18 main_n) (and (<= 44 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 18) (<= main_i 44)))} assume i <= n * 4; {4861#(and (or (< 18 main_n) (and (<= 44 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 18) (<= main_i 44)))} is VALID [2019-01-31 14:31:57,571 INFO L273 TraceCheckUtils]: 23: Hoare triple {4861#(and (or (< 18 main_n) (and (<= 44 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 18) (<= main_i 44)))} assume a[i] != 23;i := i + 4; {4862#(and (or (<= main_n 18) (<= main_i 48)) (or (and (<= 48 main_i) (= 23 (select main_a (* 4 main_n)))) (< 18 main_n)))} is VALID [2019-01-31 14:31:57,572 INFO L273 TraceCheckUtils]: 24: Hoare triple {4862#(and (or (<= main_n 18) (<= main_i 48)) (or (and (<= 48 main_i) (= 23 (select main_a (* 4 main_n)))) (< 18 main_n)))} assume i <= n * 4; {4862#(and (or (<= main_n 18) (<= main_i 48)) (or (and (<= 48 main_i) (= 23 (select main_a (* 4 main_n)))) (< 18 main_n)))} is VALID [2019-01-31 14:31:57,573 INFO L273 TraceCheckUtils]: 25: Hoare triple {4862#(and (or (<= main_n 18) (<= main_i 48)) (or (and (<= 48 main_i) (= 23 (select main_a (* 4 main_n)))) (< 18 main_n)))} assume a[i] != 23;i := i + 4; {4863#(and (or (<= main_n 18) (<= main_i 52)) (or (and (<= 52 main_i) (= 23 (select main_a (* 4 main_n)))) (< 18 main_n)))} is VALID [2019-01-31 14:31:57,574 INFO L273 TraceCheckUtils]: 26: Hoare triple {4863#(and (or (<= main_n 18) (<= main_i 52)) (or (and (<= 52 main_i) (= 23 (select main_a (* 4 main_n)))) (< 18 main_n)))} assume i <= n * 4; {4863#(and (or (<= main_n 18) (<= main_i 52)) (or (and (<= 52 main_i) (= 23 (select main_a (* 4 main_n)))) (< 18 main_n)))} is VALID [2019-01-31 14:31:57,575 INFO L273 TraceCheckUtils]: 27: Hoare triple {4863#(and (or (<= main_n 18) (<= main_i 52)) (or (and (<= 52 main_i) (= 23 (select main_a (* 4 main_n)))) (< 18 main_n)))} assume a[i] != 23;i := i + 4; {4864#(and (or (< 18 main_n) (and (<= 56 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 18) (<= main_i 56)))} is VALID [2019-01-31 14:31:57,576 INFO L273 TraceCheckUtils]: 28: Hoare triple {4864#(and (or (< 18 main_n) (and (<= 56 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 18) (<= main_i 56)))} assume i <= n * 4; {4864#(and (or (< 18 main_n) (and (<= 56 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 18) (<= main_i 56)))} is VALID [2019-01-31 14:31:57,577 INFO L273 TraceCheckUtils]: 29: Hoare triple {4864#(and (or (< 18 main_n) (and (<= 56 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 18) (<= main_i 56)))} assume a[i] != 23;i := i + 4; {4865#(and (or (<= main_n 18) (<= main_i 60)) (or (< 18 main_n) (and (<= 60 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:31:57,578 INFO L273 TraceCheckUtils]: 30: Hoare triple {4865#(and (or (<= main_n 18) (<= main_i 60)) (or (< 18 main_n) (and (<= 60 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {4865#(and (or (<= main_n 18) (<= main_i 60)) (or (< 18 main_n) (and (<= 60 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:31:57,579 INFO L273 TraceCheckUtils]: 31: Hoare triple {4865#(and (or (<= main_n 18) (<= main_i 60)) (or (< 18 main_n) (and (<= 60 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {4866#(and (or (< 18 main_n) (and (<= 64 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 18) (<= main_i 64)))} is VALID [2019-01-31 14:31:57,579 INFO L273 TraceCheckUtils]: 32: Hoare triple {4866#(and (or (< 18 main_n) (and (<= 64 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 18) (<= main_i 64)))} assume i <= n * 4; {4866#(and (or (< 18 main_n) (and (<= 64 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 18) (<= main_i 64)))} is VALID [2019-01-31 14:31:57,580 INFO L273 TraceCheckUtils]: 33: Hoare triple {4866#(and (or (< 18 main_n) (and (<= 64 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 18) (<= main_i 64)))} assume a[i] != 23;i := i + 4; {4867#(and (or (<= main_n 18) (<= main_i 68)) (or (and (<= 68 main_i) (= 23 (select main_a (* 4 main_n)))) (< 18 main_n)))} is VALID [2019-01-31 14:31:57,581 INFO L273 TraceCheckUtils]: 34: Hoare triple {4867#(and (or (<= main_n 18) (<= main_i 68)) (or (and (<= 68 main_i) (= 23 (select main_a (* 4 main_n)))) (< 18 main_n)))} assume i <= n * 4; {4867#(and (or (<= main_n 18) (<= main_i 68)) (or (and (<= 68 main_i) (= 23 (select main_a (* 4 main_n)))) (< 18 main_n)))} is VALID [2019-01-31 14:31:57,582 INFO L273 TraceCheckUtils]: 35: Hoare triple {4867#(and (or (<= main_n 18) (<= main_i 68)) (or (and (<= 68 main_i) (= 23 (select main_a (* 4 main_n)))) (< 18 main_n)))} assume a[i] != 23;i := i + 4; {4868#(and (or (and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (<= (* 4 main_n) main_i)) (< 18 main_n)) (or (<= main_n 18) (<= main_i 72)))} is VALID [2019-01-31 14:31:57,584 INFO L273 TraceCheckUtils]: 36: Hoare triple {4868#(and (or (and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (<= (* 4 main_n) main_i)) (< 18 main_n)) (or (<= main_n 18) (<= main_i 72)))} assume i <= n * 4; {4869#(and (<= main_i 72) (or (< 18 main_n) (and (<= (* 4 main_n) main_i) (<= main_i (* 4 main_n)) (= 23 (select main_a main_i)))))} is VALID [2019-01-31 14:31:57,584 INFO L273 TraceCheckUtils]: 37: Hoare triple {4869#(and (<= main_i 72) (or (< 18 main_n) (and (<= (* 4 main_n) main_i) (<= main_i (* 4 main_n)) (= 23 (select main_a main_i)))))} assume a[i] != 23;i := i + 4; {4870#(and (<= main_i 76) (<= 19 main_n))} is VALID [2019-01-31 14:31:57,585 INFO L273 TraceCheckUtils]: 38: Hoare triple {4870#(and (<= main_i 76) (<= 19 main_n))} assume !(i <= n * 4); {4849#false} is VALID [2019-01-31 14:31:57,593 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 14:31:57,593 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-31 14:31:57,594 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-01-31 14:31:57,594 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-01-31 14:31:57,594 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-01-31 14:31:57,594 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-31 14:31:57,594 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 14:31:57,602 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2019-01-31 14:31:57,602 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder TERMS_WITH_SMALL_CONSTANTS_FIRST (IT: FPandBP) [2019-01-31 14:31:57,613 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-01-31 14:31:57,614 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-01-31 14:31:57,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-31 14:31:57,629 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-31 14:31:57,641 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 14:31:57,646 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-01-31 14:31:57,655 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-31 14:31:57,656 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2019-01-31 14:31:57,657 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-01-31 14:31:57,657 WARN L398 uantifierElimination]: Input elimination task: ∃ [v_main_a_22]. (and (= (store v_main_a_22 (* 4 main_n) 23) main_a) (= main_i 0)) [2019-01-31 14:31:57,658 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2019-01-31 14:31:58,572 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2019-01-31 14:31:58,576 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-01-31 14:31:58,580 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-31 14:31:58,581 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2019-01-31 14:31:58,583 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-01-31 14:31:58,584 WARN L398 uantifierElimination]: Input elimination task: ∃ [main_a]. (let ((.cse0 (* 4 main_n))) (and (not (= 23 (select main_a 72))) (<= main_i 76) (<= 72 .cse0) (= 23 (select main_a .cse0)))) [2019-01-31 14:31:58,584 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (let ((.cse0 (* 4 main_n))) (and (<= main_i 76) (<= 72 .cse0) (not (= 72 .cse0)))) [2019-01-31 14:31:58,613 INFO L273 TraceCheckUtils]: 0: Hoare triple {4848#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {4874#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:58,614 INFO L273 TraceCheckUtils]: 1: Hoare triple {4874#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {4878#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2019-01-31 14:31:58,614 INFO L273 TraceCheckUtils]: 2: Hoare triple {4878#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume i <= n * 4; {4878#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2019-01-31 14:31:58,615 INFO L273 TraceCheckUtils]: 3: Hoare triple {4878#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume a[i] != 23;i := i + 4; {4885#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:58,616 INFO L273 TraceCheckUtils]: 4: Hoare triple {4885#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {4885#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:58,616 INFO L273 TraceCheckUtils]: 5: Hoare triple {4885#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {4892#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2019-01-31 14:31:58,617 INFO L273 TraceCheckUtils]: 6: Hoare triple {4892#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume i <= n * 4; {4892#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2019-01-31 14:31:58,618 INFO L273 TraceCheckUtils]: 7: Hoare triple {4892#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume a[i] != 23;i := i + 4; {4899#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:58,618 INFO L273 TraceCheckUtils]: 8: Hoare triple {4899#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {4899#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:58,619 INFO L273 TraceCheckUtils]: 9: Hoare triple {4899#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {4906#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:58,620 INFO L273 TraceCheckUtils]: 10: Hoare triple {4906#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {4906#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:58,620 INFO L273 TraceCheckUtils]: 11: Hoare triple {4906#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {4913#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:58,621 INFO L273 TraceCheckUtils]: 12: Hoare triple {4913#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {4913#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:58,622 INFO L273 TraceCheckUtils]: 13: Hoare triple {4913#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {4920#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:58,623 INFO L273 TraceCheckUtils]: 14: Hoare triple {4920#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {4920#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:58,623 INFO L273 TraceCheckUtils]: 15: Hoare triple {4920#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {4927#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:58,624 INFO L273 TraceCheckUtils]: 16: Hoare triple {4927#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {4927#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:58,625 INFO L273 TraceCheckUtils]: 17: Hoare triple {4927#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {4934#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:58,625 INFO L273 TraceCheckUtils]: 18: Hoare triple {4934#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {4934#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:58,626 INFO L273 TraceCheckUtils]: 19: Hoare triple {4934#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {4941#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:58,627 INFO L273 TraceCheckUtils]: 20: Hoare triple {4941#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {4941#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:58,627 INFO L273 TraceCheckUtils]: 21: Hoare triple {4941#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {4948#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:58,628 INFO L273 TraceCheckUtils]: 22: Hoare triple {4948#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {4948#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:58,629 INFO L273 TraceCheckUtils]: 23: Hoare triple {4948#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {4955#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:58,629 INFO L273 TraceCheckUtils]: 24: Hoare triple {4955#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {4955#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:58,630 INFO L273 TraceCheckUtils]: 25: Hoare triple {4955#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {4962#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:58,631 INFO L273 TraceCheckUtils]: 26: Hoare triple {4962#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {4962#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:58,632 INFO L273 TraceCheckUtils]: 27: Hoare triple {4962#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {4969#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:58,632 INFO L273 TraceCheckUtils]: 28: Hoare triple {4969#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {4969#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:58,633 INFO L273 TraceCheckUtils]: 29: Hoare triple {4969#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {4976#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:58,634 INFO L273 TraceCheckUtils]: 30: Hoare triple {4976#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {4976#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:58,634 INFO L273 TraceCheckUtils]: 31: Hoare triple {4976#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {4983#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:58,635 INFO L273 TraceCheckUtils]: 32: Hoare triple {4983#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {4983#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:58,636 INFO L273 TraceCheckUtils]: 33: Hoare triple {4983#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {4990#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:58,636 INFO L273 TraceCheckUtils]: 34: Hoare triple {4990#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {4990#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:58,637 INFO L273 TraceCheckUtils]: 35: Hoare triple {4990#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {4997#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:58,638 INFO L273 TraceCheckUtils]: 36: Hoare triple {4997#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {5001#(and (= main_i 72) (<= main_i (* 4 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:31:58,639 INFO L273 TraceCheckUtils]: 37: Hoare triple {5001#(and (= main_i 72) (<= main_i (* 4 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {4870#(and (<= main_i 76) (<= 19 main_n))} is VALID [2019-01-31 14:31:58,639 INFO L273 TraceCheckUtils]: 38: Hoare triple {4870#(and (<= main_i 76) (<= 19 main_n))} assume !(i <= n * 4); {4849#false} is VALID [2019-01-31 14:31:58,645 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 14:31:58,645 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2019-01-31 14:32:00,022 INFO L273 TraceCheckUtils]: 38: Hoare triple {5008#(<= main_i (* 4 main_n))} assume !(i <= n * 4); {4849#false} is VALID [2019-01-31 14:32:00,024 INFO L273 TraceCheckUtils]: 37: Hoare triple {5012#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} assume a[i] != 23;i := i + 4; {5008#(<= main_i (* 4 main_n))} is VALID [2019-01-31 14:32:00,025 INFO L273 TraceCheckUtils]: 36: Hoare triple {5016#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} assume i <= n * 4; {5012#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} is VALID [2019-01-31 14:32:00,026 INFO L273 TraceCheckUtils]: 35: Hoare triple {5020#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume a[i] != 23;i := i + 4; {5016#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} is VALID [2019-01-31 14:32:00,026 INFO L273 TraceCheckUtils]: 34: Hoare triple {5020#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume i <= n * 4; {5020#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2019-01-31 14:32:00,028 INFO L273 TraceCheckUtils]: 33: Hoare triple {5027#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume a[i] != 23;i := i + 4; {5020#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2019-01-31 14:32:00,028 INFO L273 TraceCheckUtils]: 32: Hoare triple {5027#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume i <= n * 4; {5027#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2019-01-31 14:32:00,029 INFO L273 TraceCheckUtils]: 31: Hoare triple {5034#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume a[i] != 23;i := i + 4; {5027#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2019-01-31 14:32:00,030 INFO L273 TraceCheckUtils]: 30: Hoare triple {5034#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume i <= n * 4; {5034#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2019-01-31 14:32:00,031 INFO L273 TraceCheckUtils]: 29: Hoare triple {5041#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume a[i] != 23;i := i + 4; {5034#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2019-01-31 14:32:00,032 INFO L273 TraceCheckUtils]: 28: Hoare triple {5041#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume i <= n * 4; {5041#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2019-01-31 14:32:00,033 INFO L273 TraceCheckUtils]: 27: Hoare triple {5048#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {5041#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2019-01-31 14:32:00,034 INFO L273 TraceCheckUtils]: 26: Hoare triple {5048#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume i <= n * 4; {5048#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2019-01-31 14:32:00,035 INFO L273 TraceCheckUtils]: 25: Hoare triple {5055#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume a[i] != 23;i := i + 4; {5048#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2019-01-31 14:32:00,036 INFO L273 TraceCheckUtils]: 24: Hoare triple {5055#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume i <= n * 4; {5055#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2019-01-31 14:32:00,037 INFO L273 TraceCheckUtils]: 23: Hoare triple {5062#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {5055#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2019-01-31 14:32:00,037 INFO L273 TraceCheckUtils]: 22: Hoare triple {5062#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume i <= n * 4; {5062#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2019-01-31 14:32:00,039 INFO L273 TraceCheckUtils]: 21: Hoare triple {5069#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {5062#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2019-01-31 14:32:00,039 INFO L273 TraceCheckUtils]: 20: Hoare triple {5069#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume i <= n * 4; {5069#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2019-01-31 14:32:00,040 INFO L273 TraceCheckUtils]: 19: Hoare triple {5076#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {5069#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2019-01-31 14:32:00,041 INFO L273 TraceCheckUtils]: 18: Hoare triple {5076#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume i <= n * 4; {5076#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2019-01-31 14:32:00,042 INFO L273 TraceCheckUtils]: 17: Hoare triple {5083#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} assume a[i] != 23;i := i + 4; {5076#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2019-01-31 14:32:00,043 INFO L273 TraceCheckUtils]: 16: Hoare triple {5083#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} assume i <= n * 4; {5083#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} is VALID [2019-01-31 14:32:00,044 INFO L273 TraceCheckUtils]: 15: Hoare triple {5090#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {5083#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} is VALID [2019-01-31 14:32:00,045 INFO L273 TraceCheckUtils]: 14: Hoare triple {5090#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} assume i <= n * 4; {5090#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} is VALID [2019-01-31 14:32:00,046 INFO L273 TraceCheckUtils]: 13: Hoare triple {5097#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {5090#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} is VALID [2019-01-31 14:32:00,046 INFO L273 TraceCheckUtils]: 12: Hoare triple {5097#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} assume i <= n * 4; {5097#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} is VALID [2019-01-31 14:32:00,047 INFO L273 TraceCheckUtils]: 11: Hoare triple {5104#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} assume a[i] != 23;i := i + 4; {5097#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} is VALID [2019-01-31 14:32:00,048 INFO L273 TraceCheckUtils]: 10: Hoare triple {5104#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} assume i <= n * 4; {5104#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} is VALID [2019-01-31 14:32:00,049 INFO L273 TraceCheckUtils]: 9: Hoare triple {5111#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {5104#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} is VALID [2019-01-31 14:32:00,050 INFO L273 TraceCheckUtils]: 8: Hoare triple {5111#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} assume i <= n * 4; {5111#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} is VALID [2019-01-31 14:32:00,051 INFO L273 TraceCheckUtils]: 7: Hoare triple {5118#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} assume a[i] != 23;i := i + 4; {5111#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} is VALID [2019-01-31 14:32:00,052 INFO L273 TraceCheckUtils]: 6: Hoare triple {5118#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} assume i <= n * 4; {5118#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} is VALID [2019-01-31 14:32:00,053 INFO L273 TraceCheckUtils]: 5: Hoare triple {5125#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} assume a[i] != 23;i := i + 4; {5118#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} is VALID [2019-01-31 14:32:00,053 INFO L273 TraceCheckUtils]: 4: Hoare triple {5125#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} assume i <= n * 4; {5125#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} is VALID [2019-01-31 14:32:00,055 INFO L273 TraceCheckUtils]: 3: Hoare triple {5132#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} assume a[i] != 23;i := i + 4; {5125#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} is VALID [2019-01-31 14:32:00,055 INFO L273 TraceCheckUtils]: 2: Hoare triple {5132#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} assume i <= n * 4; {5132#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} is VALID [2019-01-31 14:32:00,057 INFO L273 TraceCheckUtils]: 1: Hoare triple {5139#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} assume a[i] != 23;i := i + 4; {5132#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} is VALID [2019-01-31 14:32:00,058 INFO L273 TraceCheckUtils]: 0: Hoare triple {4848#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {5139#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} is VALID [2019-01-31 14:32:00,065 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 14:32:00,085 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-01-31 14:32:00,085 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 21, 21] total 62 [2019-01-31 14:32:00,085 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-01-31 14:32:00,086 INFO L78 Accepts]: Start accepts. Automaton has 43 states. Word has length 39 [2019-01-31 14:32:00,086 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-01-31 14:32:00,086 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 43 states. [2019-01-31 14:32:00,225 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 14:32:00,225 INFO L459 AbstractCegarLoop]: Interpolant automaton has 43 states [2019-01-31 14:32:00,225 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2019-01-31 14:32:00,227 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=554, Invalid=3478, Unknown=0, NotChecked=0, Total=4032 [2019-01-31 14:32:00,227 INFO L87 Difference]: Start difference. First operand 40 states and 40 transitions. Second operand 43 states. [2019-01-31 14:32:03,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 14:32:03,152 INFO L93 Difference]: Finished difference Result 44 states and 44 transitions. [2019-01-31 14:32:03,152 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2019-01-31 14:32:03,152 INFO L78 Accepts]: Start accepts. Automaton has 43 states. Word has length 39 [2019-01-31 14:32:03,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-31 14:32:03,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2019-01-31 14:32:03,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 44 transitions. [2019-01-31 14:32:03,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2019-01-31 14:32:03,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 44 transitions. [2019-01-31 14:32:03,155 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 23 states and 44 transitions. [2019-01-31 14:32:03,223 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 14:32:03,224 INFO L225 Difference]: With dead ends: 44 [2019-01-31 14:32:03,224 INFO L226 Difference]: Without dead ends: 43 [2019-01-31 14:32:03,226 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 34 SyntacticMatches, 1 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 920 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=554, Invalid=3478, Unknown=0, NotChecked=0, Total=4032 [2019-01-31 14:32:03,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2019-01-31 14:32:03,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 42. [2019-01-31 14:32:03,263 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-01-31 14:32:03,264 INFO L82 GeneralOperation]: Start isEquivalent. First operand 43 states. Second operand 42 states. [2019-01-31 14:32:03,264 INFO L74 IsIncluded]: Start isIncluded. First operand 43 states. Second operand 42 states. [2019-01-31 14:32:03,264 INFO L87 Difference]: Start difference. First operand 43 states. Second operand 42 states. [2019-01-31 14:32:03,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 14:32:03,265 INFO L93 Difference]: Finished difference Result 43 states and 43 transitions. [2019-01-31 14:32:03,266 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 43 transitions. [2019-01-31 14:32:03,266 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-31 14:32:03,266 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-01-31 14:32:03,266 INFO L74 IsIncluded]: Start isIncluded. First operand 42 states. Second operand 43 states. [2019-01-31 14:32:03,266 INFO L87 Difference]: Start difference. First operand 42 states. Second operand 43 states. [2019-01-31 14:32:03,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 14:32:03,267 INFO L93 Difference]: Finished difference Result 43 states and 43 transitions. [2019-01-31 14:32:03,267 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 43 transitions. [2019-01-31 14:32:03,268 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-31 14:32:03,268 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-01-31 14:32:03,268 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-01-31 14:32:03,268 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-01-31 14:32:03,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2019-01-31 14:32:03,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 42 transitions. [2019-01-31 14:32:03,269 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 42 transitions. Word has length 39 [2019-01-31 14:32:03,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-31 14:32:03,269 INFO L480 AbstractCegarLoop]: Abstraction has 42 states and 42 transitions. [2019-01-31 14:32:03,269 INFO L481 AbstractCegarLoop]: Interpolant automaton has 43 states. [2019-01-31 14:32:03,269 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 42 transitions. [2019-01-31 14:32:03,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2019-01-31 14:32:03,270 INFO L394 BasicCegarLoop]: Found error trace [2019-01-31 14:32:03,270 INFO L402 BasicCegarLoop]: trace histogram [20, 19, 1, 1] [2019-01-31 14:32:03,270 INFO L423 AbstractCegarLoop]: === Iteration 20 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-01-31 14:32:03,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-31 14:32:03,270 INFO L82 PathProgramCache]: Analyzing trace with hash 264605766, now seen corresponding path program 19 times [2019-01-31 14:32:03,271 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-01-31 14:32:03,271 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-31 14:32:03,271 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-01-31 14:32:03,271 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-31 14:32:03,272 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-01-31 14:32:03,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-31 14:32:04,405 INFO L273 TraceCheckUtils]: 0: Hoare triple {5355#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {5357#(and (or (< 19 main_n) (<= 0 main_i)) (or (<= main_n 19) (<= main_i 0)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:04,406 INFO L273 TraceCheckUtils]: 1: Hoare triple {5357#(and (or (< 19 main_n) (<= 0 main_i)) (or (<= main_n 19) (<= main_i 0)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {5358#(and (or (<= main_n 19) (<= main_i 4)) (or (< 19 main_n) (<= 4 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:04,407 INFO L273 TraceCheckUtils]: 2: Hoare triple {5358#(and (or (<= main_n 19) (<= main_i 4)) (or (< 19 main_n) (<= 4 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {5358#(and (or (<= main_n 19) (<= main_i 4)) (or (< 19 main_n) (<= 4 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:04,408 INFO L273 TraceCheckUtils]: 3: Hoare triple {5358#(and (or (<= main_n 19) (<= main_i 4)) (or (< 19 main_n) (<= 4 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {5359#(and (or (< 19 main_n) (<= 8 main_i)) (or (<= main_i 8) (<= main_n 19)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:04,409 INFO L273 TraceCheckUtils]: 4: Hoare triple {5359#(and (or (< 19 main_n) (<= 8 main_i)) (or (<= main_i 8) (<= main_n 19)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {5359#(and (or (< 19 main_n) (<= 8 main_i)) (or (<= main_i 8) (<= main_n 19)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:04,410 INFO L273 TraceCheckUtils]: 5: Hoare triple {5359#(and (or (< 19 main_n) (<= 8 main_i)) (or (<= main_i 8) (<= main_n 19)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {5360#(and (or (<= main_n 19) (<= main_i 12)) (= 23 (select main_a (* 4 main_n))) (or (< 19 main_n) (<= 12 main_i)))} is VALID [2019-01-31 14:32:04,411 INFO L273 TraceCheckUtils]: 6: Hoare triple {5360#(and (or (<= main_n 19) (<= main_i 12)) (= 23 (select main_a (* 4 main_n))) (or (< 19 main_n) (<= 12 main_i)))} assume i <= n * 4; {5360#(and (or (<= main_n 19) (<= main_i 12)) (= 23 (select main_a (* 4 main_n))) (or (< 19 main_n) (<= 12 main_i)))} is VALID [2019-01-31 14:32:04,412 INFO L273 TraceCheckUtils]: 7: Hoare triple {5360#(and (or (<= main_n 19) (<= main_i 12)) (= 23 (select main_a (* 4 main_n))) (or (< 19 main_n) (<= 12 main_i)))} assume a[i] != 23;i := i + 4; {5361#(and (or (< 19 main_n) (<= 16 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 19) (<= main_i 16)))} is VALID [2019-01-31 14:32:04,413 INFO L273 TraceCheckUtils]: 8: Hoare triple {5361#(and (or (< 19 main_n) (<= 16 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 19) (<= main_i 16)))} assume i <= n * 4; {5361#(and (or (< 19 main_n) (<= 16 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 19) (<= main_i 16)))} is VALID [2019-01-31 14:32:04,414 INFO L273 TraceCheckUtils]: 9: Hoare triple {5361#(and (or (< 19 main_n) (<= 16 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 19) (<= main_i 16)))} assume a[i] != 23;i := i + 4; {5362#(and (or (<= main_n 19) (<= main_i 20)) (or (< 19 main_n) (<= 20 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:04,414 INFO L273 TraceCheckUtils]: 10: Hoare triple {5362#(and (or (<= main_n 19) (<= main_i 20)) (or (< 19 main_n) (<= 20 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {5362#(and (or (<= main_n 19) (<= main_i 20)) (or (< 19 main_n) (<= 20 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:04,415 INFO L273 TraceCheckUtils]: 11: Hoare triple {5362#(and (or (<= main_n 19) (<= main_i 20)) (or (< 19 main_n) (<= 20 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {5363#(and (or (< 19 main_n) (<= 24 main_i)) (or (<= main_n 19) (<= main_i 24)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:04,416 INFO L273 TraceCheckUtils]: 12: Hoare triple {5363#(and (or (< 19 main_n) (<= 24 main_i)) (or (<= main_n 19) (<= main_i 24)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {5363#(and (or (< 19 main_n) (<= 24 main_i)) (or (<= main_n 19) (<= main_i 24)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:04,417 INFO L273 TraceCheckUtils]: 13: Hoare triple {5363#(and (or (< 19 main_n) (<= 24 main_i)) (or (<= main_n 19) (<= main_i 24)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {5364#(and (or (<= main_n 19) (<= main_i 28)) (or (< 19 main_n) (<= 28 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:04,418 INFO L273 TraceCheckUtils]: 14: Hoare triple {5364#(and (or (<= main_n 19) (<= main_i 28)) (or (< 19 main_n) (<= 28 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {5364#(and (or (<= main_n 19) (<= main_i 28)) (or (< 19 main_n) (<= 28 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:04,419 INFO L273 TraceCheckUtils]: 15: Hoare triple {5364#(and (or (<= main_n 19) (<= main_i 28)) (or (< 19 main_n) (<= 28 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {5365#(and (or (< 19 main_n) (<= 32 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 32) (<= main_n 19)))} is VALID [2019-01-31 14:32:04,420 INFO L273 TraceCheckUtils]: 16: Hoare triple {5365#(and (or (< 19 main_n) (<= 32 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 32) (<= main_n 19)))} assume i <= n * 4; {5365#(and (or (< 19 main_n) (<= 32 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 32) (<= main_n 19)))} is VALID [2019-01-31 14:32:04,421 INFO L273 TraceCheckUtils]: 17: Hoare triple {5365#(and (or (< 19 main_n) (<= 32 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 32) (<= main_n 19)))} assume a[i] != 23;i := i + 4; {5366#(and (or (<= main_i 36) (<= main_n 19)) (or (< 19 main_n) (<= 36 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:04,422 INFO L273 TraceCheckUtils]: 18: Hoare triple {5366#(and (or (<= main_i 36) (<= main_n 19)) (or (< 19 main_n) (<= 36 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {5366#(and (or (<= main_i 36) (<= main_n 19)) (or (< 19 main_n) (<= 36 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:04,423 INFO L273 TraceCheckUtils]: 19: Hoare triple {5366#(and (or (<= main_i 36) (<= main_n 19)) (or (< 19 main_n) (<= 36 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {5367#(and (or (< 19 main_n) (<= 40 main_i)) (or (<= main_i 40) (<= main_n 19)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:04,423 INFO L273 TraceCheckUtils]: 20: Hoare triple {5367#(and (or (< 19 main_n) (<= 40 main_i)) (or (<= main_i 40) (<= main_n 19)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {5367#(and (or (< 19 main_n) (<= 40 main_i)) (or (<= main_i 40) (<= main_n 19)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:04,424 INFO L273 TraceCheckUtils]: 21: Hoare triple {5367#(and (or (< 19 main_n) (<= 40 main_i)) (or (<= main_i 40) (<= main_n 19)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {5368#(and (or (<= main_n 19) (<= main_i 44)) (or (< 19 main_n) (<= 44 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:04,425 INFO L273 TraceCheckUtils]: 22: Hoare triple {5368#(and (or (<= main_n 19) (<= main_i 44)) (or (< 19 main_n) (<= 44 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {5368#(and (or (<= main_n 19) (<= main_i 44)) (or (< 19 main_n) (<= 44 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:04,426 INFO L273 TraceCheckUtils]: 23: Hoare triple {5368#(and (or (<= main_n 19) (<= main_i 44)) (or (< 19 main_n) (<= 44 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {5369#(and (or (<= main_n 19) (<= main_i 48)) (or (< 19 main_n) (<= 48 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:04,427 INFO L273 TraceCheckUtils]: 24: Hoare triple {5369#(and (or (<= main_n 19) (<= main_i 48)) (or (< 19 main_n) (<= 48 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {5369#(and (or (<= main_n 19) (<= main_i 48)) (or (< 19 main_n) (<= 48 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:04,428 INFO L273 TraceCheckUtils]: 25: Hoare triple {5369#(and (or (<= main_n 19) (<= main_i 48)) (or (< 19 main_n) (<= 48 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {5370#(and (or (< 19 main_n) (<= 52 main_i)) (or (<= main_i 52) (<= main_n 19)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:04,429 INFO L273 TraceCheckUtils]: 26: Hoare triple {5370#(and (or (< 19 main_n) (<= 52 main_i)) (or (<= main_i 52) (<= main_n 19)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {5370#(and (or (< 19 main_n) (<= 52 main_i)) (or (<= main_i 52) (<= main_n 19)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:04,430 INFO L273 TraceCheckUtils]: 27: Hoare triple {5370#(and (or (< 19 main_n) (<= 52 main_i)) (or (<= main_i 52) (<= main_n 19)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {5371#(and (or (<= main_n 19) (<= main_i 56)) (or (< 19 main_n) (<= 56 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:04,431 INFO L273 TraceCheckUtils]: 28: Hoare triple {5371#(and (or (<= main_n 19) (<= main_i 56)) (or (< 19 main_n) (<= 56 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {5371#(and (or (<= main_n 19) (<= main_i 56)) (or (< 19 main_n) (<= 56 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:04,432 INFO L273 TraceCheckUtils]: 29: Hoare triple {5371#(and (or (<= main_n 19) (<= main_i 56)) (or (< 19 main_n) (<= 56 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {5372#(and (or (< 19 main_n) (<= 60 main_i)) (or (<= main_n 19) (<= main_i 60)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:04,432 INFO L273 TraceCheckUtils]: 30: Hoare triple {5372#(and (or (< 19 main_n) (<= 60 main_i)) (or (<= main_n 19) (<= main_i 60)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {5372#(and (or (< 19 main_n) (<= 60 main_i)) (or (<= main_n 19) (<= main_i 60)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:04,433 INFO L273 TraceCheckUtils]: 31: Hoare triple {5372#(and (or (< 19 main_n) (<= 60 main_i)) (or (<= main_n 19) (<= main_i 60)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {5373#(and (or (< 19 main_n) (<= 64 main_i)) (or (<= main_n 19) (<= main_i 64)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:04,434 INFO L273 TraceCheckUtils]: 32: Hoare triple {5373#(and (or (< 19 main_n) (<= 64 main_i)) (or (<= main_n 19) (<= main_i 64)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {5373#(and (or (< 19 main_n) (<= 64 main_i)) (or (<= main_n 19) (<= main_i 64)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:04,435 INFO L273 TraceCheckUtils]: 33: Hoare triple {5373#(and (or (< 19 main_n) (<= 64 main_i)) (or (<= main_n 19) (<= main_i 64)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {5374#(and (or (< 19 main_n) (<= 68 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 19) (<= main_i 68)))} is VALID [2019-01-31 14:32:04,436 INFO L273 TraceCheckUtils]: 34: Hoare triple {5374#(and (or (< 19 main_n) (<= 68 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 19) (<= main_i 68)))} assume i <= n * 4; {5374#(and (or (< 19 main_n) (<= 68 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 19) (<= main_i 68)))} is VALID [2019-01-31 14:32:04,437 INFO L273 TraceCheckUtils]: 35: Hoare triple {5374#(and (or (< 19 main_n) (<= 68 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 19) (<= main_i 68)))} assume a[i] != 23;i := i + 4; {5375#(and (or (<= main_n 19) (<= main_i 72)) (or (< 19 main_n) (<= 72 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:04,438 INFO L273 TraceCheckUtils]: 36: Hoare triple {5375#(and (or (<= main_n 19) (<= main_i 72)) (or (< 19 main_n) (<= 72 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {5375#(and (or (<= main_n 19) (<= main_i 72)) (or (< 19 main_n) (<= 72 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:04,439 INFO L273 TraceCheckUtils]: 37: Hoare triple {5375#(and (or (<= main_n 19) (<= main_i 72)) (or (< 19 main_n) (<= 72 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {5376#(and (or (= (* 4 main_n) main_i) (and (or (<= main_i 76) (<= main_n 19)) (or (< 19 main_n) (<= (* 4 main_n) main_i)))) (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))))} is VALID [2019-01-31 14:32:04,440 INFO L273 TraceCheckUtils]: 38: Hoare triple {5376#(and (or (= (* 4 main_n) main_i) (and (or (<= main_i 76) (<= main_n 19)) (or (< 19 main_n) (<= (* 4 main_n) main_i)))) (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))))} assume i <= n * 4; {5377#(and (or (= (* 4 main_n) main_i) (and (<= main_i 76) (< 19 main_n))) (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))))} is VALID [2019-01-31 14:32:04,441 INFO L273 TraceCheckUtils]: 39: Hoare triple {5377#(and (or (= (* 4 main_n) main_i) (and (<= main_i 76) (< 19 main_n))) (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))))} assume a[i] != 23;i := i + 4; {5378#(and (<= 20 main_n) (<= main_i 80))} is VALID [2019-01-31 14:32:04,442 INFO L273 TraceCheckUtils]: 40: Hoare triple {5378#(and (<= 20 main_n) (<= main_i 80))} assume !(i <= n * 4); {5356#false} is VALID [2019-01-31 14:32:04,451 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 14:32:04,451 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-31 14:32:04,451 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-01-31 14:32:04,451 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-01-31 14:32:04,451 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-01-31 14:32:04,451 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-31 14:32:04,451 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 14:32:04,460 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-31 14:32:04,461 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2019-01-31 14:32:04,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-31 14:32:04,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-31 14:32:04,484 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-31 14:32:04,491 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 14:32:04,492 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-01-31 14:32:04,498 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-31 14:32:04,498 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2019-01-31 14:32:04,500 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-01-31 14:32:04,500 WARN L398 uantifierElimination]: Input elimination task: ∃ [v_main_a_23]. (and (= main_i 0) (= (store v_main_a_23 (* 4 main_n) 23) main_a)) [2019-01-31 14:32:04,500 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2019-01-31 14:32:05,305 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2019-01-31 14:32:05,313 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-01-31 14:32:05,319 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-31 14:32:05,319 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2019-01-31 14:32:05,322 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-01-31 14:32:05,322 WARN L398 uantifierElimination]: Input elimination task: ∃ [main_a]. (let ((.cse0 (* 4 main_n))) (and (<= 76 .cse0) (not (= (select main_a 76) 23)) (= 23 (select main_a .cse0)) (<= main_i 80))) [2019-01-31 14:32:05,322 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (let ((.cse0 (* 4 main_n))) (and (<= 76 .cse0) (not (= 76 .cse0)) (<= main_i 80))) [2019-01-31 14:32:05,349 INFO L273 TraceCheckUtils]: 0: Hoare triple {5355#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {5382#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:05,350 INFO L273 TraceCheckUtils]: 1: Hoare triple {5382#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {5386#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2019-01-31 14:32:05,350 INFO L273 TraceCheckUtils]: 2: Hoare triple {5386#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume i <= n * 4; {5386#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2019-01-31 14:32:05,351 INFO L273 TraceCheckUtils]: 3: Hoare triple {5386#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume a[i] != 23;i := i + 4; {5393#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:05,351 INFO L273 TraceCheckUtils]: 4: Hoare triple {5393#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {5393#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:05,351 INFO L273 TraceCheckUtils]: 5: Hoare triple {5393#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {5400#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2019-01-31 14:32:05,352 INFO L273 TraceCheckUtils]: 6: Hoare triple {5400#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume i <= n * 4; {5400#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2019-01-31 14:32:05,352 INFO L273 TraceCheckUtils]: 7: Hoare triple {5400#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume a[i] != 23;i := i + 4; {5407#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:05,353 INFO L273 TraceCheckUtils]: 8: Hoare triple {5407#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {5407#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:05,354 INFO L273 TraceCheckUtils]: 9: Hoare triple {5407#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {5414#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:05,354 INFO L273 TraceCheckUtils]: 10: Hoare triple {5414#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {5414#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:05,355 INFO L273 TraceCheckUtils]: 11: Hoare triple {5414#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {5421#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:05,356 INFO L273 TraceCheckUtils]: 12: Hoare triple {5421#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {5421#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:05,357 INFO L273 TraceCheckUtils]: 13: Hoare triple {5421#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {5428#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:05,357 INFO L273 TraceCheckUtils]: 14: Hoare triple {5428#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {5428#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:05,358 INFO L273 TraceCheckUtils]: 15: Hoare triple {5428#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {5435#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:05,359 INFO L273 TraceCheckUtils]: 16: Hoare triple {5435#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {5435#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:05,359 INFO L273 TraceCheckUtils]: 17: Hoare triple {5435#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {5442#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:05,360 INFO L273 TraceCheckUtils]: 18: Hoare triple {5442#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {5442#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:05,361 INFO L273 TraceCheckUtils]: 19: Hoare triple {5442#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {5449#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:05,361 INFO L273 TraceCheckUtils]: 20: Hoare triple {5449#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {5449#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:05,362 INFO L273 TraceCheckUtils]: 21: Hoare triple {5449#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {5456#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:05,363 INFO L273 TraceCheckUtils]: 22: Hoare triple {5456#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {5456#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:05,363 INFO L273 TraceCheckUtils]: 23: Hoare triple {5456#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {5463#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:05,364 INFO L273 TraceCheckUtils]: 24: Hoare triple {5463#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {5463#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:05,365 INFO L273 TraceCheckUtils]: 25: Hoare triple {5463#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {5470#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:05,366 INFO L273 TraceCheckUtils]: 26: Hoare triple {5470#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {5470#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:05,366 INFO L273 TraceCheckUtils]: 27: Hoare triple {5470#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {5477#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:05,367 INFO L273 TraceCheckUtils]: 28: Hoare triple {5477#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {5477#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:05,368 INFO L273 TraceCheckUtils]: 29: Hoare triple {5477#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {5484#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:05,368 INFO L273 TraceCheckUtils]: 30: Hoare triple {5484#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {5484#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:05,369 INFO L273 TraceCheckUtils]: 31: Hoare triple {5484#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {5491#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:05,370 INFO L273 TraceCheckUtils]: 32: Hoare triple {5491#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {5491#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:05,370 INFO L273 TraceCheckUtils]: 33: Hoare triple {5491#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {5498#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:05,371 INFO L273 TraceCheckUtils]: 34: Hoare triple {5498#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {5498#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:05,372 INFO L273 TraceCheckUtils]: 35: Hoare triple {5498#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {5505#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:05,372 INFO L273 TraceCheckUtils]: 36: Hoare triple {5505#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {5505#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:05,373 INFO L273 TraceCheckUtils]: 37: Hoare triple {5505#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {5512#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:05,374 INFO L273 TraceCheckUtils]: 38: Hoare triple {5512#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {5516#(and (= main_i 76) (<= main_i (* 4 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:05,375 INFO L273 TraceCheckUtils]: 39: Hoare triple {5516#(and (= main_i 76) (<= main_i (* 4 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {5378#(and (<= 20 main_n) (<= main_i 80))} is VALID [2019-01-31 14:32:05,376 INFO L273 TraceCheckUtils]: 40: Hoare triple {5378#(and (<= 20 main_n) (<= main_i 80))} assume !(i <= n * 4); {5356#false} is VALID [2019-01-31 14:32:05,382 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 14:32:05,382 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2019-01-31 14:32:06,783 INFO L273 TraceCheckUtils]: 40: Hoare triple {5523#(<= main_i (* 4 main_n))} assume !(i <= n * 4); {5356#false} is VALID [2019-01-31 14:32:06,784 INFO L273 TraceCheckUtils]: 39: Hoare triple {5527#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} assume a[i] != 23;i := i + 4; {5523#(<= main_i (* 4 main_n))} is VALID [2019-01-31 14:32:06,785 INFO L273 TraceCheckUtils]: 38: Hoare triple {5531#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} assume i <= n * 4; {5527#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} is VALID [2019-01-31 14:32:06,786 INFO L273 TraceCheckUtils]: 37: Hoare triple {5535#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume a[i] != 23;i := i + 4; {5531#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} is VALID [2019-01-31 14:32:06,786 INFO L273 TraceCheckUtils]: 36: Hoare triple {5535#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume i <= n * 4; {5535#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2019-01-31 14:32:06,787 INFO L273 TraceCheckUtils]: 35: Hoare triple {5542#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume a[i] != 23;i := i + 4; {5535#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2019-01-31 14:32:06,787 INFO L273 TraceCheckUtils]: 34: Hoare triple {5542#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume i <= n * 4; {5542#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2019-01-31 14:32:06,788 INFO L273 TraceCheckUtils]: 33: Hoare triple {5549#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume a[i] != 23;i := i + 4; {5542#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2019-01-31 14:32:06,789 INFO L273 TraceCheckUtils]: 32: Hoare triple {5549#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume i <= n * 4; {5549#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2019-01-31 14:32:06,790 INFO L273 TraceCheckUtils]: 31: Hoare triple {5556#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume a[i] != 23;i := i + 4; {5549#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2019-01-31 14:32:06,790 INFO L273 TraceCheckUtils]: 30: Hoare triple {5556#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume i <= n * 4; {5556#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2019-01-31 14:32:06,792 INFO L273 TraceCheckUtils]: 29: Hoare triple {5563#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {5556#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2019-01-31 14:32:06,792 INFO L273 TraceCheckUtils]: 28: Hoare triple {5563#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume i <= n * 4; {5563#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2019-01-31 14:32:06,793 INFO L273 TraceCheckUtils]: 27: Hoare triple {5570#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume a[i] != 23;i := i + 4; {5563#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2019-01-31 14:32:06,794 INFO L273 TraceCheckUtils]: 26: Hoare triple {5570#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume i <= n * 4; {5570#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2019-01-31 14:32:06,795 INFO L273 TraceCheckUtils]: 25: Hoare triple {5577#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {5570#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2019-01-31 14:32:06,796 INFO L273 TraceCheckUtils]: 24: Hoare triple {5577#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume i <= n * 4; {5577#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2019-01-31 14:32:06,797 INFO L273 TraceCheckUtils]: 23: Hoare triple {5584#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {5577#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2019-01-31 14:32:06,797 INFO L273 TraceCheckUtils]: 22: Hoare triple {5584#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume i <= n * 4; {5584#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2019-01-31 14:32:06,799 INFO L273 TraceCheckUtils]: 21: Hoare triple {5591#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {5584#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2019-01-31 14:32:06,799 INFO L273 TraceCheckUtils]: 20: Hoare triple {5591#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume i <= n * 4; {5591#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2019-01-31 14:32:06,800 INFO L273 TraceCheckUtils]: 19: Hoare triple {5598#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} assume a[i] != 23;i := i + 4; {5591#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2019-01-31 14:32:06,801 INFO L273 TraceCheckUtils]: 18: Hoare triple {5598#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} assume i <= n * 4; {5598#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} is VALID [2019-01-31 14:32:06,802 INFO L273 TraceCheckUtils]: 17: Hoare triple {5605#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {5598#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} is VALID [2019-01-31 14:32:06,803 INFO L273 TraceCheckUtils]: 16: Hoare triple {5605#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} assume i <= n * 4; {5605#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} is VALID [2019-01-31 14:32:06,804 INFO L273 TraceCheckUtils]: 15: Hoare triple {5612#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {5605#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} is VALID [2019-01-31 14:32:06,804 INFO L273 TraceCheckUtils]: 14: Hoare triple {5612#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} assume i <= n * 4; {5612#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} is VALID [2019-01-31 14:32:06,806 INFO L273 TraceCheckUtils]: 13: Hoare triple {5619#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} assume a[i] != 23;i := i + 4; {5612#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} is VALID [2019-01-31 14:32:06,806 INFO L273 TraceCheckUtils]: 12: Hoare triple {5619#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} assume i <= n * 4; {5619#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} is VALID [2019-01-31 14:32:06,807 INFO L273 TraceCheckUtils]: 11: Hoare triple {5626#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {5619#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} is VALID [2019-01-31 14:32:06,808 INFO L273 TraceCheckUtils]: 10: Hoare triple {5626#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} assume i <= n * 4; {5626#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} is VALID [2019-01-31 14:32:06,809 INFO L273 TraceCheckUtils]: 9: Hoare triple {5633#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} assume a[i] != 23;i := i + 4; {5626#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} is VALID [2019-01-31 14:32:06,810 INFO L273 TraceCheckUtils]: 8: Hoare triple {5633#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} assume i <= n * 4; {5633#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} is VALID [2019-01-31 14:32:06,811 INFO L273 TraceCheckUtils]: 7: Hoare triple {5640#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} assume a[i] != 23;i := i + 4; {5633#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} is VALID [2019-01-31 14:32:06,811 INFO L273 TraceCheckUtils]: 6: Hoare triple {5640#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} assume i <= n * 4; {5640#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} is VALID [2019-01-31 14:32:06,813 INFO L273 TraceCheckUtils]: 5: Hoare triple {5647#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} assume a[i] != 23;i := i + 4; {5640#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} is VALID [2019-01-31 14:32:06,813 INFO L273 TraceCheckUtils]: 4: Hoare triple {5647#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} assume i <= n * 4; {5647#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} is VALID [2019-01-31 14:32:06,814 INFO L273 TraceCheckUtils]: 3: Hoare triple {5654#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} assume a[i] != 23;i := i + 4; {5647#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} is VALID [2019-01-31 14:32:06,815 INFO L273 TraceCheckUtils]: 2: Hoare triple {5654#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} assume i <= n * 4; {5654#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} is VALID [2019-01-31 14:32:06,816 INFO L273 TraceCheckUtils]: 1: Hoare triple {5661#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} assume a[i] != 23;i := i + 4; {5654#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} is VALID [2019-01-31 14:32:06,817 INFO L273 TraceCheckUtils]: 0: Hoare triple {5355#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {5661#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} is VALID [2019-01-31 14:32:06,825 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 14:32:06,844 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-01-31 14:32:06,845 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 22, 22] total 65 [2019-01-31 14:32:06,845 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-01-31 14:32:06,845 INFO L78 Accepts]: Start accepts. Automaton has 45 states. Word has length 41 [2019-01-31 14:32:06,845 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-01-31 14:32:06,845 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 45 states. [2019-01-31 14:32:06,945 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 14:32:06,946 INFO L459 AbstractCegarLoop]: Interpolant automaton has 45 states [2019-01-31 14:32:06,946 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2019-01-31 14:32:06,947 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=602, Invalid=3820, Unknown=0, NotChecked=0, Total=4422 [2019-01-31 14:32:06,947 INFO L87 Difference]: Start difference. First operand 42 states and 42 transitions. Second operand 45 states. [2019-01-31 14:32:10,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 14:32:10,477 INFO L93 Difference]: Finished difference Result 46 states and 46 transitions. [2019-01-31 14:32:10,478 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2019-01-31 14:32:10,478 INFO L78 Accepts]: Start accepts. Automaton has 45 states. Word has length 41 [2019-01-31 14:32:10,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-31 14:32:10,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2019-01-31 14:32:10,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 46 transitions. [2019-01-31 14:32:10,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2019-01-31 14:32:10,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 46 transitions. [2019-01-31 14:32:10,480 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 24 states and 46 transitions. [2019-01-31 14:32:10,534 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 14:32:10,535 INFO L225 Difference]: With dead ends: 46 [2019-01-31 14:32:10,535 INFO L226 Difference]: Without dead ends: 45 [2019-01-31 14:32:10,536 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 36 SyntacticMatches, 1 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1008 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=602, Invalid=3820, Unknown=0, NotChecked=0, Total=4422 [2019-01-31 14:32:10,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2019-01-31 14:32:10,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 44. [2019-01-31 14:32:10,582 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-01-31 14:32:10,582 INFO L82 GeneralOperation]: Start isEquivalent. First operand 45 states. Second operand 44 states. [2019-01-31 14:32:10,582 INFO L74 IsIncluded]: Start isIncluded. First operand 45 states. Second operand 44 states. [2019-01-31 14:32:10,582 INFO L87 Difference]: Start difference. First operand 45 states. Second operand 44 states. [2019-01-31 14:32:10,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 14:32:10,583 INFO L93 Difference]: Finished difference Result 45 states and 45 transitions. [2019-01-31 14:32:10,583 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 45 transitions. [2019-01-31 14:32:10,584 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-31 14:32:10,584 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-01-31 14:32:10,584 INFO L74 IsIncluded]: Start isIncluded. First operand 44 states. Second operand 45 states. [2019-01-31 14:32:10,584 INFO L87 Difference]: Start difference. First operand 44 states. Second operand 45 states. [2019-01-31 14:32:10,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 14:32:10,585 INFO L93 Difference]: Finished difference Result 45 states and 45 transitions. [2019-01-31 14:32:10,585 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 45 transitions. [2019-01-31 14:32:10,585 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-31 14:32:10,585 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-01-31 14:32:10,585 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-01-31 14:32:10,585 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-01-31 14:32:10,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2019-01-31 14:32:10,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 44 transitions. [2019-01-31 14:32:10,586 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 44 transitions. Word has length 41 [2019-01-31 14:32:10,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-31 14:32:10,586 INFO L480 AbstractCegarLoop]: Abstraction has 44 states and 44 transitions. [2019-01-31 14:32:10,586 INFO L481 AbstractCegarLoop]: Interpolant automaton has 45 states. [2019-01-31 14:32:10,586 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 44 transitions. [2019-01-31 14:32:10,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2019-01-31 14:32:10,587 INFO L394 BasicCegarLoop]: Found error trace [2019-01-31 14:32:10,587 INFO L402 BasicCegarLoop]: trace histogram [21, 20, 1, 1] [2019-01-31 14:32:10,587 INFO L423 AbstractCegarLoop]: === Iteration 21 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-01-31 14:32:10,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-31 14:32:10,587 INFO L82 PathProgramCache]: Analyzing trace with hash 883071752, now seen corresponding path program 20 times [2019-01-31 14:32:10,587 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-01-31 14:32:10,588 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-31 14:32:10,588 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-31 14:32:10,588 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-31 14:32:10,588 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-01-31 14:32:10,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-31 14:32:11,538 INFO L273 TraceCheckUtils]: 0: Hoare triple {5887#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {5889#(and (or (<= main_i 0) (<= main_n 20)) (= 23 (select main_a (* 4 main_n))) (or (< 20 main_n) (<= 0 main_i)))} is VALID [2019-01-31 14:32:11,539 INFO L273 TraceCheckUtils]: 1: Hoare triple {5889#(and (or (<= main_i 0) (<= main_n 20)) (= 23 (select main_a (* 4 main_n))) (or (< 20 main_n) (<= 0 main_i)))} assume a[i] != 23;i := i + 4; {5890#(and (or (<= main_n 20) (<= main_i 4)) (or (< 20 main_n) (<= 4 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:11,540 INFO L273 TraceCheckUtils]: 2: Hoare triple {5890#(and (or (<= main_n 20) (<= main_i 4)) (or (< 20 main_n) (<= 4 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {5890#(and (or (<= main_n 20) (<= main_i 4)) (or (< 20 main_n) (<= 4 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:11,541 INFO L273 TraceCheckUtils]: 3: Hoare triple {5890#(and (or (<= main_n 20) (<= main_i 4)) (or (< 20 main_n) (<= 4 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {5891#(and (or (<= main_i 8) (<= main_n 20)) (= 23 (select main_a (* 4 main_n))) (or (< 20 main_n) (<= 8 main_i)))} is VALID [2019-01-31 14:32:11,542 INFO L273 TraceCheckUtils]: 4: Hoare triple {5891#(and (or (<= main_i 8) (<= main_n 20)) (= 23 (select main_a (* 4 main_n))) (or (< 20 main_n) (<= 8 main_i)))} assume i <= n * 4; {5891#(and (or (<= main_i 8) (<= main_n 20)) (= 23 (select main_a (* 4 main_n))) (or (< 20 main_n) (<= 8 main_i)))} is VALID [2019-01-31 14:32:11,543 INFO L273 TraceCheckUtils]: 5: Hoare triple {5891#(and (or (<= main_i 8) (<= main_n 20)) (= 23 (select main_a (* 4 main_n))) (or (< 20 main_n) (<= 8 main_i)))} assume a[i] != 23;i := i + 4; {5892#(and (or (<= main_n 20) (<= main_i 12)) (or (< 20 main_n) (<= 12 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:11,544 INFO L273 TraceCheckUtils]: 6: Hoare triple {5892#(and (or (<= main_n 20) (<= main_i 12)) (or (< 20 main_n) (<= 12 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {5892#(and (or (<= main_n 20) (<= main_i 12)) (or (< 20 main_n) (<= 12 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:11,545 INFO L273 TraceCheckUtils]: 7: Hoare triple {5892#(and (or (<= main_n 20) (<= main_i 12)) (or (< 20 main_n) (<= 12 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {5893#(and (or (< 20 main_n) (<= 16 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 20) (<= main_i 16)))} is VALID [2019-01-31 14:32:11,546 INFO L273 TraceCheckUtils]: 8: Hoare triple {5893#(and (or (< 20 main_n) (<= 16 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 20) (<= main_i 16)))} assume i <= n * 4; {5893#(and (or (< 20 main_n) (<= 16 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 20) (<= main_i 16)))} is VALID [2019-01-31 14:32:11,547 INFO L273 TraceCheckUtils]: 9: Hoare triple {5893#(and (or (< 20 main_n) (<= 16 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 20) (<= main_i 16)))} assume a[i] != 23;i := i + 4; {5894#(and (or (<= main_i 20) (<= main_n 20)) (or (< 20 main_n) (<= 20 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:11,548 INFO L273 TraceCheckUtils]: 10: Hoare triple {5894#(and (or (<= main_i 20) (<= main_n 20)) (or (< 20 main_n) (<= 20 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {5894#(and (or (<= main_i 20) (<= main_n 20)) (or (< 20 main_n) (<= 20 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:11,549 INFO L273 TraceCheckUtils]: 11: Hoare triple {5894#(and (or (<= main_i 20) (<= main_n 20)) (or (< 20 main_n) (<= 20 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {5895#(and (or (< 20 main_n) (<= 24 main_i)) (or (<= main_i 24) (<= main_n 20)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:11,550 INFO L273 TraceCheckUtils]: 12: Hoare triple {5895#(and (or (< 20 main_n) (<= 24 main_i)) (or (<= main_i 24) (<= main_n 20)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {5895#(and (or (< 20 main_n) (<= 24 main_i)) (or (<= main_i 24) (<= main_n 20)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:11,551 INFO L273 TraceCheckUtils]: 13: Hoare triple {5895#(and (or (< 20 main_n) (<= 24 main_i)) (or (<= main_i 24) (<= main_n 20)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {5896#(and (or (< 20 main_n) (<= 28 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 20) (<= main_i 28)))} is VALID [2019-01-31 14:32:11,551 INFO L273 TraceCheckUtils]: 14: Hoare triple {5896#(and (or (< 20 main_n) (<= 28 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 20) (<= main_i 28)))} assume i <= n * 4; {5896#(and (or (< 20 main_n) (<= 28 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 20) (<= main_i 28)))} is VALID [2019-01-31 14:32:11,553 INFO L273 TraceCheckUtils]: 15: Hoare triple {5896#(and (or (< 20 main_n) (<= 28 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 20) (<= main_i 28)))} assume a[i] != 23;i := i + 4; {5897#(and (or (< 20 main_n) (<= 32 main_i)) (or (<= main_i 32) (<= main_n 20)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:11,553 INFO L273 TraceCheckUtils]: 16: Hoare triple {5897#(and (or (< 20 main_n) (<= 32 main_i)) (or (<= main_i 32) (<= main_n 20)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {5897#(and (or (< 20 main_n) (<= 32 main_i)) (or (<= main_i 32) (<= main_n 20)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:11,554 INFO L273 TraceCheckUtils]: 17: Hoare triple {5897#(and (or (< 20 main_n) (<= 32 main_i)) (or (<= main_i 32) (<= main_n 20)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {5898#(and (or (< 20 main_n) (<= 36 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 36) (<= main_n 20)))} is VALID [2019-01-31 14:32:11,555 INFO L273 TraceCheckUtils]: 18: Hoare triple {5898#(and (or (< 20 main_n) (<= 36 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 36) (<= main_n 20)))} assume i <= n * 4; {5898#(and (or (< 20 main_n) (<= 36 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 36) (<= main_n 20)))} is VALID [2019-01-31 14:32:11,556 INFO L273 TraceCheckUtils]: 19: Hoare triple {5898#(and (or (< 20 main_n) (<= 36 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 36) (<= main_n 20)))} assume a[i] != 23;i := i + 4; {5899#(and (or (<= 40 main_i) (< 20 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 40) (<= main_n 20)))} is VALID [2019-01-31 14:32:11,557 INFO L273 TraceCheckUtils]: 20: Hoare triple {5899#(and (or (<= 40 main_i) (< 20 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 40) (<= main_n 20)))} assume i <= n * 4; {5899#(and (or (<= 40 main_i) (< 20 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 40) (<= main_n 20)))} is VALID [2019-01-31 14:32:11,558 INFO L273 TraceCheckUtils]: 21: Hoare triple {5899#(and (or (<= 40 main_i) (< 20 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 40) (<= main_n 20)))} assume a[i] != 23;i := i + 4; {5900#(and (or (< 20 main_n) (<= 44 main_i)) (or (<= main_n 20) (<= main_i 44)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:11,559 INFO L273 TraceCheckUtils]: 22: Hoare triple {5900#(and (or (< 20 main_n) (<= 44 main_i)) (or (<= main_n 20) (<= main_i 44)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {5900#(and (or (< 20 main_n) (<= 44 main_i)) (or (<= main_n 20) (<= main_i 44)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:11,560 INFO L273 TraceCheckUtils]: 23: Hoare triple {5900#(and (or (< 20 main_n) (<= 44 main_i)) (or (<= main_n 20) (<= main_i 44)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {5901#(and (or (< 20 main_n) (<= 48 main_i)) (or (<= main_n 20) (<= main_i 48)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:11,561 INFO L273 TraceCheckUtils]: 24: Hoare triple {5901#(and (or (< 20 main_n) (<= 48 main_i)) (or (<= main_n 20) (<= main_i 48)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {5901#(and (or (< 20 main_n) (<= 48 main_i)) (or (<= main_n 20) (<= main_i 48)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:11,562 INFO L273 TraceCheckUtils]: 25: Hoare triple {5901#(and (or (< 20 main_n) (<= 48 main_i)) (or (<= main_n 20) (<= main_i 48)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {5902#(and (or (<= main_i 52) (<= main_n 20)) (or (< 20 main_n) (<= 52 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:11,563 INFO L273 TraceCheckUtils]: 26: Hoare triple {5902#(and (or (<= main_i 52) (<= main_n 20)) (or (< 20 main_n) (<= 52 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {5902#(and (or (<= main_i 52) (<= main_n 20)) (or (< 20 main_n) (<= 52 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:11,564 INFO L273 TraceCheckUtils]: 27: Hoare triple {5902#(and (or (<= main_i 52) (<= main_n 20)) (or (< 20 main_n) (<= 52 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {5903#(and (or (<= main_i 56) (<= main_n 20)) (or (< 20 main_n) (<= 56 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:11,564 INFO L273 TraceCheckUtils]: 28: Hoare triple {5903#(and (or (<= main_i 56) (<= main_n 20)) (or (< 20 main_n) (<= 56 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {5903#(and (or (<= main_i 56) (<= main_n 20)) (or (< 20 main_n) (<= 56 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:11,585 INFO L273 TraceCheckUtils]: 29: Hoare triple {5903#(and (or (<= main_i 56) (<= main_n 20)) (or (< 20 main_n) (<= 56 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {5904#(and (or (<= main_i 60) (<= main_n 20)) (= 23 (select main_a (* 4 main_n))) (or (< 20 main_n) (<= 60 main_i)))} is VALID [2019-01-31 14:32:11,586 INFO L273 TraceCheckUtils]: 30: Hoare triple {5904#(and (or (<= main_i 60) (<= main_n 20)) (= 23 (select main_a (* 4 main_n))) (or (< 20 main_n) (<= 60 main_i)))} assume i <= n * 4; {5904#(and (or (<= main_i 60) (<= main_n 20)) (= 23 (select main_a (* 4 main_n))) (or (< 20 main_n) (<= 60 main_i)))} is VALID [2019-01-31 14:32:11,587 INFO L273 TraceCheckUtils]: 31: Hoare triple {5904#(and (or (<= main_i 60) (<= main_n 20)) (= 23 (select main_a (* 4 main_n))) (or (< 20 main_n) (<= 60 main_i)))} assume a[i] != 23;i := i + 4; {5905#(and (or (< 20 main_n) (<= 64 main_i)) (or (<= main_i 64) (<= main_n 20)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:11,587 INFO L273 TraceCheckUtils]: 32: Hoare triple {5905#(and (or (< 20 main_n) (<= 64 main_i)) (or (<= main_i 64) (<= main_n 20)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {5905#(and (or (< 20 main_n) (<= 64 main_i)) (or (<= main_i 64) (<= main_n 20)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:11,588 INFO L273 TraceCheckUtils]: 33: Hoare triple {5905#(and (or (< 20 main_n) (<= 64 main_i)) (or (<= main_i 64) (<= main_n 20)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {5906#(and (or (< 20 main_n) (<= 68 main_i)) (or (<= main_n 20) (<= main_i 68)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:11,589 INFO L273 TraceCheckUtils]: 34: Hoare triple {5906#(and (or (< 20 main_n) (<= 68 main_i)) (or (<= main_n 20) (<= main_i 68)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {5906#(and (or (< 20 main_n) (<= 68 main_i)) (or (<= main_n 20) (<= main_i 68)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:11,590 INFO L273 TraceCheckUtils]: 35: Hoare triple {5906#(and (or (< 20 main_n) (<= 68 main_i)) (or (<= main_n 20) (<= main_i 68)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {5907#(and (or (<= 72 main_i) (< 20 main_n)) (or (<= main_n 20) (<= main_i 72)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:11,590 INFO L273 TraceCheckUtils]: 36: Hoare triple {5907#(and (or (<= 72 main_i) (< 20 main_n)) (or (<= main_n 20) (<= main_i 72)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {5907#(and (or (<= 72 main_i) (< 20 main_n)) (or (<= main_n 20) (<= main_i 72)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:11,592 INFO L273 TraceCheckUtils]: 37: Hoare triple {5907#(and (or (<= 72 main_i) (< 20 main_n)) (or (<= main_n 20) (<= main_i 72)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {5908#(and (or (<= main_i 76) (<= main_n 20)) (= 23 (select main_a (* 4 main_n))) (or (<= 76 main_i) (< 20 main_n)))} is VALID [2019-01-31 14:32:11,592 INFO L273 TraceCheckUtils]: 38: Hoare triple {5908#(and (or (<= main_i 76) (<= main_n 20)) (= 23 (select main_a (* 4 main_n))) (or (<= 76 main_i) (< 20 main_n)))} assume i <= n * 4; {5908#(and (or (<= main_i 76) (<= main_n 20)) (= 23 (select main_a (* 4 main_n))) (or (<= 76 main_i) (< 20 main_n)))} is VALID [2019-01-31 14:32:11,594 INFO L273 TraceCheckUtils]: 39: Hoare triple {5908#(and (or (<= main_i 76) (<= main_n 20)) (= 23 (select main_a (* 4 main_n))) (or (<= 76 main_i) (< 20 main_n)))} assume a[i] != 23;i := i + 4; {5909#(and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (or (= (* 4 main_n) main_i) (and (or (<= main_n 20) (<= main_i 80)) (or (< 20 main_n) (<= (* 4 main_n) main_i)))))} is VALID [2019-01-31 14:32:11,595 INFO L273 TraceCheckUtils]: 40: Hoare triple {5909#(and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (or (= (* 4 main_n) main_i) (and (or (<= main_n 20) (<= main_i 80)) (or (< 20 main_n) (<= (* 4 main_n) main_i)))))} assume i <= n * 4; {5910#(and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (or (= (* 4 main_n) main_i) (and (< 20 main_n) (<= main_i 80))))} is VALID [2019-01-31 14:32:11,596 INFO L273 TraceCheckUtils]: 41: Hoare triple {5910#(and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (or (= (* 4 main_n) main_i) (and (< 20 main_n) (<= main_i 80))))} assume a[i] != 23;i := i + 4; {5911#(and (<= main_i 84) (<= 21 main_n))} is VALID [2019-01-31 14:32:11,597 INFO L273 TraceCheckUtils]: 42: Hoare triple {5911#(and (<= main_i 84) (<= 21 main_n))} assume !(i <= n * 4); {5888#false} is VALID [2019-01-31 14:32:11,606 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 14:32:11,606 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-31 14:32:11,607 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-01-31 14:32:11,607 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-01-31 14:32:11,607 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-01-31 14:32:11,607 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-31 14:32:11,607 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 14:32:11,615 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2019-01-31 14:32:11,615 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST2 (IT: FPandBP) [2019-01-31 14:32:11,639 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 21 check-sat command(s) [2019-01-31 14:32:11,639 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-01-31 14:32:11,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-31 14:32:11,647 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-31 14:32:11,663 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 14:32:11,664 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-01-31 14:32:11,667 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-31 14:32:11,668 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2019-01-31 14:32:11,670 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-01-31 14:32:11,670 WARN L398 uantifierElimination]: Input elimination task: ∃ [v_main_a_24]. (and (= main_a (store v_main_a_24 (* 4 main_n) 23)) (= main_i 0)) [2019-01-31 14:32:11,671 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2019-01-31 14:32:12,979 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2019-01-31 14:32:12,981 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-01-31 14:32:12,985 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-31 14:32:12,986 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2019-01-31 14:32:12,988 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-01-31 14:32:12,988 WARN L398 uantifierElimination]: Input elimination task: ∃ [main_a]. (let ((.cse0 (* 4 main_n))) (and (<= main_i 84) (not (= 23 (select main_a 80))) (= 23 (select main_a .cse0)) (<= 80 .cse0))) [2019-01-31 14:32:12,989 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (let ((.cse0 (* 4 main_n))) (and (<= main_i 84) (not (= 80 .cse0)) (<= 80 .cse0))) [2019-01-31 14:32:13,019 INFO L273 TraceCheckUtils]: 0: Hoare triple {5887#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {5915#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:13,020 INFO L273 TraceCheckUtils]: 1: Hoare triple {5915#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {5919#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2019-01-31 14:32:13,021 INFO L273 TraceCheckUtils]: 2: Hoare triple {5919#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume i <= n * 4; {5919#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2019-01-31 14:32:13,021 INFO L273 TraceCheckUtils]: 3: Hoare triple {5919#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume a[i] != 23;i := i + 4; {5926#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:13,021 INFO L273 TraceCheckUtils]: 4: Hoare triple {5926#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {5926#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:13,022 INFO L273 TraceCheckUtils]: 5: Hoare triple {5926#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {5933#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2019-01-31 14:32:13,023 INFO L273 TraceCheckUtils]: 6: Hoare triple {5933#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume i <= n * 4; {5933#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2019-01-31 14:32:13,023 INFO L273 TraceCheckUtils]: 7: Hoare triple {5933#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume a[i] != 23;i := i + 4; {5940#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:13,024 INFO L273 TraceCheckUtils]: 8: Hoare triple {5940#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {5940#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:13,025 INFO L273 TraceCheckUtils]: 9: Hoare triple {5940#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {5947#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:13,025 INFO L273 TraceCheckUtils]: 10: Hoare triple {5947#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {5947#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:13,026 INFO L273 TraceCheckUtils]: 11: Hoare triple {5947#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {5954#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:13,027 INFO L273 TraceCheckUtils]: 12: Hoare triple {5954#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {5954#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:13,028 INFO L273 TraceCheckUtils]: 13: Hoare triple {5954#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {5961#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:13,028 INFO L273 TraceCheckUtils]: 14: Hoare triple {5961#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {5961#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:13,029 INFO L273 TraceCheckUtils]: 15: Hoare triple {5961#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {5968#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:13,030 INFO L273 TraceCheckUtils]: 16: Hoare triple {5968#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {5968#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:13,030 INFO L273 TraceCheckUtils]: 17: Hoare triple {5968#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {5975#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:13,031 INFO L273 TraceCheckUtils]: 18: Hoare triple {5975#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {5975#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:13,032 INFO L273 TraceCheckUtils]: 19: Hoare triple {5975#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {5982#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:13,032 INFO L273 TraceCheckUtils]: 20: Hoare triple {5982#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {5982#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:13,033 INFO L273 TraceCheckUtils]: 21: Hoare triple {5982#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {5989#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:13,034 INFO L273 TraceCheckUtils]: 22: Hoare triple {5989#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {5989#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:13,034 INFO L273 TraceCheckUtils]: 23: Hoare triple {5989#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {5996#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:13,035 INFO L273 TraceCheckUtils]: 24: Hoare triple {5996#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {5996#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:13,036 INFO L273 TraceCheckUtils]: 25: Hoare triple {5996#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {6003#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:13,036 INFO L273 TraceCheckUtils]: 26: Hoare triple {6003#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {6003#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:13,037 INFO L273 TraceCheckUtils]: 27: Hoare triple {6003#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {6010#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:13,038 INFO L273 TraceCheckUtils]: 28: Hoare triple {6010#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {6010#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:13,039 INFO L273 TraceCheckUtils]: 29: Hoare triple {6010#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {6017#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:13,039 INFO L273 TraceCheckUtils]: 30: Hoare triple {6017#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {6017#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:13,040 INFO L273 TraceCheckUtils]: 31: Hoare triple {6017#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {6024#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:13,041 INFO L273 TraceCheckUtils]: 32: Hoare triple {6024#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {6024#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:13,041 INFO L273 TraceCheckUtils]: 33: Hoare triple {6024#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {6031#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:13,042 INFO L273 TraceCheckUtils]: 34: Hoare triple {6031#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {6031#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:13,043 INFO L273 TraceCheckUtils]: 35: Hoare triple {6031#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {6038#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:13,043 INFO L273 TraceCheckUtils]: 36: Hoare triple {6038#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {6038#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:13,044 INFO L273 TraceCheckUtils]: 37: Hoare triple {6038#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {6045#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:13,045 INFO L273 TraceCheckUtils]: 38: Hoare triple {6045#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {6045#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:13,045 INFO L273 TraceCheckUtils]: 39: Hoare triple {6045#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {6052#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} is VALID [2019-01-31 14:32:13,046 INFO L273 TraceCheckUtils]: 40: Hoare triple {6052#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} assume i <= n * 4; {6056#(and (<= main_i (* 4 main_n)) (= 23 (select main_a (* 4 main_n))) (= main_i 80))} is VALID [2019-01-31 14:32:13,047 INFO L273 TraceCheckUtils]: 41: Hoare triple {6056#(and (<= main_i (* 4 main_n)) (= 23 (select main_a (* 4 main_n))) (= main_i 80))} assume a[i] != 23;i := i + 4; {5911#(and (<= main_i 84) (<= 21 main_n))} is VALID [2019-01-31 14:32:13,048 INFO L273 TraceCheckUtils]: 42: Hoare triple {5911#(and (<= main_i 84) (<= 21 main_n))} assume !(i <= n * 4); {5888#false} is VALID [2019-01-31 14:32:13,054 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 14:32:13,054 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2019-01-31 14:32:14,582 INFO L273 TraceCheckUtils]: 42: Hoare triple {6063#(<= main_i (* 4 main_n))} assume !(i <= n * 4); {5888#false} is VALID [2019-01-31 14:32:14,583 INFO L273 TraceCheckUtils]: 41: Hoare triple {6067#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} assume a[i] != 23;i := i + 4; {6063#(<= main_i (* 4 main_n))} is VALID [2019-01-31 14:32:14,584 INFO L273 TraceCheckUtils]: 40: Hoare triple {6071#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} assume i <= n * 4; {6067#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} is VALID [2019-01-31 14:32:14,585 INFO L273 TraceCheckUtils]: 39: Hoare triple {6075#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume a[i] != 23;i := i + 4; {6071#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} is VALID [2019-01-31 14:32:14,586 INFO L273 TraceCheckUtils]: 38: Hoare triple {6075#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume i <= n * 4; {6075#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2019-01-31 14:32:14,587 INFO L273 TraceCheckUtils]: 37: Hoare triple {6082#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume a[i] != 23;i := i + 4; {6075#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2019-01-31 14:32:14,587 INFO L273 TraceCheckUtils]: 36: Hoare triple {6082#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume i <= n * 4; {6082#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2019-01-31 14:32:14,588 INFO L273 TraceCheckUtils]: 35: Hoare triple {6089#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume a[i] != 23;i := i + 4; {6082#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2019-01-31 14:32:14,589 INFO L273 TraceCheckUtils]: 34: Hoare triple {6089#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume i <= n * 4; {6089#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2019-01-31 14:32:14,590 INFO L273 TraceCheckUtils]: 33: Hoare triple {6096#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume a[i] != 23;i := i + 4; {6089#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2019-01-31 14:32:14,591 INFO L273 TraceCheckUtils]: 32: Hoare triple {6096#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume i <= n * 4; {6096#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2019-01-31 14:32:14,592 INFO L273 TraceCheckUtils]: 31: Hoare triple {6103#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {6096#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2019-01-31 14:32:14,592 INFO L273 TraceCheckUtils]: 30: Hoare triple {6103#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume i <= n * 4; {6103#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2019-01-31 14:32:14,594 INFO L273 TraceCheckUtils]: 29: Hoare triple {6110#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume a[i] != 23;i := i + 4; {6103#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2019-01-31 14:32:14,594 INFO L273 TraceCheckUtils]: 28: Hoare triple {6110#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume i <= n * 4; {6110#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2019-01-31 14:32:14,595 INFO L273 TraceCheckUtils]: 27: Hoare triple {6117#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {6110#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2019-01-31 14:32:14,596 INFO L273 TraceCheckUtils]: 26: Hoare triple {6117#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume i <= n * 4; {6117#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2019-01-31 14:32:14,597 INFO L273 TraceCheckUtils]: 25: Hoare triple {6124#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {6117#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2019-01-31 14:32:14,598 INFO L273 TraceCheckUtils]: 24: Hoare triple {6124#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume i <= n * 4; {6124#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2019-01-31 14:32:14,599 INFO L273 TraceCheckUtils]: 23: Hoare triple {6131#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {6124#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2019-01-31 14:32:14,599 INFO L273 TraceCheckUtils]: 22: Hoare triple {6131#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume i <= n * 4; {6131#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2019-01-31 14:32:14,600 INFO L273 TraceCheckUtils]: 21: Hoare triple {6138#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} assume a[i] != 23;i := i + 4; {6131#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2019-01-31 14:32:14,601 INFO L273 TraceCheckUtils]: 20: Hoare triple {6138#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} assume i <= n * 4; {6138#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} is VALID [2019-01-31 14:32:14,602 INFO L273 TraceCheckUtils]: 19: Hoare triple {6145#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {6138#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} is VALID [2019-01-31 14:32:14,602 INFO L273 TraceCheckUtils]: 18: Hoare triple {6145#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} assume i <= n * 4; {6145#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} is VALID [2019-01-31 14:32:14,604 INFO L273 TraceCheckUtils]: 17: Hoare triple {6152#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {6145#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} is VALID [2019-01-31 14:32:14,604 INFO L273 TraceCheckUtils]: 16: Hoare triple {6152#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} assume i <= n * 4; {6152#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} is VALID [2019-01-31 14:32:14,605 INFO L273 TraceCheckUtils]: 15: Hoare triple {6159#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} assume a[i] != 23;i := i + 4; {6152#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} is VALID [2019-01-31 14:32:14,606 INFO L273 TraceCheckUtils]: 14: Hoare triple {6159#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} assume i <= n * 4; {6159#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} is VALID [2019-01-31 14:32:14,607 INFO L273 TraceCheckUtils]: 13: Hoare triple {6166#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {6159#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} is VALID [2019-01-31 14:32:14,607 INFO L273 TraceCheckUtils]: 12: Hoare triple {6166#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} assume i <= n * 4; {6166#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} is VALID [2019-01-31 14:32:14,608 INFO L273 TraceCheckUtils]: 11: Hoare triple {6173#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} assume a[i] != 23;i := i + 4; {6166#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} is VALID [2019-01-31 14:32:14,609 INFO L273 TraceCheckUtils]: 10: Hoare triple {6173#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} assume i <= n * 4; {6173#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} is VALID [2019-01-31 14:32:14,610 INFO L273 TraceCheckUtils]: 9: Hoare triple {6180#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} assume a[i] != 23;i := i + 4; {6173#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} is VALID [2019-01-31 14:32:14,611 INFO L273 TraceCheckUtils]: 8: Hoare triple {6180#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} assume i <= n * 4; {6180#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} is VALID [2019-01-31 14:32:14,612 INFO L273 TraceCheckUtils]: 7: Hoare triple {6187#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} assume a[i] != 23;i := i + 4; {6180#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} is VALID [2019-01-31 14:32:14,612 INFO L273 TraceCheckUtils]: 6: Hoare triple {6187#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} assume i <= n * 4; {6187#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} is VALID [2019-01-31 14:32:14,613 INFO L273 TraceCheckUtils]: 5: Hoare triple {6194#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} assume a[i] != 23;i := i + 4; {6187#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} is VALID [2019-01-31 14:32:14,614 INFO L273 TraceCheckUtils]: 4: Hoare triple {6194#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} assume i <= n * 4; {6194#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} is VALID [2019-01-31 14:32:14,615 INFO L273 TraceCheckUtils]: 3: Hoare triple {6201#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} assume a[i] != 23;i := i + 4; {6194#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} is VALID [2019-01-31 14:32:14,615 INFO L273 TraceCheckUtils]: 2: Hoare triple {6201#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} assume i <= n * 4; {6201#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} is VALID [2019-01-31 14:32:14,616 INFO L273 TraceCheckUtils]: 1: Hoare triple {6208#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} assume a[i] != 23;i := i + 4; {6201#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} is VALID [2019-01-31 14:32:14,617 INFO L273 TraceCheckUtils]: 0: Hoare triple {5887#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {6208#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} is VALID [2019-01-31 14:32:14,626 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 14:32:14,645 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-01-31 14:32:14,645 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 23, 23] total 68 [2019-01-31 14:32:14,645 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-01-31 14:32:14,645 INFO L78 Accepts]: Start accepts. Automaton has 47 states. Word has length 43 [2019-01-31 14:32:14,646 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-01-31 14:32:14,646 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 47 states. [2019-01-31 14:32:14,743 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 85 edges. 85 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-01-31 14:32:14,743 INFO L459 AbstractCegarLoop]: Interpolant automaton has 47 states [2019-01-31 14:32:14,743 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants. [2019-01-31 14:32:14,744 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=652, Invalid=4178, Unknown=0, NotChecked=0, Total=4830 [2019-01-31 14:32:14,744 INFO L87 Difference]: Start difference. First operand 44 states and 44 transitions. Second operand 47 states. [2019-01-31 14:32:17,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 14:32:17,280 INFO L93 Difference]: Finished difference Result 48 states and 48 transitions. [2019-01-31 14:32:17,280 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2019-01-31 14:32:17,280 INFO L78 Accepts]: Start accepts. Automaton has 47 states. Word has length 43 [2019-01-31 14:32:17,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-31 14:32:17,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2019-01-31 14:32:17,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 48 transitions. [2019-01-31 14:32:17,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2019-01-31 14:32:17,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 48 transitions. [2019-01-31 14:32:17,282 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 25 states and 48 transitions. [2019-01-31 14:32:17,331 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 14:32:17,332 INFO L225 Difference]: With dead ends: 48 [2019-01-31 14:32:17,332 INFO L226 Difference]: Without dead ends: 47 [2019-01-31 14:32:17,333 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 38 SyntacticMatches, 1 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1100 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=652, Invalid=4178, Unknown=0, NotChecked=0, Total=4830 [2019-01-31 14:32:17,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2019-01-31 14:32:17,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 46. [2019-01-31 14:32:17,376 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-01-31 14:32:17,376 INFO L82 GeneralOperation]: Start isEquivalent. First operand 47 states. Second operand 46 states. [2019-01-31 14:32:17,377 INFO L74 IsIncluded]: Start isIncluded. First operand 47 states. Second operand 46 states. [2019-01-31 14:32:17,377 INFO L87 Difference]: Start difference. First operand 47 states. Second operand 46 states. [2019-01-31 14:32:17,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 14:32:17,378 INFO L93 Difference]: Finished difference Result 47 states and 47 transitions. [2019-01-31 14:32:17,378 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 47 transitions. [2019-01-31 14:32:17,378 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-31 14:32:17,378 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-01-31 14:32:17,379 INFO L74 IsIncluded]: Start isIncluded. First operand 46 states. Second operand 47 states. [2019-01-31 14:32:17,379 INFO L87 Difference]: Start difference. First operand 46 states. Second operand 47 states. [2019-01-31 14:32:17,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 14:32:17,379 INFO L93 Difference]: Finished difference Result 47 states and 47 transitions. [2019-01-31 14:32:17,379 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 47 transitions. [2019-01-31 14:32:17,380 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-31 14:32:17,380 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-01-31 14:32:17,380 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-01-31 14:32:17,380 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-01-31 14:32:17,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2019-01-31 14:32:17,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 46 transitions. [2019-01-31 14:32:17,381 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 46 transitions. Word has length 43 [2019-01-31 14:32:17,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-31 14:32:17,381 INFO L480 AbstractCegarLoop]: Abstraction has 46 states and 46 transitions. [2019-01-31 14:32:17,381 INFO L481 AbstractCegarLoop]: Interpolant automaton has 47 states. [2019-01-31 14:32:17,381 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 46 transitions. [2019-01-31 14:32:17,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2019-01-31 14:32:17,382 INFO L394 BasicCegarLoop]: Found error trace [2019-01-31 14:32:17,382 INFO L402 BasicCegarLoop]: trace histogram [22, 21, 1, 1] [2019-01-31 14:32:17,382 INFO L423 AbstractCegarLoop]: === Iteration 22 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-01-31 14:32:17,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-31 14:32:17,382 INFO L82 PathProgramCache]: Analyzing trace with hash -1771569846, now seen corresponding path program 21 times [2019-01-31 14:32:17,382 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-01-31 14:32:17,383 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-31 14:32:17,383 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-01-31 14:32:17,383 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-31 14:32:17,383 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-01-31 14:32:17,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-31 14:32:18,757 INFO L273 TraceCheckUtils]: 0: Hoare triple {6444#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {6446#(and (or (<= main_n 21) (<= main_i 0)) (or (<= 0 main_i) (< 21 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:18,758 INFO L273 TraceCheckUtils]: 1: Hoare triple {6446#(and (or (<= main_n 21) (<= main_i 0)) (or (<= 0 main_i) (< 21 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {6447#(and (or (< 21 main_n) (<= 4 main_i)) (or (<= main_n 21) (<= main_i 4)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:18,759 INFO L273 TraceCheckUtils]: 2: Hoare triple {6447#(and (or (< 21 main_n) (<= 4 main_i)) (or (<= main_n 21) (<= main_i 4)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {6447#(and (or (< 21 main_n) (<= 4 main_i)) (or (<= main_n 21) (<= main_i 4)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:18,760 INFO L273 TraceCheckUtils]: 3: Hoare triple {6447#(and (or (< 21 main_n) (<= 4 main_i)) (or (<= main_n 21) (<= main_i 4)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {6448#(and (or (< 21 main_n) (<= 8 main_i)) (or (<= main_i 8) (<= main_n 21)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:18,761 INFO L273 TraceCheckUtils]: 4: Hoare triple {6448#(and (or (< 21 main_n) (<= 8 main_i)) (or (<= main_i 8) (<= main_n 21)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {6448#(and (or (< 21 main_n) (<= 8 main_i)) (or (<= main_i 8) (<= main_n 21)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:18,762 INFO L273 TraceCheckUtils]: 5: Hoare triple {6448#(and (or (< 21 main_n) (<= 8 main_i)) (or (<= main_i 8) (<= main_n 21)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {6449#(and (or (< 21 main_n) (<= 12 main_i)) (or (<= main_n 21) (<= main_i 12)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:18,762 INFO L273 TraceCheckUtils]: 6: Hoare triple {6449#(and (or (< 21 main_n) (<= 12 main_i)) (or (<= main_n 21) (<= main_i 12)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {6449#(and (or (< 21 main_n) (<= 12 main_i)) (or (<= main_n 21) (<= main_i 12)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:18,764 INFO L273 TraceCheckUtils]: 7: Hoare triple {6449#(and (or (< 21 main_n) (<= 12 main_i)) (or (<= main_n 21) (<= main_i 12)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {6450#(and (or (< 21 main_n) (<= 16 main_i)) (or (<= main_n 21) (<= main_i 16)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:18,764 INFO L273 TraceCheckUtils]: 8: Hoare triple {6450#(and (or (< 21 main_n) (<= 16 main_i)) (or (<= main_n 21) (<= main_i 16)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {6450#(and (or (< 21 main_n) (<= 16 main_i)) (or (<= main_n 21) (<= main_i 16)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:18,765 INFO L273 TraceCheckUtils]: 9: Hoare triple {6450#(and (or (< 21 main_n) (<= 16 main_i)) (or (<= main_n 21) (<= main_i 16)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {6451#(and (or (<= main_n 21) (<= main_i 20)) (= 23 (select main_a (* 4 main_n))) (or (< 21 main_n) (<= 20 main_i)))} is VALID [2019-01-31 14:32:18,766 INFO L273 TraceCheckUtils]: 10: Hoare triple {6451#(and (or (<= main_n 21) (<= main_i 20)) (= 23 (select main_a (* 4 main_n))) (or (< 21 main_n) (<= 20 main_i)))} assume i <= n * 4; {6451#(and (or (<= main_n 21) (<= main_i 20)) (= 23 (select main_a (* 4 main_n))) (or (< 21 main_n) (<= 20 main_i)))} is VALID [2019-01-31 14:32:18,767 INFO L273 TraceCheckUtils]: 11: Hoare triple {6451#(and (or (<= main_n 21) (<= main_i 20)) (= 23 (select main_a (* 4 main_n))) (or (< 21 main_n) (<= 20 main_i)))} assume a[i] != 23;i := i + 4; {6452#(and (or (< 21 main_n) (<= 24 main_i)) (or (<= main_n 21) (<= main_i 24)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:18,768 INFO L273 TraceCheckUtils]: 12: Hoare triple {6452#(and (or (< 21 main_n) (<= 24 main_i)) (or (<= main_n 21) (<= main_i 24)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {6452#(and (or (< 21 main_n) (<= 24 main_i)) (or (<= main_n 21) (<= main_i 24)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:18,769 INFO L273 TraceCheckUtils]: 13: Hoare triple {6452#(and (or (< 21 main_n) (<= 24 main_i)) (or (<= main_n 21) (<= main_i 24)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {6453#(and (or (<= 28 main_i) (< 21 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 21) (<= main_i 28)))} is VALID [2019-01-31 14:32:18,770 INFO L273 TraceCheckUtils]: 14: Hoare triple {6453#(and (or (<= 28 main_i) (< 21 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 21) (<= main_i 28)))} assume i <= n * 4; {6453#(and (or (<= 28 main_i) (< 21 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 21) (<= main_i 28)))} is VALID [2019-01-31 14:32:18,771 INFO L273 TraceCheckUtils]: 15: Hoare triple {6453#(and (or (<= 28 main_i) (< 21 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 21) (<= main_i 28)))} assume a[i] != 23;i := i + 4; {6454#(and (= 23 (select main_a (* 4 main_n))) (or (<= 32 main_i) (< 21 main_n)) (or (<= main_i 32) (<= main_n 21)))} is VALID [2019-01-31 14:32:18,772 INFO L273 TraceCheckUtils]: 16: Hoare triple {6454#(and (= 23 (select main_a (* 4 main_n))) (or (<= 32 main_i) (< 21 main_n)) (or (<= main_i 32) (<= main_n 21)))} assume i <= n * 4; {6454#(and (= 23 (select main_a (* 4 main_n))) (or (<= 32 main_i) (< 21 main_n)) (or (<= main_i 32) (<= main_n 21)))} is VALID [2019-01-31 14:32:18,773 INFO L273 TraceCheckUtils]: 17: Hoare triple {6454#(and (= 23 (select main_a (* 4 main_n))) (or (<= 32 main_i) (< 21 main_n)) (or (<= main_i 32) (<= main_n 21)))} assume a[i] != 23;i := i + 4; {6455#(and (or (<= main_i 36) (<= main_n 21)) (or (< 21 main_n) (<= 36 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:18,773 INFO L273 TraceCheckUtils]: 18: Hoare triple {6455#(and (or (<= main_i 36) (<= main_n 21)) (or (< 21 main_n) (<= 36 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {6455#(and (or (<= main_i 36) (<= main_n 21)) (or (< 21 main_n) (<= 36 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:18,774 INFO L273 TraceCheckUtils]: 19: Hoare triple {6455#(and (or (<= main_i 36) (<= main_n 21)) (or (< 21 main_n) (<= 36 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {6456#(and (or (<= main_i 40) (<= main_n 21)) (or (<= 40 main_i) (< 21 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:18,775 INFO L273 TraceCheckUtils]: 20: Hoare triple {6456#(and (or (<= main_i 40) (<= main_n 21)) (or (<= 40 main_i) (< 21 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {6456#(and (or (<= main_i 40) (<= main_n 21)) (or (<= 40 main_i) (< 21 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:18,776 INFO L273 TraceCheckUtils]: 21: Hoare triple {6456#(and (or (<= main_i 40) (<= main_n 21)) (or (<= 40 main_i) (< 21 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {6457#(and (or (<= main_n 21) (<= main_i 44)) (or (<= 44 main_i) (< 21 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:18,777 INFO L273 TraceCheckUtils]: 22: Hoare triple {6457#(and (or (<= main_n 21) (<= main_i 44)) (or (<= 44 main_i) (< 21 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {6457#(and (or (<= main_n 21) (<= main_i 44)) (or (<= 44 main_i) (< 21 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:18,778 INFO L273 TraceCheckUtils]: 23: Hoare triple {6457#(and (or (<= main_n 21) (<= main_i 44)) (or (<= 44 main_i) (< 21 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {6458#(and (or (<= main_n 21) (<= main_i 48)) (or (<= 48 main_i) (< 21 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:18,779 INFO L273 TraceCheckUtils]: 24: Hoare triple {6458#(and (or (<= main_n 21) (<= main_i 48)) (or (<= 48 main_i) (< 21 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {6458#(and (or (<= main_n 21) (<= main_i 48)) (or (<= 48 main_i) (< 21 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:18,780 INFO L273 TraceCheckUtils]: 25: Hoare triple {6458#(and (or (<= main_n 21) (<= main_i 48)) (or (<= 48 main_i) (< 21 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {6459#(and (or (< 21 main_n) (<= 52 main_i)) (or (<= main_i 52) (<= main_n 21)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:18,781 INFO L273 TraceCheckUtils]: 26: Hoare triple {6459#(and (or (< 21 main_n) (<= 52 main_i)) (or (<= main_i 52) (<= main_n 21)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {6459#(and (or (< 21 main_n) (<= 52 main_i)) (or (<= main_i 52) (<= main_n 21)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:18,782 INFO L273 TraceCheckUtils]: 27: Hoare triple {6459#(and (or (< 21 main_n) (<= 52 main_i)) (or (<= main_i 52) (<= main_n 21)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {6460#(and (or (<= main_n 21) (<= main_i 56)) (= 23 (select main_a (* 4 main_n))) (or (< 21 main_n) (<= 56 main_i)))} is VALID [2019-01-31 14:32:18,782 INFO L273 TraceCheckUtils]: 28: Hoare triple {6460#(and (or (<= main_n 21) (<= main_i 56)) (= 23 (select main_a (* 4 main_n))) (or (< 21 main_n) (<= 56 main_i)))} assume i <= n * 4; {6460#(and (or (<= main_n 21) (<= main_i 56)) (= 23 (select main_a (* 4 main_n))) (or (< 21 main_n) (<= 56 main_i)))} is VALID [2019-01-31 14:32:18,783 INFO L273 TraceCheckUtils]: 29: Hoare triple {6460#(and (or (<= main_n 21) (<= main_i 56)) (= 23 (select main_a (* 4 main_n))) (or (< 21 main_n) (<= 56 main_i)))} assume a[i] != 23;i := i + 4; {6461#(and (or (< 21 main_n) (<= 60 main_i)) (or (<= main_n 21) (<= main_i 60)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:18,784 INFO L273 TraceCheckUtils]: 30: Hoare triple {6461#(and (or (< 21 main_n) (<= 60 main_i)) (or (<= main_n 21) (<= main_i 60)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {6461#(and (or (< 21 main_n) (<= 60 main_i)) (or (<= main_n 21) (<= main_i 60)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:18,785 INFO L273 TraceCheckUtils]: 31: Hoare triple {6461#(and (or (< 21 main_n) (<= 60 main_i)) (or (<= main_n 21) (<= main_i 60)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {6462#(and (or (<= main_i 64) (<= main_n 21)) (or (< 21 main_n) (<= 64 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:18,786 INFO L273 TraceCheckUtils]: 32: Hoare triple {6462#(and (or (<= main_i 64) (<= main_n 21)) (or (< 21 main_n) (<= 64 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {6462#(and (or (<= main_i 64) (<= main_n 21)) (or (< 21 main_n) (<= 64 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:18,787 INFO L273 TraceCheckUtils]: 33: Hoare triple {6462#(and (or (<= main_i 64) (<= main_n 21)) (or (< 21 main_n) (<= 64 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {6463#(and (or (< 21 main_n) (<= 68 main_i)) (or (<= main_n 21) (<= main_i 68)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:18,788 INFO L273 TraceCheckUtils]: 34: Hoare triple {6463#(and (or (< 21 main_n) (<= 68 main_i)) (or (<= main_n 21) (<= main_i 68)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {6463#(and (or (< 21 main_n) (<= 68 main_i)) (or (<= main_n 21) (<= main_i 68)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:18,789 INFO L273 TraceCheckUtils]: 35: Hoare triple {6463#(and (or (< 21 main_n) (<= 68 main_i)) (or (<= main_n 21) (<= main_i 68)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {6464#(and (or (<= main_n 21) (<= main_i 72)) (or (<= 72 main_i) (< 21 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:18,790 INFO L273 TraceCheckUtils]: 36: Hoare triple {6464#(and (or (<= main_n 21) (<= main_i 72)) (or (<= 72 main_i) (< 21 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {6464#(and (or (<= main_n 21) (<= main_i 72)) (or (<= 72 main_i) (< 21 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:18,791 INFO L273 TraceCheckUtils]: 37: Hoare triple {6464#(and (or (<= main_n 21) (<= main_i 72)) (or (<= 72 main_i) (< 21 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {6465#(and (or (<= main_i 76) (<= main_n 21)) (or (<= 76 main_i) (< 21 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:18,791 INFO L273 TraceCheckUtils]: 38: Hoare triple {6465#(and (or (<= main_i 76) (<= main_n 21)) (or (<= 76 main_i) (< 21 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {6465#(and (or (<= main_i 76) (<= main_n 21)) (or (<= 76 main_i) (< 21 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:18,792 INFO L273 TraceCheckUtils]: 39: Hoare triple {6465#(and (or (<= main_i 76) (<= main_n 21)) (or (<= 76 main_i) (< 21 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {6466#(and (or (<= main_n 21) (<= main_i 80)) (= 23 (select main_a (* 4 main_n))) (or (< 21 main_n) (<= 80 main_i)))} is VALID [2019-01-31 14:32:18,793 INFO L273 TraceCheckUtils]: 40: Hoare triple {6466#(and (or (<= main_n 21) (<= main_i 80)) (= 23 (select main_a (* 4 main_n))) (or (< 21 main_n) (<= 80 main_i)))} assume i <= n * 4; {6466#(and (or (<= main_n 21) (<= main_i 80)) (= 23 (select main_a (* 4 main_n))) (or (< 21 main_n) (<= 80 main_i)))} is VALID [2019-01-31 14:32:18,795 INFO L273 TraceCheckUtils]: 41: Hoare triple {6466#(and (or (<= main_n 21) (<= main_i 80)) (= 23 (select main_a (* 4 main_n))) (or (< 21 main_n) (<= 80 main_i)))} assume a[i] != 23;i := i + 4; {6467#(and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (or (= (* 4 main_n) main_i) (and (or (<= main_i 84) (<= main_n 21)) (or (< 21 main_n) (<= (* 4 main_n) main_i)))))} is VALID [2019-01-31 14:32:18,796 INFO L273 TraceCheckUtils]: 42: Hoare triple {6467#(and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (or (= (* 4 main_n) main_i) (and (or (<= main_i 84) (<= main_n 21)) (or (< 21 main_n) (<= (* 4 main_n) main_i)))))} assume i <= n * 4; {6468#(and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (or (= (* 4 main_n) main_i) (and (<= main_i 84) (< 21 main_n))))} is VALID [2019-01-31 14:32:18,797 INFO L273 TraceCheckUtils]: 43: Hoare triple {6468#(and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (or (= (* 4 main_n) main_i) (and (<= main_i 84) (< 21 main_n))))} assume a[i] != 23;i := i + 4; {6469#(and (<= main_i 88) (<= 22 main_n))} is VALID [2019-01-31 14:32:18,797 INFO L273 TraceCheckUtils]: 44: Hoare triple {6469#(and (<= main_i 88) (<= 22 main_n))} assume !(i <= n * 4); {6445#false} is VALID [2019-01-31 14:32:18,808 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 14:32:18,809 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-31 14:32:18,809 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-01-31 14:32:18,809 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-01-31 14:32:18,809 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-01-31 14:32:18,809 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-31 14:32:18,809 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 14:32:18,818 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2019-01-31 14:32:18,818 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder TERMS_WITH_SMALL_CONSTANTS_FIRST (IT: FPandBP) [2019-01-31 14:32:18,831 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-01-31 14:32:18,831 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-01-31 14:32:18,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-31 14:32:18,842 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-31 14:32:18,856 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 14:32:18,864 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-01-31 14:32:18,867 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-31 14:32:18,868 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2019-01-31 14:32:18,870 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-01-31 14:32:18,870 WARN L398 uantifierElimination]: Input elimination task: ∃ [v_main_a_25]. (and (= main_i 0) (= main_a (store v_main_a_25 (* 4 main_n) 23))) [2019-01-31 14:32:18,871 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2019-01-31 14:32:19,972 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2019-01-31 14:32:19,986 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-01-31 14:32:19,991 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-31 14:32:19,991 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2019-01-31 14:32:19,994 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-01-31 14:32:19,994 WARN L398 uantifierElimination]: Input elimination task: ∃ [main_a]. (let ((.cse0 (* 4 main_n))) (and (<= main_i 88) (not (= 23 (select main_a 84))) (= 23 (select main_a .cse0)) (<= 84 .cse0))) [2019-01-31 14:32:19,994 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (let ((.cse0 (* 4 main_n))) (and (<= main_i 88) (not (= 84 .cse0)) (<= 84 .cse0))) [2019-01-31 14:32:20,026 INFO L273 TraceCheckUtils]: 0: Hoare triple {6444#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {6473#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:20,026 INFO L273 TraceCheckUtils]: 1: Hoare triple {6473#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {6477#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2019-01-31 14:32:20,027 INFO L273 TraceCheckUtils]: 2: Hoare triple {6477#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume i <= n * 4; {6477#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2019-01-31 14:32:20,028 INFO L273 TraceCheckUtils]: 3: Hoare triple {6477#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume a[i] != 23;i := i + 4; {6484#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:20,029 INFO L273 TraceCheckUtils]: 4: Hoare triple {6484#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {6484#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:20,029 INFO L273 TraceCheckUtils]: 5: Hoare triple {6484#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {6491#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2019-01-31 14:32:20,030 INFO L273 TraceCheckUtils]: 6: Hoare triple {6491#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume i <= n * 4; {6491#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2019-01-31 14:32:20,031 INFO L273 TraceCheckUtils]: 7: Hoare triple {6491#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume a[i] != 23;i := i + 4; {6498#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:20,031 INFO L273 TraceCheckUtils]: 8: Hoare triple {6498#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {6498#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:20,032 INFO L273 TraceCheckUtils]: 9: Hoare triple {6498#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {6505#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:20,033 INFO L273 TraceCheckUtils]: 10: Hoare triple {6505#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {6505#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:20,034 INFO L273 TraceCheckUtils]: 11: Hoare triple {6505#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {6512#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:20,034 INFO L273 TraceCheckUtils]: 12: Hoare triple {6512#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {6512#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:20,035 INFO L273 TraceCheckUtils]: 13: Hoare triple {6512#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {6519#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:20,036 INFO L273 TraceCheckUtils]: 14: Hoare triple {6519#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {6519#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:20,036 INFO L273 TraceCheckUtils]: 15: Hoare triple {6519#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {6526#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:20,037 INFO L273 TraceCheckUtils]: 16: Hoare triple {6526#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {6526#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:20,038 INFO L273 TraceCheckUtils]: 17: Hoare triple {6526#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {6533#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:20,038 INFO L273 TraceCheckUtils]: 18: Hoare triple {6533#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {6533#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:20,039 INFO L273 TraceCheckUtils]: 19: Hoare triple {6533#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {6540#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:20,040 INFO L273 TraceCheckUtils]: 20: Hoare triple {6540#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {6540#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:20,040 INFO L273 TraceCheckUtils]: 21: Hoare triple {6540#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {6547#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:20,041 INFO L273 TraceCheckUtils]: 22: Hoare triple {6547#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {6547#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:20,042 INFO L273 TraceCheckUtils]: 23: Hoare triple {6547#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {6554#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:20,042 INFO L273 TraceCheckUtils]: 24: Hoare triple {6554#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {6554#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:20,043 INFO L273 TraceCheckUtils]: 25: Hoare triple {6554#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {6561#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:20,044 INFO L273 TraceCheckUtils]: 26: Hoare triple {6561#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {6561#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:20,045 INFO L273 TraceCheckUtils]: 27: Hoare triple {6561#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {6568#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:20,045 INFO L273 TraceCheckUtils]: 28: Hoare triple {6568#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {6568#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:20,046 INFO L273 TraceCheckUtils]: 29: Hoare triple {6568#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {6575#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:20,047 INFO L273 TraceCheckUtils]: 30: Hoare triple {6575#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {6575#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:20,047 INFO L273 TraceCheckUtils]: 31: Hoare triple {6575#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {6582#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:20,061 INFO L273 TraceCheckUtils]: 32: Hoare triple {6582#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {6582#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:20,061 INFO L273 TraceCheckUtils]: 33: Hoare triple {6582#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {6589#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:20,062 INFO L273 TraceCheckUtils]: 34: Hoare triple {6589#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {6589#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:20,062 INFO L273 TraceCheckUtils]: 35: Hoare triple {6589#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {6596#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:20,063 INFO L273 TraceCheckUtils]: 36: Hoare triple {6596#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {6596#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:20,063 INFO L273 TraceCheckUtils]: 37: Hoare triple {6596#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {6603#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:20,063 INFO L273 TraceCheckUtils]: 38: Hoare triple {6603#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {6603#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:20,064 INFO L273 TraceCheckUtils]: 39: Hoare triple {6603#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {6610#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} is VALID [2019-01-31 14:32:20,064 INFO L273 TraceCheckUtils]: 40: Hoare triple {6610#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} assume i <= n * 4; {6610#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} is VALID [2019-01-31 14:32:20,065 INFO L273 TraceCheckUtils]: 41: Hoare triple {6610#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} assume a[i] != 23;i := i + 4; {6617#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:20,065 INFO L273 TraceCheckUtils]: 42: Hoare triple {6617#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {6621#(and (= main_i 84) (<= main_i (* 4 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:20,066 INFO L273 TraceCheckUtils]: 43: Hoare triple {6621#(and (= main_i 84) (<= main_i (* 4 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {6469#(and (<= main_i 88) (<= 22 main_n))} is VALID [2019-01-31 14:32:20,066 INFO L273 TraceCheckUtils]: 44: Hoare triple {6469#(and (<= main_i 88) (<= 22 main_n))} assume !(i <= n * 4); {6445#false} is VALID [2019-01-31 14:32:20,073 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 14:32:20,074 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2019-01-31 14:32:21,710 INFO L273 TraceCheckUtils]: 44: Hoare triple {6628#(<= main_i (* 4 main_n))} assume !(i <= n * 4); {6445#false} is VALID [2019-01-31 14:32:21,711 INFO L273 TraceCheckUtils]: 43: Hoare triple {6632#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} assume a[i] != 23;i := i + 4; {6628#(<= main_i (* 4 main_n))} is VALID [2019-01-31 14:32:21,712 INFO L273 TraceCheckUtils]: 42: Hoare triple {6636#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} assume i <= n * 4; {6632#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} is VALID [2019-01-31 14:32:21,713 INFO L273 TraceCheckUtils]: 41: Hoare triple {6640#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume a[i] != 23;i := i + 4; {6636#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} is VALID [2019-01-31 14:32:21,714 INFO L273 TraceCheckUtils]: 40: Hoare triple {6640#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume i <= n * 4; {6640#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2019-01-31 14:32:21,715 INFO L273 TraceCheckUtils]: 39: Hoare triple {6647#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume a[i] != 23;i := i + 4; {6640#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2019-01-31 14:32:21,715 INFO L273 TraceCheckUtils]: 38: Hoare triple {6647#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume i <= n * 4; {6647#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2019-01-31 14:32:21,716 INFO L273 TraceCheckUtils]: 37: Hoare triple {6654#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume a[i] != 23;i := i + 4; {6647#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2019-01-31 14:32:21,717 INFO L273 TraceCheckUtils]: 36: Hoare triple {6654#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume i <= n * 4; {6654#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2019-01-31 14:32:21,718 INFO L273 TraceCheckUtils]: 35: Hoare triple {6661#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume a[i] != 23;i := i + 4; {6654#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2019-01-31 14:32:21,718 INFO L273 TraceCheckUtils]: 34: Hoare triple {6661#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume i <= n * 4; {6661#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2019-01-31 14:32:21,719 INFO L273 TraceCheckUtils]: 33: Hoare triple {6668#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {6661#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2019-01-31 14:32:21,720 INFO L273 TraceCheckUtils]: 32: Hoare triple {6668#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume i <= n * 4; {6668#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2019-01-31 14:32:21,721 INFO L273 TraceCheckUtils]: 31: Hoare triple {6675#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume a[i] != 23;i := i + 4; {6668#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2019-01-31 14:32:21,722 INFO L273 TraceCheckUtils]: 30: Hoare triple {6675#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume i <= n * 4; {6675#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2019-01-31 14:32:21,723 INFO L273 TraceCheckUtils]: 29: Hoare triple {6682#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {6675#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2019-01-31 14:32:21,723 INFO L273 TraceCheckUtils]: 28: Hoare triple {6682#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume i <= n * 4; {6682#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2019-01-31 14:32:21,724 INFO L273 TraceCheckUtils]: 27: Hoare triple {6689#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {6682#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2019-01-31 14:32:21,725 INFO L273 TraceCheckUtils]: 26: Hoare triple {6689#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume i <= n * 4; {6689#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2019-01-31 14:32:21,726 INFO L273 TraceCheckUtils]: 25: Hoare triple {6696#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {6689#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2019-01-31 14:32:21,726 INFO L273 TraceCheckUtils]: 24: Hoare triple {6696#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume i <= n * 4; {6696#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2019-01-31 14:32:21,727 INFO L273 TraceCheckUtils]: 23: Hoare triple {6703#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} assume a[i] != 23;i := i + 4; {6696#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2019-01-31 14:32:21,728 INFO L273 TraceCheckUtils]: 22: Hoare triple {6703#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} assume i <= n * 4; {6703#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} is VALID [2019-01-31 14:32:21,729 INFO L273 TraceCheckUtils]: 21: Hoare triple {6710#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {6703#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} is VALID [2019-01-31 14:32:21,729 INFO L273 TraceCheckUtils]: 20: Hoare triple {6710#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} assume i <= n * 4; {6710#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} is VALID [2019-01-31 14:32:21,731 INFO L273 TraceCheckUtils]: 19: Hoare triple {6717#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {6710#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} is VALID [2019-01-31 14:32:21,731 INFO L273 TraceCheckUtils]: 18: Hoare triple {6717#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} assume i <= n * 4; {6717#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} is VALID [2019-01-31 14:32:21,732 INFO L273 TraceCheckUtils]: 17: Hoare triple {6724#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} assume a[i] != 23;i := i + 4; {6717#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} is VALID [2019-01-31 14:32:21,733 INFO L273 TraceCheckUtils]: 16: Hoare triple {6724#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} assume i <= n * 4; {6724#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} is VALID [2019-01-31 14:32:21,734 INFO L273 TraceCheckUtils]: 15: Hoare triple {6731#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {6724#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} is VALID [2019-01-31 14:32:21,734 INFO L273 TraceCheckUtils]: 14: Hoare triple {6731#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} assume i <= n * 4; {6731#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} is VALID [2019-01-31 14:32:21,735 INFO L273 TraceCheckUtils]: 13: Hoare triple {6738#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} assume a[i] != 23;i := i + 4; {6731#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} is VALID [2019-01-31 14:32:21,736 INFO L273 TraceCheckUtils]: 12: Hoare triple {6738#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} assume i <= n * 4; {6738#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} is VALID [2019-01-31 14:32:21,737 INFO L273 TraceCheckUtils]: 11: Hoare triple {6745#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} assume a[i] != 23;i := i + 4; {6738#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} is VALID [2019-01-31 14:32:21,737 INFO L273 TraceCheckUtils]: 10: Hoare triple {6745#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} assume i <= n * 4; {6745#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} is VALID [2019-01-31 14:32:21,739 INFO L273 TraceCheckUtils]: 9: Hoare triple {6752#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} assume a[i] != 23;i := i + 4; {6745#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} is VALID [2019-01-31 14:32:21,739 INFO L273 TraceCheckUtils]: 8: Hoare triple {6752#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} assume i <= n * 4; {6752#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} is VALID [2019-01-31 14:32:21,740 INFO L273 TraceCheckUtils]: 7: Hoare triple {6759#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} assume a[i] != 23;i := i + 4; {6752#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} is VALID [2019-01-31 14:32:21,741 INFO L273 TraceCheckUtils]: 6: Hoare triple {6759#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} assume i <= n * 4; {6759#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} is VALID [2019-01-31 14:32:21,742 INFO L273 TraceCheckUtils]: 5: Hoare triple {6766#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} assume a[i] != 23;i := i + 4; {6759#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} is VALID [2019-01-31 14:32:21,742 INFO L273 TraceCheckUtils]: 4: Hoare triple {6766#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} assume i <= n * 4; {6766#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} is VALID [2019-01-31 14:32:21,743 INFO L273 TraceCheckUtils]: 3: Hoare triple {6773#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} assume a[i] != 23;i := i + 4; {6766#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} is VALID [2019-01-31 14:32:21,744 INFO L273 TraceCheckUtils]: 2: Hoare triple {6773#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} assume i <= n * 4; {6773#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} is VALID [2019-01-31 14:32:21,745 INFO L273 TraceCheckUtils]: 1: Hoare triple {6780#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {6773#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} is VALID [2019-01-31 14:32:21,746 INFO L273 TraceCheckUtils]: 0: Hoare triple {6444#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {6780#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} is VALID [2019-01-31 14:32:21,755 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 14:32:21,773 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-01-31 14:32:21,774 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24, 24] total 71 [2019-01-31 14:32:21,774 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-01-31 14:32:21,774 INFO L78 Accepts]: Start accepts. Automaton has 49 states. Word has length 45 [2019-01-31 14:32:21,774 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-01-31 14:32:21,774 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 49 states. [2019-01-31 14:32:21,876 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 14:32:21,877 INFO L459 AbstractCegarLoop]: Interpolant automaton has 49 states [2019-01-31 14:32:21,877 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2019-01-31 14:32:21,878 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=704, Invalid=4552, Unknown=0, NotChecked=0, Total=5256 [2019-01-31 14:32:21,878 INFO L87 Difference]: Start difference. First operand 46 states and 46 transitions. Second operand 49 states. [2019-01-31 14:32:25,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 14:32:25,872 INFO L93 Difference]: Finished difference Result 50 states and 50 transitions. [2019-01-31 14:32:25,872 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2019-01-31 14:32:25,872 INFO L78 Accepts]: Start accepts. Automaton has 49 states. Word has length 45 [2019-01-31 14:32:25,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-31 14:32:25,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2019-01-31 14:32:25,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 50 transitions. [2019-01-31 14:32:25,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2019-01-31 14:32:25,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 50 transitions. [2019-01-31 14:32:25,875 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 26 states and 50 transitions. [2019-01-31 14:32:25,927 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 14:32:25,929 INFO L225 Difference]: With dead ends: 50 [2019-01-31 14:32:25,929 INFO L226 Difference]: Without dead ends: 49 [2019-01-31 14:32:25,930 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 40 SyntacticMatches, 1 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1196 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=704, Invalid=4552, Unknown=0, NotChecked=0, Total=5256 [2019-01-31 14:32:25,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2019-01-31 14:32:26,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 48. [2019-01-31 14:32:26,018 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-01-31 14:32:26,018 INFO L82 GeneralOperation]: Start isEquivalent. First operand 49 states. Second operand 48 states. [2019-01-31 14:32:26,018 INFO L74 IsIncluded]: Start isIncluded. First operand 49 states. Second operand 48 states. [2019-01-31 14:32:26,019 INFO L87 Difference]: Start difference. First operand 49 states. Second operand 48 states. [2019-01-31 14:32:26,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 14:32:26,020 INFO L93 Difference]: Finished difference Result 49 states and 49 transitions. [2019-01-31 14:32:26,020 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 49 transitions. [2019-01-31 14:32:26,020 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-31 14:32:26,020 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-01-31 14:32:26,020 INFO L74 IsIncluded]: Start isIncluded. First operand 48 states. Second operand 49 states. [2019-01-31 14:32:26,020 INFO L87 Difference]: Start difference. First operand 48 states. Second operand 49 states. [2019-01-31 14:32:26,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 14:32:26,021 INFO L93 Difference]: Finished difference Result 49 states and 49 transitions. [2019-01-31 14:32:26,021 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 49 transitions. [2019-01-31 14:32:26,021 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-31 14:32:26,021 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-01-31 14:32:26,022 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-01-31 14:32:26,022 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-01-31 14:32:26,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2019-01-31 14:32:26,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 48 transitions. [2019-01-31 14:32:26,022 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 48 transitions. Word has length 45 [2019-01-31 14:32:26,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-31 14:32:26,022 INFO L480 AbstractCegarLoop]: Abstraction has 48 states and 48 transitions. [2019-01-31 14:32:26,023 INFO L481 AbstractCegarLoop]: Interpolant automaton has 49 states. [2019-01-31 14:32:26,023 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 48 transitions. [2019-01-31 14:32:26,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2019-01-31 14:32:26,023 INFO L394 BasicCegarLoop]: Found error trace [2019-01-31 14:32:26,023 INFO L402 BasicCegarLoop]: trace histogram [23, 22, 1, 1] [2019-01-31 14:32:26,023 INFO L423 AbstractCegarLoop]: === Iteration 23 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-01-31 14:32:26,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-31 14:32:26,024 INFO L82 PathProgramCache]: Analyzing trace with hash -1671571700, now seen corresponding path program 22 times [2019-01-31 14:32:26,024 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-01-31 14:32:26,024 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-31 14:32:26,024 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-01-31 14:32:26,024 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-31 14:32:26,024 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-01-31 14:32:26,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-31 14:32:26,464 WARN L181 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 18 [2019-01-31 14:32:26,950 WARN L181 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 17 [2019-01-31 14:32:27,468 WARN L181 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 18 [2019-01-31 14:32:27,955 WARN L181 SmtUtils]: Spent 182.00 ms on a formula simplification that was a NOOP. DAG size: 18 [2019-01-31 14:32:28,947 INFO L273 TraceCheckUtils]: 0: Hoare triple {7026#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {7028#(and (or (<= main_i 0) (<= main_n 22)) (or (and (<= 0 main_i) (= 23 (select main_a (* 4 main_n)))) (< 22 main_n)))} is VALID [2019-01-31 14:32:28,948 INFO L273 TraceCheckUtils]: 1: Hoare triple {7028#(and (or (<= main_i 0) (<= main_n 22)) (or (and (<= 0 main_i) (= 23 (select main_a (* 4 main_n)))) (< 22 main_n)))} assume a[i] != 23;i := i + 4; {7029#(and (or (<= main_n 22) (<= main_i 4)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i)) (< 22 main_n)))} is VALID [2019-01-31 14:32:28,949 INFO L273 TraceCheckUtils]: 2: Hoare triple {7029#(and (or (<= main_n 22) (<= main_i 4)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i)) (< 22 main_n)))} assume i <= n * 4; {7029#(and (or (<= main_n 22) (<= main_i 4)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i)) (< 22 main_n)))} is VALID [2019-01-31 14:32:28,950 INFO L273 TraceCheckUtils]: 3: Hoare triple {7029#(and (or (<= main_n 22) (<= main_i 4)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i)) (< 22 main_n)))} assume a[i] != 23;i := i + 4; {7030#(and (or (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n)))) (< 22 main_n)) (or (<= main_i 8) (<= main_n 22)))} is VALID [2019-01-31 14:32:28,951 INFO L273 TraceCheckUtils]: 4: Hoare triple {7030#(and (or (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n)))) (< 22 main_n)) (or (<= main_i 8) (<= main_n 22)))} assume i <= n * 4; {7030#(and (or (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n)))) (< 22 main_n)) (or (<= main_i 8) (<= main_n 22)))} is VALID [2019-01-31 14:32:28,952 INFO L273 TraceCheckUtils]: 5: Hoare triple {7030#(and (or (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n)))) (< 22 main_n)) (or (<= main_i 8) (<= main_n 22)))} assume a[i] != 23;i := i + 4; {7031#(and (or (<= main_n 22) (<= main_i 12)) (or (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n)))) (< 22 main_n)))} is VALID [2019-01-31 14:32:28,953 INFO L273 TraceCheckUtils]: 6: Hoare triple {7031#(and (or (<= main_n 22) (<= main_i 12)) (or (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n)))) (< 22 main_n)))} assume i <= n * 4; {7031#(and (or (<= main_n 22) (<= main_i 12)) (or (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n)))) (< 22 main_n)))} is VALID [2019-01-31 14:32:28,954 INFO L273 TraceCheckUtils]: 7: Hoare triple {7031#(and (or (<= main_n 22) (<= main_i 12)) (or (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n)))) (< 22 main_n)))} assume a[i] != 23;i := i + 4; {7032#(and (or (<= main_n 22) (<= main_i 16)) (or (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n)))) (< 22 main_n)))} is VALID [2019-01-31 14:32:28,954 INFO L273 TraceCheckUtils]: 8: Hoare triple {7032#(and (or (<= main_n 22) (<= main_i 16)) (or (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n)))) (< 22 main_n)))} assume i <= n * 4; {7032#(and (or (<= main_n 22) (<= main_i 16)) (or (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n)))) (< 22 main_n)))} is VALID [2019-01-31 14:32:28,956 INFO L273 TraceCheckUtils]: 9: Hoare triple {7032#(and (or (<= main_n 22) (<= main_i 16)) (or (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n)))) (< 22 main_n)))} assume a[i] != 23;i := i + 4; {7033#(and (or (< 22 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 20) (<= main_n 22)))} is VALID [2019-01-31 14:32:28,956 INFO L273 TraceCheckUtils]: 10: Hoare triple {7033#(and (or (< 22 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 20) (<= main_n 22)))} assume i <= n * 4; {7033#(and (or (< 22 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 20) (<= main_n 22)))} is VALID [2019-01-31 14:32:28,957 INFO L273 TraceCheckUtils]: 11: Hoare triple {7033#(and (or (< 22 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 20) (<= main_n 22)))} assume a[i] != 23;i := i + 4; {7034#(and (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 22 main_n)) (or (<= main_i 24) (<= main_n 22)))} is VALID [2019-01-31 14:32:28,958 INFO L273 TraceCheckUtils]: 12: Hoare triple {7034#(and (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 22 main_n)) (or (<= main_i 24) (<= main_n 22)))} assume i <= n * 4; {7034#(and (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 22 main_n)) (or (<= main_i 24) (<= main_n 22)))} is VALID [2019-01-31 14:32:28,959 INFO L273 TraceCheckUtils]: 13: Hoare triple {7034#(and (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 22 main_n)) (or (<= main_i 24) (<= main_n 22)))} assume a[i] != 23;i := i + 4; {7035#(and (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 22 main_n)) (or (<= main_n 22) (<= main_i 28)))} is VALID [2019-01-31 14:32:28,960 INFO L273 TraceCheckUtils]: 14: Hoare triple {7035#(and (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 22 main_n)) (or (<= main_n 22) (<= main_i 28)))} assume i <= n * 4; {7035#(and (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 22 main_n)) (or (<= main_n 22) (<= main_i 28)))} is VALID [2019-01-31 14:32:28,961 INFO L273 TraceCheckUtils]: 15: Hoare triple {7035#(and (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 22 main_n)) (or (<= main_n 22) (<= main_i 28)))} assume a[i] != 23;i := i + 4; {7036#(and (or (<= main_i 32) (<= main_n 22)) (or (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n)))) (< 22 main_n)))} is VALID [2019-01-31 14:32:28,962 INFO L273 TraceCheckUtils]: 16: Hoare triple {7036#(and (or (<= main_i 32) (<= main_n 22)) (or (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n)))) (< 22 main_n)))} assume i <= n * 4; {7036#(and (or (<= main_i 32) (<= main_n 22)) (or (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n)))) (< 22 main_n)))} is VALID [2019-01-31 14:32:28,963 INFO L273 TraceCheckUtils]: 17: Hoare triple {7036#(and (or (<= main_i 32) (<= main_n 22)) (or (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n)))) (< 22 main_n)))} assume a[i] != 23;i := i + 4; {7037#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i)) (< 22 main_n)) (or (<= main_i 36) (<= main_n 22)))} is VALID [2019-01-31 14:32:28,964 INFO L273 TraceCheckUtils]: 18: Hoare triple {7037#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i)) (< 22 main_n)) (or (<= main_i 36) (<= main_n 22)))} assume i <= n * 4; {7037#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i)) (< 22 main_n)) (or (<= main_i 36) (<= main_n 22)))} is VALID [2019-01-31 14:32:28,965 INFO L273 TraceCheckUtils]: 19: Hoare triple {7037#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i)) (< 22 main_n)) (or (<= main_i 36) (<= main_n 22)))} assume a[i] != 23;i := i + 4; {7038#(and (or (<= main_i 40) (<= main_n 22)) (or (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n)))) (< 22 main_n)))} is VALID [2019-01-31 14:32:28,966 INFO L273 TraceCheckUtils]: 20: Hoare triple {7038#(and (or (<= main_i 40) (<= main_n 22)) (or (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n)))) (< 22 main_n)))} assume i <= n * 4; {7038#(and (or (<= main_i 40) (<= main_n 22)) (or (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n)))) (< 22 main_n)))} is VALID [2019-01-31 14:32:28,967 INFO L273 TraceCheckUtils]: 21: Hoare triple {7038#(and (or (<= main_i 40) (<= main_n 22)) (or (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n)))) (< 22 main_n)))} assume a[i] != 23;i := i + 4; {7039#(and (or (<= main_n 22) (<= main_i 44)) (or (< 22 main_n) (and (<= 44 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:32:28,967 INFO L273 TraceCheckUtils]: 22: Hoare triple {7039#(and (or (<= main_n 22) (<= main_i 44)) (or (< 22 main_n) (and (<= 44 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {7039#(and (or (<= main_n 22) (<= main_i 44)) (or (< 22 main_n) (and (<= 44 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:32:28,968 INFO L273 TraceCheckUtils]: 23: Hoare triple {7039#(and (or (<= main_n 22) (<= main_i 44)) (or (< 22 main_n) (and (<= 44 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {7040#(and (or (<= main_n 22) (<= main_i 48)) (or (and (<= 48 main_i) (= 23 (select main_a (* 4 main_n)))) (< 22 main_n)))} is VALID [2019-01-31 14:32:28,969 INFO L273 TraceCheckUtils]: 24: Hoare triple {7040#(and (or (<= main_n 22) (<= main_i 48)) (or (and (<= 48 main_i) (= 23 (select main_a (* 4 main_n)))) (< 22 main_n)))} assume i <= n * 4; {7040#(and (or (<= main_n 22) (<= main_i 48)) (or (and (<= 48 main_i) (= 23 (select main_a (* 4 main_n)))) (< 22 main_n)))} is VALID [2019-01-31 14:32:28,970 INFO L273 TraceCheckUtils]: 25: Hoare triple {7040#(and (or (<= main_n 22) (<= main_i 48)) (or (and (<= 48 main_i) (= 23 (select main_a (* 4 main_n)))) (< 22 main_n)))} assume a[i] != 23;i := i + 4; {7041#(and (or (and (<= 52 main_i) (= 23 (select main_a (* 4 main_n)))) (< 22 main_n)) (or (<= main_i 52) (<= main_n 22)))} is VALID [2019-01-31 14:32:28,971 INFO L273 TraceCheckUtils]: 26: Hoare triple {7041#(and (or (and (<= 52 main_i) (= 23 (select main_a (* 4 main_n)))) (< 22 main_n)) (or (<= main_i 52) (<= main_n 22)))} assume i <= n * 4; {7041#(and (or (and (<= 52 main_i) (= 23 (select main_a (* 4 main_n)))) (< 22 main_n)) (or (<= main_i 52) (<= main_n 22)))} is VALID [2019-01-31 14:32:28,972 INFO L273 TraceCheckUtils]: 27: Hoare triple {7041#(and (or (and (<= 52 main_i) (= 23 (select main_a (* 4 main_n)))) (< 22 main_n)) (or (<= main_i 52) (<= main_n 22)))} assume a[i] != 23;i := i + 4; {7042#(and (or (<= main_i 56) (<= main_n 22)) (or (and (<= 56 main_i) (= 23 (select main_a (* 4 main_n)))) (< 22 main_n)))} is VALID [2019-01-31 14:32:28,973 INFO L273 TraceCheckUtils]: 28: Hoare triple {7042#(and (or (<= main_i 56) (<= main_n 22)) (or (and (<= 56 main_i) (= 23 (select main_a (* 4 main_n)))) (< 22 main_n)))} assume i <= n * 4; {7042#(and (or (<= main_i 56) (<= main_n 22)) (or (and (<= 56 main_i) (= 23 (select main_a (* 4 main_n)))) (< 22 main_n)))} is VALID [2019-01-31 14:32:28,974 INFO L273 TraceCheckUtils]: 29: Hoare triple {7042#(and (or (<= main_i 56) (<= main_n 22)) (or (and (<= 56 main_i) (= 23 (select main_a (* 4 main_n)))) (< 22 main_n)))} assume a[i] != 23;i := i + 4; {7043#(and (or (< 22 main_n) (and (<= 60 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 60) (<= main_n 22)))} is VALID [2019-01-31 14:32:28,975 INFO L273 TraceCheckUtils]: 30: Hoare triple {7043#(and (or (< 22 main_n) (and (<= 60 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 60) (<= main_n 22)))} assume i <= n * 4; {7043#(and (or (< 22 main_n) (and (<= 60 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 60) (<= main_n 22)))} is VALID [2019-01-31 14:32:28,976 INFO L273 TraceCheckUtils]: 31: Hoare triple {7043#(and (or (< 22 main_n) (and (<= 60 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 60) (<= main_n 22)))} assume a[i] != 23;i := i + 4; {7044#(and (or (and (<= 64 main_i) (= 23 (select main_a (* 4 main_n)))) (< 22 main_n)) (or (<= main_i 64) (<= main_n 22)))} is VALID [2019-01-31 14:32:28,977 INFO L273 TraceCheckUtils]: 32: Hoare triple {7044#(and (or (and (<= 64 main_i) (= 23 (select main_a (* 4 main_n)))) (< 22 main_n)) (or (<= main_i 64) (<= main_n 22)))} assume i <= n * 4; {7044#(and (or (and (<= 64 main_i) (= 23 (select main_a (* 4 main_n)))) (< 22 main_n)) (or (<= main_i 64) (<= main_n 22)))} is VALID [2019-01-31 14:32:28,978 INFO L273 TraceCheckUtils]: 33: Hoare triple {7044#(and (or (and (<= 64 main_i) (= 23 (select main_a (* 4 main_n)))) (< 22 main_n)) (or (<= main_i 64) (<= main_n 22)))} assume a[i] != 23;i := i + 4; {7045#(and (or (<= main_n 22) (<= main_i 68)) (or (and (<= 68 main_i) (= 23 (select main_a (* 4 main_n)))) (< 22 main_n)))} is VALID [2019-01-31 14:32:28,978 INFO L273 TraceCheckUtils]: 34: Hoare triple {7045#(and (or (<= main_n 22) (<= main_i 68)) (or (and (<= 68 main_i) (= 23 (select main_a (* 4 main_n)))) (< 22 main_n)))} assume i <= n * 4; {7045#(and (or (<= main_n 22) (<= main_i 68)) (or (and (<= 68 main_i) (= 23 (select main_a (* 4 main_n)))) (< 22 main_n)))} is VALID [2019-01-31 14:32:28,979 INFO L273 TraceCheckUtils]: 35: Hoare triple {7045#(and (or (<= main_n 22) (<= main_i 68)) (or (and (<= 68 main_i) (= 23 (select main_a (* 4 main_n)))) (< 22 main_n)))} assume a[i] != 23;i := i + 4; {7046#(and (or (and (<= 72 main_i) (= 23 (select main_a (* 4 main_n)))) (< 22 main_n)) (or (<= main_n 22) (<= main_i 72)))} is VALID [2019-01-31 14:32:28,980 INFO L273 TraceCheckUtils]: 36: Hoare triple {7046#(and (or (and (<= 72 main_i) (= 23 (select main_a (* 4 main_n)))) (< 22 main_n)) (or (<= main_n 22) (<= main_i 72)))} assume i <= n * 4; {7046#(and (or (and (<= 72 main_i) (= 23 (select main_a (* 4 main_n)))) (< 22 main_n)) (or (<= main_n 22) (<= main_i 72)))} is VALID [2019-01-31 14:32:28,981 INFO L273 TraceCheckUtils]: 37: Hoare triple {7046#(and (or (and (<= 72 main_i) (= 23 (select main_a (* 4 main_n)))) (< 22 main_n)) (or (<= main_n 22) (<= main_i 72)))} assume a[i] != 23;i := i + 4; {7047#(and (or (<= main_i 76) (<= main_n 22)) (or (and (<= 76 main_i) (= 23 (select main_a (* 4 main_n)))) (< 22 main_n)))} is VALID [2019-01-31 14:32:28,982 INFO L273 TraceCheckUtils]: 38: Hoare triple {7047#(and (or (<= main_i 76) (<= main_n 22)) (or (and (<= 76 main_i) (= 23 (select main_a (* 4 main_n)))) (< 22 main_n)))} assume i <= n * 4; {7047#(and (or (<= main_i 76) (<= main_n 22)) (or (and (<= 76 main_i) (= 23 (select main_a (* 4 main_n)))) (< 22 main_n)))} is VALID [2019-01-31 14:32:28,983 INFO L273 TraceCheckUtils]: 39: Hoare triple {7047#(and (or (<= main_i 76) (<= main_n 22)) (or (and (<= 76 main_i) (= 23 (select main_a (* 4 main_n)))) (< 22 main_n)))} assume a[i] != 23;i := i + 4; {7048#(and (or (and (<= 80 main_i) (= 23 (select main_a (* 4 main_n)))) (< 22 main_n)) (or (<= main_n 22) (<= main_i 80)))} is VALID [2019-01-31 14:32:28,984 INFO L273 TraceCheckUtils]: 40: Hoare triple {7048#(and (or (and (<= 80 main_i) (= 23 (select main_a (* 4 main_n)))) (< 22 main_n)) (or (<= main_n 22) (<= main_i 80)))} assume i <= n * 4; {7048#(and (or (and (<= 80 main_i) (= 23 (select main_a (* 4 main_n)))) (< 22 main_n)) (or (<= main_n 22) (<= main_i 80)))} is VALID [2019-01-31 14:32:28,985 INFO L273 TraceCheckUtils]: 41: Hoare triple {7048#(and (or (and (<= 80 main_i) (= 23 (select main_a (* 4 main_n)))) (< 22 main_n)) (or (<= main_n 22) (<= main_i 80)))} assume a[i] != 23;i := i + 4; {7049#(and (or (<= main_i 84) (<= main_n 22)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 84 main_i)) (< 22 main_n)))} is VALID [2019-01-31 14:32:28,986 INFO L273 TraceCheckUtils]: 42: Hoare triple {7049#(and (or (<= main_i 84) (<= main_n 22)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 84 main_i)) (< 22 main_n)))} assume i <= n * 4; {7049#(and (or (<= main_i 84) (<= main_n 22)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 84 main_i)) (< 22 main_n)))} is VALID [2019-01-31 14:32:28,987 INFO L273 TraceCheckUtils]: 43: Hoare triple {7049#(and (or (<= main_i 84) (<= main_n 22)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 84 main_i)) (< 22 main_n)))} assume a[i] != 23;i := i + 4; {7050#(and (or (and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (<= (* 4 main_n) main_i)) (< 22 main_n)) (or (<= main_i 88) (<= main_n 22)))} is VALID [2019-01-31 14:32:28,988 INFO L273 TraceCheckUtils]: 44: Hoare triple {7050#(and (or (and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (<= (* 4 main_n) main_i)) (< 22 main_n)) (or (<= main_i 88) (<= main_n 22)))} assume i <= n * 4; {7051#(and (<= main_i 88) (or (< 22 main_n) (and (<= (* 4 main_n) main_i) (<= main_i (* 4 main_n)) (= 23 (select main_a main_i)))))} is VALID [2019-01-31 14:32:28,989 INFO L273 TraceCheckUtils]: 45: Hoare triple {7051#(and (<= main_i 88) (or (< 22 main_n) (and (<= (* 4 main_n) main_i) (<= main_i (* 4 main_n)) (= 23 (select main_a main_i)))))} assume a[i] != 23;i := i + 4; {7052#(and (<= main_i 92) (< 22 main_n))} is VALID [2019-01-31 14:32:28,990 INFO L273 TraceCheckUtils]: 46: Hoare triple {7052#(and (<= main_i 92) (< 22 main_n))} assume !(i <= n * 4); {7027#false} is VALID [2019-01-31 14:32:29,001 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 14:32:29,001 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-31 14:32:29,002 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-01-31 14:32:29,002 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-01-31 14:32:29,002 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-01-31 14:32:29,002 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-31 14:32:29,002 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 14:32:29,010 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-31 14:32:29,010 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2019-01-31 14:32:29,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-31 14:32:29,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-31 14:32:29,030 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-31 14:32:29,040 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 14:32:29,046 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-01-31 14:32:29,056 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-31 14:32:29,056 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2019-01-31 14:32:29,061 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-01-31 14:32:29,061 WARN L398 uantifierElimination]: Input elimination task: ∃ [v_main_a_26]. (and (= main_a (store v_main_a_26 (* 4 main_n) 23)) (= main_i 0)) [2019-01-31 14:32:29,061 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2019-01-31 14:32:30,115 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2019-01-31 14:32:30,117 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-01-31 14:32:30,122 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-31 14:32:30,122 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2019-01-31 14:32:30,125 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-01-31 14:32:30,125 WARN L398 uantifierElimination]: Input elimination task: ∃ [main_a]. (let ((.cse0 (* 4 main_n))) (and (<= main_i 92) (not (= (select main_a 88) 23)) (= 23 (select main_a .cse0)) (<= 88 .cse0))) [2019-01-31 14:32:30,125 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (let ((.cse0 (* 4 main_n))) (and (<= main_i 92) (not (= 88 .cse0)) (<= 88 .cse0))) [2019-01-31 14:32:30,159 INFO L273 TraceCheckUtils]: 0: Hoare triple {7026#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {7056#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:30,160 INFO L273 TraceCheckUtils]: 1: Hoare triple {7056#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {7060#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2019-01-31 14:32:30,160 INFO L273 TraceCheckUtils]: 2: Hoare triple {7060#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume i <= n * 4; {7060#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2019-01-31 14:32:30,161 INFO L273 TraceCheckUtils]: 3: Hoare triple {7060#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume a[i] != 23;i := i + 4; {7067#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:30,162 INFO L273 TraceCheckUtils]: 4: Hoare triple {7067#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {7067#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:30,163 INFO L273 TraceCheckUtils]: 5: Hoare triple {7067#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {7074#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2019-01-31 14:32:30,163 INFO L273 TraceCheckUtils]: 6: Hoare triple {7074#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume i <= n * 4; {7074#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2019-01-31 14:32:30,164 INFO L273 TraceCheckUtils]: 7: Hoare triple {7074#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume a[i] != 23;i := i + 4; {7081#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:30,165 INFO L273 TraceCheckUtils]: 8: Hoare triple {7081#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {7081#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:30,165 INFO L273 TraceCheckUtils]: 9: Hoare triple {7081#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {7088#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:30,166 INFO L273 TraceCheckUtils]: 10: Hoare triple {7088#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {7088#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:30,167 INFO L273 TraceCheckUtils]: 11: Hoare triple {7088#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {7095#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:30,167 INFO L273 TraceCheckUtils]: 12: Hoare triple {7095#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {7095#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:30,168 INFO L273 TraceCheckUtils]: 13: Hoare triple {7095#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {7102#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:30,169 INFO L273 TraceCheckUtils]: 14: Hoare triple {7102#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {7102#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:30,170 INFO L273 TraceCheckUtils]: 15: Hoare triple {7102#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {7109#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:30,170 INFO L273 TraceCheckUtils]: 16: Hoare triple {7109#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {7109#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:30,171 INFO L273 TraceCheckUtils]: 17: Hoare triple {7109#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {7116#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:30,172 INFO L273 TraceCheckUtils]: 18: Hoare triple {7116#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {7116#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:30,172 INFO L273 TraceCheckUtils]: 19: Hoare triple {7116#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {7123#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:30,173 INFO L273 TraceCheckUtils]: 20: Hoare triple {7123#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {7123#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:30,174 INFO L273 TraceCheckUtils]: 21: Hoare triple {7123#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {7130#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:30,174 INFO L273 TraceCheckUtils]: 22: Hoare triple {7130#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {7130#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:30,175 INFO L273 TraceCheckUtils]: 23: Hoare triple {7130#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {7137#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:30,176 INFO L273 TraceCheckUtils]: 24: Hoare triple {7137#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {7137#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:30,176 INFO L273 TraceCheckUtils]: 25: Hoare triple {7137#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {7144#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:30,177 INFO L273 TraceCheckUtils]: 26: Hoare triple {7144#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {7144#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:30,178 INFO L273 TraceCheckUtils]: 27: Hoare triple {7144#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {7151#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:30,179 INFO L273 TraceCheckUtils]: 28: Hoare triple {7151#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {7151#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:30,179 INFO L273 TraceCheckUtils]: 29: Hoare triple {7151#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {7158#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:30,180 INFO L273 TraceCheckUtils]: 30: Hoare triple {7158#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {7158#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:30,181 INFO L273 TraceCheckUtils]: 31: Hoare triple {7158#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {7165#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:30,181 INFO L273 TraceCheckUtils]: 32: Hoare triple {7165#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {7165#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:30,182 INFO L273 TraceCheckUtils]: 33: Hoare triple {7165#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {7172#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:30,183 INFO L273 TraceCheckUtils]: 34: Hoare triple {7172#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {7172#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:30,183 INFO L273 TraceCheckUtils]: 35: Hoare triple {7172#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {7179#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:30,184 INFO L273 TraceCheckUtils]: 36: Hoare triple {7179#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {7179#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:30,185 INFO L273 TraceCheckUtils]: 37: Hoare triple {7179#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {7186#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:30,185 INFO L273 TraceCheckUtils]: 38: Hoare triple {7186#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {7186#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:30,186 INFO L273 TraceCheckUtils]: 39: Hoare triple {7186#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {7193#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} is VALID [2019-01-31 14:32:30,187 INFO L273 TraceCheckUtils]: 40: Hoare triple {7193#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} assume i <= n * 4; {7193#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} is VALID [2019-01-31 14:32:30,188 INFO L273 TraceCheckUtils]: 41: Hoare triple {7193#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} assume a[i] != 23;i := i + 4; {7200#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:30,188 INFO L273 TraceCheckUtils]: 42: Hoare triple {7200#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {7200#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:30,189 INFO L273 TraceCheckUtils]: 43: Hoare triple {7200#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {7207#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:30,190 INFO L273 TraceCheckUtils]: 44: Hoare triple {7207#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {7211#(and (<= main_i (* 4 main_n)) (= main_i 88) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:30,191 INFO L273 TraceCheckUtils]: 45: Hoare triple {7211#(and (<= main_i (* 4 main_n)) (= main_i 88) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {7052#(and (<= main_i 92) (< 22 main_n))} is VALID [2019-01-31 14:32:30,191 INFO L273 TraceCheckUtils]: 46: Hoare triple {7052#(and (<= main_i 92) (< 22 main_n))} assume !(i <= n * 4); {7027#false} is VALID [2019-01-31 14:32:30,199 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 14:32:30,199 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2019-01-31 14:32:31,959 INFO L273 TraceCheckUtils]: 46: Hoare triple {7218#(<= main_i (* 4 main_n))} assume !(i <= n * 4); {7027#false} is VALID [2019-01-31 14:32:31,960 INFO L273 TraceCheckUtils]: 45: Hoare triple {7222#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} assume a[i] != 23;i := i + 4; {7218#(<= main_i (* 4 main_n))} is VALID [2019-01-31 14:32:31,961 INFO L273 TraceCheckUtils]: 44: Hoare triple {7226#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} assume i <= n * 4; {7222#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} is VALID [2019-01-31 14:32:31,961 INFO L273 TraceCheckUtils]: 43: Hoare triple {7230#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume a[i] != 23;i := i + 4; {7226#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} is VALID [2019-01-31 14:32:31,962 INFO L273 TraceCheckUtils]: 42: Hoare triple {7230#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume i <= n * 4; {7230#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2019-01-31 14:32:31,962 INFO L273 TraceCheckUtils]: 41: Hoare triple {7237#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume a[i] != 23;i := i + 4; {7230#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2019-01-31 14:32:31,963 INFO L273 TraceCheckUtils]: 40: Hoare triple {7237#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume i <= n * 4; {7237#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2019-01-31 14:32:31,964 INFO L273 TraceCheckUtils]: 39: Hoare triple {7244#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume a[i] != 23;i := i + 4; {7237#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2019-01-31 14:32:31,965 INFO L273 TraceCheckUtils]: 38: Hoare triple {7244#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume i <= n * 4; {7244#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2019-01-31 14:32:31,966 INFO L273 TraceCheckUtils]: 37: Hoare triple {7251#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume a[i] != 23;i := i + 4; {7244#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2019-01-31 14:32:31,966 INFO L273 TraceCheckUtils]: 36: Hoare triple {7251#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume i <= n * 4; {7251#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2019-01-31 14:32:31,967 INFO L273 TraceCheckUtils]: 35: Hoare triple {7258#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {7251#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2019-01-31 14:32:31,968 INFO L273 TraceCheckUtils]: 34: Hoare triple {7258#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume i <= n * 4; {7258#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2019-01-31 14:32:31,969 INFO L273 TraceCheckUtils]: 33: Hoare triple {7265#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume a[i] != 23;i := i + 4; {7258#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2019-01-31 14:32:31,969 INFO L273 TraceCheckUtils]: 32: Hoare triple {7265#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume i <= n * 4; {7265#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2019-01-31 14:32:31,970 INFO L273 TraceCheckUtils]: 31: Hoare triple {7272#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {7265#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2019-01-31 14:32:31,971 INFO L273 TraceCheckUtils]: 30: Hoare triple {7272#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume i <= n * 4; {7272#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2019-01-31 14:32:31,972 INFO L273 TraceCheckUtils]: 29: Hoare triple {7279#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {7272#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2019-01-31 14:32:31,972 INFO L273 TraceCheckUtils]: 28: Hoare triple {7279#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume i <= n * 4; {7279#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2019-01-31 14:32:31,974 INFO L273 TraceCheckUtils]: 27: Hoare triple {7286#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {7279#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2019-01-31 14:32:31,974 INFO L273 TraceCheckUtils]: 26: Hoare triple {7286#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume i <= n * 4; {7286#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2019-01-31 14:32:31,975 INFO L273 TraceCheckUtils]: 25: Hoare triple {7293#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} assume a[i] != 23;i := i + 4; {7286#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2019-01-31 14:32:31,976 INFO L273 TraceCheckUtils]: 24: Hoare triple {7293#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} assume i <= n * 4; {7293#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} is VALID [2019-01-31 14:32:31,977 INFO L273 TraceCheckUtils]: 23: Hoare triple {7300#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {7293#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} is VALID [2019-01-31 14:32:31,977 INFO L273 TraceCheckUtils]: 22: Hoare triple {7300#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} assume i <= n * 4; {7300#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} is VALID [2019-01-31 14:32:31,978 INFO L273 TraceCheckUtils]: 21: Hoare triple {7307#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {7300#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} is VALID [2019-01-31 14:32:31,979 INFO L273 TraceCheckUtils]: 20: Hoare triple {7307#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} assume i <= n * 4; {7307#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} is VALID [2019-01-31 14:32:31,980 INFO L273 TraceCheckUtils]: 19: Hoare triple {7314#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} assume a[i] != 23;i := i + 4; {7307#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} is VALID [2019-01-31 14:32:31,981 INFO L273 TraceCheckUtils]: 18: Hoare triple {7314#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} assume i <= n * 4; {7314#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} is VALID [2019-01-31 14:32:31,982 INFO L273 TraceCheckUtils]: 17: Hoare triple {7321#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {7314#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} is VALID [2019-01-31 14:32:31,982 INFO L273 TraceCheckUtils]: 16: Hoare triple {7321#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} assume i <= n * 4; {7321#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} is VALID [2019-01-31 14:32:31,983 INFO L273 TraceCheckUtils]: 15: Hoare triple {7328#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} assume a[i] != 23;i := i + 4; {7321#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} is VALID [2019-01-31 14:32:31,984 INFO L273 TraceCheckUtils]: 14: Hoare triple {7328#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} assume i <= n * 4; {7328#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} is VALID [2019-01-31 14:32:31,985 INFO L273 TraceCheckUtils]: 13: Hoare triple {7335#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} assume a[i] != 23;i := i + 4; {7328#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} is VALID [2019-01-31 14:32:31,985 INFO L273 TraceCheckUtils]: 12: Hoare triple {7335#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} assume i <= n * 4; {7335#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} is VALID [2019-01-31 14:32:31,986 INFO L273 TraceCheckUtils]: 11: Hoare triple {7342#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} assume a[i] != 23;i := i + 4; {7335#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} is VALID [2019-01-31 14:32:31,987 INFO L273 TraceCheckUtils]: 10: Hoare triple {7342#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} assume i <= n * 4; {7342#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} is VALID [2019-01-31 14:32:31,988 INFO L273 TraceCheckUtils]: 9: Hoare triple {7349#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} assume a[i] != 23;i := i + 4; {7342#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} is VALID [2019-01-31 14:32:31,988 INFO L273 TraceCheckUtils]: 8: Hoare triple {7349#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} assume i <= n * 4; {7349#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} is VALID [2019-01-31 14:32:31,990 INFO L273 TraceCheckUtils]: 7: Hoare triple {7356#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} assume a[i] != 23;i := i + 4; {7349#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} is VALID [2019-01-31 14:32:31,990 INFO L273 TraceCheckUtils]: 6: Hoare triple {7356#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} assume i <= n * 4; {7356#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} is VALID [2019-01-31 14:32:31,991 INFO L273 TraceCheckUtils]: 5: Hoare triple {7363#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} assume a[i] != 23;i := i + 4; {7356#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} is VALID [2019-01-31 14:32:31,992 INFO L273 TraceCheckUtils]: 4: Hoare triple {7363#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} assume i <= n * 4; {7363#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} is VALID [2019-01-31 14:32:31,993 INFO L273 TraceCheckUtils]: 3: Hoare triple {7370#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {7363#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} is VALID [2019-01-31 14:32:31,993 INFO L273 TraceCheckUtils]: 2: Hoare triple {7370#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} assume i <= n * 4; {7370#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} is VALID [2019-01-31 14:32:31,994 INFO L273 TraceCheckUtils]: 1: Hoare triple {7377#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {7370#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} is VALID [2019-01-31 14:32:31,995 INFO L273 TraceCheckUtils]: 0: Hoare triple {7026#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {7377#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} is VALID [2019-01-31 14:32:32,005 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 14:32:32,024 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-01-31 14:32:32,024 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 25, 25] total 74 [2019-01-31 14:32:32,024 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-01-31 14:32:32,024 INFO L78 Accepts]: Start accepts. Automaton has 51 states. Word has length 47 [2019-01-31 14:32:32,025 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-01-31 14:32:32,025 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 51 states. [2019-01-31 14:32:32,134 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 14:32:32,134 INFO L459 AbstractCegarLoop]: Interpolant automaton has 51 states [2019-01-31 14:32:32,135 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 51 interpolants. [2019-01-31 14:32:32,135 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=758, Invalid=4942, Unknown=0, NotChecked=0, Total=5700 [2019-01-31 14:32:32,136 INFO L87 Difference]: Start difference. First operand 48 states and 48 transitions. Second operand 51 states. [2019-01-31 14:32:36,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 14:32:36,053 INFO L93 Difference]: Finished difference Result 52 states and 52 transitions. [2019-01-31 14:32:36,053 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2019-01-31 14:32:36,053 INFO L78 Accepts]: Start accepts. Automaton has 51 states. Word has length 47 [2019-01-31 14:32:36,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-31 14:32:36,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2019-01-31 14:32:36,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 52 transitions. [2019-01-31 14:32:36,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2019-01-31 14:32:36,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 52 transitions. [2019-01-31 14:32:36,056 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 27 states and 52 transitions. [2019-01-31 14:32:36,109 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 14:32:36,110 INFO L225 Difference]: With dead ends: 52 [2019-01-31 14:32:36,110 INFO L226 Difference]: Without dead ends: 51 [2019-01-31 14:32:36,111 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 42 SyntacticMatches, 1 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1296 ImplicationChecksByTransitivity, 5.0s TimeCoverageRelationStatistics Valid=758, Invalid=4942, Unknown=0, NotChecked=0, Total=5700 [2019-01-31 14:32:36,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2019-01-31 14:32:36,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 50. [2019-01-31 14:32:36,163 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-01-31 14:32:36,163 INFO L82 GeneralOperation]: Start isEquivalent. First operand 51 states. Second operand 50 states. [2019-01-31 14:32:36,163 INFO L74 IsIncluded]: Start isIncluded. First operand 51 states. Second operand 50 states. [2019-01-31 14:32:36,163 INFO L87 Difference]: Start difference. First operand 51 states. Second operand 50 states. [2019-01-31 14:32:36,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 14:32:36,164 INFO L93 Difference]: Finished difference Result 51 states and 51 transitions. [2019-01-31 14:32:36,164 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 51 transitions. [2019-01-31 14:32:36,165 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-31 14:32:36,165 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-01-31 14:32:36,165 INFO L74 IsIncluded]: Start isIncluded. First operand 50 states. Second operand 51 states. [2019-01-31 14:32:36,165 INFO L87 Difference]: Start difference. First operand 50 states. Second operand 51 states. [2019-01-31 14:32:36,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 14:32:36,166 INFO L93 Difference]: Finished difference Result 51 states and 51 transitions. [2019-01-31 14:32:36,166 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 51 transitions. [2019-01-31 14:32:36,166 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-31 14:32:36,166 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-01-31 14:32:36,166 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-01-31 14:32:36,166 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-01-31 14:32:36,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2019-01-31 14:32:36,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 50 transitions. [2019-01-31 14:32:36,167 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 50 transitions. Word has length 47 [2019-01-31 14:32:36,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-31 14:32:36,167 INFO L480 AbstractCegarLoop]: Abstraction has 50 states and 50 transitions. [2019-01-31 14:32:36,167 INFO L481 AbstractCegarLoop]: Interpolant automaton has 51 states. [2019-01-31 14:32:36,167 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 50 transitions. [2019-01-31 14:32:36,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2019-01-31 14:32:36,168 INFO L394 BasicCegarLoop]: Found error trace [2019-01-31 14:32:36,168 INFO L402 BasicCegarLoop]: trace histogram [24, 23, 1, 1] [2019-01-31 14:32:36,168 INFO L423 AbstractCegarLoop]: === Iteration 24 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-01-31 14:32:36,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-31 14:32:36,168 INFO L82 PathProgramCache]: Analyzing trace with hash -62633906, now seen corresponding path program 23 times [2019-01-31 14:32:36,168 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-01-31 14:32:36,169 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-31 14:32:36,169 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-31 14:32:36,169 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-31 14:32:36,169 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-01-31 14:32:36,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-31 14:32:37,266 INFO L273 TraceCheckUtils]: 0: Hoare triple {7633#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {7635#(and (or (<= 0 main_i) (< 23 main_n)) (or (<= main_n 23) (<= main_i 0)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:37,267 INFO L273 TraceCheckUtils]: 1: Hoare triple {7635#(and (or (<= 0 main_i) (< 23 main_n)) (or (<= main_n 23) (<= main_i 0)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {7636#(and (or (<= main_n 23) (<= main_i 4)) (= 23 (select main_a (* 4 main_n))) (or (< 23 main_n) (<= 4 main_i)))} is VALID [2019-01-31 14:32:37,267 INFO L273 TraceCheckUtils]: 2: Hoare triple {7636#(and (or (<= main_n 23) (<= main_i 4)) (= 23 (select main_a (* 4 main_n))) (or (< 23 main_n) (<= 4 main_i)))} assume i <= n * 4; {7636#(and (or (<= main_n 23) (<= main_i 4)) (= 23 (select main_a (* 4 main_n))) (or (< 23 main_n) (<= 4 main_i)))} is VALID [2019-01-31 14:32:37,268 INFO L273 TraceCheckUtils]: 3: Hoare triple {7636#(and (or (<= main_n 23) (<= main_i 4)) (= 23 (select main_a (* 4 main_n))) (or (< 23 main_n) (<= 4 main_i)))} assume a[i] != 23;i := i + 4; {7637#(and (or (<= 8 main_i) (< 23 main_n)) (or (<= main_i 8) (<= main_n 23)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:37,268 INFO L273 TraceCheckUtils]: 4: Hoare triple {7637#(and (or (<= 8 main_i) (< 23 main_n)) (or (<= main_i 8) (<= main_n 23)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {7637#(and (or (<= 8 main_i) (< 23 main_n)) (or (<= main_i 8) (<= main_n 23)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:37,269 INFO L273 TraceCheckUtils]: 5: Hoare triple {7637#(and (or (<= 8 main_i) (< 23 main_n)) (or (<= main_i 8) (<= main_n 23)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {7638#(and (or (<= main_n 23) (<= main_i 12)) (= 23 (select main_a (* 4 main_n))) (or (<= 12 main_i) (< 23 main_n)))} is VALID [2019-01-31 14:32:37,270 INFO L273 TraceCheckUtils]: 6: Hoare triple {7638#(and (or (<= main_n 23) (<= main_i 12)) (= 23 (select main_a (* 4 main_n))) (or (<= 12 main_i) (< 23 main_n)))} assume i <= n * 4; {7638#(and (or (<= main_n 23) (<= main_i 12)) (= 23 (select main_a (* 4 main_n))) (or (<= 12 main_i) (< 23 main_n)))} is VALID [2019-01-31 14:32:37,271 INFO L273 TraceCheckUtils]: 7: Hoare triple {7638#(and (or (<= main_n 23) (<= main_i 12)) (= 23 (select main_a (* 4 main_n))) (or (<= 12 main_i) (< 23 main_n)))} assume a[i] != 23;i := i + 4; {7639#(and (or (<= main_n 23) (<= main_i 16)) (or (<= 16 main_i) (< 23 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:37,272 INFO L273 TraceCheckUtils]: 8: Hoare triple {7639#(and (or (<= main_n 23) (<= main_i 16)) (or (<= 16 main_i) (< 23 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {7639#(and (or (<= main_n 23) (<= main_i 16)) (or (<= 16 main_i) (< 23 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:37,273 INFO L273 TraceCheckUtils]: 9: Hoare triple {7639#(and (or (<= main_n 23) (<= main_i 16)) (or (<= 16 main_i) (< 23 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {7640#(and (or (<= main_n 23) (<= main_i 20)) (or (<= 20 main_i) (< 23 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:37,274 INFO L273 TraceCheckUtils]: 10: Hoare triple {7640#(and (or (<= main_n 23) (<= main_i 20)) (or (<= 20 main_i) (< 23 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {7640#(and (or (<= main_n 23) (<= main_i 20)) (or (<= 20 main_i) (< 23 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:37,275 INFO L273 TraceCheckUtils]: 11: Hoare triple {7640#(and (or (<= main_n 23) (<= main_i 20)) (or (<= 20 main_i) (< 23 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {7641#(and (or (<= 24 main_i) (< 23 main_n)) (or (<= main_n 23) (<= main_i 24)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:37,276 INFO L273 TraceCheckUtils]: 12: Hoare triple {7641#(and (or (<= 24 main_i) (< 23 main_n)) (or (<= main_n 23) (<= main_i 24)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {7641#(and (or (<= 24 main_i) (< 23 main_n)) (or (<= main_n 23) (<= main_i 24)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:37,277 INFO L273 TraceCheckUtils]: 13: Hoare triple {7641#(and (or (<= 24 main_i) (< 23 main_n)) (or (<= main_n 23) (<= main_i 24)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {7642#(and (or (<= 28 main_i) (< 23 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 23) (<= main_i 28)))} is VALID [2019-01-31 14:32:37,278 INFO L273 TraceCheckUtils]: 14: Hoare triple {7642#(and (or (<= 28 main_i) (< 23 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 23) (<= main_i 28)))} assume i <= n * 4; {7642#(and (or (<= 28 main_i) (< 23 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 23) (<= main_i 28)))} is VALID [2019-01-31 14:32:37,279 INFO L273 TraceCheckUtils]: 15: Hoare triple {7642#(and (or (<= 28 main_i) (< 23 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 23) (<= main_i 28)))} assume a[i] != 23;i := i + 4; {7643#(and (or (<= 32 main_i) (< 23 main_n)) (or (<= main_i 32) (<= main_n 23)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:37,279 INFO L273 TraceCheckUtils]: 16: Hoare triple {7643#(and (or (<= 32 main_i) (< 23 main_n)) (or (<= main_i 32) (<= main_n 23)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {7643#(and (or (<= 32 main_i) (< 23 main_n)) (or (<= main_i 32) (<= main_n 23)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:37,280 INFO L273 TraceCheckUtils]: 17: Hoare triple {7643#(and (or (<= 32 main_i) (< 23 main_n)) (or (<= main_i 32) (<= main_n 23)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {7644#(and (or (<= main_i 36) (<= main_n 23)) (or (< 23 main_n) (<= 36 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:37,281 INFO L273 TraceCheckUtils]: 18: Hoare triple {7644#(and (or (<= main_i 36) (<= main_n 23)) (or (< 23 main_n) (<= 36 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {7644#(and (or (<= main_i 36) (<= main_n 23)) (or (< 23 main_n) (<= 36 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:37,282 INFO L273 TraceCheckUtils]: 19: Hoare triple {7644#(and (or (<= main_i 36) (<= main_n 23)) (or (< 23 main_n) (<= 36 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {7645#(and (or (<= main_i 40) (<= main_n 23)) (= 23 (select main_a (* 4 main_n))) (or (<= 40 main_i) (< 23 main_n)))} is VALID [2019-01-31 14:32:37,283 INFO L273 TraceCheckUtils]: 20: Hoare triple {7645#(and (or (<= main_i 40) (<= main_n 23)) (= 23 (select main_a (* 4 main_n))) (or (<= 40 main_i) (< 23 main_n)))} assume i <= n * 4; {7645#(and (or (<= main_i 40) (<= main_n 23)) (= 23 (select main_a (* 4 main_n))) (or (<= 40 main_i) (< 23 main_n)))} is VALID [2019-01-31 14:32:37,284 INFO L273 TraceCheckUtils]: 21: Hoare triple {7645#(and (or (<= main_i 40) (<= main_n 23)) (= 23 (select main_a (* 4 main_n))) (or (<= 40 main_i) (< 23 main_n)))} assume a[i] != 23;i := i + 4; {7646#(and (or (<= main_n 23) (<= main_i 44)) (or (<= 44 main_i) (< 23 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:37,285 INFO L273 TraceCheckUtils]: 22: Hoare triple {7646#(and (or (<= main_n 23) (<= main_i 44)) (or (<= 44 main_i) (< 23 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {7646#(and (or (<= main_n 23) (<= main_i 44)) (or (<= 44 main_i) (< 23 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:37,286 INFO L273 TraceCheckUtils]: 23: Hoare triple {7646#(and (or (<= main_n 23) (<= main_i 44)) (or (<= 44 main_i) (< 23 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {7647#(and (or (<= 48 main_i) (< 23 main_n)) (or (<= main_n 23) (<= main_i 48)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:37,287 INFO L273 TraceCheckUtils]: 24: Hoare triple {7647#(and (or (<= 48 main_i) (< 23 main_n)) (or (<= main_n 23) (<= main_i 48)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {7647#(and (or (<= 48 main_i) (< 23 main_n)) (or (<= main_n 23) (<= main_i 48)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:37,288 INFO L273 TraceCheckUtils]: 25: Hoare triple {7647#(and (or (<= 48 main_i) (< 23 main_n)) (or (<= main_n 23) (<= main_i 48)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {7648#(and (or (<= 52 main_i) (< 23 main_n)) (or (<= main_i 52) (<= main_n 23)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:37,288 INFO L273 TraceCheckUtils]: 26: Hoare triple {7648#(and (or (<= 52 main_i) (< 23 main_n)) (or (<= main_i 52) (<= main_n 23)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {7648#(and (or (<= 52 main_i) (< 23 main_n)) (or (<= main_i 52) (<= main_n 23)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:37,290 INFO L273 TraceCheckUtils]: 27: Hoare triple {7648#(and (or (<= 52 main_i) (< 23 main_n)) (or (<= main_i 52) (<= main_n 23)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {7649#(and (or (<= 56 main_i) (< 23 main_n)) (or (<= main_n 23) (<= main_i 56)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:37,290 INFO L273 TraceCheckUtils]: 28: Hoare triple {7649#(and (or (<= 56 main_i) (< 23 main_n)) (or (<= main_n 23) (<= main_i 56)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {7649#(and (or (<= 56 main_i) (< 23 main_n)) (or (<= main_n 23) (<= main_i 56)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:37,291 INFO L273 TraceCheckUtils]: 29: Hoare triple {7649#(and (or (<= 56 main_i) (< 23 main_n)) (or (<= main_n 23) (<= main_i 56)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {7650#(and (or (<= 60 main_i) (< 23 main_n)) (or (<= main_n 23) (<= main_i 60)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:37,292 INFO L273 TraceCheckUtils]: 30: Hoare triple {7650#(and (or (<= 60 main_i) (< 23 main_n)) (or (<= main_n 23) (<= main_i 60)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {7650#(and (or (<= 60 main_i) (< 23 main_n)) (or (<= main_n 23) (<= main_i 60)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:37,293 INFO L273 TraceCheckUtils]: 31: Hoare triple {7650#(and (or (<= 60 main_i) (< 23 main_n)) (or (<= main_n 23) (<= main_i 60)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {7651#(and (or (<= main_i 64) (<= main_n 23)) (= 23 (select main_a (* 4 main_n))) (or (<= 64 main_i) (< 23 main_n)))} is VALID [2019-01-31 14:32:37,294 INFO L273 TraceCheckUtils]: 32: Hoare triple {7651#(and (or (<= main_i 64) (<= main_n 23)) (= 23 (select main_a (* 4 main_n))) (or (<= 64 main_i) (< 23 main_n)))} assume i <= n * 4; {7651#(and (or (<= main_i 64) (<= main_n 23)) (= 23 (select main_a (* 4 main_n))) (or (<= 64 main_i) (< 23 main_n)))} is VALID [2019-01-31 14:32:37,295 INFO L273 TraceCheckUtils]: 33: Hoare triple {7651#(and (or (<= main_i 64) (<= main_n 23)) (= 23 (select main_a (* 4 main_n))) (or (<= 64 main_i) (< 23 main_n)))} assume a[i] != 23;i := i + 4; {7652#(and (or (<= 68 main_i) (< 23 main_n)) (or (<= main_n 23) (<= main_i 68)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:37,296 INFO L273 TraceCheckUtils]: 34: Hoare triple {7652#(and (or (<= 68 main_i) (< 23 main_n)) (or (<= main_n 23) (<= main_i 68)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {7652#(and (or (<= 68 main_i) (< 23 main_n)) (or (<= main_n 23) (<= main_i 68)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:37,297 INFO L273 TraceCheckUtils]: 35: Hoare triple {7652#(and (or (<= 68 main_i) (< 23 main_n)) (or (<= main_n 23) (<= main_i 68)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {7653#(and (or (<= 72 main_i) (< 23 main_n)) (or (<= main_n 23) (<= main_i 72)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:37,297 INFO L273 TraceCheckUtils]: 36: Hoare triple {7653#(and (or (<= 72 main_i) (< 23 main_n)) (or (<= main_n 23) (<= main_i 72)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {7653#(and (or (<= 72 main_i) (< 23 main_n)) (or (<= main_n 23) (<= main_i 72)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:37,298 INFO L273 TraceCheckUtils]: 37: Hoare triple {7653#(and (or (<= 72 main_i) (< 23 main_n)) (or (<= main_n 23) (<= main_i 72)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {7654#(and (or (<= 76 main_i) (< 23 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 76) (<= main_n 23)))} is VALID [2019-01-31 14:32:37,299 INFO L273 TraceCheckUtils]: 38: Hoare triple {7654#(and (or (<= 76 main_i) (< 23 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 76) (<= main_n 23)))} assume i <= n * 4; {7654#(and (or (<= 76 main_i) (< 23 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 76) (<= main_n 23)))} is VALID [2019-01-31 14:32:37,300 INFO L273 TraceCheckUtils]: 39: Hoare triple {7654#(and (or (<= 76 main_i) (< 23 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 76) (<= main_n 23)))} assume a[i] != 23;i := i + 4; {7655#(and (or (<= main_n 23) (<= main_i 80)) (or (<= 80 main_i) (< 23 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:37,301 INFO L273 TraceCheckUtils]: 40: Hoare triple {7655#(and (or (<= main_n 23) (<= main_i 80)) (or (<= 80 main_i) (< 23 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {7655#(and (or (<= main_n 23) (<= main_i 80)) (or (<= 80 main_i) (< 23 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:37,302 INFO L273 TraceCheckUtils]: 41: Hoare triple {7655#(and (or (<= main_n 23) (<= main_i 80)) (or (<= 80 main_i) (< 23 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {7656#(and (or (< 23 main_n) (<= 84 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 84) (<= main_n 23)))} is VALID [2019-01-31 14:32:37,303 INFO L273 TraceCheckUtils]: 42: Hoare triple {7656#(and (or (< 23 main_n) (<= 84 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 84) (<= main_n 23)))} assume i <= n * 4; {7656#(and (or (< 23 main_n) (<= 84 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 84) (<= main_n 23)))} is VALID [2019-01-31 14:32:37,304 INFO L273 TraceCheckUtils]: 43: Hoare triple {7656#(and (or (< 23 main_n) (<= 84 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 84) (<= main_n 23)))} assume a[i] != 23;i := i + 4; {7657#(and (or (<= 88 main_i) (< 23 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 88) (<= main_n 23)))} is VALID [2019-01-31 14:32:37,305 INFO L273 TraceCheckUtils]: 44: Hoare triple {7657#(and (or (<= 88 main_i) (< 23 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 88) (<= main_n 23)))} assume i <= n * 4; {7657#(and (or (<= 88 main_i) (< 23 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 88) (<= main_n 23)))} is VALID [2019-01-31 14:32:37,306 INFO L273 TraceCheckUtils]: 45: Hoare triple {7657#(and (or (<= 88 main_i) (< 23 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 88) (<= main_n 23)))} assume a[i] != 23;i := i + 4; {7658#(and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (or (= (* 4 main_n) main_i) (and (or (<= (* 4 main_n) main_i) (< 23 main_n)) (or (<= main_i 92) (<= main_n 23)))))} is VALID [2019-01-31 14:32:37,307 INFO L273 TraceCheckUtils]: 46: Hoare triple {7658#(and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (or (= (* 4 main_n) main_i) (and (or (<= (* 4 main_n) main_i) (< 23 main_n)) (or (<= main_i 92) (<= main_n 23)))))} assume i <= n * 4; {7659#(and (or (= (* 4 main_n) main_i) (and (<= main_i 92) (< 23 main_n))) (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))))} is VALID [2019-01-31 14:32:37,308 INFO L273 TraceCheckUtils]: 47: Hoare triple {7659#(and (or (= (* 4 main_n) main_i) (and (<= main_i 92) (< 23 main_n))) (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))))} assume a[i] != 23;i := i + 4; {7660#(and (<= main_i 96) (< 23 main_n))} is VALID [2019-01-31 14:32:37,309 INFO L273 TraceCheckUtils]: 48: Hoare triple {7660#(and (<= main_i 96) (< 23 main_n))} assume !(i <= n * 4); {7634#false} is VALID [2019-01-31 14:32:37,320 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 14:32:37,321 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-31 14:32:37,321 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-01-31 14:32:37,321 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-01-31 14:32:37,321 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-01-31 14:32:37,321 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-31 14:32:37,321 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 14:32:37,330 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2019-01-31 14:32:37,330 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST2 (IT: FPandBP) [2019-01-31 14:32:37,358 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 24 check-sat command(s) [2019-01-31 14:32:37,358 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-01-31 14:32:37,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-31 14:32:37,367 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-31 14:32:37,382 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 14:32:37,383 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-01-31 14:32:37,387 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-31 14:32:37,388 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2019-01-31 14:32:37,390 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-01-31 14:32:37,390 WARN L398 uantifierElimination]: Input elimination task: ∃ [v_main_a_27]. (and (= (store v_main_a_27 (* 4 main_n) 23) main_a) (= main_i 0)) [2019-01-31 14:32:37,390 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2019-01-31 14:32:38,779 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2019-01-31 14:32:38,781 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-01-31 14:32:38,787 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-31 14:32:38,788 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2019-01-31 14:32:38,790 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-01-31 14:32:38,791 WARN L398 uantifierElimination]: Input elimination task: ∃ [main_a]. (let ((.cse0 (* 4 main_n))) (and (<= main_i 96) (not (= 23 (select main_a 92))) (<= 92 .cse0) (= 23 (select main_a .cse0)))) [2019-01-31 14:32:38,791 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (let ((.cse0 (* 4 main_n))) (and (<= main_i 96) (not (= 92 .cse0)) (<= 92 .cse0))) [2019-01-31 14:32:38,823 INFO L273 TraceCheckUtils]: 0: Hoare triple {7633#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {7664#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:38,823 INFO L273 TraceCheckUtils]: 1: Hoare triple {7664#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {7668#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2019-01-31 14:32:38,824 INFO L273 TraceCheckUtils]: 2: Hoare triple {7668#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume i <= n * 4; {7668#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2019-01-31 14:32:38,824 INFO L273 TraceCheckUtils]: 3: Hoare triple {7668#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume a[i] != 23;i := i + 4; {7675#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:38,825 INFO L273 TraceCheckUtils]: 4: Hoare triple {7675#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {7675#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:38,826 INFO L273 TraceCheckUtils]: 5: Hoare triple {7675#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {7682#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2019-01-31 14:32:38,826 INFO L273 TraceCheckUtils]: 6: Hoare triple {7682#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume i <= n * 4; {7682#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2019-01-31 14:32:38,827 INFO L273 TraceCheckUtils]: 7: Hoare triple {7682#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume a[i] != 23;i := i + 4; {7689#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:38,828 INFO L273 TraceCheckUtils]: 8: Hoare triple {7689#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {7689#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:38,829 INFO L273 TraceCheckUtils]: 9: Hoare triple {7689#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {7696#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:38,829 INFO L273 TraceCheckUtils]: 10: Hoare triple {7696#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {7696#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:38,830 INFO L273 TraceCheckUtils]: 11: Hoare triple {7696#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {7703#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:38,831 INFO L273 TraceCheckUtils]: 12: Hoare triple {7703#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {7703#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:38,831 INFO L273 TraceCheckUtils]: 13: Hoare triple {7703#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {7710#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:38,832 INFO L273 TraceCheckUtils]: 14: Hoare triple {7710#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {7710#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:38,833 INFO L273 TraceCheckUtils]: 15: Hoare triple {7710#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {7717#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:38,833 INFO L273 TraceCheckUtils]: 16: Hoare triple {7717#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {7717#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:38,834 INFO L273 TraceCheckUtils]: 17: Hoare triple {7717#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {7724#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:38,835 INFO L273 TraceCheckUtils]: 18: Hoare triple {7724#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {7724#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:38,836 INFO L273 TraceCheckUtils]: 19: Hoare triple {7724#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {7731#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:38,836 INFO L273 TraceCheckUtils]: 20: Hoare triple {7731#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {7731#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:38,837 INFO L273 TraceCheckUtils]: 21: Hoare triple {7731#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {7738#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:38,838 INFO L273 TraceCheckUtils]: 22: Hoare triple {7738#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {7738#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:38,838 INFO L273 TraceCheckUtils]: 23: Hoare triple {7738#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {7745#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:38,839 INFO L273 TraceCheckUtils]: 24: Hoare triple {7745#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {7745#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:38,840 INFO L273 TraceCheckUtils]: 25: Hoare triple {7745#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {7752#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:38,841 INFO L273 TraceCheckUtils]: 26: Hoare triple {7752#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {7752#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:38,841 INFO L273 TraceCheckUtils]: 27: Hoare triple {7752#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {7759#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:38,842 INFO L273 TraceCheckUtils]: 28: Hoare triple {7759#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {7759#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:38,843 INFO L273 TraceCheckUtils]: 29: Hoare triple {7759#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {7766#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:38,844 INFO L273 TraceCheckUtils]: 30: Hoare triple {7766#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {7766#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:38,844 INFO L273 TraceCheckUtils]: 31: Hoare triple {7766#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {7773#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:38,845 INFO L273 TraceCheckUtils]: 32: Hoare triple {7773#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {7773#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:38,846 INFO L273 TraceCheckUtils]: 33: Hoare triple {7773#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {7780#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:38,846 INFO L273 TraceCheckUtils]: 34: Hoare triple {7780#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {7780#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:38,847 INFO L273 TraceCheckUtils]: 35: Hoare triple {7780#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {7787#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:38,848 INFO L273 TraceCheckUtils]: 36: Hoare triple {7787#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {7787#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:38,849 INFO L273 TraceCheckUtils]: 37: Hoare triple {7787#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {7794#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:38,849 INFO L273 TraceCheckUtils]: 38: Hoare triple {7794#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {7794#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:38,850 INFO L273 TraceCheckUtils]: 39: Hoare triple {7794#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {7801#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} is VALID [2019-01-31 14:32:38,851 INFO L273 TraceCheckUtils]: 40: Hoare triple {7801#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} assume i <= n * 4; {7801#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} is VALID [2019-01-31 14:32:38,852 INFO L273 TraceCheckUtils]: 41: Hoare triple {7801#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} assume a[i] != 23;i := i + 4; {7808#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:38,852 INFO L273 TraceCheckUtils]: 42: Hoare triple {7808#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {7808#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:38,853 INFO L273 TraceCheckUtils]: 43: Hoare triple {7808#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {7815#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:38,854 INFO L273 TraceCheckUtils]: 44: Hoare triple {7815#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {7815#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:38,855 INFO L273 TraceCheckUtils]: 45: Hoare triple {7815#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {7822#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:38,855 INFO L273 TraceCheckUtils]: 46: Hoare triple {7822#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {7826#(and (= main_i 92) (<= main_i (* 4 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:38,856 INFO L273 TraceCheckUtils]: 47: Hoare triple {7826#(and (= main_i 92) (<= main_i (* 4 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {7660#(and (<= main_i 96) (< 23 main_n))} is VALID [2019-01-31 14:32:38,857 INFO L273 TraceCheckUtils]: 48: Hoare triple {7660#(and (<= main_i 96) (< 23 main_n))} assume !(i <= n * 4); {7634#false} is VALID [2019-01-31 14:32:38,864 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 14:32:38,864 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2019-01-31 14:32:40,800 INFO L273 TraceCheckUtils]: 48: Hoare triple {7833#(<= main_i (* 4 main_n))} assume !(i <= n * 4); {7634#false} is VALID [2019-01-31 14:32:40,801 INFO L273 TraceCheckUtils]: 47: Hoare triple {7837#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} assume a[i] != 23;i := i + 4; {7833#(<= main_i (* 4 main_n))} is VALID [2019-01-31 14:32:40,802 INFO L273 TraceCheckUtils]: 46: Hoare triple {7841#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} assume i <= n * 4; {7837#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} is VALID [2019-01-31 14:32:40,803 INFO L273 TraceCheckUtils]: 45: Hoare triple {7845#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume a[i] != 23;i := i + 4; {7841#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} is VALID [2019-01-31 14:32:40,803 INFO L273 TraceCheckUtils]: 44: Hoare triple {7845#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume i <= n * 4; {7845#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2019-01-31 14:32:40,804 INFO L273 TraceCheckUtils]: 43: Hoare triple {7852#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume a[i] != 23;i := i + 4; {7845#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2019-01-31 14:32:40,805 INFO L273 TraceCheckUtils]: 42: Hoare triple {7852#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume i <= n * 4; {7852#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2019-01-31 14:32:40,806 INFO L273 TraceCheckUtils]: 41: Hoare triple {7859#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume a[i] != 23;i := i + 4; {7852#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2019-01-31 14:32:40,807 INFO L273 TraceCheckUtils]: 40: Hoare triple {7859#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume i <= n * 4; {7859#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2019-01-31 14:32:40,808 INFO L273 TraceCheckUtils]: 39: Hoare triple {7866#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume a[i] != 23;i := i + 4; {7859#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2019-01-31 14:32:40,808 INFO L273 TraceCheckUtils]: 38: Hoare triple {7866#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume i <= n * 4; {7866#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2019-01-31 14:32:40,809 INFO L273 TraceCheckUtils]: 37: Hoare triple {7873#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {7866#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2019-01-31 14:32:40,810 INFO L273 TraceCheckUtils]: 36: Hoare triple {7873#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume i <= n * 4; {7873#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2019-01-31 14:32:40,811 INFO L273 TraceCheckUtils]: 35: Hoare triple {7880#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume a[i] != 23;i := i + 4; {7873#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2019-01-31 14:32:40,812 INFO L273 TraceCheckUtils]: 34: Hoare triple {7880#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume i <= n * 4; {7880#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2019-01-31 14:32:40,813 INFO L273 TraceCheckUtils]: 33: Hoare triple {7887#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {7880#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2019-01-31 14:32:40,813 INFO L273 TraceCheckUtils]: 32: Hoare triple {7887#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume i <= n * 4; {7887#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2019-01-31 14:32:40,814 INFO L273 TraceCheckUtils]: 31: Hoare triple {7894#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {7887#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2019-01-31 14:32:40,815 INFO L273 TraceCheckUtils]: 30: Hoare triple {7894#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume i <= n * 4; {7894#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2019-01-31 14:32:40,816 INFO L273 TraceCheckUtils]: 29: Hoare triple {7901#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {7894#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2019-01-31 14:32:40,817 INFO L273 TraceCheckUtils]: 28: Hoare triple {7901#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume i <= n * 4; {7901#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2019-01-31 14:32:40,818 INFO L273 TraceCheckUtils]: 27: Hoare triple {7908#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} assume a[i] != 23;i := i + 4; {7901#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2019-01-31 14:32:40,818 INFO L273 TraceCheckUtils]: 26: Hoare triple {7908#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} assume i <= n * 4; {7908#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} is VALID [2019-01-31 14:32:40,819 INFO L273 TraceCheckUtils]: 25: Hoare triple {7915#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {7908#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} is VALID [2019-01-31 14:32:40,820 INFO L273 TraceCheckUtils]: 24: Hoare triple {7915#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} assume i <= n * 4; {7915#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} is VALID [2019-01-31 14:32:40,821 INFO L273 TraceCheckUtils]: 23: Hoare triple {7922#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {7915#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} is VALID [2019-01-31 14:32:40,821 INFO L273 TraceCheckUtils]: 22: Hoare triple {7922#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} assume i <= n * 4; {7922#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} is VALID [2019-01-31 14:32:40,823 INFO L273 TraceCheckUtils]: 21: Hoare triple {7929#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} assume a[i] != 23;i := i + 4; {7922#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} is VALID [2019-01-31 14:32:40,823 INFO L273 TraceCheckUtils]: 20: Hoare triple {7929#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} assume i <= n * 4; {7929#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} is VALID [2019-01-31 14:32:40,824 INFO L273 TraceCheckUtils]: 19: Hoare triple {7936#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {7929#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} is VALID [2019-01-31 14:32:40,825 INFO L273 TraceCheckUtils]: 18: Hoare triple {7936#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} assume i <= n * 4; {7936#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} is VALID [2019-01-31 14:32:40,826 INFO L273 TraceCheckUtils]: 17: Hoare triple {7943#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} assume a[i] != 23;i := i + 4; {7936#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} is VALID [2019-01-31 14:32:40,826 INFO L273 TraceCheckUtils]: 16: Hoare triple {7943#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} assume i <= n * 4; {7943#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} is VALID [2019-01-31 14:32:40,828 INFO L273 TraceCheckUtils]: 15: Hoare triple {7950#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} assume a[i] != 23;i := i + 4; {7943#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} is VALID [2019-01-31 14:32:40,828 INFO L273 TraceCheckUtils]: 14: Hoare triple {7950#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} assume i <= n * 4; {7950#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} is VALID [2019-01-31 14:32:40,829 INFO L273 TraceCheckUtils]: 13: Hoare triple {7957#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} assume a[i] != 23;i := i + 4; {7950#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} is VALID [2019-01-31 14:32:40,830 INFO L273 TraceCheckUtils]: 12: Hoare triple {7957#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} assume i <= n * 4; {7957#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} is VALID [2019-01-31 14:32:40,831 INFO L273 TraceCheckUtils]: 11: Hoare triple {7964#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} assume a[i] != 23;i := i + 4; {7957#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} is VALID [2019-01-31 14:32:40,832 INFO L273 TraceCheckUtils]: 10: Hoare triple {7964#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} assume i <= n * 4; {7964#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} is VALID [2019-01-31 14:32:40,833 INFO L273 TraceCheckUtils]: 9: Hoare triple {7971#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} assume a[i] != 23;i := i + 4; {7964#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} is VALID [2019-01-31 14:32:40,833 INFO L273 TraceCheckUtils]: 8: Hoare triple {7971#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} assume i <= n * 4; {7971#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} is VALID [2019-01-31 14:32:40,834 INFO L273 TraceCheckUtils]: 7: Hoare triple {7978#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} assume a[i] != 23;i := i + 4; {7971#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} is VALID [2019-01-31 14:32:40,835 INFO L273 TraceCheckUtils]: 6: Hoare triple {7978#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} assume i <= n * 4; {7978#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} is VALID [2019-01-31 14:32:40,836 INFO L273 TraceCheckUtils]: 5: Hoare triple {7985#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {7978#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} is VALID [2019-01-31 14:32:40,837 INFO L273 TraceCheckUtils]: 4: Hoare triple {7985#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} assume i <= n * 4; {7985#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} is VALID [2019-01-31 14:32:40,838 INFO L273 TraceCheckUtils]: 3: Hoare triple {7992#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {7985#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} is VALID [2019-01-31 14:32:40,838 INFO L273 TraceCheckUtils]: 2: Hoare triple {7992#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} assume i <= n * 4; {7992#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} is VALID [2019-01-31 14:32:40,840 INFO L273 TraceCheckUtils]: 1: Hoare triple {7999#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {7992#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} is VALID [2019-01-31 14:32:40,841 INFO L273 TraceCheckUtils]: 0: Hoare triple {7633#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {7999#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} is VALID [2019-01-31 14:32:40,851 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 14:32:40,870 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-01-31 14:32:40,870 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 26, 26] total 77 [2019-01-31 14:32:40,870 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-01-31 14:32:40,871 INFO L78 Accepts]: Start accepts. Automaton has 53 states. Word has length 49 [2019-01-31 14:32:40,871 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-01-31 14:32:40,871 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 53 states. [2019-01-31 14:32:40,984 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 97 edges. 97 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-01-31 14:32:40,985 INFO L459 AbstractCegarLoop]: Interpolant automaton has 53 states [2019-01-31 14:32:40,985 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 53 interpolants. [2019-01-31 14:32:40,986 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=814, Invalid=5348, Unknown=0, NotChecked=0, Total=6162 [2019-01-31 14:32:40,986 INFO L87 Difference]: Start difference. First operand 50 states and 50 transitions. Second operand 53 states. [2019-01-31 14:32:45,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 14:32:45,538 INFO L93 Difference]: Finished difference Result 54 states and 54 transitions. [2019-01-31 14:32:45,538 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2019-01-31 14:32:45,538 INFO L78 Accepts]: Start accepts. Automaton has 53 states. Word has length 49 [2019-01-31 14:32:45,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-31 14:32:45,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2019-01-31 14:32:45,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 54 transitions. [2019-01-31 14:32:45,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2019-01-31 14:32:45,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 54 transitions. [2019-01-31 14:32:45,540 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 28 states and 54 transitions. [2019-01-31 14:32:45,599 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 14:32:45,600 INFO L225 Difference]: With dead ends: 54 [2019-01-31 14:32:45,600 INFO L226 Difference]: Without dead ends: 53 [2019-01-31 14:32:45,602 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 44 SyntacticMatches, 1 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1400 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=814, Invalid=5348, Unknown=0, NotChecked=0, Total=6162 [2019-01-31 14:32:45,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2019-01-31 14:32:45,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 52. [2019-01-31 14:32:45,690 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-01-31 14:32:45,690 INFO L82 GeneralOperation]: Start isEquivalent. First operand 53 states. Second operand 52 states. [2019-01-31 14:32:45,690 INFO L74 IsIncluded]: Start isIncluded. First operand 53 states. Second operand 52 states. [2019-01-31 14:32:45,691 INFO L87 Difference]: Start difference. First operand 53 states. Second operand 52 states. [2019-01-31 14:32:45,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 14:32:45,692 INFO L93 Difference]: Finished difference Result 53 states and 53 transitions. [2019-01-31 14:32:45,692 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 53 transitions. [2019-01-31 14:32:45,692 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-31 14:32:45,692 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-01-31 14:32:45,692 INFO L74 IsIncluded]: Start isIncluded. First operand 52 states. Second operand 53 states. [2019-01-31 14:32:45,693 INFO L87 Difference]: Start difference. First operand 52 states. Second operand 53 states. [2019-01-31 14:32:45,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 14:32:45,693 INFO L93 Difference]: Finished difference Result 53 states and 53 transitions. [2019-01-31 14:32:45,693 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 53 transitions. [2019-01-31 14:32:45,693 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-31 14:32:45,694 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-01-31 14:32:45,694 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-01-31 14:32:45,694 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-01-31 14:32:45,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2019-01-31 14:32:45,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 52 transitions. [2019-01-31 14:32:45,694 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 52 transitions. Word has length 49 [2019-01-31 14:32:45,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-31 14:32:45,695 INFO L480 AbstractCegarLoop]: Abstraction has 52 states and 52 transitions. [2019-01-31 14:32:45,695 INFO L481 AbstractCegarLoop]: Interpolant automaton has 53 states. [2019-01-31 14:32:45,695 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 52 transitions. [2019-01-31 14:32:45,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2019-01-31 14:32:45,695 INFO L394 BasicCegarLoop]: Found error trace [2019-01-31 14:32:45,695 INFO L402 BasicCegarLoop]: trace histogram [25, 24, 1, 1] [2019-01-31 14:32:45,696 INFO L423 AbstractCegarLoop]: === Iteration 25 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-01-31 14:32:45,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-31 14:32:45,696 INFO L82 PathProgramCache]: Analyzing trace with hash -61640432, now seen corresponding path program 24 times [2019-01-31 14:32:45,696 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-01-31 14:32:45,697 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-31 14:32:45,697 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-01-31 14:32:45,697 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-31 14:32:45,697 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-01-31 14:32:45,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-31 14:32:46,066 WARN L181 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 18 [2019-01-31 14:32:47,302 INFO L273 TraceCheckUtils]: 0: Hoare triple {8265#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {8267#(and (or (<= main_i 0) (<= main_n 24)) (or (and (<= 0 main_i) (= 23 (select main_a (* 4 main_n)))) (< 24 main_n)))} is VALID [2019-01-31 14:32:47,304 INFO L273 TraceCheckUtils]: 1: Hoare triple {8267#(and (or (<= main_i 0) (<= main_n 24)) (or (and (<= 0 main_i) (= 23 (select main_a (* 4 main_n)))) (< 24 main_n)))} assume a[i] != 23;i := i + 4; {8268#(and (or (< 24 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i))) (or (<= main_i 4) (<= main_n 24)))} is VALID [2019-01-31 14:32:47,304 INFO L273 TraceCheckUtils]: 2: Hoare triple {8268#(and (or (< 24 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i))) (or (<= main_i 4) (<= main_n 24)))} assume i <= n * 4; {8268#(and (or (< 24 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i))) (or (<= main_i 4) (<= main_n 24)))} is VALID [2019-01-31 14:32:47,305 INFO L273 TraceCheckUtils]: 3: Hoare triple {8268#(and (or (< 24 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i))) (or (<= main_i 4) (<= main_n 24)))} assume a[i] != 23;i := i + 4; {8269#(and (or (< 24 main_n) (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 8) (<= main_n 24)))} is VALID [2019-01-31 14:32:47,306 INFO L273 TraceCheckUtils]: 4: Hoare triple {8269#(and (or (< 24 main_n) (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 8) (<= main_n 24)))} assume i <= n * 4; {8269#(and (or (< 24 main_n) (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 8) (<= main_n 24)))} is VALID [2019-01-31 14:32:47,307 INFO L273 TraceCheckUtils]: 5: Hoare triple {8269#(and (or (< 24 main_n) (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 8) (<= main_n 24)))} assume a[i] != 23;i := i + 4; {8270#(and (or (<= main_n 24) (<= main_i 12)) (or (< 24 main_n) (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:32:47,308 INFO L273 TraceCheckUtils]: 6: Hoare triple {8270#(and (or (<= main_n 24) (<= main_i 12)) (or (< 24 main_n) (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {8270#(and (or (<= main_n 24) (<= main_i 12)) (or (< 24 main_n) (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:32:47,309 INFO L273 TraceCheckUtils]: 7: Hoare triple {8270#(and (or (<= main_n 24) (<= main_i 12)) (or (< 24 main_n) (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {8271#(and (or (< 24 main_n) (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 16) (<= main_n 24)))} is VALID [2019-01-31 14:32:47,310 INFO L273 TraceCheckUtils]: 8: Hoare triple {8271#(and (or (< 24 main_n) (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 16) (<= main_n 24)))} assume i <= n * 4; {8271#(and (or (< 24 main_n) (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 16) (<= main_n 24)))} is VALID [2019-01-31 14:32:47,311 INFO L273 TraceCheckUtils]: 9: Hoare triple {8271#(and (or (< 24 main_n) (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 16) (<= main_n 24)))} assume a[i] != 23;i := i + 4; {8272#(and (or (<= main_i 20) (<= main_n 24)) (or (< 24 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:32:47,312 INFO L273 TraceCheckUtils]: 10: Hoare triple {8272#(and (or (<= main_i 20) (<= main_n 24)) (or (< 24 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {8272#(and (or (<= main_i 20) (<= main_n 24)) (or (< 24 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:32:47,313 INFO L273 TraceCheckUtils]: 11: Hoare triple {8272#(and (or (<= main_i 20) (<= main_n 24)) (or (< 24 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {8273#(and (or (<= main_i 24) (<= main_n 24)) (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 24 main_n)))} is VALID [2019-01-31 14:32:47,314 INFO L273 TraceCheckUtils]: 12: Hoare triple {8273#(and (or (<= main_i 24) (<= main_n 24)) (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 24 main_n)))} assume i <= n * 4; {8273#(and (or (<= main_i 24) (<= main_n 24)) (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 24 main_n)))} is VALID [2019-01-31 14:32:47,315 INFO L273 TraceCheckUtils]: 13: Hoare triple {8273#(and (or (<= main_i 24) (<= main_n 24)) (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 24 main_n)))} assume a[i] != 23;i := i + 4; {8274#(and (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 24 main_n)) (or (<= main_i 28) (<= main_n 24)))} is VALID [2019-01-31 14:32:47,315 INFO L273 TraceCheckUtils]: 14: Hoare triple {8274#(and (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 24 main_n)) (or (<= main_i 28) (<= main_n 24)))} assume i <= n * 4; {8274#(and (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 24 main_n)) (or (<= main_i 28) (<= main_n 24)))} is VALID [2019-01-31 14:32:47,316 INFO L273 TraceCheckUtils]: 15: Hoare triple {8274#(and (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 24 main_n)) (or (<= main_i 28) (<= main_n 24)))} assume a[i] != 23;i := i + 4; {8275#(and (or (<= main_i 32) (<= main_n 24)) (or (< 24 main_n) (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:32:47,317 INFO L273 TraceCheckUtils]: 16: Hoare triple {8275#(and (or (<= main_i 32) (<= main_n 24)) (or (< 24 main_n) (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {8275#(and (or (<= main_i 32) (<= main_n 24)) (or (< 24 main_n) (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:32:47,318 INFO L273 TraceCheckUtils]: 17: Hoare triple {8275#(and (or (<= main_i 32) (<= main_n 24)) (or (< 24 main_n) (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {8276#(and (or (<= main_i 36) (<= main_n 24)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i)) (< 24 main_n)))} is VALID [2019-01-31 14:32:47,319 INFO L273 TraceCheckUtils]: 18: Hoare triple {8276#(and (or (<= main_i 36) (<= main_n 24)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i)) (< 24 main_n)))} assume i <= n * 4; {8276#(and (or (<= main_i 36) (<= main_n 24)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i)) (< 24 main_n)))} is VALID [2019-01-31 14:32:47,320 INFO L273 TraceCheckUtils]: 19: Hoare triple {8276#(and (or (<= main_i 36) (<= main_n 24)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i)) (< 24 main_n)))} assume a[i] != 23;i := i + 4; {8277#(and (or (< 24 main_n) (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 40) (<= main_n 24)))} is VALID [2019-01-31 14:32:47,321 INFO L273 TraceCheckUtils]: 20: Hoare triple {8277#(and (or (< 24 main_n) (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 40) (<= main_n 24)))} assume i <= n * 4; {8277#(and (or (< 24 main_n) (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 40) (<= main_n 24)))} is VALID [2019-01-31 14:32:47,322 INFO L273 TraceCheckUtils]: 21: Hoare triple {8277#(and (or (< 24 main_n) (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 40) (<= main_n 24)))} assume a[i] != 23;i := i + 4; {8278#(and (or (<= main_n 24) (<= main_i 44)) (or (< 24 main_n) (and (<= 44 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:32:47,323 INFO L273 TraceCheckUtils]: 22: Hoare triple {8278#(and (or (<= main_n 24) (<= main_i 44)) (or (< 24 main_n) (and (<= 44 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {8278#(and (or (<= main_n 24) (<= main_i 44)) (or (< 24 main_n) (and (<= 44 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:32:47,324 INFO L273 TraceCheckUtils]: 23: Hoare triple {8278#(and (or (<= main_n 24) (<= main_i 44)) (or (< 24 main_n) (and (<= 44 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {8279#(and (or (<= main_i 48) (<= main_n 24)) (or (and (<= 48 main_i) (= 23 (select main_a (* 4 main_n)))) (< 24 main_n)))} is VALID [2019-01-31 14:32:47,324 INFO L273 TraceCheckUtils]: 24: Hoare triple {8279#(and (or (<= main_i 48) (<= main_n 24)) (or (and (<= 48 main_i) (= 23 (select main_a (* 4 main_n)))) (< 24 main_n)))} assume i <= n * 4; {8279#(and (or (<= main_i 48) (<= main_n 24)) (or (and (<= 48 main_i) (= 23 (select main_a (* 4 main_n)))) (< 24 main_n)))} is VALID [2019-01-31 14:32:47,326 INFO L273 TraceCheckUtils]: 25: Hoare triple {8279#(and (or (<= main_i 48) (<= main_n 24)) (or (and (<= 48 main_i) (= 23 (select main_a (* 4 main_n)))) (< 24 main_n)))} assume a[i] != 23;i := i + 4; {8280#(and (or (and (<= 52 main_i) (= 23 (select main_a (* 4 main_n)))) (< 24 main_n)) (or (<= main_i 52) (<= main_n 24)))} is VALID [2019-01-31 14:32:47,326 INFO L273 TraceCheckUtils]: 26: Hoare triple {8280#(and (or (and (<= 52 main_i) (= 23 (select main_a (* 4 main_n)))) (< 24 main_n)) (or (<= main_i 52) (<= main_n 24)))} assume i <= n * 4; {8280#(and (or (and (<= 52 main_i) (= 23 (select main_a (* 4 main_n)))) (< 24 main_n)) (or (<= main_i 52) (<= main_n 24)))} is VALID [2019-01-31 14:32:47,327 INFO L273 TraceCheckUtils]: 27: Hoare triple {8280#(and (or (and (<= 52 main_i) (= 23 (select main_a (* 4 main_n)))) (< 24 main_n)) (or (<= main_i 52) (<= main_n 24)))} assume a[i] != 23;i := i + 4; {8281#(and (or (< 24 main_n) (and (<= 56 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 56) (<= main_n 24)))} is VALID [2019-01-31 14:32:47,328 INFO L273 TraceCheckUtils]: 28: Hoare triple {8281#(and (or (< 24 main_n) (and (<= 56 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 56) (<= main_n 24)))} assume i <= n * 4; {8281#(and (or (< 24 main_n) (and (<= 56 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 56) (<= main_n 24)))} is VALID [2019-01-31 14:32:47,329 INFO L273 TraceCheckUtils]: 29: Hoare triple {8281#(and (or (< 24 main_n) (and (<= 56 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 56) (<= main_n 24)))} assume a[i] != 23;i := i + 4; {8282#(and (or (<= main_i 60) (<= main_n 24)) (or (< 24 main_n) (and (<= 60 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:32:47,330 INFO L273 TraceCheckUtils]: 30: Hoare triple {8282#(and (or (<= main_i 60) (<= main_n 24)) (or (< 24 main_n) (and (<= 60 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {8282#(and (or (<= main_i 60) (<= main_n 24)) (or (< 24 main_n) (and (<= 60 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:32:47,331 INFO L273 TraceCheckUtils]: 31: Hoare triple {8282#(and (or (<= main_i 60) (<= main_n 24)) (or (< 24 main_n) (and (<= 60 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {8283#(and (or (<= main_i 64) (<= main_n 24)) (or (< 24 main_n) (and (<= 64 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:32:47,332 INFO L273 TraceCheckUtils]: 32: Hoare triple {8283#(and (or (<= main_i 64) (<= main_n 24)) (or (< 24 main_n) (and (<= 64 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {8283#(and (or (<= main_i 64) (<= main_n 24)) (or (< 24 main_n) (and (<= 64 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:32:47,333 INFO L273 TraceCheckUtils]: 33: Hoare triple {8283#(and (or (<= main_i 64) (<= main_n 24)) (or (< 24 main_n) (and (<= 64 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {8284#(and (or (<= main_n 24) (<= main_i 68)) (or (and (<= 68 main_i) (= 23 (select main_a (* 4 main_n)))) (< 24 main_n)))} is VALID [2019-01-31 14:32:47,334 INFO L273 TraceCheckUtils]: 34: Hoare triple {8284#(and (or (<= main_n 24) (<= main_i 68)) (or (and (<= 68 main_i) (= 23 (select main_a (* 4 main_n)))) (< 24 main_n)))} assume i <= n * 4; {8284#(and (or (<= main_n 24) (<= main_i 68)) (or (and (<= 68 main_i) (= 23 (select main_a (* 4 main_n)))) (< 24 main_n)))} is VALID [2019-01-31 14:32:47,335 INFO L273 TraceCheckUtils]: 35: Hoare triple {8284#(and (or (<= main_n 24) (<= main_i 68)) (or (and (<= 68 main_i) (= 23 (select main_a (* 4 main_n)))) (< 24 main_n)))} assume a[i] != 23;i := i + 4; {8285#(and (or (<= main_i 72) (<= main_n 24)) (or (and (<= 72 main_i) (= 23 (select main_a (* 4 main_n)))) (< 24 main_n)))} is VALID [2019-01-31 14:32:47,335 INFO L273 TraceCheckUtils]: 36: Hoare triple {8285#(and (or (<= main_i 72) (<= main_n 24)) (or (and (<= 72 main_i) (= 23 (select main_a (* 4 main_n)))) (< 24 main_n)))} assume i <= n * 4; {8285#(and (or (<= main_i 72) (<= main_n 24)) (or (and (<= 72 main_i) (= 23 (select main_a (* 4 main_n)))) (< 24 main_n)))} is VALID [2019-01-31 14:32:47,336 INFO L273 TraceCheckUtils]: 37: Hoare triple {8285#(and (or (<= main_i 72) (<= main_n 24)) (or (and (<= 72 main_i) (= 23 (select main_a (* 4 main_n)))) (< 24 main_n)))} assume a[i] != 23;i := i + 4; {8286#(and (or (and (<= 76 main_i) (= 23 (select main_a (* 4 main_n)))) (< 24 main_n)) (or (<= main_i 76) (<= main_n 24)))} is VALID [2019-01-31 14:32:47,337 INFO L273 TraceCheckUtils]: 38: Hoare triple {8286#(and (or (and (<= 76 main_i) (= 23 (select main_a (* 4 main_n)))) (< 24 main_n)) (or (<= main_i 76) (<= main_n 24)))} assume i <= n * 4; {8286#(and (or (and (<= 76 main_i) (= 23 (select main_a (* 4 main_n)))) (< 24 main_n)) (or (<= main_i 76) (<= main_n 24)))} is VALID [2019-01-31 14:32:47,338 INFO L273 TraceCheckUtils]: 39: Hoare triple {8286#(and (or (and (<= 76 main_i) (= 23 (select main_a (* 4 main_n)))) (< 24 main_n)) (or (<= main_i 76) (<= main_n 24)))} assume a[i] != 23;i := i + 4; {8287#(and (or (<= main_i 80) (<= main_n 24)) (or (< 24 main_n) (and (<= 80 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:32:47,339 INFO L273 TraceCheckUtils]: 40: Hoare triple {8287#(and (or (<= main_i 80) (<= main_n 24)) (or (< 24 main_n) (and (<= 80 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {8287#(and (or (<= main_i 80) (<= main_n 24)) (or (< 24 main_n) (and (<= 80 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:32:47,340 INFO L273 TraceCheckUtils]: 41: Hoare triple {8287#(and (or (<= main_i 80) (<= main_n 24)) (or (< 24 main_n) (and (<= 80 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {8288#(and (or (<= main_i 84) (<= main_n 24)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 84 main_i)) (< 24 main_n)))} is VALID [2019-01-31 14:32:47,341 INFO L273 TraceCheckUtils]: 42: Hoare triple {8288#(and (or (<= main_i 84) (<= main_n 24)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 84 main_i)) (< 24 main_n)))} assume i <= n * 4; {8288#(and (or (<= main_i 84) (<= main_n 24)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 84 main_i)) (< 24 main_n)))} is VALID [2019-01-31 14:32:47,342 INFO L273 TraceCheckUtils]: 43: Hoare triple {8288#(and (or (<= main_i 84) (<= main_n 24)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 84 main_i)) (< 24 main_n)))} assume a[i] != 23;i := i + 4; {8289#(and (or (< 24 main_n) (and (<= 88 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 88) (<= main_n 24)))} is VALID [2019-01-31 14:32:47,343 INFO L273 TraceCheckUtils]: 44: Hoare triple {8289#(and (or (< 24 main_n) (and (<= 88 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 88) (<= main_n 24)))} assume i <= n * 4; {8289#(and (or (< 24 main_n) (and (<= 88 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 88) (<= main_n 24)))} is VALID [2019-01-31 14:32:47,344 INFO L273 TraceCheckUtils]: 45: Hoare triple {8289#(and (or (< 24 main_n) (and (<= 88 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 88) (<= main_n 24)))} assume a[i] != 23;i := i + 4; {8290#(and (or (<= main_i 92) (<= main_n 24)) (or (< 24 main_n) (and (<= 92 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:32:47,345 INFO L273 TraceCheckUtils]: 46: Hoare triple {8290#(and (or (<= main_i 92) (<= main_n 24)) (or (< 24 main_n) (and (<= 92 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {8290#(and (or (<= main_i 92) (<= main_n 24)) (or (< 24 main_n) (and (<= 92 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:32:47,346 INFO L273 TraceCheckUtils]: 47: Hoare triple {8290#(and (or (<= main_i 92) (<= main_n 24)) (or (< 24 main_n) (and (<= 92 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {8291#(and (or (<= main_i 96) (<= main_n 24)) (or (and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (<= (* 4 main_n) main_i)) (< 24 main_n)))} is VALID [2019-01-31 14:32:47,347 INFO L273 TraceCheckUtils]: 48: Hoare triple {8291#(and (or (<= main_i 96) (<= main_n 24)) (or (and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (<= (* 4 main_n) main_i)) (< 24 main_n)))} assume i <= n * 4; {8292#(and (<= main_i 96) (or (< 24 main_n) (and (<= (* 4 main_n) main_i) (<= main_i (* 4 main_n)) (= 23 (select main_a main_i)))))} is VALID [2019-01-31 14:32:47,348 INFO L273 TraceCheckUtils]: 49: Hoare triple {8292#(and (<= main_i 96) (or (< 24 main_n) (and (<= (* 4 main_n) main_i) (<= main_i (* 4 main_n)) (= 23 (select main_a main_i)))))} assume a[i] != 23;i := i + 4; {8293#(and (<= main_i 100) (<= 25 main_n))} is VALID [2019-01-31 14:32:47,349 INFO L273 TraceCheckUtils]: 50: Hoare triple {8293#(and (<= main_i 100) (<= 25 main_n))} assume !(i <= n * 4); {8266#false} is VALID [2019-01-31 14:32:47,362 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 14:32:47,363 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-31 14:32:47,363 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-01-31 14:32:47,363 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-01-31 14:32:47,363 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-01-31 14:32:47,363 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-31 14:32:47,363 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 14:32:47,379 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2019-01-31 14:32:47,380 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder TERMS_WITH_SMALL_CONSTANTS_FIRST (IT: FPandBP) [2019-01-31 14:32:47,395 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-01-31 14:32:47,395 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-01-31 14:32:47,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-31 14:32:47,409 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-31 14:32:47,428 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 14:32:47,430 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-01-31 14:32:47,437 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-31 14:32:47,438 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2019-01-31 14:32:47,448 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-01-31 14:32:47,448 WARN L398 uantifierElimination]: Input elimination task: ∃ [v_main_a_28]. (and (= (store v_main_a_28 (* 4 main_n) 23) main_a) (= main_i 0)) [2019-01-31 14:32:47,448 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2019-01-31 14:32:48,899 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2019-01-31 14:32:48,902 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-01-31 14:32:48,906 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-31 14:32:48,907 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2019-01-31 14:32:48,909 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-01-31 14:32:48,909 WARN L398 uantifierElimination]: Input elimination task: ∃ [main_a]. (let ((.cse0 (* 4 main_n))) (and (<= 96 .cse0) (<= main_i 100) (not (= (select main_a 96) 23)) (= 23 (select main_a .cse0)))) [2019-01-31 14:32:48,910 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (let ((.cse0 (* 4 main_n))) (and (<= 96 .cse0) (not (= 96 .cse0)) (<= main_i 100))) [2019-01-31 14:32:48,942 INFO L273 TraceCheckUtils]: 0: Hoare triple {8265#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {8297#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:48,943 INFO L273 TraceCheckUtils]: 1: Hoare triple {8297#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {8301#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2019-01-31 14:32:48,943 INFO L273 TraceCheckUtils]: 2: Hoare triple {8301#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume i <= n * 4; {8301#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2019-01-31 14:32:48,943 INFO L273 TraceCheckUtils]: 3: Hoare triple {8301#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume a[i] != 23;i := i + 4; {8308#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:48,944 INFO L273 TraceCheckUtils]: 4: Hoare triple {8308#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {8308#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:48,944 INFO L273 TraceCheckUtils]: 5: Hoare triple {8308#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {8315#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2019-01-31 14:32:48,945 INFO L273 TraceCheckUtils]: 6: Hoare triple {8315#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume i <= n * 4; {8315#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2019-01-31 14:32:48,945 INFO L273 TraceCheckUtils]: 7: Hoare triple {8315#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume a[i] != 23;i := i + 4; {8322#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:48,946 INFO L273 TraceCheckUtils]: 8: Hoare triple {8322#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {8322#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:48,947 INFO L273 TraceCheckUtils]: 9: Hoare triple {8322#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {8329#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:48,948 INFO L273 TraceCheckUtils]: 10: Hoare triple {8329#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {8329#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:48,948 INFO L273 TraceCheckUtils]: 11: Hoare triple {8329#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {8336#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:48,949 INFO L273 TraceCheckUtils]: 12: Hoare triple {8336#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {8336#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:48,950 INFO L273 TraceCheckUtils]: 13: Hoare triple {8336#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {8343#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:48,950 INFO L273 TraceCheckUtils]: 14: Hoare triple {8343#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {8343#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:48,951 INFO L273 TraceCheckUtils]: 15: Hoare triple {8343#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {8350#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:48,952 INFO L273 TraceCheckUtils]: 16: Hoare triple {8350#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {8350#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:48,952 INFO L273 TraceCheckUtils]: 17: Hoare triple {8350#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {8357#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:48,960 INFO L273 TraceCheckUtils]: 18: Hoare triple {8357#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {8357#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:48,960 INFO L273 TraceCheckUtils]: 19: Hoare triple {8357#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {8364#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:48,961 INFO L273 TraceCheckUtils]: 20: Hoare triple {8364#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {8364#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:48,961 INFO L273 TraceCheckUtils]: 21: Hoare triple {8364#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {8371#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:48,962 INFO L273 TraceCheckUtils]: 22: Hoare triple {8371#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {8371#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:48,962 INFO L273 TraceCheckUtils]: 23: Hoare triple {8371#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {8378#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:48,963 INFO L273 TraceCheckUtils]: 24: Hoare triple {8378#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {8378#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:48,963 INFO L273 TraceCheckUtils]: 25: Hoare triple {8378#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {8385#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:48,963 INFO L273 TraceCheckUtils]: 26: Hoare triple {8385#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {8385#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:48,964 INFO L273 TraceCheckUtils]: 27: Hoare triple {8385#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {8392#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:48,964 INFO L273 TraceCheckUtils]: 28: Hoare triple {8392#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {8392#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:48,965 INFO L273 TraceCheckUtils]: 29: Hoare triple {8392#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {8399#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:48,965 INFO L273 TraceCheckUtils]: 30: Hoare triple {8399#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {8399#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:48,966 INFO L273 TraceCheckUtils]: 31: Hoare triple {8399#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {8406#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:48,967 INFO L273 TraceCheckUtils]: 32: Hoare triple {8406#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {8406#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:48,968 INFO L273 TraceCheckUtils]: 33: Hoare triple {8406#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {8413#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:48,968 INFO L273 TraceCheckUtils]: 34: Hoare triple {8413#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {8413#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:48,969 INFO L273 TraceCheckUtils]: 35: Hoare triple {8413#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {8420#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:48,970 INFO L273 TraceCheckUtils]: 36: Hoare triple {8420#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {8420#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:48,970 INFO L273 TraceCheckUtils]: 37: Hoare triple {8420#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {8427#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:48,971 INFO L273 TraceCheckUtils]: 38: Hoare triple {8427#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {8427#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:48,972 INFO L273 TraceCheckUtils]: 39: Hoare triple {8427#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {8434#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} is VALID [2019-01-31 14:32:48,972 INFO L273 TraceCheckUtils]: 40: Hoare triple {8434#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} assume i <= n * 4; {8434#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} is VALID [2019-01-31 14:32:48,973 INFO L273 TraceCheckUtils]: 41: Hoare triple {8434#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} assume a[i] != 23;i := i + 4; {8441#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:48,974 INFO L273 TraceCheckUtils]: 42: Hoare triple {8441#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {8441#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:48,975 INFO L273 TraceCheckUtils]: 43: Hoare triple {8441#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {8448#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:48,975 INFO L273 TraceCheckUtils]: 44: Hoare triple {8448#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {8448#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:48,976 INFO L273 TraceCheckUtils]: 45: Hoare triple {8448#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {8455#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:48,977 INFO L273 TraceCheckUtils]: 46: Hoare triple {8455#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {8455#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:48,977 INFO L273 TraceCheckUtils]: 47: Hoare triple {8455#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {8462#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:48,978 INFO L273 TraceCheckUtils]: 48: Hoare triple {8462#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {8466#(and (= main_i 96) (<= main_i (* 4 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:48,979 INFO L273 TraceCheckUtils]: 49: Hoare triple {8466#(and (= main_i 96) (<= main_i (* 4 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {8293#(and (<= main_i 100) (<= 25 main_n))} is VALID [2019-01-31 14:32:48,980 INFO L273 TraceCheckUtils]: 50: Hoare triple {8293#(and (<= main_i 100) (<= 25 main_n))} assume !(i <= n * 4); {8266#false} is VALID [2019-01-31 14:32:48,988 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 14:32:48,988 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2019-01-31 14:32:51,446 INFO L273 TraceCheckUtils]: 50: Hoare triple {8473#(<= main_i (* 4 main_n))} assume !(i <= n * 4); {8266#false} is VALID [2019-01-31 14:32:51,447 INFO L273 TraceCheckUtils]: 49: Hoare triple {8477#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} assume a[i] != 23;i := i + 4; {8473#(<= main_i (* 4 main_n))} is VALID [2019-01-31 14:32:51,448 INFO L273 TraceCheckUtils]: 48: Hoare triple {8481#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} assume i <= n * 4; {8477#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} is VALID [2019-01-31 14:32:51,449 INFO L273 TraceCheckUtils]: 47: Hoare triple {8485#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume a[i] != 23;i := i + 4; {8481#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} is VALID [2019-01-31 14:32:51,449 INFO L273 TraceCheckUtils]: 46: Hoare triple {8485#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume i <= n * 4; {8485#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2019-01-31 14:32:51,450 INFO L273 TraceCheckUtils]: 45: Hoare triple {8492#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume a[i] != 23;i := i + 4; {8485#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2019-01-31 14:32:51,450 INFO L273 TraceCheckUtils]: 44: Hoare triple {8492#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume i <= n * 4; {8492#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2019-01-31 14:32:51,451 INFO L273 TraceCheckUtils]: 43: Hoare triple {8499#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume a[i] != 23;i := i + 4; {8492#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2019-01-31 14:32:51,451 INFO L273 TraceCheckUtils]: 42: Hoare triple {8499#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume i <= n * 4; {8499#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2019-01-31 14:32:51,452 INFO L273 TraceCheckUtils]: 41: Hoare triple {8506#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume a[i] != 23;i := i + 4; {8499#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2019-01-31 14:32:51,452 INFO L273 TraceCheckUtils]: 40: Hoare triple {8506#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume i <= n * 4; {8506#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2019-01-31 14:32:51,453 INFO L273 TraceCheckUtils]: 39: Hoare triple {8513#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {8506#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2019-01-31 14:32:51,454 INFO L273 TraceCheckUtils]: 38: Hoare triple {8513#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume i <= n * 4; {8513#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2019-01-31 14:32:51,455 INFO L273 TraceCheckUtils]: 37: Hoare triple {8520#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume a[i] != 23;i := i + 4; {8513#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2019-01-31 14:32:51,455 INFO L273 TraceCheckUtils]: 36: Hoare triple {8520#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume i <= n * 4; {8520#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2019-01-31 14:32:51,457 INFO L273 TraceCheckUtils]: 35: Hoare triple {8527#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {8520#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2019-01-31 14:32:51,457 INFO L273 TraceCheckUtils]: 34: Hoare triple {8527#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume i <= n * 4; {8527#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2019-01-31 14:32:51,458 INFO L273 TraceCheckUtils]: 33: Hoare triple {8534#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {8527#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2019-01-31 14:32:51,459 INFO L273 TraceCheckUtils]: 32: Hoare triple {8534#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume i <= n * 4; {8534#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2019-01-31 14:32:51,460 INFO L273 TraceCheckUtils]: 31: Hoare triple {8541#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {8534#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2019-01-31 14:32:51,460 INFO L273 TraceCheckUtils]: 30: Hoare triple {8541#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume i <= n * 4; {8541#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2019-01-31 14:32:51,461 INFO L273 TraceCheckUtils]: 29: Hoare triple {8548#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} assume a[i] != 23;i := i + 4; {8541#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2019-01-31 14:32:51,462 INFO L273 TraceCheckUtils]: 28: Hoare triple {8548#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} assume i <= n * 4; {8548#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} is VALID [2019-01-31 14:32:51,463 INFO L273 TraceCheckUtils]: 27: Hoare triple {8555#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {8548#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} is VALID [2019-01-31 14:32:51,464 INFO L273 TraceCheckUtils]: 26: Hoare triple {8555#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} assume i <= n * 4; {8555#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} is VALID [2019-01-31 14:32:51,465 INFO L273 TraceCheckUtils]: 25: Hoare triple {8562#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {8555#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} is VALID [2019-01-31 14:32:51,465 INFO L273 TraceCheckUtils]: 24: Hoare triple {8562#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} assume i <= n * 4; {8562#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} is VALID [2019-01-31 14:32:51,466 INFO L273 TraceCheckUtils]: 23: Hoare triple {8569#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} assume a[i] != 23;i := i + 4; {8562#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} is VALID [2019-01-31 14:32:51,467 INFO L273 TraceCheckUtils]: 22: Hoare triple {8569#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} assume i <= n * 4; {8569#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} is VALID [2019-01-31 14:32:51,468 INFO L273 TraceCheckUtils]: 21: Hoare triple {8576#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {8569#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} is VALID [2019-01-31 14:32:51,469 INFO L273 TraceCheckUtils]: 20: Hoare triple {8576#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} assume i <= n * 4; {8576#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} is VALID [2019-01-31 14:32:51,470 INFO L273 TraceCheckUtils]: 19: Hoare triple {8583#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} assume a[i] != 23;i := i + 4; {8576#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} is VALID [2019-01-31 14:32:51,470 INFO L273 TraceCheckUtils]: 18: Hoare triple {8583#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} assume i <= n * 4; {8583#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} is VALID [2019-01-31 14:32:51,471 INFO L273 TraceCheckUtils]: 17: Hoare triple {8590#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} assume a[i] != 23;i := i + 4; {8583#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} is VALID [2019-01-31 14:32:51,472 INFO L273 TraceCheckUtils]: 16: Hoare triple {8590#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} assume i <= n * 4; {8590#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} is VALID [2019-01-31 14:32:51,473 INFO L273 TraceCheckUtils]: 15: Hoare triple {8597#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} assume a[i] != 23;i := i + 4; {8590#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} is VALID [2019-01-31 14:32:51,474 INFO L273 TraceCheckUtils]: 14: Hoare triple {8597#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} assume i <= n * 4; {8597#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} is VALID [2019-01-31 14:32:51,475 INFO L273 TraceCheckUtils]: 13: Hoare triple {8604#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} assume a[i] != 23;i := i + 4; {8597#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} is VALID [2019-01-31 14:32:51,475 INFO L273 TraceCheckUtils]: 12: Hoare triple {8604#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} assume i <= n * 4; {8604#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} is VALID [2019-01-31 14:32:51,476 INFO L273 TraceCheckUtils]: 11: Hoare triple {8611#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} assume a[i] != 23;i := i + 4; {8604#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} is VALID [2019-01-31 14:32:51,477 INFO L273 TraceCheckUtils]: 10: Hoare triple {8611#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} assume i <= n * 4; {8611#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} is VALID [2019-01-31 14:32:51,478 INFO L273 TraceCheckUtils]: 9: Hoare triple {8618#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} assume a[i] != 23;i := i + 4; {8611#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} is VALID [2019-01-31 14:32:51,478 INFO L273 TraceCheckUtils]: 8: Hoare triple {8618#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} assume i <= n * 4; {8618#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} is VALID [2019-01-31 14:32:51,479 INFO L273 TraceCheckUtils]: 7: Hoare triple {8625#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {8618#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} is VALID [2019-01-31 14:32:51,480 INFO L273 TraceCheckUtils]: 6: Hoare triple {8625#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} assume i <= n * 4; {8625#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} is VALID [2019-01-31 14:32:51,481 INFO L273 TraceCheckUtils]: 5: Hoare triple {8632#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {8625#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} is VALID [2019-01-31 14:32:51,481 INFO L273 TraceCheckUtils]: 4: Hoare triple {8632#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} assume i <= n * 4; {8632#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} is VALID [2019-01-31 14:32:51,483 INFO L273 TraceCheckUtils]: 3: Hoare triple {8639#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {8632#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} is VALID [2019-01-31 14:32:51,483 INFO L273 TraceCheckUtils]: 2: Hoare triple {8639#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} assume i <= n * 4; {8639#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} is VALID [2019-01-31 14:32:51,484 INFO L273 TraceCheckUtils]: 1: Hoare triple {8646#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} assume a[i] != 23;i := i + 4; {8639#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} is VALID [2019-01-31 14:32:51,485 INFO L273 TraceCheckUtils]: 0: Hoare triple {8265#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {8646#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} is VALID [2019-01-31 14:32:51,496 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 14:32:51,514 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-01-31 14:32:51,514 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 27, 27] total 80 [2019-01-31 14:32:51,514 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-01-31 14:32:51,515 INFO L78 Accepts]: Start accepts. Automaton has 55 states. Word has length 51 [2019-01-31 14:32:51,515 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-01-31 14:32:51,515 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 55 states. [2019-01-31 14:32:51,710 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 14:32:51,710 INFO L459 AbstractCegarLoop]: Interpolant automaton has 55 states [2019-01-31 14:32:51,711 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 55 interpolants. [2019-01-31 14:32:51,711 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=872, Invalid=5770, Unknown=0, NotChecked=0, Total=6642 [2019-01-31 14:32:51,711 INFO L87 Difference]: Start difference. First operand 52 states and 52 transitions. Second operand 55 states. [2019-01-31 14:32:56,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 14:32:56,841 INFO L93 Difference]: Finished difference Result 56 states and 56 transitions. [2019-01-31 14:32:56,842 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2019-01-31 14:32:56,842 INFO L78 Accepts]: Start accepts. Automaton has 55 states. Word has length 51 [2019-01-31 14:32:56,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-31 14:32:56,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2019-01-31 14:32:56,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 56 transitions. [2019-01-31 14:32:56,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2019-01-31 14:32:56,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 56 transitions. [2019-01-31 14:32:56,844 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 29 states and 56 transitions. [2019-01-31 14:32:56,901 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 14:32:56,902 INFO L225 Difference]: With dead ends: 56 [2019-01-31 14:32:56,902 INFO L226 Difference]: Without dead ends: 55 [2019-01-31 14:32:56,903 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 46 SyntacticMatches, 1 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1508 ImplicationChecksByTransitivity, 4.8s TimeCoverageRelationStatistics Valid=872, Invalid=5770, Unknown=0, NotChecked=0, Total=6642 [2019-01-31 14:32:56,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2019-01-31 14:32:56,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 54. [2019-01-31 14:32:56,951 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-01-31 14:32:56,951 INFO L82 GeneralOperation]: Start isEquivalent. First operand 55 states. Second operand 54 states. [2019-01-31 14:32:56,951 INFO L74 IsIncluded]: Start isIncluded. First operand 55 states. Second operand 54 states. [2019-01-31 14:32:56,951 INFO L87 Difference]: Start difference. First operand 55 states. Second operand 54 states. [2019-01-31 14:32:56,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 14:32:56,952 INFO L93 Difference]: Finished difference Result 55 states and 55 transitions. [2019-01-31 14:32:56,953 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 55 transitions. [2019-01-31 14:32:56,953 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-31 14:32:56,953 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-01-31 14:32:56,953 INFO L74 IsIncluded]: Start isIncluded. First operand 54 states. Second operand 55 states. [2019-01-31 14:32:56,953 INFO L87 Difference]: Start difference. First operand 54 states. Second operand 55 states. [2019-01-31 14:32:56,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 14:32:56,954 INFO L93 Difference]: Finished difference Result 55 states and 55 transitions. [2019-01-31 14:32:56,954 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 55 transitions. [2019-01-31 14:32:56,954 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-31 14:32:56,954 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-01-31 14:32:56,954 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-01-31 14:32:56,954 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-01-31 14:32:56,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2019-01-31 14:32:56,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 54 transitions. [2019-01-31 14:32:56,955 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 54 transitions. Word has length 51 [2019-01-31 14:32:56,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-31 14:32:56,955 INFO L480 AbstractCegarLoop]: Abstraction has 54 states and 54 transitions. [2019-01-31 14:32:56,955 INFO L481 AbstractCegarLoop]: Interpolant automaton has 55 states. [2019-01-31 14:32:56,956 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 54 transitions. [2019-01-31 14:32:56,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2019-01-31 14:32:56,956 INFO L394 BasicCegarLoop]: Found error trace [2019-01-31 14:32:56,956 INFO L402 BasicCegarLoop]: trace histogram [26, 25, 1, 1] [2019-01-31 14:32:56,956 INFO L423 AbstractCegarLoop]: === Iteration 26 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-01-31 14:32:56,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-31 14:32:56,957 INFO L82 PathProgramCache]: Analyzing trace with hash 893088082, now seen corresponding path program 25 times [2019-01-31 14:32:56,957 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-01-31 14:32:56,957 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-31 14:32:56,957 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-01-31 14:32:56,958 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-31 14:32:56,958 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-01-31 14:32:56,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-31 14:32:58,174 INFO L273 TraceCheckUtils]: 0: Hoare triple {8922#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {8924#(and (or (<= main_n 25) (<= main_i 0)) (or (<= 0 main_i) (< 25 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:58,176 INFO L273 TraceCheckUtils]: 1: Hoare triple {8924#(and (or (<= main_n 25) (<= main_i 0)) (or (<= 0 main_i) (< 25 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {8925#(and (or (< 25 main_n) (<= 4 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 25) (<= main_i 4)))} is VALID [2019-01-31 14:32:58,176 INFO L273 TraceCheckUtils]: 2: Hoare triple {8925#(and (or (< 25 main_n) (<= 4 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 25) (<= main_i 4)))} assume i <= n * 4; {8925#(and (or (< 25 main_n) (<= 4 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 25) (<= main_i 4)))} is VALID [2019-01-31 14:32:58,177 INFO L273 TraceCheckUtils]: 3: Hoare triple {8925#(and (or (< 25 main_n) (<= 4 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 25) (<= main_i 4)))} assume a[i] != 23;i := i + 4; {8926#(and (or (<= main_i 8) (<= main_n 25)) (or (<= 8 main_i) (< 25 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:58,178 INFO L273 TraceCheckUtils]: 4: Hoare triple {8926#(and (or (<= main_i 8) (<= main_n 25)) (or (<= 8 main_i) (< 25 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {8926#(and (or (<= main_i 8) (<= main_n 25)) (or (<= 8 main_i) (< 25 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:58,179 INFO L273 TraceCheckUtils]: 5: Hoare triple {8926#(and (or (<= main_i 8) (<= main_n 25)) (or (<= 8 main_i) (< 25 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {8927#(and (or (< 25 main_n) (<= 12 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 25) (<= main_i 12)))} is VALID [2019-01-31 14:32:58,180 INFO L273 TraceCheckUtils]: 6: Hoare triple {8927#(and (or (< 25 main_n) (<= 12 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 25) (<= main_i 12)))} assume i <= n * 4; {8927#(and (or (< 25 main_n) (<= 12 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 25) (<= main_i 12)))} is VALID [2019-01-31 14:32:58,181 INFO L273 TraceCheckUtils]: 7: Hoare triple {8927#(and (or (< 25 main_n) (<= 12 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 25) (<= main_i 12)))} assume a[i] != 23;i := i + 4; {8928#(and (or (<= main_n 25) (<= main_i 16)) (or (<= 16 main_i) (< 25 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:58,182 INFO L273 TraceCheckUtils]: 8: Hoare triple {8928#(and (or (<= main_n 25) (<= main_i 16)) (or (<= 16 main_i) (< 25 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {8928#(and (or (<= main_n 25) (<= main_i 16)) (or (<= 16 main_i) (< 25 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:58,183 INFO L273 TraceCheckUtils]: 9: Hoare triple {8928#(and (or (<= main_n 25) (<= main_i 16)) (or (<= 16 main_i) (< 25 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {8929#(and (or (< 25 main_n) (<= 20 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 25) (<= main_i 20)))} is VALID [2019-01-31 14:32:58,184 INFO L273 TraceCheckUtils]: 10: Hoare triple {8929#(and (or (< 25 main_n) (<= 20 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 25) (<= main_i 20)))} assume i <= n * 4; {8929#(and (or (< 25 main_n) (<= 20 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 25) (<= main_i 20)))} is VALID [2019-01-31 14:32:58,185 INFO L273 TraceCheckUtils]: 11: Hoare triple {8929#(and (or (< 25 main_n) (<= 20 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 25) (<= main_i 20)))} assume a[i] != 23;i := i + 4; {8930#(and (or (<= main_n 25) (<= main_i 24)) (= 23 (select main_a (* 4 main_n))) (or (<= 24 main_i) (< 25 main_n)))} is VALID [2019-01-31 14:32:58,185 INFO L273 TraceCheckUtils]: 12: Hoare triple {8930#(and (or (<= main_n 25) (<= main_i 24)) (= 23 (select main_a (* 4 main_n))) (or (<= 24 main_i) (< 25 main_n)))} assume i <= n * 4; {8930#(and (or (<= main_n 25) (<= main_i 24)) (= 23 (select main_a (* 4 main_n))) (or (<= 24 main_i) (< 25 main_n)))} is VALID [2019-01-31 14:32:58,186 INFO L273 TraceCheckUtils]: 13: Hoare triple {8930#(and (or (<= main_n 25) (<= main_i 24)) (= 23 (select main_a (* 4 main_n))) (or (<= 24 main_i) (< 25 main_n)))} assume a[i] != 23;i := i + 4; {8931#(and (= 23 (select main_a (* 4 main_n))) (or (<= 28 main_i) (< 25 main_n)) (or (<= main_n 25) (<= main_i 28)))} is VALID [2019-01-31 14:32:58,187 INFO L273 TraceCheckUtils]: 14: Hoare triple {8931#(and (= 23 (select main_a (* 4 main_n))) (or (<= 28 main_i) (< 25 main_n)) (or (<= main_n 25) (<= main_i 28)))} assume i <= n * 4; {8931#(and (= 23 (select main_a (* 4 main_n))) (or (<= 28 main_i) (< 25 main_n)) (or (<= main_n 25) (<= main_i 28)))} is VALID [2019-01-31 14:32:58,188 INFO L273 TraceCheckUtils]: 15: Hoare triple {8931#(and (= 23 (select main_a (* 4 main_n))) (or (<= 28 main_i) (< 25 main_n)) (or (<= main_n 25) (<= main_i 28)))} assume a[i] != 23;i := i + 4; {8932#(and (or (<= 32 main_i) (< 25 main_n)) (or (<= main_i 32) (<= main_n 25)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:58,189 INFO L273 TraceCheckUtils]: 16: Hoare triple {8932#(and (or (<= 32 main_i) (< 25 main_n)) (or (<= main_i 32) (<= main_n 25)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {8932#(and (or (<= 32 main_i) (< 25 main_n)) (or (<= main_i 32) (<= main_n 25)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:58,190 INFO L273 TraceCheckUtils]: 17: Hoare triple {8932#(and (or (<= 32 main_i) (< 25 main_n)) (or (<= main_i 32) (<= main_n 25)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {8933#(and (or (< 25 main_n) (<= 36 main_i)) (or (<= main_i 36) (<= main_n 25)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:58,191 INFO L273 TraceCheckUtils]: 18: Hoare triple {8933#(and (or (< 25 main_n) (<= 36 main_i)) (or (<= main_i 36) (<= main_n 25)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {8933#(and (or (< 25 main_n) (<= 36 main_i)) (or (<= main_i 36) (<= main_n 25)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:58,192 INFO L273 TraceCheckUtils]: 19: Hoare triple {8933#(and (or (< 25 main_n) (<= 36 main_i)) (or (<= main_i 36) (<= main_n 25)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {8934#(and (or (<= main_i 40) (<= main_n 25)) (= 23 (select main_a (* 4 main_n))) (or (<= 40 main_i) (< 25 main_n)))} is VALID [2019-01-31 14:32:58,193 INFO L273 TraceCheckUtils]: 20: Hoare triple {8934#(and (or (<= main_i 40) (<= main_n 25)) (= 23 (select main_a (* 4 main_n))) (or (<= 40 main_i) (< 25 main_n)))} assume i <= n * 4; {8934#(and (or (<= main_i 40) (<= main_n 25)) (= 23 (select main_a (* 4 main_n))) (or (<= 40 main_i) (< 25 main_n)))} is VALID [2019-01-31 14:32:58,194 INFO L273 TraceCheckUtils]: 21: Hoare triple {8934#(and (or (<= main_i 40) (<= main_n 25)) (= 23 (select main_a (* 4 main_n))) (or (<= 40 main_i) (< 25 main_n)))} assume a[i] != 23;i := i + 4; {8935#(and (or (<= 44 main_i) (< 25 main_n)) (or (<= main_n 25) (<= main_i 44)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:58,194 INFO L273 TraceCheckUtils]: 22: Hoare triple {8935#(and (or (<= 44 main_i) (< 25 main_n)) (or (<= main_n 25) (<= main_i 44)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {8935#(and (or (<= 44 main_i) (< 25 main_n)) (or (<= main_n 25) (<= main_i 44)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:58,195 INFO L273 TraceCheckUtils]: 23: Hoare triple {8935#(and (or (<= 44 main_i) (< 25 main_n)) (or (<= main_n 25) (<= main_i 44)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {8936#(and (or (<= main_n 25) (<= main_i 48)) (= 23 (select main_a (* 4 main_n))) (or (<= 48 main_i) (< 25 main_n)))} is VALID [2019-01-31 14:32:58,196 INFO L273 TraceCheckUtils]: 24: Hoare triple {8936#(and (or (<= main_n 25) (<= main_i 48)) (= 23 (select main_a (* 4 main_n))) (or (<= 48 main_i) (< 25 main_n)))} assume i <= n * 4; {8936#(and (or (<= main_n 25) (<= main_i 48)) (= 23 (select main_a (* 4 main_n))) (or (<= 48 main_i) (< 25 main_n)))} is VALID [2019-01-31 14:32:58,197 INFO L273 TraceCheckUtils]: 25: Hoare triple {8936#(and (or (<= main_n 25) (<= main_i 48)) (= 23 (select main_a (* 4 main_n))) (or (<= 48 main_i) (< 25 main_n)))} assume a[i] != 23;i := i + 4; {8937#(and (= 23 (select main_a (* 4 main_n))) (or (<= main_i 52) (<= main_n 25)) (or (< 25 main_n) (<= 52 main_i)))} is VALID [2019-01-31 14:32:58,198 INFO L273 TraceCheckUtils]: 26: Hoare triple {8937#(and (= 23 (select main_a (* 4 main_n))) (or (<= main_i 52) (<= main_n 25)) (or (< 25 main_n) (<= 52 main_i)))} assume i <= n * 4; {8937#(and (= 23 (select main_a (* 4 main_n))) (or (<= main_i 52) (<= main_n 25)) (or (< 25 main_n) (<= 52 main_i)))} is VALID [2019-01-31 14:32:58,199 INFO L273 TraceCheckUtils]: 27: Hoare triple {8937#(and (= 23 (select main_a (* 4 main_n))) (or (<= main_i 52) (<= main_n 25)) (or (< 25 main_n) (<= 52 main_i)))} assume a[i] != 23;i := i + 4; {8938#(and (or (<= main_n 25) (<= main_i 56)) (= 23 (select main_a (* 4 main_n))) (or (<= 56 main_i) (< 25 main_n)))} is VALID [2019-01-31 14:32:58,200 INFO L273 TraceCheckUtils]: 28: Hoare triple {8938#(and (or (<= main_n 25) (<= main_i 56)) (= 23 (select main_a (* 4 main_n))) (or (<= 56 main_i) (< 25 main_n)))} assume i <= n * 4; {8938#(and (or (<= main_n 25) (<= main_i 56)) (= 23 (select main_a (* 4 main_n))) (or (<= 56 main_i) (< 25 main_n)))} is VALID [2019-01-31 14:32:58,201 INFO L273 TraceCheckUtils]: 29: Hoare triple {8938#(and (or (<= main_n 25) (<= main_i 56)) (= 23 (select main_a (* 4 main_n))) (or (<= 56 main_i) (< 25 main_n)))} assume a[i] != 23;i := i + 4; {8939#(and (or (<= 60 main_i) (< 25 main_n)) (or (<= main_n 25) (<= main_i 60)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:58,202 INFO L273 TraceCheckUtils]: 30: Hoare triple {8939#(and (or (<= 60 main_i) (< 25 main_n)) (or (<= main_n 25) (<= main_i 60)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {8939#(and (or (<= 60 main_i) (< 25 main_n)) (or (<= main_n 25) (<= main_i 60)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:58,203 INFO L273 TraceCheckUtils]: 31: Hoare triple {8939#(and (or (<= 60 main_i) (< 25 main_n)) (or (<= main_n 25) (<= main_i 60)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {8940#(and (or (<= 64 main_i) (< 25 main_n)) (or (<= main_n 25) (<= main_i 64)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:58,203 INFO L273 TraceCheckUtils]: 32: Hoare triple {8940#(and (or (<= 64 main_i) (< 25 main_n)) (or (<= main_n 25) (<= main_i 64)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {8940#(and (or (<= 64 main_i) (< 25 main_n)) (or (<= main_n 25) (<= main_i 64)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:58,204 INFO L273 TraceCheckUtils]: 33: Hoare triple {8940#(and (or (<= 64 main_i) (< 25 main_n)) (or (<= main_n 25) (<= main_i 64)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {8941#(and (or (< 25 main_n) (<= 68 main_i)) (or (<= main_n 25) (<= main_i 68)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:58,205 INFO L273 TraceCheckUtils]: 34: Hoare triple {8941#(and (or (< 25 main_n) (<= 68 main_i)) (or (<= main_n 25) (<= main_i 68)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {8941#(and (or (< 25 main_n) (<= 68 main_i)) (or (<= main_n 25) (<= main_i 68)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:58,206 INFO L273 TraceCheckUtils]: 35: Hoare triple {8941#(and (or (< 25 main_n) (<= 68 main_i)) (or (<= main_n 25) (<= main_i 68)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {8942#(and (or (<= 72 main_i) (< 25 main_n)) (or (<= main_n 25) (<= main_i 72)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:58,207 INFO L273 TraceCheckUtils]: 36: Hoare triple {8942#(and (or (<= 72 main_i) (< 25 main_n)) (or (<= main_n 25) (<= main_i 72)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {8942#(and (or (<= 72 main_i) (< 25 main_n)) (or (<= main_n 25) (<= main_i 72)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:58,208 INFO L273 TraceCheckUtils]: 37: Hoare triple {8942#(and (or (<= 72 main_i) (< 25 main_n)) (or (<= main_n 25) (<= main_i 72)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {8943#(and (or (<= 76 main_i) (< 25 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 76) (<= main_n 25)))} is VALID [2019-01-31 14:32:58,209 INFO L273 TraceCheckUtils]: 38: Hoare triple {8943#(and (or (<= 76 main_i) (< 25 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 76) (<= main_n 25)))} assume i <= n * 4; {8943#(and (or (<= 76 main_i) (< 25 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 76) (<= main_n 25)))} is VALID [2019-01-31 14:32:58,210 INFO L273 TraceCheckUtils]: 39: Hoare triple {8943#(and (or (<= 76 main_i) (< 25 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 76) (<= main_n 25)))} assume a[i] != 23;i := i + 4; {8944#(and (or (<= 80 main_i) (< 25 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 25) (<= main_i 80)))} is VALID [2019-01-31 14:32:58,211 INFO L273 TraceCheckUtils]: 40: Hoare triple {8944#(and (or (<= 80 main_i) (< 25 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 25) (<= main_i 80)))} assume i <= n * 4; {8944#(and (or (<= 80 main_i) (< 25 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 25) (<= main_i 80)))} is VALID [2019-01-31 14:32:58,212 INFO L273 TraceCheckUtils]: 41: Hoare triple {8944#(and (or (<= 80 main_i) (< 25 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 25) (<= main_i 80)))} assume a[i] != 23;i := i + 4; {8945#(and (or (<= main_i 84) (<= main_n 25)) (or (< 25 main_n) (<= 84 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:58,212 INFO L273 TraceCheckUtils]: 42: Hoare triple {8945#(and (or (<= main_i 84) (<= main_n 25)) (or (< 25 main_n) (<= 84 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {8945#(and (or (<= main_i 84) (<= main_n 25)) (or (< 25 main_n) (<= 84 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:58,213 INFO L273 TraceCheckUtils]: 43: Hoare triple {8945#(and (or (<= main_i 84) (<= main_n 25)) (or (< 25 main_n) (<= 84 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {8946#(and (or (<= main_i 88) (<= main_n 25)) (or (<= 88 main_i) (< 25 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:58,214 INFO L273 TraceCheckUtils]: 44: Hoare triple {8946#(and (or (<= main_i 88) (<= main_n 25)) (or (<= 88 main_i) (< 25 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {8946#(and (or (<= main_i 88) (<= main_n 25)) (or (<= 88 main_i) (< 25 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:58,215 INFO L273 TraceCheckUtils]: 45: Hoare triple {8946#(and (or (<= main_i 88) (<= main_n 25)) (or (<= 88 main_i) (< 25 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {8947#(and (or (< 25 main_n) (<= 92 main_i)) (or (<= main_i 92) (<= main_n 25)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:58,216 INFO L273 TraceCheckUtils]: 46: Hoare triple {8947#(and (or (< 25 main_n) (<= 92 main_i)) (or (<= main_i 92) (<= main_n 25)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {8947#(and (or (< 25 main_n) (<= 92 main_i)) (or (<= main_i 92) (<= main_n 25)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:58,217 INFO L273 TraceCheckUtils]: 47: Hoare triple {8947#(and (or (< 25 main_n) (<= 92 main_i)) (or (<= main_i 92) (<= main_n 25)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {8948#(and (or (<= 96 main_i) (< 25 main_n)) (or (<= main_i 96) (<= main_n 25)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:58,218 INFO L273 TraceCheckUtils]: 48: Hoare triple {8948#(and (or (<= 96 main_i) (< 25 main_n)) (or (<= main_i 96) (<= main_n 25)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {8948#(and (or (<= 96 main_i) (< 25 main_n)) (or (<= main_i 96) (<= main_n 25)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:58,219 INFO L273 TraceCheckUtils]: 49: Hoare triple {8948#(and (or (<= 96 main_i) (< 25 main_n)) (or (<= main_i 96) (<= main_n 25)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {8949#(and (or (= (* 4 main_n) main_i) (and (or (<= (* 4 main_n) main_i) (< 25 main_n)) (or (<= main_i 100) (<= main_n 25)))) (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))))} is VALID [2019-01-31 14:32:58,220 INFO L273 TraceCheckUtils]: 50: Hoare triple {8949#(and (or (= (* 4 main_n) main_i) (and (or (<= (* 4 main_n) main_i) (< 25 main_n)) (or (<= main_i 100) (<= main_n 25)))) (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))))} assume i <= n * 4; {8950#(and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (or (= (* 4 main_n) main_i) (and (<= main_i 100) (< 25 main_n))))} is VALID [2019-01-31 14:32:58,221 INFO L273 TraceCheckUtils]: 51: Hoare triple {8950#(and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (or (= (* 4 main_n) main_i) (and (<= main_i 100) (< 25 main_n))))} assume a[i] != 23;i := i + 4; {8951#(and (<= main_i 104) (< 25 main_n))} is VALID [2019-01-31 14:32:58,222 INFO L273 TraceCheckUtils]: 52: Hoare triple {8951#(and (<= main_i 104) (< 25 main_n))} assume !(i <= n * 4); {8923#false} is VALID [2019-01-31 14:32:58,236 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 14:32:58,236 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-31 14:32:58,236 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-01-31 14:32:58,236 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-01-31 14:32:58,236 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-01-31 14:32:58,236 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-31 14:32:58,237 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 14:32:58,246 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-31 14:32:58,246 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2019-01-31 14:32:58,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-31 14:32:58,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-31 14:32:58,278 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-31 14:32:58,291 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 14:32:58,293 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-01-31 14:32:58,302 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-31 14:32:58,302 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2019-01-31 14:32:58,304 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-01-31 14:32:58,304 WARN L398 uantifierElimination]: Input elimination task: ∃ [v_main_a_29]. (and (= (store v_main_a_29 (* 4 main_n) 23) main_a) (= main_i 0)) [2019-01-31 14:32:58,304 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2019-01-31 14:32:59,749 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2019-01-31 14:32:59,751 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-01-31 14:32:59,757 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-31 14:32:59,757 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2019-01-31 14:32:59,759 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-01-31 14:32:59,760 WARN L398 uantifierElimination]: Input elimination task: ∃ [main_a]. (let ((.cse0 (* 4 main_n))) (and (<= main_i 104) (not (= (select main_a 100) 23)) (= 23 (select main_a .cse0)) (<= 100 .cse0))) [2019-01-31 14:32:59,760 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (let ((.cse0 (* 4 main_n))) (and (<= main_i 104) (not (= 100 .cse0)) (<= 100 .cse0))) [2019-01-31 14:32:59,792 INFO L273 TraceCheckUtils]: 0: Hoare triple {8922#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {8955#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:59,793 INFO L273 TraceCheckUtils]: 1: Hoare triple {8955#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {8959#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2019-01-31 14:32:59,793 INFO L273 TraceCheckUtils]: 2: Hoare triple {8959#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume i <= n * 4; {8959#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2019-01-31 14:32:59,794 INFO L273 TraceCheckUtils]: 3: Hoare triple {8959#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume a[i] != 23;i := i + 4; {8966#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:59,794 INFO L273 TraceCheckUtils]: 4: Hoare triple {8966#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {8966#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:59,795 INFO L273 TraceCheckUtils]: 5: Hoare triple {8966#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {8973#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2019-01-31 14:32:59,795 INFO L273 TraceCheckUtils]: 6: Hoare triple {8973#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume i <= n * 4; {8973#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2019-01-31 14:32:59,795 INFO L273 TraceCheckUtils]: 7: Hoare triple {8973#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume a[i] != 23;i := i + 4; {8980#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:59,796 INFO L273 TraceCheckUtils]: 8: Hoare triple {8980#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {8980#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:59,796 INFO L273 TraceCheckUtils]: 9: Hoare triple {8980#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {8987#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:59,797 INFO L273 TraceCheckUtils]: 10: Hoare triple {8987#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {8987#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:59,798 INFO L273 TraceCheckUtils]: 11: Hoare triple {8987#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {8994#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:59,798 INFO L273 TraceCheckUtils]: 12: Hoare triple {8994#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {8994#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:59,799 INFO L273 TraceCheckUtils]: 13: Hoare triple {8994#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {9001#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:59,800 INFO L273 TraceCheckUtils]: 14: Hoare triple {9001#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {9001#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:59,801 INFO L273 TraceCheckUtils]: 15: Hoare triple {9001#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {9008#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:59,801 INFO L273 TraceCheckUtils]: 16: Hoare triple {9008#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {9008#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:59,802 INFO L273 TraceCheckUtils]: 17: Hoare triple {9008#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {9015#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:59,803 INFO L273 TraceCheckUtils]: 18: Hoare triple {9015#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {9015#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:59,803 INFO L273 TraceCheckUtils]: 19: Hoare triple {9015#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {9022#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:59,804 INFO L273 TraceCheckUtils]: 20: Hoare triple {9022#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {9022#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:59,805 INFO L273 TraceCheckUtils]: 21: Hoare triple {9022#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {9029#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:59,805 INFO L273 TraceCheckUtils]: 22: Hoare triple {9029#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {9029#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:59,806 INFO L273 TraceCheckUtils]: 23: Hoare triple {9029#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {9036#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:59,807 INFO L273 TraceCheckUtils]: 24: Hoare triple {9036#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {9036#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:59,807 INFO L273 TraceCheckUtils]: 25: Hoare triple {9036#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {9043#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:59,808 INFO L273 TraceCheckUtils]: 26: Hoare triple {9043#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {9043#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:59,809 INFO L273 TraceCheckUtils]: 27: Hoare triple {9043#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {9050#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:59,809 INFO L273 TraceCheckUtils]: 28: Hoare triple {9050#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {9050#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:59,810 INFO L273 TraceCheckUtils]: 29: Hoare triple {9050#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {9057#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:59,811 INFO L273 TraceCheckUtils]: 30: Hoare triple {9057#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {9057#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:59,812 INFO L273 TraceCheckUtils]: 31: Hoare triple {9057#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {9064#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:59,812 INFO L273 TraceCheckUtils]: 32: Hoare triple {9064#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {9064#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:59,813 INFO L273 TraceCheckUtils]: 33: Hoare triple {9064#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {9071#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:59,814 INFO L273 TraceCheckUtils]: 34: Hoare triple {9071#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {9071#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:59,814 INFO L273 TraceCheckUtils]: 35: Hoare triple {9071#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {9078#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:59,815 INFO L273 TraceCheckUtils]: 36: Hoare triple {9078#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {9078#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:59,816 INFO L273 TraceCheckUtils]: 37: Hoare triple {9078#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {9085#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:59,816 INFO L273 TraceCheckUtils]: 38: Hoare triple {9085#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {9085#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:59,817 INFO L273 TraceCheckUtils]: 39: Hoare triple {9085#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {9092#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} is VALID [2019-01-31 14:32:59,818 INFO L273 TraceCheckUtils]: 40: Hoare triple {9092#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} assume i <= n * 4; {9092#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} is VALID [2019-01-31 14:32:59,818 INFO L273 TraceCheckUtils]: 41: Hoare triple {9092#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} assume a[i] != 23;i := i + 4; {9099#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:59,819 INFO L273 TraceCheckUtils]: 42: Hoare triple {9099#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {9099#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:59,820 INFO L273 TraceCheckUtils]: 43: Hoare triple {9099#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {9106#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:59,821 INFO L273 TraceCheckUtils]: 44: Hoare triple {9106#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {9106#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:59,821 INFO L273 TraceCheckUtils]: 45: Hoare triple {9106#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {9113#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:59,822 INFO L273 TraceCheckUtils]: 46: Hoare triple {9113#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {9113#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:59,823 INFO L273 TraceCheckUtils]: 47: Hoare triple {9113#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {9120#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:59,823 INFO L273 TraceCheckUtils]: 48: Hoare triple {9120#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {9120#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:59,824 INFO L273 TraceCheckUtils]: 49: Hoare triple {9120#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {9127#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:59,825 INFO L273 TraceCheckUtils]: 50: Hoare triple {9127#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {9131#(and (= main_i 100) (<= main_i (* 4 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:32:59,826 INFO L273 TraceCheckUtils]: 51: Hoare triple {9131#(and (= main_i 100) (<= main_i (* 4 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {8951#(and (<= main_i 104) (< 25 main_n))} is VALID [2019-01-31 14:32:59,826 INFO L273 TraceCheckUtils]: 52: Hoare triple {8951#(and (<= main_i 104) (< 25 main_n))} assume !(i <= n * 4); {8923#false} is VALID [2019-01-31 14:32:59,834 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 14:32:59,834 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2019-01-31 14:33:01,967 INFO L273 TraceCheckUtils]: 52: Hoare triple {9138#(<= main_i (* 4 main_n))} assume !(i <= n * 4); {8923#false} is VALID [2019-01-31 14:33:01,968 INFO L273 TraceCheckUtils]: 51: Hoare triple {9142#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} assume a[i] != 23;i := i + 4; {9138#(<= main_i (* 4 main_n))} is VALID [2019-01-31 14:33:01,969 INFO L273 TraceCheckUtils]: 50: Hoare triple {9146#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} assume i <= n * 4; {9142#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} is VALID [2019-01-31 14:33:01,970 INFO L273 TraceCheckUtils]: 49: Hoare triple {9150#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume a[i] != 23;i := i + 4; {9146#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} is VALID [2019-01-31 14:33:01,970 INFO L273 TraceCheckUtils]: 48: Hoare triple {9150#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume i <= n * 4; {9150#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2019-01-31 14:33:01,972 INFO L273 TraceCheckUtils]: 47: Hoare triple {9157#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume a[i] != 23;i := i + 4; {9150#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2019-01-31 14:33:01,972 INFO L273 TraceCheckUtils]: 46: Hoare triple {9157#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume i <= n * 4; {9157#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2019-01-31 14:33:01,973 INFO L273 TraceCheckUtils]: 45: Hoare triple {9164#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume a[i] != 23;i := i + 4; {9157#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2019-01-31 14:33:01,974 INFO L273 TraceCheckUtils]: 44: Hoare triple {9164#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume i <= n * 4; {9164#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2019-01-31 14:33:01,975 INFO L273 TraceCheckUtils]: 43: Hoare triple {9171#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume a[i] != 23;i := i + 4; {9164#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2019-01-31 14:33:01,975 INFO L273 TraceCheckUtils]: 42: Hoare triple {9171#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume i <= n * 4; {9171#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2019-01-31 14:33:01,976 INFO L273 TraceCheckUtils]: 41: Hoare triple {9178#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {9171#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2019-01-31 14:33:01,977 INFO L273 TraceCheckUtils]: 40: Hoare triple {9178#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume i <= n * 4; {9178#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2019-01-31 14:33:01,978 INFO L273 TraceCheckUtils]: 39: Hoare triple {9185#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume a[i] != 23;i := i + 4; {9178#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2019-01-31 14:33:01,978 INFO L273 TraceCheckUtils]: 38: Hoare triple {9185#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume i <= n * 4; {9185#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2019-01-31 14:33:01,979 INFO L273 TraceCheckUtils]: 37: Hoare triple {9192#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {9185#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2019-01-31 14:33:01,980 INFO L273 TraceCheckUtils]: 36: Hoare triple {9192#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume i <= n * 4; {9192#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2019-01-31 14:33:01,981 INFO L273 TraceCheckUtils]: 35: Hoare triple {9199#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {9192#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2019-01-31 14:33:01,982 INFO L273 TraceCheckUtils]: 34: Hoare triple {9199#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume i <= n * 4; {9199#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2019-01-31 14:33:01,983 INFO L273 TraceCheckUtils]: 33: Hoare triple {9206#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {9199#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2019-01-31 14:33:01,983 INFO L273 TraceCheckUtils]: 32: Hoare triple {9206#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume i <= n * 4; {9206#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2019-01-31 14:33:01,984 INFO L273 TraceCheckUtils]: 31: Hoare triple {9213#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} assume a[i] != 23;i := i + 4; {9206#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2019-01-31 14:33:01,985 INFO L273 TraceCheckUtils]: 30: Hoare triple {9213#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} assume i <= n * 4; {9213#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} is VALID [2019-01-31 14:33:01,986 INFO L273 TraceCheckUtils]: 29: Hoare triple {9220#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {9213#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} is VALID [2019-01-31 14:33:01,986 INFO L273 TraceCheckUtils]: 28: Hoare triple {9220#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} assume i <= n * 4; {9220#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} is VALID [2019-01-31 14:33:01,987 INFO L273 TraceCheckUtils]: 27: Hoare triple {9227#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {9220#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} is VALID [2019-01-31 14:33:01,988 INFO L273 TraceCheckUtils]: 26: Hoare triple {9227#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} assume i <= n * 4; {9227#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} is VALID [2019-01-31 14:33:01,989 INFO L273 TraceCheckUtils]: 25: Hoare triple {9234#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} assume a[i] != 23;i := i + 4; {9227#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} is VALID [2019-01-31 14:33:01,990 INFO L273 TraceCheckUtils]: 24: Hoare triple {9234#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} assume i <= n * 4; {9234#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} is VALID [2019-01-31 14:33:01,991 INFO L273 TraceCheckUtils]: 23: Hoare triple {9241#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {9234#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} is VALID [2019-01-31 14:33:01,991 INFO L273 TraceCheckUtils]: 22: Hoare triple {9241#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} assume i <= n * 4; {9241#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} is VALID [2019-01-31 14:33:01,992 INFO L273 TraceCheckUtils]: 21: Hoare triple {9248#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} assume a[i] != 23;i := i + 4; {9241#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} is VALID [2019-01-31 14:33:01,993 INFO L273 TraceCheckUtils]: 20: Hoare triple {9248#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} assume i <= n * 4; {9248#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} is VALID [2019-01-31 14:33:01,994 INFO L273 TraceCheckUtils]: 19: Hoare triple {9255#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} assume a[i] != 23;i := i + 4; {9248#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} is VALID [2019-01-31 14:33:01,994 INFO L273 TraceCheckUtils]: 18: Hoare triple {9255#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} assume i <= n * 4; {9255#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} is VALID [2019-01-31 14:33:01,995 INFO L273 TraceCheckUtils]: 17: Hoare triple {9262#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} assume a[i] != 23;i := i + 4; {9255#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} is VALID [2019-01-31 14:33:01,996 INFO L273 TraceCheckUtils]: 16: Hoare triple {9262#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} assume i <= n * 4; {9262#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} is VALID [2019-01-31 14:33:01,997 INFO L273 TraceCheckUtils]: 15: Hoare triple {9269#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} assume a[i] != 23;i := i + 4; {9262#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} is VALID [2019-01-31 14:33:01,998 INFO L273 TraceCheckUtils]: 14: Hoare triple {9269#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} assume i <= n * 4; {9269#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} is VALID [2019-01-31 14:33:01,999 INFO L273 TraceCheckUtils]: 13: Hoare triple {9276#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} assume a[i] != 23;i := i + 4; {9269#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} is VALID [2019-01-31 14:33:01,999 INFO L273 TraceCheckUtils]: 12: Hoare triple {9276#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} assume i <= n * 4; {9276#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} is VALID [2019-01-31 14:33:02,000 INFO L273 TraceCheckUtils]: 11: Hoare triple {9283#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} assume a[i] != 23;i := i + 4; {9276#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} is VALID [2019-01-31 14:33:02,001 INFO L273 TraceCheckUtils]: 10: Hoare triple {9283#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} assume i <= n * 4; {9283#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} is VALID [2019-01-31 14:33:02,002 INFO L273 TraceCheckUtils]: 9: Hoare triple {9290#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {9283#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} is VALID [2019-01-31 14:33:02,002 INFO L273 TraceCheckUtils]: 8: Hoare triple {9290#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} assume i <= n * 4; {9290#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} is VALID [2019-01-31 14:33:02,003 INFO L273 TraceCheckUtils]: 7: Hoare triple {9297#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {9290#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} is VALID [2019-01-31 14:33:02,004 INFO L273 TraceCheckUtils]: 6: Hoare triple {9297#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} assume i <= n * 4; {9297#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} is VALID [2019-01-31 14:33:02,005 INFO L273 TraceCheckUtils]: 5: Hoare triple {9304#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {9297#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} is VALID [2019-01-31 14:33:02,006 INFO L273 TraceCheckUtils]: 4: Hoare triple {9304#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} assume i <= n * 4; {9304#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} is VALID [2019-01-31 14:33:02,007 INFO L273 TraceCheckUtils]: 3: Hoare triple {9311#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} assume a[i] != 23;i := i + 4; {9304#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} is VALID [2019-01-31 14:33:02,007 INFO L273 TraceCheckUtils]: 2: Hoare triple {9311#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} assume i <= n * 4; {9311#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} is VALID [2019-01-31 14:33:02,008 INFO L273 TraceCheckUtils]: 1: Hoare triple {9318#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {9311#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} is VALID [2019-01-31 14:33:02,009 INFO L273 TraceCheckUtils]: 0: Hoare triple {8922#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {9318#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} is VALID [2019-01-31 14:33:02,021 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 14:33:02,040 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-01-31 14:33:02,040 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [28, 28, 28] total 83 [2019-01-31 14:33:02,040 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-01-31 14:33:02,041 INFO L78 Accepts]: Start accepts. Automaton has 57 states. Word has length 53 [2019-01-31 14:33:02,041 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-01-31 14:33:02,041 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 57 states. [2019-01-31 14:33:02,161 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 14:33:02,162 INFO L459 AbstractCegarLoop]: Interpolant automaton has 57 states [2019-01-31 14:33:02,162 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 57 interpolants. [2019-01-31 14:33:02,163 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=932, Invalid=6208, Unknown=0, NotChecked=0, Total=7140 [2019-01-31 14:33:02,163 INFO L87 Difference]: Start difference. First operand 54 states and 54 transitions. Second operand 57 states. [2019-01-31 14:33:07,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 14:33:07,761 INFO L93 Difference]: Finished difference Result 58 states and 58 transitions. [2019-01-31 14:33:07,762 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2019-01-31 14:33:07,762 INFO L78 Accepts]: Start accepts. Automaton has 57 states. Word has length 53 [2019-01-31 14:33:07,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-31 14:33:07,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states. [2019-01-31 14:33:07,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 58 transitions. [2019-01-31 14:33:07,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states. [2019-01-31 14:33:07,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 58 transitions. [2019-01-31 14:33:07,764 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 30 states and 58 transitions. [2019-01-31 14:33:07,828 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 14:33:07,829 INFO L225 Difference]: With dead ends: 58 [2019-01-31 14:33:07,830 INFO L226 Difference]: Without dead ends: 57 [2019-01-31 14:33:07,830 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 48 SyntacticMatches, 1 SemanticMatches, 83 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1620 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=932, Invalid=6208, Unknown=0, NotChecked=0, Total=7140 [2019-01-31 14:33:07,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2019-01-31 14:33:07,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 56. [2019-01-31 14:33:07,885 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-01-31 14:33:07,885 INFO L82 GeneralOperation]: Start isEquivalent. First operand 57 states. Second operand 56 states. [2019-01-31 14:33:07,886 INFO L74 IsIncluded]: Start isIncluded. First operand 57 states. Second operand 56 states. [2019-01-31 14:33:07,886 INFO L87 Difference]: Start difference. First operand 57 states. Second operand 56 states. [2019-01-31 14:33:07,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 14:33:07,887 INFO L93 Difference]: Finished difference Result 57 states and 57 transitions. [2019-01-31 14:33:07,887 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 57 transitions. [2019-01-31 14:33:07,888 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-31 14:33:07,888 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-01-31 14:33:07,888 INFO L74 IsIncluded]: Start isIncluded. First operand 56 states. Second operand 57 states. [2019-01-31 14:33:07,888 INFO L87 Difference]: Start difference. First operand 56 states. Second operand 57 states. [2019-01-31 14:33:07,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 14:33:07,889 INFO L93 Difference]: Finished difference Result 57 states and 57 transitions. [2019-01-31 14:33:07,889 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 57 transitions. [2019-01-31 14:33:07,889 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-31 14:33:07,889 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-01-31 14:33:07,889 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-01-31 14:33:07,889 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-01-31 14:33:07,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2019-01-31 14:33:07,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 56 transitions. [2019-01-31 14:33:07,890 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 56 transitions. Word has length 53 [2019-01-31 14:33:07,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-31 14:33:07,890 INFO L480 AbstractCegarLoop]: Abstraction has 56 states and 56 transitions. [2019-01-31 14:33:07,890 INFO L481 AbstractCegarLoop]: Interpolant automaton has 57 states. [2019-01-31 14:33:07,890 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 56 transitions. [2019-01-31 14:33:07,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2019-01-31 14:33:07,891 INFO L394 BasicCegarLoop]: Found error trace [2019-01-31 14:33:07,891 INFO L402 BasicCegarLoop]: trace histogram [27, 26, 1, 1] [2019-01-31 14:33:07,891 INFO L423 AbstractCegarLoop]: === Iteration 27 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-01-31 14:33:07,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-31 14:33:07,891 INFO L82 PathProgramCache]: Analyzing trace with hash -735811308, now seen corresponding path program 26 times [2019-01-31 14:33:07,891 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-01-31 14:33:07,892 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-31 14:33:07,892 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-31 14:33:07,892 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-31 14:33:07,892 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-01-31 14:33:07,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-31 14:33:08,225 WARN L181 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 18 [2019-01-31 14:33:09,635 INFO L273 TraceCheckUtils]: 0: Hoare triple {9604#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {9606#(and (or (<= main_n 26) (<= main_i 0)) (or (and (<= 0 main_i) (= 23 (select main_a (* 4 main_n)))) (< 26 main_n)))} is VALID [2019-01-31 14:33:09,636 INFO L273 TraceCheckUtils]: 1: Hoare triple {9606#(and (or (<= main_n 26) (<= main_i 0)) (or (and (<= 0 main_i) (= 23 (select main_a (* 4 main_n)))) (< 26 main_n)))} assume a[i] != 23;i := i + 4; {9607#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i)) (< 26 main_n)) (or (<= main_n 26) (<= main_i 4)))} is VALID [2019-01-31 14:33:09,637 INFO L273 TraceCheckUtils]: 2: Hoare triple {9607#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i)) (< 26 main_n)) (or (<= main_n 26) (<= main_i 4)))} assume i <= n * 4; {9607#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i)) (< 26 main_n)) (or (<= main_n 26) (<= main_i 4)))} is VALID [2019-01-31 14:33:09,638 INFO L273 TraceCheckUtils]: 3: Hoare triple {9607#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i)) (< 26 main_n)) (or (<= main_n 26) (<= main_i 4)))} assume a[i] != 23;i := i + 4; {9608#(and (or (<= main_i 8) (<= main_n 26)) (or (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n)))) (< 26 main_n)))} is VALID [2019-01-31 14:33:09,639 INFO L273 TraceCheckUtils]: 4: Hoare triple {9608#(and (or (<= main_i 8) (<= main_n 26)) (or (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n)))) (< 26 main_n)))} assume i <= n * 4; {9608#(and (or (<= main_i 8) (<= main_n 26)) (or (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n)))) (< 26 main_n)))} is VALID [2019-01-31 14:33:09,640 INFO L273 TraceCheckUtils]: 5: Hoare triple {9608#(and (or (<= main_i 8) (<= main_n 26)) (or (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n)))) (< 26 main_n)))} assume a[i] != 23;i := i + 4; {9609#(and (or (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n)))) (< 26 main_n)) (or (<= main_n 26) (<= main_i 12)))} is VALID [2019-01-31 14:33:09,641 INFO L273 TraceCheckUtils]: 6: Hoare triple {9609#(and (or (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n)))) (< 26 main_n)) (or (<= main_n 26) (<= main_i 12)))} assume i <= n * 4; {9609#(and (or (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n)))) (< 26 main_n)) (or (<= main_n 26) (<= main_i 12)))} is VALID [2019-01-31 14:33:09,642 INFO L273 TraceCheckUtils]: 7: Hoare triple {9609#(and (or (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n)))) (< 26 main_n)) (or (<= main_n 26) (<= main_i 12)))} assume a[i] != 23;i := i + 4; {9610#(and (or (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n)))) (< 26 main_n)) (or (<= main_n 26) (<= main_i 16)))} is VALID [2019-01-31 14:33:09,643 INFO L273 TraceCheckUtils]: 8: Hoare triple {9610#(and (or (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n)))) (< 26 main_n)) (or (<= main_n 26) (<= main_i 16)))} assume i <= n * 4; {9610#(and (or (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n)))) (< 26 main_n)) (or (<= main_n 26) (<= main_i 16)))} is VALID [2019-01-31 14:33:09,644 INFO L273 TraceCheckUtils]: 9: Hoare triple {9610#(and (or (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n)))) (< 26 main_n)) (or (<= main_n 26) (<= main_i 16)))} assume a[i] != 23;i := i + 4; {9611#(and (or (< 26 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 26) (<= main_i 20)))} is VALID [2019-01-31 14:33:09,645 INFO L273 TraceCheckUtils]: 10: Hoare triple {9611#(and (or (< 26 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 26) (<= main_i 20)))} assume i <= n * 4; {9611#(and (or (< 26 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 26) (<= main_i 20)))} is VALID [2019-01-31 14:33:09,646 INFO L273 TraceCheckUtils]: 11: Hoare triple {9611#(and (or (< 26 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 26) (<= main_i 20)))} assume a[i] != 23;i := i + 4; {9612#(and (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 26 main_n)) (or (<= main_n 26) (<= main_i 24)))} is VALID [2019-01-31 14:33:09,646 INFO L273 TraceCheckUtils]: 12: Hoare triple {9612#(and (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 26 main_n)) (or (<= main_n 26) (<= main_i 24)))} assume i <= n * 4; {9612#(and (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 26 main_n)) (or (<= main_n 26) (<= main_i 24)))} is VALID [2019-01-31 14:33:09,647 INFO L273 TraceCheckUtils]: 13: Hoare triple {9612#(and (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 26 main_n)) (or (<= main_n 26) (<= main_i 24)))} assume a[i] != 23;i := i + 4; {9613#(and (or (<= main_n 26) (<= main_i 28)) (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 26 main_n)))} is VALID [2019-01-31 14:33:09,648 INFO L273 TraceCheckUtils]: 14: Hoare triple {9613#(and (or (<= main_n 26) (<= main_i 28)) (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 26 main_n)))} assume i <= n * 4; {9613#(and (or (<= main_n 26) (<= main_i 28)) (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 26 main_n)))} is VALID [2019-01-31 14:33:09,649 INFO L273 TraceCheckUtils]: 15: Hoare triple {9613#(and (or (<= main_n 26) (<= main_i 28)) (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 26 main_n)))} assume a[i] != 23;i := i + 4; {9614#(and (or (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n)))) (< 26 main_n)) (or (<= main_i 32) (<= main_n 26)))} is VALID [2019-01-31 14:33:09,650 INFO L273 TraceCheckUtils]: 16: Hoare triple {9614#(and (or (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n)))) (< 26 main_n)) (or (<= main_i 32) (<= main_n 26)))} assume i <= n * 4; {9614#(and (or (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n)))) (< 26 main_n)) (or (<= main_i 32) (<= main_n 26)))} is VALID [2019-01-31 14:33:09,651 INFO L273 TraceCheckUtils]: 17: Hoare triple {9614#(and (or (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n)))) (< 26 main_n)) (or (<= main_i 32) (<= main_n 26)))} assume a[i] != 23;i := i + 4; {9615#(and (or (<= main_i 36) (<= main_n 26)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i)) (< 26 main_n)))} is VALID [2019-01-31 14:33:09,652 INFO L273 TraceCheckUtils]: 18: Hoare triple {9615#(and (or (<= main_i 36) (<= main_n 26)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i)) (< 26 main_n)))} assume i <= n * 4; {9615#(and (or (<= main_i 36) (<= main_n 26)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i)) (< 26 main_n)))} is VALID [2019-01-31 14:33:09,653 INFO L273 TraceCheckUtils]: 19: Hoare triple {9615#(and (or (<= main_i 36) (<= main_n 26)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i)) (< 26 main_n)))} assume a[i] != 23;i := i + 4; {9616#(and (or (< 26 main_n) (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 40) (<= main_n 26)))} is VALID [2019-01-31 14:33:09,654 INFO L273 TraceCheckUtils]: 20: Hoare triple {9616#(and (or (< 26 main_n) (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 40) (<= main_n 26)))} assume i <= n * 4; {9616#(and (or (< 26 main_n) (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 40) (<= main_n 26)))} is VALID [2019-01-31 14:33:09,655 INFO L273 TraceCheckUtils]: 21: Hoare triple {9616#(and (or (< 26 main_n) (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 40) (<= main_n 26)))} assume a[i] != 23;i := i + 4; {9617#(and (or (<= main_n 26) (<= main_i 44)) (or (< 26 main_n) (and (<= 44 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:33:09,655 INFO L273 TraceCheckUtils]: 22: Hoare triple {9617#(and (or (<= main_n 26) (<= main_i 44)) (or (< 26 main_n) (and (<= 44 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {9617#(and (or (<= main_n 26) (<= main_i 44)) (or (< 26 main_n) (and (<= 44 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:33:09,656 INFO L273 TraceCheckUtils]: 23: Hoare triple {9617#(and (or (<= main_n 26) (<= main_i 44)) (or (< 26 main_n) (and (<= 44 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {9618#(and (or (<= main_n 26) (<= main_i 48)) (or (and (<= 48 main_i) (= 23 (select main_a (* 4 main_n)))) (< 26 main_n)))} is VALID [2019-01-31 14:33:09,657 INFO L273 TraceCheckUtils]: 24: Hoare triple {9618#(and (or (<= main_n 26) (<= main_i 48)) (or (and (<= 48 main_i) (= 23 (select main_a (* 4 main_n)))) (< 26 main_n)))} assume i <= n * 4; {9618#(and (or (<= main_n 26) (<= main_i 48)) (or (and (<= 48 main_i) (= 23 (select main_a (* 4 main_n)))) (< 26 main_n)))} is VALID [2019-01-31 14:33:09,658 INFO L273 TraceCheckUtils]: 25: Hoare triple {9618#(and (or (<= main_n 26) (<= main_i 48)) (or (and (<= 48 main_i) (= 23 (select main_a (* 4 main_n)))) (< 26 main_n)))} assume a[i] != 23;i := i + 4; {9619#(and (or (and (<= 52 main_i) (= 23 (select main_a (* 4 main_n)))) (< 26 main_n)) (or (<= main_i 52) (<= main_n 26)))} is VALID [2019-01-31 14:33:09,659 INFO L273 TraceCheckUtils]: 26: Hoare triple {9619#(and (or (and (<= 52 main_i) (= 23 (select main_a (* 4 main_n)))) (< 26 main_n)) (or (<= main_i 52) (<= main_n 26)))} assume i <= n * 4; {9619#(and (or (and (<= 52 main_i) (= 23 (select main_a (* 4 main_n)))) (< 26 main_n)) (or (<= main_i 52) (<= main_n 26)))} is VALID [2019-01-31 14:33:09,660 INFO L273 TraceCheckUtils]: 27: Hoare triple {9619#(and (or (and (<= 52 main_i) (= 23 (select main_a (* 4 main_n)))) (< 26 main_n)) (or (<= main_i 52) (<= main_n 26)))} assume a[i] != 23;i := i + 4; {9620#(and (or (<= main_n 26) (<= main_i 56)) (or (and (<= 56 main_i) (= 23 (select main_a (* 4 main_n)))) (< 26 main_n)))} is VALID [2019-01-31 14:33:09,661 INFO L273 TraceCheckUtils]: 28: Hoare triple {9620#(and (or (<= main_n 26) (<= main_i 56)) (or (and (<= 56 main_i) (= 23 (select main_a (* 4 main_n)))) (< 26 main_n)))} assume i <= n * 4; {9620#(and (or (<= main_n 26) (<= main_i 56)) (or (and (<= 56 main_i) (= 23 (select main_a (* 4 main_n)))) (< 26 main_n)))} is VALID [2019-01-31 14:33:09,662 INFO L273 TraceCheckUtils]: 29: Hoare triple {9620#(and (or (<= main_n 26) (<= main_i 56)) (or (and (<= 56 main_i) (= 23 (select main_a (* 4 main_n)))) (< 26 main_n)))} assume a[i] != 23;i := i + 4; {9621#(and (or (< 26 main_n) (and (<= 60 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 26) (<= main_i 60)))} is VALID [2019-01-31 14:33:09,663 INFO L273 TraceCheckUtils]: 30: Hoare triple {9621#(and (or (< 26 main_n) (and (<= 60 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 26) (<= main_i 60)))} assume i <= n * 4; {9621#(and (or (< 26 main_n) (and (<= 60 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 26) (<= main_i 60)))} is VALID [2019-01-31 14:33:09,664 INFO L273 TraceCheckUtils]: 31: Hoare triple {9621#(and (or (< 26 main_n) (and (<= 60 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 26) (<= main_i 60)))} assume a[i] != 23;i := i + 4; {9622#(and (or (<= main_n 26) (<= main_i 64)) (or (and (<= 64 main_i) (= 23 (select main_a (* 4 main_n)))) (< 26 main_n)))} is VALID [2019-01-31 14:33:09,664 INFO L273 TraceCheckUtils]: 32: Hoare triple {9622#(and (or (<= main_n 26) (<= main_i 64)) (or (and (<= 64 main_i) (= 23 (select main_a (* 4 main_n)))) (< 26 main_n)))} assume i <= n * 4; {9622#(and (or (<= main_n 26) (<= main_i 64)) (or (and (<= 64 main_i) (= 23 (select main_a (* 4 main_n)))) (< 26 main_n)))} is VALID [2019-01-31 14:33:09,665 INFO L273 TraceCheckUtils]: 33: Hoare triple {9622#(and (or (<= main_n 26) (<= main_i 64)) (or (and (<= 64 main_i) (= 23 (select main_a (* 4 main_n)))) (< 26 main_n)))} assume a[i] != 23;i := i + 4; {9623#(and (or (and (<= 68 main_i) (= 23 (select main_a (* 4 main_n)))) (< 26 main_n)) (or (<= main_n 26) (<= main_i 68)))} is VALID [2019-01-31 14:33:09,666 INFO L273 TraceCheckUtils]: 34: Hoare triple {9623#(and (or (and (<= 68 main_i) (= 23 (select main_a (* 4 main_n)))) (< 26 main_n)) (or (<= main_n 26) (<= main_i 68)))} assume i <= n * 4; {9623#(and (or (and (<= 68 main_i) (= 23 (select main_a (* 4 main_n)))) (< 26 main_n)) (or (<= main_n 26) (<= main_i 68)))} is VALID [2019-01-31 14:33:09,667 INFO L273 TraceCheckUtils]: 35: Hoare triple {9623#(and (or (and (<= 68 main_i) (= 23 (select main_a (* 4 main_n)))) (< 26 main_n)) (or (<= main_n 26) (<= main_i 68)))} assume a[i] != 23;i := i + 4; {9624#(and (or (<= main_n 26) (<= main_i 72)) (or (and (<= 72 main_i) (= 23 (select main_a (* 4 main_n)))) (< 26 main_n)))} is VALID [2019-01-31 14:33:09,668 INFO L273 TraceCheckUtils]: 36: Hoare triple {9624#(and (or (<= main_n 26) (<= main_i 72)) (or (and (<= 72 main_i) (= 23 (select main_a (* 4 main_n)))) (< 26 main_n)))} assume i <= n * 4; {9624#(and (or (<= main_n 26) (<= main_i 72)) (or (and (<= 72 main_i) (= 23 (select main_a (* 4 main_n)))) (< 26 main_n)))} is VALID [2019-01-31 14:33:09,669 INFO L273 TraceCheckUtils]: 37: Hoare triple {9624#(and (or (<= main_n 26) (<= main_i 72)) (or (and (<= 72 main_i) (= 23 (select main_a (* 4 main_n)))) (< 26 main_n)))} assume a[i] != 23;i := i + 4; {9625#(and (or (and (<= 76 main_i) (= 23 (select main_a (* 4 main_n)))) (< 26 main_n)) (or (<= main_i 76) (<= main_n 26)))} is VALID [2019-01-31 14:33:09,670 INFO L273 TraceCheckUtils]: 38: Hoare triple {9625#(and (or (and (<= 76 main_i) (= 23 (select main_a (* 4 main_n)))) (< 26 main_n)) (or (<= main_i 76) (<= main_n 26)))} assume i <= n * 4; {9625#(and (or (and (<= 76 main_i) (= 23 (select main_a (* 4 main_n)))) (< 26 main_n)) (or (<= main_i 76) (<= main_n 26)))} is VALID [2019-01-31 14:33:09,671 INFO L273 TraceCheckUtils]: 39: Hoare triple {9625#(and (or (and (<= 76 main_i) (= 23 (select main_a (* 4 main_n)))) (< 26 main_n)) (or (<= main_i 76) (<= main_n 26)))} assume a[i] != 23;i := i + 4; {9626#(and (or (<= main_n 26) (<= main_i 80)) (or (and (<= 80 main_i) (= 23 (select main_a (* 4 main_n)))) (< 26 main_n)))} is VALID [2019-01-31 14:33:09,672 INFO L273 TraceCheckUtils]: 40: Hoare triple {9626#(and (or (<= main_n 26) (<= main_i 80)) (or (and (<= 80 main_i) (= 23 (select main_a (* 4 main_n)))) (< 26 main_n)))} assume i <= n * 4; {9626#(and (or (<= main_n 26) (<= main_i 80)) (or (and (<= 80 main_i) (= 23 (select main_a (* 4 main_n)))) (< 26 main_n)))} is VALID [2019-01-31 14:33:09,673 INFO L273 TraceCheckUtils]: 41: Hoare triple {9626#(and (or (<= main_n 26) (<= main_i 80)) (or (and (<= 80 main_i) (= 23 (select main_a (* 4 main_n)))) (< 26 main_n)))} assume a[i] != 23;i := i + 4; {9627#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 84 main_i)) (< 26 main_n)) (or (<= main_i 84) (<= main_n 26)))} is VALID [2019-01-31 14:33:09,674 INFO L273 TraceCheckUtils]: 42: Hoare triple {9627#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 84 main_i)) (< 26 main_n)) (or (<= main_i 84) (<= main_n 26)))} assume i <= n * 4; {9627#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 84 main_i)) (< 26 main_n)) (or (<= main_i 84) (<= main_n 26)))} is VALID [2019-01-31 14:33:09,675 INFO L273 TraceCheckUtils]: 43: Hoare triple {9627#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 84 main_i)) (< 26 main_n)) (or (<= main_i 84) (<= main_n 26)))} assume a[i] != 23;i := i + 4; {9628#(and (or (and (<= 88 main_i) (= 23 (select main_a (* 4 main_n)))) (< 26 main_n)) (or (<= main_i 88) (<= main_n 26)))} is VALID [2019-01-31 14:33:09,675 INFO L273 TraceCheckUtils]: 44: Hoare triple {9628#(and (or (and (<= 88 main_i) (= 23 (select main_a (* 4 main_n)))) (< 26 main_n)) (or (<= main_i 88) (<= main_n 26)))} assume i <= n * 4; {9628#(and (or (and (<= 88 main_i) (= 23 (select main_a (* 4 main_n)))) (< 26 main_n)) (or (<= main_i 88) (<= main_n 26)))} is VALID [2019-01-31 14:33:09,676 INFO L273 TraceCheckUtils]: 45: Hoare triple {9628#(and (or (and (<= 88 main_i) (= 23 (select main_a (* 4 main_n)))) (< 26 main_n)) (or (<= main_i 88) (<= main_n 26)))} assume a[i] != 23;i := i + 4; {9629#(and (or (<= main_i 92) (<= main_n 26)) (or (< 26 main_n) (and (<= 92 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:33:09,677 INFO L273 TraceCheckUtils]: 46: Hoare triple {9629#(and (or (<= main_i 92) (<= main_n 26)) (or (< 26 main_n) (and (<= 92 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {9629#(and (or (<= main_i 92) (<= main_n 26)) (or (< 26 main_n) (and (<= 92 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:33:09,678 INFO L273 TraceCheckUtils]: 47: Hoare triple {9629#(and (or (<= main_i 92) (<= main_n 26)) (or (< 26 main_n) (and (<= 92 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {9630#(and (or (and (<= 96 main_i) (= 23 (select main_a (* 4 main_n)))) (< 26 main_n)) (or (<= main_i 96) (<= main_n 26)))} is VALID [2019-01-31 14:33:09,679 INFO L273 TraceCheckUtils]: 48: Hoare triple {9630#(and (or (and (<= 96 main_i) (= 23 (select main_a (* 4 main_n)))) (< 26 main_n)) (or (<= main_i 96) (<= main_n 26)))} assume i <= n * 4; {9630#(and (or (and (<= 96 main_i) (= 23 (select main_a (* 4 main_n)))) (< 26 main_n)) (or (<= main_i 96) (<= main_n 26)))} is VALID [2019-01-31 14:33:09,680 INFO L273 TraceCheckUtils]: 49: Hoare triple {9630#(and (or (and (<= 96 main_i) (= 23 (select main_a (* 4 main_n)))) (< 26 main_n)) (or (<= main_i 96) (<= main_n 26)))} assume a[i] != 23;i := i + 4; {9631#(and (or (<= main_i 100) (<= main_n 26)) (or (and (<= 100 main_i) (= 23 (select main_a (* 4 main_n)))) (< 26 main_n)))} is VALID [2019-01-31 14:33:09,681 INFO L273 TraceCheckUtils]: 50: Hoare triple {9631#(and (or (<= main_i 100) (<= main_n 26)) (or (and (<= 100 main_i) (= 23 (select main_a (* 4 main_n)))) (< 26 main_n)))} assume i <= n * 4; {9631#(and (or (<= main_i 100) (<= main_n 26)) (or (and (<= 100 main_i) (= 23 (select main_a (* 4 main_n)))) (< 26 main_n)))} is VALID [2019-01-31 14:33:09,682 INFO L273 TraceCheckUtils]: 51: Hoare triple {9631#(and (or (<= main_i 100) (<= main_n 26)) (or (and (<= 100 main_i) (= 23 (select main_a (* 4 main_n)))) (< 26 main_n)))} assume a[i] != 23;i := i + 4; {9632#(and (or (<= main_i 104) (<= main_n 26)) (or (and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (<= (* 4 main_n) main_i)) (< 26 main_n)))} is VALID [2019-01-31 14:33:09,683 INFO L273 TraceCheckUtils]: 52: Hoare triple {9632#(and (or (<= main_i 104) (<= main_n 26)) (or (and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (<= (* 4 main_n) main_i)) (< 26 main_n)))} assume i <= n * 4; {9633#(and (<= main_i 104) (or (< 26 main_n) (and (<= (* 4 main_n) main_i) (<= main_i (* 4 main_n)) (= 23 (select main_a main_i)))))} is VALID [2019-01-31 14:33:09,684 INFO L273 TraceCheckUtils]: 53: Hoare triple {9633#(and (<= main_i 104) (or (< 26 main_n) (and (<= (* 4 main_n) main_i) (<= main_i (* 4 main_n)) (= 23 (select main_a main_i)))))} assume a[i] != 23;i := i + 4; {9634#(and (< 26 main_n) (<= main_i 108))} is VALID [2019-01-31 14:33:09,685 INFO L273 TraceCheckUtils]: 54: Hoare triple {9634#(and (< 26 main_n) (<= main_i 108))} assume !(i <= n * 4); {9605#false} is VALID [2019-01-31 14:33:09,700 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 14:33:09,700 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-31 14:33:09,701 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-01-31 14:33:09,701 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-01-31 14:33:09,701 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-01-31 14:33:09,701 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-31 14:33:09,701 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 14:33:09,709 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2019-01-31 14:33:09,709 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST2 (IT: FPandBP) [2019-01-31 14:33:09,742 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 27 check-sat command(s) [2019-01-31 14:33:09,742 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-01-31 14:33:09,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-31 14:33:09,752 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-31 14:33:09,761 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 14:33:09,766 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-01-31 14:33:09,773 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-31 14:33:09,773 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2019-01-31 14:33:09,776 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-01-31 14:33:09,776 WARN L398 uantifierElimination]: Input elimination task: ∃ [v_main_a_30]. (and (= (store v_main_a_30 (* 4 main_n) 23) main_a) (= main_i 0)) [2019-01-31 14:33:09,776 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2019-01-31 14:33:11,114 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2019-01-31 14:33:11,116 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-01-31 14:33:11,123 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-31 14:33:11,123 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2019-01-31 14:33:11,125 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-01-31 14:33:11,126 WARN L398 uantifierElimination]: Input elimination task: ∃ [main_a]. (let ((.cse0 (* 4 main_n))) (and (not (= 23 (select main_a 104))) (<= 104 .cse0) (= 23 (select main_a .cse0)) (<= main_i 108))) [2019-01-31 14:33:11,126 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (let ((.cse0 (* 4 main_n))) (and (<= 104 .cse0) (not (= 104 .cse0)) (<= main_i 108))) [2019-01-31 14:33:11,162 INFO L273 TraceCheckUtils]: 0: Hoare triple {9604#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {9638#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:11,163 INFO L273 TraceCheckUtils]: 1: Hoare triple {9638#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {9642#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2019-01-31 14:33:11,163 INFO L273 TraceCheckUtils]: 2: Hoare triple {9642#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume i <= n * 4; {9642#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2019-01-31 14:33:11,164 INFO L273 TraceCheckUtils]: 3: Hoare triple {9642#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume a[i] != 23;i := i + 4; {9649#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:11,165 INFO L273 TraceCheckUtils]: 4: Hoare triple {9649#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {9649#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:11,165 INFO L273 TraceCheckUtils]: 5: Hoare triple {9649#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {9656#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2019-01-31 14:33:11,166 INFO L273 TraceCheckUtils]: 6: Hoare triple {9656#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume i <= n * 4; {9656#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2019-01-31 14:33:11,167 INFO L273 TraceCheckUtils]: 7: Hoare triple {9656#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume a[i] != 23;i := i + 4; {9663#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:11,168 INFO L273 TraceCheckUtils]: 8: Hoare triple {9663#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {9663#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:11,168 INFO L273 TraceCheckUtils]: 9: Hoare triple {9663#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {9670#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:11,169 INFO L273 TraceCheckUtils]: 10: Hoare triple {9670#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {9670#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:11,170 INFO L273 TraceCheckUtils]: 11: Hoare triple {9670#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {9677#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:11,170 INFO L273 TraceCheckUtils]: 12: Hoare triple {9677#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {9677#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:11,171 INFO L273 TraceCheckUtils]: 13: Hoare triple {9677#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {9684#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:11,172 INFO L273 TraceCheckUtils]: 14: Hoare triple {9684#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {9684#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:11,173 INFO L273 TraceCheckUtils]: 15: Hoare triple {9684#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {9691#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:11,173 INFO L273 TraceCheckUtils]: 16: Hoare triple {9691#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {9691#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:11,174 INFO L273 TraceCheckUtils]: 17: Hoare triple {9691#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {9698#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:11,175 INFO L273 TraceCheckUtils]: 18: Hoare triple {9698#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {9698#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:11,175 INFO L273 TraceCheckUtils]: 19: Hoare triple {9698#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {9705#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:11,176 INFO L273 TraceCheckUtils]: 20: Hoare triple {9705#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {9705#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:11,177 INFO L273 TraceCheckUtils]: 21: Hoare triple {9705#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {9712#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:11,177 INFO L273 TraceCheckUtils]: 22: Hoare triple {9712#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {9712#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:11,178 INFO L273 TraceCheckUtils]: 23: Hoare triple {9712#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {9719#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:11,179 INFO L273 TraceCheckUtils]: 24: Hoare triple {9719#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {9719#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:11,179 INFO L273 TraceCheckUtils]: 25: Hoare triple {9719#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {9726#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:11,180 INFO L273 TraceCheckUtils]: 26: Hoare triple {9726#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {9726#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:11,181 INFO L273 TraceCheckUtils]: 27: Hoare triple {9726#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {9733#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:11,181 INFO L273 TraceCheckUtils]: 28: Hoare triple {9733#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {9733#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:11,182 INFO L273 TraceCheckUtils]: 29: Hoare triple {9733#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {9740#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:11,183 INFO L273 TraceCheckUtils]: 30: Hoare triple {9740#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {9740#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:11,184 INFO L273 TraceCheckUtils]: 31: Hoare triple {9740#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {9747#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:11,184 INFO L273 TraceCheckUtils]: 32: Hoare triple {9747#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {9747#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:11,185 INFO L273 TraceCheckUtils]: 33: Hoare triple {9747#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {9754#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:11,186 INFO L273 TraceCheckUtils]: 34: Hoare triple {9754#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {9754#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:11,187 INFO L273 TraceCheckUtils]: 35: Hoare triple {9754#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {9761#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:11,187 INFO L273 TraceCheckUtils]: 36: Hoare triple {9761#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {9761#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:11,188 INFO L273 TraceCheckUtils]: 37: Hoare triple {9761#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {9768#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:11,189 INFO L273 TraceCheckUtils]: 38: Hoare triple {9768#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {9768#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:11,190 INFO L273 TraceCheckUtils]: 39: Hoare triple {9768#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {9775#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} is VALID [2019-01-31 14:33:11,190 INFO L273 TraceCheckUtils]: 40: Hoare triple {9775#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} assume i <= n * 4; {9775#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} is VALID [2019-01-31 14:33:11,191 INFO L273 TraceCheckUtils]: 41: Hoare triple {9775#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} assume a[i] != 23;i := i + 4; {9782#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:11,192 INFO L273 TraceCheckUtils]: 42: Hoare triple {9782#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {9782#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:11,193 INFO L273 TraceCheckUtils]: 43: Hoare triple {9782#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {9789#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:11,193 INFO L273 TraceCheckUtils]: 44: Hoare triple {9789#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {9789#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:11,194 INFO L273 TraceCheckUtils]: 45: Hoare triple {9789#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {9796#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:11,195 INFO L273 TraceCheckUtils]: 46: Hoare triple {9796#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {9796#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:11,195 INFO L273 TraceCheckUtils]: 47: Hoare triple {9796#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {9803#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:11,196 INFO L273 TraceCheckUtils]: 48: Hoare triple {9803#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {9803#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:11,197 INFO L273 TraceCheckUtils]: 49: Hoare triple {9803#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {9810#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:11,198 INFO L273 TraceCheckUtils]: 50: Hoare triple {9810#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {9810#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:11,198 INFO L273 TraceCheckUtils]: 51: Hoare triple {9810#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {9817#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:11,199 INFO L273 TraceCheckUtils]: 52: Hoare triple {9817#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {9821#(and (<= main_i (* 4 main_n)) (= main_i 104) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:11,200 INFO L273 TraceCheckUtils]: 53: Hoare triple {9821#(and (<= main_i (* 4 main_n)) (= main_i 104) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {9634#(and (< 26 main_n) (<= main_i 108))} is VALID [2019-01-31 14:33:11,201 INFO L273 TraceCheckUtils]: 54: Hoare triple {9634#(and (< 26 main_n) (<= main_i 108))} assume !(i <= n * 4); {9605#false} is VALID [2019-01-31 14:33:11,209 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 14:33:11,209 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2019-01-31 14:33:13,492 INFO L273 TraceCheckUtils]: 54: Hoare triple {9828#(<= main_i (* 4 main_n))} assume !(i <= n * 4); {9605#false} is VALID [2019-01-31 14:33:13,493 INFO L273 TraceCheckUtils]: 53: Hoare triple {9832#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} assume a[i] != 23;i := i + 4; {9828#(<= main_i (* 4 main_n))} is VALID [2019-01-31 14:33:13,494 INFO L273 TraceCheckUtils]: 52: Hoare triple {9836#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} assume i <= n * 4; {9832#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} is VALID [2019-01-31 14:33:13,495 INFO L273 TraceCheckUtils]: 51: Hoare triple {9840#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume a[i] != 23;i := i + 4; {9836#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} is VALID [2019-01-31 14:33:13,496 INFO L273 TraceCheckUtils]: 50: Hoare triple {9840#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume i <= n * 4; {9840#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2019-01-31 14:33:13,497 INFO L273 TraceCheckUtils]: 49: Hoare triple {9847#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume a[i] != 23;i := i + 4; {9840#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2019-01-31 14:33:13,497 INFO L273 TraceCheckUtils]: 48: Hoare triple {9847#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume i <= n * 4; {9847#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2019-01-31 14:33:13,498 INFO L273 TraceCheckUtils]: 47: Hoare triple {9854#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume a[i] != 23;i := i + 4; {9847#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2019-01-31 14:33:13,499 INFO L273 TraceCheckUtils]: 46: Hoare triple {9854#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume i <= n * 4; {9854#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2019-01-31 14:33:13,500 INFO L273 TraceCheckUtils]: 45: Hoare triple {9861#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume a[i] != 23;i := i + 4; {9854#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2019-01-31 14:33:13,500 INFO L273 TraceCheckUtils]: 44: Hoare triple {9861#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume i <= n * 4; {9861#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2019-01-31 14:33:13,501 INFO L273 TraceCheckUtils]: 43: Hoare triple {9868#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {9861#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2019-01-31 14:33:13,502 INFO L273 TraceCheckUtils]: 42: Hoare triple {9868#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume i <= n * 4; {9868#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2019-01-31 14:33:13,503 INFO L273 TraceCheckUtils]: 41: Hoare triple {9875#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume a[i] != 23;i := i + 4; {9868#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2019-01-31 14:33:13,504 INFO L273 TraceCheckUtils]: 40: Hoare triple {9875#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume i <= n * 4; {9875#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2019-01-31 14:33:13,505 INFO L273 TraceCheckUtils]: 39: Hoare triple {9882#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {9875#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2019-01-31 14:33:13,505 INFO L273 TraceCheckUtils]: 38: Hoare triple {9882#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume i <= n * 4; {9882#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2019-01-31 14:33:13,506 INFO L273 TraceCheckUtils]: 37: Hoare triple {9889#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {9882#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2019-01-31 14:33:13,507 INFO L273 TraceCheckUtils]: 36: Hoare triple {9889#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume i <= n * 4; {9889#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2019-01-31 14:33:13,508 INFO L273 TraceCheckUtils]: 35: Hoare triple {9896#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {9889#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2019-01-31 14:33:13,508 INFO L273 TraceCheckUtils]: 34: Hoare triple {9896#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume i <= n * 4; {9896#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2019-01-31 14:33:13,510 INFO L273 TraceCheckUtils]: 33: Hoare triple {9903#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} assume a[i] != 23;i := i + 4; {9896#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2019-01-31 14:33:13,510 INFO L273 TraceCheckUtils]: 32: Hoare triple {9903#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} assume i <= n * 4; {9903#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} is VALID [2019-01-31 14:33:13,511 INFO L273 TraceCheckUtils]: 31: Hoare triple {9910#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {9903#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} is VALID [2019-01-31 14:33:13,512 INFO L273 TraceCheckUtils]: 30: Hoare triple {9910#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} assume i <= n * 4; {9910#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} is VALID [2019-01-31 14:33:13,513 INFO L273 TraceCheckUtils]: 29: Hoare triple {9917#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {9910#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} is VALID [2019-01-31 14:33:13,513 INFO L273 TraceCheckUtils]: 28: Hoare triple {9917#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} assume i <= n * 4; {9917#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} is VALID [2019-01-31 14:33:13,514 INFO L273 TraceCheckUtils]: 27: Hoare triple {9924#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} assume a[i] != 23;i := i + 4; {9917#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} is VALID [2019-01-31 14:33:13,515 INFO L273 TraceCheckUtils]: 26: Hoare triple {9924#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} assume i <= n * 4; {9924#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} is VALID [2019-01-31 14:33:13,516 INFO L273 TraceCheckUtils]: 25: Hoare triple {9931#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {9924#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} is VALID [2019-01-31 14:33:13,516 INFO L273 TraceCheckUtils]: 24: Hoare triple {9931#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} assume i <= n * 4; {9931#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} is VALID [2019-01-31 14:33:13,517 INFO L273 TraceCheckUtils]: 23: Hoare triple {9938#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} assume a[i] != 23;i := i + 4; {9931#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} is VALID [2019-01-31 14:33:13,518 INFO L273 TraceCheckUtils]: 22: Hoare triple {9938#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} assume i <= n * 4; {9938#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} is VALID [2019-01-31 14:33:13,519 INFO L273 TraceCheckUtils]: 21: Hoare triple {9945#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} assume a[i] != 23;i := i + 4; {9938#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} is VALID [2019-01-31 14:33:13,520 INFO L273 TraceCheckUtils]: 20: Hoare triple {9945#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} assume i <= n * 4; {9945#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} is VALID [2019-01-31 14:33:13,521 INFO L273 TraceCheckUtils]: 19: Hoare triple {9952#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} assume a[i] != 23;i := i + 4; {9945#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} is VALID [2019-01-31 14:33:13,521 INFO L273 TraceCheckUtils]: 18: Hoare triple {9952#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} assume i <= n * 4; {9952#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} is VALID [2019-01-31 14:33:13,522 INFO L273 TraceCheckUtils]: 17: Hoare triple {9959#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} assume a[i] != 23;i := i + 4; {9952#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} is VALID [2019-01-31 14:33:13,523 INFO L273 TraceCheckUtils]: 16: Hoare triple {9959#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} assume i <= n * 4; {9959#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} is VALID [2019-01-31 14:33:13,524 INFO L273 TraceCheckUtils]: 15: Hoare triple {9966#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} assume a[i] != 23;i := i + 4; {9959#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} is VALID [2019-01-31 14:33:13,524 INFO L273 TraceCheckUtils]: 14: Hoare triple {9966#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} assume i <= n * 4; {9966#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} is VALID [2019-01-31 14:33:13,525 INFO L273 TraceCheckUtils]: 13: Hoare triple {9973#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} assume a[i] != 23;i := i + 4; {9966#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} is VALID [2019-01-31 14:33:13,526 INFO L273 TraceCheckUtils]: 12: Hoare triple {9973#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} assume i <= n * 4; {9973#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} is VALID [2019-01-31 14:33:13,527 INFO L273 TraceCheckUtils]: 11: Hoare triple {9980#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {9973#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} is VALID [2019-01-31 14:33:13,528 INFO L273 TraceCheckUtils]: 10: Hoare triple {9980#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} assume i <= n * 4; {9980#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} is VALID [2019-01-31 14:33:13,529 INFO L273 TraceCheckUtils]: 9: Hoare triple {9987#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {9980#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} is VALID [2019-01-31 14:33:13,529 INFO L273 TraceCheckUtils]: 8: Hoare triple {9987#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} assume i <= n * 4; {9987#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} is VALID [2019-01-31 14:33:13,530 INFO L273 TraceCheckUtils]: 7: Hoare triple {9994#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {9987#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} is VALID [2019-01-31 14:33:13,531 INFO L273 TraceCheckUtils]: 6: Hoare triple {9994#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} assume i <= n * 4; {9994#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} is VALID [2019-01-31 14:33:13,532 INFO L273 TraceCheckUtils]: 5: Hoare triple {10001#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} assume a[i] != 23;i := i + 4; {9994#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} is VALID [2019-01-31 14:33:13,532 INFO L273 TraceCheckUtils]: 4: Hoare triple {10001#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} assume i <= n * 4; {10001#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} is VALID [2019-01-31 14:33:13,533 INFO L273 TraceCheckUtils]: 3: Hoare triple {10008#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {10001#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} is VALID [2019-01-31 14:33:13,534 INFO L273 TraceCheckUtils]: 2: Hoare triple {10008#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} assume i <= n * 4; {10008#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} is VALID [2019-01-31 14:33:13,535 INFO L273 TraceCheckUtils]: 1: Hoare triple {10015#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} assume a[i] != 23;i := i + 4; {10008#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} is VALID [2019-01-31 14:33:13,536 INFO L273 TraceCheckUtils]: 0: Hoare triple {9604#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {10015#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} is VALID [2019-01-31 14:33:13,549 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 14:33:13,567 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-01-31 14:33:13,567 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [29, 29, 29] total 86 [2019-01-31 14:33:13,568 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-01-31 14:33:13,568 INFO L78 Accepts]: Start accepts. Automaton has 59 states. Word has length 55 [2019-01-31 14:33:13,568 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-01-31 14:33:13,568 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 59 states. [2019-01-31 14:33:13,694 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 109 edges. 109 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-01-31 14:33:13,694 INFO L459 AbstractCegarLoop]: Interpolant automaton has 59 states [2019-01-31 14:33:13,695 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 59 interpolants. [2019-01-31 14:33:13,695 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=994, Invalid=6662, Unknown=0, NotChecked=0, Total=7656 [2019-01-31 14:33:13,696 INFO L87 Difference]: Start difference. First operand 56 states and 56 transitions. Second operand 59 states. [2019-01-31 14:33:17,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 14:33:17,566 INFO L93 Difference]: Finished difference Result 60 states and 60 transitions. [2019-01-31 14:33:17,566 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2019-01-31 14:33:17,566 INFO L78 Accepts]: Start accepts. Automaton has 59 states. Word has length 55 [2019-01-31 14:33:17,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-31 14:33:17,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2019-01-31 14:33:17,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 60 transitions. [2019-01-31 14:33:17,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2019-01-31 14:33:17,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 60 transitions. [2019-01-31 14:33:17,568 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 31 states and 60 transitions. [2019-01-31 14:33:17,630 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 14:33:17,632 INFO L225 Difference]: With dead ends: 60 [2019-01-31 14:33:17,632 INFO L226 Difference]: Without dead ends: 59 [2019-01-31 14:33:17,632 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 50 SyntacticMatches, 1 SemanticMatches, 86 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1736 ImplicationChecksByTransitivity, 4.8s TimeCoverageRelationStatistics Valid=994, Invalid=6662, Unknown=0, NotChecked=0, Total=7656 [2019-01-31 14:33:17,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2019-01-31 14:33:17,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 58. [2019-01-31 14:33:17,682 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-01-31 14:33:17,682 INFO L82 GeneralOperation]: Start isEquivalent. First operand 59 states. Second operand 58 states. [2019-01-31 14:33:17,683 INFO L74 IsIncluded]: Start isIncluded. First operand 59 states. Second operand 58 states. [2019-01-31 14:33:17,683 INFO L87 Difference]: Start difference. First operand 59 states. Second operand 58 states. [2019-01-31 14:33:17,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 14:33:17,684 INFO L93 Difference]: Finished difference Result 59 states and 59 transitions. [2019-01-31 14:33:17,684 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 59 transitions. [2019-01-31 14:33:17,684 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-31 14:33:17,684 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-01-31 14:33:17,685 INFO L74 IsIncluded]: Start isIncluded. First operand 58 states. Second operand 59 states. [2019-01-31 14:33:17,685 INFO L87 Difference]: Start difference. First operand 58 states. Second operand 59 states. [2019-01-31 14:33:17,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 14:33:17,686 INFO L93 Difference]: Finished difference Result 59 states and 59 transitions. [2019-01-31 14:33:17,686 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 59 transitions. [2019-01-31 14:33:17,686 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-31 14:33:17,686 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-01-31 14:33:17,686 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-01-31 14:33:17,687 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-01-31 14:33:17,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2019-01-31 14:33:17,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 58 transitions. [2019-01-31 14:33:17,688 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 58 transitions. Word has length 55 [2019-01-31 14:33:17,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-31 14:33:17,688 INFO L480 AbstractCegarLoop]: Abstraction has 58 states and 58 transitions. [2019-01-31 14:33:17,688 INFO L481 AbstractCegarLoop]: Interpolant automaton has 59 states. [2019-01-31 14:33:17,688 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 58 transitions. [2019-01-31 14:33:17,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2019-01-31 14:33:17,689 INFO L394 BasicCegarLoop]: Found error trace [2019-01-31 14:33:17,689 INFO L402 BasicCegarLoop]: trace histogram [28, 27, 1, 1] [2019-01-31 14:33:17,689 INFO L423 AbstractCegarLoop]: === Iteration 28 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-01-31 14:33:17,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-31 14:33:17,689 INFO L82 PathProgramCache]: Analyzing trace with hash 1554937942, now seen corresponding path program 27 times [2019-01-31 14:33:17,689 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-01-31 14:33:17,690 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-31 14:33:17,690 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-01-31 14:33:17,690 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-31 14:33:17,690 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-01-31 14:33:17,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-31 14:33:19,120 INFO L273 TraceCheckUtils]: 0: Hoare triple {10311#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {10313#(and (or (and (<= 0 main_i) (= 23 (select main_a (* 4 main_n)))) (< 27 main_n)) (or (<= main_i 0) (<= main_n 27)))} is VALID [2019-01-31 14:33:19,121 INFO L273 TraceCheckUtils]: 1: Hoare triple {10313#(and (or (and (<= 0 main_i) (= 23 (select main_a (* 4 main_n)))) (< 27 main_n)) (or (<= main_i 0) (<= main_n 27)))} assume a[i] != 23;i := i + 4; {10314#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i)) (< 27 main_n)) (or (<= main_n 27) (<= main_i 4)))} is VALID [2019-01-31 14:33:19,123 INFO L273 TraceCheckUtils]: 2: Hoare triple {10314#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i)) (< 27 main_n)) (or (<= main_n 27) (<= main_i 4)))} assume i <= n * 4; {10314#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i)) (< 27 main_n)) (or (<= main_n 27) (<= main_i 4)))} is VALID [2019-01-31 14:33:19,124 INFO L273 TraceCheckUtils]: 3: Hoare triple {10314#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i)) (< 27 main_n)) (or (<= main_n 27) (<= main_i 4)))} assume a[i] != 23;i := i + 4; {10315#(and (or (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n)))) (< 27 main_n)) (or (<= main_i 8) (<= main_n 27)))} is VALID [2019-01-31 14:33:19,125 INFO L273 TraceCheckUtils]: 4: Hoare triple {10315#(and (or (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n)))) (< 27 main_n)) (or (<= main_i 8) (<= main_n 27)))} assume i <= n * 4; {10315#(and (or (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n)))) (< 27 main_n)) (or (<= main_i 8) (<= main_n 27)))} is VALID [2019-01-31 14:33:19,126 INFO L273 TraceCheckUtils]: 5: Hoare triple {10315#(and (or (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n)))) (< 27 main_n)) (or (<= main_i 8) (<= main_n 27)))} assume a[i] != 23;i := i + 4; {10316#(and (or (<= main_n 27) (<= main_i 12)) (or (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n)))) (< 27 main_n)))} is VALID [2019-01-31 14:33:19,127 INFO L273 TraceCheckUtils]: 6: Hoare triple {10316#(and (or (<= main_n 27) (<= main_i 12)) (or (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n)))) (< 27 main_n)))} assume i <= n * 4; {10316#(and (or (<= main_n 27) (<= main_i 12)) (or (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n)))) (< 27 main_n)))} is VALID [2019-01-31 14:33:19,128 INFO L273 TraceCheckUtils]: 7: Hoare triple {10316#(and (or (<= main_n 27) (<= main_i 12)) (or (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n)))) (< 27 main_n)))} assume a[i] != 23;i := i + 4; {10317#(and (or (<= main_n 27) (<= main_i 16)) (or (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n)))) (< 27 main_n)))} is VALID [2019-01-31 14:33:19,129 INFO L273 TraceCheckUtils]: 8: Hoare triple {10317#(and (or (<= main_n 27) (<= main_i 16)) (or (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n)))) (< 27 main_n)))} assume i <= n * 4; {10317#(and (or (<= main_n 27) (<= main_i 16)) (or (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n)))) (< 27 main_n)))} is VALID [2019-01-31 14:33:19,130 INFO L273 TraceCheckUtils]: 9: Hoare triple {10317#(and (or (<= main_n 27) (<= main_i 16)) (or (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n)))) (< 27 main_n)))} assume a[i] != 23;i := i + 4; {10318#(and (or (< 27 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 20) (<= main_n 27)))} is VALID [2019-01-31 14:33:19,131 INFO L273 TraceCheckUtils]: 10: Hoare triple {10318#(and (or (< 27 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 20) (<= main_n 27)))} assume i <= n * 4; {10318#(and (or (< 27 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 20) (<= main_n 27)))} is VALID [2019-01-31 14:33:19,132 INFO L273 TraceCheckUtils]: 11: Hoare triple {10318#(and (or (< 27 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 20) (<= main_n 27)))} assume a[i] != 23;i := i + 4; {10319#(and (or (<= main_i 24) (<= main_n 27)) (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 27 main_n)))} is VALID [2019-01-31 14:33:19,133 INFO L273 TraceCheckUtils]: 12: Hoare triple {10319#(and (or (<= main_i 24) (<= main_n 27)) (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 27 main_n)))} assume i <= n * 4; {10319#(and (or (<= main_i 24) (<= main_n 27)) (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 27 main_n)))} is VALID [2019-01-31 14:33:19,134 INFO L273 TraceCheckUtils]: 13: Hoare triple {10319#(and (or (<= main_i 24) (<= main_n 27)) (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 27 main_n)))} assume a[i] != 23;i := i + 4; {10320#(and (or (<= main_n 27) (<= main_i 28)) (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 27 main_n)))} is VALID [2019-01-31 14:33:19,135 INFO L273 TraceCheckUtils]: 14: Hoare triple {10320#(and (or (<= main_n 27) (<= main_i 28)) (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 27 main_n)))} assume i <= n * 4; {10320#(and (or (<= main_n 27) (<= main_i 28)) (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 27 main_n)))} is VALID [2019-01-31 14:33:19,136 INFO L273 TraceCheckUtils]: 15: Hoare triple {10320#(and (or (<= main_n 27) (<= main_i 28)) (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 27 main_n)))} assume a[i] != 23;i := i + 4; {10321#(and (or (<= main_i 32) (<= main_n 27)) (or (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n)))) (< 27 main_n)))} is VALID [2019-01-31 14:33:19,137 INFO L273 TraceCheckUtils]: 16: Hoare triple {10321#(and (or (<= main_i 32) (<= main_n 27)) (or (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n)))) (< 27 main_n)))} assume i <= n * 4; {10321#(and (or (<= main_i 32) (<= main_n 27)) (or (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n)))) (< 27 main_n)))} is VALID [2019-01-31 14:33:19,138 INFO L273 TraceCheckUtils]: 17: Hoare triple {10321#(and (or (<= main_i 32) (<= main_n 27)) (or (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n)))) (< 27 main_n)))} assume a[i] != 23;i := i + 4; {10322#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i)) (< 27 main_n)) (or (<= main_i 36) (<= main_n 27)))} is VALID [2019-01-31 14:33:19,139 INFO L273 TraceCheckUtils]: 18: Hoare triple {10322#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i)) (< 27 main_n)) (or (<= main_i 36) (<= main_n 27)))} assume i <= n * 4; {10322#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i)) (< 27 main_n)) (or (<= main_i 36) (<= main_n 27)))} is VALID [2019-01-31 14:33:19,140 INFO L273 TraceCheckUtils]: 19: Hoare triple {10322#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i)) (< 27 main_n)) (or (<= main_i 36) (<= main_n 27)))} assume a[i] != 23;i := i + 4; {10323#(and (or (<= main_i 40) (<= main_n 27)) (or (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n)))) (< 27 main_n)))} is VALID [2019-01-31 14:33:19,141 INFO L273 TraceCheckUtils]: 20: Hoare triple {10323#(and (or (<= main_i 40) (<= main_n 27)) (or (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n)))) (< 27 main_n)))} assume i <= n * 4; {10323#(and (or (<= main_i 40) (<= main_n 27)) (or (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n)))) (< 27 main_n)))} is VALID [2019-01-31 14:33:19,142 INFO L273 TraceCheckUtils]: 21: Hoare triple {10323#(and (or (<= main_i 40) (<= main_n 27)) (or (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n)))) (< 27 main_n)))} assume a[i] != 23;i := i + 4; {10324#(and (or (< 27 main_n) (and (<= 44 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 27) (<= main_i 44)))} is VALID [2019-01-31 14:33:19,143 INFO L273 TraceCheckUtils]: 22: Hoare triple {10324#(and (or (< 27 main_n) (and (<= 44 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 27) (<= main_i 44)))} assume i <= n * 4; {10324#(and (or (< 27 main_n) (and (<= 44 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 27) (<= main_i 44)))} is VALID [2019-01-31 14:33:19,144 INFO L273 TraceCheckUtils]: 23: Hoare triple {10324#(and (or (< 27 main_n) (and (<= 44 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 27) (<= main_i 44)))} assume a[i] != 23;i := i + 4; {10325#(and (or (and (<= 48 main_i) (= 23 (select main_a (* 4 main_n)))) (< 27 main_n)) (or (<= main_n 27) (<= main_i 48)))} is VALID [2019-01-31 14:33:19,145 INFO L273 TraceCheckUtils]: 24: Hoare triple {10325#(and (or (and (<= 48 main_i) (= 23 (select main_a (* 4 main_n)))) (< 27 main_n)) (or (<= main_n 27) (<= main_i 48)))} assume i <= n * 4; {10325#(and (or (and (<= 48 main_i) (= 23 (select main_a (* 4 main_n)))) (< 27 main_n)) (or (<= main_n 27) (<= main_i 48)))} is VALID [2019-01-31 14:33:19,146 INFO L273 TraceCheckUtils]: 25: Hoare triple {10325#(and (or (and (<= 48 main_i) (= 23 (select main_a (* 4 main_n)))) (< 27 main_n)) (or (<= main_n 27) (<= main_i 48)))} assume a[i] != 23;i := i + 4; {10326#(and (or (<= main_i 52) (<= main_n 27)) (or (and (<= 52 main_i) (= 23 (select main_a (* 4 main_n)))) (< 27 main_n)))} is VALID [2019-01-31 14:33:19,149 INFO L273 TraceCheckUtils]: 26: Hoare triple {10326#(and (or (<= main_i 52) (<= main_n 27)) (or (and (<= 52 main_i) (= 23 (select main_a (* 4 main_n)))) (< 27 main_n)))} assume i <= n * 4; {10326#(and (or (<= main_i 52) (<= main_n 27)) (or (and (<= 52 main_i) (= 23 (select main_a (* 4 main_n)))) (< 27 main_n)))} is VALID [2019-01-31 14:33:19,150 INFO L273 TraceCheckUtils]: 27: Hoare triple {10326#(and (or (<= main_i 52) (<= main_n 27)) (or (and (<= 52 main_i) (= 23 (select main_a (* 4 main_n)))) (< 27 main_n)))} assume a[i] != 23;i := i + 4; {10327#(and (or (and (<= 56 main_i) (= 23 (select main_a (* 4 main_n)))) (< 27 main_n)) (or (<= main_i 56) (<= main_n 27)))} is VALID [2019-01-31 14:33:19,151 INFO L273 TraceCheckUtils]: 28: Hoare triple {10327#(and (or (and (<= 56 main_i) (= 23 (select main_a (* 4 main_n)))) (< 27 main_n)) (or (<= main_i 56) (<= main_n 27)))} assume i <= n * 4; {10327#(and (or (and (<= 56 main_i) (= 23 (select main_a (* 4 main_n)))) (< 27 main_n)) (or (<= main_i 56) (<= main_n 27)))} is VALID [2019-01-31 14:33:19,151 INFO L273 TraceCheckUtils]: 29: Hoare triple {10327#(and (or (and (<= 56 main_i) (= 23 (select main_a (* 4 main_n)))) (< 27 main_n)) (or (<= main_i 56) (<= main_n 27)))} assume a[i] != 23;i := i + 4; {10328#(and (or (<= main_i 60) (<= main_n 27)) (or (< 27 main_n) (and (<= 60 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:33:19,153 INFO L273 TraceCheckUtils]: 30: Hoare triple {10328#(and (or (<= main_i 60) (<= main_n 27)) (or (< 27 main_n) (and (<= 60 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {10328#(and (or (<= main_i 60) (<= main_n 27)) (or (< 27 main_n) (and (<= 60 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:33:19,154 INFO L273 TraceCheckUtils]: 31: Hoare triple {10328#(and (or (<= main_i 60) (<= main_n 27)) (or (< 27 main_n) (and (<= 60 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {10329#(and (or (<= main_i 64) (<= main_n 27)) (or (and (<= 64 main_i) (= 23 (select main_a (* 4 main_n)))) (< 27 main_n)))} is VALID [2019-01-31 14:33:19,155 INFO L273 TraceCheckUtils]: 32: Hoare triple {10329#(and (or (<= main_i 64) (<= main_n 27)) (or (and (<= 64 main_i) (= 23 (select main_a (* 4 main_n)))) (< 27 main_n)))} assume i <= n * 4; {10329#(and (or (<= main_i 64) (<= main_n 27)) (or (and (<= 64 main_i) (= 23 (select main_a (* 4 main_n)))) (< 27 main_n)))} is VALID [2019-01-31 14:33:19,156 INFO L273 TraceCheckUtils]: 33: Hoare triple {10329#(and (or (<= main_i 64) (<= main_n 27)) (or (and (<= 64 main_i) (= 23 (select main_a (* 4 main_n)))) (< 27 main_n)))} assume a[i] != 23;i := i + 4; {10330#(and (or (<= main_n 27) (<= main_i 68)) (or (and (<= 68 main_i) (= 23 (select main_a (* 4 main_n)))) (< 27 main_n)))} is VALID [2019-01-31 14:33:19,157 INFO L273 TraceCheckUtils]: 34: Hoare triple {10330#(and (or (<= main_n 27) (<= main_i 68)) (or (and (<= 68 main_i) (= 23 (select main_a (* 4 main_n)))) (< 27 main_n)))} assume i <= n * 4; {10330#(and (or (<= main_n 27) (<= main_i 68)) (or (and (<= 68 main_i) (= 23 (select main_a (* 4 main_n)))) (< 27 main_n)))} is VALID [2019-01-31 14:33:19,158 INFO L273 TraceCheckUtils]: 35: Hoare triple {10330#(and (or (<= main_n 27) (<= main_i 68)) (or (and (<= 68 main_i) (= 23 (select main_a (* 4 main_n)))) (< 27 main_n)))} assume a[i] != 23;i := i + 4; {10331#(and (or (and (<= 72 main_i) (= 23 (select main_a (* 4 main_n)))) (< 27 main_n)) (or (<= main_n 27) (<= main_i 72)))} is VALID [2019-01-31 14:33:19,159 INFO L273 TraceCheckUtils]: 36: Hoare triple {10331#(and (or (and (<= 72 main_i) (= 23 (select main_a (* 4 main_n)))) (< 27 main_n)) (or (<= main_n 27) (<= main_i 72)))} assume i <= n * 4; {10331#(and (or (and (<= 72 main_i) (= 23 (select main_a (* 4 main_n)))) (< 27 main_n)) (or (<= main_n 27) (<= main_i 72)))} is VALID [2019-01-31 14:33:19,160 INFO L273 TraceCheckUtils]: 37: Hoare triple {10331#(and (or (and (<= 72 main_i) (= 23 (select main_a (* 4 main_n)))) (< 27 main_n)) (or (<= main_n 27) (<= main_i 72)))} assume a[i] != 23;i := i + 4; {10332#(and (or (<= main_i 76) (<= main_n 27)) (or (and (<= 76 main_i) (= 23 (select main_a (* 4 main_n)))) (< 27 main_n)))} is VALID [2019-01-31 14:33:19,161 INFO L273 TraceCheckUtils]: 38: Hoare triple {10332#(and (or (<= main_i 76) (<= main_n 27)) (or (and (<= 76 main_i) (= 23 (select main_a (* 4 main_n)))) (< 27 main_n)))} assume i <= n * 4; {10332#(and (or (<= main_i 76) (<= main_n 27)) (or (and (<= 76 main_i) (= 23 (select main_a (* 4 main_n)))) (< 27 main_n)))} is VALID [2019-01-31 14:33:19,162 INFO L273 TraceCheckUtils]: 39: Hoare triple {10332#(and (or (<= main_i 76) (<= main_n 27)) (or (and (<= 76 main_i) (= 23 (select main_a (* 4 main_n)))) (< 27 main_n)))} assume a[i] != 23;i := i + 4; {10333#(and (or (<= main_n 27) (<= main_i 80)) (or (and (<= 80 main_i) (= 23 (select main_a (* 4 main_n)))) (< 27 main_n)))} is VALID [2019-01-31 14:33:19,163 INFO L273 TraceCheckUtils]: 40: Hoare triple {10333#(and (or (<= main_n 27) (<= main_i 80)) (or (and (<= 80 main_i) (= 23 (select main_a (* 4 main_n)))) (< 27 main_n)))} assume i <= n * 4; {10333#(and (or (<= main_n 27) (<= main_i 80)) (or (and (<= 80 main_i) (= 23 (select main_a (* 4 main_n)))) (< 27 main_n)))} is VALID [2019-01-31 14:33:19,164 INFO L273 TraceCheckUtils]: 41: Hoare triple {10333#(and (or (<= main_n 27) (<= main_i 80)) (or (and (<= 80 main_i) (= 23 (select main_a (* 4 main_n)))) (< 27 main_n)))} assume a[i] != 23;i := i + 4; {10334#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 84 main_i)) (< 27 main_n)) (or (<= main_i 84) (<= main_n 27)))} is VALID [2019-01-31 14:33:19,165 INFO L273 TraceCheckUtils]: 42: Hoare triple {10334#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 84 main_i)) (< 27 main_n)) (or (<= main_i 84) (<= main_n 27)))} assume i <= n * 4; {10334#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 84 main_i)) (< 27 main_n)) (or (<= main_i 84) (<= main_n 27)))} is VALID [2019-01-31 14:33:19,166 INFO L273 TraceCheckUtils]: 43: Hoare triple {10334#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 84 main_i)) (< 27 main_n)) (or (<= main_i 84) (<= main_n 27)))} assume a[i] != 23;i := i + 4; {10335#(and (or (<= main_i 88) (<= main_n 27)) (or (and (<= 88 main_i) (= 23 (select main_a (* 4 main_n)))) (< 27 main_n)))} is VALID [2019-01-31 14:33:19,167 INFO L273 TraceCheckUtils]: 44: Hoare triple {10335#(and (or (<= main_i 88) (<= main_n 27)) (or (and (<= 88 main_i) (= 23 (select main_a (* 4 main_n)))) (< 27 main_n)))} assume i <= n * 4; {10335#(and (or (<= main_i 88) (<= main_n 27)) (or (and (<= 88 main_i) (= 23 (select main_a (* 4 main_n)))) (< 27 main_n)))} is VALID [2019-01-31 14:33:19,168 INFO L273 TraceCheckUtils]: 45: Hoare triple {10335#(and (or (<= main_i 88) (<= main_n 27)) (or (and (<= 88 main_i) (= 23 (select main_a (* 4 main_n)))) (< 27 main_n)))} assume a[i] != 23;i := i + 4; {10336#(and (or (< 27 main_n) (and (<= 92 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 92) (<= main_n 27)))} is VALID [2019-01-31 14:33:19,169 INFO L273 TraceCheckUtils]: 46: Hoare triple {10336#(and (or (< 27 main_n) (and (<= 92 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 92) (<= main_n 27)))} assume i <= n * 4; {10336#(and (or (< 27 main_n) (and (<= 92 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 92) (<= main_n 27)))} is VALID [2019-01-31 14:33:19,170 INFO L273 TraceCheckUtils]: 47: Hoare triple {10336#(and (or (< 27 main_n) (and (<= 92 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 92) (<= main_n 27)))} assume a[i] != 23;i := i + 4; {10337#(and (or (<= main_i 96) (<= main_n 27)) (or (and (<= 96 main_i) (= 23 (select main_a (* 4 main_n)))) (< 27 main_n)))} is VALID [2019-01-31 14:33:19,171 INFO L273 TraceCheckUtils]: 48: Hoare triple {10337#(and (or (<= main_i 96) (<= main_n 27)) (or (and (<= 96 main_i) (= 23 (select main_a (* 4 main_n)))) (< 27 main_n)))} assume i <= n * 4; {10337#(and (or (<= main_i 96) (<= main_n 27)) (or (and (<= 96 main_i) (= 23 (select main_a (* 4 main_n)))) (< 27 main_n)))} is VALID [2019-01-31 14:33:19,172 INFO L273 TraceCheckUtils]: 49: Hoare triple {10337#(and (or (<= main_i 96) (<= main_n 27)) (or (and (<= 96 main_i) (= 23 (select main_a (* 4 main_n)))) (< 27 main_n)))} assume a[i] != 23;i := i + 4; {10338#(and (or (and (<= 100 main_i) (= 23 (select main_a (* 4 main_n)))) (< 27 main_n)) (or (<= main_i 100) (<= main_n 27)))} is VALID [2019-01-31 14:33:19,173 INFO L273 TraceCheckUtils]: 50: Hoare triple {10338#(and (or (and (<= 100 main_i) (= 23 (select main_a (* 4 main_n)))) (< 27 main_n)) (or (<= main_i 100) (<= main_n 27)))} assume i <= n * 4; {10338#(and (or (and (<= 100 main_i) (= 23 (select main_a (* 4 main_n)))) (< 27 main_n)) (or (<= main_i 100) (<= main_n 27)))} is VALID [2019-01-31 14:33:19,174 INFO L273 TraceCheckUtils]: 51: Hoare triple {10338#(and (or (and (<= 100 main_i) (= 23 (select main_a (* 4 main_n)))) (< 27 main_n)) (or (<= main_i 100) (<= main_n 27)))} assume a[i] != 23;i := i + 4; {10339#(and (or (and (<= 104 main_i) (= 23 (select main_a (* 4 main_n)))) (< 27 main_n)) (or (<= main_i 104) (<= main_n 27)))} is VALID [2019-01-31 14:33:19,175 INFO L273 TraceCheckUtils]: 52: Hoare triple {10339#(and (or (and (<= 104 main_i) (= 23 (select main_a (* 4 main_n)))) (< 27 main_n)) (or (<= main_i 104) (<= main_n 27)))} assume i <= n * 4; {10339#(and (or (and (<= 104 main_i) (= 23 (select main_a (* 4 main_n)))) (< 27 main_n)) (or (<= main_i 104) (<= main_n 27)))} is VALID [2019-01-31 14:33:19,176 INFO L273 TraceCheckUtils]: 53: Hoare triple {10339#(and (or (and (<= 104 main_i) (= 23 (select main_a (* 4 main_n)))) (< 27 main_n)) (or (<= main_i 104) (<= main_n 27)))} assume a[i] != 23;i := i + 4; {10340#(and (or (<= main_n 27) (<= main_i 108)) (or (and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (<= (* 4 main_n) main_i)) (< 27 main_n)))} is VALID [2019-01-31 14:33:19,178 INFO L273 TraceCheckUtils]: 54: Hoare triple {10340#(and (or (<= main_n 27) (<= main_i 108)) (or (and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (<= (* 4 main_n) main_i)) (< 27 main_n)))} assume i <= n * 4; {10341#(and (or (< 27 main_n) (and (<= (* 4 main_n) main_i) (<= main_i (* 4 main_n)) (= 23 (select main_a main_i)))) (<= main_i 108))} is VALID [2019-01-31 14:33:19,179 INFO L273 TraceCheckUtils]: 55: Hoare triple {10341#(and (or (< 27 main_n) (and (<= (* 4 main_n) main_i) (<= main_i (* 4 main_n)) (= 23 (select main_a main_i)))) (<= main_i 108))} assume a[i] != 23;i := i + 4; {10342#(and (< 27 main_n) (<= main_i 112))} is VALID [2019-01-31 14:33:19,180 INFO L273 TraceCheckUtils]: 56: Hoare triple {10342#(and (< 27 main_n) (<= main_i 112))} assume !(i <= n * 4); {10312#false} is VALID [2019-01-31 14:33:19,196 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 14:33:19,196 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-31 14:33:19,196 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-01-31 14:33:19,196 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-01-31 14:33:19,196 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-01-31 14:33:19,196 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-31 14:33:19,196 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 14:33:19,205 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2019-01-31 14:33:19,206 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder TERMS_WITH_SMALL_CONSTANTS_FIRST (IT: FPandBP) [2019-01-31 14:33:19,222 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-01-31 14:33:19,223 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-01-31 14:33:19,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-31 14:33:19,235 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-31 14:33:19,242 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 14:33:19,244 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-01-31 14:33:19,252 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-31 14:33:19,252 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2019-01-31 14:33:19,253 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-01-31 14:33:19,254 WARN L398 uantifierElimination]: Input elimination task: ∃ [v_main_a_31]. (and (= (store v_main_a_31 (* 4 main_n) 23) main_a) (= main_i 0)) [2019-01-31 14:33:19,254 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2019-01-31 14:33:20,782 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2019-01-31 14:33:20,784 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-01-31 14:33:20,790 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-31 14:33:20,790 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2019-01-31 14:33:20,792 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-01-31 14:33:20,793 WARN L398 uantifierElimination]: Input elimination task: ∃ [main_a]. (let ((.cse0 (* 4 main_n))) (and (not (= 23 (select main_a 108))) (<= 108 .cse0) (= 23 (select main_a .cse0)) (<= main_i 112))) [2019-01-31 14:33:20,793 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (let ((.cse0 (* 4 main_n))) (and (not (= 108 .cse0)) (<= 108 .cse0) (<= main_i 112))) [2019-01-31 14:33:20,829 INFO L273 TraceCheckUtils]: 0: Hoare triple {10311#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {10346#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:20,830 INFO L273 TraceCheckUtils]: 1: Hoare triple {10346#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {10350#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2019-01-31 14:33:20,831 INFO L273 TraceCheckUtils]: 2: Hoare triple {10350#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume i <= n * 4; {10350#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2019-01-31 14:33:20,831 INFO L273 TraceCheckUtils]: 3: Hoare triple {10350#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume a[i] != 23;i := i + 4; {10357#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:20,832 INFO L273 TraceCheckUtils]: 4: Hoare triple {10357#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {10357#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:20,833 INFO L273 TraceCheckUtils]: 5: Hoare triple {10357#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {10364#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2019-01-31 14:33:20,834 INFO L273 TraceCheckUtils]: 6: Hoare triple {10364#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume i <= n * 4; {10364#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2019-01-31 14:33:20,834 INFO L273 TraceCheckUtils]: 7: Hoare triple {10364#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume a[i] != 23;i := i + 4; {10371#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:20,835 INFO L273 TraceCheckUtils]: 8: Hoare triple {10371#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {10371#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:20,836 INFO L273 TraceCheckUtils]: 9: Hoare triple {10371#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {10378#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:20,837 INFO L273 TraceCheckUtils]: 10: Hoare triple {10378#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {10378#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:20,837 INFO L273 TraceCheckUtils]: 11: Hoare triple {10378#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {10385#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:20,838 INFO L273 TraceCheckUtils]: 12: Hoare triple {10385#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {10385#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:20,839 INFO L273 TraceCheckUtils]: 13: Hoare triple {10385#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {10392#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:20,839 INFO L273 TraceCheckUtils]: 14: Hoare triple {10392#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {10392#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:20,840 INFO L273 TraceCheckUtils]: 15: Hoare triple {10392#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {10399#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:20,841 INFO L273 TraceCheckUtils]: 16: Hoare triple {10399#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {10399#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:20,842 INFO L273 TraceCheckUtils]: 17: Hoare triple {10399#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {10406#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:20,842 INFO L273 TraceCheckUtils]: 18: Hoare triple {10406#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {10406#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:20,843 INFO L273 TraceCheckUtils]: 19: Hoare triple {10406#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {10413#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:20,844 INFO L273 TraceCheckUtils]: 20: Hoare triple {10413#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {10413#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:20,844 INFO L273 TraceCheckUtils]: 21: Hoare triple {10413#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {10420#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:20,845 INFO L273 TraceCheckUtils]: 22: Hoare triple {10420#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {10420#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:20,846 INFO L273 TraceCheckUtils]: 23: Hoare triple {10420#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {10427#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:20,846 INFO L273 TraceCheckUtils]: 24: Hoare triple {10427#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {10427#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:20,847 INFO L273 TraceCheckUtils]: 25: Hoare triple {10427#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {10434#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:20,848 INFO L273 TraceCheckUtils]: 26: Hoare triple {10434#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {10434#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:20,849 INFO L273 TraceCheckUtils]: 27: Hoare triple {10434#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {10441#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:20,849 INFO L273 TraceCheckUtils]: 28: Hoare triple {10441#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {10441#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:20,850 INFO L273 TraceCheckUtils]: 29: Hoare triple {10441#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {10448#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:20,851 INFO L273 TraceCheckUtils]: 30: Hoare triple {10448#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {10448#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:20,851 INFO L273 TraceCheckUtils]: 31: Hoare triple {10448#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {10455#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:20,852 INFO L273 TraceCheckUtils]: 32: Hoare triple {10455#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {10455#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:20,853 INFO L273 TraceCheckUtils]: 33: Hoare triple {10455#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {10462#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:20,853 INFO L273 TraceCheckUtils]: 34: Hoare triple {10462#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {10462#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:20,854 INFO L273 TraceCheckUtils]: 35: Hoare triple {10462#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {10469#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:20,855 INFO L273 TraceCheckUtils]: 36: Hoare triple {10469#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {10469#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:20,855 INFO L273 TraceCheckUtils]: 37: Hoare triple {10469#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {10476#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:20,865 INFO L273 TraceCheckUtils]: 38: Hoare triple {10476#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {10476#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:20,866 INFO L273 TraceCheckUtils]: 39: Hoare triple {10476#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {10483#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} is VALID [2019-01-31 14:33:20,866 INFO L273 TraceCheckUtils]: 40: Hoare triple {10483#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} assume i <= n * 4; {10483#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} is VALID [2019-01-31 14:33:20,867 INFO L273 TraceCheckUtils]: 41: Hoare triple {10483#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} assume a[i] != 23;i := i + 4; {10490#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:20,867 INFO L273 TraceCheckUtils]: 42: Hoare triple {10490#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {10490#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:20,868 INFO L273 TraceCheckUtils]: 43: Hoare triple {10490#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {10497#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:20,868 INFO L273 TraceCheckUtils]: 44: Hoare triple {10497#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {10497#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:20,869 INFO L273 TraceCheckUtils]: 45: Hoare triple {10497#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {10504#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:20,869 INFO L273 TraceCheckUtils]: 46: Hoare triple {10504#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {10504#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:20,869 INFO L273 TraceCheckUtils]: 47: Hoare triple {10504#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {10511#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:20,870 INFO L273 TraceCheckUtils]: 48: Hoare triple {10511#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {10511#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:20,871 INFO L273 TraceCheckUtils]: 49: Hoare triple {10511#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {10518#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:20,871 INFO L273 TraceCheckUtils]: 50: Hoare triple {10518#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {10518#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:20,872 INFO L273 TraceCheckUtils]: 51: Hoare triple {10518#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {10525#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:20,873 INFO L273 TraceCheckUtils]: 52: Hoare triple {10525#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {10525#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:20,873 INFO L273 TraceCheckUtils]: 53: Hoare triple {10525#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {10532#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:20,874 INFO L273 TraceCheckUtils]: 54: Hoare triple {10532#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {10536#(and (= main_i 108) (<= main_i (* 4 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:20,875 INFO L273 TraceCheckUtils]: 55: Hoare triple {10536#(and (= main_i 108) (<= main_i (* 4 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {10342#(and (< 27 main_n) (<= main_i 112))} is VALID [2019-01-31 14:33:20,876 INFO L273 TraceCheckUtils]: 56: Hoare triple {10342#(and (< 27 main_n) (<= main_i 112))} assume !(i <= n * 4); {10312#false} is VALID [2019-01-31 14:33:20,885 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 14:33:20,885 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2019-01-31 14:33:23,312 INFO L273 TraceCheckUtils]: 56: Hoare triple {10543#(<= main_i (* 4 main_n))} assume !(i <= n * 4); {10312#false} is VALID [2019-01-31 14:33:23,313 INFO L273 TraceCheckUtils]: 55: Hoare triple {10547#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} assume a[i] != 23;i := i + 4; {10543#(<= main_i (* 4 main_n))} is VALID [2019-01-31 14:33:23,313 INFO L273 TraceCheckUtils]: 54: Hoare triple {10551#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} assume i <= n * 4; {10547#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} is VALID [2019-01-31 14:33:23,314 INFO L273 TraceCheckUtils]: 53: Hoare triple {10555#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume a[i] != 23;i := i + 4; {10551#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} is VALID [2019-01-31 14:33:23,314 INFO L273 TraceCheckUtils]: 52: Hoare triple {10555#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume i <= n * 4; {10555#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2019-01-31 14:33:23,315 INFO L273 TraceCheckUtils]: 51: Hoare triple {10562#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume a[i] != 23;i := i + 4; {10555#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2019-01-31 14:33:23,315 INFO L273 TraceCheckUtils]: 50: Hoare triple {10562#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume i <= n * 4; {10562#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2019-01-31 14:33:23,317 INFO L273 TraceCheckUtils]: 49: Hoare triple {10569#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume a[i] != 23;i := i + 4; {10562#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2019-01-31 14:33:23,317 INFO L273 TraceCheckUtils]: 48: Hoare triple {10569#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume i <= n * 4; {10569#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2019-01-31 14:33:23,318 INFO L273 TraceCheckUtils]: 47: Hoare triple {10576#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume a[i] != 23;i := i + 4; {10569#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2019-01-31 14:33:23,319 INFO L273 TraceCheckUtils]: 46: Hoare triple {10576#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume i <= n * 4; {10576#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2019-01-31 14:33:23,320 INFO L273 TraceCheckUtils]: 45: Hoare triple {10583#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {10576#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2019-01-31 14:33:23,320 INFO L273 TraceCheckUtils]: 44: Hoare triple {10583#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume i <= n * 4; {10583#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2019-01-31 14:33:23,321 INFO L273 TraceCheckUtils]: 43: Hoare triple {10590#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume a[i] != 23;i := i + 4; {10583#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2019-01-31 14:33:23,322 INFO L273 TraceCheckUtils]: 42: Hoare triple {10590#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume i <= n * 4; {10590#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2019-01-31 14:33:23,323 INFO L273 TraceCheckUtils]: 41: Hoare triple {10597#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {10590#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2019-01-31 14:33:23,324 INFO L273 TraceCheckUtils]: 40: Hoare triple {10597#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume i <= n * 4; {10597#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2019-01-31 14:33:23,331 INFO L273 TraceCheckUtils]: 39: Hoare triple {10604#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {10597#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2019-01-31 14:33:23,332 INFO L273 TraceCheckUtils]: 38: Hoare triple {10604#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume i <= n * 4; {10604#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2019-01-31 14:33:23,333 INFO L273 TraceCheckUtils]: 37: Hoare triple {10611#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {10604#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2019-01-31 14:33:23,333 INFO L273 TraceCheckUtils]: 36: Hoare triple {10611#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume i <= n * 4; {10611#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2019-01-31 14:33:23,334 INFO L273 TraceCheckUtils]: 35: Hoare triple {10618#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} assume a[i] != 23;i := i + 4; {10611#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2019-01-31 14:33:23,334 INFO L273 TraceCheckUtils]: 34: Hoare triple {10618#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} assume i <= n * 4; {10618#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} is VALID [2019-01-31 14:33:23,335 INFO L273 TraceCheckUtils]: 33: Hoare triple {10625#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {10618#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} is VALID [2019-01-31 14:33:23,335 INFO L273 TraceCheckUtils]: 32: Hoare triple {10625#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} assume i <= n * 4; {10625#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} is VALID [2019-01-31 14:33:23,336 INFO L273 TraceCheckUtils]: 31: Hoare triple {10632#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {10625#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} is VALID [2019-01-31 14:33:23,336 INFO L273 TraceCheckUtils]: 30: Hoare triple {10632#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} assume i <= n * 4; {10632#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} is VALID [2019-01-31 14:33:23,337 INFO L273 TraceCheckUtils]: 29: Hoare triple {10639#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} assume a[i] != 23;i := i + 4; {10632#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} is VALID [2019-01-31 14:33:23,338 INFO L273 TraceCheckUtils]: 28: Hoare triple {10639#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} assume i <= n * 4; {10639#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} is VALID [2019-01-31 14:33:23,339 INFO L273 TraceCheckUtils]: 27: Hoare triple {10646#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {10639#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} is VALID [2019-01-31 14:33:23,339 INFO L273 TraceCheckUtils]: 26: Hoare triple {10646#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} assume i <= n * 4; {10646#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} is VALID [2019-01-31 14:33:23,340 INFO L273 TraceCheckUtils]: 25: Hoare triple {10653#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} assume a[i] != 23;i := i + 4; {10646#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} is VALID [2019-01-31 14:33:23,341 INFO L273 TraceCheckUtils]: 24: Hoare triple {10653#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} assume i <= n * 4; {10653#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} is VALID [2019-01-31 14:33:23,342 INFO L273 TraceCheckUtils]: 23: Hoare triple {10660#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} assume a[i] != 23;i := i + 4; {10653#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} is VALID [2019-01-31 14:33:23,342 INFO L273 TraceCheckUtils]: 22: Hoare triple {10660#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} assume i <= n * 4; {10660#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} is VALID [2019-01-31 14:33:23,344 INFO L273 TraceCheckUtils]: 21: Hoare triple {10667#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} assume a[i] != 23;i := i + 4; {10660#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} is VALID [2019-01-31 14:33:23,344 INFO L273 TraceCheckUtils]: 20: Hoare triple {10667#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} assume i <= n * 4; {10667#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} is VALID [2019-01-31 14:33:23,345 INFO L273 TraceCheckUtils]: 19: Hoare triple {10674#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} assume a[i] != 23;i := i + 4; {10667#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} is VALID [2019-01-31 14:33:23,346 INFO L273 TraceCheckUtils]: 18: Hoare triple {10674#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} assume i <= n * 4; {10674#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} is VALID [2019-01-31 14:33:23,347 INFO L273 TraceCheckUtils]: 17: Hoare triple {10681#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} assume a[i] != 23;i := i + 4; {10674#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} is VALID [2019-01-31 14:33:23,347 INFO L273 TraceCheckUtils]: 16: Hoare triple {10681#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} assume i <= n * 4; {10681#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} is VALID [2019-01-31 14:33:23,348 INFO L273 TraceCheckUtils]: 15: Hoare triple {10688#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} assume a[i] != 23;i := i + 4; {10681#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} is VALID [2019-01-31 14:33:23,349 INFO L273 TraceCheckUtils]: 14: Hoare triple {10688#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} assume i <= n * 4; {10688#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} is VALID [2019-01-31 14:33:23,350 INFO L273 TraceCheckUtils]: 13: Hoare triple {10695#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {10688#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} is VALID [2019-01-31 14:33:23,350 INFO L273 TraceCheckUtils]: 12: Hoare triple {10695#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} assume i <= n * 4; {10695#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} is VALID [2019-01-31 14:33:23,351 INFO L273 TraceCheckUtils]: 11: Hoare triple {10702#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {10695#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} is VALID [2019-01-31 14:33:23,352 INFO L273 TraceCheckUtils]: 10: Hoare triple {10702#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} assume i <= n * 4; {10702#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} is VALID [2019-01-31 14:33:23,353 INFO L273 TraceCheckUtils]: 9: Hoare triple {10709#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {10702#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} is VALID [2019-01-31 14:33:23,354 INFO L273 TraceCheckUtils]: 8: Hoare triple {10709#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} assume i <= n * 4; {10709#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} is VALID [2019-01-31 14:33:23,355 INFO L273 TraceCheckUtils]: 7: Hoare triple {10716#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} assume a[i] != 23;i := i + 4; {10709#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} is VALID [2019-01-31 14:33:23,355 INFO L273 TraceCheckUtils]: 6: Hoare triple {10716#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} assume i <= n * 4; {10716#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} is VALID [2019-01-31 14:33:23,356 INFO L273 TraceCheckUtils]: 5: Hoare triple {10723#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {10716#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} is VALID [2019-01-31 14:33:23,357 INFO L273 TraceCheckUtils]: 4: Hoare triple {10723#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} assume i <= n * 4; {10723#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} is VALID [2019-01-31 14:33:23,358 INFO L273 TraceCheckUtils]: 3: Hoare triple {10730#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} assume a[i] != 23;i := i + 4; {10723#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} is VALID [2019-01-31 14:33:23,358 INFO L273 TraceCheckUtils]: 2: Hoare triple {10730#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} assume i <= n * 4; {10730#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} is VALID [2019-01-31 14:33:23,359 INFO L273 TraceCheckUtils]: 1: Hoare triple {10737#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} assume a[i] != 23;i := i + 4; {10730#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} is VALID [2019-01-31 14:33:23,360 INFO L273 TraceCheckUtils]: 0: Hoare triple {10311#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {10737#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} is VALID [2019-01-31 14:33:23,374 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 14:33:23,392 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-01-31 14:33:23,393 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [30, 30, 30] total 89 [2019-01-31 14:33:23,393 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-01-31 14:33:23,393 INFO L78 Accepts]: Start accepts. Automaton has 61 states. Word has length 57 [2019-01-31 14:33:23,393 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-01-31 14:33:23,393 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 61 states. [2019-01-31 14:33:23,525 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 14:33:23,525 INFO L459 AbstractCegarLoop]: Interpolant automaton has 61 states [2019-01-31 14:33:23,525 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 61 interpolants. [2019-01-31 14:33:23,526 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1058, Invalid=7132, Unknown=0, NotChecked=0, Total=8190 [2019-01-31 14:33:23,526 INFO L87 Difference]: Start difference. First operand 58 states and 58 transitions. Second operand 61 states. [2019-01-31 14:33:29,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 14:33:29,599 INFO L93 Difference]: Finished difference Result 62 states and 62 transitions. [2019-01-31 14:33:29,599 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2019-01-31 14:33:29,599 INFO L78 Accepts]: Start accepts. Automaton has 61 states. Word has length 57 [2019-01-31 14:33:29,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-31 14:33:29,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2019-01-31 14:33:29,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 62 transitions. [2019-01-31 14:33:29,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2019-01-31 14:33:29,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 62 transitions. [2019-01-31 14:33:29,602 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 32 states and 62 transitions. [2019-01-31 14:33:29,676 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 14:33:29,678 INFO L225 Difference]: With dead ends: 62 [2019-01-31 14:33:29,678 INFO L226 Difference]: Without dead ends: 61 [2019-01-31 14:33:29,679 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 52 SyntacticMatches, 1 SemanticMatches, 89 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1856 ImplicationChecksByTransitivity, 4.8s TimeCoverageRelationStatistics Valid=1058, Invalid=7132, Unknown=0, NotChecked=0, Total=8190 [2019-01-31 14:33:29,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2019-01-31 14:33:29,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 60. [2019-01-31 14:33:29,740 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-01-31 14:33:29,740 INFO L82 GeneralOperation]: Start isEquivalent. First operand 61 states. Second operand 60 states. [2019-01-31 14:33:29,740 INFO L74 IsIncluded]: Start isIncluded. First operand 61 states. Second operand 60 states. [2019-01-31 14:33:29,740 INFO L87 Difference]: Start difference. First operand 61 states. Second operand 60 states. [2019-01-31 14:33:29,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 14:33:29,742 INFO L93 Difference]: Finished difference Result 61 states and 61 transitions. [2019-01-31 14:33:29,742 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 61 transitions. [2019-01-31 14:33:29,742 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-31 14:33:29,742 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-01-31 14:33:29,742 INFO L74 IsIncluded]: Start isIncluded. First operand 60 states. Second operand 61 states. [2019-01-31 14:33:29,742 INFO L87 Difference]: Start difference. First operand 60 states. Second operand 61 states. [2019-01-31 14:33:29,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 14:33:29,743 INFO L93 Difference]: Finished difference Result 61 states and 61 transitions. [2019-01-31 14:33:29,743 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 61 transitions. [2019-01-31 14:33:29,744 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-31 14:33:29,744 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-01-31 14:33:29,744 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-01-31 14:33:29,744 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-01-31 14:33:29,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60 states. [2019-01-31 14:33:29,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 60 transitions. [2019-01-31 14:33:29,745 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 60 transitions. Word has length 57 [2019-01-31 14:33:29,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-31 14:33:29,745 INFO L480 AbstractCegarLoop]: Abstraction has 60 states and 60 transitions. [2019-01-31 14:33:29,745 INFO L481 AbstractCegarLoop]: Interpolant automaton has 61 states. [2019-01-31 14:33:29,745 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 60 transitions. [2019-01-31 14:33:29,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2019-01-31 14:33:29,746 INFO L394 BasicCegarLoop]: Found error trace [2019-01-31 14:33:29,746 INFO L402 BasicCegarLoop]: trace histogram [29, 28, 1, 1] [2019-01-31 14:33:29,746 INFO L423 AbstractCegarLoop]: === Iteration 29 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-01-31 14:33:29,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-31 14:33:29,747 INFO L82 PathProgramCache]: Analyzing trace with hash -353255656, now seen corresponding path program 28 times [2019-01-31 14:33:29,747 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-01-31 14:33:29,747 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-31 14:33:29,748 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-01-31 14:33:29,748 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-31 14:33:29,748 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-01-31 14:33:29,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-31 14:33:30,174 WARN L181 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 17 [2019-01-31 14:33:31,691 INFO L273 TraceCheckUtils]: 0: Hoare triple {11043#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {11045#(and (or (<= main_n 28) (<= main_i 0)) (or (<= 0 main_i) (< 28 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:31,692 INFO L273 TraceCheckUtils]: 1: Hoare triple {11045#(and (or (<= main_n 28) (<= main_i 0)) (or (<= 0 main_i) (< 28 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11046#(and (or (<= main_n 28) (<= main_i 4)) (or (< 28 main_n) (<= 4 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:31,693 INFO L273 TraceCheckUtils]: 2: Hoare triple {11046#(and (or (<= main_n 28) (<= main_i 4)) (or (< 28 main_n) (<= 4 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11046#(and (or (<= main_n 28) (<= main_i 4)) (or (< 28 main_n) (<= 4 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:31,694 INFO L273 TraceCheckUtils]: 3: Hoare triple {11046#(and (or (<= main_n 28) (<= main_i 4)) (or (< 28 main_n) (<= 4 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11047#(and (or (< 28 main_n) (<= 8 main_i)) (or (<= main_i 8) (<= main_n 28)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:31,695 INFO L273 TraceCheckUtils]: 4: Hoare triple {11047#(and (or (< 28 main_n) (<= 8 main_i)) (or (<= main_i 8) (<= main_n 28)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11047#(and (or (< 28 main_n) (<= 8 main_i)) (or (<= main_i 8) (<= main_n 28)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:31,696 INFO L273 TraceCheckUtils]: 5: Hoare triple {11047#(and (or (< 28 main_n) (<= 8 main_i)) (or (<= main_i 8) (<= main_n 28)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11048#(and (or (< 28 main_n) (<= 12 main_i)) (or (<= main_n 28) (<= main_i 12)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:31,696 INFO L273 TraceCheckUtils]: 6: Hoare triple {11048#(and (or (< 28 main_n) (<= 12 main_i)) (or (<= main_n 28) (<= main_i 12)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11048#(and (or (< 28 main_n) (<= 12 main_i)) (or (<= main_n 28) (<= main_i 12)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:31,697 INFO L273 TraceCheckUtils]: 7: Hoare triple {11048#(and (or (< 28 main_n) (<= 12 main_i)) (or (<= main_n 28) (<= main_i 12)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11049#(and (or (< 28 main_n) (<= 16 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 28) (<= main_i 16)))} is VALID [2019-01-31 14:33:31,698 INFO L273 TraceCheckUtils]: 8: Hoare triple {11049#(and (or (< 28 main_n) (<= 16 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 28) (<= main_i 16)))} assume i <= n * 4; {11049#(and (or (< 28 main_n) (<= 16 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 28) (<= main_i 16)))} is VALID [2019-01-31 14:33:31,699 INFO L273 TraceCheckUtils]: 9: Hoare triple {11049#(and (or (< 28 main_n) (<= 16 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 28) (<= main_i 16)))} assume a[i] != 23;i := i + 4; {11050#(and (or (<= main_n 28) (<= main_i 20)) (or (< 28 main_n) (<= 20 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:31,700 INFO L273 TraceCheckUtils]: 10: Hoare triple {11050#(and (or (<= main_n 28) (<= main_i 20)) (or (< 28 main_n) (<= 20 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11050#(and (or (<= main_n 28) (<= main_i 20)) (or (< 28 main_n) (<= 20 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:31,701 INFO L273 TraceCheckUtils]: 11: Hoare triple {11050#(and (or (<= main_n 28) (<= main_i 20)) (or (< 28 main_n) (<= 20 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11051#(and (or (< 28 main_n) (<= 24 main_i)) (or (<= main_n 28) (<= main_i 24)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:31,702 INFO L273 TraceCheckUtils]: 12: Hoare triple {11051#(and (or (< 28 main_n) (<= 24 main_i)) (or (<= main_n 28) (<= main_i 24)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11051#(and (or (< 28 main_n) (<= 24 main_i)) (or (<= main_n 28) (<= main_i 24)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:31,703 INFO L273 TraceCheckUtils]: 13: Hoare triple {11051#(and (or (< 28 main_n) (<= 24 main_i)) (or (<= main_n 28) (<= main_i 24)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11052#(and (or (<= 28 main_i) (< 28 main_n)) (or (<= main_n 28) (<= main_i 28)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:31,704 INFO L273 TraceCheckUtils]: 14: Hoare triple {11052#(and (or (<= 28 main_i) (< 28 main_n)) (or (<= main_n 28) (<= main_i 28)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11052#(and (or (<= 28 main_i) (< 28 main_n)) (or (<= main_n 28) (<= main_i 28)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:31,705 INFO L273 TraceCheckUtils]: 15: Hoare triple {11052#(and (or (<= 28 main_i) (< 28 main_n)) (or (<= main_n 28) (<= main_i 28)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11053#(and (or (<= main_i 32) (<= main_n 28)) (or (<= 32 main_i) (< 28 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:31,705 INFO L273 TraceCheckUtils]: 16: Hoare triple {11053#(and (or (<= main_i 32) (<= main_n 28)) (or (<= 32 main_i) (< 28 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11053#(and (or (<= main_i 32) (<= main_n 28)) (or (<= 32 main_i) (< 28 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:31,707 INFO L273 TraceCheckUtils]: 17: Hoare triple {11053#(and (or (<= main_i 32) (<= main_n 28)) (or (<= 32 main_i) (< 28 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11054#(and (or (<= main_i 36) (<= main_n 28)) (or (< 28 main_n) (<= 36 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:31,707 INFO L273 TraceCheckUtils]: 18: Hoare triple {11054#(and (or (<= main_i 36) (<= main_n 28)) (or (< 28 main_n) (<= 36 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11054#(and (or (<= main_i 36) (<= main_n 28)) (or (< 28 main_n) (<= 36 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:31,708 INFO L273 TraceCheckUtils]: 19: Hoare triple {11054#(and (or (<= main_i 36) (<= main_n 28)) (or (< 28 main_n) (<= 36 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11055#(and (or (<= 40 main_i) (< 28 main_n)) (or (<= main_i 40) (<= main_n 28)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:31,709 INFO L273 TraceCheckUtils]: 20: Hoare triple {11055#(and (or (<= 40 main_i) (< 28 main_n)) (or (<= main_i 40) (<= main_n 28)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11055#(and (or (<= 40 main_i) (< 28 main_n)) (or (<= main_i 40) (<= main_n 28)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:31,710 INFO L273 TraceCheckUtils]: 21: Hoare triple {11055#(and (or (<= 40 main_i) (< 28 main_n)) (or (<= main_i 40) (<= main_n 28)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11056#(and (or (<= main_n 28) (<= main_i 44)) (or (<= 44 main_i) (< 28 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:31,711 INFO L273 TraceCheckUtils]: 22: Hoare triple {11056#(and (or (<= main_n 28) (<= main_i 44)) (or (<= 44 main_i) (< 28 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11056#(and (or (<= main_n 28) (<= main_i 44)) (or (<= 44 main_i) (< 28 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:31,712 INFO L273 TraceCheckUtils]: 23: Hoare triple {11056#(and (or (<= main_n 28) (<= main_i 44)) (or (<= 44 main_i) (< 28 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11057#(and (or (<= main_n 28) (<= main_i 48)) (= 23 (select main_a (* 4 main_n))) (or (<= 48 main_i) (< 28 main_n)))} is VALID [2019-01-31 14:33:31,713 INFO L273 TraceCheckUtils]: 24: Hoare triple {11057#(and (or (<= main_n 28) (<= main_i 48)) (= 23 (select main_a (* 4 main_n))) (or (<= 48 main_i) (< 28 main_n)))} assume i <= n * 4; {11057#(and (or (<= main_n 28) (<= main_i 48)) (= 23 (select main_a (* 4 main_n))) (or (<= 48 main_i) (< 28 main_n)))} is VALID [2019-01-31 14:33:31,714 INFO L273 TraceCheckUtils]: 25: Hoare triple {11057#(and (or (<= main_n 28) (<= main_i 48)) (= 23 (select main_a (* 4 main_n))) (or (<= 48 main_i) (< 28 main_n)))} assume a[i] != 23;i := i + 4; {11058#(and (= 23 (select main_a (* 4 main_n))) (or (< 28 main_n) (<= 52 main_i)) (or (<= main_i 52) (<= main_n 28)))} is VALID [2019-01-31 14:33:31,715 INFO L273 TraceCheckUtils]: 26: Hoare triple {11058#(and (= 23 (select main_a (* 4 main_n))) (or (< 28 main_n) (<= 52 main_i)) (or (<= main_i 52) (<= main_n 28)))} assume i <= n * 4; {11058#(and (= 23 (select main_a (* 4 main_n))) (or (< 28 main_n) (<= 52 main_i)) (or (<= main_i 52) (<= main_n 28)))} is VALID [2019-01-31 14:33:31,716 INFO L273 TraceCheckUtils]: 27: Hoare triple {11058#(and (= 23 (select main_a (* 4 main_n))) (or (< 28 main_n) (<= 52 main_i)) (or (<= main_i 52) (<= main_n 28)))} assume a[i] != 23;i := i + 4; {11059#(and (or (<= main_n 28) (<= main_i 56)) (or (< 28 main_n) (<= 56 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:31,717 INFO L273 TraceCheckUtils]: 28: Hoare triple {11059#(and (or (<= main_n 28) (<= main_i 56)) (or (< 28 main_n) (<= 56 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11059#(and (or (<= main_n 28) (<= main_i 56)) (or (< 28 main_n) (<= 56 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:31,718 INFO L273 TraceCheckUtils]: 29: Hoare triple {11059#(and (or (<= main_n 28) (<= main_i 56)) (or (< 28 main_n) (<= 56 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11060#(and (or (<= main_n 28) (<= main_i 60)) (or (< 28 main_n) (<= 60 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:31,719 INFO L273 TraceCheckUtils]: 30: Hoare triple {11060#(and (or (<= main_n 28) (<= main_i 60)) (or (< 28 main_n) (<= 60 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11060#(and (or (<= main_n 28) (<= main_i 60)) (or (< 28 main_n) (<= 60 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:31,720 INFO L273 TraceCheckUtils]: 31: Hoare triple {11060#(and (or (<= main_n 28) (<= main_i 60)) (or (< 28 main_n) (<= 60 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11061#(and (or (<= 64 main_i) (< 28 main_n)) (or (<= main_i 64) (<= main_n 28)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:31,721 INFO L273 TraceCheckUtils]: 32: Hoare triple {11061#(and (or (<= 64 main_i) (< 28 main_n)) (or (<= main_i 64) (<= main_n 28)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11061#(and (or (<= 64 main_i) (< 28 main_n)) (or (<= main_i 64) (<= main_n 28)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:31,722 INFO L273 TraceCheckUtils]: 33: Hoare triple {11061#(and (or (<= 64 main_i) (< 28 main_n)) (or (<= main_i 64) (<= main_n 28)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11062#(and (or (<= main_n 28) (<= main_i 68)) (or (< 28 main_n) (<= 68 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:31,723 INFO L273 TraceCheckUtils]: 34: Hoare triple {11062#(and (or (<= main_n 28) (<= main_i 68)) (or (< 28 main_n) (<= 68 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11062#(and (or (<= main_n 28) (<= main_i 68)) (or (< 28 main_n) (<= 68 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:31,724 INFO L273 TraceCheckUtils]: 35: Hoare triple {11062#(and (or (<= main_n 28) (<= main_i 68)) (or (< 28 main_n) (<= 68 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11063#(and (or (<= main_n 28) (<= main_i 72)) (or (<= 72 main_i) (< 28 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:31,725 INFO L273 TraceCheckUtils]: 36: Hoare triple {11063#(and (or (<= main_n 28) (<= main_i 72)) (or (<= 72 main_i) (< 28 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11063#(and (or (<= main_n 28) (<= main_i 72)) (or (<= 72 main_i) (< 28 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:31,726 INFO L273 TraceCheckUtils]: 37: Hoare triple {11063#(and (or (<= main_n 28) (<= main_i 72)) (or (<= 72 main_i) (< 28 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11064#(and (or (<= main_i 76) (<= main_n 28)) (= 23 (select main_a (* 4 main_n))) (or (<= 76 main_i) (< 28 main_n)))} is VALID [2019-01-31 14:33:31,726 INFO L273 TraceCheckUtils]: 38: Hoare triple {11064#(and (or (<= main_i 76) (<= main_n 28)) (= 23 (select main_a (* 4 main_n))) (or (<= 76 main_i) (< 28 main_n)))} assume i <= n * 4; {11064#(and (or (<= main_i 76) (<= main_n 28)) (= 23 (select main_a (* 4 main_n))) (or (<= 76 main_i) (< 28 main_n)))} is VALID [2019-01-31 14:33:31,727 INFO L273 TraceCheckUtils]: 39: Hoare triple {11064#(and (or (<= main_i 76) (<= main_n 28)) (= 23 (select main_a (* 4 main_n))) (or (<= 76 main_i) (< 28 main_n)))} assume a[i] != 23;i := i + 4; {11065#(and (or (<= main_n 28) (<= main_i 80)) (or (< 28 main_n) (<= 80 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:31,728 INFO L273 TraceCheckUtils]: 40: Hoare triple {11065#(and (or (<= main_n 28) (<= main_i 80)) (or (< 28 main_n) (<= 80 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11065#(and (or (<= main_n 28) (<= main_i 80)) (or (< 28 main_n) (<= 80 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:31,729 INFO L273 TraceCheckUtils]: 41: Hoare triple {11065#(and (or (<= main_n 28) (<= main_i 80)) (or (< 28 main_n) (<= 80 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11066#(and (or (<= main_i 84) (<= main_n 28)) (or (< 28 main_n) (<= 84 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:31,730 INFO L273 TraceCheckUtils]: 42: Hoare triple {11066#(and (or (<= main_i 84) (<= main_n 28)) (or (< 28 main_n) (<= 84 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11066#(and (or (<= main_i 84) (<= main_n 28)) (or (< 28 main_n) (<= 84 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:31,731 INFO L273 TraceCheckUtils]: 43: Hoare triple {11066#(and (or (<= main_i 84) (<= main_n 28)) (or (< 28 main_n) (<= 84 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11067#(and (or (< 28 main_n) (<= 88 main_i)) (or (<= main_i 88) (<= main_n 28)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:31,732 INFO L273 TraceCheckUtils]: 44: Hoare triple {11067#(and (or (< 28 main_n) (<= 88 main_i)) (or (<= main_i 88) (<= main_n 28)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11067#(and (or (< 28 main_n) (<= 88 main_i)) (or (<= main_i 88) (<= main_n 28)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:31,733 INFO L273 TraceCheckUtils]: 45: Hoare triple {11067#(and (or (< 28 main_n) (<= 88 main_i)) (or (<= main_i 88) (<= main_n 28)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11068#(and (or (< 28 main_n) (<= 92 main_i)) (or (<= main_i 92) (<= main_n 28)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:31,734 INFO L273 TraceCheckUtils]: 46: Hoare triple {11068#(and (or (< 28 main_n) (<= 92 main_i)) (or (<= main_i 92) (<= main_n 28)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11068#(and (or (< 28 main_n) (<= 92 main_i)) (or (<= main_i 92) (<= main_n 28)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:31,735 INFO L273 TraceCheckUtils]: 47: Hoare triple {11068#(and (or (< 28 main_n) (<= 92 main_i)) (or (<= main_i 92) (<= main_n 28)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11069#(and (or (< 28 main_n) (<= 96 main_i)) (or (<= main_i 96) (<= main_n 28)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:31,736 INFO L273 TraceCheckUtils]: 48: Hoare triple {11069#(and (or (< 28 main_n) (<= 96 main_i)) (or (<= main_i 96) (<= main_n 28)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11069#(and (or (< 28 main_n) (<= 96 main_i)) (or (<= main_i 96) (<= main_n 28)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:31,740 INFO L273 TraceCheckUtils]: 49: Hoare triple {11069#(and (or (< 28 main_n) (<= 96 main_i)) (or (<= main_i 96) (<= main_n 28)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11070#(and (or (<= main_i 100) (<= main_n 28)) (= 23 (select main_a (* 4 main_n))) (or (< 28 main_n) (<= 100 main_i)))} is VALID [2019-01-31 14:33:31,741 INFO L273 TraceCheckUtils]: 50: Hoare triple {11070#(and (or (<= main_i 100) (<= main_n 28)) (= 23 (select main_a (* 4 main_n))) (or (< 28 main_n) (<= 100 main_i)))} assume i <= n * 4; {11070#(and (or (<= main_i 100) (<= main_n 28)) (= 23 (select main_a (* 4 main_n))) (or (< 28 main_n) (<= 100 main_i)))} is VALID [2019-01-31 14:33:31,741 INFO L273 TraceCheckUtils]: 51: Hoare triple {11070#(and (or (<= main_i 100) (<= main_n 28)) (= 23 (select main_a (* 4 main_n))) (or (< 28 main_n) (<= 100 main_i)))} assume a[i] != 23;i := i + 4; {11071#(and (or (< 28 main_n) (<= 104 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 104) (<= main_n 28)))} is VALID [2019-01-31 14:33:31,742 INFO L273 TraceCheckUtils]: 52: Hoare triple {11071#(and (or (< 28 main_n) (<= 104 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 104) (<= main_n 28)))} assume i <= n * 4; {11071#(and (or (< 28 main_n) (<= 104 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 104) (<= main_n 28)))} is VALID [2019-01-31 14:33:31,742 INFO L273 TraceCheckUtils]: 53: Hoare triple {11071#(and (or (< 28 main_n) (<= 104 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 104) (<= main_n 28)))} assume a[i] != 23;i := i + 4; {11072#(and (or (<= main_n 28) (<= main_i 108)) (or (< 28 main_n) (<= 108 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:31,743 INFO L273 TraceCheckUtils]: 54: Hoare triple {11072#(and (or (<= main_n 28) (<= main_i 108)) (or (< 28 main_n) (<= 108 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11072#(and (or (<= main_n 28) (<= main_i 108)) (or (< 28 main_n) (<= 108 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:31,744 INFO L273 TraceCheckUtils]: 55: Hoare triple {11072#(and (or (<= main_n 28) (<= main_i 108)) (or (< 28 main_n) (<= 108 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11073#(and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (or (= (* 4 main_n) main_i) (and (or (<= (* 4 main_n) main_i) (< 28 main_n)) (or (<= main_n 28) (<= main_i 112)))))} is VALID [2019-01-31 14:33:31,744 INFO L273 TraceCheckUtils]: 56: Hoare triple {11073#(and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (or (= (* 4 main_n) main_i) (and (or (<= (* 4 main_n) main_i) (< 28 main_n)) (or (<= main_n 28) (<= main_i 112)))))} assume i <= n * 4; {11074#(and (or (= (* 4 main_n) main_i) (and (< 28 main_n) (<= main_i 112))) (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))))} is VALID [2019-01-31 14:33:31,745 INFO L273 TraceCheckUtils]: 57: Hoare triple {11074#(and (or (= (* 4 main_n) main_i) (and (< 28 main_n) (<= main_i 112))) (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))))} assume a[i] != 23;i := i + 4; {11075#(and (<= main_i 116) (<= 29 main_n))} is VALID [2019-01-31 14:33:31,745 INFO L273 TraceCheckUtils]: 58: Hoare triple {11075#(and (<= main_i 116) (<= 29 main_n))} assume !(i <= n * 4); {11044#false} is VALID [2019-01-31 14:33:31,762 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 14:33:31,763 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-31 14:33:31,763 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-01-31 14:33:31,763 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-01-31 14:33:31,763 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-01-31 14:33:31,763 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-31 14:33:31,763 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 14:33:31,772 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-31 14:33:31,772 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2019-01-31 14:33:31,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-31 14:33:31,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-31 14:33:31,800 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-31 14:33:31,833 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 14:33:31,834 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-01-31 14:33:31,838 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-31 14:33:31,838 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2019-01-31 14:33:31,840 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-01-31 14:33:31,841 WARN L398 uantifierElimination]: Input elimination task: ∃ [v_main_a_32]. (and (= (store v_main_a_32 (* 4 main_n) 23) main_a) (= main_i 0)) [2019-01-31 14:33:31,841 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2019-01-31 14:33:33,310 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2019-01-31 14:33:33,326 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-01-31 14:33:33,330 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-31 14:33:33,330 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2019-01-31 14:33:33,333 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-01-31 14:33:33,333 WARN L398 uantifierElimination]: Input elimination task: ∃ [main_a]. (let ((.cse0 (* 4 main_n))) (and (<= 112 .cse0) (<= main_i 116) (= 23 (select main_a .cse0)) (not (= (select main_a 112) 23)))) [2019-01-31 14:33:33,333 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (let ((.cse0 (* 4 main_n))) (and (not (= 112 .cse0)) (<= 112 .cse0) (<= main_i 116))) [2019-01-31 14:33:33,370 INFO L273 TraceCheckUtils]: 0: Hoare triple {11043#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {11079#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:33,370 INFO L273 TraceCheckUtils]: 1: Hoare triple {11079#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11083#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2019-01-31 14:33:33,371 INFO L273 TraceCheckUtils]: 2: Hoare triple {11083#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume i <= n * 4; {11083#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2019-01-31 14:33:33,371 INFO L273 TraceCheckUtils]: 3: Hoare triple {11083#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume a[i] != 23;i := i + 4; {11090#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:33,372 INFO L273 TraceCheckUtils]: 4: Hoare triple {11090#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11090#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:33,372 INFO L273 TraceCheckUtils]: 5: Hoare triple {11090#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11097#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2019-01-31 14:33:33,376 INFO L273 TraceCheckUtils]: 6: Hoare triple {11097#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume i <= n * 4; {11097#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2019-01-31 14:33:33,377 INFO L273 TraceCheckUtils]: 7: Hoare triple {11097#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume a[i] != 23;i := i + 4; {11104#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:33,377 INFO L273 TraceCheckUtils]: 8: Hoare triple {11104#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11104#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:33,378 INFO L273 TraceCheckUtils]: 9: Hoare triple {11104#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11111#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:33,378 INFO L273 TraceCheckUtils]: 10: Hoare triple {11111#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11111#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:33,378 INFO L273 TraceCheckUtils]: 11: Hoare triple {11111#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11118#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:33,379 INFO L273 TraceCheckUtils]: 12: Hoare triple {11118#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11118#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:33,379 INFO L273 TraceCheckUtils]: 13: Hoare triple {11118#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11125#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:33,380 INFO L273 TraceCheckUtils]: 14: Hoare triple {11125#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11125#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:33,380 INFO L273 TraceCheckUtils]: 15: Hoare triple {11125#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11132#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:33,381 INFO L273 TraceCheckUtils]: 16: Hoare triple {11132#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11132#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:33,382 INFO L273 TraceCheckUtils]: 17: Hoare triple {11132#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11139#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:33,382 INFO L273 TraceCheckUtils]: 18: Hoare triple {11139#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11139#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:33,383 INFO L273 TraceCheckUtils]: 19: Hoare triple {11139#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11146#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:33,384 INFO L273 TraceCheckUtils]: 20: Hoare triple {11146#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11146#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:33,385 INFO L273 TraceCheckUtils]: 21: Hoare triple {11146#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11153#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:33,385 INFO L273 TraceCheckUtils]: 22: Hoare triple {11153#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11153#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:33,386 INFO L273 TraceCheckUtils]: 23: Hoare triple {11153#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11160#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:33,387 INFO L273 TraceCheckUtils]: 24: Hoare triple {11160#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11160#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:33,407 INFO L273 TraceCheckUtils]: 25: Hoare triple {11160#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11167#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:33,407 INFO L273 TraceCheckUtils]: 26: Hoare triple {11167#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11167#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:33,421 INFO L273 TraceCheckUtils]: 27: Hoare triple {11167#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11174#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:33,422 INFO L273 TraceCheckUtils]: 28: Hoare triple {11174#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11174#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:33,423 INFO L273 TraceCheckUtils]: 29: Hoare triple {11174#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11181#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:33,423 INFO L273 TraceCheckUtils]: 30: Hoare triple {11181#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11181#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:33,423 INFO L273 TraceCheckUtils]: 31: Hoare triple {11181#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11188#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:33,424 INFO L273 TraceCheckUtils]: 32: Hoare triple {11188#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11188#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:33,425 INFO L273 TraceCheckUtils]: 33: Hoare triple {11188#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11195#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:33,425 INFO L273 TraceCheckUtils]: 34: Hoare triple {11195#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11195#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:33,426 INFO L273 TraceCheckUtils]: 35: Hoare triple {11195#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11202#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:33,427 INFO L273 TraceCheckUtils]: 36: Hoare triple {11202#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11202#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:33,427 INFO L273 TraceCheckUtils]: 37: Hoare triple {11202#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11209#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:33,432 INFO L273 TraceCheckUtils]: 38: Hoare triple {11209#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11209#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:33,433 INFO L273 TraceCheckUtils]: 39: Hoare triple {11209#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11216#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} is VALID [2019-01-31 14:33:33,433 INFO L273 TraceCheckUtils]: 40: Hoare triple {11216#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} assume i <= n * 4; {11216#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} is VALID [2019-01-31 14:33:33,434 INFO L273 TraceCheckUtils]: 41: Hoare triple {11216#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} assume a[i] != 23;i := i + 4; {11223#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:33,434 INFO L273 TraceCheckUtils]: 42: Hoare triple {11223#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11223#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:33,435 INFO L273 TraceCheckUtils]: 43: Hoare triple {11223#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11230#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:33,435 INFO L273 TraceCheckUtils]: 44: Hoare triple {11230#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11230#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:33,436 INFO L273 TraceCheckUtils]: 45: Hoare triple {11230#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11237#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:33,436 INFO L273 TraceCheckUtils]: 46: Hoare triple {11237#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11237#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:33,437 INFO L273 TraceCheckUtils]: 47: Hoare triple {11237#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11244#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:33,438 INFO L273 TraceCheckUtils]: 48: Hoare triple {11244#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11244#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:33,438 INFO L273 TraceCheckUtils]: 49: Hoare triple {11244#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11251#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:33,439 INFO L273 TraceCheckUtils]: 50: Hoare triple {11251#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11251#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:33,440 INFO L273 TraceCheckUtils]: 51: Hoare triple {11251#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11258#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:33,440 INFO L273 TraceCheckUtils]: 52: Hoare triple {11258#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11258#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:33,441 INFO L273 TraceCheckUtils]: 53: Hoare triple {11258#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11265#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:33,442 INFO L273 TraceCheckUtils]: 54: Hoare triple {11265#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11265#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:33,443 INFO L273 TraceCheckUtils]: 55: Hoare triple {11265#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11272#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:33,444 INFO L273 TraceCheckUtils]: 56: Hoare triple {11272#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11276#(and (= main_i 112) (<= main_i (* 4 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:33,445 INFO L273 TraceCheckUtils]: 57: Hoare triple {11276#(and (= main_i 112) (<= main_i (* 4 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11075#(and (<= main_i 116) (<= 29 main_n))} is VALID [2019-01-31 14:33:33,446 INFO L273 TraceCheckUtils]: 58: Hoare triple {11075#(and (<= main_i 116) (<= 29 main_n))} assume !(i <= n * 4); {11044#false} is VALID [2019-01-31 14:33:33,456 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 14:33:33,456 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2019-01-31 14:33:36,244 INFO L273 TraceCheckUtils]: 58: Hoare triple {11283#(<= main_i (* 4 main_n))} assume !(i <= n * 4); {11044#false} is VALID [2019-01-31 14:33:36,246 INFO L273 TraceCheckUtils]: 57: Hoare triple {11287#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} assume a[i] != 23;i := i + 4; {11283#(<= main_i (* 4 main_n))} is VALID [2019-01-31 14:33:36,246 INFO L273 TraceCheckUtils]: 56: Hoare triple {11291#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} assume i <= n * 4; {11287#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} is VALID [2019-01-31 14:33:36,247 INFO L273 TraceCheckUtils]: 55: Hoare triple {11295#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume a[i] != 23;i := i + 4; {11291#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} is VALID [2019-01-31 14:33:36,248 INFO L273 TraceCheckUtils]: 54: Hoare triple {11295#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume i <= n * 4; {11295#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2019-01-31 14:33:36,249 INFO L273 TraceCheckUtils]: 53: Hoare triple {11302#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume a[i] != 23;i := i + 4; {11295#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2019-01-31 14:33:36,249 INFO L273 TraceCheckUtils]: 52: Hoare triple {11302#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume i <= n * 4; {11302#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2019-01-31 14:33:36,251 INFO L273 TraceCheckUtils]: 51: Hoare triple {11309#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume a[i] != 23;i := i + 4; {11302#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2019-01-31 14:33:36,251 INFO L273 TraceCheckUtils]: 50: Hoare triple {11309#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume i <= n * 4; {11309#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2019-01-31 14:33:36,252 INFO L273 TraceCheckUtils]: 49: Hoare triple {11316#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume a[i] != 23;i := i + 4; {11309#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2019-01-31 14:33:36,253 INFO L273 TraceCheckUtils]: 48: Hoare triple {11316#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume i <= n * 4; {11316#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2019-01-31 14:33:36,254 INFO L273 TraceCheckUtils]: 47: Hoare triple {11323#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {11316#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2019-01-31 14:33:36,254 INFO L273 TraceCheckUtils]: 46: Hoare triple {11323#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume i <= n * 4; {11323#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2019-01-31 14:33:36,255 INFO L273 TraceCheckUtils]: 45: Hoare triple {11330#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume a[i] != 23;i := i + 4; {11323#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2019-01-31 14:33:36,256 INFO L273 TraceCheckUtils]: 44: Hoare triple {11330#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume i <= n * 4; {11330#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2019-01-31 14:33:36,257 INFO L273 TraceCheckUtils]: 43: Hoare triple {11337#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {11330#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2019-01-31 14:33:36,257 INFO L273 TraceCheckUtils]: 42: Hoare triple {11337#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume i <= n * 4; {11337#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2019-01-31 14:33:36,258 INFO L273 TraceCheckUtils]: 41: Hoare triple {11344#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {11337#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2019-01-31 14:33:36,259 INFO L273 TraceCheckUtils]: 40: Hoare triple {11344#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume i <= n * 4; {11344#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2019-01-31 14:33:36,260 INFO L273 TraceCheckUtils]: 39: Hoare triple {11351#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {11344#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2019-01-31 14:33:36,261 INFO L273 TraceCheckUtils]: 38: Hoare triple {11351#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume i <= n * 4; {11351#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2019-01-31 14:33:36,262 INFO L273 TraceCheckUtils]: 37: Hoare triple {11358#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} assume a[i] != 23;i := i + 4; {11351#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2019-01-31 14:33:36,262 INFO L273 TraceCheckUtils]: 36: Hoare triple {11358#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} assume i <= n * 4; {11358#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} is VALID [2019-01-31 14:33:36,263 INFO L273 TraceCheckUtils]: 35: Hoare triple {11365#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {11358#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} is VALID [2019-01-31 14:33:36,264 INFO L273 TraceCheckUtils]: 34: Hoare triple {11365#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} assume i <= n * 4; {11365#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} is VALID [2019-01-31 14:33:36,265 INFO L273 TraceCheckUtils]: 33: Hoare triple {11372#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {11365#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} is VALID [2019-01-31 14:33:36,265 INFO L273 TraceCheckUtils]: 32: Hoare triple {11372#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} assume i <= n * 4; {11372#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} is VALID [2019-01-31 14:33:36,266 INFO L273 TraceCheckUtils]: 31: Hoare triple {11379#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} assume a[i] != 23;i := i + 4; {11372#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} is VALID [2019-01-31 14:33:36,267 INFO L273 TraceCheckUtils]: 30: Hoare triple {11379#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} assume i <= n * 4; {11379#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} is VALID [2019-01-31 14:33:36,268 INFO L273 TraceCheckUtils]: 29: Hoare triple {11386#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {11379#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} is VALID [2019-01-31 14:33:36,269 INFO L273 TraceCheckUtils]: 28: Hoare triple {11386#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} assume i <= n * 4; {11386#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} is VALID [2019-01-31 14:33:36,270 INFO L273 TraceCheckUtils]: 27: Hoare triple {11393#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} assume a[i] != 23;i := i + 4; {11386#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} is VALID [2019-01-31 14:33:36,270 INFO L273 TraceCheckUtils]: 26: Hoare triple {11393#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} assume i <= n * 4; {11393#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} is VALID [2019-01-31 14:33:36,271 INFO L273 TraceCheckUtils]: 25: Hoare triple {11400#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} assume a[i] != 23;i := i + 4; {11393#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} is VALID [2019-01-31 14:33:36,272 INFO L273 TraceCheckUtils]: 24: Hoare triple {11400#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} assume i <= n * 4; {11400#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} is VALID [2019-01-31 14:33:36,273 INFO L273 TraceCheckUtils]: 23: Hoare triple {11407#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} assume a[i] != 23;i := i + 4; {11400#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} is VALID [2019-01-31 14:33:36,273 INFO L273 TraceCheckUtils]: 22: Hoare triple {11407#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} assume i <= n * 4; {11407#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} is VALID [2019-01-31 14:33:36,274 INFO L273 TraceCheckUtils]: 21: Hoare triple {11414#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} assume a[i] != 23;i := i + 4; {11407#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} is VALID [2019-01-31 14:33:36,275 INFO L273 TraceCheckUtils]: 20: Hoare triple {11414#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} assume i <= n * 4; {11414#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} is VALID [2019-01-31 14:33:36,276 INFO L273 TraceCheckUtils]: 19: Hoare triple {11421#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} assume a[i] != 23;i := i + 4; {11414#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} is VALID [2019-01-31 14:33:36,276 INFO L273 TraceCheckUtils]: 18: Hoare triple {11421#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} assume i <= n * 4; {11421#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} is VALID [2019-01-31 14:33:36,278 INFO L273 TraceCheckUtils]: 17: Hoare triple {11428#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} assume a[i] != 23;i := i + 4; {11421#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} is VALID [2019-01-31 14:33:36,278 INFO L273 TraceCheckUtils]: 16: Hoare triple {11428#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} assume i <= n * 4; {11428#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} is VALID [2019-01-31 14:33:36,279 INFO L273 TraceCheckUtils]: 15: Hoare triple {11435#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {11428#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} is VALID [2019-01-31 14:33:36,280 INFO L273 TraceCheckUtils]: 14: Hoare triple {11435#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} assume i <= n * 4; {11435#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} is VALID [2019-01-31 14:33:36,281 INFO L273 TraceCheckUtils]: 13: Hoare triple {11442#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {11435#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} is VALID [2019-01-31 14:33:36,281 INFO L273 TraceCheckUtils]: 12: Hoare triple {11442#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} assume i <= n * 4; {11442#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} is VALID [2019-01-31 14:33:36,282 INFO L273 TraceCheckUtils]: 11: Hoare triple {11449#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {11442#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} is VALID [2019-01-31 14:33:36,283 INFO L273 TraceCheckUtils]: 10: Hoare triple {11449#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} assume i <= n * 4; {11449#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} is VALID [2019-01-31 14:33:36,284 INFO L273 TraceCheckUtils]: 9: Hoare triple {11456#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} assume a[i] != 23;i := i + 4; {11449#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} is VALID [2019-01-31 14:33:36,284 INFO L273 TraceCheckUtils]: 8: Hoare triple {11456#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} assume i <= n * 4; {11456#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} is VALID [2019-01-31 14:33:36,286 INFO L273 TraceCheckUtils]: 7: Hoare triple {11463#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {11456#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} is VALID [2019-01-31 14:33:36,286 INFO L273 TraceCheckUtils]: 6: Hoare triple {11463#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} assume i <= n * 4; {11463#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} is VALID [2019-01-31 14:33:36,287 INFO L273 TraceCheckUtils]: 5: Hoare triple {11470#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} assume a[i] != 23;i := i + 4; {11463#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} is VALID [2019-01-31 14:33:36,288 INFO L273 TraceCheckUtils]: 4: Hoare triple {11470#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} assume i <= n * 4; {11470#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} is VALID [2019-01-31 14:33:36,289 INFO L273 TraceCheckUtils]: 3: Hoare triple {11477#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} assume a[i] != 23;i := i + 4; {11470#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} is VALID [2019-01-31 14:33:36,291 INFO L273 TraceCheckUtils]: 2: Hoare triple {11477#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} assume i <= n * 4; {11477#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} is VALID [2019-01-31 14:33:36,292 INFO L273 TraceCheckUtils]: 1: Hoare triple {11484#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} assume a[i] != 23;i := i + 4; {11477#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} is VALID [2019-01-31 14:33:36,293 INFO L273 TraceCheckUtils]: 0: Hoare triple {11043#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {11484#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} is VALID [2019-01-31 14:33:36,307 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 14:33:36,326 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-01-31 14:33:36,326 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [31, 31, 31] total 92 [2019-01-31 14:33:36,326 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-01-31 14:33:36,327 INFO L78 Accepts]: Start accepts. Automaton has 63 states. Word has length 59 [2019-01-31 14:33:36,327 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-01-31 14:33:36,327 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 63 states. [2019-01-31 14:33:36,463 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 14:33:36,463 INFO L459 AbstractCegarLoop]: Interpolant automaton has 63 states [2019-01-31 14:33:36,464 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 63 interpolants. [2019-01-31 14:33:36,464 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1124, Invalid=7618, Unknown=0, NotChecked=0, Total=8742 [2019-01-31 14:33:36,464 INFO L87 Difference]: Start difference. First operand 60 states and 60 transitions. Second operand 63 states. [2019-01-31 14:33:41,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 14:33:41,676 INFO L93 Difference]: Finished difference Result 64 states and 64 transitions. [2019-01-31 14:33:41,676 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2019-01-31 14:33:41,677 INFO L78 Accepts]: Start accepts. Automaton has 63 states. Word has length 59 [2019-01-31 14:33:41,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-31 14:33:41,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2019-01-31 14:33:41,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 64 transitions. [2019-01-31 14:33:41,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2019-01-31 14:33:41,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 64 transitions. [2019-01-31 14:33:41,679 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 33 states and 64 transitions. [2019-01-31 14:33:41,745 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 14:33:41,746 INFO L225 Difference]: With dead ends: 64 [2019-01-31 14:33:41,747 INFO L226 Difference]: Without dead ends: 63 [2019-01-31 14:33:41,747 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 54 SyntacticMatches, 1 SemanticMatches, 92 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1980 ImplicationChecksByTransitivity, 5.5s TimeCoverageRelationStatistics Valid=1124, Invalid=7618, Unknown=0, NotChecked=0, Total=8742 [2019-01-31 14:33:41,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2019-01-31 14:33:41,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 62. [2019-01-31 14:33:41,804 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-01-31 14:33:41,804 INFO L82 GeneralOperation]: Start isEquivalent. First operand 63 states. Second operand 62 states. [2019-01-31 14:33:41,804 INFO L74 IsIncluded]: Start isIncluded. First operand 63 states. Second operand 62 states. [2019-01-31 14:33:41,804 INFO L87 Difference]: Start difference. First operand 63 states. Second operand 62 states. [2019-01-31 14:33:41,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 14:33:41,806 INFO L93 Difference]: Finished difference Result 63 states and 63 transitions. [2019-01-31 14:33:41,806 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 63 transitions. [2019-01-31 14:33:41,806 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-31 14:33:41,806 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-01-31 14:33:41,806 INFO L74 IsIncluded]: Start isIncluded. First operand 62 states. Second operand 63 states. [2019-01-31 14:33:41,807 INFO L87 Difference]: Start difference. First operand 62 states. Second operand 63 states. [2019-01-31 14:33:41,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 14:33:41,807 INFO L93 Difference]: Finished difference Result 63 states and 63 transitions. [2019-01-31 14:33:41,808 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 63 transitions. [2019-01-31 14:33:41,808 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-31 14:33:41,808 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-01-31 14:33:41,808 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-01-31 14:33:41,808 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-01-31 14:33:41,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62 states. [2019-01-31 14:33:41,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 62 transitions. [2019-01-31 14:33:41,809 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 62 transitions. Word has length 59 [2019-01-31 14:33:41,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-31 14:33:41,810 INFO L480 AbstractCegarLoop]: Abstraction has 62 states and 62 transitions. [2019-01-31 14:33:41,810 INFO L481 AbstractCegarLoop]: Interpolant automaton has 63 states. [2019-01-31 14:33:41,810 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 62 transitions. [2019-01-31 14:33:41,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2019-01-31 14:33:41,810 INFO L394 BasicCegarLoop]: Found error trace [2019-01-31 14:33:41,811 INFO L402 BasicCegarLoop]: trace histogram [30, 29, 1, 1] [2019-01-31 14:33:41,811 INFO L423 AbstractCegarLoop]: === Iteration 30 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-01-31 14:33:41,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-31 14:33:41,811 INFO L82 PathProgramCache]: Analyzing trace with hash -176267942, now seen corresponding path program 29 times [2019-01-31 14:33:41,811 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-01-31 14:33:41,812 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-31 14:33:41,812 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-31 14:33:41,812 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-31 14:33:41,812 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-01-31 14:33:41,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-31 14:33:43,256 INFO L273 TraceCheckUtils]: 0: Hoare triple {11800#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {11802#(and (or (<= 0 main_i) (< 29 main_n)) (or (<= main_n 29) (<= main_i 0)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:43,257 INFO L273 TraceCheckUtils]: 1: Hoare triple {11802#(and (or (<= 0 main_i) (< 29 main_n)) (or (<= main_n 29) (<= main_i 0)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11803#(and (or (<= main_n 29) (<= main_i 4)) (or (< 29 main_n) (<= 4 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:43,258 INFO L273 TraceCheckUtils]: 2: Hoare triple {11803#(and (or (<= main_n 29) (<= main_i 4)) (or (< 29 main_n) (<= 4 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11803#(and (or (<= main_n 29) (<= main_i 4)) (or (< 29 main_n) (<= 4 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:43,259 INFO L273 TraceCheckUtils]: 3: Hoare triple {11803#(and (or (<= main_n 29) (<= main_i 4)) (or (< 29 main_n) (<= 4 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11804#(and (or (<= main_n 29) (<= main_i 8)) (or (< 29 main_n) (<= 8 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:43,260 INFO L273 TraceCheckUtils]: 4: Hoare triple {11804#(and (or (<= main_n 29) (<= main_i 8)) (or (< 29 main_n) (<= 8 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11804#(and (or (<= main_n 29) (<= main_i 8)) (or (< 29 main_n) (<= 8 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:43,261 INFO L273 TraceCheckUtils]: 5: Hoare triple {11804#(and (or (<= main_n 29) (<= main_i 8)) (or (< 29 main_n) (<= 8 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11805#(and (or (< 29 main_n) (<= 12 main_i)) (or (<= main_n 29) (<= main_i 12)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:43,262 INFO L273 TraceCheckUtils]: 6: Hoare triple {11805#(and (or (< 29 main_n) (<= 12 main_i)) (or (<= main_n 29) (<= main_i 12)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11805#(and (or (< 29 main_n) (<= 12 main_i)) (or (<= main_n 29) (<= main_i 12)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:43,263 INFO L273 TraceCheckUtils]: 7: Hoare triple {11805#(and (or (< 29 main_n) (<= 12 main_i)) (or (<= main_n 29) (<= main_i 12)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11806#(and (or (<= main_n 29) (<= main_i 16)) (or (< 29 main_n) (<= 16 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:43,264 INFO L273 TraceCheckUtils]: 8: Hoare triple {11806#(and (or (<= main_n 29) (<= main_i 16)) (or (< 29 main_n) (<= 16 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11806#(and (or (<= main_n 29) (<= main_i 16)) (or (< 29 main_n) (<= 16 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:43,265 INFO L273 TraceCheckUtils]: 9: Hoare triple {11806#(and (or (<= main_n 29) (<= main_i 16)) (or (< 29 main_n) (<= 16 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11807#(and (or (< 29 main_n) (<= 20 main_i)) (or (<= main_n 29) (<= main_i 20)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:43,265 INFO L273 TraceCheckUtils]: 10: Hoare triple {11807#(and (or (< 29 main_n) (<= 20 main_i)) (or (<= main_n 29) (<= main_i 20)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11807#(and (or (< 29 main_n) (<= 20 main_i)) (or (<= main_n 29) (<= main_i 20)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:43,266 INFO L273 TraceCheckUtils]: 11: Hoare triple {11807#(and (or (< 29 main_n) (<= 20 main_i)) (or (<= main_n 29) (<= main_i 20)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11808#(and (or (< 29 main_n) (<= 24 main_i)) (or (<= main_n 29) (<= main_i 24)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:43,267 INFO L273 TraceCheckUtils]: 12: Hoare triple {11808#(and (or (< 29 main_n) (<= 24 main_i)) (or (<= main_n 29) (<= main_i 24)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11808#(and (or (< 29 main_n) (<= 24 main_i)) (or (<= main_n 29) (<= main_i 24)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:43,268 INFO L273 TraceCheckUtils]: 13: Hoare triple {11808#(and (or (< 29 main_n) (<= 24 main_i)) (or (<= main_n 29) (<= main_i 24)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11809#(and (or (<= 28 main_i) (< 29 main_n)) (or (<= main_n 29) (<= main_i 28)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:43,269 INFO L273 TraceCheckUtils]: 14: Hoare triple {11809#(and (or (<= 28 main_i) (< 29 main_n)) (or (<= main_n 29) (<= main_i 28)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11809#(and (or (<= 28 main_i) (< 29 main_n)) (or (<= main_n 29) (<= main_i 28)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:43,270 INFO L273 TraceCheckUtils]: 15: Hoare triple {11809#(and (or (<= 28 main_i) (< 29 main_n)) (or (<= main_n 29) (<= main_i 28)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11810#(and (or (<= main_i 32) (<= main_n 29)) (or (<= 32 main_i) (< 29 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:43,271 INFO L273 TraceCheckUtils]: 16: Hoare triple {11810#(and (or (<= main_i 32) (<= main_n 29)) (or (<= 32 main_i) (< 29 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11810#(and (or (<= main_i 32) (<= main_n 29)) (or (<= 32 main_i) (< 29 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:43,272 INFO L273 TraceCheckUtils]: 17: Hoare triple {11810#(and (or (<= main_i 32) (<= main_n 29)) (or (<= 32 main_i) (< 29 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11811#(and (or (<= main_i 36) (<= main_n 29)) (or (< 29 main_n) (<= 36 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:43,273 INFO L273 TraceCheckUtils]: 18: Hoare triple {11811#(and (or (<= main_i 36) (<= main_n 29)) (or (< 29 main_n) (<= 36 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11811#(and (or (<= main_i 36) (<= main_n 29)) (or (< 29 main_n) (<= 36 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:43,274 INFO L273 TraceCheckUtils]: 19: Hoare triple {11811#(and (or (<= main_i 36) (<= main_n 29)) (or (< 29 main_n) (<= 36 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11812#(and (or (<= 40 main_i) (< 29 main_n)) (or (<= main_n 29) (<= main_i 40)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:43,274 INFO L273 TraceCheckUtils]: 20: Hoare triple {11812#(and (or (<= 40 main_i) (< 29 main_n)) (or (<= main_n 29) (<= main_i 40)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11812#(and (or (<= 40 main_i) (< 29 main_n)) (or (<= main_n 29) (<= main_i 40)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:43,275 INFO L273 TraceCheckUtils]: 21: Hoare triple {11812#(and (or (<= 40 main_i) (< 29 main_n)) (or (<= main_n 29) (<= main_i 40)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11813#(and (or (<= main_n 29) (<= main_i 44)) (or (<= 44 main_i) (< 29 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:43,276 INFO L273 TraceCheckUtils]: 22: Hoare triple {11813#(and (or (<= main_n 29) (<= main_i 44)) (or (<= 44 main_i) (< 29 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11813#(and (or (<= main_n 29) (<= main_i 44)) (or (<= 44 main_i) (< 29 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:43,277 INFO L273 TraceCheckUtils]: 23: Hoare triple {11813#(and (or (<= main_n 29) (<= main_i 44)) (or (<= 44 main_i) (< 29 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11814#(and (or (<= main_n 29) (<= main_i 48)) (or (<= 48 main_i) (< 29 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:43,278 INFO L273 TraceCheckUtils]: 24: Hoare triple {11814#(and (or (<= main_n 29) (<= main_i 48)) (or (<= 48 main_i) (< 29 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11814#(and (or (<= main_n 29) (<= main_i 48)) (or (<= 48 main_i) (< 29 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:43,279 INFO L273 TraceCheckUtils]: 25: Hoare triple {11814#(and (or (<= main_n 29) (<= main_i 48)) (or (<= 48 main_i) (< 29 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11815#(and (or (<= main_i 52) (<= main_n 29)) (or (< 29 main_n) (<= 52 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:43,280 INFO L273 TraceCheckUtils]: 26: Hoare triple {11815#(and (or (<= main_i 52) (<= main_n 29)) (or (< 29 main_n) (<= 52 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11815#(and (or (<= main_i 52) (<= main_n 29)) (or (< 29 main_n) (<= 52 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:43,281 INFO L273 TraceCheckUtils]: 27: Hoare triple {11815#(and (or (<= main_i 52) (<= main_n 29)) (or (< 29 main_n) (<= 52 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11816#(and (or (< 29 main_n) (<= 56 main_i)) (or (<= main_n 29) (<= main_i 56)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:43,281 INFO L273 TraceCheckUtils]: 28: Hoare triple {11816#(and (or (< 29 main_n) (<= 56 main_i)) (or (<= main_n 29) (<= main_i 56)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11816#(and (or (< 29 main_n) (<= 56 main_i)) (or (<= main_n 29) (<= main_i 56)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:43,282 INFO L273 TraceCheckUtils]: 29: Hoare triple {11816#(and (or (< 29 main_n) (<= 56 main_i)) (or (<= main_n 29) (<= main_i 56)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11817#(and (or (<= main_n 29) (<= main_i 60)) (= 23 (select main_a (* 4 main_n))) (or (< 29 main_n) (<= 60 main_i)))} is VALID [2019-01-31 14:33:43,283 INFO L273 TraceCheckUtils]: 30: Hoare triple {11817#(and (or (<= main_n 29) (<= main_i 60)) (= 23 (select main_a (* 4 main_n))) (or (< 29 main_n) (<= 60 main_i)))} assume i <= n * 4; {11817#(and (or (<= main_n 29) (<= main_i 60)) (= 23 (select main_a (* 4 main_n))) (or (< 29 main_n) (<= 60 main_i)))} is VALID [2019-01-31 14:33:43,284 INFO L273 TraceCheckUtils]: 31: Hoare triple {11817#(and (or (<= main_n 29) (<= main_i 60)) (= 23 (select main_a (* 4 main_n))) (or (< 29 main_n) (<= 60 main_i)))} assume a[i] != 23;i := i + 4; {11818#(and (or (<= main_n 29) (<= main_i 64)) (or (<= 64 main_i) (< 29 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:43,285 INFO L273 TraceCheckUtils]: 32: Hoare triple {11818#(and (or (<= main_n 29) (<= main_i 64)) (or (<= 64 main_i) (< 29 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11818#(and (or (<= main_n 29) (<= main_i 64)) (or (<= 64 main_i) (< 29 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:43,286 INFO L273 TraceCheckUtils]: 33: Hoare triple {11818#(and (or (<= main_n 29) (<= main_i 64)) (or (<= 64 main_i) (< 29 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11819#(and (or (<= main_n 29) (<= main_i 68)) (or (< 29 main_n) (<= 68 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:43,287 INFO L273 TraceCheckUtils]: 34: Hoare triple {11819#(and (or (<= main_n 29) (<= main_i 68)) (or (< 29 main_n) (<= 68 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11819#(and (or (<= main_n 29) (<= main_i 68)) (or (< 29 main_n) (<= 68 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:43,288 INFO L273 TraceCheckUtils]: 35: Hoare triple {11819#(and (or (<= main_n 29) (<= main_i 68)) (or (< 29 main_n) (<= 68 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11820#(and (or (<= main_n 29) (<= main_i 72)) (or (<= 72 main_i) (< 29 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:43,289 INFO L273 TraceCheckUtils]: 36: Hoare triple {11820#(and (or (<= main_n 29) (<= main_i 72)) (or (<= 72 main_i) (< 29 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11820#(and (or (<= main_n 29) (<= main_i 72)) (or (<= 72 main_i) (< 29 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:43,290 INFO L273 TraceCheckUtils]: 37: Hoare triple {11820#(and (or (<= main_n 29) (<= main_i 72)) (or (<= 72 main_i) (< 29 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11821#(and (or (<= 76 main_i) (< 29 main_n)) (or (<= main_i 76) (<= main_n 29)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:43,290 INFO L273 TraceCheckUtils]: 38: Hoare triple {11821#(and (or (<= 76 main_i) (< 29 main_n)) (or (<= main_i 76) (<= main_n 29)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11821#(and (or (<= 76 main_i) (< 29 main_n)) (or (<= main_i 76) (<= main_n 29)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:43,291 INFO L273 TraceCheckUtils]: 39: Hoare triple {11821#(and (or (<= 76 main_i) (< 29 main_n)) (or (<= main_i 76) (<= main_n 29)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11822#(and (or (< 29 main_n) (<= 80 main_i)) (or (<= main_n 29) (<= main_i 80)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:43,292 INFO L273 TraceCheckUtils]: 40: Hoare triple {11822#(and (or (< 29 main_n) (<= 80 main_i)) (or (<= main_n 29) (<= main_i 80)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11822#(and (or (< 29 main_n) (<= 80 main_i)) (or (<= main_n 29) (<= main_i 80)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:43,293 INFO L273 TraceCheckUtils]: 41: Hoare triple {11822#(and (or (< 29 main_n) (<= 80 main_i)) (or (<= main_n 29) (<= main_i 80)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11823#(and (or (< 29 main_n) (<= 84 main_i)) (or (<= main_n 29) (<= main_i 84)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:43,294 INFO L273 TraceCheckUtils]: 42: Hoare triple {11823#(and (or (< 29 main_n) (<= 84 main_i)) (or (<= main_n 29) (<= main_i 84)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11823#(and (or (< 29 main_n) (<= 84 main_i)) (or (<= main_n 29) (<= main_i 84)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:43,295 INFO L273 TraceCheckUtils]: 43: Hoare triple {11823#(and (or (< 29 main_n) (<= 84 main_i)) (or (<= main_n 29) (<= main_i 84)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11824#(and (or (<= main_i 88) (<= main_n 29)) (or (< 29 main_n) (<= 88 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:43,296 INFO L273 TraceCheckUtils]: 44: Hoare triple {11824#(and (or (<= main_i 88) (<= main_n 29)) (or (< 29 main_n) (<= 88 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11824#(and (or (<= main_i 88) (<= main_n 29)) (or (< 29 main_n) (<= 88 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:43,297 INFO L273 TraceCheckUtils]: 45: Hoare triple {11824#(and (or (<= main_i 88) (<= main_n 29)) (or (< 29 main_n) (<= 88 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11825#(and (or (<= main_i 92) (<= main_n 29)) (or (< 29 main_n) (<= 92 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:43,298 INFO L273 TraceCheckUtils]: 46: Hoare triple {11825#(and (or (<= main_i 92) (<= main_n 29)) (or (< 29 main_n) (<= 92 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11825#(and (or (<= main_i 92) (<= main_n 29)) (or (< 29 main_n) (<= 92 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:43,299 INFO L273 TraceCheckUtils]: 47: Hoare triple {11825#(and (or (<= main_i 92) (<= main_n 29)) (or (< 29 main_n) (<= 92 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11826#(and (or (< 29 main_n) (<= 96 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 96) (<= main_n 29)))} is VALID [2019-01-31 14:33:43,299 INFO L273 TraceCheckUtils]: 48: Hoare triple {11826#(and (or (< 29 main_n) (<= 96 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 96) (<= main_n 29)))} assume i <= n * 4; {11826#(and (or (< 29 main_n) (<= 96 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 96) (<= main_n 29)))} is VALID [2019-01-31 14:33:43,300 INFO L273 TraceCheckUtils]: 49: Hoare triple {11826#(and (or (< 29 main_n) (<= 96 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 96) (<= main_n 29)))} assume a[i] != 23;i := i + 4; {11827#(and (or (< 29 main_n) (<= 100 main_i)) (or (<= main_i 100) (<= main_n 29)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:43,301 INFO L273 TraceCheckUtils]: 50: Hoare triple {11827#(and (or (< 29 main_n) (<= 100 main_i)) (or (<= main_i 100) (<= main_n 29)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11827#(and (or (< 29 main_n) (<= 100 main_i)) (or (<= main_i 100) (<= main_n 29)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:43,302 INFO L273 TraceCheckUtils]: 51: Hoare triple {11827#(and (or (< 29 main_n) (<= 100 main_i)) (or (<= main_i 100) (<= main_n 29)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11828#(and (or (<= main_i 104) (<= main_n 29)) (or (< 29 main_n) (<= 104 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:43,303 INFO L273 TraceCheckUtils]: 52: Hoare triple {11828#(and (or (<= main_i 104) (<= main_n 29)) (or (< 29 main_n) (<= 104 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11828#(and (or (<= main_i 104) (<= main_n 29)) (or (< 29 main_n) (<= 104 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:43,304 INFO L273 TraceCheckUtils]: 53: Hoare triple {11828#(and (or (<= main_i 104) (<= main_n 29)) (or (< 29 main_n) (<= 104 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11829#(and (or (< 29 main_n) (<= 108 main_i)) (or (<= main_n 29) (<= main_i 108)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:43,305 INFO L273 TraceCheckUtils]: 54: Hoare triple {11829#(and (or (< 29 main_n) (<= 108 main_i)) (or (<= main_n 29) (<= main_i 108)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11829#(and (or (< 29 main_n) (<= 108 main_i)) (or (<= main_n 29) (<= main_i 108)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:43,306 INFO L273 TraceCheckUtils]: 55: Hoare triple {11829#(and (or (< 29 main_n) (<= 108 main_i)) (or (<= main_n 29) (<= main_i 108)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11830#(and (or (<= main_n 29) (<= main_i 112)) (or (< 29 main_n) (<= 112 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:43,306 INFO L273 TraceCheckUtils]: 56: Hoare triple {11830#(and (or (<= main_n 29) (<= main_i 112)) (or (< 29 main_n) (<= 112 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11830#(and (or (<= main_n 29) (<= main_i 112)) (or (< 29 main_n) (<= 112 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:43,308 INFO L273 TraceCheckUtils]: 57: Hoare triple {11830#(and (or (<= main_n 29) (<= main_i 112)) (or (< 29 main_n) (<= 112 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11831#(and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (or (= (* 4 main_n) main_i) (and (or (< 29 main_n) (<= (* 4 main_n) main_i)) (or (<= main_n 29) (<= main_i 116)))))} is VALID [2019-01-31 14:33:43,309 INFO L273 TraceCheckUtils]: 58: Hoare triple {11831#(and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (or (= (* 4 main_n) main_i) (and (or (< 29 main_n) (<= (* 4 main_n) main_i)) (or (<= main_n 29) (<= main_i 116)))))} assume i <= n * 4; {11832#(and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (or (= (* 4 main_n) main_i) (and (< 29 main_n) (<= main_i 116))))} is VALID [2019-01-31 14:33:43,310 INFO L273 TraceCheckUtils]: 59: Hoare triple {11832#(and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (or (= (* 4 main_n) main_i) (and (< 29 main_n) (<= main_i 116))))} assume a[i] != 23;i := i + 4; {11833#(and (<= main_i 120) (< 29 main_n))} is VALID [2019-01-31 14:33:43,310 INFO L273 TraceCheckUtils]: 60: Hoare triple {11833#(and (<= main_i 120) (< 29 main_n))} assume !(i <= n * 4); {11801#false} is VALID [2019-01-31 14:33:43,334 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 14:33:43,334 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-31 14:33:43,334 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-01-31 14:33:43,335 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-01-31 14:33:43,335 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-01-31 14:33:43,335 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-31 14:33:43,335 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 14:33:43,347 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2019-01-31 14:33:43,347 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST2 (IT: FPandBP) [2019-01-31 14:33:43,383 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 30 check-sat command(s) [2019-01-31 14:33:43,384 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-01-31 14:33:43,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-31 14:33:43,396 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-31 14:33:43,407 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 14:33:43,409 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-01-31 14:33:43,415 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-31 14:33:43,415 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2019-01-31 14:33:43,417 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-01-31 14:33:43,417 WARN L398 uantifierElimination]: Input elimination task: ∃ [v_main_a_33]. (and (= main_a (store v_main_a_33 (* 4 main_n) 23)) (= main_i 0)) [2019-01-31 14:33:43,417 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2019-01-31 14:33:45,267 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2019-01-31 14:33:45,269 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-01-31 14:33:45,274 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-31 14:33:45,274 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2019-01-31 14:33:45,276 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-01-31 14:33:45,277 WARN L398 uantifierElimination]: Input elimination task: ∃ [main_a]. (let ((.cse0 (* 4 main_n))) (and (<= main_i 120) (<= 116 .cse0) (not (= (select main_a 116) 23)) (= 23 (select main_a .cse0)))) [2019-01-31 14:33:45,277 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (let ((.cse0 (* 4 main_n))) (and (not (= 116 .cse0)) (<= main_i 120) (<= 116 .cse0))) [2019-01-31 14:33:45,317 INFO L273 TraceCheckUtils]: 0: Hoare triple {11800#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {11837#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:45,317 INFO L273 TraceCheckUtils]: 1: Hoare triple {11837#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11841#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2019-01-31 14:33:45,318 INFO L273 TraceCheckUtils]: 2: Hoare triple {11841#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume i <= n * 4; {11841#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2019-01-31 14:33:45,319 INFO L273 TraceCheckUtils]: 3: Hoare triple {11841#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume a[i] != 23;i := i + 4; {11848#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:45,319 INFO L273 TraceCheckUtils]: 4: Hoare triple {11848#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11848#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:45,320 INFO L273 TraceCheckUtils]: 5: Hoare triple {11848#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11855#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2019-01-31 14:33:45,321 INFO L273 TraceCheckUtils]: 6: Hoare triple {11855#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume i <= n * 4; {11855#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2019-01-31 14:33:45,321 INFO L273 TraceCheckUtils]: 7: Hoare triple {11855#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume a[i] != 23;i := i + 4; {11862#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:45,343 INFO L273 TraceCheckUtils]: 8: Hoare triple {11862#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11862#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:45,359 INFO L273 TraceCheckUtils]: 9: Hoare triple {11862#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11869#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:45,368 INFO L273 TraceCheckUtils]: 10: Hoare triple {11869#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11869#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:45,382 INFO L273 TraceCheckUtils]: 11: Hoare triple {11869#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11876#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:45,391 INFO L273 TraceCheckUtils]: 12: Hoare triple {11876#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11876#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:45,400 INFO L273 TraceCheckUtils]: 13: Hoare triple {11876#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11883#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:45,400 INFO L273 TraceCheckUtils]: 14: Hoare triple {11883#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11883#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:45,401 INFO L273 TraceCheckUtils]: 15: Hoare triple {11883#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11890#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:45,401 INFO L273 TraceCheckUtils]: 16: Hoare triple {11890#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11890#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:45,402 INFO L273 TraceCheckUtils]: 17: Hoare triple {11890#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11897#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:45,402 INFO L273 TraceCheckUtils]: 18: Hoare triple {11897#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11897#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:45,403 INFO L273 TraceCheckUtils]: 19: Hoare triple {11897#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11904#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:45,403 INFO L273 TraceCheckUtils]: 20: Hoare triple {11904#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11904#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:45,403 INFO L273 TraceCheckUtils]: 21: Hoare triple {11904#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11911#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:45,404 INFO L273 TraceCheckUtils]: 22: Hoare triple {11911#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11911#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:45,404 INFO L273 TraceCheckUtils]: 23: Hoare triple {11911#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11918#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:45,405 INFO L273 TraceCheckUtils]: 24: Hoare triple {11918#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11918#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:45,406 INFO L273 TraceCheckUtils]: 25: Hoare triple {11918#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11925#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:45,406 INFO L273 TraceCheckUtils]: 26: Hoare triple {11925#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11925#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:45,407 INFO L273 TraceCheckUtils]: 27: Hoare triple {11925#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11932#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:45,408 INFO L273 TraceCheckUtils]: 28: Hoare triple {11932#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11932#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:45,408 INFO L273 TraceCheckUtils]: 29: Hoare triple {11932#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11939#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:45,409 INFO L273 TraceCheckUtils]: 30: Hoare triple {11939#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11939#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:45,410 INFO L273 TraceCheckUtils]: 31: Hoare triple {11939#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11946#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:45,410 INFO L273 TraceCheckUtils]: 32: Hoare triple {11946#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11946#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:45,411 INFO L273 TraceCheckUtils]: 33: Hoare triple {11946#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11953#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:45,412 INFO L273 TraceCheckUtils]: 34: Hoare triple {11953#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11953#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:45,412 INFO L273 TraceCheckUtils]: 35: Hoare triple {11953#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11960#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:45,413 INFO L273 TraceCheckUtils]: 36: Hoare triple {11960#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11960#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:45,414 INFO L273 TraceCheckUtils]: 37: Hoare triple {11960#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11967#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:45,414 INFO L273 TraceCheckUtils]: 38: Hoare triple {11967#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11967#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:45,415 INFO L273 TraceCheckUtils]: 39: Hoare triple {11967#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11974#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} is VALID [2019-01-31 14:33:45,416 INFO L273 TraceCheckUtils]: 40: Hoare triple {11974#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} assume i <= n * 4; {11974#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} is VALID [2019-01-31 14:33:45,417 INFO L273 TraceCheckUtils]: 41: Hoare triple {11974#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} assume a[i] != 23;i := i + 4; {11981#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:45,417 INFO L273 TraceCheckUtils]: 42: Hoare triple {11981#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11981#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:45,418 INFO L273 TraceCheckUtils]: 43: Hoare triple {11981#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11988#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:45,419 INFO L273 TraceCheckUtils]: 44: Hoare triple {11988#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11988#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:45,419 INFO L273 TraceCheckUtils]: 45: Hoare triple {11988#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11995#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:45,420 INFO L273 TraceCheckUtils]: 46: Hoare triple {11995#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11995#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:45,421 INFO L273 TraceCheckUtils]: 47: Hoare triple {11995#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {12002#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:45,422 INFO L273 TraceCheckUtils]: 48: Hoare triple {12002#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {12002#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:45,422 INFO L273 TraceCheckUtils]: 49: Hoare triple {12002#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {12009#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:45,423 INFO L273 TraceCheckUtils]: 50: Hoare triple {12009#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {12009#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:45,424 INFO L273 TraceCheckUtils]: 51: Hoare triple {12009#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {12016#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:45,424 INFO L273 TraceCheckUtils]: 52: Hoare triple {12016#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {12016#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:45,425 INFO L273 TraceCheckUtils]: 53: Hoare triple {12016#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {12023#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:45,426 INFO L273 TraceCheckUtils]: 54: Hoare triple {12023#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {12023#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:45,426 INFO L273 TraceCheckUtils]: 55: Hoare triple {12023#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {12030#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:45,427 INFO L273 TraceCheckUtils]: 56: Hoare triple {12030#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {12030#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:45,428 INFO L273 TraceCheckUtils]: 57: Hoare triple {12030#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {12037#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:45,429 INFO L273 TraceCheckUtils]: 58: Hoare triple {12037#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {12041#(and (<= main_i (* 4 main_n)) (= main_i 116) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:45,429 INFO L273 TraceCheckUtils]: 59: Hoare triple {12041#(and (<= main_i (* 4 main_n)) (= main_i 116) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11833#(and (<= main_i 120) (< 29 main_n))} is VALID [2019-01-31 14:33:45,430 INFO L273 TraceCheckUtils]: 60: Hoare triple {11833#(and (<= main_i 120) (< 29 main_n))} assume !(i <= n * 4); {11801#false} is VALID [2019-01-31 14:33:45,440 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 14:33:45,440 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2019-01-31 14:33:48,175 INFO L273 TraceCheckUtils]: 60: Hoare triple {12048#(<= main_i (* 4 main_n))} assume !(i <= n * 4); {11801#false} is VALID [2019-01-31 14:33:48,176 INFO L273 TraceCheckUtils]: 59: Hoare triple {12052#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} assume a[i] != 23;i := i + 4; {12048#(<= main_i (* 4 main_n))} is VALID [2019-01-31 14:33:48,176 INFO L273 TraceCheckUtils]: 58: Hoare triple {12056#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} assume i <= n * 4; {12052#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} is VALID [2019-01-31 14:33:48,178 INFO L273 TraceCheckUtils]: 57: Hoare triple {12060#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume a[i] != 23;i := i + 4; {12056#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} is VALID [2019-01-31 14:33:48,178 INFO L273 TraceCheckUtils]: 56: Hoare triple {12060#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume i <= n * 4; {12060#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2019-01-31 14:33:48,179 INFO L273 TraceCheckUtils]: 55: Hoare triple {12067#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume a[i] != 23;i := i + 4; {12060#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2019-01-31 14:33:48,180 INFO L273 TraceCheckUtils]: 54: Hoare triple {12067#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume i <= n * 4; {12067#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2019-01-31 14:33:48,181 INFO L273 TraceCheckUtils]: 53: Hoare triple {12074#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume a[i] != 23;i := i + 4; {12067#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2019-01-31 14:33:48,181 INFO L273 TraceCheckUtils]: 52: Hoare triple {12074#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume i <= n * 4; {12074#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2019-01-31 14:33:48,182 INFO L273 TraceCheckUtils]: 51: Hoare triple {12081#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume a[i] != 23;i := i + 4; {12074#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2019-01-31 14:33:48,183 INFO L273 TraceCheckUtils]: 50: Hoare triple {12081#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume i <= n * 4; {12081#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2019-01-31 14:33:48,184 INFO L273 TraceCheckUtils]: 49: Hoare triple {12088#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {12081#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2019-01-31 14:33:48,184 INFO L273 TraceCheckUtils]: 48: Hoare triple {12088#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume i <= n * 4; {12088#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2019-01-31 14:33:48,186 INFO L273 TraceCheckUtils]: 47: Hoare triple {12095#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume a[i] != 23;i := i + 4; {12088#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2019-01-31 14:33:48,186 INFO L273 TraceCheckUtils]: 46: Hoare triple {12095#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume i <= n * 4; {12095#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2019-01-31 14:33:48,187 INFO L273 TraceCheckUtils]: 45: Hoare triple {12102#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {12095#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2019-01-31 14:33:48,188 INFO L273 TraceCheckUtils]: 44: Hoare triple {12102#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume i <= n * 4; {12102#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2019-01-31 14:33:48,189 INFO L273 TraceCheckUtils]: 43: Hoare triple {12109#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {12102#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2019-01-31 14:33:48,189 INFO L273 TraceCheckUtils]: 42: Hoare triple {12109#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume i <= n * 4; {12109#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2019-01-31 14:33:48,190 INFO L273 TraceCheckUtils]: 41: Hoare triple {12116#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {12109#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2019-01-31 14:33:48,191 INFO L273 TraceCheckUtils]: 40: Hoare triple {12116#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume i <= n * 4; {12116#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2019-01-31 14:33:48,192 INFO L273 TraceCheckUtils]: 39: Hoare triple {12123#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} assume a[i] != 23;i := i + 4; {12116#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2019-01-31 14:33:48,193 INFO L273 TraceCheckUtils]: 38: Hoare triple {12123#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} assume i <= n * 4; {12123#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} is VALID [2019-01-31 14:33:48,194 INFO L273 TraceCheckUtils]: 37: Hoare triple {12130#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {12123#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} is VALID [2019-01-31 14:33:48,194 INFO L273 TraceCheckUtils]: 36: Hoare triple {12130#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} assume i <= n * 4; {12130#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} is VALID [2019-01-31 14:33:48,195 INFO L273 TraceCheckUtils]: 35: Hoare triple {12137#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {12130#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} is VALID [2019-01-31 14:33:48,196 INFO L273 TraceCheckUtils]: 34: Hoare triple {12137#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} assume i <= n * 4; {12137#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} is VALID [2019-01-31 14:33:48,197 INFO L273 TraceCheckUtils]: 33: Hoare triple {12144#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} assume a[i] != 23;i := i + 4; {12137#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} is VALID [2019-01-31 14:33:48,197 INFO L273 TraceCheckUtils]: 32: Hoare triple {12144#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} assume i <= n * 4; {12144#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} is VALID [2019-01-31 14:33:48,199 INFO L273 TraceCheckUtils]: 31: Hoare triple {12151#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {12144#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} is VALID [2019-01-31 14:33:48,199 INFO L273 TraceCheckUtils]: 30: Hoare triple {12151#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} assume i <= n * 4; {12151#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} is VALID [2019-01-31 14:33:48,200 INFO L273 TraceCheckUtils]: 29: Hoare triple {12158#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} assume a[i] != 23;i := i + 4; {12151#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} is VALID [2019-01-31 14:33:48,201 INFO L273 TraceCheckUtils]: 28: Hoare triple {12158#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} assume i <= n * 4; {12158#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} is VALID [2019-01-31 14:33:48,202 INFO L273 TraceCheckUtils]: 27: Hoare triple {12165#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} assume a[i] != 23;i := i + 4; {12158#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} is VALID [2019-01-31 14:33:48,202 INFO L273 TraceCheckUtils]: 26: Hoare triple {12165#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} assume i <= n * 4; {12165#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} is VALID [2019-01-31 14:33:48,203 INFO L273 TraceCheckUtils]: 25: Hoare triple {12172#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} assume a[i] != 23;i := i + 4; {12165#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} is VALID [2019-01-31 14:33:48,204 INFO L273 TraceCheckUtils]: 24: Hoare triple {12172#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} assume i <= n * 4; {12172#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} is VALID [2019-01-31 14:33:48,205 INFO L273 TraceCheckUtils]: 23: Hoare triple {12179#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} assume a[i] != 23;i := i + 4; {12172#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} is VALID [2019-01-31 14:33:48,206 INFO L273 TraceCheckUtils]: 22: Hoare triple {12179#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} assume i <= n * 4; {12179#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} is VALID [2019-01-31 14:33:48,207 INFO L273 TraceCheckUtils]: 21: Hoare triple {12186#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} assume a[i] != 23;i := i + 4; {12179#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} is VALID [2019-01-31 14:33:48,207 INFO L273 TraceCheckUtils]: 20: Hoare triple {12186#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} assume i <= n * 4; {12186#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} is VALID [2019-01-31 14:33:48,208 INFO L273 TraceCheckUtils]: 19: Hoare triple {12193#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} assume a[i] != 23;i := i + 4; {12186#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} is VALID [2019-01-31 14:33:48,209 INFO L273 TraceCheckUtils]: 18: Hoare triple {12193#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} assume i <= n * 4; {12193#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} is VALID [2019-01-31 14:33:48,210 INFO L273 TraceCheckUtils]: 17: Hoare triple {12200#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {12193#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} is VALID [2019-01-31 14:33:48,211 INFO L273 TraceCheckUtils]: 16: Hoare triple {12200#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} assume i <= n * 4; {12200#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} is VALID [2019-01-31 14:33:48,212 INFO L273 TraceCheckUtils]: 15: Hoare triple {12207#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {12200#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} is VALID [2019-01-31 14:33:48,212 INFO L273 TraceCheckUtils]: 14: Hoare triple {12207#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} assume i <= n * 4; {12207#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} is VALID [2019-01-31 14:33:48,213 INFO L273 TraceCheckUtils]: 13: Hoare triple {12214#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {12207#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} is VALID [2019-01-31 14:33:48,214 INFO L273 TraceCheckUtils]: 12: Hoare triple {12214#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} assume i <= n * 4; {12214#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} is VALID [2019-01-31 14:33:48,215 INFO L273 TraceCheckUtils]: 11: Hoare triple {12221#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} assume a[i] != 23;i := i + 4; {12214#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} is VALID [2019-01-31 14:33:48,215 INFO L273 TraceCheckUtils]: 10: Hoare triple {12221#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} assume i <= n * 4; {12221#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} is VALID [2019-01-31 14:33:48,217 INFO L273 TraceCheckUtils]: 9: Hoare triple {12228#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {12221#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} is VALID [2019-01-31 14:33:48,217 INFO L273 TraceCheckUtils]: 8: Hoare triple {12228#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} assume i <= n * 4; {12228#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} is VALID [2019-01-31 14:33:48,218 INFO L273 TraceCheckUtils]: 7: Hoare triple {12235#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} assume a[i] != 23;i := i + 4; {12228#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} is VALID [2019-01-31 14:33:48,219 INFO L273 TraceCheckUtils]: 6: Hoare triple {12235#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} assume i <= n * 4; {12235#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} is VALID [2019-01-31 14:33:48,220 INFO L273 TraceCheckUtils]: 5: Hoare triple {12242#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} assume a[i] != 23;i := i + 4; {12235#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} is VALID [2019-01-31 14:33:48,220 INFO L273 TraceCheckUtils]: 4: Hoare triple {12242#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} assume i <= n * 4; {12242#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} is VALID [2019-01-31 14:33:48,222 INFO L273 TraceCheckUtils]: 3: Hoare triple {12249#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} assume a[i] != 23;i := i + 4; {12242#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} is VALID [2019-01-31 14:33:48,222 INFO L273 TraceCheckUtils]: 2: Hoare triple {12249#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} assume i <= n * 4; {12249#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} is VALID [2019-01-31 14:33:48,223 INFO L273 TraceCheckUtils]: 1: Hoare triple {12256#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {12249#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} is VALID [2019-01-31 14:33:48,224 INFO L273 TraceCheckUtils]: 0: Hoare triple {11800#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {12256#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} is VALID [2019-01-31 14:33:48,244 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 14:33:48,263 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-01-31 14:33:48,264 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [32, 32, 32] total 95 [2019-01-31 14:33:48,264 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-01-31 14:33:48,264 INFO L78 Accepts]: Start accepts. Automaton has 65 states. Word has length 61 [2019-01-31 14:33:48,264 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-01-31 14:33:48,264 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 65 states. [2019-01-31 14:33:48,405 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 121 edges. 121 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-01-31 14:33:48,405 INFO L459 AbstractCegarLoop]: Interpolant automaton has 65 states [2019-01-31 14:33:48,405 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 65 interpolants. [2019-01-31 14:33:48,406 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1192, Invalid=8120, Unknown=0, NotChecked=0, Total=9312 [2019-01-31 14:33:48,406 INFO L87 Difference]: Start difference. First operand 62 states and 62 transitions. Second operand 65 states. [2019-01-31 14:33:53,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 14:33:53,598 INFO L93 Difference]: Finished difference Result 66 states and 66 transitions. [2019-01-31 14:33:53,598 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2019-01-31 14:33:53,598 INFO L78 Accepts]: Start accepts. Automaton has 65 states. Word has length 61 [2019-01-31 14:33:53,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-31 14:33:53,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states. [2019-01-31 14:33:53,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 66 transitions. [2019-01-31 14:33:53,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states. [2019-01-31 14:33:53,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 66 transitions. [2019-01-31 14:33:53,600 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 34 states and 66 transitions. [2019-01-31 14:33:53,671 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 14:33:53,672 INFO L225 Difference]: With dead ends: 66 [2019-01-31 14:33:53,672 INFO L226 Difference]: Without dead ends: 65 [2019-01-31 14:33:53,673 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 56 SyntacticMatches, 1 SemanticMatches, 95 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2108 ImplicationChecksByTransitivity, 5.4s TimeCoverageRelationStatistics Valid=1192, Invalid=8120, Unknown=0, NotChecked=0, Total=9312 [2019-01-31 14:33:53,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2019-01-31 14:33:53,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 64. [2019-01-31 14:33:53,747 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-01-31 14:33:53,747 INFO L82 GeneralOperation]: Start isEquivalent. First operand 65 states. Second operand 64 states. [2019-01-31 14:33:53,747 INFO L74 IsIncluded]: Start isIncluded. First operand 65 states. Second operand 64 states. [2019-01-31 14:33:53,747 INFO L87 Difference]: Start difference. First operand 65 states. Second operand 64 states. [2019-01-31 14:33:53,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 14:33:53,748 INFO L93 Difference]: Finished difference Result 65 states and 65 transitions. [2019-01-31 14:33:53,748 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 65 transitions. [2019-01-31 14:33:53,748 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-31 14:33:53,749 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-01-31 14:33:53,749 INFO L74 IsIncluded]: Start isIncluded. First operand 64 states. Second operand 65 states. [2019-01-31 14:33:53,749 INFO L87 Difference]: Start difference. First operand 64 states. Second operand 65 states. [2019-01-31 14:33:53,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 14:33:53,750 INFO L93 Difference]: Finished difference Result 65 states and 65 transitions. [2019-01-31 14:33:53,750 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 65 transitions. [2019-01-31 14:33:53,751 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-31 14:33:53,751 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-01-31 14:33:53,751 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-01-31 14:33:53,751 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-01-31 14:33:53,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64 states. [2019-01-31 14:33:53,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 64 transitions. [2019-01-31 14:33:53,752 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 64 transitions. Word has length 61 [2019-01-31 14:33:53,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-31 14:33:53,752 INFO L480 AbstractCegarLoop]: Abstraction has 64 states and 64 transitions. [2019-01-31 14:33:53,753 INFO L481 AbstractCegarLoop]: Interpolant automaton has 65 states. [2019-01-31 14:33:53,753 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 64 transitions. [2019-01-31 14:33:53,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2019-01-31 14:33:53,753 INFO L394 BasicCegarLoop]: Found error trace [2019-01-31 14:33:53,753 INFO L402 BasicCegarLoop]: trace histogram [31, 30, 1, 1] [2019-01-31 14:33:53,753 INFO L423 AbstractCegarLoop]: === Iteration 31 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-01-31 14:33:53,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-31 14:33:53,754 INFO L82 PathProgramCache]: Analyzing trace with hash -1889766628, now seen corresponding path program 30 times [2019-01-31 14:33:53,754 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-01-31 14:33:53,754 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-31 14:33:53,755 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-01-31 14:33:53,755 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-31 14:33:53,755 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-01-31 14:33:53,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-31 14:33:55,613 INFO L273 TraceCheckUtils]: 0: Hoare triple {12582#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {12584#(and (or (and (<= 0 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)) (or (<= main_n 30) (<= main_i 0)))} is VALID [2019-01-31 14:33:55,615 INFO L273 TraceCheckUtils]: 1: Hoare triple {12584#(and (or (and (<= 0 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)) (or (<= main_n 30) (<= main_i 0)))} assume a[i] != 23;i := i + 4; {12585#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i)) (< 30 main_n)) (or (<= main_n 30) (<= main_i 4)))} is VALID [2019-01-31 14:33:55,616 INFO L273 TraceCheckUtils]: 2: Hoare triple {12585#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i)) (< 30 main_n)) (or (<= main_n 30) (<= main_i 4)))} assume i <= n * 4; {12585#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i)) (< 30 main_n)) (or (<= main_n 30) (<= main_i 4)))} is VALID [2019-01-31 14:33:55,617 INFO L273 TraceCheckUtils]: 3: Hoare triple {12585#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i)) (< 30 main_n)) (or (<= main_n 30) (<= main_i 4)))} assume a[i] != 23;i := i + 4; {12586#(and (or (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)) (or (<= main_n 30) (<= main_i 8)))} is VALID [2019-01-31 14:33:55,617 INFO L273 TraceCheckUtils]: 4: Hoare triple {12586#(and (or (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)) (or (<= main_n 30) (<= main_i 8)))} assume i <= n * 4; {12586#(and (or (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)) (or (<= main_n 30) (<= main_i 8)))} is VALID [2019-01-31 14:33:55,621 INFO L273 TraceCheckUtils]: 5: Hoare triple {12586#(and (or (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)) (or (<= main_n 30) (<= main_i 8)))} assume a[i] != 23;i := i + 4; {12587#(and (or (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)) (or (<= main_n 30) (<= main_i 12)))} is VALID [2019-01-31 14:33:55,622 INFO L273 TraceCheckUtils]: 6: Hoare triple {12587#(and (or (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)) (or (<= main_n 30) (<= main_i 12)))} assume i <= n * 4; {12587#(and (or (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)) (or (<= main_n 30) (<= main_i 12)))} is VALID [2019-01-31 14:33:55,622 INFO L273 TraceCheckUtils]: 7: Hoare triple {12587#(and (or (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)) (or (<= main_n 30) (<= main_i 12)))} assume a[i] != 23;i := i + 4; {12588#(and (or (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)) (or (<= main_n 30) (<= main_i 16)))} is VALID [2019-01-31 14:33:55,623 INFO L273 TraceCheckUtils]: 8: Hoare triple {12588#(and (or (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)) (or (<= main_n 30) (<= main_i 16)))} assume i <= n * 4; {12588#(and (or (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)) (or (<= main_n 30) (<= main_i 16)))} is VALID [2019-01-31 14:33:55,623 INFO L273 TraceCheckUtils]: 9: Hoare triple {12588#(and (or (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)) (or (<= main_n 30) (<= main_i 16)))} assume a[i] != 23;i := i + 4; {12589#(and (or (<= main_n 30) (<= main_i 20)) (or (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)))} is VALID [2019-01-31 14:33:55,624 INFO L273 TraceCheckUtils]: 10: Hoare triple {12589#(and (or (<= main_n 30) (<= main_i 20)) (or (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)))} assume i <= n * 4; {12589#(and (or (<= main_n 30) (<= main_i 20)) (or (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)))} is VALID [2019-01-31 14:33:55,625 INFO L273 TraceCheckUtils]: 11: Hoare triple {12589#(and (or (<= main_n 30) (<= main_i 20)) (or (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)))} assume a[i] != 23;i := i + 4; {12590#(and (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)) (or (<= main_n 30) (<= main_i 24)))} is VALID [2019-01-31 14:33:55,626 INFO L273 TraceCheckUtils]: 12: Hoare triple {12590#(and (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)) (or (<= main_n 30) (<= main_i 24)))} assume i <= n * 4; {12590#(and (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)) (or (<= main_n 30) (<= main_i 24)))} is VALID [2019-01-31 14:33:55,627 INFO L273 TraceCheckUtils]: 13: Hoare triple {12590#(and (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)) (or (<= main_n 30) (<= main_i 24)))} assume a[i] != 23;i := i + 4; {12591#(and (or (<= main_n 30) (<= main_i 28)) (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)))} is VALID [2019-01-31 14:33:55,628 INFO L273 TraceCheckUtils]: 14: Hoare triple {12591#(and (or (<= main_n 30) (<= main_i 28)) (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)))} assume i <= n * 4; {12591#(and (or (<= main_n 30) (<= main_i 28)) (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)))} is VALID [2019-01-31 14:33:55,629 INFO L273 TraceCheckUtils]: 15: Hoare triple {12591#(and (or (<= main_n 30) (<= main_i 28)) (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)))} assume a[i] != 23;i := i + 4; {12592#(and (or (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)) (or (<= main_i 32) (<= main_n 30)))} is VALID [2019-01-31 14:33:55,629 INFO L273 TraceCheckUtils]: 16: Hoare triple {12592#(and (or (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)) (or (<= main_i 32) (<= main_n 30)))} assume i <= n * 4; {12592#(and (or (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)) (or (<= main_i 32) (<= main_n 30)))} is VALID [2019-01-31 14:33:55,630 INFO L273 TraceCheckUtils]: 17: Hoare triple {12592#(and (or (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)) (or (<= main_i 32) (<= main_n 30)))} assume a[i] != 23;i := i + 4; {12593#(and (or (<= main_i 36) (<= main_n 30)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i)) (< 30 main_n)))} is VALID [2019-01-31 14:33:55,631 INFO L273 TraceCheckUtils]: 18: Hoare triple {12593#(and (or (<= main_i 36) (<= main_n 30)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i)) (< 30 main_n)))} assume i <= n * 4; {12593#(and (or (<= main_i 36) (<= main_n 30)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i)) (< 30 main_n)))} is VALID [2019-01-31 14:33:55,632 INFO L273 TraceCheckUtils]: 19: Hoare triple {12593#(and (or (<= main_i 36) (<= main_n 30)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i)) (< 30 main_n)))} assume a[i] != 23;i := i + 4; {12594#(and (or (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)) (or (<= main_n 30) (<= main_i 40)))} is VALID [2019-01-31 14:33:55,633 INFO L273 TraceCheckUtils]: 20: Hoare triple {12594#(and (or (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)) (or (<= main_n 30) (<= main_i 40)))} assume i <= n * 4; {12594#(and (or (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)) (or (<= main_n 30) (<= main_i 40)))} is VALID [2019-01-31 14:33:55,634 INFO L273 TraceCheckUtils]: 21: Hoare triple {12594#(and (or (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)) (or (<= main_n 30) (<= main_i 40)))} assume a[i] != 23;i := i + 4; {12595#(and (or (< 30 main_n) (and (<= 44 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 30) (<= main_i 44)))} is VALID [2019-01-31 14:33:55,635 INFO L273 TraceCheckUtils]: 22: Hoare triple {12595#(and (or (< 30 main_n) (and (<= 44 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 30) (<= main_i 44)))} assume i <= n * 4; {12595#(and (or (< 30 main_n) (and (<= 44 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 30) (<= main_i 44)))} is VALID [2019-01-31 14:33:55,636 INFO L273 TraceCheckUtils]: 23: Hoare triple {12595#(and (or (< 30 main_n) (and (<= 44 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 30) (<= main_i 44)))} assume a[i] != 23;i := i + 4; {12596#(and (or (<= main_n 30) (<= main_i 48)) (or (and (<= 48 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)))} is VALID [2019-01-31 14:33:55,637 INFO L273 TraceCheckUtils]: 24: Hoare triple {12596#(and (or (<= main_n 30) (<= main_i 48)) (or (and (<= 48 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)))} assume i <= n * 4; {12596#(and (or (<= main_n 30) (<= main_i 48)) (or (and (<= 48 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)))} is VALID [2019-01-31 14:33:55,638 INFO L273 TraceCheckUtils]: 25: Hoare triple {12596#(and (or (<= main_n 30) (<= main_i 48)) (or (and (<= 48 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)))} assume a[i] != 23;i := i + 4; {12597#(and (or (and (<= 52 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)) (or (<= main_i 52) (<= main_n 30)))} is VALID [2019-01-31 14:33:55,638 INFO L273 TraceCheckUtils]: 26: Hoare triple {12597#(and (or (and (<= 52 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)) (or (<= main_i 52) (<= main_n 30)))} assume i <= n * 4; {12597#(and (or (and (<= 52 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)) (or (<= main_i 52) (<= main_n 30)))} is VALID [2019-01-31 14:33:55,639 INFO L273 TraceCheckUtils]: 27: Hoare triple {12597#(and (or (and (<= 52 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)) (or (<= main_i 52) (<= main_n 30)))} assume a[i] != 23;i := i + 4; {12598#(and (or (and (<= 56 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)) (or (<= main_n 30) (<= main_i 56)))} is VALID [2019-01-31 14:33:55,640 INFO L273 TraceCheckUtils]: 28: Hoare triple {12598#(and (or (and (<= 56 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)) (or (<= main_n 30) (<= main_i 56)))} assume i <= n * 4; {12598#(and (or (and (<= 56 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)) (or (<= main_n 30) (<= main_i 56)))} is VALID [2019-01-31 14:33:55,641 INFO L273 TraceCheckUtils]: 29: Hoare triple {12598#(and (or (and (<= 56 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)) (or (<= main_n 30) (<= main_i 56)))} assume a[i] != 23;i := i + 4; {12599#(and (or (< 30 main_n) (and (<= 60 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 30) (<= main_i 60)))} is VALID [2019-01-31 14:33:55,642 INFO L273 TraceCheckUtils]: 30: Hoare triple {12599#(and (or (< 30 main_n) (and (<= 60 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 30) (<= main_i 60)))} assume i <= n * 4; {12599#(and (or (< 30 main_n) (and (<= 60 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 30) (<= main_i 60)))} is VALID [2019-01-31 14:33:55,643 INFO L273 TraceCheckUtils]: 31: Hoare triple {12599#(and (or (< 30 main_n) (and (<= 60 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 30) (<= main_i 60)))} assume a[i] != 23;i := i + 4; {12600#(and (or (and (<= 64 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)) (or (<= main_n 30) (<= main_i 64)))} is VALID [2019-01-31 14:33:55,644 INFO L273 TraceCheckUtils]: 32: Hoare triple {12600#(and (or (and (<= 64 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)) (or (<= main_n 30) (<= main_i 64)))} assume i <= n * 4; {12600#(and (or (and (<= 64 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)) (or (<= main_n 30) (<= main_i 64)))} is VALID [2019-01-31 14:33:55,645 INFO L273 TraceCheckUtils]: 33: Hoare triple {12600#(and (or (and (<= 64 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)) (or (<= main_n 30) (<= main_i 64)))} assume a[i] != 23;i := i + 4; {12601#(and (or (<= main_n 30) (<= main_i 68)) (or (and (<= 68 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)))} is VALID [2019-01-31 14:33:55,646 INFO L273 TraceCheckUtils]: 34: Hoare triple {12601#(and (or (<= main_n 30) (<= main_i 68)) (or (and (<= 68 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)))} assume i <= n * 4; {12601#(and (or (<= main_n 30) (<= main_i 68)) (or (and (<= 68 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)))} is VALID [2019-01-31 14:33:55,647 INFO L273 TraceCheckUtils]: 35: Hoare triple {12601#(and (or (<= main_n 30) (<= main_i 68)) (or (and (<= 68 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)))} assume a[i] != 23;i := i + 4; {12602#(and (or (<= main_n 30) (<= main_i 72)) (or (and (<= 72 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)))} is VALID [2019-01-31 14:33:55,647 INFO L273 TraceCheckUtils]: 36: Hoare triple {12602#(and (or (<= main_n 30) (<= main_i 72)) (or (and (<= 72 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)))} assume i <= n * 4; {12602#(and (or (<= main_n 30) (<= main_i 72)) (or (and (<= 72 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)))} is VALID [2019-01-31 14:33:55,648 INFO L273 TraceCheckUtils]: 37: Hoare triple {12602#(and (or (<= main_n 30) (<= main_i 72)) (or (and (<= 72 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)))} assume a[i] != 23;i := i + 4; {12603#(and (or (and (<= 76 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)) (or (<= main_i 76) (<= main_n 30)))} is VALID [2019-01-31 14:33:55,649 INFO L273 TraceCheckUtils]: 38: Hoare triple {12603#(and (or (and (<= 76 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)) (or (<= main_i 76) (<= main_n 30)))} assume i <= n * 4; {12603#(and (or (and (<= 76 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)) (or (<= main_i 76) (<= main_n 30)))} is VALID [2019-01-31 14:33:55,650 INFO L273 TraceCheckUtils]: 39: Hoare triple {12603#(and (or (and (<= 76 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)) (or (<= main_i 76) (<= main_n 30)))} assume a[i] != 23;i := i + 4; {12604#(and (or (and (<= 80 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)) (or (<= main_n 30) (<= main_i 80)))} is VALID [2019-01-31 14:33:55,651 INFO L273 TraceCheckUtils]: 40: Hoare triple {12604#(and (or (and (<= 80 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)) (or (<= main_n 30) (<= main_i 80)))} assume i <= n * 4; {12604#(and (or (and (<= 80 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)) (or (<= main_n 30) (<= main_i 80)))} is VALID [2019-01-31 14:33:55,652 INFO L273 TraceCheckUtils]: 41: Hoare triple {12604#(and (or (and (<= 80 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)) (or (<= main_n 30) (<= main_i 80)))} assume a[i] != 23;i := i + 4; {12605#(and (or (<= main_n 30) (<= main_i 84)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 84 main_i)) (< 30 main_n)))} is VALID [2019-01-31 14:33:55,653 INFO L273 TraceCheckUtils]: 42: Hoare triple {12605#(and (or (<= main_n 30) (<= main_i 84)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 84 main_i)) (< 30 main_n)))} assume i <= n * 4; {12605#(and (or (<= main_n 30) (<= main_i 84)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 84 main_i)) (< 30 main_n)))} is VALID [2019-01-31 14:33:55,654 INFO L273 TraceCheckUtils]: 43: Hoare triple {12605#(and (or (<= main_n 30) (<= main_i 84)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 84 main_i)) (< 30 main_n)))} assume a[i] != 23;i := i + 4; {12606#(and (or (and (<= 88 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)) (or (<= main_i 88) (<= main_n 30)))} is VALID [2019-01-31 14:33:55,655 INFO L273 TraceCheckUtils]: 44: Hoare triple {12606#(and (or (and (<= 88 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)) (or (<= main_i 88) (<= main_n 30)))} assume i <= n * 4; {12606#(and (or (and (<= 88 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)) (or (<= main_i 88) (<= main_n 30)))} is VALID [2019-01-31 14:33:55,656 INFO L273 TraceCheckUtils]: 45: Hoare triple {12606#(and (or (and (<= 88 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)) (or (<= main_i 88) (<= main_n 30)))} assume a[i] != 23;i := i + 4; {12607#(and (or (< 30 main_n) (and (<= 92 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 92) (<= main_n 30)))} is VALID [2019-01-31 14:33:55,656 INFO L273 TraceCheckUtils]: 46: Hoare triple {12607#(and (or (< 30 main_n) (and (<= 92 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 92) (<= main_n 30)))} assume i <= n * 4; {12607#(and (or (< 30 main_n) (and (<= 92 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 92) (<= main_n 30)))} is VALID [2019-01-31 14:33:55,657 INFO L273 TraceCheckUtils]: 47: Hoare triple {12607#(and (or (< 30 main_n) (and (<= 92 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 92) (<= main_n 30)))} assume a[i] != 23;i := i + 4; {12608#(and (or (<= main_i 96) (<= main_n 30)) (or (and (<= 96 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)))} is VALID [2019-01-31 14:33:55,658 INFO L273 TraceCheckUtils]: 48: Hoare triple {12608#(and (or (<= main_i 96) (<= main_n 30)) (or (and (<= 96 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)))} assume i <= n * 4; {12608#(and (or (<= main_i 96) (<= main_n 30)) (or (and (<= 96 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)))} is VALID [2019-01-31 14:33:55,659 INFO L273 TraceCheckUtils]: 49: Hoare triple {12608#(and (or (<= main_i 96) (<= main_n 30)) (or (and (<= 96 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)))} assume a[i] != 23;i := i + 4; {12609#(and (or (<= main_i 100) (<= main_n 30)) (or (and (<= 100 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)))} is VALID [2019-01-31 14:33:55,660 INFO L273 TraceCheckUtils]: 50: Hoare triple {12609#(and (or (<= main_i 100) (<= main_n 30)) (or (and (<= 100 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)))} assume i <= n * 4; {12609#(and (or (<= main_i 100) (<= main_n 30)) (or (and (<= 100 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)))} is VALID [2019-01-31 14:33:55,661 INFO L273 TraceCheckUtils]: 51: Hoare triple {12609#(and (or (<= main_i 100) (<= main_n 30)) (or (and (<= 100 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)))} assume a[i] != 23;i := i + 4; {12610#(and (or (<= main_i 104) (<= main_n 30)) (or (and (<= 104 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)))} is VALID [2019-01-31 14:33:55,662 INFO L273 TraceCheckUtils]: 52: Hoare triple {12610#(and (or (<= main_i 104) (<= main_n 30)) (or (and (<= 104 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)))} assume i <= n * 4; {12610#(and (or (<= main_i 104) (<= main_n 30)) (or (and (<= 104 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)))} is VALID [2019-01-31 14:33:55,663 INFO L273 TraceCheckUtils]: 53: Hoare triple {12610#(and (or (<= main_i 104) (<= main_n 30)) (or (and (<= 104 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)))} assume a[i] != 23;i := i + 4; {12611#(and (or (and (<= 108 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)) (or (<= main_n 30) (<= main_i 108)))} is VALID [2019-01-31 14:33:55,663 INFO L273 TraceCheckUtils]: 54: Hoare triple {12611#(and (or (and (<= 108 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)) (or (<= main_n 30) (<= main_i 108)))} assume i <= n * 4; {12611#(and (or (and (<= 108 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)) (or (<= main_n 30) (<= main_i 108)))} is VALID [2019-01-31 14:33:55,665 INFO L273 TraceCheckUtils]: 55: Hoare triple {12611#(and (or (and (<= 108 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)) (or (<= main_n 30) (<= main_i 108)))} assume a[i] != 23;i := i + 4; {12612#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 112 main_i)) (< 30 main_n)) (or (<= main_n 30) (<= main_i 112)))} is VALID [2019-01-31 14:33:55,665 INFO L273 TraceCheckUtils]: 56: Hoare triple {12612#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 112 main_i)) (< 30 main_n)) (or (<= main_n 30) (<= main_i 112)))} assume i <= n * 4; {12612#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 112 main_i)) (< 30 main_n)) (or (<= main_n 30) (<= main_i 112)))} is VALID [2019-01-31 14:33:55,666 INFO L273 TraceCheckUtils]: 57: Hoare triple {12612#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 112 main_i)) (< 30 main_n)) (or (<= main_n 30) (<= main_i 112)))} assume a[i] != 23;i := i + 4; {12613#(and (or (<= main_n 30) (<= main_i 116)) (or (and (<= 116 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)))} is VALID [2019-01-31 14:33:55,667 INFO L273 TraceCheckUtils]: 58: Hoare triple {12613#(and (or (<= main_n 30) (<= main_i 116)) (or (and (<= 116 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)))} assume i <= n * 4; {12613#(and (or (<= main_n 30) (<= main_i 116)) (or (and (<= 116 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)))} is VALID [2019-01-31 14:33:55,668 INFO L273 TraceCheckUtils]: 59: Hoare triple {12613#(and (or (<= main_n 30) (<= main_i 116)) (or (and (<= 116 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)))} assume a[i] != 23;i := i + 4; {12614#(and (or (<= main_n 30) (<= main_i 120)) (or (and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (<= (* 4 main_n) main_i)) (< 30 main_n)))} is VALID [2019-01-31 14:33:55,669 INFO L273 TraceCheckUtils]: 60: Hoare triple {12614#(and (or (<= main_n 30) (<= main_i 120)) (or (and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (<= (* 4 main_n) main_i)) (< 30 main_n)))} assume i <= n * 4; {12615#(and (<= main_i 120) (or (and (= (* 4 main_n) main_i) (= 23 (select main_a main_i))) (< 30 main_n)))} is VALID [2019-01-31 14:33:55,670 INFO L273 TraceCheckUtils]: 61: Hoare triple {12615#(and (<= main_i 120) (or (and (= (* 4 main_n) main_i) (= 23 (select main_a main_i))) (< 30 main_n)))} assume a[i] != 23;i := i + 4; {12616#(and (<= main_i 124) (< 30 main_n))} is VALID [2019-01-31 14:33:55,671 INFO L273 TraceCheckUtils]: 62: Hoare triple {12616#(and (<= main_i 124) (< 30 main_n))} assume !(i <= n * 4); {12583#false} is VALID [2019-01-31 14:33:55,691 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 14:33:55,691 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-31 14:33:55,691 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-01-31 14:33:55,691 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-01-31 14:33:55,691 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-01-31 14:33:55,691 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-31 14:33:55,691 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 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 14:33:55,701 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2019-01-31 14:33:55,701 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder TERMS_WITH_SMALL_CONSTANTS_FIRST (IT: FPandBP) [2019-01-31 14:33:55,720 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-01-31 14:33:55,720 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-01-31 14:33:55,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-31 14:33:55,733 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-31 14:33:55,748 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 14:33:55,749 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-01-31 14:33:55,754 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-31 14:33:55,754 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2019-01-31 14:33:55,756 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-01-31 14:33:55,757 WARN L398 uantifierElimination]: Input elimination task: ∃ [v_main_a_34]. (and (= (store v_main_a_34 (* 4 main_n) 23) main_a) (= main_i 0)) [2019-01-31 14:33:55,757 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2019-01-31 14:33:57,402 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2019-01-31 14:33:57,403 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-01-31 14:33:57,409 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-31 14:33:57,410 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2019-01-31 14:33:57,412 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-01-31 14:33:57,412 WARN L398 uantifierElimination]: Input elimination task: ∃ [main_a]. (let ((.cse0 (* 4 main_n))) (and (<= 120 .cse0) (not (= (select main_a 120) 23)) (<= main_i 124) (= 23 (select main_a .cse0)))) [2019-01-31 14:33:57,412 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (let ((.cse0 (* 4 main_n))) (and (<= 120 .cse0) (<= main_i 124) (not (= 120 .cse0)))) [2019-01-31 14:33:57,452 INFO L273 TraceCheckUtils]: 0: Hoare triple {12582#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {12620#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:57,453 INFO L273 TraceCheckUtils]: 1: Hoare triple {12620#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {12624#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2019-01-31 14:33:57,453 INFO L273 TraceCheckUtils]: 2: Hoare triple {12624#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume i <= n * 4; {12624#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2019-01-31 14:33:57,454 INFO L273 TraceCheckUtils]: 3: Hoare triple {12624#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume a[i] != 23;i := i + 4; {12631#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:57,454 INFO L273 TraceCheckUtils]: 4: Hoare triple {12631#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {12631#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:57,455 INFO L273 TraceCheckUtils]: 5: Hoare triple {12631#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {12638#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2019-01-31 14:33:57,456 INFO L273 TraceCheckUtils]: 6: Hoare triple {12638#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume i <= n * 4; {12638#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2019-01-31 14:33:57,456 INFO L273 TraceCheckUtils]: 7: Hoare triple {12638#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume a[i] != 23;i := i + 4; {12645#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:57,457 INFO L273 TraceCheckUtils]: 8: Hoare triple {12645#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {12645#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:57,458 INFO L273 TraceCheckUtils]: 9: Hoare triple {12645#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {12652#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:57,458 INFO L273 TraceCheckUtils]: 10: Hoare triple {12652#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {12652#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:57,459 INFO L273 TraceCheckUtils]: 11: Hoare triple {12652#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {12659#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:57,460 INFO L273 TraceCheckUtils]: 12: Hoare triple {12659#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {12659#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:57,461 INFO L273 TraceCheckUtils]: 13: Hoare triple {12659#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {12666#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:57,461 INFO L273 TraceCheckUtils]: 14: Hoare triple {12666#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {12666#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:57,462 INFO L273 TraceCheckUtils]: 15: Hoare triple {12666#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {12673#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:57,463 INFO L273 TraceCheckUtils]: 16: Hoare triple {12673#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {12673#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:57,463 INFO L273 TraceCheckUtils]: 17: Hoare triple {12673#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {12680#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:57,464 INFO L273 TraceCheckUtils]: 18: Hoare triple {12680#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {12680#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:57,465 INFO L273 TraceCheckUtils]: 19: Hoare triple {12680#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {12687#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:57,465 INFO L273 TraceCheckUtils]: 20: Hoare triple {12687#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {12687#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:57,466 INFO L273 TraceCheckUtils]: 21: Hoare triple {12687#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {12694#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:57,467 INFO L273 TraceCheckUtils]: 22: Hoare triple {12694#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {12694#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:57,467 INFO L273 TraceCheckUtils]: 23: Hoare triple {12694#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {12701#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:57,468 INFO L273 TraceCheckUtils]: 24: Hoare triple {12701#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {12701#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:57,469 INFO L273 TraceCheckUtils]: 25: Hoare triple {12701#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {12708#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:57,469 INFO L273 TraceCheckUtils]: 26: Hoare triple {12708#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {12708#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:57,470 INFO L273 TraceCheckUtils]: 27: Hoare triple {12708#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {12715#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:57,471 INFO L273 TraceCheckUtils]: 28: Hoare triple {12715#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {12715#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:57,471 INFO L273 TraceCheckUtils]: 29: Hoare triple {12715#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {12722#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:57,472 INFO L273 TraceCheckUtils]: 30: Hoare triple {12722#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {12722#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:57,473 INFO L273 TraceCheckUtils]: 31: Hoare triple {12722#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {12729#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:57,474 INFO L273 TraceCheckUtils]: 32: Hoare triple {12729#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {12729#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:57,474 INFO L273 TraceCheckUtils]: 33: Hoare triple {12729#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {12736#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:57,475 INFO L273 TraceCheckUtils]: 34: Hoare triple {12736#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {12736#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:57,476 INFO L273 TraceCheckUtils]: 35: Hoare triple {12736#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {12743#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:57,476 INFO L273 TraceCheckUtils]: 36: Hoare triple {12743#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {12743#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:57,477 INFO L273 TraceCheckUtils]: 37: Hoare triple {12743#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {12750#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:57,478 INFO L273 TraceCheckUtils]: 38: Hoare triple {12750#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {12750#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:57,478 INFO L273 TraceCheckUtils]: 39: Hoare triple {12750#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {12757#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} is VALID [2019-01-31 14:33:57,479 INFO L273 TraceCheckUtils]: 40: Hoare triple {12757#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} assume i <= n * 4; {12757#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} is VALID [2019-01-31 14:33:57,480 INFO L273 TraceCheckUtils]: 41: Hoare triple {12757#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} assume a[i] != 23;i := i + 4; {12764#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:57,480 INFO L273 TraceCheckUtils]: 42: Hoare triple {12764#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {12764#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:57,481 INFO L273 TraceCheckUtils]: 43: Hoare triple {12764#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {12771#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:57,482 INFO L273 TraceCheckUtils]: 44: Hoare triple {12771#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {12771#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:57,483 INFO L273 TraceCheckUtils]: 45: Hoare triple {12771#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {12778#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:57,483 INFO L273 TraceCheckUtils]: 46: Hoare triple {12778#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {12778#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:57,484 INFO L273 TraceCheckUtils]: 47: Hoare triple {12778#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {12785#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:57,485 INFO L273 TraceCheckUtils]: 48: Hoare triple {12785#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {12785#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:57,485 INFO L273 TraceCheckUtils]: 49: Hoare triple {12785#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {12792#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:57,486 INFO L273 TraceCheckUtils]: 50: Hoare triple {12792#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {12792#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:57,487 INFO L273 TraceCheckUtils]: 51: Hoare triple {12792#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {12799#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:57,487 INFO L273 TraceCheckUtils]: 52: Hoare triple {12799#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {12799#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:57,488 INFO L273 TraceCheckUtils]: 53: Hoare triple {12799#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {12806#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:57,489 INFO L273 TraceCheckUtils]: 54: Hoare triple {12806#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {12806#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:57,489 INFO L273 TraceCheckUtils]: 55: Hoare triple {12806#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {12813#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:57,490 INFO L273 TraceCheckUtils]: 56: Hoare triple {12813#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {12813#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:57,491 INFO L273 TraceCheckUtils]: 57: Hoare triple {12813#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {12820#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:57,491 INFO L273 TraceCheckUtils]: 58: Hoare triple {12820#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {12820#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:57,492 INFO L273 TraceCheckUtils]: 59: Hoare triple {12820#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {12827#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:57,493 INFO L273 TraceCheckUtils]: 60: Hoare triple {12827#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {12831#(and (<= main_i (* 4 main_n)) (= main_i 120) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:33:57,494 INFO L273 TraceCheckUtils]: 61: Hoare triple {12831#(and (<= main_i (* 4 main_n)) (= main_i 120) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {12616#(and (<= main_i 124) (< 30 main_n))} is VALID [2019-01-31 14:33:57,494 INFO L273 TraceCheckUtils]: 62: Hoare triple {12616#(and (<= main_i 124) (< 30 main_n))} assume !(i <= n * 4); {12583#false} is VALID [2019-01-31 14:33:57,511 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 14:33:57,511 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2019-01-31 14:34:00,530 INFO L273 TraceCheckUtils]: 62: Hoare triple {12838#(<= main_i (* 4 main_n))} assume !(i <= n * 4); {12583#false} is VALID [2019-01-31 14:34:00,531 INFO L273 TraceCheckUtils]: 61: Hoare triple {12842#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} assume a[i] != 23;i := i + 4; {12838#(<= main_i (* 4 main_n))} is VALID [2019-01-31 14:34:00,532 INFO L273 TraceCheckUtils]: 60: Hoare triple {12846#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} assume i <= n * 4; {12842#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} is VALID [2019-01-31 14:34:00,533 INFO L273 TraceCheckUtils]: 59: Hoare triple {12850#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume a[i] != 23;i := i + 4; {12846#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} is VALID [2019-01-31 14:34:00,533 INFO L273 TraceCheckUtils]: 58: Hoare triple {12850#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume i <= n * 4; {12850#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2019-01-31 14:34:00,534 INFO L273 TraceCheckUtils]: 57: Hoare triple {12857#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume a[i] != 23;i := i + 4; {12850#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2019-01-31 14:34:00,535 INFO L273 TraceCheckUtils]: 56: Hoare triple {12857#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume i <= n * 4; {12857#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2019-01-31 14:34:00,536 INFO L273 TraceCheckUtils]: 55: Hoare triple {12864#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume a[i] != 23;i := i + 4; {12857#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2019-01-31 14:34:00,536 INFO L273 TraceCheckUtils]: 54: Hoare triple {12864#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume i <= n * 4; {12864#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2019-01-31 14:34:00,538 INFO L273 TraceCheckUtils]: 53: Hoare triple {12871#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume a[i] != 23;i := i + 4; {12864#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2019-01-31 14:34:00,538 INFO L273 TraceCheckUtils]: 52: Hoare triple {12871#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume i <= n * 4; {12871#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2019-01-31 14:34:00,539 INFO L273 TraceCheckUtils]: 51: Hoare triple {12878#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {12871#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2019-01-31 14:34:00,540 INFO L273 TraceCheckUtils]: 50: Hoare triple {12878#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume i <= n * 4; {12878#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2019-01-31 14:34:00,541 INFO L273 TraceCheckUtils]: 49: Hoare triple {12885#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume a[i] != 23;i := i + 4; {12878#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2019-01-31 14:34:00,541 INFO L273 TraceCheckUtils]: 48: Hoare triple {12885#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume i <= n * 4; {12885#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2019-01-31 14:34:00,542 INFO L273 TraceCheckUtils]: 47: Hoare triple {12892#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {12885#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2019-01-31 14:34:00,543 INFO L273 TraceCheckUtils]: 46: Hoare triple {12892#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume i <= n * 4; {12892#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2019-01-31 14:34:00,544 INFO L273 TraceCheckUtils]: 45: Hoare triple {12899#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {12892#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2019-01-31 14:34:00,544 INFO L273 TraceCheckUtils]: 44: Hoare triple {12899#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume i <= n * 4; {12899#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2019-01-31 14:34:00,546 INFO L273 TraceCheckUtils]: 43: Hoare triple {12906#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {12899#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2019-01-31 14:34:00,546 INFO L273 TraceCheckUtils]: 42: Hoare triple {12906#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume i <= n * 4; {12906#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2019-01-31 14:34:00,547 INFO L273 TraceCheckUtils]: 41: Hoare triple {12913#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} assume a[i] != 23;i := i + 4; {12906#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2019-01-31 14:34:00,548 INFO L273 TraceCheckUtils]: 40: Hoare triple {12913#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} assume i <= n * 4; {12913#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} is VALID [2019-01-31 14:34:00,549 INFO L273 TraceCheckUtils]: 39: Hoare triple {12920#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {12913#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} is VALID [2019-01-31 14:34:00,549 INFO L273 TraceCheckUtils]: 38: Hoare triple {12920#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} assume i <= n * 4; {12920#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} is VALID [2019-01-31 14:34:00,550 INFO L273 TraceCheckUtils]: 37: Hoare triple {12927#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {12920#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} is VALID [2019-01-31 14:34:00,551 INFO L273 TraceCheckUtils]: 36: Hoare triple {12927#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} assume i <= n * 4; {12927#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} is VALID [2019-01-31 14:34:00,552 INFO L273 TraceCheckUtils]: 35: Hoare triple {12934#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} assume a[i] != 23;i := i + 4; {12927#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} is VALID [2019-01-31 14:34:00,552 INFO L273 TraceCheckUtils]: 34: Hoare triple {12934#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} assume i <= n * 4; {12934#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} is VALID [2019-01-31 14:34:00,554 INFO L273 TraceCheckUtils]: 33: Hoare triple {12941#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {12934#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} is VALID [2019-01-31 14:34:00,554 INFO L273 TraceCheckUtils]: 32: Hoare triple {12941#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} assume i <= n * 4; {12941#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} is VALID [2019-01-31 14:34:00,555 INFO L273 TraceCheckUtils]: 31: Hoare triple {12948#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} assume a[i] != 23;i := i + 4; {12941#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} is VALID [2019-01-31 14:34:00,556 INFO L273 TraceCheckUtils]: 30: Hoare triple {12948#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} assume i <= n * 4; {12948#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} is VALID [2019-01-31 14:34:00,557 INFO L273 TraceCheckUtils]: 29: Hoare triple {12955#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} assume a[i] != 23;i := i + 4; {12948#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} is VALID [2019-01-31 14:34:00,557 INFO L273 TraceCheckUtils]: 28: Hoare triple {12955#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} assume i <= n * 4; {12955#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} is VALID [2019-01-31 14:34:00,558 INFO L273 TraceCheckUtils]: 27: Hoare triple {12962#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} assume a[i] != 23;i := i + 4; {12955#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} is VALID [2019-01-31 14:34:00,559 INFO L273 TraceCheckUtils]: 26: Hoare triple {12962#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} assume i <= n * 4; {12962#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} is VALID [2019-01-31 14:34:00,560 INFO L273 TraceCheckUtils]: 25: Hoare triple {12969#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} assume a[i] != 23;i := i + 4; {12962#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} is VALID [2019-01-31 14:34:00,560 INFO L273 TraceCheckUtils]: 24: Hoare triple {12969#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} assume i <= n * 4; {12969#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} is VALID [2019-01-31 14:34:00,562 INFO L273 TraceCheckUtils]: 23: Hoare triple {12976#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} assume a[i] != 23;i := i + 4; {12969#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} is VALID [2019-01-31 14:34:00,562 INFO L273 TraceCheckUtils]: 22: Hoare triple {12976#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} assume i <= n * 4; {12976#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} is VALID [2019-01-31 14:34:00,563 INFO L273 TraceCheckUtils]: 21: Hoare triple {12983#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} assume a[i] != 23;i := i + 4; {12976#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} is VALID [2019-01-31 14:34:00,564 INFO L273 TraceCheckUtils]: 20: Hoare triple {12983#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} assume i <= n * 4; {12983#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} is VALID [2019-01-31 14:34:00,565 INFO L273 TraceCheckUtils]: 19: Hoare triple {12990#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {12983#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} is VALID [2019-01-31 14:34:00,565 INFO L273 TraceCheckUtils]: 18: Hoare triple {12990#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} assume i <= n * 4; {12990#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} is VALID [2019-01-31 14:34:00,566 INFO L273 TraceCheckUtils]: 17: Hoare triple {12997#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {12990#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} is VALID [2019-01-31 14:34:00,567 INFO L273 TraceCheckUtils]: 16: Hoare triple {12997#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} assume i <= n * 4; {12997#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} is VALID [2019-01-31 14:34:00,568 INFO L273 TraceCheckUtils]: 15: Hoare triple {13004#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {12997#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} is VALID [2019-01-31 14:34:00,568 INFO L273 TraceCheckUtils]: 14: Hoare triple {13004#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} assume i <= n * 4; {13004#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} is VALID [2019-01-31 14:34:00,570 INFO L273 TraceCheckUtils]: 13: Hoare triple {13011#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} assume a[i] != 23;i := i + 4; {13004#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} is VALID [2019-01-31 14:34:00,570 INFO L273 TraceCheckUtils]: 12: Hoare triple {13011#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} assume i <= n * 4; {13011#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} is VALID [2019-01-31 14:34:00,571 INFO L273 TraceCheckUtils]: 11: Hoare triple {13018#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {13011#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} is VALID [2019-01-31 14:34:00,572 INFO L273 TraceCheckUtils]: 10: Hoare triple {13018#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} assume i <= n * 4; {13018#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} is VALID [2019-01-31 14:34:00,573 INFO L273 TraceCheckUtils]: 9: Hoare triple {13025#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} assume a[i] != 23;i := i + 4; {13018#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} is VALID [2019-01-31 14:34:00,573 INFO L273 TraceCheckUtils]: 8: Hoare triple {13025#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} assume i <= n * 4; {13025#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} is VALID [2019-01-31 14:34:00,574 INFO L273 TraceCheckUtils]: 7: Hoare triple {13032#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} assume a[i] != 23;i := i + 4; {13025#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} is VALID [2019-01-31 14:34:00,575 INFO L273 TraceCheckUtils]: 6: Hoare triple {13032#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} assume i <= n * 4; {13032#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} is VALID [2019-01-31 14:34:00,576 INFO L273 TraceCheckUtils]: 5: Hoare triple {13039#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} assume a[i] != 23;i := i + 4; {13032#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} is VALID [2019-01-31 14:34:00,576 INFO L273 TraceCheckUtils]: 4: Hoare triple {13039#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} assume i <= n * 4; {13039#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} is VALID [2019-01-31 14:34:00,577 INFO L273 TraceCheckUtils]: 3: Hoare triple {13046#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {13039#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} is VALID [2019-01-31 14:34:00,578 INFO L273 TraceCheckUtils]: 2: Hoare triple {13046#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} assume i <= n * 4; {13046#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} is VALID [2019-01-31 14:34:00,579 INFO L273 TraceCheckUtils]: 1: Hoare triple {13053#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {13046#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} is VALID [2019-01-31 14:34:00,580 INFO L273 TraceCheckUtils]: 0: Hoare triple {12582#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {13053#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} is VALID [2019-01-31 14:34:00,597 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 14:34:00,615 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-01-31 14:34:00,615 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 33, 33] total 98 [2019-01-31 14:34:00,615 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-01-31 14:34:00,615 INFO L78 Accepts]: Start accepts. Automaton has 67 states. Word has length 63 [2019-01-31 14:34:00,616 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-01-31 14:34:00,616 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 67 states. [2019-01-31 14:34:00,781 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 125 edges. 125 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-01-31 14:34:00,781 INFO L459 AbstractCegarLoop]: Interpolant automaton has 67 states [2019-01-31 14:34:00,782 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 67 interpolants. [2019-01-31 14:34:00,782 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1262, Invalid=8638, Unknown=0, NotChecked=0, Total=9900 [2019-01-31 14:34:00,782 INFO L87 Difference]: Start difference. First operand 64 states and 64 transitions. Second operand 67 states. [2019-01-31 14:34:07,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 14:34:07,027 INFO L93 Difference]: Finished difference Result 68 states and 68 transitions. [2019-01-31 14:34:07,027 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2019-01-31 14:34:07,027 INFO L78 Accepts]: Start accepts. Automaton has 67 states. Word has length 63 [2019-01-31 14:34:07,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-31 14:34:07,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 67 states. [2019-01-31 14:34:07,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 68 transitions. [2019-01-31 14:34:07,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 67 states. [2019-01-31 14:34:07,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 68 transitions. [2019-01-31 14:34:07,030 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 35 states and 68 transitions. [2019-01-31 14:34:07,102 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 14:34:07,103 INFO L225 Difference]: With dead ends: 68 [2019-01-31 14:34:07,103 INFO L226 Difference]: Without dead ends: 67 [2019-01-31 14:34:07,104 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 58 SyntacticMatches, 1 SemanticMatches, 98 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2240 ImplicationChecksByTransitivity, 5.9s TimeCoverageRelationStatistics Valid=1262, Invalid=8638, Unknown=0, NotChecked=0, Total=9900 [2019-01-31 14:34:07,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2019-01-31 14:34:07,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 66. [2019-01-31 14:34:07,166 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-01-31 14:34:07,166 INFO L82 GeneralOperation]: Start isEquivalent. First operand 67 states. Second operand 66 states. [2019-01-31 14:34:07,166 INFO L74 IsIncluded]: Start isIncluded. First operand 67 states. Second operand 66 states. [2019-01-31 14:34:07,166 INFO L87 Difference]: Start difference. First operand 67 states. Second operand 66 states. [2019-01-31 14:34:07,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 14:34:07,168 INFO L93 Difference]: Finished difference Result 67 states and 67 transitions. [2019-01-31 14:34:07,168 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 67 transitions. [2019-01-31 14:34:07,168 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-31 14:34:07,168 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-01-31 14:34:07,168 INFO L74 IsIncluded]: Start isIncluded. First operand 66 states. Second operand 67 states. [2019-01-31 14:34:07,169 INFO L87 Difference]: Start difference. First operand 66 states. Second operand 67 states. [2019-01-31 14:34:07,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 14:34:07,169 INFO L93 Difference]: Finished difference Result 67 states and 67 transitions. [2019-01-31 14:34:07,169 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 67 transitions. [2019-01-31 14:34:07,170 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-31 14:34:07,170 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-01-31 14:34:07,170 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-01-31 14:34:07,170 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-01-31 14:34:07,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2019-01-31 14:34:07,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 66 transitions. [2019-01-31 14:34:07,171 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 66 transitions. Word has length 63 [2019-01-31 14:34:07,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-31 14:34:07,171 INFO L480 AbstractCegarLoop]: Abstraction has 66 states and 66 transitions. [2019-01-31 14:34:07,171 INFO L481 AbstractCegarLoop]: Interpolant automaton has 67 states. [2019-01-31 14:34:07,171 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 66 transitions. [2019-01-31 14:34:07,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2019-01-31 14:34:07,171 INFO L394 BasicCegarLoop]: Found error trace [2019-01-31 14:34:07,171 INFO L402 BasicCegarLoop]: trace histogram [32, 31, 1, 1] [2019-01-31 14:34:07,172 INFO L423 AbstractCegarLoop]: === Iteration 32 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-01-31 14:34:07,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-31 14:34:07,172 INFO L82 PathProgramCache]: Analyzing trace with hash 705437790, now seen corresponding path program 31 times [2019-01-31 14:34:07,172 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-01-31 14:34:07,173 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-31 14:34:07,173 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-01-31 14:34:07,173 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-31 14:34:07,173 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-01-31 14:34:07,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-31 14:34:08,722 INFO L273 TraceCheckUtils]: 0: Hoare triple {13389#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {13391#(and (or (<= main_n 31) (<= main_i 0)) (or (<= 0 main_i) (< 31 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:08,723 INFO L273 TraceCheckUtils]: 1: Hoare triple {13391#(and (or (<= main_n 31) (<= main_i 0)) (or (<= 0 main_i) (< 31 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {13392#(and (or (<= main_n 31) (<= main_i 4)) (or (< 31 main_n) (<= 4 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:08,724 INFO L273 TraceCheckUtils]: 2: Hoare triple {13392#(and (or (<= main_n 31) (<= main_i 4)) (or (< 31 main_n) (<= 4 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {13392#(and (or (<= main_n 31) (<= main_i 4)) (or (< 31 main_n) (<= 4 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:08,725 INFO L273 TraceCheckUtils]: 3: Hoare triple {13392#(and (or (<= main_n 31) (<= main_i 4)) (or (< 31 main_n) (<= 4 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {13393#(and (or (< 31 main_n) (<= 8 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 8) (<= main_n 31)))} is VALID [2019-01-31 14:34:08,726 INFO L273 TraceCheckUtils]: 4: Hoare triple {13393#(and (or (< 31 main_n) (<= 8 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 8) (<= main_n 31)))} assume i <= n * 4; {13393#(and (or (< 31 main_n) (<= 8 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 8) (<= main_n 31)))} is VALID [2019-01-31 14:34:08,727 INFO L273 TraceCheckUtils]: 5: Hoare triple {13393#(and (or (< 31 main_n) (<= 8 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 8) (<= main_n 31)))} assume a[i] != 23;i := i + 4; {13394#(and (or (< 31 main_n) (<= 12 main_i)) (or (<= main_n 31) (<= main_i 12)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:08,728 INFO L273 TraceCheckUtils]: 6: Hoare triple {13394#(and (or (< 31 main_n) (<= 12 main_i)) (or (<= main_n 31) (<= main_i 12)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {13394#(and (or (< 31 main_n) (<= 12 main_i)) (or (<= main_n 31) (<= main_i 12)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:08,729 INFO L273 TraceCheckUtils]: 7: Hoare triple {13394#(and (or (< 31 main_n) (<= 12 main_i)) (or (<= main_n 31) (<= main_i 12)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {13395#(and (or (< 31 main_n) (<= 16 main_i)) (or (<= main_n 31) (<= main_i 16)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:08,729 INFO L273 TraceCheckUtils]: 8: Hoare triple {13395#(and (or (< 31 main_n) (<= 16 main_i)) (or (<= main_n 31) (<= main_i 16)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {13395#(and (or (< 31 main_n) (<= 16 main_i)) (or (<= main_n 31) (<= main_i 16)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:08,730 INFO L273 TraceCheckUtils]: 9: Hoare triple {13395#(and (or (< 31 main_n) (<= 16 main_i)) (or (<= main_n 31) (<= main_i 16)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {13396#(and (or (<= main_n 31) (<= main_i 20)) (or (< 31 main_n) (<= 20 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:08,731 INFO L273 TraceCheckUtils]: 10: Hoare triple {13396#(and (or (<= main_n 31) (<= main_i 20)) (or (< 31 main_n) (<= 20 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {13396#(and (or (<= main_n 31) (<= main_i 20)) (or (< 31 main_n) (<= 20 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:08,732 INFO L273 TraceCheckUtils]: 11: Hoare triple {13396#(and (or (<= main_n 31) (<= main_i 20)) (or (< 31 main_n) (<= 20 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {13397#(and (or (<= main_n 31) (<= main_i 24)) (= 23 (select main_a (* 4 main_n))) (or (< 31 main_n) (<= 24 main_i)))} is VALID [2019-01-31 14:34:08,733 INFO L273 TraceCheckUtils]: 12: Hoare triple {13397#(and (or (<= main_n 31) (<= main_i 24)) (= 23 (select main_a (* 4 main_n))) (or (< 31 main_n) (<= 24 main_i)))} assume i <= n * 4; {13397#(and (or (<= main_n 31) (<= main_i 24)) (= 23 (select main_a (* 4 main_n))) (or (< 31 main_n) (<= 24 main_i)))} is VALID [2019-01-31 14:34:08,734 INFO L273 TraceCheckUtils]: 13: Hoare triple {13397#(and (or (<= main_n 31) (<= main_i 24)) (= 23 (select main_a (* 4 main_n))) (or (< 31 main_n) (<= 24 main_i)))} assume a[i] != 23;i := i + 4; {13398#(and (or (<= main_n 31) (<= main_i 28)) (or (<= 28 main_i) (< 31 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:08,735 INFO L273 TraceCheckUtils]: 14: Hoare triple {13398#(and (or (<= main_n 31) (<= main_i 28)) (or (<= 28 main_i) (< 31 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {13398#(and (or (<= main_n 31) (<= main_i 28)) (or (<= 28 main_i) (< 31 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:08,736 INFO L273 TraceCheckUtils]: 15: Hoare triple {13398#(and (or (<= main_n 31) (<= main_i 28)) (or (<= 28 main_i) (< 31 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {13399#(and (or (<= main_i 32) (<= main_n 31)) (or (<= 32 main_i) (< 31 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:08,737 INFO L273 TraceCheckUtils]: 16: Hoare triple {13399#(and (or (<= main_i 32) (<= main_n 31)) (or (<= 32 main_i) (< 31 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {13399#(and (or (<= main_i 32) (<= main_n 31)) (or (<= 32 main_i) (< 31 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:08,738 INFO L273 TraceCheckUtils]: 17: Hoare triple {13399#(and (or (<= main_i 32) (<= main_n 31)) (or (<= 32 main_i) (< 31 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {13400#(and (or (< 31 main_n) (<= 36 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 36) (<= main_n 31)))} is VALID [2019-01-31 14:34:08,738 INFO L273 TraceCheckUtils]: 18: Hoare triple {13400#(and (or (< 31 main_n) (<= 36 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 36) (<= main_n 31)))} assume i <= n * 4; {13400#(and (or (< 31 main_n) (<= 36 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 36) (<= main_n 31)))} is VALID [2019-01-31 14:34:08,739 INFO L273 TraceCheckUtils]: 19: Hoare triple {13400#(and (or (< 31 main_n) (<= 36 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 36) (<= main_n 31)))} assume a[i] != 23;i := i + 4; {13401#(and (or (<= main_i 40) (<= main_n 31)) (or (<= 40 main_i) (< 31 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:08,740 INFO L273 TraceCheckUtils]: 20: Hoare triple {13401#(and (or (<= main_i 40) (<= main_n 31)) (or (<= 40 main_i) (< 31 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {13401#(and (or (<= main_i 40) (<= main_n 31)) (or (<= 40 main_i) (< 31 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:08,741 INFO L273 TraceCheckUtils]: 21: Hoare triple {13401#(and (or (<= main_i 40) (<= main_n 31)) (or (<= 40 main_i) (< 31 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {13402#(and (or (<= main_n 31) (<= main_i 44)) (or (<= 44 main_i) (< 31 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:08,742 INFO L273 TraceCheckUtils]: 22: Hoare triple {13402#(and (or (<= main_n 31) (<= main_i 44)) (or (<= 44 main_i) (< 31 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {13402#(and (or (<= main_n 31) (<= main_i 44)) (or (<= 44 main_i) (< 31 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:08,743 INFO L273 TraceCheckUtils]: 23: Hoare triple {13402#(and (or (<= main_n 31) (<= main_i 44)) (or (<= 44 main_i) (< 31 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {13403#(and (or (<= 48 main_i) (< 31 main_n)) (or (<= main_n 31) (<= main_i 48)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:08,744 INFO L273 TraceCheckUtils]: 24: Hoare triple {13403#(and (or (<= 48 main_i) (< 31 main_n)) (or (<= main_n 31) (<= main_i 48)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {13403#(and (or (<= 48 main_i) (< 31 main_n)) (or (<= main_n 31) (<= main_i 48)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:08,745 INFO L273 TraceCheckUtils]: 25: Hoare triple {13403#(and (or (<= 48 main_i) (< 31 main_n)) (or (<= main_n 31) (<= main_i 48)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {13404#(and (or (<= main_i 52) (<= main_n 31)) (or (< 31 main_n) (<= 52 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:08,745 INFO L273 TraceCheckUtils]: 26: Hoare triple {13404#(and (or (<= main_i 52) (<= main_n 31)) (or (< 31 main_n) (<= 52 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {13404#(and (or (<= main_i 52) (<= main_n 31)) (or (< 31 main_n) (<= 52 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:08,747 INFO L273 TraceCheckUtils]: 27: Hoare triple {13404#(and (or (<= main_i 52) (<= main_n 31)) (or (< 31 main_n) (<= 52 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {13405#(and (or (< 31 main_n) (<= 56 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 31) (<= main_i 56)))} is VALID [2019-01-31 14:34:08,747 INFO L273 TraceCheckUtils]: 28: Hoare triple {13405#(and (or (< 31 main_n) (<= 56 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 31) (<= main_i 56)))} assume i <= n * 4; {13405#(and (or (< 31 main_n) (<= 56 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 31) (<= main_i 56)))} is VALID [2019-01-31 14:34:08,748 INFO L273 TraceCheckUtils]: 29: Hoare triple {13405#(and (or (< 31 main_n) (<= 56 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 31) (<= main_i 56)))} assume a[i] != 23;i := i + 4; {13406#(and (or (< 31 main_n) (<= 60 main_i)) (or (<= main_n 31) (<= main_i 60)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:08,749 INFO L273 TraceCheckUtils]: 30: Hoare triple {13406#(and (or (< 31 main_n) (<= 60 main_i)) (or (<= main_n 31) (<= main_i 60)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {13406#(and (or (< 31 main_n) (<= 60 main_i)) (or (<= main_n 31) (<= main_i 60)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:08,750 INFO L273 TraceCheckUtils]: 31: Hoare triple {13406#(and (or (< 31 main_n) (<= 60 main_i)) (or (<= main_n 31) (<= main_i 60)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {13407#(and (or (<= main_i 64) (<= main_n 31)) (or (<= 64 main_i) (< 31 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:08,751 INFO L273 TraceCheckUtils]: 32: Hoare triple {13407#(and (or (<= main_i 64) (<= main_n 31)) (or (<= 64 main_i) (< 31 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {13407#(and (or (<= main_i 64) (<= main_n 31)) (or (<= 64 main_i) (< 31 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:08,752 INFO L273 TraceCheckUtils]: 33: Hoare triple {13407#(and (or (<= main_i 64) (<= main_n 31)) (or (<= 64 main_i) (< 31 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {13408#(and (or (<= main_n 31) (<= main_i 68)) (or (< 31 main_n) (<= 68 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:08,753 INFO L273 TraceCheckUtils]: 34: Hoare triple {13408#(and (or (<= main_n 31) (<= main_i 68)) (or (< 31 main_n) (<= 68 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {13408#(and (or (<= main_n 31) (<= main_i 68)) (or (< 31 main_n) (<= 68 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:08,754 INFO L273 TraceCheckUtils]: 35: Hoare triple {13408#(and (or (<= main_n 31) (<= main_i 68)) (or (< 31 main_n) (<= 68 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {13409#(and (or (<= 72 main_i) (< 31 main_n)) (or (<= main_n 31) (<= main_i 72)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:08,754 INFO L273 TraceCheckUtils]: 36: Hoare triple {13409#(and (or (<= 72 main_i) (< 31 main_n)) (or (<= main_n 31) (<= main_i 72)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {13409#(and (or (<= 72 main_i) (< 31 main_n)) (or (<= main_n 31) (<= main_i 72)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:08,756 INFO L273 TraceCheckUtils]: 37: Hoare triple {13409#(and (or (<= 72 main_i) (< 31 main_n)) (or (<= main_n 31) (<= main_i 72)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {13410#(and (or (<= 76 main_i) (< 31 main_n)) (or (<= main_i 76) (<= main_n 31)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:08,756 INFO L273 TraceCheckUtils]: 38: Hoare triple {13410#(and (or (<= 76 main_i) (< 31 main_n)) (or (<= main_i 76) (<= main_n 31)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {13410#(and (or (<= 76 main_i) (< 31 main_n)) (or (<= main_i 76) (<= main_n 31)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:08,757 INFO L273 TraceCheckUtils]: 39: Hoare triple {13410#(and (or (<= 76 main_i) (< 31 main_n)) (or (<= main_i 76) (<= main_n 31)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {13411#(and (or (< 31 main_n) (<= 80 main_i)) (or (<= main_n 31) (<= main_i 80)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:08,758 INFO L273 TraceCheckUtils]: 40: Hoare triple {13411#(and (or (< 31 main_n) (<= 80 main_i)) (or (<= main_n 31) (<= main_i 80)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {13411#(and (or (< 31 main_n) (<= 80 main_i)) (or (<= main_n 31) (<= main_i 80)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:08,759 INFO L273 TraceCheckUtils]: 41: Hoare triple {13411#(and (or (< 31 main_n) (<= 80 main_i)) (or (<= main_n 31) (<= main_i 80)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {13412#(and (or (<= main_i 84) (<= main_n 31)) (or (< 31 main_n) (<= 84 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:08,760 INFO L273 TraceCheckUtils]: 42: Hoare triple {13412#(and (or (<= main_i 84) (<= main_n 31)) (or (< 31 main_n) (<= 84 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {13412#(and (or (<= main_i 84) (<= main_n 31)) (or (< 31 main_n) (<= 84 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:08,761 INFO L273 TraceCheckUtils]: 43: Hoare triple {13412#(and (or (<= main_i 84) (<= main_n 31)) (or (< 31 main_n) (<= 84 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {13413#(and (or (< 31 main_n) (<= 88 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 88) (<= main_n 31)))} is VALID [2019-01-31 14:34:08,762 INFO L273 TraceCheckUtils]: 44: Hoare triple {13413#(and (or (< 31 main_n) (<= 88 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 88) (<= main_n 31)))} assume i <= n * 4; {13413#(and (or (< 31 main_n) (<= 88 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 88) (<= main_n 31)))} is VALID [2019-01-31 14:34:08,763 INFO L273 TraceCheckUtils]: 45: Hoare triple {13413#(and (or (< 31 main_n) (<= 88 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 88) (<= main_n 31)))} assume a[i] != 23;i := i + 4; {13414#(and (or (<= main_i 92) (<= main_n 31)) (or (< 31 main_n) (<= 92 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:08,763 INFO L273 TraceCheckUtils]: 46: Hoare triple {13414#(and (or (<= main_i 92) (<= main_n 31)) (or (< 31 main_n) (<= 92 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {13414#(and (or (<= main_i 92) (<= main_n 31)) (or (< 31 main_n) (<= 92 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:08,765 INFO L273 TraceCheckUtils]: 47: Hoare triple {13414#(and (or (<= main_i 92) (<= main_n 31)) (or (< 31 main_n) (<= 92 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {13415#(and (or (<= main_i 96) (<= main_n 31)) (or (< 31 main_n) (<= 96 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:08,765 INFO L273 TraceCheckUtils]: 48: Hoare triple {13415#(and (or (<= main_i 96) (<= main_n 31)) (or (< 31 main_n) (<= 96 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {13415#(and (or (<= main_i 96) (<= main_n 31)) (or (< 31 main_n) (<= 96 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:08,766 INFO L273 TraceCheckUtils]: 49: Hoare triple {13415#(and (or (<= main_i 96) (<= main_n 31)) (or (< 31 main_n) (<= 96 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {13416#(and (or (<= main_i 100) (<= main_n 31)) (or (< 31 main_n) (<= 100 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:08,767 INFO L273 TraceCheckUtils]: 50: Hoare triple {13416#(and (or (<= main_i 100) (<= main_n 31)) (or (< 31 main_n) (<= 100 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {13416#(and (or (<= main_i 100) (<= main_n 31)) (or (< 31 main_n) (<= 100 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:08,768 INFO L273 TraceCheckUtils]: 51: Hoare triple {13416#(and (or (<= main_i 100) (<= main_n 31)) (or (< 31 main_n) (<= 100 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {13417#(and (or (< 31 main_n) (<= 104 main_i)) (or (<= main_i 104) (<= main_n 31)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:08,769 INFO L273 TraceCheckUtils]: 52: Hoare triple {13417#(and (or (< 31 main_n) (<= 104 main_i)) (or (<= main_i 104) (<= main_n 31)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {13417#(and (or (< 31 main_n) (<= 104 main_i)) (or (<= main_i 104) (<= main_n 31)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:08,770 INFO L273 TraceCheckUtils]: 53: Hoare triple {13417#(and (or (< 31 main_n) (<= 104 main_i)) (or (<= main_i 104) (<= main_n 31)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {13418#(and (or (<= main_n 31) (<= main_i 108)) (= 23 (select main_a (* 4 main_n))) (or (< 31 main_n) (<= 108 main_i)))} is VALID [2019-01-31 14:34:08,771 INFO L273 TraceCheckUtils]: 54: Hoare triple {13418#(and (or (<= main_n 31) (<= main_i 108)) (= 23 (select main_a (* 4 main_n))) (or (< 31 main_n) (<= 108 main_i)))} assume i <= n * 4; {13418#(and (or (<= main_n 31) (<= main_i 108)) (= 23 (select main_a (* 4 main_n))) (or (< 31 main_n) (<= 108 main_i)))} is VALID [2019-01-31 14:34:08,772 INFO L273 TraceCheckUtils]: 55: Hoare triple {13418#(and (or (<= main_n 31) (<= main_i 108)) (= 23 (select main_a (* 4 main_n))) (or (< 31 main_n) (<= 108 main_i)))} assume a[i] != 23;i := i + 4; {13419#(and (or (< 31 main_n) (<= 112 main_i)) (or (<= main_n 31) (<= main_i 112)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:08,772 INFO L273 TraceCheckUtils]: 56: Hoare triple {13419#(and (or (< 31 main_n) (<= 112 main_i)) (or (<= main_n 31) (<= main_i 112)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {13419#(and (or (< 31 main_n) (<= 112 main_i)) (or (<= main_n 31) (<= main_i 112)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:08,773 INFO L273 TraceCheckUtils]: 57: Hoare triple {13419#(and (or (< 31 main_n) (<= 112 main_i)) (or (<= main_n 31) (<= main_i 112)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {13420#(and (or (<= 116 main_i) (< 31 main_n)) (or (<= main_n 31) (<= main_i 116)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:08,774 INFO L273 TraceCheckUtils]: 58: Hoare triple {13420#(and (or (<= 116 main_i) (< 31 main_n)) (or (<= main_n 31) (<= main_i 116)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {13420#(and (or (<= 116 main_i) (< 31 main_n)) (or (<= main_n 31) (<= main_i 116)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:08,775 INFO L273 TraceCheckUtils]: 59: Hoare triple {13420#(and (or (<= 116 main_i) (< 31 main_n)) (or (<= main_n 31) (<= main_i 116)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {13421#(and (or (<= 120 main_i) (< 31 main_n)) (or (<= main_i 120) (<= main_n 31)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:08,776 INFO L273 TraceCheckUtils]: 60: Hoare triple {13421#(and (or (<= 120 main_i) (< 31 main_n)) (or (<= main_i 120) (<= main_n 31)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {13421#(and (or (<= 120 main_i) (< 31 main_n)) (or (<= main_i 120) (<= main_n 31)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:08,777 INFO L273 TraceCheckUtils]: 61: Hoare triple {13421#(and (or (<= 120 main_i) (< 31 main_n)) (or (<= main_i 120) (<= main_n 31)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {13422#(and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (or (= (* 4 main_n) main_i) (and (or (<= main_n 31) (<= main_i 124)) (or (<= (* 4 main_n) main_i) (< 31 main_n)))))} is VALID [2019-01-31 14:34:08,778 INFO L273 TraceCheckUtils]: 62: Hoare triple {13422#(and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (or (= (* 4 main_n) main_i) (and (or (<= main_n 31) (<= main_i 124)) (or (<= (* 4 main_n) main_i) (< 31 main_n)))))} assume i <= n * 4; {13423#(and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (or (= (* 4 main_n) main_i) (and (< 31 main_n) (<= main_i 124))))} is VALID [2019-01-31 14:34:08,779 INFO L273 TraceCheckUtils]: 63: Hoare triple {13423#(and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (or (= (* 4 main_n) main_i) (and (< 31 main_n) (<= main_i 124))))} assume a[i] != 23;i := i + 4; {13424#(and (< 31 main_n) (<= main_i 128))} is VALID [2019-01-31 14:34:08,780 INFO L273 TraceCheckUtils]: 64: Hoare triple {13424#(and (< 31 main_n) (<= main_i 128))} assume !(i <= n * 4); {13390#false} is VALID [2019-01-31 14:34:08,799 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 14:34:08,800 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-31 14:34:08,800 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-01-31 14:34:08,800 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-01-31 14:34:08,800 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-01-31 14:34:08,800 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-31 14:34:08,800 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 14:34:08,808 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-31 14:34:08,808 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2019-01-31 14:34:08,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-31 14:34:08,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-31 14:34:08,844 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-31 14:34:08,860 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 14:34:08,865 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-01-31 14:34:08,873 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-31 14:34:08,873 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2019-01-31 14:34:08,875 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-01-31 14:34:08,875 WARN L398 uantifierElimination]: Input elimination task: ∃ [v_main_a_35]. (and (= (store v_main_a_35 (* 4 main_n) 23) main_a) (= main_i 0)) [2019-01-31 14:34:08,875 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2019-01-31 14:34:10,925 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2019-01-31 14:34:10,927 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-01-31 14:34:10,933 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-31 14:34:10,933 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2019-01-31 14:34:10,936 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-01-31 14:34:10,936 WARN L398 uantifierElimination]: Input elimination task: ∃ [main_a]. (let ((.cse0 (* 4 main_n))) (and (<= 124 .cse0) (not (= (select main_a 124) 23)) (<= main_i 128) (= 23 (select main_a .cse0)))) [2019-01-31 14:34:10,936 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (let ((.cse0 (* 4 main_n))) (and (<= 124 .cse0) (<= main_i 128) (not (= 124 .cse0)))) [2019-01-31 14:34:10,983 INFO L273 TraceCheckUtils]: 0: Hoare triple {13389#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {13428#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:10,984 INFO L273 TraceCheckUtils]: 1: Hoare triple {13428#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {13432#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2019-01-31 14:34:10,984 INFO L273 TraceCheckUtils]: 2: Hoare triple {13432#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume i <= n * 4; {13432#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2019-01-31 14:34:10,985 INFO L273 TraceCheckUtils]: 3: Hoare triple {13432#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume a[i] != 23;i := i + 4; {13439#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:10,985 INFO L273 TraceCheckUtils]: 4: Hoare triple {13439#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {13439#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:10,986 INFO L273 TraceCheckUtils]: 5: Hoare triple {13439#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {13446#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2019-01-31 14:34:10,987 INFO L273 TraceCheckUtils]: 6: Hoare triple {13446#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume i <= n * 4; {13446#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2019-01-31 14:34:10,987 INFO L273 TraceCheckUtils]: 7: Hoare triple {13446#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume a[i] != 23;i := i + 4; {13453#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:10,988 INFO L273 TraceCheckUtils]: 8: Hoare triple {13453#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {13453#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:10,989 INFO L273 TraceCheckUtils]: 9: Hoare triple {13453#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {13460#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:10,989 INFO L273 TraceCheckUtils]: 10: Hoare triple {13460#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {13460#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:10,990 INFO L273 TraceCheckUtils]: 11: Hoare triple {13460#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {13467#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:10,991 INFO L273 TraceCheckUtils]: 12: Hoare triple {13467#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {13467#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:10,991 INFO L273 TraceCheckUtils]: 13: Hoare triple {13467#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {13474#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:10,992 INFO L273 TraceCheckUtils]: 14: Hoare triple {13474#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {13474#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:10,993 INFO L273 TraceCheckUtils]: 15: Hoare triple {13474#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {13481#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:10,993 INFO L273 TraceCheckUtils]: 16: Hoare triple {13481#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {13481#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:10,994 INFO L273 TraceCheckUtils]: 17: Hoare triple {13481#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {13488#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:10,995 INFO L273 TraceCheckUtils]: 18: Hoare triple {13488#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {13488#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:10,996 INFO L273 TraceCheckUtils]: 19: Hoare triple {13488#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {13495#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:10,996 INFO L273 TraceCheckUtils]: 20: Hoare triple {13495#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {13495#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:10,997 INFO L273 TraceCheckUtils]: 21: Hoare triple {13495#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {13502#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:10,998 INFO L273 TraceCheckUtils]: 22: Hoare triple {13502#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {13502#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:10,998 INFO L273 TraceCheckUtils]: 23: Hoare triple {13502#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {13509#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:10,999 INFO L273 TraceCheckUtils]: 24: Hoare triple {13509#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {13509#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:11,000 INFO L273 TraceCheckUtils]: 25: Hoare triple {13509#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {13516#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:11,000 INFO L273 TraceCheckUtils]: 26: Hoare triple {13516#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {13516#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:11,001 INFO L273 TraceCheckUtils]: 27: Hoare triple {13516#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {13523#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:11,002 INFO L273 TraceCheckUtils]: 28: Hoare triple {13523#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {13523#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:11,003 INFO L273 TraceCheckUtils]: 29: Hoare triple {13523#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {13530#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:11,003 INFO L273 TraceCheckUtils]: 30: Hoare triple {13530#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {13530#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:11,004 INFO L273 TraceCheckUtils]: 31: Hoare triple {13530#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {13537#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:11,005 INFO L273 TraceCheckUtils]: 32: Hoare triple {13537#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {13537#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:11,006 INFO L273 TraceCheckUtils]: 33: Hoare triple {13537#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {13544#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:11,006 INFO L273 TraceCheckUtils]: 34: Hoare triple {13544#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {13544#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:11,007 INFO L273 TraceCheckUtils]: 35: Hoare triple {13544#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {13551#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:11,008 INFO L273 TraceCheckUtils]: 36: Hoare triple {13551#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {13551#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:11,008 INFO L273 TraceCheckUtils]: 37: Hoare triple {13551#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {13558#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:11,009 INFO L273 TraceCheckUtils]: 38: Hoare triple {13558#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {13558#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:11,010 INFO L273 TraceCheckUtils]: 39: Hoare triple {13558#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {13565#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} is VALID [2019-01-31 14:34:11,011 INFO L273 TraceCheckUtils]: 40: Hoare triple {13565#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} assume i <= n * 4; {13565#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} is VALID [2019-01-31 14:34:11,011 INFO L273 TraceCheckUtils]: 41: Hoare triple {13565#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} assume a[i] != 23;i := i + 4; {13572#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:11,012 INFO L273 TraceCheckUtils]: 42: Hoare triple {13572#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {13572#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:11,013 INFO L273 TraceCheckUtils]: 43: Hoare triple {13572#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {13579#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:11,014 INFO L273 TraceCheckUtils]: 44: Hoare triple {13579#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {13579#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:11,014 INFO L273 TraceCheckUtils]: 45: Hoare triple {13579#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {13586#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:11,015 INFO L273 TraceCheckUtils]: 46: Hoare triple {13586#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {13586#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:11,016 INFO L273 TraceCheckUtils]: 47: Hoare triple {13586#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {13593#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:11,017 INFO L273 TraceCheckUtils]: 48: Hoare triple {13593#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {13593#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:11,017 INFO L273 TraceCheckUtils]: 49: Hoare triple {13593#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {13600#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:11,018 INFO L273 TraceCheckUtils]: 50: Hoare triple {13600#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {13600#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:11,019 INFO L273 TraceCheckUtils]: 51: Hoare triple {13600#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {13607#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:11,019 INFO L273 TraceCheckUtils]: 52: Hoare triple {13607#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {13607#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:11,020 INFO L273 TraceCheckUtils]: 53: Hoare triple {13607#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {13614#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:11,021 INFO L273 TraceCheckUtils]: 54: Hoare triple {13614#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {13614#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:11,021 INFO L273 TraceCheckUtils]: 55: Hoare triple {13614#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {13621#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:11,022 INFO L273 TraceCheckUtils]: 56: Hoare triple {13621#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {13621#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:11,023 INFO L273 TraceCheckUtils]: 57: Hoare triple {13621#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {13628#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:11,023 INFO L273 TraceCheckUtils]: 58: Hoare triple {13628#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {13628#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:11,024 INFO L273 TraceCheckUtils]: 59: Hoare triple {13628#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {13635#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:11,025 INFO L273 TraceCheckUtils]: 60: Hoare triple {13635#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {13635#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:11,026 INFO L273 TraceCheckUtils]: 61: Hoare triple {13635#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {13642#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:11,026 INFO L273 TraceCheckUtils]: 62: Hoare triple {13642#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {13646#(and (= main_i 124) (<= main_i (* 4 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:11,027 INFO L273 TraceCheckUtils]: 63: Hoare triple {13646#(and (= main_i 124) (<= main_i (* 4 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {13424#(and (< 31 main_n) (<= main_i 128))} is VALID [2019-01-31 14:34:11,028 INFO L273 TraceCheckUtils]: 64: Hoare triple {13424#(and (< 31 main_n) (<= main_i 128))} assume !(i <= n * 4); {13390#false} is VALID [2019-01-31 14:34:11,039 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 14:34:11,039 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2019-01-31 14:34:14,095 INFO L273 TraceCheckUtils]: 64: Hoare triple {13653#(<= main_i (* 4 main_n))} assume !(i <= n * 4); {13390#false} is VALID [2019-01-31 14:34:14,096 INFO L273 TraceCheckUtils]: 63: Hoare triple {13657#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} assume a[i] != 23;i := i + 4; {13653#(<= main_i (* 4 main_n))} is VALID [2019-01-31 14:34:14,097 INFO L273 TraceCheckUtils]: 62: Hoare triple {13661#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} assume i <= n * 4; {13657#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} is VALID [2019-01-31 14:34:14,097 INFO L273 TraceCheckUtils]: 61: Hoare triple {13665#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume a[i] != 23;i := i + 4; {13661#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} is VALID [2019-01-31 14:34:14,098 INFO L273 TraceCheckUtils]: 60: Hoare triple {13665#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume i <= n * 4; {13665#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2019-01-31 14:34:14,098 INFO L273 TraceCheckUtils]: 59: Hoare triple {13672#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume a[i] != 23;i := i + 4; {13665#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2019-01-31 14:34:14,099 INFO L273 TraceCheckUtils]: 58: Hoare triple {13672#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume i <= n * 4; {13672#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2019-01-31 14:34:14,101 INFO L273 TraceCheckUtils]: 57: Hoare triple {13679#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume a[i] != 23;i := i + 4; {13672#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2019-01-31 14:34:14,101 INFO L273 TraceCheckUtils]: 56: Hoare triple {13679#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume i <= n * 4; {13679#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2019-01-31 14:34:14,102 INFO L273 TraceCheckUtils]: 55: Hoare triple {13686#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume a[i] != 23;i := i + 4; {13679#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2019-01-31 14:34:14,102 INFO L273 TraceCheckUtils]: 54: Hoare triple {13686#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume i <= n * 4; {13686#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2019-01-31 14:34:14,103 INFO L273 TraceCheckUtils]: 53: Hoare triple {13693#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {13686#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2019-01-31 14:34:14,103 INFO L273 TraceCheckUtils]: 52: Hoare triple {13693#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume i <= n * 4; {13693#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2019-01-31 14:34:14,104 INFO L273 TraceCheckUtils]: 51: Hoare triple {13700#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume a[i] != 23;i := i + 4; {13693#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2019-01-31 14:34:14,104 INFO L273 TraceCheckUtils]: 50: Hoare triple {13700#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume i <= n * 4; {13700#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2019-01-31 14:34:14,105 INFO L273 TraceCheckUtils]: 49: Hoare triple {13707#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {13700#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2019-01-31 14:34:14,105 INFO L273 TraceCheckUtils]: 48: Hoare triple {13707#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume i <= n * 4; {13707#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2019-01-31 14:34:14,106 INFO L273 TraceCheckUtils]: 47: Hoare triple {13714#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {13707#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2019-01-31 14:34:14,107 INFO L273 TraceCheckUtils]: 46: Hoare triple {13714#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume i <= n * 4; {13714#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2019-01-31 14:34:14,108 INFO L273 TraceCheckUtils]: 45: Hoare triple {13721#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {13714#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2019-01-31 14:34:14,109 INFO L273 TraceCheckUtils]: 44: Hoare triple {13721#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume i <= n * 4; {13721#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2019-01-31 14:34:14,110 INFO L273 TraceCheckUtils]: 43: Hoare triple {13728#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} assume a[i] != 23;i := i + 4; {13721#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2019-01-31 14:34:14,110 INFO L273 TraceCheckUtils]: 42: Hoare triple {13728#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} assume i <= n * 4; {13728#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} is VALID [2019-01-31 14:34:14,111 INFO L273 TraceCheckUtils]: 41: Hoare triple {13735#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {13728#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} is VALID [2019-01-31 14:34:14,112 INFO L273 TraceCheckUtils]: 40: Hoare triple {13735#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} assume i <= n * 4; {13735#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} is VALID [2019-01-31 14:34:14,113 INFO L273 TraceCheckUtils]: 39: Hoare triple {13742#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {13735#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} is VALID [2019-01-31 14:34:14,113 INFO L273 TraceCheckUtils]: 38: Hoare triple {13742#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} assume i <= n * 4; {13742#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} is VALID [2019-01-31 14:34:14,114 INFO L273 TraceCheckUtils]: 37: Hoare triple {13749#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} assume a[i] != 23;i := i + 4; {13742#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} is VALID [2019-01-31 14:34:14,115 INFO L273 TraceCheckUtils]: 36: Hoare triple {13749#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} assume i <= n * 4; {13749#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} is VALID [2019-01-31 14:34:14,116 INFO L273 TraceCheckUtils]: 35: Hoare triple {13756#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {13749#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} is VALID [2019-01-31 14:34:14,117 INFO L273 TraceCheckUtils]: 34: Hoare triple {13756#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} assume i <= n * 4; {13756#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} is VALID [2019-01-31 14:34:14,118 INFO L273 TraceCheckUtils]: 33: Hoare triple {13763#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} assume a[i] != 23;i := i + 4; {13756#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} is VALID [2019-01-31 14:34:14,118 INFO L273 TraceCheckUtils]: 32: Hoare triple {13763#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} assume i <= n * 4; {13763#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} is VALID [2019-01-31 14:34:14,119 INFO L273 TraceCheckUtils]: 31: Hoare triple {13770#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} assume a[i] != 23;i := i + 4; {13763#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} is VALID [2019-01-31 14:34:14,120 INFO L273 TraceCheckUtils]: 30: Hoare triple {13770#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} assume i <= n * 4; {13770#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} is VALID [2019-01-31 14:34:14,121 INFO L273 TraceCheckUtils]: 29: Hoare triple {13777#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} assume a[i] != 23;i := i + 4; {13770#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} is VALID [2019-01-31 14:34:14,121 INFO L273 TraceCheckUtils]: 28: Hoare triple {13777#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} assume i <= n * 4; {13777#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} is VALID [2019-01-31 14:34:14,122 INFO L273 TraceCheckUtils]: 27: Hoare triple {13784#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} assume a[i] != 23;i := i + 4; {13777#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} is VALID [2019-01-31 14:34:14,123 INFO L273 TraceCheckUtils]: 26: Hoare triple {13784#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} assume i <= n * 4; {13784#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} is VALID [2019-01-31 14:34:14,124 INFO L273 TraceCheckUtils]: 25: Hoare triple {13791#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} assume a[i] != 23;i := i + 4; {13784#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} is VALID [2019-01-31 14:34:14,125 INFO L273 TraceCheckUtils]: 24: Hoare triple {13791#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} assume i <= n * 4; {13791#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} is VALID [2019-01-31 14:34:14,126 INFO L273 TraceCheckUtils]: 23: Hoare triple {13798#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} assume a[i] != 23;i := i + 4; {13791#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} is VALID [2019-01-31 14:34:14,126 INFO L273 TraceCheckUtils]: 22: Hoare triple {13798#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} assume i <= n * 4; {13798#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} is VALID [2019-01-31 14:34:14,127 INFO L273 TraceCheckUtils]: 21: Hoare triple {13805#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {13798#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} is VALID [2019-01-31 14:34:14,128 INFO L273 TraceCheckUtils]: 20: Hoare triple {13805#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} assume i <= n * 4; {13805#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} is VALID [2019-01-31 14:34:14,129 INFO L273 TraceCheckUtils]: 19: Hoare triple {13812#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {13805#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} is VALID [2019-01-31 14:34:14,129 INFO L273 TraceCheckUtils]: 18: Hoare triple {13812#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} assume i <= n * 4; {13812#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} is VALID [2019-01-31 14:34:14,130 INFO L273 TraceCheckUtils]: 17: Hoare triple {13819#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {13812#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} is VALID [2019-01-31 14:34:14,131 INFO L273 TraceCheckUtils]: 16: Hoare triple {13819#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} assume i <= n * 4; {13819#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} is VALID [2019-01-31 14:34:14,132 INFO L273 TraceCheckUtils]: 15: Hoare triple {13826#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} assume a[i] != 23;i := i + 4; {13819#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} is VALID [2019-01-31 14:34:14,133 INFO L273 TraceCheckUtils]: 14: Hoare triple {13826#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} assume i <= n * 4; {13826#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} is VALID [2019-01-31 14:34:14,134 INFO L273 TraceCheckUtils]: 13: Hoare triple {13833#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {13826#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} is VALID [2019-01-31 14:34:14,134 INFO L273 TraceCheckUtils]: 12: Hoare triple {13833#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} assume i <= n * 4; {13833#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} is VALID [2019-01-31 14:34:14,135 INFO L273 TraceCheckUtils]: 11: Hoare triple {13840#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} assume a[i] != 23;i := i + 4; {13833#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} is VALID [2019-01-31 14:34:14,136 INFO L273 TraceCheckUtils]: 10: Hoare triple {13840#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} assume i <= n * 4; {13840#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} is VALID [2019-01-31 14:34:14,137 INFO L273 TraceCheckUtils]: 9: Hoare triple {13847#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} assume a[i] != 23;i := i + 4; {13840#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} is VALID [2019-01-31 14:34:14,137 INFO L273 TraceCheckUtils]: 8: Hoare triple {13847#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} assume i <= n * 4; {13847#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} is VALID [2019-01-31 14:34:14,138 INFO L273 TraceCheckUtils]: 7: Hoare triple {13854#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} assume a[i] != 23;i := i + 4; {13847#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} is VALID [2019-01-31 14:34:14,139 INFO L273 TraceCheckUtils]: 6: Hoare triple {13854#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} assume i <= n * 4; {13854#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} is VALID [2019-01-31 14:34:14,140 INFO L273 TraceCheckUtils]: 5: Hoare triple {13861#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {13854#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} is VALID [2019-01-31 14:34:14,141 INFO L273 TraceCheckUtils]: 4: Hoare triple {13861#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} assume i <= n * 4; {13861#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} is VALID [2019-01-31 14:34:14,142 INFO L273 TraceCheckUtils]: 3: Hoare triple {13868#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {13861#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} is VALID [2019-01-31 14:34:14,142 INFO L273 TraceCheckUtils]: 2: Hoare triple {13868#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} assume i <= n * 4; {13868#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} is VALID [2019-01-31 14:34:14,143 INFO L273 TraceCheckUtils]: 1: Hoare triple {13875#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} assume a[i] != 23;i := i + 4; {13868#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} is VALID [2019-01-31 14:34:14,144 INFO L273 TraceCheckUtils]: 0: Hoare triple {13389#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {13875#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} is VALID [2019-01-31 14:34:14,161 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 14:34:14,179 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-01-31 14:34:14,179 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [34, 34, 34] total 101 [2019-01-31 14:34:14,179 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-01-31 14:34:14,179 INFO L78 Accepts]: Start accepts. Automaton has 69 states. Word has length 65 [2019-01-31 14:34:14,180 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-01-31 14:34:14,180 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 69 states. [2019-01-31 14:34:14,331 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 129 edges. 129 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-01-31 14:34:14,331 INFO L459 AbstractCegarLoop]: Interpolant automaton has 69 states [2019-01-31 14:34:14,331 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 69 interpolants. [2019-01-31 14:34:14,332 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1334, Invalid=9172, Unknown=0, NotChecked=0, Total=10506 [2019-01-31 14:34:14,332 INFO L87 Difference]: Start difference. First operand 66 states and 66 transitions. Second operand 69 states. [2019-01-31 14:34:22,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 14:34:22,629 INFO L93 Difference]: Finished difference Result 70 states and 70 transitions. [2019-01-31 14:34:22,629 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2019-01-31 14:34:22,630 INFO L78 Accepts]: Start accepts. Automaton has 69 states. Word has length 65 [2019-01-31 14:34:22,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-31 14:34:22,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69 states. [2019-01-31 14:34:22,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 70 transitions. [2019-01-31 14:34:22,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69 states. [2019-01-31 14:34:22,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 70 transitions. [2019-01-31 14:34:22,632 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 36 states and 70 transitions. [2019-01-31 14:34:22,744 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 14:34:22,745 INFO L225 Difference]: With dead ends: 70 [2019-01-31 14:34:22,745 INFO L226 Difference]: Without dead ends: 69 [2019-01-31 14:34:22,746 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 60 SyntacticMatches, 1 SemanticMatches, 101 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2376 ImplicationChecksByTransitivity, 6.1s TimeCoverageRelationStatistics Valid=1334, Invalid=9172, Unknown=0, NotChecked=0, Total=10506 [2019-01-31 14:34:22,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2019-01-31 14:34:22,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 68. [2019-01-31 14:34:22,807 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-01-31 14:34:22,807 INFO L82 GeneralOperation]: Start isEquivalent. First operand 69 states. Second operand 68 states. [2019-01-31 14:34:22,808 INFO L74 IsIncluded]: Start isIncluded. First operand 69 states. Second operand 68 states. [2019-01-31 14:34:22,808 INFO L87 Difference]: Start difference. First operand 69 states. Second operand 68 states. [2019-01-31 14:34:22,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 14:34:22,809 INFO L93 Difference]: Finished difference Result 69 states and 69 transitions. [2019-01-31 14:34:22,809 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 69 transitions. [2019-01-31 14:34:22,810 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-31 14:34:22,810 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-01-31 14:34:22,810 INFO L74 IsIncluded]: Start isIncluded. First operand 68 states. Second operand 69 states. [2019-01-31 14:34:22,810 INFO L87 Difference]: Start difference. First operand 68 states. Second operand 69 states. [2019-01-31 14:34:22,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 14:34:22,810 INFO L93 Difference]: Finished difference Result 69 states and 69 transitions. [2019-01-31 14:34:22,811 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 69 transitions. [2019-01-31 14:34:22,811 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-31 14:34:22,811 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-01-31 14:34:22,811 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-01-31 14:34:22,811 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-01-31 14:34:22,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2019-01-31 14:34:22,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 68 transitions. [2019-01-31 14:34:22,812 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 68 transitions. Word has length 65 [2019-01-31 14:34:22,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-31 14:34:22,812 INFO L480 AbstractCegarLoop]: Abstraction has 68 states and 68 transitions. [2019-01-31 14:34:22,812 INFO L481 AbstractCegarLoop]: Interpolant automaton has 69 states. [2019-01-31 14:34:22,812 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 68 transitions. [2019-01-31 14:34:22,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2019-01-31 14:34:22,813 INFO L394 BasicCegarLoop]: Found error trace [2019-01-31 14:34:22,813 INFO L402 BasicCegarLoop]: trace histogram [33, 32, 1, 1] [2019-01-31 14:34:22,813 INFO L423 AbstractCegarLoop]: === Iteration 33 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-01-31 14:34:22,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-31 14:34:22,813 INFO L82 PathProgramCache]: Analyzing trace with hash -679115488, now seen corresponding path program 32 times [2019-01-31 14:34:22,813 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-01-31 14:34:22,814 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-31 14:34:22,814 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-31 14:34:22,814 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-31 14:34:22,814 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-01-31 14:34:22,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-31 14:34:24,506 INFO L273 TraceCheckUtils]: 0: Hoare triple {14221#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {14223#(and (or (< 32 main_n) (<= 0 main_i)) (or (<= main_n 32) (<= main_i 0)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:24,507 INFO L273 TraceCheckUtils]: 1: Hoare triple {14223#(and (or (< 32 main_n) (<= 0 main_i)) (or (<= main_n 32) (<= main_i 0)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {14224#(and (or (<= main_n 32) (<= main_i 4)) (or (< 32 main_n) (<= 4 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:24,508 INFO L273 TraceCheckUtils]: 2: Hoare triple {14224#(and (or (<= main_n 32) (<= main_i 4)) (or (< 32 main_n) (<= 4 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {14224#(and (or (<= main_n 32) (<= main_i 4)) (or (< 32 main_n) (<= 4 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:24,509 INFO L273 TraceCheckUtils]: 3: Hoare triple {14224#(and (or (<= main_n 32) (<= main_i 4)) (or (< 32 main_n) (<= 4 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {14225#(and (or (< 32 main_n) (<= 8 main_i)) (or (<= main_n 32) (<= main_i 8)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:24,510 INFO L273 TraceCheckUtils]: 4: Hoare triple {14225#(and (or (< 32 main_n) (<= 8 main_i)) (or (<= main_n 32) (<= main_i 8)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {14225#(and (or (< 32 main_n) (<= 8 main_i)) (or (<= main_n 32) (<= main_i 8)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:24,511 INFO L273 TraceCheckUtils]: 5: Hoare triple {14225#(and (or (< 32 main_n) (<= 8 main_i)) (or (<= main_n 32) (<= main_i 8)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {14226#(and (or (<= main_n 32) (<= main_i 12)) (or (< 32 main_n) (<= 12 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:24,511 INFO L273 TraceCheckUtils]: 6: Hoare triple {14226#(and (or (<= main_n 32) (<= main_i 12)) (or (< 32 main_n) (<= 12 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {14226#(and (or (<= main_n 32) (<= main_i 12)) (or (< 32 main_n) (<= 12 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:24,512 INFO L273 TraceCheckUtils]: 7: Hoare triple {14226#(and (or (<= main_n 32) (<= main_i 12)) (or (< 32 main_n) (<= 12 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {14227#(and (or (<= main_n 32) (<= main_i 16)) (= 23 (select main_a (* 4 main_n))) (or (< 32 main_n) (<= 16 main_i)))} is VALID [2019-01-31 14:34:24,513 INFO L273 TraceCheckUtils]: 8: Hoare triple {14227#(and (or (<= main_n 32) (<= main_i 16)) (= 23 (select main_a (* 4 main_n))) (or (< 32 main_n) (<= 16 main_i)))} assume i <= n * 4; {14227#(and (or (<= main_n 32) (<= main_i 16)) (= 23 (select main_a (* 4 main_n))) (or (< 32 main_n) (<= 16 main_i)))} is VALID [2019-01-31 14:34:24,514 INFO L273 TraceCheckUtils]: 9: Hoare triple {14227#(and (or (<= main_n 32) (<= main_i 16)) (= 23 (select main_a (* 4 main_n))) (or (< 32 main_n) (<= 16 main_i)))} assume a[i] != 23;i := i + 4; {14228#(and (or (< 32 main_n) (<= 20 main_i)) (or (<= main_n 32) (<= main_i 20)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:24,515 INFO L273 TraceCheckUtils]: 10: Hoare triple {14228#(and (or (< 32 main_n) (<= 20 main_i)) (or (<= main_n 32) (<= main_i 20)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {14228#(and (or (< 32 main_n) (<= 20 main_i)) (or (<= main_n 32) (<= main_i 20)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:24,516 INFO L273 TraceCheckUtils]: 11: Hoare triple {14228#(and (or (< 32 main_n) (<= 20 main_i)) (or (<= main_n 32) (<= main_i 20)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {14229#(and (or (< 32 main_n) (<= 24 main_i)) (or (<= main_n 32) (<= main_i 24)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:24,517 INFO L273 TraceCheckUtils]: 12: Hoare triple {14229#(and (or (< 32 main_n) (<= 24 main_i)) (or (<= main_n 32) (<= main_i 24)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {14229#(and (or (< 32 main_n) (<= 24 main_i)) (or (<= main_n 32) (<= main_i 24)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:24,518 INFO L273 TraceCheckUtils]: 13: Hoare triple {14229#(and (or (< 32 main_n) (<= 24 main_i)) (or (<= main_n 32) (<= main_i 24)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {14230#(and (or (<= main_n 32) (<= main_i 28)) (or (< 32 main_n) (<= 28 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:24,519 INFO L273 TraceCheckUtils]: 14: Hoare triple {14230#(and (or (<= main_n 32) (<= main_i 28)) (or (< 32 main_n) (<= 28 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {14230#(and (or (<= main_n 32) (<= main_i 28)) (or (< 32 main_n) (<= 28 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:24,520 INFO L273 TraceCheckUtils]: 15: Hoare triple {14230#(and (or (<= main_n 32) (<= main_i 28)) (or (< 32 main_n) (<= 28 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {14231#(and (or (< 32 main_n) (<= 32 main_i)) (or (<= main_i 32) (<= main_n 32)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:24,538 INFO L273 TraceCheckUtils]: 16: Hoare triple {14231#(and (or (< 32 main_n) (<= 32 main_i)) (or (<= main_i 32) (<= main_n 32)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {14231#(and (or (< 32 main_n) (<= 32 main_i)) (or (<= main_i 32) (<= main_n 32)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:24,540 INFO L273 TraceCheckUtils]: 17: Hoare triple {14231#(and (or (< 32 main_n) (<= 32 main_i)) (or (<= main_i 32) (<= main_n 32)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {14232#(and (or (< 32 main_n) (<= 36 main_i)) (or (<= main_i 36) (<= main_n 32)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:24,540 INFO L273 TraceCheckUtils]: 18: Hoare triple {14232#(and (or (< 32 main_n) (<= 36 main_i)) (or (<= main_i 36) (<= main_n 32)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {14232#(and (or (< 32 main_n) (<= 36 main_i)) (or (<= main_i 36) (<= main_n 32)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:24,560 INFO L273 TraceCheckUtils]: 19: Hoare triple {14232#(and (or (< 32 main_n) (<= 36 main_i)) (or (<= main_i 36) (<= main_n 32)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {14233#(and (or (< 32 main_n) (<= 40 main_i)) (or (<= main_n 32) (<= main_i 40)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:24,575 INFO L273 TraceCheckUtils]: 20: Hoare triple {14233#(and (or (< 32 main_n) (<= 40 main_i)) (or (<= main_n 32) (<= main_i 40)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {14233#(and (or (< 32 main_n) (<= 40 main_i)) (or (<= main_n 32) (<= main_i 40)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:24,584 INFO L273 TraceCheckUtils]: 21: Hoare triple {14233#(and (or (< 32 main_n) (<= 40 main_i)) (or (<= main_n 32) (<= main_i 40)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {14234#(and (or (<= main_n 32) (<= main_i 44)) (= 23 (select main_a (* 4 main_n))) (or (< 32 main_n) (<= 44 main_i)))} is VALID [2019-01-31 14:34:24,597 INFO L273 TraceCheckUtils]: 22: Hoare triple {14234#(and (or (<= main_n 32) (<= main_i 44)) (= 23 (select main_a (* 4 main_n))) (or (< 32 main_n) (<= 44 main_i)))} assume i <= n * 4; {14234#(and (or (<= main_n 32) (<= main_i 44)) (= 23 (select main_a (* 4 main_n))) (or (< 32 main_n) (<= 44 main_i)))} is VALID [2019-01-31 14:34:24,606 INFO L273 TraceCheckUtils]: 23: Hoare triple {14234#(and (or (<= main_n 32) (<= main_i 44)) (= 23 (select main_a (* 4 main_n))) (or (< 32 main_n) (<= 44 main_i)))} assume a[i] != 23;i := i + 4; {14235#(and (or (<= main_n 32) (<= main_i 48)) (or (< 32 main_n) (<= 48 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:24,619 INFO L273 TraceCheckUtils]: 24: Hoare triple {14235#(and (or (<= main_n 32) (<= main_i 48)) (or (< 32 main_n) (<= 48 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {14235#(and (or (<= main_n 32) (<= main_i 48)) (or (< 32 main_n) (<= 48 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:24,628 INFO L273 TraceCheckUtils]: 25: Hoare triple {14235#(and (or (<= main_n 32) (<= main_i 48)) (or (< 32 main_n) (<= 48 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {14236#(and (or (<= main_n 32) (<= main_i 52)) (= 23 (select main_a (* 4 main_n))) (or (< 32 main_n) (<= 52 main_i)))} is VALID [2019-01-31 14:34:24,640 INFO L273 TraceCheckUtils]: 26: Hoare triple {14236#(and (or (<= main_n 32) (<= main_i 52)) (= 23 (select main_a (* 4 main_n))) (or (< 32 main_n) (<= 52 main_i)))} assume i <= n * 4; {14236#(and (or (<= main_n 32) (<= main_i 52)) (= 23 (select main_a (* 4 main_n))) (or (< 32 main_n) (<= 52 main_i)))} is VALID [2019-01-31 14:34:24,656 INFO L273 TraceCheckUtils]: 27: Hoare triple {14236#(and (or (<= main_n 32) (<= main_i 52)) (= 23 (select main_a (* 4 main_n))) (or (< 32 main_n) (<= 52 main_i)))} assume a[i] != 23;i := i + 4; {14237#(and (or (<= main_n 32) (<= main_i 56)) (or (< 32 main_n) (<= 56 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:24,665 INFO L273 TraceCheckUtils]: 28: Hoare triple {14237#(and (or (<= main_n 32) (<= main_i 56)) (or (< 32 main_n) (<= 56 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {14237#(and (or (<= main_n 32) (<= main_i 56)) (or (< 32 main_n) (<= 56 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:24,679 INFO L273 TraceCheckUtils]: 29: Hoare triple {14237#(and (or (<= main_n 32) (<= main_i 56)) (or (< 32 main_n) (<= 56 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {14238#(and (or (<= main_n 32) (<= main_i 60)) (or (< 32 main_n) (<= 60 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:24,688 INFO L273 TraceCheckUtils]: 30: Hoare triple {14238#(and (or (<= main_n 32) (<= main_i 60)) (or (< 32 main_n) (<= 60 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {14238#(and (or (<= main_n 32) (<= main_i 60)) (or (< 32 main_n) (<= 60 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:24,701 INFO L273 TraceCheckUtils]: 31: Hoare triple {14238#(and (or (<= main_n 32) (<= main_i 60)) (or (< 32 main_n) (<= 60 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {14239#(and (or (< 32 main_n) (<= 64 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 32) (<= main_i 64)))} is VALID [2019-01-31 14:34:24,713 INFO L273 TraceCheckUtils]: 32: Hoare triple {14239#(and (or (< 32 main_n) (<= 64 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 32) (<= main_i 64)))} assume i <= n * 4; {14239#(and (or (< 32 main_n) (<= 64 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 32) (<= main_i 64)))} is VALID [2019-01-31 14:34:24,728 INFO L273 TraceCheckUtils]: 33: Hoare triple {14239#(and (or (< 32 main_n) (<= 64 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 32) (<= main_i 64)))} assume a[i] != 23;i := i + 4; {14240#(and (or (<= main_n 32) (<= main_i 68)) (= 23 (select main_a (* 4 main_n))) (or (< 32 main_n) (<= 68 main_i)))} is VALID [2019-01-31 14:34:24,737 INFO L273 TraceCheckUtils]: 34: Hoare triple {14240#(and (or (<= main_n 32) (<= main_i 68)) (= 23 (select main_a (* 4 main_n))) (or (< 32 main_n) (<= 68 main_i)))} assume i <= n * 4; {14240#(and (or (<= main_n 32) (<= main_i 68)) (= 23 (select main_a (* 4 main_n))) (or (< 32 main_n) (<= 68 main_i)))} is VALID [2019-01-31 14:34:24,750 INFO L273 TraceCheckUtils]: 35: Hoare triple {14240#(and (or (<= main_n 32) (<= main_i 68)) (= 23 (select main_a (* 4 main_n))) (or (< 32 main_n) (<= 68 main_i)))} assume a[i] != 23;i := i + 4; {14241#(and (or (<= main_n 32) (<= main_i 72)) (or (< 32 main_n) (<= 72 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:24,757 INFO L273 TraceCheckUtils]: 36: Hoare triple {14241#(and (or (<= main_n 32) (<= main_i 72)) (or (< 32 main_n) (<= 72 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {14241#(and (or (<= main_n 32) (<= main_i 72)) (or (< 32 main_n) (<= 72 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:24,760 INFO L273 TraceCheckUtils]: 37: Hoare triple {14241#(and (or (<= main_n 32) (<= main_i 72)) (or (< 32 main_n) (<= 72 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {14242#(and (or (<= main_n 32) (<= main_i 76)) (= 23 (select main_a (* 4 main_n))) (or (<= 76 main_i) (< 32 main_n)))} is VALID [2019-01-31 14:34:24,760 INFO L273 TraceCheckUtils]: 38: Hoare triple {14242#(and (or (<= main_n 32) (<= main_i 76)) (= 23 (select main_a (* 4 main_n))) (or (<= 76 main_i) (< 32 main_n)))} assume i <= n * 4; {14242#(and (or (<= main_n 32) (<= main_i 76)) (= 23 (select main_a (* 4 main_n))) (or (<= 76 main_i) (< 32 main_n)))} is VALID [2019-01-31 14:34:24,762 INFO L273 TraceCheckUtils]: 39: Hoare triple {14242#(and (or (<= main_n 32) (<= main_i 76)) (= 23 (select main_a (* 4 main_n))) (or (<= 76 main_i) (< 32 main_n)))} assume a[i] != 23;i := i + 4; {14243#(and (or (<= main_n 32) (<= main_i 80)) (or (< 32 main_n) (<= 80 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:24,762 INFO L273 TraceCheckUtils]: 40: Hoare triple {14243#(and (or (<= main_n 32) (<= main_i 80)) (or (< 32 main_n) (<= 80 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {14243#(and (or (<= main_n 32) (<= main_i 80)) (or (< 32 main_n) (<= 80 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:24,764 INFO L273 TraceCheckUtils]: 41: Hoare triple {14243#(and (or (<= main_n 32) (<= main_i 80)) (or (< 32 main_n) (<= 80 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {14244#(and (or (<= main_n 32) (<= main_i 84)) (or (< 32 main_n) (<= 84 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:24,764 INFO L273 TraceCheckUtils]: 42: Hoare triple {14244#(and (or (<= main_n 32) (<= main_i 84)) (or (< 32 main_n) (<= 84 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {14244#(and (or (<= main_n 32) (<= main_i 84)) (or (< 32 main_n) (<= 84 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:24,765 INFO L273 TraceCheckUtils]: 43: Hoare triple {14244#(and (or (<= main_n 32) (<= main_i 84)) (or (< 32 main_n) (<= 84 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {14245#(and (or (<= main_n 32) (<= main_i 88)) (= 23 (select main_a (* 4 main_n))) (or (< 32 main_n) (<= 88 main_i)))} is VALID [2019-01-31 14:34:24,765 INFO L273 TraceCheckUtils]: 44: Hoare triple {14245#(and (or (<= main_n 32) (<= main_i 88)) (= 23 (select main_a (* 4 main_n))) (or (< 32 main_n) (<= 88 main_i)))} assume i <= n * 4; {14245#(and (or (<= main_n 32) (<= main_i 88)) (= 23 (select main_a (* 4 main_n))) (or (< 32 main_n) (<= 88 main_i)))} is VALID [2019-01-31 14:34:24,766 INFO L273 TraceCheckUtils]: 45: Hoare triple {14245#(and (or (<= main_n 32) (<= main_i 88)) (= 23 (select main_a (* 4 main_n))) (or (< 32 main_n) (<= 88 main_i)))} assume a[i] != 23;i := i + 4; {14246#(and (or (< 32 main_n) (<= 92 main_i)) (or (<= main_n 32) (<= main_i 92)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:24,766 INFO L273 TraceCheckUtils]: 46: Hoare triple {14246#(and (or (< 32 main_n) (<= 92 main_i)) (or (<= main_n 32) (<= main_i 92)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {14246#(and (or (< 32 main_n) (<= 92 main_i)) (or (<= main_n 32) (<= main_i 92)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:24,767 INFO L273 TraceCheckUtils]: 47: Hoare triple {14246#(and (or (< 32 main_n) (<= 92 main_i)) (or (<= main_n 32) (<= main_i 92)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {14247#(and (or (<= main_i 96) (<= main_n 32)) (or (< 32 main_n) (<= 96 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:24,768 INFO L273 TraceCheckUtils]: 48: Hoare triple {14247#(and (or (<= main_i 96) (<= main_n 32)) (or (< 32 main_n) (<= 96 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {14247#(and (or (<= main_i 96) (<= main_n 32)) (or (< 32 main_n) (<= 96 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:24,768 INFO L273 TraceCheckUtils]: 49: Hoare triple {14247#(and (or (<= main_i 96) (<= main_n 32)) (or (< 32 main_n) (<= 96 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {14248#(and (or (< 32 main_n) (<= 100 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 32) (<= main_i 100)))} is VALID [2019-01-31 14:34:24,769 INFO L273 TraceCheckUtils]: 50: Hoare triple {14248#(and (or (< 32 main_n) (<= 100 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 32) (<= main_i 100)))} assume i <= n * 4; {14248#(and (or (< 32 main_n) (<= 100 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 32) (<= main_i 100)))} is VALID [2019-01-31 14:34:24,770 INFO L273 TraceCheckUtils]: 51: Hoare triple {14248#(and (or (< 32 main_n) (<= 100 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 32) (<= main_i 100)))} assume a[i] != 23;i := i + 4; {14249#(and (or (<= main_i 104) (<= main_n 32)) (= 23 (select main_a (* 4 main_n))) (or (< 32 main_n) (<= 104 main_i)))} is VALID [2019-01-31 14:34:24,771 INFO L273 TraceCheckUtils]: 52: Hoare triple {14249#(and (or (<= main_i 104) (<= main_n 32)) (= 23 (select main_a (* 4 main_n))) (or (< 32 main_n) (<= 104 main_i)))} assume i <= n * 4; {14249#(and (or (<= main_i 104) (<= main_n 32)) (= 23 (select main_a (* 4 main_n))) (or (< 32 main_n) (<= 104 main_i)))} is VALID [2019-01-31 14:34:24,772 INFO L273 TraceCheckUtils]: 53: Hoare triple {14249#(and (or (<= main_i 104) (<= main_n 32)) (= 23 (select main_a (* 4 main_n))) (or (< 32 main_n) (<= 104 main_i)))} assume a[i] != 23;i := i + 4; {14250#(and (or (< 32 main_n) (<= 108 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 32) (<= main_i 108)))} is VALID [2019-01-31 14:34:24,773 INFO L273 TraceCheckUtils]: 54: Hoare triple {14250#(and (or (< 32 main_n) (<= 108 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 32) (<= main_i 108)))} assume i <= n * 4; {14250#(and (or (< 32 main_n) (<= 108 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 32) (<= main_i 108)))} is VALID [2019-01-31 14:34:24,774 INFO L273 TraceCheckUtils]: 55: Hoare triple {14250#(and (or (< 32 main_n) (<= 108 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 32) (<= main_i 108)))} assume a[i] != 23;i := i + 4; {14251#(and (or (< 32 main_n) (<= 112 main_i)) (or (<= main_n 32) (<= main_i 112)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:24,774 INFO L273 TraceCheckUtils]: 56: Hoare triple {14251#(and (or (< 32 main_n) (<= 112 main_i)) (or (<= main_n 32) (<= main_i 112)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {14251#(and (or (< 32 main_n) (<= 112 main_i)) (or (<= main_n 32) (<= main_i 112)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:24,775 INFO L273 TraceCheckUtils]: 57: Hoare triple {14251#(and (or (< 32 main_n) (<= 112 main_i)) (or (<= main_n 32) (<= main_i 112)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {14252#(and (or (<= 116 main_i) (< 32 main_n)) (or (<= main_n 32) (<= main_i 116)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:24,776 INFO L273 TraceCheckUtils]: 58: Hoare triple {14252#(and (or (<= 116 main_i) (< 32 main_n)) (or (<= main_n 32) (<= main_i 116)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {14252#(and (or (<= 116 main_i) (< 32 main_n)) (or (<= main_n 32) (<= main_i 116)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:24,777 INFO L273 TraceCheckUtils]: 59: Hoare triple {14252#(and (or (<= 116 main_i) (< 32 main_n)) (or (<= main_n 32) (<= main_i 116)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {14253#(and (or (<= main_n 32) (<= main_i 120)) (= 23 (select main_a (* 4 main_n))) (or (< 32 main_n) (<= 120 main_i)))} is VALID [2019-01-31 14:34:24,778 INFO L273 TraceCheckUtils]: 60: Hoare triple {14253#(and (or (<= main_n 32) (<= main_i 120)) (= 23 (select main_a (* 4 main_n))) (or (< 32 main_n) (<= 120 main_i)))} assume i <= n * 4; {14253#(and (or (<= main_n 32) (<= main_i 120)) (= 23 (select main_a (* 4 main_n))) (or (< 32 main_n) (<= 120 main_i)))} is VALID [2019-01-31 14:34:24,779 INFO L273 TraceCheckUtils]: 61: Hoare triple {14253#(and (or (<= main_n 32) (<= main_i 120)) (= 23 (select main_a (* 4 main_n))) (or (< 32 main_n) (<= 120 main_i)))} assume a[i] != 23;i := i + 4; {14254#(and (or (<= main_n 32) (<= main_i 124)) (or (< 32 main_n) (<= 124 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:24,780 INFO L273 TraceCheckUtils]: 62: Hoare triple {14254#(and (or (<= main_n 32) (<= main_i 124)) (or (< 32 main_n) (<= 124 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {14254#(and (or (<= main_n 32) (<= main_i 124)) (or (< 32 main_n) (<= 124 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:24,781 INFO L273 TraceCheckUtils]: 63: Hoare triple {14254#(and (or (<= main_n 32) (<= main_i 124)) (or (< 32 main_n) (<= 124 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {14255#(and (or (= (* 4 main_n) main_i) (and (or (< 32 main_n) (<= (* 4 main_n) main_i)) (or (<= main_n 32) (<= main_i 128)))) (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))))} is VALID [2019-01-31 14:34:24,782 INFO L273 TraceCheckUtils]: 64: Hoare triple {14255#(and (or (= (* 4 main_n) main_i) (and (or (< 32 main_n) (<= (* 4 main_n) main_i)) (or (<= main_n 32) (<= main_i 128)))) (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))))} assume i <= n * 4; {14256#(and (or (= (* 4 main_n) main_i) (and (< 32 main_n) (<= main_i 128))) (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))))} is VALID [2019-01-31 14:34:24,783 INFO L273 TraceCheckUtils]: 65: Hoare triple {14256#(and (or (= (* 4 main_n) main_i) (and (< 32 main_n) (<= main_i 128))) (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))))} assume a[i] != 23;i := i + 4; {14257#(and (<= main_i 132) (<= 33 main_n))} is VALID [2019-01-31 14:34:24,784 INFO L273 TraceCheckUtils]: 66: Hoare triple {14257#(and (<= main_i 132) (<= 33 main_n))} assume !(i <= n * 4); {14222#false} is VALID [2019-01-31 14:34:24,804 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 14:34:24,804 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-31 14:34:24,804 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-01-31 14:34:24,804 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-01-31 14:34:24,805 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-01-31 14:34:24,805 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-31 14:34:24,805 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 14:34:24,813 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2019-01-31 14:34:24,813 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST2 (IT: FPandBP) [2019-01-31 14:34:24,862 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 33 check-sat command(s) [2019-01-31 14:34:24,862 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-01-31 14:34:24,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-31 14:34:24,901 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-31 14:34:24,940 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 14:34:24,942 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-01-31 14:34:24,948 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-31 14:34:24,948 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2019-01-31 14:34:24,950 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-01-31 14:34:24,950 WARN L398 uantifierElimination]: Input elimination task: ∃ [v_main_a_36]. (and (= (store v_main_a_36 (* 4 main_n) 23) main_a) (= main_i 0)) [2019-01-31 14:34:24,950 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2019-01-31 14:34:27,120 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2019-01-31 14:34:27,122 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-01-31 14:34:27,131 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-31 14:34:27,131 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2019-01-31 14:34:27,133 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-01-31 14:34:27,134 WARN L398 uantifierElimination]: Input elimination task: ∃ [main_a]. (let ((.cse0 (* 4 main_n))) (and (<= main_i 132) (not (= (select main_a 128) 23)) (<= 128 .cse0) (= 23 (select main_a .cse0)))) [2019-01-31 14:34:27,134 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (let ((.cse0 (* 4 main_n))) (and (<= main_i 132) (<= 128 .cse0) (not (= 128 .cse0)))) [2019-01-31 14:34:27,176 INFO L273 TraceCheckUtils]: 0: Hoare triple {14221#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {14261#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:27,176 INFO L273 TraceCheckUtils]: 1: Hoare triple {14261#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {14265#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2019-01-31 14:34:27,177 INFO L273 TraceCheckUtils]: 2: Hoare triple {14265#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume i <= n * 4; {14265#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2019-01-31 14:34:27,177 INFO L273 TraceCheckUtils]: 3: Hoare triple {14265#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume a[i] != 23;i := i + 4; {14272#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:27,178 INFO L273 TraceCheckUtils]: 4: Hoare triple {14272#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {14272#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:27,178 INFO L273 TraceCheckUtils]: 5: Hoare triple {14272#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {14279#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2019-01-31 14:34:27,178 INFO L273 TraceCheckUtils]: 6: Hoare triple {14279#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume i <= n * 4; {14279#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2019-01-31 14:34:27,179 INFO L273 TraceCheckUtils]: 7: Hoare triple {14279#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume a[i] != 23;i := i + 4; {14286#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:27,180 INFO L273 TraceCheckUtils]: 8: Hoare triple {14286#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {14286#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:27,180 INFO L273 TraceCheckUtils]: 9: Hoare triple {14286#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {14293#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:27,181 INFO L273 TraceCheckUtils]: 10: Hoare triple {14293#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {14293#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:27,182 INFO L273 TraceCheckUtils]: 11: Hoare triple {14293#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {14300#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:27,182 INFO L273 TraceCheckUtils]: 12: Hoare triple {14300#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {14300#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:27,183 INFO L273 TraceCheckUtils]: 13: Hoare triple {14300#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {14307#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:27,184 INFO L273 TraceCheckUtils]: 14: Hoare triple {14307#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {14307#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:27,185 INFO L273 TraceCheckUtils]: 15: Hoare triple {14307#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {14314#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:27,185 INFO L273 TraceCheckUtils]: 16: Hoare triple {14314#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {14314#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:27,186 INFO L273 TraceCheckUtils]: 17: Hoare triple {14314#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {14321#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:27,187 INFO L273 TraceCheckUtils]: 18: Hoare triple {14321#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {14321#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:27,188 INFO L273 TraceCheckUtils]: 19: Hoare triple {14321#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {14328#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:27,188 INFO L273 TraceCheckUtils]: 20: Hoare triple {14328#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {14328#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:27,189 INFO L273 TraceCheckUtils]: 21: Hoare triple {14328#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {14335#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:27,190 INFO L273 TraceCheckUtils]: 22: Hoare triple {14335#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {14335#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:27,190 INFO L273 TraceCheckUtils]: 23: Hoare triple {14335#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {14342#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:27,191 INFO L273 TraceCheckUtils]: 24: Hoare triple {14342#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {14342#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:27,192 INFO L273 TraceCheckUtils]: 25: Hoare triple {14342#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {14349#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:27,193 INFO L273 TraceCheckUtils]: 26: Hoare triple {14349#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {14349#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:27,193 INFO L273 TraceCheckUtils]: 27: Hoare triple {14349#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {14356#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:27,194 INFO L273 TraceCheckUtils]: 28: Hoare triple {14356#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {14356#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:27,195 INFO L273 TraceCheckUtils]: 29: Hoare triple {14356#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {14363#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:27,195 INFO L273 TraceCheckUtils]: 30: Hoare triple {14363#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {14363#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:27,196 INFO L273 TraceCheckUtils]: 31: Hoare triple {14363#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {14370#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:27,197 INFO L273 TraceCheckUtils]: 32: Hoare triple {14370#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {14370#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:27,198 INFO L273 TraceCheckUtils]: 33: Hoare triple {14370#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {14377#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:27,198 INFO L273 TraceCheckUtils]: 34: Hoare triple {14377#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {14377#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:27,199 INFO L273 TraceCheckUtils]: 35: Hoare triple {14377#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {14384#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:27,200 INFO L273 TraceCheckUtils]: 36: Hoare triple {14384#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {14384#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:27,200 INFO L273 TraceCheckUtils]: 37: Hoare triple {14384#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {14391#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:27,201 INFO L273 TraceCheckUtils]: 38: Hoare triple {14391#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {14391#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:27,202 INFO L273 TraceCheckUtils]: 39: Hoare triple {14391#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {14398#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} is VALID [2019-01-31 14:34:27,203 INFO L273 TraceCheckUtils]: 40: Hoare triple {14398#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} assume i <= n * 4; {14398#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} is VALID [2019-01-31 14:34:27,203 INFO L273 TraceCheckUtils]: 41: Hoare triple {14398#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} assume a[i] != 23;i := i + 4; {14405#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:27,204 INFO L273 TraceCheckUtils]: 42: Hoare triple {14405#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {14405#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:27,205 INFO L273 TraceCheckUtils]: 43: Hoare triple {14405#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {14412#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:27,205 INFO L273 TraceCheckUtils]: 44: Hoare triple {14412#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {14412#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:27,206 INFO L273 TraceCheckUtils]: 45: Hoare triple {14412#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {14419#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:27,207 INFO L273 TraceCheckUtils]: 46: Hoare triple {14419#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {14419#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:27,207 INFO L273 TraceCheckUtils]: 47: Hoare triple {14419#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {14426#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:27,208 INFO L273 TraceCheckUtils]: 48: Hoare triple {14426#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {14426#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:27,209 INFO L273 TraceCheckUtils]: 49: Hoare triple {14426#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {14433#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:27,210 INFO L273 TraceCheckUtils]: 50: Hoare triple {14433#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {14433#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:27,211 INFO L273 TraceCheckUtils]: 51: Hoare triple {14433#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {14440#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:27,212 INFO L273 TraceCheckUtils]: 52: Hoare triple {14440#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {14440#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:27,212 INFO L273 TraceCheckUtils]: 53: Hoare triple {14440#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {14447#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:27,213 INFO L273 TraceCheckUtils]: 54: Hoare triple {14447#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {14447#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:27,214 INFO L273 TraceCheckUtils]: 55: Hoare triple {14447#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {14454#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:27,214 INFO L273 TraceCheckUtils]: 56: Hoare triple {14454#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {14454#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:27,215 INFO L273 TraceCheckUtils]: 57: Hoare triple {14454#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {14461#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:27,216 INFO L273 TraceCheckUtils]: 58: Hoare triple {14461#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {14461#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:27,216 INFO L273 TraceCheckUtils]: 59: Hoare triple {14461#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {14468#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:27,217 INFO L273 TraceCheckUtils]: 60: Hoare triple {14468#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {14468#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:27,218 INFO L273 TraceCheckUtils]: 61: Hoare triple {14468#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {14475#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:27,219 INFO L273 TraceCheckUtils]: 62: Hoare triple {14475#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {14475#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:27,219 INFO L273 TraceCheckUtils]: 63: Hoare triple {14475#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {14482#(and (= main_i 128) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:27,220 INFO L273 TraceCheckUtils]: 64: Hoare triple {14482#(and (= main_i 128) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {14486#(and (<= main_i (* 4 main_n)) (= main_i 128) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:27,221 INFO L273 TraceCheckUtils]: 65: Hoare triple {14486#(and (<= main_i (* 4 main_n)) (= main_i 128) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {14257#(and (<= main_i 132) (<= 33 main_n))} is VALID [2019-01-31 14:34:27,222 INFO L273 TraceCheckUtils]: 66: Hoare triple {14257#(and (<= main_i 132) (<= 33 main_n))} assume !(i <= n * 4); {14222#false} is VALID [2019-01-31 14:34:27,235 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 14:34:27,236 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2019-01-31 14:34:30,458 INFO L273 TraceCheckUtils]: 66: Hoare triple {14493#(<= main_i (* 4 main_n))} assume !(i <= n * 4); {14222#false} is VALID [2019-01-31 14:34:30,459 INFO L273 TraceCheckUtils]: 65: Hoare triple {14497#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} assume a[i] != 23;i := i + 4; {14493#(<= main_i (* 4 main_n))} is VALID [2019-01-31 14:34:30,460 INFO L273 TraceCheckUtils]: 64: Hoare triple {14501#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} assume i <= n * 4; {14497#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} is VALID [2019-01-31 14:34:30,461 INFO L273 TraceCheckUtils]: 63: Hoare triple {14505#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume a[i] != 23;i := i + 4; {14501#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} is VALID [2019-01-31 14:34:30,461 INFO L273 TraceCheckUtils]: 62: Hoare triple {14505#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume i <= n * 4; {14505#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2019-01-31 14:34:30,462 INFO L273 TraceCheckUtils]: 61: Hoare triple {14512#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume a[i] != 23;i := i + 4; {14505#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2019-01-31 14:34:30,462 INFO L273 TraceCheckUtils]: 60: Hoare triple {14512#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume i <= n * 4; {14512#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2019-01-31 14:34:30,463 INFO L273 TraceCheckUtils]: 59: Hoare triple {14519#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume a[i] != 23;i := i + 4; {14512#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2019-01-31 14:34:30,463 INFO L273 TraceCheckUtils]: 58: Hoare triple {14519#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume i <= n * 4; {14519#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2019-01-31 14:34:30,465 INFO L273 TraceCheckUtils]: 57: Hoare triple {14526#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume a[i] != 23;i := i + 4; {14519#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2019-01-31 14:34:30,465 INFO L273 TraceCheckUtils]: 56: Hoare triple {14526#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume i <= n * 4; {14526#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2019-01-31 14:34:30,466 INFO L273 TraceCheckUtils]: 55: Hoare triple {14533#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {14526#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2019-01-31 14:34:30,467 INFO L273 TraceCheckUtils]: 54: Hoare triple {14533#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume i <= n * 4; {14533#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2019-01-31 14:34:30,468 INFO L273 TraceCheckUtils]: 53: Hoare triple {14540#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume a[i] != 23;i := i + 4; {14533#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2019-01-31 14:34:30,468 INFO L273 TraceCheckUtils]: 52: Hoare triple {14540#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume i <= n * 4; {14540#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2019-01-31 14:34:30,469 INFO L273 TraceCheckUtils]: 51: Hoare triple {14547#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {14540#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2019-01-31 14:34:30,470 INFO L273 TraceCheckUtils]: 50: Hoare triple {14547#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume i <= n * 4; {14547#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2019-01-31 14:34:30,471 INFO L273 TraceCheckUtils]: 49: Hoare triple {14554#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {14547#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2019-01-31 14:34:30,471 INFO L273 TraceCheckUtils]: 48: Hoare triple {14554#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume i <= n * 4; {14554#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2019-01-31 14:34:30,472 INFO L273 TraceCheckUtils]: 47: Hoare triple {14561#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {14554#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2019-01-31 14:34:30,473 INFO L273 TraceCheckUtils]: 46: Hoare triple {14561#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume i <= n * 4; {14561#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2019-01-31 14:34:30,474 INFO L273 TraceCheckUtils]: 45: Hoare triple {14568#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} assume a[i] != 23;i := i + 4; {14561#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2019-01-31 14:34:30,474 INFO L273 TraceCheckUtils]: 44: Hoare triple {14568#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} assume i <= n * 4; {14568#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} is VALID [2019-01-31 14:34:30,476 INFO L273 TraceCheckUtils]: 43: Hoare triple {14575#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {14568#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} is VALID [2019-01-31 14:34:30,476 INFO L273 TraceCheckUtils]: 42: Hoare triple {14575#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} assume i <= n * 4; {14575#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} is VALID [2019-01-31 14:34:30,477 INFO L273 TraceCheckUtils]: 41: Hoare triple {14582#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {14575#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} is VALID [2019-01-31 14:34:30,478 INFO L273 TraceCheckUtils]: 40: Hoare triple {14582#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} assume i <= n * 4; {14582#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} is VALID [2019-01-31 14:34:30,479 INFO L273 TraceCheckUtils]: 39: Hoare triple {14589#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} assume a[i] != 23;i := i + 4; {14582#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} is VALID [2019-01-31 14:34:30,479 INFO L273 TraceCheckUtils]: 38: Hoare triple {14589#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} assume i <= n * 4; {14589#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} is VALID [2019-01-31 14:34:30,480 INFO L273 TraceCheckUtils]: 37: Hoare triple {14596#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {14589#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} is VALID [2019-01-31 14:34:30,481 INFO L273 TraceCheckUtils]: 36: Hoare triple {14596#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} assume i <= n * 4; {14596#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} is VALID [2019-01-31 14:34:30,482 INFO L273 TraceCheckUtils]: 35: Hoare triple {14603#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} assume a[i] != 23;i := i + 4; {14596#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} is VALID [2019-01-31 14:34:30,482 INFO L273 TraceCheckUtils]: 34: Hoare triple {14603#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} assume i <= n * 4; {14603#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} is VALID [2019-01-31 14:34:30,483 INFO L273 TraceCheckUtils]: 33: Hoare triple {14610#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} assume a[i] != 23;i := i + 4; {14603#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} is VALID [2019-01-31 14:34:30,484 INFO L273 TraceCheckUtils]: 32: Hoare triple {14610#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} assume i <= n * 4; {14610#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} is VALID [2019-01-31 14:34:30,485 INFO L273 TraceCheckUtils]: 31: Hoare triple {14617#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} assume a[i] != 23;i := i + 4; {14610#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} is VALID [2019-01-31 14:34:30,485 INFO L273 TraceCheckUtils]: 30: Hoare triple {14617#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} assume i <= n * 4; {14617#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} is VALID [2019-01-31 14:34:30,486 INFO L273 TraceCheckUtils]: 29: Hoare triple {14624#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} assume a[i] != 23;i := i + 4; {14617#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} is VALID [2019-01-31 14:34:30,487 INFO L273 TraceCheckUtils]: 28: Hoare triple {14624#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} assume i <= n * 4; {14624#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} is VALID [2019-01-31 14:34:30,488 INFO L273 TraceCheckUtils]: 27: Hoare triple {14631#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} assume a[i] != 23;i := i + 4; {14624#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} is VALID [2019-01-31 14:34:30,489 INFO L273 TraceCheckUtils]: 26: Hoare triple {14631#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} assume i <= n * 4; {14631#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} is VALID [2019-01-31 14:34:30,490 INFO L273 TraceCheckUtils]: 25: Hoare triple {14638#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} assume a[i] != 23;i := i + 4; {14631#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} is VALID [2019-01-31 14:34:30,490 INFO L273 TraceCheckUtils]: 24: Hoare triple {14638#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} assume i <= n * 4; {14638#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} is VALID [2019-01-31 14:34:30,491 INFO L273 TraceCheckUtils]: 23: Hoare triple {14645#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {14638#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} is VALID [2019-01-31 14:34:30,492 INFO L273 TraceCheckUtils]: 22: Hoare triple {14645#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} assume i <= n * 4; {14645#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} is VALID [2019-01-31 14:34:30,493 INFO L273 TraceCheckUtils]: 21: Hoare triple {14652#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {14645#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} is VALID [2019-01-31 14:34:30,493 INFO L273 TraceCheckUtils]: 20: Hoare triple {14652#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} assume i <= n * 4; {14652#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} is VALID [2019-01-31 14:34:30,494 INFO L273 TraceCheckUtils]: 19: Hoare triple {14659#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {14652#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} is VALID [2019-01-31 14:34:30,495 INFO L273 TraceCheckUtils]: 18: Hoare triple {14659#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} assume i <= n * 4; {14659#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} is VALID [2019-01-31 14:34:30,496 INFO L273 TraceCheckUtils]: 17: Hoare triple {14666#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} assume a[i] != 23;i := i + 4; {14659#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} is VALID [2019-01-31 14:34:30,496 INFO L273 TraceCheckUtils]: 16: Hoare triple {14666#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} assume i <= n * 4; {14666#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} is VALID [2019-01-31 14:34:30,498 INFO L273 TraceCheckUtils]: 15: Hoare triple {14673#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {14666#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} is VALID [2019-01-31 14:34:30,498 INFO L273 TraceCheckUtils]: 14: Hoare triple {14673#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} assume i <= n * 4; {14673#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} is VALID [2019-01-31 14:34:30,499 INFO L273 TraceCheckUtils]: 13: Hoare triple {14680#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} assume a[i] != 23;i := i + 4; {14673#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} is VALID [2019-01-31 14:34:30,500 INFO L273 TraceCheckUtils]: 12: Hoare triple {14680#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} assume i <= n * 4; {14680#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} is VALID [2019-01-31 14:34:30,501 INFO L273 TraceCheckUtils]: 11: Hoare triple {14687#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} assume a[i] != 23;i := i + 4; {14680#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} is VALID [2019-01-31 14:34:30,501 INFO L273 TraceCheckUtils]: 10: Hoare triple {14687#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} assume i <= n * 4; {14687#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} is VALID [2019-01-31 14:34:30,502 INFO L273 TraceCheckUtils]: 9: Hoare triple {14694#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} assume a[i] != 23;i := i + 4; {14687#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} is VALID [2019-01-31 14:34:30,503 INFO L273 TraceCheckUtils]: 8: Hoare triple {14694#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} assume i <= n * 4; {14694#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} is VALID [2019-01-31 14:34:30,504 INFO L273 TraceCheckUtils]: 7: Hoare triple {14701#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {14694#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} is VALID [2019-01-31 14:34:30,504 INFO L273 TraceCheckUtils]: 6: Hoare triple {14701#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} assume i <= n * 4; {14701#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} is VALID [2019-01-31 14:34:30,505 INFO L273 TraceCheckUtils]: 5: Hoare triple {14708#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {14701#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} is VALID [2019-01-31 14:34:30,506 INFO L273 TraceCheckUtils]: 4: Hoare triple {14708#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} assume i <= n * 4; {14708#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} is VALID [2019-01-31 14:34:30,507 INFO L273 TraceCheckUtils]: 3: Hoare triple {14715#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} assume a[i] != 23;i := i + 4; {14708#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} is VALID [2019-01-31 14:34:30,508 INFO L273 TraceCheckUtils]: 2: Hoare triple {14715#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} assume i <= n * 4; {14715#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} is VALID [2019-01-31 14:34:30,509 INFO L273 TraceCheckUtils]: 1: Hoare triple {14722#(or (< (* 4 main_n) (+ main_i 128)) (= (select main_a (+ main_i 128)) 23) (< (+ main_i 131) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {14715#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} is VALID [2019-01-31 14:34:30,510 INFO L273 TraceCheckUtils]: 0: Hoare triple {14221#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {14722#(or (< (* 4 main_n) (+ main_i 128)) (= (select main_a (+ main_i 128)) 23) (< (+ main_i 131) (* 4 main_n)))} is VALID [2019-01-31 14:34:30,528 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 14:34:30,547 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-01-31 14:34:30,547 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [35, 35, 35] total 104 [2019-01-31 14:34:30,547 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-01-31 14:34:30,547 INFO L78 Accepts]: Start accepts. Automaton has 71 states. Word has length 67 [2019-01-31 14:34:30,548 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-01-31 14:34:30,548 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 71 states. [2019-01-31 14:34:30,713 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 133 edges. 133 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-01-31 14:34:30,714 INFO L459 AbstractCegarLoop]: Interpolant automaton has 71 states [2019-01-31 14:34:30,714 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 71 interpolants. [2019-01-31 14:34:30,714 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1408, Invalid=9722, Unknown=0, NotChecked=0, Total=11130 [2019-01-31 14:34:30,715 INFO L87 Difference]: Start difference. First operand 68 states and 68 transitions. Second operand 71 states. [2019-01-31 14:34:36,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 14:34:36,974 INFO L93 Difference]: Finished difference Result 72 states and 72 transitions. [2019-01-31 14:34:36,974 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2019-01-31 14:34:36,974 INFO L78 Accepts]: Start accepts. Automaton has 71 states. Word has length 67 [2019-01-31 14:34:36,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-31 14:34:36,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2019-01-31 14:34:36,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 72 transitions. [2019-01-31 14:34:36,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2019-01-31 14:34:36,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 72 transitions. [2019-01-31 14:34:36,976 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 37 states and 72 transitions. [2019-01-31 14:34:37,053 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 14:34:37,054 INFO L225 Difference]: With dead ends: 72 [2019-01-31 14:34:37,054 INFO L226 Difference]: Without dead ends: 71 [2019-01-31 14:34:37,055 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 62 SyntacticMatches, 1 SemanticMatches, 104 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2516 ImplicationChecksByTransitivity, 6.4s TimeCoverageRelationStatistics Valid=1408, Invalid=9722, Unknown=0, NotChecked=0, Total=11130 [2019-01-31 14:34:37,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2019-01-31 14:34:37,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 70. [2019-01-31 14:34:37,241 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-01-31 14:34:37,242 INFO L82 GeneralOperation]: Start isEquivalent. First operand 71 states. Second operand 70 states. [2019-01-31 14:34:37,242 INFO L74 IsIncluded]: Start isIncluded. First operand 71 states. Second operand 70 states. [2019-01-31 14:34:37,242 INFO L87 Difference]: Start difference. First operand 71 states. Second operand 70 states. [2019-01-31 14:34:37,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 14:34:37,243 INFO L93 Difference]: Finished difference Result 71 states and 71 transitions. [2019-01-31 14:34:37,243 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 71 transitions. [2019-01-31 14:34:37,244 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-31 14:34:37,244 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-01-31 14:34:37,244 INFO L74 IsIncluded]: Start isIncluded. First operand 70 states. Second operand 71 states. [2019-01-31 14:34:37,244 INFO L87 Difference]: Start difference. First operand 70 states. Second operand 71 states. [2019-01-31 14:34:37,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 14:34:37,245 INFO L93 Difference]: Finished difference Result 71 states and 71 transitions. [2019-01-31 14:34:37,246 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 71 transitions. [2019-01-31 14:34:37,248 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-31 14:34:37,248 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-01-31 14:34:37,248 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-01-31 14:34:37,248 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-01-31 14:34:37,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 70 states. [2019-01-31 14:34:37,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 70 transitions. [2019-01-31 14:34:37,249 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 70 transitions. Word has length 67 [2019-01-31 14:34:37,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-31 14:34:37,250 INFO L480 AbstractCegarLoop]: Abstraction has 70 states and 70 transitions. [2019-01-31 14:34:37,250 INFO L481 AbstractCegarLoop]: Interpolant automaton has 71 states. [2019-01-31 14:34:37,250 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 70 transitions. [2019-01-31 14:34:37,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2019-01-31 14:34:37,250 INFO L394 BasicCegarLoop]: Found error trace [2019-01-31 14:34:37,250 INFO L402 BasicCegarLoop]: trace histogram [34, 33, 1, 1] [2019-01-31 14:34:37,251 INFO L423 AbstractCegarLoop]: === Iteration 34 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-01-31 14:34:37,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-31 14:34:37,251 INFO L82 PathProgramCache]: Analyzing trace with hash 205046114, now seen corresponding path program 33 times [2019-01-31 14:34:37,251 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-01-31 14:34:37,252 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-31 14:34:37,253 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-01-31 14:34:37,253 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-31 14:34:37,253 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-01-31 14:34:37,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-31 14:34:39,111 INFO L273 TraceCheckUtils]: 0: Hoare triple {15078#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {15080#(and (or (<= main_i 0) (<= main_n 33)) (or (< 33 main_n) (<= 0 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:39,112 INFO L273 TraceCheckUtils]: 1: Hoare triple {15080#(and (or (<= main_i 0) (<= main_n 33)) (or (< 33 main_n) (<= 0 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {15081#(and (or (<= main_n 33) (<= main_i 4)) (or (< 33 main_n) (<= 4 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:39,113 INFO L273 TraceCheckUtils]: 2: Hoare triple {15081#(and (or (<= main_n 33) (<= main_i 4)) (or (< 33 main_n) (<= 4 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {15081#(and (or (<= main_n 33) (<= main_i 4)) (or (< 33 main_n) (<= 4 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:39,114 INFO L273 TraceCheckUtils]: 3: Hoare triple {15081#(and (or (<= main_n 33) (<= main_i 4)) (or (< 33 main_n) (<= 4 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {15082#(and (or (<= main_i 8) (<= main_n 33)) (= 23 (select main_a (* 4 main_n))) (or (< 33 main_n) (<= 8 main_i)))} is VALID [2019-01-31 14:34:39,115 INFO L273 TraceCheckUtils]: 4: Hoare triple {15082#(and (or (<= main_i 8) (<= main_n 33)) (= 23 (select main_a (* 4 main_n))) (or (< 33 main_n) (<= 8 main_i)))} assume i <= n * 4; {15082#(and (or (<= main_i 8) (<= main_n 33)) (= 23 (select main_a (* 4 main_n))) (or (< 33 main_n) (<= 8 main_i)))} is VALID [2019-01-31 14:34:39,116 INFO L273 TraceCheckUtils]: 5: Hoare triple {15082#(and (or (<= main_i 8) (<= main_n 33)) (= 23 (select main_a (* 4 main_n))) (or (< 33 main_n) (<= 8 main_i)))} assume a[i] != 23;i := i + 4; {15083#(and (or (< 33 main_n) (<= 12 main_i)) (or (<= main_n 33) (<= main_i 12)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:39,117 INFO L273 TraceCheckUtils]: 6: Hoare triple {15083#(and (or (< 33 main_n) (<= 12 main_i)) (or (<= main_n 33) (<= main_i 12)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {15083#(and (or (< 33 main_n) (<= 12 main_i)) (or (<= main_n 33) (<= main_i 12)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:39,118 INFO L273 TraceCheckUtils]: 7: Hoare triple {15083#(and (or (< 33 main_n) (<= 12 main_i)) (or (<= main_n 33) (<= main_i 12)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {15084#(and (or (<= main_n 33) (<= main_i 16)) (or (< 33 main_n) (<= 16 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:39,118 INFO L273 TraceCheckUtils]: 8: Hoare triple {15084#(and (or (<= main_n 33) (<= main_i 16)) (or (< 33 main_n) (<= 16 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {15084#(and (or (<= main_n 33) (<= main_i 16)) (or (< 33 main_n) (<= 16 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:39,119 INFO L273 TraceCheckUtils]: 9: Hoare triple {15084#(and (or (<= main_n 33) (<= main_i 16)) (or (< 33 main_n) (<= 16 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {15085#(and (or (< 33 main_n) (<= 20 main_i)) (or (<= main_i 20) (<= main_n 33)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:39,120 INFO L273 TraceCheckUtils]: 10: Hoare triple {15085#(and (or (< 33 main_n) (<= 20 main_i)) (or (<= main_i 20) (<= main_n 33)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {15085#(and (or (< 33 main_n) (<= 20 main_i)) (or (<= main_i 20) (<= main_n 33)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:39,121 INFO L273 TraceCheckUtils]: 11: Hoare triple {15085#(and (or (< 33 main_n) (<= 20 main_i)) (or (<= main_i 20) (<= main_n 33)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {15086#(and (or (< 33 main_n) (<= 24 main_i)) (or (<= main_i 24) (<= main_n 33)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:39,122 INFO L273 TraceCheckUtils]: 12: Hoare triple {15086#(and (or (< 33 main_n) (<= 24 main_i)) (or (<= main_i 24) (<= main_n 33)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {15086#(and (or (< 33 main_n) (<= 24 main_i)) (or (<= main_i 24) (<= main_n 33)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:39,123 INFO L273 TraceCheckUtils]: 13: Hoare triple {15086#(and (or (< 33 main_n) (<= 24 main_i)) (or (<= main_i 24) (<= main_n 33)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {15087#(and (or (<= main_n 33) (<= main_i 28)) (or (< 33 main_n) (<= 28 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:39,124 INFO L273 TraceCheckUtils]: 14: Hoare triple {15087#(and (or (<= main_n 33) (<= main_i 28)) (or (< 33 main_n) (<= 28 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {15087#(and (or (<= main_n 33) (<= main_i 28)) (or (< 33 main_n) (<= 28 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:39,125 INFO L273 TraceCheckUtils]: 15: Hoare triple {15087#(and (or (<= main_n 33) (<= main_i 28)) (or (< 33 main_n) (<= 28 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {15088#(and (or (<= 32 main_i) (< 33 main_n)) (or (<= main_i 32) (<= main_n 33)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:39,125 INFO L273 TraceCheckUtils]: 16: Hoare triple {15088#(and (or (<= 32 main_i) (< 33 main_n)) (or (<= main_i 32) (<= main_n 33)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {15088#(and (or (<= 32 main_i) (< 33 main_n)) (or (<= main_i 32) (<= main_n 33)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:39,127 INFO L273 TraceCheckUtils]: 17: Hoare triple {15088#(and (or (<= 32 main_i) (< 33 main_n)) (or (<= main_i 32) (<= main_n 33)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {15089#(and (or (<= main_i 36) (<= main_n 33)) (or (< 33 main_n) (<= 36 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:39,127 INFO L273 TraceCheckUtils]: 18: Hoare triple {15089#(and (or (<= main_i 36) (<= main_n 33)) (or (< 33 main_n) (<= 36 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {15089#(and (or (<= main_i 36) (<= main_n 33)) (or (< 33 main_n) (<= 36 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:39,128 INFO L273 TraceCheckUtils]: 19: Hoare triple {15089#(and (or (<= main_i 36) (<= main_n 33)) (or (< 33 main_n) (<= 36 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {15090#(and (or (<= main_i 40) (<= main_n 33)) (= 23 (select main_a (* 4 main_n))) (or (<= 40 main_i) (< 33 main_n)))} is VALID [2019-01-31 14:34:39,129 INFO L273 TraceCheckUtils]: 20: Hoare triple {15090#(and (or (<= main_i 40) (<= main_n 33)) (= 23 (select main_a (* 4 main_n))) (or (<= 40 main_i) (< 33 main_n)))} assume i <= n * 4; {15090#(and (or (<= main_i 40) (<= main_n 33)) (= 23 (select main_a (* 4 main_n))) (or (<= 40 main_i) (< 33 main_n)))} is VALID [2019-01-31 14:34:39,130 INFO L273 TraceCheckUtils]: 21: Hoare triple {15090#(and (or (<= main_i 40) (<= main_n 33)) (= 23 (select main_a (* 4 main_n))) (or (<= 40 main_i) (< 33 main_n)))} assume a[i] != 23;i := i + 4; {15091#(and (or (<= main_n 33) (<= main_i 44)) (or (< 33 main_n) (<= 44 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:39,131 INFO L273 TraceCheckUtils]: 22: Hoare triple {15091#(and (or (<= main_n 33) (<= main_i 44)) (or (< 33 main_n) (<= 44 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {15091#(and (or (<= main_n 33) (<= main_i 44)) (or (< 33 main_n) (<= 44 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:39,132 INFO L273 TraceCheckUtils]: 23: Hoare triple {15091#(and (or (<= main_n 33) (<= main_i 44)) (or (< 33 main_n) (<= 44 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {15092#(and (or (< 33 main_n) (<= 48 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 33) (<= main_i 48)))} is VALID [2019-01-31 14:34:39,133 INFO L273 TraceCheckUtils]: 24: Hoare triple {15092#(and (or (< 33 main_n) (<= 48 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 33) (<= main_i 48)))} assume i <= n * 4; {15092#(and (or (< 33 main_n) (<= 48 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 33) (<= main_i 48)))} is VALID [2019-01-31 14:34:39,134 INFO L273 TraceCheckUtils]: 25: Hoare triple {15092#(and (or (< 33 main_n) (<= 48 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 33) (<= main_i 48)))} assume a[i] != 23;i := i + 4; {15093#(and (or (<= main_i 52) (<= main_n 33)) (= 23 (select main_a (* 4 main_n))) (or (< 33 main_n) (<= 52 main_i)))} is VALID [2019-01-31 14:34:39,134 INFO L273 TraceCheckUtils]: 26: Hoare triple {15093#(and (or (<= main_i 52) (<= main_n 33)) (= 23 (select main_a (* 4 main_n))) (or (< 33 main_n) (<= 52 main_i)))} assume i <= n * 4; {15093#(and (or (<= main_i 52) (<= main_n 33)) (= 23 (select main_a (* 4 main_n))) (or (< 33 main_n) (<= 52 main_i)))} is VALID [2019-01-31 14:34:39,135 INFO L273 TraceCheckUtils]: 27: Hoare triple {15093#(and (or (<= main_i 52) (<= main_n 33)) (= 23 (select main_a (* 4 main_n))) (or (< 33 main_n) (<= 52 main_i)))} assume a[i] != 23;i := i + 4; {15094#(and (or (<= main_i 56) (<= main_n 33)) (or (< 33 main_n) (<= 56 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:39,136 INFO L273 TraceCheckUtils]: 28: Hoare triple {15094#(and (or (<= main_i 56) (<= main_n 33)) (or (< 33 main_n) (<= 56 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {15094#(and (or (<= main_i 56) (<= main_n 33)) (or (< 33 main_n) (<= 56 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:39,137 INFO L273 TraceCheckUtils]: 29: Hoare triple {15094#(and (or (<= main_i 56) (<= main_n 33)) (or (< 33 main_n) (<= 56 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {15095#(and (or (<= main_i 60) (<= main_n 33)) (or (< 33 main_n) (<= 60 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:39,138 INFO L273 TraceCheckUtils]: 30: Hoare triple {15095#(and (or (<= main_i 60) (<= main_n 33)) (or (< 33 main_n) (<= 60 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {15095#(and (or (<= main_i 60) (<= main_n 33)) (or (< 33 main_n) (<= 60 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:39,139 INFO L273 TraceCheckUtils]: 31: Hoare triple {15095#(and (or (<= main_i 60) (<= main_n 33)) (or (< 33 main_n) (<= 60 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {15096#(and (or (<= main_i 64) (<= main_n 33)) (or (< 33 main_n) (<= 64 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:39,140 INFO L273 TraceCheckUtils]: 32: Hoare triple {15096#(and (or (<= main_i 64) (<= main_n 33)) (or (< 33 main_n) (<= 64 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {15096#(and (or (<= main_i 64) (<= main_n 33)) (or (< 33 main_n) (<= 64 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:39,141 INFO L273 TraceCheckUtils]: 33: Hoare triple {15096#(and (or (<= main_i 64) (<= main_n 33)) (or (< 33 main_n) (<= 64 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {15097#(and (or (< 33 main_n) (<= 68 main_i)) (or (<= main_n 33) (<= main_i 68)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:39,142 INFO L273 TraceCheckUtils]: 34: Hoare triple {15097#(and (or (< 33 main_n) (<= 68 main_i)) (or (<= main_n 33) (<= main_i 68)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {15097#(and (or (< 33 main_n) (<= 68 main_i)) (or (<= main_n 33) (<= main_i 68)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:39,143 INFO L273 TraceCheckUtils]: 35: Hoare triple {15097#(and (or (< 33 main_n) (<= 68 main_i)) (or (<= main_n 33) (<= main_i 68)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {15098#(and (or (<= main_i 72) (<= main_n 33)) (or (<= 72 main_i) (< 33 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:39,143 INFO L273 TraceCheckUtils]: 36: Hoare triple {15098#(and (or (<= main_i 72) (<= main_n 33)) (or (<= 72 main_i) (< 33 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {15098#(and (or (<= main_i 72) (<= main_n 33)) (or (<= 72 main_i) (< 33 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:39,144 INFO L273 TraceCheckUtils]: 37: Hoare triple {15098#(and (or (<= main_i 72) (<= main_n 33)) (or (<= 72 main_i) (< 33 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {15099#(and (or (<= 76 main_i) (< 33 main_n)) (or (<= main_i 76) (<= main_n 33)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:39,145 INFO L273 TraceCheckUtils]: 38: Hoare triple {15099#(and (or (<= 76 main_i) (< 33 main_n)) (or (<= main_i 76) (<= main_n 33)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {15099#(and (or (<= 76 main_i) (< 33 main_n)) (or (<= main_i 76) (<= main_n 33)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:39,146 INFO L273 TraceCheckUtils]: 39: Hoare triple {15099#(and (or (<= 76 main_i) (< 33 main_n)) (or (<= main_i 76) (<= main_n 33)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {15100#(and (or (<= main_n 33) (<= main_i 80)) (or (< 33 main_n) (<= 80 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:39,147 INFO L273 TraceCheckUtils]: 40: Hoare triple {15100#(and (or (<= main_n 33) (<= main_i 80)) (or (< 33 main_n) (<= 80 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {15100#(and (or (<= main_n 33) (<= main_i 80)) (or (< 33 main_n) (<= 80 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:39,148 INFO L273 TraceCheckUtils]: 41: Hoare triple {15100#(and (or (<= main_n 33) (<= main_i 80)) (or (< 33 main_n) (<= 80 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {15101#(and (or (< 33 main_n) (<= 84 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 84) (<= main_n 33)))} is VALID [2019-01-31 14:34:39,149 INFO L273 TraceCheckUtils]: 42: Hoare triple {15101#(and (or (< 33 main_n) (<= 84 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 84) (<= main_n 33)))} assume i <= n * 4; {15101#(and (or (< 33 main_n) (<= 84 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 84) (<= main_n 33)))} is VALID [2019-01-31 14:34:39,150 INFO L273 TraceCheckUtils]: 43: Hoare triple {15101#(and (or (< 33 main_n) (<= 84 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 84) (<= main_n 33)))} assume a[i] != 23;i := i + 4; {15102#(and (or (< 33 main_n) (<= 88 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 88) (<= main_n 33)))} is VALID [2019-01-31 14:34:39,150 INFO L273 TraceCheckUtils]: 44: Hoare triple {15102#(and (or (< 33 main_n) (<= 88 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 88) (<= main_n 33)))} assume i <= n * 4; {15102#(and (or (< 33 main_n) (<= 88 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 88) (<= main_n 33)))} is VALID [2019-01-31 14:34:39,151 INFO L273 TraceCheckUtils]: 45: Hoare triple {15102#(and (or (< 33 main_n) (<= 88 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 88) (<= main_n 33)))} assume a[i] != 23;i := i + 4; {15103#(and (or (< 33 main_n) (<= 92 main_i)) (or (<= main_i 92) (<= main_n 33)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:39,152 INFO L273 TraceCheckUtils]: 46: Hoare triple {15103#(and (or (< 33 main_n) (<= 92 main_i)) (or (<= main_i 92) (<= main_n 33)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {15103#(and (or (< 33 main_n) (<= 92 main_i)) (or (<= main_i 92) (<= main_n 33)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:39,153 INFO L273 TraceCheckUtils]: 47: Hoare triple {15103#(and (or (< 33 main_n) (<= 92 main_i)) (or (<= main_i 92) (<= main_n 33)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {15104#(and (or (< 33 main_n) (<= 96 main_i)) (or (<= main_i 96) (<= main_n 33)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:39,154 INFO L273 TraceCheckUtils]: 48: Hoare triple {15104#(and (or (< 33 main_n) (<= 96 main_i)) (or (<= main_i 96) (<= main_n 33)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {15104#(and (or (< 33 main_n) (<= 96 main_i)) (or (<= main_i 96) (<= main_n 33)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:39,155 INFO L273 TraceCheckUtils]: 49: Hoare triple {15104#(and (or (< 33 main_n) (<= 96 main_i)) (or (<= main_i 96) (<= main_n 33)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {15105#(and (or (< 33 main_n) (<= 100 main_i)) (or (<= main_i 100) (<= main_n 33)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:39,156 INFO L273 TraceCheckUtils]: 50: Hoare triple {15105#(and (or (< 33 main_n) (<= 100 main_i)) (or (<= main_i 100) (<= main_n 33)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {15105#(and (or (< 33 main_n) (<= 100 main_i)) (or (<= main_i 100) (<= main_n 33)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:39,157 INFO L273 TraceCheckUtils]: 51: Hoare triple {15105#(and (or (< 33 main_n) (<= 100 main_i)) (or (<= main_i 100) (<= main_n 33)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {15106#(and (or (<= main_i 104) (<= main_n 33)) (or (< 33 main_n) (<= 104 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:39,157 INFO L273 TraceCheckUtils]: 52: Hoare triple {15106#(and (or (<= main_i 104) (<= main_n 33)) (or (< 33 main_n) (<= 104 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {15106#(and (or (<= main_i 104) (<= main_n 33)) (or (< 33 main_n) (<= 104 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:39,158 INFO L273 TraceCheckUtils]: 53: Hoare triple {15106#(and (or (<= main_i 104) (<= main_n 33)) (or (< 33 main_n) (<= 104 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {15107#(and (or (<= main_n 33) (<= main_i 108)) (or (< 33 main_n) (<= 108 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:39,159 INFO L273 TraceCheckUtils]: 54: Hoare triple {15107#(and (or (<= main_n 33) (<= main_i 108)) (or (< 33 main_n) (<= 108 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {15107#(and (or (<= main_n 33) (<= main_i 108)) (or (< 33 main_n) (<= 108 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:39,160 INFO L273 TraceCheckUtils]: 55: Hoare triple {15107#(and (or (<= main_n 33) (<= main_i 108)) (or (< 33 main_n) (<= 108 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {15108#(and (or (<= main_n 33) (<= main_i 112)) (= 23 (select main_a (* 4 main_n))) (or (< 33 main_n) (<= 112 main_i)))} is VALID [2019-01-31 14:34:39,161 INFO L273 TraceCheckUtils]: 56: Hoare triple {15108#(and (or (<= main_n 33) (<= main_i 112)) (= 23 (select main_a (* 4 main_n))) (or (< 33 main_n) (<= 112 main_i)))} assume i <= n * 4; {15108#(and (or (<= main_n 33) (<= main_i 112)) (= 23 (select main_a (* 4 main_n))) (or (< 33 main_n) (<= 112 main_i)))} is VALID [2019-01-31 14:34:39,162 INFO L273 TraceCheckUtils]: 57: Hoare triple {15108#(and (or (<= main_n 33) (<= main_i 112)) (= 23 (select main_a (* 4 main_n))) (or (< 33 main_n) (<= 112 main_i)))} assume a[i] != 23;i := i + 4; {15109#(and (or (<= main_i 116) (<= main_n 33)) (or (<= 116 main_i) (< 33 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:39,163 INFO L273 TraceCheckUtils]: 58: Hoare triple {15109#(and (or (<= main_i 116) (<= main_n 33)) (or (<= 116 main_i) (< 33 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {15109#(and (or (<= main_i 116) (<= main_n 33)) (or (<= 116 main_i) (< 33 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:39,164 INFO L273 TraceCheckUtils]: 59: Hoare triple {15109#(and (or (<= main_i 116) (<= main_n 33)) (or (<= 116 main_i) (< 33 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {15110#(and (or (< 33 main_n) (<= 120 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 120) (<= main_n 33)))} is VALID [2019-01-31 14:34:39,165 INFO L273 TraceCheckUtils]: 60: Hoare triple {15110#(and (or (< 33 main_n) (<= 120 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 120) (<= main_n 33)))} assume i <= n * 4; {15110#(and (or (< 33 main_n) (<= 120 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 120) (<= main_n 33)))} is VALID [2019-01-31 14:34:39,166 INFO L273 TraceCheckUtils]: 61: Hoare triple {15110#(and (or (< 33 main_n) (<= 120 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 120) (<= main_n 33)))} assume a[i] != 23;i := i + 4; {15111#(and (or (< 33 main_n) (<= 124 main_i)) (or (<= main_i 124) (<= main_n 33)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:39,166 INFO L273 TraceCheckUtils]: 62: Hoare triple {15111#(and (or (< 33 main_n) (<= 124 main_i)) (or (<= main_i 124) (<= main_n 33)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {15111#(and (or (< 33 main_n) (<= 124 main_i)) (or (<= main_i 124) (<= main_n 33)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:39,167 INFO L273 TraceCheckUtils]: 63: Hoare triple {15111#(and (or (< 33 main_n) (<= 124 main_i)) (or (<= main_i 124) (<= main_n 33)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {15112#(and (or (<= main_i 128) (<= main_n 33)) (= 23 (select main_a (* 4 main_n))) (or (< 33 main_n) (<= 128 main_i)))} is VALID [2019-01-31 14:34:39,168 INFO L273 TraceCheckUtils]: 64: Hoare triple {15112#(and (or (<= main_i 128) (<= main_n 33)) (= 23 (select main_a (* 4 main_n))) (or (< 33 main_n) (<= 128 main_i)))} assume i <= n * 4; {15112#(and (or (<= main_i 128) (<= main_n 33)) (= 23 (select main_a (* 4 main_n))) (or (< 33 main_n) (<= 128 main_i)))} is VALID [2019-01-31 14:34:39,169 INFO L273 TraceCheckUtils]: 65: Hoare triple {15112#(and (or (<= main_i 128) (<= main_n 33)) (= 23 (select main_a (* 4 main_n))) (or (< 33 main_n) (<= 128 main_i)))} assume a[i] != 23;i := i + 4; {15113#(and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (or (= (* 4 main_n) main_i) (and (or (< 33 main_n) (<= (* 4 main_n) main_i)) (or (<= main_i 132) (<= main_n 33)))))} is VALID [2019-01-31 14:34:39,170 INFO L273 TraceCheckUtils]: 66: Hoare triple {15113#(and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (or (= (* 4 main_n) main_i) (and (or (< 33 main_n) (<= (* 4 main_n) main_i)) (or (<= main_i 132) (<= main_n 33)))))} assume i <= n * 4; {15114#(and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (or (= (* 4 main_n) main_i) (and (<= main_i 132) (< 33 main_n))))} is VALID [2019-01-31 14:34:39,171 INFO L273 TraceCheckUtils]: 67: Hoare triple {15114#(and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (or (= (* 4 main_n) main_i) (and (<= main_i 132) (< 33 main_n))))} assume a[i] != 23;i := i + 4; {15115#(and (<= main_i 136) (<= 34 main_n))} is VALID [2019-01-31 14:34:39,172 INFO L273 TraceCheckUtils]: 68: Hoare triple {15115#(and (<= main_i 136) (<= 34 main_n))} assume !(i <= n * 4); {15079#false} is VALID [2019-01-31 14:34:39,194 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 14:34:39,195 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-31 14:34:39,195 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-01-31 14:34:39,195 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-01-31 14:34:39,195 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-01-31 14:34:39,195 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-31 14:34:39,195 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 14:34:39,205 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2019-01-31 14:34:39,205 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder TERMS_WITH_SMALL_CONSTANTS_FIRST (IT: FPandBP) [2019-01-31 14:34:39,237 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-01-31 14:34:39,237 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-01-31 14:34:39,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-31 14:34:39,252 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-31 14:34:39,261 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 14:34:39,265 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-01-31 14:34:39,271 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-31 14:34:39,271 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2019-01-31 14:34:39,273 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-01-31 14:34:39,273 WARN L398 uantifierElimination]: Input elimination task: ∃ [v_main_a_37]. (and (= (store v_main_a_37 (* 4 main_n) 23) main_a) (= main_i 0)) [2019-01-31 14:34:39,273 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2019-01-31 14:34:41,475 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2019-01-31 14:34:41,477 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-01-31 14:34:41,483 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-31 14:34:41,483 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2019-01-31 14:34:41,485 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-01-31 14:34:41,485 WARN L398 uantifierElimination]: Input elimination task: ∃ [main_a]. (let ((.cse0 (* 4 main_n))) (and (<= main_i 136) (<= 132 .cse0) (not (= (select main_a 132) 23)) (= 23 (select main_a .cse0)))) [2019-01-31 14:34:41,486 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (let ((.cse0 (* 4 main_n))) (and (<= main_i 136) (<= 132 .cse0) (not (= 132 .cse0)))) [2019-01-31 14:34:41,526 INFO L273 TraceCheckUtils]: 0: Hoare triple {15078#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {15119#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:41,527 INFO L273 TraceCheckUtils]: 1: Hoare triple {15119#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {15123#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2019-01-31 14:34:41,527 INFO L273 TraceCheckUtils]: 2: Hoare triple {15123#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume i <= n * 4; {15123#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2019-01-31 14:34:41,528 INFO L273 TraceCheckUtils]: 3: Hoare triple {15123#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume a[i] != 23;i := i + 4; {15130#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:41,528 INFO L273 TraceCheckUtils]: 4: Hoare triple {15130#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {15130#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:41,529 INFO L273 TraceCheckUtils]: 5: Hoare triple {15130#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {15137#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2019-01-31 14:34:41,530 INFO L273 TraceCheckUtils]: 6: Hoare triple {15137#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume i <= n * 4; {15137#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2019-01-31 14:34:41,531 INFO L273 TraceCheckUtils]: 7: Hoare triple {15137#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume a[i] != 23;i := i + 4; {15144#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:41,531 INFO L273 TraceCheckUtils]: 8: Hoare triple {15144#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {15144#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:41,532 INFO L273 TraceCheckUtils]: 9: Hoare triple {15144#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {15151#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:41,533 INFO L273 TraceCheckUtils]: 10: Hoare triple {15151#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {15151#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:41,533 INFO L273 TraceCheckUtils]: 11: Hoare triple {15151#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {15158#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:41,534 INFO L273 TraceCheckUtils]: 12: Hoare triple {15158#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {15158#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:41,535 INFO L273 TraceCheckUtils]: 13: Hoare triple {15158#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {15165#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:41,535 INFO L273 TraceCheckUtils]: 14: Hoare triple {15165#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {15165#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:41,536 INFO L273 TraceCheckUtils]: 15: Hoare triple {15165#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {15172#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:41,537 INFO L273 TraceCheckUtils]: 16: Hoare triple {15172#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {15172#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:41,537 INFO L273 TraceCheckUtils]: 17: Hoare triple {15172#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {15179#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:41,538 INFO L273 TraceCheckUtils]: 18: Hoare triple {15179#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {15179#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:41,539 INFO L273 TraceCheckUtils]: 19: Hoare triple {15179#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {15186#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:41,539 INFO L273 TraceCheckUtils]: 20: Hoare triple {15186#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {15186#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:41,540 INFO L273 TraceCheckUtils]: 21: Hoare triple {15186#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {15193#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:41,541 INFO L273 TraceCheckUtils]: 22: Hoare triple {15193#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {15193#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:41,541 INFO L273 TraceCheckUtils]: 23: Hoare triple {15193#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {15200#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:41,542 INFO L273 TraceCheckUtils]: 24: Hoare triple {15200#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {15200#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:41,543 INFO L273 TraceCheckUtils]: 25: Hoare triple {15200#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {15207#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:41,543 INFO L273 TraceCheckUtils]: 26: Hoare triple {15207#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {15207#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:41,544 INFO L273 TraceCheckUtils]: 27: Hoare triple {15207#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {15214#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:41,545 INFO L273 TraceCheckUtils]: 28: Hoare triple {15214#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {15214#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:41,545 INFO L273 TraceCheckUtils]: 29: Hoare triple {15214#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {15221#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:41,546 INFO L273 TraceCheckUtils]: 30: Hoare triple {15221#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {15221#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:41,547 INFO L273 TraceCheckUtils]: 31: Hoare triple {15221#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {15228#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:41,547 INFO L273 TraceCheckUtils]: 32: Hoare triple {15228#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {15228#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:41,548 INFO L273 TraceCheckUtils]: 33: Hoare triple {15228#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {15235#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:41,549 INFO L273 TraceCheckUtils]: 34: Hoare triple {15235#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {15235#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:41,549 INFO L273 TraceCheckUtils]: 35: Hoare triple {15235#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {15242#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:41,550 INFO L273 TraceCheckUtils]: 36: Hoare triple {15242#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {15242#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:41,551 INFO L273 TraceCheckUtils]: 37: Hoare triple {15242#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {15249#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:41,551 INFO L273 TraceCheckUtils]: 38: Hoare triple {15249#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {15249#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:41,552 INFO L273 TraceCheckUtils]: 39: Hoare triple {15249#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {15256#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} is VALID [2019-01-31 14:34:41,553 INFO L273 TraceCheckUtils]: 40: Hoare triple {15256#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} assume i <= n * 4; {15256#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} is VALID [2019-01-31 14:34:41,553 INFO L273 TraceCheckUtils]: 41: Hoare triple {15256#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} assume a[i] != 23;i := i + 4; {15263#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:41,554 INFO L273 TraceCheckUtils]: 42: Hoare triple {15263#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {15263#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:41,555 INFO L273 TraceCheckUtils]: 43: Hoare triple {15263#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {15270#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:41,556 INFO L273 TraceCheckUtils]: 44: Hoare triple {15270#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {15270#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:41,556 INFO L273 TraceCheckUtils]: 45: Hoare triple {15270#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {15277#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:41,557 INFO L273 TraceCheckUtils]: 46: Hoare triple {15277#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {15277#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:41,558 INFO L273 TraceCheckUtils]: 47: Hoare triple {15277#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {15284#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:41,558 INFO L273 TraceCheckUtils]: 48: Hoare triple {15284#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {15284#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:41,559 INFO L273 TraceCheckUtils]: 49: Hoare triple {15284#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {15291#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:41,560 INFO L273 TraceCheckUtils]: 50: Hoare triple {15291#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {15291#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:41,560 INFO L273 TraceCheckUtils]: 51: Hoare triple {15291#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {15298#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:41,561 INFO L273 TraceCheckUtils]: 52: Hoare triple {15298#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {15298#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:41,562 INFO L273 TraceCheckUtils]: 53: Hoare triple {15298#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {15305#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:41,562 INFO L273 TraceCheckUtils]: 54: Hoare triple {15305#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {15305#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:41,563 INFO L273 TraceCheckUtils]: 55: Hoare triple {15305#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {15312#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:41,564 INFO L273 TraceCheckUtils]: 56: Hoare triple {15312#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {15312#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:41,565 INFO L273 TraceCheckUtils]: 57: Hoare triple {15312#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {15319#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:41,565 INFO L273 TraceCheckUtils]: 58: Hoare triple {15319#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {15319#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:41,566 INFO L273 TraceCheckUtils]: 59: Hoare triple {15319#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {15326#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:41,567 INFO L273 TraceCheckUtils]: 60: Hoare triple {15326#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {15326#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:41,567 INFO L273 TraceCheckUtils]: 61: Hoare triple {15326#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {15333#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:41,568 INFO L273 TraceCheckUtils]: 62: Hoare triple {15333#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {15333#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:41,569 INFO L273 TraceCheckUtils]: 63: Hoare triple {15333#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {15340#(and (= main_i 128) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:41,570 INFO L273 TraceCheckUtils]: 64: Hoare triple {15340#(and (= main_i 128) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {15340#(and (= main_i 128) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:41,570 INFO L273 TraceCheckUtils]: 65: Hoare triple {15340#(and (= main_i 128) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {15347#(and (= main_i 132) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:41,571 INFO L273 TraceCheckUtils]: 66: Hoare triple {15347#(and (= main_i 132) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {15351#(and (<= main_i (* 4 main_n)) (= main_i 132) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:41,572 INFO L273 TraceCheckUtils]: 67: Hoare triple {15351#(and (<= main_i (* 4 main_n)) (= main_i 132) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {15115#(and (<= main_i 136) (<= 34 main_n))} is VALID [2019-01-31 14:34:41,572 INFO L273 TraceCheckUtils]: 68: Hoare triple {15115#(and (<= main_i 136) (<= 34 main_n))} assume !(i <= n * 4); {15079#false} is VALID [2019-01-31 14:34:41,585 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 14:34:41,585 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2019-01-31 14:34:44,984 INFO L273 TraceCheckUtils]: 68: Hoare triple {15358#(<= main_i (* 4 main_n))} assume !(i <= n * 4); {15079#false} is VALID [2019-01-31 14:34:44,985 INFO L273 TraceCheckUtils]: 67: Hoare triple {15362#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} assume a[i] != 23;i := i + 4; {15358#(<= main_i (* 4 main_n))} is VALID [2019-01-31 14:34:44,985 INFO L273 TraceCheckUtils]: 66: Hoare triple {15366#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} assume i <= n * 4; {15362#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} is VALID [2019-01-31 14:34:44,986 INFO L273 TraceCheckUtils]: 65: Hoare triple {15370#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume a[i] != 23;i := i + 4; {15366#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} is VALID [2019-01-31 14:34:44,987 INFO L273 TraceCheckUtils]: 64: Hoare triple {15370#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume i <= n * 4; {15370#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2019-01-31 14:34:44,988 INFO L273 TraceCheckUtils]: 63: Hoare triple {15377#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume a[i] != 23;i := i + 4; {15370#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2019-01-31 14:34:44,989 INFO L273 TraceCheckUtils]: 62: Hoare triple {15377#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume i <= n * 4; {15377#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2019-01-31 14:34:44,990 INFO L273 TraceCheckUtils]: 61: Hoare triple {15384#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume a[i] != 23;i := i + 4; {15377#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2019-01-31 14:34:44,990 INFO L273 TraceCheckUtils]: 60: Hoare triple {15384#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume i <= n * 4; {15384#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2019-01-31 14:34:44,991 INFO L273 TraceCheckUtils]: 59: Hoare triple {15391#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume a[i] != 23;i := i + 4; {15384#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2019-01-31 14:34:44,992 INFO L273 TraceCheckUtils]: 58: Hoare triple {15391#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume i <= n * 4; {15391#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2019-01-31 14:34:44,993 INFO L273 TraceCheckUtils]: 57: Hoare triple {15398#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {15391#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2019-01-31 14:34:44,993 INFO L273 TraceCheckUtils]: 56: Hoare triple {15398#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume i <= n * 4; {15398#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2019-01-31 14:34:44,994 INFO L273 TraceCheckUtils]: 55: Hoare triple {15405#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume a[i] != 23;i := i + 4; {15398#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2019-01-31 14:34:44,995 INFO L273 TraceCheckUtils]: 54: Hoare triple {15405#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume i <= n * 4; {15405#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2019-01-31 14:34:44,996 INFO L273 TraceCheckUtils]: 53: Hoare triple {15412#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {15405#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2019-01-31 14:34:44,997 INFO L273 TraceCheckUtils]: 52: Hoare triple {15412#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume i <= n * 4; {15412#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2019-01-31 14:34:44,998 INFO L273 TraceCheckUtils]: 51: Hoare triple {15419#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {15412#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2019-01-31 14:34:44,998 INFO L273 TraceCheckUtils]: 50: Hoare triple {15419#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume i <= n * 4; {15419#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2019-01-31 14:34:45,003 INFO L273 TraceCheckUtils]: 49: Hoare triple {15426#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {15419#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2019-01-31 14:34:45,003 INFO L273 TraceCheckUtils]: 48: Hoare triple {15426#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume i <= n * 4; {15426#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2019-01-31 14:34:45,004 INFO L273 TraceCheckUtils]: 47: Hoare triple {15433#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} assume a[i] != 23;i := i + 4; {15426#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2019-01-31 14:34:45,004 INFO L273 TraceCheckUtils]: 46: Hoare triple {15433#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} assume i <= n * 4; {15433#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} is VALID [2019-01-31 14:34:45,005 INFO L273 TraceCheckUtils]: 45: Hoare triple {15440#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {15433#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} is VALID [2019-01-31 14:34:45,006 INFO L273 TraceCheckUtils]: 44: Hoare triple {15440#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} assume i <= n * 4; {15440#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} is VALID [2019-01-31 14:34:45,006 INFO L273 TraceCheckUtils]: 43: Hoare triple {15447#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {15440#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} is VALID [2019-01-31 14:34:45,007 INFO L273 TraceCheckUtils]: 42: Hoare triple {15447#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} assume i <= n * 4; {15447#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} is VALID [2019-01-31 14:34:45,008 INFO L273 TraceCheckUtils]: 41: Hoare triple {15454#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} assume a[i] != 23;i := i + 4; {15447#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} is VALID [2019-01-31 14:34:45,008 INFO L273 TraceCheckUtils]: 40: Hoare triple {15454#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} assume i <= n * 4; {15454#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} is VALID [2019-01-31 14:34:45,010 INFO L273 TraceCheckUtils]: 39: Hoare triple {15461#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {15454#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} is VALID [2019-01-31 14:34:45,010 INFO L273 TraceCheckUtils]: 38: Hoare triple {15461#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} assume i <= n * 4; {15461#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} is VALID [2019-01-31 14:34:45,011 INFO L273 TraceCheckUtils]: 37: Hoare triple {15468#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} assume a[i] != 23;i := i + 4; {15461#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} is VALID [2019-01-31 14:34:45,012 INFO L273 TraceCheckUtils]: 36: Hoare triple {15468#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} assume i <= n * 4; {15468#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} is VALID [2019-01-31 14:34:45,013 INFO L273 TraceCheckUtils]: 35: Hoare triple {15475#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} assume a[i] != 23;i := i + 4; {15468#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} is VALID [2019-01-31 14:34:45,013 INFO L273 TraceCheckUtils]: 34: Hoare triple {15475#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} assume i <= n * 4; {15475#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} is VALID [2019-01-31 14:34:45,014 INFO L273 TraceCheckUtils]: 33: Hoare triple {15482#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} assume a[i] != 23;i := i + 4; {15475#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} is VALID [2019-01-31 14:34:45,015 INFO L273 TraceCheckUtils]: 32: Hoare triple {15482#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} assume i <= n * 4; {15482#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} is VALID [2019-01-31 14:34:45,016 INFO L273 TraceCheckUtils]: 31: Hoare triple {15489#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} assume a[i] != 23;i := i + 4; {15482#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} is VALID [2019-01-31 14:34:45,017 INFO L273 TraceCheckUtils]: 30: Hoare triple {15489#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} assume i <= n * 4; {15489#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} is VALID [2019-01-31 14:34:45,018 INFO L273 TraceCheckUtils]: 29: Hoare triple {15496#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} assume a[i] != 23;i := i + 4; {15489#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} is VALID [2019-01-31 14:34:45,018 INFO L273 TraceCheckUtils]: 28: Hoare triple {15496#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} assume i <= n * 4; {15496#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} is VALID [2019-01-31 14:34:45,019 INFO L273 TraceCheckUtils]: 27: Hoare triple {15503#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} assume a[i] != 23;i := i + 4; {15496#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} is VALID [2019-01-31 14:34:45,020 INFO L273 TraceCheckUtils]: 26: Hoare triple {15503#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} assume i <= n * 4; {15503#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} is VALID [2019-01-31 14:34:45,021 INFO L273 TraceCheckUtils]: 25: Hoare triple {15510#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {15503#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} is VALID [2019-01-31 14:34:45,022 INFO L273 TraceCheckUtils]: 24: Hoare triple {15510#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} assume i <= n * 4; {15510#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} is VALID [2019-01-31 14:34:45,023 INFO L273 TraceCheckUtils]: 23: Hoare triple {15517#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {15510#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} is VALID [2019-01-31 14:34:45,023 INFO L273 TraceCheckUtils]: 22: Hoare triple {15517#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} assume i <= n * 4; {15517#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} is VALID [2019-01-31 14:34:45,025 INFO L273 TraceCheckUtils]: 21: Hoare triple {15524#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {15517#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} is VALID [2019-01-31 14:34:45,025 INFO L273 TraceCheckUtils]: 20: Hoare triple {15524#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} assume i <= n * 4; {15524#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} is VALID [2019-01-31 14:34:45,026 INFO L273 TraceCheckUtils]: 19: Hoare triple {15531#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} assume a[i] != 23;i := i + 4; {15524#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} is VALID [2019-01-31 14:34:45,027 INFO L273 TraceCheckUtils]: 18: Hoare triple {15531#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} assume i <= n * 4; {15531#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} is VALID [2019-01-31 14:34:45,028 INFO L273 TraceCheckUtils]: 17: Hoare triple {15538#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {15531#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} is VALID [2019-01-31 14:34:45,028 INFO L273 TraceCheckUtils]: 16: Hoare triple {15538#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} assume i <= n * 4; {15538#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} is VALID [2019-01-31 14:34:45,029 INFO L273 TraceCheckUtils]: 15: Hoare triple {15545#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} assume a[i] != 23;i := i + 4; {15538#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} is VALID [2019-01-31 14:34:45,030 INFO L273 TraceCheckUtils]: 14: Hoare triple {15545#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} assume i <= n * 4; {15545#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} is VALID [2019-01-31 14:34:45,031 INFO L273 TraceCheckUtils]: 13: Hoare triple {15552#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} assume a[i] != 23;i := i + 4; {15545#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} is VALID [2019-01-31 14:34:45,032 INFO L273 TraceCheckUtils]: 12: Hoare triple {15552#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} assume i <= n * 4; {15552#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} is VALID [2019-01-31 14:34:45,033 INFO L273 TraceCheckUtils]: 11: Hoare triple {15559#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} assume a[i] != 23;i := i + 4; {15552#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} is VALID [2019-01-31 14:34:45,033 INFO L273 TraceCheckUtils]: 10: Hoare triple {15559#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} assume i <= n * 4; {15559#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} is VALID [2019-01-31 14:34:45,034 INFO L273 TraceCheckUtils]: 9: Hoare triple {15566#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {15559#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} is VALID [2019-01-31 14:34:45,035 INFO L273 TraceCheckUtils]: 8: Hoare triple {15566#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} assume i <= n * 4; {15566#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} is VALID [2019-01-31 14:34:45,036 INFO L273 TraceCheckUtils]: 7: Hoare triple {15573#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {15566#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} is VALID [2019-01-31 14:34:45,036 INFO L273 TraceCheckUtils]: 6: Hoare triple {15573#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} assume i <= n * 4; {15573#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} is VALID [2019-01-31 14:34:45,037 INFO L273 TraceCheckUtils]: 5: Hoare triple {15580#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} assume a[i] != 23;i := i + 4; {15573#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} is VALID [2019-01-31 14:34:45,038 INFO L273 TraceCheckUtils]: 4: Hoare triple {15580#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} assume i <= n * 4; {15580#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} is VALID [2019-01-31 14:34:45,039 INFO L273 TraceCheckUtils]: 3: Hoare triple {15587#(or (< (* 4 main_n) (+ main_i 128)) (= (select main_a (+ main_i 128)) 23) (< (+ main_i 131) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {15580#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} is VALID [2019-01-31 14:34:45,039 INFO L273 TraceCheckUtils]: 2: Hoare triple {15587#(or (< (* 4 main_n) (+ main_i 128)) (= (select main_a (+ main_i 128)) 23) (< (+ main_i 131) (* 4 main_n)))} assume i <= n * 4; {15587#(or (< (* 4 main_n) (+ main_i 128)) (= (select main_a (+ main_i 128)) 23) (< (+ main_i 131) (* 4 main_n)))} is VALID [2019-01-31 14:34:45,041 INFO L273 TraceCheckUtils]: 1: Hoare triple {15594#(or (< (* 4 main_n) (+ main_i 132)) (< (+ main_i 135) (* 4 main_n)) (= (select main_a (+ main_i 132)) 23))} assume a[i] != 23;i := i + 4; {15587#(or (< (* 4 main_n) (+ main_i 128)) (= (select main_a (+ main_i 128)) 23) (< (+ main_i 131) (* 4 main_n)))} is VALID [2019-01-31 14:34:45,042 INFO L273 TraceCheckUtils]: 0: Hoare triple {15078#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {15594#(or (< (* 4 main_n) (+ main_i 132)) (< (+ main_i 135) (* 4 main_n)) (= (select main_a (+ main_i 132)) 23))} is VALID [2019-01-31 14:34:45,061 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 14:34:45,080 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-01-31 14:34:45,080 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [36, 36, 36] total 107 [2019-01-31 14:34:45,080 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-01-31 14:34:45,081 INFO L78 Accepts]: Start accepts. Automaton has 73 states. Word has length 69 [2019-01-31 14:34:45,081 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-01-31 14:34:45,081 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 73 states. [2019-01-31 14:34:45,250 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 137 edges. 137 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-01-31 14:34:45,250 INFO L459 AbstractCegarLoop]: Interpolant automaton has 73 states [2019-01-31 14:34:45,250 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 73 interpolants. [2019-01-31 14:34:45,251 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1484, Invalid=10288, Unknown=0, NotChecked=0, Total=11772 [2019-01-31 14:34:45,251 INFO L87 Difference]: Start difference. First operand 70 states and 70 transitions. Second operand 73 states. [2019-01-31 14:34:53,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 14:34:53,978 INFO L93 Difference]: Finished difference Result 74 states and 74 transitions. [2019-01-31 14:34:53,979 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2019-01-31 14:34:53,979 INFO L78 Accepts]: Start accepts. Automaton has 73 states. Word has length 69 [2019-01-31 14:34:53,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-31 14:34:53,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73 states. [2019-01-31 14:34:53,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 74 transitions. [2019-01-31 14:34:53,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73 states. [2019-01-31 14:34:53,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 74 transitions. [2019-01-31 14:34:53,981 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 38 states and 74 transitions. [2019-01-31 14:34:54,062 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 14:34:54,063 INFO L225 Difference]: With dead ends: 74 [2019-01-31 14:34:54,063 INFO L226 Difference]: Without dead ends: 73 [2019-01-31 14:34:54,064 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 64 SyntacticMatches, 1 SemanticMatches, 107 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2660 ImplicationChecksByTransitivity, 6.8s TimeCoverageRelationStatistics Valid=1484, Invalid=10288, Unknown=0, NotChecked=0, Total=11772 [2019-01-31 14:34:54,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2019-01-31 14:34:54,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 72. [2019-01-31 14:34:54,128 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-01-31 14:34:54,129 INFO L82 GeneralOperation]: Start isEquivalent. First operand 73 states. Second operand 72 states. [2019-01-31 14:34:54,129 INFO L74 IsIncluded]: Start isIncluded. First operand 73 states. Second operand 72 states. [2019-01-31 14:34:54,129 INFO L87 Difference]: Start difference. First operand 73 states. Second operand 72 states. [2019-01-31 14:34:54,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 14:34:54,130 INFO L93 Difference]: Finished difference Result 73 states and 73 transitions. [2019-01-31 14:34:54,130 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 73 transitions. [2019-01-31 14:34:54,131 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-31 14:34:54,131 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-01-31 14:34:54,131 INFO L74 IsIncluded]: Start isIncluded. First operand 72 states. Second operand 73 states. [2019-01-31 14:34:54,131 INFO L87 Difference]: Start difference. First operand 72 states. Second operand 73 states. [2019-01-31 14:34:54,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 14:34:54,133 INFO L93 Difference]: Finished difference Result 73 states and 73 transitions. [2019-01-31 14:34:54,133 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 73 transitions. [2019-01-31 14:34:54,133 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-31 14:34:54,133 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-01-31 14:34:54,134 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-01-31 14:34:54,134 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-01-31 14:34:54,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2019-01-31 14:34:54,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 72 transitions. [2019-01-31 14:34:54,135 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 72 transitions. Word has length 69 [2019-01-31 14:34:54,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-31 14:34:54,135 INFO L480 AbstractCegarLoop]: Abstraction has 72 states and 72 transitions. [2019-01-31 14:34:54,135 INFO L481 AbstractCegarLoop]: Interpolant automaton has 73 states. [2019-01-31 14:34:54,135 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 72 transitions. [2019-01-31 14:34:54,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2019-01-31 14:34:54,136 INFO L394 BasicCegarLoop]: Found error trace [2019-01-31 14:34:54,136 INFO L402 BasicCegarLoop]: trace histogram [35, 34, 1, 1] [2019-01-31 14:34:54,136 INFO L423 AbstractCegarLoop]: === Iteration 35 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-01-31 14:34:54,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-31 14:34:54,137 INFO L82 PathProgramCache]: Analyzing trace with hash -519178972, now seen corresponding path program 34 times [2019-01-31 14:34:54,137 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-01-31 14:34:54,137 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-31 14:34:54,137 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-01-31 14:34:54,137 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-31 14:34:54,138 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-01-31 14:34:54,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-31 14:34:55,878 INFO L273 TraceCheckUtils]: 0: Hoare triple {15960#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {15962#(and (or (<= 0 main_i) (< 34 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 0) (<= main_n 34)))} is VALID [2019-01-31 14:34:55,880 INFO L273 TraceCheckUtils]: 1: Hoare triple {15962#(and (or (<= 0 main_i) (< 34 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 0) (<= main_n 34)))} assume a[i] != 23;i := i + 4; {15963#(and (or (< 34 main_n) (<= 4 main_i)) (or (<= main_i 4) (<= main_n 34)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:55,880 INFO L273 TraceCheckUtils]: 2: Hoare triple {15963#(and (or (< 34 main_n) (<= 4 main_i)) (or (<= main_i 4) (<= main_n 34)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {15963#(and (or (< 34 main_n) (<= 4 main_i)) (or (<= main_i 4) (<= main_n 34)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:55,881 INFO L273 TraceCheckUtils]: 3: Hoare triple {15963#(and (or (< 34 main_n) (<= 4 main_i)) (or (<= main_i 4) (<= main_n 34)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {15964#(and (or (<= 8 main_i) (< 34 main_n)) (or (<= main_i 8) (<= main_n 34)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:55,882 INFO L273 TraceCheckUtils]: 4: Hoare triple {15964#(and (or (<= 8 main_i) (< 34 main_n)) (or (<= main_i 8) (<= main_n 34)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {15964#(and (or (<= 8 main_i) (< 34 main_n)) (or (<= main_i 8) (<= main_n 34)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:55,883 INFO L273 TraceCheckUtils]: 5: Hoare triple {15964#(and (or (<= 8 main_i) (< 34 main_n)) (or (<= main_i 8) (<= main_n 34)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {15965#(and (or (<= main_n 34) (<= main_i 12)) (or (< 34 main_n) (<= 12 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:55,884 INFO L273 TraceCheckUtils]: 6: Hoare triple {15965#(and (or (<= main_n 34) (<= main_i 12)) (or (< 34 main_n) (<= 12 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {15965#(and (or (<= main_n 34) (<= main_i 12)) (or (< 34 main_n) (<= 12 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:55,885 INFO L273 TraceCheckUtils]: 7: Hoare triple {15965#(and (or (<= main_n 34) (<= main_i 12)) (or (< 34 main_n) (<= 12 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {15966#(and (or (<= main_i 16) (<= main_n 34)) (= 23 (select main_a (* 4 main_n))) (or (<= 16 main_i) (< 34 main_n)))} is VALID [2019-01-31 14:34:55,886 INFO L273 TraceCheckUtils]: 8: Hoare triple {15966#(and (or (<= main_i 16) (<= main_n 34)) (= 23 (select main_a (* 4 main_n))) (or (<= 16 main_i) (< 34 main_n)))} assume i <= n * 4; {15966#(and (or (<= main_i 16) (<= main_n 34)) (= 23 (select main_a (* 4 main_n))) (or (<= 16 main_i) (< 34 main_n)))} is VALID [2019-01-31 14:34:55,887 INFO L273 TraceCheckUtils]: 9: Hoare triple {15966#(and (or (<= main_i 16) (<= main_n 34)) (= 23 (select main_a (* 4 main_n))) (or (<= 16 main_i) (< 34 main_n)))} assume a[i] != 23;i := i + 4; {15967#(and (or (<= main_i 20) (<= main_n 34)) (or (< 34 main_n) (<= 20 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:55,888 INFO L273 TraceCheckUtils]: 10: Hoare triple {15967#(and (or (<= main_i 20) (<= main_n 34)) (or (< 34 main_n) (<= 20 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {15967#(and (or (<= main_i 20) (<= main_n 34)) (or (< 34 main_n) (<= 20 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:55,889 INFO L273 TraceCheckUtils]: 11: Hoare triple {15967#(and (or (<= main_i 20) (<= main_n 34)) (or (< 34 main_n) (<= 20 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {15968#(and (or (<= main_i 24) (<= main_n 34)) (= 23 (select main_a (* 4 main_n))) (or (<= 24 main_i) (< 34 main_n)))} is VALID [2019-01-31 14:34:55,890 INFO L273 TraceCheckUtils]: 12: Hoare triple {15968#(and (or (<= main_i 24) (<= main_n 34)) (= 23 (select main_a (* 4 main_n))) (or (<= 24 main_i) (< 34 main_n)))} assume i <= n * 4; {15968#(and (or (<= main_i 24) (<= main_n 34)) (= 23 (select main_a (* 4 main_n))) (or (<= 24 main_i) (< 34 main_n)))} is VALID [2019-01-31 14:34:55,891 INFO L273 TraceCheckUtils]: 13: Hoare triple {15968#(and (or (<= main_i 24) (<= main_n 34)) (= 23 (select main_a (* 4 main_n))) (or (<= 24 main_i) (< 34 main_n)))} assume a[i] != 23;i := i + 4; {15969#(and (or (<= 28 main_i) (< 34 main_n)) (or (<= main_n 34) (<= main_i 28)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:55,892 INFO L273 TraceCheckUtils]: 14: Hoare triple {15969#(and (or (<= 28 main_i) (< 34 main_n)) (or (<= main_n 34) (<= main_i 28)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {15969#(and (or (<= 28 main_i) (< 34 main_n)) (or (<= main_n 34) (<= main_i 28)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:55,893 INFO L273 TraceCheckUtils]: 15: Hoare triple {15969#(and (or (<= 28 main_i) (< 34 main_n)) (or (<= main_n 34) (<= main_i 28)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {15970#(and (or (<= main_i 32) (<= main_n 34)) (or (<= 32 main_i) (< 34 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:55,894 INFO L273 TraceCheckUtils]: 16: Hoare triple {15970#(and (or (<= main_i 32) (<= main_n 34)) (or (<= 32 main_i) (< 34 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {15970#(and (or (<= main_i 32) (<= main_n 34)) (or (<= 32 main_i) (< 34 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:55,895 INFO L273 TraceCheckUtils]: 17: Hoare triple {15970#(and (or (<= main_i 32) (<= main_n 34)) (or (<= 32 main_i) (< 34 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {15971#(and (or (<= main_i 36) (<= main_n 34)) (= 23 (select main_a (* 4 main_n))) (or (< 34 main_n) (<= 36 main_i)))} is VALID [2019-01-31 14:34:55,896 INFO L273 TraceCheckUtils]: 18: Hoare triple {15971#(and (or (<= main_i 36) (<= main_n 34)) (= 23 (select main_a (* 4 main_n))) (or (< 34 main_n) (<= 36 main_i)))} assume i <= n * 4; {15971#(and (or (<= main_i 36) (<= main_n 34)) (= 23 (select main_a (* 4 main_n))) (or (< 34 main_n) (<= 36 main_i)))} is VALID [2019-01-31 14:34:55,897 INFO L273 TraceCheckUtils]: 19: Hoare triple {15971#(and (or (<= main_i 36) (<= main_n 34)) (= 23 (select main_a (* 4 main_n))) (or (< 34 main_n) (<= 36 main_i)))} assume a[i] != 23;i := i + 4; {15972#(and (or (<= 40 main_i) (< 34 main_n)) (or (<= main_i 40) (<= main_n 34)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:55,897 INFO L273 TraceCheckUtils]: 20: Hoare triple {15972#(and (or (<= 40 main_i) (< 34 main_n)) (or (<= main_i 40) (<= main_n 34)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {15972#(and (or (<= 40 main_i) (< 34 main_n)) (or (<= main_i 40) (<= main_n 34)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:55,898 INFO L273 TraceCheckUtils]: 21: Hoare triple {15972#(and (or (<= 40 main_i) (< 34 main_n)) (or (<= main_i 40) (<= main_n 34)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {15973#(and (or (<= main_n 34) (<= main_i 44)) (or (<= 44 main_i) (< 34 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:55,899 INFO L273 TraceCheckUtils]: 22: Hoare triple {15973#(and (or (<= main_n 34) (<= main_i 44)) (or (<= 44 main_i) (< 34 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {15973#(and (or (<= main_n 34) (<= main_i 44)) (or (<= 44 main_i) (< 34 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:55,900 INFO L273 TraceCheckUtils]: 23: Hoare triple {15973#(and (or (<= main_n 34) (<= main_i 44)) (or (<= 44 main_i) (< 34 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {15974#(and (or (<= 48 main_i) (< 34 main_n)) (or (<= main_n 34) (<= main_i 48)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:55,901 INFO L273 TraceCheckUtils]: 24: Hoare triple {15974#(and (or (<= 48 main_i) (< 34 main_n)) (or (<= main_n 34) (<= main_i 48)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {15974#(and (or (<= 48 main_i) (< 34 main_n)) (or (<= main_n 34) (<= main_i 48)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:55,902 INFO L273 TraceCheckUtils]: 25: Hoare triple {15974#(and (or (<= 48 main_i) (< 34 main_n)) (or (<= main_n 34) (<= main_i 48)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {15975#(and (or (< 34 main_n) (<= 52 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 52) (<= main_n 34)))} is VALID [2019-01-31 14:34:55,903 INFO L273 TraceCheckUtils]: 26: Hoare triple {15975#(and (or (< 34 main_n) (<= 52 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 52) (<= main_n 34)))} assume i <= n * 4; {15975#(and (or (< 34 main_n) (<= 52 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 52) (<= main_n 34)))} is VALID [2019-01-31 14:34:55,904 INFO L273 TraceCheckUtils]: 27: Hoare triple {15975#(and (or (< 34 main_n) (<= 52 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 52) (<= main_n 34)))} assume a[i] != 23;i := i + 4; {15976#(and (or (<= main_i 56) (<= main_n 34)) (or (< 34 main_n) (<= 56 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:55,904 INFO L273 TraceCheckUtils]: 28: Hoare triple {15976#(and (or (<= main_i 56) (<= main_n 34)) (or (< 34 main_n) (<= 56 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {15976#(and (or (<= main_i 56) (<= main_n 34)) (or (< 34 main_n) (<= 56 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:55,906 INFO L273 TraceCheckUtils]: 29: Hoare triple {15976#(and (or (<= main_i 56) (<= main_n 34)) (or (< 34 main_n) (<= 56 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {15977#(and (or (<= main_i 60) (<= main_n 34)) (or (<= 60 main_i) (< 34 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:55,906 INFO L273 TraceCheckUtils]: 30: Hoare triple {15977#(and (or (<= main_i 60) (<= main_n 34)) (or (<= 60 main_i) (< 34 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {15977#(and (or (<= main_i 60) (<= main_n 34)) (or (<= 60 main_i) (< 34 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:55,907 INFO L273 TraceCheckUtils]: 31: Hoare triple {15977#(and (or (<= main_i 60) (<= main_n 34)) (or (<= 60 main_i) (< 34 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {15978#(and (or (<= main_i 64) (<= main_n 34)) (or (<= 64 main_i) (< 34 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:55,908 INFO L273 TraceCheckUtils]: 32: Hoare triple {15978#(and (or (<= main_i 64) (<= main_n 34)) (or (<= 64 main_i) (< 34 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {15978#(and (or (<= main_i 64) (<= main_n 34)) (or (<= 64 main_i) (< 34 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:55,909 INFO L273 TraceCheckUtils]: 33: Hoare triple {15978#(and (or (<= main_i 64) (<= main_n 34)) (or (<= 64 main_i) (< 34 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {15979#(and (or (<= main_n 34) (<= main_i 68)) (= 23 (select main_a (* 4 main_n))) (or (< 34 main_n) (<= 68 main_i)))} is VALID [2019-01-31 14:34:55,910 INFO L273 TraceCheckUtils]: 34: Hoare triple {15979#(and (or (<= main_n 34) (<= main_i 68)) (= 23 (select main_a (* 4 main_n))) (or (< 34 main_n) (<= 68 main_i)))} assume i <= n * 4; {15979#(and (or (<= main_n 34) (<= main_i 68)) (= 23 (select main_a (* 4 main_n))) (or (< 34 main_n) (<= 68 main_i)))} is VALID [2019-01-31 14:34:55,911 INFO L273 TraceCheckUtils]: 35: Hoare triple {15979#(and (or (<= main_n 34) (<= main_i 68)) (= 23 (select main_a (* 4 main_n))) (or (< 34 main_n) (<= 68 main_i)))} assume a[i] != 23;i := i + 4; {15980#(and (or (<= main_i 72) (<= main_n 34)) (or (<= 72 main_i) (< 34 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:55,912 INFO L273 TraceCheckUtils]: 36: Hoare triple {15980#(and (or (<= main_i 72) (<= main_n 34)) (or (<= 72 main_i) (< 34 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {15980#(and (or (<= main_i 72) (<= main_n 34)) (or (<= 72 main_i) (< 34 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:55,913 INFO L273 TraceCheckUtils]: 37: Hoare triple {15980#(and (or (<= main_i 72) (<= main_n 34)) (or (<= 72 main_i) (< 34 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {15981#(and (or (<= main_i 76) (<= main_n 34)) (= 23 (select main_a (* 4 main_n))) (or (<= 76 main_i) (< 34 main_n)))} is VALID [2019-01-31 14:34:55,913 INFO L273 TraceCheckUtils]: 38: Hoare triple {15981#(and (or (<= main_i 76) (<= main_n 34)) (= 23 (select main_a (* 4 main_n))) (or (<= 76 main_i) (< 34 main_n)))} assume i <= n * 4; {15981#(and (or (<= main_i 76) (<= main_n 34)) (= 23 (select main_a (* 4 main_n))) (or (<= 76 main_i) (< 34 main_n)))} is VALID [2019-01-31 14:34:55,914 INFO L273 TraceCheckUtils]: 39: Hoare triple {15981#(and (or (<= main_i 76) (<= main_n 34)) (= 23 (select main_a (* 4 main_n))) (or (<= 76 main_i) (< 34 main_n)))} assume a[i] != 23;i := i + 4; {15982#(and (or (<= 80 main_i) (< 34 main_n)) (or (<= main_n 34) (<= main_i 80)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:55,915 INFO L273 TraceCheckUtils]: 40: Hoare triple {15982#(and (or (<= 80 main_i) (< 34 main_n)) (or (<= main_n 34) (<= main_i 80)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {15982#(and (or (<= 80 main_i) (< 34 main_n)) (or (<= main_n 34) (<= main_i 80)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:55,916 INFO L273 TraceCheckUtils]: 41: Hoare triple {15982#(and (or (<= 80 main_i) (< 34 main_n)) (or (<= main_n 34) (<= main_i 80)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {15983#(and (or (< 34 main_n) (<= 84 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 84) (<= main_n 34)))} is VALID [2019-01-31 14:34:55,917 INFO L273 TraceCheckUtils]: 42: Hoare triple {15983#(and (or (< 34 main_n) (<= 84 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 84) (<= main_n 34)))} assume i <= n * 4; {15983#(and (or (< 34 main_n) (<= 84 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 84) (<= main_n 34)))} is VALID [2019-01-31 14:34:55,918 INFO L273 TraceCheckUtils]: 43: Hoare triple {15983#(and (or (< 34 main_n) (<= 84 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 84) (<= main_n 34)))} assume a[i] != 23;i := i + 4; {15984#(and (or (< 34 main_n) (<= 88 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 88) (<= main_n 34)))} is VALID [2019-01-31 14:34:55,919 INFO L273 TraceCheckUtils]: 44: Hoare triple {15984#(and (or (< 34 main_n) (<= 88 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 88) (<= main_n 34)))} assume i <= n * 4; {15984#(and (or (< 34 main_n) (<= 88 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 88) (<= main_n 34)))} is VALID [2019-01-31 14:34:55,920 INFO L273 TraceCheckUtils]: 45: Hoare triple {15984#(and (or (< 34 main_n) (<= 88 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 88) (<= main_n 34)))} assume a[i] != 23;i := i + 4; {15985#(and (or (< 34 main_n) (<= 92 main_i)) (or (<= main_i 92) (<= main_n 34)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:55,920 INFO L273 TraceCheckUtils]: 46: Hoare triple {15985#(and (or (< 34 main_n) (<= 92 main_i)) (or (<= main_i 92) (<= main_n 34)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {15985#(and (or (< 34 main_n) (<= 92 main_i)) (or (<= main_i 92) (<= main_n 34)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:55,921 INFO L273 TraceCheckUtils]: 47: Hoare triple {15985#(and (or (< 34 main_n) (<= 92 main_i)) (or (<= main_i 92) (<= main_n 34)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {15986#(and (or (<= 96 main_i) (< 34 main_n)) (or (<= main_i 96) (<= main_n 34)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:55,922 INFO L273 TraceCheckUtils]: 48: Hoare triple {15986#(and (or (<= 96 main_i) (< 34 main_n)) (or (<= main_i 96) (<= main_n 34)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {15986#(and (or (<= 96 main_i) (< 34 main_n)) (or (<= main_i 96) (<= main_n 34)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:55,923 INFO L273 TraceCheckUtils]: 49: Hoare triple {15986#(and (or (<= 96 main_i) (< 34 main_n)) (or (<= main_i 96) (<= main_n 34)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {15987#(and (or (<= 100 main_i) (< 34 main_n)) (or (<= main_i 100) (<= main_n 34)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:55,924 INFO L273 TraceCheckUtils]: 50: Hoare triple {15987#(and (or (<= 100 main_i) (< 34 main_n)) (or (<= main_i 100) (<= main_n 34)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {15987#(and (or (<= 100 main_i) (< 34 main_n)) (or (<= main_i 100) (<= main_n 34)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:55,925 INFO L273 TraceCheckUtils]: 51: Hoare triple {15987#(and (or (<= 100 main_i) (< 34 main_n)) (or (<= main_i 100) (<= main_n 34)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {15988#(and (or (<= main_i 104) (<= main_n 34)) (= 23 (select main_a (* 4 main_n))) (or (<= 104 main_i) (< 34 main_n)))} is VALID [2019-01-31 14:34:55,926 INFO L273 TraceCheckUtils]: 52: Hoare triple {15988#(and (or (<= main_i 104) (<= main_n 34)) (= 23 (select main_a (* 4 main_n))) (or (<= 104 main_i) (< 34 main_n)))} assume i <= n * 4; {15988#(and (or (<= main_i 104) (<= main_n 34)) (= 23 (select main_a (* 4 main_n))) (or (<= 104 main_i) (< 34 main_n)))} is VALID [2019-01-31 14:34:55,927 INFO L273 TraceCheckUtils]: 53: Hoare triple {15988#(and (or (<= main_i 104) (<= main_n 34)) (= 23 (select main_a (* 4 main_n))) (or (<= 104 main_i) (< 34 main_n)))} assume a[i] != 23;i := i + 4; {15989#(and (or (<= 108 main_i) (< 34 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 34) (<= main_i 108)))} is VALID [2019-01-31 14:34:55,928 INFO L273 TraceCheckUtils]: 54: Hoare triple {15989#(and (or (<= 108 main_i) (< 34 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 34) (<= main_i 108)))} assume i <= n * 4; {15989#(and (or (<= 108 main_i) (< 34 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 34) (<= main_i 108)))} is VALID [2019-01-31 14:34:55,929 INFO L273 TraceCheckUtils]: 55: Hoare triple {15989#(and (or (<= 108 main_i) (< 34 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 34) (<= main_i 108)))} assume a[i] != 23;i := i + 4; {15990#(and (or (<= main_n 34) (<= main_i 112)) (= 23 (select main_a (* 4 main_n))) (or (< 34 main_n) (<= 112 main_i)))} is VALID [2019-01-31 14:34:55,929 INFO L273 TraceCheckUtils]: 56: Hoare triple {15990#(and (or (<= main_n 34) (<= main_i 112)) (= 23 (select main_a (* 4 main_n))) (or (< 34 main_n) (<= 112 main_i)))} assume i <= n * 4; {15990#(and (or (<= main_n 34) (<= main_i 112)) (= 23 (select main_a (* 4 main_n))) (or (< 34 main_n) (<= 112 main_i)))} is VALID [2019-01-31 14:34:55,930 INFO L273 TraceCheckUtils]: 57: Hoare triple {15990#(and (or (<= main_n 34) (<= main_i 112)) (= 23 (select main_a (* 4 main_n))) (or (< 34 main_n) (<= 112 main_i)))} assume a[i] != 23;i := i + 4; {15991#(and (or (<= 116 main_i) (< 34 main_n)) (or (<= main_i 116) (<= main_n 34)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:55,931 INFO L273 TraceCheckUtils]: 58: Hoare triple {15991#(and (or (<= 116 main_i) (< 34 main_n)) (or (<= main_i 116) (<= main_n 34)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {15991#(and (or (<= 116 main_i) (< 34 main_n)) (or (<= main_i 116) (<= main_n 34)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:55,932 INFO L273 TraceCheckUtils]: 59: Hoare triple {15991#(and (or (<= 116 main_i) (< 34 main_n)) (or (<= main_i 116) (<= main_n 34)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {15992#(and (or (<= 120 main_i) (< 34 main_n)) (or (<= main_i 120) (<= main_n 34)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:55,933 INFO L273 TraceCheckUtils]: 60: Hoare triple {15992#(and (or (<= 120 main_i) (< 34 main_n)) (or (<= main_i 120) (<= main_n 34)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {15992#(and (or (<= 120 main_i) (< 34 main_n)) (or (<= main_i 120) (<= main_n 34)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:55,934 INFO L273 TraceCheckUtils]: 61: Hoare triple {15992#(and (or (<= 120 main_i) (< 34 main_n)) (or (<= main_i 120) (<= main_n 34)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {15993#(and (or (<= main_i 124) (<= main_n 34)) (or (<= 124 main_i) (< 34 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:55,935 INFO L273 TraceCheckUtils]: 62: Hoare triple {15993#(and (or (<= main_i 124) (<= main_n 34)) (or (<= 124 main_i) (< 34 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {15993#(and (or (<= main_i 124) (<= main_n 34)) (or (<= 124 main_i) (< 34 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:55,936 INFO L273 TraceCheckUtils]: 63: Hoare triple {15993#(and (or (<= main_i 124) (<= main_n 34)) (or (<= 124 main_i) (< 34 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {15994#(and (or (<= main_i 128) (<= main_n 34)) (or (< 34 main_n) (<= 128 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:55,936 INFO L273 TraceCheckUtils]: 64: Hoare triple {15994#(and (or (<= main_i 128) (<= main_n 34)) (or (< 34 main_n) (<= 128 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {15994#(and (or (<= main_i 128) (<= main_n 34)) (or (< 34 main_n) (<= 128 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:55,937 INFO L273 TraceCheckUtils]: 65: Hoare triple {15994#(and (or (<= main_i 128) (<= main_n 34)) (or (< 34 main_n) (<= 128 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {15995#(and (or (<= 132 main_i) (< 34 main_n)) (or (<= main_i 132) (<= main_n 34)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:55,938 INFO L273 TraceCheckUtils]: 66: Hoare triple {15995#(and (or (<= 132 main_i) (< 34 main_n)) (or (<= main_i 132) (<= main_n 34)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {15995#(and (or (<= 132 main_i) (< 34 main_n)) (or (<= main_i 132) (<= main_n 34)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:55,939 INFO L273 TraceCheckUtils]: 67: Hoare triple {15995#(and (or (<= 132 main_i) (< 34 main_n)) (or (<= main_i 132) (<= main_n 34)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {15996#(and (or (= (* 4 main_n) main_i) (and (or (<= (* 4 main_n) main_i) (< 34 main_n)) (or (<= main_i 136) (<= main_n 34)))) (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))))} is VALID [2019-01-31 14:34:55,940 INFO L273 TraceCheckUtils]: 68: Hoare triple {15996#(and (or (= (* 4 main_n) main_i) (and (or (<= (* 4 main_n) main_i) (< 34 main_n)) (or (<= main_i 136) (<= main_n 34)))) (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))))} assume i <= n * 4; {15997#(and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (or (= (* 4 main_n) main_i) (and (<= main_i 136) (< 34 main_n))))} is VALID [2019-01-31 14:34:55,941 INFO L273 TraceCheckUtils]: 69: Hoare triple {15997#(and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (or (= (* 4 main_n) main_i) (and (<= main_i 136) (< 34 main_n))))} assume a[i] != 23;i := i + 4; {15998#(and (< 34 main_n) (<= main_i 140))} is VALID [2019-01-31 14:34:55,942 INFO L273 TraceCheckUtils]: 70: Hoare triple {15998#(and (< 34 main_n) (<= main_i 140))} assume !(i <= n * 4); {15961#false} is VALID [2019-01-31 14:34:55,966 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 14:34:55,966 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-31 14:34:55,966 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-01-31 14:34:55,966 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-01-31 14:34:55,967 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-01-31 14:34:55,967 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-31 14:34:55,967 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 14:34:55,975 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-31 14:34:55,975 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2019-01-31 14:34:55,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-31 14:34:56,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-31 14:34:56,014 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-31 14:34:56,028 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 14:34:56,029 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-01-31 14:34:56,038 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-31 14:34:56,038 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2019-01-31 14:34:56,040 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-01-31 14:34:56,040 WARN L398 uantifierElimination]: Input elimination task: ∃ [v_main_a_38]. (and (= (store v_main_a_38 (* 4 main_n) 23) main_a) (= main_i 0)) [2019-01-31 14:34:56,040 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2019-01-31 14:34:58,198 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2019-01-31 14:34:58,200 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-01-31 14:34:58,204 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-31 14:34:58,205 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2019-01-31 14:34:58,207 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-01-31 14:34:58,207 WARN L398 uantifierElimination]: Input elimination task: ∃ [main_a]. (let ((.cse0 (* 4 main_n))) (and (not (= (select main_a 136) 23)) (<= 136 .cse0) (= 23 (select main_a .cse0)) (<= main_i 140))) [2019-01-31 14:34:58,207 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (let ((.cse0 (* 4 main_n))) (and (not (= 136 .cse0)) (<= 136 .cse0) (<= main_i 140))) [2019-01-31 14:34:58,253 INFO L273 TraceCheckUtils]: 0: Hoare triple {15960#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {16002#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:58,254 INFO L273 TraceCheckUtils]: 1: Hoare triple {16002#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {16006#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2019-01-31 14:34:58,254 INFO L273 TraceCheckUtils]: 2: Hoare triple {16006#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume i <= n * 4; {16006#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2019-01-31 14:34:58,254 INFO L273 TraceCheckUtils]: 3: Hoare triple {16006#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume a[i] != 23;i := i + 4; {16013#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:58,255 INFO L273 TraceCheckUtils]: 4: Hoare triple {16013#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {16013#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:58,255 INFO L273 TraceCheckUtils]: 5: Hoare triple {16013#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {16020#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2019-01-31 14:34:58,256 INFO L273 TraceCheckUtils]: 6: Hoare triple {16020#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume i <= n * 4; {16020#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2019-01-31 14:34:58,257 INFO L273 TraceCheckUtils]: 7: Hoare triple {16020#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume a[i] != 23;i := i + 4; {16027#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:58,257 INFO L273 TraceCheckUtils]: 8: Hoare triple {16027#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {16027#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:58,258 INFO L273 TraceCheckUtils]: 9: Hoare triple {16027#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {16034#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:58,259 INFO L273 TraceCheckUtils]: 10: Hoare triple {16034#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {16034#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:58,259 INFO L273 TraceCheckUtils]: 11: Hoare triple {16034#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {16041#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:58,260 INFO L273 TraceCheckUtils]: 12: Hoare triple {16041#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {16041#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:58,261 INFO L273 TraceCheckUtils]: 13: Hoare triple {16041#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {16048#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:58,261 INFO L273 TraceCheckUtils]: 14: Hoare triple {16048#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {16048#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:58,262 INFO L273 TraceCheckUtils]: 15: Hoare triple {16048#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {16055#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:58,263 INFO L273 TraceCheckUtils]: 16: Hoare triple {16055#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {16055#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:58,263 INFO L273 TraceCheckUtils]: 17: Hoare triple {16055#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {16062#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:58,264 INFO L273 TraceCheckUtils]: 18: Hoare triple {16062#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {16062#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:58,265 INFO L273 TraceCheckUtils]: 19: Hoare triple {16062#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {16069#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:58,265 INFO L273 TraceCheckUtils]: 20: Hoare triple {16069#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {16069#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:58,266 INFO L273 TraceCheckUtils]: 21: Hoare triple {16069#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {16076#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:58,267 INFO L273 TraceCheckUtils]: 22: Hoare triple {16076#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {16076#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:58,267 INFO L273 TraceCheckUtils]: 23: Hoare triple {16076#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {16083#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:58,268 INFO L273 TraceCheckUtils]: 24: Hoare triple {16083#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {16083#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:58,269 INFO L273 TraceCheckUtils]: 25: Hoare triple {16083#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {16090#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:58,269 INFO L273 TraceCheckUtils]: 26: Hoare triple {16090#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {16090#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:58,270 INFO L273 TraceCheckUtils]: 27: Hoare triple {16090#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {16097#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:58,271 INFO L273 TraceCheckUtils]: 28: Hoare triple {16097#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {16097#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:58,271 INFO L273 TraceCheckUtils]: 29: Hoare triple {16097#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {16104#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:58,272 INFO L273 TraceCheckUtils]: 30: Hoare triple {16104#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {16104#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:58,273 INFO L273 TraceCheckUtils]: 31: Hoare triple {16104#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {16111#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:58,273 INFO L273 TraceCheckUtils]: 32: Hoare triple {16111#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {16111#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:58,274 INFO L273 TraceCheckUtils]: 33: Hoare triple {16111#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {16118#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:58,275 INFO L273 TraceCheckUtils]: 34: Hoare triple {16118#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {16118#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:58,275 INFO L273 TraceCheckUtils]: 35: Hoare triple {16118#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {16125#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:58,276 INFO L273 TraceCheckUtils]: 36: Hoare triple {16125#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {16125#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:58,277 INFO L273 TraceCheckUtils]: 37: Hoare triple {16125#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {16132#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:58,277 INFO L273 TraceCheckUtils]: 38: Hoare triple {16132#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {16132#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:58,278 INFO L273 TraceCheckUtils]: 39: Hoare triple {16132#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {16139#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} is VALID [2019-01-31 14:34:58,279 INFO L273 TraceCheckUtils]: 40: Hoare triple {16139#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} assume i <= n * 4; {16139#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} is VALID [2019-01-31 14:34:58,279 INFO L273 TraceCheckUtils]: 41: Hoare triple {16139#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} assume a[i] != 23;i := i + 4; {16146#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:58,280 INFO L273 TraceCheckUtils]: 42: Hoare triple {16146#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {16146#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:58,281 INFO L273 TraceCheckUtils]: 43: Hoare triple {16146#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {16153#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:58,282 INFO L273 TraceCheckUtils]: 44: Hoare triple {16153#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {16153#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:58,282 INFO L273 TraceCheckUtils]: 45: Hoare triple {16153#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {16160#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:58,283 INFO L273 TraceCheckUtils]: 46: Hoare triple {16160#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {16160#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:58,284 INFO L273 TraceCheckUtils]: 47: Hoare triple {16160#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {16167#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:58,284 INFO L273 TraceCheckUtils]: 48: Hoare triple {16167#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {16167#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:58,285 INFO L273 TraceCheckUtils]: 49: Hoare triple {16167#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {16174#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:58,286 INFO L273 TraceCheckUtils]: 50: Hoare triple {16174#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {16174#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:58,286 INFO L273 TraceCheckUtils]: 51: Hoare triple {16174#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {16181#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:58,287 INFO L273 TraceCheckUtils]: 52: Hoare triple {16181#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {16181#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:58,288 INFO L273 TraceCheckUtils]: 53: Hoare triple {16181#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {16188#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:58,288 INFO L273 TraceCheckUtils]: 54: Hoare triple {16188#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {16188#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:58,289 INFO L273 TraceCheckUtils]: 55: Hoare triple {16188#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {16195#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:58,290 INFO L273 TraceCheckUtils]: 56: Hoare triple {16195#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {16195#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:58,290 INFO L273 TraceCheckUtils]: 57: Hoare triple {16195#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {16202#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:58,291 INFO L273 TraceCheckUtils]: 58: Hoare triple {16202#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {16202#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:58,292 INFO L273 TraceCheckUtils]: 59: Hoare triple {16202#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {16209#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:58,292 INFO L273 TraceCheckUtils]: 60: Hoare triple {16209#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {16209#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:58,293 INFO L273 TraceCheckUtils]: 61: Hoare triple {16209#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {16216#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:58,294 INFO L273 TraceCheckUtils]: 62: Hoare triple {16216#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {16216#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:58,295 INFO L273 TraceCheckUtils]: 63: Hoare triple {16216#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {16223#(and (= main_i 128) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:58,295 INFO L273 TraceCheckUtils]: 64: Hoare triple {16223#(and (= main_i 128) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {16223#(and (= main_i 128) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:58,296 INFO L273 TraceCheckUtils]: 65: Hoare triple {16223#(and (= main_i 128) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {16230#(and (= main_i 132) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:58,297 INFO L273 TraceCheckUtils]: 66: Hoare triple {16230#(and (= main_i 132) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {16230#(and (= main_i 132) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:58,297 INFO L273 TraceCheckUtils]: 67: Hoare triple {16230#(and (= main_i 132) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {16237#(and (= main_i 136) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:58,298 INFO L273 TraceCheckUtils]: 68: Hoare triple {16237#(and (= main_i 136) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {16241#(and (= main_i 136) (<= main_i (* 4 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:34:58,299 INFO L273 TraceCheckUtils]: 69: Hoare triple {16241#(and (= main_i 136) (<= main_i (* 4 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {15998#(and (< 34 main_n) (<= main_i 140))} is VALID [2019-01-31 14:34:58,300 INFO L273 TraceCheckUtils]: 70: Hoare triple {15998#(and (< 34 main_n) (<= main_i 140))} assume !(i <= n * 4); {15961#false} is VALID [2019-01-31 14:34:58,312 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 14:34:58,312 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2019-01-31 14:35:02,153 INFO L273 TraceCheckUtils]: 70: Hoare triple {16248#(<= main_i (* 4 main_n))} assume !(i <= n * 4); {15961#false} is VALID [2019-01-31 14:35:02,154 INFO L273 TraceCheckUtils]: 69: Hoare triple {16252#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} assume a[i] != 23;i := i + 4; {16248#(<= main_i (* 4 main_n))} is VALID [2019-01-31 14:35:02,155 INFO L273 TraceCheckUtils]: 68: Hoare triple {16256#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} assume i <= n * 4; {16252#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} is VALID [2019-01-31 14:35:02,156 INFO L273 TraceCheckUtils]: 67: Hoare triple {16260#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume a[i] != 23;i := i + 4; {16256#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} is VALID [2019-01-31 14:35:02,157 INFO L273 TraceCheckUtils]: 66: Hoare triple {16260#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume i <= n * 4; {16260#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2019-01-31 14:35:02,158 INFO L273 TraceCheckUtils]: 65: Hoare triple {16267#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume a[i] != 23;i := i + 4; {16260#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2019-01-31 14:35:02,158 INFO L273 TraceCheckUtils]: 64: Hoare triple {16267#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume i <= n * 4; {16267#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2019-01-31 14:35:02,159 INFO L273 TraceCheckUtils]: 63: Hoare triple {16274#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume a[i] != 23;i := i + 4; {16267#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2019-01-31 14:35:02,160 INFO L273 TraceCheckUtils]: 62: Hoare triple {16274#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume i <= n * 4; {16274#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2019-01-31 14:35:02,161 INFO L273 TraceCheckUtils]: 61: Hoare triple {16281#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume a[i] != 23;i := i + 4; {16274#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2019-01-31 14:35:02,162 INFO L273 TraceCheckUtils]: 60: Hoare triple {16281#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume i <= n * 4; {16281#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2019-01-31 14:35:02,163 INFO L273 TraceCheckUtils]: 59: Hoare triple {16288#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {16281#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2019-01-31 14:35:02,163 INFO L273 TraceCheckUtils]: 58: Hoare triple {16288#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume i <= n * 4; {16288#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2019-01-31 14:35:02,164 INFO L273 TraceCheckUtils]: 57: Hoare triple {16295#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume a[i] != 23;i := i + 4; {16288#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2019-01-31 14:35:02,165 INFO L273 TraceCheckUtils]: 56: Hoare triple {16295#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume i <= n * 4; {16295#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2019-01-31 14:35:02,166 INFO L273 TraceCheckUtils]: 55: Hoare triple {16302#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {16295#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2019-01-31 14:35:02,166 INFO L273 TraceCheckUtils]: 54: Hoare triple {16302#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume i <= n * 4; {16302#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2019-01-31 14:35:02,167 INFO L273 TraceCheckUtils]: 53: Hoare triple {16309#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {16302#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2019-01-31 14:35:02,168 INFO L273 TraceCheckUtils]: 52: Hoare triple {16309#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume i <= n * 4; {16309#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2019-01-31 14:35:02,169 INFO L273 TraceCheckUtils]: 51: Hoare triple {16316#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {16309#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2019-01-31 14:35:02,170 INFO L273 TraceCheckUtils]: 50: Hoare triple {16316#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume i <= n * 4; {16316#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2019-01-31 14:35:02,171 INFO L273 TraceCheckUtils]: 49: Hoare triple {16323#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} assume a[i] != 23;i := i + 4; {16316#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2019-01-31 14:35:02,171 INFO L273 TraceCheckUtils]: 48: Hoare triple {16323#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} assume i <= n * 4; {16323#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} is VALID [2019-01-31 14:35:02,172 INFO L273 TraceCheckUtils]: 47: Hoare triple {16330#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {16323#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} is VALID [2019-01-31 14:35:02,173 INFO L273 TraceCheckUtils]: 46: Hoare triple {16330#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} assume i <= n * 4; {16330#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} is VALID [2019-01-31 14:35:02,174 INFO L273 TraceCheckUtils]: 45: Hoare triple {16337#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {16330#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} is VALID [2019-01-31 14:35:02,174 INFO L273 TraceCheckUtils]: 44: Hoare triple {16337#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} assume i <= n * 4; {16337#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} is VALID [2019-01-31 14:35:02,175 INFO L273 TraceCheckUtils]: 43: Hoare triple {16344#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} assume a[i] != 23;i := i + 4; {16337#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} is VALID [2019-01-31 14:35:02,176 INFO L273 TraceCheckUtils]: 42: Hoare triple {16344#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} assume i <= n * 4; {16344#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} is VALID [2019-01-31 14:35:02,177 INFO L273 TraceCheckUtils]: 41: Hoare triple {16351#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {16344#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} is VALID [2019-01-31 14:35:02,177 INFO L273 TraceCheckUtils]: 40: Hoare triple {16351#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} assume i <= n * 4; {16351#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} is VALID [2019-01-31 14:35:02,178 INFO L273 TraceCheckUtils]: 39: Hoare triple {16358#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} assume a[i] != 23;i := i + 4; {16351#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} is VALID [2019-01-31 14:35:02,179 INFO L273 TraceCheckUtils]: 38: Hoare triple {16358#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} assume i <= n * 4; {16358#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} is VALID [2019-01-31 14:35:02,180 INFO L273 TraceCheckUtils]: 37: Hoare triple {16365#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} assume a[i] != 23;i := i + 4; {16358#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} is VALID [2019-01-31 14:35:02,181 INFO L273 TraceCheckUtils]: 36: Hoare triple {16365#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} assume i <= n * 4; {16365#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} is VALID [2019-01-31 14:35:02,182 INFO L273 TraceCheckUtils]: 35: Hoare triple {16372#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} assume a[i] != 23;i := i + 4; {16365#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} is VALID [2019-01-31 14:35:02,182 INFO L273 TraceCheckUtils]: 34: Hoare triple {16372#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} assume i <= n * 4; {16372#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} is VALID [2019-01-31 14:35:02,183 INFO L273 TraceCheckUtils]: 33: Hoare triple {16379#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} assume a[i] != 23;i := i + 4; {16372#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} is VALID [2019-01-31 14:35:02,184 INFO L273 TraceCheckUtils]: 32: Hoare triple {16379#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} assume i <= n * 4; {16379#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} is VALID [2019-01-31 14:35:02,185 INFO L273 TraceCheckUtils]: 31: Hoare triple {16386#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} assume a[i] != 23;i := i + 4; {16379#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} is VALID [2019-01-31 14:35:02,185 INFO L273 TraceCheckUtils]: 30: Hoare triple {16386#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} assume i <= n * 4; {16386#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} is VALID [2019-01-31 14:35:02,186 INFO L273 TraceCheckUtils]: 29: Hoare triple {16393#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} assume a[i] != 23;i := i + 4; {16386#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} is VALID [2019-01-31 14:35:02,187 INFO L273 TraceCheckUtils]: 28: Hoare triple {16393#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} assume i <= n * 4; {16393#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} is VALID [2019-01-31 14:35:02,188 INFO L273 TraceCheckUtils]: 27: Hoare triple {16400#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {16393#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} is VALID [2019-01-31 14:35:02,189 INFO L273 TraceCheckUtils]: 26: Hoare triple {16400#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} assume i <= n * 4; {16400#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} is VALID [2019-01-31 14:35:02,190 INFO L273 TraceCheckUtils]: 25: Hoare triple {16407#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {16400#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} is VALID [2019-01-31 14:35:02,190 INFO L273 TraceCheckUtils]: 24: Hoare triple {16407#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} assume i <= n * 4; {16407#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} is VALID [2019-01-31 14:35:02,191 INFO L273 TraceCheckUtils]: 23: Hoare triple {16414#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {16407#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} is VALID [2019-01-31 14:35:02,192 INFO L273 TraceCheckUtils]: 22: Hoare triple {16414#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} assume i <= n * 4; {16414#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} is VALID [2019-01-31 14:35:02,193 INFO L273 TraceCheckUtils]: 21: Hoare triple {16421#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} assume a[i] != 23;i := i + 4; {16414#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} is VALID [2019-01-31 14:35:02,193 INFO L273 TraceCheckUtils]: 20: Hoare triple {16421#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} assume i <= n * 4; {16421#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} is VALID [2019-01-31 14:35:02,194 INFO L273 TraceCheckUtils]: 19: Hoare triple {16428#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {16421#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} is VALID [2019-01-31 14:35:02,195 INFO L273 TraceCheckUtils]: 18: Hoare triple {16428#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} assume i <= n * 4; {16428#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} is VALID [2019-01-31 14:35:02,196 INFO L273 TraceCheckUtils]: 17: Hoare triple {16435#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} assume a[i] != 23;i := i + 4; {16428#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} is VALID [2019-01-31 14:35:02,197 INFO L273 TraceCheckUtils]: 16: Hoare triple {16435#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} assume i <= n * 4; {16435#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} is VALID [2019-01-31 14:35:02,198 INFO L273 TraceCheckUtils]: 15: Hoare triple {16442#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} assume a[i] != 23;i := i + 4; {16435#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} is VALID [2019-01-31 14:35:02,198 INFO L273 TraceCheckUtils]: 14: Hoare triple {16442#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} assume i <= n * 4; {16442#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} is VALID [2019-01-31 14:35:02,199 INFO L273 TraceCheckUtils]: 13: Hoare triple {16449#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} assume a[i] != 23;i := i + 4; {16442#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} is VALID [2019-01-31 14:35:02,200 INFO L273 TraceCheckUtils]: 12: Hoare triple {16449#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} assume i <= n * 4; {16449#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} is VALID [2019-01-31 14:35:02,201 INFO L273 TraceCheckUtils]: 11: Hoare triple {16456#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {16449#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} is VALID [2019-01-31 14:35:02,201 INFO L273 TraceCheckUtils]: 10: Hoare triple {16456#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} assume i <= n * 4; {16456#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} is VALID [2019-01-31 14:35:02,202 INFO L273 TraceCheckUtils]: 9: Hoare triple {16463#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {16456#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} is VALID [2019-01-31 14:35:02,203 INFO L273 TraceCheckUtils]: 8: Hoare triple {16463#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} assume i <= n * 4; {16463#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} is VALID [2019-01-31 14:35:02,204 INFO L273 TraceCheckUtils]: 7: Hoare triple {16470#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} assume a[i] != 23;i := i + 4; {16463#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} is VALID [2019-01-31 14:35:02,204 INFO L273 TraceCheckUtils]: 6: Hoare triple {16470#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} assume i <= n * 4; {16470#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} is VALID [2019-01-31 14:35:02,205 INFO L273 TraceCheckUtils]: 5: Hoare triple {16477#(or (< (* 4 main_n) (+ main_i 128)) (= (select main_a (+ main_i 128)) 23) (< (+ main_i 131) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {16470#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} is VALID [2019-01-31 14:35:02,206 INFO L273 TraceCheckUtils]: 4: Hoare triple {16477#(or (< (* 4 main_n) (+ main_i 128)) (= (select main_a (+ main_i 128)) 23) (< (+ main_i 131) (* 4 main_n)))} assume i <= n * 4; {16477#(or (< (* 4 main_n) (+ main_i 128)) (= (select main_a (+ main_i 128)) 23) (< (+ main_i 131) (* 4 main_n)))} is VALID [2019-01-31 14:35:02,207 INFO L273 TraceCheckUtils]: 3: Hoare triple {16484#(or (< (* 4 main_n) (+ main_i 132)) (< (+ main_i 135) (* 4 main_n)) (= (select main_a (+ main_i 132)) 23))} assume a[i] != 23;i := i + 4; {16477#(or (< (* 4 main_n) (+ main_i 128)) (= (select main_a (+ main_i 128)) 23) (< (+ main_i 131) (* 4 main_n)))} is VALID [2019-01-31 14:35:02,208 INFO L273 TraceCheckUtils]: 2: Hoare triple {16484#(or (< (* 4 main_n) (+ main_i 132)) (< (+ main_i 135) (* 4 main_n)) (= (select main_a (+ main_i 132)) 23))} assume i <= n * 4; {16484#(or (< (* 4 main_n) (+ main_i 132)) (< (+ main_i 135) (* 4 main_n)) (= (select main_a (+ main_i 132)) 23))} is VALID [2019-01-31 14:35:02,209 INFO L273 TraceCheckUtils]: 1: Hoare triple {16491#(or (< (+ main_i 139) (* 4 main_n)) (= (select main_a (+ main_i 136)) 23) (< (* 4 main_n) (+ main_i 136)))} assume a[i] != 23;i := i + 4; {16484#(or (< (* 4 main_n) (+ main_i 132)) (< (+ main_i 135) (* 4 main_n)) (= (select main_a (+ main_i 132)) 23))} is VALID [2019-01-31 14:35:02,210 INFO L273 TraceCheckUtils]: 0: Hoare triple {15960#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {16491#(or (< (+ main_i 139) (* 4 main_n)) (= (select main_a (+ main_i 136)) 23) (< (* 4 main_n) (+ main_i 136)))} is VALID [2019-01-31 14:35:02,234 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 14:35:02,253 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-01-31 14:35:02,254 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [37, 37, 37] total 110 [2019-01-31 14:35:02,254 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-01-31 14:35:02,254 INFO L78 Accepts]: Start accepts. Automaton has 75 states. Word has length 71 [2019-01-31 14:35:02,254 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-01-31 14:35:02,254 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 75 states. [2019-01-31 14:35:02,418 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 141 edges. 141 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-01-31 14:35:02,418 INFO L459 AbstractCegarLoop]: Interpolant automaton has 75 states [2019-01-31 14:35:02,418 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 75 interpolants. [2019-01-31 14:35:02,419 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1562, Invalid=10870, Unknown=0, NotChecked=0, Total=12432 [2019-01-31 14:35:02,419 INFO L87 Difference]: Start difference. First operand 72 states and 72 transitions. Second operand 75 states. [2019-01-31 14:35:13,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 14:35:13,007 INFO L93 Difference]: Finished difference Result 76 states and 76 transitions. [2019-01-31 14:35:13,007 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2019-01-31 14:35:13,007 INFO L78 Accepts]: Start accepts. Automaton has 75 states. Word has length 71 [2019-01-31 14:35:13,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-31 14:35:13,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 75 states. [2019-01-31 14:35:13,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 76 transitions. [2019-01-31 14:35:13,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 75 states. [2019-01-31 14:35:13,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 76 transitions. [2019-01-31 14:35:13,011 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 39 states and 76 transitions. [2019-01-31 14:35:13,097 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 14:35:13,099 INFO L225 Difference]: With dead ends: 76 [2019-01-31 14:35:13,099 INFO L226 Difference]: Without dead ends: 75 [2019-01-31 14:35:13,100 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 177 GetRequests, 66 SyntacticMatches, 1 SemanticMatches, 110 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2808 ImplicationChecksByTransitivity, 7.1s TimeCoverageRelationStatistics Valid=1562, Invalid=10870, Unknown=0, NotChecked=0, Total=12432 [2019-01-31 14:35:13,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2019-01-31 14:35:13,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 74. [2019-01-31 14:35:13,181 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-01-31 14:35:13,181 INFO L82 GeneralOperation]: Start isEquivalent. First operand 75 states. Second operand 74 states. [2019-01-31 14:35:13,182 INFO L74 IsIncluded]: Start isIncluded. First operand 75 states. Second operand 74 states. [2019-01-31 14:35:13,182 INFO L87 Difference]: Start difference. First operand 75 states. Second operand 74 states. [2019-01-31 14:35:13,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 14:35:13,183 INFO L93 Difference]: Finished difference Result 75 states and 75 transitions. [2019-01-31 14:35:13,183 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 75 transitions. [2019-01-31 14:35:13,184 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-31 14:35:13,184 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-01-31 14:35:13,184 INFO L74 IsIncluded]: Start isIncluded. First operand 74 states. Second operand 75 states. [2019-01-31 14:35:13,184 INFO L87 Difference]: Start difference. First operand 74 states. Second operand 75 states. [2019-01-31 14:35:13,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 14:35:13,185 INFO L93 Difference]: Finished difference Result 75 states and 75 transitions. [2019-01-31 14:35:13,185 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 75 transitions. [2019-01-31 14:35:13,185 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-31 14:35:13,185 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-01-31 14:35:13,185 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-01-31 14:35:13,185 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-01-31 14:35:13,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2019-01-31 14:35:13,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 74 transitions. [2019-01-31 14:35:13,186 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 74 transitions. Word has length 71 [2019-01-31 14:35:13,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-31 14:35:13,186 INFO L480 AbstractCegarLoop]: Abstraction has 74 states and 74 transitions. [2019-01-31 14:35:13,186 INFO L481 AbstractCegarLoop]: Interpolant automaton has 75 states. [2019-01-31 14:35:13,186 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 74 transitions. [2019-01-31 14:35:13,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2019-01-31 14:35:13,187 INFO L394 BasicCegarLoop]: Found error trace [2019-01-31 14:35:13,187 INFO L402 BasicCegarLoop]: trace histogram [36, 35, 1, 1] [2019-01-31 14:35:13,187 INFO L423 AbstractCegarLoop]: === Iteration 36 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-01-31 14:35:13,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-31 14:35:13,187 INFO L82 PathProgramCache]: Analyzing trace with hash -714784666, now seen corresponding path program 35 times [2019-01-31 14:35:13,187 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-01-31 14:35:13,188 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-31 14:35:13,188 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-31 14:35:13,188 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-31 14:35:13,188 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-01-31 14:35:13,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-31 14:35:13,631 WARN L181 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 18 [2019-01-31 14:35:15,396 INFO L273 TraceCheckUtils]: 0: Hoare triple {16867#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {16869#(and (or (<= main_i 0) (<= main_n 35)) (or (and (<= 0 main_i) (= 23 (select main_a (* 4 main_n)))) (< 35 main_n)))} is VALID [2019-01-31 14:35:15,397 INFO L273 TraceCheckUtils]: 1: Hoare triple {16869#(and (or (<= main_i 0) (<= main_n 35)) (or (and (<= 0 main_i) (= 23 (select main_a (* 4 main_n)))) (< 35 main_n)))} assume a[i] != 23;i := i + 4; {16870#(and (or (< 35 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i))) (or (<= main_i 4) (<= main_n 35)))} is VALID [2019-01-31 14:35:15,398 INFO L273 TraceCheckUtils]: 2: Hoare triple {16870#(and (or (< 35 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i))) (or (<= main_i 4) (<= main_n 35)))} assume i <= n * 4; {16870#(and (or (< 35 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i))) (or (<= main_i 4) (<= main_n 35)))} is VALID [2019-01-31 14:35:15,399 INFO L273 TraceCheckUtils]: 3: Hoare triple {16870#(and (or (< 35 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i))) (or (<= main_i 4) (<= main_n 35)))} assume a[i] != 23;i := i + 4; {16871#(and (or (< 35 main_n) (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 8) (<= main_n 35)))} is VALID [2019-01-31 14:35:15,400 INFO L273 TraceCheckUtils]: 4: Hoare triple {16871#(and (or (< 35 main_n) (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 8) (<= main_n 35)))} assume i <= n * 4; {16871#(and (or (< 35 main_n) (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 8) (<= main_n 35)))} is VALID [2019-01-31 14:35:15,401 INFO L273 TraceCheckUtils]: 5: Hoare triple {16871#(and (or (< 35 main_n) (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 8) (<= main_n 35)))} assume a[i] != 23;i := i + 4; {16872#(and (or (<= main_n 35) (<= main_i 12)) (or (< 35 main_n) (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:35:15,402 INFO L273 TraceCheckUtils]: 6: Hoare triple {16872#(and (or (<= main_n 35) (<= main_i 12)) (or (< 35 main_n) (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {16872#(and (or (<= main_n 35) (<= main_i 12)) (or (< 35 main_n) (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:35:15,403 INFO L273 TraceCheckUtils]: 7: Hoare triple {16872#(and (or (<= main_n 35) (<= main_i 12)) (or (< 35 main_n) (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {16873#(and (or (<= main_i 16) (<= main_n 35)) (or (< 35 main_n) (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:35:15,404 INFO L273 TraceCheckUtils]: 8: Hoare triple {16873#(and (or (<= main_i 16) (<= main_n 35)) (or (< 35 main_n) (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {16873#(and (or (<= main_i 16) (<= main_n 35)) (or (< 35 main_n) (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:35:15,405 INFO L273 TraceCheckUtils]: 9: Hoare triple {16873#(and (or (<= main_i 16) (<= main_n 35)) (or (< 35 main_n) (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {16874#(and (or (< 35 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 20) (<= main_n 35)))} is VALID [2019-01-31 14:35:15,405 INFO L273 TraceCheckUtils]: 10: Hoare triple {16874#(and (or (< 35 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 20) (<= main_n 35)))} assume i <= n * 4; {16874#(and (or (< 35 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 20) (<= main_n 35)))} is VALID [2019-01-31 14:35:15,407 INFO L273 TraceCheckUtils]: 11: Hoare triple {16874#(and (or (< 35 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 20) (<= main_n 35)))} assume a[i] != 23;i := i + 4; {16875#(and (or (<= main_i 24) (<= main_n 35)) (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 35 main_n)))} is VALID [2019-01-31 14:35:15,407 INFO L273 TraceCheckUtils]: 12: Hoare triple {16875#(and (or (<= main_i 24) (<= main_n 35)) (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 35 main_n)))} assume i <= n * 4; {16875#(and (or (<= main_i 24) (<= main_n 35)) (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 35 main_n)))} is VALID [2019-01-31 14:35:15,408 INFO L273 TraceCheckUtils]: 13: Hoare triple {16875#(and (or (<= main_i 24) (<= main_n 35)) (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 35 main_n)))} assume a[i] != 23;i := i + 4; {16876#(and (or (<= main_n 35) (<= main_i 28)) (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 35 main_n)))} is VALID [2019-01-31 14:35:15,414 INFO L273 TraceCheckUtils]: 14: Hoare triple {16876#(and (or (<= main_n 35) (<= main_i 28)) (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 35 main_n)))} assume i <= n * 4; {16876#(and (or (<= main_n 35) (<= main_i 28)) (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 35 main_n)))} is VALID [2019-01-31 14:35:15,415 INFO L273 TraceCheckUtils]: 15: Hoare triple {16876#(and (or (<= main_n 35) (<= main_i 28)) (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 35 main_n)))} assume a[i] != 23;i := i + 4; {16877#(and (or (< 35 main_n) (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 32) (<= main_n 35)))} is VALID [2019-01-31 14:35:15,415 INFO L273 TraceCheckUtils]: 16: Hoare triple {16877#(and (or (< 35 main_n) (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 32) (<= main_n 35)))} assume i <= n * 4; {16877#(and (or (< 35 main_n) (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 32) (<= main_n 35)))} is VALID [2019-01-31 14:35:15,416 INFO L273 TraceCheckUtils]: 17: Hoare triple {16877#(and (or (< 35 main_n) (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 32) (<= main_n 35)))} assume a[i] != 23;i := i + 4; {16878#(and (or (<= main_i 36) (<= main_n 35)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i)) (< 35 main_n)))} is VALID [2019-01-31 14:35:15,416 INFO L273 TraceCheckUtils]: 18: Hoare triple {16878#(and (or (<= main_i 36) (<= main_n 35)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i)) (< 35 main_n)))} assume i <= n * 4; {16878#(and (or (<= main_i 36) (<= main_n 35)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i)) (< 35 main_n)))} is VALID [2019-01-31 14:35:15,417 INFO L273 TraceCheckUtils]: 19: Hoare triple {16878#(and (or (<= main_i 36) (<= main_n 35)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i)) (< 35 main_n)))} assume a[i] != 23;i := i + 4; {16879#(and (or (< 35 main_n) (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 40) (<= main_n 35)))} is VALID [2019-01-31 14:35:15,418 INFO L273 TraceCheckUtils]: 20: Hoare triple {16879#(and (or (< 35 main_n) (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 40) (<= main_n 35)))} assume i <= n * 4; {16879#(and (or (< 35 main_n) (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 40) (<= main_n 35)))} is VALID [2019-01-31 14:35:15,419 INFO L273 TraceCheckUtils]: 21: Hoare triple {16879#(and (or (< 35 main_n) (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 40) (<= main_n 35)))} assume a[i] != 23;i := i + 4; {16880#(and (or (<= main_n 35) (<= main_i 44)) (or (< 35 main_n) (and (<= 44 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:35:15,420 INFO L273 TraceCheckUtils]: 22: Hoare triple {16880#(and (or (<= main_n 35) (<= main_i 44)) (or (< 35 main_n) (and (<= 44 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {16880#(and (or (<= main_n 35) (<= main_i 44)) (or (< 35 main_n) (and (<= 44 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:35:15,421 INFO L273 TraceCheckUtils]: 23: Hoare triple {16880#(and (or (<= main_n 35) (<= main_i 44)) (or (< 35 main_n) (and (<= 44 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {16881#(and (or (and (<= 48 main_i) (= 23 (select main_a (* 4 main_n)))) (< 35 main_n)) (or (<= main_n 35) (<= main_i 48)))} is VALID [2019-01-31 14:35:15,422 INFO L273 TraceCheckUtils]: 24: Hoare triple {16881#(and (or (and (<= 48 main_i) (= 23 (select main_a (* 4 main_n)))) (< 35 main_n)) (or (<= main_n 35) (<= main_i 48)))} assume i <= n * 4; {16881#(and (or (and (<= 48 main_i) (= 23 (select main_a (* 4 main_n)))) (< 35 main_n)) (or (<= main_n 35) (<= main_i 48)))} is VALID [2019-01-31 14:35:15,423 INFO L273 TraceCheckUtils]: 25: Hoare triple {16881#(and (or (and (<= 48 main_i) (= 23 (select main_a (* 4 main_n)))) (< 35 main_n)) (or (<= main_n 35) (<= main_i 48)))} assume a[i] != 23;i := i + 4; {16882#(and (or (and (<= 52 main_i) (= 23 (select main_a (* 4 main_n)))) (< 35 main_n)) (or (<= main_i 52) (<= main_n 35)))} is VALID [2019-01-31 14:35:15,424 INFO L273 TraceCheckUtils]: 26: Hoare triple {16882#(and (or (and (<= 52 main_i) (= 23 (select main_a (* 4 main_n)))) (< 35 main_n)) (or (<= main_i 52) (<= main_n 35)))} assume i <= n * 4; {16882#(and (or (and (<= 52 main_i) (= 23 (select main_a (* 4 main_n)))) (< 35 main_n)) (or (<= main_i 52) (<= main_n 35)))} is VALID [2019-01-31 14:35:15,425 INFO L273 TraceCheckUtils]: 27: Hoare triple {16882#(and (or (and (<= 52 main_i) (= 23 (select main_a (* 4 main_n)))) (< 35 main_n)) (or (<= main_i 52) (<= main_n 35)))} assume a[i] != 23;i := i + 4; {16883#(and (or (< 35 main_n) (and (<= 56 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 56) (<= main_n 35)))} is VALID [2019-01-31 14:35:15,426 INFO L273 TraceCheckUtils]: 28: Hoare triple {16883#(and (or (< 35 main_n) (and (<= 56 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 56) (<= main_n 35)))} assume i <= n * 4; {16883#(and (or (< 35 main_n) (and (<= 56 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 56) (<= main_n 35)))} is VALID [2019-01-31 14:35:15,427 INFO L273 TraceCheckUtils]: 29: Hoare triple {16883#(and (or (< 35 main_n) (and (<= 56 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 56) (<= main_n 35)))} assume a[i] != 23;i := i + 4; {16884#(and (or (<= main_i 60) (<= main_n 35)) (or (< 35 main_n) (and (<= 60 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:35:15,428 INFO L273 TraceCheckUtils]: 30: Hoare triple {16884#(and (or (<= main_i 60) (<= main_n 35)) (or (< 35 main_n) (and (<= 60 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {16884#(and (or (<= main_i 60) (<= main_n 35)) (or (< 35 main_n) (and (<= 60 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:35:15,429 INFO L273 TraceCheckUtils]: 31: Hoare triple {16884#(and (or (<= main_i 60) (<= main_n 35)) (or (< 35 main_n) (and (<= 60 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {16885#(and (or (< 35 main_n) (and (<= 64 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 64) (<= main_n 35)))} is VALID [2019-01-31 14:35:15,430 INFO L273 TraceCheckUtils]: 32: Hoare triple {16885#(and (or (< 35 main_n) (and (<= 64 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 64) (<= main_n 35)))} assume i <= n * 4; {16885#(and (or (< 35 main_n) (and (<= 64 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 64) (<= main_n 35)))} is VALID [2019-01-31 14:35:15,431 INFO L273 TraceCheckUtils]: 33: Hoare triple {16885#(and (or (< 35 main_n) (and (<= 64 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 64) (<= main_n 35)))} assume a[i] != 23;i := i + 4; {16886#(and (or (<= main_n 35) (<= main_i 68)) (or (and (<= 68 main_i) (= 23 (select main_a (* 4 main_n)))) (< 35 main_n)))} is VALID [2019-01-31 14:35:15,432 INFO L273 TraceCheckUtils]: 34: Hoare triple {16886#(and (or (<= main_n 35) (<= main_i 68)) (or (and (<= 68 main_i) (= 23 (select main_a (* 4 main_n)))) (< 35 main_n)))} assume i <= n * 4; {16886#(and (or (<= main_n 35) (<= main_i 68)) (or (and (<= 68 main_i) (= 23 (select main_a (* 4 main_n)))) (< 35 main_n)))} is VALID [2019-01-31 14:35:15,433 INFO L273 TraceCheckUtils]: 35: Hoare triple {16886#(and (or (<= main_n 35) (<= main_i 68)) (or (and (<= 68 main_i) (= 23 (select main_a (* 4 main_n)))) (< 35 main_n)))} assume a[i] != 23;i := i + 4; {16887#(and (or (and (<= 72 main_i) (= 23 (select main_a (* 4 main_n)))) (< 35 main_n)) (or (<= main_i 72) (<= main_n 35)))} is VALID [2019-01-31 14:35:15,433 INFO L273 TraceCheckUtils]: 36: Hoare triple {16887#(and (or (and (<= 72 main_i) (= 23 (select main_a (* 4 main_n)))) (< 35 main_n)) (or (<= main_i 72) (<= main_n 35)))} assume i <= n * 4; {16887#(and (or (and (<= 72 main_i) (= 23 (select main_a (* 4 main_n)))) (< 35 main_n)) (or (<= main_i 72) (<= main_n 35)))} is VALID [2019-01-31 14:35:15,435 INFO L273 TraceCheckUtils]: 37: Hoare triple {16887#(and (or (and (<= 72 main_i) (= 23 (select main_a (* 4 main_n)))) (< 35 main_n)) (or (<= main_i 72) (<= main_n 35)))} assume a[i] != 23;i := i + 4; {16888#(and (or (<= main_i 76) (<= main_n 35)) (or (and (<= 76 main_i) (= 23 (select main_a (* 4 main_n)))) (< 35 main_n)))} is VALID [2019-01-31 14:35:15,435 INFO L273 TraceCheckUtils]: 38: Hoare triple {16888#(and (or (<= main_i 76) (<= main_n 35)) (or (and (<= 76 main_i) (= 23 (select main_a (* 4 main_n)))) (< 35 main_n)))} assume i <= n * 4; {16888#(and (or (<= main_i 76) (<= main_n 35)) (or (and (<= 76 main_i) (= 23 (select main_a (* 4 main_n)))) (< 35 main_n)))} is VALID [2019-01-31 14:35:15,436 INFO L273 TraceCheckUtils]: 39: Hoare triple {16888#(and (or (<= main_i 76) (<= main_n 35)) (or (and (<= 76 main_i) (= 23 (select main_a (* 4 main_n)))) (< 35 main_n)))} assume a[i] != 23;i := i + 4; {16889#(and (or (<= main_n 35) (<= main_i 80)) (or (< 35 main_n) (and (<= 80 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:35:15,437 INFO L273 TraceCheckUtils]: 40: Hoare triple {16889#(and (or (<= main_n 35) (<= main_i 80)) (or (< 35 main_n) (and (<= 80 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {16889#(and (or (<= main_n 35) (<= main_i 80)) (or (< 35 main_n) (and (<= 80 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:35:15,438 INFO L273 TraceCheckUtils]: 41: Hoare triple {16889#(and (or (<= main_n 35) (<= main_i 80)) (or (< 35 main_n) (and (<= 80 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {16890#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 84 main_i)) (< 35 main_n)) (or (<= main_i 84) (<= main_n 35)))} is VALID [2019-01-31 14:35:15,439 INFO L273 TraceCheckUtils]: 42: Hoare triple {16890#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 84 main_i)) (< 35 main_n)) (or (<= main_i 84) (<= main_n 35)))} assume i <= n * 4; {16890#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 84 main_i)) (< 35 main_n)) (or (<= main_i 84) (<= main_n 35)))} is VALID [2019-01-31 14:35:15,440 INFO L273 TraceCheckUtils]: 43: Hoare triple {16890#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 84 main_i)) (< 35 main_n)) (or (<= main_i 84) (<= main_n 35)))} assume a[i] != 23;i := i + 4; {16891#(and (or (<= main_i 88) (<= main_n 35)) (or (< 35 main_n) (and (<= 88 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:35:15,441 INFO L273 TraceCheckUtils]: 44: Hoare triple {16891#(and (or (<= main_i 88) (<= main_n 35)) (or (< 35 main_n) (and (<= 88 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {16891#(and (or (<= main_i 88) (<= main_n 35)) (or (< 35 main_n) (and (<= 88 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:35:15,442 INFO L273 TraceCheckUtils]: 45: Hoare triple {16891#(and (or (<= main_i 88) (<= main_n 35)) (or (< 35 main_n) (and (<= 88 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {16892#(and (or (<= main_i 92) (<= main_n 35)) (or (< 35 main_n) (and (<= 92 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:35:15,443 INFO L273 TraceCheckUtils]: 46: Hoare triple {16892#(and (or (<= main_i 92) (<= main_n 35)) (or (< 35 main_n) (and (<= 92 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {16892#(and (or (<= main_i 92) (<= main_n 35)) (or (< 35 main_n) (and (<= 92 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:35:15,444 INFO L273 TraceCheckUtils]: 47: Hoare triple {16892#(and (or (<= main_i 92) (<= main_n 35)) (or (< 35 main_n) (and (<= 92 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {16893#(and (or (and (<= 96 main_i) (= 23 (select main_a (* 4 main_n)))) (< 35 main_n)) (or (<= main_i 96) (<= main_n 35)))} is VALID [2019-01-31 14:35:15,445 INFO L273 TraceCheckUtils]: 48: Hoare triple {16893#(and (or (and (<= 96 main_i) (= 23 (select main_a (* 4 main_n)))) (< 35 main_n)) (or (<= main_i 96) (<= main_n 35)))} assume i <= n * 4; {16893#(and (or (and (<= 96 main_i) (= 23 (select main_a (* 4 main_n)))) (< 35 main_n)) (or (<= main_i 96) (<= main_n 35)))} is VALID [2019-01-31 14:35:15,446 INFO L273 TraceCheckUtils]: 49: Hoare triple {16893#(and (or (and (<= 96 main_i) (= 23 (select main_a (* 4 main_n)))) (< 35 main_n)) (or (<= main_i 96) (<= main_n 35)))} assume a[i] != 23;i := i + 4; {16894#(and (or (and (<= 100 main_i) (= 23 (select main_a (* 4 main_n)))) (< 35 main_n)) (or (<= main_i 100) (<= main_n 35)))} is VALID [2019-01-31 14:35:15,447 INFO L273 TraceCheckUtils]: 50: Hoare triple {16894#(and (or (and (<= 100 main_i) (= 23 (select main_a (* 4 main_n)))) (< 35 main_n)) (or (<= main_i 100) (<= main_n 35)))} assume i <= n * 4; {16894#(and (or (and (<= 100 main_i) (= 23 (select main_a (* 4 main_n)))) (< 35 main_n)) (or (<= main_i 100) (<= main_n 35)))} is VALID [2019-01-31 14:35:15,448 INFO L273 TraceCheckUtils]: 51: Hoare triple {16894#(and (or (and (<= 100 main_i) (= 23 (select main_a (* 4 main_n)))) (< 35 main_n)) (or (<= main_i 100) (<= main_n 35)))} assume a[i] != 23;i := i + 4; {16895#(and (or (and (<= 104 main_i) (= 23 (select main_a (* 4 main_n)))) (< 35 main_n)) (or (<= main_i 104) (<= main_n 35)))} is VALID [2019-01-31 14:35:15,449 INFO L273 TraceCheckUtils]: 52: Hoare triple {16895#(and (or (and (<= 104 main_i) (= 23 (select main_a (* 4 main_n)))) (< 35 main_n)) (or (<= main_i 104) (<= main_n 35)))} assume i <= n * 4; {16895#(and (or (and (<= 104 main_i) (= 23 (select main_a (* 4 main_n)))) (< 35 main_n)) (or (<= main_i 104) (<= main_n 35)))} is VALID [2019-01-31 14:35:15,450 INFO L273 TraceCheckUtils]: 53: Hoare triple {16895#(and (or (and (<= 104 main_i) (= 23 (select main_a (* 4 main_n)))) (< 35 main_n)) (or (<= main_i 104) (<= main_n 35)))} assume a[i] != 23;i := i + 4; {16896#(and (or (< 35 main_n) (and (<= 108 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 35) (<= main_i 108)))} is VALID [2019-01-31 14:35:15,451 INFO L273 TraceCheckUtils]: 54: Hoare triple {16896#(and (or (< 35 main_n) (and (<= 108 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 35) (<= main_i 108)))} assume i <= n * 4; {16896#(and (or (< 35 main_n) (and (<= 108 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 35) (<= main_i 108)))} is VALID [2019-01-31 14:35:15,452 INFO L273 TraceCheckUtils]: 55: Hoare triple {16896#(and (or (< 35 main_n) (and (<= 108 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 35) (<= main_i 108)))} assume a[i] != 23;i := i + 4; {16897#(and (or (< 35 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 112 main_i))) (or (<= main_n 35) (<= main_i 112)))} is VALID [2019-01-31 14:35:15,453 INFO L273 TraceCheckUtils]: 56: Hoare triple {16897#(and (or (< 35 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 112 main_i))) (or (<= main_n 35) (<= main_i 112)))} assume i <= n * 4; {16897#(and (or (< 35 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 112 main_i))) (or (<= main_n 35) (<= main_i 112)))} is VALID [2019-01-31 14:35:15,454 INFO L273 TraceCheckUtils]: 57: Hoare triple {16897#(and (or (< 35 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 112 main_i))) (or (<= main_n 35) (<= main_i 112)))} assume a[i] != 23;i := i + 4; {16898#(and (or (< 35 main_n) (and (<= 116 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 116) (<= main_n 35)))} is VALID [2019-01-31 14:35:15,454 INFO L273 TraceCheckUtils]: 58: Hoare triple {16898#(and (or (< 35 main_n) (and (<= 116 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 116) (<= main_n 35)))} assume i <= n * 4; {16898#(and (or (< 35 main_n) (and (<= 116 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 116) (<= main_n 35)))} is VALID [2019-01-31 14:35:15,456 INFO L273 TraceCheckUtils]: 59: Hoare triple {16898#(and (or (< 35 main_n) (and (<= 116 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 116) (<= main_n 35)))} assume a[i] != 23;i := i + 4; {16899#(and (or (< 35 main_n) (and (<= 120 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 120) (<= main_n 35)))} is VALID [2019-01-31 14:35:15,456 INFO L273 TraceCheckUtils]: 60: Hoare triple {16899#(and (or (< 35 main_n) (and (<= 120 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 120) (<= main_n 35)))} assume i <= n * 4; {16899#(and (or (< 35 main_n) (and (<= 120 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 120) (<= main_n 35)))} is VALID [2019-01-31 14:35:15,457 INFO L273 TraceCheckUtils]: 61: Hoare triple {16899#(and (or (< 35 main_n) (and (<= 120 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 120) (<= main_n 35)))} assume a[i] != 23;i := i + 4; {16900#(and (or (and (<= 124 main_i) (= 23 (select main_a (* 4 main_n)))) (< 35 main_n)) (or (<= main_i 124) (<= main_n 35)))} is VALID [2019-01-31 14:35:15,458 INFO L273 TraceCheckUtils]: 62: Hoare triple {16900#(and (or (and (<= 124 main_i) (= 23 (select main_a (* 4 main_n)))) (< 35 main_n)) (or (<= main_i 124) (<= main_n 35)))} assume i <= n * 4; {16900#(and (or (and (<= 124 main_i) (= 23 (select main_a (* 4 main_n)))) (< 35 main_n)) (or (<= main_i 124) (<= main_n 35)))} is VALID [2019-01-31 14:35:15,459 INFO L273 TraceCheckUtils]: 63: Hoare triple {16900#(and (or (and (<= 124 main_i) (= 23 (select main_a (* 4 main_n)))) (< 35 main_n)) (or (<= main_i 124) (<= main_n 35)))} assume a[i] != 23;i := i + 4; {16901#(and (or (< 35 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 128 main_i))) (or (<= main_i 128) (<= main_n 35)))} is VALID [2019-01-31 14:35:15,460 INFO L273 TraceCheckUtils]: 64: Hoare triple {16901#(and (or (< 35 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 128 main_i))) (or (<= main_i 128) (<= main_n 35)))} assume i <= n * 4; {16901#(and (or (< 35 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 128 main_i))) (or (<= main_i 128) (<= main_n 35)))} is VALID [2019-01-31 14:35:15,461 INFO L273 TraceCheckUtils]: 65: Hoare triple {16901#(and (or (< 35 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 128 main_i))) (or (<= main_i 128) (<= main_n 35)))} assume a[i] != 23;i := i + 4; {16902#(and (or (<= main_i 132) (<= main_n 35)) (or (< 35 main_n) (and (<= 132 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:35:15,462 INFO L273 TraceCheckUtils]: 66: Hoare triple {16902#(and (or (<= main_i 132) (<= main_n 35)) (or (< 35 main_n) (and (<= 132 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {16902#(and (or (<= main_i 132) (<= main_n 35)) (or (< 35 main_n) (and (<= 132 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:35:15,463 INFO L273 TraceCheckUtils]: 67: Hoare triple {16902#(and (or (<= main_i 132) (<= main_n 35)) (or (< 35 main_n) (and (<= 132 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {16903#(and (or (< 35 main_n) (and (<= 136 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 136) (<= main_n 35)))} is VALID [2019-01-31 14:35:15,464 INFO L273 TraceCheckUtils]: 68: Hoare triple {16903#(and (or (< 35 main_n) (and (<= 136 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 136) (<= main_n 35)))} assume i <= n * 4; {16903#(and (or (< 35 main_n) (and (<= 136 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 136) (<= main_n 35)))} is VALID [2019-01-31 14:35:15,465 INFO L273 TraceCheckUtils]: 69: Hoare triple {16903#(and (or (< 35 main_n) (and (<= 136 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 136) (<= main_n 35)))} assume a[i] != 23;i := i + 4; {16904#(and (or (<= main_n 35) (<= main_i 140)) (or (and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (<= (* 4 main_n) main_i)) (< 35 main_n)))} is VALID [2019-01-31 14:35:15,466 INFO L273 TraceCheckUtils]: 70: Hoare triple {16904#(and (or (<= main_n 35) (<= main_i 140)) (or (and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (<= (* 4 main_n) main_i)) (< 35 main_n)))} assume i <= n * 4; {16905#(and (or (< 35 main_n) (and (<= (* 4 main_n) main_i) (<= main_i (* 4 main_n)) (= 23 (select main_a main_i)))) (<= main_i 140))} is VALID [2019-01-31 14:35:15,467 INFO L273 TraceCheckUtils]: 71: Hoare triple {16905#(and (or (< 35 main_n) (and (<= (* 4 main_n) main_i) (<= main_i (* 4 main_n)) (= 23 (select main_a main_i)))) (<= main_i 140))} assume a[i] != 23;i := i + 4; {16906#(and (<= 36 main_n) (<= main_i 144))} is VALID [2019-01-31 14:35:15,468 INFO L273 TraceCheckUtils]: 72: Hoare triple {16906#(and (<= 36 main_n) (<= main_i 144))} assume !(i <= n * 4); {16868#false} is VALID [2019-01-31 14:35:15,493 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 14:35:15,493 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-31 14:35:15,493 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-01-31 14:35:15,493 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-01-31 14:35:15,493 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-01-31 14:35:15,493 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-31 14:35:15,493 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 14:35:15,502 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2019-01-31 14:35:15,503 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST2 (IT: FPandBP) [2019-01-31 14:35:15,552 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 36 check-sat command(s) [2019-01-31 14:35:15,553 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-01-31 14:35:15,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-31 14:35:15,587 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-31 14:35:15,591 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 14:35:15,592 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-01-31 14:35:15,597 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-31 14:35:15,598 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2019-01-31 14:35:15,600 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-01-31 14:35:15,600 WARN L398 uantifierElimination]: Input elimination task: ∃ [v_main_a_39]. (and (= (store v_main_a_39 (* 4 main_n) 23) main_a) (= main_i 0)) [2019-01-31 14:35:15,600 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2019-01-31 14:35:18,002 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2019-01-31 14:35:18,004 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-01-31 14:35:18,009 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-31 14:35:18,009 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2019-01-31 14:35:18,011 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-01-31 14:35:18,012 WARN L398 uantifierElimination]: Input elimination task: ∃ [main_a]. (let ((.cse0 (* 4 main_n))) (and (<= 140 .cse0) (= 23 (select main_a .cse0)) (not (= (select main_a 140) 23)) (<= main_i 144))) [2019-01-31 14:35:18,012 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (let ((.cse0 (* 4 main_n))) (and (<= 140 .cse0) (not (= 140 .cse0)) (<= main_i 144))) [2019-01-31 14:35:18,085 INFO L273 TraceCheckUtils]: 0: Hoare triple {16867#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {16910#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:35:18,086 INFO L273 TraceCheckUtils]: 1: Hoare triple {16910#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {16914#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2019-01-31 14:35:18,086 INFO L273 TraceCheckUtils]: 2: Hoare triple {16914#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume i <= n * 4; {16914#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2019-01-31 14:35:18,087 INFO L273 TraceCheckUtils]: 3: Hoare triple {16914#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume a[i] != 23;i := i + 4; {16921#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:35:18,088 INFO L273 TraceCheckUtils]: 4: Hoare triple {16921#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {16921#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:35:18,088 INFO L273 TraceCheckUtils]: 5: Hoare triple {16921#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {16928#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2019-01-31 14:35:18,089 INFO L273 TraceCheckUtils]: 6: Hoare triple {16928#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume i <= n * 4; {16928#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2019-01-31 14:35:18,090 INFO L273 TraceCheckUtils]: 7: Hoare triple {16928#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume a[i] != 23;i := i + 4; {16935#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:35:18,091 INFO L273 TraceCheckUtils]: 8: Hoare triple {16935#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {16935#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:35:18,091 INFO L273 TraceCheckUtils]: 9: Hoare triple {16935#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {16942#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:35:18,092 INFO L273 TraceCheckUtils]: 10: Hoare triple {16942#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {16942#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:35:18,093 INFO L273 TraceCheckUtils]: 11: Hoare triple {16942#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {16949#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:35:18,093 INFO L273 TraceCheckUtils]: 12: Hoare triple {16949#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {16949#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:35:18,094 INFO L273 TraceCheckUtils]: 13: Hoare triple {16949#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {16956#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:35:18,095 INFO L273 TraceCheckUtils]: 14: Hoare triple {16956#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {16956#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:35:18,096 INFO L273 TraceCheckUtils]: 15: Hoare triple {16956#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {16963#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:35:18,096 INFO L273 TraceCheckUtils]: 16: Hoare triple {16963#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {16963#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:35:18,097 INFO L273 TraceCheckUtils]: 17: Hoare triple {16963#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {16970#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:35:18,099 INFO L273 TraceCheckUtils]: 18: Hoare triple {16970#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {16970#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:35:18,100 INFO L273 TraceCheckUtils]: 19: Hoare triple {16970#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {16977#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:35:18,100 INFO L273 TraceCheckUtils]: 20: Hoare triple {16977#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {16977#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:35:18,101 INFO L273 TraceCheckUtils]: 21: Hoare triple {16977#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {16984#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:35:18,102 INFO L273 TraceCheckUtils]: 22: Hoare triple {16984#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {16984#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:35:18,103 INFO L273 TraceCheckUtils]: 23: Hoare triple {16984#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {16991#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:35:18,103 INFO L273 TraceCheckUtils]: 24: Hoare triple {16991#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {16991#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:35:18,104 INFO L273 TraceCheckUtils]: 25: Hoare triple {16991#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {16998#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:35:18,105 INFO L273 TraceCheckUtils]: 26: Hoare triple {16998#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {16998#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:35:18,106 INFO L273 TraceCheckUtils]: 27: Hoare triple {16998#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {17005#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:35:18,106 INFO L273 TraceCheckUtils]: 28: Hoare triple {17005#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {17005#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:35:18,107 INFO L273 TraceCheckUtils]: 29: Hoare triple {17005#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {17012#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:35:18,108 INFO L273 TraceCheckUtils]: 30: Hoare triple {17012#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {17012#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:35:18,108 INFO L273 TraceCheckUtils]: 31: Hoare triple {17012#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {17019#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:35:18,109 INFO L273 TraceCheckUtils]: 32: Hoare triple {17019#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {17019#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:35:18,110 INFO L273 TraceCheckUtils]: 33: Hoare triple {17019#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {17026#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:35:18,110 INFO L273 TraceCheckUtils]: 34: Hoare triple {17026#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {17026#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:35:18,111 INFO L273 TraceCheckUtils]: 35: Hoare triple {17026#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {17033#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:35:18,112 INFO L273 TraceCheckUtils]: 36: Hoare triple {17033#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {17033#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:35:18,112 INFO L273 TraceCheckUtils]: 37: Hoare triple {17033#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {17040#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:35:18,113 INFO L273 TraceCheckUtils]: 38: Hoare triple {17040#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {17040#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:35:18,114 INFO L273 TraceCheckUtils]: 39: Hoare triple {17040#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {17047#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} is VALID [2019-01-31 14:35:18,114 INFO L273 TraceCheckUtils]: 40: Hoare triple {17047#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} assume i <= n * 4; {17047#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} is VALID [2019-01-31 14:35:18,115 INFO L273 TraceCheckUtils]: 41: Hoare triple {17047#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} assume a[i] != 23;i := i + 4; {17054#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:35:18,116 INFO L273 TraceCheckUtils]: 42: Hoare triple {17054#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {17054#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:35:18,117 INFO L273 TraceCheckUtils]: 43: Hoare triple {17054#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {17061#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:35:18,117 INFO L273 TraceCheckUtils]: 44: Hoare triple {17061#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {17061#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:35:18,118 INFO L273 TraceCheckUtils]: 45: Hoare triple {17061#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {17068#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:35:18,119 INFO L273 TraceCheckUtils]: 46: Hoare triple {17068#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {17068#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:35:18,119 INFO L273 TraceCheckUtils]: 47: Hoare triple {17068#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {17075#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:35:18,120 INFO L273 TraceCheckUtils]: 48: Hoare triple {17075#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {17075#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:35:18,121 INFO L273 TraceCheckUtils]: 49: Hoare triple {17075#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {17082#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:35:18,121 INFO L273 TraceCheckUtils]: 50: Hoare triple {17082#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {17082#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:35:18,122 INFO L273 TraceCheckUtils]: 51: Hoare triple {17082#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {17089#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:35:18,123 INFO L273 TraceCheckUtils]: 52: Hoare triple {17089#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {17089#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:35:18,123 INFO L273 TraceCheckUtils]: 53: Hoare triple {17089#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {17096#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:35:18,124 INFO L273 TraceCheckUtils]: 54: Hoare triple {17096#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {17096#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:35:18,125 INFO L273 TraceCheckUtils]: 55: Hoare triple {17096#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {17103#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:35:18,125 INFO L273 TraceCheckUtils]: 56: Hoare triple {17103#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {17103#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:35:18,126 INFO L273 TraceCheckUtils]: 57: Hoare triple {17103#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {17110#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:35:18,127 INFO L273 TraceCheckUtils]: 58: Hoare triple {17110#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {17110#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:35:18,127 INFO L273 TraceCheckUtils]: 59: Hoare triple {17110#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {17117#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:35:18,128 INFO L273 TraceCheckUtils]: 60: Hoare triple {17117#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {17117#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:35:18,129 INFO L273 TraceCheckUtils]: 61: Hoare triple {17117#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {17124#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:35:18,135 INFO L273 TraceCheckUtils]: 62: Hoare triple {17124#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {17124#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:35:18,136 INFO L273 TraceCheckUtils]: 63: Hoare triple {17124#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {17131#(and (= main_i 128) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:35:18,136 INFO L273 TraceCheckUtils]: 64: Hoare triple {17131#(and (= main_i 128) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {17131#(and (= main_i 128) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:35:18,136 INFO L273 TraceCheckUtils]: 65: Hoare triple {17131#(and (= main_i 128) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {17138#(and (= main_i 132) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:35:18,137 INFO L273 TraceCheckUtils]: 66: Hoare triple {17138#(and (= main_i 132) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {17138#(and (= main_i 132) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:35:18,137 INFO L273 TraceCheckUtils]: 67: Hoare triple {17138#(and (= main_i 132) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {17145#(and (= main_i 136) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:35:18,138 INFO L273 TraceCheckUtils]: 68: Hoare triple {17145#(and (= main_i 136) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {17145#(and (= main_i 136) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:35:18,139 INFO L273 TraceCheckUtils]: 69: Hoare triple {17145#(and (= main_i 136) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {17152#(and (= 23 (select main_a (* 4 main_n))) (= main_i 140))} is VALID [2019-01-31 14:35:18,139 INFO L273 TraceCheckUtils]: 70: Hoare triple {17152#(and (= 23 (select main_a (* 4 main_n))) (= main_i 140))} assume i <= n * 4; {17156#(and (<= main_i (* 4 main_n)) (= 23 (select main_a (* 4 main_n))) (= main_i 140))} is VALID [2019-01-31 14:35:18,140 INFO L273 TraceCheckUtils]: 71: Hoare triple {17156#(and (<= main_i (* 4 main_n)) (= 23 (select main_a (* 4 main_n))) (= main_i 140))} assume a[i] != 23;i := i + 4; {16906#(and (<= 36 main_n) (<= main_i 144))} is VALID [2019-01-31 14:35:18,141 INFO L273 TraceCheckUtils]: 72: Hoare triple {16906#(and (<= 36 main_n) (<= main_i 144))} assume !(i <= n * 4); {16868#false} is VALID [2019-01-31 14:35:18,154 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 14:35:18,154 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2019-01-31 14:35:22,201 INFO L273 TraceCheckUtils]: 72: Hoare triple {17163#(<= main_i (* 4 main_n))} assume !(i <= n * 4); {16868#false} is VALID [2019-01-31 14:35:22,201 INFO L273 TraceCheckUtils]: 71: Hoare triple {17167#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} assume a[i] != 23;i := i + 4; {17163#(<= main_i (* 4 main_n))} is VALID [2019-01-31 14:35:22,203 INFO L273 TraceCheckUtils]: 70: Hoare triple {17171#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} assume i <= n * 4; {17167#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} is VALID [2019-01-31 14:35:22,204 INFO L273 TraceCheckUtils]: 69: Hoare triple {17175#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume a[i] != 23;i := i + 4; {17171#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} is VALID [2019-01-31 14:35:22,205 INFO L273 TraceCheckUtils]: 68: Hoare triple {17175#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume i <= n * 4; {17175#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2019-01-31 14:35:22,206 INFO L273 TraceCheckUtils]: 67: Hoare triple {17182#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume a[i] != 23;i := i + 4; {17175#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2019-01-31 14:35:22,207 INFO L273 TraceCheckUtils]: 66: Hoare triple {17182#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume i <= n * 4; {17182#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2019-01-31 14:35:22,208 INFO L273 TraceCheckUtils]: 65: Hoare triple {17189#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume a[i] != 23;i := i + 4; {17182#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2019-01-31 14:35:22,209 INFO L273 TraceCheckUtils]: 64: Hoare triple {17189#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume i <= n * 4; {17189#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2019-01-31 14:35:22,210 INFO L273 TraceCheckUtils]: 63: Hoare triple {17196#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume a[i] != 23;i := i + 4; {17189#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2019-01-31 14:35:22,211 INFO L273 TraceCheckUtils]: 62: Hoare triple {17196#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume i <= n * 4; {17196#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2019-01-31 14:35:22,212 INFO L273 TraceCheckUtils]: 61: Hoare triple {17203#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {17196#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2019-01-31 14:35:22,213 INFO L273 TraceCheckUtils]: 60: Hoare triple {17203#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume i <= n * 4; {17203#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2019-01-31 14:35:22,214 INFO L273 TraceCheckUtils]: 59: Hoare triple {17210#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume a[i] != 23;i := i + 4; {17203#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2019-01-31 14:35:22,215 INFO L273 TraceCheckUtils]: 58: Hoare triple {17210#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume i <= n * 4; {17210#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2019-01-31 14:35:22,216 INFO L273 TraceCheckUtils]: 57: Hoare triple {17217#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {17210#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2019-01-31 14:35:22,217 INFO L273 TraceCheckUtils]: 56: Hoare triple {17217#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume i <= n * 4; {17217#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2019-01-31 14:35:22,218 INFO L273 TraceCheckUtils]: 55: Hoare triple {17224#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {17217#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2019-01-31 14:35:22,219 INFO L273 TraceCheckUtils]: 54: Hoare triple {17224#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume i <= n * 4; {17224#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2019-01-31 14:35:22,220 INFO L273 TraceCheckUtils]: 53: Hoare triple {17231#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {17224#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2019-01-31 14:35:22,221 INFO L273 TraceCheckUtils]: 52: Hoare triple {17231#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume i <= n * 4; {17231#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2019-01-31 14:35:22,222 INFO L273 TraceCheckUtils]: 51: Hoare triple {17238#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} assume a[i] != 23;i := i + 4; {17231#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2019-01-31 14:35:22,223 INFO L273 TraceCheckUtils]: 50: Hoare triple {17238#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} assume i <= n * 4; {17238#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} is VALID [2019-01-31 14:35:22,224 INFO L273 TraceCheckUtils]: 49: Hoare triple {17245#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {17238#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} is VALID [2019-01-31 14:35:22,225 INFO L273 TraceCheckUtils]: 48: Hoare triple {17245#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} assume i <= n * 4; {17245#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} is VALID [2019-01-31 14:35:22,226 INFO L273 TraceCheckUtils]: 47: Hoare triple {17252#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {17245#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} is VALID [2019-01-31 14:35:22,227 INFO L273 TraceCheckUtils]: 46: Hoare triple {17252#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} assume i <= n * 4; {17252#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} is VALID [2019-01-31 14:35:22,228 INFO L273 TraceCheckUtils]: 45: Hoare triple {17259#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} assume a[i] != 23;i := i + 4; {17252#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} is VALID [2019-01-31 14:35:22,229 INFO L273 TraceCheckUtils]: 44: Hoare triple {17259#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} assume i <= n * 4; {17259#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} is VALID [2019-01-31 14:35:22,230 INFO L273 TraceCheckUtils]: 43: Hoare triple {17266#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {17259#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} is VALID [2019-01-31 14:35:22,231 INFO L273 TraceCheckUtils]: 42: Hoare triple {17266#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} assume i <= n * 4; {17266#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} is VALID [2019-01-31 14:35:22,232 INFO L273 TraceCheckUtils]: 41: Hoare triple {17273#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} assume a[i] != 23;i := i + 4; {17266#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} is VALID [2019-01-31 14:35:22,233 INFO L273 TraceCheckUtils]: 40: Hoare triple {17273#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} assume i <= n * 4; {17273#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} is VALID [2019-01-31 14:35:22,234 INFO L273 TraceCheckUtils]: 39: Hoare triple {17280#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} assume a[i] != 23;i := i + 4; {17273#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} is VALID [2019-01-31 14:35:22,235 INFO L273 TraceCheckUtils]: 38: Hoare triple {17280#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} assume i <= n * 4; {17280#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} is VALID [2019-01-31 14:35:22,236 INFO L273 TraceCheckUtils]: 37: Hoare triple {17287#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} assume a[i] != 23;i := i + 4; {17280#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} is VALID [2019-01-31 14:35:22,237 INFO L273 TraceCheckUtils]: 36: Hoare triple {17287#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} assume i <= n * 4; {17287#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} is VALID [2019-01-31 14:35:22,238 INFO L273 TraceCheckUtils]: 35: Hoare triple {17294#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} assume a[i] != 23;i := i + 4; {17287#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} is VALID [2019-01-31 14:35:22,239 INFO L273 TraceCheckUtils]: 34: Hoare triple {17294#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} assume i <= n * 4; {17294#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} is VALID [2019-01-31 14:35:22,240 INFO L273 TraceCheckUtils]: 33: Hoare triple {17301#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} assume a[i] != 23;i := i + 4; {17294#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} is VALID [2019-01-31 14:35:22,241 INFO L273 TraceCheckUtils]: 32: Hoare triple {17301#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} assume i <= n * 4; {17301#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} is VALID [2019-01-31 14:35:22,242 INFO L273 TraceCheckUtils]: 31: Hoare triple {17308#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} assume a[i] != 23;i := i + 4; {17301#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} is VALID [2019-01-31 14:35:22,243 INFO L273 TraceCheckUtils]: 30: Hoare triple {17308#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} assume i <= n * 4; {17308#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} is VALID [2019-01-31 14:35:22,244 INFO L273 TraceCheckUtils]: 29: Hoare triple {17315#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {17308#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} is VALID [2019-01-31 14:35:22,245 INFO L273 TraceCheckUtils]: 28: Hoare triple {17315#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} assume i <= n * 4; {17315#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} is VALID [2019-01-31 14:35:22,246 INFO L273 TraceCheckUtils]: 27: Hoare triple {17322#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {17315#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} is VALID [2019-01-31 14:35:22,247 INFO L273 TraceCheckUtils]: 26: Hoare triple {17322#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} assume i <= n * 4; {17322#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} is VALID [2019-01-31 14:35:22,248 INFO L273 TraceCheckUtils]: 25: Hoare triple {17329#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {17322#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} is VALID [2019-01-31 14:35:22,248 INFO L273 TraceCheckUtils]: 24: Hoare triple {17329#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} assume i <= n * 4; {17329#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} is VALID [2019-01-31 14:35:22,249 INFO L273 TraceCheckUtils]: 23: Hoare triple {17336#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} assume a[i] != 23;i := i + 4; {17329#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} is VALID [2019-01-31 14:35:22,250 INFO L273 TraceCheckUtils]: 22: Hoare triple {17336#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} assume i <= n * 4; {17336#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} is VALID [2019-01-31 14:35:22,251 INFO L273 TraceCheckUtils]: 21: Hoare triple {17343#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {17336#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} is VALID [2019-01-31 14:35:22,255 INFO L273 TraceCheckUtils]: 20: Hoare triple {17343#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} assume i <= n * 4; {17343#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} is VALID [2019-01-31 14:35:22,255 INFO L273 TraceCheckUtils]: 19: Hoare triple {17350#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} assume a[i] != 23;i := i + 4; {17343#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} is VALID [2019-01-31 14:35:22,257 INFO L273 TraceCheckUtils]: 18: Hoare triple {17350#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} assume i <= n * 4; {17350#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} is VALID [2019-01-31 14:35:22,257 INFO L273 TraceCheckUtils]: 17: Hoare triple {17357#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} assume a[i] != 23;i := i + 4; {17350#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} is VALID [2019-01-31 14:35:22,259 INFO L273 TraceCheckUtils]: 16: Hoare triple {17357#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} assume i <= n * 4; {17357#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} is VALID [2019-01-31 14:35:22,259 INFO L273 TraceCheckUtils]: 15: Hoare triple {17364#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} assume a[i] != 23;i := i + 4; {17357#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} is VALID [2019-01-31 14:35:22,260 INFO L273 TraceCheckUtils]: 14: Hoare triple {17364#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} assume i <= n * 4; {17364#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} is VALID [2019-01-31 14:35:22,261 INFO L273 TraceCheckUtils]: 13: Hoare triple {17371#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {17364#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} is VALID [2019-01-31 14:35:22,263 INFO L273 TraceCheckUtils]: 12: Hoare triple {17371#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} assume i <= n * 4; {17371#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} is VALID [2019-01-31 14:35:22,264 INFO L273 TraceCheckUtils]: 11: Hoare triple {17378#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {17371#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} is VALID [2019-01-31 14:35:22,265 INFO L273 TraceCheckUtils]: 10: Hoare triple {17378#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} assume i <= n * 4; {17378#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} is VALID [2019-01-31 14:35:22,266 INFO L273 TraceCheckUtils]: 9: Hoare triple {17385#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} assume a[i] != 23;i := i + 4; {17378#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} is VALID [2019-01-31 14:35:22,266 INFO L273 TraceCheckUtils]: 8: Hoare triple {17385#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} assume i <= n * 4; {17385#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} is VALID [2019-01-31 14:35:22,268 INFO L273 TraceCheckUtils]: 7: Hoare triple {17392#(or (< (* 4 main_n) (+ main_i 128)) (= (select main_a (+ main_i 128)) 23) (< (+ main_i 131) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {17385#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} is VALID [2019-01-31 14:35:22,268 INFO L273 TraceCheckUtils]: 6: Hoare triple {17392#(or (< (* 4 main_n) (+ main_i 128)) (= (select main_a (+ main_i 128)) 23) (< (+ main_i 131) (* 4 main_n)))} assume i <= n * 4; {17392#(or (< (* 4 main_n) (+ main_i 128)) (= (select main_a (+ main_i 128)) 23) (< (+ main_i 131) (* 4 main_n)))} is VALID [2019-01-31 14:35:22,269 INFO L273 TraceCheckUtils]: 5: Hoare triple {17399#(or (< (* 4 main_n) (+ main_i 132)) (< (+ main_i 135) (* 4 main_n)) (= (select main_a (+ main_i 132)) 23))} assume a[i] != 23;i := i + 4; {17392#(or (< (* 4 main_n) (+ main_i 128)) (= (select main_a (+ main_i 128)) 23) (< (+ main_i 131) (* 4 main_n)))} is VALID [2019-01-31 14:35:22,270 INFO L273 TraceCheckUtils]: 4: Hoare triple {17399#(or (< (* 4 main_n) (+ main_i 132)) (< (+ main_i 135) (* 4 main_n)) (= (select main_a (+ main_i 132)) 23))} assume i <= n * 4; {17399#(or (< (* 4 main_n) (+ main_i 132)) (< (+ main_i 135) (* 4 main_n)) (= (select main_a (+ main_i 132)) 23))} is VALID [2019-01-31 14:35:22,271 INFO L273 TraceCheckUtils]: 3: Hoare triple {17406#(or (< (+ main_i 139) (* 4 main_n)) (= (select main_a (+ main_i 136)) 23) (< (* 4 main_n) (+ main_i 136)))} assume a[i] != 23;i := i + 4; {17399#(or (< (* 4 main_n) (+ main_i 132)) (< (+ main_i 135) (* 4 main_n)) (= (select main_a (+ main_i 132)) 23))} is VALID [2019-01-31 14:35:22,271 INFO L273 TraceCheckUtils]: 2: Hoare triple {17406#(or (< (+ main_i 139) (* 4 main_n)) (= (select main_a (+ main_i 136)) 23) (< (* 4 main_n) (+ main_i 136)))} assume i <= n * 4; {17406#(or (< (+ main_i 139) (* 4 main_n)) (= (select main_a (+ main_i 136)) 23) (< (* 4 main_n) (+ main_i 136)))} is VALID [2019-01-31 14:35:22,272 INFO L273 TraceCheckUtils]: 1: Hoare triple {17413#(or (< (* 4 main_n) (+ main_i 140)) (< (+ main_i 143) (* 4 main_n)) (= (select main_a (+ main_i 140)) 23))} assume a[i] != 23;i := i + 4; {17406#(or (< (+ main_i 139) (* 4 main_n)) (= (select main_a (+ main_i 136)) 23) (< (* 4 main_n) (+ main_i 136)))} is VALID [2019-01-31 14:35:22,273 INFO L273 TraceCheckUtils]: 0: Hoare triple {16867#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {17413#(or (< (* 4 main_n) (+ main_i 140)) (< (+ main_i 143) (* 4 main_n)) (= (select main_a (+ main_i 140)) 23))} is VALID [2019-01-31 14:35:22,294 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 14:35:22,313 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-01-31 14:35:22,313 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [38, 38, 38] total 113 [2019-01-31 14:35:22,313 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-01-31 14:35:22,314 INFO L78 Accepts]: Start accepts. Automaton has 77 states. Word has length 73 [2019-01-31 14:35:22,314 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-01-31 14:35:22,314 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 77 states. [2019-01-31 14:35:22,491 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 145 edges. 145 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-01-31 14:35:22,491 INFO L459 AbstractCegarLoop]: Interpolant automaton has 77 states [2019-01-31 14:35:22,492 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 77 interpolants. [2019-01-31 14:35:22,492 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1642, Invalid=11468, Unknown=0, NotChecked=0, Total=13110 [2019-01-31 14:35:22,493 INFO L87 Difference]: Start difference. First operand 74 states and 74 transitions. Second operand 77 states. [2019-01-31 14:35:32,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 14:35:32,637 INFO L93 Difference]: Finished difference Result 78 states and 78 transitions. [2019-01-31 14:35:32,637 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2019-01-31 14:35:32,637 INFO L78 Accepts]: Start accepts. Automaton has 77 states. Word has length 73 [2019-01-31 14:35:32,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-31 14:35:32,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 77 states. [2019-01-31 14:35:32,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 78 transitions. [2019-01-31 14:35:32,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 77 states. [2019-01-31 14:35:32,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 78 transitions. [2019-01-31 14:35:32,639 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 40 states and 78 transitions. [2019-01-31 14:35:32,722 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 14:35:32,723 INFO L225 Difference]: With dead ends: 78 [2019-01-31 14:35:32,724 INFO L226 Difference]: Without dead ends: 77 [2019-01-31 14:35:32,724 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 182 GetRequests, 68 SyntacticMatches, 1 SemanticMatches, 113 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2960 ImplicationChecksByTransitivity, 8.0s TimeCoverageRelationStatistics Valid=1642, Invalid=11468, Unknown=0, NotChecked=0, Total=13110 [2019-01-31 14:35:32,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2019-01-31 14:35:32,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 76. [2019-01-31 14:35:32,793 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-01-31 14:35:32,793 INFO L82 GeneralOperation]: Start isEquivalent. First operand 77 states. Second operand 76 states. [2019-01-31 14:35:32,793 INFO L74 IsIncluded]: Start isIncluded. First operand 77 states. Second operand 76 states. [2019-01-31 14:35:32,794 INFO L87 Difference]: Start difference. First operand 77 states. Second operand 76 states. [2019-01-31 14:35:32,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 14:35:32,795 INFO L93 Difference]: Finished difference Result 77 states and 77 transitions. [2019-01-31 14:35:32,795 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 77 transitions. [2019-01-31 14:35:32,795 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-31 14:35:32,796 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-01-31 14:35:32,796 INFO L74 IsIncluded]: Start isIncluded. First operand 76 states. Second operand 77 states. [2019-01-31 14:35:32,796 INFO L87 Difference]: Start difference. First operand 76 states. Second operand 77 states. [2019-01-31 14:35:32,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 14:35:32,796 INFO L93 Difference]: Finished difference Result 77 states and 77 transitions. [2019-01-31 14:35:32,797 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 77 transitions. [2019-01-31 14:35:32,797 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-31 14:35:32,797 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-01-31 14:35:32,797 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-01-31 14:35:32,797 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-01-31 14:35:32,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76 states. [2019-01-31 14:35:32,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 76 transitions. [2019-01-31 14:35:32,798 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 76 transitions. Word has length 73 [2019-01-31 14:35:32,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-31 14:35:32,798 INFO L480 AbstractCegarLoop]: Abstraction has 76 states and 76 transitions. [2019-01-31 14:35:32,798 INFO L481 AbstractCegarLoop]: Interpolant automaton has 77 states. [2019-01-31 14:35:32,798 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 76 transitions. [2019-01-31 14:35:32,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2019-01-31 14:35:32,799 INFO L394 BasicCegarLoop]: Found error trace [2019-01-31 14:35:32,799 INFO L402 BasicCegarLoop]: trace histogram [37, 36, 1, 1] [2019-01-31 14:35:32,799 INFO L423 AbstractCegarLoop]: === Iteration 37 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-01-31 14:35:32,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-31 14:35:32,799 INFO L82 PathProgramCache]: Analyzing trace with hash 286704424, now seen corresponding path program 36 times [2019-01-31 14:35:32,799 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-01-31 14:35:32,800 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-31 14:35:32,800 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-01-31 14:35:32,800 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-31 14:35:32,800 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-01-31 14:35:32,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-31 14:35:34,881 INFO L273 TraceCheckUtils]: 0: Hoare triple {17799#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {17801#(and (or (<= main_i 0) (<= main_n 36)) (or (and (<= 0 main_i) (= 23 (select main_a (* 4 main_n)))) (< 36 main_n)))} is VALID [2019-01-31 14:35:34,882 INFO L273 TraceCheckUtils]: 1: Hoare triple {17801#(and (or (<= main_i 0) (<= main_n 36)) (or (and (<= 0 main_i) (= 23 (select main_a (* 4 main_n)))) (< 36 main_n)))} assume a[i] != 23;i := i + 4; {17802#(and (or (< 36 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i))) (or (<= main_i 4) (<= main_n 36)))} is VALID [2019-01-31 14:35:34,883 INFO L273 TraceCheckUtils]: 2: Hoare triple {17802#(and (or (< 36 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i))) (or (<= main_i 4) (<= main_n 36)))} assume i <= n * 4; {17802#(and (or (< 36 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i))) (or (<= main_i 4) (<= main_n 36)))} is VALID [2019-01-31 14:35:34,884 INFO L273 TraceCheckUtils]: 3: Hoare triple {17802#(and (or (< 36 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i))) (or (<= main_i 4) (<= main_n 36)))} assume a[i] != 23;i := i + 4; {17803#(and (or (<= main_i 8) (<= main_n 36)) (or (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n)))) (< 36 main_n)))} is VALID [2019-01-31 14:35:34,885 INFO L273 TraceCheckUtils]: 4: Hoare triple {17803#(and (or (<= main_i 8) (<= main_n 36)) (or (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n)))) (< 36 main_n)))} assume i <= n * 4; {17803#(and (or (<= main_i 8) (<= main_n 36)) (or (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n)))) (< 36 main_n)))} is VALID [2019-01-31 14:35:34,886 INFO L273 TraceCheckUtils]: 5: Hoare triple {17803#(and (or (<= main_i 8) (<= main_n 36)) (or (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n)))) (< 36 main_n)))} assume a[i] != 23;i := i + 4; {17804#(and (or (<= main_n 36) (<= main_i 12)) (or (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n)))) (< 36 main_n)))} is VALID [2019-01-31 14:35:34,887 INFO L273 TraceCheckUtils]: 6: Hoare triple {17804#(and (or (<= main_n 36) (<= main_i 12)) (or (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n)))) (< 36 main_n)))} assume i <= n * 4; {17804#(and (or (<= main_n 36) (<= main_i 12)) (or (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n)))) (< 36 main_n)))} is VALID [2019-01-31 14:35:34,888 INFO L273 TraceCheckUtils]: 7: Hoare triple {17804#(and (or (<= main_n 36) (<= main_i 12)) (or (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n)))) (< 36 main_n)))} assume a[i] != 23;i := i + 4; {17805#(and (or (<= main_i 16) (<= main_n 36)) (or (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n)))) (< 36 main_n)))} is VALID [2019-01-31 14:35:34,888 INFO L273 TraceCheckUtils]: 8: Hoare triple {17805#(and (or (<= main_i 16) (<= main_n 36)) (or (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n)))) (< 36 main_n)))} assume i <= n * 4; {17805#(and (or (<= main_i 16) (<= main_n 36)) (or (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n)))) (< 36 main_n)))} is VALID [2019-01-31 14:35:34,890 INFO L273 TraceCheckUtils]: 9: Hoare triple {17805#(and (or (<= main_i 16) (<= main_n 36)) (or (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n)))) (< 36 main_n)))} assume a[i] != 23;i := i + 4; {17806#(and (or (< 36 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 20) (<= main_n 36)))} is VALID [2019-01-31 14:35:34,890 INFO L273 TraceCheckUtils]: 10: Hoare triple {17806#(and (or (< 36 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 20) (<= main_n 36)))} assume i <= n * 4; {17806#(and (or (< 36 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 20) (<= main_n 36)))} is VALID [2019-01-31 14:35:34,891 INFO L273 TraceCheckUtils]: 11: Hoare triple {17806#(and (or (< 36 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 20) (<= main_n 36)))} assume a[i] != 23;i := i + 4; {17807#(and (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 36 main_n)) (or (<= main_i 24) (<= main_n 36)))} is VALID [2019-01-31 14:35:34,892 INFO L273 TraceCheckUtils]: 12: Hoare triple {17807#(and (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 36 main_n)) (or (<= main_i 24) (<= main_n 36)))} assume i <= n * 4; {17807#(and (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 36 main_n)) (or (<= main_i 24) (<= main_n 36)))} is VALID [2019-01-31 14:35:34,893 INFO L273 TraceCheckUtils]: 13: Hoare triple {17807#(and (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 36 main_n)) (or (<= main_i 24) (<= main_n 36)))} assume a[i] != 23;i := i + 4; {17808#(and (or (<= main_n 36) (<= main_i 28)) (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 36 main_n)))} is VALID [2019-01-31 14:35:34,894 INFO L273 TraceCheckUtils]: 14: Hoare triple {17808#(and (or (<= main_n 36) (<= main_i 28)) (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 36 main_n)))} assume i <= n * 4; {17808#(and (or (<= main_n 36) (<= main_i 28)) (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 36 main_n)))} is VALID [2019-01-31 14:35:34,895 INFO L273 TraceCheckUtils]: 15: Hoare triple {17808#(and (or (<= main_n 36) (<= main_i 28)) (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 36 main_n)))} assume a[i] != 23;i := i + 4; {17809#(and (or (<= main_i 32) (<= main_n 36)) (or (< 36 main_n) (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:35:34,896 INFO L273 TraceCheckUtils]: 16: Hoare triple {17809#(and (or (<= main_i 32) (<= main_n 36)) (or (< 36 main_n) (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {17809#(and (or (<= main_i 32) (<= main_n 36)) (or (< 36 main_n) (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:35:34,897 INFO L273 TraceCheckUtils]: 17: Hoare triple {17809#(and (or (<= main_i 32) (<= main_n 36)) (or (< 36 main_n) (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {17810#(and (or (<= main_i 36) (<= main_n 36)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i)) (< 36 main_n)))} is VALID [2019-01-31 14:35:34,897 INFO L273 TraceCheckUtils]: 18: Hoare triple {17810#(and (or (<= main_i 36) (<= main_n 36)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i)) (< 36 main_n)))} assume i <= n * 4; {17810#(and (or (<= main_i 36) (<= main_n 36)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i)) (< 36 main_n)))} is VALID [2019-01-31 14:35:34,898 INFO L273 TraceCheckUtils]: 19: Hoare triple {17810#(and (or (<= main_i 36) (<= main_n 36)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i)) (< 36 main_n)))} assume a[i] != 23;i := i + 4; {17811#(and (or (<= main_i 40) (<= main_n 36)) (or (< 36 main_n) (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:35:34,899 INFO L273 TraceCheckUtils]: 20: Hoare triple {17811#(and (or (<= main_i 40) (<= main_n 36)) (or (< 36 main_n) (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {17811#(and (or (<= main_i 40) (<= main_n 36)) (or (< 36 main_n) (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:35:34,900 INFO L273 TraceCheckUtils]: 21: Hoare triple {17811#(and (or (<= main_i 40) (<= main_n 36)) (or (< 36 main_n) (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {17812#(and (or (<= main_n 36) (<= main_i 44)) (or (< 36 main_n) (and (<= 44 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:35:34,901 INFO L273 TraceCheckUtils]: 22: Hoare triple {17812#(and (or (<= main_n 36) (<= main_i 44)) (or (< 36 main_n) (and (<= 44 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {17812#(and (or (<= main_n 36) (<= main_i 44)) (or (< 36 main_n) (and (<= 44 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:35:34,902 INFO L273 TraceCheckUtils]: 23: Hoare triple {17812#(and (or (<= main_n 36) (<= main_i 44)) (or (< 36 main_n) (and (<= 44 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {17813#(and (or (<= main_i 48) (<= main_n 36)) (or (and (<= 48 main_i) (= 23 (select main_a (* 4 main_n)))) (< 36 main_n)))} is VALID [2019-01-31 14:35:34,903 INFO L273 TraceCheckUtils]: 24: Hoare triple {17813#(and (or (<= main_i 48) (<= main_n 36)) (or (and (<= 48 main_i) (= 23 (select main_a (* 4 main_n)))) (< 36 main_n)))} assume i <= n * 4; {17813#(and (or (<= main_i 48) (<= main_n 36)) (or (and (<= 48 main_i) (= 23 (select main_a (* 4 main_n)))) (< 36 main_n)))} is VALID [2019-01-31 14:35:34,904 INFO L273 TraceCheckUtils]: 25: Hoare triple {17813#(and (or (<= main_i 48) (<= main_n 36)) (or (and (<= 48 main_i) (= 23 (select main_a (* 4 main_n)))) (< 36 main_n)))} assume a[i] != 23;i := i + 4; {17814#(and (or (and (<= 52 main_i) (= 23 (select main_a (* 4 main_n)))) (< 36 main_n)) (or (<= main_i 52) (<= main_n 36)))} is VALID [2019-01-31 14:35:34,905 INFO L273 TraceCheckUtils]: 26: Hoare triple {17814#(and (or (and (<= 52 main_i) (= 23 (select main_a (* 4 main_n)))) (< 36 main_n)) (or (<= main_i 52) (<= main_n 36)))} assume i <= n * 4; {17814#(and (or (and (<= 52 main_i) (= 23 (select main_a (* 4 main_n)))) (< 36 main_n)) (or (<= main_i 52) (<= main_n 36)))} is VALID [2019-01-31 14:35:34,906 INFO L273 TraceCheckUtils]: 27: Hoare triple {17814#(and (or (and (<= 52 main_i) (= 23 (select main_a (* 4 main_n)))) (< 36 main_n)) (or (<= main_i 52) (<= main_n 36)))} assume a[i] != 23;i := i + 4; {17815#(and (or (< 36 main_n) (and (<= 56 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 56) (<= main_n 36)))} is VALID [2019-01-31 14:35:34,906 INFO L273 TraceCheckUtils]: 28: Hoare triple {17815#(and (or (< 36 main_n) (and (<= 56 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 56) (<= main_n 36)))} assume i <= n * 4; {17815#(and (or (< 36 main_n) (and (<= 56 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 56) (<= main_n 36)))} is VALID [2019-01-31 14:35:34,908 INFO L273 TraceCheckUtils]: 29: Hoare triple {17815#(and (or (< 36 main_n) (and (<= 56 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 56) (<= main_n 36)))} assume a[i] != 23;i := i + 4; {17816#(and (or (<= main_i 60) (<= main_n 36)) (or (< 36 main_n) (and (<= 60 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:35:34,908 INFO L273 TraceCheckUtils]: 30: Hoare triple {17816#(and (or (<= main_i 60) (<= main_n 36)) (or (< 36 main_n) (and (<= 60 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {17816#(and (or (<= main_i 60) (<= main_n 36)) (or (< 36 main_n) (and (<= 60 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:35:34,909 INFO L273 TraceCheckUtils]: 31: Hoare triple {17816#(and (or (<= main_i 60) (<= main_n 36)) (or (< 36 main_n) (and (<= 60 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {17817#(and (or (<= main_i 64) (<= main_n 36)) (or (and (<= 64 main_i) (= 23 (select main_a (* 4 main_n)))) (< 36 main_n)))} is VALID [2019-01-31 14:35:34,910 INFO L273 TraceCheckUtils]: 32: Hoare triple {17817#(and (or (<= main_i 64) (<= main_n 36)) (or (and (<= 64 main_i) (= 23 (select main_a (* 4 main_n)))) (< 36 main_n)))} assume i <= n * 4; {17817#(and (or (<= main_i 64) (<= main_n 36)) (or (and (<= 64 main_i) (= 23 (select main_a (* 4 main_n)))) (< 36 main_n)))} is VALID [2019-01-31 14:35:34,911 INFO L273 TraceCheckUtils]: 33: Hoare triple {17817#(and (or (<= main_i 64) (<= main_n 36)) (or (and (<= 64 main_i) (= 23 (select main_a (* 4 main_n)))) (< 36 main_n)))} assume a[i] != 23;i := i + 4; {17818#(and (or (<= main_n 36) (<= main_i 68)) (or (and (<= 68 main_i) (= 23 (select main_a (* 4 main_n)))) (< 36 main_n)))} is VALID [2019-01-31 14:35:34,912 INFO L273 TraceCheckUtils]: 34: Hoare triple {17818#(and (or (<= main_n 36) (<= main_i 68)) (or (and (<= 68 main_i) (= 23 (select main_a (* 4 main_n)))) (< 36 main_n)))} assume i <= n * 4; {17818#(and (or (<= main_n 36) (<= main_i 68)) (or (and (<= 68 main_i) (= 23 (select main_a (* 4 main_n)))) (< 36 main_n)))} is VALID [2019-01-31 14:35:34,913 INFO L273 TraceCheckUtils]: 35: Hoare triple {17818#(and (or (<= main_n 36) (<= main_i 68)) (or (and (<= 68 main_i) (= 23 (select main_a (* 4 main_n)))) (< 36 main_n)))} assume a[i] != 23;i := i + 4; {17819#(and (or (and (<= 72 main_i) (= 23 (select main_a (* 4 main_n)))) (< 36 main_n)) (or (<= main_i 72) (<= main_n 36)))} is VALID [2019-01-31 14:35:34,914 INFO L273 TraceCheckUtils]: 36: Hoare triple {17819#(and (or (and (<= 72 main_i) (= 23 (select main_a (* 4 main_n)))) (< 36 main_n)) (or (<= main_i 72) (<= main_n 36)))} assume i <= n * 4; {17819#(and (or (and (<= 72 main_i) (= 23 (select main_a (* 4 main_n)))) (< 36 main_n)) (or (<= main_i 72) (<= main_n 36)))} is VALID [2019-01-31 14:35:34,915 INFO L273 TraceCheckUtils]: 37: Hoare triple {17819#(and (or (and (<= 72 main_i) (= 23 (select main_a (* 4 main_n)))) (< 36 main_n)) (or (<= main_i 72) (<= main_n 36)))} assume a[i] != 23;i := i + 4; {17820#(and (or (<= main_i 76) (<= main_n 36)) (or (and (<= 76 main_i) (= 23 (select main_a (* 4 main_n)))) (< 36 main_n)))} is VALID [2019-01-31 14:35:34,916 INFO L273 TraceCheckUtils]: 38: Hoare triple {17820#(and (or (<= main_i 76) (<= main_n 36)) (or (and (<= 76 main_i) (= 23 (select main_a (* 4 main_n)))) (< 36 main_n)))} assume i <= n * 4; {17820#(and (or (<= main_i 76) (<= main_n 36)) (or (and (<= 76 main_i) (= 23 (select main_a (* 4 main_n)))) (< 36 main_n)))} is VALID [2019-01-31 14:35:34,917 INFO L273 TraceCheckUtils]: 39: Hoare triple {17820#(and (or (<= main_i 76) (<= main_n 36)) (or (and (<= 76 main_i) (= 23 (select main_a (* 4 main_n)))) (< 36 main_n)))} assume a[i] != 23;i := i + 4; {17821#(and (or (and (<= 80 main_i) (= 23 (select main_a (* 4 main_n)))) (< 36 main_n)) (or (<= main_i 80) (<= main_n 36)))} is VALID [2019-01-31 14:35:34,917 INFO L273 TraceCheckUtils]: 40: Hoare triple {17821#(and (or (and (<= 80 main_i) (= 23 (select main_a (* 4 main_n)))) (< 36 main_n)) (or (<= main_i 80) (<= main_n 36)))} assume i <= n * 4; {17821#(and (or (and (<= 80 main_i) (= 23 (select main_a (* 4 main_n)))) (< 36 main_n)) (or (<= main_i 80) (<= main_n 36)))} is VALID [2019-01-31 14:35:34,918 INFO L273 TraceCheckUtils]: 41: Hoare triple {17821#(and (or (and (<= 80 main_i) (= 23 (select main_a (* 4 main_n)))) (< 36 main_n)) (or (<= main_i 80) (<= main_n 36)))} assume a[i] != 23;i := i + 4; {17822#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 84 main_i)) (< 36 main_n)) (or (<= main_i 84) (<= main_n 36)))} is VALID [2019-01-31 14:35:34,919 INFO L273 TraceCheckUtils]: 42: Hoare triple {17822#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 84 main_i)) (< 36 main_n)) (or (<= main_i 84) (<= main_n 36)))} assume i <= n * 4; {17822#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 84 main_i)) (< 36 main_n)) (or (<= main_i 84) (<= main_n 36)))} is VALID [2019-01-31 14:35:34,920 INFO L273 TraceCheckUtils]: 43: Hoare triple {17822#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 84 main_i)) (< 36 main_n)) (or (<= main_i 84) (<= main_n 36)))} assume a[i] != 23;i := i + 4; {17823#(and (or (<= main_i 88) (<= main_n 36)) (or (and (<= 88 main_i) (= 23 (select main_a (* 4 main_n)))) (< 36 main_n)))} is VALID [2019-01-31 14:35:34,921 INFO L273 TraceCheckUtils]: 44: Hoare triple {17823#(and (or (<= main_i 88) (<= main_n 36)) (or (and (<= 88 main_i) (= 23 (select main_a (* 4 main_n)))) (< 36 main_n)))} assume i <= n * 4; {17823#(and (or (<= main_i 88) (<= main_n 36)) (or (and (<= 88 main_i) (= 23 (select main_a (* 4 main_n)))) (< 36 main_n)))} is VALID [2019-01-31 14:35:34,922 INFO L273 TraceCheckUtils]: 45: Hoare triple {17823#(and (or (<= main_i 88) (<= main_n 36)) (or (and (<= 88 main_i) (= 23 (select main_a (* 4 main_n)))) (< 36 main_n)))} assume a[i] != 23;i := i + 4; {17824#(and (or (<= main_i 92) (<= main_n 36)) (or (< 36 main_n) (and (<= 92 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:35:34,923 INFO L273 TraceCheckUtils]: 46: Hoare triple {17824#(and (or (<= main_i 92) (<= main_n 36)) (or (< 36 main_n) (and (<= 92 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {17824#(and (or (<= main_i 92) (<= main_n 36)) (or (< 36 main_n) (and (<= 92 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:35:34,924 INFO L273 TraceCheckUtils]: 47: Hoare triple {17824#(and (or (<= main_i 92) (<= main_n 36)) (or (< 36 main_n) (and (<= 92 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {17825#(and (or (and (<= 96 main_i) (= 23 (select main_a (* 4 main_n)))) (< 36 main_n)) (or (<= main_i 96) (<= main_n 36)))} is VALID [2019-01-31 14:35:34,925 INFO L273 TraceCheckUtils]: 48: Hoare triple {17825#(and (or (and (<= 96 main_i) (= 23 (select main_a (* 4 main_n)))) (< 36 main_n)) (or (<= main_i 96) (<= main_n 36)))} assume i <= n * 4; {17825#(and (or (and (<= 96 main_i) (= 23 (select main_a (* 4 main_n)))) (< 36 main_n)) (or (<= main_i 96) (<= main_n 36)))} is VALID [2019-01-31 14:35:34,926 INFO L273 TraceCheckUtils]: 49: Hoare triple {17825#(and (or (and (<= 96 main_i) (= 23 (select main_a (* 4 main_n)))) (< 36 main_n)) (or (<= main_i 96) (<= main_n 36)))} assume a[i] != 23;i := i + 4; {17826#(and (or (<= main_i 100) (<= main_n 36)) (or (and (<= 100 main_i) (= 23 (select main_a (* 4 main_n)))) (< 36 main_n)))} is VALID [2019-01-31 14:35:34,927 INFO L273 TraceCheckUtils]: 50: Hoare triple {17826#(and (or (<= main_i 100) (<= main_n 36)) (or (and (<= 100 main_i) (= 23 (select main_a (* 4 main_n)))) (< 36 main_n)))} assume i <= n * 4; {17826#(and (or (<= main_i 100) (<= main_n 36)) (or (and (<= 100 main_i) (= 23 (select main_a (* 4 main_n)))) (< 36 main_n)))} is VALID [2019-01-31 14:35:34,928 INFO L273 TraceCheckUtils]: 51: Hoare triple {17826#(and (or (<= main_i 100) (<= main_n 36)) (or (and (<= 100 main_i) (= 23 (select main_a (* 4 main_n)))) (< 36 main_n)))} assume a[i] != 23;i := i + 4; {17827#(and (or (<= main_i 104) (<= main_n 36)) (or (and (<= 104 main_i) (= 23 (select main_a (* 4 main_n)))) (< 36 main_n)))} is VALID [2019-01-31 14:35:34,928 INFO L273 TraceCheckUtils]: 52: Hoare triple {17827#(and (or (<= main_i 104) (<= main_n 36)) (or (and (<= 104 main_i) (= 23 (select main_a (* 4 main_n)))) (< 36 main_n)))} assume i <= n * 4; {17827#(and (or (<= main_i 104) (<= main_n 36)) (or (and (<= 104 main_i) (= 23 (select main_a (* 4 main_n)))) (< 36 main_n)))} is VALID [2019-01-31 14:35:34,930 INFO L273 TraceCheckUtils]: 53: Hoare triple {17827#(and (or (<= main_i 104) (<= main_n 36)) (or (and (<= 104 main_i) (= 23 (select main_a (* 4 main_n)))) (< 36 main_n)))} assume a[i] != 23;i := i + 4; {17828#(and (or (<= main_i 108) (<= main_n 36)) (or (and (<= 108 main_i) (= 23 (select main_a (* 4 main_n)))) (< 36 main_n)))} is VALID [2019-01-31 14:35:34,930 INFO L273 TraceCheckUtils]: 54: Hoare triple {17828#(and (or (<= main_i 108) (<= main_n 36)) (or (and (<= 108 main_i) (= 23 (select main_a (* 4 main_n)))) (< 36 main_n)))} assume i <= n * 4; {17828#(and (or (<= main_i 108) (<= main_n 36)) (or (and (<= 108 main_i) (= 23 (select main_a (* 4 main_n)))) (< 36 main_n)))} is VALID [2019-01-31 14:35:34,931 INFO L273 TraceCheckUtils]: 55: Hoare triple {17828#(and (or (<= main_i 108) (<= main_n 36)) (or (and (<= 108 main_i) (= 23 (select main_a (* 4 main_n)))) (< 36 main_n)))} assume a[i] != 23;i := i + 4; {17829#(and (or (<= main_n 36) (<= main_i 112)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 112 main_i)) (< 36 main_n)))} is VALID [2019-01-31 14:35:34,932 INFO L273 TraceCheckUtils]: 56: Hoare triple {17829#(and (or (<= main_n 36) (<= main_i 112)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 112 main_i)) (< 36 main_n)))} assume i <= n * 4; {17829#(and (or (<= main_n 36) (<= main_i 112)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 112 main_i)) (< 36 main_n)))} is VALID [2019-01-31 14:35:34,933 INFO L273 TraceCheckUtils]: 57: Hoare triple {17829#(and (or (<= main_n 36) (<= main_i 112)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 112 main_i)) (< 36 main_n)))} assume a[i] != 23;i := i + 4; {17830#(and (or (< 36 main_n) (and (<= 116 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 116) (<= main_n 36)))} is VALID [2019-01-31 14:35:34,934 INFO L273 TraceCheckUtils]: 58: Hoare triple {17830#(and (or (< 36 main_n) (and (<= 116 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 116) (<= main_n 36)))} assume i <= n * 4; {17830#(and (or (< 36 main_n) (and (<= 116 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 116) (<= main_n 36)))} is VALID [2019-01-31 14:35:34,935 INFO L273 TraceCheckUtils]: 59: Hoare triple {17830#(and (or (< 36 main_n) (and (<= 116 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 116) (<= main_n 36)))} assume a[i] != 23;i := i + 4; {17831#(and (or (<= main_i 120) (<= main_n 36)) (or (< 36 main_n) (and (<= 120 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:35:34,936 INFO L273 TraceCheckUtils]: 60: Hoare triple {17831#(and (or (<= main_i 120) (<= main_n 36)) (or (< 36 main_n) (and (<= 120 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {17831#(and (or (<= main_i 120) (<= main_n 36)) (or (< 36 main_n) (and (<= 120 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:35:34,937 INFO L273 TraceCheckUtils]: 61: Hoare triple {17831#(and (or (<= main_i 120) (<= main_n 36)) (or (< 36 main_n) (and (<= 120 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {17832#(and (or (and (<= 124 main_i) (= 23 (select main_a (* 4 main_n)))) (< 36 main_n)) (or (<= main_i 124) (<= main_n 36)))} is VALID [2019-01-31 14:35:34,938 INFO L273 TraceCheckUtils]: 62: Hoare triple {17832#(and (or (and (<= 124 main_i) (= 23 (select main_a (* 4 main_n)))) (< 36 main_n)) (or (<= main_i 124) (<= main_n 36)))} assume i <= n * 4; {17832#(and (or (and (<= 124 main_i) (= 23 (select main_a (* 4 main_n)))) (< 36 main_n)) (or (<= main_i 124) (<= main_n 36)))} is VALID [2019-01-31 14:35:34,939 INFO L273 TraceCheckUtils]: 63: Hoare triple {17832#(and (or (and (<= 124 main_i) (= 23 (select main_a (* 4 main_n)))) (< 36 main_n)) (or (<= main_i 124) (<= main_n 36)))} assume a[i] != 23;i := i + 4; {17833#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 128 main_i)) (< 36 main_n)) (or (<= main_i 128) (<= main_n 36)))} is VALID [2019-01-31 14:35:34,940 INFO L273 TraceCheckUtils]: 64: Hoare triple {17833#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 128 main_i)) (< 36 main_n)) (or (<= main_i 128) (<= main_n 36)))} assume i <= n * 4; {17833#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 128 main_i)) (< 36 main_n)) (or (<= main_i 128) (<= main_n 36)))} is VALID [2019-01-31 14:35:34,941 INFO L273 TraceCheckUtils]: 65: Hoare triple {17833#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 128 main_i)) (< 36 main_n)) (or (<= main_i 128) (<= main_n 36)))} assume a[i] != 23;i := i + 4; {17834#(and (or (< 36 main_n) (and (<= 132 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 132) (<= main_n 36)))} is VALID [2019-01-31 14:35:34,942 INFO L273 TraceCheckUtils]: 66: Hoare triple {17834#(and (or (< 36 main_n) (and (<= 132 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 132) (<= main_n 36)))} assume i <= n * 4; {17834#(and (or (< 36 main_n) (and (<= 132 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 132) (<= main_n 36)))} is VALID [2019-01-31 14:35:34,943 INFO L273 TraceCheckUtils]: 67: Hoare triple {17834#(and (or (< 36 main_n) (and (<= 132 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 132) (<= main_n 36)))} assume a[i] != 23;i := i + 4; {17835#(and (or (< 36 main_n) (and (<= 136 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 136) (<= main_n 36)))} is VALID [2019-01-31 14:35:34,943 INFO L273 TraceCheckUtils]: 68: Hoare triple {17835#(and (or (< 36 main_n) (and (<= 136 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 136) (<= main_n 36)))} assume i <= n * 4; {17835#(and (or (< 36 main_n) (and (<= 136 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 136) (<= main_n 36)))} is VALID [2019-01-31 14:35:34,945 INFO L273 TraceCheckUtils]: 69: Hoare triple {17835#(and (or (< 36 main_n) (and (<= 136 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 136) (<= main_n 36)))} assume a[i] != 23;i := i + 4; {17836#(and (or (< 36 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 140 main_i))) (or (<= main_n 36) (<= main_i 140)))} is VALID [2019-01-31 14:35:34,945 INFO L273 TraceCheckUtils]: 70: Hoare triple {17836#(and (or (< 36 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 140 main_i))) (or (<= main_n 36) (<= main_i 140)))} assume i <= n * 4; {17836#(and (or (< 36 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 140 main_i))) (or (<= main_n 36) (<= main_i 140)))} is VALID [2019-01-31 14:35:34,947 INFO L273 TraceCheckUtils]: 71: Hoare triple {17836#(and (or (< 36 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 140 main_i))) (or (<= main_n 36) (<= main_i 140)))} assume a[i] != 23;i := i + 4; {17837#(and (or (and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (<= (* 4 main_n) main_i)) (< 36 main_n)) (or (<= main_n 36) (<= main_i 144)))} is VALID [2019-01-31 14:35:34,948 INFO L273 TraceCheckUtils]: 72: Hoare triple {17837#(and (or (and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (<= (* 4 main_n) main_i)) (< 36 main_n)) (or (<= main_n 36) (<= main_i 144)))} assume i <= n * 4; {17838#(and (or (< 36 main_n) (and (<= (* 4 main_n) main_i) (<= main_i (* 4 main_n)) (= 23 (select main_a main_i)))) (<= main_i 144))} is VALID [2019-01-31 14:35:34,949 INFO L273 TraceCheckUtils]: 73: Hoare triple {17838#(and (or (< 36 main_n) (and (<= (* 4 main_n) main_i) (<= main_i (* 4 main_n)) (= 23 (select main_a main_i)))) (<= main_i 144))} assume a[i] != 23;i := i + 4; {17839#(and (< 36 main_n) (<= main_i 148))} is VALID [2019-01-31 14:35:34,949 INFO L273 TraceCheckUtils]: 74: Hoare triple {17839#(and (< 36 main_n) (<= main_i 148))} assume !(i <= n * 4); {17800#false} is VALID [2019-01-31 14:35:34,975 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 14:35:34,976 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-31 14:35:34,976 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-01-31 14:35:34,976 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-01-31 14:35:34,976 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-01-31 14:35:34,976 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-31 14:35:34,976 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 14:35:34,987 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2019-01-31 14:35:34,987 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder TERMS_WITH_SMALL_CONSTANTS_FIRST (IT: FPandBP) [2019-01-31 14:35:35,009 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-01-31 14:35:35,009 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-01-31 14:35:35,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-31 14:35:35,023 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-31 14:35:35,036 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 14:35:35,038 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-01-31 14:35:35,044 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-31 14:35:35,044 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2019-01-31 14:35:35,046 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-01-31 14:35:35,046 WARN L398 uantifierElimination]: Input elimination task: ∃ [v_main_a_40]. (and (= (store v_main_a_40 (* 4 main_n) 23) main_a) (= main_i 0)) [2019-01-31 14:35:35,046 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2019-01-31 14:35:37,489 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2019-01-31 14:35:37,491 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-01-31 14:35:37,504 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-31 14:35:37,504 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2019-01-31 14:35:37,505 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-01-31 14:35:37,506 WARN L398 uantifierElimination]: Input elimination task: ∃ [main_a]. (let ((.cse0 (* 4 main_n))) (and (not (= (select main_a 144) 23)) (<= 144 .cse0) (= 23 (select main_a .cse0)) (<= main_i 148))) [2019-01-31 14:35:37,506 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (let ((.cse0 (* 4 main_n))) (and (not (= 144 .cse0)) (<= 144 .cse0) (<= main_i 148))) [2019-01-31 14:35:37,641 INFO L273 TraceCheckUtils]: 0: Hoare triple {17799#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {17843#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:35:37,641 INFO L273 TraceCheckUtils]: 1: Hoare triple {17843#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {17847#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2019-01-31 14:35:37,642 INFO L273 TraceCheckUtils]: 2: Hoare triple {17847#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume i <= n * 4; {17847#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2019-01-31 14:35:37,642 INFO L273 TraceCheckUtils]: 3: Hoare triple {17847#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume a[i] != 23;i := i + 4; {17854#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:35:37,643 INFO L273 TraceCheckUtils]: 4: Hoare triple {17854#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {17854#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:35:37,643 INFO L273 TraceCheckUtils]: 5: Hoare triple {17854#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {17861#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2019-01-31 14:35:37,644 INFO L273 TraceCheckUtils]: 6: Hoare triple {17861#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume i <= n * 4; {17861#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2019-01-31 14:35:37,645 INFO L273 TraceCheckUtils]: 7: Hoare triple {17861#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume a[i] != 23;i := i + 4; {17868#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:35:37,646 INFO L273 TraceCheckUtils]: 8: Hoare triple {17868#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {17868#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:35:37,646 INFO L273 TraceCheckUtils]: 9: Hoare triple {17868#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {17875#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:35:37,647 INFO L273 TraceCheckUtils]: 10: Hoare triple {17875#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {17875#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:35:37,648 INFO L273 TraceCheckUtils]: 11: Hoare triple {17875#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {17882#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:35:37,648 INFO L273 TraceCheckUtils]: 12: Hoare triple {17882#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {17882#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:35:37,649 INFO L273 TraceCheckUtils]: 13: Hoare triple {17882#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {17889#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:35:37,650 INFO L273 TraceCheckUtils]: 14: Hoare triple {17889#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {17889#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:35:37,651 INFO L273 TraceCheckUtils]: 15: Hoare triple {17889#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {17896#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:35:37,651 INFO L273 TraceCheckUtils]: 16: Hoare triple {17896#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {17896#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:35:37,652 INFO L273 TraceCheckUtils]: 17: Hoare triple {17896#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {17903#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:35:37,653 INFO L273 TraceCheckUtils]: 18: Hoare triple {17903#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {17903#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:35:37,654 INFO L273 TraceCheckUtils]: 19: Hoare triple {17903#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {17910#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:35:37,654 INFO L273 TraceCheckUtils]: 20: Hoare triple {17910#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {17910#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:35:37,655 INFO L273 TraceCheckUtils]: 21: Hoare triple {17910#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {17917#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:35:37,656 INFO L273 TraceCheckUtils]: 22: Hoare triple {17917#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {17917#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:35:37,656 INFO L273 TraceCheckUtils]: 23: Hoare triple {17917#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {17924#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:35:37,657 INFO L273 TraceCheckUtils]: 24: Hoare triple {17924#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {17924#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:35:37,658 INFO L273 TraceCheckUtils]: 25: Hoare triple {17924#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {17931#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:35:37,658 INFO L273 TraceCheckUtils]: 26: Hoare triple {17931#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {17931#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:35:37,659 INFO L273 TraceCheckUtils]: 27: Hoare triple {17931#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {17938#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:35:37,660 INFO L273 TraceCheckUtils]: 28: Hoare triple {17938#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {17938#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:35:37,661 INFO L273 TraceCheckUtils]: 29: Hoare triple {17938#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {17945#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:35:37,661 INFO L273 TraceCheckUtils]: 30: Hoare triple {17945#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {17945#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:35:37,662 INFO L273 TraceCheckUtils]: 31: Hoare triple {17945#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {17952#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:35:37,663 INFO L273 TraceCheckUtils]: 32: Hoare triple {17952#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {17952#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:35:37,663 INFO L273 TraceCheckUtils]: 33: Hoare triple {17952#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {17959#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:35:37,664 INFO L273 TraceCheckUtils]: 34: Hoare triple {17959#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {17959#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:35:37,665 INFO L273 TraceCheckUtils]: 35: Hoare triple {17959#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {17966#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:35:37,666 INFO L273 TraceCheckUtils]: 36: Hoare triple {17966#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {17966#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:35:37,666 INFO L273 TraceCheckUtils]: 37: Hoare triple {17966#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {17973#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:35:37,667 INFO L273 TraceCheckUtils]: 38: Hoare triple {17973#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {17973#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:35:37,668 INFO L273 TraceCheckUtils]: 39: Hoare triple {17973#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {17980#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} is VALID [2019-01-31 14:35:37,668 INFO L273 TraceCheckUtils]: 40: Hoare triple {17980#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} assume i <= n * 4; {17980#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} is VALID [2019-01-31 14:35:37,669 INFO L273 TraceCheckUtils]: 41: Hoare triple {17980#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} assume a[i] != 23;i := i + 4; {17987#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:35:37,670 INFO L273 TraceCheckUtils]: 42: Hoare triple {17987#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {17987#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:35:37,671 INFO L273 TraceCheckUtils]: 43: Hoare triple {17987#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {17994#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:35:37,671 INFO L273 TraceCheckUtils]: 44: Hoare triple {17994#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {17994#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:35:37,672 INFO L273 TraceCheckUtils]: 45: Hoare triple {17994#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {18001#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:35:37,673 INFO L273 TraceCheckUtils]: 46: Hoare triple {18001#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {18001#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:35:37,674 INFO L273 TraceCheckUtils]: 47: Hoare triple {18001#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {18008#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:35:37,674 INFO L273 TraceCheckUtils]: 48: Hoare triple {18008#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {18008#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:35:37,675 INFO L273 TraceCheckUtils]: 49: Hoare triple {18008#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {18015#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:35:37,676 INFO L273 TraceCheckUtils]: 50: Hoare triple {18015#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {18015#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:35:37,676 INFO L273 TraceCheckUtils]: 51: Hoare triple {18015#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {18022#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:35:37,677 INFO L273 TraceCheckUtils]: 52: Hoare triple {18022#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {18022#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:35:37,678 INFO L273 TraceCheckUtils]: 53: Hoare triple {18022#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {18029#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:35:37,679 INFO L273 TraceCheckUtils]: 54: Hoare triple {18029#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {18029#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:35:37,679 INFO L273 TraceCheckUtils]: 55: Hoare triple {18029#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {18036#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:35:37,680 INFO L273 TraceCheckUtils]: 56: Hoare triple {18036#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {18036#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:35:37,681 INFO L273 TraceCheckUtils]: 57: Hoare triple {18036#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {18043#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:35:37,681 INFO L273 TraceCheckUtils]: 58: Hoare triple {18043#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {18043#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:35:37,682 INFO L273 TraceCheckUtils]: 59: Hoare triple {18043#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {18050#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:35:37,683 INFO L273 TraceCheckUtils]: 60: Hoare triple {18050#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {18050#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:35:37,683 INFO L273 TraceCheckUtils]: 61: Hoare triple {18050#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {18057#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:35:37,684 INFO L273 TraceCheckUtils]: 62: Hoare triple {18057#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {18057#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:35:37,685 INFO L273 TraceCheckUtils]: 63: Hoare triple {18057#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {18064#(and (= main_i 128) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:35:37,685 INFO L273 TraceCheckUtils]: 64: Hoare triple {18064#(and (= main_i 128) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {18064#(and (= main_i 128) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:35:37,686 INFO L273 TraceCheckUtils]: 65: Hoare triple {18064#(and (= main_i 128) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {18071#(and (= main_i 132) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:35:37,687 INFO L273 TraceCheckUtils]: 66: Hoare triple {18071#(and (= main_i 132) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {18071#(and (= main_i 132) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:35:37,688 INFO L273 TraceCheckUtils]: 67: Hoare triple {18071#(and (= main_i 132) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {18078#(and (= main_i 136) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:35:37,688 INFO L273 TraceCheckUtils]: 68: Hoare triple {18078#(and (= main_i 136) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {18078#(and (= main_i 136) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:35:37,694 INFO L273 TraceCheckUtils]: 69: Hoare triple {18078#(and (= main_i 136) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {18085#(and (= 23 (select main_a (* 4 main_n))) (= main_i 140))} is VALID [2019-01-31 14:35:37,695 INFO L273 TraceCheckUtils]: 70: Hoare triple {18085#(and (= 23 (select main_a (* 4 main_n))) (= main_i 140))} assume i <= n * 4; {18085#(and (= 23 (select main_a (* 4 main_n))) (= main_i 140))} is VALID [2019-01-31 14:35:37,695 INFO L273 TraceCheckUtils]: 71: Hoare triple {18085#(and (= 23 (select main_a (* 4 main_n))) (= main_i 140))} assume a[i] != 23;i := i + 4; {18092#(and (= main_i 144) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:35:37,696 INFO L273 TraceCheckUtils]: 72: Hoare triple {18092#(and (= main_i 144) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {18096#(and (<= main_i (* 4 main_n)) (= main_i 144) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:35:37,696 INFO L273 TraceCheckUtils]: 73: Hoare triple {18096#(and (<= main_i (* 4 main_n)) (= main_i 144) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {17839#(and (< 36 main_n) (<= main_i 148))} is VALID [2019-01-31 14:35:37,697 INFO L273 TraceCheckUtils]: 74: Hoare triple {17839#(and (< 36 main_n) (<= main_i 148))} assume !(i <= n * 4); {17800#false} is VALID [2019-01-31 14:35:37,710 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 14:35:37,710 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2019-01-31 14:35:41,782 INFO L273 TraceCheckUtils]: 74: Hoare triple {18103#(<= main_i (* 4 main_n))} assume !(i <= n * 4); {17800#false} is VALID [2019-01-31 14:35:41,783 INFO L273 TraceCheckUtils]: 73: Hoare triple {18107#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} assume a[i] != 23;i := i + 4; {18103#(<= main_i (* 4 main_n))} is VALID [2019-01-31 14:35:41,784 INFO L273 TraceCheckUtils]: 72: Hoare triple {18111#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} assume i <= n * 4; {18107#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} is VALID [2019-01-31 14:35:41,785 INFO L273 TraceCheckUtils]: 71: Hoare triple {18115#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume a[i] != 23;i := i + 4; {18111#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} is VALID [2019-01-31 14:35:41,785 INFO L273 TraceCheckUtils]: 70: Hoare triple {18115#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume i <= n * 4; {18115#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2019-01-31 14:35:41,786 INFO L273 TraceCheckUtils]: 69: Hoare triple {18122#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume a[i] != 23;i := i + 4; {18115#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2019-01-31 14:35:41,787 INFO L273 TraceCheckUtils]: 68: Hoare triple {18122#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume i <= n * 4; {18122#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2019-01-31 14:35:41,788 INFO L273 TraceCheckUtils]: 67: Hoare triple {18129#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume a[i] != 23;i := i + 4; {18122#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2019-01-31 14:35:41,788 INFO L273 TraceCheckUtils]: 66: Hoare triple {18129#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume i <= n * 4; {18129#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2019-01-31 14:35:41,790 INFO L273 TraceCheckUtils]: 65: Hoare triple {18136#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume a[i] != 23;i := i + 4; {18129#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2019-01-31 14:35:41,790 INFO L273 TraceCheckUtils]: 64: Hoare triple {18136#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume i <= n * 4; {18136#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2019-01-31 14:35:41,791 INFO L273 TraceCheckUtils]: 63: Hoare triple {18143#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {18136#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2019-01-31 14:35:41,792 INFO L273 TraceCheckUtils]: 62: Hoare triple {18143#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume i <= n * 4; {18143#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2019-01-31 14:35:41,793 INFO L273 TraceCheckUtils]: 61: Hoare triple {18150#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume a[i] != 23;i := i + 4; {18143#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2019-01-31 14:35:41,793 INFO L273 TraceCheckUtils]: 60: Hoare triple {18150#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume i <= n * 4; {18150#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2019-01-31 14:35:41,794 INFO L273 TraceCheckUtils]: 59: Hoare triple {18157#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {18150#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2019-01-31 14:35:41,795 INFO L273 TraceCheckUtils]: 58: Hoare triple {18157#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume i <= n * 4; {18157#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2019-01-31 14:35:41,796 INFO L273 TraceCheckUtils]: 57: Hoare triple {18164#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {18157#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2019-01-31 14:35:41,796 INFO L273 TraceCheckUtils]: 56: Hoare triple {18164#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume i <= n * 4; {18164#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2019-01-31 14:35:41,797 INFO L273 TraceCheckUtils]: 55: Hoare triple {18171#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {18164#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2019-01-31 14:35:41,798 INFO L273 TraceCheckUtils]: 54: Hoare triple {18171#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume i <= n * 4; {18171#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2019-01-31 14:35:41,799 INFO L273 TraceCheckUtils]: 53: Hoare triple {18178#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} assume a[i] != 23;i := i + 4; {18171#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2019-01-31 14:35:41,799 INFO L273 TraceCheckUtils]: 52: Hoare triple {18178#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} assume i <= n * 4; {18178#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} is VALID [2019-01-31 14:35:41,801 INFO L273 TraceCheckUtils]: 51: Hoare triple {18185#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {18178#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} is VALID [2019-01-31 14:35:41,801 INFO L273 TraceCheckUtils]: 50: Hoare triple {18185#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} assume i <= n * 4; {18185#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} is VALID [2019-01-31 14:35:41,802 INFO L273 TraceCheckUtils]: 49: Hoare triple {18192#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {18185#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} is VALID [2019-01-31 14:35:41,803 INFO L273 TraceCheckUtils]: 48: Hoare triple {18192#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} assume i <= n * 4; {18192#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} is VALID [2019-01-31 14:35:41,804 INFO L273 TraceCheckUtils]: 47: Hoare triple {18199#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} assume a[i] != 23;i := i + 4; {18192#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} is VALID [2019-01-31 14:35:41,804 INFO L273 TraceCheckUtils]: 46: Hoare triple {18199#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} assume i <= n * 4; {18199#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} is VALID [2019-01-31 14:35:41,805 INFO L273 TraceCheckUtils]: 45: Hoare triple {18206#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {18199#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} is VALID [2019-01-31 14:35:41,806 INFO L273 TraceCheckUtils]: 44: Hoare triple {18206#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} assume i <= n * 4; {18206#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} is VALID [2019-01-31 14:35:41,807 INFO L273 TraceCheckUtils]: 43: Hoare triple {18213#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} assume a[i] != 23;i := i + 4; {18206#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} is VALID [2019-01-31 14:35:41,807 INFO L273 TraceCheckUtils]: 42: Hoare triple {18213#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} assume i <= n * 4; {18213#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} is VALID [2019-01-31 14:35:41,808 INFO L273 TraceCheckUtils]: 41: Hoare triple {18220#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} assume a[i] != 23;i := i + 4; {18213#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} is VALID [2019-01-31 14:35:41,809 INFO L273 TraceCheckUtils]: 40: Hoare triple {18220#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} assume i <= n * 4; {18220#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} is VALID [2019-01-31 14:35:41,810 INFO L273 TraceCheckUtils]: 39: Hoare triple {18227#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} assume a[i] != 23;i := i + 4; {18220#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} is VALID [2019-01-31 14:35:41,810 INFO L273 TraceCheckUtils]: 38: Hoare triple {18227#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} assume i <= n * 4; {18227#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} is VALID [2019-01-31 14:35:41,811 INFO L273 TraceCheckUtils]: 37: Hoare triple {18234#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} assume a[i] != 23;i := i + 4; {18227#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} is VALID [2019-01-31 14:35:41,812 INFO L273 TraceCheckUtils]: 36: Hoare triple {18234#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} assume i <= n * 4; {18234#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} is VALID [2019-01-31 14:35:41,813 INFO L273 TraceCheckUtils]: 35: Hoare triple {18241#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} assume a[i] != 23;i := i + 4; {18234#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} is VALID [2019-01-31 14:35:41,814 INFO L273 TraceCheckUtils]: 34: Hoare triple {18241#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} assume i <= n * 4; {18241#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} is VALID [2019-01-31 14:35:41,815 INFO L273 TraceCheckUtils]: 33: Hoare triple {18248#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} assume a[i] != 23;i := i + 4; {18241#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} is VALID [2019-01-31 14:35:41,815 INFO L273 TraceCheckUtils]: 32: Hoare triple {18248#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} assume i <= n * 4; {18248#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} is VALID [2019-01-31 14:35:41,816 INFO L273 TraceCheckUtils]: 31: Hoare triple {18255#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {18248#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} is VALID [2019-01-31 14:35:41,817 INFO L273 TraceCheckUtils]: 30: Hoare triple {18255#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} assume i <= n * 4; {18255#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} is VALID [2019-01-31 14:35:41,818 INFO L273 TraceCheckUtils]: 29: Hoare triple {18262#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {18255#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} is VALID [2019-01-31 14:35:41,818 INFO L273 TraceCheckUtils]: 28: Hoare triple {18262#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} assume i <= n * 4; {18262#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} is VALID [2019-01-31 14:35:41,819 INFO L273 TraceCheckUtils]: 27: Hoare triple {18269#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {18262#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} is VALID [2019-01-31 14:35:41,820 INFO L273 TraceCheckUtils]: 26: Hoare triple {18269#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} assume i <= n * 4; {18269#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} is VALID [2019-01-31 14:35:41,821 INFO L273 TraceCheckUtils]: 25: Hoare triple {18276#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} assume a[i] != 23;i := i + 4; {18269#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} is VALID [2019-01-31 14:35:41,821 INFO L273 TraceCheckUtils]: 24: Hoare triple {18276#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} assume i <= n * 4; {18276#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} is VALID [2019-01-31 14:35:41,822 INFO L273 TraceCheckUtils]: 23: Hoare triple {18283#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {18276#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} is VALID [2019-01-31 14:35:41,823 INFO L273 TraceCheckUtils]: 22: Hoare triple {18283#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} assume i <= n * 4; {18283#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} is VALID [2019-01-31 14:35:41,824 INFO L273 TraceCheckUtils]: 21: Hoare triple {18290#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} assume a[i] != 23;i := i + 4; {18283#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} is VALID [2019-01-31 14:35:41,825 INFO L273 TraceCheckUtils]: 20: Hoare triple {18290#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} assume i <= n * 4; {18290#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} is VALID [2019-01-31 14:35:41,826 INFO L273 TraceCheckUtils]: 19: Hoare triple {18297#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} assume a[i] != 23;i := i + 4; {18290#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} is VALID [2019-01-31 14:35:41,826 INFO L273 TraceCheckUtils]: 18: Hoare triple {18297#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} assume i <= n * 4; {18297#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} is VALID [2019-01-31 14:35:41,827 INFO L273 TraceCheckUtils]: 17: Hoare triple {18304#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} assume a[i] != 23;i := i + 4; {18297#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} is VALID [2019-01-31 14:35:41,828 INFO L273 TraceCheckUtils]: 16: Hoare triple {18304#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} assume i <= n * 4; {18304#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} is VALID [2019-01-31 14:35:41,829 INFO L273 TraceCheckUtils]: 15: Hoare triple {18311#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {18304#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} is VALID [2019-01-31 14:35:41,829 INFO L273 TraceCheckUtils]: 14: Hoare triple {18311#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} assume i <= n * 4; {18311#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} is VALID [2019-01-31 14:35:41,830 INFO L273 TraceCheckUtils]: 13: Hoare triple {18318#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {18311#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} is VALID [2019-01-31 14:35:41,831 INFO L273 TraceCheckUtils]: 12: Hoare triple {18318#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} assume i <= n * 4; {18318#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} is VALID [2019-01-31 14:35:41,832 INFO L273 TraceCheckUtils]: 11: Hoare triple {18325#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} assume a[i] != 23;i := i + 4; {18318#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} is VALID [2019-01-31 14:35:41,832 INFO L273 TraceCheckUtils]: 10: Hoare triple {18325#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} assume i <= n * 4; {18325#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} is VALID [2019-01-31 14:35:41,833 INFO L273 TraceCheckUtils]: 9: Hoare triple {18332#(or (< (* 4 main_n) (+ main_i 128)) (= (select main_a (+ main_i 128)) 23) (< (+ main_i 131) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {18325#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} is VALID [2019-01-31 14:35:41,834 INFO L273 TraceCheckUtils]: 8: Hoare triple {18332#(or (< (* 4 main_n) (+ main_i 128)) (= (select main_a (+ main_i 128)) 23) (< (+ main_i 131) (* 4 main_n)))} assume i <= n * 4; {18332#(or (< (* 4 main_n) (+ main_i 128)) (= (select main_a (+ main_i 128)) 23) (< (+ main_i 131) (* 4 main_n)))} is VALID [2019-01-31 14:35:41,835 INFO L273 TraceCheckUtils]: 7: Hoare triple {18339#(or (< (* 4 main_n) (+ main_i 132)) (< (+ main_i 135) (* 4 main_n)) (= (select main_a (+ main_i 132)) 23))} assume a[i] != 23;i := i + 4; {18332#(or (< (* 4 main_n) (+ main_i 128)) (= (select main_a (+ main_i 128)) 23) (< (+ main_i 131) (* 4 main_n)))} is VALID [2019-01-31 14:35:41,836 INFO L273 TraceCheckUtils]: 6: Hoare triple {18339#(or (< (* 4 main_n) (+ main_i 132)) (< (+ main_i 135) (* 4 main_n)) (= (select main_a (+ main_i 132)) 23))} assume i <= n * 4; {18339#(or (< (* 4 main_n) (+ main_i 132)) (< (+ main_i 135) (* 4 main_n)) (= (select main_a (+ main_i 132)) 23))} is VALID [2019-01-31 14:35:41,837 INFO L273 TraceCheckUtils]: 5: Hoare triple {18346#(or (< (+ main_i 139) (* 4 main_n)) (= (select main_a (+ main_i 136)) 23) (< (* 4 main_n) (+ main_i 136)))} assume a[i] != 23;i := i + 4; {18339#(or (< (* 4 main_n) (+ main_i 132)) (< (+ main_i 135) (* 4 main_n)) (= (select main_a (+ main_i 132)) 23))} is VALID [2019-01-31 14:35:41,837 INFO L273 TraceCheckUtils]: 4: Hoare triple {18346#(or (< (+ main_i 139) (* 4 main_n)) (= (select main_a (+ main_i 136)) 23) (< (* 4 main_n) (+ main_i 136)))} assume i <= n * 4; {18346#(or (< (+ main_i 139) (* 4 main_n)) (= (select main_a (+ main_i 136)) 23) (< (* 4 main_n) (+ main_i 136)))} is VALID [2019-01-31 14:35:41,838 INFO L273 TraceCheckUtils]: 3: Hoare triple {18353#(or (< (* 4 main_n) (+ main_i 140)) (< (+ main_i 143) (* 4 main_n)) (= (select main_a (+ main_i 140)) 23))} assume a[i] != 23;i := i + 4; {18346#(or (< (+ main_i 139) (* 4 main_n)) (= (select main_a (+ main_i 136)) 23) (< (* 4 main_n) (+ main_i 136)))} is VALID [2019-01-31 14:35:41,839 INFO L273 TraceCheckUtils]: 2: Hoare triple {18353#(or (< (* 4 main_n) (+ main_i 140)) (< (+ main_i 143) (* 4 main_n)) (= (select main_a (+ main_i 140)) 23))} assume i <= n * 4; {18353#(or (< (* 4 main_n) (+ main_i 140)) (< (+ main_i 143) (* 4 main_n)) (= (select main_a (+ main_i 140)) 23))} is VALID [2019-01-31 14:35:41,840 INFO L273 TraceCheckUtils]: 1: Hoare triple {18360#(or (= (select main_a (+ main_i 144)) 23) (< (+ main_i 147) (* 4 main_n)) (< (* 4 main_n) (+ main_i 144)))} assume a[i] != 23;i := i + 4; {18353#(or (< (* 4 main_n) (+ main_i 140)) (< (+ main_i 143) (* 4 main_n)) (= (select main_a (+ main_i 140)) 23))} is VALID [2019-01-31 14:35:41,841 INFO L273 TraceCheckUtils]: 0: Hoare triple {17799#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {18360#(or (= (select main_a (+ main_i 144)) 23) (< (+ main_i 147) (* 4 main_n)) (< (* 4 main_n) (+ main_i 144)))} is VALID [2019-01-31 14:35:41,863 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 14:35:41,881 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-01-31 14:35:41,882 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [39, 39, 39] total 116 [2019-01-31 14:35:41,882 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-01-31 14:35:41,882 INFO L78 Accepts]: Start accepts. Automaton has 79 states. Word has length 75 [2019-01-31 14:35:41,882 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-01-31 14:35:41,882 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 79 states. [2019-01-31 14:35:42,082 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 149 edges. 149 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-01-31 14:35:42,083 INFO L459 AbstractCegarLoop]: Interpolant automaton has 79 states [2019-01-31 14:35:42,083 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 79 interpolants. [2019-01-31 14:35:42,084 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1724, Invalid=12082, Unknown=0, NotChecked=0, Total=13806 [2019-01-31 14:35:42,084 INFO L87 Difference]: Start difference. First operand 76 states and 76 transitions. Second operand 79 states. [2019-01-31 14:35:50,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 14:35:50,256 INFO L93 Difference]: Finished difference Result 80 states and 80 transitions. [2019-01-31 14:35:50,256 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2019-01-31 14:35:50,256 INFO L78 Accepts]: Start accepts. Automaton has 79 states. Word has length 75 [2019-01-31 14:35:50,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-31 14:35:50,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 79 states. [2019-01-31 14:35:50,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 80 transitions. [2019-01-31 14:35:50,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 79 states. [2019-01-31 14:35:50,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 80 transitions. [2019-01-31 14:35:50,258 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 41 states and 80 transitions. [2019-01-31 14:35:50,346 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 14:35:50,348 INFO L225 Difference]: With dead ends: 80 [2019-01-31 14:35:50,348 INFO L226 Difference]: Without dead ends: 79 [2019-01-31 14:35:50,349 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 187 GetRequests, 70 SyntacticMatches, 1 SemanticMatches, 116 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3116 ImplicationChecksByTransitivity, 7.9s TimeCoverageRelationStatistics Valid=1724, Invalid=12082, Unknown=0, NotChecked=0, Total=13806 [2019-01-31 14:35:50,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2019-01-31 14:35:50,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 78. [2019-01-31 14:35:50,420 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-01-31 14:35:50,420 INFO L82 GeneralOperation]: Start isEquivalent. First operand 79 states. Second operand 78 states. [2019-01-31 14:35:50,420 INFO L74 IsIncluded]: Start isIncluded. First operand 79 states. Second operand 78 states. [2019-01-31 14:35:50,420 INFO L87 Difference]: Start difference. First operand 79 states. Second operand 78 states. [2019-01-31 14:35:50,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 14:35:50,422 INFO L93 Difference]: Finished difference Result 79 states and 79 transitions. [2019-01-31 14:35:50,422 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 79 transitions. [2019-01-31 14:35:50,422 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-31 14:35:50,422 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-01-31 14:35:50,422 INFO L74 IsIncluded]: Start isIncluded. First operand 78 states. Second operand 79 states. [2019-01-31 14:35:50,423 INFO L87 Difference]: Start difference. First operand 78 states. Second operand 79 states. [2019-01-31 14:35:50,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 14:35:50,423 INFO L93 Difference]: Finished difference Result 79 states and 79 transitions. [2019-01-31 14:35:50,424 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 79 transitions. [2019-01-31 14:35:50,424 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-31 14:35:50,424 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-01-31 14:35:50,424 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-01-31 14:35:50,424 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-01-31 14:35:50,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 78 states. [2019-01-31 14:35:50,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 78 transitions. [2019-01-31 14:35:50,425 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 78 transitions. Word has length 75 [2019-01-31 14:35:50,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-31 14:35:50,426 INFO L480 AbstractCegarLoop]: Abstraction has 78 states and 78 transitions. [2019-01-31 14:35:50,426 INFO L481 AbstractCegarLoop]: Interpolant automaton has 79 states. [2019-01-31 14:35:50,426 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 78 transitions. [2019-01-31 14:35:50,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2019-01-31 14:35:50,426 INFO L394 BasicCegarLoop]: Found error trace [2019-01-31 14:35:50,426 INFO L402 BasicCegarLoop]: trace histogram [38, 37, 1, 1] [2019-01-31 14:35:50,427 INFO L423 AbstractCegarLoop]: === Iteration 38 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-01-31 14:35:50,427 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-31 14:35:50,427 INFO L82 PathProgramCache]: Analyzing trace with hash 645045610, now seen corresponding path program 37 times [2019-01-31 14:35:50,427 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-01-31 14:35:50,428 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-31 14:35:50,428 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-01-31 14:35:50,428 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-31 14:35:50,428 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-01-31 14:35:50,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-31 14:35:52,601 INFO L273 TraceCheckUtils]: 0: Hoare triple {18756#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {18758#(and (or (and (<= 0 main_i) (= 23 (select main_a (* 4 main_n)))) (< 37 main_n)) (or (<= main_i 0) (<= main_n 37)))} is VALID [2019-01-31 14:35:52,602 INFO L273 TraceCheckUtils]: 1: Hoare triple {18758#(and (or (and (<= 0 main_i) (= 23 (select main_a (* 4 main_n)))) (< 37 main_n)) (or (<= main_i 0) (<= main_n 37)))} assume a[i] != 23;i := i + 4; {18759#(and (or (< 37 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i))) (or (<= main_i 4) (<= main_n 37)))} is VALID [2019-01-31 14:35:52,603 INFO L273 TraceCheckUtils]: 2: Hoare triple {18759#(and (or (< 37 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i))) (or (<= main_i 4) (<= main_n 37)))} assume i <= n * 4; {18759#(and (or (< 37 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i))) (or (<= main_i 4) (<= main_n 37)))} is VALID [2019-01-31 14:35:52,604 INFO L273 TraceCheckUtils]: 3: Hoare triple {18759#(and (or (< 37 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i))) (or (<= main_i 4) (<= main_n 37)))} assume a[i] != 23;i := i + 4; {18760#(and (or (<= main_i 8) (<= main_n 37)) (or (< 37 main_n) (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:35:52,605 INFO L273 TraceCheckUtils]: 4: Hoare triple {18760#(and (or (<= main_i 8) (<= main_n 37)) (or (< 37 main_n) (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {18760#(and (or (<= main_i 8) (<= main_n 37)) (or (< 37 main_n) (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:35:52,606 INFO L273 TraceCheckUtils]: 5: Hoare triple {18760#(and (or (<= main_i 8) (<= main_n 37)) (or (< 37 main_n) (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {18761#(and (or (< 37 main_n) (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 37) (<= main_i 12)))} is VALID [2019-01-31 14:35:52,607 INFO L273 TraceCheckUtils]: 6: Hoare triple {18761#(and (or (< 37 main_n) (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 37) (<= main_i 12)))} assume i <= n * 4; {18761#(and (or (< 37 main_n) (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 37) (<= main_i 12)))} is VALID [2019-01-31 14:35:52,608 INFO L273 TraceCheckUtils]: 7: Hoare triple {18761#(and (or (< 37 main_n) (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 37) (<= main_i 12)))} assume a[i] != 23;i := i + 4; {18762#(and (or (<= main_i 16) (<= main_n 37)) (or (< 37 main_n) (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:35:52,609 INFO L273 TraceCheckUtils]: 8: Hoare triple {18762#(and (or (<= main_i 16) (<= main_n 37)) (or (< 37 main_n) (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {18762#(and (or (<= main_i 16) (<= main_n 37)) (or (< 37 main_n) (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:35:52,610 INFO L273 TraceCheckUtils]: 9: Hoare triple {18762#(and (or (<= main_i 16) (<= main_n 37)) (or (< 37 main_n) (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {18763#(and (or (<= main_i 20) (<= main_n 37)) (or (< 37 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:35:52,611 INFO L273 TraceCheckUtils]: 10: Hoare triple {18763#(and (or (<= main_i 20) (<= main_n 37)) (or (< 37 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {18763#(and (or (<= main_i 20) (<= main_n 37)) (or (< 37 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:35:52,612 INFO L273 TraceCheckUtils]: 11: Hoare triple {18763#(and (or (<= main_i 20) (<= main_n 37)) (or (< 37 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {18764#(and (or (<= main_i 24) (<= main_n 37)) (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 37 main_n)))} is VALID [2019-01-31 14:35:52,616 INFO L273 TraceCheckUtils]: 12: Hoare triple {18764#(and (or (<= main_i 24) (<= main_n 37)) (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 37 main_n)))} assume i <= n * 4; {18764#(and (or (<= main_i 24) (<= main_n 37)) (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 37 main_n)))} is VALID [2019-01-31 14:35:52,617 INFO L273 TraceCheckUtils]: 13: Hoare triple {18764#(and (or (<= main_i 24) (<= main_n 37)) (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 37 main_n)))} assume a[i] != 23;i := i + 4; {18765#(and (or (<= main_n 37) (<= main_i 28)) (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 37 main_n)))} is VALID [2019-01-31 14:35:52,617 INFO L273 TraceCheckUtils]: 14: Hoare triple {18765#(and (or (<= main_n 37) (<= main_i 28)) (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 37 main_n)))} assume i <= n * 4; {18765#(and (or (<= main_n 37) (<= main_i 28)) (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 37 main_n)))} is VALID [2019-01-31 14:35:52,619 INFO L273 TraceCheckUtils]: 15: Hoare triple {18765#(and (or (<= main_n 37) (<= main_i 28)) (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 37 main_n)))} assume a[i] != 23;i := i + 4; {18766#(and (or (< 37 main_n) (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 32) (<= main_n 37)))} is VALID [2019-01-31 14:35:52,623 INFO L273 TraceCheckUtils]: 16: Hoare triple {18766#(and (or (< 37 main_n) (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 32) (<= main_n 37)))} assume i <= n * 4; {18766#(and (or (< 37 main_n) (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 32) (<= main_n 37)))} is VALID [2019-01-31 14:35:52,625 INFO L273 TraceCheckUtils]: 17: Hoare triple {18766#(and (or (< 37 main_n) (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 32) (<= main_n 37)))} assume a[i] != 23;i := i + 4; {18767#(and (or (<= main_i 36) (<= main_n 37)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i)) (< 37 main_n)))} is VALID [2019-01-31 14:35:52,633 INFO L273 TraceCheckUtils]: 18: Hoare triple {18767#(and (or (<= main_i 36) (<= main_n 37)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i)) (< 37 main_n)))} assume i <= n * 4; {18767#(and (or (<= main_i 36) (<= main_n 37)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i)) (< 37 main_n)))} is VALID [2019-01-31 14:35:52,634 INFO L273 TraceCheckUtils]: 19: Hoare triple {18767#(and (or (<= main_i 36) (<= main_n 37)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i)) (< 37 main_n)))} assume a[i] != 23;i := i + 4; {18768#(and (or (<= main_i 40) (<= main_n 37)) (or (< 37 main_n) (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:35:52,636 INFO L273 TraceCheckUtils]: 20: Hoare triple {18768#(and (or (<= main_i 40) (<= main_n 37)) (or (< 37 main_n) (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {18768#(and (or (<= main_i 40) (<= main_n 37)) (or (< 37 main_n) (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:35:52,637 INFO L273 TraceCheckUtils]: 21: Hoare triple {18768#(and (or (<= main_i 40) (<= main_n 37)) (or (< 37 main_n) (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {18769#(and (or (<= main_n 37) (<= main_i 44)) (or (< 37 main_n) (and (<= 44 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:35:52,638 INFO L273 TraceCheckUtils]: 22: Hoare triple {18769#(and (or (<= main_n 37) (<= main_i 44)) (or (< 37 main_n) (and (<= 44 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {18769#(and (or (<= main_n 37) (<= main_i 44)) (or (< 37 main_n) (and (<= 44 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:35:52,639 INFO L273 TraceCheckUtils]: 23: Hoare triple {18769#(and (or (<= main_n 37) (<= main_i 44)) (or (< 37 main_n) (and (<= 44 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {18770#(and (or (and (<= 48 main_i) (= 23 (select main_a (* 4 main_n)))) (< 37 main_n)) (or (<= main_n 37) (<= main_i 48)))} is VALID [2019-01-31 14:35:52,640 INFO L273 TraceCheckUtils]: 24: Hoare triple {18770#(and (or (and (<= 48 main_i) (= 23 (select main_a (* 4 main_n)))) (< 37 main_n)) (or (<= main_n 37) (<= main_i 48)))} assume i <= n * 4; {18770#(and (or (and (<= 48 main_i) (= 23 (select main_a (* 4 main_n)))) (< 37 main_n)) (or (<= main_n 37) (<= main_i 48)))} is VALID [2019-01-31 14:35:52,641 INFO L273 TraceCheckUtils]: 25: Hoare triple {18770#(and (or (and (<= 48 main_i) (= 23 (select main_a (* 4 main_n)))) (< 37 main_n)) (or (<= main_n 37) (<= main_i 48)))} assume a[i] != 23;i := i + 4; {18771#(and (or (<= main_i 52) (<= main_n 37)) (or (and (<= 52 main_i) (= 23 (select main_a (* 4 main_n)))) (< 37 main_n)))} is VALID [2019-01-31 14:35:52,642 INFO L273 TraceCheckUtils]: 26: Hoare triple {18771#(and (or (<= main_i 52) (<= main_n 37)) (or (and (<= 52 main_i) (= 23 (select main_a (* 4 main_n)))) (< 37 main_n)))} assume i <= n * 4; {18771#(and (or (<= main_i 52) (<= main_n 37)) (or (and (<= 52 main_i) (= 23 (select main_a (* 4 main_n)))) (< 37 main_n)))} is VALID [2019-01-31 14:35:52,643 INFO L273 TraceCheckUtils]: 27: Hoare triple {18771#(and (or (<= main_i 52) (<= main_n 37)) (or (and (<= 52 main_i) (= 23 (select main_a (* 4 main_n)))) (< 37 main_n)))} assume a[i] != 23;i := i + 4; {18772#(and (or (< 37 main_n) (and (<= 56 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 56) (<= main_n 37)))} is VALID [2019-01-31 14:35:52,644 INFO L273 TraceCheckUtils]: 28: Hoare triple {18772#(and (or (< 37 main_n) (and (<= 56 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 56) (<= main_n 37)))} assume i <= n * 4; {18772#(and (or (< 37 main_n) (and (<= 56 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 56) (<= main_n 37)))} is VALID [2019-01-31 14:35:52,645 INFO L273 TraceCheckUtils]: 29: Hoare triple {18772#(and (or (< 37 main_n) (and (<= 56 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 56) (<= main_n 37)))} assume a[i] != 23;i := i + 4; {18773#(and (or (< 37 main_n) (and (<= 60 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 60) (<= main_n 37)))} is VALID [2019-01-31 14:35:52,646 INFO L273 TraceCheckUtils]: 30: Hoare triple {18773#(and (or (< 37 main_n) (and (<= 60 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 60) (<= main_n 37)))} assume i <= n * 4; {18773#(and (or (< 37 main_n) (and (<= 60 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 60) (<= main_n 37)))} is VALID [2019-01-31 14:35:52,647 INFO L273 TraceCheckUtils]: 31: Hoare triple {18773#(and (or (< 37 main_n) (and (<= 60 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 60) (<= main_n 37)))} assume a[i] != 23;i := i + 4; {18774#(and (or (<= main_i 64) (<= main_n 37)) (or (< 37 main_n) (and (<= 64 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:35:52,648 INFO L273 TraceCheckUtils]: 32: Hoare triple {18774#(and (or (<= main_i 64) (<= main_n 37)) (or (< 37 main_n) (and (<= 64 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {18774#(and (or (<= main_i 64) (<= main_n 37)) (or (< 37 main_n) (and (<= 64 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:35:52,649 INFO L273 TraceCheckUtils]: 33: Hoare triple {18774#(and (or (<= main_i 64) (<= main_n 37)) (or (< 37 main_n) (and (<= 64 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {18775#(and (or (and (<= 68 main_i) (= 23 (select main_a (* 4 main_n)))) (< 37 main_n)) (or (<= main_n 37) (<= main_i 68)))} is VALID [2019-01-31 14:35:52,650 INFO L273 TraceCheckUtils]: 34: Hoare triple {18775#(and (or (and (<= 68 main_i) (= 23 (select main_a (* 4 main_n)))) (< 37 main_n)) (or (<= main_n 37) (<= main_i 68)))} assume i <= n * 4; {18775#(and (or (and (<= 68 main_i) (= 23 (select main_a (* 4 main_n)))) (< 37 main_n)) (or (<= main_n 37) (<= main_i 68)))} is VALID [2019-01-31 14:35:52,651 INFO L273 TraceCheckUtils]: 35: Hoare triple {18775#(and (or (and (<= 68 main_i) (= 23 (select main_a (* 4 main_n)))) (< 37 main_n)) (or (<= main_n 37) (<= main_i 68)))} assume a[i] != 23;i := i + 4; {18776#(and (or (<= main_i 72) (<= main_n 37)) (or (and (<= 72 main_i) (= 23 (select main_a (* 4 main_n)))) (< 37 main_n)))} is VALID [2019-01-31 14:35:52,652 INFO L273 TraceCheckUtils]: 36: Hoare triple {18776#(and (or (<= main_i 72) (<= main_n 37)) (or (and (<= 72 main_i) (= 23 (select main_a (* 4 main_n)))) (< 37 main_n)))} assume i <= n * 4; {18776#(and (or (<= main_i 72) (<= main_n 37)) (or (and (<= 72 main_i) (= 23 (select main_a (* 4 main_n)))) (< 37 main_n)))} is VALID [2019-01-31 14:35:52,653 INFO L273 TraceCheckUtils]: 37: Hoare triple {18776#(and (or (<= main_i 72) (<= main_n 37)) (or (and (<= 72 main_i) (= 23 (select main_a (* 4 main_n)))) (< 37 main_n)))} assume a[i] != 23;i := i + 4; {18777#(and (or (and (<= 76 main_i) (= 23 (select main_a (* 4 main_n)))) (< 37 main_n)) (or (<= main_i 76) (<= main_n 37)))} is VALID [2019-01-31 14:35:52,654 INFO L273 TraceCheckUtils]: 38: Hoare triple {18777#(and (or (and (<= 76 main_i) (= 23 (select main_a (* 4 main_n)))) (< 37 main_n)) (or (<= main_i 76) (<= main_n 37)))} assume i <= n * 4; {18777#(and (or (and (<= 76 main_i) (= 23 (select main_a (* 4 main_n)))) (< 37 main_n)) (or (<= main_i 76) (<= main_n 37)))} is VALID [2019-01-31 14:35:52,655 INFO L273 TraceCheckUtils]: 39: Hoare triple {18777#(and (or (and (<= 76 main_i) (= 23 (select main_a (* 4 main_n)))) (< 37 main_n)) (or (<= main_i 76) (<= main_n 37)))} assume a[i] != 23;i := i + 4; {18778#(and (or (<= main_n 37) (<= main_i 80)) (or (< 37 main_n) (and (<= 80 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:35:52,656 INFO L273 TraceCheckUtils]: 40: Hoare triple {18778#(and (or (<= main_n 37) (<= main_i 80)) (or (< 37 main_n) (and (<= 80 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {18778#(and (or (<= main_n 37) (<= main_i 80)) (or (< 37 main_n) (and (<= 80 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:35:52,658 INFO L273 TraceCheckUtils]: 41: Hoare triple {18778#(and (or (<= main_n 37) (<= main_i 80)) (or (< 37 main_n) (and (<= 80 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {18779#(and (or (<= main_i 84) (<= main_n 37)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 84 main_i)) (< 37 main_n)))} is VALID [2019-01-31 14:35:52,659 INFO L273 TraceCheckUtils]: 42: Hoare triple {18779#(and (or (<= main_i 84) (<= main_n 37)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 84 main_i)) (< 37 main_n)))} assume i <= n * 4; {18779#(and (or (<= main_i 84) (<= main_n 37)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 84 main_i)) (< 37 main_n)))} is VALID [2019-01-31 14:35:52,660 INFO L273 TraceCheckUtils]: 43: Hoare triple {18779#(and (or (<= main_i 84) (<= main_n 37)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 84 main_i)) (< 37 main_n)))} assume a[i] != 23;i := i + 4; {18780#(and (or (< 37 main_n) (and (<= 88 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 88) (<= main_n 37)))} is VALID [2019-01-31 14:35:52,662 INFO L273 TraceCheckUtils]: 44: Hoare triple {18780#(and (or (< 37 main_n) (and (<= 88 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 88) (<= main_n 37)))} assume i <= n * 4; {18780#(and (or (< 37 main_n) (and (<= 88 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 88) (<= main_n 37)))} is VALID [2019-01-31 14:35:52,664 INFO L273 TraceCheckUtils]: 45: Hoare triple {18780#(and (or (< 37 main_n) (and (<= 88 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 88) (<= main_n 37)))} assume a[i] != 23;i := i + 4; {18781#(and (or (<= main_i 92) (<= main_n 37)) (or (< 37 main_n) (and (<= 92 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:35:52,665 INFO L273 TraceCheckUtils]: 46: Hoare triple {18781#(and (or (<= main_i 92) (<= main_n 37)) (or (< 37 main_n) (and (<= 92 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {18781#(and (or (<= main_i 92) (<= main_n 37)) (or (< 37 main_n) (and (<= 92 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:35:52,666 INFO L273 TraceCheckUtils]: 47: Hoare triple {18781#(and (or (<= main_i 92) (<= main_n 37)) (or (< 37 main_n) (and (<= 92 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {18782#(and (or (< 37 main_n) (and (<= 96 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 96) (<= main_n 37)))} is VALID [2019-01-31 14:35:52,667 INFO L273 TraceCheckUtils]: 48: Hoare triple {18782#(and (or (< 37 main_n) (and (<= 96 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 96) (<= main_n 37)))} assume i <= n * 4; {18782#(and (or (< 37 main_n) (and (<= 96 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 96) (<= main_n 37)))} is VALID [2019-01-31 14:35:52,668 INFO L273 TraceCheckUtils]: 49: Hoare triple {18782#(and (or (< 37 main_n) (and (<= 96 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 96) (<= main_n 37)))} assume a[i] != 23;i := i + 4; {18783#(and (or (<= main_i 100) (<= main_n 37)) (or (and (<= 100 main_i) (= 23 (select main_a (* 4 main_n)))) (< 37 main_n)))} is VALID [2019-01-31 14:35:52,669 INFO L273 TraceCheckUtils]: 50: Hoare triple {18783#(and (or (<= main_i 100) (<= main_n 37)) (or (and (<= 100 main_i) (= 23 (select main_a (* 4 main_n)))) (< 37 main_n)))} assume i <= n * 4; {18783#(and (or (<= main_i 100) (<= main_n 37)) (or (and (<= 100 main_i) (= 23 (select main_a (* 4 main_n)))) (< 37 main_n)))} is VALID [2019-01-31 14:35:52,670 INFO L273 TraceCheckUtils]: 51: Hoare triple {18783#(and (or (<= main_i 100) (<= main_n 37)) (or (and (<= 100 main_i) (= 23 (select main_a (* 4 main_n)))) (< 37 main_n)))} assume a[i] != 23;i := i + 4; {18784#(and (or (and (<= 104 main_i) (= 23 (select main_a (* 4 main_n)))) (< 37 main_n)) (or (<= main_i 104) (<= main_n 37)))} is VALID [2019-01-31 14:35:52,671 INFO L273 TraceCheckUtils]: 52: Hoare triple {18784#(and (or (and (<= 104 main_i) (= 23 (select main_a (* 4 main_n)))) (< 37 main_n)) (or (<= main_i 104) (<= main_n 37)))} assume i <= n * 4; {18784#(and (or (and (<= 104 main_i) (= 23 (select main_a (* 4 main_n)))) (< 37 main_n)) (or (<= main_i 104) (<= main_n 37)))} is VALID [2019-01-31 14:35:52,672 INFO L273 TraceCheckUtils]: 53: Hoare triple {18784#(and (or (and (<= 104 main_i) (= 23 (select main_a (* 4 main_n)))) (< 37 main_n)) (or (<= main_i 104) (<= main_n 37)))} assume a[i] != 23;i := i + 4; {18785#(and (or (<= main_n 37) (<= main_i 108)) (or (< 37 main_n) (and (<= 108 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:35:52,673 INFO L273 TraceCheckUtils]: 54: Hoare triple {18785#(and (or (<= main_n 37) (<= main_i 108)) (or (< 37 main_n) (and (<= 108 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {18785#(and (or (<= main_n 37) (<= main_i 108)) (or (< 37 main_n) (and (<= 108 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:35:52,674 INFO L273 TraceCheckUtils]: 55: Hoare triple {18785#(and (or (<= main_n 37) (<= main_i 108)) (or (< 37 main_n) (and (<= 108 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {18786#(and (or (<= main_n 37) (<= main_i 112)) (or (< 37 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 112 main_i))))} is VALID [2019-01-31 14:35:52,675 INFO L273 TraceCheckUtils]: 56: Hoare triple {18786#(and (or (<= main_n 37) (<= main_i 112)) (or (< 37 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 112 main_i))))} assume i <= n * 4; {18786#(and (or (<= main_n 37) (<= main_i 112)) (or (< 37 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 112 main_i))))} is VALID [2019-01-31 14:35:52,676 INFO L273 TraceCheckUtils]: 57: Hoare triple {18786#(and (or (<= main_n 37) (<= main_i 112)) (or (< 37 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 112 main_i))))} assume a[i] != 23;i := i + 4; {18787#(and (or (< 37 main_n) (and (<= 116 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 116) (<= main_n 37)))} is VALID [2019-01-31 14:35:52,677 INFO L273 TraceCheckUtils]: 58: Hoare triple {18787#(and (or (< 37 main_n) (and (<= 116 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 116) (<= main_n 37)))} assume i <= n * 4; {18787#(and (or (< 37 main_n) (and (<= 116 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 116) (<= main_n 37)))} is VALID [2019-01-31 14:35:52,678 INFO L273 TraceCheckUtils]: 59: Hoare triple {18787#(and (or (< 37 main_n) (and (<= 116 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 116) (<= main_n 37)))} assume a[i] != 23;i := i + 4; {18788#(and (or (<= main_i 120) (<= main_n 37)) (or (< 37 main_n) (and (<= 120 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:35:52,679 INFO L273 TraceCheckUtils]: 60: Hoare triple {18788#(and (or (<= main_i 120) (<= main_n 37)) (or (< 37 main_n) (and (<= 120 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {18788#(and (or (<= main_i 120) (<= main_n 37)) (or (< 37 main_n) (and (<= 120 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:35:52,680 INFO L273 TraceCheckUtils]: 61: Hoare triple {18788#(and (or (<= main_i 120) (<= main_n 37)) (or (< 37 main_n) (and (<= 120 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {18789#(and (or (<= main_i 124) (<= main_n 37)) (or (and (<= 124 main_i) (= 23 (select main_a (* 4 main_n)))) (< 37 main_n)))} is VALID [2019-01-31 14:35:52,681 INFO L273 TraceCheckUtils]: 62: Hoare triple {18789#(and (or (<= main_i 124) (<= main_n 37)) (or (and (<= 124 main_i) (= 23 (select main_a (* 4 main_n)))) (< 37 main_n)))} assume i <= n * 4; {18789#(and (or (<= main_i 124) (<= main_n 37)) (or (and (<= 124 main_i) (= 23 (select main_a (* 4 main_n)))) (< 37 main_n)))} is VALID [2019-01-31 14:35:52,682 INFO L273 TraceCheckUtils]: 63: Hoare triple {18789#(and (or (<= main_i 124) (<= main_n 37)) (or (and (<= 124 main_i) (= 23 (select main_a (* 4 main_n)))) (< 37 main_n)))} assume a[i] != 23;i := i + 4; {18790#(and (or (< 37 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 128 main_i))) (or (<= main_i 128) (<= main_n 37)))} is VALID [2019-01-31 14:35:52,683 INFO L273 TraceCheckUtils]: 64: Hoare triple {18790#(and (or (< 37 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 128 main_i))) (or (<= main_i 128) (<= main_n 37)))} assume i <= n * 4; {18790#(and (or (< 37 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 128 main_i))) (or (<= main_i 128) (<= main_n 37)))} is VALID [2019-01-31 14:35:52,684 INFO L273 TraceCheckUtils]: 65: Hoare triple {18790#(and (or (< 37 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 128 main_i))) (or (<= main_i 128) (<= main_n 37)))} assume a[i] != 23;i := i + 4; {18791#(and (or (<= main_i 132) (<= main_n 37)) (or (< 37 main_n) (and (<= 132 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:35:52,685 INFO L273 TraceCheckUtils]: 66: Hoare triple {18791#(and (or (<= main_i 132) (<= main_n 37)) (or (< 37 main_n) (and (<= 132 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {18791#(and (or (<= main_i 132) (<= main_n 37)) (or (< 37 main_n) (and (<= 132 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:35:52,686 INFO L273 TraceCheckUtils]: 67: Hoare triple {18791#(and (or (<= main_i 132) (<= main_n 37)) (or (< 37 main_n) (and (<= 132 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {18792#(and (or (< 37 main_n) (and (<= 136 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 136) (<= main_n 37)))} is VALID [2019-01-31 14:35:52,688 INFO L273 TraceCheckUtils]: 68: Hoare triple {18792#(and (or (< 37 main_n) (and (<= 136 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 136) (<= main_n 37)))} assume i <= n * 4; {18792#(and (or (< 37 main_n) (and (<= 136 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 136) (<= main_n 37)))} is VALID [2019-01-31 14:35:52,690 INFO L273 TraceCheckUtils]: 69: Hoare triple {18792#(and (or (< 37 main_n) (and (<= 136 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 136) (<= main_n 37)))} assume a[i] != 23;i := i + 4; {18793#(and (or (< 37 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 140 main_i))) (or (<= main_n 37) (<= main_i 140)))} is VALID [2019-01-31 14:35:52,691 INFO L273 TraceCheckUtils]: 70: Hoare triple {18793#(and (or (< 37 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 140 main_i))) (or (<= main_n 37) (<= main_i 140)))} assume i <= n * 4; {18793#(and (or (< 37 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 140 main_i))) (or (<= main_n 37) (<= main_i 140)))} is VALID [2019-01-31 14:35:52,692 INFO L273 TraceCheckUtils]: 71: Hoare triple {18793#(and (or (< 37 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 140 main_i))) (or (<= main_n 37) (<= main_i 140)))} assume a[i] != 23;i := i + 4; {18794#(and (or (<= main_n 37) (<= main_i 144)) (or (< 37 main_n) (and (<= 144 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:35:52,693 INFO L273 TraceCheckUtils]: 72: Hoare triple {18794#(and (or (<= main_n 37) (<= main_i 144)) (or (< 37 main_n) (and (<= 144 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {18794#(and (or (<= main_n 37) (<= main_i 144)) (or (< 37 main_n) (and (<= 144 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:35:52,694 INFO L273 TraceCheckUtils]: 73: Hoare triple {18794#(and (or (<= main_n 37) (<= main_i 144)) (or (< 37 main_n) (and (<= 144 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {18795#(and (or (<= main_i 148) (<= main_n 37)) (or (and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (<= (* 4 main_n) main_i)) (< 37 main_n)))} is VALID [2019-01-31 14:35:52,695 INFO L273 TraceCheckUtils]: 74: Hoare triple {18795#(and (or (<= main_i 148) (<= main_n 37)) (or (and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (<= (* 4 main_n) main_i)) (< 37 main_n)))} assume i <= n * 4; {18796#(and (or (< 37 main_n) (and (<= (* 4 main_n) main_i) (<= main_i (* 4 main_n)) (= 23 (select main_a main_i)))) (<= main_i 148))} is VALID [2019-01-31 14:35:52,696 INFO L273 TraceCheckUtils]: 75: Hoare triple {18796#(and (or (< 37 main_n) (and (<= (* 4 main_n) main_i) (<= main_i (* 4 main_n)) (= 23 (select main_a main_i)))) (<= main_i 148))} assume a[i] != 23;i := i + 4; {18797#(and (<= 38 main_n) (<= main_i 152))} is VALID [2019-01-31 14:35:52,697 INFO L273 TraceCheckUtils]: 76: Hoare triple {18797#(and (<= 38 main_n) (<= main_i 152))} assume !(i <= n * 4); {18757#false} is VALID [2019-01-31 14:35:52,724 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 14:35:52,724 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-31 14:35:52,724 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-01-31 14:35:52,725 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-01-31 14:35:52,725 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-01-31 14:35:52,725 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-31 14:35:52,725 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 14:35:52,733 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-31 14:35:52,733 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2019-01-31 14:35:52,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-31 14:35:52,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-31 14:35:52,769 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-31 14:35:52,792 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 14:35:52,794 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-01-31 14:35:52,804 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-31 14:35:52,804 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2019-01-31 14:35:52,806 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-01-31 14:35:52,806 WARN L398 uantifierElimination]: Input elimination task: ∃ [v_main_a_41]. (and (= (store v_main_a_41 (* 4 main_n) 23) main_a) (= main_i 0)) [2019-01-31 14:35:52,806 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2019-01-31 14:35:55,269 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2019-01-31 14:35:55,271 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-01-31 14:35:55,277 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-31 14:35:55,277 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2019-01-31 14:35:55,280 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-01-31 14:35:55,280 WARN L398 uantifierElimination]: Input elimination task: ∃ [main_a]. (let ((.cse0 (* 4 main_n))) (and (not (= (select main_a 148) 23)) (<= 148 .cse0) (= 23 (select main_a .cse0)) (<= main_i 152))) [2019-01-31 14:35:55,280 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (let ((.cse0 (* 4 main_n))) (and (<= 148 .cse0) (not (= 148 .cse0)) (<= main_i 152))) [2019-01-31 14:35:55,327 INFO L273 TraceCheckUtils]: 0: Hoare triple {18756#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {18801#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:35:55,328 INFO L273 TraceCheckUtils]: 1: Hoare triple {18801#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {18805#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2019-01-31 14:35:55,328 INFO L273 TraceCheckUtils]: 2: Hoare triple {18805#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume i <= n * 4; {18805#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2019-01-31 14:35:55,329 INFO L273 TraceCheckUtils]: 3: Hoare triple {18805#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume a[i] != 23;i := i + 4; {18812#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:35:55,330 INFO L273 TraceCheckUtils]: 4: Hoare triple {18812#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {18812#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:35:55,330 INFO L273 TraceCheckUtils]: 5: Hoare triple {18812#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {18819#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2019-01-31 14:35:55,331 INFO L273 TraceCheckUtils]: 6: Hoare triple {18819#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume i <= n * 4; {18819#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2019-01-31 14:35:55,332 INFO L273 TraceCheckUtils]: 7: Hoare triple {18819#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume a[i] != 23;i := i + 4; {18826#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:35:55,332 INFO L273 TraceCheckUtils]: 8: Hoare triple {18826#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {18826#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:35:55,333 INFO L273 TraceCheckUtils]: 9: Hoare triple {18826#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {18833#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:35:55,334 INFO L273 TraceCheckUtils]: 10: Hoare triple {18833#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {18833#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:35:55,334 INFO L273 TraceCheckUtils]: 11: Hoare triple {18833#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {18840#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:35:55,335 INFO L273 TraceCheckUtils]: 12: Hoare triple {18840#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {18840#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:35:55,336 INFO L273 TraceCheckUtils]: 13: Hoare triple {18840#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {18847#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:35:55,336 INFO L273 TraceCheckUtils]: 14: Hoare triple {18847#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {18847#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:35:55,337 INFO L273 TraceCheckUtils]: 15: Hoare triple {18847#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {18854#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:35:55,338 INFO L273 TraceCheckUtils]: 16: Hoare triple {18854#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {18854#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:35:55,339 INFO L273 TraceCheckUtils]: 17: Hoare triple {18854#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {18861#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:35:55,339 INFO L273 TraceCheckUtils]: 18: Hoare triple {18861#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {18861#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:35:55,340 INFO L273 TraceCheckUtils]: 19: Hoare triple {18861#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {18868#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:35:55,341 INFO L273 TraceCheckUtils]: 20: Hoare triple {18868#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {18868#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:35:55,341 INFO L273 TraceCheckUtils]: 21: Hoare triple {18868#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {18875#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:35:55,342 INFO L273 TraceCheckUtils]: 22: Hoare triple {18875#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {18875#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:35:55,343 INFO L273 TraceCheckUtils]: 23: Hoare triple {18875#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {18882#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:35:55,343 INFO L273 TraceCheckUtils]: 24: Hoare triple {18882#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {18882#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:35:55,344 INFO L273 TraceCheckUtils]: 25: Hoare triple {18882#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {18889#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:35:55,345 INFO L273 TraceCheckUtils]: 26: Hoare triple {18889#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {18889#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:35:55,345 INFO L273 TraceCheckUtils]: 27: Hoare triple {18889#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {18896#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:35:55,346 INFO L273 TraceCheckUtils]: 28: Hoare triple {18896#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {18896#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:35:55,347 INFO L273 TraceCheckUtils]: 29: Hoare triple {18896#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {18903#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:35:55,347 INFO L273 TraceCheckUtils]: 30: Hoare triple {18903#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {18903#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:35:55,348 INFO L273 TraceCheckUtils]: 31: Hoare triple {18903#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {18910#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:35:55,349 INFO L273 TraceCheckUtils]: 32: Hoare triple {18910#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {18910#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:35:55,349 INFO L273 TraceCheckUtils]: 33: Hoare triple {18910#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {18917#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:35:55,350 INFO L273 TraceCheckUtils]: 34: Hoare triple {18917#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {18917#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:35:55,351 INFO L273 TraceCheckUtils]: 35: Hoare triple {18917#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {18924#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:35:55,351 INFO L273 TraceCheckUtils]: 36: Hoare triple {18924#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {18924#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:35:55,352 INFO L273 TraceCheckUtils]: 37: Hoare triple {18924#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {18931#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:35:55,353 INFO L273 TraceCheckUtils]: 38: Hoare triple {18931#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {18931#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:35:55,353 INFO L273 TraceCheckUtils]: 39: Hoare triple {18931#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {18938#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} is VALID [2019-01-31 14:35:55,354 INFO L273 TraceCheckUtils]: 40: Hoare triple {18938#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} assume i <= n * 4; {18938#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} is VALID [2019-01-31 14:35:55,355 INFO L273 TraceCheckUtils]: 41: Hoare triple {18938#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} assume a[i] != 23;i := i + 4; {18945#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:35:55,355 INFO L273 TraceCheckUtils]: 42: Hoare triple {18945#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {18945#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:35:55,356 INFO L273 TraceCheckUtils]: 43: Hoare triple {18945#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {18952#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:35:55,357 INFO L273 TraceCheckUtils]: 44: Hoare triple {18952#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {18952#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:35:55,358 INFO L273 TraceCheckUtils]: 45: Hoare triple {18952#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {18959#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:35:55,358 INFO L273 TraceCheckUtils]: 46: Hoare triple {18959#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {18959#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:35:55,359 INFO L273 TraceCheckUtils]: 47: Hoare triple {18959#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {18966#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:35:55,360 INFO L273 TraceCheckUtils]: 48: Hoare triple {18966#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {18966#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:35:55,360 INFO L273 TraceCheckUtils]: 49: Hoare triple {18966#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {18973#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:35:55,361 INFO L273 TraceCheckUtils]: 50: Hoare triple {18973#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {18973#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:35:55,362 INFO L273 TraceCheckUtils]: 51: Hoare triple {18973#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {18980#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:35:55,362 INFO L273 TraceCheckUtils]: 52: Hoare triple {18980#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {18980#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:35:55,363 INFO L273 TraceCheckUtils]: 53: Hoare triple {18980#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {18987#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:35:55,364 INFO L273 TraceCheckUtils]: 54: Hoare triple {18987#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {18987#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:35:55,364 INFO L273 TraceCheckUtils]: 55: Hoare triple {18987#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {18994#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:35:55,365 INFO L273 TraceCheckUtils]: 56: Hoare triple {18994#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {18994#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:35:55,366 INFO L273 TraceCheckUtils]: 57: Hoare triple {18994#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {19001#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:35:55,366 INFO L273 TraceCheckUtils]: 58: Hoare triple {19001#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {19001#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:35:55,367 INFO L273 TraceCheckUtils]: 59: Hoare triple {19001#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {19008#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:35:55,368 INFO L273 TraceCheckUtils]: 60: Hoare triple {19008#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {19008#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:35:55,369 INFO L273 TraceCheckUtils]: 61: Hoare triple {19008#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {19015#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:35:55,369 INFO L273 TraceCheckUtils]: 62: Hoare triple {19015#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {19015#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:35:55,370 INFO L273 TraceCheckUtils]: 63: Hoare triple {19015#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {19022#(and (= main_i 128) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:35:55,371 INFO L273 TraceCheckUtils]: 64: Hoare triple {19022#(and (= main_i 128) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {19022#(and (= main_i 128) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:35:55,371 INFO L273 TraceCheckUtils]: 65: Hoare triple {19022#(and (= main_i 128) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {19029#(and (= main_i 132) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:35:55,372 INFO L273 TraceCheckUtils]: 66: Hoare triple {19029#(and (= main_i 132) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {19029#(and (= main_i 132) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:35:55,373 INFO L273 TraceCheckUtils]: 67: Hoare triple {19029#(and (= main_i 132) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {19036#(and (= main_i 136) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:35:55,373 INFO L273 TraceCheckUtils]: 68: Hoare triple {19036#(and (= main_i 136) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {19036#(and (= main_i 136) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:35:55,374 INFO L273 TraceCheckUtils]: 69: Hoare triple {19036#(and (= main_i 136) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {19043#(and (= 23 (select main_a (* 4 main_n))) (= main_i 140))} is VALID [2019-01-31 14:35:55,375 INFO L273 TraceCheckUtils]: 70: Hoare triple {19043#(and (= 23 (select main_a (* 4 main_n))) (= main_i 140))} assume i <= n * 4; {19043#(and (= 23 (select main_a (* 4 main_n))) (= main_i 140))} is VALID [2019-01-31 14:35:55,376 INFO L273 TraceCheckUtils]: 71: Hoare triple {19043#(and (= 23 (select main_a (* 4 main_n))) (= main_i 140))} assume a[i] != 23;i := i + 4; {19050#(and (= main_i 144) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:35:55,376 INFO L273 TraceCheckUtils]: 72: Hoare triple {19050#(and (= main_i 144) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {19050#(and (= main_i 144) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:35:55,377 INFO L273 TraceCheckUtils]: 73: Hoare triple {19050#(and (= main_i 144) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {19057#(and (= main_i 148) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:35:55,378 INFO L273 TraceCheckUtils]: 74: Hoare triple {19057#(and (= main_i 148) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {19061#(and (<= main_i (* 4 main_n)) (= main_i 148) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:35:55,379 INFO L273 TraceCheckUtils]: 75: Hoare triple {19061#(and (<= main_i (* 4 main_n)) (= main_i 148) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {18797#(and (<= 38 main_n) (<= main_i 152))} is VALID [2019-01-31 14:35:55,379 INFO L273 TraceCheckUtils]: 76: Hoare triple {18797#(and (<= 38 main_n) (<= main_i 152))} assume !(i <= n * 4); {18757#false} is VALID [2019-01-31 14:35:55,394 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 14:35:55,394 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2019-01-31 14:35:59,719 INFO L273 TraceCheckUtils]: 76: Hoare triple {19068#(<= main_i (* 4 main_n))} assume !(i <= n * 4); {18757#false} is VALID [2019-01-31 14:35:59,720 INFO L273 TraceCheckUtils]: 75: Hoare triple {19072#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} assume a[i] != 23;i := i + 4; {19068#(<= main_i (* 4 main_n))} is VALID [2019-01-31 14:35:59,721 INFO L273 TraceCheckUtils]: 74: Hoare triple {19076#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} assume i <= n * 4; {19072#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} is VALID [2019-01-31 14:35:59,722 INFO L273 TraceCheckUtils]: 73: Hoare triple {19080#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume a[i] != 23;i := i + 4; {19076#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} is VALID [2019-01-31 14:35:59,722 INFO L273 TraceCheckUtils]: 72: Hoare triple {19080#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume i <= n * 4; {19080#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2019-01-31 14:35:59,723 INFO L273 TraceCheckUtils]: 71: Hoare triple {19087#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume a[i] != 23;i := i + 4; {19080#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2019-01-31 14:35:59,724 INFO L273 TraceCheckUtils]: 70: Hoare triple {19087#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume i <= n * 4; {19087#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2019-01-31 14:35:59,725 INFO L273 TraceCheckUtils]: 69: Hoare triple {19094#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume a[i] != 23;i := i + 4; {19087#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2019-01-31 14:35:59,726 INFO L273 TraceCheckUtils]: 68: Hoare triple {19094#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume i <= n * 4; {19094#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2019-01-31 14:35:59,727 INFO L273 TraceCheckUtils]: 67: Hoare triple {19101#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume a[i] != 23;i := i + 4; {19094#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2019-01-31 14:35:59,727 INFO L273 TraceCheckUtils]: 66: Hoare triple {19101#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume i <= n * 4; {19101#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2019-01-31 14:35:59,728 INFO L273 TraceCheckUtils]: 65: Hoare triple {19108#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {19101#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2019-01-31 14:35:59,729 INFO L273 TraceCheckUtils]: 64: Hoare triple {19108#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume i <= n * 4; {19108#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2019-01-31 14:35:59,730 INFO L273 TraceCheckUtils]: 63: Hoare triple {19115#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume a[i] != 23;i := i + 4; {19108#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2019-01-31 14:35:59,730 INFO L273 TraceCheckUtils]: 62: Hoare triple {19115#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume i <= n * 4; {19115#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2019-01-31 14:35:59,731 INFO L273 TraceCheckUtils]: 61: Hoare triple {19122#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {19115#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2019-01-31 14:35:59,732 INFO L273 TraceCheckUtils]: 60: Hoare triple {19122#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume i <= n * 4; {19122#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2019-01-31 14:35:59,733 INFO L273 TraceCheckUtils]: 59: Hoare triple {19129#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {19122#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2019-01-31 14:35:59,734 INFO L273 TraceCheckUtils]: 58: Hoare triple {19129#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume i <= n * 4; {19129#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2019-01-31 14:35:59,735 INFO L273 TraceCheckUtils]: 57: Hoare triple {19136#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {19129#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2019-01-31 14:35:59,735 INFO L273 TraceCheckUtils]: 56: Hoare triple {19136#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume i <= n * 4; {19136#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2019-01-31 14:35:59,736 INFO L273 TraceCheckUtils]: 55: Hoare triple {19143#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} assume a[i] != 23;i := i + 4; {19136#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2019-01-31 14:35:59,737 INFO L273 TraceCheckUtils]: 54: Hoare triple {19143#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} assume i <= n * 4; {19143#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} is VALID [2019-01-31 14:35:59,738 INFO L273 TraceCheckUtils]: 53: Hoare triple {19150#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {19143#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} is VALID [2019-01-31 14:35:59,739 INFO L273 TraceCheckUtils]: 52: Hoare triple {19150#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} assume i <= n * 4; {19150#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} is VALID [2019-01-31 14:35:59,740 INFO L273 TraceCheckUtils]: 51: Hoare triple {19157#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {19150#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} is VALID [2019-01-31 14:35:59,740 INFO L273 TraceCheckUtils]: 50: Hoare triple {19157#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} assume i <= n * 4; {19157#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} is VALID [2019-01-31 14:35:59,741 INFO L273 TraceCheckUtils]: 49: Hoare triple {19164#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} assume a[i] != 23;i := i + 4; {19157#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} is VALID [2019-01-31 14:35:59,742 INFO L273 TraceCheckUtils]: 48: Hoare triple {19164#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} assume i <= n * 4; {19164#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} is VALID [2019-01-31 14:35:59,743 INFO L273 TraceCheckUtils]: 47: Hoare triple {19171#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {19164#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} is VALID [2019-01-31 14:35:59,744 INFO L273 TraceCheckUtils]: 46: Hoare triple {19171#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} assume i <= n * 4; {19171#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} is VALID [2019-01-31 14:35:59,745 INFO L273 TraceCheckUtils]: 45: Hoare triple {19178#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} assume a[i] != 23;i := i + 4; {19171#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} is VALID [2019-01-31 14:35:59,745 INFO L273 TraceCheckUtils]: 44: Hoare triple {19178#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} assume i <= n * 4; {19178#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} is VALID [2019-01-31 14:35:59,746 INFO L273 TraceCheckUtils]: 43: Hoare triple {19185#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} assume a[i] != 23;i := i + 4; {19178#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} is VALID [2019-01-31 14:35:59,747 INFO L273 TraceCheckUtils]: 42: Hoare triple {19185#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} assume i <= n * 4; {19185#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} is VALID [2019-01-31 14:35:59,748 INFO L273 TraceCheckUtils]: 41: Hoare triple {19192#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} assume a[i] != 23;i := i + 4; {19185#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} is VALID [2019-01-31 14:35:59,754 INFO L273 TraceCheckUtils]: 40: Hoare triple {19192#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} assume i <= n * 4; {19192#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} is VALID [2019-01-31 14:35:59,755 INFO L273 TraceCheckUtils]: 39: Hoare triple {19199#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} assume a[i] != 23;i := i + 4; {19192#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} is VALID [2019-01-31 14:35:59,755 INFO L273 TraceCheckUtils]: 38: Hoare triple {19199#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} assume i <= n * 4; {19199#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} is VALID [2019-01-31 14:35:59,756 INFO L273 TraceCheckUtils]: 37: Hoare triple {19206#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} assume a[i] != 23;i := i + 4; {19199#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} is VALID [2019-01-31 14:35:59,756 INFO L273 TraceCheckUtils]: 36: Hoare triple {19206#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} assume i <= n * 4; {19206#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} is VALID [2019-01-31 14:35:59,757 INFO L273 TraceCheckUtils]: 35: Hoare triple {19213#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} assume a[i] != 23;i := i + 4; {19206#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} is VALID [2019-01-31 14:35:59,757 INFO L273 TraceCheckUtils]: 34: Hoare triple {19213#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} assume i <= n * 4; {19213#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} is VALID [2019-01-31 14:35:59,758 INFO L273 TraceCheckUtils]: 33: Hoare triple {19220#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {19213#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} is VALID [2019-01-31 14:35:59,758 INFO L273 TraceCheckUtils]: 32: Hoare triple {19220#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} assume i <= n * 4; {19220#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} is VALID [2019-01-31 14:35:59,759 INFO L273 TraceCheckUtils]: 31: Hoare triple {19227#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {19220#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} is VALID [2019-01-31 14:35:59,760 INFO L273 TraceCheckUtils]: 30: Hoare triple {19227#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} assume i <= n * 4; {19227#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} is VALID [2019-01-31 14:35:59,764 INFO L273 TraceCheckUtils]: 29: Hoare triple {19234#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {19227#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} is VALID [2019-01-31 14:35:59,764 INFO L273 TraceCheckUtils]: 28: Hoare triple {19234#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} assume i <= n * 4; {19234#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} is VALID [2019-01-31 14:35:59,765 INFO L273 TraceCheckUtils]: 27: Hoare triple {19241#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} assume a[i] != 23;i := i + 4; {19234#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} is VALID [2019-01-31 14:35:59,765 INFO L273 TraceCheckUtils]: 26: Hoare triple {19241#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} assume i <= n * 4; {19241#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} is VALID [2019-01-31 14:35:59,766 INFO L273 TraceCheckUtils]: 25: Hoare triple {19248#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {19241#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} is VALID [2019-01-31 14:35:59,766 INFO L273 TraceCheckUtils]: 24: Hoare triple {19248#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} assume i <= n * 4; {19248#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} is VALID [2019-01-31 14:35:59,767 INFO L273 TraceCheckUtils]: 23: Hoare triple {19255#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} assume a[i] != 23;i := i + 4; {19248#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} is VALID [2019-01-31 14:35:59,767 INFO L273 TraceCheckUtils]: 22: Hoare triple {19255#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} assume i <= n * 4; {19255#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} is VALID [2019-01-31 14:35:59,768 INFO L273 TraceCheckUtils]: 21: Hoare triple {19262#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} assume a[i] != 23;i := i + 4; {19255#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} is VALID [2019-01-31 14:35:59,768 INFO L273 TraceCheckUtils]: 20: Hoare triple {19262#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} assume i <= n * 4; {19262#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} is VALID [2019-01-31 14:35:59,769 INFO L273 TraceCheckUtils]: 19: Hoare triple {19269#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} assume a[i] != 23;i := i + 4; {19262#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} is VALID [2019-01-31 14:35:59,770 INFO L273 TraceCheckUtils]: 18: Hoare triple {19269#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} assume i <= n * 4; {19269#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} is VALID [2019-01-31 14:35:59,771 INFO L273 TraceCheckUtils]: 17: Hoare triple {19276#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {19269#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} is VALID [2019-01-31 14:35:59,771 INFO L273 TraceCheckUtils]: 16: Hoare triple {19276#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} assume i <= n * 4; {19276#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} is VALID [2019-01-31 14:35:59,773 INFO L273 TraceCheckUtils]: 15: Hoare triple {19283#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {19276#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} is VALID [2019-01-31 14:35:59,773 INFO L273 TraceCheckUtils]: 14: Hoare triple {19283#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} assume i <= n * 4; {19283#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} is VALID [2019-01-31 14:35:59,774 INFO L273 TraceCheckUtils]: 13: Hoare triple {19290#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} assume a[i] != 23;i := i + 4; {19283#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} is VALID [2019-01-31 14:35:59,775 INFO L273 TraceCheckUtils]: 12: Hoare triple {19290#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} assume i <= n * 4; {19290#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} is VALID [2019-01-31 14:35:59,776 INFO L273 TraceCheckUtils]: 11: Hoare triple {19297#(or (< (* 4 main_n) (+ main_i 128)) (= (select main_a (+ main_i 128)) 23) (< (+ main_i 131) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {19290#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} is VALID [2019-01-31 14:35:59,776 INFO L273 TraceCheckUtils]: 10: Hoare triple {19297#(or (< (* 4 main_n) (+ main_i 128)) (= (select main_a (+ main_i 128)) 23) (< (+ main_i 131) (* 4 main_n)))} assume i <= n * 4; {19297#(or (< (* 4 main_n) (+ main_i 128)) (= (select main_a (+ main_i 128)) 23) (< (+ main_i 131) (* 4 main_n)))} is VALID [2019-01-31 14:35:59,777 INFO L273 TraceCheckUtils]: 9: Hoare triple {19304#(or (< (* 4 main_n) (+ main_i 132)) (< (+ main_i 135) (* 4 main_n)) (= (select main_a (+ main_i 132)) 23))} assume a[i] != 23;i := i + 4; {19297#(or (< (* 4 main_n) (+ main_i 128)) (= (select main_a (+ main_i 128)) 23) (< (+ main_i 131) (* 4 main_n)))} is VALID [2019-01-31 14:35:59,778 INFO L273 TraceCheckUtils]: 8: Hoare triple {19304#(or (< (* 4 main_n) (+ main_i 132)) (< (+ main_i 135) (* 4 main_n)) (= (select main_a (+ main_i 132)) 23))} assume i <= n * 4; {19304#(or (< (* 4 main_n) (+ main_i 132)) (< (+ main_i 135) (* 4 main_n)) (= (select main_a (+ main_i 132)) 23))} is VALID [2019-01-31 14:35:59,779 INFO L273 TraceCheckUtils]: 7: Hoare triple {19311#(or (< (+ main_i 139) (* 4 main_n)) (= (select main_a (+ main_i 136)) 23) (< (* 4 main_n) (+ main_i 136)))} assume a[i] != 23;i := i + 4; {19304#(or (< (* 4 main_n) (+ main_i 132)) (< (+ main_i 135) (* 4 main_n)) (= (select main_a (+ main_i 132)) 23))} is VALID [2019-01-31 14:35:59,779 INFO L273 TraceCheckUtils]: 6: Hoare triple {19311#(or (< (+ main_i 139) (* 4 main_n)) (= (select main_a (+ main_i 136)) 23) (< (* 4 main_n) (+ main_i 136)))} assume i <= n * 4; {19311#(or (< (+ main_i 139) (* 4 main_n)) (= (select main_a (+ main_i 136)) 23) (< (* 4 main_n) (+ main_i 136)))} is VALID [2019-01-31 14:35:59,780 INFO L273 TraceCheckUtils]: 5: Hoare triple {19318#(or (< (* 4 main_n) (+ main_i 140)) (< (+ main_i 143) (* 4 main_n)) (= (select main_a (+ main_i 140)) 23))} assume a[i] != 23;i := i + 4; {19311#(or (< (+ main_i 139) (* 4 main_n)) (= (select main_a (+ main_i 136)) 23) (< (* 4 main_n) (+ main_i 136)))} is VALID [2019-01-31 14:35:59,781 INFO L273 TraceCheckUtils]: 4: Hoare triple {19318#(or (< (* 4 main_n) (+ main_i 140)) (< (+ main_i 143) (* 4 main_n)) (= (select main_a (+ main_i 140)) 23))} assume i <= n * 4; {19318#(or (< (* 4 main_n) (+ main_i 140)) (< (+ main_i 143) (* 4 main_n)) (= (select main_a (+ main_i 140)) 23))} is VALID [2019-01-31 14:35:59,782 INFO L273 TraceCheckUtils]: 3: Hoare triple {19325#(or (= (select main_a (+ main_i 144)) 23) (< (+ main_i 147) (* 4 main_n)) (< (* 4 main_n) (+ main_i 144)))} assume a[i] != 23;i := i + 4; {19318#(or (< (* 4 main_n) (+ main_i 140)) (< (+ main_i 143) (* 4 main_n)) (= (select main_a (+ main_i 140)) 23))} is VALID [2019-01-31 14:35:59,782 INFO L273 TraceCheckUtils]: 2: Hoare triple {19325#(or (= (select main_a (+ main_i 144)) 23) (< (+ main_i 147) (* 4 main_n)) (< (* 4 main_n) (+ main_i 144)))} assume i <= n * 4; {19325#(or (= (select main_a (+ main_i 144)) 23) (< (+ main_i 147) (* 4 main_n)) (< (* 4 main_n) (+ main_i 144)))} is VALID [2019-01-31 14:35:59,784 INFO L273 TraceCheckUtils]: 1: Hoare triple {19332#(or (< (+ main_i 151) (* 4 main_n)) (< (* 4 main_n) (+ main_i 148)) (= (select main_a (+ main_i 148)) 23))} assume a[i] != 23;i := i + 4; {19325#(or (= (select main_a (+ main_i 144)) 23) (< (+ main_i 147) (* 4 main_n)) (< (* 4 main_n) (+ main_i 144)))} is VALID [2019-01-31 14:35:59,785 INFO L273 TraceCheckUtils]: 0: Hoare triple {18756#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {19332#(or (< (+ main_i 151) (* 4 main_n)) (< (* 4 main_n) (+ main_i 148)) (= (select main_a (+ main_i 148)) 23))} is VALID [2019-01-31 14:35:59,806 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 14:35:59,824 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-01-31 14:35:59,824 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [40, 40, 40] total 119 [2019-01-31 14:35:59,825 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-01-31 14:35:59,825 INFO L78 Accepts]: Start accepts. Automaton has 81 states. Word has length 77 [2019-01-31 14:35:59,825 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-01-31 14:35:59,825 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 81 states. [2019-01-31 14:36:00,006 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 153 edges. 153 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-01-31 14:36:00,007 INFO L459 AbstractCegarLoop]: Interpolant automaton has 81 states [2019-01-31 14:36:00,007 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 81 interpolants. [2019-01-31 14:36:00,007 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1808, Invalid=12712, Unknown=0, NotChecked=0, Total=14520 [2019-01-31 14:36:00,008 INFO L87 Difference]: Start difference. First operand 78 states and 78 transitions. Second operand 81 states. [2019-01-31 14:36:11,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 14:36:11,055 INFO L93 Difference]: Finished difference Result 82 states and 82 transitions. [2019-01-31 14:36:11,056 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2019-01-31 14:36:11,056 INFO L78 Accepts]: Start accepts. Automaton has 81 states. Word has length 77 [2019-01-31 14:36:11,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-31 14:36:11,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 81 states. [2019-01-31 14:36:11,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 82 transitions. [2019-01-31 14:36:11,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 81 states. [2019-01-31 14:36:11,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 82 transitions. [2019-01-31 14:36:11,058 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 42 states and 82 transitions. [2019-01-31 14:36:11,152 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 14:36:11,154 INFO L225 Difference]: With dead ends: 82 [2019-01-31 14:36:11,154 INFO L226 Difference]: Without dead ends: 81 [2019-01-31 14:36:11,155 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 192 GetRequests, 72 SyntacticMatches, 1 SemanticMatches, 119 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3276 ImplicationChecksByTransitivity, 8.2s TimeCoverageRelationStatistics Valid=1808, Invalid=12712, Unknown=0, NotChecked=0, Total=14520 [2019-01-31 14:36:11,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2019-01-31 14:36:11,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 80. [2019-01-31 14:36:11,237 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-01-31 14:36:11,238 INFO L82 GeneralOperation]: Start isEquivalent. First operand 81 states. Second operand 80 states. [2019-01-31 14:36:11,238 INFO L74 IsIncluded]: Start isIncluded. First operand 81 states. Second operand 80 states. [2019-01-31 14:36:11,238 INFO L87 Difference]: Start difference. First operand 81 states. Second operand 80 states. [2019-01-31 14:36:11,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 14:36:11,239 INFO L93 Difference]: Finished difference Result 81 states and 81 transitions. [2019-01-31 14:36:11,239 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 81 transitions. [2019-01-31 14:36:11,240 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-31 14:36:11,240 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-01-31 14:36:11,240 INFO L74 IsIncluded]: Start isIncluded. First operand 80 states. Second operand 81 states. [2019-01-31 14:36:11,240 INFO L87 Difference]: Start difference. First operand 80 states. Second operand 81 states. [2019-01-31 14:36:11,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 14:36:11,241 INFO L93 Difference]: Finished difference Result 81 states and 81 transitions. [2019-01-31 14:36:11,241 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 81 transitions. [2019-01-31 14:36:11,241 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-31 14:36:11,241 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-01-31 14:36:11,241 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-01-31 14:36:11,242 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-01-31 14:36:11,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80 states. [2019-01-31 14:36:11,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 80 transitions. [2019-01-31 14:36:11,243 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 80 transitions. Word has length 77 [2019-01-31 14:36:11,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-31 14:36:11,243 INFO L480 AbstractCegarLoop]: Abstraction has 80 states and 80 transitions. [2019-01-31 14:36:11,243 INFO L481 AbstractCegarLoop]: Interpolant automaton has 81 states. [2019-01-31 14:36:11,243 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 80 transitions. [2019-01-31 14:36:11,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2019-01-31 14:36:11,244 INFO L394 BasicCegarLoop]: Found error trace [2019-01-31 14:36:11,244 INFO L402 BasicCegarLoop]: trace histogram [39, 38, 1, 1] [2019-01-31 14:36:11,244 INFO L423 AbstractCegarLoop]: === Iteration 39 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-01-31 14:36:11,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-31 14:36:11,244 INFO L82 PathProgramCache]: Analyzing trace with hash 1413541676, now seen corresponding path program 38 times [2019-01-31 14:36:11,245 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-01-31 14:36:11,245 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-31 14:36:11,245 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-31 14:36:11,245 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-31 14:36:11,246 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-01-31 14:36:11,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-31 14:36:13,521 INFO L273 TraceCheckUtils]: 0: Hoare triple {19738#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {19740#(and (or (and (<= 0 main_i) (= 23 (select main_a (* 4 main_n)))) (< 38 main_n)) (or (<= main_n 38) (<= main_i 0)))} is VALID [2019-01-31 14:36:13,523 INFO L273 TraceCheckUtils]: 1: Hoare triple {19740#(and (or (and (<= 0 main_i) (= 23 (select main_a (* 4 main_n)))) (< 38 main_n)) (or (<= main_n 38) (<= main_i 0)))} assume a[i] != 23;i := i + 4; {19741#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i)) (< 38 main_n)) (or (<= main_n 38) (<= main_i 4)))} is VALID [2019-01-31 14:36:13,523 INFO L273 TraceCheckUtils]: 2: Hoare triple {19741#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i)) (< 38 main_n)) (or (<= main_n 38) (<= main_i 4)))} assume i <= n * 4; {19741#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i)) (< 38 main_n)) (or (<= main_n 38) (<= main_i 4)))} is VALID [2019-01-31 14:36:13,525 INFO L273 TraceCheckUtils]: 3: Hoare triple {19741#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i)) (< 38 main_n)) (or (<= main_n 38) (<= main_i 4)))} assume a[i] != 23;i := i + 4; {19742#(and (or (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n)))) (< 38 main_n)) (or (<= main_i 8) (<= main_n 38)))} is VALID [2019-01-31 14:36:13,525 INFO L273 TraceCheckUtils]: 4: Hoare triple {19742#(and (or (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n)))) (< 38 main_n)) (or (<= main_i 8) (<= main_n 38)))} assume i <= n * 4; {19742#(and (or (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n)))) (< 38 main_n)) (or (<= main_i 8) (<= main_n 38)))} is VALID [2019-01-31 14:36:13,526 INFO L273 TraceCheckUtils]: 5: Hoare triple {19742#(and (or (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n)))) (< 38 main_n)) (or (<= main_i 8) (<= main_n 38)))} assume a[i] != 23;i := i + 4; {19743#(and (or (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n)))) (< 38 main_n)) (or (<= main_n 38) (<= main_i 12)))} is VALID [2019-01-31 14:36:13,527 INFO L273 TraceCheckUtils]: 6: Hoare triple {19743#(and (or (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n)))) (< 38 main_n)) (or (<= main_n 38) (<= main_i 12)))} assume i <= n * 4; {19743#(and (or (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n)))) (< 38 main_n)) (or (<= main_n 38) (<= main_i 12)))} is VALID [2019-01-31 14:36:13,528 INFO L273 TraceCheckUtils]: 7: Hoare triple {19743#(and (or (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n)))) (< 38 main_n)) (or (<= main_n 38) (<= main_i 12)))} assume a[i] != 23;i := i + 4; {19744#(and (or (<= main_n 38) (<= main_i 16)) (or (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n)))) (< 38 main_n)))} is VALID [2019-01-31 14:36:13,529 INFO L273 TraceCheckUtils]: 8: Hoare triple {19744#(and (or (<= main_n 38) (<= main_i 16)) (or (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n)))) (< 38 main_n)))} assume i <= n * 4; {19744#(and (or (<= main_n 38) (<= main_i 16)) (or (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n)))) (< 38 main_n)))} is VALID [2019-01-31 14:36:13,530 INFO L273 TraceCheckUtils]: 9: Hoare triple {19744#(and (or (<= main_n 38) (<= main_i 16)) (or (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n)))) (< 38 main_n)))} assume a[i] != 23;i := i + 4; {19745#(and (or (< 38 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 38) (<= main_i 20)))} is VALID [2019-01-31 14:36:13,531 INFO L273 TraceCheckUtils]: 10: Hoare triple {19745#(and (or (< 38 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 38) (<= main_i 20)))} assume i <= n * 4; {19745#(and (or (< 38 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 38) (<= main_i 20)))} is VALID [2019-01-31 14:36:13,532 INFO L273 TraceCheckUtils]: 11: Hoare triple {19745#(and (or (< 38 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 38) (<= main_i 20)))} assume a[i] != 23;i := i + 4; {19746#(and (or (<= main_n 38) (<= main_i 24)) (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 38 main_n)))} is VALID [2019-01-31 14:36:13,533 INFO L273 TraceCheckUtils]: 12: Hoare triple {19746#(and (or (<= main_n 38) (<= main_i 24)) (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 38 main_n)))} assume i <= n * 4; {19746#(and (or (<= main_n 38) (<= main_i 24)) (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 38 main_n)))} is VALID [2019-01-31 14:36:13,534 INFO L273 TraceCheckUtils]: 13: Hoare triple {19746#(and (or (<= main_n 38) (<= main_i 24)) (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 38 main_n)))} assume a[i] != 23;i := i + 4; {19747#(and (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 38 main_n)) (or (<= main_n 38) (<= main_i 28)))} is VALID [2019-01-31 14:36:13,535 INFO L273 TraceCheckUtils]: 14: Hoare triple {19747#(and (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 38 main_n)) (or (<= main_n 38) (<= main_i 28)))} assume i <= n * 4; {19747#(and (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 38 main_n)) (or (<= main_n 38) (<= main_i 28)))} is VALID [2019-01-31 14:36:13,536 INFO L273 TraceCheckUtils]: 15: Hoare triple {19747#(and (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 38 main_n)) (or (<= main_n 38) (<= main_i 28)))} assume a[i] != 23;i := i + 4; {19748#(and (or (<= main_i 32) (<= main_n 38)) (or (< 38 main_n) (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:36:13,537 INFO L273 TraceCheckUtils]: 16: Hoare triple {19748#(and (or (<= main_i 32) (<= main_n 38)) (or (< 38 main_n) (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {19748#(and (or (<= main_i 32) (<= main_n 38)) (or (< 38 main_n) (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:36:13,538 INFO L273 TraceCheckUtils]: 17: Hoare triple {19748#(and (or (<= main_i 32) (<= main_n 38)) (or (< 38 main_n) (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {19749#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i)) (< 38 main_n)) (or (<= main_i 36) (<= main_n 38)))} is VALID [2019-01-31 14:36:13,539 INFO L273 TraceCheckUtils]: 18: Hoare triple {19749#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i)) (< 38 main_n)) (or (<= main_i 36) (<= main_n 38)))} assume i <= n * 4; {19749#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i)) (< 38 main_n)) (or (<= main_i 36) (<= main_n 38)))} is VALID [2019-01-31 14:36:13,540 INFO L273 TraceCheckUtils]: 19: Hoare triple {19749#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i)) (< 38 main_n)) (or (<= main_i 36) (<= main_n 38)))} assume a[i] != 23;i := i + 4; {19750#(and (or (<= main_i 40) (<= main_n 38)) (or (< 38 main_n) (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:36:13,541 INFO L273 TraceCheckUtils]: 20: Hoare triple {19750#(and (or (<= main_i 40) (<= main_n 38)) (or (< 38 main_n) (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {19750#(and (or (<= main_i 40) (<= main_n 38)) (or (< 38 main_n) (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:36:13,542 INFO L273 TraceCheckUtils]: 21: Hoare triple {19750#(and (or (<= main_i 40) (<= main_n 38)) (or (< 38 main_n) (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {19751#(and (or (< 38 main_n) (and (<= 44 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 38) (<= main_i 44)))} is VALID [2019-01-31 14:36:13,543 INFO L273 TraceCheckUtils]: 22: Hoare triple {19751#(and (or (< 38 main_n) (and (<= 44 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 38) (<= main_i 44)))} assume i <= n * 4; {19751#(and (or (< 38 main_n) (and (<= 44 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 38) (<= main_i 44)))} is VALID [2019-01-31 14:36:13,544 INFO L273 TraceCheckUtils]: 23: Hoare triple {19751#(and (or (< 38 main_n) (and (<= 44 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 38) (<= main_i 44)))} assume a[i] != 23;i := i + 4; {19752#(and (or (<= main_n 38) (<= main_i 48)) (or (and (<= 48 main_i) (= 23 (select main_a (* 4 main_n)))) (< 38 main_n)))} is VALID [2019-01-31 14:36:13,544 INFO L273 TraceCheckUtils]: 24: Hoare triple {19752#(and (or (<= main_n 38) (<= main_i 48)) (or (and (<= 48 main_i) (= 23 (select main_a (* 4 main_n)))) (< 38 main_n)))} assume i <= n * 4; {19752#(and (or (<= main_n 38) (<= main_i 48)) (or (and (<= 48 main_i) (= 23 (select main_a (* 4 main_n)))) (< 38 main_n)))} is VALID [2019-01-31 14:36:13,546 INFO L273 TraceCheckUtils]: 25: Hoare triple {19752#(and (or (<= main_n 38) (<= main_i 48)) (or (and (<= 48 main_i) (= 23 (select main_a (* 4 main_n)))) (< 38 main_n)))} assume a[i] != 23;i := i + 4; {19753#(and (or (<= main_i 52) (<= main_n 38)) (or (and (<= 52 main_i) (= 23 (select main_a (* 4 main_n)))) (< 38 main_n)))} is VALID [2019-01-31 14:36:13,546 INFO L273 TraceCheckUtils]: 26: Hoare triple {19753#(and (or (<= main_i 52) (<= main_n 38)) (or (and (<= 52 main_i) (= 23 (select main_a (* 4 main_n)))) (< 38 main_n)))} assume i <= n * 4; {19753#(and (or (<= main_i 52) (<= main_n 38)) (or (and (<= 52 main_i) (= 23 (select main_a (* 4 main_n)))) (< 38 main_n)))} is VALID [2019-01-31 14:36:13,547 INFO L273 TraceCheckUtils]: 27: Hoare triple {19753#(and (or (<= main_i 52) (<= main_n 38)) (or (and (<= 52 main_i) (= 23 (select main_a (* 4 main_n)))) (< 38 main_n)))} assume a[i] != 23;i := i + 4; {19754#(and (or (<= main_n 38) (<= main_i 56)) (or (and (<= 56 main_i) (= 23 (select main_a (* 4 main_n)))) (< 38 main_n)))} is VALID [2019-01-31 14:36:13,548 INFO L273 TraceCheckUtils]: 28: Hoare triple {19754#(and (or (<= main_n 38) (<= main_i 56)) (or (and (<= 56 main_i) (= 23 (select main_a (* 4 main_n)))) (< 38 main_n)))} assume i <= n * 4; {19754#(and (or (<= main_n 38) (<= main_i 56)) (or (and (<= 56 main_i) (= 23 (select main_a (* 4 main_n)))) (< 38 main_n)))} is VALID [2019-01-31 14:36:13,549 INFO L273 TraceCheckUtils]: 29: Hoare triple {19754#(and (or (<= main_n 38) (<= main_i 56)) (or (and (<= 56 main_i) (= 23 (select main_a (* 4 main_n)))) (< 38 main_n)))} assume a[i] != 23;i := i + 4; {19755#(and (or (<= main_n 38) (<= main_i 60)) (or (< 38 main_n) (and (<= 60 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:36:13,550 INFO L273 TraceCheckUtils]: 30: Hoare triple {19755#(and (or (<= main_n 38) (<= main_i 60)) (or (< 38 main_n) (and (<= 60 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {19755#(and (or (<= main_n 38) (<= main_i 60)) (or (< 38 main_n) (and (<= 60 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:36:13,551 INFO L273 TraceCheckUtils]: 31: Hoare triple {19755#(and (or (<= main_n 38) (<= main_i 60)) (or (< 38 main_n) (and (<= 60 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {19756#(and (or (and (<= 64 main_i) (= 23 (select main_a (* 4 main_n)))) (< 38 main_n)) (or (<= main_i 64) (<= main_n 38)))} is VALID [2019-01-31 14:36:13,552 INFO L273 TraceCheckUtils]: 32: Hoare triple {19756#(and (or (and (<= 64 main_i) (= 23 (select main_a (* 4 main_n)))) (< 38 main_n)) (or (<= main_i 64) (<= main_n 38)))} assume i <= n * 4; {19756#(and (or (and (<= 64 main_i) (= 23 (select main_a (* 4 main_n)))) (< 38 main_n)) (or (<= main_i 64) (<= main_n 38)))} is VALID [2019-01-31 14:36:13,553 INFO L273 TraceCheckUtils]: 33: Hoare triple {19756#(and (or (and (<= 64 main_i) (= 23 (select main_a (* 4 main_n)))) (< 38 main_n)) (or (<= main_i 64) (<= main_n 38)))} assume a[i] != 23;i := i + 4; {19757#(and (or (and (<= 68 main_i) (= 23 (select main_a (* 4 main_n)))) (< 38 main_n)) (or (<= main_n 38) (<= main_i 68)))} is VALID [2019-01-31 14:36:13,554 INFO L273 TraceCheckUtils]: 34: Hoare triple {19757#(and (or (and (<= 68 main_i) (= 23 (select main_a (* 4 main_n)))) (< 38 main_n)) (or (<= main_n 38) (<= main_i 68)))} assume i <= n * 4; {19757#(and (or (and (<= 68 main_i) (= 23 (select main_a (* 4 main_n)))) (< 38 main_n)) (or (<= main_n 38) (<= main_i 68)))} is VALID [2019-01-31 14:36:13,555 INFO L273 TraceCheckUtils]: 35: Hoare triple {19757#(and (or (and (<= 68 main_i) (= 23 (select main_a (* 4 main_n)))) (< 38 main_n)) (or (<= main_n 38) (<= main_i 68)))} assume a[i] != 23;i := i + 4; {19758#(and (or (and (<= 72 main_i) (= 23 (select main_a (* 4 main_n)))) (< 38 main_n)) (or (<= main_n 38) (<= main_i 72)))} is VALID [2019-01-31 14:36:13,556 INFO L273 TraceCheckUtils]: 36: Hoare triple {19758#(and (or (and (<= 72 main_i) (= 23 (select main_a (* 4 main_n)))) (< 38 main_n)) (or (<= main_n 38) (<= main_i 72)))} assume i <= n * 4; {19758#(and (or (and (<= 72 main_i) (= 23 (select main_a (* 4 main_n)))) (< 38 main_n)) (or (<= main_n 38) (<= main_i 72)))} is VALID [2019-01-31 14:36:13,557 INFO L273 TraceCheckUtils]: 37: Hoare triple {19758#(and (or (and (<= 72 main_i) (= 23 (select main_a (* 4 main_n)))) (< 38 main_n)) (or (<= main_n 38) (<= main_i 72)))} assume a[i] != 23;i := i + 4; {19759#(and (or (and (<= 76 main_i) (= 23 (select main_a (* 4 main_n)))) (< 38 main_n)) (or (<= main_i 76) (<= main_n 38)))} is VALID [2019-01-31 14:36:13,558 INFO L273 TraceCheckUtils]: 38: Hoare triple {19759#(and (or (and (<= 76 main_i) (= 23 (select main_a (* 4 main_n)))) (< 38 main_n)) (or (<= main_i 76) (<= main_n 38)))} assume i <= n * 4; {19759#(and (or (and (<= 76 main_i) (= 23 (select main_a (* 4 main_n)))) (< 38 main_n)) (or (<= main_i 76) (<= main_n 38)))} is VALID [2019-01-31 14:36:13,559 INFO L273 TraceCheckUtils]: 39: Hoare triple {19759#(and (or (and (<= 76 main_i) (= 23 (select main_a (* 4 main_n)))) (< 38 main_n)) (or (<= main_i 76) (<= main_n 38)))} assume a[i] != 23;i := i + 4; {19760#(and (or (and (<= 80 main_i) (= 23 (select main_a (* 4 main_n)))) (< 38 main_n)) (or (<= main_n 38) (<= main_i 80)))} is VALID [2019-01-31 14:36:13,559 INFO L273 TraceCheckUtils]: 40: Hoare triple {19760#(and (or (and (<= 80 main_i) (= 23 (select main_a (* 4 main_n)))) (< 38 main_n)) (or (<= main_n 38) (<= main_i 80)))} assume i <= n * 4; {19760#(and (or (and (<= 80 main_i) (= 23 (select main_a (* 4 main_n)))) (< 38 main_n)) (or (<= main_n 38) (<= main_i 80)))} is VALID [2019-01-31 14:36:13,560 INFO L273 TraceCheckUtils]: 41: Hoare triple {19760#(and (or (and (<= 80 main_i) (= 23 (select main_a (* 4 main_n)))) (< 38 main_n)) (or (<= main_n 38) (<= main_i 80)))} assume a[i] != 23;i := i + 4; {19761#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 84 main_i)) (< 38 main_n)) (or (<= main_i 84) (<= main_n 38)))} is VALID [2019-01-31 14:36:13,561 INFO L273 TraceCheckUtils]: 42: Hoare triple {19761#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 84 main_i)) (< 38 main_n)) (or (<= main_i 84) (<= main_n 38)))} assume i <= n * 4; {19761#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 84 main_i)) (< 38 main_n)) (or (<= main_i 84) (<= main_n 38)))} is VALID [2019-01-31 14:36:13,562 INFO L273 TraceCheckUtils]: 43: Hoare triple {19761#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 84 main_i)) (< 38 main_n)) (or (<= main_i 84) (<= main_n 38)))} assume a[i] != 23;i := i + 4; {19762#(and (or (<= main_i 88) (<= main_n 38)) (or (and (<= 88 main_i) (= 23 (select main_a (* 4 main_n)))) (< 38 main_n)))} is VALID [2019-01-31 14:36:13,563 INFO L273 TraceCheckUtils]: 44: Hoare triple {19762#(and (or (<= main_i 88) (<= main_n 38)) (or (and (<= 88 main_i) (= 23 (select main_a (* 4 main_n)))) (< 38 main_n)))} assume i <= n * 4; {19762#(and (or (<= main_i 88) (<= main_n 38)) (or (and (<= 88 main_i) (= 23 (select main_a (* 4 main_n)))) (< 38 main_n)))} is VALID [2019-01-31 14:36:13,564 INFO L273 TraceCheckUtils]: 45: Hoare triple {19762#(and (or (<= main_i 88) (<= main_n 38)) (or (and (<= 88 main_i) (= 23 (select main_a (* 4 main_n)))) (< 38 main_n)))} assume a[i] != 23;i := i + 4; {19763#(and (or (<= main_i 92) (<= main_n 38)) (or (< 38 main_n) (and (<= 92 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:36:13,565 INFO L273 TraceCheckUtils]: 46: Hoare triple {19763#(and (or (<= main_i 92) (<= main_n 38)) (or (< 38 main_n) (and (<= 92 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {19763#(and (or (<= main_i 92) (<= main_n 38)) (or (< 38 main_n) (and (<= 92 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:36:13,566 INFO L273 TraceCheckUtils]: 47: Hoare triple {19763#(and (or (<= main_i 92) (<= main_n 38)) (or (< 38 main_n) (and (<= 92 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {19764#(and (or (and (<= 96 main_i) (= 23 (select main_a (* 4 main_n)))) (< 38 main_n)) (or (<= main_i 96) (<= main_n 38)))} is VALID [2019-01-31 14:36:13,566 INFO L273 TraceCheckUtils]: 48: Hoare triple {19764#(and (or (and (<= 96 main_i) (= 23 (select main_a (* 4 main_n)))) (< 38 main_n)) (or (<= main_i 96) (<= main_n 38)))} assume i <= n * 4; {19764#(and (or (and (<= 96 main_i) (= 23 (select main_a (* 4 main_n)))) (< 38 main_n)) (or (<= main_i 96) (<= main_n 38)))} is VALID [2019-01-31 14:36:13,568 INFO L273 TraceCheckUtils]: 49: Hoare triple {19764#(and (or (and (<= 96 main_i) (= 23 (select main_a (* 4 main_n)))) (< 38 main_n)) (or (<= main_i 96) (<= main_n 38)))} assume a[i] != 23;i := i + 4; {19765#(and (or (<= main_i 100) (<= main_n 38)) (or (and (<= 100 main_i) (= 23 (select main_a (* 4 main_n)))) (< 38 main_n)))} is VALID [2019-01-31 14:36:13,568 INFO L273 TraceCheckUtils]: 50: Hoare triple {19765#(and (or (<= main_i 100) (<= main_n 38)) (or (and (<= 100 main_i) (= 23 (select main_a (* 4 main_n)))) (< 38 main_n)))} assume i <= n * 4; {19765#(and (or (<= main_i 100) (<= main_n 38)) (or (and (<= 100 main_i) (= 23 (select main_a (* 4 main_n)))) (< 38 main_n)))} is VALID [2019-01-31 14:36:13,569 INFO L273 TraceCheckUtils]: 51: Hoare triple {19765#(and (or (<= main_i 100) (<= main_n 38)) (or (and (<= 100 main_i) (= 23 (select main_a (* 4 main_n)))) (< 38 main_n)))} assume a[i] != 23;i := i + 4; {19766#(and (or (and (<= 104 main_i) (= 23 (select main_a (* 4 main_n)))) (< 38 main_n)) (or (<= main_i 104) (<= main_n 38)))} is VALID [2019-01-31 14:36:13,570 INFO L273 TraceCheckUtils]: 52: Hoare triple {19766#(and (or (and (<= 104 main_i) (= 23 (select main_a (* 4 main_n)))) (< 38 main_n)) (or (<= main_i 104) (<= main_n 38)))} assume i <= n * 4; {19766#(and (or (and (<= 104 main_i) (= 23 (select main_a (* 4 main_n)))) (< 38 main_n)) (or (<= main_i 104) (<= main_n 38)))} is VALID [2019-01-31 14:36:13,571 INFO L273 TraceCheckUtils]: 53: Hoare triple {19766#(and (or (and (<= 104 main_i) (= 23 (select main_a (* 4 main_n)))) (< 38 main_n)) (or (<= main_i 104) (<= main_n 38)))} assume a[i] != 23;i := i + 4; {19767#(and (or (<= main_n 38) (<= main_i 108)) (or (and (<= 108 main_i) (= 23 (select main_a (* 4 main_n)))) (< 38 main_n)))} is VALID [2019-01-31 14:36:13,572 INFO L273 TraceCheckUtils]: 54: Hoare triple {19767#(and (or (<= main_n 38) (<= main_i 108)) (or (and (<= 108 main_i) (= 23 (select main_a (* 4 main_n)))) (< 38 main_n)))} assume i <= n * 4; {19767#(and (or (<= main_n 38) (<= main_i 108)) (or (and (<= 108 main_i) (= 23 (select main_a (* 4 main_n)))) (< 38 main_n)))} is VALID [2019-01-31 14:36:13,573 INFO L273 TraceCheckUtils]: 55: Hoare triple {19767#(and (or (<= main_n 38) (<= main_i 108)) (or (and (<= 108 main_i) (= 23 (select main_a (* 4 main_n)))) (< 38 main_n)))} assume a[i] != 23;i := i + 4; {19768#(and (or (<= main_n 38) (<= main_i 112)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 112 main_i)) (< 38 main_n)))} is VALID [2019-01-31 14:36:13,574 INFO L273 TraceCheckUtils]: 56: Hoare triple {19768#(and (or (<= main_n 38) (<= main_i 112)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 112 main_i)) (< 38 main_n)))} assume i <= n * 4; {19768#(and (or (<= main_n 38) (<= main_i 112)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 112 main_i)) (< 38 main_n)))} is VALID [2019-01-31 14:36:13,575 INFO L273 TraceCheckUtils]: 57: Hoare triple {19768#(and (or (<= main_n 38) (<= main_i 112)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 112 main_i)) (< 38 main_n)))} assume a[i] != 23;i := i + 4; {19769#(and (or (< 38 main_n) (and (<= 116 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 38) (<= main_i 116)))} is VALID [2019-01-31 14:36:13,575 INFO L273 TraceCheckUtils]: 58: Hoare triple {19769#(and (or (< 38 main_n) (and (<= 116 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 38) (<= main_i 116)))} assume i <= n * 4; {19769#(and (or (< 38 main_n) (and (<= 116 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 38) (<= main_i 116)))} is VALID [2019-01-31 14:36:13,577 INFO L273 TraceCheckUtils]: 59: Hoare triple {19769#(and (or (< 38 main_n) (and (<= 116 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 38) (<= main_i 116)))} assume a[i] != 23;i := i + 4; {19770#(and (or (<= main_i 120) (<= main_n 38)) (or (< 38 main_n) (and (<= 120 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:36:13,577 INFO L273 TraceCheckUtils]: 60: Hoare triple {19770#(and (or (<= main_i 120) (<= main_n 38)) (or (< 38 main_n) (and (<= 120 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {19770#(and (or (<= main_i 120) (<= main_n 38)) (or (< 38 main_n) (and (<= 120 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:36:13,578 INFO L273 TraceCheckUtils]: 61: Hoare triple {19770#(and (or (<= main_i 120) (<= main_n 38)) (or (< 38 main_n) (and (<= 120 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {19771#(and (or (<= main_n 38) (<= main_i 124)) (or (and (<= 124 main_i) (= 23 (select main_a (* 4 main_n)))) (< 38 main_n)))} is VALID [2019-01-31 14:36:13,579 INFO L273 TraceCheckUtils]: 62: Hoare triple {19771#(and (or (<= main_n 38) (<= main_i 124)) (or (and (<= 124 main_i) (= 23 (select main_a (* 4 main_n)))) (< 38 main_n)))} assume i <= n * 4; {19771#(and (or (<= main_n 38) (<= main_i 124)) (or (and (<= 124 main_i) (= 23 (select main_a (* 4 main_n)))) (< 38 main_n)))} is VALID [2019-01-31 14:36:13,580 INFO L273 TraceCheckUtils]: 63: Hoare triple {19771#(and (or (<= main_n 38) (<= main_i 124)) (or (and (<= 124 main_i) (= 23 (select main_a (* 4 main_n)))) (< 38 main_n)))} assume a[i] != 23;i := i + 4; {19772#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 128 main_i)) (< 38 main_n)) (or (<= main_n 38) (<= main_i 128)))} is VALID [2019-01-31 14:36:13,581 INFO L273 TraceCheckUtils]: 64: Hoare triple {19772#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 128 main_i)) (< 38 main_n)) (or (<= main_n 38) (<= main_i 128)))} assume i <= n * 4; {19772#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 128 main_i)) (< 38 main_n)) (or (<= main_n 38) (<= main_i 128)))} is VALID [2019-01-31 14:36:13,582 INFO L273 TraceCheckUtils]: 65: Hoare triple {19772#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 128 main_i)) (< 38 main_n)) (or (<= main_n 38) (<= main_i 128)))} assume a[i] != 23;i := i + 4; {19773#(and (or (<= main_i 132) (<= main_n 38)) (or (and (<= 132 main_i) (= 23 (select main_a (* 4 main_n)))) (< 38 main_n)))} is VALID [2019-01-31 14:36:13,583 INFO L273 TraceCheckUtils]: 66: Hoare triple {19773#(and (or (<= main_i 132) (<= main_n 38)) (or (and (<= 132 main_i) (= 23 (select main_a (* 4 main_n)))) (< 38 main_n)))} assume i <= n * 4; {19773#(and (or (<= main_i 132) (<= main_n 38)) (or (and (<= 132 main_i) (= 23 (select main_a (* 4 main_n)))) (< 38 main_n)))} is VALID [2019-01-31 14:36:13,584 INFO L273 TraceCheckUtils]: 67: Hoare triple {19773#(and (or (<= main_i 132) (<= main_n 38)) (or (and (<= 132 main_i) (= 23 (select main_a (* 4 main_n)))) (< 38 main_n)))} assume a[i] != 23;i := i + 4; {19774#(and (or (<= main_i 136) (<= main_n 38)) (or (< 38 main_n) (and (<= 136 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:36:13,584 INFO L273 TraceCheckUtils]: 68: Hoare triple {19774#(and (or (<= main_i 136) (<= main_n 38)) (or (< 38 main_n) (and (<= 136 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {19774#(and (or (<= main_i 136) (<= main_n 38)) (or (< 38 main_n) (and (<= 136 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:36:13,585 INFO L273 TraceCheckUtils]: 69: Hoare triple {19774#(and (or (<= main_i 136) (<= main_n 38)) (or (< 38 main_n) (and (<= 136 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {19775#(and (or (<= main_n 38) (<= main_i 140)) (or (< 38 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 140 main_i))))} is VALID [2019-01-31 14:36:13,586 INFO L273 TraceCheckUtils]: 70: Hoare triple {19775#(and (or (<= main_n 38) (<= main_i 140)) (or (< 38 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 140 main_i))))} assume i <= n * 4; {19775#(and (or (<= main_n 38) (<= main_i 140)) (or (< 38 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 140 main_i))))} is VALID [2019-01-31 14:36:13,587 INFO L273 TraceCheckUtils]: 71: Hoare triple {19775#(and (or (<= main_n 38) (<= main_i 140)) (or (< 38 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 140 main_i))))} assume a[i] != 23;i := i + 4; {19776#(and (or (<= main_n 38) (<= main_i 144)) (or (< 38 main_n) (and (<= 144 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:36:13,588 INFO L273 TraceCheckUtils]: 72: Hoare triple {19776#(and (or (<= main_n 38) (<= main_i 144)) (or (< 38 main_n) (and (<= 144 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {19776#(and (or (<= main_n 38) (<= main_i 144)) (or (< 38 main_n) (and (<= 144 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:36:13,589 INFO L273 TraceCheckUtils]: 73: Hoare triple {19776#(and (or (<= main_n 38) (<= main_i 144)) (or (< 38 main_n) (and (<= 144 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {19777#(and (or (< 38 main_n) (and (<= 148 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 38) (<= main_i 148)))} is VALID [2019-01-31 14:36:13,590 INFO L273 TraceCheckUtils]: 74: Hoare triple {19777#(and (or (< 38 main_n) (and (<= 148 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 38) (<= main_i 148)))} assume i <= n * 4; {19777#(and (or (< 38 main_n) (and (<= 148 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 38) (<= main_i 148)))} is VALID [2019-01-31 14:36:13,591 INFO L273 TraceCheckUtils]: 75: Hoare triple {19777#(and (or (< 38 main_n) (and (<= 148 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 38) (<= main_i 148)))} assume a[i] != 23;i := i + 4; {19778#(and (or (and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (<= (* 4 main_n) main_i)) (< 38 main_n)) (or (<= main_n 38) (<= main_i 152)))} is VALID [2019-01-31 14:36:13,592 INFO L273 TraceCheckUtils]: 76: Hoare triple {19778#(and (or (and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (<= (* 4 main_n) main_i)) (< 38 main_n)) (or (<= main_n 38) (<= main_i 152)))} assume i <= n * 4; {19779#(and (or (< 38 main_n) (and (<= (* 4 main_n) main_i) (<= main_i (* 4 main_n)) (= 23 (select main_a main_i)))) (<= main_i 152))} is VALID [2019-01-31 14:36:13,593 INFO L273 TraceCheckUtils]: 77: Hoare triple {19779#(and (or (< 38 main_n) (and (<= (* 4 main_n) main_i) (<= main_i (* 4 main_n)) (= 23 (select main_a main_i)))) (<= main_i 152))} assume a[i] != 23;i := i + 4; {19780#(and (<= main_i 156) (< 38 main_n))} is VALID [2019-01-31 14:36:13,594 INFO L273 TraceCheckUtils]: 78: Hoare triple {19780#(and (<= main_i 156) (< 38 main_n))} assume !(i <= n * 4); {19739#false} is VALID [2019-01-31 14:36:13,623 INFO L134 CoverageAnalysis]: Checked inductivity of 1482 backedges. 0 proven. 1482 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-31 14:36:13,623 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-31 14:36:13,623 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-01-31 14:36:13,623 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-01-31 14:36:13,623 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-01-31 14:36:13,623 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-31 14:36:13,624 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 14:36:13,631 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2019-01-31 14:36:13,632 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST2 (IT: FPandBP) [2019-01-31 14:36:13,684 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 39 check-sat command(s) [2019-01-31 14:36:13,684 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-01-31 14:36:13,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-31 14:36:13,698 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-31 14:36:13,726 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 14:36:13,728 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-01-31 14:36:13,733 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-31 14:36:13,733 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2019-01-31 14:36:13,735 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-01-31 14:36:13,736 WARN L398 uantifierElimination]: Input elimination task: ∃ [v_main_a_42]. (and (= (store v_main_a_42 (* 4 main_n) 23) main_a) (= main_i 0)) [2019-01-31 14:36:13,736 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2019-01-31 14:36:16,273 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2019-01-31 14:36:16,275 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-01-31 14:36:16,281 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-31 14:36:16,281 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2019-01-31 14:36:16,284 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-01-31 14:36:16,284 WARN L398 uantifierElimination]: Input elimination task: ∃ [main_a]. (let ((.cse0 (* 4 main_n))) (and (<= main_i 156) (<= 152 .cse0) (not (= (select main_a 152) 23)) (= 23 (select main_a .cse0)))) [2019-01-31 14:36:16,284 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (let ((.cse0 (* 4 main_n))) (and (<= main_i 156) (<= 152 .cse0) (not (= 152 .cse0)))) [2019-01-31 14:36:16,334 INFO L273 TraceCheckUtils]: 0: Hoare triple {19738#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {19784#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:36:16,334 INFO L273 TraceCheckUtils]: 1: Hoare triple {19784#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {19788#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2019-01-31 14:36:16,335 INFO L273 TraceCheckUtils]: 2: Hoare triple {19788#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume i <= n * 4; {19788#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2019-01-31 14:36:16,335 INFO L273 TraceCheckUtils]: 3: Hoare triple {19788#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume a[i] != 23;i := i + 4; {19795#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:36:16,336 INFO L273 TraceCheckUtils]: 4: Hoare triple {19795#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {19795#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:36:16,337 INFO L273 TraceCheckUtils]: 5: Hoare triple {19795#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {19802#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2019-01-31 14:36:16,337 INFO L273 TraceCheckUtils]: 6: Hoare triple {19802#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume i <= n * 4; {19802#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2019-01-31 14:36:16,338 INFO L273 TraceCheckUtils]: 7: Hoare triple {19802#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume a[i] != 23;i := i + 4; {19809#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:36:16,339 INFO L273 TraceCheckUtils]: 8: Hoare triple {19809#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {19809#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:36:16,339 INFO L273 TraceCheckUtils]: 9: Hoare triple {19809#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {19816#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:36:16,340 INFO L273 TraceCheckUtils]: 10: Hoare triple {19816#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {19816#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:36:16,341 INFO L273 TraceCheckUtils]: 11: Hoare triple {19816#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {19823#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:36:16,341 INFO L273 TraceCheckUtils]: 12: Hoare triple {19823#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {19823#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:36:16,342 INFO L273 TraceCheckUtils]: 13: Hoare triple {19823#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {19830#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:36:16,343 INFO L273 TraceCheckUtils]: 14: Hoare triple {19830#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {19830#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:36:16,344 INFO L273 TraceCheckUtils]: 15: Hoare triple {19830#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {19837#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:36:16,344 INFO L273 TraceCheckUtils]: 16: Hoare triple {19837#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {19837#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:36:16,345 INFO L273 TraceCheckUtils]: 17: Hoare triple {19837#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {19844#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:36:16,346 INFO L273 TraceCheckUtils]: 18: Hoare triple {19844#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {19844#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:36:16,346 INFO L273 TraceCheckUtils]: 19: Hoare triple {19844#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {19851#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:36:16,347 INFO L273 TraceCheckUtils]: 20: Hoare triple {19851#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {19851#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:36:16,348 INFO L273 TraceCheckUtils]: 21: Hoare triple {19851#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {19858#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:36:16,348 INFO L273 TraceCheckUtils]: 22: Hoare triple {19858#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {19858#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:36:16,349 INFO L273 TraceCheckUtils]: 23: Hoare triple {19858#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {19865#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:36:16,350 INFO L273 TraceCheckUtils]: 24: Hoare triple {19865#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {19865#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:36:16,350 INFO L273 TraceCheckUtils]: 25: Hoare triple {19865#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {19872#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:36:16,351 INFO L273 TraceCheckUtils]: 26: Hoare triple {19872#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {19872#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:36:16,352 INFO L273 TraceCheckUtils]: 27: Hoare triple {19872#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {19879#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:36:16,352 INFO L273 TraceCheckUtils]: 28: Hoare triple {19879#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {19879#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:36:16,353 INFO L273 TraceCheckUtils]: 29: Hoare triple {19879#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {19886#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:36:16,354 INFO L273 TraceCheckUtils]: 30: Hoare triple {19886#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {19886#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:36:16,354 INFO L273 TraceCheckUtils]: 31: Hoare triple {19886#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {19893#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:36:16,355 INFO L273 TraceCheckUtils]: 32: Hoare triple {19893#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {19893#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:36:16,356 INFO L273 TraceCheckUtils]: 33: Hoare triple {19893#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {19900#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:36:16,356 INFO L273 TraceCheckUtils]: 34: Hoare triple {19900#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {19900#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:36:16,357 INFO L273 TraceCheckUtils]: 35: Hoare triple {19900#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {19907#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:36:16,358 INFO L273 TraceCheckUtils]: 36: Hoare triple {19907#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {19907#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:36:16,359 INFO L273 TraceCheckUtils]: 37: Hoare triple {19907#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {19914#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:36:16,359 INFO L273 TraceCheckUtils]: 38: Hoare triple {19914#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {19914#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:36:16,360 INFO L273 TraceCheckUtils]: 39: Hoare triple {19914#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {19921#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} is VALID [2019-01-31 14:36:16,361 INFO L273 TraceCheckUtils]: 40: Hoare triple {19921#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} assume i <= n * 4; {19921#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} is VALID [2019-01-31 14:36:16,361 INFO L273 TraceCheckUtils]: 41: Hoare triple {19921#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} assume a[i] != 23;i := i + 4; {19928#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:36:16,362 INFO L273 TraceCheckUtils]: 42: Hoare triple {19928#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {19928#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:36:16,363 INFO L273 TraceCheckUtils]: 43: Hoare triple {19928#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {19935#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:36:16,363 INFO L273 TraceCheckUtils]: 44: Hoare triple {19935#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {19935#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:36:16,364 INFO L273 TraceCheckUtils]: 45: Hoare triple {19935#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {19942#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:36:16,365 INFO L273 TraceCheckUtils]: 46: Hoare triple {19942#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {19942#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:36:16,365 INFO L273 TraceCheckUtils]: 47: Hoare triple {19942#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {19949#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:36:16,366 INFO L273 TraceCheckUtils]: 48: Hoare triple {19949#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {19949#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:36:16,367 INFO L273 TraceCheckUtils]: 49: Hoare triple {19949#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {19956#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:36:16,367 INFO L273 TraceCheckUtils]: 50: Hoare triple {19956#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {19956#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:36:16,368 INFO L273 TraceCheckUtils]: 51: Hoare triple {19956#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {19963#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:36:16,369 INFO L273 TraceCheckUtils]: 52: Hoare triple {19963#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {19963#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:36:16,370 INFO L273 TraceCheckUtils]: 53: Hoare triple {19963#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {19970#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:36:16,370 INFO L273 TraceCheckUtils]: 54: Hoare triple {19970#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {19970#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:36:16,371 INFO L273 TraceCheckUtils]: 55: Hoare triple {19970#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {19977#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:36:16,372 INFO L273 TraceCheckUtils]: 56: Hoare triple {19977#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {19977#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:36:16,372 INFO L273 TraceCheckUtils]: 57: Hoare triple {19977#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {19984#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:36:16,373 INFO L273 TraceCheckUtils]: 58: Hoare triple {19984#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {19984#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:36:16,374 INFO L273 TraceCheckUtils]: 59: Hoare triple {19984#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {19991#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:36:16,374 INFO L273 TraceCheckUtils]: 60: Hoare triple {19991#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {19991#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:36:16,375 INFO L273 TraceCheckUtils]: 61: Hoare triple {19991#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {19998#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:36:16,376 INFO L273 TraceCheckUtils]: 62: Hoare triple {19998#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {19998#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:36:16,376 INFO L273 TraceCheckUtils]: 63: Hoare triple {19998#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {20005#(and (= main_i 128) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:36:16,377 INFO L273 TraceCheckUtils]: 64: Hoare triple {20005#(and (= main_i 128) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {20005#(and (= main_i 128) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:36:16,378 INFO L273 TraceCheckUtils]: 65: Hoare triple {20005#(and (= main_i 128) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {20012#(and (= main_i 132) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:36:16,378 INFO L273 TraceCheckUtils]: 66: Hoare triple {20012#(and (= main_i 132) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {20012#(and (= main_i 132) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:36:16,379 INFO L273 TraceCheckUtils]: 67: Hoare triple {20012#(and (= main_i 132) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {20019#(and (= main_i 136) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:36:16,380 INFO L273 TraceCheckUtils]: 68: Hoare triple {20019#(and (= main_i 136) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {20019#(and (= main_i 136) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:36:16,381 INFO L273 TraceCheckUtils]: 69: Hoare triple {20019#(and (= main_i 136) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {20026#(and (= 23 (select main_a (* 4 main_n))) (= main_i 140))} is VALID [2019-01-31 14:36:16,381 INFO L273 TraceCheckUtils]: 70: Hoare triple {20026#(and (= 23 (select main_a (* 4 main_n))) (= main_i 140))} assume i <= n * 4; {20026#(and (= 23 (select main_a (* 4 main_n))) (= main_i 140))} is VALID [2019-01-31 14:36:16,382 INFO L273 TraceCheckUtils]: 71: Hoare triple {20026#(and (= 23 (select main_a (* 4 main_n))) (= main_i 140))} assume a[i] != 23;i := i + 4; {20033#(and (= main_i 144) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:36:16,383 INFO L273 TraceCheckUtils]: 72: Hoare triple {20033#(and (= main_i 144) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {20033#(and (= main_i 144) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:36:16,383 INFO L273 TraceCheckUtils]: 73: Hoare triple {20033#(and (= main_i 144) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {20040#(and (= main_i 148) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:36:16,384 INFO L273 TraceCheckUtils]: 74: Hoare triple {20040#(and (= main_i 148) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {20040#(and (= main_i 148) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:36:16,385 INFO L273 TraceCheckUtils]: 75: Hoare triple {20040#(and (= main_i 148) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {20047#(and (= main_i 152) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:36:16,385 INFO L273 TraceCheckUtils]: 76: Hoare triple {20047#(and (= main_i 152) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {20051#(and (<= main_i (* 4 main_n)) (= main_i 152) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:36:16,386 INFO L273 TraceCheckUtils]: 77: Hoare triple {20051#(and (<= main_i (* 4 main_n)) (= main_i 152) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {19780#(and (<= main_i 156) (< 38 main_n))} is VALID [2019-01-31 14:36:16,387 INFO L273 TraceCheckUtils]: 78: Hoare triple {19780#(and (<= main_i 156) (< 38 main_n))} assume !(i <= n * 4); {19739#false} is VALID [2019-01-31 14:36:16,403 INFO L134 CoverageAnalysis]: Checked inductivity of 1482 backedges. 0 proven. 1482 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-31 14:36:16,403 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2019-01-31 14:36:20,998 INFO L273 TraceCheckUtils]: 78: Hoare triple {20058#(<= main_i (* 4 main_n))} assume !(i <= n * 4); {19739#false} is VALID [2019-01-31 14:36:20,999 INFO L273 TraceCheckUtils]: 77: Hoare triple {20062#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} assume a[i] != 23;i := i + 4; {20058#(<= main_i (* 4 main_n))} is VALID [2019-01-31 14:36:20,999 INFO L273 TraceCheckUtils]: 76: Hoare triple {20066#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} assume i <= n * 4; {20062#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} is VALID [2019-01-31 14:36:21,000 INFO L273 TraceCheckUtils]: 75: Hoare triple {20070#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume a[i] != 23;i := i + 4; {20066#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} is VALID [2019-01-31 14:36:21,000 INFO L273 TraceCheckUtils]: 74: Hoare triple {20070#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume i <= n * 4; {20070#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2019-01-31 14:36:21,001 INFO L273 TraceCheckUtils]: 73: Hoare triple {20077#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume a[i] != 23;i := i + 4; {20070#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2019-01-31 14:36:21,002 INFO L273 TraceCheckUtils]: 72: Hoare triple {20077#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume i <= n * 4; {20077#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2019-01-31 14:36:21,003 INFO L273 TraceCheckUtils]: 71: Hoare triple {20084#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume a[i] != 23;i := i + 4; {20077#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2019-01-31 14:36:21,003 INFO L273 TraceCheckUtils]: 70: Hoare triple {20084#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume i <= n * 4; {20084#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2019-01-31 14:36:21,004 INFO L273 TraceCheckUtils]: 69: Hoare triple {20091#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume a[i] != 23;i := i + 4; {20084#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2019-01-31 14:36:21,005 INFO L273 TraceCheckUtils]: 68: Hoare triple {20091#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume i <= n * 4; {20091#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2019-01-31 14:36:21,006 INFO L273 TraceCheckUtils]: 67: Hoare triple {20098#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {20091#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2019-01-31 14:36:21,006 INFO L273 TraceCheckUtils]: 66: Hoare triple {20098#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume i <= n * 4; {20098#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2019-01-31 14:36:21,007 INFO L273 TraceCheckUtils]: 65: Hoare triple {20105#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume a[i] != 23;i := i + 4; {20098#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2019-01-31 14:36:21,008 INFO L273 TraceCheckUtils]: 64: Hoare triple {20105#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume i <= n * 4; {20105#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2019-01-31 14:36:21,009 INFO L273 TraceCheckUtils]: 63: Hoare triple {20112#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {20105#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2019-01-31 14:36:21,010 INFO L273 TraceCheckUtils]: 62: Hoare triple {20112#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume i <= n * 4; {20112#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2019-01-31 14:36:21,011 INFO L273 TraceCheckUtils]: 61: Hoare triple {20119#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {20112#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2019-01-31 14:36:21,011 INFO L273 TraceCheckUtils]: 60: Hoare triple {20119#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume i <= n * 4; {20119#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2019-01-31 14:36:21,012 INFO L273 TraceCheckUtils]: 59: Hoare triple {20126#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {20119#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2019-01-31 14:36:21,013 INFO L273 TraceCheckUtils]: 58: Hoare triple {20126#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume i <= n * 4; {20126#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2019-01-31 14:36:21,014 INFO L273 TraceCheckUtils]: 57: Hoare triple {20133#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} assume a[i] != 23;i := i + 4; {20126#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2019-01-31 14:36:21,014 INFO L273 TraceCheckUtils]: 56: Hoare triple {20133#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} assume i <= n * 4; {20133#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} is VALID [2019-01-31 14:36:21,015 INFO L273 TraceCheckUtils]: 55: Hoare triple {20140#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {20133#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} is VALID [2019-01-31 14:36:21,016 INFO L273 TraceCheckUtils]: 54: Hoare triple {20140#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} assume i <= n * 4; {20140#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} is VALID [2019-01-31 14:36:21,017 INFO L273 TraceCheckUtils]: 53: Hoare triple {20147#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {20140#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} is VALID [2019-01-31 14:36:21,018 INFO L273 TraceCheckUtils]: 52: Hoare triple {20147#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} assume i <= n * 4; {20147#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} is VALID [2019-01-31 14:36:21,019 INFO L273 TraceCheckUtils]: 51: Hoare triple {20154#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} assume a[i] != 23;i := i + 4; {20147#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} is VALID [2019-01-31 14:36:21,019 INFO L273 TraceCheckUtils]: 50: Hoare triple {20154#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} assume i <= n * 4; {20154#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} is VALID [2019-01-31 14:36:21,020 INFO L273 TraceCheckUtils]: 49: Hoare triple {20161#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {20154#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} is VALID [2019-01-31 14:36:21,021 INFO L273 TraceCheckUtils]: 48: Hoare triple {20161#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} assume i <= n * 4; {20161#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} is VALID [2019-01-31 14:36:21,022 INFO L273 TraceCheckUtils]: 47: Hoare triple {20168#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} assume a[i] != 23;i := i + 4; {20161#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} is VALID [2019-01-31 14:36:21,022 INFO L273 TraceCheckUtils]: 46: Hoare triple {20168#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} assume i <= n * 4; {20168#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} is VALID [2019-01-31 14:36:21,023 INFO L273 TraceCheckUtils]: 45: Hoare triple {20175#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} assume a[i] != 23;i := i + 4; {20168#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} is VALID [2019-01-31 14:36:21,024 INFO L273 TraceCheckUtils]: 44: Hoare triple {20175#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} assume i <= n * 4; {20175#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} is VALID [2019-01-31 14:36:21,025 INFO L273 TraceCheckUtils]: 43: Hoare triple {20182#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} assume a[i] != 23;i := i + 4; {20175#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} is VALID [2019-01-31 14:36:21,026 INFO L273 TraceCheckUtils]: 42: Hoare triple {20182#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} assume i <= n * 4; {20182#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} is VALID [2019-01-31 14:36:21,027 INFO L273 TraceCheckUtils]: 41: Hoare triple {20189#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} assume a[i] != 23;i := i + 4; {20182#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} is VALID [2019-01-31 14:36:21,027 INFO L273 TraceCheckUtils]: 40: Hoare triple {20189#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} assume i <= n * 4; {20189#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} is VALID [2019-01-31 14:36:21,028 INFO L273 TraceCheckUtils]: 39: Hoare triple {20196#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} assume a[i] != 23;i := i + 4; {20189#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} is VALID [2019-01-31 14:36:21,029 INFO L273 TraceCheckUtils]: 38: Hoare triple {20196#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} assume i <= n * 4; {20196#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} is VALID [2019-01-31 14:36:21,030 INFO L273 TraceCheckUtils]: 37: Hoare triple {20203#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} assume a[i] != 23;i := i + 4; {20196#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} is VALID [2019-01-31 14:36:21,030 INFO L273 TraceCheckUtils]: 36: Hoare triple {20203#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} assume i <= n * 4; {20203#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} is VALID [2019-01-31 14:36:21,031 INFO L273 TraceCheckUtils]: 35: Hoare triple {20210#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {20203#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} is VALID [2019-01-31 14:36:21,032 INFO L273 TraceCheckUtils]: 34: Hoare triple {20210#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} assume i <= n * 4; {20210#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} is VALID [2019-01-31 14:36:21,033 INFO L273 TraceCheckUtils]: 33: Hoare triple {20217#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {20210#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} is VALID [2019-01-31 14:36:21,034 INFO L273 TraceCheckUtils]: 32: Hoare triple {20217#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} assume i <= n * 4; {20217#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} is VALID [2019-01-31 14:36:21,035 INFO L273 TraceCheckUtils]: 31: Hoare triple {20224#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {20217#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} is VALID [2019-01-31 14:36:21,035 INFO L273 TraceCheckUtils]: 30: Hoare triple {20224#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} assume i <= n * 4; {20224#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} is VALID [2019-01-31 14:36:21,036 INFO L273 TraceCheckUtils]: 29: Hoare triple {20231#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} assume a[i] != 23;i := i + 4; {20224#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} is VALID [2019-01-31 14:36:21,037 INFO L273 TraceCheckUtils]: 28: Hoare triple {20231#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} assume i <= n * 4; {20231#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} is VALID [2019-01-31 14:36:21,038 INFO L273 TraceCheckUtils]: 27: Hoare triple {20238#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {20231#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} is VALID [2019-01-31 14:36:21,038 INFO L273 TraceCheckUtils]: 26: Hoare triple {20238#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} assume i <= n * 4; {20238#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} is VALID [2019-01-31 14:36:21,040 INFO L273 TraceCheckUtils]: 25: Hoare triple {20245#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} assume a[i] != 23;i := i + 4; {20238#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} is VALID [2019-01-31 14:36:21,040 INFO L273 TraceCheckUtils]: 24: Hoare triple {20245#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} assume i <= n * 4; {20245#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} is VALID [2019-01-31 14:36:21,041 INFO L273 TraceCheckUtils]: 23: Hoare triple {20252#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} assume a[i] != 23;i := i + 4; {20245#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} is VALID [2019-01-31 14:36:21,042 INFO L273 TraceCheckUtils]: 22: Hoare triple {20252#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} assume i <= n * 4; {20252#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} is VALID [2019-01-31 14:36:21,043 INFO L273 TraceCheckUtils]: 21: Hoare triple {20259#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} assume a[i] != 23;i := i + 4; {20252#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} is VALID [2019-01-31 14:36:21,043 INFO L273 TraceCheckUtils]: 20: Hoare triple {20259#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} assume i <= n * 4; {20259#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} is VALID [2019-01-31 14:36:21,045 INFO L273 TraceCheckUtils]: 19: Hoare triple {20266#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {20259#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} is VALID [2019-01-31 14:36:21,045 INFO L273 TraceCheckUtils]: 18: Hoare triple {20266#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} assume i <= n * 4; {20266#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} is VALID [2019-01-31 14:36:21,046 INFO L273 TraceCheckUtils]: 17: Hoare triple {20273#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {20266#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} is VALID [2019-01-31 14:36:21,047 INFO L273 TraceCheckUtils]: 16: Hoare triple {20273#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} assume i <= n * 4; {20273#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} is VALID [2019-01-31 14:36:21,048 INFO L273 TraceCheckUtils]: 15: Hoare triple {20280#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} assume a[i] != 23;i := i + 4; {20273#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} is VALID [2019-01-31 14:36:21,048 INFO L273 TraceCheckUtils]: 14: Hoare triple {20280#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} assume i <= n * 4; {20280#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} is VALID [2019-01-31 14:36:21,049 INFO L273 TraceCheckUtils]: 13: Hoare triple {20287#(or (< (* 4 main_n) (+ main_i 128)) (= (select main_a (+ main_i 128)) 23) (< (+ main_i 131) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {20280#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} is VALID [2019-01-31 14:36:21,050 INFO L273 TraceCheckUtils]: 12: Hoare triple {20287#(or (< (* 4 main_n) (+ main_i 128)) (= (select main_a (+ main_i 128)) 23) (< (+ main_i 131) (* 4 main_n)))} assume i <= n * 4; {20287#(or (< (* 4 main_n) (+ main_i 128)) (= (select main_a (+ main_i 128)) 23) (< (+ main_i 131) (* 4 main_n)))} is VALID [2019-01-31 14:36:21,056 INFO L273 TraceCheckUtils]: 11: Hoare triple {20294#(or (< (* 4 main_n) (+ main_i 132)) (< (+ main_i 135) (* 4 main_n)) (= (select main_a (+ main_i 132)) 23))} assume a[i] != 23;i := i + 4; {20287#(or (< (* 4 main_n) (+ main_i 128)) (= (select main_a (+ main_i 128)) 23) (< (+ main_i 131) (* 4 main_n)))} is VALID [2019-01-31 14:36:21,057 INFO L273 TraceCheckUtils]: 10: Hoare triple {20294#(or (< (* 4 main_n) (+ main_i 132)) (< (+ main_i 135) (* 4 main_n)) (= (select main_a (+ main_i 132)) 23))} assume i <= n * 4; {20294#(or (< (* 4 main_n) (+ main_i 132)) (< (+ main_i 135) (* 4 main_n)) (= (select main_a (+ main_i 132)) 23))} is VALID [2019-01-31 14:36:21,058 INFO L273 TraceCheckUtils]: 9: Hoare triple {20301#(or (< (+ main_i 139) (* 4 main_n)) (= (select main_a (+ main_i 136)) 23) (< (* 4 main_n) (+ main_i 136)))} assume a[i] != 23;i := i + 4; {20294#(or (< (* 4 main_n) (+ main_i 132)) (< (+ main_i 135) (* 4 main_n)) (= (select main_a (+ main_i 132)) 23))} is VALID [2019-01-31 14:36:21,058 INFO L273 TraceCheckUtils]: 8: Hoare triple {20301#(or (< (+ main_i 139) (* 4 main_n)) (= (select main_a (+ main_i 136)) 23) (< (* 4 main_n) (+ main_i 136)))} assume i <= n * 4; {20301#(or (< (+ main_i 139) (* 4 main_n)) (= (select main_a (+ main_i 136)) 23) (< (* 4 main_n) (+ main_i 136)))} is VALID [2019-01-31 14:36:21,059 INFO L273 TraceCheckUtils]: 7: Hoare triple {20308#(or (< (* 4 main_n) (+ main_i 140)) (< (+ main_i 143) (* 4 main_n)) (= (select main_a (+ main_i 140)) 23))} assume a[i] != 23;i := i + 4; {20301#(or (< (+ main_i 139) (* 4 main_n)) (= (select main_a (+ main_i 136)) 23) (< (* 4 main_n) (+ main_i 136)))} is VALID [2019-01-31 14:36:21,059 INFO L273 TraceCheckUtils]: 6: Hoare triple {20308#(or (< (* 4 main_n) (+ main_i 140)) (< (+ main_i 143) (* 4 main_n)) (= (select main_a (+ main_i 140)) 23))} assume i <= n * 4; {20308#(or (< (* 4 main_n) (+ main_i 140)) (< (+ main_i 143) (* 4 main_n)) (= (select main_a (+ main_i 140)) 23))} is VALID [2019-01-31 14:36:21,060 INFO L273 TraceCheckUtils]: 5: Hoare triple {20315#(or (= (select main_a (+ main_i 144)) 23) (< (+ main_i 147) (* 4 main_n)) (< (* 4 main_n) (+ main_i 144)))} assume a[i] != 23;i := i + 4; {20308#(or (< (* 4 main_n) (+ main_i 140)) (< (+ main_i 143) (* 4 main_n)) (= (select main_a (+ main_i 140)) 23))} is VALID [2019-01-31 14:36:21,060 INFO L273 TraceCheckUtils]: 4: Hoare triple {20315#(or (= (select main_a (+ main_i 144)) 23) (< (+ main_i 147) (* 4 main_n)) (< (* 4 main_n) (+ main_i 144)))} assume i <= n * 4; {20315#(or (= (select main_a (+ main_i 144)) 23) (< (+ main_i 147) (* 4 main_n)) (< (* 4 main_n) (+ main_i 144)))} is VALID [2019-01-31 14:36:21,061 INFO L273 TraceCheckUtils]: 3: Hoare triple {20322#(or (< (+ main_i 151) (* 4 main_n)) (< (* 4 main_n) (+ main_i 148)) (= (select main_a (+ main_i 148)) 23))} assume a[i] != 23;i := i + 4; {20315#(or (= (select main_a (+ main_i 144)) 23) (< (+ main_i 147) (* 4 main_n)) (< (* 4 main_n) (+ main_i 144)))} is VALID [2019-01-31 14:36:21,061 INFO L273 TraceCheckUtils]: 2: Hoare triple {20322#(or (< (+ main_i 151) (* 4 main_n)) (< (* 4 main_n) (+ main_i 148)) (= (select main_a (+ main_i 148)) 23))} assume i <= n * 4; {20322#(or (< (+ main_i 151) (* 4 main_n)) (< (* 4 main_n) (+ main_i 148)) (= (select main_a (+ main_i 148)) 23))} is VALID [2019-01-31 14:36:21,062 INFO L273 TraceCheckUtils]: 1: Hoare triple {20329#(or (= 23 (select main_a (+ main_i 152))) (< (+ main_i 155) (* 4 main_n)) (< (* 4 main_n) (+ main_i 152)))} assume a[i] != 23;i := i + 4; {20322#(or (< (+ main_i 151) (* 4 main_n)) (< (* 4 main_n) (+ main_i 148)) (= (select main_a (+ main_i 148)) 23))} is VALID [2019-01-31 14:36:21,063 INFO L273 TraceCheckUtils]: 0: Hoare triple {19738#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {20329#(or (= 23 (select main_a (+ main_i 152))) (< (+ main_i 155) (* 4 main_n)) (< (* 4 main_n) (+ main_i 152)))} is VALID [2019-01-31 14:36:21,087 INFO L134 CoverageAnalysis]: Checked inductivity of 1482 backedges. 0 proven. 1482 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-31 14:36:21,106 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-01-31 14:36:21,106 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [41, 41, 41] total 122 [2019-01-31 14:36:21,106 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-01-31 14:36:21,106 INFO L78 Accepts]: Start accepts. Automaton has 83 states. Word has length 79 [2019-01-31 14:36:21,107 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-01-31 14:36:21,107 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 83 states. [2019-01-31 14:36:21,298 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 157 edges. 157 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-01-31 14:36:21,299 INFO L459 AbstractCegarLoop]: Interpolant automaton has 83 states [2019-01-31 14:36:21,299 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 83 interpolants. [2019-01-31 14:36:21,299 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1894, Invalid=13358, Unknown=0, NotChecked=0, Total=15252 [2019-01-31 14:36:21,300 INFO L87 Difference]: Start difference. First operand 80 states and 80 transitions. Second operand 83 states. [2019-01-31 14:36:31,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 14:36:31,237 INFO L93 Difference]: Finished difference Result 84 states and 84 transitions. [2019-01-31 14:36:31,237 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2019-01-31 14:36:31,238 INFO L78 Accepts]: Start accepts. Automaton has 83 states. Word has length 79 [2019-01-31 14:36:31,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-31 14:36:31,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 83 states. [2019-01-31 14:36:31,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 84 transitions. [2019-01-31 14:36:31,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 83 states. [2019-01-31 14:36:31,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 84 transitions. [2019-01-31 14:36:31,240 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 43 states and 84 transitions. [2019-01-31 14:36:31,331 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 84 edges. 84 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-01-31 14:36:31,332 INFO L225 Difference]: With dead ends: 84 [2019-01-31 14:36:31,332 INFO L226 Difference]: Without dead ends: 83 [2019-01-31 14:36:31,333 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 197 GetRequests, 74 SyntacticMatches, 1 SemanticMatches, 122 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3440 ImplicationChecksByTransitivity, 8.7s TimeCoverageRelationStatistics Valid=1894, Invalid=13358, Unknown=0, NotChecked=0, Total=15252 [2019-01-31 14:36:31,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2019-01-31 14:36:31,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 82. [2019-01-31 14:36:31,405 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-01-31 14:36:31,405 INFO L82 GeneralOperation]: Start isEquivalent. First operand 83 states. Second operand 82 states. [2019-01-31 14:36:31,406 INFO L74 IsIncluded]: Start isIncluded. First operand 83 states. Second operand 82 states. [2019-01-31 14:36:31,406 INFO L87 Difference]: Start difference. First operand 83 states. Second operand 82 states. [2019-01-31 14:36:31,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 14:36:31,407 INFO L93 Difference]: Finished difference Result 83 states and 83 transitions. [2019-01-31 14:36:31,407 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 83 transitions. [2019-01-31 14:36:31,408 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-31 14:36:31,408 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-01-31 14:36:31,408 INFO L74 IsIncluded]: Start isIncluded. First operand 82 states. Second operand 83 states. [2019-01-31 14:36:31,408 INFO L87 Difference]: Start difference. First operand 82 states. Second operand 83 states. [2019-01-31 14:36:31,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 14:36:31,409 INFO L93 Difference]: Finished difference Result 83 states and 83 transitions. [2019-01-31 14:36:31,409 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 83 transitions. [2019-01-31 14:36:31,409 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-31 14:36:31,409 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-01-31 14:36:31,409 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-01-31 14:36:31,409 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-01-31 14:36:31,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82 states. [2019-01-31 14:36:31,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 82 transitions. [2019-01-31 14:36:31,410 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 82 transitions. Word has length 79 [2019-01-31 14:36:31,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-31 14:36:31,410 INFO L480 AbstractCegarLoop]: Abstraction has 82 states and 82 transitions. [2019-01-31 14:36:31,410 INFO L481 AbstractCegarLoop]: Interpolant automaton has 83 states. [2019-01-31 14:36:31,410 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 82 transitions. [2019-01-31 14:36:31,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2019-01-31 14:36:31,411 INFO L394 BasicCegarLoop]: Found error trace [2019-01-31 14:36:31,411 INFO L402 BasicCegarLoop]: trace histogram [40, 39, 1, 1] [2019-01-31 14:36:31,411 INFO L423 AbstractCegarLoop]: === Iteration 40 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-01-31 14:36:31,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-31 14:36:31,411 INFO L82 PathProgramCache]: Analyzing trace with hash 1203886190, now seen corresponding path program 39 times [2019-01-31 14:36:31,411 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-01-31 14:36:31,412 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-31 14:36:31,412 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-01-31 14:36:31,412 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-31 14:36:31,412 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-01-31 14:36:31,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-31 14:36:33,846 INFO L273 TraceCheckUtils]: 0: Hoare triple {20745#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {20747#(and (or (<= main_n 39) (<= main_i 0)) (or (< 39 main_n) (and (<= 0 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:36:33,847 INFO L273 TraceCheckUtils]: 1: Hoare triple {20747#(and (or (<= main_n 39) (<= main_i 0)) (or (< 39 main_n) (and (<= 0 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {20748#(and (or (<= main_n 39) (<= main_i 4)) (or (< 39 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i))))} is VALID [2019-01-31 14:36:33,848 INFO L273 TraceCheckUtils]: 2: Hoare triple {20748#(and (or (<= main_n 39) (<= main_i 4)) (or (< 39 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i))))} assume i <= n * 4; {20748#(and (or (<= main_n 39) (<= main_i 4)) (or (< 39 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i))))} is VALID [2019-01-31 14:36:33,848 INFO L273 TraceCheckUtils]: 3: Hoare triple {20748#(and (or (<= main_n 39) (<= main_i 4)) (or (< 39 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i))))} assume a[i] != 23;i := i + 4; {20749#(and (or (< 39 main_n) (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 8) (<= main_n 39)))} is VALID [2019-01-31 14:36:33,850 INFO L273 TraceCheckUtils]: 4: Hoare triple {20749#(and (or (< 39 main_n) (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 8) (<= main_n 39)))} assume i <= n * 4; {20749#(and (or (< 39 main_n) (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 8) (<= main_n 39)))} is VALID [2019-01-31 14:36:33,851 INFO L273 TraceCheckUtils]: 5: Hoare triple {20749#(and (or (< 39 main_n) (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 8) (<= main_n 39)))} assume a[i] != 23;i := i + 4; {20750#(and (or (< 39 main_n) (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 39) (<= main_i 12)))} is VALID [2019-01-31 14:36:33,852 INFO L273 TraceCheckUtils]: 6: Hoare triple {20750#(and (or (< 39 main_n) (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 39) (<= main_i 12)))} assume i <= n * 4; {20750#(and (or (< 39 main_n) (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 39) (<= main_i 12)))} is VALID [2019-01-31 14:36:33,853 INFO L273 TraceCheckUtils]: 7: Hoare triple {20750#(and (or (< 39 main_n) (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 39) (<= main_i 12)))} assume a[i] != 23;i := i + 4; {20751#(and (or (< 39 main_n) (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 39) (<= main_i 16)))} is VALID [2019-01-31 14:36:33,854 INFO L273 TraceCheckUtils]: 8: Hoare triple {20751#(and (or (< 39 main_n) (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 39) (<= main_i 16)))} assume i <= n * 4; {20751#(and (or (< 39 main_n) (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 39) (<= main_i 16)))} is VALID [2019-01-31 14:36:33,855 INFO L273 TraceCheckUtils]: 9: Hoare triple {20751#(and (or (< 39 main_n) (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 39) (<= main_i 16)))} assume a[i] != 23;i := i + 4; {20752#(and (or (< 39 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 39) (<= main_i 20)))} is VALID [2019-01-31 14:36:33,856 INFO L273 TraceCheckUtils]: 10: Hoare triple {20752#(and (or (< 39 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 39) (<= main_i 20)))} assume i <= n * 4; {20752#(and (or (< 39 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 39) (<= main_i 20)))} is VALID [2019-01-31 14:36:33,857 INFO L273 TraceCheckUtils]: 11: Hoare triple {20752#(and (or (< 39 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 39) (<= main_i 20)))} assume a[i] != 23;i := i + 4; {20753#(and (or (<= main_n 39) (<= main_i 24)) (or (< 39 main_n) (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:36:33,858 INFO L273 TraceCheckUtils]: 12: Hoare triple {20753#(and (or (<= main_n 39) (<= main_i 24)) (or (< 39 main_n) (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {20753#(and (or (<= main_n 39) (<= main_i 24)) (or (< 39 main_n) (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:36:33,859 INFO L273 TraceCheckUtils]: 13: Hoare triple {20753#(and (or (<= main_n 39) (<= main_i 24)) (or (< 39 main_n) (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {20754#(and (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 39 main_n)) (or (<= main_n 39) (<= main_i 28)))} is VALID [2019-01-31 14:36:33,860 INFO L273 TraceCheckUtils]: 14: Hoare triple {20754#(and (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 39 main_n)) (or (<= main_n 39) (<= main_i 28)))} assume i <= n * 4; {20754#(and (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 39 main_n)) (or (<= main_n 39) (<= main_i 28)))} is VALID [2019-01-31 14:36:33,861 INFO L273 TraceCheckUtils]: 15: Hoare triple {20754#(and (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 39 main_n)) (or (<= main_n 39) (<= main_i 28)))} assume a[i] != 23;i := i + 4; {20755#(and (or (<= main_i 32) (<= main_n 39)) (or (< 39 main_n) (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:36:33,862 INFO L273 TraceCheckUtils]: 16: Hoare triple {20755#(and (or (<= main_i 32) (<= main_n 39)) (or (< 39 main_n) (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {20755#(and (or (<= main_i 32) (<= main_n 39)) (or (< 39 main_n) (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:36:33,863 INFO L273 TraceCheckUtils]: 17: Hoare triple {20755#(and (or (<= main_i 32) (<= main_n 39)) (or (< 39 main_n) (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {20756#(and (or (< 39 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i))) (or (<= main_i 36) (<= main_n 39)))} is VALID [2019-01-31 14:36:33,864 INFO L273 TraceCheckUtils]: 18: Hoare triple {20756#(and (or (< 39 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i))) (or (<= main_i 36) (<= main_n 39)))} assume i <= n * 4; {20756#(and (or (< 39 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i))) (or (<= main_i 36) (<= main_n 39)))} is VALID [2019-01-31 14:36:33,866 INFO L273 TraceCheckUtils]: 19: Hoare triple {20756#(and (or (< 39 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i))) (or (<= main_i 36) (<= main_n 39)))} assume a[i] != 23;i := i + 4; {20757#(and (or (<= main_i 40) (<= main_n 39)) (or (< 39 main_n) (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:36:33,867 INFO L273 TraceCheckUtils]: 20: Hoare triple {20757#(and (or (<= main_i 40) (<= main_n 39)) (or (< 39 main_n) (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {20757#(and (or (<= main_i 40) (<= main_n 39)) (or (< 39 main_n) (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:36:33,868 INFO L273 TraceCheckUtils]: 21: Hoare triple {20757#(and (or (<= main_i 40) (<= main_n 39)) (or (< 39 main_n) (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {20758#(and (or (< 39 main_n) (and (<= 44 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 39) (<= main_i 44)))} is VALID [2019-01-31 14:36:33,869 INFO L273 TraceCheckUtils]: 22: Hoare triple {20758#(and (or (< 39 main_n) (and (<= 44 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 39) (<= main_i 44)))} assume i <= n * 4; {20758#(and (or (< 39 main_n) (and (<= 44 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 39) (<= main_i 44)))} is VALID [2019-01-31 14:36:33,870 INFO L273 TraceCheckUtils]: 23: Hoare triple {20758#(and (or (< 39 main_n) (and (<= 44 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 39) (<= main_i 44)))} assume a[i] != 23;i := i + 4; {20759#(and (or (<= main_n 39) (<= main_i 48)) (or (and (<= 48 main_i) (= 23 (select main_a (* 4 main_n)))) (< 39 main_n)))} is VALID [2019-01-31 14:36:33,874 INFO L273 TraceCheckUtils]: 24: Hoare triple {20759#(and (or (<= main_n 39) (<= main_i 48)) (or (and (<= 48 main_i) (= 23 (select main_a (* 4 main_n)))) (< 39 main_n)))} assume i <= n * 4; {20759#(and (or (<= main_n 39) (<= main_i 48)) (or (and (<= 48 main_i) (= 23 (select main_a (* 4 main_n)))) (< 39 main_n)))} is VALID [2019-01-31 14:36:33,876 INFO L273 TraceCheckUtils]: 25: Hoare triple {20759#(and (or (<= main_n 39) (<= main_i 48)) (or (and (<= 48 main_i) (= 23 (select main_a (* 4 main_n)))) (< 39 main_n)))} assume a[i] != 23;i := i + 4; {20760#(and (or (< 39 main_n) (and (<= 52 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 52) (<= main_n 39)))} is VALID [2019-01-31 14:36:33,876 INFO L273 TraceCheckUtils]: 26: Hoare triple {20760#(and (or (< 39 main_n) (and (<= 52 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 52) (<= main_n 39)))} assume i <= n * 4; {20760#(and (or (< 39 main_n) (and (<= 52 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 52) (<= main_n 39)))} is VALID [2019-01-31 14:36:33,878 INFO L273 TraceCheckUtils]: 27: Hoare triple {20760#(and (or (< 39 main_n) (and (<= 52 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 52) (<= main_n 39)))} assume a[i] != 23;i := i + 4; {20761#(and (or (<= main_n 39) (<= main_i 56)) (or (< 39 main_n) (and (<= 56 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:36:33,878 INFO L273 TraceCheckUtils]: 28: Hoare triple {20761#(and (or (<= main_n 39) (<= main_i 56)) (or (< 39 main_n) (and (<= 56 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {20761#(and (or (<= main_n 39) (<= main_i 56)) (or (< 39 main_n) (and (<= 56 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:36:33,881 INFO L273 TraceCheckUtils]: 29: Hoare triple {20761#(and (or (<= main_n 39) (<= main_i 56)) (or (< 39 main_n) (and (<= 56 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {20762#(and (or (<= main_n 39) (<= main_i 60)) (or (< 39 main_n) (and (<= 60 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:36:33,881 INFO L273 TraceCheckUtils]: 30: Hoare triple {20762#(and (or (<= main_n 39) (<= main_i 60)) (or (< 39 main_n) (and (<= 60 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {20762#(and (or (<= main_n 39) (<= main_i 60)) (or (< 39 main_n) (and (<= 60 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:36:33,883 INFO L273 TraceCheckUtils]: 31: Hoare triple {20762#(and (or (<= main_n 39) (<= main_i 60)) (or (< 39 main_n) (and (<= 60 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {20763#(and (or (< 39 main_n) (and (<= 64 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 39) (<= main_i 64)))} is VALID [2019-01-31 14:36:33,883 INFO L273 TraceCheckUtils]: 32: Hoare triple {20763#(and (or (< 39 main_n) (and (<= 64 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 39) (<= main_i 64)))} assume i <= n * 4; {20763#(and (or (< 39 main_n) (and (<= 64 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 39) (<= main_i 64)))} is VALID [2019-01-31 14:36:33,885 INFO L273 TraceCheckUtils]: 33: Hoare triple {20763#(and (or (< 39 main_n) (and (<= 64 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 39) (<= main_i 64)))} assume a[i] != 23;i := i + 4; {20764#(and (or (<= main_n 39) (<= main_i 68)) (or (< 39 main_n) (and (<= 68 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:36:33,885 INFO L273 TraceCheckUtils]: 34: Hoare triple {20764#(and (or (<= main_n 39) (<= main_i 68)) (or (< 39 main_n) (and (<= 68 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {20764#(and (or (<= main_n 39) (<= main_i 68)) (or (< 39 main_n) (and (<= 68 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:36:33,887 INFO L273 TraceCheckUtils]: 35: Hoare triple {20764#(and (or (<= main_n 39) (<= main_i 68)) (or (< 39 main_n) (and (<= 68 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {20765#(and (or (<= main_n 39) (<= main_i 72)) (or (< 39 main_n) (and (<= 72 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:36:33,887 INFO L273 TraceCheckUtils]: 36: Hoare triple {20765#(and (or (<= main_n 39) (<= main_i 72)) (or (< 39 main_n) (and (<= 72 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {20765#(and (or (<= main_n 39) (<= main_i 72)) (or (< 39 main_n) (and (<= 72 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:36:33,889 INFO L273 TraceCheckUtils]: 37: Hoare triple {20765#(and (or (<= main_n 39) (<= main_i 72)) (or (< 39 main_n) (and (<= 72 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {20766#(and (or (<= main_i 76) (<= main_n 39)) (or (< 39 main_n) (and (<= 76 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:36:33,891 INFO L273 TraceCheckUtils]: 38: Hoare triple {20766#(and (or (<= main_i 76) (<= main_n 39)) (or (< 39 main_n) (and (<= 76 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {20766#(and (or (<= main_i 76) (<= main_n 39)) (or (< 39 main_n) (and (<= 76 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:36:33,893 INFO L273 TraceCheckUtils]: 39: Hoare triple {20766#(and (or (<= main_i 76) (<= main_n 39)) (or (< 39 main_n) (and (<= 76 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {20767#(and (or (<= main_n 39) (<= main_i 80)) (or (< 39 main_n) (and (<= 80 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:36:33,893 INFO L273 TraceCheckUtils]: 40: Hoare triple {20767#(and (or (<= main_n 39) (<= main_i 80)) (or (< 39 main_n) (and (<= 80 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {20767#(and (or (<= main_n 39) (<= main_i 80)) (or (< 39 main_n) (and (<= 80 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:36:33,895 INFO L273 TraceCheckUtils]: 41: Hoare triple {20767#(and (or (<= main_n 39) (<= main_i 80)) (or (< 39 main_n) (and (<= 80 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {20768#(and (or (< 39 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 84 main_i))) (or (<= main_n 39) (<= main_i 84)))} is VALID [2019-01-31 14:36:33,895 INFO L273 TraceCheckUtils]: 42: Hoare triple {20768#(and (or (< 39 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 84 main_i))) (or (<= main_n 39) (<= main_i 84)))} assume i <= n * 4; {20768#(and (or (< 39 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 84 main_i))) (or (<= main_n 39) (<= main_i 84)))} is VALID [2019-01-31 14:36:33,897 INFO L273 TraceCheckUtils]: 43: Hoare triple {20768#(and (or (< 39 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 84 main_i))) (or (<= main_n 39) (<= main_i 84)))} assume a[i] != 23;i := i + 4; {20769#(and (or (<= main_i 88) (<= main_n 39)) (or (< 39 main_n) (and (<= 88 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:36:33,897 INFO L273 TraceCheckUtils]: 44: Hoare triple {20769#(and (or (<= main_i 88) (<= main_n 39)) (or (< 39 main_n) (and (<= 88 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {20769#(and (or (<= main_i 88) (<= main_n 39)) (or (< 39 main_n) (and (<= 88 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:36:33,899 INFO L273 TraceCheckUtils]: 45: Hoare triple {20769#(and (or (<= main_i 88) (<= main_n 39)) (or (< 39 main_n) (and (<= 88 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {20770#(and (or (< 39 main_n) (and (<= 92 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 92) (<= main_n 39)))} is VALID [2019-01-31 14:36:33,906 INFO L273 TraceCheckUtils]: 46: Hoare triple {20770#(and (or (< 39 main_n) (and (<= 92 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 92) (<= main_n 39)))} assume i <= n * 4; {20770#(and (or (< 39 main_n) (and (<= 92 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 92) (<= main_n 39)))} is VALID [2019-01-31 14:36:33,907 INFO L273 TraceCheckUtils]: 47: Hoare triple {20770#(and (or (< 39 main_n) (and (<= 92 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 92) (<= main_n 39)))} assume a[i] != 23;i := i + 4; {20771#(and (or (< 39 main_n) (and (<= 96 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 96) (<= main_n 39)))} is VALID [2019-01-31 14:36:33,908 INFO L273 TraceCheckUtils]: 48: Hoare triple {20771#(and (or (< 39 main_n) (and (<= 96 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 96) (<= main_n 39)))} assume i <= n * 4; {20771#(and (or (< 39 main_n) (and (<= 96 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 96) (<= main_n 39)))} is VALID [2019-01-31 14:36:33,908 INFO L273 TraceCheckUtils]: 49: Hoare triple {20771#(and (or (< 39 main_n) (and (<= 96 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 96) (<= main_n 39)))} assume a[i] != 23;i := i + 4; {20772#(and (or (< 39 main_n) (and (<= 100 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 100) (<= main_n 39)))} is VALID [2019-01-31 14:36:33,910 INFO L273 TraceCheckUtils]: 50: Hoare triple {20772#(and (or (< 39 main_n) (and (<= 100 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 100) (<= main_n 39)))} assume i <= n * 4; {20772#(and (or (< 39 main_n) (and (<= 100 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 100) (<= main_n 39)))} is VALID [2019-01-31 14:36:33,911 INFO L273 TraceCheckUtils]: 51: Hoare triple {20772#(and (or (< 39 main_n) (and (<= 100 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 100) (<= main_n 39)))} assume a[i] != 23;i := i + 4; {20773#(and (or (< 39 main_n) (and (<= 104 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 104) (<= main_n 39)))} is VALID [2019-01-31 14:36:33,912 INFO L273 TraceCheckUtils]: 52: Hoare triple {20773#(and (or (< 39 main_n) (and (<= 104 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 104) (<= main_n 39)))} assume i <= n * 4; {20773#(and (or (< 39 main_n) (and (<= 104 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 104) (<= main_n 39)))} is VALID [2019-01-31 14:36:33,913 INFO L273 TraceCheckUtils]: 53: Hoare triple {20773#(and (or (< 39 main_n) (and (<= 104 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 104) (<= main_n 39)))} assume a[i] != 23;i := i + 4; {20774#(and (or (<= main_n 39) (<= main_i 108)) (or (< 39 main_n) (and (<= 108 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:36:33,914 INFO L273 TraceCheckUtils]: 54: Hoare triple {20774#(and (or (<= main_n 39) (<= main_i 108)) (or (< 39 main_n) (and (<= 108 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {20774#(and (or (<= main_n 39) (<= main_i 108)) (or (< 39 main_n) (and (<= 108 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:36:33,915 INFO L273 TraceCheckUtils]: 55: Hoare triple {20774#(and (or (<= main_n 39) (<= main_i 108)) (or (< 39 main_n) (and (<= 108 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {20775#(and (or (< 39 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 112 main_i))) (or (<= main_n 39) (<= main_i 112)))} is VALID [2019-01-31 14:36:33,916 INFO L273 TraceCheckUtils]: 56: Hoare triple {20775#(and (or (< 39 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 112 main_i))) (or (<= main_n 39) (<= main_i 112)))} assume i <= n * 4; {20775#(and (or (< 39 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 112 main_i))) (or (<= main_n 39) (<= main_i 112)))} is VALID [2019-01-31 14:36:33,917 INFO L273 TraceCheckUtils]: 57: Hoare triple {20775#(and (or (< 39 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 112 main_i))) (or (<= main_n 39) (<= main_i 112)))} assume a[i] != 23;i := i + 4; {20776#(and (or (< 39 main_n) (and (<= 116 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 39) (<= main_i 116)))} is VALID [2019-01-31 14:36:33,918 INFO L273 TraceCheckUtils]: 58: Hoare triple {20776#(and (or (< 39 main_n) (and (<= 116 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 39) (<= main_i 116)))} assume i <= n * 4; {20776#(and (or (< 39 main_n) (and (<= 116 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 39) (<= main_i 116)))} is VALID [2019-01-31 14:36:33,919 INFO L273 TraceCheckUtils]: 59: Hoare triple {20776#(and (or (< 39 main_n) (and (<= 116 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 39) (<= main_i 116)))} assume a[i] != 23;i := i + 4; {20777#(and (or (< 39 main_n) (and (<= 120 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 39) (<= main_i 120)))} is VALID [2019-01-31 14:36:33,922 INFO L273 TraceCheckUtils]: 60: Hoare triple {20777#(and (or (< 39 main_n) (and (<= 120 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 39) (<= main_i 120)))} assume i <= n * 4; {20777#(and (or (< 39 main_n) (and (<= 120 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 39) (<= main_i 120)))} is VALID [2019-01-31 14:36:33,923 INFO L273 TraceCheckUtils]: 61: Hoare triple {20777#(and (or (< 39 main_n) (and (<= 120 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 39) (<= main_i 120)))} assume a[i] != 23;i := i + 4; {20778#(and (or (<= main_n 39) (<= main_i 124)) (or (< 39 main_n) (and (<= 124 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:36:33,924 INFO L273 TraceCheckUtils]: 62: Hoare triple {20778#(and (or (<= main_n 39) (<= main_i 124)) (or (< 39 main_n) (and (<= 124 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {20778#(and (or (<= main_n 39) (<= main_i 124)) (or (< 39 main_n) (and (<= 124 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:36:33,924 INFO L273 TraceCheckUtils]: 63: Hoare triple {20778#(and (or (<= main_n 39) (<= main_i 124)) (or (< 39 main_n) (and (<= 124 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {20779#(and (or (<= main_n 39) (<= main_i 128)) (or (< 39 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 128 main_i))))} is VALID [2019-01-31 14:36:33,926 INFO L273 TraceCheckUtils]: 64: Hoare triple {20779#(and (or (<= main_n 39) (<= main_i 128)) (or (< 39 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 128 main_i))))} assume i <= n * 4; {20779#(and (or (<= main_n 39) (<= main_i 128)) (or (< 39 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 128 main_i))))} is VALID [2019-01-31 14:36:33,926 INFO L273 TraceCheckUtils]: 65: Hoare triple {20779#(and (or (<= main_n 39) (<= main_i 128)) (or (< 39 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 128 main_i))))} assume a[i] != 23;i := i + 4; {20780#(and (or (<= main_i 132) (<= main_n 39)) (or (< 39 main_n) (and (<= 132 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:36:33,928 INFO L273 TraceCheckUtils]: 66: Hoare triple {20780#(and (or (<= main_i 132) (<= main_n 39)) (or (< 39 main_n) (and (<= 132 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {20780#(and (or (<= main_i 132) (<= main_n 39)) (or (< 39 main_n) (and (<= 132 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:36:33,929 INFO L273 TraceCheckUtils]: 67: Hoare triple {20780#(and (or (<= main_i 132) (<= main_n 39)) (or (< 39 main_n) (and (<= 132 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {20781#(and (or (<= main_i 136) (<= main_n 39)) (or (< 39 main_n) (and (<= 136 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:36:33,930 INFO L273 TraceCheckUtils]: 68: Hoare triple {20781#(and (or (<= main_i 136) (<= main_n 39)) (or (< 39 main_n) (and (<= 136 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {20781#(and (or (<= main_i 136) (<= main_n 39)) (or (< 39 main_n) (and (<= 136 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:36:33,931 INFO L273 TraceCheckUtils]: 69: Hoare triple {20781#(and (or (<= main_i 136) (<= main_n 39)) (or (< 39 main_n) (and (<= 136 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {20782#(and (or (< 39 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 140 main_i))) (or (<= main_n 39) (<= main_i 140)))} is VALID [2019-01-31 14:36:33,932 INFO L273 TraceCheckUtils]: 70: Hoare triple {20782#(and (or (< 39 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 140 main_i))) (or (<= main_n 39) (<= main_i 140)))} assume i <= n * 4; {20782#(and (or (< 39 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 140 main_i))) (or (<= main_n 39) (<= main_i 140)))} is VALID [2019-01-31 14:36:33,933 INFO L273 TraceCheckUtils]: 71: Hoare triple {20782#(and (or (< 39 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 140 main_i))) (or (<= main_n 39) (<= main_i 140)))} assume a[i] != 23;i := i + 4; {20783#(and (or (<= main_n 39) (<= main_i 144)) (or (< 39 main_n) (and (<= 144 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:36:33,934 INFO L273 TraceCheckUtils]: 72: Hoare triple {20783#(and (or (<= main_n 39) (<= main_i 144)) (or (< 39 main_n) (and (<= 144 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {20783#(and (or (<= main_n 39) (<= main_i 144)) (or (< 39 main_n) (and (<= 144 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:36:33,935 INFO L273 TraceCheckUtils]: 73: Hoare triple {20783#(and (or (<= main_n 39) (<= main_i 144)) (or (< 39 main_n) (and (<= 144 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {20784#(and (or (<= main_n 39) (<= main_i 148)) (or (< 39 main_n) (and (<= 148 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:36:33,936 INFO L273 TraceCheckUtils]: 74: Hoare triple {20784#(and (or (<= main_n 39) (<= main_i 148)) (or (< 39 main_n) (and (<= 148 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {20784#(and (or (<= main_n 39) (<= main_i 148)) (or (< 39 main_n) (and (<= 148 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:36:33,937 INFO L273 TraceCheckUtils]: 75: Hoare triple {20784#(and (or (<= main_n 39) (<= main_i 148)) (or (< 39 main_n) (and (<= 148 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {20785#(and (or (< 39 main_n) (and (<= 152 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 39) (<= main_i 152)))} is VALID [2019-01-31 14:36:33,938 INFO L273 TraceCheckUtils]: 76: Hoare triple {20785#(and (or (< 39 main_n) (and (<= 152 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 39) (<= main_i 152)))} assume i <= n * 4; {20785#(and (or (< 39 main_n) (and (<= 152 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 39) (<= main_i 152)))} is VALID [2019-01-31 14:36:33,939 INFO L273 TraceCheckUtils]: 77: Hoare triple {20785#(and (or (< 39 main_n) (and (<= 152 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 39) (<= main_i 152)))} assume a[i] != 23;i := i + 4; {20786#(and (or (< 39 main_n) (and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (<= (* 4 main_n) main_i))) (or (<= main_i 156) (<= main_n 39)))} is VALID [2019-01-31 14:36:33,944 INFO L273 TraceCheckUtils]: 78: Hoare triple {20786#(and (or (< 39 main_n) (and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (<= (* 4 main_n) main_i))) (or (<= main_i 156) (<= main_n 39)))} assume i <= n * 4; {20787#(and (or (< 39 main_n) (and (<= (* 4 main_n) main_i) (<= main_i (* 4 main_n)) (= 23 (select main_a main_i)))) (<= main_i 156))} is VALID [2019-01-31 14:36:33,944 INFO L273 TraceCheckUtils]: 79: Hoare triple {20787#(and (or (< 39 main_n) (and (<= (* 4 main_n) main_i) (<= main_i (* 4 main_n)) (= 23 (select main_a main_i)))) (<= main_i 156))} assume a[i] != 23;i := i + 4; {20788#(and (<= 40 main_n) (<= main_i 160))} is VALID [2019-01-31 14:36:33,945 INFO L273 TraceCheckUtils]: 80: Hoare triple {20788#(and (<= 40 main_n) (<= main_i 160))} assume !(i <= n * 4); {20746#false} is VALID [2019-01-31 14:36:33,975 INFO L134 CoverageAnalysis]: Checked inductivity of 1560 backedges. 0 proven. 1560 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-31 14:36:33,975 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-31 14:36:33,975 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-01-31 14:36:33,975 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-01-31 14:36:33,975 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-01-31 14:36:33,975 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-31 14:36:33,975 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 14:36:33,983 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2019-01-31 14:36:33,983 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder TERMS_WITH_SMALL_CONSTANTS_FIRST (IT: FPandBP) [2019-01-31 14:36:34,005 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-01-31 14:36:34,006 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-01-31 14:36:34,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-31 14:36:34,020 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-31 14:36:34,028 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 14:36:34,030 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-01-31 14:36:34,037 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-31 14:36:34,038 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2019-01-31 14:36:34,039 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-01-31 14:36:34,039 WARN L398 uantifierElimination]: Input elimination task: ∃ [v_main_a_43]. (and (= main_i 0) (= (store v_main_a_43 (* 4 main_n) 23) main_a)) [2019-01-31 14:36:34,039 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2019-01-31 14:36:36,645 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2019-01-31 14:36:36,647 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-01-31 14:36:36,653 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-31 14:36:36,653 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2019-01-31 14:36:36,655 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-01-31 14:36:36,656 WARN L398 uantifierElimination]: Input elimination task: ∃ [main_a]. (let ((.cse0 (* 4 main_n))) (and (not (= (select main_a 156) 23)) (<= 156 .cse0) (= 23 (select main_a .cse0)) (<= main_i 160))) [2019-01-31 14:36:36,656 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (let ((.cse0 (* 4 main_n))) (and (<= 156 .cse0) (not (= 156 .cse0)) (<= main_i 160))) [2019-01-31 14:36:36,706 INFO L273 TraceCheckUtils]: 0: Hoare triple {20745#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {20792#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:36:36,706 INFO L273 TraceCheckUtils]: 1: Hoare triple {20792#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {20796#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2019-01-31 14:36:36,707 INFO L273 TraceCheckUtils]: 2: Hoare triple {20796#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume i <= n * 4; {20796#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2019-01-31 14:36:36,708 INFO L273 TraceCheckUtils]: 3: Hoare triple {20796#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume a[i] != 23;i := i + 4; {20803#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:36:36,708 INFO L273 TraceCheckUtils]: 4: Hoare triple {20803#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {20803#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:36:36,709 INFO L273 TraceCheckUtils]: 5: Hoare triple {20803#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {20810#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2019-01-31 14:36:36,710 INFO L273 TraceCheckUtils]: 6: Hoare triple {20810#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume i <= n * 4; {20810#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2019-01-31 14:36:36,710 INFO L273 TraceCheckUtils]: 7: Hoare triple {20810#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume a[i] != 23;i := i + 4; {20817#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:36:36,711 INFO L273 TraceCheckUtils]: 8: Hoare triple {20817#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {20817#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:36:36,712 INFO L273 TraceCheckUtils]: 9: Hoare triple {20817#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {20824#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:36:36,713 INFO L273 TraceCheckUtils]: 10: Hoare triple {20824#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {20824#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:36:36,713 INFO L273 TraceCheckUtils]: 11: Hoare triple {20824#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {20831#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:36:36,714 INFO L273 TraceCheckUtils]: 12: Hoare triple {20831#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {20831#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:36:36,715 INFO L273 TraceCheckUtils]: 13: Hoare triple {20831#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {20838#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:36:36,715 INFO L273 TraceCheckUtils]: 14: Hoare triple {20838#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {20838#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:36:36,716 INFO L273 TraceCheckUtils]: 15: Hoare triple {20838#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {20845#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:36:36,717 INFO L273 TraceCheckUtils]: 16: Hoare triple {20845#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {20845#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:36:36,717 INFO L273 TraceCheckUtils]: 17: Hoare triple {20845#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {20852#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:36:36,718 INFO L273 TraceCheckUtils]: 18: Hoare triple {20852#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {20852#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:36:36,719 INFO L273 TraceCheckUtils]: 19: Hoare triple {20852#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {20859#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:36:36,719 INFO L273 TraceCheckUtils]: 20: Hoare triple {20859#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {20859#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:36:36,720 INFO L273 TraceCheckUtils]: 21: Hoare triple {20859#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {20866#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:36:36,721 INFO L273 TraceCheckUtils]: 22: Hoare triple {20866#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {20866#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:36:36,721 INFO L273 TraceCheckUtils]: 23: Hoare triple {20866#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {20873#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:36:36,722 INFO L273 TraceCheckUtils]: 24: Hoare triple {20873#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {20873#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:36:36,723 INFO L273 TraceCheckUtils]: 25: Hoare triple {20873#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {20880#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:36:36,724 INFO L273 TraceCheckUtils]: 26: Hoare triple {20880#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {20880#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:36:36,724 INFO L273 TraceCheckUtils]: 27: Hoare triple {20880#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {20887#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:36:36,725 INFO L273 TraceCheckUtils]: 28: Hoare triple {20887#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {20887#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:36:36,726 INFO L273 TraceCheckUtils]: 29: Hoare triple {20887#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {20894#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:36:36,726 INFO L273 TraceCheckUtils]: 30: Hoare triple {20894#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {20894#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:36:36,727 INFO L273 TraceCheckUtils]: 31: Hoare triple {20894#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {20901#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:36:36,728 INFO L273 TraceCheckUtils]: 32: Hoare triple {20901#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {20901#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:36:36,728 INFO L273 TraceCheckUtils]: 33: Hoare triple {20901#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {20908#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:36:36,729 INFO L273 TraceCheckUtils]: 34: Hoare triple {20908#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {20908#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:36:36,730 INFO L273 TraceCheckUtils]: 35: Hoare triple {20908#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {20915#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:36:36,730 INFO L273 TraceCheckUtils]: 36: Hoare triple {20915#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {20915#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:36:36,731 INFO L273 TraceCheckUtils]: 37: Hoare triple {20915#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {20922#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:36:36,732 INFO L273 TraceCheckUtils]: 38: Hoare triple {20922#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {20922#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:36:36,732 INFO L273 TraceCheckUtils]: 39: Hoare triple {20922#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {20929#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} is VALID [2019-01-31 14:36:36,733 INFO L273 TraceCheckUtils]: 40: Hoare triple {20929#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} assume i <= n * 4; {20929#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} is VALID [2019-01-31 14:36:36,734 INFO L273 TraceCheckUtils]: 41: Hoare triple {20929#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} assume a[i] != 23;i := i + 4; {20936#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:36:36,736 INFO L273 TraceCheckUtils]: 42: Hoare triple {20936#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {20936#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:36:36,737 INFO L273 TraceCheckUtils]: 43: Hoare triple {20936#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {20943#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:36:36,737 INFO L273 TraceCheckUtils]: 44: Hoare triple {20943#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {20943#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:36:36,738 INFO L273 TraceCheckUtils]: 45: Hoare triple {20943#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {20950#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:36:36,738 INFO L273 TraceCheckUtils]: 46: Hoare triple {20950#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {20950#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:36:36,738 INFO L273 TraceCheckUtils]: 47: Hoare triple {20950#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {20957#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:36:36,739 INFO L273 TraceCheckUtils]: 48: Hoare triple {20957#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {20957#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:36:36,740 INFO L273 TraceCheckUtils]: 49: Hoare triple {20957#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {20964#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:36:36,740 INFO L273 TraceCheckUtils]: 50: Hoare triple {20964#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {20964#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:36:36,741 INFO L273 TraceCheckUtils]: 51: Hoare triple {20964#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {20971#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:36:36,742 INFO L273 TraceCheckUtils]: 52: Hoare triple {20971#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {20971#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:36:36,742 INFO L273 TraceCheckUtils]: 53: Hoare triple {20971#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {20978#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:36:36,743 INFO L273 TraceCheckUtils]: 54: Hoare triple {20978#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {20978#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:36:36,744 INFO L273 TraceCheckUtils]: 55: Hoare triple {20978#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {20985#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:36:36,744 INFO L273 TraceCheckUtils]: 56: Hoare triple {20985#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {20985#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:36:36,745 INFO L273 TraceCheckUtils]: 57: Hoare triple {20985#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {20992#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:36:36,746 INFO L273 TraceCheckUtils]: 58: Hoare triple {20992#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {20992#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:36:36,746 INFO L273 TraceCheckUtils]: 59: Hoare triple {20992#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {20999#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:36:36,747 INFO L273 TraceCheckUtils]: 60: Hoare triple {20999#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {20999#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:36:36,748 INFO L273 TraceCheckUtils]: 61: Hoare triple {20999#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {21006#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:36:36,748 INFO L273 TraceCheckUtils]: 62: Hoare triple {21006#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {21006#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:36:36,749 INFO L273 TraceCheckUtils]: 63: Hoare triple {21006#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {21013#(and (= main_i 128) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:36:36,750 INFO L273 TraceCheckUtils]: 64: Hoare triple {21013#(and (= main_i 128) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {21013#(and (= main_i 128) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:36:36,751 INFO L273 TraceCheckUtils]: 65: Hoare triple {21013#(and (= main_i 128) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {21020#(and (= main_i 132) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:36:36,751 INFO L273 TraceCheckUtils]: 66: Hoare triple {21020#(and (= main_i 132) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {21020#(and (= main_i 132) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:36:36,752 INFO L273 TraceCheckUtils]: 67: Hoare triple {21020#(and (= main_i 132) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {21027#(and (= main_i 136) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:36:36,753 INFO L273 TraceCheckUtils]: 68: Hoare triple {21027#(and (= main_i 136) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {21027#(and (= main_i 136) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:36:36,753 INFO L273 TraceCheckUtils]: 69: Hoare triple {21027#(and (= main_i 136) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {21034#(and (= 23 (select main_a (* 4 main_n))) (= main_i 140))} is VALID [2019-01-31 14:36:36,754 INFO L273 TraceCheckUtils]: 70: Hoare triple {21034#(and (= 23 (select main_a (* 4 main_n))) (= main_i 140))} assume i <= n * 4; {21034#(and (= 23 (select main_a (* 4 main_n))) (= main_i 140))} is VALID [2019-01-31 14:36:36,755 INFO L273 TraceCheckUtils]: 71: Hoare triple {21034#(and (= 23 (select main_a (* 4 main_n))) (= main_i 140))} assume a[i] != 23;i := i + 4; {21041#(and (= main_i 144) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:36:36,756 INFO L273 TraceCheckUtils]: 72: Hoare triple {21041#(and (= main_i 144) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {21041#(and (= main_i 144) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:36:36,756 INFO L273 TraceCheckUtils]: 73: Hoare triple {21041#(and (= main_i 144) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {21048#(and (= main_i 148) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:36:36,757 INFO L273 TraceCheckUtils]: 74: Hoare triple {21048#(and (= main_i 148) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {21048#(and (= main_i 148) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:36:36,758 INFO L273 TraceCheckUtils]: 75: Hoare triple {21048#(and (= main_i 148) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {21055#(and (= main_i 152) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:36:36,758 INFO L273 TraceCheckUtils]: 76: Hoare triple {21055#(and (= main_i 152) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {21055#(and (= main_i 152) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:36:36,759 INFO L273 TraceCheckUtils]: 77: Hoare triple {21055#(and (= main_i 152) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {21062#(and (= main_i 156) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:36:36,760 INFO L273 TraceCheckUtils]: 78: Hoare triple {21062#(and (= main_i 156) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {21066#(and (= main_i 156) (<= main_i (* 4 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:36:36,761 INFO L273 TraceCheckUtils]: 79: Hoare triple {21066#(and (= main_i 156) (<= main_i (* 4 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {20788#(and (<= 40 main_n) (<= main_i 160))} is VALID [2019-01-31 14:36:36,761 INFO L273 TraceCheckUtils]: 80: Hoare triple {20788#(and (<= 40 main_n) (<= main_i 160))} assume !(i <= n * 4); {20746#false} is VALID [2019-01-31 14:36:36,777 INFO L134 CoverageAnalysis]: Checked inductivity of 1560 backedges. 0 proven. 1560 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-31 14:36:36,777 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2019-01-31 14:36:41,602 INFO L273 TraceCheckUtils]: 80: Hoare triple {21073#(<= main_i (* 4 main_n))} assume !(i <= n * 4); {20746#false} is VALID [2019-01-31 14:36:41,603 INFO L273 TraceCheckUtils]: 79: Hoare triple {21077#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} assume a[i] != 23;i := i + 4; {21073#(<= main_i (* 4 main_n))} is VALID [2019-01-31 14:36:41,604 INFO L273 TraceCheckUtils]: 78: Hoare triple {21081#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} assume i <= n * 4; {21077#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} is VALID [2019-01-31 14:36:41,605 INFO L273 TraceCheckUtils]: 77: Hoare triple {21085#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume a[i] != 23;i := i + 4; {21081#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} is VALID [2019-01-31 14:36:41,606 INFO L273 TraceCheckUtils]: 76: Hoare triple {21085#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume i <= n * 4; {21085#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2019-01-31 14:36:41,607 INFO L273 TraceCheckUtils]: 75: Hoare triple {21092#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume a[i] != 23;i := i + 4; {21085#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2019-01-31 14:36:41,607 INFO L273 TraceCheckUtils]: 74: Hoare triple {21092#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume i <= n * 4; {21092#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2019-01-31 14:36:41,608 INFO L273 TraceCheckUtils]: 73: Hoare triple {21099#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume a[i] != 23;i := i + 4; {21092#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2019-01-31 14:36:41,609 INFO L273 TraceCheckUtils]: 72: Hoare triple {21099#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume i <= n * 4; {21099#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2019-01-31 14:36:41,610 INFO L273 TraceCheckUtils]: 71: Hoare triple {21106#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume a[i] != 23;i := i + 4; {21099#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2019-01-31 14:36:41,610 INFO L273 TraceCheckUtils]: 70: Hoare triple {21106#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume i <= n * 4; {21106#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2019-01-31 14:36:41,611 INFO L273 TraceCheckUtils]: 69: Hoare triple {21113#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {21106#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2019-01-31 14:36:41,612 INFO L273 TraceCheckUtils]: 68: Hoare triple {21113#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume i <= n * 4; {21113#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2019-01-31 14:36:41,613 INFO L273 TraceCheckUtils]: 67: Hoare triple {21120#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume a[i] != 23;i := i + 4; {21113#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2019-01-31 14:36:41,613 INFO L273 TraceCheckUtils]: 66: Hoare triple {21120#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume i <= n * 4; {21120#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2019-01-31 14:36:41,615 INFO L273 TraceCheckUtils]: 65: Hoare triple {21127#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {21120#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2019-01-31 14:36:41,615 INFO L273 TraceCheckUtils]: 64: Hoare triple {21127#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume i <= n * 4; {21127#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2019-01-31 14:36:41,616 INFO L273 TraceCheckUtils]: 63: Hoare triple {21134#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {21127#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2019-01-31 14:36:41,617 INFO L273 TraceCheckUtils]: 62: Hoare triple {21134#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume i <= n * 4; {21134#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2019-01-31 14:36:41,618 INFO L273 TraceCheckUtils]: 61: Hoare triple {21141#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {21134#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2019-01-31 14:36:41,618 INFO L273 TraceCheckUtils]: 60: Hoare triple {21141#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume i <= n * 4; {21141#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2019-01-31 14:36:41,619 INFO L273 TraceCheckUtils]: 59: Hoare triple {21148#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} assume a[i] != 23;i := i + 4; {21141#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2019-01-31 14:36:41,620 INFO L273 TraceCheckUtils]: 58: Hoare triple {21148#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} assume i <= n * 4; {21148#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} is VALID [2019-01-31 14:36:41,621 INFO L273 TraceCheckUtils]: 57: Hoare triple {21155#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {21148#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} is VALID [2019-01-31 14:36:41,621 INFO L273 TraceCheckUtils]: 56: Hoare triple {21155#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} assume i <= n * 4; {21155#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} is VALID [2019-01-31 14:36:41,622 INFO L273 TraceCheckUtils]: 55: Hoare triple {21162#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {21155#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} is VALID [2019-01-31 14:36:41,623 INFO L273 TraceCheckUtils]: 54: Hoare triple {21162#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} assume i <= n * 4; {21162#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} is VALID [2019-01-31 14:36:41,624 INFO L273 TraceCheckUtils]: 53: Hoare triple {21169#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} assume a[i] != 23;i := i + 4; {21162#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} is VALID [2019-01-31 14:36:41,624 INFO L273 TraceCheckUtils]: 52: Hoare triple {21169#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} assume i <= n * 4; {21169#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} is VALID [2019-01-31 14:36:41,625 INFO L273 TraceCheckUtils]: 51: Hoare triple {21176#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {21169#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} is VALID [2019-01-31 14:36:41,626 INFO L273 TraceCheckUtils]: 50: Hoare triple {21176#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} assume i <= n * 4; {21176#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} is VALID [2019-01-31 14:36:41,627 INFO L273 TraceCheckUtils]: 49: Hoare triple {21183#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} assume a[i] != 23;i := i + 4; {21176#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} is VALID [2019-01-31 14:36:41,628 INFO L273 TraceCheckUtils]: 48: Hoare triple {21183#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} assume i <= n * 4; {21183#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} is VALID [2019-01-31 14:36:41,629 INFO L273 TraceCheckUtils]: 47: Hoare triple {21190#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} assume a[i] != 23;i := i + 4; {21183#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} is VALID [2019-01-31 14:36:41,629 INFO L273 TraceCheckUtils]: 46: Hoare triple {21190#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} assume i <= n * 4; {21190#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} is VALID [2019-01-31 14:36:41,630 INFO L273 TraceCheckUtils]: 45: Hoare triple {21197#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} assume a[i] != 23;i := i + 4; {21190#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} is VALID [2019-01-31 14:36:41,631 INFO L273 TraceCheckUtils]: 44: Hoare triple {21197#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} assume i <= n * 4; {21197#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} is VALID [2019-01-31 14:36:41,632 INFO L273 TraceCheckUtils]: 43: Hoare triple {21204#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} assume a[i] != 23;i := i + 4; {21197#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} is VALID [2019-01-31 14:36:41,632 INFO L273 TraceCheckUtils]: 42: Hoare triple {21204#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} assume i <= n * 4; {21204#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} is VALID [2019-01-31 14:36:41,633 INFO L273 TraceCheckUtils]: 41: Hoare triple {21211#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} assume a[i] != 23;i := i + 4; {21204#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} is VALID [2019-01-31 14:36:41,634 INFO L273 TraceCheckUtils]: 40: Hoare triple {21211#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} assume i <= n * 4; {21211#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} is VALID [2019-01-31 14:36:41,635 INFO L273 TraceCheckUtils]: 39: Hoare triple {21218#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} assume a[i] != 23;i := i + 4; {21211#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} is VALID [2019-01-31 14:36:41,635 INFO L273 TraceCheckUtils]: 38: Hoare triple {21218#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} assume i <= n * 4; {21218#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} is VALID [2019-01-31 14:36:41,637 INFO L273 TraceCheckUtils]: 37: Hoare triple {21225#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {21218#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} is VALID [2019-01-31 14:36:41,637 INFO L273 TraceCheckUtils]: 36: Hoare triple {21225#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} assume i <= n * 4; {21225#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} is VALID [2019-01-31 14:36:41,638 INFO L273 TraceCheckUtils]: 35: Hoare triple {21232#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {21225#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} is VALID [2019-01-31 14:36:41,639 INFO L273 TraceCheckUtils]: 34: Hoare triple {21232#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} assume i <= n * 4; {21232#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} is VALID [2019-01-31 14:36:41,640 INFO L273 TraceCheckUtils]: 33: Hoare triple {21239#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {21232#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} is VALID [2019-01-31 14:36:41,640 INFO L273 TraceCheckUtils]: 32: Hoare triple {21239#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} assume i <= n * 4; {21239#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} is VALID [2019-01-31 14:36:41,641 INFO L273 TraceCheckUtils]: 31: Hoare triple {21246#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} assume a[i] != 23;i := i + 4; {21239#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} is VALID [2019-01-31 14:36:41,642 INFO L273 TraceCheckUtils]: 30: Hoare triple {21246#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} assume i <= n * 4; {21246#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} is VALID [2019-01-31 14:36:41,643 INFO L273 TraceCheckUtils]: 29: Hoare triple {21253#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {21246#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} is VALID [2019-01-31 14:36:41,643 INFO L273 TraceCheckUtils]: 28: Hoare triple {21253#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} assume i <= n * 4; {21253#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} is VALID [2019-01-31 14:36:41,644 INFO L273 TraceCheckUtils]: 27: Hoare triple {21260#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} assume a[i] != 23;i := i + 4; {21253#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} is VALID [2019-01-31 14:36:41,645 INFO L273 TraceCheckUtils]: 26: Hoare triple {21260#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} assume i <= n * 4; {21260#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} is VALID [2019-01-31 14:36:41,646 INFO L273 TraceCheckUtils]: 25: Hoare triple {21267#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} assume a[i] != 23;i := i + 4; {21260#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} is VALID [2019-01-31 14:36:41,646 INFO L273 TraceCheckUtils]: 24: Hoare triple {21267#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} assume i <= n * 4; {21267#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} is VALID [2019-01-31 14:36:41,648 INFO L273 TraceCheckUtils]: 23: Hoare triple {21274#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} assume a[i] != 23;i := i + 4; {21267#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} is VALID [2019-01-31 14:36:41,648 INFO L273 TraceCheckUtils]: 22: Hoare triple {21274#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} assume i <= n * 4; {21274#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} is VALID [2019-01-31 14:36:41,649 INFO L273 TraceCheckUtils]: 21: Hoare triple {21281#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {21274#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} is VALID [2019-01-31 14:36:41,650 INFO L273 TraceCheckUtils]: 20: Hoare triple {21281#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} assume i <= n * 4; {21281#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} is VALID [2019-01-31 14:36:41,651 INFO L273 TraceCheckUtils]: 19: Hoare triple {21288#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {21281#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} is VALID [2019-01-31 14:36:41,651 INFO L273 TraceCheckUtils]: 18: Hoare triple {21288#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} assume i <= n * 4; {21288#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} is VALID [2019-01-31 14:36:41,652 INFO L273 TraceCheckUtils]: 17: Hoare triple {21295#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} assume a[i] != 23;i := i + 4; {21288#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} is VALID [2019-01-31 14:36:41,653 INFO L273 TraceCheckUtils]: 16: Hoare triple {21295#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} assume i <= n * 4; {21295#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} is VALID [2019-01-31 14:36:41,654 INFO L273 TraceCheckUtils]: 15: Hoare triple {21302#(or (< (* 4 main_n) (+ main_i 128)) (= (select main_a (+ main_i 128)) 23) (< (+ main_i 131) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {21295#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} is VALID [2019-01-31 14:36:41,654 INFO L273 TraceCheckUtils]: 14: Hoare triple {21302#(or (< (* 4 main_n) (+ main_i 128)) (= (select main_a (+ main_i 128)) 23) (< (+ main_i 131) (* 4 main_n)))} assume i <= n * 4; {21302#(or (< (* 4 main_n) (+ main_i 128)) (= (select main_a (+ main_i 128)) 23) (< (+ main_i 131) (* 4 main_n)))} is VALID [2019-01-31 14:36:41,655 INFO L273 TraceCheckUtils]: 13: Hoare triple {21309#(or (< (* 4 main_n) (+ main_i 132)) (< (+ main_i 135) (* 4 main_n)) (= (select main_a (+ main_i 132)) 23))} assume a[i] != 23;i := i + 4; {21302#(or (< (* 4 main_n) (+ main_i 128)) (= (select main_a (+ main_i 128)) 23) (< (+ main_i 131) (* 4 main_n)))} is VALID [2019-01-31 14:36:41,656 INFO L273 TraceCheckUtils]: 12: Hoare triple {21309#(or (< (* 4 main_n) (+ main_i 132)) (< (+ main_i 135) (* 4 main_n)) (= (select main_a (+ main_i 132)) 23))} assume i <= n * 4; {21309#(or (< (* 4 main_n) (+ main_i 132)) (< (+ main_i 135) (* 4 main_n)) (= (select main_a (+ main_i 132)) 23))} is VALID [2019-01-31 14:36:41,657 INFO L273 TraceCheckUtils]: 11: Hoare triple {21316#(or (< (+ main_i 139) (* 4 main_n)) (= (select main_a (+ main_i 136)) 23) (< (* 4 main_n) (+ main_i 136)))} assume a[i] != 23;i := i + 4; {21309#(or (< (* 4 main_n) (+ main_i 132)) (< (+ main_i 135) (* 4 main_n)) (= (select main_a (+ main_i 132)) 23))} is VALID [2019-01-31 14:36:41,657 INFO L273 TraceCheckUtils]: 10: Hoare triple {21316#(or (< (+ main_i 139) (* 4 main_n)) (= (select main_a (+ main_i 136)) 23) (< (* 4 main_n) (+ main_i 136)))} assume i <= n * 4; {21316#(or (< (+ main_i 139) (* 4 main_n)) (= (select main_a (+ main_i 136)) 23) (< (* 4 main_n) (+ main_i 136)))} is VALID [2019-01-31 14:36:41,659 INFO L273 TraceCheckUtils]: 9: Hoare triple {21323#(or (< (* 4 main_n) (+ main_i 140)) (< (+ main_i 143) (* 4 main_n)) (= (select main_a (+ main_i 140)) 23))} assume a[i] != 23;i := i + 4; {21316#(or (< (+ main_i 139) (* 4 main_n)) (= (select main_a (+ main_i 136)) 23) (< (* 4 main_n) (+ main_i 136)))} is VALID [2019-01-31 14:36:41,659 INFO L273 TraceCheckUtils]: 8: Hoare triple {21323#(or (< (* 4 main_n) (+ main_i 140)) (< (+ main_i 143) (* 4 main_n)) (= (select main_a (+ main_i 140)) 23))} assume i <= n * 4; {21323#(or (< (* 4 main_n) (+ main_i 140)) (< (+ main_i 143) (* 4 main_n)) (= (select main_a (+ main_i 140)) 23))} is VALID [2019-01-31 14:36:41,660 INFO L273 TraceCheckUtils]: 7: Hoare triple {21330#(or (= (select main_a (+ main_i 144)) 23) (< (+ main_i 147) (* 4 main_n)) (< (* 4 main_n) (+ main_i 144)))} assume a[i] != 23;i := i + 4; {21323#(or (< (* 4 main_n) (+ main_i 140)) (< (+ main_i 143) (* 4 main_n)) (= (select main_a (+ main_i 140)) 23))} is VALID [2019-01-31 14:36:41,661 INFO L273 TraceCheckUtils]: 6: Hoare triple {21330#(or (= (select main_a (+ main_i 144)) 23) (< (+ main_i 147) (* 4 main_n)) (< (* 4 main_n) (+ main_i 144)))} assume i <= n * 4; {21330#(or (= (select main_a (+ main_i 144)) 23) (< (+ main_i 147) (* 4 main_n)) (< (* 4 main_n) (+ main_i 144)))} is VALID [2019-01-31 14:36:41,662 INFO L273 TraceCheckUtils]: 5: Hoare triple {21337#(or (< (+ main_i 151) (* 4 main_n)) (< (* 4 main_n) (+ main_i 148)) (= (select main_a (+ main_i 148)) 23))} assume a[i] != 23;i := i + 4; {21330#(or (= (select main_a (+ main_i 144)) 23) (< (+ main_i 147) (* 4 main_n)) (< (* 4 main_n) (+ main_i 144)))} is VALID [2019-01-31 14:36:41,662 INFO L273 TraceCheckUtils]: 4: Hoare triple {21337#(or (< (+ main_i 151) (* 4 main_n)) (< (* 4 main_n) (+ main_i 148)) (= (select main_a (+ main_i 148)) 23))} assume i <= n * 4; {21337#(or (< (+ main_i 151) (* 4 main_n)) (< (* 4 main_n) (+ main_i 148)) (= (select main_a (+ main_i 148)) 23))} is VALID [2019-01-31 14:36:41,663 INFO L273 TraceCheckUtils]: 3: Hoare triple {21344#(or (= 23 (select main_a (+ main_i 152))) (< (+ main_i 155) (* 4 main_n)) (< (* 4 main_n) (+ main_i 152)))} assume a[i] != 23;i := i + 4; {21337#(or (< (+ main_i 151) (* 4 main_n)) (< (* 4 main_n) (+ main_i 148)) (= (select main_a (+ main_i 148)) 23))} is VALID [2019-01-31 14:36:41,664 INFO L273 TraceCheckUtils]: 2: Hoare triple {21344#(or (= 23 (select main_a (+ main_i 152))) (< (+ main_i 155) (* 4 main_n)) (< (* 4 main_n) (+ main_i 152)))} assume i <= n * 4; {21344#(or (= 23 (select main_a (+ main_i 152))) (< (+ main_i 155) (* 4 main_n)) (< (* 4 main_n) (+ main_i 152)))} is VALID [2019-01-31 14:36:41,665 INFO L273 TraceCheckUtils]: 1: Hoare triple {21351#(or (< (+ main_i 159) (* 4 main_n)) (= (select main_a (+ main_i 156)) 23) (< (* 4 main_n) (+ main_i 156)))} assume a[i] != 23;i := i + 4; {21344#(or (= 23 (select main_a (+ main_i 152))) (< (+ main_i 155) (* 4 main_n)) (< (* 4 main_n) (+ main_i 152)))} is VALID [2019-01-31 14:36:41,666 INFO L273 TraceCheckUtils]: 0: Hoare triple {20745#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {21351#(or (< (+ main_i 159) (* 4 main_n)) (= (select main_a (+ main_i 156)) 23) (< (* 4 main_n) (+ main_i 156)))} is VALID [2019-01-31 14:36:41,690 INFO L134 CoverageAnalysis]: Checked inductivity of 1560 backedges. 0 proven. 1560 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-31 14:36:41,708 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-01-31 14:36:41,708 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [42, 42, 42] total 125 [2019-01-31 14:36:41,708 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-01-31 14:36:41,709 INFO L78 Accepts]: Start accepts. Automaton has 85 states. Word has length 81 [2019-01-31 14:36:41,709 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-01-31 14:36:41,709 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 85 states. [2019-01-31 14:36:41,904 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 161 edges. 161 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-01-31 14:36:41,904 INFO L459 AbstractCegarLoop]: Interpolant automaton has 85 states [2019-01-31 14:36:41,904 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 85 interpolants. [2019-01-31 14:36:41,905 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1982, Invalid=14020, Unknown=0, NotChecked=0, Total=16002 [2019-01-31 14:36:41,905 INFO L87 Difference]: Start difference. First operand 82 states and 82 transitions. Second operand 85 states. [2019-01-31 14:36:51,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 14:36:51,396 INFO L93 Difference]: Finished difference Result 86 states and 86 transitions. [2019-01-31 14:36:51,396 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2019-01-31 14:36:51,396 INFO L78 Accepts]: Start accepts. Automaton has 85 states. Word has length 81 [2019-01-31 14:36:51,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-31 14:36:51,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2019-01-31 14:36:51,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 86 transitions. [2019-01-31 14:36:51,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2019-01-31 14:36:51,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 86 transitions. [2019-01-31 14:36:51,399 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 44 states and 86 transitions. [2019-01-31 14:36:51,496 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 14:36:51,498 INFO L225 Difference]: With dead ends: 86 [2019-01-31 14:36:51,498 INFO L226 Difference]: Without dead ends: 85 [2019-01-31 14:36:51,499 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 202 GetRequests, 76 SyntacticMatches, 1 SemanticMatches, 125 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3608 ImplicationChecksByTransitivity, 9.1s TimeCoverageRelationStatistics Valid=1982, Invalid=14020, Unknown=0, NotChecked=0, Total=16002 [2019-01-31 14:36:51,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2019-01-31 14:36:51,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 84. [2019-01-31 14:36:51,575 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-01-31 14:36:51,575 INFO L82 GeneralOperation]: Start isEquivalent. First operand 85 states. Second operand 84 states. [2019-01-31 14:36:51,576 INFO L74 IsIncluded]: Start isIncluded. First operand 85 states. Second operand 84 states. [2019-01-31 14:36:51,576 INFO L87 Difference]: Start difference. First operand 85 states. Second operand 84 states. [2019-01-31 14:36:51,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 14:36:51,577 INFO L93 Difference]: Finished difference Result 85 states and 85 transitions. [2019-01-31 14:36:51,577 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 85 transitions. [2019-01-31 14:36:51,577 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-31 14:36:51,577 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-01-31 14:36:51,577 INFO L74 IsIncluded]: Start isIncluded. First operand 84 states. Second operand 85 states. [2019-01-31 14:36:51,578 INFO L87 Difference]: Start difference. First operand 84 states. Second operand 85 states. [2019-01-31 14:36:51,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 14:36:51,579 INFO L93 Difference]: Finished difference Result 85 states and 85 transitions. [2019-01-31 14:36:51,579 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 85 transitions. [2019-01-31 14:36:51,579 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-31 14:36:51,579 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-01-31 14:36:51,579 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-01-31 14:36:51,579 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-01-31 14:36:51,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 84 states. [2019-01-31 14:36:51,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 84 transitions. [2019-01-31 14:36:51,581 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 84 transitions. Word has length 81 [2019-01-31 14:36:51,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-31 14:36:51,581 INFO L480 AbstractCegarLoop]: Abstraction has 84 states and 84 transitions. [2019-01-31 14:36:51,581 INFO L481 AbstractCegarLoop]: Interpolant automaton has 85 states. [2019-01-31 14:36:51,581 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 84 transitions. [2019-01-31 14:36:51,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2019-01-31 14:36:51,581 INFO L394 BasicCegarLoop]: Found error trace [2019-01-31 14:36:51,582 INFO L402 BasicCegarLoop]: trace histogram [41, 40, 1, 1] [2019-01-31 14:36:51,582 INFO L423 AbstractCegarLoop]: === Iteration 41 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-01-31 14:36:51,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-31 14:36:51,582 INFO L82 PathProgramCache]: Analyzing trace with hash 1588427056, now seen corresponding path program 40 times [2019-01-31 14:36:51,582 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-01-31 14:36:51,583 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-31 14:36:51,583 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-01-31 14:36:51,583 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-31 14:36:51,583 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-01-31 14:36:51,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-31 14:36:53,860 INFO L273 TraceCheckUtils]: 0: Hoare triple {21777#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {21779#(and (or (<= main_i 0) (<= main_n 40)) (or (and (<= 0 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)))} is VALID [2019-01-31 14:36:53,862 INFO L273 TraceCheckUtils]: 1: Hoare triple {21779#(and (or (<= main_i 0) (<= main_n 40)) (or (and (<= 0 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)))} assume a[i] != 23;i := i + 4; {21780#(and (or (<= main_n 40) (<= main_i 4)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i)) (< 40 main_n)))} is VALID [2019-01-31 14:36:53,862 INFO L273 TraceCheckUtils]: 2: Hoare triple {21780#(and (or (<= main_n 40) (<= main_i 4)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i)) (< 40 main_n)))} assume i <= n * 4; {21780#(and (or (<= main_n 40) (<= main_i 4)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i)) (< 40 main_n)))} is VALID [2019-01-31 14:36:53,863 INFO L273 TraceCheckUtils]: 3: Hoare triple {21780#(and (or (<= main_n 40) (<= main_i 4)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i)) (< 40 main_n)))} assume a[i] != 23;i := i + 4; {21781#(and (or (<= main_i 8) (<= main_n 40)) (or (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)))} is VALID [2019-01-31 14:36:53,864 INFO L273 TraceCheckUtils]: 4: Hoare triple {21781#(and (or (<= main_i 8) (<= main_n 40)) (or (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)))} assume i <= n * 4; {21781#(and (or (<= main_i 8) (<= main_n 40)) (or (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)))} is VALID [2019-01-31 14:36:53,865 INFO L273 TraceCheckUtils]: 5: Hoare triple {21781#(and (or (<= main_i 8) (<= main_n 40)) (or (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)))} assume a[i] != 23;i := i + 4; {21782#(and (or (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)) (or (<= main_n 40) (<= main_i 12)))} is VALID [2019-01-31 14:36:53,866 INFO L273 TraceCheckUtils]: 6: Hoare triple {21782#(and (or (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)) (or (<= main_n 40) (<= main_i 12)))} assume i <= n * 4; {21782#(and (or (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)) (or (<= main_n 40) (<= main_i 12)))} is VALID [2019-01-31 14:36:53,867 INFO L273 TraceCheckUtils]: 7: Hoare triple {21782#(and (or (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)) (or (<= main_n 40) (<= main_i 12)))} assume a[i] != 23;i := i + 4; {21783#(and (or (<= main_n 40) (<= main_i 16)) (or (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)))} is VALID [2019-01-31 14:36:53,868 INFO L273 TraceCheckUtils]: 8: Hoare triple {21783#(and (or (<= main_n 40) (<= main_i 16)) (or (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)))} assume i <= n * 4; {21783#(and (or (<= main_n 40) (<= main_i 16)) (or (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)))} is VALID [2019-01-31 14:36:53,869 INFO L273 TraceCheckUtils]: 9: Hoare triple {21783#(and (or (<= main_n 40) (<= main_i 16)) (or (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)))} assume a[i] != 23;i := i + 4; {21784#(and (or (<= main_i 20) (<= main_n 40)) (or (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)))} is VALID [2019-01-31 14:36:53,870 INFO L273 TraceCheckUtils]: 10: Hoare triple {21784#(and (or (<= main_i 20) (<= main_n 40)) (or (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)))} assume i <= n * 4; {21784#(and (or (<= main_i 20) (<= main_n 40)) (or (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)))} is VALID [2019-01-31 14:36:53,871 INFO L273 TraceCheckUtils]: 11: Hoare triple {21784#(and (or (<= main_i 20) (<= main_n 40)) (or (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)))} assume a[i] != 23;i := i + 4; {21785#(and (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)) (or (<= main_i 24) (<= main_n 40)))} is VALID [2019-01-31 14:36:53,871 INFO L273 TraceCheckUtils]: 12: Hoare triple {21785#(and (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)) (or (<= main_i 24) (<= main_n 40)))} assume i <= n * 4; {21785#(and (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)) (or (<= main_i 24) (<= main_n 40)))} is VALID [2019-01-31 14:36:53,873 INFO L273 TraceCheckUtils]: 13: Hoare triple {21785#(and (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)) (or (<= main_i 24) (<= main_n 40)))} assume a[i] != 23;i := i + 4; {21786#(and (or (<= main_n 40) (<= main_i 28)) (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)))} is VALID [2019-01-31 14:36:53,873 INFO L273 TraceCheckUtils]: 14: Hoare triple {21786#(and (or (<= main_n 40) (<= main_i 28)) (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)))} assume i <= n * 4; {21786#(and (or (<= main_n 40) (<= main_i 28)) (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)))} is VALID [2019-01-31 14:36:53,874 INFO L273 TraceCheckUtils]: 15: Hoare triple {21786#(and (or (<= main_n 40) (<= main_i 28)) (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)))} assume a[i] != 23;i := i + 4; {21787#(and (or (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)) (or (<= main_i 32) (<= main_n 40)))} is VALID [2019-01-31 14:36:53,875 INFO L273 TraceCheckUtils]: 16: Hoare triple {21787#(and (or (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)) (or (<= main_i 32) (<= main_n 40)))} assume i <= n * 4; {21787#(and (or (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)) (or (<= main_i 32) (<= main_n 40)))} is VALID [2019-01-31 14:36:53,876 INFO L273 TraceCheckUtils]: 17: Hoare triple {21787#(and (or (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)) (or (<= main_i 32) (<= main_n 40)))} assume a[i] != 23;i := i + 4; {21788#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i)) (< 40 main_n)) (or (<= main_i 36) (<= main_n 40)))} is VALID [2019-01-31 14:36:53,877 INFO L273 TraceCheckUtils]: 18: Hoare triple {21788#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i)) (< 40 main_n)) (or (<= main_i 36) (<= main_n 40)))} assume i <= n * 4; {21788#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i)) (< 40 main_n)) (or (<= main_i 36) (<= main_n 40)))} is VALID [2019-01-31 14:36:53,878 INFO L273 TraceCheckUtils]: 19: Hoare triple {21788#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i)) (< 40 main_n)) (or (<= main_i 36) (<= main_n 40)))} assume a[i] != 23;i := i + 4; {21789#(and (or (<= main_i 40) (<= main_n 40)) (or (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)))} is VALID [2019-01-31 14:36:53,879 INFO L273 TraceCheckUtils]: 20: Hoare triple {21789#(and (or (<= main_i 40) (<= main_n 40)) (or (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)))} assume i <= n * 4; {21789#(and (or (<= main_i 40) (<= main_n 40)) (or (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)))} is VALID [2019-01-31 14:36:53,880 INFO L273 TraceCheckUtils]: 21: Hoare triple {21789#(and (or (<= main_i 40) (<= main_n 40)) (or (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)))} assume a[i] != 23;i := i + 4; {21790#(and (or (and (<= 44 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)) (or (<= main_n 40) (<= main_i 44)))} is VALID [2019-01-31 14:36:53,881 INFO L273 TraceCheckUtils]: 22: Hoare triple {21790#(and (or (and (<= 44 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)) (or (<= main_n 40) (<= main_i 44)))} assume i <= n * 4; {21790#(and (or (and (<= 44 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)) (or (<= main_n 40) (<= main_i 44)))} is VALID [2019-01-31 14:36:53,882 INFO L273 TraceCheckUtils]: 23: Hoare triple {21790#(and (or (and (<= 44 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)) (or (<= main_n 40) (<= main_i 44)))} assume a[i] != 23;i := i + 4; {21791#(and (or (and (<= 48 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)) (or (<= main_n 40) (<= main_i 48)))} is VALID [2019-01-31 14:36:53,882 INFO L273 TraceCheckUtils]: 24: Hoare triple {21791#(and (or (and (<= 48 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)) (or (<= main_n 40) (<= main_i 48)))} assume i <= n * 4; {21791#(and (or (and (<= 48 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)) (or (<= main_n 40) (<= main_i 48)))} is VALID [2019-01-31 14:36:53,884 INFO L273 TraceCheckUtils]: 25: Hoare triple {21791#(and (or (and (<= 48 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)) (or (<= main_n 40) (<= main_i 48)))} assume a[i] != 23;i := i + 4; {21792#(and (or (<= main_i 52) (<= main_n 40)) (or (and (<= 52 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)))} is VALID [2019-01-31 14:36:53,884 INFO L273 TraceCheckUtils]: 26: Hoare triple {21792#(and (or (<= main_i 52) (<= main_n 40)) (or (and (<= 52 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)))} assume i <= n * 4; {21792#(and (or (<= main_i 52) (<= main_n 40)) (or (and (<= 52 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)))} is VALID [2019-01-31 14:36:53,885 INFO L273 TraceCheckUtils]: 27: Hoare triple {21792#(and (or (<= main_i 52) (<= main_n 40)) (or (and (<= 52 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)))} assume a[i] != 23;i := i + 4; {21793#(and (or (<= main_n 40) (<= main_i 56)) (or (and (<= 56 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)))} is VALID [2019-01-31 14:36:53,886 INFO L273 TraceCheckUtils]: 28: Hoare triple {21793#(and (or (<= main_n 40) (<= main_i 56)) (or (and (<= 56 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)))} assume i <= n * 4; {21793#(and (or (<= main_n 40) (<= main_i 56)) (or (and (<= 56 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)))} is VALID [2019-01-31 14:36:53,887 INFO L273 TraceCheckUtils]: 29: Hoare triple {21793#(and (or (<= main_n 40) (<= main_i 56)) (or (and (<= 56 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)))} assume a[i] != 23;i := i + 4; {21794#(and (or (and (<= 60 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)) (or (<= main_i 60) (<= main_n 40)))} is VALID [2019-01-31 14:36:53,888 INFO L273 TraceCheckUtils]: 30: Hoare triple {21794#(and (or (and (<= 60 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)) (or (<= main_i 60) (<= main_n 40)))} assume i <= n * 4; {21794#(and (or (and (<= 60 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)) (or (<= main_i 60) (<= main_n 40)))} is VALID [2019-01-31 14:36:53,889 INFO L273 TraceCheckUtils]: 31: Hoare triple {21794#(and (or (and (<= 60 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)) (or (<= main_i 60) (<= main_n 40)))} assume a[i] != 23;i := i + 4; {21795#(and (or (<= main_i 64) (<= main_n 40)) (or (and (<= 64 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)))} is VALID [2019-01-31 14:36:53,890 INFO L273 TraceCheckUtils]: 32: Hoare triple {21795#(and (or (<= main_i 64) (<= main_n 40)) (or (and (<= 64 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)))} assume i <= n * 4; {21795#(and (or (<= main_i 64) (<= main_n 40)) (or (and (<= 64 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)))} is VALID [2019-01-31 14:36:53,891 INFO L273 TraceCheckUtils]: 33: Hoare triple {21795#(and (or (<= main_i 64) (<= main_n 40)) (or (and (<= 64 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)))} assume a[i] != 23;i := i + 4; {21796#(and (or (<= main_n 40) (<= main_i 68)) (or (and (<= 68 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)))} is VALID [2019-01-31 14:36:53,891 INFO L273 TraceCheckUtils]: 34: Hoare triple {21796#(and (or (<= main_n 40) (<= main_i 68)) (or (and (<= 68 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)))} assume i <= n * 4; {21796#(and (or (<= main_n 40) (<= main_i 68)) (or (and (<= 68 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)))} is VALID [2019-01-31 14:36:53,892 INFO L273 TraceCheckUtils]: 35: Hoare triple {21796#(and (or (<= main_n 40) (<= main_i 68)) (or (and (<= 68 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)))} assume a[i] != 23;i := i + 4; {21797#(and (or (and (<= 72 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)) (or (<= main_n 40) (<= main_i 72)))} is VALID [2019-01-31 14:36:53,893 INFO L273 TraceCheckUtils]: 36: Hoare triple {21797#(and (or (and (<= 72 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)) (or (<= main_n 40) (<= main_i 72)))} assume i <= n * 4; {21797#(and (or (and (<= 72 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)) (or (<= main_n 40) (<= main_i 72)))} is VALID [2019-01-31 14:36:53,894 INFO L273 TraceCheckUtils]: 37: Hoare triple {21797#(and (or (and (<= 72 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)) (or (<= main_n 40) (<= main_i 72)))} assume a[i] != 23;i := i + 4; {21798#(and (or (and (<= 76 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)) (or (<= main_i 76) (<= main_n 40)))} is VALID [2019-01-31 14:36:53,895 INFO L273 TraceCheckUtils]: 38: Hoare triple {21798#(and (or (and (<= 76 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)) (or (<= main_i 76) (<= main_n 40)))} assume i <= n * 4; {21798#(and (or (and (<= 76 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)) (or (<= main_i 76) (<= main_n 40)))} is VALID [2019-01-31 14:36:53,896 INFO L273 TraceCheckUtils]: 39: Hoare triple {21798#(and (or (and (<= 76 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)) (or (<= main_i 76) (<= main_n 40)))} assume a[i] != 23;i := i + 4; {21799#(and (or (<= main_n 40) (<= main_i 80)) (or (and (<= 80 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)))} is VALID [2019-01-31 14:36:53,897 INFO L273 TraceCheckUtils]: 40: Hoare triple {21799#(and (or (<= main_n 40) (<= main_i 80)) (or (and (<= 80 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)))} assume i <= n * 4; {21799#(and (or (<= main_n 40) (<= main_i 80)) (or (and (<= 80 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)))} is VALID [2019-01-31 14:36:53,905 INFO L273 TraceCheckUtils]: 41: Hoare triple {21799#(and (or (<= main_n 40) (<= main_i 80)) (or (and (<= 80 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)))} assume a[i] != 23;i := i + 4; {21800#(and (or (<= main_i 84) (<= main_n 40)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 84 main_i)) (< 40 main_n)))} is VALID [2019-01-31 14:36:53,906 INFO L273 TraceCheckUtils]: 42: Hoare triple {21800#(and (or (<= main_i 84) (<= main_n 40)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 84 main_i)) (< 40 main_n)))} assume i <= n * 4; {21800#(and (or (<= main_i 84) (<= main_n 40)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 84 main_i)) (< 40 main_n)))} is VALID [2019-01-31 14:36:53,906 INFO L273 TraceCheckUtils]: 43: Hoare triple {21800#(and (or (<= main_i 84) (<= main_n 40)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 84 main_i)) (< 40 main_n)))} assume a[i] != 23;i := i + 4; {21801#(and (or (<= main_i 88) (<= main_n 40)) (or (and (<= 88 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)))} is VALID [2019-01-31 14:36:53,907 INFO L273 TraceCheckUtils]: 44: Hoare triple {21801#(and (or (<= main_i 88) (<= main_n 40)) (or (and (<= 88 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)))} assume i <= n * 4; {21801#(and (or (<= main_i 88) (<= main_n 40)) (or (and (<= 88 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)))} is VALID [2019-01-31 14:36:53,908 INFO L273 TraceCheckUtils]: 45: Hoare triple {21801#(and (or (<= main_i 88) (<= main_n 40)) (or (and (<= 88 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)))} assume a[i] != 23;i := i + 4; {21802#(and (or (and (<= 92 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)) (or (<= main_i 92) (<= main_n 40)))} is VALID [2019-01-31 14:36:53,913 INFO L273 TraceCheckUtils]: 46: Hoare triple {21802#(and (or (and (<= 92 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)) (or (<= main_i 92) (<= main_n 40)))} assume i <= n * 4; {21802#(and (or (and (<= 92 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)) (or (<= main_i 92) (<= main_n 40)))} is VALID [2019-01-31 14:36:53,914 INFO L273 TraceCheckUtils]: 47: Hoare triple {21802#(and (or (and (<= 92 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)) (or (<= main_i 92) (<= main_n 40)))} assume a[i] != 23;i := i + 4; {21803#(and (or (and (<= 96 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)) (or (<= main_i 96) (<= main_n 40)))} is VALID [2019-01-31 14:36:53,914 INFO L273 TraceCheckUtils]: 48: Hoare triple {21803#(and (or (and (<= 96 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)) (or (<= main_i 96) (<= main_n 40)))} assume i <= n * 4; {21803#(and (or (and (<= 96 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)) (or (<= main_i 96) (<= main_n 40)))} is VALID [2019-01-31 14:36:53,915 INFO L273 TraceCheckUtils]: 49: Hoare triple {21803#(and (or (and (<= 96 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)) (or (<= main_i 96) (<= main_n 40)))} assume a[i] != 23;i := i + 4; {21804#(and (or (<= main_i 100) (<= main_n 40)) (or (and (<= 100 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)))} is VALID [2019-01-31 14:36:53,915 INFO L273 TraceCheckUtils]: 50: Hoare triple {21804#(and (or (<= main_i 100) (<= main_n 40)) (or (and (<= 100 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)))} assume i <= n * 4; {21804#(and (or (<= main_i 100) (<= main_n 40)) (or (and (<= 100 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)))} is VALID [2019-01-31 14:36:53,916 INFO L273 TraceCheckUtils]: 51: Hoare triple {21804#(and (or (<= main_i 100) (<= main_n 40)) (or (and (<= 100 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)))} assume a[i] != 23;i := i + 4; {21805#(and (or (<= main_i 104) (<= main_n 40)) (or (and (<= 104 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)))} is VALID [2019-01-31 14:36:53,916 INFO L273 TraceCheckUtils]: 52: Hoare triple {21805#(and (or (<= main_i 104) (<= main_n 40)) (or (and (<= 104 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)))} assume i <= n * 4; {21805#(and (or (<= main_i 104) (<= main_n 40)) (or (and (<= 104 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)))} is VALID [2019-01-31 14:36:53,917 INFO L273 TraceCheckUtils]: 53: Hoare triple {21805#(and (or (<= main_i 104) (<= main_n 40)) (or (and (<= 104 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)))} assume a[i] != 23;i := i + 4; {21806#(and (or (and (<= 108 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)) (or (<= main_n 40) (<= main_i 108)))} is VALID [2019-01-31 14:36:53,918 INFO L273 TraceCheckUtils]: 54: Hoare triple {21806#(and (or (and (<= 108 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)) (or (<= main_n 40) (<= main_i 108)))} assume i <= n * 4; {21806#(and (or (and (<= 108 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)) (or (<= main_n 40) (<= main_i 108)))} is VALID [2019-01-31 14:36:53,919 INFO L273 TraceCheckUtils]: 55: Hoare triple {21806#(and (or (and (<= 108 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)) (or (<= main_n 40) (<= main_i 108)))} assume a[i] != 23;i := i + 4; {21807#(and (or (<= main_n 40) (<= main_i 112)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 112 main_i)) (< 40 main_n)))} is VALID [2019-01-31 14:36:53,920 INFO L273 TraceCheckUtils]: 56: Hoare triple {21807#(and (or (<= main_n 40) (<= main_i 112)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 112 main_i)) (< 40 main_n)))} assume i <= n * 4; {21807#(and (or (<= main_n 40) (<= main_i 112)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 112 main_i)) (< 40 main_n)))} is VALID [2019-01-31 14:36:53,921 INFO L273 TraceCheckUtils]: 57: Hoare triple {21807#(and (or (<= main_n 40) (<= main_i 112)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 112 main_i)) (< 40 main_n)))} assume a[i] != 23;i := i + 4; {21808#(and (or (and (<= 116 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)) (or (<= main_i 116) (<= main_n 40)))} is VALID [2019-01-31 14:36:53,921 INFO L273 TraceCheckUtils]: 58: Hoare triple {21808#(and (or (and (<= 116 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)) (or (<= main_i 116) (<= main_n 40)))} assume i <= n * 4; {21808#(and (or (and (<= 116 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)) (or (<= main_i 116) (<= main_n 40)))} is VALID [2019-01-31 14:36:53,922 INFO L273 TraceCheckUtils]: 59: Hoare triple {21808#(and (or (and (<= 116 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)) (or (<= main_i 116) (<= main_n 40)))} assume a[i] != 23;i := i + 4; {21809#(and (or (and (<= 120 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)) (or (<= main_i 120) (<= main_n 40)))} is VALID [2019-01-31 14:36:53,923 INFO L273 TraceCheckUtils]: 60: Hoare triple {21809#(and (or (and (<= 120 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)) (or (<= main_i 120) (<= main_n 40)))} assume i <= n * 4; {21809#(and (or (and (<= 120 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)) (or (<= main_i 120) (<= main_n 40)))} is VALID [2019-01-31 14:36:53,924 INFO L273 TraceCheckUtils]: 61: Hoare triple {21809#(and (or (and (<= 120 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)) (or (<= main_i 120) (<= main_n 40)))} assume a[i] != 23;i := i + 4; {21810#(and (or (and (<= 124 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)) (or (<= main_n 40) (<= main_i 124)))} is VALID [2019-01-31 14:36:53,925 INFO L273 TraceCheckUtils]: 62: Hoare triple {21810#(and (or (and (<= 124 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)) (or (<= main_n 40) (<= main_i 124)))} assume i <= n * 4; {21810#(and (or (and (<= 124 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)) (or (<= main_n 40) (<= main_i 124)))} is VALID [2019-01-31 14:36:53,926 INFO L273 TraceCheckUtils]: 63: Hoare triple {21810#(and (or (and (<= 124 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)) (or (<= main_n 40) (<= main_i 124)))} assume a[i] != 23;i := i + 4; {21811#(and (or (<= main_n 40) (<= main_i 128)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 128 main_i)) (< 40 main_n)))} is VALID [2019-01-31 14:36:53,927 INFO L273 TraceCheckUtils]: 64: Hoare triple {21811#(and (or (<= main_n 40) (<= main_i 128)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 128 main_i)) (< 40 main_n)))} assume i <= n * 4; {21811#(and (or (<= main_n 40) (<= main_i 128)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 128 main_i)) (< 40 main_n)))} is VALID [2019-01-31 14:36:53,928 INFO L273 TraceCheckUtils]: 65: Hoare triple {21811#(and (or (<= main_n 40) (<= main_i 128)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 128 main_i)) (< 40 main_n)))} assume a[i] != 23;i := i + 4; {21812#(and (or (and (<= 132 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)) (or (<= main_i 132) (<= main_n 40)))} is VALID [2019-01-31 14:36:53,929 INFO L273 TraceCheckUtils]: 66: Hoare triple {21812#(and (or (and (<= 132 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)) (or (<= main_i 132) (<= main_n 40)))} assume i <= n * 4; {21812#(and (or (and (<= 132 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)) (or (<= main_i 132) (<= main_n 40)))} is VALID [2019-01-31 14:36:53,930 INFO L273 TraceCheckUtils]: 67: Hoare triple {21812#(and (or (and (<= 132 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)) (or (<= main_i 132) (<= main_n 40)))} assume a[i] != 23;i := i + 4; {21813#(and (or (<= main_i 136) (<= main_n 40)) (or (and (<= 136 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)))} is VALID [2019-01-31 14:36:53,930 INFO L273 TraceCheckUtils]: 68: Hoare triple {21813#(and (or (<= main_i 136) (<= main_n 40)) (or (and (<= 136 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)))} assume i <= n * 4; {21813#(and (or (<= main_i 136) (<= main_n 40)) (or (and (<= 136 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)))} is VALID [2019-01-31 14:36:53,931 INFO L273 TraceCheckUtils]: 69: Hoare triple {21813#(and (or (<= main_i 136) (<= main_n 40)) (or (and (<= 136 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)))} assume a[i] != 23;i := i + 4; {21814#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 140 main_i)) (< 40 main_n)) (or (<= main_n 40) (<= main_i 140)))} is VALID [2019-01-31 14:36:53,932 INFO L273 TraceCheckUtils]: 70: Hoare triple {21814#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 140 main_i)) (< 40 main_n)) (or (<= main_n 40) (<= main_i 140)))} assume i <= n * 4; {21814#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 140 main_i)) (< 40 main_n)) (or (<= main_n 40) (<= main_i 140)))} is VALID [2019-01-31 14:36:53,933 INFO L273 TraceCheckUtils]: 71: Hoare triple {21814#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 140 main_i)) (< 40 main_n)) (or (<= main_n 40) (<= main_i 140)))} assume a[i] != 23;i := i + 4; {21815#(and (or (<= main_n 40) (<= main_i 144)) (or (and (<= 144 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)))} is VALID [2019-01-31 14:36:53,934 INFO L273 TraceCheckUtils]: 72: Hoare triple {21815#(and (or (<= main_n 40) (<= main_i 144)) (or (and (<= 144 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)))} assume i <= n * 4; {21815#(and (or (<= main_n 40) (<= main_i 144)) (or (and (<= 144 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)))} is VALID [2019-01-31 14:36:53,935 INFO L273 TraceCheckUtils]: 73: Hoare triple {21815#(and (or (<= main_n 40) (<= main_i 144)) (or (and (<= 144 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)))} assume a[i] != 23;i := i + 4; {21816#(and (or (< 40 main_n) (and (<= 148 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 40) (<= main_i 148)))} is VALID [2019-01-31 14:36:53,936 INFO L273 TraceCheckUtils]: 74: Hoare triple {21816#(and (or (< 40 main_n) (and (<= 148 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 40) (<= main_i 148)))} assume i <= n * 4; {21816#(and (or (< 40 main_n) (and (<= 148 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 40) (<= main_i 148)))} is VALID [2019-01-31 14:36:53,937 INFO L273 TraceCheckUtils]: 75: Hoare triple {21816#(and (or (< 40 main_n) (and (<= 148 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 40) (<= main_i 148)))} assume a[i] != 23;i := i + 4; {21817#(and (or (and (<= 152 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)) (or (<= main_n 40) (<= main_i 152)))} is VALID [2019-01-31 14:36:53,938 INFO L273 TraceCheckUtils]: 76: Hoare triple {21817#(and (or (and (<= 152 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)) (or (<= main_n 40) (<= main_i 152)))} assume i <= n * 4; {21817#(and (or (and (<= 152 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)) (or (<= main_n 40) (<= main_i 152)))} is VALID [2019-01-31 14:36:53,939 INFO L273 TraceCheckUtils]: 77: Hoare triple {21817#(and (or (and (<= 152 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)) (or (<= main_n 40) (<= main_i 152)))} assume a[i] != 23;i := i + 4; {21818#(and (or (<= main_i 156) (<= main_n 40)) (or (and (<= 156 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)))} is VALID [2019-01-31 14:36:53,939 INFO L273 TraceCheckUtils]: 78: Hoare triple {21818#(and (or (<= main_i 156) (<= main_n 40)) (or (and (<= 156 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)))} assume i <= n * 4; {21818#(and (or (<= main_i 156) (<= main_n 40)) (or (and (<= 156 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)))} is VALID [2019-01-31 14:36:53,941 INFO L273 TraceCheckUtils]: 79: Hoare triple {21818#(and (or (<= main_i 156) (<= main_n 40)) (or (and (<= 156 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)))} assume a[i] != 23;i := i + 4; {21819#(and (or (and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (<= (* 4 main_n) main_i)) (< 40 main_n)) (or (<= main_n 40) (<= main_i 160)))} is VALID [2019-01-31 14:36:53,942 INFO L273 TraceCheckUtils]: 80: Hoare triple {21819#(and (or (and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (<= (* 4 main_n) main_i)) (< 40 main_n)) (or (<= main_n 40) (<= main_i 160)))} assume i <= n * 4; {21820#(and (or (and (<= (* 4 main_n) main_i) (<= main_i (* 4 main_n)) (= 23 (select main_a main_i))) (< 40 main_n)) (<= main_i 160))} is VALID [2019-01-31 14:36:53,942 INFO L273 TraceCheckUtils]: 81: Hoare triple {21820#(and (or (and (<= (* 4 main_n) main_i) (<= main_i (* 4 main_n)) (= 23 (select main_a main_i))) (< 40 main_n)) (<= main_i 160))} assume a[i] != 23;i := i + 4; {21821#(and (<= main_i 164) (< 40 main_n))} is VALID [2019-01-31 14:36:53,943 INFO L273 TraceCheckUtils]: 82: Hoare triple {21821#(and (<= main_i 164) (< 40 main_n))} assume !(i <= n * 4); {21778#false} is VALID [2019-01-31 14:36:53,975 INFO L134 CoverageAnalysis]: Checked inductivity of 1640 backedges. 0 proven. 1640 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-31 14:36:53,975 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-31 14:36:53,975 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-01-31 14:36:53,975 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-01-31 14:36:53,976 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-01-31 14:36:53,976 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-31 14:36:53,976 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 14:36:53,984 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-31 14:36:53,984 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2019-01-31 14:36:54,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-31 14:36:54,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-31 14:36:54,035 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-31 14:36:54,056 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 14:36:54,061 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-01-31 14:36:54,069 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-31 14:36:54,069 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2019-01-31 14:36:54,071 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-01-31 14:36:54,071 WARN L398 uantifierElimination]: Input elimination task: ∃ [v_main_a_44]. (and (= (store v_main_a_44 (* 4 main_n) 23) main_a) (= main_i 0)) [2019-01-31 14:36:54,071 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2019-01-31 14:36:57,039 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2019-01-31 14:36:57,041 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-01-31 14:36:57,047 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-31 14:36:57,047 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2019-01-31 14:36:57,050 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-01-31 14:36:57,050 WARN L398 uantifierElimination]: Input elimination task: ∃ [main_a]. (let ((.cse0 (* 4 main_n))) (and (<= 160 .cse0) (<= main_i 164) (not (= 23 (select main_a 160))) (= 23 (select main_a .cse0)))) [2019-01-31 14:36:57,050 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (let ((.cse0 (* 4 main_n))) (and (<= 160 .cse0) (<= main_i 164) (not (= 160 .cse0)))) [2019-01-31 14:36:57,101 INFO L273 TraceCheckUtils]: 0: Hoare triple {21777#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {21825#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:36:57,102 INFO L273 TraceCheckUtils]: 1: Hoare triple {21825#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {21829#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2019-01-31 14:36:57,103 INFO L273 TraceCheckUtils]: 2: Hoare triple {21829#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume i <= n * 4; {21829#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2019-01-31 14:36:57,103 INFO L273 TraceCheckUtils]: 3: Hoare triple {21829#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume a[i] != 23;i := i + 4; {21836#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:36:57,104 INFO L273 TraceCheckUtils]: 4: Hoare triple {21836#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {21836#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:36:57,105 INFO L273 TraceCheckUtils]: 5: Hoare triple {21836#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {21843#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2019-01-31 14:36:57,105 INFO L273 TraceCheckUtils]: 6: Hoare triple {21843#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume i <= n * 4; {21843#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2019-01-31 14:36:57,106 INFO L273 TraceCheckUtils]: 7: Hoare triple {21843#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume a[i] != 23;i := i + 4; {21850#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:36:57,107 INFO L273 TraceCheckUtils]: 8: Hoare triple {21850#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {21850#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:36:57,107 INFO L273 TraceCheckUtils]: 9: Hoare triple {21850#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {21857#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:36:57,108 INFO L273 TraceCheckUtils]: 10: Hoare triple {21857#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {21857#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:36:57,109 INFO L273 TraceCheckUtils]: 11: Hoare triple {21857#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {21864#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:36:57,109 INFO L273 TraceCheckUtils]: 12: Hoare triple {21864#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {21864#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:36:57,110 INFO L273 TraceCheckUtils]: 13: Hoare triple {21864#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {21871#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:36:57,111 INFO L273 TraceCheckUtils]: 14: Hoare triple {21871#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {21871#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:36:57,111 INFO L273 TraceCheckUtils]: 15: Hoare triple {21871#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {21878#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:36:57,112 INFO L273 TraceCheckUtils]: 16: Hoare triple {21878#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {21878#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:36:57,113 INFO L273 TraceCheckUtils]: 17: Hoare triple {21878#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {21885#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:36:57,113 INFO L273 TraceCheckUtils]: 18: Hoare triple {21885#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {21885#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:36:57,114 INFO L273 TraceCheckUtils]: 19: Hoare triple {21885#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {21892#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:36:57,115 INFO L273 TraceCheckUtils]: 20: Hoare triple {21892#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {21892#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:36:57,116 INFO L273 TraceCheckUtils]: 21: Hoare triple {21892#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {21899#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:36:57,116 INFO L273 TraceCheckUtils]: 22: Hoare triple {21899#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {21899#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:36:57,117 INFO L273 TraceCheckUtils]: 23: Hoare triple {21899#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {21906#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:36:57,118 INFO L273 TraceCheckUtils]: 24: Hoare triple {21906#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {21906#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:36:57,118 INFO L273 TraceCheckUtils]: 25: Hoare triple {21906#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {21913#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:36:57,119 INFO L273 TraceCheckUtils]: 26: Hoare triple {21913#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {21913#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:36:57,120 INFO L273 TraceCheckUtils]: 27: Hoare triple {21913#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {21920#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:36:57,120 INFO L273 TraceCheckUtils]: 28: Hoare triple {21920#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {21920#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:36:57,121 INFO L273 TraceCheckUtils]: 29: Hoare triple {21920#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {21927#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:36:57,122 INFO L273 TraceCheckUtils]: 30: Hoare triple {21927#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {21927#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:36:57,123 INFO L273 TraceCheckUtils]: 31: Hoare triple {21927#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {21934#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:36:57,123 INFO L273 TraceCheckUtils]: 32: Hoare triple {21934#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {21934#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:36:57,124 INFO L273 TraceCheckUtils]: 33: Hoare triple {21934#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {21941#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:36:57,125 INFO L273 TraceCheckUtils]: 34: Hoare triple {21941#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {21941#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:36:57,125 INFO L273 TraceCheckUtils]: 35: Hoare triple {21941#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {21948#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:36:57,126 INFO L273 TraceCheckUtils]: 36: Hoare triple {21948#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {21948#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:36:57,127 INFO L273 TraceCheckUtils]: 37: Hoare triple {21948#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {21955#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:36:57,127 INFO L273 TraceCheckUtils]: 38: Hoare triple {21955#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {21955#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:36:57,128 INFO L273 TraceCheckUtils]: 39: Hoare triple {21955#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {21962#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} is VALID [2019-01-31 14:36:57,129 INFO L273 TraceCheckUtils]: 40: Hoare triple {21962#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} assume i <= n * 4; {21962#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} is VALID [2019-01-31 14:36:57,129 INFO L273 TraceCheckUtils]: 41: Hoare triple {21962#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} assume a[i] != 23;i := i + 4; {21969#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:36:57,130 INFO L273 TraceCheckUtils]: 42: Hoare triple {21969#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {21969#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:36:57,131 INFO L273 TraceCheckUtils]: 43: Hoare triple {21969#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {21976#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:36:57,131 INFO L273 TraceCheckUtils]: 44: Hoare triple {21976#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {21976#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:36:57,132 INFO L273 TraceCheckUtils]: 45: Hoare triple {21976#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {21983#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:36:57,133 INFO L273 TraceCheckUtils]: 46: Hoare triple {21983#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {21983#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:36:57,134 INFO L273 TraceCheckUtils]: 47: Hoare triple {21983#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {21990#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:36:57,134 INFO L273 TraceCheckUtils]: 48: Hoare triple {21990#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {21990#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:36:57,135 INFO L273 TraceCheckUtils]: 49: Hoare triple {21990#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {21997#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:36:57,136 INFO L273 TraceCheckUtils]: 50: Hoare triple {21997#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {21997#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:36:57,136 INFO L273 TraceCheckUtils]: 51: Hoare triple {21997#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {22004#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:36:57,137 INFO L273 TraceCheckUtils]: 52: Hoare triple {22004#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {22004#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:36:57,138 INFO L273 TraceCheckUtils]: 53: Hoare triple {22004#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {22011#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:36:57,138 INFO L273 TraceCheckUtils]: 54: Hoare triple {22011#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {22011#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:36:57,139 INFO L273 TraceCheckUtils]: 55: Hoare triple {22011#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {22018#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:36:57,140 INFO L273 TraceCheckUtils]: 56: Hoare triple {22018#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {22018#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:36:57,141 INFO L273 TraceCheckUtils]: 57: Hoare triple {22018#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {22025#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:36:57,141 INFO L273 TraceCheckUtils]: 58: Hoare triple {22025#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {22025#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:36:57,142 INFO L273 TraceCheckUtils]: 59: Hoare triple {22025#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {22032#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:36:57,143 INFO L273 TraceCheckUtils]: 60: Hoare triple {22032#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {22032#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:36:57,143 INFO L273 TraceCheckUtils]: 61: Hoare triple {22032#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {22039#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:36:57,144 INFO L273 TraceCheckUtils]: 62: Hoare triple {22039#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {22039#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:36:57,145 INFO L273 TraceCheckUtils]: 63: Hoare triple {22039#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {22046#(and (= main_i 128) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:36:57,145 INFO L273 TraceCheckUtils]: 64: Hoare triple {22046#(and (= main_i 128) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {22046#(and (= main_i 128) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:36:57,146 INFO L273 TraceCheckUtils]: 65: Hoare triple {22046#(and (= main_i 128) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {22053#(and (= main_i 132) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:36:57,147 INFO L273 TraceCheckUtils]: 66: Hoare triple {22053#(and (= main_i 132) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {22053#(and (= main_i 132) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:36:57,148 INFO L273 TraceCheckUtils]: 67: Hoare triple {22053#(and (= main_i 132) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {22060#(and (= main_i 136) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:36:57,148 INFO L273 TraceCheckUtils]: 68: Hoare triple {22060#(and (= main_i 136) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {22060#(and (= main_i 136) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:36:57,149 INFO L273 TraceCheckUtils]: 69: Hoare triple {22060#(and (= main_i 136) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {22067#(and (= 23 (select main_a (* 4 main_n))) (= main_i 140))} is VALID [2019-01-31 14:36:57,150 INFO L273 TraceCheckUtils]: 70: Hoare triple {22067#(and (= 23 (select main_a (* 4 main_n))) (= main_i 140))} assume i <= n * 4; {22067#(and (= 23 (select main_a (* 4 main_n))) (= main_i 140))} is VALID [2019-01-31 14:36:57,151 INFO L273 TraceCheckUtils]: 71: Hoare triple {22067#(and (= 23 (select main_a (* 4 main_n))) (= main_i 140))} assume a[i] != 23;i := i + 4; {22074#(and (= main_i 144) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:36:57,151 INFO L273 TraceCheckUtils]: 72: Hoare triple {22074#(and (= main_i 144) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {22074#(and (= main_i 144) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:36:57,152 INFO L273 TraceCheckUtils]: 73: Hoare triple {22074#(and (= main_i 144) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {22081#(and (= main_i 148) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:36:57,153 INFO L273 TraceCheckUtils]: 74: Hoare triple {22081#(and (= main_i 148) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {22081#(and (= main_i 148) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:36:57,153 INFO L273 TraceCheckUtils]: 75: Hoare triple {22081#(and (= main_i 148) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {22088#(and (= main_i 152) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:36:57,154 INFO L273 TraceCheckUtils]: 76: Hoare triple {22088#(and (= main_i 152) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {22088#(and (= main_i 152) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:36:57,155 INFO L273 TraceCheckUtils]: 77: Hoare triple {22088#(and (= main_i 152) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {22095#(and (= main_i 156) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:36:57,156 INFO L273 TraceCheckUtils]: 78: Hoare triple {22095#(and (= main_i 156) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {22095#(and (= main_i 156) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:36:57,156 INFO L273 TraceCheckUtils]: 79: Hoare triple {22095#(and (= main_i 156) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {22102#(and (= main_i 160) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:36:57,157 INFO L273 TraceCheckUtils]: 80: Hoare triple {22102#(and (= main_i 160) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {22106#(and (= main_i 160) (<= main_i (* 4 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:36:57,158 INFO L273 TraceCheckUtils]: 81: Hoare triple {22106#(and (= main_i 160) (<= main_i (* 4 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {21821#(and (<= main_i 164) (< 40 main_n))} is VALID [2019-01-31 14:36:57,159 INFO L273 TraceCheckUtils]: 82: Hoare triple {21821#(and (<= main_i 164) (< 40 main_n))} assume !(i <= n * 4); {21778#false} is VALID [2019-01-31 14:36:57,176 INFO L134 CoverageAnalysis]: Checked inductivity of 1640 backedges. 0 proven. 1640 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-31 14:36:57,176 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2019-01-31 14:37:02,029 INFO L273 TraceCheckUtils]: 82: Hoare triple {22113#(<= main_i (* 4 main_n))} assume !(i <= n * 4); {21778#false} is VALID [2019-01-31 14:37:02,031 INFO L273 TraceCheckUtils]: 81: Hoare triple {22117#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} assume a[i] != 23;i := i + 4; {22113#(<= main_i (* 4 main_n))} is VALID [2019-01-31 14:37:02,031 INFO L273 TraceCheckUtils]: 80: Hoare triple {22121#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} assume i <= n * 4; {22117#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} is VALID [2019-01-31 14:37:02,032 INFO L273 TraceCheckUtils]: 79: Hoare triple {22125#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume a[i] != 23;i := i + 4; {22121#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} is VALID [2019-01-31 14:37:02,033 INFO L273 TraceCheckUtils]: 78: Hoare triple {22125#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume i <= n * 4; {22125#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2019-01-31 14:37:02,034 INFO L273 TraceCheckUtils]: 77: Hoare triple {22132#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume a[i] != 23;i := i + 4; {22125#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2019-01-31 14:37:02,035 INFO L273 TraceCheckUtils]: 76: Hoare triple {22132#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume i <= n * 4; {22132#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2019-01-31 14:37:02,036 INFO L273 TraceCheckUtils]: 75: Hoare triple {22139#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume a[i] != 23;i := i + 4; {22132#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2019-01-31 14:37:02,036 INFO L273 TraceCheckUtils]: 74: Hoare triple {22139#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume i <= n * 4; {22139#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2019-01-31 14:37:02,038 INFO L273 TraceCheckUtils]: 73: Hoare triple {22146#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume a[i] != 23;i := i + 4; {22139#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2019-01-31 14:37:02,038 INFO L273 TraceCheckUtils]: 72: Hoare triple {22146#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume i <= n * 4; {22146#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2019-01-31 14:37:02,039 INFO L273 TraceCheckUtils]: 71: Hoare triple {22153#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {22146#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2019-01-31 14:37:02,040 INFO L273 TraceCheckUtils]: 70: Hoare triple {22153#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume i <= n * 4; {22153#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2019-01-31 14:37:02,041 INFO L273 TraceCheckUtils]: 69: Hoare triple {22160#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume a[i] != 23;i := i + 4; {22153#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2019-01-31 14:37:02,041 INFO L273 TraceCheckUtils]: 68: Hoare triple {22160#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume i <= n * 4; {22160#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2019-01-31 14:37:02,043 INFO L273 TraceCheckUtils]: 67: Hoare triple {22167#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {22160#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2019-01-31 14:37:02,043 INFO L273 TraceCheckUtils]: 66: Hoare triple {22167#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume i <= n * 4; {22167#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2019-01-31 14:37:02,044 INFO L273 TraceCheckUtils]: 65: Hoare triple {22174#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {22167#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2019-01-31 14:37:02,045 INFO L273 TraceCheckUtils]: 64: Hoare triple {22174#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume i <= n * 4; {22174#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2019-01-31 14:37:02,046 INFO L273 TraceCheckUtils]: 63: Hoare triple {22181#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {22174#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2019-01-31 14:37:02,046 INFO L273 TraceCheckUtils]: 62: Hoare triple {22181#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume i <= n * 4; {22181#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2019-01-31 14:37:02,048 INFO L273 TraceCheckUtils]: 61: Hoare triple {22188#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} assume a[i] != 23;i := i + 4; {22181#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2019-01-31 14:37:02,048 INFO L273 TraceCheckUtils]: 60: Hoare triple {22188#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} assume i <= n * 4; {22188#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} is VALID [2019-01-31 14:37:02,049 INFO L273 TraceCheckUtils]: 59: Hoare triple {22195#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {22188#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} is VALID [2019-01-31 14:37:02,050 INFO L273 TraceCheckUtils]: 58: Hoare triple {22195#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} assume i <= n * 4; {22195#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} is VALID [2019-01-31 14:37:02,051 INFO L273 TraceCheckUtils]: 57: Hoare triple {22202#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {22195#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} is VALID [2019-01-31 14:37:02,052 INFO L273 TraceCheckUtils]: 56: Hoare triple {22202#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} assume i <= n * 4; {22202#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} is VALID [2019-01-31 14:37:02,053 INFO L273 TraceCheckUtils]: 55: Hoare triple {22209#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} assume a[i] != 23;i := i + 4; {22202#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} is VALID [2019-01-31 14:37:02,053 INFO L273 TraceCheckUtils]: 54: Hoare triple {22209#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} assume i <= n * 4; {22209#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} is VALID [2019-01-31 14:37:02,054 INFO L273 TraceCheckUtils]: 53: Hoare triple {22216#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {22209#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} is VALID [2019-01-31 14:37:02,055 INFO L273 TraceCheckUtils]: 52: Hoare triple {22216#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} assume i <= n * 4; {22216#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} is VALID [2019-01-31 14:37:02,056 INFO L273 TraceCheckUtils]: 51: Hoare triple {22223#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} assume a[i] != 23;i := i + 4; {22216#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} is VALID [2019-01-31 14:37:02,057 INFO L273 TraceCheckUtils]: 50: Hoare triple {22223#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} assume i <= n * 4; {22223#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} is VALID [2019-01-31 14:37:02,058 INFO L273 TraceCheckUtils]: 49: Hoare triple {22230#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} assume a[i] != 23;i := i + 4; {22223#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} is VALID [2019-01-31 14:37:02,058 INFO L273 TraceCheckUtils]: 48: Hoare triple {22230#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} assume i <= n * 4; {22230#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} is VALID [2019-01-31 14:37:02,059 INFO L273 TraceCheckUtils]: 47: Hoare triple {22237#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} assume a[i] != 23;i := i + 4; {22230#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} is VALID [2019-01-31 14:37:02,060 INFO L273 TraceCheckUtils]: 46: Hoare triple {22237#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} assume i <= n * 4; {22237#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} is VALID [2019-01-31 14:37:02,061 INFO L273 TraceCheckUtils]: 45: Hoare triple {22244#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} assume a[i] != 23;i := i + 4; {22237#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} is VALID [2019-01-31 14:37:02,062 INFO L273 TraceCheckUtils]: 44: Hoare triple {22244#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} assume i <= n * 4; {22244#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} is VALID [2019-01-31 14:37:02,063 INFO L273 TraceCheckUtils]: 43: Hoare triple {22251#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} assume a[i] != 23;i := i + 4; {22244#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} is VALID [2019-01-31 14:37:02,063 INFO L273 TraceCheckUtils]: 42: Hoare triple {22251#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} assume i <= n * 4; {22251#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} is VALID [2019-01-31 14:37:02,064 INFO L273 TraceCheckUtils]: 41: Hoare triple {22258#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} assume a[i] != 23;i := i + 4; {22251#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} is VALID [2019-01-31 14:37:02,065 INFO L273 TraceCheckUtils]: 40: Hoare triple {22258#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} assume i <= n * 4; {22258#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} is VALID [2019-01-31 14:37:02,066 INFO L273 TraceCheckUtils]: 39: Hoare triple {22265#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {22258#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} is VALID [2019-01-31 14:37:02,067 INFO L273 TraceCheckUtils]: 38: Hoare triple {22265#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} assume i <= n * 4; {22265#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} is VALID [2019-01-31 14:37:02,068 INFO L273 TraceCheckUtils]: 37: Hoare triple {22272#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {22265#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} is VALID [2019-01-31 14:37:02,068 INFO L273 TraceCheckUtils]: 36: Hoare triple {22272#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} assume i <= n * 4; {22272#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} is VALID [2019-01-31 14:37:02,070 INFO L273 TraceCheckUtils]: 35: Hoare triple {22279#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {22272#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} is VALID [2019-01-31 14:37:02,070 INFO L273 TraceCheckUtils]: 34: Hoare triple {22279#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} assume i <= n * 4; {22279#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} is VALID [2019-01-31 14:37:02,071 INFO L273 TraceCheckUtils]: 33: Hoare triple {22286#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} assume a[i] != 23;i := i + 4; {22279#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} is VALID [2019-01-31 14:37:02,072 INFO L273 TraceCheckUtils]: 32: Hoare triple {22286#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} assume i <= n * 4; {22286#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} is VALID [2019-01-31 14:37:02,073 INFO L273 TraceCheckUtils]: 31: Hoare triple {22293#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {22286#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} is VALID [2019-01-31 14:37:02,073 INFO L273 TraceCheckUtils]: 30: Hoare triple {22293#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} assume i <= n * 4; {22293#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} is VALID [2019-01-31 14:37:02,075 INFO L273 TraceCheckUtils]: 29: Hoare triple {22300#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} assume a[i] != 23;i := i + 4; {22293#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} is VALID [2019-01-31 14:37:02,075 INFO L273 TraceCheckUtils]: 28: Hoare triple {22300#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} assume i <= n * 4; {22300#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} is VALID [2019-01-31 14:37:02,076 INFO L273 TraceCheckUtils]: 27: Hoare triple {22307#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} assume a[i] != 23;i := i + 4; {22300#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} is VALID [2019-01-31 14:37:02,077 INFO L273 TraceCheckUtils]: 26: Hoare triple {22307#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} assume i <= n * 4; {22307#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} is VALID [2019-01-31 14:37:02,078 INFO L273 TraceCheckUtils]: 25: Hoare triple {22314#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} assume a[i] != 23;i := i + 4; {22307#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} is VALID [2019-01-31 14:37:02,079 INFO L273 TraceCheckUtils]: 24: Hoare triple {22314#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} assume i <= n * 4; {22314#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} is VALID [2019-01-31 14:37:02,080 INFO L273 TraceCheckUtils]: 23: Hoare triple {22321#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {22314#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} is VALID [2019-01-31 14:37:02,080 INFO L273 TraceCheckUtils]: 22: Hoare triple {22321#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} assume i <= n * 4; {22321#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} is VALID [2019-01-31 14:37:02,081 INFO L273 TraceCheckUtils]: 21: Hoare triple {22328#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {22321#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} is VALID [2019-01-31 14:37:02,082 INFO L273 TraceCheckUtils]: 20: Hoare triple {22328#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} assume i <= n * 4; {22328#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} is VALID [2019-01-31 14:37:02,083 INFO L273 TraceCheckUtils]: 19: Hoare triple {22335#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} assume a[i] != 23;i := i + 4; {22328#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} is VALID [2019-01-31 14:37:02,089 INFO L273 TraceCheckUtils]: 18: Hoare triple {22335#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} assume i <= n * 4; {22335#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} is VALID [2019-01-31 14:37:02,090 INFO L273 TraceCheckUtils]: 17: Hoare triple {22342#(or (< (* 4 main_n) (+ main_i 128)) (= (select main_a (+ main_i 128)) 23) (< (+ main_i 131) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {22335#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} is VALID [2019-01-31 14:37:02,090 INFO L273 TraceCheckUtils]: 16: Hoare triple {22342#(or (< (* 4 main_n) (+ main_i 128)) (= (select main_a (+ main_i 128)) 23) (< (+ main_i 131) (* 4 main_n)))} assume i <= n * 4; {22342#(or (< (* 4 main_n) (+ main_i 128)) (= (select main_a (+ main_i 128)) 23) (< (+ main_i 131) (* 4 main_n)))} is VALID [2019-01-31 14:37:02,091 INFO L273 TraceCheckUtils]: 15: Hoare triple {22349#(or (< (* 4 main_n) (+ main_i 132)) (< (+ main_i 135) (* 4 main_n)) (= (select main_a (+ main_i 132)) 23))} assume a[i] != 23;i := i + 4; {22342#(or (< (* 4 main_n) (+ main_i 128)) (= (select main_a (+ main_i 128)) 23) (< (+ main_i 131) (* 4 main_n)))} is VALID [2019-01-31 14:37:02,091 INFO L273 TraceCheckUtils]: 14: Hoare triple {22349#(or (< (* 4 main_n) (+ main_i 132)) (< (+ main_i 135) (* 4 main_n)) (= (select main_a (+ main_i 132)) 23))} assume i <= n * 4; {22349#(or (< (* 4 main_n) (+ main_i 132)) (< (+ main_i 135) (* 4 main_n)) (= (select main_a (+ main_i 132)) 23))} is VALID [2019-01-31 14:37:02,092 INFO L273 TraceCheckUtils]: 13: Hoare triple {22356#(or (< (+ main_i 139) (* 4 main_n)) (= (select main_a (+ main_i 136)) 23) (< (* 4 main_n) (+ main_i 136)))} assume a[i] != 23;i := i + 4; {22349#(or (< (* 4 main_n) (+ main_i 132)) (< (+ main_i 135) (* 4 main_n)) (= (select main_a (+ main_i 132)) 23))} is VALID [2019-01-31 14:37:02,092 INFO L273 TraceCheckUtils]: 12: Hoare triple {22356#(or (< (+ main_i 139) (* 4 main_n)) (= (select main_a (+ main_i 136)) 23) (< (* 4 main_n) (+ main_i 136)))} assume i <= n * 4; {22356#(or (< (+ main_i 139) (* 4 main_n)) (= (select main_a (+ main_i 136)) 23) (< (* 4 main_n) (+ main_i 136)))} is VALID [2019-01-31 14:37:02,093 INFO L273 TraceCheckUtils]: 11: Hoare triple {22363#(or (< (* 4 main_n) (+ main_i 140)) (< (+ main_i 143) (* 4 main_n)) (= (select main_a (+ main_i 140)) 23))} assume a[i] != 23;i := i + 4; {22356#(or (< (+ main_i 139) (* 4 main_n)) (= (select main_a (+ main_i 136)) 23) (< (* 4 main_n) (+ main_i 136)))} is VALID [2019-01-31 14:37:02,094 INFO L273 TraceCheckUtils]: 10: Hoare triple {22363#(or (< (* 4 main_n) (+ main_i 140)) (< (+ main_i 143) (* 4 main_n)) (= (select main_a (+ main_i 140)) 23))} assume i <= n * 4; {22363#(or (< (* 4 main_n) (+ main_i 140)) (< (+ main_i 143) (* 4 main_n)) (= (select main_a (+ main_i 140)) 23))} is VALID [2019-01-31 14:37:02,095 INFO L273 TraceCheckUtils]: 9: Hoare triple {22370#(or (= (select main_a (+ main_i 144)) 23) (< (+ main_i 147) (* 4 main_n)) (< (* 4 main_n) (+ main_i 144)))} assume a[i] != 23;i := i + 4; {22363#(or (< (* 4 main_n) (+ main_i 140)) (< (+ main_i 143) (* 4 main_n)) (= (select main_a (+ main_i 140)) 23))} is VALID [2019-01-31 14:37:02,095 INFO L273 TraceCheckUtils]: 8: Hoare triple {22370#(or (= (select main_a (+ main_i 144)) 23) (< (+ main_i 147) (* 4 main_n)) (< (* 4 main_n) (+ main_i 144)))} assume i <= n * 4; {22370#(or (= (select main_a (+ main_i 144)) 23) (< (+ main_i 147) (* 4 main_n)) (< (* 4 main_n) (+ main_i 144)))} is VALID [2019-01-31 14:37:02,097 INFO L273 TraceCheckUtils]: 7: Hoare triple {22377#(or (< (+ main_i 151) (* 4 main_n)) (< (* 4 main_n) (+ main_i 148)) (= (select main_a (+ main_i 148)) 23))} assume a[i] != 23;i := i + 4; {22370#(or (= (select main_a (+ main_i 144)) 23) (< (+ main_i 147) (* 4 main_n)) (< (* 4 main_n) (+ main_i 144)))} is VALID [2019-01-31 14:37:02,097 INFO L273 TraceCheckUtils]: 6: Hoare triple {22377#(or (< (+ main_i 151) (* 4 main_n)) (< (* 4 main_n) (+ main_i 148)) (= (select main_a (+ main_i 148)) 23))} assume i <= n * 4; {22377#(or (< (+ main_i 151) (* 4 main_n)) (< (* 4 main_n) (+ main_i 148)) (= (select main_a (+ main_i 148)) 23))} is VALID [2019-01-31 14:37:02,098 INFO L273 TraceCheckUtils]: 5: Hoare triple {22384#(or (= 23 (select main_a (+ main_i 152))) (< (+ main_i 155) (* 4 main_n)) (< (* 4 main_n) (+ main_i 152)))} assume a[i] != 23;i := i + 4; {22377#(or (< (+ main_i 151) (* 4 main_n)) (< (* 4 main_n) (+ main_i 148)) (= (select main_a (+ main_i 148)) 23))} is VALID [2019-01-31 14:37:02,099 INFO L273 TraceCheckUtils]: 4: Hoare triple {22384#(or (= 23 (select main_a (+ main_i 152))) (< (+ main_i 155) (* 4 main_n)) (< (* 4 main_n) (+ main_i 152)))} assume i <= n * 4; {22384#(or (= 23 (select main_a (+ main_i 152))) (< (+ main_i 155) (* 4 main_n)) (< (* 4 main_n) (+ main_i 152)))} is VALID [2019-01-31 14:37:02,100 INFO L273 TraceCheckUtils]: 3: Hoare triple {22391#(or (< (+ main_i 159) (* 4 main_n)) (= (select main_a (+ main_i 156)) 23) (< (* 4 main_n) (+ main_i 156)))} assume a[i] != 23;i := i + 4; {22384#(or (= 23 (select main_a (+ main_i 152))) (< (+ main_i 155) (* 4 main_n)) (< (* 4 main_n) (+ main_i 152)))} is VALID [2019-01-31 14:37:02,101 INFO L273 TraceCheckUtils]: 2: Hoare triple {22391#(or (< (+ main_i 159) (* 4 main_n)) (= (select main_a (+ main_i 156)) 23) (< (* 4 main_n) (+ main_i 156)))} assume i <= n * 4; {22391#(or (< (+ main_i 159) (* 4 main_n)) (= (select main_a (+ main_i 156)) 23) (< (* 4 main_n) (+ main_i 156)))} is VALID [2019-01-31 14:37:02,102 INFO L273 TraceCheckUtils]: 1: Hoare triple {22398#(or (< (+ main_i 163) (* 4 main_n)) (= (select main_a (+ main_i 160)) 23) (< (* 4 main_n) (+ main_i 160)))} assume a[i] != 23;i := i + 4; {22391#(or (< (+ main_i 159) (* 4 main_n)) (= (select main_a (+ main_i 156)) 23) (< (* 4 main_n) (+ main_i 156)))} is VALID [2019-01-31 14:37:02,103 INFO L273 TraceCheckUtils]: 0: Hoare triple {21777#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {22398#(or (< (+ main_i 163) (* 4 main_n)) (= (select main_a (+ main_i 160)) 23) (< (* 4 main_n) (+ main_i 160)))} is VALID [2019-01-31 14:37:02,129 INFO L134 CoverageAnalysis]: Checked inductivity of 1640 backedges. 0 proven. 1640 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-31 14:37:02,149 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-01-31 14:37:02,149 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [43, 43, 43] total 128 [2019-01-31 14:37:02,149 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-01-31 14:37:02,149 INFO L78 Accepts]: Start accepts. Automaton has 87 states. Word has length 83 [2019-01-31 14:37:02,150 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-01-31 14:37:02,150 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 87 states. [2019-01-31 14:37:02,352 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 165 edges. 165 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-01-31 14:37:02,352 INFO L459 AbstractCegarLoop]: Interpolant automaton has 87 states [2019-01-31 14:37:02,353 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 87 interpolants. [2019-01-31 14:37:02,353 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2072, Invalid=14698, Unknown=0, NotChecked=0, Total=16770 [2019-01-31 14:37:02,353 INFO L87 Difference]: Start difference. First operand 84 states and 84 transitions. Second operand 87 states. [2019-01-31 14:37:12,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 14:37:12,654 INFO L93 Difference]: Finished difference Result 88 states and 88 transitions. [2019-01-31 14:37:12,654 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2019-01-31 14:37:12,654 INFO L78 Accepts]: Start accepts. Automaton has 87 states. Word has length 83 [2019-01-31 14:37:12,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-31 14:37:12,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 87 states. [2019-01-31 14:37:12,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 88 transitions. [2019-01-31 14:37:12,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 87 states. [2019-01-31 14:37:12,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 88 transitions. [2019-01-31 14:37:12,656 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 45 states and 88 transitions. [2019-01-31 14:37:12,752 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 88 edges. 88 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-01-31 14:37:12,754 INFO L225 Difference]: With dead ends: 88 [2019-01-31 14:37:12,754 INFO L226 Difference]: Without dead ends: 87 [2019-01-31 14:37:12,755 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 207 GetRequests, 78 SyntacticMatches, 1 SemanticMatches, 128 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3780 ImplicationChecksByTransitivity, 9.4s TimeCoverageRelationStatistics Valid=2072, Invalid=14698, Unknown=0, NotChecked=0, Total=16770 [2019-01-31 14:37:12,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2019-01-31 14:37:12,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 86. [2019-01-31 14:37:12,863 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-01-31 14:37:12,863 INFO L82 GeneralOperation]: Start isEquivalent. First operand 87 states. Second operand 86 states. [2019-01-31 14:37:12,864 INFO L74 IsIncluded]: Start isIncluded. First operand 87 states. Second operand 86 states. [2019-01-31 14:37:12,864 INFO L87 Difference]: Start difference. First operand 87 states. Second operand 86 states. [2019-01-31 14:37:12,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 14:37:12,865 INFO L93 Difference]: Finished difference Result 87 states and 87 transitions. [2019-01-31 14:37:12,865 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 87 transitions. [2019-01-31 14:37:12,866 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-31 14:37:12,866 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-01-31 14:37:12,866 INFO L74 IsIncluded]: Start isIncluded. First operand 86 states. Second operand 87 states. [2019-01-31 14:37:12,866 INFO L87 Difference]: Start difference. First operand 86 states. Second operand 87 states. [2019-01-31 14:37:12,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 14:37:12,868 INFO L93 Difference]: Finished difference Result 87 states and 87 transitions. [2019-01-31 14:37:12,868 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 87 transitions. [2019-01-31 14:37:12,868 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-31 14:37:12,868 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-01-31 14:37:12,868 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-01-31 14:37:12,868 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-01-31 14:37:12,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 86 states. [2019-01-31 14:37:12,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 86 transitions. [2019-01-31 14:37:12,870 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 86 transitions. Word has length 83 [2019-01-31 14:37:12,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-31 14:37:12,870 INFO L480 AbstractCegarLoop]: Abstraction has 86 states and 86 transitions. [2019-01-31 14:37:12,870 INFO L481 AbstractCegarLoop]: Interpolant automaton has 87 states. [2019-01-31 14:37:12,870 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 86 transitions. [2019-01-31 14:37:12,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2019-01-31 14:37:12,871 INFO L394 BasicCegarLoop]: Found error trace [2019-01-31 14:37:12,871 INFO L402 BasicCegarLoop]: trace histogram [42, 41, 1, 1] [2019-01-31 14:37:12,871 INFO L423 AbstractCegarLoop]: === Iteration 42 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-01-31 14:37:12,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-31 14:37:12,871 INFO L82 PathProgramCache]: Analyzing trace with hash 1765011826, now seen corresponding path program 41 times [2019-01-31 14:37:12,871 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-01-31 14:37:12,872 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-31 14:37:12,872 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-31 14:37:12,872 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-31 14:37:12,872 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-01-31 14:37:12,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-31 14:37:15,459 INFO L273 TraceCheckUtils]: 0: Hoare triple {22834#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {22836#(and (or (<= 0 main_i) (< 41 main_n)) (or (<= main_i 0) (<= main_n 41)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:15,460 INFO L273 TraceCheckUtils]: 1: Hoare triple {22836#(and (or (<= 0 main_i) (< 41 main_n)) (or (<= main_i 0) (<= main_n 41)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {22837#(and (or (<= main_n 41) (<= main_i 4)) (or (< 41 main_n) (<= 4 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:15,461 INFO L273 TraceCheckUtils]: 2: Hoare triple {22837#(and (or (<= main_n 41) (<= main_i 4)) (or (< 41 main_n) (<= 4 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {22837#(and (or (<= main_n 41) (<= main_i 4)) (or (< 41 main_n) (<= 4 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:15,462 INFO L273 TraceCheckUtils]: 3: Hoare triple {22837#(and (or (<= main_n 41) (<= main_i 4)) (or (< 41 main_n) (<= 4 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {22838#(and (or (<= 8 main_i) (< 41 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 8) (<= main_n 41)))} is VALID [2019-01-31 14:37:15,463 INFO L273 TraceCheckUtils]: 4: Hoare triple {22838#(and (or (<= 8 main_i) (< 41 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 8) (<= main_n 41)))} assume i <= n * 4; {22838#(and (or (<= 8 main_i) (< 41 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 8) (<= main_n 41)))} is VALID [2019-01-31 14:37:15,464 INFO L273 TraceCheckUtils]: 5: Hoare triple {22838#(and (or (<= 8 main_i) (< 41 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 8) (<= main_n 41)))} assume a[i] != 23;i := i + 4; {22839#(and (or (< 41 main_n) (<= 12 main_i)) (or (<= main_n 41) (<= main_i 12)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:15,465 INFO L273 TraceCheckUtils]: 6: Hoare triple {22839#(and (or (< 41 main_n) (<= 12 main_i)) (or (<= main_n 41) (<= main_i 12)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {22839#(and (or (< 41 main_n) (<= 12 main_i)) (or (<= main_n 41) (<= main_i 12)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:15,466 INFO L273 TraceCheckUtils]: 7: Hoare triple {22839#(and (or (< 41 main_n) (<= 12 main_i)) (or (<= main_n 41) (<= main_i 12)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {22840#(and (or (<= main_n 41) (<= main_i 16)) (or (< 41 main_n) (<= 16 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:15,466 INFO L273 TraceCheckUtils]: 8: Hoare triple {22840#(and (or (<= main_n 41) (<= main_i 16)) (or (< 41 main_n) (<= 16 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {22840#(and (or (<= main_n 41) (<= main_i 16)) (or (< 41 main_n) (<= 16 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:15,467 INFO L273 TraceCheckUtils]: 9: Hoare triple {22840#(and (or (<= main_n 41) (<= main_i 16)) (or (< 41 main_n) (<= 16 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {22841#(and (or (< 41 main_n) (<= 20 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 20) (<= main_n 41)))} is VALID [2019-01-31 14:37:15,468 INFO L273 TraceCheckUtils]: 10: Hoare triple {22841#(and (or (< 41 main_n) (<= 20 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 20) (<= main_n 41)))} assume i <= n * 4; {22841#(and (or (< 41 main_n) (<= 20 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 20) (<= main_n 41)))} is VALID [2019-01-31 14:37:15,469 INFO L273 TraceCheckUtils]: 11: Hoare triple {22841#(and (or (< 41 main_n) (<= 20 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 20) (<= main_n 41)))} assume a[i] != 23;i := i + 4; {22842#(and (or (<= 24 main_i) (< 41 main_n)) (or (<= main_i 24) (<= main_n 41)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:15,470 INFO L273 TraceCheckUtils]: 12: Hoare triple {22842#(and (or (<= 24 main_i) (< 41 main_n)) (or (<= main_i 24) (<= main_n 41)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {22842#(and (or (<= 24 main_i) (< 41 main_n)) (or (<= main_i 24) (<= main_n 41)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:15,471 INFO L273 TraceCheckUtils]: 13: Hoare triple {22842#(and (or (<= 24 main_i) (< 41 main_n)) (or (<= main_i 24) (<= main_n 41)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {22843#(and (or (<= main_n 41) (<= main_i 28)) (or (<= 28 main_i) (< 41 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:15,472 INFO L273 TraceCheckUtils]: 14: Hoare triple {22843#(and (or (<= main_n 41) (<= main_i 28)) (or (<= 28 main_i) (< 41 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {22843#(and (or (<= main_n 41) (<= main_i 28)) (or (<= 28 main_i) (< 41 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:15,473 INFO L273 TraceCheckUtils]: 15: Hoare triple {22843#(and (or (<= main_n 41) (<= main_i 28)) (or (<= 28 main_i) (< 41 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {22844#(and (or (<= 32 main_i) (< 41 main_n)) (or (<= main_i 32) (<= main_n 41)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:15,473 INFO L273 TraceCheckUtils]: 16: Hoare triple {22844#(and (or (<= 32 main_i) (< 41 main_n)) (or (<= main_i 32) (<= main_n 41)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {22844#(and (or (<= 32 main_i) (< 41 main_n)) (or (<= main_i 32) (<= main_n 41)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:15,474 INFO L273 TraceCheckUtils]: 17: Hoare triple {22844#(and (or (<= 32 main_i) (< 41 main_n)) (or (<= main_i 32) (<= main_n 41)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {22845#(and (or (< 41 main_n) (<= 36 main_i)) (or (<= main_i 36) (<= main_n 41)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:15,475 INFO L273 TraceCheckUtils]: 18: Hoare triple {22845#(and (or (< 41 main_n) (<= 36 main_i)) (or (<= main_i 36) (<= main_n 41)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {22845#(and (or (< 41 main_n) (<= 36 main_i)) (or (<= main_i 36) (<= main_n 41)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:15,476 INFO L273 TraceCheckUtils]: 19: Hoare triple {22845#(and (or (< 41 main_n) (<= 36 main_i)) (or (<= main_i 36) (<= main_n 41)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {22846#(and (or (<= 40 main_i) (< 41 main_n)) (or (<= main_i 40) (<= main_n 41)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:15,477 INFO L273 TraceCheckUtils]: 20: Hoare triple {22846#(and (or (<= 40 main_i) (< 41 main_n)) (or (<= main_i 40) (<= main_n 41)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {22846#(and (or (<= 40 main_i) (< 41 main_n)) (or (<= main_i 40) (<= main_n 41)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:15,478 INFO L273 TraceCheckUtils]: 21: Hoare triple {22846#(and (or (<= 40 main_i) (< 41 main_n)) (or (<= main_i 40) (<= main_n 41)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {22847#(and (or (<= main_n 41) (<= main_i 44)) (or (<= 44 main_i) (< 41 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:15,479 INFO L273 TraceCheckUtils]: 22: Hoare triple {22847#(and (or (<= main_n 41) (<= main_i 44)) (or (<= 44 main_i) (< 41 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {22847#(and (or (<= main_n 41) (<= main_i 44)) (or (<= 44 main_i) (< 41 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:15,480 INFO L273 TraceCheckUtils]: 23: Hoare triple {22847#(and (or (<= main_n 41) (<= main_i 44)) (or (<= 44 main_i) (< 41 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {22848#(and (or (<= 48 main_i) (< 41 main_n)) (or (<= main_n 41) (<= main_i 48)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:15,481 INFO L273 TraceCheckUtils]: 24: Hoare triple {22848#(and (or (<= 48 main_i) (< 41 main_n)) (or (<= main_n 41) (<= main_i 48)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {22848#(and (or (<= 48 main_i) (< 41 main_n)) (or (<= main_n 41) (<= main_i 48)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:15,482 INFO L273 TraceCheckUtils]: 25: Hoare triple {22848#(and (or (<= 48 main_i) (< 41 main_n)) (or (<= main_n 41) (<= main_i 48)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {22849#(and (or (<= main_i 52) (<= main_n 41)) (or (< 41 main_n) (<= 52 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:15,482 INFO L273 TraceCheckUtils]: 26: Hoare triple {22849#(and (or (<= main_i 52) (<= main_n 41)) (or (< 41 main_n) (<= 52 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {22849#(and (or (<= main_i 52) (<= main_n 41)) (or (< 41 main_n) (<= 52 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:15,483 INFO L273 TraceCheckUtils]: 27: Hoare triple {22849#(and (or (<= main_i 52) (<= main_n 41)) (or (< 41 main_n) (<= 52 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {22850#(and (or (< 41 main_n) (<= 56 main_i)) (or (<= main_n 41) (<= main_i 56)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:15,484 INFO L273 TraceCheckUtils]: 28: Hoare triple {22850#(and (or (< 41 main_n) (<= 56 main_i)) (or (<= main_n 41) (<= main_i 56)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {22850#(and (or (< 41 main_n) (<= 56 main_i)) (or (<= main_n 41) (<= main_i 56)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:15,485 INFO L273 TraceCheckUtils]: 29: Hoare triple {22850#(and (or (< 41 main_n) (<= 56 main_i)) (or (<= main_n 41) (<= main_i 56)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {22851#(and (or (< 41 main_n) (<= 60 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 60) (<= main_n 41)))} is VALID [2019-01-31 14:37:15,486 INFO L273 TraceCheckUtils]: 30: Hoare triple {22851#(and (or (< 41 main_n) (<= 60 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 60) (<= main_n 41)))} assume i <= n * 4; {22851#(and (or (< 41 main_n) (<= 60 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 60) (<= main_n 41)))} is VALID [2019-01-31 14:37:15,487 INFO L273 TraceCheckUtils]: 31: Hoare triple {22851#(and (or (< 41 main_n) (<= 60 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 60) (<= main_n 41)))} assume a[i] != 23;i := i + 4; {22852#(and (or (<= main_i 64) (<= main_n 41)) (or (<= 64 main_i) (< 41 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:15,488 INFO L273 TraceCheckUtils]: 32: Hoare triple {22852#(and (or (<= main_i 64) (<= main_n 41)) (or (<= 64 main_i) (< 41 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {22852#(and (or (<= main_i 64) (<= main_n 41)) (or (<= 64 main_i) (< 41 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:15,489 INFO L273 TraceCheckUtils]: 33: Hoare triple {22852#(and (or (<= main_i 64) (<= main_n 41)) (or (<= 64 main_i) (< 41 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {22853#(and (or (<= main_n 41) (<= main_i 68)) (= 23 (select main_a (* 4 main_n))) (or (< 41 main_n) (<= 68 main_i)))} is VALID [2019-01-31 14:37:15,489 INFO L273 TraceCheckUtils]: 34: Hoare triple {22853#(and (or (<= main_n 41) (<= main_i 68)) (= 23 (select main_a (* 4 main_n))) (or (< 41 main_n) (<= 68 main_i)))} assume i <= n * 4; {22853#(and (or (<= main_n 41) (<= main_i 68)) (= 23 (select main_a (* 4 main_n))) (or (< 41 main_n) (<= 68 main_i)))} is VALID [2019-01-31 14:37:15,490 INFO L273 TraceCheckUtils]: 35: Hoare triple {22853#(and (or (<= main_n 41) (<= main_i 68)) (= 23 (select main_a (* 4 main_n))) (or (< 41 main_n) (<= 68 main_i)))} assume a[i] != 23;i := i + 4; {22854#(and (or (<= main_n 41) (<= main_i 72)) (or (<= 72 main_i) (< 41 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:15,491 INFO L273 TraceCheckUtils]: 36: Hoare triple {22854#(and (or (<= main_n 41) (<= main_i 72)) (or (<= 72 main_i) (< 41 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {22854#(and (or (<= main_n 41) (<= main_i 72)) (or (<= 72 main_i) (< 41 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:15,492 INFO L273 TraceCheckUtils]: 37: Hoare triple {22854#(and (or (<= main_n 41) (<= main_i 72)) (or (<= 72 main_i) (< 41 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {22855#(and (= 23 (select main_a (* 4 main_n))) (or (<= 76 main_i) (< 41 main_n)) (or (<= main_i 76) (<= main_n 41)))} is VALID [2019-01-31 14:37:15,493 INFO L273 TraceCheckUtils]: 38: Hoare triple {22855#(and (= 23 (select main_a (* 4 main_n))) (or (<= 76 main_i) (< 41 main_n)) (or (<= main_i 76) (<= main_n 41)))} assume i <= n * 4; {22855#(and (= 23 (select main_a (* 4 main_n))) (or (<= 76 main_i) (< 41 main_n)) (or (<= main_i 76) (<= main_n 41)))} is VALID [2019-01-31 14:37:15,494 INFO L273 TraceCheckUtils]: 39: Hoare triple {22855#(and (= 23 (select main_a (* 4 main_n))) (or (<= 76 main_i) (< 41 main_n)) (or (<= main_i 76) (<= main_n 41)))} assume a[i] != 23;i := i + 4; {22856#(and (or (<= main_n 41) (<= main_i 80)) (= 23 (select main_a (* 4 main_n))) (or (<= 80 main_i) (< 41 main_n)))} is VALID [2019-01-31 14:37:15,495 INFO L273 TraceCheckUtils]: 40: Hoare triple {22856#(and (or (<= main_n 41) (<= main_i 80)) (= 23 (select main_a (* 4 main_n))) (or (<= 80 main_i) (< 41 main_n)))} assume i <= n * 4; {22856#(and (or (<= main_n 41) (<= main_i 80)) (= 23 (select main_a (* 4 main_n))) (or (<= 80 main_i) (< 41 main_n)))} is VALID [2019-01-31 14:37:15,496 INFO L273 TraceCheckUtils]: 41: Hoare triple {22856#(and (or (<= main_n 41) (<= main_i 80)) (= 23 (select main_a (* 4 main_n))) (or (<= 80 main_i) (< 41 main_n)))} assume a[i] != 23;i := i + 4; {22857#(and (or (<= main_i 84) (<= main_n 41)) (or (< 41 main_n) (<= 84 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:15,497 INFO L273 TraceCheckUtils]: 42: Hoare triple {22857#(and (or (<= main_i 84) (<= main_n 41)) (or (< 41 main_n) (<= 84 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {22857#(and (or (<= main_i 84) (<= main_n 41)) (or (< 41 main_n) (<= 84 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:15,498 INFO L273 TraceCheckUtils]: 43: Hoare triple {22857#(and (or (<= main_i 84) (<= main_n 41)) (or (< 41 main_n) (<= 84 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {22858#(and (or (< 41 main_n) (<= 88 main_i)) (or (<= main_i 88) (<= main_n 41)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:15,498 INFO L273 TraceCheckUtils]: 44: Hoare triple {22858#(and (or (< 41 main_n) (<= 88 main_i)) (or (<= main_i 88) (<= main_n 41)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {22858#(and (or (< 41 main_n) (<= 88 main_i)) (or (<= main_i 88) (<= main_n 41)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:15,499 INFO L273 TraceCheckUtils]: 45: Hoare triple {22858#(and (or (< 41 main_n) (<= 88 main_i)) (or (<= main_i 88) (<= main_n 41)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {22859#(and (or (<= main_i 92) (<= main_n 41)) (or (< 41 main_n) (<= 92 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:15,500 INFO L273 TraceCheckUtils]: 46: Hoare triple {22859#(and (or (<= main_i 92) (<= main_n 41)) (or (< 41 main_n) (<= 92 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {22859#(and (or (<= main_i 92) (<= main_n 41)) (or (< 41 main_n) (<= 92 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:15,501 INFO L273 TraceCheckUtils]: 47: Hoare triple {22859#(and (or (<= main_i 92) (<= main_n 41)) (or (< 41 main_n) (<= 92 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {22860#(and (or (<= 96 main_i) (< 41 main_n)) (or (<= main_i 96) (<= main_n 41)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:15,502 INFO L273 TraceCheckUtils]: 48: Hoare triple {22860#(and (or (<= 96 main_i) (< 41 main_n)) (or (<= main_i 96) (<= main_n 41)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {22860#(and (or (<= 96 main_i) (< 41 main_n)) (or (<= main_i 96) (<= main_n 41)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:15,503 INFO L273 TraceCheckUtils]: 49: Hoare triple {22860#(and (or (<= 96 main_i) (< 41 main_n)) (or (<= main_i 96) (<= main_n 41)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {22861#(and (or (<= main_i 100) (<= main_n 41)) (or (<= 100 main_i) (< 41 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:15,504 INFO L273 TraceCheckUtils]: 50: Hoare triple {22861#(and (or (<= main_i 100) (<= main_n 41)) (or (<= 100 main_i) (< 41 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {22861#(and (or (<= main_i 100) (<= main_n 41)) (or (<= 100 main_i) (< 41 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:15,505 INFO L273 TraceCheckUtils]: 51: Hoare triple {22861#(and (or (<= main_i 100) (<= main_n 41)) (or (<= 100 main_i) (< 41 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {22862#(and (or (<= 104 main_i) (< 41 main_n)) (or (<= main_i 104) (<= main_n 41)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:15,505 INFO L273 TraceCheckUtils]: 52: Hoare triple {22862#(and (or (<= 104 main_i) (< 41 main_n)) (or (<= main_i 104) (<= main_n 41)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {22862#(and (or (<= 104 main_i) (< 41 main_n)) (or (<= main_i 104) (<= main_n 41)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:15,506 INFO L273 TraceCheckUtils]: 53: Hoare triple {22862#(and (or (<= 104 main_i) (< 41 main_n)) (or (<= main_i 104) (<= main_n 41)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {22863#(and (or (<= 108 main_i) (< 41 main_n)) (or (<= main_n 41) (<= main_i 108)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:15,507 INFO L273 TraceCheckUtils]: 54: Hoare triple {22863#(and (or (<= 108 main_i) (< 41 main_n)) (or (<= main_n 41) (<= main_i 108)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {22863#(and (or (<= 108 main_i) (< 41 main_n)) (or (<= main_n 41) (<= main_i 108)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:15,508 INFO L273 TraceCheckUtils]: 55: Hoare triple {22863#(and (or (<= 108 main_i) (< 41 main_n)) (or (<= main_n 41) (<= main_i 108)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {22864#(and (or (<= main_n 41) (<= main_i 112)) (or (< 41 main_n) (<= 112 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:15,509 INFO L273 TraceCheckUtils]: 56: Hoare triple {22864#(and (or (<= main_n 41) (<= main_i 112)) (or (< 41 main_n) (<= 112 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {22864#(and (or (<= main_n 41) (<= main_i 112)) (or (< 41 main_n) (<= 112 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:15,510 INFO L273 TraceCheckUtils]: 57: Hoare triple {22864#(and (or (<= main_n 41) (<= main_i 112)) (or (< 41 main_n) (<= 112 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {22865#(and (or (<= 116 main_i) (< 41 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 116) (<= main_n 41)))} is VALID [2019-01-31 14:37:15,511 INFO L273 TraceCheckUtils]: 58: Hoare triple {22865#(and (or (<= 116 main_i) (< 41 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 116) (<= main_n 41)))} assume i <= n * 4; {22865#(and (or (<= 116 main_i) (< 41 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 116) (<= main_n 41)))} is VALID [2019-01-31 14:37:15,512 INFO L273 TraceCheckUtils]: 59: Hoare triple {22865#(and (or (<= 116 main_i) (< 41 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 116) (<= main_n 41)))} assume a[i] != 23;i := i + 4; {22866#(and (or (<= main_i 120) (<= main_n 41)) (or (<= 120 main_i) (< 41 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:15,513 INFO L273 TraceCheckUtils]: 60: Hoare triple {22866#(and (or (<= main_i 120) (<= main_n 41)) (or (<= 120 main_i) (< 41 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {22866#(and (or (<= main_i 120) (<= main_n 41)) (or (<= 120 main_i) (< 41 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:15,514 INFO L273 TraceCheckUtils]: 61: Hoare triple {22866#(and (or (<= main_i 120) (<= main_n 41)) (or (<= 120 main_i) (< 41 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {22867#(and (or (<= main_n 41) (<= main_i 124)) (or (<= 124 main_i) (< 41 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:15,514 INFO L273 TraceCheckUtils]: 62: Hoare triple {22867#(and (or (<= main_n 41) (<= main_i 124)) (or (<= 124 main_i) (< 41 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {22867#(and (or (<= main_n 41) (<= main_i 124)) (or (<= 124 main_i) (< 41 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:15,515 INFO L273 TraceCheckUtils]: 63: Hoare triple {22867#(and (or (<= main_n 41) (<= main_i 124)) (or (<= 124 main_i) (< 41 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {22868#(and (or (< 41 main_n) (<= 128 main_i)) (or (<= main_n 41) (<= main_i 128)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:15,516 INFO L273 TraceCheckUtils]: 64: Hoare triple {22868#(and (or (< 41 main_n) (<= 128 main_i)) (or (<= main_n 41) (<= main_i 128)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {22868#(and (or (< 41 main_n) (<= 128 main_i)) (or (<= main_n 41) (<= main_i 128)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:15,517 INFO L273 TraceCheckUtils]: 65: Hoare triple {22868#(and (or (< 41 main_n) (<= 128 main_i)) (or (<= main_n 41) (<= main_i 128)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {22869#(and (or (<= 132 main_i) (< 41 main_n)) (or (<= main_i 132) (<= main_n 41)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:15,518 INFO L273 TraceCheckUtils]: 66: Hoare triple {22869#(and (or (<= 132 main_i) (< 41 main_n)) (or (<= main_i 132) (<= main_n 41)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {22869#(and (or (<= 132 main_i) (< 41 main_n)) (or (<= main_i 132) (<= main_n 41)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:15,519 INFO L273 TraceCheckUtils]: 67: Hoare triple {22869#(and (or (<= 132 main_i) (< 41 main_n)) (or (<= main_i 132) (<= main_n 41)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {22870#(and (or (<= main_i 136) (<= main_n 41)) (or (<= 136 main_i) (< 41 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:15,520 INFO L273 TraceCheckUtils]: 68: Hoare triple {22870#(and (or (<= main_i 136) (<= main_n 41)) (or (<= 136 main_i) (< 41 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {22870#(and (or (<= main_i 136) (<= main_n 41)) (or (<= 136 main_i) (< 41 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:15,521 INFO L273 TraceCheckUtils]: 69: Hoare triple {22870#(and (or (<= main_i 136) (<= main_n 41)) (or (<= 136 main_i) (< 41 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {22871#(and (or (<= main_n 41) (<= main_i 140)) (= 23 (select main_a (* 4 main_n))) (or (< 41 main_n) (<= 140 main_i)))} is VALID [2019-01-31 14:37:15,521 INFO L273 TraceCheckUtils]: 70: Hoare triple {22871#(and (or (<= main_n 41) (<= main_i 140)) (= 23 (select main_a (* 4 main_n))) (or (< 41 main_n) (<= 140 main_i)))} assume i <= n * 4; {22871#(and (or (<= main_n 41) (<= main_i 140)) (= 23 (select main_a (* 4 main_n))) (or (< 41 main_n) (<= 140 main_i)))} is VALID [2019-01-31 14:37:15,522 INFO L273 TraceCheckUtils]: 71: Hoare triple {22871#(and (or (<= main_n 41) (<= main_i 140)) (= 23 (select main_a (* 4 main_n))) (or (< 41 main_n) (<= 140 main_i)))} assume a[i] != 23;i := i + 4; {22872#(and (or (<= main_n 41) (<= main_i 144)) (or (<= 144 main_i) (< 41 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:15,523 INFO L273 TraceCheckUtils]: 72: Hoare triple {22872#(and (or (<= main_n 41) (<= main_i 144)) (or (<= 144 main_i) (< 41 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {22872#(and (or (<= main_n 41) (<= main_i 144)) (or (<= 144 main_i) (< 41 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:15,524 INFO L273 TraceCheckUtils]: 73: Hoare triple {22872#(and (or (<= main_n 41) (<= main_i 144)) (or (<= 144 main_i) (< 41 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {22873#(and (or (< 41 main_n) (<= 148 main_i)) (or (<= main_n 41) (<= main_i 148)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:15,525 INFO L273 TraceCheckUtils]: 74: Hoare triple {22873#(and (or (< 41 main_n) (<= 148 main_i)) (or (<= main_n 41) (<= main_i 148)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {22873#(and (or (< 41 main_n) (<= 148 main_i)) (or (<= main_n 41) (<= main_i 148)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:15,526 INFO L273 TraceCheckUtils]: 75: Hoare triple {22873#(and (or (< 41 main_n) (<= 148 main_i)) (or (<= main_n 41) (<= main_i 148)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {22874#(and (or (<= main_n 41) (<= main_i 152)) (or (<= 152 main_i) (< 41 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:15,527 INFO L273 TraceCheckUtils]: 76: Hoare triple {22874#(and (or (<= main_n 41) (<= main_i 152)) (or (<= 152 main_i) (< 41 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {22874#(and (or (<= main_n 41) (<= main_i 152)) (or (<= 152 main_i) (< 41 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:15,528 INFO L273 TraceCheckUtils]: 77: Hoare triple {22874#(and (or (<= main_n 41) (<= main_i 152)) (or (<= 152 main_i) (< 41 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {22875#(and (or (<= main_i 156) (<= main_n 41)) (= 23 (select main_a (* 4 main_n))) (or (<= 156 main_i) (< 41 main_n)))} is VALID [2019-01-31 14:37:15,529 INFO L273 TraceCheckUtils]: 78: Hoare triple {22875#(and (or (<= main_i 156) (<= main_n 41)) (= 23 (select main_a (* 4 main_n))) (or (<= 156 main_i) (< 41 main_n)))} assume i <= n * 4; {22875#(and (or (<= main_i 156) (<= main_n 41)) (= 23 (select main_a (* 4 main_n))) (or (<= 156 main_i) (< 41 main_n)))} is VALID [2019-01-31 14:37:15,530 INFO L273 TraceCheckUtils]: 79: Hoare triple {22875#(and (or (<= main_i 156) (<= main_n 41)) (= 23 (select main_a (* 4 main_n))) (or (<= 156 main_i) (< 41 main_n)))} assume a[i] != 23;i := i + 4; {22876#(and (or (<= main_n 41) (<= main_i 160)) (or (<= 160 main_i) (< 41 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:15,530 INFO L273 TraceCheckUtils]: 80: Hoare triple {22876#(and (or (<= main_n 41) (<= main_i 160)) (or (<= 160 main_i) (< 41 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {22876#(and (or (<= main_n 41) (<= main_i 160)) (or (<= 160 main_i) (< 41 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:15,532 INFO L273 TraceCheckUtils]: 81: Hoare triple {22876#(and (or (<= main_n 41) (<= main_i 160)) (or (<= 160 main_i) (< 41 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {22877#(and (or (= (* 4 main_n) main_i) (and (or (<= main_i 164) (<= main_n 41)) (or (<= (* 4 main_n) main_i) (< 41 main_n)))) (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))))} is VALID [2019-01-31 14:37:15,533 INFO L273 TraceCheckUtils]: 82: Hoare triple {22877#(and (or (= (* 4 main_n) main_i) (and (or (<= main_i 164) (<= main_n 41)) (or (<= (* 4 main_n) main_i) (< 41 main_n)))) (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))))} assume i <= n * 4; {22878#(and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (or (= (* 4 main_n) main_i) (and (<= main_i 164) (< 41 main_n))))} is VALID [2019-01-31 14:37:15,534 INFO L273 TraceCheckUtils]: 83: Hoare triple {22878#(and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (or (= (* 4 main_n) main_i) (and (<= main_i 164) (< 41 main_n))))} assume a[i] != 23;i := i + 4; {22879#(and (< 41 main_n) (<= main_i 168))} is VALID [2019-01-31 14:37:15,534 INFO L273 TraceCheckUtils]: 84: Hoare triple {22879#(and (< 41 main_n) (<= main_i 168))} assume !(i <= n * 4); {22835#false} is VALID [2019-01-31 14:37:15,565 INFO L134 CoverageAnalysis]: Checked inductivity of 1722 backedges. 0 proven. 1722 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-31 14:37:15,565 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-31 14:37:15,565 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-01-31 14:37:15,565 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-01-31 14:37:15,565 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-01-31 14:37:15,566 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-31 14:37:15,566 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 14:37:15,573 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2019-01-31 14:37:15,573 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST2 (IT: FPandBP) [2019-01-31 14:37:15,740 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 42 check-sat command(s) [2019-01-31 14:37:15,740 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-01-31 14:37:15,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-31 14:37:15,768 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-31 14:37:15,798 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 14:37:15,799 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-01-31 14:37:15,808 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-31 14:37:15,808 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2019-01-31 14:37:15,810 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-01-31 14:37:15,810 WARN L398 uantifierElimination]: Input elimination task: ∃ [v_main_a_45]. (and (= (store v_main_a_45 (* 4 main_n) 23) main_a) (= main_i 0)) [2019-01-31 14:37:15,810 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2019-01-31 14:37:18,688 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2019-01-31 14:37:18,690 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-01-31 14:37:18,696 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-31 14:37:18,696 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2019-01-31 14:37:18,698 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-01-31 14:37:18,698 WARN L398 uantifierElimination]: Input elimination task: ∃ [main_a]. (let ((.cse0 (* 4 main_n))) (and (not (= (select main_a 164) 23)) (<= 164 .cse0) (= 23 (select main_a .cse0)) (<= main_i 168))) [2019-01-31 14:37:18,699 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (let ((.cse0 (* 4 main_n))) (and (<= 164 .cse0) (not (= 164 .cse0)) (<= main_i 168))) [2019-01-31 14:37:18,752 INFO L273 TraceCheckUtils]: 0: Hoare triple {22834#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {22883#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:18,752 INFO L273 TraceCheckUtils]: 1: Hoare triple {22883#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {22887#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2019-01-31 14:37:18,753 INFO L273 TraceCheckUtils]: 2: Hoare triple {22887#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume i <= n * 4; {22887#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2019-01-31 14:37:18,753 INFO L273 TraceCheckUtils]: 3: Hoare triple {22887#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume a[i] != 23;i := i + 4; {22894#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:18,754 INFO L273 TraceCheckUtils]: 4: Hoare triple {22894#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {22894#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:18,754 INFO L273 TraceCheckUtils]: 5: Hoare triple {22894#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {22901#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2019-01-31 14:37:18,755 INFO L273 TraceCheckUtils]: 6: Hoare triple {22901#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume i <= n * 4; {22901#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2019-01-31 14:37:18,756 INFO L273 TraceCheckUtils]: 7: Hoare triple {22901#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume a[i] != 23;i := i + 4; {22908#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:18,770 INFO L273 TraceCheckUtils]: 8: Hoare triple {22908#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {22908#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:18,771 INFO L273 TraceCheckUtils]: 9: Hoare triple {22908#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {22915#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:18,771 INFO L273 TraceCheckUtils]: 10: Hoare triple {22915#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {22915#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:18,772 INFO L273 TraceCheckUtils]: 11: Hoare triple {22915#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {22922#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:18,772 INFO L273 TraceCheckUtils]: 12: Hoare triple {22922#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {22922#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:18,773 INFO L273 TraceCheckUtils]: 13: Hoare triple {22922#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {22929#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:18,773 INFO L273 TraceCheckUtils]: 14: Hoare triple {22929#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {22929#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:18,773 INFO L273 TraceCheckUtils]: 15: Hoare triple {22929#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {22936#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:18,774 INFO L273 TraceCheckUtils]: 16: Hoare triple {22936#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {22936#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:18,775 INFO L273 TraceCheckUtils]: 17: Hoare triple {22936#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {22943#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:18,775 INFO L273 TraceCheckUtils]: 18: Hoare triple {22943#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {22943#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:18,776 INFO L273 TraceCheckUtils]: 19: Hoare triple {22943#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {22950#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:18,777 INFO L273 TraceCheckUtils]: 20: Hoare triple {22950#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {22950#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:18,777 INFO L273 TraceCheckUtils]: 21: Hoare triple {22950#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {22957#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:18,778 INFO L273 TraceCheckUtils]: 22: Hoare triple {22957#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {22957#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:18,779 INFO L273 TraceCheckUtils]: 23: Hoare triple {22957#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {22964#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:18,779 INFO L273 TraceCheckUtils]: 24: Hoare triple {22964#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {22964#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:18,780 INFO L273 TraceCheckUtils]: 25: Hoare triple {22964#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {22971#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:18,781 INFO L273 TraceCheckUtils]: 26: Hoare triple {22971#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {22971#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:18,782 INFO L273 TraceCheckUtils]: 27: Hoare triple {22971#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {22978#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:18,782 INFO L273 TraceCheckUtils]: 28: Hoare triple {22978#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {22978#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:18,783 INFO L273 TraceCheckUtils]: 29: Hoare triple {22978#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {22985#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:18,784 INFO L273 TraceCheckUtils]: 30: Hoare triple {22985#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {22985#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:18,784 INFO L273 TraceCheckUtils]: 31: Hoare triple {22985#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {22992#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:18,785 INFO L273 TraceCheckUtils]: 32: Hoare triple {22992#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {22992#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:18,786 INFO L273 TraceCheckUtils]: 33: Hoare triple {22992#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {22999#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:18,786 INFO L273 TraceCheckUtils]: 34: Hoare triple {22999#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {22999#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:18,787 INFO L273 TraceCheckUtils]: 35: Hoare triple {22999#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {23006#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:18,788 INFO L273 TraceCheckUtils]: 36: Hoare triple {23006#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {23006#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:18,788 INFO L273 TraceCheckUtils]: 37: Hoare triple {23006#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {23013#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:18,789 INFO L273 TraceCheckUtils]: 38: Hoare triple {23013#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {23013#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:18,790 INFO L273 TraceCheckUtils]: 39: Hoare triple {23013#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {23020#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} is VALID [2019-01-31 14:37:18,790 INFO L273 TraceCheckUtils]: 40: Hoare triple {23020#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} assume i <= n * 4; {23020#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} is VALID [2019-01-31 14:37:18,791 INFO L273 TraceCheckUtils]: 41: Hoare triple {23020#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} assume a[i] != 23;i := i + 4; {23027#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:18,792 INFO L273 TraceCheckUtils]: 42: Hoare triple {23027#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {23027#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:18,792 INFO L273 TraceCheckUtils]: 43: Hoare triple {23027#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {23034#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:18,793 INFO L273 TraceCheckUtils]: 44: Hoare triple {23034#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {23034#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:18,794 INFO L273 TraceCheckUtils]: 45: Hoare triple {23034#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {23041#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:18,794 INFO L273 TraceCheckUtils]: 46: Hoare triple {23041#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {23041#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:18,795 INFO L273 TraceCheckUtils]: 47: Hoare triple {23041#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {23048#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:18,796 INFO L273 TraceCheckUtils]: 48: Hoare triple {23048#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {23048#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:18,796 INFO L273 TraceCheckUtils]: 49: Hoare triple {23048#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {23055#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:18,797 INFO L273 TraceCheckUtils]: 50: Hoare triple {23055#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {23055#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:18,798 INFO L273 TraceCheckUtils]: 51: Hoare triple {23055#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {23062#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:18,798 INFO L273 TraceCheckUtils]: 52: Hoare triple {23062#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {23062#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:18,799 INFO L273 TraceCheckUtils]: 53: Hoare triple {23062#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {23069#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:18,800 INFO L273 TraceCheckUtils]: 54: Hoare triple {23069#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {23069#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:18,800 INFO L273 TraceCheckUtils]: 55: Hoare triple {23069#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {23076#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:18,801 INFO L273 TraceCheckUtils]: 56: Hoare triple {23076#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {23076#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:18,802 INFO L273 TraceCheckUtils]: 57: Hoare triple {23076#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {23083#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:18,802 INFO L273 TraceCheckUtils]: 58: Hoare triple {23083#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {23083#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:18,803 INFO L273 TraceCheckUtils]: 59: Hoare triple {23083#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {23090#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:18,804 INFO L273 TraceCheckUtils]: 60: Hoare triple {23090#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {23090#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:18,805 INFO L273 TraceCheckUtils]: 61: Hoare triple {23090#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {23097#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:18,805 INFO L273 TraceCheckUtils]: 62: Hoare triple {23097#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {23097#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:18,806 INFO L273 TraceCheckUtils]: 63: Hoare triple {23097#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {23104#(and (= main_i 128) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:18,807 INFO L273 TraceCheckUtils]: 64: Hoare triple {23104#(and (= main_i 128) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {23104#(and (= main_i 128) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:18,807 INFO L273 TraceCheckUtils]: 65: Hoare triple {23104#(and (= main_i 128) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {23111#(and (= main_i 132) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:18,808 INFO L273 TraceCheckUtils]: 66: Hoare triple {23111#(and (= main_i 132) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {23111#(and (= main_i 132) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:18,809 INFO L273 TraceCheckUtils]: 67: Hoare triple {23111#(and (= main_i 132) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {23118#(and (= main_i 136) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:18,809 INFO L273 TraceCheckUtils]: 68: Hoare triple {23118#(and (= main_i 136) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {23118#(and (= main_i 136) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:18,810 INFO L273 TraceCheckUtils]: 69: Hoare triple {23118#(and (= main_i 136) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {23125#(and (= 23 (select main_a (* 4 main_n))) (= main_i 140))} is VALID [2019-01-31 14:37:18,811 INFO L273 TraceCheckUtils]: 70: Hoare triple {23125#(and (= 23 (select main_a (* 4 main_n))) (= main_i 140))} assume i <= n * 4; {23125#(and (= 23 (select main_a (* 4 main_n))) (= main_i 140))} is VALID [2019-01-31 14:37:18,812 INFO L273 TraceCheckUtils]: 71: Hoare triple {23125#(and (= 23 (select main_a (* 4 main_n))) (= main_i 140))} assume a[i] != 23;i := i + 4; {23132#(and (= main_i 144) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:18,812 INFO L273 TraceCheckUtils]: 72: Hoare triple {23132#(and (= main_i 144) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {23132#(and (= main_i 144) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:18,813 INFO L273 TraceCheckUtils]: 73: Hoare triple {23132#(and (= main_i 144) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {23139#(and (= main_i 148) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:18,814 INFO L273 TraceCheckUtils]: 74: Hoare triple {23139#(and (= main_i 148) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {23139#(and (= main_i 148) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:18,814 INFO L273 TraceCheckUtils]: 75: Hoare triple {23139#(and (= main_i 148) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {23146#(and (= main_i 152) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:18,815 INFO L273 TraceCheckUtils]: 76: Hoare triple {23146#(and (= main_i 152) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {23146#(and (= main_i 152) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:18,816 INFO L273 TraceCheckUtils]: 77: Hoare triple {23146#(and (= main_i 152) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {23153#(and (= main_i 156) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:18,816 INFO L273 TraceCheckUtils]: 78: Hoare triple {23153#(and (= main_i 156) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {23153#(and (= main_i 156) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:18,817 INFO L273 TraceCheckUtils]: 79: Hoare triple {23153#(and (= main_i 156) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {23160#(and (= main_i 160) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:18,818 INFO L273 TraceCheckUtils]: 80: Hoare triple {23160#(and (= main_i 160) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {23160#(and (= main_i 160) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:18,818 INFO L273 TraceCheckUtils]: 81: Hoare triple {23160#(and (= main_i 160) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {23167#(and (= 23 (select main_a (* 4 main_n))) (= main_i 164))} is VALID [2019-01-31 14:37:18,819 INFO L273 TraceCheckUtils]: 82: Hoare triple {23167#(and (= 23 (select main_a (* 4 main_n))) (= main_i 164))} assume i <= n * 4; {23171#(and (<= main_i (* 4 main_n)) (= 23 (select main_a (* 4 main_n))) (= main_i 164))} is VALID [2019-01-31 14:37:18,820 INFO L273 TraceCheckUtils]: 83: Hoare triple {23171#(and (<= main_i (* 4 main_n)) (= 23 (select main_a (* 4 main_n))) (= main_i 164))} assume a[i] != 23;i := i + 4; {22879#(and (< 41 main_n) (<= main_i 168))} is VALID [2019-01-31 14:37:18,821 INFO L273 TraceCheckUtils]: 84: Hoare triple {22879#(and (< 41 main_n) (<= main_i 168))} assume !(i <= n * 4); {22835#false} is VALID [2019-01-31 14:37:18,838 INFO L134 CoverageAnalysis]: Checked inductivity of 1722 backedges. 0 proven. 1722 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-31 14:37:18,838 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2019-01-31 14:37:24,032 INFO L273 TraceCheckUtils]: 84: Hoare triple {23178#(<= main_i (* 4 main_n))} assume !(i <= n * 4); {22835#false} is VALID [2019-01-31 14:37:24,033 INFO L273 TraceCheckUtils]: 83: Hoare triple {23182#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} assume a[i] != 23;i := i + 4; {23178#(<= main_i (* 4 main_n))} is VALID [2019-01-31 14:37:24,034 INFO L273 TraceCheckUtils]: 82: Hoare triple {23186#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} assume i <= n * 4; {23182#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} is VALID [2019-01-31 14:37:24,035 INFO L273 TraceCheckUtils]: 81: Hoare triple {23190#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume a[i] != 23;i := i + 4; {23186#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} is VALID [2019-01-31 14:37:24,036 INFO L273 TraceCheckUtils]: 80: Hoare triple {23190#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume i <= n * 4; {23190#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2019-01-31 14:37:24,037 INFO L273 TraceCheckUtils]: 79: Hoare triple {23197#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume a[i] != 23;i := i + 4; {23190#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2019-01-31 14:37:24,037 INFO L273 TraceCheckUtils]: 78: Hoare triple {23197#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume i <= n * 4; {23197#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2019-01-31 14:37:24,038 INFO L273 TraceCheckUtils]: 77: Hoare triple {23204#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume a[i] != 23;i := i + 4; {23197#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2019-01-31 14:37:24,039 INFO L273 TraceCheckUtils]: 76: Hoare triple {23204#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume i <= n * 4; {23204#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2019-01-31 14:37:24,040 INFO L273 TraceCheckUtils]: 75: Hoare triple {23211#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume a[i] != 23;i := i + 4; {23204#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2019-01-31 14:37:24,040 INFO L273 TraceCheckUtils]: 74: Hoare triple {23211#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume i <= n * 4; {23211#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2019-01-31 14:37:24,042 INFO L273 TraceCheckUtils]: 73: Hoare triple {23218#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {23211#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2019-01-31 14:37:24,042 INFO L273 TraceCheckUtils]: 72: Hoare triple {23218#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume i <= n * 4; {23218#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2019-01-31 14:37:24,043 INFO L273 TraceCheckUtils]: 71: Hoare triple {23225#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume a[i] != 23;i := i + 4; {23218#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2019-01-31 14:37:24,044 INFO L273 TraceCheckUtils]: 70: Hoare triple {23225#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume i <= n * 4; {23225#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2019-01-31 14:37:24,045 INFO L273 TraceCheckUtils]: 69: Hoare triple {23232#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {23225#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2019-01-31 14:37:24,045 INFO L273 TraceCheckUtils]: 68: Hoare triple {23232#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume i <= n * 4; {23232#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2019-01-31 14:37:24,046 INFO L273 TraceCheckUtils]: 67: Hoare triple {23239#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {23232#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2019-01-31 14:37:24,047 INFO L273 TraceCheckUtils]: 66: Hoare triple {23239#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume i <= n * 4; {23239#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2019-01-31 14:37:24,048 INFO L273 TraceCheckUtils]: 65: Hoare triple {23246#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {23239#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2019-01-31 14:37:24,048 INFO L273 TraceCheckUtils]: 64: Hoare triple {23246#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume i <= n * 4; {23246#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2019-01-31 14:37:24,049 INFO L273 TraceCheckUtils]: 63: Hoare triple {23253#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} assume a[i] != 23;i := i + 4; {23246#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2019-01-31 14:37:24,050 INFO L273 TraceCheckUtils]: 62: Hoare triple {23253#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} assume i <= n * 4; {23253#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} is VALID [2019-01-31 14:37:24,051 INFO L273 TraceCheckUtils]: 61: Hoare triple {23260#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {23253#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} is VALID [2019-01-31 14:37:24,051 INFO L273 TraceCheckUtils]: 60: Hoare triple {23260#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} assume i <= n * 4; {23260#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} is VALID [2019-01-31 14:37:24,053 INFO L273 TraceCheckUtils]: 59: Hoare triple {23267#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {23260#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} is VALID [2019-01-31 14:37:24,053 INFO L273 TraceCheckUtils]: 58: Hoare triple {23267#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} assume i <= n * 4; {23267#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} is VALID [2019-01-31 14:37:24,054 INFO L273 TraceCheckUtils]: 57: Hoare triple {23274#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} assume a[i] != 23;i := i + 4; {23267#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} is VALID [2019-01-31 14:37:24,055 INFO L273 TraceCheckUtils]: 56: Hoare triple {23274#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} assume i <= n * 4; {23274#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} is VALID [2019-01-31 14:37:24,056 INFO L273 TraceCheckUtils]: 55: Hoare triple {23281#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {23274#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} is VALID [2019-01-31 14:37:24,056 INFO L273 TraceCheckUtils]: 54: Hoare triple {23281#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} assume i <= n * 4; {23281#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} is VALID [2019-01-31 14:37:24,057 INFO L273 TraceCheckUtils]: 53: Hoare triple {23288#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} assume a[i] != 23;i := i + 4; {23281#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} is VALID [2019-01-31 14:37:24,058 INFO L273 TraceCheckUtils]: 52: Hoare triple {23288#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} assume i <= n * 4; {23288#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} is VALID [2019-01-31 14:37:24,059 INFO L273 TraceCheckUtils]: 51: Hoare triple {23295#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} assume a[i] != 23;i := i + 4; {23288#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} is VALID [2019-01-31 14:37:24,059 INFO L273 TraceCheckUtils]: 50: Hoare triple {23295#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} assume i <= n * 4; {23295#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} is VALID [2019-01-31 14:37:24,060 INFO L273 TraceCheckUtils]: 49: Hoare triple {23302#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} assume a[i] != 23;i := i + 4; {23295#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} is VALID [2019-01-31 14:37:24,061 INFO L273 TraceCheckUtils]: 48: Hoare triple {23302#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} assume i <= n * 4; {23302#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} is VALID [2019-01-31 14:37:24,062 INFO L273 TraceCheckUtils]: 47: Hoare triple {23309#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} assume a[i] != 23;i := i + 4; {23302#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} is VALID [2019-01-31 14:37:24,062 INFO L273 TraceCheckUtils]: 46: Hoare triple {23309#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} assume i <= n * 4; {23309#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} is VALID [2019-01-31 14:37:24,063 INFO L273 TraceCheckUtils]: 45: Hoare triple {23316#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} assume a[i] != 23;i := i + 4; {23309#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} is VALID [2019-01-31 14:37:24,064 INFO L273 TraceCheckUtils]: 44: Hoare triple {23316#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} assume i <= n * 4; {23316#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} is VALID [2019-01-31 14:37:24,065 INFO L273 TraceCheckUtils]: 43: Hoare triple {23323#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} assume a[i] != 23;i := i + 4; {23316#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} is VALID [2019-01-31 14:37:24,066 INFO L273 TraceCheckUtils]: 42: Hoare triple {23323#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} assume i <= n * 4; {23323#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} is VALID [2019-01-31 14:37:24,067 INFO L273 TraceCheckUtils]: 41: Hoare triple {23330#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {23323#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} is VALID [2019-01-31 14:37:24,067 INFO L273 TraceCheckUtils]: 40: Hoare triple {23330#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} assume i <= n * 4; {23330#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} is VALID [2019-01-31 14:37:24,068 INFO L273 TraceCheckUtils]: 39: Hoare triple {23337#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {23330#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} is VALID [2019-01-31 14:37:24,069 INFO L273 TraceCheckUtils]: 38: Hoare triple {23337#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} assume i <= n * 4; {23337#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} is VALID [2019-01-31 14:37:24,070 INFO L273 TraceCheckUtils]: 37: Hoare triple {23344#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {23337#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} is VALID [2019-01-31 14:37:24,070 INFO L273 TraceCheckUtils]: 36: Hoare triple {23344#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} assume i <= n * 4; {23344#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} is VALID [2019-01-31 14:37:24,071 INFO L273 TraceCheckUtils]: 35: Hoare triple {23351#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} assume a[i] != 23;i := i + 4; {23344#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} is VALID [2019-01-31 14:37:24,088 INFO L273 TraceCheckUtils]: 34: Hoare triple {23351#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} assume i <= n * 4; {23351#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} is VALID [2019-01-31 14:37:24,089 INFO L273 TraceCheckUtils]: 33: Hoare triple {23358#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {23351#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} is VALID [2019-01-31 14:37:24,090 INFO L273 TraceCheckUtils]: 32: Hoare triple {23358#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} assume i <= n * 4; {23358#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} is VALID [2019-01-31 14:37:24,090 INFO L273 TraceCheckUtils]: 31: Hoare triple {23365#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} assume a[i] != 23;i := i + 4; {23358#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} is VALID [2019-01-31 14:37:24,091 INFO L273 TraceCheckUtils]: 30: Hoare triple {23365#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} assume i <= n * 4; {23365#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} is VALID [2019-01-31 14:37:24,091 INFO L273 TraceCheckUtils]: 29: Hoare triple {23372#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} assume a[i] != 23;i := i + 4; {23365#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} is VALID [2019-01-31 14:37:24,092 INFO L273 TraceCheckUtils]: 28: Hoare triple {23372#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} assume i <= n * 4; {23372#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} is VALID [2019-01-31 14:37:24,092 INFO L273 TraceCheckUtils]: 27: Hoare triple {23379#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} assume a[i] != 23;i := i + 4; {23372#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} is VALID [2019-01-31 14:37:24,093 INFO L273 TraceCheckUtils]: 26: Hoare triple {23379#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} assume i <= n * 4; {23379#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} is VALID [2019-01-31 14:37:24,094 INFO L273 TraceCheckUtils]: 25: Hoare triple {23386#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {23379#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} is VALID [2019-01-31 14:37:24,095 INFO L273 TraceCheckUtils]: 24: Hoare triple {23386#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} assume i <= n * 4; {23386#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} is VALID [2019-01-31 14:37:24,096 INFO L273 TraceCheckUtils]: 23: Hoare triple {23393#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {23386#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} is VALID [2019-01-31 14:37:24,096 INFO L273 TraceCheckUtils]: 22: Hoare triple {23393#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} assume i <= n * 4; {23393#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} is VALID [2019-01-31 14:37:24,097 INFO L273 TraceCheckUtils]: 21: Hoare triple {23400#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} assume a[i] != 23;i := i + 4; {23393#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} is VALID [2019-01-31 14:37:24,098 INFO L273 TraceCheckUtils]: 20: Hoare triple {23400#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} assume i <= n * 4; {23400#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} is VALID [2019-01-31 14:37:24,099 INFO L273 TraceCheckUtils]: 19: Hoare triple {23407#(or (< (* 4 main_n) (+ main_i 128)) (= (select main_a (+ main_i 128)) 23) (< (+ main_i 131) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {23400#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} is VALID [2019-01-31 14:37:24,099 INFO L273 TraceCheckUtils]: 18: Hoare triple {23407#(or (< (* 4 main_n) (+ main_i 128)) (= (select main_a (+ main_i 128)) 23) (< (+ main_i 131) (* 4 main_n)))} assume i <= n * 4; {23407#(or (< (* 4 main_n) (+ main_i 128)) (= (select main_a (+ main_i 128)) 23) (< (+ main_i 131) (* 4 main_n)))} is VALID [2019-01-31 14:37:24,100 INFO L273 TraceCheckUtils]: 17: Hoare triple {23414#(or (< (* 4 main_n) (+ main_i 132)) (< (+ main_i 135) (* 4 main_n)) (= (select main_a (+ main_i 132)) 23))} assume a[i] != 23;i := i + 4; {23407#(or (< (* 4 main_n) (+ main_i 128)) (= (select main_a (+ main_i 128)) 23) (< (+ main_i 131) (* 4 main_n)))} is VALID [2019-01-31 14:37:24,101 INFO L273 TraceCheckUtils]: 16: Hoare triple {23414#(or (< (* 4 main_n) (+ main_i 132)) (< (+ main_i 135) (* 4 main_n)) (= (select main_a (+ main_i 132)) 23))} assume i <= n * 4; {23414#(or (< (* 4 main_n) (+ main_i 132)) (< (+ main_i 135) (* 4 main_n)) (= (select main_a (+ main_i 132)) 23))} is VALID [2019-01-31 14:37:24,102 INFO L273 TraceCheckUtils]: 15: Hoare triple {23421#(or (< (+ main_i 139) (* 4 main_n)) (= (select main_a (+ main_i 136)) 23) (< (* 4 main_n) (+ main_i 136)))} assume a[i] != 23;i := i + 4; {23414#(or (< (* 4 main_n) (+ main_i 132)) (< (+ main_i 135) (* 4 main_n)) (= (select main_a (+ main_i 132)) 23))} is VALID [2019-01-31 14:37:24,102 INFO L273 TraceCheckUtils]: 14: Hoare triple {23421#(or (< (+ main_i 139) (* 4 main_n)) (= (select main_a (+ main_i 136)) 23) (< (* 4 main_n) (+ main_i 136)))} assume i <= n * 4; {23421#(or (< (+ main_i 139) (* 4 main_n)) (= (select main_a (+ main_i 136)) 23) (< (* 4 main_n) (+ main_i 136)))} is VALID [2019-01-31 14:37:24,103 INFO L273 TraceCheckUtils]: 13: Hoare triple {23428#(or (< (* 4 main_n) (+ main_i 140)) (< (+ main_i 143) (* 4 main_n)) (= (select main_a (+ main_i 140)) 23))} assume a[i] != 23;i := i + 4; {23421#(or (< (+ main_i 139) (* 4 main_n)) (= (select main_a (+ main_i 136)) 23) (< (* 4 main_n) (+ main_i 136)))} is VALID [2019-01-31 14:37:24,104 INFO L273 TraceCheckUtils]: 12: Hoare triple {23428#(or (< (* 4 main_n) (+ main_i 140)) (< (+ main_i 143) (* 4 main_n)) (= (select main_a (+ main_i 140)) 23))} assume i <= n * 4; {23428#(or (< (* 4 main_n) (+ main_i 140)) (< (+ main_i 143) (* 4 main_n)) (= (select main_a (+ main_i 140)) 23))} is VALID [2019-01-31 14:37:24,105 INFO L273 TraceCheckUtils]: 11: Hoare triple {23435#(or (= (select main_a (+ main_i 144)) 23) (< (+ main_i 147) (* 4 main_n)) (< (* 4 main_n) (+ main_i 144)))} assume a[i] != 23;i := i + 4; {23428#(or (< (* 4 main_n) (+ main_i 140)) (< (+ main_i 143) (* 4 main_n)) (= (select main_a (+ main_i 140)) 23))} is VALID [2019-01-31 14:37:24,106 INFO L273 TraceCheckUtils]: 10: Hoare triple {23435#(or (= (select main_a (+ main_i 144)) 23) (< (+ main_i 147) (* 4 main_n)) (< (* 4 main_n) (+ main_i 144)))} assume i <= n * 4; {23435#(or (= (select main_a (+ main_i 144)) 23) (< (+ main_i 147) (* 4 main_n)) (< (* 4 main_n) (+ main_i 144)))} is VALID [2019-01-31 14:37:24,107 INFO L273 TraceCheckUtils]: 9: Hoare triple {23442#(or (< (+ main_i 151) (* 4 main_n)) (< (* 4 main_n) (+ main_i 148)) (= (select main_a (+ main_i 148)) 23))} assume a[i] != 23;i := i + 4; {23435#(or (= (select main_a (+ main_i 144)) 23) (< (+ main_i 147) (* 4 main_n)) (< (* 4 main_n) (+ main_i 144)))} is VALID [2019-01-31 14:37:24,107 INFO L273 TraceCheckUtils]: 8: Hoare triple {23442#(or (< (+ main_i 151) (* 4 main_n)) (< (* 4 main_n) (+ main_i 148)) (= (select main_a (+ main_i 148)) 23))} assume i <= n * 4; {23442#(or (< (+ main_i 151) (* 4 main_n)) (< (* 4 main_n) (+ main_i 148)) (= (select main_a (+ main_i 148)) 23))} is VALID [2019-01-31 14:37:24,108 INFO L273 TraceCheckUtils]: 7: Hoare triple {23449#(or (= 23 (select main_a (+ main_i 152))) (< (+ main_i 155) (* 4 main_n)) (< (* 4 main_n) (+ main_i 152)))} assume a[i] != 23;i := i + 4; {23442#(or (< (+ main_i 151) (* 4 main_n)) (< (* 4 main_n) (+ main_i 148)) (= (select main_a (+ main_i 148)) 23))} is VALID [2019-01-31 14:37:24,109 INFO L273 TraceCheckUtils]: 6: Hoare triple {23449#(or (= 23 (select main_a (+ main_i 152))) (< (+ main_i 155) (* 4 main_n)) (< (* 4 main_n) (+ main_i 152)))} assume i <= n * 4; {23449#(or (= 23 (select main_a (+ main_i 152))) (< (+ main_i 155) (* 4 main_n)) (< (* 4 main_n) (+ main_i 152)))} is VALID [2019-01-31 14:37:24,110 INFO L273 TraceCheckUtils]: 5: Hoare triple {23456#(or (< (+ main_i 159) (* 4 main_n)) (= (select main_a (+ main_i 156)) 23) (< (* 4 main_n) (+ main_i 156)))} assume a[i] != 23;i := i + 4; {23449#(or (= 23 (select main_a (+ main_i 152))) (< (+ main_i 155) (* 4 main_n)) (< (* 4 main_n) (+ main_i 152)))} is VALID [2019-01-31 14:37:24,110 INFO L273 TraceCheckUtils]: 4: Hoare triple {23456#(or (< (+ main_i 159) (* 4 main_n)) (= (select main_a (+ main_i 156)) 23) (< (* 4 main_n) (+ main_i 156)))} assume i <= n * 4; {23456#(or (< (+ main_i 159) (* 4 main_n)) (= (select main_a (+ main_i 156)) 23) (< (* 4 main_n) (+ main_i 156)))} is VALID [2019-01-31 14:37:24,111 INFO L273 TraceCheckUtils]: 3: Hoare triple {23463#(or (< (+ main_i 163) (* 4 main_n)) (= (select main_a (+ main_i 160)) 23) (< (* 4 main_n) (+ main_i 160)))} assume a[i] != 23;i := i + 4; {23456#(or (< (+ main_i 159) (* 4 main_n)) (= (select main_a (+ main_i 156)) 23) (< (* 4 main_n) (+ main_i 156)))} is VALID [2019-01-31 14:37:24,112 INFO L273 TraceCheckUtils]: 2: Hoare triple {23463#(or (< (+ main_i 163) (* 4 main_n)) (= (select main_a (+ main_i 160)) 23) (< (* 4 main_n) (+ main_i 160)))} assume i <= n * 4; {23463#(or (< (+ main_i 163) (* 4 main_n)) (= (select main_a (+ main_i 160)) 23) (< (* 4 main_n) (+ main_i 160)))} is VALID [2019-01-31 14:37:24,113 INFO L273 TraceCheckUtils]: 1: Hoare triple {23470#(or (< (* 4 main_n) (+ main_i 164)) (< (+ main_i 167) (* 4 main_n)) (= (select main_a (+ main_i 164)) 23))} assume a[i] != 23;i := i + 4; {23463#(or (< (+ main_i 163) (* 4 main_n)) (= (select main_a (+ main_i 160)) 23) (< (* 4 main_n) (+ main_i 160)))} is VALID [2019-01-31 14:37:24,114 INFO L273 TraceCheckUtils]: 0: Hoare triple {22834#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {23470#(or (< (* 4 main_n) (+ main_i 164)) (< (+ main_i 167) (* 4 main_n)) (= (select main_a (+ main_i 164)) 23))} is VALID [2019-01-31 14:37:24,141 INFO L134 CoverageAnalysis]: Checked inductivity of 1722 backedges. 0 proven. 1722 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-31 14:37:24,159 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-01-31 14:37:24,160 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [44, 44, 44] total 131 [2019-01-31 14:37:24,160 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-01-31 14:37:24,160 INFO L78 Accepts]: Start accepts. Automaton has 89 states. Word has length 85 [2019-01-31 14:37:24,160 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-01-31 14:37:24,160 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 89 states. [2019-01-31 14:37:24,415 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 169 edges. 169 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-01-31 14:37:24,415 INFO L459 AbstractCegarLoop]: Interpolant automaton has 89 states [2019-01-31 14:37:24,415 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 89 interpolants. [2019-01-31 14:37:24,416 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2164, Invalid=15392, Unknown=0, NotChecked=0, Total=17556 [2019-01-31 14:37:24,416 INFO L87 Difference]: Start difference. First operand 86 states and 86 transitions. Second operand 89 states. [2019-01-31 14:37:36,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 14:37:36,795 INFO L93 Difference]: Finished difference Result 90 states and 90 transitions. [2019-01-31 14:37:36,795 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2019-01-31 14:37:36,795 INFO L78 Accepts]: Start accepts. Automaton has 89 states. Word has length 85 [2019-01-31 14:37:36,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-31 14:37:36,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 89 states. [2019-01-31 14:37:36,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 90 transitions. [2019-01-31 14:37:36,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 89 states. [2019-01-31 14:37:36,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 90 transitions. [2019-01-31 14:37:36,798 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 46 states and 90 transitions. [2019-01-31 14:37:36,912 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 90 edges. 90 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-01-31 14:37:36,914 INFO L225 Difference]: With dead ends: 90 [2019-01-31 14:37:36,914 INFO L226 Difference]: Without dead ends: 89 [2019-01-31 14:37:36,915 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 212 GetRequests, 80 SyntacticMatches, 1 SemanticMatches, 131 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3956 ImplicationChecksByTransitivity, 9.8s TimeCoverageRelationStatistics Valid=2164, Invalid=15392, Unknown=0, NotChecked=0, Total=17556 [2019-01-31 14:37:36,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2019-01-31 14:37:36,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 88. [2019-01-31 14:37:36,996 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-01-31 14:37:36,996 INFO L82 GeneralOperation]: Start isEquivalent. First operand 89 states. Second operand 88 states. [2019-01-31 14:37:36,997 INFO L74 IsIncluded]: Start isIncluded. First operand 89 states. Second operand 88 states. [2019-01-31 14:37:36,997 INFO L87 Difference]: Start difference. First operand 89 states. Second operand 88 states. [2019-01-31 14:37:36,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 14:37:36,998 INFO L93 Difference]: Finished difference Result 89 states and 89 transitions. [2019-01-31 14:37:36,998 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 89 transitions. [2019-01-31 14:37:36,999 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-31 14:37:36,999 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-01-31 14:37:36,999 INFO L74 IsIncluded]: Start isIncluded. First operand 88 states. Second operand 89 states. [2019-01-31 14:37:36,999 INFO L87 Difference]: Start difference. First operand 88 states. Second operand 89 states. [2019-01-31 14:37:37,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 14:37:37,001 INFO L93 Difference]: Finished difference Result 89 states and 89 transitions. [2019-01-31 14:37:37,001 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 89 transitions. [2019-01-31 14:37:37,001 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-31 14:37:37,001 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-01-31 14:37:37,001 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-01-31 14:37:37,001 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-01-31 14:37:37,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 88 states. [2019-01-31 14:37:37,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 88 transitions. [2019-01-31 14:37:37,002 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 88 transitions. Word has length 85 [2019-01-31 14:37:37,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-31 14:37:37,003 INFO L480 AbstractCegarLoop]: Abstraction has 88 states and 88 transitions. [2019-01-31 14:37:37,003 INFO L481 AbstractCegarLoop]: Interpolant automaton has 89 states. [2019-01-31 14:37:37,003 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 88 transitions. [2019-01-31 14:37:37,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2019-01-31 14:37:37,003 INFO L394 BasicCegarLoop]: Found error trace [2019-01-31 14:37:37,003 INFO L402 BasicCegarLoop]: trace histogram [43, 42, 1, 1] [2019-01-31 14:37:37,003 INFO L423 AbstractCegarLoop]: === Iteration 43 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-01-31 14:37:37,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-31 14:37:37,004 INFO L82 PathProgramCache]: Analyzing trace with hash -335716044, now seen corresponding path program 42 times [2019-01-31 14:37:37,004 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-01-31 14:37:37,004 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-31 14:37:37,004 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-01-31 14:37:37,005 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-31 14:37:37,005 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-01-31 14:37:37,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-31 14:37:39,342 INFO L273 TraceCheckUtils]: 0: Hoare triple {23916#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {23918#(and (or (<= 0 main_i) (< 42 main_n)) (or (<= main_n 42) (<= main_i 0)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:39,343 INFO L273 TraceCheckUtils]: 1: Hoare triple {23918#(and (or (<= 0 main_i) (< 42 main_n)) (or (<= main_n 42) (<= main_i 0)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {23919#(and (or (<= main_n 42) (<= main_i 4)) (or (<= 4 main_i) (< 42 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:39,344 INFO L273 TraceCheckUtils]: 2: Hoare triple {23919#(and (or (<= main_n 42) (<= main_i 4)) (or (<= 4 main_i) (< 42 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {23919#(and (or (<= main_n 42) (<= main_i 4)) (or (<= 4 main_i) (< 42 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:39,345 INFO L273 TraceCheckUtils]: 3: Hoare triple {23919#(and (or (<= main_n 42) (<= main_i 4)) (or (<= 4 main_i) (< 42 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {23920#(and (or (<= 8 main_i) (< 42 main_n)) (or (<= main_n 42) (<= main_i 8)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:39,346 INFO L273 TraceCheckUtils]: 4: Hoare triple {23920#(and (or (<= 8 main_i) (< 42 main_n)) (or (<= main_n 42) (<= main_i 8)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {23920#(and (or (<= 8 main_i) (< 42 main_n)) (or (<= main_n 42) (<= main_i 8)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:39,347 INFO L273 TraceCheckUtils]: 5: Hoare triple {23920#(and (or (<= 8 main_i) (< 42 main_n)) (or (<= main_n 42) (<= main_i 8)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {23921#(and (or (<= 12 main_i) (< 42 main_n)) (or (<= main_n 42) (<= main_i 12)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:39,348 INFO L273 TraceCheckUtils]: 6: Hoare triple {23921#(and (or (<= 12 main_i) (< 42 main_n)) (or (<= main_n 42) (<= main_i 12)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {23921#(and (or (<= 12 main_i) (< 42 main_n)) (or (<= main_n 42) (<= main_i 12)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:39,349 INFO L273 TraceCheckUtils]: 7: Hoare triple {23921#(and (or (<= 12 main_i) (< 42 main_n)) (or (<= main_n 42) (<= main_i 12)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {23922#(and (or (<= main_n 42) (<= main_i 16)) (= 23 (select main_a (* 4 main_n))) (or (<= 16 main_i) (< 42 main_n)))} is VALID [2019-01-31 14:37:39,350 INFO L273 TraceCheckUtils]: 8: Hoare triple {23922#(and (or (<= main_n 42) (<= main_i 16)) (= 23 (select main_a (* 4 main_n))) (or (<= 16 main_i) (< 42 main_n)))} assume i <= n * 4; {23922#(and (or (<= main_n 42) (<= main_i 16)) (= 23 (select main_a (* 4 main_n))) (or (<= 16 main_i) (< 42 main_n)))} is VALID [2019-01-31 14:37:39,351 INFO L273 TraceCheckUtils]: 9: Hoare triple {23922#(and (or (<= main_n 42) (<= main_i 16)) (= 23 (select main_a (* 4 main_n))) (or (<= 16 main_i) (< 42 main_n)))} assume a[i] != 23;i := i + 4; {23923#(and (or (<= main_n 42) (<= main_i 20)) (or (<= 20 main_i) (< 42 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:39,352 INFO L273 TraceCheckUtils]: 10: Hoare triple {23923#(and (or (<= main_n 42) (<= main_i 20)) (or (<= 20 main_i) (< 42 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {23923#(and (or (<= main_n 42) (<= main_i 20)) (or (<= 20 main_i) (< 42 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:39,353 INFO L273 TraceCheckUtils]: 11: Hoare triple {23923#(and (or (<= main_n 42) (<= main_i 20)) (or (<= 20 main_i) (< 42 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {23924#(and (or (<= 24 main_i) (< 42 main_n)) (or (<= main_n 42) (<= main_i 24)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:39,353 INFO L273 TraceCheckUtils]: 12: Hoare triple {23924#(and (or (<= 24 main_i) (< 42 main_n)) (or (<= main_n 42) (<= main_i 24)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {23924#(and (or (<= 24 main_i) (< 42 main_n)) (or (<= main_n 42) (<= main_i 24)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:39,354 INFO L273 TraceCheckUtils]: 13: Hoare triple {23924#(and (or (<= 24 main_i) (< 42 main_n)) (or (<= main_n 42) (<= main_i 24)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {23925#(and (or (<= main_n 42) (<= main_i 28)) (or (<= 28 main_i) (< 42 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:39,355 INFO L273 TraceCheckUtils]: 14: Hoare triple {23925#(and (or (<= main_n 42) (<= main_i 28)) (or (<= 28 main_i) (< 42 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {23925#(and (or (<= main_n 42) (<= main_i 28)) (or (<= 28 main_i) (< 42 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:39,356 INFO L273 TraceCheckUtils]: 15: Hoare triple {23925#(and (or (<= main_n 42) (<= main_i 28)) (or (<= 28 main_i) (< 42 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {23926#(and (or (<= main_i 32) (<= main_n 42)) (= 23 (select main_a (* 4 main_n))) (or (<= 32 main_i) (< 42 main_n)))} is VALID [2019-01-31 14:37:39,357 INFO L273 TraceCheckUtils]: 16: Hoare triple {23926#(and (or (<= main_i 32) (<= main_n 42)) (= 23 (select main_a (* 4 main_n))) (or (<= 32 main_i) (< 42 main_n)))} assume i <= n * 4; {23926#(and (or (<= main_i 32) (<= main_n 42)) (= 23 (select main_a (* 4 main_n))) (or (<= 32 main_i) (< 42 main_n)))} is VALID [2019-01-31 14:37:39,358 INFO L273 TraceCheckUtils]: 17: Hoare triple {23926#(and (or (<= main_i 32) (<= main_n 42)) (= 23 (select main_a (* 4 main_n))) (or (<= 32 main_i) (< 42 main_n)))} assume a[i] != 23;i := i + 4; {23927#(and (or (< 42 main_n) (<= 36 main_i)) (or (<= main_i 36) (<= main_n 42)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:39,359 INFO L273 TraceCheckUtils]: 18: Hoare triple {23927#(and (or (< 42 main_n) (<= 36 main_i)) (or (<= main_i 36) (<= main_n 42)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {23927#(and (or (< 42 main_n) (<= 36 main_i)) (or (<= main_i 36) (<= main_n 42)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:39,360 INFO L273 TraceCheckUtils]: 19: Hoare triple {23927#(and (or (< 42 main_n) (<= 36 main_i)) (or (<= main_i 36) (<= main_n 42)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {23928#(and (or (<= 40 main_i) (< 42 main_n)) (or (<= main_n 42) (<= main_i 40)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:39,360 INFO L273 TraceCheckUtils]: 20: Hoare triple {23928#(and (or (<= 40 main_i) (< 42 main_n)) (or (<= main_n 42) (<= main_i 40)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {23928#(and (or (<= 40 main_i) (< 42 main_n)) (or (<= main_n 42) (<= main_i 40)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:39,362 INFO L273 TraceCheckUtils]: 21: Hoare triple {23928#(and (or (<= 40 main_i) (< 42 main_n)) (or (<= main_n 42) (<= main_i 40)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {23929#(and (or (<= 44 main_i) (< 42 main_n)) (or (<= main_n 42) (<= main_i 44)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:39,362 INFO L273 TraceCheckUtils]: 22: Hoare triple {23929#(and (or (<= 44 main_i) (< 42 main_n)) (or (<= main_n 42) (<= main_i 44)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {23929#(and (or (<= 44 main_i) (< 42 main_n)) (or (<= main_n 42) (<= main_i 44)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:39,363 INFO L273 TraceCheckUtils]: 23: Hoare triple {23929#(and (or (<= 44 main_i) (< 42 main_n)) (or (<= main_n 42) (<= main_i 44)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {23930#(and (or (<= main_n 42) (<= main_i 48)) (or (<= 48 main_i) (< 42 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:39,364 INFO L273 TraceCheckUtils]: 24: Hoare triple {23930#(and (or (<= main_n 42) (<= main_i 48)) (or (<= 48 main_i) (< 42 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {23930#(and (or (<= main_n 42) (<= main_i 48)) (or (<= 48 main_i) (< 42 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:39,365 INFO L273 TraceCheckUtils]: 25: Hoare triple {23930#(and (or (<= main_n 42) (<= main_i 48)) (or (<= 48 main_i) (< 42 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {23931#(and (or (<= main_n 42) (<= main_i 52)) (= 23 (select main_a (* 4 main_n))) (or (<= 52 main_i) (< 42 main_n)))} is VALID [2019-01-31 14:37:39,366 INFO L273 TraceCheckUtils]: 26: Hoare triple {23931#(and (or (<= main_n 42) (<= main_i 52)) (= 23 (select main_a (* 4 main_n))) (or (<= 52 main_i) (< 42 main_n)))} assume i <= n * 4; {23931#(and (or (<= main_n 42) (<= main_i 52)) (= 23 (select main_a (* 4 main_n))) (or (<= 52 main_i) (< 42 main_n)))} is VALID [2019-01-31 14:37:39,367 INFO L273 TraceCheckUtils]: 27: Hoare triple {23931#(and (or (<= main_n 42) (<= main_i 52)) (= 23 (select main_a (* 4 main_n))) (or (<= 52 main_i) (< 42 main_n)))} assume a[i] != 23;i := i + 4; {23932#(and (or (<= main_n 42) (<= main_i 56)) (or (<= 56 main_i) (< 42 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:39,368 INFO L273 TraceCheckUtils]: 28: Hoare triple {23932#(and (or (<= main_n 42) (<= main_i 56)) (or (<= 56 main_i) (< 42 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {23932#(and (or (<= main_n 42) (<= main_i 56)) (or (<= 56 main_i) (< 42 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:39,369 INFO L273 TraceCheckUtils]: 29: Hoare triple {23932#(and (or (<= main_n 42) (<= main_i 56)) (or (<= 56 main_i) (< 42 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {23933#(and (or (<= main_n 42) (<= main_i 60)) (or (<= 60 main_i) (< 42 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:39,370 INFO L273 TraceCheckUtils]: 30: Hoare triple {23933#(and (or (<= main_n 42) (<= main_i 60)) (or (<= 60 main_i) (< 42 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {23933#(and (or (<= main_n 42) (<= main_i 60)) (or (<= 60 main_i) (< 42 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:39,371 INFO L273 TraceCheckUtils]: 31: Hoare triple {23933#(and (or (<= main_n 42) (<= main_i 60)) (or (<= 60 main_i) (< 42 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {23934#(and (or (<= main_n 42) (<= main_i 64)) (or (<= 64 main_i) (< 42 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:39,371 INFO L273 TraceCheckUtils]: 32: Hoare triple {23934#(and (or (<= main_n 42) (<= main_i 64)) (or (<= 64 main_i) (< 42 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {23934#(and (or (<= main_n 42) (<= main_i 64)) (or (<= 64 main_i) (< 42 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:39,372 INFO L273 TraceCheckUtils]: 33: Hoare triple {23934#(and (or (<= main_n 42) (<= main_i 64)) (or (<= 64 main_i) (< 42 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {23935#(and (or (<= main_n 42) (<= main_i 68)) (or (<= 68 main_i) (< 42 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:39,373 INFO L273 TraceCheckUtils]: 34: Hoare triple {23935#(and (or (<= main_n 42) (<= main_i 68)) (or (<= 68 main_i) (< 42 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {23935#(and (or (<= main_n 42) (<= main_i 68)) (or (<= 68 main_i) (< 42 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:39,374 INFO L273 TraceCheckUtils]: 35: Hoare triple {23935#(and (or (<= main_n 42) (<= main_i 68)) (or (<= 68 main_i) (< 42 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {23936#(and (or (<= main_n 42) (<= main_i 72)) (or (<= 72 main_i) (< 42 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:39,375 INFO L273 TraceCheckUtils]: 36: Hoare triple {23936#(and (or (<= main_n 42) (<= main_i 72)) (or (<= 72 main_i) (< 42 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {23936#(and (or (<= main_n 42) (<= main_i 72)) (or (<= 72 main_i) (< 42 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:39,376 INFO L273 TraceCheckUtils]: 37: Hoare triple {23936#(and (or (<= main_n 42) (<= main_i 72)) (or (<= 72 main_i) (< 42 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {23937#(and (or (<= main_i 76) (<= main_n 42)) (or (<= 76 main_i) (< 42 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:39,377 INFO L273 TraceCheckUtils]: 38: Hoare triple {23937#(and (or (<= main_i 76) (<= main_n 42)) (or (<= 76 main_i) (< 42 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {23937#(and (or (<= main_i 76) (<= main_n 42)) (or (<= 76 main_i) (< 42 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:39,378 INFO L273 TraceCheckUtils]: 39: Hoare triple {23937#(and (or (<= main_i 76) (<= main_n 42)) (or (<= 76 main_i) (< 42 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {23938#(and (or (<= 80 main_i) (< 42 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 42) (<= main_i 80)))} is VALID [2019-01-31 14:37:39,378 INFO L273 TraceCheckUtils]: 40: Hoare triple {23938#(and (or (<= 80 main_i) (< 42 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 42) (<= main_i 80)))} assume i <= n * 4; {23938#(and (or (<= 80 main_i) (< 42 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 42) (<= main_i 80)))} is VALID [2019-01-31 14:37:39,379 INFO L273 TraceCheckUtils]: 41: Hoare triple {23938#(and (or (<= 80 main_i) (< 42 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 42) (<= main_i 80)))} assume a[i] != 23;i := i + 4; {23939#(and (or (< 42 main_n) (<= 84 main_i)) (or (<= main_n 42) (<= main_i 84)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:39,380 INFO L273 TraceCheckUtils]: 42: Hoare triple {23939#(and (or (< 42 main_n) (<= 84 main_i)) (or (<= main_n 42) (<= main_i 84)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {23939#(and (or (< 42 main_n) (<= 84 main_i)) (or (<= main_n 42) (<= main_i 84)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:39,381 INFO L273 TraceCheckUtils]: 43: Hoare triple {23939#(and (or (< 42 main_n) (<= 84 main_i)) (or (<= main_n 42) (<= main_i 84)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {23940#(and (or (<= main_i 88) (<= main_n 42)) (or (<= 88 main_i) (< 42 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:39,382 INFO L273 TraceCheckUtils]: 44: Hoare triple {23940#(and (or (<= main_i 88) (<= main_n 42)) (or (<= 88 main_i) (< 42 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {23940#(and (or (<= main_i 88) (<= main_n 42)) (or (<= 88 main_i) (< 42 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:39,383 INFO L273 TraceCheckUtils]: 45: Hoare triple {23940#(and (or (<= main_i 88) (<= main_n 42)) (or (<= 88 main_i) (< 42 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {23941#(and (or (<= 92 main_i) (< 42 main_n)) (or (<= main_i 92) (<= main_n 42)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:39,384 INFO L273 TraceCheckUtils]: 46: Hoare triple {23941#(and (or (<= 92 main_i) (< 42 main_n)) (or (<= main_i 92) (<= main_n 42)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {23941#(and (or (<= 92 main_i) (< 42 main_n)) (or (<= main_i 92) (<= main_n 42)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:39,385 INFO L273 TraceCheckUtils]: 47: Hoare triple {23941#(and (or (<= 92 main_i) (< 42 main_n)) (or (<= main_i 92) (<= main_n 42)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {23942#(and (or (<= 96 main_i) (< 42 main_n)) (or (<= main_i 96) (<= main_n 42)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:39,386 INFO L273 TraceCheckUtils]: 48: Hoare triple {23942#(and (or (<= 96 main_i) (< 42 main_n)) (or (<= main_i 96) (<= main_n 42)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {23942#(and (or (<= 96 main_i) (< 42 main_n)) (or (<= main_i 96) (<= main_n 42)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:39,387 INFO L273 TraceCheckUtils]: 49: Hoare triple {23942#(and (or (<= 96 main_i) (< 42 main_n)) (or (<= main_i 96) (<= main_n 42)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {23943#(and (or (<= main_n 42) (<= main_i 100)) (= 23 (select main_a (* 4 main_n))) (or (<= 100 main_i) (< 42 main_n)))} is VALID [2019-01-31 14:37:39,387 INFO L273 TraceCheckUtils]: 50: Hoare triple {23943#(and (or (<= main_n 42) (<= main_i 100)) (= 23 (select main_a (* 4 main_n))) (or (<= 100 main_i) (< 42 main_n)))} assume i <= n * 4; {23943#(and (or (<= main_n 42) (<= main_i 100)) (= 23 (select main_a (* 4 main_n))) (or (<= 100 main_i) (< 42 main_n)))} is VALID [2019-01-31 14:37:39,389 INFO L273 TraceCheckUtils]: 51: Hoare triple {23943#(and (or (<= main_n 42) (<= main_i 100)) (= 23 (select main_a (* 4 main_n))) (or (<= 100 main_i) (< 42 main_n)))} assume a[i] != 23;i := i + 4; {23944#(and (or (<= main_i 104) (<= main_n 42)) (or (<= 104 main_i) (< 42 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:39,389 INFO L273 TraceCheckUtils]: 52: Hoare triple {23944#(and (or (<= main_i 104) (<= main_n 42)) (or (<= 104 main_i) (< 42 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {23944#(and (or (<= main_i 104) (<= main_n 42)) (or (<= 104 main_i) (< 42 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:39,390 INFO L273 TraceCheckUtils]: 53: Hoare triple {23944#(and (or (<= main_i 104) (<= main_n 42)) (or (<= 104 main_i) (< 42 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {23945#(and (or (<= main_n 42) (<= main_i 108)) (or (<= 108 main_i) (< 42 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:39,391 INFO L273 TraceCheckUtils]: 54: Hoare triple {23945#(and (or (<= main_n 42) (<= main_i 108)) (or (<= 108 main_i) (< 42 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {23945#(and (or (<= main_n 42) (<= main_i 108)) (or (<= 108 main_i) (< 42 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:39,392 INFO L273 TraceCheckUtils]: 55: Hoare triple {23945#(and (or (<= main_n 42) (<= main_i 108)) (or (<= 108 main_i) (< 42 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {23946#(and (or (< 42 main_n) (<= 112 main_i)) (or (<= main_n 42) (<= main_i 112)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:39,393 INFO L273 TraceCheckUtils]: 56: Hoare triple {23946#(and (or (< 42 main_n) (<= 112 main_i)) (or (<= main_n 42) (<= main_i 112)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {23946#(and (or (< 42 main_n) (<= 112 main_i)) (or (<= main_n 42) (<= main_i 112)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:39,394 INFO L273 TraceCheckUtils]: 57: Hoare triple {23946#(and (or (< 42 main_n) (<= 112 main_i)) (or (<= main_n 42) (<= main_i 112)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {23947#(and (or (<= 116 main_i) (< 42 main_n)) (or (<= main_n 42) (<= main_i 116)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:39,395 INFO L273 TraceCheckUtils]: 58: Hoare triple {23947#(and (or (<= 116 main_i) (< 42 main_n)) (or (<= main_n 42) (<= main_i 116)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {23947#(and (or (<= 116 main_i) (< 42 main_n)) (or (<= main_n 42) (<= main_i 116)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:39,396 INFO L273 TraceCheckUtils]: 59: Hoare triple {23947#(and (or (<= 116 main_i) (< 42 main_n)) (or (<= main_n 42) (<= main_i 116)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {23948#(and (or (<= 120 main_i) (< 42 main_n)) (or (<= main_n 42) (<= main_i 120)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:39,396 INFO L273 TraceCheckUtils]: 60: Hoare triple {23948#(and (or (<= 120 main_i) (< 42 main_n)) (or (<= main_n 42) (<= main_i 120)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {23948#(and (or (<= 120 main_i) (< 42 main_n)) (or (<= main_n 42) (<= main_i 120)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:39,397 INFO L273 TraceCheckUtils]: 61: Hoare triple {23948#(and (or (<= 120 main_i) (< 42 main_n)) (or (<= main_n 42) (<= main_i 120)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {23949#(and (or (<= main_n 42) (<= main_i 124)) (or (<= 124 main_i) (< 42 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:39,398 INFO L273 TraceCheckUtils]: 62: Hoare triple {23949#(and (or (<= main_n 42) (<= main_i 124)) (or (<= 124 main_i) (< 42 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {23949#(and (or (<= main_n 42) (<= main_i 124)) (or (<= 124 main_i) (< 42 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:39,399 INFO L273 TraceCheckUtils]: 63: Hoare triple {23949#(and (or (<= main_n 42) (<= main_i 124)) (or (<= 124 main_i) (< 42 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {23950#(and (or (<= main_n 42) (<= main_i 128)) (or (<= 128 main_i) (< 42 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:39,400 INFO L273 TraceCheckUtils]: 64: Hoare triple {23950#(and (or (<= main_n 42) (<= main_i 128)) (or (<= 128 main_i) (< 42 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {23950#(and (or (<= main_n 42) (<= main_i 128)) (or (<= 128 main_i) (< 42 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:39,401 INFO L273 TraceCheckUtils]: 65: Hoare triple {23950#(and (or (<= main_n 42) (<= main_i 128)) (or (<= 128 main_i) (< 42 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {23951#(and (or (<= 132 main_i) (< 42 main_n)) (or (<= main_n 42) (<= main_i 132)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:39,402 INFO L273 TraceCheckUtils]: 66: Hoare triple {23951#(and (or (<= 132 main_i) (< 42 main_n)) (or (<= main_n 42) (<= main_i 132)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {23951#(and (or (<= 132 main_i) (< 42 main_n)) (or (<= main_n 42) (<= main_i 132)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:39,403 INFO L273 TraceCheckUtils]: 67: Hoare triple {23951#(and (or (<= 132 main_i) (< 42 main_n)) (or (<= main_n 42) (<= main_i 132)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {23952#(and (or (<= main_i 136) (<= main_n 42)) (or (<= 136 main_i) (< 42 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:39,404 INFO L273 TraceCheckUtils]: 68: Hoare triple {23952#(and (or (<= main_i 136) (<= main_n 42)) (or (<= 136 main_i) (< 42 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {23952#(and (or (<= main_i 136) (<= main_n 42)) (or (<= 136 main_i) (< 42 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:39,405 INFO L273 TraceCheckUtils]: 69: Hoare triple {23952#(and (or (<= main_i 136) (<= main_n 42)) (or (<= 136 main_i) (< 42 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {23953#(and (or (< 42 main_n) (<= 140 main_i)) (or (<= main_n 42) (<= main_i 140)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:39,406 INFO L273 TraceCheckUtils]: 70: Hoare triple {23953#(and (or (< 42 main_n) (<= 140 main_i)) (or (<= main_n 42) (<= main_i 140)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {23953#(and (or (< 42 main_n) (<= 140 main_i)) (or (<= main_n 42) (<= main_i 140)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:39,407 INFO L273 TraceCheckUtils]: 71: Hoare triple {23953#(and (or (< 42 main_n) (<= 140 main_i)) (or (<= main_n 42) (<= main_i 140)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {23954#(and (or (<= 144 main_i) (< 42 main_n)) (or (<= main_n 42) (<= main_i 144)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:39,407 INFO L273 TraceCheckUtils]: 72: Hoare triple {23954#(and (or (<= 144 main_i) (< 42 main_n)) (or (<= main_n 42) (<= main_i 144)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {23954#(and (or (<= 144 main_i) (< 42 main_n)) (or (<= main_n 42) (<= main_i 144)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:39,408 INFO L273 TraceCheckUtils]: 73: Hoare triple {23954#(and (or (<= 144 main_i) (< 42 main_n)) (or (<= main_n 42) (<= main_i 144)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {23955#(and (or (<= 148 main_i) (< 42 main_n)) (or (<= main_n 42) (<= main_i 148)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:39,409 INFO L273 TraceCheckUtils]: 74: Hoare triple {23955#(and (or (<= 148 main_i) (< 42 main_n)) (or (<= main_n 42) (<= main_i 148)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {23955#(and (or (<= 148 main_i) (< 42 main_n)) (or (<= main_n 42) (<= main_i 148)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:39,410 INFO L273 TraceCheckUtils]: 75: Hoare triple {23955#(and (or (<= 148 main_i) (< 42 main_n)) (or (<= main_n 42) (<= main_i 148)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {23956#(and (or (<= main_n 42) (<= main_i 152)) (or (<= 152 main_i) (< 42 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:39,411 INFO L273 TraceCheckUtils]: 76: Hoare triple {23956#(and (or (<= main_n 42) (<= main_i 152)) (or (<= 152 main_i) (< 42 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {23956#(and (or (<= main_n 42) (<= main_i 152)) (or (<= 152 main_i) (< 42 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:39,412 INFO L273 TraceCheckUtils]: 77: Hoare triple {23956#(and (or (<= main_n 42) (<= main_i 152)) (or (<= 152 main_i) (< 42 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {23957#(and (or (<= main_n 42) (<= main_i 156)) (= 23 (select main_a (* 4 main_n))) (or (<= 156 main_i) (< 42 main_n)))} is VALID [2019-01-31 14:37:39,413 INFO L273 TraceCheckUtils]: 78: Hoare triple {23957#(and (or (<= main_n 42) (<= main_i 156)) (= 23 (select main_a (* 4 main_n))) (or (<= 156 main_i) (< 42 main_n)))} assume i <= n * 4; {23957#(and (or (<= main_n 42) (<= main_i 156)) (= 23 (select main_a (* 4 main_n))) (or (<= 156 main_i) (< 42 main_n)))} is VALID [2019-01-31 14:37:39,414 INFO L273 TraceCheckUtils]: 79: Hoare triple {23957#(and (or (<= main_n 42) (<= main_i 156)) (= 23 (select main_a (* 4 main_n))) (or (<= 156 main_i) (< 42 main_n)))} assume a[i] != 23;i := i + 4; {23958#(and (or (<= main_n 42) (<= main_i 160)) (or (<= 160 main_i) (< 42 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:39,415 INFO L273 TraceCheckUtils]: 80: Hoare triple {23958#(and (or (<= main_n 42) (<= main_i 160)) (or (<= 160 main_i) (< 42 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {23958#(and (or (<= main_n 42) (<= main_i 160)) (or (<= 160 main_i) (< 42 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:39,416 INFO L273 TraceCheckUtils]: 81: Hoare triple {23958#(and (or (<= main_n 42) (<= main_i 160)) (or (<= 160 main_i) (< 42 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {23959#(and (or (<= main_n 42) (<= main_i 164)) (or (<= 164 main_i) (< 42 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:39,416 INFO L273 TraceCheckUtils]: 82: Hoare triple {23959#(and (or (<= main_n 42) (<= main_i 164)) (or (<= 164 main_i) (< 42 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {23959#(and (or (<= main_n 42) (<= main_i 164)) (or (<= 164 main_i) (< 42 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:39,418 INFO L273 TraceCheckUtils]: 83: Hoare triple {23959#(and (or (<= main_n 42) (<= main_i 164)) (or (<= 164 main_i) (< 42 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {23960#(and (or (= (* 4 main_n) main_i) (and (or (<= main_n 42) (<= main_i 168)) (or (<= (* 4 main_n) main_i) (< 42 main_n)))) (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))))} is VALID [2019-01-31 14:37:39,419 INFO L273 TraceCheckUtils]: 84: Hoare triple {23960#(and (or (= (* 4 main_n) main_i) (and (or (<= main_n 42) (<= main_i 168)) (or (<= (* 4 main_n) main_i) (< 42 main_n)))) (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))))} assume i <= n * 4; {23961#(and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (or (= (* 4 main_n) main_i) (and (<= main_i 168) (< 42 main_n))))} is VALID [2019-01-31 14:37:39,420 INFO L273 TraceCheckUtils]: 85: Hoare triple {23961#(and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (or (= (* 4 main_n) main_i) (and (<= main_i 168) (< 42 main_n))))} assume a[i] != 23;i := i + 4; {23962#(and (<= main_i 172) (< 42 main_n))} is VALID [2019-01-31 14:37:39,420 INFO L273 TraceCheckUtils]: 86: Hoare triple {23962#(and (<= main_i 172) (< 42 main_n))} assume !(i <= n * 4); {23917#false} is VALID [2019-01-31 14:37:39,453 INFO L134 CoverageAnalysis]: Checked inductivity of 1806 backedges. 0 proven. 1806 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-31 14:37:39,454 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-31 14:37:39,454 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-01-31 14:37:39,454 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-01-31 14:37:39,454 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-01-31 14:37:39,454 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-31 14:37:39,454 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 14:37:39,463 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2019-01-31 14:37:39,463 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder TERMS_WITH_SMALL_CONSTANTS_FIRST (IT: FPandBP) [2019-01-31 14:37:39,488 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-01-31 14:37:39,489 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-01-31 14:37:39,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-31 14:37:39,503 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-31 14:37:39,541 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 14:37:39,542 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-01-31 14:37:39,545 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-31 14:37:39,545 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2019-01-31 14:37:39,547 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-01-31 14:37:39,548 WARN L398 uantifierElimination]: Input elimination task: ∃ [v_main_a_46]. (and (= (store v_main_a_46 (* 4 main_n) 23) main_a) (= main_i 0)) [2019-01-31 14:37:39,548 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2019-01-31 14:37:42,982 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2019-01-31 14:37:42,984 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-01-31 14:37:42,989 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-31 14:37:42,989 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2019-01-31 14:37:42,992 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-01-31 14:37:42,992 WARN L398 uantifierElimination]: Input elimination task: ∃ [main_a]. (let ((.cse0 (* 4 main_n))) (and (not (= (select main_a 168) 23)) (<= 168 .cse0) (<= main_i 172) (= 23 (select main_a .cse0)))) [2019-01-31 14:37:42,992 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (let ((.cse0 (* 4 main_n))) (and (<= 168 .cse0) (not (= 168 .cse0)) (<= main_i 172))) [2019-01-31 14:37:43,047 INFO L273 TraceCheckUtils]: 0: Hoare triple {23916#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {23966#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:43,048 INFO L273 TraceCheckUtils]: 1: Hoare triple {23966#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {23970#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2019-01-31 14:37:43,048 INFO L273 TraceCheckUtils]: 2: Hoare triple {23970#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume i <= n * 4; {23970#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2019-01-31 14:37:43,049 INFO L273 TraceCheckUtils]: 3: Hoare triple {23970#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume a[i] != 23;i := i + 4; {23977#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:43,049 INFO L273 TraceCheckUtils]: 4: Hoare triple {23977#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {23977#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:43,050 INFO L273 TraceCheckUtils]: 5: Hoare triple {23977#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {23984#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2019-01-31 14:37:43,050 INFO L273 TraceCheckUtils]: 6: Hoare triple {23984#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume i <= n * 4; {23984#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2019-01-31 14:37:43,074 INFO L273 TraceCheckUtils]: 7: Hoare triple {23984#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume a[i] != 23;i := i + 4; {23991#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:43,091 INFO L273 TraceCheckUtils]: 8: Hoare triple {23991#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {23991#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:43,093 INFO L273 TraceCheckUtils]: 9: Hoare triple {23991#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {23998#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:43,093 INFO L273 TraceCheckUtils]: 10: Hoare triple {23998#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {23998#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:43,094 INFO L273 TraceCheckUtils]: 11: Hoare triple {23998#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {24005#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:43,094 INFO L273 TraceCheckUtils]: 12: Hoare triple {24005#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {24005#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:43,095 INFO L273 TraceCheckUtils]: 13: Hoare triple {24005#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {24012#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:43,095 INFO L273 TraceCheckUtils]: 14: Hoare triple {24012#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {24012#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:43,095 INFO L273 TraceCheckUtils]: 15: Hoare triple {24012#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {24019#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:43,096 INFO L273 TraceCheckUtils]: 16: Hoare triple {24019#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {24019#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:43,096 INFO L273 TraceCheckUtils]: 17: Hoare triple {24019#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {24026#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:43,097 INFO L273 TraceCheckUtils]: 18: Hoare triple {24026#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {24026#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:43,097 INFO L273 TraceCheckUtils]: 19: Hoare triple {24026#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {24033#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:43,098 INFO L273 TraceCheckUtils]: 20: Hoare triple {24033#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {24033#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:43,105 INFO L273 TraceCheckUtils]: 21: Hoare triple {24033#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {24040#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:43,105 INFO L273 TraceCheckUtils]: 22: Hoare triple {24040#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {24040#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:43,106 INFO L273 TraceCheckUtils]: 23: Hoare triple {24040#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {24047#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:43,106 INFO L273 TraceCheckUtils]: 24: Hoare triple {24047#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {24047#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:43,107 INFO L273 TraceCheckUtils]: 25: Hoare triple {24047#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {24054#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:43,107 INFO L273 TraceCheckUtils]: 26: Hoare triple {24054#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {24054#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:43,107 INFO L273 TraceCheckUtils]: 27: Hoare triple {24054#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {24061#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:43,108 INFO L273 TraceCheckUtils]: 28: Hoare triple {24061#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {24061#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:43,108 INFO L273 TraceCheckUtils]: 29: Hoare triple {24061#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {24068#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:43,109 INFO L273 TraceCheckUtils]: 30: Hoare triple {24068#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {24068#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:43,109 INFO L273 TraceCheckUtils]: 31: Hoare triple {24068#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {24075#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:43,110 INFO L273 TraceCheckUtils]: 32: Hoare triple {24075#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {24075#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:43,110 INFO L273 TraceCheckUtils]: 33: Hoare triple {24075#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {24082#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:43,111 INFO L273 TraceCheckUtils]: 34: Hoare triple {24082#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {24082#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:43,112 INFO L273 TraceCheckUtils]: 35: Hoare triple {24082#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {24089#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:43,112 INFO L273 TraceCheckUtils]: 36: Hoare triple {24089#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {24089#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:43,113 INFO L273 TraceCheckUtils]: 37: Hoare triple {24089#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {24096#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:43,114 INFO L273 TraceCheckUtils]: 38: Hoare triple {24096#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {24096#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:43,114 INFO L273 TraceCheckUtils]: 39: Hoare triple {24096#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {24103#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} is VALID [2019-01-31 14:37:43,115 INFO L273 TraceCheckUtils]: 40: Hoare triple {24103#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} assume i <= n * 4; {24103#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} is VALID [2019-01-31 14:37:43,116 INFO L273 TraceCheckUtils]: 41: Hoare triple {24103#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} assume a[i] != 23;i := i + 4; {24110#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:43,116 INFO L273 TraceCheckUtils]: 42: Hoare triple {24110#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {24110#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:43,117 INFO L273 TraceCheckUtils]: 43: Hoare triple {24110#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {24117#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:43,118 INFO L273 TraceCheckUtils]: 44: Hoare triple {24117#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {24117#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:43,119 INFO L273 TraceCheckUtils]: 45: Hoare triple {24117#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {24124#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:43,119 INFO L273 TraceCheckUtils]: 46: Hoare triple {24124#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {24124#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:43,120 INFO L273 TraceCheckUtils]: 47: Hoare triple {24124#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {24131#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:43,121 INFO L273 TraceCheckUtils]: 48: Hoare triple {24131#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {24131#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:43,121 INFO L273 TraceCheckUtils]: 49: Hoare triple {24131#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {24138#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:43,122 INFO L273 TraceCheckUtils]: 50: Hoare triple {24138#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {24138#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:43,123 INFO L273 TraceCheckUtils]: 51: Hoare triple {24138#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {24145#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:43,123 INFO L273 TraceCheckUtils]: 52: Hoare triple {24145#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {24145#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:43,124 INFO L273 TraceCheckUtils]: 53: Hoare triple {24145#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {24152#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:43,125 INFO L273 TraceCheckUtils]: 54: Hoare triple {24152#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {24152#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:43,125 INFO L273 TraceCheckUtils]: 55: Hoare triple {24152#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {24159#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:43,126 INFO L273 TraceCheckUtils]: 56: Hoare triple {24159#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {24159#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:43,127 INFO L273 TraceCheckUtils]: 57: Hoare triple {24159#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {24166#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:43,127 INFO L273 TraceCheckUtils]: 58: Hoare triple {24166#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {24166#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:43,128 INFO L273 TraceCheckUtils]: 59: Hoare triple {24166#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {24173#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:43,129 INFO L273 TraceCheckUtils]: 60: Hoare triple {24173#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {24173#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:43,130 INFO L273 TraceCheckUtils]: 61: Hoare triple {24173#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {24180#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:43,130 INFO L273 TraceCheckUtils]: 62: Hoare triple {24180#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {24180#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:43,131 INFO L273 TraceCheckUtils]: 63: Hoare triple {24180#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {24187#(and (= main_i 128) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:43,132 INFO L273 TraceCheckUtils]: 64: Hoare triple {24187#(and (= main_i 128) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {24187#(and (= main_i 128) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:43,133 INFO L273 TraceCheckUtils]: 65: Hoare triple {24187#(and (= main_i 128) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {24194#(and (= main_i 132) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:43,133 INFO L273 TraceCheckUtils]: 66: Hoare triple {24194#(and (= main_i 132) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {24194#(and (= main_i 132) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:43,134 INFO L273 TraceCheckUtils]: 67: Hoare triple {24194#(and (= main_i 132) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {24201#(and (= main_i 136) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:43,135 INFO L273 TraceCheckUtils]: 68: Hoare triple {24201#(and (= main_i 136) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {24201#(and (= main_i 136) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:43,136 INFO L273 TraceCheckUtils]: 69: Hoare triple {24201#(and (= main_i 136) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {24208#(and (= 23 (select main_a (* 4 main_n))) (= main_i 140))} is VALID [2019-01-31 14:37:43,136 INFO L273 TraceCheckUtils]: 70: Hoare triple {24208#(and (= 23 (select main_a (* 4 main_n))) (= main_i 140))} assume i <= n * 4; {24208#(and (= 23 (select main_a (* 4 main_n))) (= main_i 140))} is VALID [2019-01-31 14:37:43,137 INFO L273 TraceCheckUtils]: 71: Hoare triple {24208#(and (= 23 (select main_a (* 4 main_n))) (= main_i 140))} assume a[i] != 23;i := i + 4; {24215#(and (= main_i 144) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:43,138 INFO L273 TraceCheckUtils]: 72: Hoare triple {24215#(and (= main_i 144) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {24215#(and (= main_i 144) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:43,139 INFO L273 TraceCheckUtils]: 73: Hoare triple {24215#(and (= main_i 144) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {24222#(and (= main_i 148) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:43,139 INFO L273 TraceCheckUtils]: 74: Hoare triple {24222#(and (= main_i 148) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {24222#(and (= main_i 148) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:43,140 INFO L273 TraceCheckUtils]: 75: Hoare triple {24222#(and (= main_i 148) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {24229#(and (= main_i 152) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:43,141 INFO L273 TraceCheckUtils]: 76: Hoare triple {24229#(and (= main_i 152) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {24229#(and (= main_i 152) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:43,141 INFO L273 TraceCheckUtils]: 77: Hoare triple {24229#(and (= main_i 152) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {24236#(and (= main_i 156) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:43,142 INFO L273 TraceCheckUtils]: 78: Hoare triple {24236#(and (= main_i 156) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {24236#(and (= main_i 156) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:43,143 INFO L273 TraceCheckUtils]: 79: Hoare triple {24236#(and (= main_i 156) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {24243#(and (= main_i 160) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:43,143 INFO L273 TraceCheckUtils]: 80: Hoare triple {24243#(and (= main_i 160) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {24243#(and (= main_i 160) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:43,144 INFO L273 TraceCheckUtils]: 81: Hoare triple {24243#(and (= main_i 160) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {24250#(and (= 23 (select main_a (* 4 main_n))) (= main_i 164))} is VALID [2019-01-31 14:37:43,145 INFO L273 TraceCheckUtils]: 82: Hoare triple {24250#(and (= 23 (select main_a (* 4 main_n))) (= main_i 164))} assume i <= n * 4; {24250#(and (= 23 (select main_a (* 4 main_n))) (= main_i 164))} is VALID [2019-01-31 14:37:43,146 INFO L273 TraceCheckUtils]: 83: Hoare triple {24250#(and (= 23 (select main_a (* 4 main_n))) (= main_i 164))} assume a[i] != 23;i := i + 4; {24257#(and (= main_i 168) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:43,146 INFO L273 TraceCheckUtils]: 84: Hoare triple {24257#(and (= main_i 168) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {24261#(and (= main_i 168) (<= main_i (* 4 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:37:43,147 INFO L273 TraceCheckUtils]: 85: Hoare triple {24261#(and (= main_i 168) (<= main_i (* 4 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {23962#(and (<= main_i 172) (< 42 main_n))} is VALID [2019-01-31 14:37:43,148 INFO L273 TraceCheckUtils]: 86: Hoare triple {23962#(and (<= main_i 172) (< 42 main_n))} assume !(i <= n * 4); {23917#false} is VALID [2019-01-31 14:37:43,165 INFO L134 CoverageAnalysis]: Checked inductivity of 1806 backedges. 0 proven. 1806 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-31 14:37:43,165 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2019-01-31 14:37:48,842 INFO L273 TraceCheckUtils]: 86: Hoare triple {24268#(<= main_i (* 4 main_n))} assume !(i <= n * 4); {23917#false} is VALID [2019-01-31 14:37:48,843 INFO L273 TraceCheckUtils]: 85: Hoare triple {24272#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} assume a[i] != 23;i := i + 4; {24268#(<= main_i (* 4 main_n))} is VALID [2019-01-31 14:37:48,844 INFO L273 TraceCheckUtils]: 84: Hoare triple {24276#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} assume i <= n * 4; {24272#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} is VALID [2019-01-31 14:37:48,844 INFO L273 TraceCheckUtils]: 83: Hoare triple {24280#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume a[i] != 23;i := i + 4; {24276#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} is VALID [2019-01-31 14:37:48,845 INFO L273 TraceCheckUtils]: 82: Hoare triple {24280#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume i <= n * 4; {24280#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2019-01-31 14:37:48,846 INFO L273 TraceCheckUtils]: 81: Hoare triple {24287#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume a[i] != 23;i := i + 4; {24280#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2019-01-31 14:37:48,846 INFO L273 TraceCheckUtils]: 80: Hoare triple {24287#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume i <= n * 4; {24287#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2019-01-31 14:37:48,847 INFO L273 TraceCheckUtils]: 79: Hoare triple {24294#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume a[i] != 23;i := i + 4; {24287#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2019-01-31 14:37:48,848 INFO L273 TraceCheckUtils]: 78: Hoare triple {24294#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume i <= n * 4; {24294#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2019-01-31 14:37:48,849 INFO L273 TraceCheckUtils]: 77: Hoare triple {24301#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume a[i] != 23;i := i + 4; {24294#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2019-01-31 14:37:48,849 INFO L273 TraceCheckUtils]: 76: Hoare triple {24301#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume i <= n * 4; {24301#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2019-01-31 14:37:48,850 INFO L273 TraceCheckUtils]: 75: Hoare triple {24308#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {24301#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2019-01-31 14:37:48,851 INFO L273 TraceCheckUtils]: 74: Hoare triple {24308#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume i <= n * 4; {24308#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2019-01-31 14:37:48,852 INFO L273 TraceCheckUtils]: 73: Hoare triple {24315#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume a[i] != 23;i := i + 4; {24308#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2019-01-31 14:37:48,852 INFO L273 TraceCheckUtils]: 72: Hoare triple {24315#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume i <= n * 4; {24315#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2019-01-31 14:37:48,853 INFO L273 TraceCheckUtils]: 71: Hoare triple {24322#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {24315#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2019-01-31 14:37:48,854 INFO L273 TraceCheckUtils]: 70: Hoare triple {24322#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume i <= n * 4; {24322#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2019-01-31 14:37:48,855 INFO L273 TraceCheckUtils]: 69: Hoare triple {24329#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {24322#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2019-01-31 14:37:48,856 INFO L273 TraceCheckUtils]: 68: Hoare triple {24329#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume i <= n * 4; {24329#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2019-01-31 14:37:48,857 INFO L273 TraceCheckUtils]: 67: Hoare triple {24336#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {24329#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2019-01-31 14:37:48,857 INFO L273 TraceCheckUtils]: 66: Hoare triple {24336#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume i <= n * 4; {24336#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2019-01-31 14:37:48,858 INFO L273 TraceCheckUtils]: 65: Hoare triple {24343#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} assume a[i] != 23;i := i + 4; {24336#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2019-01-31 14:37:48,859 INFO L273 TraceCheckUtils]: 64: Hoare triple {24343#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} assume i <= n * 4; {24343#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} is VALID [2019-01-31 14:37:48,860 INFO L273 TraceCheckUtils]: 63: Hoare triple {24350#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {24343#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} is VALID [2019-01-31 14:37:48,860 INFO L273 TraceCheckUtils]: 62: Hoare triple {24350#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} assume i <= n * 4; {24350#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} is VALID [2019-01-31 14:37:48,861 INFO L273 TraceCheckUtils]: 61: Hoare triple {24357#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {24350#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} is VALID [2019-01-31 14:37:48,862 INFO L273 TraceCheckUtils]: 60: Hoare triple {24357#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} assume i <= n * 4; {24357#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} is VALID [2019-01-31 14:37:48,863 INFO L273 TraceCheckUtils]: 59: Hoare triple {24364#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} assume a[i] != 23;i := i + 4; {24357#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} is VALID [2019-01-31 14:37:48,863 INFO L273 TraceCheckUtils]: 58: Hoare triple {24364#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} assume i <= n * 4; {24364#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} is VALID [2019-01-31 14:37:48,865 INFO L273 TraceCheckUtils]: 57: Hoare triple {24371#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {24364#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} is VALID [2019-01-31 14:37:48,865 INFO L273 TraceCheckUtils]: 56: Hoare triple {24371#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} assume i <= n * 4; {24371#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} is VALID [2019-01-31 14:37:48,866 INFO L273 TraceCheckUtils]: 55: Hoare triple {24378#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} assume a[i] != 23;i := i + 4; {24371#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} is VALID [2019-01-31 14:37:48,867 INFO L273 TraceCheckUtils]: 54: Hoare triple {24378#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} assume i <= n * 4; {24378#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} is VALID [2019-01-31 14:37:48,868 INFO L273 TraceCheckUtils]: 53: Hoare triple {24385#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} assume a[i] != 23;i := i + 4; {24378#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} is VALID [2019-01-31 14:37:48,868 INFO L273 TraceCheckUtils]: 52: Hoare triple {24385#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} assume i <= n * 4; {24385#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} is VALID [2019-01-31 14:37:48,869 INFO L273 TraceCheckUtils]: 51: Hoare triple {24392#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} assume a[i] != 23;i := i + 4; {24385#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} is VALID [2019-01-31 14:37:48,870 INFO L273 TraceCheckUtils]: 50: Hoare triple {24392#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} assume i <= n * 4; {24392#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} is VALID [2019-01-31 14:37:48,871 INFO L273 TraceCheckUtils]: 49: Hoare triple {24399#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} assume a[i] != 23;i := i + 4; {24392#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} is VALID [2019-01-31 14:37:48,871 INFO L273 TraceCheckUtils]: 48: Hoare triple {24399#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} assume i <= n * 4; {24399#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} is VALID [2019-01-31 14:37:48,872 INFO L273 TraceCheckUtils]: 47: Hoare triple {24406#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} assume a[i] != 23;i := i + 4; {24399#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} is VALID [2019-01-31 14:37:48,873 INFO L273 TraceCheckUtils]: 46: Hoare triple {24406#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} assume i <= n * 4; {24406#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} is VALID [2019-01-31 14:37:48,874 INFO L273 TraceCheckUtils]: 45: Hoare triple {24413#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} assume a[i] != 23;i := i + 4; {24406#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} is VALID [2019-01-31 14:37:48,874 INFO L273 TraceCheckUtils]: 44: Hoare triple {24413#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} assume i <= n * 4; {24413#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} is VALID [2019-01-31 14:37:48,876 INFO L273 TraceCheckUtils]: 43: Hoare triple {24420#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {24413#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} is VALID [2019-01-31 14:37:48,876 INFO L273 TraceCheckUtils]: 42: Hoare triple {24420#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} assume i <= n * 4; {24420#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} is VALID [2019-01-31 14:37:48,877 INFO L273 TraceCheckUtils]: 41: Hoare triple {24427#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {24420#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} is VALID [2019-01-31 14:37:48,878 INFO L273 TraceCheckUtils]: 40: Hoare triple {24427#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} assume i <= n * 4; {24427#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} is VALID [2019-01-31 14:37:48,879 INFO L273 TraceCheckUtils]: 39: Hoare triple {24434#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {24427#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} is VALID [2019-01-31 14:37:48,879 INFO L273 TraceCheckUtils]: 38: Hoare triple {24434#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} assume i <= n * 4; {24434#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} is VALID [2019-01-31 14:37:48,880 INFO L273 TraceCheckUtils]: 37: Hoare triple {24441#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} assume a[i] != 23;i := i + 4; {24434#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} is VALID [2019-01-31 14:37:48,881 INFO L273 TraceCheckUtils]: 36: Hoare triple {24441#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} assume i <= n * 4; {24441#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} is VALID [2019-01-31 14:37:48,882 INFO L273 TraceCheckUtils]: 35: Hoare triple {24448#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {24441#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} is VALID [2019-01-31 14:37:48,882 INFO L273 TraceCheckUtils]: 34: Hoare triple {24448#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} assume i <= n * 4; {24448#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} is VALID [2019-01-31 14:37:48,883 INFO L273 TraceCheckUtils]: 33: Hoare triple {24455#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} assume a[i] != 23;i := i + 4; {24448#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} is VALID [2019-01-31 14:37:48,884 INFO L273 TraceCheckUtils]: 32: Hoare triple {24455#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} assume i <= n * 4; {24455#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} is VALID [2019-01-31 14:37:48,885 INFO L273 TraceCheckUtils]: 31: Hoare triple {24462#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} assume a[i] != 23;i := i + 4; {24455#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} is VALID [2019-01-31 14:37:48,885 INFO L273 TraceCheckUtils]: 30: Hoare triple {24462#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} assume i <= n * 4; {24462#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} is VALID [2019-01-31 14:37:48,886 INFO L273 TraceCheckUtils]: 29: Hoare triple {24469#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} assume a[i] != 23;i := i + 4; {24462#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} is VALID [2019-01-31 14:37:48,887 INFO L273 TraceCheckUtils]: 28: Hoare triple {24469#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} assume i <= n * 4; {24469#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} is VALID [2019-01-31 14:37:48,888 INFO L273 TraceCheckUtils]: 27: Hoare triple {24476#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {24469#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} is VALID [2019-01-31 14:37:48,889 INFO L273 TraceCheckUtils]: 26: Hoare triple {24476#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} assume i <= n * 4; {24476#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} is VALID [2019-01-31 14:37:48,890 INFO L273 TraceCheckUtils]: 25: Hoare triple {24483#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {24476#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} is VALID [2019-01-31 14:37:48,890 INFO L273 TraceCheckUtils]: 24: Hoare triple {24483#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} assume i <= n * 4; {24483#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} is VALID [2019-01-31 14:37:48,891 INFO L273 TraceCheckUtils]: 23: Hoare triple {24490#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} assume a[i] != 23;i := i + 4; {24483#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} is VALID [2019-01-31 14:37:48,892 INFO L273 TraceCheckUtils]: 22: Hoare triple {24490#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} assume i <= n * 4; {24490#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} is VALID [2019-01-31 14:37:48,893 INFO L273 TraceCheckUtils]: 21: Hoare triple {24497#(or (< (* 4 main_n) (+ main_i 128)) (= (select main_a (+ main_i 128)) 23) (< (+ main_i 131) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {24490#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} is VALID [2019-01-31 14:37:48,893 INFO L273 TraceCheckUtils]: 20: Hoare triple {24497#(or (< (* 4 main_n) (+ main_i 128)) (= (select main_a (+ main_i 128)) 23) (< (+ main_i 131) (* 4 main_n)))} assume i <= n * 4; {24497#(or (< (* 4 main_n) (+ main_i 128)) (= (select main_a (+ main_i 128)) 23) (< (+ main_i 131) (* 4 main_n)))} is VALID [2019-01-31 14:37:48,894 INFO L273 TraceCheckUtils]: 19: Hoare triple {24504#(or (< (* 4 main_n) (+ main_i 132)) (< (+ main_i 135) (* 4 main_n)) (= (select main_a (+ main_i 132)) 23))} assume a[i] != 23;i := i + 4; {24497#(or (< (* 4 main_n) (+ main_i 128)) (= (select main_a (+ main_i 128)) 23) (< (+ main_i 131) (* 4 main_n)))} is VALID [2019-01-31 14:37:48,895 INFO L273 TraceCheckUtils]: 18: Hoare triple {24504#(or (< (* 4 main_n) (+ main_i 132)) (< (+ main_i 135) (* 4 main_n)) (= (select main_a (+ main_i 132)) 23))} assume i <= n * 4; {24504#(or (< (* 4 main_n) (+ main_i 132)) (< (+ main_i 135) (* 4 main_n)) (= (select main_a (+ main_i 132)) 23))} is VALID [2019-01-31 14:37:48,896 INFO L273 TraceCheckUtils]: 17: Hoare triple {24511#(or (< (+ main_i 139) (* 4 main_n)) (= (select main_a (+ main_i 136)) 23) (< (* 4 main_n) (+ main_i 136)))} assume a[i] != 23;i := i + 4; {24504#(or (< (* 4 main_n) (+ main_i 132)) (< (+ main_i 135) (* 4 main_n)) (= (select main_a (+ main_i 132)) 23))} is VALID [2019-01-31 14:37:48,896 INFO L273 TraceCheckUtils]: 16: Hoare triple {24511#(or (< (+ main_i 139) (* 4 main_n)) (= (select main_a (+ main_i 136)) 23) (< (* 4 main_n) (+ main_i 136)))} assume i <= n * 4; {24511#(or (< (+ main_i 139) (* 4 main_n)) (= (select main_a (+ main_i 136)) 23) (< (* 4 main_n) (+ main_i 136)))} is VALID [2019-01-31 14:37:48,897 INFO L273 TraceCheckUtils]: 15: Hoare triple {24518#(or (< (* 4 main_n) (+ main_i 140)) (< (+ main_i 143) (* 4 main_n)) (= (select main_a (+ main_i 140)) 23))} assume a[i] != 23;i := i + 4; {24511#(or (< (+ main_i 139) (* 4 main_n)) (= (select main_a (+ main_i 136)) 23) (< (* 4 main_n) (+ main_i 136)))} is VALID [2019-01-31 14:37:48,898 INFO L273 TraceCheckUtils]: 14: Hoare triple {24518#(or (< (* 4 main_n) (+ main_i 140)) (< (+ main_i 143) (* 4 main_n)) (= (select main_a (+ main_i 140)) 23))} assume i <= n * 4; {24518#(or (< (* 4 main_n) (+ main_i 140)) (< (+ main_i 143) (* 4 main_n)) (= (select main_a (+ main_i 140)) 23))} is VALID [2019-01-31 14:37:48,899 INFO L273 TraceCheckUtils]: 13: Hoare triple {24525#(or (= (select main_a (+ main_i 144)) 23) (< (+ main_i 147) (* 4 main_n)) (< (* 4 main_n) (+ main_i 144)))} assume a[i] != 23;i := i + 4; {24518#(or (< (* 4 main_n) (+ main_i 140)) (< (+ main_i 143) (* 4 main_n)) (= (select main_a (+ main_i 140)) 23))} is VALID [2019-01-31 14:37:48,900 INFO L273 TraceCheckUtils]: 12: Hoare triple {24525#(or (= (select main_a (+ main_i 144)) 23) (< (+ main_i 147) (* 4 main_n)) (< (* 4 main_n) (+ main_i 144)))} assume i <= n * 4; {24525#(or (= (select main_a (+ main_i 144)) 23) (< (+ main_i 147) (* 4 main_n)) (< (* 4 main_n) (+ main_i 144)))} is VALID [2019-01-31 14:37:48,901 INFO L273 TraceCheckUtils]: 11: Hoare triple {24532#(or (< (+ main_i 151) (* 4 main_n)) (< (* 4 main_n) (+ main_i 148)) (= (select main_a (+ main_i 148)) 23))} assume a[i] != 23;i := i + 4; {24525#(or (= (select main_a (+ main_i 144)) 23) (< (+ main_i 147) (* 4 main_n)) (< (* 4 main_n) (+ main_i 144)))} is VALID [2019-01-31 14:37:48,901 INFO L273 TraceCheckUtils]: 10: Hoare triple {24532#(or (< (+ main_i 151) (* 4 main_n)) (< (* 4 main_n) (+ main_i 148)) (= (select main_a (+ main_i 148)) 23))} assume i <= n * 4; {24532#(or (< (+ main_i 151) (* 4 main_n)) (< (* 4 main_n) (+ main_i 148)) (= (select main_a (+ main_i 148)) 23))} is VALID [2019-01-31 14:37:48,902 INFO L273 TraceCheckUtils]: 9: Hoare triple {24539#(or (= 23 (select main_a (+ main_i 152))) (< (+ main_i 155) (* 4 main_n)) (< (* 4 main_n) (+ main_i 152)))} assume a[i] != 23;i := i + 4; {24532#(or (< (+ main_i 151) (* 4 main_n)) (< (* 4 main_n) (+ main_i 148)) (= (select main_a (+ main_i 148)) 23))} is VALID [2019-01-31 14:37:48,903 INFO L273 TraceCheckUtils]: 8: Hoare triple {24539#(or (= 23 (select main_a (+ main_i 152))) (< (+ main_i 155) (* 4 main_n)) (< (* 4 main_n) (+ main_i 152)))} assume i <= n * 4; {24539#(or (= 23 (select main_a (+ main_i 152))) (< (+ main_i 155) (* 4 main_n)) (< (* 4 main_n) (+ main_i 152)))} is VALID [2019-01-31 14:37:48,904 INFO L273 TraceCheckUtils]: 7: Hoare triple {24546#(or (< (+ main_i 159) (* 4 main_n)) (= (select main_a (+ main_i 156)) 23) (< (* 4 main_n) (+ main_i 156)))} assume a[i] != 23;i := i + 4; {24539#(or (= 23 (select main_a (+ main_i 152))) (< (+ main_i 155) (* 4 main_n)) (< (* 4 main_n) (+ main_i 152)))} is VALID [2019-01-31 14:37:48,904 INFO L273 TraceCheckUtils]: 6: Hoare triple {24546#(or (< (+ main_i 159) (* 4 main_n)) (= (select main_a (+ main_i 156)) 23) (< (* 4 main_n) (+ main_i 156)))} assume i <= n * 4; {24546#(or (< (+ main_i 159) (* 4 main_n)) (= (select main_a (+ main_i 156)) 23) (< (* 4 main_n) (+ main_i 156)))} is VALID [2019-01-31 14:37:48,905 INFO L273 TraceCheckUtils]: 5: Hoare triple {24553#(or (< (+ main_i 163) (* 4 main_n)) (= (select main_a (+ main_i 160)) 23) (< (* 4 main_n) (+ main_i 160)))} assume a[i] != 23;i := i + 4; {24546#(or (< (+ main_i 159) (* 4 main_n)) (= (select main_a (+ main_i 156)) 23) (< (* 4 main_n) (+ main_i 156)))} is VALID [2019-01-31 14:37:48,906 INFO L273 TraceCheckUtils]: 4: Hoare triple {24553#(or (< (+ main_i 163) (* 4 main_n)) (= (select main_a (+ main_i 160)) 23) (< (* 4 main_n) (+ main_i 160)))} assume i <= n * 4; {24553#(or (< (+ main_i 163) (* 4 main_n)) (= (select main_a (+ main_i 160)) 23) (< (* 4 main_n) (+ main_i 160)))} is VALID [2019-01-31 14:37:48,907 INFO L273 TraceCheckUtils]: 3: Hoare triple {24560#(or (< (* 4 main_n) (+ main_i 164)) (< (+ main_i 167) (* 4 main_n)) (= (select main_a (+ main_i 164)) 23))} assume a[i] != 23;i := i + 4; {24553#(or (< (+ main_i 163) (* 4 main_n)) (= (select main_a (+ main_i 160)) 23) (< (* 4 main_n) (+ main_i 160)))} is VALID [2019-01-31 14:37:48,907 INFO L273 TraceCheckUtils]: 2: Hoare triple {24560#(or (< (* 4 main_n) (+ main_i 164)) (< (+ main_i 167) (* 4 main_n)) (= (select main_a (+ main_i 164)) 23))} assume i <= n * 4; {24560#(or (< (* 4 main_n) (+ main_i 164)) (< (+ main_i 167) (* 4 main_n)) (= (select main_a (+ main_i 164)) 23))} is VALID [2019-01-31 14:37:48,908 INFO L273 TraceCheckUtils]: 1: Hoare triple {24567#(or (= (select main_a (+ main_i 168)) 23) (< (* 4 main_n) (+ main_i 168)) (< (+ main_i 171) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {24560#(or (< (* 4 main_n) (+ main_i 164)) (< (+ main_i 167) (* 4 main_n)) (= (select main_a (+ main_i 164)) 23))} is VALID [2019-01-31 14:37:48,909 INFO L273 TraceCheckUtils]: 0: Hoare triple {23916#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {24567#(or (= (select main_a (+ main_i 168)) 23) (< (* 4 main_n) (+ main_i 168)) (< (+ main_i 171) (* 4 main_n)))} is VALID [2019-01-31 14:37:48,938 INFO L134 CoverageAnalysis]: Checked inductivity of 1806 backedges. 0 proven. 1806 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-31 14:37:48,958 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-01-31 14:37:48,959 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [45, 45, 45] total 134 [2019-01-31 14:37:48,959 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-01-31 14:37:48,959 INFO L78 Accepts]: Start accepts. Automaton has 91 states. Word has length 87 [2019-01-31 14:37:48,959 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-01-31 14:37:48,960 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 91 states. [2019-01-31 14:37:49,174 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 173 edges. 173 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-01-31 14:37:49,174 INFO L459 AbstractCegarLoop]: Interpolant automaton has 91 states [2019-01-31 14:37:49,174 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 91 interpolants. [2019-01-31 14:37:49,175 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2258, Invalid=16102, Unknown=0, NotChecked=0, Total=18360 [2019-01-31 14:37:49,175 INFO L87 Difference]: Start difference. First operand 88 states and 88 transitions. Second operand 91 states. [2019-01-31 14:38:01,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 14:38:01,640 INFO L93 Difference]: Finished difference Result 92 states and 92 transitions. [2019-01-31 14:38:01,640 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2019-01-31 14:38:01,640 INFO L78 Accepts]: Start accepts. Automaton has 91 states. Word has length 87 [2019-01-31 14:38:01,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-31 14:38:01,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 91 states. [2019-01-31 14:38:01,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 92 transitions. [2019-01-31 14:38:01,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 91 states. [2019-01-31 14:38:01,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 92 transitions. [2019-01-31 14:38:01,643 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 47 states and 92 transitions. [2019-01-31 14:38:01,745 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 14:38:01,747 INFO L225 Difference]: With dead ends: 92 [2019-01-31 14:38:01,747 INFO L226 Difference]: Without dead ends: 91 [2019-01-31 14:38:01,748 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 217 GetRequests, 82 SyntacticMatches, 1 SemanticMatches, 134 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4136 ImplicationChecksByTransitivity, 10.6s TimeCoverageRelationStatistics Valid=2258, Invalid=16102, Unknown=0, NotChecked=0, Total=18360 [2019-01-31 14:38:01,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2019-01-31 14:38:01,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 90. [2019-01-31 14:38:01,830 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-01-31 14:38:01,830 INFO L82 GeneralOperation]: Start isEquivalent. First operand 91 states. Second operand 90 states. [2019-01-31 14:38:01,830 INFO L74 IsIncluded]: Start isIncluded. First operand 91 states. Second operand 90 states. [2019-01-31 14:38:01,830 INFO L87 Difference]: Start difference. First operand 91 states. Second operand 90 states. [2019-01-31 14:38:01,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 14:38:01,832 INFO L93 Difference]: Finished difference Result 91 states and 91 transitions. [2019-01-31 14:38:01,832 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 91 transitions. [2019-01-31 14:38:01,833 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-31 14:38:01,833 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-01-31 14:38:01,833 INFO L74 IsIncluded]: Start isIncluded. First operand 90 states. Second operand 91 states. [2019-01-31 14:38:01,833 INFO L87 Difference]: Start difference. First operand 90 states. Second operand 91 states. [2019-01-31 14:38:01,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 14:38:01,834 INFO L93 Difference]: Finished difference Result 91 states and 91 transitions. [2019-01-31 14:38:01,834 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 91 transitions. [2019-01-31 14:38:01,835 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-31 14:38:01,835 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-01-31 14:38:01,835 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-01-31 14:38:01,835 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-01-31 14:38:01,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 90 states. [2019-01-31 14:38:01,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 90 transitions. [2019-01-31 14:38:01,836 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 90 transitions. Word has length 87 [2019-01-31 14:38:01,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-31 14:38:01,836 INFO L480 AbstractCegarLoop]: Abstraction has 90 states and 90 transitions. [2019-01-31 14:38:01,836 INFO L481 AbstractCegarLoop]: Interpolant automaton has 91 states. [2019-01-31 14:38:01,836 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 90 transitions. [2019-01-31 14:38:01,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2019-01-31 14:38:01,837 INFO L394 BasicCegarLoop]: Found error trace [2019-01-31 14:38:01,837 INFO L402 BasicCegarLoop]: trace histogram [44, 43, 1, 1] [2019-01-31 14:38:01,837 INFO L423 AbstractCegarLoop]: === Iteration 44 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-01-31 14:38:01,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-31 14:38:01,837 INFO L82 PathProgramCache]: Analyzing trace with hash -500569994, now seen corresponding path program 43 times [2019-01-31 14:38:01,837 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-01-31 14:38:01,841 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-31 14:38:01,841 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-01-31 14:38:01,841 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-31 14:38:01,841 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-01-31 14:38:01,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-31 14:38:02,213 WARN L181 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 18 [2019-01-31 14:38:04,570 INFO L273 TraceCheckUtils]: 0: Hoare triple {25023#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {25025#(and (or (and (<= 0 main_i) (= 23 (select main_a (* 4 main_n)))) (< 43 main_n)) (or (<= main_n 43) (<= main_i 0)))} is VALID [2019-01-31 14:38:04,571 INFO L273 TraceCheckUtils]: 1: Hoare triple {25025#(and (or (and (<= 0 main_i) (= 23 (select main_a (* 4 main_n)))) (< 43 main_n)) (or (<= main_n 43) (<= main_i 0)))} assume a[i] != 23;i := i + 4; {25026#(and (or (<= main_n 43) (<= main_i 4)) (or (< 43 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i))))} is VALID [2019-01-31 14:38:04,572 INFO L273 TraceCheckUtils]: 2: Hoare triple {25026#(and (or (<= main_n 43) (<= main_i 4)) (or (< 43 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i))))} assume i <= n * 4; {25026#(and (or (<= main_n 43) (<= main_i 4)) (or (< 43 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i))))} is VALID [2019-01-31 14:38:04,573 INFO L273 TraceCheckUtils]: 3: Hoare triple {25026#(and (or (<= main_n 43) (<= main_i 4)) (or (< 43 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i))))} assume a[i] != 23;i := i + 4; {25027#(and (or (< 43 main_n) (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 43) (<= main_i 8)))} is VALID [2019-01-31 14:38:04,574 INFO L273 TraceCheckUtils]: 4: Hoare triple {25027#(and (or (< 43 main_n) (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 43) (<= main_i 8)))} assume i <= n * 4; {25027#(and (or (< 43 main_n) (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 43) (<= main_i 8)))} is VALID [2019-01-31 14:38:04,575 INFO L273 TraceCheckUtils]: 5: Hoare triple {25027#(and (or (< 43 main_n) (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 43) (<= main_i 8)))} assume a[i] != 23;i := i + 4; {25028#(and (or (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n)))) (< 43 main_n)) (or (<= main_n 43) (<= main_i 12)))} is VALID [2019-01-31 14:38:04,575 INFO L273 TraceCheckUtils]: 6: Hoare triple {25028#(and (or (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n)))) (< 43 main_n)) (or (<= main_n 43) (<= main_i 12)))} assume i <= n * 4; {25028#(and (or (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n)))) (< 43 main_n)) (or (<= main_n 43) (<= main_i 12)))} is VALID [2019-01-31 14:38:04,576 INFO L273 TraceCheckUtils]: 7: Hoare triple {25028#(and (or (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n)))) (< 43 main_n)) (or (<= main_n 43) (<= main_i 12)))} assume a[i] != 23;i := i + 4; {25029#(and (or (<= main_n 43) (<= main_i 16)) (or (< 43 main_n) (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:38:04,577 INFO L273 TraceCheckUtils]: 8: Hoare triple {25029#(and (or (<= main_n 43) (<= main_i 16)) (or (< 43 main_n) (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {25029#(and (or (<= main_n 43) (<= main_i 16)) (or (< 43 main_n) (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:38:04,578 INFO L273 TraceCheckUtils]: 9: Hoare triple {25029#(and (or (<= main_n 43) (<= main_i 16)) (or (< 43 main_n) (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {25030#(and (or (<= main_n 43) (<= main_i 20)) (or (< 43 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:38:04,579 INFO L273 TraceCheckUtils]: 10: Hoare triple {25030#(and (or (<= main_n 43) (<= main_i 20)) (or (< 43 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {25030#(and (or (<= main_n 43) (<= main_i 20)) (or (< 43 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:38:04,580 INFO L273 TraceCheckUtils]: 11: Hoare triple {25030#(and (or (<= main_n 43) (<= main_i 20)) (or (< 43 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {25031#(and (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 43 main_n)) (or (<= main_n 43) (<= main_i 24)))} is VALID [2019-01-31 14:38:04,581 INFO L273 TraceCheckUtils]: 12: Hoare triple {25031#(and (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 43 main_n)) (or (<= main_n 43) (<= main_i 24)))} assume i <= n * 4; {25031#(and (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 43 main_n)) (or (<= main_n 43) (<= main_i 24)))} is VALID [2019-01-31 14:38:04,582 INFO L273 TraceCheckUtils]: 13: Hoare triple {25031#(and (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 43 main_n)) (or (<= main_n 43) (<= main_i 24)))} assume a[i] != 23;i := i + 4; {25032#(and (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 43 main_n)) (or (<= main_n 43) (<= main_i 28)))} is VALID [2019-01-31 14:38:04,583 INFO L273 TraceCheckUtils]: 14: Hoare triple {25032#(and (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 43 main_n)) (or (<= main_n 43) (<= main_i 28)))} assume i <= n * 4; {25032#(and (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 43 main_n)) (or (<= main_n 43) (<= main_i 28)))} is VALID [2019-01-31 14:38:04,584 INFO L273 TraceCheckUtils]: 15: Hoare triple {25032#(and (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 43 main_n)) (or (<= main_n 43) (<= main_i 28)))} assume a[i] != 23;i := i + 4; {25033#(and (or (< 43 main_n) (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 32) (<= main_n 43)))} is VALID [2019-01-31 14:38:04,584 INFO L273 TraceCheckUtils]: 16: Hoare triple {25033#(and (or (< 43 main_n) (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 32) (<= main_n 43)))} assume i <= n * 4; {25033#(and (or (< 43 main_n) (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 32) (<= main_n 43)))} is VALID [2019-01-31 14:38:04,585 INFO L273 TraceCheckUtils]: 17: Hoare triple {25033#(and (or (< 43 main_n) (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 32) (<= main_n 43)))} assume a[i] != 23;i := i + 4; {25034#(and (or (<= main_n 43) (<= main_i 36)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i)) (< 43 main_n)))} is VALID [2019-01-31 14:38:04,586 INFO L273 TraceCheckUtils]: 18: Hoare triple {25034#(and (or (<= main_n 43) (<= main_i 36)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i)) (< 43 main_n)))} assume i <= n * 4; {25034#(and (or (<= main_n 43) (<= main_i 36)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i)) (< 43 main_n)))} is VALID [2019-01-31 14:38:04,587 INFO L273 TraceCheckUtils]: 19: Hoare triple {25034#(and (or (<= main_n 43) (<= main_i 36)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i)) (< 43 main_n)))} assume a[i] != 23;i := i + 4; {25035#(and (or (< 43 main_n) (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 43) (<= main_i 40)))} is VALID [2019-01-31 14:38:04,588 INFO L273 TraceCheckUtils]: 20: Hoare triple {25035#(and (or (< 43 main_n) (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 43) (<= main_i 40)))} assume i <= n * 4; {25035#(and (or (< 43 main_n) (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 43) (<= main_i 40)))} is VALID [2019-01-31 14:38:04,589 INFO L273 TraceCheckUtils]: 21: Hoare triple {25035#(and (or (< 43 main_n) (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 43) (<= main_i 40)))} assume a[i] != 23;i := i + 4; {25036#(and (or (<= main_n 43) (<= main_i 44)) (or (< 43 main_n) (and (<= 44 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:38:04,590 INFO L273 TraceCheckUtils]: 22: Hoare triple {25036#(and (or (<= main_n 43) (<= main_i 44)) (or (< 43 main_n) (and (<= 44 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {25036#(and (or (<= main_n 43) (<= main_i 44)) (or (< 43 main_n) (and (<= 44 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:38:04,591 INFO L273 TraceCheckUtils]: 23: Hoare triple {25036#(and (or (<= main_n 43) (<= main_i 44)) (or (< 43 main_n) (and (<= 44 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {25037#(and (or (and (<= 48 main_i) (= 23 (select main_a (* 4 main_n)))) (< 43 main_n)) (or (<= main_n 43) (<= main_i 48)))} is VALID [2019-01-31 14:38:04,592 INFO L273 TraceCheckUtils]: 24: Hoare triple {25037#(and (or (and (<= 48 main_i) (= 23 (select main_a (* 4 main_n)))) (< 43 main_n)) (or (<= main_n 43) (<= main_i 48)))} assume i <= n * 4; {25037#(and (or (and (<= 48 main_i) (= 23 (select main_a (* 4 main_n)))) (< 43 main_n)) (or (<= main_n 43) (<= main_i 48)))} is VALID [2019-01-31 14:38:04,593 INFO L273 TraceCheckUtils]: 25: Hoare triple {25037#(and (or (and (<= 48 main_i) (= 23 (select main_a (* 4 main_n)))) (< 43 main_n)) (or (<= main_n 43) (<= main_i 48)))} assume a[i] != 23;i := i + 4; {25038#(and (or (and (<= 52 main_i) (= 23 (select main_a (* 4 main_n)))) (< 43 main_n)) (or (<= main_n 43) (<= main_i 52)))} is VALID [2019-01-31 14:38:04,594 INFO L273 TraceCheckUtils]: 26: Hoare triple {25038#(and (or (and (<= 52 main_i) (= 23 (select main_a (* 4 main_n)))) (< 43 main_n)) (or (<= main_n 43) (<= main_i 52)))} assume i <= n * 4; {25038#(and (or (and (<= 52 main_i) (= 23 (select main_a (* 4 main_n)))) (< 43 main_n)) (or (<= main_n 43) (<= main_i 52)))} is VALID [2019-01-31 14:38:04,595 INFO L273 TraceCheckUtils]: 27: Hoare triple {25038#(and (or (and (<= 52 main_i) (= 23 (select main_a (* 4 main_n)))) (< 43 main_n)) (or (<= main_n 43) (<= main_i 52)))} assume a[i] != 23;i := i + 4; {25039#(and (or (< 43 main_n) (and (<= 56 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 43) (<= main_i 56)))} is VALID [2019-01-31 14:38:04,595 INFO L273 TraceCheckUtils]: 28: Hoare triple {25039#(and (or (< 43 main_n) (and (<= 56 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 43) (<= main_i 56)))} assume i <= n * 4; {25039#(and (or (< 43 main_n) (and (<= 56 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 43) (<= main_i 56)))} is VALID [2019-01-31 14:38:04,597 INFO L273 TraceCheckUtils]: 29: Hoare triple {25039#(and (or (< 43 main_n) (and (<= 56 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 43) (<= main_i 56)))} assume a[i] != 23;i := i + 4; {25040#(and (or (< 43 main_n) (and (<= 60 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 43) (<= main_i 60)))} is VALID [2019-01-31 14:38:04,597 INFO L273 TraceCheckUtils]: 30: Hoare triple {25040#(and (or (< 43 main_n) (and (<= 60 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 43) (<= main_i 60)))} assume i <= n * 4; {25040#(and (or (< 43 main_n) (and (<= 60 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 43) (<= main_i 60)))} is VALID [2019-01-31 14:38:04,598 INFO L273 TraceCheckUtils]: 31: Hoare triple {25040#(and (or (< 43 main_n) (and (<= 60 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 43) (<= main_i 60)))} assume a[i] != 23;i := i + 4; {25041#(and (or (and (<= 64 main_i) (= 23 (select main_a (* 4 main_n)))) (< 43 main_n)) (or (<= main_n 43) (<= main_i 64)))} is VALID [2019-01-31 14:38:04,599 INFO L273 TraceCheckUtils]: 32: Hoare triple {25041#(and (or (and (<= 64 main_i) (= 23 (select main_a (* 4 main_n)))) (< 43 main_n)) (or (<= main_n 43) (<= main_i 64)))} assume i <= n * 4; {25041#(and (or (and (<= 64 main_i) (= 23 (select main_a (* 4 main_n)))) (< 43 main_n)) (or (<= main_n 43) (<= main_i 64)))} is VALID [2019-01-31 14:38:04,600 INFO L273 TraceCheckUtils]: 33: Hoare triple {25041#(and (or (and (<= 64 main_i) (= 23 (select main_a (* 4 main_n)))) (< 43 main_n)) (or (<= main_n 43) (<= main_i 64)))} assume a[i] != 23;i := i + 4; {25042#(and (or (<= main_n 43) (<= main_i 68)) (or (and (<= 68 main_i) (= 23 (select main_a (* 4 main_n)))) (< 43 main_n)))} is VALID [2019-01-31 14:38:04,601 INFO L273 TraceCheckUtils]: 34: Hoare triple {25042#(and (or (<= main_n 43) (<= main_i 68)) (or (and (<= 68 main_i) (= 23 (select main_a (* 4 main_n)))) (< 43 main_n)))} assume i <= n * 4; {25042#(and (or (<= main_n 43) (<= main_i 68)) (or (and (<= 68 main_i) (= 23 (select main_a (* 4 main_n)))) (< 43 main_n)))} is VALID [2019-01-31 14:38:04,602 INFO L273 TraceCheckUtils]: 35: Hoare triple {25042#(and (or (<= main_n 43) (<= main_i 68)) (or (and (<= 68 main_i) (= 23 (select main_a (* 4 main_n)))) (< 43 main_n)))} assume a[i] != 23;i := i + 4; {25043#(and (or (<= main_n 43) (<= main_i 72)) (or (and (<= 72 main_i) (= 23 (select main_a (* 4 main_n)))) (< 43 main_n)))} is VALID [2019-01-31 14:38:04,603 INFO L273 TraceCheckUtils]: 36: Hoare triple {25043#(and (or (<= main_n 43) (<= main_i 72)) (or (and (<= 72 main_i) (= 23 (select main_a (* 4 main_n)))) (< 43 main_n)))} assume i <= n * 4; {25043#(and (or (<= main_n 43) (<= main_i 72)) (or (and (<= 72 main_i) (= 23 (select main_a (* 4 main_n)))) (< 43 main_n)))} is VALID [2019-01-31 14:38:04,604 INFO L273 TraceCheckUtils]: 37: Hoare triple {25043#(and (or (<= main_n 43) (<= main_i 72)) (or (and (<= 72 main_i) (= 23 (select main_a (* 4 main_n)))) (< 43 main_n)))} assume a[i] != 23;i := i + 4; {25044#(and (or (and (<= 76 main_i) (= 23 (select main_a (* 4 main_n)))) (< 43 main_n)) (or (<= main_n 43) (<= main_i 76)))} is VALID [2019-01-31 14:38:04,605 INFO L273 TraceCheckUtils]: 38: Hoare triple {25044#(and (or (and (<= 76 main_i) (= 23 (select main_a (* 4 main_n)))) (< 43 main_n)) (or (<= main_n 43) (<= main_i 76)))} assume i <= n * 4; {25044#(and (or (and (<= 76 main_i) (= 23 (select main_a (* 4 main_n)))) (< 43 main_n)) (or (<= main_n 43) (<= main_i 76)))} is VALID [2019-01-31 14:38:04,606 INFO L273 TraceCheckUtils]: 39: Hoare triple {25044#(and (or (and (<= 76 main_i) (= 23 (select main_a (* 4 main_n)))) (< 43 main_n)) (or (<= main_n 43) (<= main_i 76)))} assume a[i] != 23;i := i + 4; {25045#(and (or (and (<= 80 main_i) (= 23 (select main_a (* 4 main_n)))) (< 43 main_n)) (or (<= main_n 43) (<= main_i 80)))} is VALID [2019-01-31 14:38:04,607 INFO L273 TraceCheckUtils]: 40: Hoare triple {25045#(and (or (and (<= 80 main_i) (= 23 (select main_a (* 4 main_n)))) (< 43 main_n)) (or (<= main_n 43) (<= main_i 80)))} assume i <= n * 4; {25045#(and (or (and (<= 80 main_i) (= 23 (select main_a (* 4 main_n)))) (< 43 main_n)) (or (<= main_n 43) (<= main_i 80)))} is VALID [2019-01-31 14:38:04,608 INFO L273 TraceCheckUtils]: 41: Hoare triple {25045#(and (or (and (<= 80 main_i) (= 23 (select main_a (* 4 main_n)))) (< 43 main_n)) (or (<= main_n 43) (<= main_i 80)))} assume a[i] != 23;i := i + 4; {25046#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 84 main_i)) (< 43 main_n)) (or (<= main_n 43) (<= main_i 84)))} is VALID [2019-01-31 14:38:04,609 INFO L273 TraceCheckUtils]: 42: Hoare triple {25046#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 84 main_i)) (< 43 main_n)) (or (<= main_n 43) (<= main_i 84)))} assume i <= n * 4; {25046#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 84 main_i)) (< 43 main_n)) (or (<= main_n 43) (<= main_i 84)))} is VALID [2019-01-31 14:38:04,610 INFO L273 TraceCheckUtils]: 43: Hoare triple {25046#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 84 main_i)) (< 43 main_n)) (or (<= main_n 43) (<= main_i 84)))} assume a[i] != 23;i := i + 4; {25047#(and (or (< 43 main_n) (and (<= 88 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 43) (<= main_i 88)))} is VALID [2019-01-31 14:38:04,610 INFO L273 TraceCheckUtils]: 44: Hoare triple {25047#(and (or (< 43 main_n) (and (<= 88 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 43) (<= main_i 88)))} assume i <= n * 4; {25047#(and (or (< 43 main_n) (and (<= 88 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 43) (<= main_i 88)))} is VALID [2019-01-31 14:38:04,612 INFO L273 TraceCheckUtils]: 45: Hoare triple {25047#(and (or (< 43 main_n) (and (<= 88 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 43) (<= main_i 88)))} assume a[i] != 23;i := i + 4; {25048#(and (or (<= main_n 43) (<= main_i 92)) (or (< 43 main_n) (and (<= 92 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:38:04,612 INFO L273 TraceCheckUtils]: 46: Hoare triple {25048#(and (or (<= main_n 43) (<= main_i 92)) (or (< 43 main_n) (and (<= 92 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {25048#(and (or (<= main_n 43) (<= main_i 92)) (or (< 43 main_n) (and (<= 92 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:38:04,613 INFO L273 TraceCheckUtils]: 47: Hoare triple {25048#(and (or (<= main_n 43) (<= main_i 92)) (or (< 43 main_n) (and (<= 92 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {25049#(and (or (and (<= 96 main_i) (= 23 (select main_a (* 4 main_n)))) (< 43 main_n)) (or (<= main_i 96) (<= main_n 43)))} is VALID [2019-01-31 14:38:04,614 INFO L273 TraceCheckUtils]: 48: Hoare triple {25049#(and (or (and (<= 96 main_i) (= 23 (select main_a (* 4 main_n)))) (< 43 main_n)) (or (<= main_i 96) (<= main_n 43)))} assume i <= n * 4; {25049#(and (or (and (<= 96 main_i) (= 23 (select main_a (* 4 main_n)))) (< 43 main_n)) (or (<= main_i 96) (<= main_n 43)))} is VALID [2019-01-31 14:38:04,615 INFO L273 TraceCheckUtils]: 49: Hoare triple {25049#(and (or (and (<= 96 main_i) (= 23 (select main_a (* 4 main_n)))) (< 43 main_n)) (or (<= main_i 96) (<= main_n 43)))} assume a[i] != 23;i := i + 4; {25050#(and (or (<= main_n 43) (<= main_i 100)) (or (and (<= 100 main_i) (= 23 (select main_a (* 4 main_n)))) (< 43 main_n)))} is VALID [2019-01-31 14:38:04,616 INFO L273 TraceCheckUtils]: 50: Hoare triple {25050#(and (or (<= main_n 43) (<= main_i 100)) (or (and (<= 100 main_i) (= 23 (select main_a (* 4 main_n)))) (< 43 main_n)))} assume i <= n * 4; {25050#(and (or (<= main_n 43) (<= main_i 100)) (or (and (<= 100 main_i) (= 23 (select main_a (* 4 main_n)))) (< 43 main_n)))} is VALID [2019-01-31 14:38:04,617 INFO L273 TraceCheckUtils]: 51: Hoare triple {25050#(and (or (<= main_n 43) (<= main_i 100)) (or (and (<= 100 main_i) (= 23 (select main_a (* 4 main_n)))) (< 43 main_n)))} assume a[i] != 23;i := i + 4; {25051#(and (or (and (<= 104 main_i) (= 23 (select main_a (* 4 main_n)))) (< 43 main_n)) (or (<= main_i 104) (<= main_n 43)))} is VALID [2019-01-31 14:38:04,618 INFO L273 TraceCheckUtils]: 52: Hoare triple {25051#(and (or (and (<= 104 main_i) (= 23 (select main_a (* 4 main_n)))) (< 43 main_n)) (or (<= main_i 104) (<= main_n 43)))} assume i <= n * 4; {25051#(and (or (and (<= 104 main_i) (= 23 (select main_a (* 4 main_n)))) (< 43 main_n)) (or (<= main_i 104) (<= main_n 43)))} is VALID [2019-01-31 14:38:04,619 INFO L273 TraceCheckUtils]: 53: Hoare triple {25051#(and (or (and (<= 104 main_i) (= 23 (select main_a (* 4 main_n)))) (< 43 main_n)) (or (<= main_i 104) (<= main_n 43)))} assume a[i] != 23;i := i + 4; {25052#(and (or (<= main_n 43) (<= main_i 108)) (or (< 43 main_n) (and (<= 108 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:38:04,619 INFO L273 TraceCheckUtils]: 54: Hoare triple {25052#(and (or (<= main_n 43) (<= main_i 108)) (or (< 43 main_n) (and (<= 108 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {25052#(and (or (<= main_n 43) (<= main_i 108)) (or (< 43 main_n) (and (<= 108 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:38:04,621 INFO L273 TraceCheckUtils]: 55: Hoare triple {25052#(and (or (<= main_n 43) (<= main_i 108)) (or (< 43 main_n) (and (<= 108 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {25053#(and (or (<= main_n 43) (<= main_i 112)) (or (< 43 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 112 main_i))))} is VALID [2019-01-31 14:38:04,621 INFO L273 TraceCheckUtils]: 56: Hoare triple {25053#(and (or (<= main_n 43) (<= main_i 112)) (or (< 43 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 112 main_i))))} assume i <= n * 4; {25053#(and (or (<= main_n 43) (<= main_i 112)) (or (< 43 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 112 main_i))))} is VALID [2019-01-31 14:38:04,622 INFO L273 TraceCheckUtils]: 57: Hoare triple {25053#(and (or (<= main_n 43) (<= main_i 112)) (or (< 43 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 112 main_i))))} assume a[i] != 23;i := i + 4; {25054#(and (or (< 43 main_n) (and (<= 116 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 43) (<= main_i 116)))} is VALID [2019-01-31 14:38:04,623 INFO L273 TraceCheckUtils]: 58: Hoare triple {25054#(and (or (< 43 main_n) (and (<= 116 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 43) (<= main_i 116)))} assume i <= n * 4; {25054#(and (or (< 43 main_n) (and (<= 116 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 43) (<= main_i 116)))} is VALID [2019-01-31 14:38:04,624 INFO L273 TraceCheckUtils]: 59: Hoare triple {25054#(and (or (< 43 main_n) (and (<= 116 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 43) (<= main_i 116)))} assume a[i] != 23;i := i + 4; {25055#(and (or (< 43 main_n) (and (<= 120 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 43) (<= main_i 120)))} is VALID [2019-01-31 14:38:04,625 INFO L273 TraceCheckUtils]: 60: Hoare triple {25055#(and (or (< 43 main_n) (and (<= 120 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 43) (<= main_i 120)))} assume i <= n * 4; {25055#(and (or (< 43 main_n) (and (<= 120 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 43) (<= main_i 120)))} is VALID [2019-01-31 14:38:04,626 INFO L273 TraceCheckUtils]: 61: Hoare triple {25055#(and (or (< 43 main_n) (and (<= 120 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 43) (<= main_i 120)))} assume a[i] != 23;i := i + 4; {25056#(and (or (and (<= 124 main_i) (= 23 (select main_a (* 4 main_n)))) (< 43 main_n)) (or (<= main_n 43) (<= main_i 124)))} is VALID [2019-01-31 14:38:04,627 INFO L273 TraceCheckUtils]: 62: Hoare triple {25056#(and (or (and (<= 124 main_i) (= 23 (select main_a (* 4 main_n)))) (< 43 main_n)) (or (<= main_n 43) (<= main_i 124)))} assume i <= n * 4; {25056#(and (or (and (<= 124 main_i) (= 23 (select main_a (* 4 main_n)))) (< 43 main_n)) (or (<= main_n 43) (<= main_i 124)))} is VALID [2019-01-31 14:38:04,628 INFO L273 TraceCheckUtils]: 63: Hoare triple {25056#(and (or (and (<= 124 main_i) (= 23 (select main_a (* 4 main_n)))) (< 43 main_n)) (or (<= main_n 43) (<= main_i 124)))} assume a[i] != 23;i := i + 4; {25057#(and (or (<= main_n 43) (<= main_i 128)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 128 main_i)) (< 43 main_n)))} is VALID [2019-01-31 14:38:04,628 INFO L273 TraceCheckUtils]: 64: Hoare triple {25057#(and (or (<= main_n 43) (<= main_i 128)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 128 main_i)) (< 43 main_n)))} assume i <= n * 4; {25057#(and (or (<= main_n 43) (<= main_i 128)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 128 main_i)) (< 43 main_n)))} is VALID [2019-01-31 14:38:04,630 INFO L273 TraceCheckUtils]: 65: Hoare triple {25057#(and (or (<= main_n 43) (<= main_i 128)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 128 main_i)) (< 43 main_n)))} assume a[i] != 23;i := i + 4; {25058#(and (or (<= main_n 43) (<= main_i 132)) (or (< 43 main_n) (and (<= 132 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:38:04,630 INFO L273 TraceCheckUtils]: 66: Hoare triple {25058#(and (or (<= main_n 43) (<= main_i 132)) (or (< 43 main_n) (and (<= 132 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {25058#(and (or (<= main_n 43) (<= main_i 132)) (or (< 43 main_n) (and (<= 132 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:38:04,631 INFO L273 TraceCheckUtils]: 67: Hoare triple {25058#(and (or (<= main_n 43) (<= main_i 132)) (or (< 43 main_n) (and (<= 132 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {25059#(and (or (<= main_n 43) (<= main_i 136)) (or (< 43 main_n) (and (<= 136 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:38:04,632 INFO L273 TraceCheckUtils]: 68: Hoare triple {25059#(and (or (<= main_n 43) (<= main_i 136)) (or (< 43 main_n) (and (<= 136 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {25059#(and (or (<= main_n 43) (<= main_i 136)) (or (< 43 main_n) (and (<= 136 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:38:04,633 INFO L273 TraceCheckUtils]: 69: Hoare triple {25059#(and (or (<= main_n 43) (<= main_i 136)) (or (< 43 main_n) (and (<= 136 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {25060#(and (or (< 43 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 140 main_i))) (or (<= main_n 43) (<= main_i 140)))} is VALID [2019-01-31 14:38:04,634 INFO L273 TraceCheckUtils]: 70: Hoare triple {25060#(and (or (< 43 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 140 main_i))) (or (<= main_n 43) (<= main_i 140)))} assume i <= n * 4; {25060#(and (or (< 43 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 140 main_i))) (or (<= main_n 43) (<= main_i 140)))} is VALID [2019-01-31 14:38:04,635 INFO L273 TraceCheckUtils]: 71: Hoare triple {25060#(and (or (< 43 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 140 main_i))) (or (<= main_n 43) (<= main_i 140)))} assume a[i] != 23;i := i + 4; {25061#(and (or (<= main_n 43) (<= main_i 144)) (or (< 43 main_n) (and (<= 144 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:38:04,636 INFO L273 TraceCheckUtils]: 72: Hoare triple {25061#(and (or (<= main_n 43) (<= main_i 144)) (or (< 43 main_n) (and (<= 144 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {25061#(and (or (<= main_n 43) (<= main_i 144)) (or (< 43 main_n) (and (<= 144 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:38:04,637 INFO L273 TraceCheckUtils]: 73: Hoare triple {25061#(and (or (<= main_n 43) (<= main_i 144)) (or (< 43 main_n) (and (<= 144 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {25062#(and (or (<= main_n 43) (<= main_i 148)) (or (< 43 main_n) (and (<= 148 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:38:04,637 INFO L273 TraceCheckUtils]: 74: Hoare triple {25062#(and (or (<= main_n 43) (<= main_i 148)) (or (< 43 main_n) (and (<= 148 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {25062#(and (or (<= main_n 43) (<= main_i 148)) (or (< 43 main_n) (and (<= 148 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:38:04,638 INFO L273 TraceCheckUtils]: 75: Hoare triple {25062#(and (or (<= main_n 43) (<= main_i 148)) (or (< 43 main_n) (and (<= 148 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {25063#(and (or (and (<= 152 main_i) (= 23 (select main_a (* 4 main_n)))) (< 43 main_n)) (or (<= main_n 43) (<= main_i 152)))} is VALID [2019-01-31 14:38:04,639 INFO L273 TraceCheckUtils]: 76: Hoare triple {25063#(and (or (and (<= 152 main_i) (= 23 (select main_a (* 4 main_n)))) (< 43 main_n)) (or (<= main_n 43) (<= main_i 152)))} assume i <= n * 4; {25063#(and (or (and (<= 152 main_i) (= 23 (select main_a (* 4 main_n)))) (< 43 main_n)) (or (<= main_n 43) (<= main_i 152)))} is VALID [2019-01-31 14:38:04,640 INFO L273 TraceCheckUtils]: 77: Hoare triple {25063#(and (or (and (<= 152 main_i) (= 23 (select main_a (* 4 main_n)))) (< 43 main_n)) (or (<= main_n 43) (<= main_i 152)))} assume a[i] != 23;i := i + 4; {25064#(and (or (<= main_n 43) (<= main_i 156)) (or (< 43 main_n) (and (<= 156 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:38:04,641 INFO L273 TraceCheckUtils]: 78: Hoare triple {25064#(and (or (<= main_n 43) (<= main_i 156)) (or (< 43 main_n) (and (<= 156 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {25064#(and (or (<= main_n 43) (<= main_i 156)) (or (< 43 main_n) (and (<= 156 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:38:04,642 INFO L273 TraceCheckUtils]: 79: Hoare triple {25064#(and (or (<= main_n 43) (<= main_i 156)) (or (< 43 main_n) (and (<= 156 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {25065#(and (or (< 43 main_n) (and (<= 160 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 43) (<= main_i 160)))} is VALID [2019-01-31 14:38:04,643 INFO L273 TraceCheckUtils]: 80: Hoare triple {25065#(and (or (< 43 main_n) (and (<= 160 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 43) (<= main_i 160)))} assume i <= n * 4; {25065#(and (or (< 43 main_n) (and (<= 160 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 43) (<= main_i 160)))} is VALID [2019-01-31 14:38:04,644 INFO L273 TraceCheckUtils]: 81: Hoare triple {25065#(and (or (< 43 main_n) (and (<= 160 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 43) (<= main_i 160)))} assume a[i] != 23;i := i + 4; {25066#(and (or (and (<= 164 main_i) (= 23 (select main_a (* 4 main_n)))) (< 43 main_n)) (or (<= main_n 43) (<= main_i 164)))} is VALID [2019-01-31 14:38:04,645 INFO L273 TraceCheckUtils]: 82: Hoare triple {25066#(and (or (and (<= 164 main_i) (= 23 (select main_a (* 4 main_n)))) (< 43 main_n)) (or (<= main_n 43) (<= main_i 164)))} assume i <= n * 4; {25066#(and (or (and (<= 164 main_i) (= 23 (select main_a (* 4 main_n)))) (< 43 main_n)) (or (<= main_n 43) (<= main_i 164)))} is VALID [2019-01-31 14:38:04,646 INFO L273 TraceCheckUtils]: 83: Hoare triple {25066#(and (or (and (<= 164 main_i) (= 23 (select main_a (* 4 main_n)))) (< 43 main_n)) (or (<= main_n 43) (<= main_i 164)))} assume a[i] != 23;i := i + 4; {25067#(and (or (< 43 main_n) (and (<= 168 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 43) (<= main_i 168)))} is VALID [2019-01-31 14:38:04,646 INFO L273 TraceCheckUtils]: 84: Hoare triple {25067#(and (or (< 43 main_n) (and (<= 168 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 43) (<= main_i 168)))} assume i <= n * 4; {25067#(and (or (< 43 main_n) (and (<= 168 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 43) (<= main_i 168)))} is VALID [2019-01-31 14:38:04,648 INFO L273 TraceCheckUtils]: 85: Hoare triple {25067#(and (or (< 43 main_n) (and (<= 168 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 43) (<= main_i 168)))} assume a[i] != 23;i := i + 4; {25068#(and (or (and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (<= (* 4 main_n) main_i)) (< 43 main_n)) (or (<= main_n 43) (<= main_i 172)))} is VALID [2019-01-31 14:38:04,649 INFO L273 TraceCheckUtils]: 86: Hoare triple {25068#(and (or (and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (<= (* 4 main_n) main_i)) (< 43 main_n)) (or (<= main_n 43) (<= main_i 172)))} assume i <= n * 4; {25069#(and (or (< 43 main_n) (and (<= (* 4 main_n) main_i) (<= main_i (* 4 main_n)) (= 23 (select main_a main_i)))) (<= main_i 172))} is VALID [2019-01-31 14:38:04,649 INFO L273 TraceCheckUtils]: 87: Hoare triple {25069#(and (or (< 43 main_n) (and (<= (* 4 main_n) main_i) (<= main_i (* 4 main_n)) (= 23 (select main_a main_i)))) (<= main_i 172))} assume a[i] != 23;i := i + 4; {25070#(and (<= main_i 176) (<= 44 main_n))} is VALID [2019-01-31 14:38:04,650 INFO L273 TraceCheckUtils]: 88: Hoare triple {25070#(and (<= main_i 176) (<= 44 main_n))} assume !(i <= n * 4); {25024#false} is VALID [2019-01-31 14:38:04,690 INFO L134 CoverageAnalysis]: Checked inductivity of 1892 backedges. 0 proven. 1892 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-31 14:38:04,691 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-31 14:38:04,691 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-01-31 14:38:04,691 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-01-31 14:38:04,691 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-01-31 14:38:04,691 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-31 14:38:04,691 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 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 14:38:04,699 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-31 14:38:04,699 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2019-01-31 14:38:04,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-31 14:38:04,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-31 14:38:04,739 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-31 14:38:04,755 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 14:38:04,764 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-01-31 14:38:04,771 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-31 14:38:04,771 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2019-01-31 14:38:04,773 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-01-31 14:38:04,773 WARN L398 uantifierElimination]: Input elimination task: ∃ [v_main_a_47]. (and (= main_i 0) (= (store v_main_a_47 (* 4 main_n) 23) main_a)) [2019-01-31 14:38:04,773 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2019-01-31 14:38:08,170 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2019-01-31 14:38:08,174 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-01-31 14:38:08,179 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-31 14:38:08,180 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2019-01-31 14:38:08,184 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-01-31 14:38:08,185 WARN L398 uantifierElimination]: Input elimination task: ∃ [main_a]. (let ((.cse0 (* 4 main_n))) (and (not (= (select main_a 172) 23)) (<= main_i 176) (<= 172 .cse0) (= 23 (select main_a .cse0)))) [2019-01-31 14:38:08,185 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (let ((.cse0 (* 4 main_n))) (and (<= main_i 176) (<= 172 .cse0) (not (= 172 .cse0)))) [2019-01-31 14:38:08,239 INFO L273 TraceCheckUtils]: 0: Hoare triple {25023#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {25074#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:38:08,240 INFO L273 TraceCheckUtils]: 1: Hoare triple {25074#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {25078#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2019-01-31 14:38:08,240 INFO L273 TraceCheckUtils]: 2: Hoare triple {25078#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume i <= n * 4; {25078#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2019-01-31 14:38:08,241 INFO L273 TraceCheckUtils]: 3: Hoare triple {25078#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume a[i] != 23;i := i + 4; {25085#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:38:08,241 INFO L273 TraceCheckUtils]: 4: Hoare triple {25085#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {25085#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:38:08,242 INFO L273 TraceCheckUtils]: 5: Hoare triple {25085#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {25092#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2019-01-31 14:38:08,242 INFO L273 TraceCheckUtils]: 6: Hoare triple {25092#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume i <= n * 4; {25092#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2019-01-31 14:38:08,243 INFO L273 TraceCheckUtils]: 7: Hoare triple {25092#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume a[i] != 23;i := i + 4; {25099#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:38:08,243 INFO L273 TraceCheckUtils]: 8: Hoare triple {25099#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {25099#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:38:08,244 INFO L273 TraceCheckUtils]: 9: Hoare triple {25099#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {25106#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:38:08,245 INFO L273 TraceCheckUtils]: 10: Hoare triple {25106#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {25106#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:38:08,246 INFO L273 TraceCheckUtils]: 11: Hoare triple {25106#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {25113#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:38:08,246 INFO L273 TraceCheckUtils]: 12: Hoare triple {25113#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {25113#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:38:08,247 INFO L273 TraceCheckUtils]: 13: Hoare triple {25113#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {25120#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:38:08,248 INFO L273 TraceCheckUtils]: 14: Hoare triple {25120#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {25120#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:38:08,248 INFO L273 TraceCheckUtils]: 15: Hoare triple {25120#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {25127#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:38:08,249 INFO L273 TraceCheckUtils]: 16: Hoare triple {25127#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {25127#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:38:08,250 INFO L273 TraceCheckUtils]: 17: Hoare triple {25127#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {25134#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:38:08,250 INFO L273 TraceCheckUtils]: 18: Hoare triple {25134#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {25134#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:38:08,251 INFO L273 TraceCheckUtils]: 19: Hoare triple {25134#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {25141#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:38:08,252 INFO L273 TraceCheckUtils]: 20: Hoare triple {25141#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {25141#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:38:08,252 INFO L273 TraceCheckUtils]: 21: Hoare triple {25141#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {25148#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:38:08,253 INFO L273 TraceCheckUtils]: 22: Hoare triple {25148#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {25148#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:38:08,254 INFO L273 TraceCheckUtils]: 23: Hoare triple {25148#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {25155#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:38:08,254 INFO L273 TraceCheckUtils]: 24: Hoare triple {25155#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {25155#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:38:08,255 INFO L273 TraceCheckUtils]: 25: Hoare triple {25155#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {25162#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:38:08,256 INFO L273 TraceCheckUtils]: 26: Hoare triple {25162#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {25162#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:38:08,256 INFO L273 TraceCheckUtils]: 27: Hoare triple {25162#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {25169#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:38:08,257 INFO L273 TraceCheckUtils]: 28: Hoare triple {25169#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {25169#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:38:08,258 INFO L273 TraceCheckUtils]: 29: Hoare triple {25169#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {25176#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:38:08,258 INFO L273 TraceCheckUtils]: 30: Hoare triple {25176#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {25176#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:38:08,259 INFO L273 TraceCheckUtils]: 31: Hoare triple {25176#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {25183#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:38:08,260 INFO L273 TraceCheckUtils]: 32: Hoare triple {25183#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {25183#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:38:08,260 INFO L273 TraceCheckUtils]: 33: Hoare triple {25183#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {25190#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:38:08,261 INFO L273 TraceCheckUtils]: 34: Hoare triple {25190#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {25190#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:38:08,262 INFO L273 TraceCheckUtils]: 35: Hoare triple {25190#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {25197#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:38:08,262 INFO L273 TraceCheckUtils]: 36: Hoare triple {25197#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {25197#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:38:08,263 INFO L273 TraceCheckUtils]: 37: Hoare triple {25197#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {25204#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:38:08,264 INFO L273 TraceCheckUtils]: 38: Hoare triple {25204#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {25204#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:38:08,265 INFO L273 TraceCheckUtils]: 39: Hoare triple {25204#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {25211#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} is VALID [2019-01-31 14:38:08,265 INFO L273 TraceCheckUtils]: 40: Hoare triple {25211#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} assume i <= n * 4; {25211#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} is VALID [2019-01-31 14:38:08,266 INFO L273 TraceCheckUtils]: 41: Hoare triple {25211#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} assume a[i] != 23;i := i + 4; {25218#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:38:08,267 INFO L273 TraceCheckUtils]: 42: Hoare triple {25218#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {25218#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:38:08,267 INFO L273 TraceCheckUtils]: 43: Hoare triple {25218#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {25225#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:38:08,268 INFO L273 TraceCheckUtils]: 44: Hoare triple {25225#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {25225#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:38:08,269 INFO L273 TraceCheckUtils]: 45: Hoare triple {25225#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {25232#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:38:08,269 INFO L273 TraceCheckUtils]: 46: Hoare triple {25232#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {25232#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:38:08,270 INFO L273 TraceCheckUtils]: 47: Hoare triple {25232#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {25239#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:38:08,271 INFO L273 TraceCheckUtils]: 48: Hoare triple {25239#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {25239#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:38:08,272 INFO L273 TraceCheckUtils]: 49: Hoare triple {25239#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {25246#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:38:08,272 INFO L273 TraceCheckUtils]: 50: Hoare triple {25246#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {25246#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:38:08,273 INFO L273 TraceCheckUtils]: 51: Hoare triple {25246#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {25253#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:38:08,274 INFO L273 TraceCheckUtils]: 52: Hoare triple {25253#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {25253#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:38:08,274 INFO L273 TraceCheckUtils]: 53: Hoare triple {25253#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {25260#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:38:08,275 INFO L273 TraceCheckUtils]: 54: Hoare triple {25260#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {25260#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:38:08,276 INFO L273 TraceCheckUtils]: 55: Hoare triple {25260#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {25267#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:38:08,276 INFO L273 TraceCheckUtils]: 56: Hoare triple {25267#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {25267#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:38:08,277 INFO L273 TraceCheckUtils]: 57: Hoare triple {25267#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {25274#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:38:08,278 INFO L273 TraceCheckUtils]: 58: Hoare triple {25274#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {25274#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:38:08,278 INFO L273 TraceCheckUtils]: 59: Hoare triple {25274#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {25281#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:38:08,279 INFO L273 TraceCheckUtils]: 60: Hoare triple {25281#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {25281#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:38:08,280 INFO L273 TraceCheckUtils]: 61: Hoare triple {25281#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {25288#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:38:08,280 INFO L273 TraceCheckUtils]: 62: Hoare triple {25288#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {25288#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:38:08,281 INFO L273 TraceCheckUtils]: 63: Hoare triple {25288#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {25295#(and (= main_i 128) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:38:08,282 INFO L273 TraceCheckUtils]: 64: Hoare triple {25295#(and (= main_i 128) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {25295#(and (= main_i 128) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:38:08,282 INFO L273 TraceCheckUtils]: 65: Hoare triple {25295#(and (= main_i 128) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {25302#(and (= main_i 132) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:38:08,283 INFO L273 TraceCheckUtils]: 66: Hoare triple {25302#(and (= main_i 132) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {25302#(and (= main_i 132) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:38:08,284 INFO L273 TraceCheckUtils]: 67: Hoare triple {25302#(and (= main_i 132) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {25309#(and (= main_i 136) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:38:08,284 INFO L273 TraceCheckUtils]: 68: Hoare triple {25309#(and (= main_i 136) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {25309#(and (= main_i 136) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:38:08,285 INFO L273 TraceCheckUtils]: 69: Hoare triple {25309#(and (= main_i 136) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {25316#(and (= 23 (select main_a (* 4 main_n))) (= main_i 140))} is VALID [2019-01-31 14:38:08,286 INFO L273 TraceCheckUtils]: 70: Hoare triple {25316#(and (= 23 (select main_a (* 4 main_n))) (= main_i 140))} assume i <= n * 4; {25316#(and (= 23 (select main_a (* 4 main_n))) (= main_i 140))} is VALID [2019-01-31 14:38:08,287 INFO L273 TraceCheckUtils]: 71: Hoare triple {25316#(and (= 23 (select main_a (* 4 main_n))) (= main_i 140))} assume a[i] != 23;i := i + 4; {25323#(and (= main_i 144) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:38:08,287 INFO L273 TraceCheckUtils]: 72: Hoare triple {25323#(and (= main_i 144) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {25323#(and (= main_i 144) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:38:08,288 INFO L273 TraceCheckUtils]: 73: Hoare triple {25323#(and (= main_i 144) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {25330#(and (= main_i 148) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:38:08,289 INFO L273 TraceCheckUtils]: 74: Hoare triple {25330#(and (= main_i 148) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {25330#(and (= main_i 148) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:38:08,289 INFO L273 TraceCheckUtils]: 75: Hoare triple {25330#(and (= main_i 148) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {25337#(and (= main_i 152) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:38:08,290 INFO L273 TraceCheckUtils]: 76: Hoare triple {25337#(and (= main_i 152) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {25337#(and (= main_i 152) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:38:08,291 INFO L273 TraceCheckUtils]: 77: Hoare triple {25337#(and (= main_i 152) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {25344#(and (= main_i 156) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:38:08,291 INFO L273 TraceCheckUtils]: 78: Hoare triple {25344#(and (= main_i 156) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {25344#(and (= main_i 156) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:38:08,292 INFO L273 TraceCheckUtils]: 79: Hoare triple {25344#(and (= main_i 156) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {25351#(and (= main_i 160) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:38:08,293 INFO L273 TraceCheckUtils]: 80: Hoare triple {25351#(and (= main_i 160) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {25351#(and (= main_i 160) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:38:08,293 INFO L273 TraceCheckUtils]: 81: Hoare triple {25351#(and (= main_i 160) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {25358#(and (= 23 (select main_a (* 4 main_n))) (= main_i 164))} is VALID [2019-01-31 14:38:08,294 INFO L273 TraceCheckUtils]: 82: Hoare triple {25358#(and (= 23 (select main_a (* 4 main_n))) (= main_i 164))} assume i <= n * 4; {25358#(and (= 23 (select main_a (* 4 main_n))) (= main_i 164))} is VALID [2019-01-31 14:38:08,295 INFO L273 TraceCheckUtils]: 83: Hoare triple {25358#(and (= 23 (select main_a (* 4 main_n))) (= main_i 164))} assume a[i] != 23;i := i + 4; {25365#(and (= main_i 168) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:38:08,295 INFO L273 TraceCheckUtils]: 84: Hoare triple {25365#(and (= main_i 168) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {25365#(and (= main_i 168) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:38:08,296 INFO L273 TraceCheckUtils]: 85: Hoare triple {25365#(and (= main_i 168) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {25372#(and (= main_i 172) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:38:08,297 INFO L273 TraceCheckUtils]: 86: Hoare triple {25372#(and (= main_i 172) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {25376#(and (= main_i 172) (<= main_i (* 4 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:38:08,298 INFO L273 TraceCheckUtils]: 87: Hoare triple {25376#(and (= main_i 172) (<= main_i (* 4 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {25070#(and (<= main_i 176) (<= 44 main_n))} is VALID [2019-01-31 14:38:08,298 INFO L273 TraceCheckUtils]: 88: Hoare triple {25070#(and (<= main_i 176) (<= 44 main_n))} assume !(i <= n * 4); {25024#false} is VALID [2019-01-31 14:38:08,318 INFO L134 CoverageAnalysis]: Checked inductivity of 1892 backedges. 0 proven. 1892 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-31 14:38:08,318 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2019-01-31 14:38:14,057 INFO L273 TraceCheckUtils]: 88: Hoare triple {25383#(<= main_i (* 4 main_n))} assume !(i <= n * 4); {25024#false} is VALID [2019-01-31 14:38:14,058 INFO L273 TraceCheckUtils]: 87: Hoare triple {25387#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} assume a[i] != 23;i := i + 4; {25383#(<= main_i (* 4 main_n))} is VALID [2019-01-31 14:38:14,058 INFO L273 TraceCheckUtils]: 86: Hoare triple {25391#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} assume i <= n * 4; {25387#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} is VALID [2019-01-31 14:38:14,059 INFO L273 TraceCheckUtils]: 85: Hoare triple {25395#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume a[i] != 23;i := i + 4; {25391#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} is VALID [2019-01-31 14:38:14,060 INFO L273 TraceCheckUtils]: 84: Hoare triple {25395#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume i <= n * 4; {25395#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2019-01-31 14:38:14,061 INFO L273 TraceCheckUtils]: 83: Hoare triple {25402#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume a[i] != 23;i := i + 4; {25395#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2019-01-31 14:38:14,061 INFO L273 TraceCheckUtils]: 82: Hoare triple {25402#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume i <= n * 4; {25402#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2019-01-31 14:38:14,063 INFO L273 TraceCheckUtils]: 81: Hoare triple {25409#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume a[i] != 23;i := i + 4; {25402#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2019-01-31 14:38:14,063 INFO L273 TraceCheckUtils]: 80: Hoare triple {25409#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume i <= n * 4; {25409#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2019-01-31 14:38:14,064 INFO L273 TraceCheckUtils]: 79: Hoare triple {25416#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume a[i] != 23;i := i + 4; {25409#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2019-01-31 14:38:14,065 INFO L273 TraceCheckUtils]: 78: Hoare triple {25416#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume i <= n * 4; {25416#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2019-01-31 14:38:14,066 INFO L273 TraceCheckUtils]: 77: Hoare triple {25423#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {25416#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2019-01-31 14:38:14,066 INFO L273 TraceCheckUtils]: 76: Hoare triple {25423#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume i <= n * 4; {25423#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2019-01-31 14:38:14,067 INFO L273 TraceCheckUtils]: 75: Hoare triple {25430#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume a[i] != 23;i := i + 4; {25423#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2019-01-31 14:38:14,068 INFO L273 TraceCheckUtils]: 74: Hoare triple {25430#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume i <= n * 4; {25430#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2019-01-31 14:38:14,069 INFO L273 TraceCheckUtils]: 73: Hoare triple {25437#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {25430#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2019-01-31 14:38:14,069 INFO L273 TraceCheckUtils]: 72: Hoare triple {25437#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume i <= n * 4; {25437#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2019-01-31 14:38:14,070 INFO L273 TraceCheckUtils]: 71: Hoare triple {25444#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {25437#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2019-01-31 14:38:14,071 INFO L273 TraceCheckUtils]: 70: Hoare triple {25444#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume i <= n * 4; {25444#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2019-01-31 14:38:14,072 INFO L273 TraceCheckUtils]: 69: Hoare triple {25451#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {25444#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2019-01-31 14:38:14,072 INFO L273 TraceCheckUtils]: 68: Hoare triple {25451#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume i <= n * 4; {25451#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2019-01-31 14:38:14,073 INFO L273 TraceCheckUtils]: 67: Hoare triple {25458#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} assume a[i] != 23;i := i + 4; {25451#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2019-01-31 14:38:14,074 INFO L273 TraceCheckUtils]: 66: Hoare triple {25458#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} assume i <= n * 4; {25458#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} is VALID [2019-01-31 14:38:14,075 INFO L273 TraceCheckUtils]: 65: Hoare triple {25465#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {25458#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} is VALID [2019-01-31 14:38:14,076 INFO L273 TraceCheckUtils]: 64: Hoare triple {25465#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} assume i <= n * 4; {25465#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} is VALID [2019-01-31 14:38:14,077 INFO L273 TraceCheckUtils]: 63: Hoare triple {25472#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {25465#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} is VALID [2019-01-31 14:38:14,077 INFO L273 TraceCheckUtils]: 62: Hoare triple {25472#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} assume i <= n * 4; {25472#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} is VALID [2019-01-31 14:38:14,078 INFO L273 TraceCheckUtils]: 61: Hoare triple {25479#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} assume a[i] != 23;i := i + 4; {25472#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} is VALID [2019-01-31 14:38:14,079 INFO L273 TraceCheckUtils]: 60: Hoare triple {25479#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} assume i <= n * 4; {25479#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} is VALID [2019-01-31 14:38:14,080 INFO L273 TraceCheckUtils]: 59: Hoare triple {25486#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {25479#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} is VALID [2019-01-31 14:38:14,080 INFO L273 TraceCheckUtils]: 58: Hoare triple {25486#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} assume i <= n * 4; {25486#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} is VALID [2019-01-31 14:38:14,081 INFO L273 TraceCheckUtils]: 57: Hoare triple {25493#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} assume a[i] != 23;i := i + 4; {25486#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} is VALID [2019-01-31 14:38:14,082 INFO L273 TraceCheckUtils]: 56: Hoare triple {25493#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} assume i <= n * 4; {25493#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} is VALID [2019-01-31 14:38:14,083 INFO L273 TraceCheckUtils]: 55: Hoare triple {25500#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} assume a[i] != 23;i := i + 4; {25493#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} is VALID [2019-01-31 14:38:14,083 INFO L273 TraceCheckUtils]: 54: Hoare triple {25500#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} assume i <= n * 4; {25500#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} is VALID [2019-01-31 14:38:14,084 INFO L273 TraceCheckUtils]: 53: Hoare triple {25507#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} assume a[i] != 23;i := i + 4; {25500#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} is VALID [2019-01-31 14:38:14,085 INFO L273 TraceCheckUtils]: 52: Hoare triple {25507#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} assume i <= n * 4; {25507#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} is VALID [2019-01-31 14:38:14,086 INFO L273 TraceCheckUtils]: 51: Hoare triple {25514#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} assume a[i] != 23;i := i + 4; {25507#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} is VALID [2019-01-31 14:38:14,086 INFO L273 TraceCheckUtils]: 50: Hoare triple {25514#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} assume i <= n * 4; {25514#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} is VALID [2019-01-31 14:38:14,088 INFO L273 TraceCheckUtils]: 49: Hoare triple {25521#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} assume a[i] != 23;i := i + 4; {25514#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} is VALID [2019-01-31 14:38:14,088 INFO L273 TraceCheckUtils]: 48: Hoare triple {25521#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} assume i <= n * 4; {25521#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} is VALID [2019-01-31 14:38:14,089 INFO L273 TraceCheckUtils]: 47: Hoare triple {25528#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} assume a[i] != 23;i := i + 4; {25521#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} is VALID [2019-01-31 14:38:14,090 INFO L273 TraceCheckUtils]: 46: Hoare triple {25528#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} assume i <= n * 4; {25528#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} is VALID [2019-01-31 14:38:14,091 INFO L273 TraceCheckUtils]: 45: Hoare triple {25535#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {25528#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} is VALID [2019-01-31 14:38:14,091 INFO L273 TraceCheckUtils]: 44: Hoare triple {25535#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} assume i <= n * 4; {25535#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} is VALID [2019-01-31 14:38:14,092 INFO L273 TraceCheckUtils]: 43: Hoare triple {25542#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {25535#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} is VALID [2019-01-31 14:38:14,093 INFO L273 TraceCheckUtils]: 42: Hoare triple {25542#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} assume i <= n * 4; {25542#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} is VALID [2019-01-31 14:38:14,094 INFO L273 TraceCheckUtils]: 41: Hoare triple {25549#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {25542#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} is VALID [2019-01-31 14:38:14,094 INFO L273 TraceCheckUtils]: 40: Hoare triple {25549#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} assume i <= n * 4; {25549#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} is VALID [2019-01-31 14:38:14,095 INFO L273 TraceCheckUtils]: 39: Hoare triple {25556#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} assume a[i] != 23;i := i + 4; {25549#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} is VALID [2019-01-31 14:38:14,096 INFO L273 TraceCheckUtils]: 38: Hoare triple {25556#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} assume i <= n * 4; {25556#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} is VALID [2019-01-31 14:38:14,097 INFO L273 TraceCheckUtils]: 37: Hoare triple {25563#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {25556#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} is VALID [2019-01-31 14:38:14,097 INFO L273 TraceCheckUtils]: 36: Hoare triple {25563#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} assume i <= n * 4; {25563#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} is VALID [2019-01-31 14:38:14,098 INFO L273 TraceCheckUtils]: 35: Hoare triple {25570#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} assume a[i] != 23;i := i + 4; {25563#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} is VALID [2019-01-31 14:38:14,099 INFO L273 TraceCheckUtils]: 34: Hoare triple {25570#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} assume i <= n * 4; {25570#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} is VALID [2019-01-31 14:38:14,100 INFO L273 TraceCheckUtils]: 33: Hoare triple {25577#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} assume a[i] != 23;i := i + 4; {25570#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} is VALID [2019-01-31 14:38:14,101 INFO L273 TraceCheckUtils]: 32: Hoare triple {25577#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} assume i <= n * 4; {25577#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} is VALID [2019-01-31 14:38:14,102 INFO L273 TraceCheckUtils]: 31: Hoare triple {25584#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} assume a[i] != 23;i := i + 4; {25577#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} is VALID [2019-01-31 14:38:14,102 INFO L273 TraceCheckUtils]: 30: Hoare triple {25584#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} assume i <= n * 4; {25584#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} is VALID [2019-01-31 14:38:14,103 INFO L273 TraceCheckUtils]: 29: Hoare triple {25591#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {25584#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} is VALID [2019-01-31 14:38:14,104 INFO L273 TraceCheckUtils]: 28: Hoare triple {25591#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} assume i <= n * 4; {25591#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} is VALID [2019-01-31 14:38:14,105 INFO L273 TraceCheckUtils]: 27: Hoare triple {25598#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {25591#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} is VALID [2019-01-31 14:38:14,105 INFO L273 TraceCheckUtils]: 26: Hoare triple {25598#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} assume i <= n * 4; {25598#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} is VALID [2019-01-31 14:38:14,106 INFO L273 TraceCheckUtils]: 25: Hoare triple {25605#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} assume a[i] != 23;i := i + 4; {25598#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} is VALID [2019-01-31 14:38:14,107 INFO L273 TraceCheckUtils]: 24: Hoare triple {25605#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} assume i <= n * 4; {25605#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} is VALID [2019-01-31 14:38:14,108 INFO L273 TraceCheckUtils]: 23: Hoare triple {25612#(or (< (* 4 main_n) (+ main_i 128)) (= (select main_a (+ main_i 128)) 23) (< (+ main_i 131) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {25605#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} is VALID [2019-01-31 14:38:14,108 INFO L273 TraceCheckUtils]: 22: Hoare triple {25612#(or (< (* 4 main_n) (+ main_i 128)) (= (select main_a (+ main_i 128)) 23) (< (+ main_i 131) (* 4 main_n)))} assume i <= n * 4; {25612#(or (< (* 4 main_n) (+ main_i 128)) (= (select main_a (+ main_i 128)) 23) (< (+ main_i 131) (* 4 main_n)))} is VALID [2019-01-31 14:38:14,109 INFO L273 TraceCheckUtils]: 21: Hoare triple {25619#(or (< (* 4 main_n) (+ main_i 132)) (< (+ main_i 135) (* 4 main_n)) (= (select main_a (+ main_i 132)) 23))} assume a[i] != 23;i := i + 4; {25612#(or (< (* 4 main_n) (+ main_i 128)) (= (select main_a (+ main_i 128)) 23) (< (+ main_i 131) (* 4 main_n)))} is VALID [2019-01-31 14:38:14,110 INFO L273 TraceCheckUtils]: 20: Hoare triple {25619#(or (< (* 4 main_n) (+ main_i 132)) (< (+ main_i 135) (* 4 main_n)) (= (select main_a (+ main_i 132)) 23))} assume i <= n * 4; {25619#(or (< (* 4 main_n) (+ main_i 132)) (< (+ main_i 135) (* 4 main_n)) (= (select main_a (+ main_i 132)) 23))} is VALID [2019-01-31 14:38:14,111 INFO L273 TraceCheckUtils]: 19: Hoare triple {25626#(or (< (+ main_i 139) (* 4 main_n)) (= (select main_a (+ main_i 136)) 23) (< (* 4 main_n) (+ main_i 136)))} assume a[i] != 23;i := i + 4; {25619#(or (< (* 4 main_n) (+ main_i 132)) (< (+ main_i 135) (* 4 main_n)) (= (select main_a (+ main_i 132)) 23))} is VALID [2019-01-31 14:38:14,111 INFO L273 TraceCheckUtils]: 18: Hoare triple {25626#(or (< (+ main_i 139) (* 4 main_n)) (= (select main_a (+ main_i 136)) 23) (< (* 4 main_n) (+ main_i 136)))} assume i <= n * 4; {25626#(or (< (+ main_i 139) (* 4 main_n)) (= (select main_a (+ main_i 136)) 23) (< (* 4 main_n) (+ main_i 136)))} is VALID [2019-01-31 14:38:14,113 INFO L273 TraceCheckUtils]: 17: Hoare triple {25633#(or (< (* 4 main_n) (+ main_i 140)) (< (+ main_i 143) (* 4 main_n)) (= (select main_a (+ main_i 140)) 23))} assume a[i] != 23;i := i + 4; {25626#(or (< (+ main_i 139) (* 4 main_n)) (= (select main_a (+ main_i 136)) 23) (< (* 4 main_n) (+ main_i 136)))} is VALID [2019-01-31 14:38:14,113 INFO L273 TraceCheckUtils]: 16: Hoare triple {25633#(or (< (* 4 main_n) (+ main_i 140)) (< (+ main_i 143) (* 4 main_n)) (= (select main_a (+ main_i 140)) 23))} assume i <= n * 4; {25633#(or (< (* 4 main_n) (+ main_i 140)) (< (+ main_i 143) (* 4 main_n)) (= (select main_a (+ main_i 140)) 23))} is VALID [2019-01-31 14:38:14,114 INFO L273 TraceCheckUtils]: 15: Hoare triple {25640#(or (= (select main_a (+ main_i 144)) 23) (< (+ main_i 147) (* 4 main_n)) (< (* 4 main_n) (+ main_i 144)))} assume a[i] != 23;i := i + 4; {25633#(or (< (* 4 main_n) (+ main_i 140)) (< (+ main_i 143) (* 4 main_n)) (= (select main_a (+ main_i 140)) 23))} is VALID [2019-01-31 14:38:14,115 INFO L273 TraceCheckUtils]: 14: Hoare triple {25640#(or (= (select main_a (+ main_i 144)) 23) (< (+ main_i 147) (* 4 main_n)) (< (* 4 main_n) (+ main_i 144)))} assume i <= n * 4; {25640#(or (= (select main_a (+ main_i 144)) 23) (< (+ main_i 147) (* 4 main_n)) (< (* 4 main_n) (+ main_i 144)))} is VALID [2019-01-31 14:38:14,116 INFO L273 TraceCheckUtils]: 13: Hoare triple {25647#(or (< (+ main_i 151) (* 4 main_n)) (< (* 4 main_n) (+ main_i 148)) (= (select main_a (+ main_i 148)) 23))} assume a[i] != 23;i := i + 4; {25640#(or (= (select main_a (+ main_i 144)) 23) (< (+ main_i 147) (* 4 main_n)) (< (* 4 main_n) (+ main_i 144)))} is VALID [2019-01-31 14:38:14,116 INFO L273 TraceCheckUtils]: 12: Hoare triple {25647#(or (< (+ main_i 151) (* 4 main_n)) (< (* 4 main_n) (+ main_i 148)) (= (select main_a (+ main_i 148)) 23))} assume i <= n * 4; {25647#(or (< (+ main_i 151) (* 4 main_n)) (< (* 4 main_n) (+ main_i 148)) (= (select main_a (+ main_i 148)) 23))} is VALID [2019-01-31 14:38:14,117 INFO L273 TraceCheckUtils]: 11: Hoare triple {25654#(or (= 23 (select main_a (+ main_i 152))) (< (+ main_i 155) (* 4 main_n)) (< (* 4 main_n) (+ main_i 152)))} assume a[i] != 23;i := i + 4; {25647#(or (< (+ main_i 151) (* 4 main_n)) (< (* 4 main_n) (+ main_i 148)) (= (select main_a (+ main_i 148)) 23))} is VALID [2019-01-31 14:38:14,118 INFO L273 TraceCheckUtils]: 10: Hoare triple {25654#(or (= 23 (select main_a (+ main_i 152))) (< (+ main_i 155) (* 4 main_n)) (< (* 4 main_n) (+ main_i 152)))} assume i <= n * 4; {25654#(or (= 23 (select main_a (+ main_i 152))) (< (+ main_i 155) (* 4 main_n)) (< (* 4 main_n) (+ main_i 152)))} is VALID [2019-01-31 14:38:14,119 INFO L273 TraceCheckUtils]: 9: Hoare triple {25661#(or (< (+ main_i 159) (* 4 main_n)) (= (select main_a (+ main_i 156)) 23) (< (* 4 main_n) (+ main_i 156)))} assume a[i] != 23;i := i + 4; {25654#(or (= 23 (select main_a (+ main_i 152))) (< (+ main_i 155) (* 4 main_n)) (< (* 4 main_n) (+ main_i 152)))} is VALID [2019-01-31 14:38:14,119 INFO L273 TraceCheckUtils]: 8: Hoare triple {25661#(or (< (+ main_i 159) (* 4 main_n)) (= (select main_a (+ main_i 156)) 23) (< (* 4 main_n) (+ main_i 156)))} assume i <= n * 4; {25661#(or (< (+ main_i 159) (* 4 main_n)) (= (select main_a (+ main_i 156)) 23) (< (* 4 main_n) (+ main_i 156)))} is VALID [2019-01-31 14:38:14,120 INFO L273 TraceCheckUtils]: 7: Hoare triple {25668#(or (< (+ main_i 163) (* 4 main_n)) (= (select main_a (+ main_i 160)) 23) (< (* 4 main_n) (+ main_i 160)))} assume a[i] != 23;i := i + 4; {25661#(or (< (+ main_i 159) (* 4 main_n)) (= (select main_a (+ main_i 156)) 23) (< (* 4 main_n) (+ main_i 156)))} is VALID [2019-01-31 14:38:14,121 INFO L273 TraceCheckUtils]: 6: Hoare triple {25668#(or (< (+ main_i 163) (* 4 main_n)) (= (select main_a (+ main_i 160)) 23) (< (* 4 main_n) (+ main_i 160)))} assume i <= n * 4; {25668#(or (< (+ main_i 163) (* 4 main_n)) (= (select main_a (+ main_i 160)) 23) (< (* 4 main_n) (+ main_i 160)))} is VALID [2019-01-31 14:38:14,122 INFO L273 TraceCheckUtils]: 5: Hoare triple {25675#(or (< (* 4 main_n) (+ main_i 164)) (< (+ main_i 167) (* 4 main_n)) (= (select main_a (+ main_i 164)) 23))} assume a[i] != 23;i := i + 4; {25668#(or (< (+ main_i 163) (* 4 main_n)) (= (select main_a (+ main_i 160)) 23) (< (* 4 main_n) (+ main_i 160)))} is VALID [2019-01-31 14:38:14,122 INFO L273 TraceCheckUtils]: 4: Hoare triple {25675#(or (< (* 4 main_n) (+ main_i 164)) (< (+ main_i 167) (* 4 main_n)) (= (select main_a (+ main_i 164)) 23))} assume i <= n * 4; {25675#(or (< (* 4 main_n) (+ main_i 164)) (< (+ main_i 167) (* 4 main_n)) (= (select main_a (+ main_i 164)) 23))} is VALID [2019-01-31 14:38:14,123 INFO L273 TraceCheckUtils]: 3: Hoare triple {25682#(or (= (select main_a (+ main_i 168)) 23) (< (* 4 main_n) (+ main_i 168)) (< (+ main_i 171) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {25675#(or (< (* 4 main_n) (+ main_i 164)) (< (+ main_i 167) (* 4 main_n)) (= (select main_a (+ main_i 164)) 23))} is VALID [2019-01-31 14:38:14,124 INFO L273 TraceCheckUtils]: 2: Hoare triple {25682#(or (= (select main_a (+ main_i 168)) 23) (< (* 4 main_n) (+ main_i 168)) (< (+ main_i 171) (* 4 main_n)))} assume i <= n * 4; {25682#(or (= (select main_a (+ main_i 168)) 23) (< (* 4 main_n) (+ main_i 168)) (< (+ main_i 171) (* 4 main_n)))} is VALID [2019-01-31 14:38:14,125 INFO L273 TraceCheckUtils]: 1: Hoare triple {25689#(or (< (* 4 main_n) (+ main_i 172)) (= (select main_a (+ main_i 172)) 23) (< (+ main_i 175) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {25682#(or (= (select main_a (+ main_i 168)) 23) (< (* 4 main_n) (+ main_i 168)) (< (+ main_i 171) (* 4 main_n)))} is VALID [2019-01-31 14:38:14,126 INFO L273 TraceCheckUtils]: 0: Hoare triple {25023#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {25689#(or (< (* 4 main_n) (+ main_i 172)) (= (select main_a (+ main_i 172)) 23) (< (+ main_i 175) (* 4 main_n)))} is VALID [2019-01-31 14:38:14,162 INFO L134 CoverageAnalysis]: Checked inductivity of 1892 backedges. 0 proven. 1892 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-31 14:38:14,191 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-01-31 14:38:14,191 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [46, 46, 46] total 137 [2019-01-31 14:38:14,191 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-01-31 14:38:14,192 INFO L78 Accepts]: Start accepts. Automaton has 93 states. Word has length 89 [2019-01-31 14:38:14,192 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-01-31 14:38:14,192 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 93 states. [2019-01-31 14:38:14,483 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 177 edges. 177 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-01-31 14:38:14,484 INFO L459 AbstractCegarLoop]: Interpolant automaton has 93 states [2019-01-31 14:38:14,484 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 93 interpolants. [2019-01-31 14:38:14,485 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2354, Invalid=16828, Unknown=0, NotChecked=0, Total=19182 [2019-01-31 14:38:14,485 INFO L87 Difference]: Start difference. First operand 90 states and 90 transitions. Second operand 93 states. [2019-01-31 14:38:29,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 14:38:29,392 INFO L93 Difference]: Finished difference Result 94 states and 94 transitions. [2019-01-31 14:38:29,392 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2019-01-31 14:38:29,393 INFO L78 Accepts]: Start accepts. Automaton has 93 states. Word has length 89 [2019-01-31 14:38:29,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-31 14:38:29,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 93 states. [2019-01-31 14:38:29,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 94 transitions. [2019-01-31 14:38:29,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 93 states. [2019-01-31 14:38:29,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 94 transitions. [2019-01-31 14:38:29,395 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 48 states and 94 transitions. [2019-01-31 14:38:29,497 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 94 edges. 94 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-01-31 14:38:29,499 INFO L225 Difference]: With dead ends: 94 [2019-01-31 14:38:29,499 INFO L226 Difference]: Without dead ends: 93 [2019-01-31 14:38:29,500 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 222 GetRequests, 84 SyntacticMatches, 1 SemanticMatches, 137 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4320 ImplicationChecksByTransitivity, 11.0s TimeCoverageRelationStatistics Valid=2354, Invalid=16828, Unknown=0, NotChecked=0, Total=19182 [2019-01-31 14:38:29,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2019-01-31 14:38:29,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 92. [2019-01-31 14:38:29,591 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-01-31 14:38:29,591 INFO L82 GeneralOperation]: Start isEquivalent. First operand 93 states. Second operand 92 states. [2019-01-31 14:38:29,591 INFO L74 IsIncluded]: Start isIncluded. First operand 93 states. Second operand 92 states. [2019-01-31 14:38:29,591 INFO L87 Difference]: Start difference. First operand 93 states. Second operand 92 states. [2019-01-31 14:38:29,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 14:38:29,593 INFO L93 Difference]: Finished difference Result 93 states and 93 transitions. [2019-01-31 14:38:29,593 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 93 transitions. [2019-01-31 14:38:29,593 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-31 14:38:29,593 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-01-31 14:38:29,593 INFO L74 IsIncluded]: Start isIncluded. First operand 92 states. Second operand 93 states. [2019-01-31 14:38:29,593 INFO L87 Difference]: Start difference. First operand 92 states. Second operand 93 states. [2019-01-31 14:38:29,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 14:38:29,594 INFO L93 Difference]: Finished difference Result 93 states and 93 transitions. [2019-01-31 14:38:29,595 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 93 transitions. [2019-01-31 14:38:29,595 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-31 14:38:29,595 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-01-31 14:38:29,595 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-01-31 14:38:29,595 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-01-31 14:38:29,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 92 states. [2019-01-31 14:38:29,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 92 transitions. [2019-01-31 14:38:29,596 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 92 transitions. Word has length 89 [2019-01-31 14:38:29,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-31 14:38:29,597 INFO L480 AbstractCegarLoop]: Abstraction has 92 states and 92 transitions. [2019-01-31 14:38:29,597 INFO L481 AbstractCegarLoop]: Interpolant automaton has 93 states. [2019-01-31 14:38:29,597 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 92 transitions. [2019-01-31 14:38:29,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2019-01-31 14:38:29,597 INFO L394 BasicCegarLoop]: Found error trace [2019-01-31 14:38:29,597 INFO L402 BasicCegarLoop]: trace histogram [45, 44, 1, 1] [2019-01-31 14:38:29,598 INFO L423 AbstractCegarLoop]: === Iteration 45 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-01-31 14:38:29,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-31 14:38:29,598 INFO L82 PathProgramCache]: Analyzing trace with hash -11425992, now seen corresponding path program 44 times [2019-01-31 14:38:29,598 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-01-31 14:38:29,599 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-31 14:38:29,599 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-31 14:38:29,599 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-31 14:38:29,599 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-01-31 14:38:29,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-31 14:38:32,461 INFO L273 TraceCheckUtils]: 0: Hoare triple {26155#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {26157#(and (or (and (<= 0 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)) (or (<= main_i 0) (<= main_n 44)))} is VALID [2019-01-31 14:38:32,463 INFO L273 TraceCheckUtils]: 1: Hoare triple {26157#(and (or (and (<= 0 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)) (or (<= main_i 0) (<= main_n 44)))} assume a[i] != 23;i := i + 4; {26158#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i)) (< 44 main_n)) (or (<= main_n 44) (<= main_i 4)))} is VALID [2019-01-31 14:38:32,464 INFO L273 TraceCheckUtils]: 2: Hoare triple {26158#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i)) (< 44 main_n)) (or (<= main_n 44) (<= main_i 4)))} assume i <= n * 4; {26158#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i)) (< 44 main_n)) (or (<= main_n 44) (<= main_i 4)))} is VALID [2019-01-31 14:38:32,465 INFO L273 TraceCheckUtils]: 3: Hoare triple {26158#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i)) (< 44 main_n)) (or (<= main_n 44) (<= main_i 4)))} assume a[i] != 23;i := i + 4; {26159#(and (or (<= main_i 8) (<= main_n 44)) (or (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)))} is VALID [2019-01-31 14:38:32,465 INFO L273 TraceCheckUtils]: 4: Hoare triple {26159#(and (or (<= main_i 8) (<= main_n 44)) (or (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)))} assume i <= n * 4; {26159#(and (or (<= main_i 8) (<= main_n 44)) (or (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)))} is VALID [2019-01-31 14:38:32,467 INFO L273 TraceCheckUtils]: 5: Hoare triple {26159#(and (or (<= main_i 8) (<= main_n 44)) (or (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)))} assume a[i] != 23;i := i + 4; {26160#(and (or (<= main_n 44) (<= main_i 12)) (or (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)))} is VALID [2019-01-31 14:38:32,467 INFO L273 TraceCheckUtils]: 6: Hoare triple {26160#(and (or (<= main_n 44) (<= main_i 12)) (or (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)))} assume i <= n * 4; {26160#(and (or (<= main_n 44) (<= main_i 12)) (or (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)))} is VALID [2019-01-31 14:38:32,468 INFO L273 TraceCheckUtils]: 7: Hoare triple {26160#(and (or (<= main_n 44) (<= main_i 12)) (or (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)))} assume a[i] != 23;i := i + 4; {26161#(and (or (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)) (or (<= main_n 44) (<= main_i 16)))} is VALID [2019-01-31 14:38:32,469 INFO L273 TraceCheckUtils]: 8: Hoare triple {26161#(and (or (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)) (or (<= main_n 44) (<= main_i 16)))} assume i <= n * 4; {26161#(and (or (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)) (or (<= main_n 44) (<= main_i 16)))} is VALID [2019-01-31 14:38:32,470 INFO L273 TraceCheckUtils]: 9: Hoare triple {26161#(and (or (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)) (or (<= main_n 44) (<= main_i 16)))} assume a[i] != 23;i := i + 4; {26162#(and (or (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)) (or (<= main_i 20) (<= main_n 44)))} is VALID [2019-01-31 14:38:32,471 INFO L273 TraceCheckUtils]: 10: Hoare triple {26162#(and (or (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)) (or (<= main_i 20) (<= main_n 44)))} assume i <= n * 4; {26162#(and (or (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)) (or (<= main_i 20) (<= main_n 44)))} is VALID [2019-01-31 14:38:32,472 INFO L273 TraceCheckUtils]: 11: Hoare triple {26162#(and (or (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)) (or (<= main_i 20) (<= main_n 44)))} assume a[i] != 23;i := i + 4; {26163#(and (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)) (or (<= main_i 24) (<= main_n 44)))} is VALID [2019-01-31 14:38:32,473 INFO L273 TraceCheckUtils]: 12: Hoare triple {26163#(and (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)) (or (<= main_i 24) (<= main_n 44)))} assume i <= n * 4; {26163#(and (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)) (or (<= main_i 24) (<= main_n 44)))} is VALID [2019-01-31 14:38:32,474 INFO L273 TraceCheckUtils]: 13: Hoare triple {26163#(and (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)) (or (<= main_i 24) (<= main_n 44)))} assume a[i] != 23;i := i + 4; {26164#(and (or (<= main_n 44) (<= main_i 28)) (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)))} is VALID [2019-01-31 14:38:32,475 INFO L273 TraceCheckUtils]: 14: Hoare triple {26164#(and (or (<= main_n 44) (<= main_i 28)) (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)))} assume i <= n * 4; {26164#(and (or (<= main_n 44) (<= main_i 28)) (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)))} is VALID [2019-01-31 14:38:32,476 INFO L273 TraceCheckUtils]: 15: Hoare triple {26164#(and (or (<= main_n 44) (<= main_i 28)) (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)))} assume a[i] != 23;i := i + 4; {26165#(and (or (<= main_i 32) (<= main_n 44)) (or (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)))} is VALID [2019-01-31 14:38:32,477 INFO L273 TraceCheckUtils]: 16: Hoare triple {26165#(and (or (<= main_i 32) (<= main_n 44)) (or (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)))} assume i <= n * 4; {26165#(and (or (<= main_i 32) (<= main_n 44)) (or (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)))} is VALID [2019-01-31 14:38:32,478 INFO L273 TraceCheckUtils]: 17: Hoare triple {26165#(and (or (<= main_i 32) (<= main_n 44)) (or (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)))} assume a[i] != 23;i := i + 4; {26166#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i)) (< 44 main_n)) (or (<= main_i 36) (<= main_n 44)))} is VALID [2019-01-31 14:38:32,479 INFO L273 TraceCheckUtils]: 18: Hoare triple {26166#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i)) (< 44 main_n)) (or (<= main_i 36) (<= main_n 44)))} assume i <= n * 4; {26166#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i)) (< 44 main_n)) (or (<= main_i 36) (<= main_n 44)))} is VALID [2019-01-31 14:38:32,480 INFO L273 TraceCheckUtils]: 19: Hoare triple {26166#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i)) (< 44 main_n)) (or (<= main_i 36) (<= main_n 44)))} assume a[i] != 23;i := i + 4; {26167#(and (or (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)) (or (<= main_i 40) (<= main_n 44)))} is VALID [2019-01-31 14:38:32,481 INFO L273 TraceCheckUtils]: 20: Hoare triple {26167#(and (or (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)) (or (<= main_i 40) (<= main_n 44)))} assume i <= n * 4; {26167#(and (or (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)) (or (<= main_i 40) (<= main_n 44)))} is VALID [2019-01-31 14:38:32,482 INFO L273 TraceCheckUtils]: 21: Hoare triple {26167#(and (or (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)) (or (<= main_i 40) (<= main_n 44)))} assume a[i] != 23;i := i + 4; {26168#(and (or (<= main_n 44) (<= main_i 44)) (or (< 44 main_n) (and (<= 44 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:38:32,483 INFO L273 TraceCheckUtils]: 22: Hoare triple {26168#(and (or (<= main_n 44) (<= main_i 44)) (or (< 44 main_n) (and (<= 44 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {26168#(and (or (<= main_n 44) (<= main_i 44)) (or (< 44 main_n) (and (<= 44 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:38:32,484 INFO L273 TraceCheckUtils]: 23: Hoare triple {26168#(and (or (<= main_n 44) (<= main_i 44)) (or (< 44 main_n) (and (<= 44 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {26169#(and (or (and (<= 48 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)) (or (<= main_n 44) (<= main_i 48)))} is VALID [2019-01-31 14:38:32,484 INFO L273 TraceCheckUtils]: 24: Hoare triple {26169#(and (or (and (<= 48 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)) (or (<= main_n 44) (<= main_i 48)))} assume i <= n * 4; {26169#(and (or (and (<= 48 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)) (or (<= main_n 44) (<= main_i 48)))} is VALID [2019-01-31 14:38:32,486 INFO L273 TraceCheckUtils]: 25: Hoare triple {26169#(and (or (and (<= 48 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)) (or (<= main_n 44) (<= main_i 48)))} assume a[i] != 23;i := i + 4; {26170#(and (or (and (<= 52 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)) (or (<= main_i 52) (<= main_n 44)))} is VALID [2019-01-31 14:38:32,486 INFO L273 TraceCheckUtils]: 26: Hoare triple {26170#(and (or (and (<= 52 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)) (or (<= main_i 52) (<= main_n 44)))} assume i <= n * 4; {26170#(and (or (and (<= 52 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)) (or (<= main_i 52) (<= main_n 44)))} is VALID [2019-01-31 14:38:32,487 INFO L273 TraceCheckUtils]: 27: Hoare triple {26170#(and (or (and (<= 52 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)) (or (<= main_i 52) (<= main_n 44)))} assume a[i] != 23;i := i + 4; {26171#(and (or (<= main_i 56) (<= main_n 44)) (or (and (<= 56 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)))} is VALID [2019-01-31 14:38:32,490 INFO L273 TraceCheckUtils]: 28: Hoare triple {26171#(and (or (<= main_i 56) (<= main_n 44)) (or (and (<= 56 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)))} assume i <= n * 4; {26171#(and (or (<= main_i 56) (<= main_n 44)) (or (and (<= 56 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)))} is VALID [2019-01-31 14:38:32,491 INFO L273 TraceCheckUtils]: 29: Hoare triple {26171#(and (or (<= main_i 56) (<= main_n 44)) (or (and (<= 56 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)))} assume a[i] != 23;i := i + 4; {26172#(and (or (<= main_i 60) (<= main_n 44)) (or (< 44 main_n) (and (<= 60 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:38:32,492 INFO L273 TraceCheckUtils]: 30: Hoare triple {26172#(and (or (<= main_i 60) (<= main_n 44)) (or (< 44 main_n) (and (<= 60 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {26172#(and (or (<= main_i 60) (<= main_n 44)) (or (< 44 main_n) (and (<= 60 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:38:32,492 INFO L273 TraceCheckUtils]: 31: Hoare triple {26172#(and (or (<= main_i 60) (<= main_n 44)) (or (< 44 main_n) (and (<= 60 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {26173#(and (or (and (<= 64 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)) (or (<= main_i 64) (<= main_n 44)))} is VALID [2019-01-31 14:38:32,493 INFO L273 TraceCheckUtils]: 32: Hoare triple {26173#(and (or (and (<= 64 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)) (or (<= main_i 64) (<= main_n 44)))} assume i <= n * 4; {26173#(and (or (and (<= 64 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)) (or (<= main_i 64) (<= main_n 44)))} is VALID [2019-01-31 14:38:32,493 INFO L273 TraceCheckUtils]: 33: Hoare triple {26173#(and (or (and (<= 64 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)) (or (<= main_i 64) (<= main_n 44)))} assume a[i] != 23;i := i + 4; {26174#(and (or (<= main_n 44) (<= main_i 68)) (or (and (<= 68 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)))} is VALID [2019-01-31 14:38:32,494 INFO L273 TraceCheckUtils]: 34: Hoare triple {26174#(and (or (<= main_n 44) (<= main_i 68)) (or (and (<= 68 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)))} assume i <= n * 4; {26174#(and (or (<= main_n 44) (<= main_i 68)) (or (and (<= 68 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)))} is VALID [2019-01-31 14:38:32,495 INFO L273 TraceCheckUtils]: 35: Hoare triple {26174#(and (or (<= main_n 44) (<= main_i 68)) (or (and (<= 68 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)))} assume a[i] != 23;i := i + 4; {26175#(and (or (and (<= 72 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)) (or (<= main_n 44) (<= main_i 72)))} is VALID [2019-01-31 14:38:32,496 INFO L273 TraceCheckUtils]: 36: Hoare triple {26175#(and (or (and (<= 72 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)) (or (<= main_n 44) (<= main_i 72)))} assume i <= n * 4; {26175#(and (or (and (<= 72 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)) (or (<= main_n 44) (<= main_i 72)))} is VALID [2019-01-31 14:38:32,497 INFO L273 TraceCheckUtils]: 37: Hoare triple {26175#(and (or (and (<= 72 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)) (or (<= main_n 44) (<= main_i 72)))} assume a[i] != 23;i := i + 4; {26176#(and (or (<= main_i 76) (<= main_n 44)) (or (and (<= 76 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)))} is VALID [2019-01-31 14:38:32,498 INFO L273 TraceCheckUtils]: 38: Hoare triple {26176#(and (or (<= main_i 76) (<= main_n 44)) (or (and (<= 76 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)))} assume i <= n * 4; {26176#(and (or (<= main_i 76) (<= main_n 44)) (or (and (<= 76 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)))} is VALID [2019-01-31 14:38:32,499 INFO L273 TraceCheckUtils]: 39: Hoare triple {26176#(and (or (<= main_i 76) (<= main_n 44)) (or (and (<= 76 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)))} assume a[i] != 23;i := i + 4; {26177#(and (or (and (<= 80 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)) (or (<= main_n 44) (<= main_i 80)))} is VALID [2019-01-31 14:38:32,500 INFO L273 TraceCheckUtils]: 40: Hoare triple {26177#(and (or (and (<= 80 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)) (or (<= main_n 44) (<= main_i 80)))} assume i <= n * 4; {26177#(and (or (and (<= 80 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)) (or (<= main_n 44) (<= main_i 80)))} is VALID [2019-01-31 14:38:32,501 INFO L273 TraceCheckUtils]: 41: Hoare triple {26177#(and (or (and (<= 80 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)) (or (<= main_n 44) (<= main_i 80)))} assume a[i] != 23;i := i + 4; {26178#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 84 main_i)) (< 44 main_n)) (or (<= main_i 84) (<= main_n 44)))} is VALID [2019-01-31 14:38:32,501 INFO L273 TraceCheckUtils]: 42: Hoare triple {26178#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 84 main_i)) (< 44 main_n)) (or (<= main_i 84) (<= main_n 44)))} assume i <= n * 4; {26178#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 84 main_i)) (< 44 main_n)) (or (<= main_i 84) (<= main_n 44)))} is VALID [2019-01-31 14:38:32,502 INFO L273 TraceCheckUtils]: 43: Hoare triple {26178#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 84 main_i)) (< 44 main_n)) (or (<= main_i 84) (<= main_n 44)))} assume a[i] != 23;i := i + 4; {26179#(and (or (<= main_i 88) (<= main_n 44)) (or (and (<= 88 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)))} is VALID [2019-01-31 14:38:32,503 INFO L273 TraceCheckUtils]: 44: Hoare triple {26179#(and (or (<= main_i 88) (<= main_n 44)) (or (and (<= 88 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)))} assume i <= n * 4; {26179#(and (or (<= main_i 88) (<= main_n 44)) (or (and (<= 88 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)))} is VALID [2019-01-31 14:38:32,504 INFO L273 TraceCheckUtils]: 45: Hoare triple {26179#(and (or (<= main_i 88) (<= main_n 44)) (or (and (<= 88 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)))} assume a[i] != 23;i := i + 4; {26180#(and (or (< 44 main_n) (and (<= 92 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 92) (<= main_n 44)))} is VALID [2019-01-31 14:38:32,505 INFO L273 TraceCheckUtils]: 46: Hoare triple {26180#(and (or (< 44 main_n) (and (<= 92 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 92) (<= main_n 44)))} assume i <= n * 4; {26180#(and (or (< 44 main_n) (and (<= 92 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 92) (<= main_n 44)))} is VALID [2019-01-31 14:38:32,506 INFO L273 TraceCheckUtils]: 47: Hoare triple {26180#(and (or (< 44 main_n) (and (<= 92 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 92) (<= main_n 44)))} assume a[i] != 23;i := i + 4; {26181#(and (or (and (<= 96 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)) (or (<= main_i 96) (<= main_n 44)))} is VALID [2019-01-31 14:38:32,507 INFO L273 TraceCheckUtils]: 48: Hoare triple {26181#(and (or (and (<= 96 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)) (or (<= main_i 96) (<= main_n 44)))} assume i <= n * 4; {26181#(and (or (and (<= 96 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)) (or (<= main_i 96) (<= main_n 44)))} is VALID [2019-01-31 14:38:32,508 INFO L273 TraceCheckUtils]: 49: Hoare triple {26181#(and (or (and (<= 96 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)) (or (<= main_i 96) (<= main_n 44)))} assume a[i] != 23;i := i + 4; {26182#(and (or (and (<= 100 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)) (or (<= main_i 100) (<= main_n 44)))} is VALID [2019-01-31 14:38:32,509 INFO L273 TraceCheckUtils]: 50: Hoare triple {26182#(and (or (and (<= 100 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)) (or (<= main_i 100) (<= main_n 44)))} assume i <= n * 4; {26182#(and (or (and (<= 100 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)) (or (<= main_i 100) (<= main_n 44)))} is VALID [2019-01-31 14:38:32,510 INFO L273 TraceCheckUtils]: 51: Hoare triple {26182#(and (or (and (<= 100 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)) (or (<= main_i 100) (<= main_n 44)))} assume a[i] != 23;i := i + 4; {26183#(and (or (<= main_i 104) (<= main_n 44)) (or (and (<= 104 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)))} is VALID [2019-01-31 14:38:32,511 INFO L273 TraceCheckUtils]: 52: Hoare triple {26183#(and (or (<= main_i 104) (<= main_n 44)) (or (and (<= 104 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)))} assume i <= n * 4; {26183#(and (or (<= main_i 104) (<= main_n 44)) (or (and (<= 104 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)))} is VALID [2019-01-31 14:38:32,512 INFO L273 TraceCheckUtils]: 53: Hoare triple {26183#(and (or (<= main_i 104) (<= main_n 44)) (or (and (<= 104 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)))} assume a[i] != 23;i := i + 4; {26184#(and (or (and (<= 108 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)) (or (<= main_n 44) (<= main_i 108)))} is VALID [2019-01-31 14:38:32,513 INFO L273 TraceCheckUtils]: 54: Hoare triple {26184#(and (or (and (<= 108 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)) (or (<= main_n 44) (<= main_i 108)))} assume i <= n * 4; {26184#(and (or (and (<= 108 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)) (or (<= main_n 44) (<= main_i 108)))} is VALID [2019-01-31 14:38:32,514 INFO L273 TraceCheckUtils]: 55: Hoare triple {26184#(and (or (and (<= 108 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)) (or (<= main_n 44) (<= main_i 108)))} assume a[i] != 23;i := i + 4; {26185#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 112 main_i)) (< 44 main_n)) (or (<= main_n 44) (<= main_i 112)))} is VALID [2019-01-31 14:38:32,515 INFO L273 TraceCheckUtils]: 56: Hoare triple {26185#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 112 main_i)) (< 44 main_n)) (or (<= main_n 44) (<= main_i 112)))} assume i <= n * 4; {26185#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 112 main_i)) (< 44 main_n)) (or (<= main_n 44) (<= main_i 112)))} is VALID [2019-01-31 14:38:32,516 INFO L273 TraceCheckUtils]: 57: Hoare triple {26185#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 112 main_i)) (< 44 main_n)) (or (<= main_n 44) (<= main_i 112)))} assume a[i] != 23;i := i + 4; {26186#(and (or (and (<= 116 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)) (or (<= main_i 116) (<= main_n 44)))} is VALID [2019-01-31 14:38:32,516 INFO L273 TraceCheckUtils]: 58: Hoare triple {26186#(and (or (and (<= 116 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)) (or (<= main_i 116) (<= main_n 44)))} assume i <= n * 4; {26186#(and (or (and (<= 116 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)) (or (<= main_i 116) (<= main_n 44)))} is VALID [2019-01-31 14:38:32,517 INFO L273 TraceCheckUtils]: 59: Hoare triple {26186#(and (or (and (<= 116 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)) (or (<= main_i 116) (<= main_n 44)))} assume a[i] != 23;i := i + 4; {26187#(and (or (<= main_i 120) (<= main_n 44)) (or (and (<= 120 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)))} is VALID [2019-01-31 14:38:32,518 INFO L273 TraceCheckUtils]: 60: Hoare triple {26187#(and (or (<= main_i 120) (<= main_n 44)) (or (and (<= 120 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)))} assume i <= n * 4; {26187#(and (or (<= main_i 120) (<= main_n 44)) (or (and (<= 120 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)))} is VALID [2019-01-31 14:38:32,519 INFO L273 TraceCheckUtils]: 61: Hoare triple {26187#(and (or (<= main_i 120) (<= main_n 44)) (or (and (<= 120 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)))} assume a[i] != 23;i := i + 4; {26188#(and (or (<= main_n 44) (<= main_i 124)) (or (and (<= 124 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)))} is VALID [2019-01-31 14:38:32,520 INFO L273 TraceCheckUtils]: 62: Hoare triple {26188#(and (or (<= main_n 44) (<= main_i 124)) (or (and (<= 124 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)))} assume i <= n * 4; {26188#(and (or (<= main_n 44) (<= main_i 124)) (or (and (<= 124 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)))} is VALID [2019-01-31 14:38:32,521 INFO L273 TraceCheckUtils]: 63: Hoare triple {26188#(and (or (<= main_n 44) (<= main_i 124)) (or (and (<= 124 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)))} assume a[i] != 23;i := i + 4; {26189#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 128 main_i)) (< 44 main_n)) (or (<= main_i 128) (<= main_n 44)))} is VALID [2019-01-31 14:38:32,522 INFO L273 TraceCheckUtils]: 64: Hoare triple {26189#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 128 main_i)) (< 44 main_n)) (or (<= main_i 128) (<= main_n 44)))} assume i <= n * 4; {26189#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 128 main_i)) (< 44 main_n)) (or (<= main_i 128) (<= main_n 44)))} is VALID [2019-01-31 14:38:32,523 INFO L273 TraceCheckUtils]: 65: Hoare triple {26189#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 128 main_i)) (< 44 main_n)) (or (<= main_i 128) (<= main_n 44)))} assume a[i] != 23;i := i + 4; {26190#(and (or (and (<= 132 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)) (or (<= main_i 132) (<= main_n 44)))} is VALID [2019-01-31 14:38:32,524 INFO L273 TraceCheckUtils]: 66: Hoare triple {26190#(and (or (and (<= 132 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)) (or (<= main_i 132) (<= main_n 44)))} assume i <= n * 4; {26190#(and (or (and (<= 132 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)) (or (<= main_i 132) (<= main_n 44)))} is VALID [2019-01-31 14:38:32,525 INFO L273 TraceCheckUtils]: 67: Hoare triple {26190#(and (or (and (<= 132 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)) (or (<= main_i 132) (<= main_n 44)))} assume a[i] != 23;i := i + 4; {26191#(and (or (and (<= 136 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)) (or (<= main_i 136) (<= main_n 44)))} is VALID [2019-01-31 14:38:32,526 INFO L273 TraceCheckUtils]: 68: Hoare triple {26191#(and (or (and (<= 136 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)) (or (<= main_i 136) (<= main_n 44)))} assume i <= n * 4; {26191#(and (or (and (<= 136 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)) (or (<= main_i 136) (<= main_n 44)))} is VALID [2019-01-31 14:38:32,527 INFO L273 TraceCheckUtils]: 69: Hoare triple {26191#(and (or (and (<= 136 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)) (or (<= main_i 136) (<= main_n 44)))} assume a[i] != 23;i := i + 4; {26192#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 140 main_i)) (< 44 main_n)) (or (<= main_n 44) (<= main_i 140)))} is VALID [2019-01-31 14:38:32,528 INFO L273 TraceCheckUtils]: 70: Hoare triple {26192#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 140 main_i)) (< 44 main_n)) (or (<= main_n 44) (<= main_i 140)))} assume i <= n * 4; {26192#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 140 main_i)) (< 44 main_n)) (or (<= main_n 44) (<= main_i 140)))} is VALID [2019-01-31 14:38:32,529 INFO L273 TraceCheckUtils]: 71: Hoare triple {26192#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 140 main_i)) (< 44 main_n)) (or (<= main_n 44) (<= main_i 140)))} assume a[i] != 23;i := i + 4; {26193#(and (or (< 44 main_n) (and (<= 144 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 44) (<= main_i 144)))} is VALID [2019-01-31 14:38:32,530 INFO L273 TraceCheckUtils]: 72: Hoare triple {26193#(and (or (< 44 main_n) (and (<= 144 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 44) (<= main_i 144)))} assume i <= n * 4; {26193#(and (or (< 44 main_n) (and (<= 144 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 44) (<= main_i 144)))} is VALID [2019-01-31 14:38:32,531 INFO L273 TraceCheckUtils]: 73: Hoare triple {26193#(and (or (< 44 main_n) (and (<= 144 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 44) (<= main_i 144)))} assume a[i] != 23;i := i + 4; {26194#(and (or (< 44 main_n) (and (<= 148 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 44) (<= main_i 148)))} is VALID [2019-01-31 14:38:32,532 INFO L273 TraceCheckUtils]: 74: Hoare triple {26194#(and (or (< 44 main_n) (and (<= 148 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 44) (<= main_i 148)))} assume i <= n * 4; {26194#(and (or (< 44 main_n) (and (<= 148 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 44) (<= main_i 148)))} is VALID [2019-01-31 14:38:32,533 INFO L273 TraceCheckUtils]: 75: Hoare triple {26194#(and (or (< 44 main_n) (and (<= 148 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 44) (<= main_i 148)))} assume a[i] != 23;i := i + 4; {26195#(and (or (and (<= 152 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)) (or (<= main_n 44) (<= main_i 152)))} is VALID [2019-01-31 14:38:32,533 INFO L273 TraceCheckUtils]: 76: Hoare triple {26195#(and (or (and (<= 152 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)) (or (<= main_n 44) (<= main_i 152)))} assume i <= n * 4; {26195#(and (or (and (<= 152 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)) (or (<= main_n 44) (<= main_i 152)))} is VALID [2019-01-31 14:38:32,535 INFO L273 TraceCheckUtils]: 77: Hoare triple {26195#(and (or (and (<= 152 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)) (or (<= main_n 44) (<= main_i 152)))} assume a[i] != 23;i := i + 4; {26196#(and (or (<= main_i 156) (<= main_n 44)) (or (< 44 main_n) (and (<= 156 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:38:32,535 INFO L273 TraceCheckUtils]: 78: Hoare triple {26196#(and (or (<= main_i 156) (<= main_n 44)) (or (< 44 main_n) (and (<= 156 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {26196#(and (or (<= main_i 156) (<= main_n 44)) (or (< 44 main_n) (and (<= 156 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:38:32,536 INFO L273 TraceCheckUtils]: 79: Hoare triple {26196#(and (or (<= main_i 156) (<= main_n 44)) (or (< 44 main_n) (and (<= 156 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {26197#(and (or (<= main_n 44) (<= main_i 160)) (or (and (<= 160 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)))} is VALID [2019-01-31 14:38:32,537 INFO L273 TraceCheckUtils]: 80: Hoare triple {26197#(and (or (<= main_n 44) (<= main_i 160)) (or (and (<= 160 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)))} assume i <= n * 4; {26197#(and (or (<= main_n 44) (<= main_i 160)) (or (and (<= 160 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)))} is VALID [2019-01-31 14:38:32,538 INFO L273 TraceCheckUtils]: 81: Hoare triple {26197#(and (or (<= main_n 44) (<= main_i 160)) (or (and (<= 160 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)))} assume a[i] != 23;i := i + 4; {26198#(and (or (<= main_i 164) (<= main_n 44)) (or (and (<= 164 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)))} is VALID [2019-01-31 14:38:32,539 INFO L273 TraceCheckUtils]: 82: Hoare triple {26198#(and (or (<= main_i 164) (<= main_n 44)) (or (and (<= 164 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)))} assume i <= n * 4; {26198#(and (or (<= main_i 164) (<= main_n 44)) (or (and (<= 164 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)))} is VALID [2019-01-31 14:38:32,540 INFO L273 TraceCheckUtils]: 83: Hoare triple {26198#(and (or (<= main_i 164) (<= main_n 44)) (or (and (<= 164 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)))} assume a[i] != 23;i := i + 4; {26199#(and (or (and (<= 168 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)) (or (<= main_n 44) (<= main_i 168)))} is VALID [2019-01-31 14:38:32,541 INFO L273 TraceCheckUtils]: 84: Hoare triple {26199#(and (or (and (<= 168 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)) (or (<= main_n 44) (<= main_i 168)))} assume i <= n * 4; {26199#(and (or (and (<= 168 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)) (or (<= main_n 44) (<= main_i 168)))} is VALID [2019-01-31 14:38:32,542 INFO L273 TraceCheckUtils]: 85: Hoare triple {26199#(and (or (and (<= 168 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)) (or (<= main_n 44) (<= main_i 168)))} assume a[i] != 23;i := i + 4; {26200#(and (or (<= main_i 172) (<= main_n 44)) (or (and (<= 172 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)))} is VALID [2019-01-31 14:38:32,543 INFO L273 TraceCheckUtils]: 86: Hoare triple {26200#(and (or (<= main_i 172) (<= main_n 44)) (or (and (<= 172 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)))} assume i <= n * 4; {26200#(and (or (<= main_i 172) (<= main_n 44)) (or (and (<= 172 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)))} is VALID [2019-01-31 14:38:32,544 INFO L273 TraceCheckUtils]: 87: Hoare triple {26200#(and (or (<= main_i 172) (<= main_n 44)) (or (and (<= 172 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)))} assume a[i] != 23;i := i + 4; {26201#(and (or (<= main_i 176) (<= main_n 44)) (or (and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (<= (* 4 main_n) main_i)) (< 44 main_n)))} is VALID [2019-01-31 14:38:32,545 INFO L273 TraceCheckUtils]: 88: Hoare triple {26201#(and (or (<= main_i 176) (<= main_n 44)) (or (and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (<= (* 4 main_n) main_i)) (< 44 main_n)))} assume i <= n * 4; {26202#(and (<= main_i 176) (or (and (<= (* 4 main_n) main_i) (<= main_i (* 4 main_n)) (= 23 (select main_a main_i))) (< 44 main_n)))} is VALID [2019-01-31 14:38:32,546 INFO L273 TraceCheckUtils]: 89: Hoare triple {26202#(and (<= main_i 176) (or (and (<= (* 4 main_n) main_i) (<= main_i (* 4 main_n)) (= 23 (select main_a main_i))) (< 44 main_n)))} assume a[i] != 23;i := i + 4; {26203#(and (<= main_i 180) (<= 45 main_n))} is VALID [2019-01-31 14:38:32,547 INFO L273 TraceCheckUtils]: 90: Hoare triple {26203#(and (<= main_i 180) (<= 45 main_n))} assume !(i <= n * 4); {26156#false} is VALID [2019-01-31 14:38:32,587 INFO L134 CoverageAnalysis]: Checked inductivity of 1980 backedges. 0 proven. 1980 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-31 14:38:32,587 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-31 14:38:32,587 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-01-31 14:38:32,588 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-01-31 14:38:32,588 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-01-31 14:38:32,588 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-31 14:38:32,588 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 14:38:32,595 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2019-01-31 14:38:32,596 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST2 (IT: FPandBP) [2019-01-31 14:38:32,660 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 45 check-sat command(s) [2019-01-31 14:38:32,661 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-01-31 14:38:32,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-31 14:38:32,674 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-31 14:38:32,687 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 14:38:32,698 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-01-31 14:38:32,712 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-31 14:38:32,712 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2019-01-31 14:38:32,714 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-01-31 14:38:32,714 WARN L398 uantifierElimination]: Input elimination task: ∃ [v_main_a_48]. (and (= (store v_main_a_48 (* 4 main_n) 23) main_a) (= main_i 0)) [2019-01-31 14:38:32,714 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2019-01-31 14:38:36,366 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2019-01-31 14:38:36,368 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-01-31 14:38:36,374 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-31 14:38:36,375 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2019-01-31 14:38:36,377 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-01-31 14:38:36,377 WARN L398 uantifierElimination]: Input elimination task: ∃ [main_a]. (let ((.cse0 (* 4 main_n))) (and (<= main_i 180) (<= 176 .cse0) (= 23 (select main_a .cse0)) (not (= 23 (select main_a 176))))) [2019-01-31 14:38:36,377 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (let ((.cse0 (* 4 main_n))) (and (not (= 176 .cse0)) (<= main_i 180) (<= 176 .cse0))) [2019-01-31 14:38:36,433 INFO L273 TraceCheckUtils]: 0: Hoare triple {26155#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {26207#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:38:36,434 INFO L273 TraceCheckUtils]: 1: Hoare triple {26207#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {26211#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2019-01-31 14:38:36,434 INFO L273 TraceCheckUtils]: 2: Hoare triple {26211#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume i <= n * 4; {26211#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2019-01-31 14:38:36,435 INFO L273 TraceCheckUtils]: 3: Hoare triple {26211#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume a[i] != 23;i := i + 4; {26218#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:38:36,435 INFO L273 TraceCheckUtils]: 4: Hoare triple {26218#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {26218#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:38:36,436 INFO L273 TraceCheckUtils]: 5: Hoare triple {26218#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {26225#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2019-01-31 14:38:36,436 INFO L273 TraceCheckUtils]: 6: Hoare triple {26225#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume i <= n * 4; {26225#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2019-01-31 14:38:36,437 INFO L273 TraceCheckUtils]: 7: Hoare triple {26225#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume a[i] != 23;i := i + 4; {26232#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:38:36,438 INFO L273 TraceCheckUtils]: 8: Hoare triple {26232#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {26232#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:38:36,438 INFO L273 TraceCheckUtils]: 9: Hoare triple {26232#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {26239#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:38:36,439 INFO L273 TraceCheckUtils]: 10: Hoare triple {26239#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {26239#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:38:36,440 INFO L273 TraceCheckUtils]: 11: Hoare triple {26239#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {26246#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:38:36,440 INFO L273 TraceCheckUtils]: 12: Hoare triple {26246#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {26246#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:38:36,441 INFO L273 TraceCheckUtils]: 13: Hoare triple {26246#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {26253#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:38:36,442 INFO L273 TraceCheckUtils]: 14: Hoare triple {26253#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {26253#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:38:36,442 INFO L273 TraceCheckUtils]: 15: Hoare triple {26253#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {26260#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:38:36,443 INFO L273 TraceCheckUtils]: 16: Hoare triple {26260#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {26260#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:38:36,444 INFO L273 TraceCheckUtils]: 17: Hoare triple {26260#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {26267#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:38:36,444 INFO L273 TraceCheckUtils]: 18: Hoare triple {26267#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {26267#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:38:36,445 INFO L273 TraceCheckUtils]: 19: Hoare triple {26267#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {26274#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:38:36,446 INFO L273 TraceCheckUtils]: 20: Hoare triple {26274#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {26274#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:38:36,447 INFO L273 TraceCheckUtils]: 21: Hoare triple {26274#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {26281#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:38:36,447 INFO L273 TraceCheckUtils]: 22: Hoare triple {26281#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {26281#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:38:36,448 INFO L273 TraceCheckUtils]: 23: Hoare triple {26281#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {26288#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:38:36,449 INFO L273 TraceCheckUtils]: 24: Hoare triple {26288#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {26288#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:38:36,450 INFO L273 TraceCheckUtils]: 25: Hoare triple {26288#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {26295#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:38:36,450 INFO L273 TraceCheckUtils]: 26: Hoare triple {26295#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {26295#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:38:36,451 INFO L273 TraceCheckUtils]: 27: Hoare triple {26295#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {26302#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:38:36,452 INFO L273 TraceCheckUtils]: 28: Hoare triple {26302#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {26302#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:38:36,455 INFO L273 TraceCheckUtils]: 29: Hoare triple {26302#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {26309#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:38:36,456 INFO L273 TraceCheckUtils]: 30: Hoare triple {26309#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {26309#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:38:36,459 INFO L273 TraceCheckUtils]: 31: Hoare triple {26309#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {26316#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:38:36,459 INFO L273 TraceCheckUtils]: 32: Hoare triple {26316#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {26316#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:38:36,461 INFO L273 TraceCheckUtils]: 33: Hoare triple {26316#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {26323#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:38:36,464 INFO L273 TraceCheckUtils]: 34: Hoare triple {26323#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {26323#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:38:36,464 INFO L273 TraceCheckUtils]: 35: Hoare triple {26323#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {26330#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:38:36,467 INFO L273 TraceCheckUtils]: 36: Hoare triple {26330#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {26330#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:38:36,467 INFO L273 TraceCheckUtils]: 37: Hoare triple {26330#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {26337#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:38:36,469 INFO L273 TraceCheckUtils]: 38: Hoare triple {26337#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {26337#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:38:36,469 INFO L273 TraceCheckUtils]: 39: Hoare triple {26337#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {26344#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} is VALID [2019-01-31 14:38:36,471 INFO L273 TraceCheckUtils]: 40: Hoare triple {26344#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} assume i <= n * 4; {26344#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} is VALID [2019-01-31 14:38:36,471 INFO L273 TraceCheckUtils]: 41: Hoare triple {26344#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} assume a[i] != 23;i := i + 4; {26351#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:38:36,473 INFO L273 TraceCheckUtils]: 42: Hoare triple {26351#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {26351#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:38:36,475 INFO L273 TraceCheckUtils]: 43: Hoare triple {26351#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {26358#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:38:36,475 INFO L273 TraceCheckUtils]: 44: Hoare triple {26358#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {26358#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:38:36,477 INFO L273 TraceCheckUtils]: 45: Hoare triple {26358#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {26365#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:38:36,477 INFO L273 TraceCheckUtils]: 46: Hoare triple {26365#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {26365#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:38:36,479 INFO L273 TraceCheckUtils]: 47: Hoare triple {26365#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {26372#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:38:36,479 INFO L273 TraceCheckUtils]: 48: Hoare triple {26372#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {26372#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:38:36,481 INFO L273 TraceCheckUtils]: 49: Hoare triple {26372#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {26379#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:38:36,481 INFO L273 TraceCheckUtils]: 50: Hoare triple {26379#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {26379#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:38:36,483 INFO L273 TraceCheckUtils]: 51: Hoare triple {26379#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {26386#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:38:36,483 INFO L273 TraceCheckUtils]: 52: Hoare triple {26386#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {26386#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:38:36,486 INFO L273 TraceCheckUtils]: 53: Hoare triple {26386#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {26393#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:38:36,486 INFO L273 TraceCheckUtils]: 54: Hoare triple {26393#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {26393#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:38:36,488 INFO L273 TraceCheckUtils]: 55: Hoare triple {26393#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {26400#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:38:36,488 INFO L273 TraceCheckUtils]: 56: Hoare triple {26400#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {26400#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:38:36,490 INFO L273 TraceCheckUtils]: 57: Hoare triple {26400#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {26407#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:38:36,490 INFO L273 TraceCheckUtils]: 58: Hoare triple {26407#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {26407#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:38:36,492 INFO L273 TraceCheckUtils]: 59: Hoare triple {26407#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {26414#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:38:36,492 INFO L273 TraceCheckUtils]: 60: Hoare triple {26414#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {26414#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:38:36,495 INFO L273 TraceCheckUtils]: 61: Hoare triple {26414#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {26421#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:38:36,495 INFO L273 TraceCheckUtils]: 62: Hoare triple {26421#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {26421#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:38:36,497 INFO L273 TraceCheckUtils]: 63: Hoare triple {26421#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {26428#(and (= main_i 128) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:38:36,500 INFO L273 TraceCheckUtils]: 64: Hoare triple {26428#(and (= main_i 128) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {26428#(and (= main_i 128) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:38:36,500 INFO L273 TraceCheckUtils]: 65: Hoare triple {26428#(and (= main_i 128) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {26435#(and (= main_i 132) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:38:36,503 INFO L273 TraceCheckUtils]: 66: Hoare triple {26435#(and (= main_i 132) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {26435#(and (= main_i 132) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:38:36,503 INFO L273 TraceCheckUtils]: 67: Hoare triple {26435#(and (= main_i 132) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {26442#(and (= main_i 136) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:38:36,505 INFO L273 TraceCheckUtils]: 68: Hoare triple {26442#(and (= main_i 136) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {26442#(and (= main_i 136) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:38:36,505 INFO L273 TraceCheckUtils]: 69: Hoare triple {26442#(and (= main_i 136) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {26449#(and (= 23 (select main_a (* 4 main_n))) (= main_i 140))} is VALID [2019-01-31 14:38:36,508 INFO L273 TraceCheckUtils]: 70: Hoare triple {26449#(and (= 23 (select main_a (* 4 main_n))) (= main_i 140))} assume i <= n * 4; {26449#(and (= 23 (select main_a (* 4 main_n))) (= main_i 140))} is VALID [2019-01-31 14:38:36,508 INFO L273 TraceCheckUtils]: 71: Hoare triple {26449#(and (= 23 (select main_a (* 4 main_n))) (= main_i 140))} assume a[i] != 23;i := i + 4; {26456#(and (= main_i 144) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:38:36,510 INFO L273 TraceCheckUtils]: 72: Hoare triple {26456#(and (= main_i 144) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {26456#(and (= main_i 144) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:38:36,510 INFO L273 TraceCheckUtils]: 73: Hoare triple {26456#(and (= main_i 144) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {26463#(and (= main_i 148) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:38:36,512 INFO L273 TraceCheckUtils]: 74: Hoare triple {26463#(and (= main_i 148) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {26463#(and (= main_i 148) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:38:36,512 INFO L273 TraceCheckUtils]: 75: Hoare triple {26463#(and (= main_i 148) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {26470#(and (= main_i 152) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:38:36,515 INFO L273 TraceCheckUtils]: 76: Hoare triple {26470#(and (= main_i 152) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {26470#(and (= main_i 152) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:38:36,515 INFO L273 TraceCheckUtils]: 77: Hoare triple {26470#(and (= main_i 152) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {26477#(and (= main_i 156) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:38:36,517 INFO L273 TraceCheckUtils]: 78: Hoare triple {26477#(and (= main_i 156) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {26477#(and (= main_i 156) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:38:36,517 INFO L273 TraceCheckUtils]: 79: Hoare triple {26477#(and (= main_i 156) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {26484#(and (= main_i 160) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:38:36,519 INFO L273 TraceCheckUtils]: 80: Hoare triple {26484#(and (= main_i 160) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {26484#(and (= main_i 160) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:38:36,519 INFO L273 TraceCheckUtils]: 81: Hoare triple {26484#(and (= main_i 160) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {26491#(and (= 23 (select main_a (* 4 main_n))) (= main_i 164))} is VALID [2019-01-31 14:38:36,522 INFO L273 TraceCheckUtils]: 82: Hoare triple {26491#(and (= 23 (select main_a (* 4 main_n))) (= main_i 164))} assume i <= n * 4; {26491#(and (= 23 (select main_a (* 4 main_n))) (= main_i 164))} is VALID [2019-01-31 14:38:36,522 INFO L273 TraceCheckUtils]: 83: Hoare triple {26491#(and (= 23 (select main_a (* 4 main_n))) (= main_i 164))} assume a[i] != 23;i := i + 4; {26498#(and (= main_i 168) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:38:36,524 INFO L273 TraceCheckUtils]: 84: Hoare triple {26498#(and (= main_i 168) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {26498#(and (= main_i 168) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:38:36,524 INFO L273 TraceCheckUtils]: 85: Hoare triple {26498#(and (= main_i 168) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {26505#(and (= main_i 172) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:38:36,526 INFO L273 TraceCheckUtils]: 86: Hoare triple {26505#(and (= main_i 172) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {26505#(and (= main_i 172) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:38:36,526 INFO L273 TraceCheckUtils]: 87: Hoare triple {26505#(and (= main_i 172) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {26512#(and (= main_i 176) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:38:36,528 INFO L273 TraceCheckUtils]: 88: Hoare triple {26512#(and (= main_i 176) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {26516#(and (= main_i 176) (<= main_i (* 4 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:38:36,528 INFO L273 TraceCheckUtils]: 89: Hoare triple {26516#(and (= main_i 176) (<= main_i (* 4 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {26203#(and (<= main_i 180) (<= 45 main_n))} is VALID [2019-01-31 14:38:36,531 INFO L273 TraceCheckUtils]: 90: Hoare triple {26203#(and (<= main_i 180) (<= 45 main_n))} assume !(i <= n * 4); {26156#false} is VALID [2019-01-31 14:38:36,548 INFO L134 CoverageAnalysis]: Checked inductivity of 1980 backedges. 0 proven. 1980 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-31 14:38:36,549 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2019-01-31 14:38:42,672 INFO L273 TraceCheckUtils]: 90: Hoare triple {26523#(<= main_i (* 4 main_n))} assume !(i <= n * 4); {26156#false} is VALID [2019-01-31 14:38:42,673 INFO L273 TraceCheckUtils]: 89: Hoare triple {26527#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} assume a[i] != 23;i := i + 4; {26523#(<= main_i (* 4 main_n))} is VALID [2019-01-31 14:38:42,674 INFO L273 TraceCheckUtils]: 88: Hoare triple {26531#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} assume i <= n * 4; {26527#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} is VALID [2019-01-31 14:38:42,674 INFO L273 TraceCheckUtils]: 87: Hoare triple {26535#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume a[i] != 23;i := i + 4; {26531#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} is VALID [2019-01-31 14:38:42,675 INFO L273 TraceCheckUtils]: 86: Hoare triple {26535#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume i <= n * 4; {26535#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2019-01-31 14:38:42,675 INFO L273 TraceCheckUtils]: 85: Hoare triple {26542#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume a[i] != 23;i := i + 4; {26535#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2019-01-31 14:38:42,676 INFO L273 TraceCheckUtils]: 84: Hoare triple {26542#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume i <= n * 4; {26542#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2019-01-31 14:38:42,677 INFO L273 TraceCheckUtils]: 83: Hoare triple {26549#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume a[i] != 23;i := i + 4; {26542#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2019-01-31 14:38:42,678 INFO L273 TraceCheckUtils]: 82: Hoare triple {26549#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume i <= n * 4; {26549#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2019-01-31 14:38:42,679 INFO L273 TraceCheckUtils]: 81: Hoare triple {26556#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume a[i] != 23;i := i + 4; {26549#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2019-01-31 14:38:42,679 INFO L273 TraceCheckUtils]: 80: Hoare triple {26556#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume i <= n * 4; {26556#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2019-01-31 14:38:42,680 INFO L273 TraceCheckUtils]: 79: Hoare triple {26563#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {26556#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2019-01-31 14:38:42,681 INFO L273 TraceCheckUtils]: 78: Hoare triple {26563#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume i <= n * 4; {26563#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2019-01-31 14:38:42,682 INFO L273 TraceCheckUtils]: 77: Hoare triple {26570#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume a[i] != 23;i := i + 4; {26563#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2019-01-31 14:38:42,682 INFO L273 TraceCheckUtils]: 76: Hoare triple {26570#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume i <= n * 4; {26570#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2019-01-31 14:38:42,683 INFO L273 TraceCheckUtils]: 75: Hoare triple {26577#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {26570#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2019-01-31 14:38:42,684 INFO L273 TraceCheckUtils]: 74: Hoare triple {26577#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume i <= n * 4; {26577#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2019-01-31 14:38:42,685 INFO L273 TraceCheckUtils]: 73: Hoare triple {26584#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {26577#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2019-01-31 14:38:42,685 INFO L273 TraceCheckUtils]: 72: Hoare triple {26584#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume i <= n * 4; {26584#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2019-01-31 14:38:42,686 INFO L273 TraceCheckUtils]: 71: Hoare triple {26591#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {26584#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2019-01-31 14:38:42,687 INFO L273 TraceCheckUtils]: 70: Hoare triple {26591#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume i <= n * 4; {26591#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2019-01-31 14:38:42,688 INFO L273 TraceCheckUtils]: 69: Hoare triple {26598#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} assume a[i] != 23;i := i + 4; {26591#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2019-01-31 14:38:42,688 INFO L273 TraceCheckUtils]: 68: Hoare triple {26598#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} assume i <= n * 4; {26598#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} is VALID [2019-01-31 14:38:42,690 INFO L273 TraceCheckUtils]: 67: Hoare triple {26605#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {26598#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} is VALID [2019-01-31 14:38:42,690 INFO L273 TraceCheckUtils]: 66: Hoare triple {26605#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} assume i <= n * 4; {26605#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} is VALID [2019-01-31 14:38:42,691 INFO L273 TraceCheckUtils]: 65: Hoare triple {26612#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {26605#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} is VALID [2019-01-31 14:38:42,692 INFO L273 TraceCheckUtils]: 64: Hoare triple {26612#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} assume i <= n * 4; {26612#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} is VALID [2019-01-31 14:38:42,693 INFO L273 TraceCheckUtils]: 63: Hoare triple {26619#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} assume a[i] != 23;i := i + 4; {26612#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} is VALID [2019-01-31 14:38:42,693 INFO L273 TraceCheckUtils]: 62: Hoare triple {26619#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} assume i <= n * 4; {26619#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} is VALID [2019-01-31 14:38:42,694 INFO L273 TraceCheckUtils]: 61: Hoare triple {26626#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {26619#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} is VALID [2019-01-31 14:38:42,695 INFO L273 TraceCheckUtils]: 60: Hoare triple {26626#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} assume i <= n * 4; {26626#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} is VALID [2019-01-31 14:38:42,696 INFO L273 TraceCheckUtils]: 59: Hoare triple {26633#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} assume a[i] != 23;i := i + 4; {26626#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} is VALID [2019-01-31 14:38:42,696 INFO L273 TraceCheckUtils]: 58: Hoare triple {26633#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} assume i <= n * 4; {26633#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} is VALID [2019-01-31 14:38:42,697 INFO L273 TraceCheckUtils]: 57: Hoare triple {26640#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} assume a[i] != 23;i := i + 4; {26633#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} is VALID [2019-01-31 14:38:42,698 INFO L273 TraceCheckUtils]: 56: Hoare triple {26640#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} assume i <= n * 4; {26640#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} is VALID [2019-01-31 14:38:42,699 INFO L273 TraceCheckUtils]: 55: Hoare triple {26647#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} assume a[i] != 23;i := i + 4; {26640#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} is VALID [2019-01-31 14:38:42,699 INFO L273 TraceCheckUtils]: 54: Hoare triple {26647#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} assume i <= n * 4; {26647#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} is VALID [2019-01-31 14:38:42,700 INFO L273 TraceCheckUtils]: 53: Hoare triple {26654#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} assume a[i] != 23;i := i + 4; {26647#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} is VALID [2019-01-31 14:38:42,701 INFO L273 TraceCheckUtils]: 52: Hoare triple {26654#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} assume i <= n * 4; {26654#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} is VALID [2019-01-31 14:38:42,702 INFO L273 TraceCheckUtils]: 51: Hoare triple {26661#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} assume a[i] != 23;i := i + 4; {26654#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} is VALID [2019-01-31 14:38:42,702 INFO L273 TraceCheckUtils]: 50: Hoare triple {26661#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} assume i <= n * 4; {26661#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} is VALID [2019-01-31 14:38:42,703 INFO L273 TraceCheckUtils]: 49: Hoare triple {26668#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} assume a[i] != 23;i := i + 4; {26661#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} is VALID [2019-01-31 14:38:42,704 INFO L273 TraceCheckUtils]: 48: Hoare triple {26668#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} assume i <= n * 4; {26668#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} is VALID [2019-01-31 14:38:42,705 INFO L273 TraceCheckUtils]: 47: Hoare triple {26675#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {26668#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} is VALID [2019-01-31 14:38:42,706 INFO L273 TraceCheckUtils]: 46: Hoare triple {26675#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} assume i <= n * 4; {26675#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} is VALID [2019-01-31 14:38:42,707 INFO L273 TraceCheckUtils]: 45: Hoare triple {26682#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {26675#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} is VALID [2019-01-31 14:38:42,707 INFO L273 TraceCheckUtils]: 44: Hoare triple {26682#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} assume i <= n * 4; {26682#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} is VALID [2019-01-31 14:38:42,708 INFO L273 TraceCheckUtils]: 43: Hoare triple {26689#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {26682#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} is VALID [2019-01-31 14:38:42,709 INFO L273 TraceCheckUtils]: 42: Hoare triple {26689#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} assume i <= n * 4; {26689#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} is VALID [2019-01-31 14:38:42,710 INFO L273 TraceCheckUtils]: 41: Hoare triple {26696#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} assume a[i] != 23;i := i + 4; {26689#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} is VALID [2019-01-31 14:38:42,710 INFO L273 TraceCheckUtils]: 40: Hoare triple {26696#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} assume i <= n * 4; {26696#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} is VALID [2019-01-31 14:38:42,711 INFO L273 TraceCheckUtils]: 39: Hoare triple {26703#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {26696#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} is VALID [2019-01-31 14:38:42,712 INFO L273 TraceCheckUtils]: 38: Hoare triple {26703#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} assume i <= n * 4; {26703#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} is VALID [2019-01-31 14:38:42,713 INFO L273 TraceCheckUtils]: 37: Hoare triple {26710#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} assume a[i] != 23;i := i + 4; {26703#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} is VALID [2019-01-31 14:38:42,713 INFO L273 TraceCheckUtils]: 36: Hoare triple {26710#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} assume i <= n * 4; {26710#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} is VALID [2019-01-31 14:38:42,714 INFO L273 TraceCheckUtils]: 35: Hoare triple {26717#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} assume a[i] != 23;i := i + 4; {26710#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} is VALID [2019-01-31 14:38:42,715 INFO L273 TraceCheckUtils]: 34: Hoare triple {26717#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} assume i <= n * 4; {26717#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} is VALID [2019-01-31 14:38:42,716 INFO L273 TraceCheckUtils]: 33: Hoare triple {26724#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} assume a[i] != 23;i := i + 4; {26717#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} is VALID [2019-01-31 14:38:42,716 INFO L273 TraceCheckUtils]: 32: Hoare triple {26724#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} assume i <= n * 4; {26724#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} is VALID [2019-01-31 14:38:42,718 INFO L273 TraceCheckUtils]: 31: Hoare triple {26731#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {26724#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} is VALID [2019-01-31 14:38:42,718 INFO L273 TraceCheckUtils]: 30: Hoare triple {26731#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} assume i <= n * 4; {26731#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} is VALID [2019-01-31 14:38:42,719 INFO L273 TraceCheckUtils]: 29: Hoare triple {26738#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {26731#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} is VALID [2019-01-31 14:38:42,720 INFO L273 TraceCheckUtils]: 28: Hoare triple {26738#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} assume i <= n * 4; {26738#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} is VALID [2019-01-31 14:38:42,721 INFO L273 TraceCheckUtils]: 27: Hoare triple {26745#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} assume a[i] != 23;i := i + 4; {26738#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} is VALID [2019-01-31 14:38:42,721 INFO L273 TraceCheckUtils]: 26: Hoare triple {26745#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} assume i <= n * 4; {26745#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} is VALID [2019-01-31 14:38:42,722 INFO L273 TraceCheckUtils]: 25: Hoare triple {26752#(or (< (* 4 main_n) (+ main_i 128)) (= (select main_a (+ main_i 128)) 23) (< (+ main_i 131) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {26745#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} is VALID [2019-01-31 14:38:42,723 INFO L273 TraceCheckUtils]: 24: Hoare triple {26752#(or (< (* 4 main_n) (+ main_i 128)) (= (select main_a (+ main_i 128)) 23) (< (+ main_i 131) (* 4 main_n)))} assume i <= n * 4; {26752#(or (< (* 4 main_n) (+ main_i 128)) (= (select main_a (+ main_i 128)) 23) (< (+ main_i 131) (* 4 main_n)))} is VALID [2019-01-31 14:38:42,724 INFO L273 TraceCheckUtils]: 23: Hoare triple {26759#(or (< (* 4 main_n) (+ main_i 132)) (< (+ main_i 135) (* 4 main_n)) (= (select main_a (+ main_i 132)) 23))} assume a[i] != 23;i := i + 4; {26752#(or (< (* 4 main_n) (+ main_i 128)) (= (select main_a (+ main_i 128)) 23) (< (+ main_i 131) (* 4 main_n)))} is VALID [2019-01-31 14:38:42,724 INFO L273 TraceCheckUtils]: 22: Hoare triple {26759#(or (< (* 4 main_n) (+ main_i 132)) (< (+ main_i 135) (* 4 main_n)) (= (select main_a (+ main_i 132)) 23))} assume i <= n * 4; {26759#(or (< (* 4 main_n) (+ main_i 132)) (< (+ main_i 135) (* 4 main_n)) (= (select main_a (+ main_i 132)) 23))} is VALID [2019-01-31 14:38:42,725 INFO L273 TraceCheckUtils]: 21: Hoare triple {26766#(or (< (+ main_i 139) (* 4 main_n)) (= (select main_a (+ main_i 136)) 23) (< (* 4 main_n) (+ main_i 136)))} assume a[i] != 23;i := i + 4; {26759#(or (< (* 4 main_n) (+ main_i 132)) (< (+ main_i 135) (* 4 main_n)) (= (select main_a (+ main_i 132)) 23))} is VALID [2019-01-31 14:38:42,726 INFO L273 TraceCheckUtils]: 20: Hoare triple {26766#(or (< (+ main_i 139) (* 4 main_n)) (= (select main_a (+ main_i 136)) 23) (< (* 4 main_n) (+ main_i 136)))} assume i <= n * 4; {26766#(or (< (+ main_i 139) (* 4 main_n)) (= (select main_a (+ main_i 136)) 23) (< (* 4 main_n) (+ main_i 136)))} is VALID [2019-01-31 14:38:42,727 INFO L273 TraceCheckUtils]: 19: Hoare triple {26773#(or (< (* 4 main_n) (+ main_i 140)) (< (+ main_i 143) (* 4 main_n)) (= (select main_a (+ main_i 140)) 23))} assume a[i] != 23;i := i + 4; {26766#(or (< (+ main_i 139) (* 4 main_n)) (= (select main_a (+ main_i 136)) 23) (< (* 4 main_n) (+ main_i 136)))} is VALID [2019-01-31 14:38:42,727 INFO L273 TraceCheckUtils]: 18: Hoare triple {26773#(or (< (* 4 main_n) (+ main_i 140)) (< (+ main_i 143) (* 4 main_n)) (= (select main_a (+ main_i 140)) 23))} assume i <= n * 4; {26773#(or (< (* 4 main_n) (+ main_i 140)) (< (+ main_i 143) (* 4 main_n)) (= (select main_a (+ main_i 140)) 23))} is VALID [2019-01-31 14:38:42,728 INFO L273 TraceCheckUtils]: 17: Hoare triple {26780#(or (= (select main_a (+ main_i 144)) 23) (< (+ main_i 147) (* 4 main_n)) (< (* 4 main_n) (+ main_i 144)))} assume a[i] != 23;i := i + 4; {26773#(or (< (* 4 main_n) (+ main_i 140)) (< (+ main_i 143) (* 4 main_n)) (= (select main_a (+ main_i 140)) 23))} is VALID [2019-01-31 14:38:42,729 INFO L273 TraceCheckUtils]: 16: Hoare triple {26780#(or (= (select main_a (+ main_i 144)) 23) (< (+ main_i 147) (* 4 main_n)) (< (* 4 main_n) (+ main_i 144)))} assume i <= n * 4; {26780#(or (= (select main_a (+ main_i 144)) 23) (< (+ main_i 147) (* 4 main_n)) (< (* 4 main_n) (+ main_i 144)))} is VALID [2019-01-31 14:38:42,730 INFO L273 TraceCheckUtils]: 15: Hoare triple {26787#(or (< (+ main_i 151) (* 4 main_n)) (< (* 4 main_n) (+ main_i 148)) (= (select main_a (+ main_i 148)) 23))} assume a[i] != 23;i := i + 4; {26780#(or (= (select main_a (+ main_i 144)) 23) (< (+ main_i 147) (* 4 main_n)) (< (* 4 main_n) (+ main_i 144)))} is VALID [2019-01-31 14:38:42,730 INFO L273 TraceCheckUtils]: 14: Hoare triple {26787#(or (< (+ main_i 151) (* 4 main_n)) (< (* 4 main_n) (+ main_i 148)) (= (select main_a (+ main_i 148)) 23))} assume i <= n * 4; {26787#(or (< (+ main_i 151) (* 4 main_n)) (< (* 4 main_n) (+ main_i 148)) (= (select main_a (+ main_i 148)) 23))} is VALID [2019-01-31 14:38:42,732 INFO L273 TraceCheckUtils]: 13: Hoare triple {26794#(or (= 23 (select main_a (+ main_i 152))) (< (+ main_i 155) (* 4 main_n)) (< (* 4 main_n) (+ main_i 152)))} assume a[i] != 23;i := i + 4; {26787#(or (< (+ main_i 151) (* 4 main_n)) (< (* 4 main_n) (+ main_i 148)) (= (select main_a (+ main_i 148)) 23))} is VALID [2019-01-31 14:38:42,732 INFO L273 TraceCheckUtils]: 12: Hoare triple {26794#(or (= 23 (select main_a (+ main_i 152))) (< (+ main_i 155) (* 4 main_n)) (< (* 4 main_n) (+ main_i 152)))} assume i <= n * 4; {26794#(or (= 23 (select main_a (+ main_i 152))) (< (+ main_i 155) (* 4 main_n)) (< (* 4 main_n) (+ main_i 152)))} is VALID [2019-01-31 14:38:42,733 INFO L273 TraceCheckUtils]: 11: Hoare triple {26801#(or (< (+ main_i 159) (* 4 main_n)) (= (select main_a (+ main_i 156)) 23) (< (* 4 main_n) (+ main_i 156)))} assume a[i] != 23;i := i + 4; {26794#(or (= 23 (select main_a (+ main_i 152))) (< (+ main_i 155) (* 4 main_n)) (< (* 4 main_n) (+ main_i 152)))} is VALID [2019-01-31 14:38:42,734 INFO L273 TraceCheckUtils]: 10: Hoare triple {26801#(or (< (+ main_i 159) (* 4 main_n)) (= (select main_a (+ main_i 156)) 23) (< (* 4 main_n) (+ main_i 156)))} assume i <= n * 4; {26801#(or (< (+ main_i 159) (* 4 main_n)) (= (select main_a (+ main_i 156)) 23) (< (* 4 main_n) (+ main_i 156)))} is VALID [2019-01-31 14:38:42,735 INFO L273 TraceCheckUtils]: 9: Hoare triple {26808#(or (< (+ main_i 163) (* 4 main_n)) (= (select main_a (+ main_i 160)) 23) (< (* 4 main_n) (+ main_i 160)))} assume a[i] != 23;i := i + 4; {26801#(or (< (+ main_i 159) (* 4 main_n)) (= (select main_a (+ main_i 156)) 23) (< (* 4 main_n) (+ main_i 156)))} is VALID [2019-01-31 14:38:42,735 INFO L273 TraceCheckUtils]: 8: Hoare triple {26808#(or (< (+ main_i 163) (* 4 main_n)) (= (select main_a (+ main_i 160)) 23) (< (* 4 main_n) (+ main_i 160)))} assume i <= n * 4; {26808#(or (< (+ main_i 163) (* 4 main_n)) (= (select main_a (+ main_i 160)) 23) (< (* 4 main_n) (+ main_i 160)))} is VALID [2019-01-31 14:38:42,736 INFO L273 TraceCheckUtils]: 7: Hoare triple {26815#(or (< (* 4 main_n) (+ main_i 164)) (< (+ main_i 167) (* 4 main_n)) (= (select main_a (+ main_i 164)) 23))} assume a[i] != 23;i := i + 4; {26808#(or (< (+ main_i 163) (* 4 main_n)) (= (select main_a (+ main_i 160)) 23) (< (* 4 main_n) (+ main_i 160)))} is VALID [2019-01-31 14:38:42,737 INFO L273 TraceCheckUtils]: 6: Hoare triple {26815#(or (< (* 4 main_n) (+ main_i 164)) (< (+ main_i 167) (* 4 main_n)) (= (select main_a (+ main_i 164)) 23))} assume i <= n * 4; {26815#(or (< (* 4 main_n) (+ main_i 164)) (< (+ main_i 167) (* 4 main_n)) (= (select main_a (+ main_i 164)) 23))} is VALID [2019-01-31 14:38:42,738 INFO L273 TraceCheckUtils]: 5: Hoare triple {26822#(or (= (select main_a (+ main_i 168)) 23) (< (* 4 main_n) (+ main_i 168)) (< (+ main_i 171) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {26815#(or (< (* 4 main_n) (+ main_i 164)) (< (+ main_i 167) (* 4 main_n)) (= (select main_a (+ main_i 164)) 23))} is VALID [2019-01-31 14:38:42,738 INFO L273 TraceCheckUtils]: 4: Hoare triple {26822#(or (= (select main_a (+ main_i 168)) 23) (< (* 4 main_n) (+ main_i 168)) (< (+ main_i 171) (* 4 main_n)))} assume i <= n * 4; {26822#(or (= (select main_a (+ main_i 168)) 23) (< (* 4 main_n) (+ main_i 168)) (< (+ main_i 171) (* 4 main_n)))} is VALID [2019-01-31 14:38:42,739 INFO L273 TraceCheckUtils]: 3: Hoare triple {26829#(or (< (* 4 main_n) (+ main_i 172)) (= (select main_a (+ main_i 172)) 23) (< (+ main_i 175) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {26822#(or (= (select main_a (+ main_i 168)) 23) (< (* 4 main_n) (+ main_i 168)) (< (+ main_i 171) (* 4 main_n)))} is VALID [2019-01-31 14:38:42,740 INFO L273 TraceCheckUtils]: 2: Hoare triple {26829#(or (< (* 4 main_n) (+ main_i 172)) (= (select main_a (+ main_i 172)) 23) (< (+ main_i 175) (* 4 main_n)))} assume i <= n * 4; {26829#(or (< (* 4 main_n) (+ main_i 172)) (= (select main_a (+ main_i 172)) 23) (< (+ main_i 175) (* 4 main_n)))} is VALID [2019-01-31 14:38:42,741 INFO L273 TraceCheckUtils]: 1: Hoare triple {26836#(or (= (select main_a (+ main_i 176)) 23) (< (+ main_i 179) (* 4 main_n)) (< (* 4 main_n) (+ main_i 176)))} assume a[i] != 23;i := i + 4; {26829#(or (< (* 4 main_n) (+ main_i 172)) (= (select main_a (+ main_i 172)) 23) (< (+ main_i 175) (* 4 main_n)))} is VALID [2019-01-31 14:38:42,742 INFO L273 TraceCheckUtils]: 0: Hoare triple {26155#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {26836#(or (= (select main_a (+ main_i 176)) 23) (< (+ main_i 179) (* 4 main_n)) (< (* 4 main_n) (+ main_i 176)))} is VALID [2019-01-31 14:38:42,772 INFO L134 CoverageAnalysis]: Checked inductivity of 1980 backedges. 0 proven. 1980 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-31 14:38:42,790 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-01-31 14:38:42,791 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [47, 47, 47] total 140 [2019-01-31 14:38:42,791 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-01-31 14:38:42,791 INFO L78 Accepts]: Start accepts. Automaton has 95 states. Word has length 91 [2019-01-31 14:38:42,791 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-01-31 14:38:42,791 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 95 states. [2019-01-31 14:38:43,006 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 181 edges. 181 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-01-31 14:38:43,006 INFO L459 AbstractCegarLoop]: Interpolant automaton has 95 states [2019-01-31 14:38:43,006 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 95 interpolants. [2019-01-31 14:38:43,007 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2452, Invalid=17570, Unknown=0, NotChecked=0, Total=20022 [2019-01-31 14:38:43,007 INFO L87 Difference]: Start difference. First operand 92 states and 92 transitions. Second operand 95 states. [2019-01-31 14:38:56,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 14:38:56,469 INFO L93 Difference]: Finished difference Result 96 states and 96 transitions. [2019-01-31 14:38:56,470 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2019-01-31 14:38:56,470 INFO L78 Accepts]: Start accepts. Automaton has 95 states. Word has length 91 [2019-01-31 14:38:56,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-31 14:38:56,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 95 states. [2019-01-31 14:38:56,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 96 transitions. [2019-01-31 14:38:56,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 95 states. [2019-01-31 14:38:56,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 96 transitions. [2019-01-31 14:38:56,472 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 49 states and 96 transitions. [2019-01-31 14:38:56,573 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 96 edges. 96 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-01-31 14:38:56,574 INFO L225 Difference]: With dead ends: 96 [2019-01-31 14:38:56,574 INFO L226 Difference]: Without dead ends: 95 [2019-01-31 14:38:56,575 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 227 GetRequests, 86 SyntacticMatches, 1 SemanticMatches, 140 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4508 ImplicationChecksByTransitivity, 11.7s TimeCoverageRelationStatistics Valid=2452, Invalid=17570, Unknown=0, NotChecked=0, Total=20022 [2019-01-31 14:38:56,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2019-01-31 14:38:56,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 94. [2019-01-31 14:38:56,660 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-01-31 14:38:56,660 INFO L82 GeneralOperation]: Start isEquivalent. First operand 95 states. Second operand 94 states. [2019-01-31 14:38:56,660 INFO L74 IsIncluded]: Start isIncluded. First operand 95 states. Second operand 94 states. [2019-01-31 14:38:56,660 INFO L87 Difference]: Start difference. First operand 95 states. Second operand 94 states. [2019-01-31 14:38:56,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 14:38:56,661 INFO L93 Difference]: Finished difference Result 95 states and 95 transitions. [2019-01-31 14:38:56,662 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 95 transitions. [2019-01-31 14:38:56,662 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-31 14:38:56,662 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-01-31 14:38:56,662 INFO L74 IsIncluded]: Start isIncluded. First operand 94 states. Second operand 95 states. [2019-01-31 14:38:56,662 INFO L87 Difference]: Start difference. First operand 94 states. Second operand 95 states. [2019-01-31 14:38:56,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 14:38:56,663 INFO L93 Difference]: Finished difference Result 95 states and 95 transitions. [2019-01-31 14:38:56,663 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 95 transitions. [2019-01-31 14:38:56,663 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-31 14:38:56,663 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-01-31 14:38:56,663 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-01-31 14:38:56,664 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-01-31 14:38:56,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 94 states. [2019-01-31 14:38:56,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 94 transitions. [2019-01-31 14:38:56,665 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 94 transitions. Word has length 91 [2019-01-31 14:38:56,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-31 14:38:56,665 INFO L480 AbstractCegarLoop]: Abstraction has 94 states and 94 transitions. [2019-01-31 14:38:56,665 INFO L481 AbstractCegarLoop]: Interpolant automaton has 95 states. [2019-01-31 14:38:56,665 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 94 transitions. [2019-01-31 14:38:56,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2019-01-31 14:38:56,666 INFO L394 BasicCegarLoop]: Found error trace [2019-01-31 14:38:56,666 INFO L402 BasicCegarLoop]: trace histogram [46, 45, 1, 1] [2019-01-31 14:38:56,666 INFO L423 AbstractCegarLoop]: === Iteration 46 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-01-31 14:38:56,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-31 14:38:56,666 INFO L82 PathProgramCache]: Analyzing trace with hash 1904524666, now seen corresponding path program 45 times [2019-01-31 14:38:56,667 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-01-31 14:38:56,667 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-31 14:38:56,667 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-01-31 14:38:56,667 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-31 14:38:56,667 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-01-31 14:38:56,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-31 14:38:57,118 WARN L181 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 18 [2019-01-31 14:38:59,908 INFO L273 TraceCheckUtils]: 0: Hoare triple {27312#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {27314#(and (or (<= main_n 45) (<= main_i 0)) (or (< 45 main_n) (and (<= 0 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:38:59,908 INFO L273 TraceCheckUtils]: 1: Hoare triple {27314#(and (or (<= main_n 45) (<= main_i 0)) (or (< 45 main_n) (and (<= 0 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {27315#(and (or (<= main_n 45) (<= main_i 4)) (or (< 45 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i))))} is VALID [2019-01-31 14:38:59,909 INFO L273 TraceCheckUtils]: 2: Hoare triple {27315#(and (or (<= main_n 45) (<= main_i 4)) (or (< 45 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i))))} assume i <= n * 4; {27315#(and (or (<= main_n 45) (<= main_i 4)) (or (< 45 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i))))} is VALID [2019-01-31 14:38:59,910 INFO L273 TraceCheckUtils]: 3: Hoare triple {27315#(and (or (<= main_n 45) (<= main_i 4)) (or (< 45 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i))))} assume a[i] != 23;i := i + 4; {27316#(and (or (<= main_n 45) (<= main_i 8)) (or (< 45 main_n) (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:38:59,910 INFO L273 TraceCheckUtils]: 4: Hoare triple {27316#(and (or (<= main_n 45) (<= main_i 8)) (or (< 45 main_n) (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {27316#(and (or (<= main_n 45) (<= main_i 8)) (or (< 45 main_n) (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:38:59,911 INFO L273 TraceCheckUtils]: 5: Hoare triple {27316#(and (or (<= main_n 45) (<= main_i 8)) (or (< 45 main_n) (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {27317#(and (or (< 45 main_n) (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 45) (<= main_i 12)))} is VALID [2019-01-31 14:38:59,912 INFO L273 TraceCheckUtils]: 6: Hoare triple {27317#(and (or (< 45 main_n) (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 45) (<= main_i 12)))} assume i <= n * 4; {27317#(and (or (< 45 main_n) (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 45) (<= main_i 12)))} is VALID [2019-01-31 14:38:59,913 INFO L273 TraceCheckUtils]: 7: Hoare triple {27317#(and (or (< 45 main_n) (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 45) (<= main_i 12)))} assume a[i] != 23;i := i + 4; {27318#(and (or (< 45 main_n) (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 45) (<= main_i 16)))} is VALID [2019-01-31 14:38:59,914 INFO L273 TraceCheckUtils]: 8: Hoare triple {27318#(and (or (< 45 main_n) (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 45) (<= main_i 16)))} assume i <= n * 4; {27318#(and (or (< 45 main_n) (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 45) (<= main_i 16)))} is VALID [2019-01-31 14:38:59,915 INFO L273 TraceCheckUtils]: 9: Hoare triple {27318#(and (or (< 45 main_n) (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 45) (<= main_i 16)))} assume a[i] != 23;i := i + 4; {27319#(and (or (< 45 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 45) (<= main_i 20)))} is VALID [2019-01-31 14:38:59,916 INFO L273 TraceCheckUtils]: 10: Hoare triple {27319#(and (or (< 45 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 45) (<= main_i 20)))} assume i <= n * 4; {27319#(and (or (< 45 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 45) (<= main_i 20)))} is VALID [2019-01-31 14:38:59,917 INFO L273 TraceCheckUtils]: 11: Hoare triple {27319#(and (or (< 45 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 45) (<= main_i 20)))} assume a[i] != 23;i := i + 4; {27320#(and (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 45 main_n)) (or (<= main_n 45) (<= main_i 24)))} is VALID [2019-01-31 14:38:59,917 INFO L273 TraceCheckUtils]: 12: Hoare triple {27320#(and (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 45 main_n)) (or (<= main_n 45) (<= main_i 24)))} assume i <= n * 4; {27320#(and (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 45 main_n)) (or (<= main_n 45) (<= main_i 24)))} is VALID [2019-01-31 14:38:59,919 INFO L273 TraceCheckUtils]: 13: Hoare triple {27320#(and (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 45 main_n)) (or (<= main_n 45) (<= main_i 24)))} assume a[i] != 23;i := i + 4; {27321#(and (or (<= main_n 45) (<= main_i 28)) (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 45 main_n)))} is VALID [2019-01-31 14:38:59,919 INFO L273 TraceCheckUtils]: 14: Hoare triple {27321#(and (or (<= main_n 45) (<= main_i 28)) (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 45 main_n)))} assume i <= n * 4; {27321#(and (or (<= main_n 45) (<= main_i 28)) (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 45 main_n)))} is VALID [2019-01-31 14:38:59,920 INFO L273 TraceCheckUtils]: 15: Hoare triple {27321#(and (or (<= main_n 45) (<= main_i 28)) (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 45 main_n)))} assume a[i] != 23;i := i + 4; {27322#(and (or (<= main_i 32) (<= main_n 45)) (or (< 45 main_n) (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:38:59,921 INFO L273 TraceCheckUtils]: 16: Hoare triple {27322#(and (or (<= main_i 32) (<= main_n 45)) (or (< 45 main_n) (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {27322#(and (or (<= main_i 32) (<= main_n 45)) (or (< 45 main_n) (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:38:59,922 INFO L273 TraceCheckUtils]: 17: Hoare triple {27322#(and (or (<= main_i 32) (<= main_n 45)) (or (< 45 main_n) (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {27323#(and (or (<= main_i 36) (<= main_n 45)) (or (< 45 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i))))} is VALID [2019-01-31 14:38:59,923 INFO L273 TraceCheckUtils]: 18: Hoare triple {27323#(and (or (<= main_i 36) (<= main_n 45)) (or (< 45 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i))))} assume i <= n * 4; {27323#(and (or (<= main_i 36) (<= main_n 45)) (or (< 45 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i))))} is VALID [2019-01-31 14:38:59,924 INFO L273 TraceCheckUtils]: 19: Hoare triple {27323#(and (or (<= main_i 36) (<= main_n 45)) (or (< 45 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i))))} assume a[i] != 23;i := i + 4; {27324#(and (or (< 45 main_n) (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 45) (<= main_i 40)))} is VALID [2019-01-31 14:38:59,925 INFO L273 TraceCheckUtils]: 20: Hoare triple {27324#(and (or (< 45 main_n) (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 45) (<= main_i 40)))} assume i <= n * 4; {27324#(and (or (< 45 main_n) (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 45) (<= main_i 40)))} is VALID [2019-01-31 14:38:59,926 INFO L273 TraceCheckUtils]: 21: Hoare triple {27324#(and (or (< 45 main_n) (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 45) (<= main_i 40)))} assume a[i] != 23;i := i + 4; {27325#(and (or (<= main_n 45) (<= main_i 44)) (or (< 45 main_n) (and (<= 44 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:38:59,927 INFO L273 TraceCheckUtils]: 22: Hoare triple {27325#(and (or (<= main_n 45) (<= main_i 44)) (or (< 45 main_n) (and (<= 44 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {27325#(and (or (<= main_n 45) (<= main_i 44)) (or (< 45 main_n) (and (<= 44 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:38:59,928 INFO L273 TraceCheckUtils]: 23: Hoare triple {27325#(and (or (<= main_n 45) (<= main_i 44)) (or (< 45 main_n) (and (<= 44 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {27326#(and (or (and (<= 48 main_i) (= 23 (select main_a (* 4 main_n)))) (< 45 main_n)) (or (<= main_n 45) (<= main_i 48)))} is VALID [2019-01-31 14:38:59,929 INFO L273 TraceCheckUtils]: 24: Hoare triple {27326#(and (or (and (<= 48 main_i) (= 23 (select main_a (* 4 main_n)))) (< 45 main_n)) (or (<= main_n 45) (<= main_i 48)))} assume i <= n * 4; {27326#(and (or (and (<= 48 main_i) (= 23 (select main_a (* 4 main_n)))) (< 45 main_n)) (or (<= main_n 45) (<= main_i 48)))} is VALID [2019-01-31 14:38:59,930 INFO L273 TraceCheckUtils]: 25: Hoare triple {27326#(and (or (and (<= 48 main_i) (= 23 (select main_a (* 4 main_n)))) (< 45 main_n)) (or (<= main_n 45) (<= main_i 48)))} assume a[i] != 23;i := i + 4; {27327#(and (or (< 45 main_n) (and (<= 52 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 52) (<= main_n 45)))} is VALID [2019-01-31 14:38:59,930 INFO L273 TraceCheckUtils]: 26: Hoare triple {27327#(and (or (< 45 main_n) (and (<= 52 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 52) (<= main_n 45)))} assume i <= n * 4; {27327#(and (or (< 45 main_n) (and (<= 52 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 52) (<= main_n 45)))} is VALID [2019-01-31 14:38:59,931 INFO L273 TraceCheckUtils]: 27: Hoare triple {27327#(and (or (< 45 main_n) (and (<= 52 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 52) (<= main_n 45)))} assume a[i] != 23;i := i + 4; {27328#(and (or (< 45 main_n) (and (<= 56 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 45) (<= main_i 56)))} is VALID [2019-01-31 14:38:59,932 INFO L273 TraceCheckUtils]: 28: Hoare triple {27328#(and (or (< 45 main_n) (and (<= 56 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 45) (<= main_i 56)))} assume i <= n * 4; {27328#(and (or (< 45 main_n) (and (<= 56 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 45) (<= main_i 56)))} is VALID [2019-01-31 14:38:59,933 INFO L273 TraceCheckUtils]: 29: Hoare triple {27328#(and (or (< 45 main_n) (and (<= 56 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 45) (<= main_i 56)))} assume a[i] != 23;i := i + 4; {27329#(and (or (<= main_n 45) (<= main_i 60)) (or (< 45 main_n) (and (<= 60 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:38:59,934 INFO L273 TraceCheckUtils]: 30: Hoare triple {27329#(and (or (<= main_n 45) (<= main_i 60)) (or (< 45 main_n) (and (<= 60 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {27329#(and (or (<= main_n 45) (<= main_i 60)) (or (< 45 main_n) (and (<= 60 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:38:59,935 INFO L273 TraceCheckUtils]: 31: Hoare triple {27329#(and (or (<= main_n 45) (<= main_i 60)) (or (< 45 main_n) (and (<= 60 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {27330#(and (or (<= main_n 45) (<= main_i 64)) (or (< 45 main_n) (and (<= 64 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:38:59,936 INFO L273 TraceCheckUtils]: 32: Hoare triple {27330#(and (or (<= main_n 45) (<= main_i 64)) (or (< 45 main_n) (and (<= 64 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {27330#(and (or (<= main_n 45) (<= main_i 64)) (or (< 45 main_n) (and (<= 64 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:38:59,937 INFO L273 TraceCheckUtils]: 33: Hoare triple {27330#(and (or (<= main_n 45) (<= main_i 64)) (or (< 45 main_n) (and (<= 64 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {27331#(and (or (< 45 main_n) (and (<= 68 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 45) (<= main_i 68)))} is VALID [2019-01-31 14:38:59,938 INFO L273 TraceCheckUtils]: 34: Hoare triple {27331#(and (or (< 45 main_n) (and (<= 68 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 45) (<= main_i 68)))} assume i <= n * 4; {27331#(and (or (< 45 main_n) (and (<= 68 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 45) (<= main_i 68)))} is VALID [2019-01-31 14:38:59,939 INFO L273 TraceCheckUtils]: 35: Hoare triple {27331#(and (or (< 45 main_n) (and (<= 68 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 45) (<= main_i 68)))} assume a[i] != 23;i := i + 4; {27332#(and (or (<= main_n 45) (<= main_i 72)) (or (< 45 main_n) (and (<= 72 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:38:59,940 INFO L273 TraceCheckUtils]: 36: Hoare triple {27332#(and (or (<= main_n 45) (<= main_i 72)) (or (< 45 main_n) (and (<= 72 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {27332#(and (or (<= main_n 45) (<= main_i 72)) (or (< 45 main_n) (and (<= 72 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:38:59,941 INFO L273 TraceCheckUtils]: 37: Hoare triple {27332#(and (or (<= main_n 45) (<= main_i 72)) (or (< 45 main_n) (and (<= 72 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {27333#(and (or (<= main_i 76) (<= main_n 45)) (or (< 45 main_n) (and (<= 76 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:38:59,941 INFO L273 TraceCheckUtils]: 38: Hoare triple {27333#(and (or (<= main_i 76) (<= main_n 45)) (or (< 45 main_n) (and (<= 76 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {27333#(and (or (<= main_i 76) (<= main_n 45)) (or (< 45 main_n) (and (<= 76 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:38:59,943 INFO L273 TraceCheckUtils]: 39: Hoare triple {27333#(and (or (<= main_i 76) (<= main_n 45)) (or (< 45 main_n) (and (<= 76 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {27334#(and (or (< 45 main_n) (and (<= 80 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 45) (<= main_i 80)))} is VALID [2019-01-31 14:38:59,943 INFO L273 TraceCheckUtils]: 40: Hoare triple {27334#(and (or (< 45 main_n) (and (<= 80 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 45) (<= main_i 80)))} assume i <= n * 4; {27334#(and (or (< 45 main_n) (and (<= 80 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 45) (<= main_i 80)))} is VALID [2019-01-31 14:38:59,944 INFO L273 TraceCheckUtils]: 41: Hoare triple {27334#(and (or (< 45 main_n) (and (<= 80 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 45) (<= main_i 80)))} assume a[i] != 23;i := i + 4; {27335#(and (or (< 45 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 84 main_i))) (or (<= main_n 45) (<= main_i 84)))} is VALID [2019-01-31 14:38:59,945 INFO L273 TraceCheckUtils]: 42: Hoare triple {27335#(and (or (< 45 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 84 main_i))) (or (<= main_n 45) (<= main_i 84)))} assume i <= n * 4; {27335#(and (or (< 45 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 84 main_i))) (or (<= main_n 45) (<= main_i 84)))} is VALID [2019-01-31 14:38:59,946 INFO L273 TraceCheckUtils]: 43: Hoare triple {27335#(and (or (< 45 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 84 main_i))) (or (<= main_n 45) (<= main_i 84)))} assume a[i] != 23;i := i + 4; {27336#(and (or (<= main_i 88) (<= main_n 45)) (or (< 45 main_n) (and (<= 88 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:38:59,947 INFO L273 TraceCheckUtils]: 44: Hoare triple {27336#(and (or (<= main_i 88) (<= main_n 45)) (or (< 45 main_n) (and (<= 88 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {27336#(and (or (<= main_i 88) (<= main_n 45)) (or (< 45 main_n) (and (<= 88 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:38:59,948 INFO L273 TraceCheckUtils]: 45: Hoare triple {27336#(and (or (<= main_i 88) (<= main_n 45)) (or (< 45 main_n) (and (<= 88 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {27337#(and (or (<= main_i 92) (<= main_n 45)) (or (< 45 main_n) (and (<= 92 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:38:59,949 INFO L273 TraceCheckUtils]: 46: Hoare triple {27337#(and (or (<= main_i 92) (<= main_n 45)) (or (< 45 main_n) (and (<= 92 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {27337#(and (or (<= main_i 92) (<= main_n 45)) (or (< 45 main_n) (and (<= 92 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:38:59,950 INFO L273 TraceCheckUtils]: 47: Hoare triple {27337#(and (or (<= main_i 92) (<= main_n 45)) (or (< 45 main_n) (and (<= 92 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {27338#(and (or (< 45 main_n) (and (<= 96 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 96) (<= main_n 45)))} is VALID [2019-01-31 14:38:59,951 INFO L273 TraceCheckUtils]: 48: Hoare triple {27338#(and (or (< 45 main_n) (and (<= 96 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 96) (<= main_n 45)))} assume i <= n * 4; {27338#(and (or (< 45 main_n) (and (<= 96 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 96) (<= main_n 45)))} is VALID [2019-01-31 14:38:59,952 INFO L273 TraceCheckUtils]: 49: Hoare triple {27338#(and (or (< 45 main_n) (and (<= 96 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 96) (<= main_n 45)))} assume a[i] != 23;i := i + 4; {27339#(and (or (and (<= 100 main_i) (= 23 (select main_a (* 4 main_n)))) (< 45 main_n)) (or (<= main_n 45) (<= main_i 100)))} is VALID [2019-01-31 14:38:59,952 INFO L273 TraceCheckUtils]: 50: Hoare triple {27339#(and (or (and (<= 100 main_i) (= 23 (select main_a (* 4 main_n)))) (< 45 main_n)) (or (<= main_n 45) (<= main_i 100)))} assume i <= n * 4; {27339#(and (or (and (<= 100 main_i) (= 23 (select main_a (* 4 main_n)))) (< 45 main_n)) (or (<= main_n 45) (<= main_i 100)))} is VALID [2019-01-31 14:38:59,953 INFO L273 TraceCheckUtils]: 51: Hoare triple {27339#(and (or (and (<= 100 main_i) (= 23 (select main_a (* 4 main_n)))) (< 45 main_n)) (or (<= main_n 45) (<= main_i 100)))} assume a[i] != 23;i := i + 4; {27340#(and (or (<= main_i 104) (<= main_n 45)) (or (< 45 main_n) (and (<= 104 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:38:59,954 INFO L273 TraceCheckUtils]: 52: Hoare triple {27340#(and (or (<= main_i 104) (<= main_n 45)) (or (< 45 main_n) (and (<= 104 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {27340#(and (or (<= main_i 104) (<= main_n 45)) (or (< 45 main_n) (and (<= 104 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:38:59,956 INFO L273 TraceCheckUtils]: 53: Hoare triple {27340#(and (or (<= main_i 104) (<= main_n 45)) (or (< 45 main_n) (and (<= 104 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {27341#(and (or (< 45 main_n) (and (<= 108 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 45) (<= main_i 108)))} is VALID [2019-01-31 14:38:59,956 INFO L273 TraceCheckUtils]: 54: Hoare triple {27341#(and (or (< 45 main_n) (and (<= 108 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 45) (<= main_i 108)))} assume i <= n * 4; {27341#(and (or (< 45 main_n) (and (<= 108 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 45) (<= main_i 108)))} is VALID [2019-01-31 14:38:59,957 INFO L273 TraceCheckUtils]: 55: Hoare triple {27341#(and (or (< 45 main_n) (and (<= 108 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 45) (<= main_i 108)))} assume a[i] != 23;i := i + 4; {27342#(and (or (<= main_n 45) (<= main_i 112)) (or (< 45 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 112 main_i))))} is VALID [2019-01-31 14:38:59,958 INFO L273 TraceCheckUtils]: 56: Hoare triple {27342#(and (or (<= main_n 45) (<= main_i 112)) (or (< 45 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 112 main_i))))} assume i <= n * 4; {27342#(and (or (<= main_n 45) (<= main_i 112)) (or (< 45 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 112 main_i))))} is VALID [2019-01-31 14:38:59,959 INFO L273 TraceCheckUtils]: 57: Hoare triple {27342#(and (or (<= main_n 45) (<= main_i 112)) (or (< 45 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 112 main_i))))} assume a[i] != 23;i := i + 4; {27343#(and (or (< 45 main_n) (and (<= 116 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 45) (<= main_i 116)))} is VALID [2019-01-31 14:38:59,960 INFO L273 TraceCheckUtils]: 58: Hoare triple {27343#(and (or (< 45 main_n) (and (<= 116 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 45) (<= main_i 116)))} assume i <= n * 4; {27343#(and (or (< 45 main_n) (and (<= 116 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 45) (<= main_i 116)))} is VALID [2019-01-31 14:38:59,961 INFO L273 TraceCheckUtils]: 59: Hoare triple {27343#(and (or (< 45 main_n) (and (<= 116 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 45) (<= main_i 116)))} assume a[i] != 23;i := i + 4; {27344#(and (or (< 45 main_n) (and (<= 120 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 45) (<= main_i 120)))} is VALID [2019-01-31 14:38:59,962 INFO L273 TraceCheckUtils]: 60: Hoare triple {27344#(and (or (< 45 main_n) (and (<= 120 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 45) (<= main_i 120)))} assume i <= n * 4; {27344#(and (or (< 45 main_n) (and (<= 120 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 45) (<= main_i 120)))} is VALID [2019-01-31 14:38:59,963 INFO L273 TraceCheckUtils]: 61: Hoare triple {27344#(and (or (< 45 main_n) (and (<= 120 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 45) (<= main_i 120)))} assume a[i] != 23;i := i + 4; {27345#(and (or (< 45 main_n) (and (<= 124 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 45) (<= main_i 124)))} is VALID [2019-01-31 14:38:59,964 INFO L273 TraceCheckUtils]: 62: Hoare triple {27345#(and (or (< 45 main_n) (and (<= 124 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 45) (<= main_i 124)))} assume i <= n * 4; {27345#(and (or (< 45 main_n) (and (<= 124 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 45) (<= main_i 124)))} is VALID [2019-01-31 14:38:59,965 INFO L273 TraceCheckUtils]: 63: Hoare triple {27345#(and (or (< 45 main_n) (and (<= 124 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 45) (<= main_i 124)))} assume a[i] != 23;i := i + 4; {27346#(and (or (<= main_n 45) (<= main_i 128)) (or (< 45 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 128 main_i))))} is VALID [2019-01-31 14:38:59,966 INFO L273 TraceCheckUtils]: 64: Hoare triple {27346#(and (or (<= main_n 45) (<= main_i 128)) (or (< 45 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 128 main_i))))} assume i <= n * 4; {27346#(and (or (<= main_n 45) (<= main_i 128)) (or (< 45 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 128 main_i))))} is VALID [2019-01-31 14:38:59,967 INFO L273 TraceCheckUtils]: 65: Hoare triple {27346#(and (or (<= main_n 45) (<= main_i 128)) (or (< 45 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 128 main_i))))} assume a[i] != 23;i := i + 4; {27347#(and (or (< 45 main_n) (and (<= 132 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 45) (<= main_i 132)))} is VALID [2019-01-31 14:38:59,967 INFO L273 TraceCheckUtils]: 66: Hoare triple {27347#(and (or (< 45 main_n) (and (<= 132 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 45) (<= main_i 132)))} assume i <= n * 4; {27347#(and (or (< 45 main_n) (and (<= 132 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 45) (<= main_i 132)))} is VALID [2019-01-31 14:38:59,968 INFO L273 TraceCheckUtils]: 67: Hoare triple {27347#(and (or (< 45 main_n) (and (<= 132 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 45) (<= main_i 132)))} assume a[i] != 23;i := i + 4; {27348#(and (or (<= main_i 136) (<= main_n 45)) (or (< 45 main_n) (and (<= 136 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:38:59,969 INFO L273 TraceCheckUtils]: 68: Hoare triple {27348#(and (or (<= main_i 136) (<= main_n 45)) (or (< 45 main_n) (and (<= 136 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {27348#(and (or (<= main_i 136) (<= main_n 45)) (or (< 45 main_n) (and (<= 136 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:38:59,970 INFO L273 TraceCheckUtils]: 69: Hoare triple {27348#(and (or (<= main_i 136) (<= main_n 45)) (or (< 45 main_n) (and (<= 136 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {27349#(and (or (< 45 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 140 main_i))) (or (<= main_n 45) (<= main_i 140)))} is VALID [2019-01-31 14:38:59,971 INFO L273 TraceCheckUtils]: 70: Hoare triple {27349#(and (or (< 45 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 140 main_i))) (or (<= main_n 45) (<= main_i 140)))} assume i <= n * 4; {27349#(and (or (< 45 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 140 main_i))) (or (<= main_n 45) (<= main_i 140)))} is VALID [2019-01-31 14:38:59,972 INFO L273 TraceCheckUtils]: 71: Hoare triple {27349#(and (or (< 45 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 140 main_i))) (or (<= main_n 45) (<= main_i 140)))} assume a[i] != 23;i := i + 4; {27350#(and (or (<= main_n 45) (<= main_i 144)) (or (< 45 main_n) (and (<= 144 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:38:59,973 INFO L273 TraceCheckUtils]: 72: Hoare triple {27350#(and (or (<= main_n 45) (<= main_i 144)) (or (< 45 main_n) (and (<= 144 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {27350#(and (or (<= main_n 45) (<= main_i 144)) (or (< 45 main_n) (and (<= 144 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:38:59,974 INFO L273 TraceCheckUtils]: 73: Hoare triple {27350#(and (or (<= main_n 45) (<= main_i 144)) (or (< 45 main_n) (and (<= 144 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {27351#(and (or (<= main_n 45) (<= main_i 148)) (or (< 45 main_n) (and (<= 148 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:38:59,975 INFO L273 TraceCheckUtils]: 74: Hoare triple {27351#(and (or (<= main_n 45) (<= main_i 148)) (or (< 45 main_n) (and (<= 148 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {27351#(and (or (<= main_n 45) (<= main_i 148)) (or (< 45 main_n) (and (<= 148 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:38:59,976 INFO L273 TraceCheckUtils]: 75: Hoare triple {27351#(and (or (<= main_n 45) (<= main_i 148)) (or (< 45 main_n) (and (<= 148 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {27352#(and (or (< 45 main_n) (and (<= 152 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 45) (<= main_i 152)))} is VALID [2019-01-31 14:38:59,977 INFO L273 TraceCheckUtils]: 76: Hoare triple {27352#(and (or (< 45 main_n) (and (<= 152 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 45) (<= main_i 152)))} assume i <= n * 4; {27352#(and (or (< 45 main_n) (and (<= 152 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 45) (<= main_i 152)))} is VALID [2019-01-31 14:38:59,978 INFO L273 TraceCheckUtils]: 77: Hoare triple {27352#(and (or (< 45 main_n) (and (<= 152 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 45) (<= main_i 152)))} assume a[i] != 23;i := i + 4; {27353#(and (or (< 45 main_n) (and (<= 156 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 45) (<= main_i 156)))} is VALID [2019-01-31 14:38:59,978 INFO L273 TraceCheckUtils]: 78: Hoare triple {27353#(and (or (< 45 main_n) (and (<= 156 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 45) (<= main_i 156)))} assume i <= n * 4; {27353#(and (or (< 45 main_n) (and (<= 156 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 45) (<= main_i 156)))} is VALID [2019-01-31 14:38:59,980 INFO L273 TraceCheckUtils]: 79: Hoare triple {27353#(and (or (< 45 main_n) (and (<= 156 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 45) (<= main_i 156)))} assume a[i] != 23;i := i + 4; {27354#(and (or (< 45 main_n) (and (<= 160 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 45) (<= main_i 160)))} is VALID [2019-01-31 14:38:59,980 INFO L273 TraceCheckUtils]: 80: Hoare triple {27354#(and (or (< 45 main_n) (and (<= 160 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 45) (<= main_i 160)))} assume i <= n * 4; {27354#(and (or (< 45 main_n) (and (<= 160 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 45) (<= main_i 160)))} is VALID [2019-01-31 14:38:59,981 INFO L273 TraceCheckUtils]: 81: Hoare triple {27354#(and (or (< 45 main_n) (and (<= 160 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 45) (<= main_i 160)))} assume a[i] != 23;i := i + 4; {27355#(and (or (and (<= 164 main_i) (= 23 (select main_a (* 4 main_n)))) (< 45 main_n)) (or (<= main_n 45) (<= main_i 164)))} is VALID [2019-01-31 14:38:59,982 INFO L273 TraceCheckUtils]: 82: Hoare triple {27355#(and (or (and (<= 164 main_i) (= 23 (select main_a (* 4 main_n)))) (< 45 main_n)) (or (<= main_n 45) (<= main_i 164)))} assume i <= n * 4; {27355#(and (or (and (<= 164 main_i) (= 23 (select main_a (* 4 main_n)))) (< 45 main_n)) (or (<= main_n 45) (<= main_i 164)))} is VALID [2019-01-31 14:38:59,983 INFO L273 TraceCheckUtils]: 83: Hoare triple {27355#(and (or (and (<= 164 main_i) (= 23 (select main_a (* 4 main_n)))) (< 45 main_n)) (or (<= main_n 45) (<= main_i 164)))} assume a[i] != 23;i := i + 4; {27356#(and (or (< 45 main_n) (and (<= 168 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 45) (<= main_i 168)))} is VALID [2019-01-31 14:38:59,984 INFO L273 TraceCheckUtils]: 84: Hoare triple {27356#(and (or (< 45 main_n) (and (<= 168 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 45) (<= main_i 168)))} assume i <= n * 4; {27356#(and (or (< 45 main_n) (and (<= 168 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 45) (<= main_i 168)))} is VALID [2019-01-31 14:38:59,985 INFO L273 TraceCheckUtils]: 85: Hoare triple {27356#(and (or (< 45 main_n) (and (<= 168 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 45) (<= main_i 168)))} assume a[i] != 23;i := i + 4; {27357#(and (or (<= main_n 45) (<= main_i 172)) (or (< 45 main_n) (and (<= 172 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:38:59,986 INFO L273 TraceCheckUtils]: 86: Hoare triple {27357#(and (or (<= main_n 45) (<= main_i 172)) (or (< 45 main_n) (and (<= 172 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {27357#(and (or (<= main_n 45) (<= main_i 172)) (or (< 45 main_n) (and (<= 172 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:38:59,987 INFO L273 TraceCheckUtils]: 87: Hoare triple {27357#(and (or (<= main_n 45) (<= main_i 172)) (or (< 45 main_n) (and (<= 172 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {27358#(and (or (< 45 main_n) (and (<= 176 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 176) (<= main_n 45)))} is VALID [2019-01-31 14:38:59,988 INFO L273 TraceCheckUtils]: 88: Hoare triple {27358#(and (or (< 45 main_n) (and (<= 176 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 176) (<= main_n 45)))} assume i <= n * 4; {27358#(and (or (< 45 main_n) (and (<= 176 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 176) (<= main_n 45)))} is VALID [2019-01-31 14:38:59,989 INFO L273 TraceCheckUtils]: 89: Hoare triple {27358#(and (or (< 45 main_n) (and (<= 176 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 176) (<= main_n 45)))} assume a[i] != 23;i := i + 4; {27359#(and (or (<= main_n 45) (<= main_i 180)) (or (and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (<= (* 4 main_n) main_i)) (< 45 main_n)))} is VALID [2019-01-31 14:38:59,990 INFO L273 TraceCheckUtils]: 90: Hoare triple {27359#(and (or (<= main_n 45) (<= main_i 180)) (or (and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (<= (* 4 main_n) main_i)) (< 45 main_n)))} assume i <= n * 4; {27360#(and (or (< 45 main_n) (and (<= (* 4 main_n) main_i) (<= main_i (* 4 main_n)) (= 23 (select main_a main_i)))) (<= main_i 180))} is VALID [2019-01-31 14:38:59,991 INFO L273 TraceCheckUtils]: 91: Hoare triple {27360#(and (or (< 45 main_n) (and (<= (* 4 main_n) main_i) (<= main_i (* 4 main_n)) (= 23 (select main_a main_i)))) (<= main_i 180))} assume a[i] != 23;i := i + 4; {27361#(and (<= main_i 184) (<= 46 main_n))} is VALID [2019-01-31 14:38:59,992 INFO L273 TraceCheckUtils]: 92: Hoare triple {27361#(and (<= main_i 184) (<= 46 main_n))} assume !(i <= n * 4); {27313#false} is VALID [2019-01-31 14:39:00,030 INFO L134 CoverageAnalysis]: Checked inductivity of 2070 backedges. 0 proven. 2070 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-31 14:39:00,030 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-31 14:39:00,030 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-01-31 14:39:00,030 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-01-31 14:39:00,031 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-01-31 14:39:00,031 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-31 14:39:00,031 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 14:39:00,040 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2019-01-31 14:39:00,041 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder TERMS_WITH_SMALL_CONSTANTS_FIRST (IT: FPandBP) [2019-01-31 14:39:00,067 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-01-31 14:39:00,067 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-01-31 14:39:00,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-31 14:39:00,081 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-31 14:39:00,095 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 14:39:00,099 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-01-31 14:39:00,107 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-31 14:39:00,107 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2019-01-31 14:39:00,108 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-01-31 14:39:00,108 WARN L398 uantifierElimination]: Input elimination task: ∃ [v_main_a_49]. (and (= main_a (store v_main_a_49 (* 4 main_n) 23)) (= main_i 0)) [2019-01-31 14:39:00,109 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2019-01-31 14:39:03,801 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2019-01-31 14:39:03,803 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-01-31 14:39:03,809 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-31 14:39:03,809 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2019-01-31 14:39:03,812 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-01-31 14:39:03,812 WARN L398 uantifierElimination]: Input elimination task: ∃ [main_a]. (let ((.cse0 (* 4 main_n))) (and (<= 180 .cse0) (<= main_i 184) (not (= 23 (select main_a 180))) (= 23 (select main_a .cse0)))) [2019-01-31 14:39:03,812 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (let ((.cse0 (* 4 main_n))) (and (<= 180 .cse0) (<= main_i 184) (not (= 180 .cse0)))) [2019-01-31 14:39:03,871 INFO L273 TraceCheckUtils]: 0: Hoare triple {27312#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {27365#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:03,872 INFO L273 TraceCheckUtils]: 1: Hoare triple {27365#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {27369#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2019-01-31 14:39:03,872 INFO L273 TraceCheckUtils]: 2: Hoare triple {27369#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume i <= n * 4; {27369#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2019-01-31 14:39:03,873 INFO L273 TraceCheckUtils]: 3: Hoare triple {27369#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume a[i] != 23;i := i + 4; {27376#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:03,873 INFO L273 TraceCheckUtils]: 4: Hoare triple {27376#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {27376#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:03,874 INFO L273 TraceCheckUtils]: 5: Hoare triple {27376#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {27383#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2019-01-31 14:39:03,875 INFO L273 TraceCheckUtils]: 6: Hoare triple {27383#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume i <= n * 4; {27383#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2019-01-31 14:39:03,875 INFO L273 TraceCheckUtils]: 7: Hoare triple {27383#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume a[i] != 23;i := i + 4; {27390#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:03,876 INFO L273 TraceCheckUtils]: 8: Hoare triple {27390#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {27390#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:03,877 INFO L273 TraceCheckUtils]: 9: Hoare triple {27390#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {27397#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:03,877 INFO L273 TraceCheckUtils]: 10: Hoare triple {27397#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {27397#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:03,878 INFO L273 TraceCheckUtils]: 11: Hoare triple {27397#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {27404#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:03,879 INFO L273 TraceCheckUtils]: 12: Hoare triple {27404#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {27404#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:03,880 INFO L273 TraceCheckUtils]: 13: Hoare triple {27404#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {27411#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:03,880 INFO L273 TraceCheckUtils]: 14: Hoare triple {27411#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {27411#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:03,881 INFO L273 TraceCheckUtils]: 15: Hoare triple {27411#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {27418#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:03,882 INFO L273 TraceCheckUtils]: 16: Hoare triple {27418#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {27418#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:03,882 INFO L273 TraceCheckUtils]: 17: Hoare triple {27418#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {27425#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:03,883 INFO L273 TraceCheckUtils]: 18: Hoare triple {27425#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {27425#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:03,884 INFO L273 TraceCheckUtils]: 19: Hoare triple {27425#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {27432#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:03,884 INFO L273 TraceCheckUtils]: 20: Hoare triple {27432#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {27432#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:03,885 INFO L273 TraceCheckUtils]: 21: Hoare triple {27432#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {27439#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:03,886 INFO L273 TraceCheckUtils]: 22: Hoare triple {27439#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {27439#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:03,886 INFO L273 TraceCheckUtils]: 23: Hoare triple {27439#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {27446#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:03,887 INFO L273 TraceCheckUtils]: 24: Hoare triple {27446#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {27446#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:03,888 INFO L273 TraceCheckUtils]: 25: Hoare triple {27446#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {27453#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:03,888 INFO L273 TraceCheckUtils]: 26: Hoare triple {27453#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {27453#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:03,889 INFO L273 TraceCheckUtils]: 27: Hoare triple {27453#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {27460#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:03,890 INFO L273 TraceCheckUtils]: 28: Hoare triple {27460#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {27460#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:03,890 INFO L273 TraceCheckUtils]: 29: Hoare triple {27460#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {27467#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:03,891 INFO L273 TraceCheckUtils]: 30: Hoare triple {27467#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {27467#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:03,892 INFO L273 TraceCheckUtils]: 31: Hoare triple {27467#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {27474#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:03,892 INFO L273 TraceCheckUtils]: 32: Hoare triple {27474#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {27474#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:03,893 INFO L273 TraceCheckUtils]: 33: Hoare triple {27474#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {27481#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:03,894 INFO L273 TraceCheckUtils]: 34: Hoare triple {27481#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {27481#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:03,894 INFO L273 TraceCheckUtils]: 35: Hoare triple {27481#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {27488#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:03,895 INFO L273 TraceCheckUtils]: 36: Hoare triple {27488#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {27488#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:03,896 INFO L273 TraceCheckUtils]: 37: Hoare triple {27488#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {27495#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:03,896 INFO L273 TraceCheckUtils]: 38: Hoare triple {27495#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {27495#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:03,897 INFO L273 TraceCheckUtils]: 39: Hoare triple {27495#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {27502#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} is VALID [2019-01-31 14:39:03,898 INFO L273 TraceCheckUtils]: 40: Hoare triple {27502#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} assume i <= n * 4; {27502#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} is VALID [2019-01-31 14:39:03,899 INFO L273 TraceCheckUtils]: 41: Hoare triple {27502#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} assume a[i] != 23;i := i + 4; {27509#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:03,899 INFO L273 TraceCheckUtils]: 42: Hoare triple {27509#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {27509#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:03,900 INFO L273 TraceCheckUtils]: 43: Hoare triple {27509#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {27516#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:03,901 INFO L273 TraceCheckUtils]: 44: Hoare triple {27516#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {27516#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:03,901 INFO L273 TraceCheckUtils]: 45: Hoare triple {27516#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {27523#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:03,902 INFO L273 TraceCheckUtils]: 46: Hoare triple {27523#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {27523#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:03,903 INFO L273 TraceCheckUtils]: 47: Hoare triple {27523#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {27530#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:03,903 INFO L273 TraceCheckUtils]: 48: Hoare triple {27530#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {27530#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:03,904 INFO L273 TraceCheckUtils]: 49: Hoare triple {27530#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {27537#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:03,905 INFO L273 TraceCheckUtils]: 50: Hoare triple {27537#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {27537#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:03,905 INFO L273 TraceCheckUtils]: 51: Hoare triple {27537#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {27544#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:03,906 INFO L273 TraceCheckUtils]: 52: Hoare triple {27544#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {27544#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:03,907 INFO L273 TraceCheckUtils]: 53: Hoare triple {27544#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {27551#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:03,908 INFO L273 TraceCheckUtils]: 54: Hoare triple {27551#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {27551#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:03,908 INFO L273 TraceCheckUtils]: 55: Hoare triple {27551#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {27558#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:03,909 INFO L273 TraceCheckUtils]: 56: Hoare triple {27558#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {27558#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:03,910 INFO L273 TraceCheckUtils]: 57: Hoare triple {27558#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {27565#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:03,910 INFO L273 TraceCheckUtils]: 58: Hoare triple {27565#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {27565#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:03,911 INFO L273 TraceCheckUtils]: 59: Hoare triple {27565#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {27572#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:03,912 INFO L273 TraceCheckUtils]: 60: Hoare triple {27572#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {27572#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:03,912 INFO L273 TraceCheckUtils]: 61: Hoare triple {27572#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {27579#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:03,913 INFO L273 TraceCheckUtils]: 62: Hoare triple {27579#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {27579#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:03,914 INFO L273 TraceCheckUtils]: 63: Hoare triple {27579#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {27586#(and (= main_i 128) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:03,914 INFO L273 TraceCheckUtils]: 64: Hoare triple {27586#(and (= main_i 128) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {27586#(and (= main_i 128) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:03,915 INFO L273 TraceCheckUtils]: 65: Hoare triple {27586#(and (= main_i 128) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {27593#(and (= main_i 132) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:03,916 INFO L273 TraceCheckUtils]: 66: Hoare triple {27593#(and (= main_i 132) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {27593#(and (= main_i 132) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:03,916 INFO L273 TraceCheckUtils]: 67: Hoare triple {27593#(and (= main_i 132) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {27600#(and (= main_i 136) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:03,917 INFO L273 TraceCheckUtils]: 68: Hoare triple {27600#(and (= main_i 136) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {27600#(and (= main_i 136) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:03,918 INFO L273 TraceCheckUtils]: 69: Hoare triple {27600#(and (= main_i 136) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {27607#(and (= 23 (select main_a (* 4 main_n))) (= main_i 140))} is VALID [2019-01-31 14:39:03,919 INFO L273 TraceCheckUtils]: 70: Hoare triple {27607#(and (= 23 (select main_a (* 4 main_n))) (= main_i 140))} assume i <= n * 4; {27607#(and (= 23 (select main_a (* 4 main_n))) (= main_i 140))} is VALID [2019-01-31 14:39:03,919 INFO L273 TraceCheckUtils]: 71: Hoare triple {27607#(and (= 23 (select main_a (* 4 main_n))) (= main_i 140))} assume a[i] != 23;i := i + 4; {27614#(and (= main_i 144) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:03,920 INFO L273 TraceCheckUtils]: 72: Hoare triple {27614#(and (= main_i 144) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {27614#(and (= main_i 144) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:03,921 INFO L273 TraceCheckUtils]: 73: Hoare triple {27614#(and (= main_i 144) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {27621#(and (= main_i 148) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:03,921 INFO L273 TraceCheckUtils]: 74: Hoare triple {27621#(and (= main_i 148) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {27621#(and (= main_i 148) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:03,922 INFO L273 TraceCheckUtils]: 75: Hoare triple {27621#(and (= main_i 148) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {27628#(and (= main_i 152) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:03,923 INFO L273 TraceCheckUtils]: 76: Hoare triple {27628#(and (= main_i 152) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {27628#(and (= main_i 152) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:03,923 INFO L273 TraceCheckUtils]: 77: Hoare triple {27628#(and (= main_i 152) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {27635#(and (= main_i 156) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:03,924 INFO L273 TraceCheckUtils]: 78: Hoare triple {27635#(and (= main_i 156) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {27635#(and (= main_i 156) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:03,925 INFO L273 TraceCheckUtils]: 79: Hoare triple {27635#(and (= main_i 156) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {27642#(and (= main_i 160) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:03,925 INFO L273 TraceCheckUtils]: 80: Hoare triple {27642#(and (= main_i 160) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {27642#(and (= main_i 160) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:03,926 INFO L273 TraceCheckUtils]: 81: Hoare triple {27642#(and (= main_i 160) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {27649#(and (= 23 (select main_a (* 4 main_n))) (= main_i 164))} is VALID [2019-01-31 14:39:03,927 INFO L273 TraceCheckUtils]: 82: Hoare triple {27649#(and (= 23 (select main_a (* 4 main_n))) (= main_i 164))} assume i <= n * 4; {27649#(and (= 23 (select main_a (* 4 main_n))) (= main_i 164))} is VALID [2019-01-31 14:39:03,927 INFO L273 TraceCheckUtils]: 83: Hoare triple {27649#(and (= 23 (select main_a (* 4 main_n))) (= main_i 164))} assume a[i] != 23;i := i + 4; {27656#(and (= main_i 168) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:03,928 INFO L273 TraceCheckUtils]: 84: Hoare triple {27656#(and (= main_i 168) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {27656#(and (= main_i 168) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:03,929 INFO L273 TraceCheckUtils]: 85: Hoare triple {27656#(and (= main_i 168) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {27663#(and (= main_i 172) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:03,930 INFO L273 TraceCheckUtils]: 86: Hoare triple {27663#(and (= main_i 172) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {27663#(and (= main_i 172) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:03,930 INFO L273 TraceCheckUtils]: 87: Hoare triple {27663#(and (= main_i 172) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {27670#(and (= main_i 176) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:03,931 INFO L273 TraceCheckUtils]: 88: Hoare triple {27670#(and (= main_i 176) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {27670#(and (= main_i 176) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:03,932 INFO L273 TraceCheckUtils]: 89: Hoare triple {27670#(and (= main_i 176) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {27677#(and (= main_i 180) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:03,932 INFO L273 TraceCheckUtils]: 90: Hoare triple {27677#(and (= main_i 180) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {27681#(and (= main_i 180) (<= main_i (* 4 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:03,933 INFO L273 TraceCheckUtils]: 91: Hoare triple {27681#(and (= main_i 180) (<= main_i (* 4 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {27361#(and (<= main_i 184) (<= 46 main_n))} is VALID [2019-01-31 14:39:03,934 INFO L273 TraceCheckUtils]: 92: Hoare triple {27361#(and (<= main_i 184) (<= 46 main_n))} assume !(i <= n * 4); {27313#false} is VALID [2019-01-31 14:39:03,954 INFO L134 CoverageAnalysis]: Checked inductivity of 2070 backedges. 0 proven. 2070 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-31 14:39:03,954 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2019-01-31 14:39:10,095 INFO L273 TraceCheckUtils]: 92: Hoare triple {27688#(<= main_i (* 4 main_n))} assume !(i <= n * 4); {27313#false} is VALID [2019-01-31 14:39:10,097 INFO L273 TraceCheckUtils]: 91: Hoare triple {27692#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} assume a[i] != 23;i := i + 4; {27688#(<= main_i (* 4 main_n))} is VALID [2019-01-31 14:39:10,097 INFO L273 TraceCheckUtils]: 90: Hoare triple {27696#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} assume i <= n * 4; {27692#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} is VALID [2019-01-31 14:39:10,098 INFO L273 TraceCheckUtils]: 89: Hoare triple {27700#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume a[i] != 23;i := i + 4; {27696#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} is VALID [2019-01-31 14:39:10,098 INFO L273 TraceCheckUtils]: 88: Hoare triple {27700#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume i <= n * 4; {27700#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2019-01-31 14:39:10,099 INFO L273 TraceCheckUtils]: 87: Hoare triple {27707#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume a[i] != 23;i := i + 4; {27700#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2019-01-31 14:39:10,099 INFO L273 TraceCheckUtils]: 86: Hoare triple {27707#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume i <= n * 4; {27707#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2019-01-31 14:39:10,100 INFO L273 TraceCheckUtils]: 85: Hoare triple {27714#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume a[i] != 23;i := i + 4; {27707#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2019-01-31 14:39:10,101 INFO L273 TraceCheckUtils]: 84: Hoare triple {27714#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume i <= n * 4; {27714#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2019-01-31 14:39:10,102 INFO L273 TraceCheckUtils]: 83: Hoare triple {27721#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume a[i] != 23;i := i + 4; {27714#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2019-01-31 14:39:10,103 INFO L273 TraceCheckUtils]: 82: Hoare triple {27721#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume i <= n * 4; {27721#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2019-01-31 14:39:10,104 INFO L273 TraceCheckUtils]: 81: Hoare triple {27728#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {27721#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2019-01-31 14:39:10,104 INFO L273 TraceCheckUtils]: 80: Hoare triple {27728#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume i <= n * 4; {27728#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2019-01-31 14:39:10,105 INFO L273 TraceCheckUtils]: 79: Hoare triple {27735#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume a[i] != 23;i := i + 4; {27728#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2019-01-31 14:39:10,106 INFO L273 TraceCheckUtils]: 78: Hoare triple {27735#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume i <= n * 4; {27735#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2019-01-31 14:39:10,107 INFO L273 TraceCheckUtils]: 77: Hoare triple {27742#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {27735#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2019-01-31 14:39:10,108 INFO L273 TraceCheckUtils]: 76: Hoare triple {27742#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume i <= n * 4; {27742#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2019-01-31 14:39:10,109 INFO L273 TraceCheckUtils]: 75: Hoare triple {27749#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {27742#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2019-01-31 14:39:10,109 INFO L273 TraceCheckUtils]: 74: Hoare triple {27749#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume i <= n * 4; {27749#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2019-01-31 14:39:10,110 INFO L273 TraceCheckUtils]: 73: Hoare triple {27756#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {27749#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2019-01-31 14:39:10,111 INFO L273 TraceCheckUtils]: 72: Hoare triple {27756#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume i <= n * 4; {27756#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2019-01-31 14:39:10,112 INFO L273 TraceCheckUtils]: 71: Hoare triple {27763#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} assume a[i] != 23;i := i + 4; {27756#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2019-01-31 14:39:10,113 INFO L273 TraceCheckUtils]: 70: Hoare triple {27763#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} assume i <= n * 4; {27763#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} is VALID [2019-01-31 14:39:10,114 INFO L273 TraceCheckUtils]: 69: Hoare triple {27770#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {27763#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} is VALID [2019-01-31 14:39:10,114 INFO L273 TraceCheckUtils]: 68: Hoare triple {27770#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} assume i <= n * 4; {27770#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} is VALID [2019-01-31 14:39:10,115 INFO L273 TraceCheckUtils]: 67: Hoare triple {27777#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {27770#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} is VALID [2019-01-31 14:39:10,116 INFO L273 TraceCheckUtils]: 66: Hoare triple {27777#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} assume i <= n * 4; {27777#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} is VALID [2019-01-31 14:39:10,117 INFO L273 TraceCheckUtils]: 65: Hoare triple {27784#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} assume a[i] != 23;i := i + 4; {27777#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} is VALID [2019-01-31 14:39:10,118 INFO L273 TraceCheckUtils]: 64: Hoare triple {27784#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} assume i <= n * 4; {27784#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} is VALID [2019-01-31 14:39:10,119 INFO L273 TraceCheckUtils]: 63: Hoare triple {27791#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {27784#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} is VALID [2019-01-31 14:39:10,119 INFO L273 TraceCheckUtils]: 62: Hoare triple {27791#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} assume i <= n * 4; {27791#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} is VALID [2019-01-31 14:39:10,120 INFO L273 TraceCheckUtils]: 61: Hoare triple {27798#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} assume a[i] != 23;i := i + 4; {27791#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} is VALID [2019-01-31 14:39:10,121 INFO L273 TraceCheckUtils]: 60: Hoare triple {27798#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} assume i <= n * 4; {27798#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} is VALID [2019-01-31 14:39:10,122 INFO L273 TraceCheckUtils]: 59: Hoare triple {27805#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} assume a[i] != 23;i := i + 4; {27798#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} is VALID [2019-01-31 14:39:10,123 INFO L273 TraceCheckUtils]: 58: Hoare triple {27805#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} assume i <= n * 4; {27805#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} is VALID [2019-01-31 14:39:10,124 INFO L273 TraceCheckUtils]: 57: Hoare triple {27812#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} assume a[i] != 23;i := i + 4; {27805#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} is VALID [2019-01-31 14:39:10,124 INFO L273 TraceCheckUtils]: 56: Hoare triple {27812#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} assume i <= n * 4; {27812#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} is VALID [2019-01-31 14:39:10,125 INFO L273 TraceCheckUtils]: 55: Hoare triple {27819#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} assume a[i] != 23;i := i + 4; {27812#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} is VALID [2019-01-31 14:39:10,126 INFO L273 TraceCheckUtils]: 54: Hoare triple {27819#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} assume i <= n * 4; {27819#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} is VALID [2019-01-31 14:39:10,127 INFO L273 TraceCheckUtils]: 53: Hoare triple {27826#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} assume a[i] != 23;i := i + 4; {27819#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} is VALID [2019-01-31 14:39:10,128 INFO L273 TraceCheckUtils]: 52: Hoare triple {27826#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} assume i <= n * 4; {27826#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} is VALID [2019-01-31 14:39:10,129 INFO L273 TraceCheckUtils]: 51: Hoare triple {27833#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} assume a[i] != 23;i := i + 4; {27826#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} is VALID [2019-01-31 14:39:10,129 INFO L273 TraceCheckUtils]: 50: Hoare triple {27833#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} assume i <= n * 4; {27833#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} is VALID [2019-01-31 14:39:10,130 INFO L273 TraceCheckUtils]: 49: Hoare triple {27840#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {27833#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} is VALID [2019-01-31 14:39:10,131 INFO L273 TraceCheckUtils]: 48: Hoare triple {27840#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} assume i <= n * 4; {27840#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} is VALID [2019-01-31 14:39:10,132 INFO L273 TraceCheckUtils]: 47: Hoare triple {27847#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {27840#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} is VALID [2019-01-31 14:39:10,133 INFO L273 TraceCheckUtils]: 46: Hoare triple {27847#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} assume i <= n * 4; {27847#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} is VALID [2019-01-31 14:39:10,134 INFO L273 TraceCheckUtils]: 45: Hoare triple {27854#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {27847#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} is VALID [2019-01-31 14:39:10,134 INFO L273 TraceCheckUtils]: 44: Hoare triple {27854#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} assume i <= n * 4; {27854#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} is VALID [2019-01-31 14:39:10,135 INFO L273 TraceCheckUtils]: 43: Hoare triple {27861#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} assume a[i] != 23;i := i + 4; {27854#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} is VALID [2019-01-31 14:39:10,136 INFO L273 TraceCheckUtils]: 42: Hoare triple {27861#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} assume i <= n * 4; {27861#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} is VALID [2019-01-31 14:39:10,137 INFO L273 TraceCheckUtils]: 41: Hoare triple {27868#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {27861#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} is VALID [2019-01-31 14:39:10,138 INFO L273 TraceCheckUtils]: 40: Hoare triple {27868#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} assume i <= n * 4; {27868#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} is VALID [2019-01-31 14:39:10,139 INFO L273 TraceCheckUtils]: 39: Hoare triple {27875#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} assume a[i] != 23;i := i + 4; {27868#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} is VALID [2019-01-31 14:39:10,139 INFO L273 TraceCheckUtils]: 38: Hoare triple {27875#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} assume i <= n * 4; {27875#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} is VALID [2019-01-31 14:39:10,140 INFO L273 TraceCheckUtils]: 37: Hoare triple {27882#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} assume a[i] != 23;i := i + 4; {27875#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} is VALID [2019-01-31 14:39:10,141 INFO L273 TraceCheckUtils]: 36: Hoare triple {27882#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} assume i <= n * 4; {27882#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} is VALID [2019-01-31 14:39:10,142 INFO L273 TraceCheckUtils]: 35: Hoare triple {27889#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} assume a[i] != 23;i := i + 4; {27882#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} is VALID [2019-01-31 14:39:10,143 INFO L273 TraceCheckUtils]: 34: Hoare triple {27889#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} assume i <= n * 4; {27889#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} is VALID [2019-01-31 14:39:10,144 INFO L273 TraceCheckUtils]: 33: Hoare triple {27896#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {27889#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} is VALID [2019-01-31 14:39:10,144 INFO L273 TraceCheckUtils]: 32: Hoare triple {27896#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} assume i <= n * 4; {27896#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} is VALID [2019-01-31 14:39:10,145 INFO L273 TraceCheckUtils]: 31: Hoare triple {27903#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {27896#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} is VALID [2019-01-31 14:39:10,146 INFO L273 TraceCheckUtils]: 30: Hoare triple {27903#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} assume i <= n * 4; {27903#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} is VALID [2019-01-31 14:39:10,147 INFO L273 TraceCheckUtils]: 29: Hoare triple {27910#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} assume a[i] != 23;i := i + 4; {27903#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} is VALID [2019-01-31 14:39:10,148 INFO L273 TraceCheckUtils]: 28: Hoare triple {27910#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} assume i <= n * 4; {27910#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} is VALID [2019-01-31 14:39:10,149 INFO L273 TraceCheckUtils]: 27: Hoare triple {27917#(or (< (* 4 main_n) (+ main_i 128)) (= (select main_a (+ main_i 128)) 23) (< (+ main_i 131) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {27910#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} is VALID [2019-01-31 14:39:10,149 INFO L273 TraceCheckUtils]: 26: Hoare triple {27917#(or (< (* 4 main_n) (+ main_i 128)) (= (select main_a (+ main_i 128)) 23) (< (+ main_i 131) (* 4 main_n)))} assume i <= n * 4; {27917#(or (< (* 4 main_n) (+ main_i 128)) (= (select main_a (+ main_i 128)) 23) (< (+ main_i 131) (* 4 main_n)))} is VALID [2019-01-31 14:39:10,150 INFO L273 TraceCheckUtils]: 25: Hoare triple {27924#(or (< (* 4 main_n) (+ main_i 132)) (< (+ main_i 135) (* 4 main_n)) (= (select main_a (+ main_i 132)) 23))} assume a[i] != 23;i := i + 4; {27917#(or (< (* 4 main_n) (+ main_i 128)) (= (select main_a (+ main_i 128)) 23) (< (+ main_i 131) (* 4 main_n)))} is VALID [2019-01-31 14:39:10,151 INFO L273 TraceCheckUtils]: 24: Hoare triple {27924#(or (< (* 4 main_n) (+ main_i 132)) (< (+ main_i 135) (* 4 main_n)) (= (select main_a (+ main_i 132)) 23))} assume i <= n * 4; {27924#(or (< (* 4 main_n) (+ main_i 132)) (< (+ main_i 135) (* 4 main_n)) (= (select main_a (+ main_i 132)) 23))} is VALID [2019-01-31 14:39:10,152 INFO L273 TraceCheckUtils]: 23: Hoare triple {27931#(or (< (+ main_i 139) (* 4 main_n)) (= (select main_a (+ main_i 136)) 23) (< (* 4 main_n) (+ main_i 136)))} assume a[i] != 23;i := i + 4; {27924#(or (< (* 4 main_n) (+ main_i 132)) (< (+ main_i 135) (* 4 main_n)) (= (select main_a (+ main_i 132)) 23))} is VALID [2019-01-31 14:39:10,153 INFO L273 TraceCheckUtils]: 22: Hoare triple {27931#(or (< (+ main_i 139) (* 4 main_n)) (= (select main_a (+ main_i 136)) 23) (< (* 4 main_n) (+ main_i 136)))} assume i <= n * 4; {27931#(or (< (+ main_i 139) (* 4 main_n)) (= (select main_a (+ main_i 136)) 23) (< (* 4 main_n) (+ main_i 136)))} is VALID [2019-01-31 14:39:10,154 INFO L273 TraceCheckUtils]: 21: Hoare triple {27938#(or (< (* 4 main_n) (+ main_i 140)) (< (+ main_i 143) (* 4 main_n)) (= (select main_a (+ main_i 140)) 23))} assume a[i] != 23;i := i + 4; {27931#(or (< (+ main_i 139) (* 4 main_n)) (= (select main_a (+ main_i 136)) 23) (< (* 4 main_n) (+ main_i 136)))} is VALID [2019-01-31 14:39:10,154 INFO L273 TraceCheckUtils]: 20: Hoare triple {27938#(or (< (* 4 main_n) (+ main_i 140)) (< (+ main_i 143) (* 4 main_n)) (= (select main_a (+ main_i 140)) 23))} assume i <= n * 4; {27938#(or (< (* 4 main_n) (+ main_i 140)) (< (+ main_i 143) (* 4 main_n)) (= (select main_a (+ main_i 140)) 23))} is VALID [2019-01-31 14:39:10,155 INFO L273 TraceCheckUtils]: 19: Hoare triple {27945#(or (= (select main_a (+ main_i 144)) 23) (< (+ main_i 147) (* 4 main_n)) (< (* 4 main_n) (+ main_i 144)))} assume a[i] != 23;i := i + 4; {27938#(or (< (* 4 main_n) (+ main_i 140)) (< (+ main_i 143) (* 4 main_n)) (= (select main_a (+ main_i 140)) 23))} is VALID [2019-01-31 14:39:10,156 INFO L273 TraceCheckUtils]: 18: Hoare triple {27945#(or (= (select main_a (+ main_i 144)) 23) (< (+ main_i 147) (* 4 main_n)) (< (* 4 main_n) (+ main_i 144)))} assume i <= n * 4; {27945#(or (= (select main_a (+ main_i 144)) 23) (< (+ main_i 147) (* 4 main_n)) (< (* 4 main_n) (+ main_i 144)))} is VALID [2019-01-31 14:39:10,157 INFO L273 TraceCheckUtils]: 17: Hoare triple {27952#(or (< (+ main_i 151) (* 4 main_n)) (< (* 4 main_n) (+ main_i 148)) (= (select main_a (+ main_i 148)) 23))} assume a[i] != 23;i := i + 4; {27945#(or (= (select main_a (+ main_i 144)) 23) (< (+ main_i 147) (* 4 main_n)) (< (* 4 main_n) (+ main_i 144)))} is VALID [2019-01-31 14:39:10,158 INFO L273 TraceCheckUtils]: 16: Hoare triple {27952#(or (< (+ main_i 151) (* 4 main_n)) (< (* 4 main_n) (+ main_i 148)) (= (select main_a (+ main_i 148)) 23))} assume i <= n * 4; {27952#(or (< (+ main_i 151) (* 4 main_n)) (< (* 4 main_n) (+ main_i 148)) (= (select main_a (+ main_i 148)) 23))} is VALID [2019-01-31 14:39:10,159 INFO L273 TraceCheckUtils]: 15: Hoare triple {27959#(or (= 23 (select main_a (+ main_i 152))) (< (+ main_i 155) (* 4 main_n)) (< (* 4 main_n) (+ main_i 152)))} assume a[i] != 23;i := i + 4; {27952#(or (< (+ main_i 151) (* 4 main_n)) (< (* 4 main_n) (+ main_i 148)) (= (select main_a (+ main_i 148)) 23))} is VALID [2019-01-31 14:39:10,159 INFO L273 TraceCheckUtils]: 14: Hoare triple {27959#(or (= 23 (select main_a (+ main_i 152))) (< (+ main_i 155) (* 4 main_n)) (< (* 4 main_n) (+ main_i 152)))} assume i <= n * 4; {27959#(or (= 23 (select main_a (+ main_i 152))) (< (+ main_i 155) (* 4 main_n)) (< (* 4 main_n) (+ main_i 152)))} is VALID [2019-01-31 14:39:10,160 INFO L273 TraceCheckUtils]: 13: Hoare triple {27966#(or (< (+ main_i 159) (* 4 main_n)) (= (select main_a (+ main_i 156)) 23) (< (* 4 main_n) (+ main_i 156)))} assume a[i] != 23;i := i + 4; {27959#(or (= 23 (select main_a (+ main_i 152))) (< (+ main_i 155) (* 4 main_n)) (< (* 4 main_n) (+ main_i 152)))} is VALID [2019-01-31 14:39:10,161 INFO L273 TraceCheckUtils]: 12: Hoare triple {27966#(or (< (+ main_i 159) (* 4 main_n)) (= (select main_a (+ main_i 156)) 23) (< (* 4 main_n) (+ main_i 156)))} assume i <= n * 4; {27966#(or (< (+ main_i 159) (* 4 main_n)) (= (select main_a (+ main_i 156)) 23) (< (* 4 main_n) (+ main_i 156)))} is VALID [2019-01-31 14:39:10,162 INFO L273 TraceCheckUtils]: 11: Hoare triple {27973#(or (< (+ main_i 163) (* 4 main_n)) (= (select main_a (+ main_i 160)) 23) (< (* 4 main_n) (+ main_i 160)))} assume a[i] != 23;i := i + 4; {27966#(or (< (+ main_i 159) (* 4 main_n)) (= (select main_a (+ main_i 156)) 23) (< (* 4 main_n) (+ main_i 156)))} is VALID [2019-01-31 14:39:10,163 INFO L273 TraceCheckUtils]: 10: Hoare triple {27973#(or (< (+ main_i 163) (* 4 main_n)) (= (select main_a (+ main_i 160)) 23) (< (* 4 main_n) (+ main_i 160)))} assume i <= n * 4; {27973#(or (< (+ main_i 163) (* 4 main_n)) (= (select main_a (+ main_i 160)) 23) (< (* 4 main_n) (+ main_i 160)))} is VALID [2019-01-31 14:39:10,164 INFO L273 TraceCheckUtils]: 9: Hoare triple {27980#(or (< (* 4 main_n) (+ main_i 164)) (< (+ main_i 167) (* 4 main_n)) (= (select main_a (+ main_i 164)) 23))} assume a[i] != 23;i := i + 4; {27973#(or (< (+ main_i 163) (* 4 main_n)) (= (select main_a (+ main_i 160)) 23) (< (* 4 main_n) (+ main_i 160)))} is VALID [2019-01-31 14:39:10,164 INFO L273 TraceCheckUtils]: 8: Hoare triple {27980#(or (< (* 4 main_n) (+ main_i 164)) (< (+ main_i 167) (* 4 main_n)) (= (select main_a (+ main_i 164)) 23))} assume i <= n * 4; {27980#(or (< (* 4 main_n) (+ main_i 164)) (< (+ main_i 167) (* 4 main_n)) (= (select main_a (+ main_i 164)) 23))} is VALID [2019-01-31 14:39:10,165 INFO L273 TraceCheckUtils]: 7: Hoare triple {27987#(or (= (select main_a (+ main_i 168)) 23) (< (* 4 main_n) (+ main_i 168)) (< (+ main_i 171) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {27980#(or (< (* 4 main_n) (+ main_i 164)) (< (+ main_i 167) (* 4 main_n)) (= (select main_a (+ main_i 164)) 23))} is VALID [2019-01-31 14:39:10,166 INFO L273 TraceCheckUtils]: 6: Hoare triple {27987#(or (= (select main_a (+ main_i 168)) 23) (< (* 4 main_n) (+ main_i 168)) (< (+ main_i 171) (* 4 main_n)))} assume i <= n * 4; {27987#(or (= (select main_a (+ main_i 168)) 23) (< (* 4 main_n) (+ main_i 168)) (< (+ main_i 171) (* 4 main_n)))} is VALID [2019-01-31 14:39:10,167 INFO L273 TraceCheckUtils]: 5: Hoare triple {27994#(or (< (* 4 main_n) (+ main_i 172)) (= (select main_a (+ main_i 172)) 23) (< (+ main_i 175) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {27987#(or (= (select main_a (+ main_i 168)) 23) (< (* 4 main_n) (+ main_i 168)) (< (+ main_i 171) (* 4 main_n)))} is VALID [2019-01-31 14:39:10,168 INFO L273 TraceCheckUtils]: 4: Hoare triple {27994#(or (< (* 4 main_n) (+ main_i 172)) (= (select main_a (+ main_i 172)) 23) (< (+ main_i 175) (* 4 main_n)))} assume i <= n * 4; {27994#(or (< (* 4 main_n) (+ main_i 172)) (= (select main_a (+ main_i 172)) 23) (< (+ main_i 175) (* 4 main_n)))} is VALID [2019-01-31 14:39:10,169 INFO L273 TraceCheckUtils]: 3: Hoare triple {28001#(or (= (select main_a (+ main_i 176)) 23) (< (+ main_i 179) (* 4 main_n)) (< (* 4 main_n) (+ main_i 176)))} assume a[i] != 23;i := i + 4; {27994#(or (< (* 4 main_n) (+ main_i 172)) (= (select main_a (+ main_i 172)) 23) (< (+ main_i 175) (* 4 main_n)))} is VALID [2019-01-31 14:39:10,169 INFO L273 TraceCheckUtils]: 2: Hoare triple {28001#(or (= (select main_a (+ main_i 176)) 23) (< (+ main_i 179) (* 4 main_n)) (< (* 4 main_n) (+ main_i 176)))} assume i <= n * 4; {28001#(or (= (select main_a (+ main_i 176)) 23) (< (+ main_i 179) (* 4 main_n)) (< (* 4 main_n) (+ main_i 176)))} is VALID [2019-01-31 14:39:10,170 INFO L273 TraceCheckUtils]: 1: Hoare triple {28008#(or (< (+ main_i 183) (* 4 main_n)) (= (select main_a (+ main_i 180)) 23) (< (* 4 main_n) (+ main_i 180)))} assume a[i] != 23;i := i + 4; {28001#(or (= (select main_a (+ main_i 176)) 23) (< (+ main_i 179) (* 4 main_n)) (< (* 4 main_n) (+ main_i 176)))} is VALID [2019-01-31 14:39:10,171 INFO L273 TraceCheckUtils]: 0: Hoare triple {27312#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {28008#(or (< (+ main_i 183) (* 4 main_n)) (= (select main_a (+ main_i 180)) 23) (< (* 4 main_n) (+ main_i 180)))} is VALID [2019-01-31 14:39:10,204 INFO L134 CoverageAnalysis]: Checked inductivity of 2070 backedges. 0 proven. 2070 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-31 14:39:10,223 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-01-31 14:39:10,223 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [48, 48, 48] total 143 [2019-01-31 14:39:10,223 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-01-31 14:39:10,223 INFO L78 Accepts]: Start accepts. Automaton has 97 states. Word has length 93 [2019-01-31 14:39:10,224 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-01-31 14:39:10,224 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 97 states. [2019-01-31 14:39:10,445 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 185 edges. 185 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-01-31 14:39:10,445 INFO L459 AbstractCegarLoop]: Interpolant automaton has 97 states [2019-01-31 14:39:10,446 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 97 interpolants. [2019-01-31 14:39:10,446 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2552, Invalid=18328, Unknown=0, NotChecked=0, Total=20880 [2019-01-31 14:39:10,447 INFO L87 Difference]: Start difference. First operand 94 states and 94 transitions. Second operand 97 states. [2019-01-31 14:39:25,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 14:39:25,543 INFO L93 Difference]: Finished difference Result 98 states and 98 transitions. [2019-01-31 14:39:25,543 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2019-01-31 14:39:25,543 INFO L78 Accepts]: Start accepts. Automaton has 97 states. Word has length 93 [2019-01-31 14:39:25,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-31 14:39:25,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 97 states. [2019-01-31 14:39:25,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 98 transitions. [2019-01-31 14:39:25,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 97 states. [2019-01-31 14:39:25,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 98 transitions. [2019-01-31 14:39:25,545 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 50 states and 98 transitions. [2019-01-31 14:39:25,653 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 14:39:25,655 INFO L225 Difference]: With dead ends: 98 [2019-01-31 14:39:25,655 INFO L226 Difference]: Without dead ends: 97 [2019-01-31 14:39:25,656 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 232 GetRequests, 88 SyntacticMatches, 1 SemanticMatches, 143 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4700 ImplicationChecksByTransitivity, 12.1s TimeCoverageRelationStatistics Valid=2552, Invalid=18328, Unknown=0, NotChecked=0, Total=20880 [2019-01-31 14:39:25,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2019-01-31 14:39:25,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 96. [2019-01-31 14:39:25,743 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-01-31 14:39:25,743 INFO L82 GeneralOperation]: Start isEquivalent. First operand 97 states. Second operand 96 states. [2019-01-31 14:39:25,743 INFO L74 IsIncluded]: Start isIncluded. First operand 97 states. Second operand 96 states. [2019-01-31 14:39:25,743 INFO L87 Difference]: Start difference. First operand 97 states. Second operand 96 states. [2019-01-31 14:39:25,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 14:39:25,745 INFO L93 Difference]: Finished difference Result 97 states and 97 transitions. [2019-01-31 14:39:25,745 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 97 transitions. [2019-01-31 14:39:25,745 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-31 14:39:25,745 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-01-31 14:39:25,745 INFO L74 IsIncluded]: Start isIncluded. First operand 96 states. Second operand 97 states. [2019-01-31 14:39:25,746 INFO L87 Difference]: Start difference. First operand 96 states. Second operand 97 states. [2019-01-31 14:39:25,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 14:39:25,746 INFO L93 Difference]: Finished difference Result 97 states and 97 transitions. [2019-01-31 14:39:25,747 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 97 transitions. [2019-01-31 14:39:25,747 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-31 14:39:25,747 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-01-31 14:39:25,747 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-01-31 14:39:25,747 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-01-31 14:39:25,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 96 states. [2019-01-31 14:39:25,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 96 transitions. [2019-01-31 14:39:25,748 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 96 transitions. Word has length 93 [2019-01-31 14:39:25,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-31 14:39:25,748 INFO L480 AbstractCegarLoop]: Abstraction has 96 states and 96 transitions. [2019-01-31 14:39:25,748 INFO L481 AbstractCegarLoop]: Interpolant automaton has 97 states. [2019-01-31 14:39:25,748 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 96 transitions. [2019-01-31 14:39:25,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2019-01-31 14:39:25,749 INFO L394 BasicCegarLoop]: Found error trace [2019-01-31 14:39:25,749 INFO L402 BasicCegarLoop]: trace histogram [47, 46, 1, 1] [2019-01-31 14:39:25,749 INFO L423 AbstractCegarLoop]: === Iteration 47 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-01-31 14:39:25,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-31 14:39:25,749 INFO L82 PathProgramCache]: Analyzing trace with hash 592137020, now seen corresponding path program 46 times [2019-01-31 14:39:25,749 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-01-31 14:39:25,750 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-31 14:39:25,750 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-01-31 14:39:25,750 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-31 14:39:25,750 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-01-31 14:39:25,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-31 14:39:26,207 WARN L181 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 17 [2019-01-31 14:39:28,852 INFO L273 TraceCheckUtils]: 0: Hoare triple {28494#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {28496#(and (or (<= 0 main_i) (< 46 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 46) (<= main_i 0)))} is VALID [2019-01-31 14:39:28,853 INFO L273 TraceCheckUtils]: 1: Hoare triple {28496#(and (or (<= 0 main_i) (< 46 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 46) (<= main_i 0)))} assume a[i] != 23;i := i + 4; {28497#(and (or (<= main_n 46) (<= main_i 4)) (or (< 46 main_n) (<= 4 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:28,854 INFO L273 TraceCheckUtils]: 2: Hoare triple {28497#(and (or (<= main_n 46) (<= main_i 4)) (or (< 46 main_n) (<= 4 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {28497#(and (or (<= main_n 46) (<= main_i 4)) (or (< 46 main_n) (<= 4 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:28,855 INFO L273 TraceCheckUtils]: 3: Hoare triple {28497#(and (or (<= main_n 46) (<= main_i 4)) (or (< 46 main_n) (<= 4 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {28498#(and (or (<= 8 main_i) (< 46 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 46) (<= main_i 8)))} is VALID [2019-01-31 14:39:28,856 INFO L273 TraceCheckUtils]: 4: Hoare triple {28498#(and (or (<= 8 main_i) (< 46 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 46) (<= main_i 8)))} assume i <= n * 4; {28498#(and (or (<= 8 main_i) (< 46 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 46) (<= main_i 8)))} is VALID [2019-01-31 14:39:28,857 INFO L273 TraceCheckUtils]: 5: Hoare triple {28498#(and (or (<= 8 main_i) (< 46 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 46) (<= main_i 8)))} assume a[i] != 23;i := i + 4; {28499#(and (or (< 46 main_n) (<= 12 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 46) (<= main_i 12)))} is VALID [2019-01-31 14:39:28,858 INFO L273 TraceCheckUtils]: 6: Hoare triple {28499#(and (or (< 46 main_n) (<= 12 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 46) (<= main_i 12)))} assume i <= n * 4; {28499#(and (or (< 46 main_n) (<= 12 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 46) (<= main_i 12)))} is VALID [2019-01-31 14:39:28,859 INFO L273 TraceCheckUtils]: 7: Hoare triple {28499#(and (or (< 46 main_n) (<= 12 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 46) (<= main_i 12)))} assume a[i] != 23;i := i + 4; {28500#(and (or (<= main_n 46) (<= main_i 16)) (or (< 46 main_n) (<= 16 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:28,859 INFO L273 TraceCheckUtils]: 8: Hoare triple {28500#(and (or (<= main_n 46) (<= main_i 16)) (or (< 46 main_n) (<= 16 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {28500#(and (or (<= main_n 46) (<= main_i 16)) (or (< 46 main_n) (<= 16 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:28,860 INFO L273 TraceCheckUtils]: 9: Hoare triple {28500#(and (or (<= main_n 46) (<= main_i 16)) (or (< 46 main_n) (<= 16 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {28501#(and (or (<= main_n 46) (<= main_i 20)) (or (< 46 main_n) (<= 20 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:28,861 INFO L273 TraceCheckUtils]: 10: Hoare triple {28501#(and (or (<= main_n 46) (<= main_i 20)) (or (< 46 main_n) (<= 20 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {28501#(and (or (<= main_n 46) (<= main_i 20)) (or (< 46 main_n) (<= 20 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:28,862 INFO L273 TraceCheckUtils]: 11: Hoare triple {28501#(and (or (<= main_n 46) (<= main_i 20)) (or (< 46 main_n) (<= 20 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {28502#(and (or (<= main_n 46) (<= main_i 24)) (or (< 46 main_n) (<= 24 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:28,863 INFO L273 TraceCheckUtils]: 12: Hoare triple {28502#(and (or (<= main_n 46) (<= main_i 24)) (or (< 46 main_n) (<= 24 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {28502#(and (or (<= main_n 46) (<= main_i 24)) (or (< 46 main_n) (<= 24 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:28,864 INFO L273 TraceCheckUtils]: 13: Hoare triple {28502#(and (or (<= main_n 46) (<= main_i 24)) (or (< 46 main_n) (<= 24 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {28503#(and (or (<= 28 main_i) (< 46 main_n)) (or (<= main_n 46) (<= main_i 28)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:28,865 INFO L273 TraceCheckUtils]: 14: Hoare triple {28503#(and (or (<= 28 main_i) (< 46 main_n)) (or (<= main_n 46) (<= main_i 28)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {28503#(and (or (<= 28 main_i) (< 46 main_n)) (or (<= main_n 46) (<= main_i 28)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:28,866 INFO L273 TraceCheckUtils]: 15: Hoare triple {28503#(and (or (<= 28 main_i) (< 46 main_n)) (or (<= main_n 46) (<= main_i 28)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {28504#(and (= 23 (select main_a (* 4 main_n))) (or (<= main_i 32) (<= main_n 46)) (or (<= 32 main_i) (< 46 main_n)))} is VALID [2019-01-31 14:39:28,866 INFO L273 TraceCheckUtils]: 16: Hoare triple {28504#(and (= 23 (select main_a (* 4 main_n))) (or (<= main_i 32) (<= main_n 46)) (or (<= 32 main_i) (< 46 main_n)))} assume i <= n * 4; {28504#(and (= 23 (select main_a (* 4 main_n))) (or (<= main_i 32) (<= main_n 46)) (or (<= 32 main_i) (< 46 main_n)))} is VALID [2019-01-31 14:39:28,867 INFO L273 TraceCheckUtils]: 17: Hoare triple {28504#(and (= 23 (select main_a (* 4 main_n))) (or (<= main_i 32) (<= main_n 46)) (or (<= 32 main_i) (< 46 main_n)))} assume a[i] != 23;i := i + 4; {28505#(and (or (< 46 main_n) (<= 36 main_i)) (or (<= main_i 36) (<= main_n 46)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:28,868 INFO L273 TraceCheckUtils]: 18: Hoare triple {28505#(and (or (< 46 main_n) (<= 36 main_i)) (or (<= main_i 36) (<= main_n 46)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {28505#(and (or (< 46 main_n) (<= 36 main_i)) (or (<= main_i 36) (<= main_n 46)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:28,869 INFO L273 TraceCheckUtils]: 19: Hoare triple {28505#(and (or (< 46 main_n) (<= 36 main_i)) (or (<= main_i 36) (<= main_n 46)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {28506#(and (or (<= main_n 46) (<= main_i 40)) (= 23 (select main_a (* 4 main_n))) (or (<= 40 main_i) (< 46 main_n)))} is VALID [2019-01-31 14:39:28,870 INFO L273 TraceCheckUtils]: 20: Hoare triple {28506#(and (or (<= main_n 46) (<= main_i 40)) (= 23 (select main_a (* 4 main_n))) (or (<= 40 main_i) (< 46 main_n)))} assume i <= n * 4; {28506#(and (or (<= main_n 46) (<= main_i 40)) (= 23 (select main_a (* 4 main_n))) (or (<= 40 main_i) (< 46 main_n)))} is VALID [2019-01-31 14:39:28,871 INFO L273 TraceCheckUtils]: 21: Hoare triple {28506#(and (or (<= main_n 46) (<= main_i 40)) (= 23 (select main_a (* 4 main_n))) (or (<= 40 main_i) (< 46 main_n)))} assume a[i] != 23;i := i + 4; {28507#(and (or (<= 44 main_i) (< 46 main_n)) (or (<= main_n 46) (<= main_i 44)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:28,872 INFO L273 TraceCheckUtils]: 22: Hoare triple {28507#(and (or (<= 44 main_i) (< 46 main_n)) (or (<= main_n 46) (<= main_i 44)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {28507#(and (or (<= 44 main_i) (< 46 main_n)) (or (<= main_n 46) (<= main_i 44)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:28,873 INFO L273 TraceCheckUtils]: 23: Hoare triple {28507#(and (or (<= 44 main_i) (< 46 main_n)) (or (<= main_n 46) (<= main_i 44)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {28508#(and (or (<= main_n 46) (<= main_i 48)) (or (<= 48 main_i) (< 46 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:28,873 INFO L273 TraceCheckUtils]: 24: Hoare triple {28508#(and (or (<= main_n 46) (<= main_i 48)) (or (<= 48 main_i) (< 46 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {28508#(and (or (<= main_n 46) (<= main_i 48)) (or (<= 48 main_i) (< 46 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:28,874 INFO L273 TraceCheckUtils]: 25: Hoare triple {28508#(and (or (<= main_n 46) (<= main_i 48)) (or (<= 48 main_i) (< 46 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {28509#(and (or (< 46 main_n) (<= 52 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 46) (<= main_i 52)))} is VALID [2019-01-31 14:39:28,875 INFO L273 TraceCheckUtils]: 26: Hoare triple {28509#(and (or (< 46 main_n) (<= 52 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 46) (<= main_i 52)))} assume i <= n * 4; {28509#(and (or (< 46 main_n) (<= 52 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 46) (<= main_i 52)))} is VALID [2019-01-31 14:39:28,876 INFO L273 TraceCheckUtils]: 27: Hoare triple {28509#(and (or (< 46 main_n) (<= 52 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 46) (<= main_i 52)))} assume a[i] != 23;i := i + 4; {28510#(and (or (< 46 main_n) (<= 56 main_i)) (or (<= main_n 46) (<= main_i 56)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:28,877 INFO L273 TraceCheckUtils]: 28: Hoare triple {28510#(and (or (< 46 main_n) (<= 56 main_i)) (or (<= main_n 46) (<= main_i 56)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {28510#(and (or (< 46 main_n) (<= 56 main_i)) (or (<= main_n 46) (<= main_i 56)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:28,878 INFO L273 TraceCheckUtils]: 29: Hoare triple {28510#(and (or (< 46 main_n) (<= 56 main_i)) (or (<= main_n 46) (<= main_i 56)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {28511#(and (or (< 46 main_n) (<= 60 main_i)) (or (<= main_n 46) (<= main_i 60)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:28,879 INFO L273 TraceCheckUtils]: 30: Hoare triple {28511#(and (or (< 46 main_n) (<= 60 main_i)) (or (<= main_n 46) (<= main_i 60)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {28511#(and (or (< 46 main_n) (<= 60 main_i)) (or (<= main_n 46) (<= main_i 60)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:28,880 INFO L273 TraceCheckUtils]: 31: Hoare triple {28511#(and (or (< 46 main_n) (<= 60 main_i)) (or (<= main_n 46) (<= main_i 60)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {28512#(and (or (<= main_n 46) (<= main_i 64)) (or (<= 64 main_i) (< 46 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:28,880 INFO L273 TraceCheckUtils]: 32: Hoare triple {28512#(and (or (<= main_n 46) (<= main_i 64)) (or (<= 64 main_i) (< 46 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {28512#(and (or (<= main_n 46) (<= main_i 64)) (or (<= 64 main_i) (< 46 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:28,881 INFO L273 TraceCheckUtils]: 33: Hoare triple {28512#(and (or (<= main_n 46) (<= main_i 64)) (or (<= 64 main_i) (< 46 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {28513#(and (or (< 46 main_n) (<= 68 main_i)) (or (<= main_n 46) (<= main_i 68)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:28,882 INFO L273 TraceCheckUtils]: 34: Hoare triple {28513#(and (or (< 46 main_n) (<= 68 main_i)) (or (<= main_n 46) (<= main_i 68)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {28513#(and (or (< 46 main_n) (<= 68 main_i)) (or (<= main_n 46) (<= main_i 68)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:28,883 INFO L273 TraceCheckUtils]: 35: Hoare triple {28513#(and (or (< 46 main_n) (<= 68 main_i)) (or (<= main_n 46) (<= main_i 68)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {28514#(and (or (<= main_n 46) (<= main_i 72)) (= 23 (select main_a (* 4 main_n))) (or (<= 72 main_i) (< 46 main_n)))} is VALID [2019-01-31 14:39:28,884 INFO L273 TraceCheckUtils]: 36: Hoare triple {28514#(and (or (<= main_n 46) (<= main_i 72)) (= 23 (select main_a (* 4 main_n))) (or (<= 72 main_i) (< 46 main_n)))} assume i <= n * 4; {28514#(and (or (<= main_n 46) (<= main_i 72)) (= 23 (select main_a (* 4 main_n))) (or (<= 72 main_i) (< 46 main_n)))} is VALID [2019-01-31 14:39:28,885 INFO L273 TraceCheckUtils]: 37: Hoare triple {28514#(and (or (<= main_n 46) (<= main_i 72)) (= 23 (select main_a (* 4 main_n))) (or (<= 72 main_i) (< 46 main_n)))} assume a[i] != 23;i := i + 4; {28515#(and (or (<= 76 main_i) (< 46 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 76) (<= main_n 46)))} is VALID [2019-01-31 14:39:28,887 INFO L273 TraceCheckUtils]: 38: Hoare triple {28515#(and (or (<= 76 main_i) (< 46 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 76) (<= main_n 46)))} assume i <= n * 4; {28515#(and (or (<= 76 main_i) (< 46 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 76) (<= main_n 46)))} is VALID [2019-01-31 14:39:28,888 INFO L273 TraceCheckUtils]: 39: Hoare triple {28515#(and (or (<= 76 main_i) (< 46 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 76) (<= main_n 46)))} assume a[i] != 23;i := i + 4; {28516#(and (or (<= 80 main_i) (< 46 main_n)) (or (<= main_n 46) (<= main_i 80)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:28,889 INFO L273 TraceCheckUtils]: 40: Hoare triple {28516#(and (or (<= 80 main_i) (< 46 main_n)) (or (<= main_n 46) (<= main_i 80)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {28516#(and (or (<= 80 main_i) (< 46 main_n)) (or (<= main_n 46) (<= main_i 80)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:28,890 INFO L273 TraceCheckUtils]: 41: Hoare triple {28516#(and (or (<= 80 main_i) (< 46 main_n)) (or (<= main_n 46) (<= main_i 80)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {28517#(and (or (<= main_n 46) (<= main_i 84)) (= 23 (select main_a (* 4 main_n))) (or (< 46 main_n) (<= 84 main_i)))} is VALID [2019-01-31 14:39:28,890 INFO L273 TraceCheckUtils]: 42: Hoare triple {28517#(and (or (<= main_n 46) (<= main_i 84)) (= 23 (select main_a (* 4 main_n))) (or (< 46 main_n) (<= 84 main_i)))} assume i <= n * 4; {28517#(and (or (<= main_n 46) (<= main_i 84)) (= 23 (select main_a (* 4 main_n))) (or (< 46 main_n) (<= 84 main_i)))} is VALID [2019-01-31 14:39:28,891 INFO L273 TraceCheckUtils]: 43: Hoare triple {28517#(and (or (<= main_n 46) (<= main_i 84)) (= 23 (select main_a (* 4 main_n))) (or (< 46 main_n) (<= 84 main_i)))} assume a[i] != 23;i := i + 4; {28518#(and (or (< 46 main_n) (<= 88 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 46) (<= main_i 88)))} is VALID [2019-01-31 14:39:28,892 INFO L273 TraceCheckUtils]: 44: Hoare triple {28518#(and (or (< 46 main_n) (<= 88 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 46) (<= main_i 88)))} assume i <= n * 4; {28518#(and (or (< 46 main_n) (<= 88 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 46) (<= main_i 88)))} is VALID [2019-01-31 14:39:28,893 INFO L273 TraceCheckUtils]: 45: Hoare triple {28518#(and (or (< 46 main_n) (<= 88 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 46) (<= main_i 88)))} assume a[i] != 23;i := i + 4; {28519#(and (or (<= main_i 92) (<= main_n 46)) (= 23 (select main_a (* 4 main_n))) (or (< 46 main_n) (<= 92 main_i)))} is VALID [2019-01-31 14:39:28,894 INFO L273 TraceCheckUtils]: 46: Hoare triple {28519#(and (or (<= main_i 92) (<= main_n 46)) (= 23 (select main_a (* 4 main_n))) (or (< 46 main_n) (<= 92 main_i)))} assume i <= n * 4; {28519#(and (or (<= main_i 92) (<= main_n 46)) (= 23 (select main_a (* 4 main_n))) (or (< 46 main_n) (<= 92 main_i)))} is VALID [2019-01-31 14:39:28,895 INFO L273 TraceCheckUtils]: 47: Hoare triple {28519#(and (or (<= main_i 92) (<= main_n 46)) (= 23 (select main_a (* 4 main_n))) (or (< 46 main_n) (<= 92 main_i)))} assume a[i] != 23;i := i + 4; {28520#(and (or (<= main_i 96) (<= main_n 46)) (or (<= 96 main_i) (< 46 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:28,896 INFO L273 TraceCheckUtils]: 48: Hoare triple {28520#(and (or (<= main_i 96) (<= main_n 46)) (or (<= 96 main_i) (< 46 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {28520#(and (or (<= main_i 96) (<= main_n 46)) (or (<= 96 main_i) (< 46 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:28,897 INFO L273 TraceCheckUtils]: 49: Hoare triple {28520#(and (or (<= main_i 96) (<= main_n 46)) (or (<= 96 main_i) (< 46 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {28521#(and (or (<= 100 main_i) (< 46 main_n)) (or (<= main_n 46) (<= main_i 100)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:28,897 INFO L273 TraceCheckUtils]: 50: Hoare triple {28521#(and (or (<= 100 main_i) (< 46 main_n)) (or (<= main_n 46) (<= main_i 100)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {28521#(and (or (<= 100 main_i) (< 46 main_n)) (or (<= main_n 46) (<= main_i 100)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:28,898 INFO L273 TraceCheckUtils]: 51: Hoare triple {28521#(and (or (<= 100 main_i) (< 46 main_n)) (or (<= main_n 46) (<= main_i 100)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {28522#(and (or (<= 104 main_i) (< 46 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 104) (<= main_n 46)))} is VALID [2019-01-31 14:39:28,899 INFO L273 TraceCheckUtils]: 52: Hoare triple {28522#(and (or (<= 104 main_i) (< 46 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 104) (<= main_n 46)))} assume i <= n * 4; {28522#(and (or (<= 104 main_i) (< 46 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 104) (<= main_n 46)))} is VALID [2019-01-31 14:39:28,900 INFO L273 TraceCheckUtils]: 53: Hoare triple {28522#(and (or (<= 104 main_i) (< 46 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 104) (<= main_n 46)))} assume a[i] != 23;i := i + 4; {28523#(and (or (<= main_n 46) (<= main_i 108)) (or (<= 108 main_i) (< 46 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:28,901 INFO L273 TraceCheckUtils]: 54: Hoare triple {28523#(and (or (<= main_n 46) (<= main_i 108)) (or (<= 108 main_i) (< 46 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {28523#(and (or (<= main_n 46) (<= main_i 108)) (or (<= 108 main_i) (< 46 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:28,902 INFO L273 TraceCheckUtils]: 55: Hoare triple {28523#(and (or (<= main_n 46) (<= main_i 108)) (or (<= 108 main_i) (< 46 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {28524#(and (or (< 46 main_n) (<= 112 main_i)) (or (<= main_n 46) (<= main_i 112)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:28,903 INFO L273 TraceCheckUtils]: 56: Hoare triple {28524#(and (or (< 46 main_n) (<= 112 main_i)) (or (<= main_n 46) (<= main_i 112)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {28524#(and (or (< 46 main_n) (<= 112 main_i)) (or (<= main_n 46) (<= main_i 112)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:28,904 INFO L273 TraceCheckUtils]: 57: Hoare triple {28524#(and (or (< 46 main_n) (<= 112 main_i)) (or (<= main_n 46) (<= main_i 112)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {28525#(and (or (<= main_n 46) (<= main_i 116)) (or (<= 116 main_i) (< 46 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:28,904 INFO L273 TraceCheckUtils]: 58: Hoare triple {28525#(and (or (<= main_n 46) (<= main_i 116)) (or (<= 116 main_i) (< 46 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {28525#(and (or (<= main_n 46) (<= main_i 116)) (or (<= 116 main_i) (< 46 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:28,905 INFO L273 TraceCheckUtils]: 59: Hoare triple {28525#(and (or (<= main_n 46) (<= main_i 116)) (or (<= 116 main_i) (< 46 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {28526#(and (or (<= main_n 46) (<= main_i 120)) (or (<= 120 main_i) (< 46 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:28,906 INFO L273 TraceCheckUtils]: 60: Hoare triple {28526#(and (or (<= main_n 46) (<= main_i 120)) (or (<= 120 main_i) (< 46 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {28526#(and (or (<= main_n 46) (<= main_i 120)) (or (<= 120 main_i) (< 46 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:28,907 INFO L273 TraceCheckUtils]: 61: Hoare triple {28526#(and (or (<= main_n 46) (<= main_i 120)) (or (<= 120 main_i) (< 46 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {28527#(and (or (<= 124 main_i) (< 46 main_n)) (or (<= main_n 46) (<= main_i 124)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:28,908 INFO L273 TraceCheckUtils]: 62: Hoare triple {28527#(and (or (<= 124 main_i) (< 46 main_n)) (or (<= main_n 46) (<= main_i 124)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {28527#(and (or (<= 124 main_i) (< 46 main_n)) (or (<= main_n 46) (<= main_i 124)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:28,909 INFO L273 TraceCheckUtils]: 63: Hoare triple {28527#(and (or (<= 124 main_i) (< 46 main_n)) (or (<= main_n 46) (<= main_i 124)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {28528#(and (or (< 46 main_n) (<= 128 main_i)) (or (<= main_n 46) (<= main_i 128)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:28,910 INFO L273 TraceCheckUtils]: 64: Hoare triple {28528#(and (or (< 46 main_n) (<= 128 main_i)) (or (<= main_n 46) (<= main_i 128)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {28528#(and (or (< 46 main_n) (<= 128 main_i)) (or (<= main_n 46) (<= main_i 128)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:28,911 INFO L273 TraceCheckUtils]: 65: Hoare triple {28528#(and (or (< 46 main_n) (<= 128 main_i)) (or (<= main_n 46) (<= main_i 128)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {28529#(and (or (<= main_n 46) (<= main_i 132)) (or (<= 132 main_i) (< 46 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:28,911 INFO L273 TraceCheckUtils]: 66: Hoare triple {28529#(and (or (<= main_n 46) (<= main_i 132)) (or (<= 132 main_i) (< 46 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {28529#(and (or (<= main_n 46) (<= main_i 132)) (or (<= 132 main_i) (< 46 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:28,912 INFO L273 TraceCheckUtils]: 67: Hoare triple {28529#(and (or (<= main_n 46) (<= main_i 132)) (or (<= 132 main_i) (< 46 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {28530#(and (or (<= main_n 46) (<= main_i 136)) (or (<= 136 main_i) (< 46 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:28,913 INFO L273 TraceCheckUtils]: 68: Hoare triple {28530#(and (or (<= main_n 46) (<= main_i 136)) (or (<= 136 main_i) (< 46 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {28530#(and (or (<= main_n 46) (<= main_i 136)) (or (<= 136 main_i) (< 46 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:28,914 INFO L273 TraceCheckUtils]: 69: Hoare triple {28530#(and (or (<= main_n 46) (<= main_i 136)) (or (<= 136 main_i) (< 46 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {28531#(and (or (<= main_n 46) (<= main_i 140)) (or (< 46 main_n) (<= 140 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:28,915 INFO L273 TraceCheckUtils]: 70: Hoare triple {28531#(and (or (<= main_n 46) (<= main_i 140)) (or (< 46 main_n) (<= 140 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {28531#(and (or (<= main_n 46) (<= main_i 140)) (or (< 46 main_n) (<= 140 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:28,916 INFO L273 TraceCheckUtils]: 71: Hoare triple {28531#(and (or (<= main_n 46) (<= main_i 140)) (or (< 46 main_n) (<= 140 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {28532#(and (or (<= 144 main_i) (< 46 main_n)) (or (<= main_n 46) (<= main_i 144)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:28,917 INFO L273 TraceCheckUtils]: 72: Hoare triple {28532#(and (or (<= 144 main_i) (< 46 main_n)) (or (<= main_n 46) (<= main_i 144)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {28532#(and (or (<= 144 main_i) (< 46 main_n)) (or (<= main_n 46) (<= main_i 144)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:28,918 INFO L273 TraceCheckUtils]: 73: Hoare triple {28532#(and (or (<= 144 main_i) (< 46 main_n)) (or (<= main_n 46) (<= main_i 144)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {28533#(and (or (<= main_n 46) (<= main_i 148)) (or (< 46 main_n) (<= 148 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:28,918 INFO L273 TraceCheckUtils]: 74: Hoare triple {28533#(and (or (<= main_n 46) (<= main_i 148)) (or (< 46 main_n) (<= 148 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {28533#(and (or (<= main_n 46) (<= main_i 148)) (or (< 46 main_n) (<= 148 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:28,919 INFO L273 TraceCheckUtils]: 75: Hoare triple {28533#(and (or (<= main_n 46) (<= main_i 148)) (or (< 46 main_n) (<= 148 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {28534#(and (or (<= main_n 46) (<= main_i 152)) (or (<= 152 main_i) (< 46 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:28,920 INFO L273 TraceCheckUtils]: 76: Hoare triple {28534#(and (or (<= main_n 46) (<= main_i 152)) (or (<= 152 main_i) (< 46 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {28534#(and (or (<= main_n 46) (<= main_i 152)) (or (<= 152 main_i) (< 46 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:28,921 INFO L273 TraceCheckUtils]: 77: Hoare triple {28534#(and (or (<= main_n 46) (<= main_i 152)) (or (<= 152 main_i) (< 46 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {28535#(and (or (<= 156 main_i) (< 46 main_n)) (or (<= main_n 46) (<= main_i 156)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:28,922 INFO L273 TraceCheckUtils]: 78: Hoare triple {28535#(and (or (<= 156 main_i) (< 46 main_n)) (or (<= main_n 46) (<= main_i 156)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {28535#(and (or (<= 156 main_i) (< 46 main_n)) (or (<= main_n 46) (<= main_i 156)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:28,923 INFO L273 TraceCheckUtils]: 79: Hoare triple {28535#(and (or (<= 156 main_i) (< 46 main_n)) (or (<= main_n 46) (<= main_i 156)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {28536#(and (or (<= main_n 46) (<= main_i 160)) (= 23 (select main_a (* 4 main_n))) (or (<= 160 main_i) (< 46 main_n)))} is VALID [2019-01-31 14:39:28,924 INFO L273 TraceCheckUtils]: 80: Hoare triple {28536#(and (or (<= main_n 46) (<= main_i 160)) (= 23 (select main_a (* 4 main_n))) (or (<= 160 main_i) (< 46 main_n)))} assume i <= n * 4; {28536#(and (or (<= main_n 46) (<= main_i 160)) (= 23 (select main_a (* 4 main_n))) (or (<= 160 main_i) (< 46 main_n)))} is VALID [2019-01-31 14:39:28,925 INFO L273 TraceCheckUtils]: 81: Hoare triple {28536#(and (or (<= main_n 46) (<= main_i 160)) (= 23 (select main_a (* 4 main_n))) (or (<= 160 main_i) (< 46 main_n)))} assume a[i] != 23;i := i + 4; {28537#(and (or (<= 164 main_i) (< 46 main_n)) (or (<= main_n 46) (<= main_i 164)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:28,925 INFO L273 TraceCheckUtils]: 82: Hoare triple {28537#(and (or (<= 164 main_i) (< 46 main_n)) (or (<= main_n 46) (<= main_i 164)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {28537#(and (or (<= 164 main_i) (< 46 main_n)) (or (<= main_n 46) (<= main_i 164)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:28,926 INFO L273 TraceCheckUtils]: 83: Hoare triple {28537#(and (or (<= 164 main_i) (< 46 main_n)) (or (<= main_n 46) (<= main_i 164)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {28538#(and (= 23 (select main_a (* 4 main_n))) (or (<= 168 main_i) (< 46 main_n)) (or (<= main_n 46) (<= main_i 168)))} is VALID [2019-01-31 14:39:28,927 INFO L273 TraceCheckUtils]: 84: Hoare triple {28538#(and (= 23 (select main_a (* 4 main_n))) (or (<= 168 main_i) (< 46 main_n)) (or (<= main_n 46) (<= main_i 168)))} assume i <= n * 4; {28538#(and (= 23 (select main_a (* 4 main_n))) (or (<= 168 main_i) (< 46 main_n)) (or (<= main_n 46) (<= main_i 168)))} is VALID [2019-01-31 14:39:28,928 INFO L273 TraceCheckUtils]: 85: Hoare triple {28538#(and (= 23 (select main_a (* 4 main_n))) (or (<= 168 main_i) (< 46 main_n)) (or (<= main_n 46) (<= main_i 168)))} assume a[i] != 23;i := i + 4; {28539#(and (or (<= main_n 46) (<= main_i 172)) (or (< 46 main_n) (<= 172 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:28,929 INFO L273 TraceCheckUtils]: 86: Hoare triple {28539#(and (or (<= main_n 46) (<= main_i 172)) (or (< 46 main_n) (<= 172 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {28539#(and (or (<= main_n 46) (<= main_i 172)) (or (< 46 main_n) (<= 172 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:28,930 INFO L273 TraceCheckUtils]: 87: Hoare triple {28539#(and (or (<= main_n 46) (<= main_i 172)) (or (< 46 main_n) (<= 172 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {28540#(and (or (<= main_n 46) (<= main_i 176)) (= 23 (select main_a (* 4 main_n))) (or (<= 176 main_i) (< 46 main_n)))} is VALID [2019-01-31 14:39:28,931 INFO L273 TraceCheckUtils]: 88: Hoare triple {28540#(and (or (<= main_n 46) (<= main_i 176)) (= 23 (select main_a (* 4 main_n))) (or (<= 176 main_i) (< 46 main_n)))} assume i <= n * 4; {28540#(and (or (<= main_n 46) (<= main_i 176)) (= 23 (select main_a (* 4 main_n))) (or (<= 176 main_i) (< 46 main_n)))} is VALID [2019-01-31 14:39:28,932 INFO L273 TraceCheckUtils]: 89: Hoare triple {28540#(and (or (<= main_n 46) (<= main_i 176)) (= 23 (select main_a (* 4 main_n))) (or (<= 176 main_i) (< 46 main_n)))} assume a[i] != 23;i := i + 4; {28541#(and (or (<= main_n 46) (<= main_i 180)) (= 23 (select main_a (* 4 main_n))) (or (< 46 main_n) (<= 180 main_i)))} is VALID [2019-01-31 14:39:28,932 INFO L273 TraceCheckUtils]: 90: Hoare triple {28541#(and (or (<= main_n 46) (<= main_i 180)) (= 23 (select main_a (* 4 main_n))) (or (< 46 main_n) (<= 180 main_i)))} assume i <= n * 4; {28541#(and (or (<= main_n 46) (<= main_i 180)) (= 23 (select main_a (* 4 main_n))) (or (< 46 main_n) (<= 180 main_i)))} is VALID [2019-01-31 14:39:28,934 INFO L273 TraceCheckUtils]: 91: Hoare triple {28541#(and (or (<= main_n 46) (<= main_i 180)) (= 23 (select main_a (* 4 main_n))) (or (< 46 main_n) (<= 180 main_i)))} assume a[i] != 23;i := i + 4; {28542#(and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (or (= (* 4 main_n) main_i) (and (or (<= main_n 46) (<= main_i 184)) (or (<= (* 4 main_n) main_i) (< 46 main_n)))))} is VALID [2019-01-31 14:39:28,935 INFO L273 TraceCheckUtils]: 92: Hoare triple {28542#(and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (or (= (* 4 main_n) main_i) (and (or (<= main_n 46) (<= main_i 184)) (or (<= (* 4 main_n) main_i) (< 46 main_n)))))} assume i <= n * 4; {28543#(and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (or (= (* 4 main_n) main_i) (and (<= main_i 184) (< 46 main_n))))} is VALID [2019-01-31 14:39:28,936 INFO L273 TraceCheckUtils]: 93: Hoare triple {28543#(and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (or (= (* 4 main_n) main_i) (and (<= main_i 184) (< 46 main_n))))} assume a[i] != 23;i := i + 4; {28544#(and (<= main_i 188) (< 46 main_n))} is VALID [2019-01-31 14:39:28,936 INFO L273 TraceCheckUtils]: 94: Hoare triple {28544#(and (<= main_i 188) (< 46 main_n))} assume !(i <= n * 4); {28495#false} is VALID [2019-01-31 14:39:28,974 INFO L134 CoverageAnalysis]: Checked inductivity of 2162 backedges. 0 proven. 2162 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-31 14:39:28,974 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-31 14:39:28,974 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-01-31 14:39:28,974 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-01-31 14:39:28,974 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-01-31 14:39:28,974 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-31 14:39:28,975 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 14:39:28,985 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-31 14:39:28,985 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2019-01-31 14:39:29,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-31 14:39:29,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-31 14:39:29,026 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-31 14:39:29,041 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 14:39:29,043 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-01-31 14:39:29,050 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-31 14:39:29,050 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2019-01-31 14:39:29,052 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-01-31 14:39:29,052 WARN L398 uantifierElimination]: Input elimination task: ∃ [v_main_a_50]. (and (= (store v_main_a_50 (* 4 main_n) 23) main_a) (= main_i 0)) [2019-01-31 14:39:29,052 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2019-01-31 14:39:32,523 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2019-01-31 14:39:32,524 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-01-31 14:39:32,530 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-31 14:39:32,531 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2019-01-31 14:39:32,533 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-01-31 14:39:32,533 WARN L398 uantifierElimination]: Input elimination task: ∃ [main_a]. (let ((.cse0 (* 4 main_n))) (and (not (= (select main_a 184) 23)) (<= main_i 188) (<= 184 .cse0) (= 23 (select main_a .cse0)))) [2019-01-31 14:39:32,533 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (let ((.cse0 (* 4 main_n))) (and (not (= 184 .cse0)) (<= main_i 188) (<= 184 .cse0))) [2019-01-31 14:39:32,591 INFO L273 TraceCheckUtils]: 0: Hoare triple {28494#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {28548#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:32,592 INFO L273 TraceCheckUtils]: 1: Hoare triple {28548#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {28552#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2019-01-31 14:39:32,592 INFO L273 TraceCheckUtils]: 2: Hoare triple {28552#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume i <= n * 4; {28552#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2019-01-31 14:39:32,593 INFO L273 TraceCheckUtils]: 3: Hoare triple {28552#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume a[i] != 23;i := i + 4; {28559#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:32,594 INFO L273 TraceCheckUtils]: 4: Hoare triple {28559#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {28559#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:32,594 INFO L273 TraceCheckUtils]: 5: Hoare triple {28559#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {28566#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2019-01-31 14:39:32,595 INFO L273 TraceCheckUtils]: 6: Hoare triple {28566#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume i <= n * 4; {28566#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2019-01-31 14:39:32,596 INFO L273 TraceCheckUtils]: 7: Hoare triple {28566#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume a[i] != 23;i := i + 4; {28573#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:32,596 INFO L273 TraceCheckUtils]: 8: Hoare triple {28573#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {28573#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:32,597 INFO L273 TraceCheckUtils]: 9: Hoare triple {28573#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {28580#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:32,598 INFO L273 TraceCheckUtils]: 10: Hoare triple {28580#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {28580#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:32,598 INFO L273 TraceCheckUtils]: 11: Hoare triple {28580#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {28587#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:32,599 INFO L273 TraceCheckUtils]: 12: Hoare triple {28587#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {28587#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:32,600 INFO L273 TraceCheckUtils]: 13: Hoare triple {28587#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {28594#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:32,600 INFO L273 TraceCheckUtils]: 14: Hoare triple {28594#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {28594#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:32,601 INFO L273 TraceCheckUtils]: 15: Hoare triple {28594#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {28601#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:32,602 INFO L273 TraceCheckUtils]: 16: Hoare triple {28601#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {28601#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:32,602 INFO L273 TraceCheckUtils]: 17: Hoare triple {28601#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {28608#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:32,603 INFO L273 TraceCheckUtils]: 18: Hoare triple {28608#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {28608#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:32,604 INFO L273 TraceCheckUtils]: 19: Hoare triple {28608#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {28615#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:32,604 INFO L273 TraceCheckUtils]: 20: Hoare triple {28615#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {28615#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:32,605 INFO L273 TraceCheckUtils]: 21: Hoare triple {28615#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {28622#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:32,606 INFO L273 TraceCheckUtils]: 22: Hoare triple {28622#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {28622#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:32,606 INFO L273 TraceCheckUtils]: 23: Hoare triple {28622#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {28629#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:32,607 INFO L273 TraceCheckUtils]: 24: Hoare triple {28629#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {28629#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:32,608 INFO L273 TraceCheckUtils]: 25: Hoare triple {28629#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {28636#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:32,608 INFO L273 TraceCheckUtils]: 26: Hoare triple {28636#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {28636#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:32,609 INFO L273 TraceCheckUtils]: 27: Hoare triple {28636#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {28643#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:32,610 INFO L273 TraceCheckUtils]: 28: Hoare triple {28643#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {28643#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:32,610 INFO L273 TraceCheckUtils]: 29: Hoare triple {28643#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {28650#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:32,611 INFO L273 TraceCheckUtils]: 30: Hoare triple {28650#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {28650#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:32,612 INFO L273 TraceCheckUtils]: 31: Hoare triple {28650#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {28657#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:32,612 INFO L273 TraceCheckUtils]: 32: Hoare triple {28657#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {28657#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:32,613 INFO L273 TraceCheckUtils]: 33: Hoare triple {28657#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {28664#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:32,614 INFO L273 TraceCheckUtils]: 34: Hoare triple {28664#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {28664#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:32,614 INFO L273 TraceCheckUtils]: 35: Hoare triple {28664#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {28671#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:32,615 INFO L273 TraceCheckUtils]: 36: Hoare triple {28671#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {28671#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:32,616 INFO L273 TraceCheckUtils]: 37: Hoare triple {28671#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {28678#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:32,616 INFO L273 TraceCheckUtils]: 38: Hoare triple {28678#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {28678#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:32,617 INFO L273 TraceCheckUtils]: 39: Hoare triple {28678#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {28685#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} is VALID [2019-01-31 14:39:32,618 INFO L273 TraceCheckUtils]: 40: Hoare triple {28685#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} assume i <= n * 4; {28685#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} is VALID [2019-01-31 14:39:32,618 INFO L273 TraceCheckUtils]: 41: Hoare triple {28685#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} assume a[i] != 23;i := i + 4; {28692#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:32,619 INFO L273 TraceCheckUtils]: 42: Hoare triple {28692#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {28692#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:32,620 INFO L273 TraceCheckUtils]: 43: Hoare triple {28692#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {28699#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:32,620 INFO L273 TraceCheckUtils]: 44: Hoare triple {28699#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {28699#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:32,621 INFO L273 TraceCheckUtils]: 45: Hoare triple {28699#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {28706#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:32,622 INFO L273 TraceCheckUtils]: 46: Hoare triple {28706#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {28706#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:32,622 INFO L273 TraceCheckUtils]: 47: Hoare triple {28706#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {28713#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:32,623 INFO L273 TraceCheckUtils]: 48: Hoare triple {28713#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {28713#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:32,624 INFO L273 TraceCheckUtils]: 49: Hoare triple {28713#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {28720#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:32,624 INFO L273 TraceCheckUtils]: 50: Hoare triple {28720#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {28720#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:32,625 INFO L273 TraceCheckUtils]: 51: Hoare triple {28720#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {28727#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:32,626 INFO L273 TraceCheckUtils]: 52: Hoare triple {28727#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {28727#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:32,626 INFO L273 TraceCheckUtils]: 53: Hoare triple {28727#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {28734#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:32,627 INFO L273 TraceCheckUtils]: 54: Hoare triple {28734#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {28734#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:32,628 INFO L273 TraceCheckUtils]: 55: Hoare triple {28734#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {28741#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:32,628 INFO L273 TraceCheckUtils]: 56: Hoare triple {28741#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {28741#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:32,629 INFO L273 TraceCheckUtils]: 57: Hoare triple {28741#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {28748#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:32,630 INFO L273 TraceCheckUtils]: 58: Hoare triple {28748#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {28748#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:32,630 INFO L273 TraceCheckUtils]: 59: Hoare triple {28748#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {28755#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:32,631 INFO L273 TraceCheckUtils]: 60: Hoare triple {28755#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {28755#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:32,632 INFO L273 TraceCheckUtils]: 61: Hoare triple {28755#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {28762#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:32,632 INFO L273 TraceCheckUtils]: 62: Hoare triple {28762#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {28762#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:32,633 INFO L273 TraceCheckUtils]: 63: Hoare triple {28762#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {28769#(and (= main_i 128) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:32,634 INFO L273 TraceCheckUtils]: 64: Hoare triple {28769#(and (= main_i 128) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {28769#(and (= main_i 128) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:32,635 INFO L273 TraceCheckUtils]: 65: Hoare triple {28769#(and (= main_i 128) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {28776#(and (= main_i 132) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:32,635 INFO L273 TraceCheckUtils]: 66: Hoare triple {28776#(and (= main_i 132) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {28776#(and (= main_i 132) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:32,636 INFO L273 TraceCheckUtils]: 67: Hoare triple {28776#(and (= main_i 132) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {28783#(and (= main_i 136) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:32,637 INFO L273 TraceCheckUtils]: 68: Hoare triple {28783#(and (= main_i 136) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {28783#(and (= main_i 136) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:32,637 INFO L273 TraceCheckUtils]: 69: Hoare triple {28783#(and (= main_i 136) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {28790#(and (= 23 (select main_a (* 4 main_n))) (= main_i 140))} is VALID [2019-01-31 14:39:32,638 INFO L273 TraceCheckUtils]: 70: Hoare triple {28790#(and (= 23 (select main_a (* 4 main_n))) (= main_i 140))} assume i <= n * 4; {28790#(and (= 23 (select main_a (* 4 main_n))) (= main_i 140))} is VALID [2019-01-31 14:39:32,639 INFO L273 TraceCheckUtils]: 71: Hoare triple {28790#(and (= 23 (select main_a (* 4 main_n))) (= main_i 140))} assume a[i] != 23;i := i + 4; {28797#(and (= main_i 144) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:32,640 INFO L273 TraceCheckUtils]: 72: Hoare triple {28797#(and (= main_i 144) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {28797#(and (= main_i 144) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:32,640 INFO L273 TraceCheckUtils]: 73: Hoare triple {28797#(and (= main_i 144) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {28804#(and (= main_i 148) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:32,641 INFO L273 TraceCheckUtils]: 74: Hoare triple {28804#(and (= main_i 148) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {28804#(and (= main_i 148) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:32,642 INFO L273 TraceCheckUtils]: 75: Hoare triple {28804#(and (= main_i 148) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {28811#(and (= main_i 152) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:32,642 INFO L273 TraceCheckUtils]: 76: Hoare triple {28811#(and (= main_i 152) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {28811#(and (= main_i 152) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:32,643 INFO L273 TraceCheckUtils]: 77: Hoare triple {28811#(and (= main_i 152) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {28818#(and (= main_i 156) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:32,644 INFO L273 TraceCheckUtils]: 78: Hoare triple {28818#(and (= main_i 156) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {28818#(and (= main_i 156) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:32,644 INFO L273 TraceCheckUtils]: 79: Hoare triple {28818#(and (= main_i 156) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {28825#(and (= main_i 160) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:32,645 INFO L273 TraceCheckUtils]: 80: Hoare triple {28825#(and (= main_i 160) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {28825#(and (= main_i 160) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:32,646 INFO L273 TraceCheckUtils]: 81: Hoare triple {28825#(and (= main_i 160) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {28832#(and (= 23 (select main_a (* 4 main_n))) (= main_i 164))} is VALID [2019-01-31 14:39:32,646 INFO L273 TraceCheckUtils]: 82: Hoare triple {28832#(and (= 23 (select main_a (* 4 main_n))) (= main_i 164))} assume i <= n * 4; {28832#(and (= 23 (select main_a (* 4 main_n))) (= main_i 164))} is VALID [2019-01-31 14:39:32,647 INFO L273 TraceCheckUtils]: 83: Hoare triple {28832#(and (= 23 (select main_a (* 4 main_n))) (= main_i 164))} assume a[i] != 23;i := i + 4; {28839#(and (= main_i 168) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:32,648 INFO L273 TraceCheckUtils]: 84: Hoare triple {28839#(and (= main_i 168) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {28839#(and (= main_i 168) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:32,648 INFO L273 TraceCheckUtils]: 85: Hoare triple {28839#(and (= main_i 168) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {28846#(and (= main_i 172) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:32,649 INFO L273 TraceCheckUtils]: 86: Hoare triple {28846#(and (= main_i 172) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {28846#(and (= main_i 172) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:32,650 INFO L273 TraceCheckUtils]: 87: Hoare triple {28846#(and (= main_i 172) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {28853#(and (= main_i 176) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:32,650 INFO L273 TraceCheckUtils]: 88: Hoare triple {28853#(and (= main_i 176) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {28853#(and (= main_i 176) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:32,651 INFO L273 TraceCheckUtils]: 89: Hoare triple {28853#(and (= main_i 176) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {28860#(and (= main_i 180) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:32,652 INFO L273 TraceCheckUtils]: 90: Hoare triple {28860#(and (= main_i 180) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {28860#(and (= main_i 180) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:32,652 INFO L273 TraceCheckUtils]: 91: Hoare triple {28860#(and (= main_i 180) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {28867#(and (= main_i 184) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:32,653 INFO L273 TraceCheckUtils]: 92: Hoare triple {28867#(and (= main_i 184) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {28871#(and (= main_i 184) (<= main_i (* 4 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:32,654 INFO L273 TraceCheckUtils]: 93: Hoare triple {28871#(and (= main_i 184) (<= main_i (* 4 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {28544#(and (<= main_i 188) (< 46 main_n))} is VALID [2019-01-31 14:39:32,655 INFO L273 TraceCheckUtils]: 94: Hoare triple {28544#(and (<= main_i 188) (< 46 main_n))} assume !(i <= n * 4); {28495#false} is VALID [2019-01-31 14:39:32,676 INFO L134 CoverageAnalysis]: Checked inductivity of 2162 backedges. 0 proven. 2162 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-31 14:39:32,676 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2019-01-31 14:39:39,179 INFO L273 TraceCheckUtils]: 94: Hoare triple {28878#(<= main_i (* 4 main_n))} assume !(i <= n * 4); {28495#false} is VALID [2019-01-31 14:39:39,180 INFO L273 TraceCheckUtils]: 93: Hoare triple {28882#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} assume a[i] != 23;i := i + 4; {28878#(<= main_i (* 4 main_n))} is VALID [2019-01-31 14:39:39,181 INFO L273 TraceCheckUtils]: 92: Hoare triple {28886#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} assume i <= n * 4; {28882#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} is VALID [2019-01-31 14:39:39,182 INFO L273 TraceCheckUtils]: 91: Hoare triple {28890#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume a[i] != 23;i := i + 4; {28886#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} is VALID [2019-01-31 14:39:39,182 INFO L273 TraceCheckUtils]: 90: Hoare triple {28890#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume i <= n * 4; {28890#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2019-01-31 14:39:39,183 INFO L273 TraceCheckUtils]: 89: Hoare triple {28897#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume a[i] != 23;i := i + 4; {28890#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2019-01-31 14:39:39,184 INFO L273 TraceCheckUtils]: 88: Hoare triple {28897#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume i <= n * 4; {28897#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2019-01-31 14:39:39,185 INFO L273 TraceCheckUtils]: 87: Hoare triple {28904#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume a[i] != 23;i := i + 4; {28897#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2019-01-31 14:39:39,185 INFO L273 TraceCheckUtils]: 86: Hoare triple {28904#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume i <= n * 4; {28904#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2019-01-31 14:39:39,186 INFO L273 TraceCheckUtils]: 85: Hoare triple {28911#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume a[i] != 23;i := i + 4; {28904#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2019-01-31 14:39:39,187 INFO L273 TraceCheckUtils]: 84: Hoare triple {28911#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume i <= n * 4; {28911#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2019-01-31 14:39:39,188 INFO L273 TraceCheckUtils]: 83: Hoare triple {28918#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {28911#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2019-01-31 14:39:39,188 INFO L273 TraceCheckUtils]: 82: Hoare triple {28918#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume i <= n * 4; {28918#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2019-01-31 14:39:39,189 INFO L273 TraceCheckUtils]: 81: Hoare triple {28925#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume a[i] != 23;i := i + 4; {28918#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2019-01-31 14:39:39,190 INFO L273 TraceCheckUtils]: 80: Hoare triple {28925#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume i <= n * 4; {28925#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2019-01-31 14:39:39,191 INFO L273 TraceCheckUtils]: 79: Hoare triple {28932#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {28925#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2019-01-31 14:39:39,191 INFO L273 TraceCheckUtils]: 78: Hoare triple {28932#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume i <= n * 4; {28932#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2019-01-31 14:39:39,193 INFO L273 TraceCheckUtils]: 77: Hoare triple {28939#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {28932#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2019-01-31 14:39:39,193 INFO L273 TraceCheckUtils]: 76: Hoare triple {28939#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume i <= n * 4; {28939#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2019-01-31 14:39:39,194 INFO L273 TraceCheckUtils]: 75: Hoare triple {28946#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {28939#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2019-01-31 14:39:39,195 INFO L273 TraceCheckUtils]: 74: Hoare triple {28946#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume i <= n * 4; {28946#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2019-01-31 14:39:39,196 INFO L273 TraceCheckUtils]: 73: Hoare triple {28953#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} assume a[i] != 23;i := i + 4; {28946#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2019-01-31 14:39:39,196 INFO L273 TraceCheckUtils]: 72: Hoare triple {28953#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} assume i <= n * 4; {28953#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} is VALID [2019-01-31 14:39:39,197 INFO L273 TraceCheckUtils]: 71: Hoare triple {28960#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {28953#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} is VALID [2019-01-31 14:39:39,198 INFO L273 TraceCheckUtils]: 70: Hoare triple {28960#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} assume i <= n * 4; {28960#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} is VALID [2019-01-31 14:39:39,199 INFO L273 TraceCheckUtils]: 69: Hoare triple {28967#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {28960#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} is VALID [2019-01-31 14:39:39,199 INFO L273 TraceCheckUtils]: 68: Hoare triple {28967#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} assume i <= n * 4; {28967#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} is VALID [2019-01-31 14:39:39,200 INFO L273 TraceCheckUtils]: 67: Hoare triple {28974#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} assume a[i] != 23;i := i + 4; {28967#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} is VALID [2019-01-31 14:39:39,201 INFO L273 TraceCheckUtils]: 66: Hoare triple {28974#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} assume i <= n * 4; {28974#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} is VALID [2019-01-31 14:39:39,202 INFO L273 TraceCheckUtils]: 65: Hoare triple {28981#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {28974#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} is VALID [2019-01-31 14:39:39,202 INFO L273 TraceCheckUtils]: 64: Hoare triple {28981#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} assume i <= n * 4; {28981#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} is VALID [2019-01-31 14:39:39,203 INFO L273 TraceCheckUtils]: 63: Hoare triple {28988#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} assume a[i] != 23;i := i + 4; {28981#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} is VALID [2019-01-31 14:39:39,204 INFO L273 TraceCheckUtils]: 62: Hoare triple {28988#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} assume i <= n * 4; {28988#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} is VALID [2019-01-31 14:39:39,205 INFO L273 TraceCheckUtils]: 61: Hoare triple {28995#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} assume a[i] != 23;i := i + 4; {28988#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} is VALID [2019-01-31 14:39:39,206 INFO L273 TraceCheckUtils]: 60: Hoare triple {28995#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} assume i <= n * 4; {28995#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} is VALID [2019-01-31 14:39:39,207 INFO L273 TraceCheckUtils]: 59: Hoare triple {29002#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} assume a[i] != 23;i := i + 4; {28995#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} is VALID [2019-01-31 14:39:39,207 INFO L273 TraceCheckUtils]: 58: Hoare triple {29002#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} assume i <= n * 4; {29002#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} is VALID [2019-01-31 14:39:39,208 INFO L273 TraceCheckUtils]: 57: Hoare triple {29009#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} assume a[i] != 23;i := i + 4; {29002#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} is VALID [2019-01-31 14:39:39,209 INFO L273 TraceCheckUtils]: 56: Hoare triple {29009#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} assume i <= n * 4; {29009#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} is VALID [2019-01-31 14:39:39,210 INFO L273 TraceCheckUtils]: 55: Hoare triple {29016#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} assume a[i] != 23;i := i + 4; {29009#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} is VALID [2019-01-31 14:39:39,210 INFO L273 TraceCheckUtils]: 54: Hoare triple {29016#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} assume i <= n * 4; {29016#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} is VALID [2019-01-31 14:39:39,211 INFO L273 TraceCheckUtils]: 53: Hoare triple {29023#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} assume a[i] != 23;i := i + 4; {29016#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} is VALID [2019-01-31 14:39:39,212 INFO L273 TraceCheckUtils]: 52: Hoare triple {29023#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} assume i <= n * 4; {29023#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} is VALID [2019-01-31 14:39:39,213 INFO L273 TraceCheckUtils]: 51: Hoare triple {29030#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {29023#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} is VALID [2019-01-31 14:39:39,213 INFO L273 TraceCheckUtils]: 50: Hoare triple {29030#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} assume i <= n * 4; {29030#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} is VALID [2019-01-31 14:39:39,214 INFO L273 TraceCheckUtils]: 49: Hoare triple {29037#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {29030#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} is VALID [2019-01-31 14:39:39,215 INFO L273 TraceCheckUtils]: 48: Hoare triple {29037#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} assume i <= n * 4; {29037#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} is VALID [2019-01-31 14:39:39,216 INFO L273 TraceCheckUtils]: 47: Hoare triple {29044#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {29037#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} is VALID [2019-01-31 14:39:39,216 INFO L273 TraceCheckUtils]: 46: Hoare triple {29044#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} assume i <= n * 4; {29044#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} is VALID [2019-01-31 14:39:39,218 INFO L273 TraceCheckUtils]: 45: Hoare triple {29051#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} assume a[i] != 23;i := i + 4; {29044#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} is VALID [2019-01-31 14:39:39,218 INFO L273 TraceCheckUtils]: 44: Hoare triple {29051#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} assume i <= n * 4; {29051#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} is VALID [2019-01-31 14:39:39,219 INFO L273 TraceCheckUtils]: 43: Hoare triple {29058#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {29051#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} is VALID [2019-01-31 14:39:39,220 INFO L273 TraceCheckUtils]: 42: Hoare triple {29058#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} assume i <= n * 4; {29058#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} is VALID [2019-01-31 14:39:39,221 INFO L273 TraceCheckUtils]: 41: Hoare triple {29065#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} assume a[i] != 23;i := i + 4; {29058#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} is VALID [2019-01-31 14:39:39,221 INFO L273 TraceCheckUtils]: 40: Hoare triple {29065#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} assume i <= n * 4; {29065#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} is VALID [2019-01-31 14:39:39,222 INFO L273 TraceCheckUtils]: 39: Hoare triple {29072#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} assume a[i] != 23;i := i + 4; {29065#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} is VALID [2019-01-31 14:39:39,223 INFO L273 TraceCheckUtils]: 38: Hoare triple {29072#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} assume i <= n * 4; {29072#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} is VALID [2019-01-31 14:39:39,224 INFO L273 TraceCheckUtils]: 37: Hoare triple {29079#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} assume a[i] != 23;i := i + 4; {29072#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} is VALID [2019-01-31 14:39:39,224 INFO L273 TraceCheckUtils]: 36: Hoare triple {29079#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} assume i <= n * 4; {29079#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} is VALID [2019-01-31 14:39:39,225 INFO L273 TraceCheckUtils]: 35: Hoare triple {29086#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {29079#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} is VALID [2019-01-31 14:39:39,226 INFO L273 TraceCheckUtils]: 34: Hoare triple {29086#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} assume i <= n * 4; {29086#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} is VALID [2019-01-31 14:39:39,227 INFO L273 TraceCheckUtils]: 33: Hoare triple {29093#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {29086#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} is VALID [2019-01-31 14:39:39,227 INFO L273 TraceCheckUtils]: 32: Hoare triple {29093#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} assume i <= n * 4; {29093#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} is VALID [2019-01-31 14:39:39,229 INFO L273 TraceCheckUtils]: 31: Hoare triple {29100#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} assume a[i] != 23;i := i + 4; {29093#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} is VALID [2019-01-31 14:39:39,229 INFO L273 TraceCheckUtils]: 30: Hoare triple {29100#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} assume i <= n * 4; {29100#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} is VALID [2019-01-31 14:39:39,230 INFO L273 TraceCheckUtils]: 29: Hoare triple {29107#(or (< (* 4 main_n) (+ main_i 128)) (= (select main_a (+ main_i 128)) 23) (< (+ main_i 131) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {29100#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} is VALID [2019-01-31 14:39:39,231 INFO L273 TraceCheckUtils]: 28: Hoare triple {29107#(or (< (* 4 main_n) (+ main_i 128)) (= (select main_a (+ main_i 128)) 23) (< (+ main_i 131) (* 4 main_n)))} assume i <= n * 4; {29107#(or (< (* 4 main_n) (+ main_i 128)) (= (select main_a (+ main_i 128)) 23) (< (+ main_i 131) (* 4 main_n)))} is VALID [2019-01-31 14:39:39,232 INFO L273 TraceCheckUtils]: 27: Hoare triple {29114#(or (< (* 4 main_n) (+ main_i 132)) (< (+ main_i 135) (* 4 main_n)) (= (select main_a (+ main_i 132)) 23))} assume a[i] != 23;i := i + 4; {29107#(or (< (* 4 main_n) (+ main_i 128)) (= (select main_a (+ main_i 128)) 23) (< (+ main_i 131) (* 4 main_n)))} is VALID [2019-01-31 14:39:39,232 INFO L273 TraceCheckUtils]: 26: Hoare triple {29114#(or (< (* 4 main_n) (+ main_i 132)) (< (+ main_i 135) (* 4 main_n)) (= (select main_a (+ main_i 132)) 23))} assume i <= n * 4; {29114#(or (< (* 4 main_n) (+ main_i 132)) (< (+ main_i 135) (* 4 main_n)) (= (select main_a (+ main_i 132)) 23))} is VALID [2019-01-31 14:39:39,233 INFO L273 TraceCheckUtils]: 25: Hoare triple {29121#(or (< (+ main_i 139) (* 4 main_n)) (= (select main_a (+ main_i 136)) 23) (< (* 4 main_n) (+ main_i 136)))} assume a[i] != 23;i := i + 4; {29114#(or (< (* 4 main_n) (+ main_i 132)) (< (+ main_i 135) (* 4 main_n)) (= (select main_a (+ main_i 132)) 23))} is VALID [2019-01-31 14:39:39,234 INFO L273 TraceCheckUtils]: 24: Hoare triple {29121#(or (< (+ main_i 139) (* 4 main_n)) (= (select main_a (+ main_i 136)) 23) (< (* 4 main_n) (+ main_i 136)))} assume i <= n * 4; {29121#(or (< (+ main_i 139) (* 4 main_n)) (= (select main_a (+ main_i 136)) 23) (< (* 4 main_n) (+ main_i 136)))} is VALID [2019-01-31 14:39:39,235 INFO L273 TraceCheckUtils]: 23: Hoare triple {29128#(or (< (* 4 main_n) (+ main_i 140)) (< (+ main_i 143) (* 4 main_n)) (= (select main_a (+ main_i 140)) 23))} assume a[i] != 23;i := i + 4; {29121#(or (< (+ main_i 139) (* 4 main_n)) (= (select main_a (+ main_i 136)) 23) (< (* 4 main_n) (+ main_i 136)))} is VALID [2019-01-31 14:39:39,235 INFO L273 TraceCheckUtils]: 22: Hoare triple {29128#(or (< (* 4 main_n) (+ main_i 140)) (< (+ main_i 143) (* 4 main_n)) (= (select main_a (+ main_i 140)) 23))} assume i <= n * 4; {29128#(or (< (* 4 main_n) (+ main_i 140)) (< (+ main_i 143) (* 4 main_n)) (= (select main_a (+ main_i 140)) 23))} is VALID [2019-01-31 14:39:39,236 INFO L273 TraceCheckUtils]: 21: Hoare triple {29135#(or (= (select main_a (+ main_i 144)) 23) (< (+ main_i 147) (* 4 main_n)) (< (* 4 main_n) (+ main_i 144)))} assume a[i] != 23;i := i + 4; {29128#(or (< (* 4 main_n) (+ main_i 140)) (< (+ main_i 143) (* 4 main_n)) (= (select main_a (+ main_i 140)) 23))} is VALID [2019-01-31 14:39:39,237 INFO L273 TraceCheckUtils]: 20: Hoare triple {29135#(or (= (select main_a (+ main_i 144)) 23) (< (+ main_i 147) (* 4 main_n)) (< (* 4 main_n) (+ main_i 144)))} assume i <= n * 4; {29135#(or (= (select main_a (+ main_i 144)) 23) (< (+ main_i 147) (* 4 main_n)) (< (* 4 main_n) (+ main_i 144)))} is VALID [2019-01-31 14:39:39,238 INFO L273 TraceCheckUtils]: 19: Hoare triple {29142#(or (< (+ main_i 151) (* 4 main_n)) (< (* 4 main_n) (+ main_i 148)) (= (select main_a (+ main_i 148)) 23))} assume a[i] != 23;i := i + 4; {29135#(or (= (select main_a (+ main_i 144)) 23) (< (+ main_i 147) (* 4 main_n)) (< (* 4 main_n) (+ main_i 144)))} is VALID [2019-01-31 14:39:39,238 INFO L273 TraceCheckUtils]: 18: Hoare triple {29142#(or (< (+ main_i 151) (* 4 main_n)) (< (* 4 main_n) (+ main_i 148)) (= (select main_a (+ main_i 148)) 23))} assume i <= n * 4; {29142#(or (< (+ main_i 151) (* 4 main_n)) (< (* 4 main_n) (+ main_i 148)) (= (select main_a (+ main_i 148)) 23))} is VALID [2019-01-31 14:39:39,240 INFO L273 TraceCheckUtils]: 17: Hoare triple {29149#(or (= 23 (select main_a (+ main_i 152))) (< (+ main_i 155) (* 4 main_n)) (< (* 4 main_n) (+ main_i 152)))} assume a[i] != 23;i := i + 4; {29142#(or (< (+ main_i 151) (* 4 main_n)) (< (* 4 main_n) (+ main_i 148)) (= (select main_a (+ main_i 148)) 23))} is VALID [2019-01-31 14:39:39,240 INFO L273 TraceCheckUtils]: 16: Hoare triple {29149#(or (= 23 (select main_a (+ main_i 152))) (< (+ main_i 155) (* 4 main_n)) (< (* 4 main_n) (+ main_i 152)))} assume i <= n * 4; {29149#(or (= 23 (select main_a (+ main_i 152))) (< (+ main_i 155) (* 4 main_n)) (< (* 4 main_n) (+ main_i 152)))} is VALID [2019-01-31 14:39:39,241 INFO L273 TraceCheckUtils]: 15: Hoare triple {29156#(or (< (+ main_i 159) (* 4 main_n)) (= (select main_a (+ main_i 156)) 23) (< (* 4 main_n) (+ main_i 156)))} assume a[i] != 23;i := i + 4; {29149#(or (= 23 (select main_a (+ main_i 152))) (< (+ main_i 155) (* 4 main_n)) (< (* 4 main_n) (+ main_i 152)))} is VALID [2019-01-31 14:39:39,242 INFO L273 TraceCheckUtils]: 14: Hoare triple {29156#(or (< (+ main_i 159) (* 4 main_n)) (= (select main_a (+ main_i 156)) 23) (< (* 4 main_n) (+ main_i 156)))} assume i <= n * 4; {29156#(or (< (+ main_i 159) (* 4 main_n)) (= (select main_a (+ main_i 156)) 23) (< (* 4 main_n) (+ main_i 156)))} is VALID [2019-01-31 14:39:39,243 INFO L273 TraceCheckUtils]: 13: Hoare triple {29163#(or (< (+ main_i 163) (* 4 main_n)) (= (select main_a (+ main_i 160)) 23) (< (* 4 main_n) (+ main_i 160)))} assume a[i] != 23;i := i + 4; {29156#(or (< (+ main_i 159) (* 4 main_n)) (= (select main_a (+ main_i 156)) 23) (< (* 4 main_n) (+ main_i 156)))} is VALID [2019-01-31 14:39:39,243 INFO L273 TraceCheckUtils]: 12: Hoare triple {29163#(or (< (+ main_i 163) (* 4 main_n)) (= (select main_a (+ main_i 160)) 23) (< (* 4 main_n) (+ main_i 160)))} assume i <= n * 4; {29163#(or (< (+ main_i 163) (* 4 main_n)) (= (select main_a (+ main_i 160)) 23) (< (* 4 main_n) (+ main_i 160)))} is VALID [2019-01-31 14:39:39,244 INFO L273 TraceCheckUtils]: 11: Hoare triple {29170#(or (< (* 4 main_n) (+ main_i 164)) (< (+ main_i 167) (* 4 main_n)) (= (select main_a (+ main_i 164)) 23))} assume a[i] != 23;i := i + 4; {29163#(or (< (+ main_i 163) (* 4 main_n)) (= (select main_a (+ main_i 160)) 23) (< (* 4 main_n) (+ main_i 160)))} is VALID [2019-01-31 14:39:39,245 INFO L273 TraceCheckUtils]: 10: Hoare triple {29170#(or (< (* 4 main_n) (+ main_i 164)) (< (+ main_i 167) (* 4 main_n)) (= (select main_a (+ main_i 164)) 23))} assume i <= n * 4; {29170#(or (< (* 4 main_n) (+ main_i 164)) (< (+ main_i 167) (* 4 main_n)) (= (select main_a (+ main_i 164)) 23))} is VALID [2019-01-31 14:39:39,246 INFO L273 TraceCheckUtils]: 9: Hoare triple {29177#(or (= (select main_a (+ main_i 168)) 23) (< (* 4 main_n) (+ main_i 168)) (< (+ main_i 171) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {29170#(or (< (* 4 main_n) (+ main_i 164)) (< (+ main_i 167) (* 4 main_n)) (= (select main_a (+ main_i 164)) 23))} is VALID [2019-01-31 14:39:39,246 INFO L273 TraceCheckUtils]: 8: Hoare triple {29177#(or (= (select main_a (+ main_i 168)) 23) (< (* 4 main_n) (+ main_i 168)) (< (+ main_i 171) (* 4 main_n)))} assume i <= n * 4; {29177#(or (= (select main_a (+ main_i 168)) 23) (< (* 4 main_n) (+ main_i 168)) (< (+ main_i 171) (* 4 main_n)))} is VALID [2019-01-31 14:39:39,247 INFO L273 TraceCheckUtils]: 7: Hoare triple {29184#(or (< (* 4 main_n) (+ main_i 172)) (= (select main_a (+ main_i 172)) 23) (< (+ main_i 175) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {29177#(or (= (select main_a (+ main_i 168)) 23) (< (* 4 main_n) (+ main_i 168)) (< (+ main_i 171) (* 4 main_n)))} is VALID [2019-01-31 14:39:39,248 INFO L273 TraceCheckUtils]: 6: Hoare triple {29184#(or (< (* 4 main_n) (+ main_i 172)) (= (select main_a (+ main_i 172)) 23) (< (+ main_i 175) (* 4 main_n)))} assume i <= n * 4; {29184#(or (< (* 4 main_n) (+ main_i 172)) (= (select main_a (+ main_i 172)) 23) (< (+ main_i 175) (* 4 main_n)))} is VALID [2019-01-31 14:39:39,249 INFO L273 TraceCheckUtils]: 5: Hoare triple {29191#(or (= (select main_a (+ main_i 176)) 23) (< (+ main_i 179) (* 4 main_n)) (< (* 4 main_n) (+ main_i 176)))} assume a[i] != 23;i := i + 4; {29184#(or (< (* 4 main_n) (+ main_i 172)) (= (select main_a (+ main_i 172)) 23) (< (+ main_i 175) (* 4 main_n)))} is VALID [2019-01-31 14:39:39,249 INFO L273 TraceCheckUtils]: 4: Hoare triple {29191#(or (= (select main_a (+ main_i 176)) 23) (< (+ main_i 179) (* 4 main_n)) (< (* 4 main_n) (+ main_i 176)))} assume i <= n * 4; {29191#(or (= (select main_a (+ main_i 176)) 23) (< (+ main_i 179) (* 4 main_n)) (< (* 4 main_n) (+ main_i 176)))} is VALID [2019-01-31 14:39:39,250 INFO L273 TraceCheckUtils]: 3: Hoare triple {29198#(or (< (+ main_i 183) (* 4 main_n)) (= (select main_a (+ main_i 180)) 23) (< (* 4 main_n) (+ main_i 180)))} assume a[i] != 23;i := i + 4; {29191#(or (= (select main_a (+ main_i 176)) 23) (< (+ main_i 179) (* 4 main_n)) (< (* 4 main_n) (+ main_i 176)))} is VALID [2019-01-31 14:39:39,251 INFO L273 TraceCheckUtils]: 2: Hoare triple {29198#(or (< (+ main_i 183) (* 4 main_n)) (= (select main_a (+ main_i 180)) 23) (< (* 4 main_n) (+ main_i 180)))} assume i <= n * 4; {29198#(or (< (+ main_i 183) (* 4 main_n)) (= (select main_a (+ main_i 180)) 23) (< (* 4 main_n) (+ main_i 180)))} is VALID [2019-01-31 14:39:39,252 INFO L273 TraceCheckUtils]: 1: Hoare triple {29205#(or (= (select main_a (+ main_i 184)) 23) (< (+ main_i 187) (* 4 main_n)) (< (* 4 main_n) (+ main_i 184)))} assume a[i] != 23;i := i + 4; {29198#(or (< (+ main_i 183) (* 4 main_n)) (= (select main_a (+ main_i 180)) 23) (< (* 4 main_n) (+ main_i 180)))} is VALID [2019-01-31 14:39:39,253 INFO L273 TraceCheckUtils]: 0: Hoare triple {28494#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {29205#(or (= (select main_a (+ main_i 184)) 23) (< (+ main_i 187) (* 4 main_n)) (< (* 4 main_n) (+ main_i 184)))} is VALID [2019-01-31 14:39:39,287 INFO L134 CoverageAnalysis]: Checked inductivity of 2162 backedges. 0 proven. 2162 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-31 14:39:39,306 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-01-31 14:39:39,306 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [49, 49, 49] total 146 [2019-01-31 14:39:39,306 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-01-31 14:39:39,306 INFO L78 Accepts]: Start accepts. Automaton has 99 states. Word has length 95 [2019-01-31 14:39:39,307 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-01-31 14:39:39,307 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 99 states. [2019-01-31 14:39:39,528 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 189 edges. 189 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-01-31 14:39:39,528 INFO L459 AbstractCegarLoop]: Interpolant automaton has 99 states [2019-01-31 14:39:39,529 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 99 interpolants. [2019-01-31 14:39:39,529 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2654, Invalid=19102, Unknown=0, NotChecked=0, Total=21756 [2019-01-31 14:39:39,530 INFO L87 Difference]: Start difference. First operand 96 states and 96 transitions. Second operand 99 states. [2019-01-31 14:39:52,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 14:39:52,800 INFO L93 Difference]: Finished difference Result 100 states and 100 transitions. [2019-01-31 14:39:52,800 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2019-01-31 14:39:52,800 INFO L78 Accepts]: Start accepts. Automaton has 99 states. Word has length 95 [2019-01-31 14:39:52,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-31 14:39:52,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 99 states. [2019-01-31 14:39:52,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 100 transitions. [2019-01-31 14:39:52,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 99 states. [2019-01-31 14:39:52,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 100 transitions. [2019-01-31 14:39:52,803 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 51 states and 100 transitions. [2019-01-31 14:39:52,910 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 100 edges. 100 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-01-31 14:39:52,912 INFO L225 Difference]: With dead ends: 100 [2019-01-31 14:39:52,912 INFO L226 Difference]: Without dead ends: 99 [2019-01-31 14:39:52,913 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 237 GetRequests, 90 SyntacticMatches, 1 SemanticMatches, 146 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4896 ImplicationChecksByTransitivity, 12.2s TimeCoverageRelationStatistics Valid=2654, Invalid=19102, Unknown=0, NotChecked=0, Total=21756 [2019-01-31 14:39:52,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2019-01-31 14:39:53,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 98. [2019-01-31 14:39:53,000 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-01-31 14:39:53,000 INFO L82 GeneralOperation]: Start isEquivalent. First operand 99 states. Second operand 98 states. [2019-01-31 14:39:53,000 INFO L74 IsIncluded]: Start isIncluded. First operand 99 states. Second operand 98 states. [2019-01-31 14:39:53,000 INFO L87 Difference]: Start difference. First operand 99 states. Second operand 98 states. [2019-01-31 14:39:53,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 14:39:53,002 INFO L93 Difference]: Finished difference Result 99 states and 99 transitions. [2019-01-31 14:39:53,002 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 99 transitions. [2019-01-31 14:39:53,002 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-31 14:39:53,002 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-01-31 14:39:53,002 INFO L74 IsIncluded]: Start isIncluded. First operand 98 states. Second operand 99 states. [2019-01-31 14:39:53,003 INFO L87 Difference]: Start difference. First operand 98 states. Second operand 99 states. [2019-01-31 14:39:53,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 14:39:53,003 INFO L93 Difference]: Finished difference Result 99 states and 99 transitions. [2019-01-31 14:39:53,004 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 99 transitions. [2019-01-31 14:39:53,004 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-31 14:39:53,004 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-01-31 14:39:53,004 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-01-31 14:39:53,004 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-01-31 14:39:53,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 98 states. [2019-01-31 14:39:53,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 98 transitions. [2019-01-31 14:39:53,005 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 98 transitions. Word has length 95 [2019-01-31 14:39:53,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-31 14:39:53,005 INFO L480 AbstractCegarLoop]: Abstraction has 98 states and 98 transitions. [2019-01-31 14:39:53,005 INFO L481 AbstractCegarLoop]: Interpolant automaton has 99 states. [2019-01-31 14:39:53,005 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 98 transitions. [2019-01-31 14:39:53,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2019-01-31 14:39:53,006 INFO L394 BasicCegarLoop]: Found error trace [2019-01-31 14:39:53,006 INFO L402 BasicCegarLoop]: trace histogram [48, 47, 1, 1] [2019-01-31 14:39:53,006 INFO L423 AbstractCegarLoop]: === Iteration 48 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-01-31 14:39:53,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-31 14:39:53,006 INFO L82 PathProgramCache]: Analyzing trace with hash 2107994238, now seen corresponding path program 47 times [2019-01-31 14:39:53,006 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-01-31 14:39:53,007 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-31 14:39:53,007 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-31 14:39:53,007 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-31 14:39:53,007 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-01-31 14:39:53,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-31 14:39:55,919 INFO L273 TraceCheckUtils]: 0: Hoare triple {29701#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {29703#(and (or (<= main_i 0) (<= main_n 47)) (= 23 (select main_a (* 4 main_n))) (or (<= 0 main_i) (< 47 main_n)))} is VALID [2019-01-31 14:39:55,921 INFO L273 TraceCheckUtils]: 1: Hoare triple {29703#(and (or (<= main_i 0) (<= main_n 47)) (= 23 (select main_a (* 4 main_n))) (or (<= 0 main_i) (< 47 main_n)))} assume a[i] != 23;i := i + 4; {29704#(and (or (<= main_i 4) (<= main_n 47)) (= 23 (select main_a (* 4 main_n))) (or (< 47 main_n) (<= 4 main_i)))} is VALID [2019-01-31 14:39:55,921 INFO L273 TraceCheckUtils]: 2: Hoare triple {29704#(and (or (<= main_i 4) (<= main_n 47)) (= 23 (select main_a (* 4 main_n))) (or (< 47 main_n) (<= 4 main_i)))} assume i <= n * 4; {29704#(and (or (<= main_i 4) (<= main_n 47)) (= 23 (select main_a (* 4 main_n))) (or (< 47 main_n) (<= 4 main_i)))} is VALID [2019-01-31 14:39:55,922 INFO L273 TraceCheckUtils]: 3: Hoare triple {29704#(and (or (<= main_i 4) (<= main_n 47)) (= 23 (select main_a (* 4 main_n))) (or (< 47 main_n) (<= 4 main_i)))} assume a[i] != 23;i := i + 4; {29705#(and (or (< 47 main_n) (<= 8 main_i)) (or (<= main_i 8) (<= main_n 47)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:55,923 INFO L273 TraceCheckUtils]: 4: Hoare triple {29705#(and (or (< 47 main_n) (<= 8 main_i)) (or (<= main_i 8) (<= main_n 47)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {29705#(and (or (< 47 main_n) (<= 8 main_i)) (or (<= main_i 8) (<= main_n 47)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:55,924 INFO L273 TraceCheckUtils]: 5: Hoare triple {29705#(and (or (< 47 main_n) (<= 8 main_i)) (or (<= main_i 8) (<= main_n 47)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {29706#(and (or (<= main_n 47) (<= main_i 12)) (or (< 47 main_n) (<= 12 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:55,925 INFO L273 TraceCheckUtils]: 6: Hoare triple {29706#(and (or (<= main_n 47) (<= main_i 12)) (or (< 47 main_n) (<= 12 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {29706#(and (or (<= main_n 47) (<= main_i 12)) (or (< 47 main_n) (<= 12 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:55,926 INFO L273 TraceCheckUtils]: 7: Hoare triple {29706#(and (or (<= main_n 47) (<= main_i 12)) (or (< 47 main_n) (<= 12 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {29707#(and (or (<= main_i 16) (<= main_n 47)) (or (< 47 main_n) (<= 16 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:55,927 INFO L273 TraceCheckUtils]: 8: Hoare triple {29707#(and (or (<= main_i 16) (<= main_n 47)) (or (< 47 main_n) (<= 16 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {29707#(and (or (<= main_i 16) (<= main_n 47)) (or (< 47 main_n) (<= 16 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:55,928 INFO L273 TraceCheckUtils]: 9: Hoare triple {29707#(and (or (<= main_i 16) (<= main_n 47)) (or (< 47 main_n) (<= 16 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {29708#(and (or (<= main_i 20) (<= main_n 47)) (= 23 (select main_a (* 4 main_n))) (or (< 47 main_n) (<= 20 main_i)))} is VALID [2019-01-31 14:39:55,928 INFO L273 TraceCheckUtils]: 10: Hoare triple {29708#(and (or (<= main_i 20) (<= main_n 47)) (= 23 (select main_a (* 4 main_n))) (or (< 47 main_n) (<= 20 main_i)))} assume i <= n * 4; {29708#(and (or (<= main_i 20) (<= main_n 47)) (= 23 (select main_a (* 4 main_n))) (or (< 47 main_n) (<= 20 main_i)))} is VALID [2019-01-31 14:39:55,929 INFO L273 TraceCheckUtils]: 11: Hoare triple {29708#(and (or (<= main_i 20) (<= main_n 47)) (= 23 (select main_a (* 4 main_n))) (or (< 47 main_n) (<= 20 main_i)))} assume a[i] != 23;i := i + 4; {29709#(and (or (<= main_i 24) (<= main_n 47)) (or (< 47 main_n) (<= 24 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:55,930 INFO L273 TraceCheckUtils]: 12: Hoare triple {29709#(and (or (<= main_i 24) (<= main_n 47)) (or (< 47 main_n) (<= 24 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {29709#(and (or (<= main_i 24) (<= main_n 47)) (or (< 47 main_n) (<= 24 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:55,931 INFO L273 TraceCheckUtils]: 13: Hoare triple {29709#(and (or (<= main_i 24) (<= main_n 47)) (or (< 47 main_n) (<= 24 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {29710#(and (or (<= main_n 47) (<= main_i 28)) (or (<= 28 main_i) (< 47 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:55,932 INFO L273 TraceCheckUtils]: 14: Hoare triple {29710#(and (or (<= main_n 47) (<= main_i 28)) (or (<= 28 main_i) (< 47 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {29710#(and (or (<= main_n 47) (<= main_i 28)) (or (<= 28 main_i) (< 47 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:55,933 INFO L273 TraceCheckUtils]: 15: Hoare triple {29710#(and (or (<= main_n 47) (<= main_i 28)) (or (<= 28 main_i) (< 47 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {29711#(and (or (<= 32 main_i) (< 47 main_n)) (or (<= main_i 32) (<= main_n 47)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:55,934 INFO L273 TraceCheckUtils]: 16: Hoare triple {29711#(and (or (<= 32 main_i) (< 47 main_n)) (or (<= main_i 32) (<= main_n 47)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {29711#(and (or (<= 32 main_i) (< 47 main_n)) (or (<= main_i 32) (<= main_n 47)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:55,935 INFO L273 TraceCheckUtils]: 17: Hoare triple {29711#(and (or (<= 32 main_i) (< 47 main_n)) (or (<= main_i 32) (<= main_n 47)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {29712#(and (or (<= main_i 36) (<= main_n 47)) (or (< 47 main_n) (<= 36 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:55,936 INFO L273 TraceCheckUtils]: 18: Hoare triple {29712#(and (or (<= main_i 36) (<= main_n 47)) (or (< 47 main_n) (<= 36 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {29712#(and (or (<= main_i 36) (<= main_n 47)) (or (< 47 main_n) (<= 36 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:55,937 INFO L273 TraceCheckUtils]: 19: Hoare triple {29712#(and (or (<= main_i 36) (<= main_n 47)) (or (< 47 main_n) (<= 36 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {29713#(and (or (<= 40 main_i) (< 47 main_n)) (or (<= main_i 40) (<= main_n 47)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:55,937 INFO L273 TraceCheckUtils]: 20: Hoare triple {29713#(and (or (<= 40 main_i) (< 47 main_n)) (or (<= main_i 40) (<= main_n 47)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {29713#(and (or (<= 40 main_i) (< 47 main_n)) (or (<= main_i 40) (<= main_n 47)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:55,938 INFO L273 TraceCheckUtils]: 21: Hoare triple {29713#(and (or (<= 40 main_i) (< 47 main_n)) (or (<= main_i 40) (<= main_n 47)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {29714#(and (or (<= main_n 47) (<= main_i 44)) (= 23 (select main_a (* 4 main_n))) (or (<= 44 main_i) (< 47 main_n)))} is VALID [2019-01-31 14:39:55,939 INFO L273 TraceCheckUtils]: 22: Hoare triple {29714#(and (or (<= main_n 47) (<= main_i 44)) (= 23 (select main_a (* 4 main_n))) (or (<= 44 main_i) (< 47 main_n)))} assume i <= n * 4; {29714#(and (or (<= main_n 47) (<= main_i 44)) (= 23 (select main_a (* 4 main_n))) (or (<= 44 main_i) (< 47 main_n)))} is VALID [2019-01-31 14:39:55,940 INFO L273 TraceCheckUtils]: 23: Hoare triple {29714#(and (or (<= main_n 47) (<= main_i 44)) (= 23 (select main_a (* 4 main_n))) (or (<= 44 main_i) (< 47 main_n)))} assume a[i] != 23;i := i + 4; {29715#(and (or (<= main_i 48) (<= main_n 47)) (= 23 (select main_a (* 4 main_n))) (or (<= 48 main_i) (< 47 main_n)))} is VALID [2019-01-31 14:39:55,941 INFO L273 TraceCheckUtils]: 24: Hoare triple {29715#(and (or (<= main_i 48) (<= main_n 47)) (= 23 (select main_a (* 4 main_n))) (or (<= 48 main_i) (< 47 main_n)))} assume i <= n * 4; {29715#(and (or (<= main_i 48) (<= main_n 47)) (= 23 (select main_a (* 4 main_n))) (or (<= 48 main_i) (< 47 main_n)))} is VALID [2019-01-31 14:39:55,942 INFO L273 TraceCheckUtils]: 25: Hoare triple {29715#(and (or (<= main_i 48) (<= main_n 47)) (= 23 (select main_a (* 4 main_n))) (or (<= 48 main_i) (< 47 main_n)))} assume a[i] != 23;i := i + 4; {29716#(and (or (< 47 main_n) (<= 52 main_i)) (or (<= main_i 52) (<= main_n 47)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:55,943 INFO L273 TraceCheckUtils]: 26: Hoare triple {29716#(and (or (< 47 main_n) (<= 52 main_i)) (or (<= main_i 52) (<= main_n 47)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {29716#(and (or (< 47 main_n) (<= 52 main_i)) (or (<= main_i 52) (<= main_n 47)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:55,944 INFO L273 TraceCheckUtils]: 27: Hoare triple {29716#(and (or (< 47 main_n) (<= 52 main_i)) (or (<= main_i 52) (<= main_n 47)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {29717#(and (or (<= main_i 56) (<= main_n 47)) (or (< 47 main_n) (<= 56 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:55,945 INFO L273 TraceCheckUtils]: 28: Hoare triple {29717#(and (or (<= main_i 56) (<= main_n 47)) (or (< 47 main_n) (<= 56 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {29717#(and (or (<= main_i 56) (<= main_n 47)) (or (< 47 main_n) (<= 56 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:55,946 INFO L273 TraceCheckUtils]: 29: Hoare triple {29717#(and (or (<= main_i 56) (<= main_n 47)) (or (< 47 main_n) (<= 56 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {29718#(and (or (< 47 main_n) (<= 60 main_i)) (or (<= main_i 60) (<= main_n 47)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:55,946 INFO L273 TraceCheckUtils]: 30: Hoare triple {29718#(and (or (< 47 main_n) (<= 60 main_i)) (or (<= main_i 60) (<= main_n 47)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {29718#(and (or (< 47 main_n) (<= 60 main_i)) (or (<= main_i 60) (<= main_n 47)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:55,947 INFO L273 TraceCheckUtils]: 31: Hoare triple {29718#(and (or (< 47 main_n) (<= 60 main_i)) (or (<= main_i 60) (<= main_n 47)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {29719#(and (or (<= 64 main_i) (< 47 main_n)) (or (<= main_i 64) (<= main_n 47)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:55,948 INFO L273 TraceCheckUtils]: 32: Hoare triple {29719#(and (or (<= 64 main_i) (< 47 main_n)) (or (<= main_i 64) (<= main_n 47)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {29719#(and (or (<= 64 main_i) (< 47 main_n)) (or (<= main_i 64) (<= main_n 47)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:55,949 INFO L273 TraceCheckUtils]: 33: Hoare triple {29719#(and (or (<= 64 main_i) (< 47 main_n)) (or (<= main_i 64) (<= main_n 47)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {29720#(and (or (< 47 main_n) (<= 68 main_i)) (or (<= main_n 47) (<= main_i 68)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:55,950 INFO L273 TraceCheckUtils]: 34: Hoare triple {29720#(and (or (< 47 main_n) (<= 68 main_i)) (or (<= main_n 47) (<= main_i 68)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {29720#(and (or (< 47 main_n) (<= 68 main_i)) (or (<= main_n 47) (<= main_i 68)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:55,951 INFO L273 TraceCheckUtils]: 35: Hoare triple {29720#(and (or (< 47 main_n) (<= 68 main_i)) (or (<= main_n 47) (<= main_i 68)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {29721#(and (or (<= 72 main_i) (< 47 main_n)) (or (<= main_i 72) (<= main_n 47)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:55,952 INFO L273 TraceCheckUtils]: 36: Hoare triple {29721#(and (or (<= 72 main_i) (< 47 main_n)) (or (<= main_i 72) (<= main_n 47)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {29721#(and (or (<= 72 main_i) (< 47 main_n)) (or (<= main_i 72) (<= main_n 47)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:55,953 INFO L273 TraceCheckUtils]: 37: Hoare triple {29721#(and (or (<= 72 main_i) (< 47 main_n)) (or (<= main_i 72) (<= main_n 47)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {29722#(and (or (<= main_i 76) (<= main_n 47)) (or (<= 76 main_i) (< 47 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:55,953 INFO L273 TraceCheckUtils]: 38: Hoare triple {29722#(and (or (<= main_i 76) (<= main_n 47)) (or (<= 76 main_i) (< 47 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {29722#(and (or (<= main_i 76) (<= main_n 47)) (or (<= 76 main_i) (< 47 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:55,954 INFO L273 TraceCheckUtils]: 39: Hoare triple {29722#(and (or (<= main_i 76) (<= main_n 47)) (or (<= 76 main_i) (< 47 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {29723#(and (or (< 47 main_n) (<= 80 main_i)) (or (<= main_n 47) (<= main_i 80)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:55,955 INFO L273 TraceCheckUtils]: 40: Hoare triple {29723#(and (or (< 47 main_n) (<= 80 main_i)) (or (<= main_n 47) (<= main_i 80)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {29723#(and (or (< 47 main_n) (<= 80 main_i)) (or (<= main_n 47) (<= main_i 80)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:55,956 INFO L273 TraceCheckUtils]: 41: Hoare triple {29723#(and (or (< 47 main_n) (<= 80 main_i)) (or (<= main_n 47) (<= main_i 80)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {29724#(and (or (< 47 main_n) (<= 84 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 84) (<= main_n 47)))} is VALID [2019-01-31 14:39:55,957 INFO L273 TraceCheckUtils]: 42: Hoare triple {29724#(and (or (< 47 main_n) (<= 84 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 84) (<= main_n 47)))} assume i <= n * 4; {29724#(and (or (< 47 main_n) (<= 84 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 84) (<= main_n 47)))} is VALID [2019-01-31 14:39:55,958 INFO L273 TraceCheckUtils]: 43: Hoare triple {29724#(and (or (< 47 main_n) (<= 84 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 84) (<= main_n 47)))} assume a[i] != 23;i := i + 4; {29725#(and (or (<= main_i 88) (<= main_n 47)) (or (< 47 main_n) (<= 88 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:55,959 INFO L273 TraceCheckUtils]: 44: Hoare triple {29725#(and (or (<= main_i 88) (<= main_n 47)) (or (< 47 main_n) (<= 88 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {29725#(and (or (<= main_i 88) (<= main_n 47)) (or (< 47 main_n) (<= 88 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:55,960 INFO L273 TraceCheckUtils]: 45: Hoare triple {29725#(and (or (<= main_i 88) (<= main_n 47)) (or (< 47 main_n) (<= 88 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {29726#(and (or (<= main_i 92) (<= main_n 47)) (or (< 47 main_n) (<= 92 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:55,961 INFO L273 TraceCheckUtils]: 46: Hoare triple {29726#(and (or (<= main_i 92) (<= main_n 47)) (or (< 47 main_n) (<= 92 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {29726#(and (or (<= main_i 92) (<= main_n 47)) (or (< 47 main_n) (<= 92 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:55,962 INFO L273 TraceCheckUtils]: 47: Hoare triple {29726#(and (or (<= main_i 92) (<= main_n 47)) (or (< 47 main_n) (<= 92 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {29727#(and (or (< 47 main_n) (<= 96 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 96) (<= main_n 47)))} is VALID [2019-01-31 14:39:55,962 INFO L273 TraceCheckUtils]: 48: Hoare triple {29727#(and (or (< 47 main_n) (<= 96 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 96) (<= main_n 47)))} assume i <= n * 4; {29727#(and (or (< 47 main_n) (<= 96 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 96) (<= main_n 47)))} is VALID [2019-01-31 14:39:55,963 INFO L273 TraceCheckUtils]: 49: Hoare triple {29727#(and (or (< 47 main_n) (<= 96 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 96) (<= main_n 47)))} assume a[i] != 23;i := i + 4; {29728#(and (or (<= main_i 100) (<= main_n 47)) (= 23 (select main_a (* 4 main_n))) (or (< 47 main_n) (<= 100 main_i)))} is VALID [2019-01-31 14:39:55,964 INFO L273 TraceCheckUtils]: 50: Hoare triple {29728#(and (or (<= main_i 100) (<= main_n 47)) (= 23 (select main_a (* 4 main_n))) (or (< 47 main_n) (<= 100 main_i)))} assume i <= n * 4; {29728#(and (or (<= main_i 100) (<= main_n 47)) (= 23 (select main_a (* 4 main_n))) (or (< 47 main_n) (<= 100 main_i)))} is VALID [2019-01-31 14:39:55,965 INFO L273 TraceCheckUtils]: 51: Hoare triple {29728#(and (or (<= main_i 100) (<= main_n 47)) (= 23 (select main_a (* 4 main_n))) (or (< 47 main_n) (<= 100 main_i)))} assume a[i] != 23;i := i + 4; {29729#(and (or (< 47 main_n) (<= 104 main_i)) (or (<= main_i 104) (<= main_n 47)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:55,966 INFO L273 TraceCheckUtils]: 52: Hoare triple {29729#(and (or (< 47 main_n) (<= 104 main_i)) (or (<= main_i 104) (<= main_n 47)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {29729#(and (or (< 47 main_n) (<= 104 main_i)) (or (<= main_i 104) (<= main_n 47)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:55,967 INFO L273 TraceCheckUtils]: 53: Hoare triple {29729#(and (or (< 47 main_n) (<= 104 main_i)) (or (<= main_i 104) (<= main_n 47)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {29730#(and (or (<= main_i 108) (<= main_n 47)) (or (< 47 main_n) (<= 108 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:55,968 INFO L273 TraceCheckUtils]: 54: Hoare triple {29730#(and (or (<= main_i 108) (<= main_n 47)) (or (< 47 main_n) (<= 108 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {29730#(and (or (<= main_i 108) (<= main_n 47)) (or (< 47 main_n) (<= 108 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:55,969 INFO L273 TraceCheckUtils]: 55: Hoare triple {29730#(and (or (<= main_i 108) (<= main_n 47)) (or (< 47 main_n) (<= 108 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {29731#(and (or (< 47 main_n) (<= 112 main_i)) (or (<= main_n 47) (<= main_i 112)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:55,969 INFO L273 TraceCheckUtils]: 56: Hoare triple {29731#(and (or (< 47 main_n) (<= 112 main_i)) (or (<= main_n 47) (<= main_i 112)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {29731#(and (or (< 47 main_n) (<= 112 main_i)) (or (<= main_n 47) (<= main_i 112)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:55,970 INFO L273 TraceCheckUtils]: 57: Hoare triple {29731#(and (or (< 47 main_n) (<= 112 main_i)) (or (<= main_n 47) (<= main_i 112)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {29732#(and (or (<= main_i 116) (<= main_n 47)) (or (<= 116 main_i) (< 47 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:55,971 INFO L273 TraceCheckUtils]: 58: Hoare triple {29732#(and (or (<= main_i 116) (<= main_n 47)) (or (<= 116 main_i) (< 47 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {29732#(and (or (<= main_i 116) (<= main_n 47)) (or (<= 116 main_i) (< 47 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:55,972 INFO L273 TraceCheckUtils]: 59: Hoare triple {29732#(and (or (<= main_i 116) (<= main_n 47)) (or (<= 116 main_i) (< 47 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {29733#(and (or (<= main_i 120) (<= main_n 47)) (= 23 (select main_a (* 4 main_n))) (or (<= 120 main_i) (< 47 main_n)))} is VALID [2019-01-31 14:39:55,973 INFO L273 TraceCheckUtils]: 60: Hoare triple {29733#(and (or (<= main_i 120) (<= main_n 47)) (= 23 (select main_a (* 4 main_n))) (or (<= 120 main_i) (< 47 main_n)))} assume i <= n * 4; {29733#(and (or (<= main_i 120) (<= main_n 47)) (= 23 (select main_a (* 4 main_n))) (or (<= 120 main_i) (< 47 main_n)))} is VALID [2019-01-31 14:39:55,974 INFO L273 TraceCheckUtils]: 61: Hoare triple {29733#(and (or (<= main_i 120) (<= main_n 47)) (= 23 (select main_a (* 4 main_n))) (or (<= 120 main_i) (< 47 main_n)))} assume a[i] != 23;i := i + 4; {29734#(and (or (<= main_i 124) (<= main_n 47)) (or (<= 124 main_i) (< 47 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:55,975 INFO L273 TraceCheckUtils]: 62: Hoare triple {29734#(and (or (<= main_i 124) (<= main_n 47)) (or (<= 124 main_i) (< 47 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {29734#(and (or (<= main_i 124) (<= main_n 47)) (or (<= 124 main_i) (< 47 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:55,976 INFO L273 TraceCheckUtils]: 63: Hoare triple {29734#(and (or (<= main_i 124) (<= main_n 47)) (or (<= 124 main_i) (< 47 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {29735#(and (or (<= main_i 128) (<= main_n 47)) (or (< 47 main_n) (<= 128 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:55,977 INFO L273 TraceCheckUtils]: 64: Hoare triple {29735#(and (or (<= main_i 128) (<= main_n 47)) (or (< 47 main_n) (<= 128 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {29735#(and (or (<= main_i 128) (<= main_n 47)) (or (< 47 main_n) (<= 128 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:55,978 INFO L273 TraceCheckUtils]: 65: Hoare triple {29735#(and (or (<= main_i 128) (<= main_n 47)) (or (< 47 main_n) (<= 128 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {29736#(and (or (<= 132 main_i) (< 47 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 132) (<= main_n 47)))} is VALID [2019-01-31 14:39:55,978 INFO L273 TraceCheckUtils]: 66: Hoare triple {29736#(and (or (<= 132 main_i) (< 47 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 132) (<= main_n 47)))} assume i <= n * 4; {29736#(and (or (<= 132 main_i) (< 47 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 132) (<= main_n 47)))} is VALID [2019-01-31 14:39:55,979 INFO L273 TraceCheckUtils]: 67: Hoare triple {29736#(and (or (<= 132 main_i) (< 47 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 132) (<= main_n 47)))} assume a[i] != 23;i := i + 4; {29737#(and (or (<= main_i 136) (<= main_n 47)) (or (<= 136 main_i) (< 47 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:55,980 INFO L273 TraceCheckUtils]: 68: Hoare triple {29737#(and (or (<= main_i 136) (<= main_n 47)) (or (<= 136 main_i) (< 47 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {29737#(and (or (<= main_i 136) (<= main_n 47)) (or (<= 136 main_i) (< 47 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:55,981 INFO L273 TraceCheckUtils]: 69: Hoare triple {29737#(and (or (<= main_i 136) (<= main_n 47)) (or (<= 136 main_i) (< 47 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {29738#(and (or (<= main_n 47) (<= main_i 140)) (or (< 47 main_n) (<= 140 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:55,982 INFO L273 TraceCheckUtils]: 70: Hoare triple {29738#(and (or (<= main_n 47) (<= main_i 140)) (or (< 47 main_n) (<= 140 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {29738#(and (or (<= main_n 47) (<= main_i 140)) (or (< 47 main_n) (<= 140 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:55,983 INFO L273 TraceCheckUtils]: 71: Hoare triple {29738#(and (or (<= main_n 47) (<= main_i 140)) (or (< 47 main_n) (<= 140 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {29739#(and (or (<= main_n 47) (<= main_i 144)) (or (< 47 main_n) (<= 144 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:55,984 INFO L273 TraceCheckUtils]: 72: Hoare triple {29739#(and (or (<= main_n 47) (<= main_i 144)) (or (< 47 main_n) (<= 144 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {29739#(and (or (<= main_n 47) (<= main_i 144)) (or (< 47 main_n) (<= 144 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:55,985 INFO L273 TraceCheckUtils]: 73: Hoare triple {29739#(and (or (<= main_n 47) (<= main_i 144)) (or (< 47 main_n) (<= 144 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {29740#(and (or (<= main_i 148) (<= main_n 47)) (= 23 (select main_a (* 4 main_n))) (or (< 47 main_n) (<= 148 main_i)))} is VALID [2019-01-31 14:39:55,986 INFO L273 TraceCheckUtils]: 74: Hoare triple {29740#(and (or (<= main_i 148) (<= main_n 47)) (= 23 (select main_a (* 4 main_n))) (or (< 47 main_n) (<= 148 main_i)))} assume i <= n * 4; {29740#(and (or (<= main_i 148) (<= main_n 47)) (= 23 (select main_a (* 4 main_n))) (or (< 47 main_n) (<= 148 main_i)))} is VALID [2019-01-31 14:39:55,987 INFO L273 TraceCheckUtils]: 75: Hoare triple {29740#(and (or (<= main_i 148) (<= main_n 47)) (= 23 (select main_a (* 4 main_n))) (or (< 47 main_n) (<= 148 main_i)))} assume a[i] != 23;i := i + 4; {29741#(and (or (<= main_n 47) (<= main_i 152)) (or (<= 152 main_i) (< 47 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:55,987 INFO L273 TraceCheckUtils]: 76: Hoare triple {29741#(and (or (<= main_n 47) (<= main_i 152)) (or (<= 152 main_i) (< 47 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {29741#(and (or (<= main_n 47) (<= main_i 152)) (or (<= 152 main_i) (< 47 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:55,988 INFO L273 TraceCheckUtils]: 77: Hoare triple {29741#(and (or (<= main_n 47) (<= main_i 152)) (or (<= 152 main_i) (< 47 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {29742#(and (or (<= 156 main_i) (< 47 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 156) (<= main_n 47)))} is VALID [2019-01-31 14:39:55,989 INFO L273 TraceCheckUtils]: 78: Hoare triple {29742#(and (or (<= 156 main_i) (< 47 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 156) (<= main_n 47)))} assume i <= n * 4; {29742#(and (or (<= 156 main_i) (< 47 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 156) (<= main_n 47)))} is VALID [2019-01-31 14:39:55,990 INFO L273 TraceCheckUtils]: 79: Hoare triple {29742#(and (or (<= 156 main_i) (< 47 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 156) (<= main_n 47)))} assume a[i] != 23;i := i + 4; {29743#(and (or (<= 160 main_i) (< 47 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 47) (<= main_i 160)))} is VALID [2019-01-31 14:39:55,991 INFO L273 TraceCheckUtils]: 80: Hoare triple {29743#(and (or (<= 160 main_i) (< 47 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 47) (<= main_i 160)))} assume i <= n * 4; {29743#(and (or (<= 160 main_i) (< 47 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 47) (<= main_i 160)))} is VALID [2019-01-31 14:39:55,992 INFO L273 TraceCheckUtils]: 81: Hoare triple {29743#(and (or (<= 160 main_i) (< 47 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 47) (<= main_i 160)))} assume a[i] != 23;i := i + 4; {29744#(and (or (<= 164 main_i) (< 47 main_n)) (or (<= main_i 164) (<= main_n 47)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:55,993 INFO L273 TraceCheckUtils]: 82: Hoare triple {29744#(and (or (<= 164 main_i) (< 47 main_n)) (or (<= main_i 164) (<= main_n 47)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {29744#(and (or (<= 164 main_i) (< 47 main_n)) (or (<= main_i 164) (<= main_n 47)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:55,994 INFO L273 TraceCheckUtils]: 83: Hoare triple {29744#(and (or (<= 164 main_i) (< 47 main_n)) (or (<= main_i 164) (<= main_n 47)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {29745#(and (or (<= 168 main_i) (< 47 main_n)) (or (<= main_i 168) (<= main_n 47)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:55,995 INFO L273 TraceCheckUtils]: 84: Hoare triple {29745#(and (or (<= 168 main_i) (< 47 main_n)) (or (<= main_i 168) (<= main_n 47)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {29745#(and (or (<= 168 main_i) (< 47 main_n)) (or (<= main_i 168) (<= main_n 47)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:55,996 INFO L273 TraceCheckUtils]: 85: Hoare triple {29745#(and (or (<= 168 main_i) (< 47 main_n)) (or (<= main_i 168) (<= main_n 47)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {29746#(and (or (<= main_i 172) (<= main_n 47)) (or (< 47 main_n) (<= 172 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:55,996 INFO L273 TraceCheckUtils]: 86: Hoare triple {29746#(and (or (<= main_i 172) (<= main_n 47)) (or (< 47 main_n) (<= 172 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {29746#(and (or (<= main_i 172) (<= main_n 47)) (or (< 47 main_n) (<= 172 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:55,998 INFO L273 TraceCheckUtils]: 87: Hoare triple {29746#(and (or (<= main_i 172) (<= main_n 47)) (or (< 47 main_n) (<= 172 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {29747#(and (or (<= 176 main_i) (< 47 main_n)) (or (<= main_i 176) (<= main_n 47)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:55,998 INFO L273 TraceCheckUtils]: 88: Hoare triple {29747#(and (or (<= 176 main_i) (< 47 main_n)) (or (<= main_i 176) (<= main_n 47)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {29747#(and (or (<= 176 main_i) (< 47 main_n)) (or (<= main_i 176) (<= main_n 47)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:55,999 INFO L273 TraceCheckUtils]: 89: Hoare triple {29747#(and (or (<= 176 main_i) (< 47 main_n)) (or (<= main_i 176) (<= main_n 47)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {29748#(and (or (<= main_i 180) (<= main_n 47)) (or (< 47 main_n) (<= 180 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:56,000 INFO L273 TraceCheckUtils]: 90: Hoare triple {29748#(and (or (<= main_i 180) (<= main_n 47)) (or (< 47 main_n) (<= 180 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {29748#(and (or (<= main_i 180) (<= main_n 47)) (or (< 47 main_n) (<= 180 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:56,001 INFO L273 TraceCheckUtils]: 91: Hoare triple {29748#(and (or (<= main_i 180) (<= main_n 47)) (or (< 47 main_n) (<= 180 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {29749#(and (or (< 47 main_n) (<= 184 main_i)) (or (<= main_i 184) (<= main_n 47)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:56,002 INFO L273 TraceCheckUtils]: 92: Hoare triple {29749#(and (or (< 47 main_n) (<= 184 main_i)) (or (<= main_i 184) (<= main_n 47)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {29749#(and (or (< 47 main_n) (<= 184 main_i)) (or (<= main_i 184) (<= main_n 47)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:39:56,003 INFO L273 TraceCheckUtils]: 93: Hoare triple {29749#(and (or (< 47 main_n) (<= 184 main_i)) (or (<= main_i 184) (<= main_n 47)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {29750#(and (or (= (* 4 main_n) main_i) (and (or (< 47 main_n) (<= (* 4 main_n) main_i)) (or (<= main_i 188) (<= main_n 47)))) (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))))} is VALID [2019-01-31 14:39:56,004 INFO L273 TraceCheckUtils]: 94: Hoare triple {29750#(and (or (= (* 4 main_n) main_i) (and (or (< 47 main_n) (<= (* 4 main_n) main_i)) (or (<= main_i 188) (<= main_n 47)))) (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))))} assume i <= n * 4; {29751#(and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (or (= (* 4 main_n) main_i) (and (<= main_i 188) (< 47 main_n))))} is VALID [2019-01-31 14:39:56,005 INFO L273 TraceCheckUtils]: 95: Hoare triple {29751#(and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (or (= (* 4 main_n) main_i) (and (<= main_i 188) (< 47 main_n))))} assume a[i] != 23;i := i + 4; {29752#(and (<= main_i 192) (<= 48 main_n))} is VALID [2019-01-31 14:39:56,006 INFO L273 TraceCheckUtils]: 96: Hoare triple {29752#(and (<= main_i 192) (<= 48 main_n))} assume !(i <= n * 4); {29702#false} is VALID [2019-01-31 14:39:56,060 INFO L134 CoverageAnalysis]: Checked inductivity of 2256 backedges. 0 proven. 2256 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-31 14:39:56,060 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-31 14:39:56,060 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-01-31 14:39:56,060 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-01-31 14:39:56,060 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-01-31 14:39:56,060 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-31 14:39:56,060 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 14:39:56,069 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2019-01-31 14:39:56,069 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST2 (IT: FPandBP) [2019-01-31 14:39:56,140 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 48 check-sat command(s) [2019-01-31 14:39:56,140 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-01-31 14:39:56,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-31 14:39:56,170 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-31 14:39:56,271 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 14:39:56,296 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-01-31 14:39:56,361 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-31 14:39:56,361 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2019-01-31 14:39:56,375 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-01-31 14:39:56,375 WARN L398 uantifierElimination]: Input elimination task: ∃ [v_main_a_51]. (and (= (store v_main_a_51 (* 4 main_n) 23) main_a) (= main_i 0)) [2019-01-31 14:39:56,375 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2019-01-31 14:40:01,124 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2019-01-31 14:40:01,126 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-01-31 14:40:01,132 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-31 14:40:01,132 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2019-01-31 14:40:01,135 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-01-31 14:40:01,135 WARN L398 uantifierElimination]: Input elimination task: ∃ [main_a]. (let ((.cse0 (* 4 main_n))) (and (<= 188 .cse0) (<= main_i 192) (= 23 (select main_a .cse0)) (not (= (select main_a 188) 23)))) [2019-01-31 14:40:01,136 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (let ((.cse0 (* 4 main_n))) (and (<= 188 .cse0) (not (= 188 .cse0)) (<= main_i 192))) [2019-01-31 14:40:01,196 INFO L273 TraceCheckUtils]: 0: Hoare triple {29701#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {29756#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:01,196 INFO L273 TraceCheckUtils]: 1: Hoare triple {29756#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {29760#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2019-01-31 14:40:01,197 INFO L273 TraceCheckUtils]: 2: Hoare triple {29760#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume i <= n * 4; {29760#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2019-01-31 14:40:01,197 INFO L273 TraceCheckUtils]: 3: Hoare triple {29760#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume a[i] != 23;i := i + 4; {29767#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:01,198 INFO L273 TraceCheckUtils]: 4: Hoare triple {29767#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {29767#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:01,199 INFO L273 TraceCheckUtils]: 5: Hoare triple {29767#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {29774#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2019-01-31 14:40:01,200 INFO L273 TraceCheckUtils]: 6: Hoare triple {29774#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume i <= n * 4; {29774#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2019-01-31 14:40:01,200 INFO L273 TraceCheckUtils]: 7: Hoare triple {29774#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume a[i] != 23;i := i + 4; {29781#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:01,201 INFO L273 TraceCheckUtils]: 8: Hoare triple {29781#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {29781#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:01,202 INFO L273 TraceCheckUtils]: 9: Hoare triple {29781#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {29788#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:01,202 INFO L273 TraceCheckUtils]: 10: Hoare triple {29788#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {29788#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:01,203 INFO L273 TraceCheckUtils]: 11: Hoare triple {29788#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {29795#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:01,204 INFO L273 TraceCheckUtils]: 12: Hoare triple {29795#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {29795#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:01,204 INFO L273 TraceCheckUtils]: 13: Hoare triple {29795#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {29802#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:01,205 INFO L273 TraceCheckUtils]: 14: Hoare triple {29802#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {29802#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:01,206 INFO L273 TraceCheckUtils]: 15: Hoare triple {29802#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {29809#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:01,206 INFO L273 TraceCheckUtils]: 16: Hoare triple {29809#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {29809#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:01,207 INFO L273 TraceCheckUtils]: 17: Hoare triple {29809#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {29816#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:01,208 INFO L273 TraceCheckUtils]: 18: Hoare triple {29816#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {29816#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:01,209 INFO L273 TraceCheckUtils]: 19: Hoare triple {29816#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {29823#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:01,209 INFO L273 TraceCheckUtils]: 20: Hoare triple {29823#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {29823#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:01,210 INFO L273 TraceCheckUtils]: 21: Hoare triple {29823#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {29830#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:01,211 INFO L273 TraceCheckUtils]: 22: Hoare triple {29830#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {29830#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:01,211 INFO L273 TraceCheckUtils]: 23: Hoare triple {29830#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {29837#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:01,212 INFO L273 TraceCheckUtils]: 24: Hoare triple {29837#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {29837#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:01,213 INFO L273 TraceCheckUtils]: 25: Hoare triple {29837#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {29844#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:01,214 INFO L273 TraceCheckUtils]: 26: Hoare triple {29844#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {29844#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:01,214 INFO L273 TraceCheckUtils]: 27: Hoare triple {29844#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {29851#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:01,215 INFO L273 TraceCheckUtils]: 28: Hoare triple {29851#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {29851#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:01,216 INFO L273 TraceCheckUtils]: 29: Hoare triple {29851#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {29858#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:01,216 INFO L273 TraceCheckUtils]: 30: Hoare triple {29858#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {29858#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:01,217 INFO L273 TraceCheckUtils]: 31: Hoare triple {29858#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {29865#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:01,218 INFO L273 TraceCheckUtils]: 32: Hoare triple {29865#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {29865#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:01,218 INFO L273 TraceCheckUtils]: 33: Hoare triple {29865#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {29872#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:01,219 INFO L273 TraceCheckUtils]: 34: Hoare triple {29872#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {29872#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:01,220 INFO L273 TraceCheckUtils]: 35: Hoare triple {29872#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {29879#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:01,221 INFO L273 TraceCheckUtils]: 36: Hoare triple {29879#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {29879#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:01,221 INFO L273 TraceCheckUtils]: 37: Hoare triple {29879#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {29886#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:01,222 INFO L273 TraceCheckUtils]: 38: Hoare triple {29886#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {29886#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:01,223 INFO L273 TraceCheckUtils]: 39: Hoare triple {29886#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {29893#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} is VALID [2019-01-31 14:40:01,223 INFO L273 TraceCheckUtils]: 40: Hoare triple {29893#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} assume i <= n * 4; {29893#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} is VALID [2019-01-31 14:40:01,224 INFO L273 TraceCheckUtils]: 41: Hoare triple {29893#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} assume a[i] != 23;i := i + 4; {29900#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:01,225 INFO L273 TraceCheckUtils]: 42: Hoare triple {29900#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {29900#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:01,226 INFO L273 TraceCheckUtils]: 43: Hoare triple {29900#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {29907#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:01,226 INFO L273 TraceCheckUtils]: 44: Hoare triple {29907#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {29907#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:01,227 INFO L273 TraceCheckUtils]: 45: Hoare triple {29907#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {29914#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:01,228 INFO L273 TraceCheckUtils]: 46: Hoare triple {29914#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {29914#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:01,229 INFO L273 TraceCheckUtils]: 47: Hoare triple {29914#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {29921#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:01,229 INFO L273 TraceCheckUtils]: 48: Hoare triple {29921#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {29921#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:01,230 INFO L273 TraceCheckUtils]: 49: Hoare triple {29921#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {29928#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:01,231 INFO L273 TraceCheckUtils]: 50: Hoare triple {29928#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {29928#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:01,232 INFO L273 TraceCheckUtils]: 51: Hoare triple {29928#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {29935#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:01,232 INFO L273 TraceCheckUtils]: 52: Hoare triple {29935#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {29935#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:01,233 INFO L273 TraceCheckUtils]: 53: Hoare triple {29935#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {29942#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:01,234 INFO L273 TraceCheckUtils]: 54: Hoare triple {29942#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {29942#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:01,234 INFO L273 TraceCheckUtils]: 55: Hoare triple {29942#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {29949#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:01,235 INFO L273 TraceCheckUtils]: 56: Hoare triple {29949#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {29949#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:01,236 INFO L273 TraceCheckUtils]: 57: Hoare triple {29949#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {29956#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:01,236 INFO L273 TraceCheckUtils]: 58: Hoare triple {29956#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {29956#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:01,237 INFO L273 TraceCheckUtils]: 59: Hoare triple {29956#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {29963#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:01,238 INFO L273 TraceCheckUtils]: 60: Hoare triple {29963#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {29963#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:01,238 INFO L273 TraceCheckUtils]: 61: Hoare triple {29963#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {29970#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:01,239 INFO L273 TraceCheckUtils]: 62: Hoare triple {29970#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {29970#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:01,240 INFO L273 TraceCheckUtils]: 63: Hoare triple {29970#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {29977#(and (= main_i 128) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:01,241 INFO L273 TraceCheckUtils]: 64: Hoare triple {29977#(and (= main_i 128) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {29977#(and (= main_i 128) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:01,241 INFO L273 TraceCheckUtils]: 65: Hoare triple {29977#(and (= main_i 128) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {29984#(and (= main_i 132) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:01,242 INFO L273 TraceCheckUtils]: 66: Hoare triple {29984#(and (= main_i 132) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {29984#(and (= main_i 132) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:01,243 INFO L273 TraceCheckUtils]: 67: Hoare triple {29984#(and (= main_i 132) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {29991#(and (= main_i 136) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:01,244 INFO L273 TraceCheckUtils]: 68: Hoare triple {29991#(and (= main_i 136) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {29991#(and (= main_i 136) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:01,244 INFO L273 TraceCheckUtils]: 69: Hoare triple {29991#(and (= main_i 136) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {29998#(and (= 23 (select main_a (* 4 main_n))) (= main_i 140))} is VALID [2019-01-31 14:40:01,245 INFO L273 TraceCheckUtils]: 70: Hoare triple {29998#(and (= 23 (select main_a (* 4 main_n))) (= main_i 140))} assume i <= n * 4; {29998#(and (= 23 (select main_a (* 4 main_n))) (= main_i 140))} is VALID [2019-01-31 14:40:01,246 INFO L273 TraceCheckUtils]: 71: Hoare triple {29998#(and (= 23 (select main_a (* 4 main_n))) (= main_i 140))} assume a[i] != 23;i := i + 4; {30005#(and (= main_i 144) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:01,247 INFO L273 TraceCheckUtils]: 72: Hoare triple {30005#(and (= main_i 144) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {30005#(and (= main_i 144) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:01,247 INFO L273 TraceCheckUtils]: 73: Hoare triple {30005#(and (= main_i 144) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {30012#(and (= main_i 148) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:01,248 INFO L273 TraceCheckUtils]: 74: Hoare triple {30012#(and (= main_i 148) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {30012#(and (= main_i 148) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:01,249 INFO L273 TraceCheckUtils]: 75: Hoare triple {30012#(and (= main_i 148) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {30019#(and (= main_i 152) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:01,249 INFO L273 TraceCheckUtils]: 76: Hoare triple {30019#(and (= main_i 152) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {30019#(and (= main_i 152) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:01,250 INFO L273 TraceCheckUtils]: 77: Hoare triple {30019#(and (= main_i 152) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {30026#(and (= main_i 156) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:01,251 INFO L273 TraceCheckUtils]: 78: Hoare triple {30026#(and (= main_i 156) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {30026#(and (= main_i 156) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:01,252 INFO L273 TraceCheckUtils]: 79: Hoare triple {30026#(and (= main_i 156) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {30033#(and (= main_i 160) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:01,252 INFO L273 TraceCheckUtils]: 80: Hoare triple {30033#(and (= main_i 160) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {30033#(and (= main_i 160) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:01,253 INFO L273 TraceCheckUtils]: 81: Hoare triple {30033#(and (= main_i 160) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {30040#(and (= 23 (select main_a (* 4 main_n))) (= main_i 164))} is VALID [2019-01-31 14:40:01,254 INFO L273 TraceCheckUtils]: 82: Hoare triple {30040#(and (= 23 (select main_a (* 4 main_n))) (= main_i 164))} assume i <= n * 4; {30040#(and (= 23 (select main_a (* 4 main_n))) (= main_i 164))} is VALID [2019-01-31 14:40:01,254 INFO L273 TraceCheckUtils]: 83: Hoare triple {30040#(and (= 23 (select main_a (* 4 main_n))) (= main_i 164))} assume a[i] != 23;i := i + 4; {30047#(and (= main_i 168) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:01,255 INFO L273 TraceCheckUtils]: 84: Hoare triple {30047#(and (= main_i 168) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {30047#(and (= main_i 168) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:01,256 INFO L273 TraceCheckUtils]: 85: Hoare triple {30047#(and (= main_i 168) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {30054#(and (= main_i 172) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:01,256 INFO L273 TraceCheckUtils]: 86: Hoare triple {30054#(and (= main_i 172) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {30054#(and (= main_i 172) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:01,257 INFO L273 TraceCheckUtils]: 87: Hoare triple {30054#(and (= main_i 172) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {30061#(and (= main_i 176) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:01,258 INFO L273 TraceCheckUtils]: 88: Hoare triple {30061#(and (= main_i 176) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {30061#(and (= main_i 176) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:01,259 INFO L273 TraceCheckUtils]: 89: Hoare triple {30061#(and (= main_i 176) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {30068#(and (= main_i 180) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:01,259 INFO L273 TraceCheckUtils]: 90: Hoare triple {30068#(and (= main_i 180) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {30068#(and (= main_i 180) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:01,260 INFO L273 TraceCheckUtils]: 91: Hoare triple {30068#(and (= main_i 180) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {30075#(and (= main_i 184) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:01,261 INFO L273 TraceCheckUtils]: 92: Hoare triple {30075#(and (= main_i 184) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {30075#(and (= main_i 184) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:01,261 INFO L273 TraceCheckUtils]: 93: Hoare triple {30075#(and (= main_i 184) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {30082#(and (= main_i 188) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:01,262 INFO L273 TraceCheckUtils]: 94: Hoare triple {30082#(and (= main_i 188) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {30086#(and (= main_i 188) (<= main_i (* 4 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:01,263 INFO L273 TraceCheckUtils]: 95: Hoare triple {30086#(and (= main_i 188) (<= main_i (* 4 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {29752#(and (<= main_i 192) (<= 48 main_n))} is VALID [2019-01-31 14:40:01,264 INFO L273 TraceCheckUtils]: 96: Hoare triple {29752#(and (<= main_i 192) (<= 48 main_n))} assume !(i <= n * 4); {29702#false} is VALID [2019-01-31 14:40:01,287 INFO L134 CoverageAnalysis]: Checked inductivity of 2256 backedges. 0 proven. 2256 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-31 14:40:01,288 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2019-01-31 14:40:07,879 INFO L273 TraceCheckUtils]: 96: Hoare triple {30093#(<= main_i (* 4 main_n))} assume !(i <= n * 4); {29702#false} is VALID [2019-01-31 14:40:07,880 INFO L273 TraceCheckUtils]: 95: Hoare triple {30097#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} assume a[i] != 23;i := i + 4; {30093#(<= main_i (* 4 main_n))} is VALID [2019-01-31 14:40:07,881 INFO L273 TraceCheckUtils]: 94: Hoare triple {30101#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} assume i <= n * 4; {30097#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} is VALID [2019-01-31 14:40:07,881 INFO L273 TraceCheckUtils]: 93: Hoare triple {30105#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume a[i] != 23;i := i + 4; {30101#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} is VALID [2019-01-31 14:40:07,882 INFO L273 TraceCheckUtils]: 92: Hoare triple {30105#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume i <= n * 4; {30105#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2019-01-31 14:40:07,882 INFO L273 TraceCheckUtils]: 91: Hoare triple {30112#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume a[i] != 23;i := i + 4; {30105#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2019-01-31 14:40:07,883 INFO L273 TraceCheckUtils]: 90: Hoare triple {30112#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume i <= n * 4; {30112#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2019-01-31 14:40:07,884 INFO L273 TraceCheckUtils]: 89: Hoare triple {30119#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume a[i] != 23;i := i + 4; {30112#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2019-01-31 14:40:07,885 INFO L273 TraceCheckUtils]: 88: Hoare triple {30119#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume i <= n * 4; {30119#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2019-01-31 14:40:07,886 INFO L273 TraceCheckUtils]: 87: Hoare triple {30126#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume a[i] != 23;i := i + 4; {30119#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2019-01-31 14:40:07,886 INFO L273 TraceCheckUtils]: 86: Hoare triple {30126#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume i <= n * 4; {30126#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2019-01-31 14:40:07,887 INFO L273 TraceCheckUtils]: 85: Hoare triple {30133#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {30126#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2019-01-31 14:40:07,888 INFO L273 TraceCheckUtils]: 84: Hoare triple {30133#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume i <= n * 4; {30133#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2019-01-31 14:40:07,889 INFO L273 TraceCheckUtils]: 83: Hoare triple {30140#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume a[i] != 23;i := i + 4; {30133#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2019-01-31 14:40:07,889 INFO L273 TraceCheckUtils]: 82: Hoare triple {30140#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume i <= n * 4; {30140#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2019-01-31 14:40:07,890 INFO L273 TraceCheckUtils]: 81: Hoare triple {30147#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {30140#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2019-01-31 14:40:07,891 INFO L273 TraceCheckUtils]: 80: Hoare triple {30147#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume i <= n * 4; {30147#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2019-01-31 14:40:07,892 INFO L273 TraceCheckUtils]: 79: Hoare triple {30154#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {30147#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2019-01-31 14:40:07,893 INFO L273 TraceCheckUtils]: 78: Hoare triple {30154#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume i <= n * 4; {30154#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2019-01-31 14:40:07,894 INFO L273 TraceCheckUtils]: 77: Hoare triple {30161#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {30154#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2019-01-31 14:40:07,894 INFO L273 TraceCheckUtils]: 76: Hoare triple {30161#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume i <= n * 4; {30161#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2019-01-31 14:40:07,895 INFO L273 TraceCheckUtils]: 75: Hoare triple {30168#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} assume a[i] != 23;i := i + 4; {30161#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2019-01-31 14:40:07,896 INFO L273 TraceCheckUtils]: 74: Hoare triple {30168#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} assume i <= n * 4; {30168#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} is VALID [2019-01-31 14:40:07,897 INFO L273 TraceCheckUtils]: 73: Hoare triple {30175#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {30168#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} is VALID [2019-01-31 14:40:07,897 INFO L273 TraceCheckUtils]: 72: Hoare triple {30175#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} assume i <= n * 4; {30175#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} is VALID [2019-01-31 14:40:07,898 INFO L273 TraceCheckUtils]: 71: Hoare triple {30182#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {30175#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} is VALID [2019-01-31 14:40:07,899 INFO L273 TraceCheckUtils]: 70: Hoare triple {30182#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} assume i <= n * 4; {30182#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} is VALID [2019-01-31 14:40:07,900 INFO L273 TraceCheckUtils]: 69: Hoare triple {30189#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} assume a[i] != 23;i := i + 4; {30182#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} is VALID [2019-01-31 14:40:07,900 INFO L273 TraceCheckUtils]: 68: Hoare triple {30189#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} assume i <= n * 4; {30189#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} is VALID [2019-01-31 14:40:07,902 INFO L273 TraceCheckUtils]: 67: Hoare triple {30196#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {30189#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} is VALID [2019-01-31 14:40:07,902 INFO L273 TraceCheckUtils]: 66: Hoare triple {30196#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} assume i <= n * 4; {30196#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} is VALID [2019-01-31 14:40:07,903 INFO L273 TraceCheckUtils]: 65: Hoare triple {30203#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} assume a[i] != 23;i := i + 4; {30196#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} is VALID [2019-01-31 14:40:07,904 INFO L273 TraceCheckUtils]: 64: Hoare triple {30203#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} assume i <= n * 4; {30203#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} is VALID [2019-01-31 14:40:07,905 INFO L273 TraceCheckUtils]: 63: Hoare triple {30210#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} assume a[i] != 23;i := i + 4; {30203#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} is VALID [2019-01-31 14:40:07,905 INFO L273 TraceCheckUtils]: 62: Hoare triple {30210#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} assume i <= n * 4; {30210#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} is VALID [2019-01-31 14:40:07,906 INFO L273 TraceCheckUtils]: 61: Hoare triple {30217#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} assume a[i] != 23;i := i + 4; {30210#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} is VALID [2019-01-31 14:40:07,907 INFO L273 TraceCheckUtils]: 60: Hoare triple {30217#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} assume i <= n * 4; {30217#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} is VALID [2019-01-31 14:40:07,908 INFO L273 TraceCheckUtils]: 59: Hoare triple {30224#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} assume a[i] != 23;i := i + 4; {30217#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} is VALID [2019-01-31 14:40:07,908 INFO L273 TraceCheckUtils]: 58: Hoare triple {30224#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} assume i <= n * 4; {30224#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} is VALID [2019-01-31 14:40:07,909 INFO L273 TraceCheckUtils]: 57: Hoare triple {30231#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} assume a[i] != 23;i := i + 4; {30224#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} is VALID [2019-01-31 14:40:07,910 INFO L273 TraceCheckUtils]: 56: Hoare triple {30231#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} assume i <= n * 4; {30231#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} is VALID [2019-01-31 14:40:07,911 INFO L273 TraceCheckUtils]: 55: Hoare triple {30238#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} assume a[i] != 23;i := i + 4; {30231#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} is VALID [2019-01-31 14:40:07,912 INFO L273 TraceCheckUtils]: 54: Hoare triple {30238#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} assume i <= n * 4; {30238#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} is VALID [2019-01-31 14:40:07,913 INFO L273 TraceCheckUtils]: 53: Hoare triple {30245#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {30238#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} is VALID [2019-01-31 14:40:07,913 INFO L273 TraceCheckUtils]: 52: Hoare triple {30245#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} assume i <= n * 4; {30245#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} is VALID [2019-01-31 14:40:07,914 INFO L273 TraceCheckUtils]: 51: Hoare triple {30252#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {30245#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} is VALID [2019-01-31 14:40:07,915 INFO L273 TraceCheckUtils]: 50: Hoare triple {30252#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} assume i <= n * 4; {30252#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} is VALID [2019-01-31 14:40:07,916 INFO L273 TraceCheckUtils]: 49: Hoare triple {30259#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {30252#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} is VALID [2019-01-31 14:40:07,917 INFO L273 TraceCheckUtils]: 48: Hoare triple {30259#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} assume i <= n * 4; {30259#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} is VALID [2019-01-31 14:40:07,918 INFO L273 TraceCheckUtils]: 47: Hoare triple {30266#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} assume a[i] != 23;i := i + 4; {30259#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} is VALID [2019-01-31 14:40:07,918 INFO L273 TraceCheckUtils]: 46: Hoare triple {30266#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} assume i <= n * 4; {30266#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} is VALID [2019-01-31 14:40:07,919 INFO L273 TraceCheckUtils]: 45: Hoare triple {30273#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {30266#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} is VALID [2019-01-31 14:40:07,920 INFO L273 TraceCheckUtils]: 44: Hoare triple {30273#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} assume i <= n * 4; {30273#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} is VALID [2019-01-31 14:40:07,921 INFO L273 TraceCheckUtils]: 43: Hoare triple {30280#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} assume a[i] != 23;i := i + 4; {30273#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} is VALID [2019-01-31 14:40:07,921 INFO L273 TraceCheckUtils]: 42: Hoare triple {30280#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} assume i <= n * 4; {30280#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} is VALID [2019-01-31 14:40:07,922 INFO L273 TraceCheckUtils]: 41: Hoare triple {30287#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} assume a[i] != 23;i := i + 4; {30280#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} is VALID [2019-01-31 14:40:07,923 INFO L273 TraceCheckUtils]: 40: Hoare triple {30287#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} assume i <= n * 4; {30287#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} is VALID [2019-01-31 14:40:07,924 INFO L273 TraceCheckUtils]: 39: Hoare triple {30294#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} assume a[i] != 23;i := i + 4; {30287#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} is VALID [2019-01-31 14:40:07,925 INFO L273 TraceCheckUtils]: 38: Hoare triple {30294#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} assume i <= n * 4; {30294#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} is VALID [2019-01-31 14:40:07,926 INFO L273 TraceCheckUtils]: 37: Hoare triple {30301#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {30294#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} is VALID [2019-01-31 14:40:07,926 INFO L273 TraceCheckUtils]: 36: Hoare triple {30301#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} assume i <= n * 4; {30301#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} is VALID [2019-01-31 14:40:07,927 INFO L273 TraceCheckUtils]: 35: Hoare triple {30308#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {30301#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} is VALID [2019-01-31 14:40:07,928 INFO L273 TraceCheckUtils]: 34: Hoare triple {30308#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} assume i <= n * 4; {30308#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} is VALID [2019-01-31 14:40:07,929 INFO L273 TraceCheckUtils]: 33: Hoare triple {30315#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} assume a[i] != 23;i := i + 4; {30308#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} is VALID [2019-01-31 14:40:07,929 INFO L273 TraceCheckUtils]: 32: Hoare triple {30315#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} assume i <= n * 4; {30315#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} is VALID [2019-01-31 14:40:07,930 INFO L273 TraceCheckUtils]: 31: Hoare triple {30322#(or (< (* 4 main_n) (+ main_i 128)) (= (select main_a (+ main_i 128)) 23) (< (+ main_i 131) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {30315#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} is VALID [2019-01-31 14:40:07,931 INFO L273 TraceCheckUtils]: 30: Hoare triple {30322#(or (< (* 4 main_n) (+ main_i 128)) (= (select main_a (+ main_i 128)) 23) (< (+ main_i 131) (* 4 main_n)))} assume i <= n * 4; {30322#(or (< (* 4 main_n) (+ main_i 128)) (= (select main_a (+ main_i 128)) 23) (< (+ main_i 131) (* 4 main_n)))} is VALID [2019-01-31 14:40:07,932 INFO L273 TraceCheckUtils]: 29: Hoare triple {30329#(or (< (* 4 main_n) (+ main_i 132)) (< (+ main_i 135) (* 4 main_n)) (= (select main_a (+ main_i 132)) 23))} assume a[i] != 23;i := i + 4; {30322#(or (< (* 4 main_n) (+ main_i 128)) (= (select main_a (+ main_i 128)) 23) (< (+ main_i 131) (* 4 main_n)))} is VALID [2019-01-31 14:40:07,933 INFO L273 TraceCheckUtils]: 28: Hoare triple {30329#(or (< (* 4 main_n) (+ main_i 132)) (< (+ main_i 135) (* 4 main_n)) (= (select main_a (+ main_i 132)) 23))} assume i <= n * 4; {30329#(or (< (* 4 main_n) (+ main_i 132)) (< (+ main_i 135) (* 4 main_n)) (= (select main_a (+ main_i 132)) 23))} is VALID [2019-01-31 14:40:07,934 INFO L273 TraceCheckUtils]: 27: Hoare triple {30336#(or (< (+ main_i 139) (* 4 main_n)) (= (select main_a (+ main_i 136)) 23) (< (* 4 main_n) (+ main_i 136)))} assume a[i] != 23;i := i + 4; {30329#(or (< (* 4 main_n) (+ main_i 132)) (< (+ main_i 135) (* 4 main_n)) (= (select main_a (+ main_i 132)) 23))} is VALID [2019-01-31 14:40:07,934 INFO L273 TraceCheckUtils]: 26: Hoare triple {30336#(or (< (+ main_i 139) (* 4 main_n)) (= (select main_a (+ main_i 136)) 23) (< (* 4 main_n) (+ main_i 136)))} assume i <= n * 4; {30336#(or (< (+ main_i 139) (* 4 main_n)) (= (select main_a (+ main_i 136)) 23) (< (* 4 main_n) (+ main_i 136)))} is VALID [2019-01-31 14:40:07,935 INFO L273 TraceCheckUtils]: 25: Hoare triple {30343#(or (< (* 4 main_n) (+ main_i 140)) (< (+ main_i 143) (* 4 main_n)) (= (select main_a (+ main_i 140)) 23))} assume a[i] != 23;i := i + 4; {30336#(or (< (+ main_i 139) (* 4 main_n)) (= (select main_a (+ main_i 136)) 23) (< (* 4 main_n) (+ main_i 136)))} is VALID [2019-01-31 14:40:07,936 INFO L273 TraceCheckUtils]: 24: Hoare triple {30343#(or (< (* 4 main_n) (+ main_i 140)) (< (+ main_i 143) (* 4 main_n)) (= (select main_a (+ main_i 140)) 23))} assume i <= n * 4; {30343#(or (< (* 4 main_n) (+ main_i 140)) (< (+ main_i 143) (* 4 main_n)) (= (select main_a (+ main_i 140)) 23))} is VALID [2019-01-31 14:40:07,937 INFO L273 TraceCheckUtils]: 23: Hoare triple {30350#(or (= (select main_a (+ main_i 144)) 23) (< (+ main_i 147) (* 4 main_n)) (< (* 4 main_n) (+ main_i 144)))} assume a[i] != 23;i := i + 4; {30343#(or (< (* 4 main_n) (+ main_i 140)) (< (+ main_i 143) (* 4 main_n)) (= (select main_a (+ main_i 140)) 23))} is VALID [2019-01-31 14:40:07,937 INFO L273 TraceCheckUtils]: 22: Hoare triple {30350#(or (= (select main_a (+ main_i 144)) 23) (< (+ main_i 147) (* 4 main_n)) (< (* 4 main_n) (+ main_i 144)))} assume i <= n * 4; {30350#(or (= (select main_a (+ main_i 144)) 23) (< (+ main_i 147) (* 4 main_n)) (< (* 4 main_n) (+ main_i 144)))} is VALID [2019-01-31 14:40:07,938 INFO L273 TraceCheckUtils]: 21: Hoare triple {30357#(or (< (+ main_i 151) (* 4 main_n)) (< (* 4 main_n) (+ main_i 148)) (= (select main_a (+ main_i 148)) 23))} assume a[i] != 23;i := i + 4; {30350#(or (= (select main_a (+ main_i 144)) 23) (< (+ main_i 147) (* 4 main_n)) (< (* 4 main_n) (+ main_i 144)))} is VALID [2019-01-31 14:40:07,939 INFO L273 TraceCheckUtils]: 20: Hoare triple {30357#(or (< (+ main_i 151) (* 4 main_n)) (< (* 4 main_n) (+ main_i 148)) (= (select main_a (+ main_i 148)) 23))} assume i <= n * 4; {30357#(or (< (+ main_i 151) (* 4 main_n)) (< (* 4 main_n) (+ main_i 148)) (= (select main_a (+ main_i 148)) 23))} is VALID [2019-01-31 14:40:07,940 INFO L273 TraceCheckUtils]: 19: Hoare triple {30364#(or (= 23 (select main_a (+ main_i 152))) (< (+ main_i 155) (* 4 main_n)) (< (* 4 main_n) (+ main_i 152)))} assume a[i] != 23;i := i + 4; {30357#(or (< (+ main_i 151) (* 4 main_n)) (< (* 4 main_n) (+ main_i 148)) (= (select main_a (+ main_i 148)) 23))} is VALID [2019-01-31 14:40:07,940 INFO L273 TraceCheckUtils]: 18: Hoare triple {30364#(or (= 23 (select main_a (+ main_i 152))) (< (+ main_i 155) (* 4 main_n)) (< (* 4 main_n) (+ main_i 152)))} assume i <= n * 4; {30364#(or (= 23 (select main_a (+ main_i 152))) (< (+ main_i 155) (* 4 main_n)) (< (* 4 main_n) (+ main_i 152)))} is VALID [2019-01-31 14:40:07,941 INFO L273 TraceCheckUtils]: 17: Hoare triple {30371#(or (< (+ main_i 159) (* 4 main_n)) (= (select main_a (+ main_i 156)) 23) (< (* 4 main_n) (+ main_i 156)))} assume a[i] != 23;i := i + 4; {30364#(or (= 23 (select main_a (+ main_i 152))) (< (+ main_i 155) (* 4 main_n)) (< (* 4 main_n) (+ main_i 152)))} is VALID [2019-01-31 14:40:07,942 INFO L273 TraceCheckUtils]: 16: Hoare triple {30371#(or (< (+ main_i 159) (* 4 main_n)) (= (select main_a (+ main_i 156)) 23) (< (* 4 main_n) (+ main_i 156)))} assume i <= n * 4; {30371#(or (< (+ main_i 159) (* 4 main_n)) (= (select main_a (+ main_i 156)) 23) (< (* 4 main_n) (+ main_i 156)))} is VALID [2019-01-31 14:40:07,943 INFO L273 TraceCheckUtils]: 15: Hoare triple {30378#(or (< (+ main_i 163) (* 4 main_n)) (= (select main_a (+ main_i 160)) 23) (< (* 4 main_n) (+ main_i 160)))} assume a[i] != 23;i := i + 4; {30371#(or (< (+ main_i 159) (* 4 main_n)) (= (select main_a (+ main_i 156)) 23) (< (* 4 main_n) (+ main_i 156)))} is VALID [2019-01-31 14:40:07,944 INFO L273 TraceCheckUtils]: 14: Hoare triple {30378#(or (< (+ main_i 163) (* 4 main_n)) (= (select main_a (+ main_i 160)) 23) (< (* 4 main_n) (+ main_i 160)))} assume i <= n * 4; {30378#(or (< (+ main_i 163) (* 4 main_n)) (= (select main_a (+ main_i 160)) 23) (< (* 4 main_n) (+ main_i 160)))} is VALID [2019-01-31 14:40:07,945 INFO L273 TraceCheckUtils]: 13: Hoare triple {30385#(or (< (* 4 main_n) (+ main_i 164)) (< (+ main_i 167) (* 4 main_n)) (= (select main_a (+ main_i 164)) 23))} assume a[i] != 23;i := i + 4; {30378#(or (< (+ main_i 163) (* 4 main_n)) (= (select main_a (+ main_i 160)) 23) (< (* 4 main_n) (+ main_i 160)))} is VALID [2019-01-31 14:40:07,945 INFO L273 TraceCheckUtils]: 12: Hoare triple {30385#(or (< (* 4 main_n) (+ main_i 164)) (< (+ main_i 167) (* 4 main_n)) (= (select main_a (+ main_i 164)) 23))} assume i <= n * 4; {30385#(or (< (* 4 main_n) (+ main_i 164)) (< (+ main_i 167) (* 4 main_n)) (= (select main_a (+ main_i 164)) 23))} is VALID [2019-01-31 14:40:07,946 INFO L273 TraceCheckUtils]: 11: Hoare triple {30392#(or (= (select main_a (+ main_i 168)) 23) (< (* 4 main_n) (+ main_i 168)) (< (+ main_i 171) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {30385#(or (< (* 4 main_n) (+ main_i 164)) (< (+ main_i 167) (* 4 main_n)) (= (select main_a (+ main_i 164)) 23))} is VALID [2019-01-31 14:40:07,947 INFO L273 TraceCheckUtils]: 10: Hoare triple {30392#(or (= (select main_a (+ main_i 168)) 23) (< (* 4 main_n) (+ main_i 168)) (< (+ main_i 171) (* 4 main_n)))} assume i <= n * 4; {30392#(or (= (select main_a (+ main_i 168)) 23) (< (* 4 main_n) (+ main_i 168)) (< (+ main_i 171) (* 4 main_n)))} is VALID [2019-01-31 14:40:07,948 INFO L273 TraceCheckUtils]: 9: Hoare triple {30399#(or (< (* 4 main_n) (+ main_i 172)) (= (select main_a (+ main_i 172)) 23) (< (+ main_i 175) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {30392#(or (= (select main_a (+ main_i 168)) 23) (< (* 4 main_n) (+ main_i 168)) (< (+ main_i 171) (* 4 main_n)))} is VALID [2019-01-31 14:40:07,948 INFO L273 TraceCheckUtils]: 8: Hoare triple {30399#(or (< (* 4 main_n) (+ main_i 172)) (= (select main_a (+ main_i 172)) 23) (< (+ main_i 175) (* 4 main_n)))} assume i <= n * 4; {30399#(or (< (* 4 main_n) (+ main_i 172)) (= (select main_a (+ main_i 172)) 23) (< (+ main_i 175) (* 4 main_n)))} is VALID [2019-01-31 14:40:07,949 INFO L273 TraceCheckUtils]: 7: Hoare triple {30406#(or (= (select main_a (+ main_i 176)) 23) (< (+ main_i 179) (* 4 main_n)) (< (* 4 main_n) (+ main_i 176)))} assume a[i] != 23;i := i + 4; {30399#(or (< (* 4 main_n) (+ main_i 172)) (= (select main_a (+ main_i 172)) 23) (< (+ main_i 175) (* 4 main_n)))} is VALID [2019-01-31 14:40:07,950 INFO L273 TraceCheckUtils]: 6: Hoare triple {30406#(or (= (select main_a (+ main_i 176)) 23) (< (+ main_i 179) (* 4 main_n)) (< (* 4 main_n) (+ main_i 176)))} assume i <= n * 4; {30406#(or (= (select main_a (+ main_i 176)) 23) (< (+ main_i 179) (* 4 main_n)) (< (* 4 main_n) (+ main_i 176)))} is VALID [2019-01-31 14:40:07,951 INFO L273 TraceCheckUtils]: 5: Hoare triple {30413#(or (< (+ main_i 183) (* 4 main_n)) (= (select main_a (+ main_i 180)) 23) (< (* 4 main_n) (+ main_i 180)))} assume a[i] != 23;i := i + 4; {30406#(or (= (select main_a (+ main_i 176)) 23) (< (+ main_i 179) (* 4 main_n)) (< (* 4 main_n) (+ main_i 176)))} is VALID [2019-01-31 14:40:07,951 INFO L273 TraceCheckUtils]: 4: Hoare triple {30413#(or (< (+ main_i 183) (* 4 main_n)) (= (select main_a (+ main_i 180)) 23) (< (* 4 main_n) (+ main_i 180)))} assume i <= n * 4; {30413#(or (< (+ main_i 183) (* 4 main_n)) (= (select main_a (+ main_i 180)) 23) (< (* 4 main_n) (+ main_i 180)))} is VALID [2019-01-31 14:40:07,952 INFO L273 TraceCheckUtils]: 3: Hoare triple {30420#(or (= (select main_a (+ main_i 184)) 23) (< (+ main_i 187) (* 4 main_n)) (< (* 4 main_n) (+ main_i 184)))} assume a[i] != 23;i := i + 4; {30413#(or (< (+ main_i 183) (* 4 main_n)) (= (select main_a (+ main_i 180)) 23) (< (* 4 main_n) (+ main_i 180)))} is VALID [2019-01-31 14:40:07,953 INFO L273 TraceCheckUtils]: 2: Hoare triple {30420#(or (= (select main_a (+ main_i 184)) 23) (< (+ main_i 187) (* 4 main_n)) (< (* 4 main_n) (+ main_i 184)))} assume i <= n * 4; {30420#(or (= (select main_a (+ main_i 184)) 23) (< (+ main_i 187) (* 4 main_n)) (< (* 4 main_n) (+ main_i 184)))} is VALID [2019-01-31 14:40:07,954 INFO L273 TraceCheckUtils]: 1: Hoare triple {30427#(or (< (+ main_i 191) (* 4 main_n)) (< (* 4 main_n) (+ main_i 188)) (= 23 (select main_a (+ main_i 188))))} assume a[i] != 23;i := i + 4; {30420#(or (= (select main_a (+ main_i 184)) 23) (< (+ main_i 187) (* 4 main_n)) (< (* 4 main_n) (+ main_i 184)))} is VALID [2019-01-31 14:40:07,955 INFO L273 TraceCheckUtils]: 0: Hoare triple {29701#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {30427#(or (< (+ main_i 191) (* 4 main_n)) (< (* 4 main_n) (+ main_i 188)) (= 23 (select main_a (+ main_i 188))))} is VALID [2019-01-31 14:40:07,991 INFO L134 CoverageAnalysis]: Checked inductivity of 2256 backedges. 0 proven. 2256 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-31 14:40:08,010 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-01-31 14:40:08,010 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [50, 50, 50] total 149 [2019-01-31 14:40:08,010 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-01-31 14:40:08,010 INFO L78 Accepts]: Start accepts. Automaton has 101 states. Word has length 97 [2019-01-31 14:40:08,011 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-01-31 14:40:08,011 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 101 states. [2019-01-31 14:40:08,242 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 193 edges. 193 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-01-31 14:40:08,242 INFO L459 AbstractCegarLoop]: Interpolant automaton has 101 states [2019-01-31 14:40:08,243 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 101 interpolants. [2019-01-31 14:40:08,243 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2758, Invalid=19892, Unknown=0, NotChecked=0, Total=22650 [2019-01-31 14:40:08,244 INFO L87 Difference]: Start difference. First operand 98 states and 98 transitions. Second operand 101 states. [2019-01-31 14:40:20,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 14:40:20,564 INFO L93 Difference]: Finished difference Result 102 states and 102 transitions. [2019-01-31 14:40:20,564 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2019-01-31 14:40:20,564 INFO L78 Accepts]: Start accepts. Automaton has 101 states. Word has length 97 [2019-01-31 14:40:20,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-31 14:40:20,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 101 states. [2019-01-31 14:40:20,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 102 transitions. [2019-01-31 14:40:20,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 101 states. [2019-01-31 14:40:20,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 102 transitions. [2019-01-31 14:40:20,566 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 52 states and 102 transitions. [2019-01-31 14:40:20,681 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 102 edges. 102 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-01-31 14:40:20,682 INFO L225 Difference]: With dead ends: 102 [2019-01-31 14:40:20,683 INFO L226 Difference]: Without dead ends: 101 [2019-01-31 14:40:20,683 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 242 GetRequests, 92 SyntacticMatches, 1 SemanticMatches, 149 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5096 ImplicationChecksByTransitivity, 13.4s TimeCoverageRelationStatistics Valid=2758, Invalid=19892, Unknown=0, NotChecked=0, Total=22650 [2019-01-31 14:40:20,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2019-01-31 14:40:20,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 100. [2019-01-31 14:40:20,790 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-01-31 14:40:20,790 INFO L82 GeneralOperation]: Start isEquivalent. First operand 101 states. Second operand 100 states. [2019-01-31 14:40:20,791 INFO L74 IsIncluded]: Start isIncluded. First operand 101 states. Second operand 100 states. [2019-01-31 14:40:20,791 INFO L87 Difference]: Start difference. First operand 101 states. Second operand 100 states. [2019-01-31 14:40:20,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 14:40:20,793 INFO L93 Difference]: Finished difference Result 101 states and 101 transitions. [2019-01-31 14:40:20,793 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 101 transitions. [2019-01-31 14:40:20,794 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-31 14:40:20,794 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-01-31 14:40:20,794 INFO L74 IsIncluded]: Start isIncluded. First operand 100 states. Second operand 101 states. [2019-01-31 14:40:20,794 INFO L87 Difference]: Start difference. First operand 100 states. Second operand 101 states. [2019-01-31 14:40:20,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 14:40:20,795 INFO L93 Difference]: Finished difference Result 101 states and 101 transitions. [2019-01-31 14:40:20,795 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 101 transitions. [2019-01-31 14:40:20,796 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-31 14:40:20,796 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-01-31 14:40:20,796 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-01-31 14:40:20,796 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-01-31 14:40:20,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 100 states. [2019-01-31 14:40:20,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 100 transitions. [2019-01-31 14:40:20,797 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 100 transitions. Word has length 97 [2019-01-31 14:40:20,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-31 14:40:20,797 INFO L480 AbstractCegarLoop]: Abstraction has 100 states and 100 transitions. [2019-01-31 14:40:20,798 INFO L481 AbstractCegarLoop]: Interpolant automaton has 101 states. [2019-01-31 14:40:20,798 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 100 transitions. [2019-01-31 14:40:20,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2019-01-31 14:40:20,798 INFO L394 BasicCegarLoop]: Found error trace [2019-01-31 14:40:20,798 INFO L402 BasicCegarLoop]: trace histogram [49, 48, 1, 1] [2019-01-31 14:40:20,798 INFO L423 AbstractCegarLoop]: === Iteration 49 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-01-31 14:40:20,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-31 14:40:20,799 INFO L82 PathProgramCache]: Analyzing trace with hash -1442099904, now seen corresponding path program 48 times [2019-01-31 14:40:20,799 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-01-31 14:40:20,799 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-31 14:40:20,800 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-01-31 14:40:20,800 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-31 14:40:20,800 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-01-31 14:40:20,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-31 14:40:23,694 INFO L273 TraceCheckUtils]: 0: Hoare triple {30933#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {30935#(and (or (<= main_n 48) (<= main_i 0)) (= 23 (select main_a (* 4 main_n))) (or (<= 0 main_i) (< 48 main_n)))} is VALID [2019-01-31 14:40:23,695 INFO L273 TraceCheckUtils]: 1: Hoare triple {30935#(and (or (<= main_n 48) (<= main_i 0)) (= 23 (select main_a (* 4 main_n))) (or (<= 0 main_i) (< 48 main_n)))} assume a[i] != 23;i := i + 4; {30936#(and (or (< 48 main_n) (<= 4 main_i)) (or (<= main_n 48) (<= main_i 4)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:23,696 INFO L273 TraceCheckUtils]: 2: Hoare triple {30936#(and (or (< 48 main_n) (<= 4 main_i)) (or (<= main_n 48) (<= main_i 4)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {30936#(and (or (< 48 main_n) (<= 4 main_i)) (or (<= main_n 48) (<= main_i 4)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:23,697 INFO L273 TraceCheckUtils]: 3: Hoare triple {30936#(and (or (< 48 main_n) (<= 4 main_i)) (or (<= main_n 48) (<= main_i 4)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {30937#(and (or (<= main_n 48) (<= main_i 8)) (or (<= 8 main_i) (< 48 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:23,697 INFO L273 TraceCheckUtils]: 4: Hoare triple {30937#(and (or (<= main_n 48) (<= main_i 8)) (or (<= 8 main_i) (< 48 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {30937#(and (or (<= main_n 48) (<= main_i 8)) (or (<= 8 main_i) (< 48 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:23,698 INFO L273 TraceCheckUtils]: 5: Hoare triple {30937#(and (or (<= main_n 48) (<= main_i 8)) (or (<= 8 main_i) (< 48 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {30938#(and (= 23 (select main_a (* 4 main_n))) (or (<= main_n 48) (<= main_i 12)) (or (< 48 main_n) (<= 12 main_i)))} is VALID [2019-01-31 14:40:23,699 INFO L273 TraceCheckUtils]: 6: Hoare triple {30938#(and (= 23 (select main_a (* 4 main_n))) (or (<= main_n 48) (<= main_i 12)) (or (< 48 main_n) (<= 12 main_i)))} assume i <= n * 4; {30938#(and (= 23 (select main_a (* 4 main_n))) (or (<= main_n 48) (<= main_i 12)) (or (< 48 main_n) (<= 12 main_i)))} is VALID [2019-01-31 14:40:23,700 INFO L273 TraceCheckUtils]: 7: Hoare triple {30938#(and (= 23 (select main_a (* 4 main_n))) (or (<= main_n 48) (<= main_i 12)) (or (< 48 main_n) (<= 12 main_i)))} assume a[i] != 23;i := i + 4; {30939#(and (or (<= main_n 48) (<= main_i 16)) (or (<= 16 main_i) (< 48 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:23,701 INFO L273 TraceCheckUtils]: 8: Hoare triple {30939#(and (or (<= main_n 48) (<= main_i 16)) (or (<= 16 main_i) (< 48 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {30939#(and (or (<= main_n 48) (<= main_i 16)) (or (<= 16 main_i) (< 48 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:23,702 INFO L273 TraceCheckUtils]: 9: Hoare triple {30939#(and (or (<= main_n 48) (<= main_i 16)) (or (<= 16 main_i) (< 48 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {30940#(and (or (< 48 main_n) (<= 20 main_i)) (or (<= main_n 48) (<= main_i 20)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:23,703 INFO L273 TraceCheckUtils]: 10: Hoare triple {30940#(and (or (< 48 main_n) (<= 20 main_i)) (or (<= main_n 48) (<= main_i 20)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {30940#(and (or (< 48 main_n) (<= 20 main_i)) (or (<= main_n 48) (<= main_i 20)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:23,704 INFO L273 TraceCheckUtils]: 11: Hoare triple {30940#(and (or (< 48 main_n) (<= 20 main_i)) (or (<= main_n 48) (<= main_i 20)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {30941#(and (or (<= 24 main_i) (< 48 main_n)) (or (<= main_n 48) (<= main_i 24)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:23,704 INFO L273 TraceCheckUtils]: 12: Hoare triple {30941#(and (or (<= 24 main_i) (< 48 main_n)) (or (<= main_n 48) (<= main_i 24)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {30941#(and (or (<= 24 main_i) (< 48 main_n)) (or (<= main_n 48) (<= main_i 24)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:23,706 INFO L273 TraceCheckUtils]: 13: Hoare triple {30941#(and (or (<= 24 main_i) (< 48 main_n)) (or (<= main_n 48) (<= main_i 24)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {30942#(and (or (<= main_n 48) (<= main_i 28)) (or (<= 28 main_i) (< 48 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:23,706 INFO L273 TraceCheckUtils]: 14: Hoare triple {30942#(and (or (<= main_n 48) (<= main_i 28)) (or (<= 28 main_i) (< 48 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {30942#(and (or (<= main_n 48) (<= main_i 28)) (or (<= 28 main_i) (< 48 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:23,707 INFO L273 TraceCheckUtils]: 15: Hoare triple {30942#(and (or (<= main_n 48) (<= main_i 28)) (or (<= 28 main_i) (< 48 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {30943#(and (or (<= main_i 32) (<= main_n 48)) (or (<= 32 main_i) (< 48 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:23,708 INFO L273 TraceCheckUtils]: 16: Hoare triple {30943#(and (or (<= main_i 32) (<= main_n 48)) (or (<= 32 main_i) (< 48 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {30943#(and (or (<= main_i 32) (<= main_n 48)) (or (<= 32 main_i) (< 48 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:23,709 INFO L273 TraceCheckUtils]: 17: Hoare triple {30943#(and (or (<= main_i 32) (<= main_n 48)) (or (<= 32 main_i) (< 48 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {30944#(and (or (< 48 main_n) (<= 36 main_i)) (or (<= main_i 36) (<= main_n 48)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:23,710 INFO L273 TraceCheckUtils]: 18: Hoare triple {30944#(and (or (< 48 main_n) (<= 36 main_i)) (or (<= main_i 36) (<= main_n 48)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {30944#(and (or (< 48 main_n) (<= 36 main_i)) (or (<= main_i 36) (<= main_n 48)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:23,711 INFO L273 TraceCheckUtils]: 19: Hoare triple {30944#(and (or (< 48 main_n) (<= 36 main_i)) (or (<= main_i 36) (<= main_n 48)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {30945#(and (or (<= 40 main_i) (< 48 main_n)) (or (<= main_n 48) (<= main_i 40)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:23,712 INFO L273 TraceCheckUtils]: 20: Hoare triple {30945#(and (or (<= 40 main_i) (< 48 main_n)) (or (<= main_n 48) (<= main_i 40)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {30945#(and (or (<= 40 main_i) (< 48 main_n)) (or (<= main_n 48) (<= main_i 40)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:23,713 INFO L273 TraceCheckUtils]: 21: Hoare triple {30945#(and (or (<= 40 main_i) (< 48 main_n)) (or (<= main_n 48) (<= main_i 40)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {30946#(and (or (<= main_n 48) (<= main_i 44)) (= 23 (select main_a (* 4 main_n))) (or (<= 44 main_i) (< 48 main_n)))} is VALID [2019-01-31 14:40:23,714 INFO L273 TraceCheckUtils]: 22: Hoare triple {30946#(and (or (<= main_n 48) (<= main_i 44)) (= 23 (select main_a (* 4 main_n))) (or (<= 44 main_i) (< 48 main_n)))} assume i <= n * 4; {30946#(and (or (<= main_n 48) (<= main_i 44)) (= 23 (select main_a (* 4 main_n))) (or (<= 44 main_i) (< 48 main_n)))} is VALID [2019-01-31 14:40:23,715 INFO L273 TraceCheckUtils]: 23: Hoare triple {30946#(and (or (<= main_n 48) (<= main_i 44)) (= 23 (select main_a (* 4 main_n))) (or (<= 44 main_i) (< 48 main_n)))} assume a[i] != 23;i := i + 4; {30947#(and (or (<= main_n 48) (<= main_i 48)) (or (<= 48 main_i) (< 48 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:23,716 INFO L273 TraceCheckUtils]: 24: Hoare triple {30947#(and (or (<= main_n 48) (<= main_i 48)) (or (<= 48 main_i) (< 48 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {30947#(and (or (<= main_n 48) (<= main_i 48)) (or (<= 48 main_i) (< 48 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:23,717 INFO L273 TraceCheckUtils]: 25: Hoare triple {30947#(and (or (<= main_n 48) (<= main_i 48)) (or (<= 48 main_i) (< 48 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {30948#(and (or (<= main_n 48) (<= main_i 52)) (= 23 (select main_a (* 4 main_n))) (or (< 48 main_n) (<= 52 main_i)))} is VALID [2019-01-31 14:40:23,717 INFO L273 TraceCheckUtils]: 26: Hoare triple {30948#(and (or (<= main_n 48) (<= main_i 52)) (= 23 (select main_a (* 4 main_n))) (or (< 48 main_n) (<= 52 main_i)))} assume i <= n * 4; {30948#(and (or (<= main_n 48) (<= main_i 52)) (= 23 (select main_a (* 4 main_n))) (or (< 48 main_n) (<= 52 main_i)))} is VALID [2019-01-31 14:40:23,719 INFO L273 TraceCheckUtils]: 27: Hoare triple {30948#(and (or (<= main_n 48) (<= main_i 52)) (= 23 (select main_a (* 4 main_n))) (or (< 48 main_n) (<= 52 main_i)))} assume a[i] != 23;i := i + 4; {30949#(and (or (<= main_n 48) (<= main_i 56)) (or (<= 56 main_i) (< 48 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:23,719 INFO L273 TraceCheckUtils]: 28: Hoare triple {30949#(and (or (<= main_n 48) (<= main_i 56)) (or (<= 56 main_i) (< 48 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {30949#(and (or (<= main_n 48) (<= main_i 56)) (or (<= 56 main_i) (< 48 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:23,720 INFO L273 TraceCheckUtils]: 29: Hoare triple {30949#(and (or (<= main_n 48) (<= main_i 56)) (or (<= 56 main_i) (< 48 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {30950#(and (or (<= 60 main_i) (< 48 main_n)) (or (<= main_n 48) (<= main_i 60)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:23,721 INFO L273 TraceCheckUtils]: 30: Hoare triple {30950#(and (or (<= 60 main_i) (< 48 main_n)) (or (<= main_n 48) (<= main_i 60)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {30950#(and (or (<= 60 main_i) (< 48 main_n)) (or (<= main_n 48) (<= main_i 60)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:23,722 INFO L273 TraceCheckUtils]: 31: Hoare triple {30950#(and (or (<= 60 main_i) (< 48 main_n)) (or (<= main_n 48) (<= main_i 60)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {30951#(and (or (<= main_n 48) (<= main_i 64)) (or (<= 64 main_i) (< 48 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:23,723 INFO L273 TraceCheckUtils]: 32: Hoare triple {30951#(and (or (<= main_n 48) (<= main_i 64)) (or (<= 64 main_i) (< 48 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {30951#(and (or (<= main_n 48) (<= main_i 64)) (or (<= 64 main_i) (< 48 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:23,724 INFO L273 TraceCheckUtils]: 33: Hoare triple {30951#(and (or (<= main_n 48) (<= main_i 64)) (or (<= 64 main_i) (< 48 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {30952#(and (or (<= main_n 48) (<= main_i 68)) (or (< 48 main_n) (<= 68 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:23,725 INFO L273 TraceCheckUtils]: 34: Hoare triple {30952#(and (or (<= main_n 48) (<= main_i 68)) (or (< 48 main_n) (<= 68 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {30952#(and (or (<= main_n 48) (<= main_i 68)) (or (< 48 main_n) (<= 68 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:23,726 INFO L273 TraceCheckUtils]: 35: Hoare triple {30952#(and (or (<= main_n 48) (<= main_i 68)) (or (< 48 main_n) (<= 68 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {30953#(and (or (<= main_n 48) (<= main_i 72)) (or (<= 72 main_i) (< 48 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:23,727 INFO L273 TraceCheckUtils]: 36: Hoare triple {30953#(and (or (<= main_n 48) (<= main_i 72)) (or (<= 72 main_i) (< 48 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {30953#(and (or (<= main_n 48) (<= main_i 72)) (or (<= 72 main_i) (< 48 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:23,728 INFO L273 TraceCheckUtils]: 37: Hoare triple {30953#(and (or (<= main_n 48) (<= main_i 72)) (or (<= 72 main_i) (< 48 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {30954#(and (or (<= main_i 76) (<= main_n 48)) (or (<= 76 main_i) (< 48 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:23,729 INFO L273 TraceCheckUtils]: 38: Hoare triple {30954#(and (or (<= main_i 76) (<= main_n 48)) (or (<= 76 main_i) (< 48 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {30954#(and (or (<= main_i 76) (<= main_n 48)) (or (<= 76 main_i) (< 48 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:23,730 INFO L273 TraceCheckUtils]: 39: Hoare triple {30954#(and (or (<= main_i 76) (<= main_n 48)) (or (<= 76 main_i) (< 48 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {30955#(and (or (<= main_n 48) (<= main_i 80)) (= 23 (select main_a (* 4 main_n))) (or (<= 80 main_i) (< 48 main_n)))} is VALID [2019-01-31 14:40:23,731 INFO L273 TraceCheckUtils]: 40: Hoare triple {30955#(and (or (<= main_n 48) (<= main_i 80)) (= 23 (select main_a (* 4 main_n))) (or (<= 80 main_i) (< 48 main_n)))} assume i <= n * 4; {30955#(and (or (<= main_n 48) (<= main_i 80)) (= 23 (select main_a (* 4 main_n))) (or (<= 80 main_i) (< 48 main_n)))} is VALID [2019-01-31 14:40:23,732 INFO L273 TraceCheckUtils]: 41: Hoare triple {30955#(and (or (<= main_n 48) (<= main_i 80)) (= 23 (select main_a (* 4 main_n))) (or (<= 80 main_i) (< 48 main_n)))} assume a[i] != 23;i := i + 4; {30956#(and (or (< 48 main_n) (<= 84 main_i)) (or (<= main_n 48) (<= main_i 84)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:23,732 INFO L273 TraceCheckUtils]: 42: Hoare triple {30956#(and (or (< 48 main_n) (<= 84 main_i)) (or (<= main_n 48) (<= main_i 84)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {30956#(and (or (< 48 main_n) (<= 84 main_i)) (or (<= main_n 48) (<= main_i 84)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:23,734 INFO L273 TraceCheckUtils]: 43: Hoare triple {30956#(and (or (< 48 main_n) (<= 84 main_i)) (or (<= main_n 48) (<= main_i 84)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {30957#(and (or (< 48 main_n) (<= 88 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 88) (<= main_n 48)))} is VALID [2019-01-31 14:40:23,734 INFO L273 TraceCheckUtils]: 44: Hoare triple {30957#(and (or (< 48 main_n) (<= 88 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 88) (<= main_n 48)))} assume i <= n * 4; {30957#(and (or (< 48 main_n) (<= 88 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 88) (<= main_n 48)))} is VALID [2019-01-31 14:40:23,735 INFO L273 TraceCheckUtils]: 45: Hoare triple {30957#(and (or (< 48 main_n) (<= 88 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 88) (<= main_n 48)))} assume a[i] != 23;i := i + 4; {30958#(and (or (< 48 main_n) (<= 92 main_i)) (or (<= main_i 92) (<= main_n 48)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:23,736 INFO L273 TraceCheckUtils]: 46: Hoare triple {30958#(and (or (< 48 main_n) (<= 92 main_i)) (or (<= main_i 92) (<= main_n 48)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {30958#(and (or (< 48 main_n) (<= 92 main_i)) (or (<= main_i 92) (<= main_n 48)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:23,737 INFO L273 TraceCheckUtils]: 47: Hoare triple {30958#(and (or (< 48 main_n) (<= 92 main_i)) (or (<= main_i 92) (<= main_n 48)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {30959#(and (or (<= main_i 96) (<= main_n 48)) (or (<= 96 main_i) (< 48 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:23,738 INFO L273 TraceCheckUtils]: 48: Hoare triple {30959#(and (or (<= main_i 96) (<= main_n 48)) (or (<= 96 main_i) (< 48 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {30959#(and (or (<= main_i 96) (<= main_n 48)) (or (<= 96 main_i) (< 48 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:23,739 INFO L273 TraceCheckUtils]: 49: Hoare triple {30959#(and (or (<= main_i 96) (<= main_n 48)) (or (<= 96 main_i) (< 48 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {30960#(and (or (<= main_n 48) (<= main_i 100)) (or (<= 100 main_i) (< 48 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:23,740 INFO L273 TraceCheckUtils]: 50: Hoare triple {30960#(and (or (<= main_n 48) (<= main_i 100)) (or (<= 100 main_i) (< 48 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {30960#(and (or (<= main_n 48) (<= main_i 100)) (or (<= 100 main_i) (< 48 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:23,741 INFO L273 TraceCheckUtils]: 51: Hoare triple {30960#(and (or (<= main_n 48) (<= main_i 100)) (or (<= 100 main_i) (< 48 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {30961#(and (or (<= 104 main_i) (< 48 main_n)) (or (<= main_i 104) (<= main_n 48)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:23,742 INFO L273 TraceCheckUtils]: 52: Hoare triple {30961#(and (or (<= 104 main_i) (< 48 main_n)) (or (<= main_i 104) (<= main_n 48)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {30961#(and (or (<= 104 main_i) (< 48 main_n)) (or (<= main_i 104) (<= main_n 48)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:23,743 INFO L273 TraceCheckUtils]: 53: Hoare triple {30961#(and (or (<= 104 main_i) (< 48 main_n)) (or (<= main_i 104) (<= main_n 48)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {30962#(and (or (<= 108 main_i) (< 48 main_n)) (or (<= main_n 48) (<= main_i 108)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:23,744 INFO L273 TraceCheckUtils]: 54: Hoare triple {30962#(and (or (<= 108 main_i) (< 48 main_n)) (or (<= main_n 48) (<= main_i 108)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {30962#(and (or (<= 108 main_i) (< 48 main_n)) (or (<= main_n 48) (<= main_i 108)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:23,745 INFO L273 TraceCheckUtils]: 55: Hoare triple {30962#(and (or (<= 108 main_i) (< 48 main_n)) (or (<= main_n 48) (<= main_i 108)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {30963#(and (or (<= main_n 48) (<= main_i 112)) (= 23 (select main_a (* 4 main_n))) (or (< 48 main_n) (<= 112 main_i)))} is VALID [2019-01-31 14:40:23,745 INFO L273 TraceCheckUtils]: 56: Hoare triple {30963#(and (or (<= main_n 48) (<= main_i 112)) (= 23 (select main_a (* 4 main_n))) (or (< 48 main_n) (<= 112 main_i)))} assume i <= n * 4; {30963#(and (or (<= main_n 48) (<= main_i 112)) (= 23 (select main_a (* 4 main_n))) (or (< 48 main_n) (<= 112 main_i)))} is VALID [2019-01-31 14:40:23,747 INFO L273 TraceCheckUtils]: 57: Hoare triple {30963#(and (or (<= main_n 48) (<= main_i 112)) (= 23 (select main_a (* 4 main_n))) (or (< 48 main_n) (<= 112 main_i)))} assume a[i] != 23;i := i + 4; {30964#(and (or (<= 116 main_i) (< 48 main_n)) (or (<= main_n 48) (<= main_i 116)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:23,747 INFO L273 TraceCheckUtils]: 58: Hoare triple {30964#(and (or (<= 116 main_i) (< 48 main_n)) (or (<= main_n 48) (<= main_i 116)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {30964#(and (or (<= 116 main_i) (< 48 main_n)) (or (<= main_n 48) (<= main_i 116)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:23,748 INFO L273 TraceCheckUtils]: 59: Hoare triple {30964#(and (or (<= 116 main_i) (< 48 main_n)) (or (<= main_n 48) (<= main_i 116)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {30965#(and (or (<= 120 main_i) (< 48 main_n)) (or (<= main_n 48) (<= main_i 120)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:23,749 INFO L273 TraceCheckUtils]: 60: Hoare triple {30965#(and (or (<= 120 main_i) (< 48 main_n)) (or (<= main_n 48) (<= main_i 120)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {30965#(and (or (<= 120 main_i) (< 48 main_n)) (or (<= main_n 48) (<= main_i 120)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:23,750 INFO L273 TraceCheckUtils]: 61: Hoare triple {30965#(and (or (<= 120 main_i) (< 48 main_n)) (or (<= main_n 48) (<= main_i 120)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {30966#(and (or (<= main_n 48) (<= main_i 124)) (or (<= 124 main_i) (< 48 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:23,751 INFO L273 TraceCheckUtils]: 62: Hoare triple {30966#(and (or (<= main_n 48) (<= main_i 124)) (or (<= 124 main_i) (< 48 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {30966#(and (or (<= main_n 48) (<= main_i 124)) (or (<= 124 main_i) (< 48 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:23,752 INFO L273 TraceCheckUtils]: 63: Hoare triple {30966#(and (or (<= main_n 48) (<= main_i 124)) (or (<= 124 main_i) (< 48 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {30967#(and (or (< 48 main_n) (<= 128 main_i)) (or (<= main_n 48) (<= main_i 128)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:23,753 INFO L273 TraceCheckUtils]: 64: Hoare triple {30967#(and (or (< 48 main_n) (<= 128 main_i)) (or (<= main_n 48) (<= main_i 128)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {30967#(and (or (< 48 main_n) (<= 128 main_i)) (or (<= main_n 48) (<= main_i 128)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:23,754 INFO L273 TraceCheckUtils]: 65: Hoare triple {30967#(and (or (< 48 main_n) (<= 128 main_i)) (or (<= main_n 48) (<= main_i 128)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {30968#(and (or (<= main_n 48) (<= main_i 132)) (or (<= 132 main_i) (< 48 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:23,755 INFO L273 TraceCheckUtils]: 66: Hoare triple {30968#(and (or (<= main_n 48) (<= main_i 132)) (or (<= 132 main_i) (< 48 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {30968#(and (or (<= main_n 48) (<= main_i 132)) (or (<= 132 main_i) (< 48 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:23,756 INFO L273 TraceCheckUtils]: 67: Hoare triple {30968#(and (or (<= main_n 48) (<= main_i 132)) (or (<= 132 main_i) (< 48 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {30969#(and (or (<= main_i 136) (<= main_n 48)) (or (<= 136 main_i) (< 48 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:23,757 INFO L273 TraceCheckUtils]: 68: Hoare triple {30969#(and (or (<= main_i 136) (<= main_n 48)) (or (<= 136 main_i) (< 48 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {30969#(and (or (<= main_i 136) (<= main_n 48)) (or (<= 136 main_i) (< 48 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:23,758 INFO L273 TraceCheckUtils]: 69: Hoare triple {30969#(and (or (<= main_i 136) (<= main_n 48)) (or (<= 136 main_i) (< 48 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {30970#(and (or (< 48 main_n) (<= 140 main_i)) (or (<= main_n 48) (<= main_i 140)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:23,759 INFO L273 TraceCheckUtils]: 70: Hoare triple {30970#(and (or (< 48 main_n) (<= 140 main_i)) (or (<= main_n 48) (<= main_i 140)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {30970#(and (or (< 48 main_n) (<= 140 main_i)) (or (<= main_n 48) (<= main_i 140)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:23,760 INFO L273 TraceCheckUtils]: 71: Hoare triple {30970#(and (or (< 48 main_n) (<= 140 main_i)) (or (<= main_n 48) (<= main_i 140)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {30971#(and (or (<= 144 main_i) (< 48 main_n)) (or (<= main_n 48) (<= main_i 144)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:23,761 INFO L273 TraceCheckUtils]: 72: Hoare triple {30971#(and (or (<= 144 main_i) (< 48 main_n)) (or (<= main_n 48) (<= main_i 144)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {30971#(and (or (<= 144 main_i) (< 48 main_n)) (or (<= main_n 48) (<= main_i 144)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:23,762 INFO L273 TraceCheckUtils]: 73: Hoare triple {30971#(and (or (<= 144 main_i) (< 48 main_n)) (or (<= main_n 48) (<= main_i 144)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {30972#(and (or (<= main_n 48) (<= main_i 148)) (= 23 (select main_a (* 4 main_n))) (or (< 48 main_n) (<= 148 main_i)))} is VALID [2019-01-31 14:40:23,762 INFO L273 TraceCheckUtils]: 74: Hoare triple {30972#(and (or (<= main_n 48) (<= main_i 148)) (= 23 (select main_a (* 4 main_n))) (or (< 48 main_n) (<= 148 main_i)))} assume i <= n * 4; {30972#(and (or (<= main_n 48) (<= main_i 148)) (= 23 (select main_a (* 4 main_n))) (or (< 48 main_n) (<= 148 main_i)))} is VALID [2019-01-31 14:40:23,763 INFO L273 TraceCheckUtils]: 75: Hoare triple {30972#(and (or (<= main_n 48) (<= main_i 148)) (= 23 (select main_a (* 4 main_n))) (or (< 48 main_n) (<= 148 main_i)))} assume a[i] != 23;i := i + 4; {30973#(and (or (<= main_n 48) (<= main_i 152)) (or (<= 152 main_i) (< 48 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:23,764 INFO L273 TraceCheckUtils]: 76: Hoare triple {30973#(and (or (<= main_n 48) (<= main_i 152)) (or (<= 152 main_i) (< 48 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {30973#(and (or (<= main_n 48) (<= main_i 152)) (or (<= 152 main_i) (< 48 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:23,765 INFO L273 TraceCheckUtils]: 77: Hoare triple {30973#(and (or (<= main_n 48) (<= main_i 152)) (or (<= 152 main_i) (< 48 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {30974#(and (or (<= main_n 48) (<= main_i 156)) (= 23 (select main_a (* 4 main_n))) (or (<= 156 main_i) (< 48 main_n)))} is VALID [2019-01-31 14:40:23,766 INFO L273 TraceCheckUtils]: 78: Hoare triple {30974#(and (or (<= main_n 48) (<= main_i 156)) (= 23 (select main_a (* 4 main_n))) (or (<= 156 main_i) (< 48 main_n)))} assume i <= n * 4; {30974#(and (or (<= main_n 48) (<= main_i 156)) (= 23 (select main_a (* 4 main_n))) (or (<= 156 main_i) (< 48 main_n)))} is VALID [2019-01-31 14:40:23,767 INFO L273 TraceCheckUtils]: 79: Hoare triple {30974#(and (or (<= main_n 48) (<= main_i 156)) (= 23 (select main_a (* 4 main_n))) (or (<= 156 main_i) (< 48 main_n)))} assume a[i] != 23;i := i + 4; {30975#(and (or (<= main_n 48) (<= main_i 160)) (or (<= 160 main_i) (< 48 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:23,768 INFO L273 TraceCheckUtils]: 80: Hoare triple {30975#(and (or (<= main_n 48) (<= main_i 160)) (or (<= 160 main_i) (< 48 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {30975#(and (or (<= main_n 48) (<= main_i 160)) (or (<= 160 main_i) (< 48 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:23,769 INFO L273 TraceCheckUtils]: 81: Hoare triple {30975#(and (or (<= main_n 48) (<= main_i 160)) (or (<= 160 main_i) (< 48 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {30976#(and (or (<= main_n 48) (<= main_i 164)) (= 23 (select main_a (* 4 main_n))) (or (<= 164 main_i) (< 48 main_n)))} is VALID [2019-01-31 14:40:23,770 INFO L273 TraceCheckUtils]: 82: Hoare triple {30976#(and (or (<= main_n 48) (<= main_i 164)) (= 23 (select main_a (* 4 main_n))) (or (<= 164 main_i) (< 48 main_n)))} assume i <= n * 4; {30976#(and (or (<= main_n 48) (<= main_i 164)) (= 23 (select main_a (* 4 main_n))) (or (<= 164 main_i) (< 48 main_n)))} is VALID [2019-01-31 14:40:23,771 INFO L273 TraceCheckUtils]: 83: Hoare triple {30976#(and (or (<= main_n 48) (<= main_i 164)) (= 23 (select main_a (* 4 main_n))) (or (<= 164 main_i) (< 48 main_n)))} assume a[i] != 23;i := i + 4; {30977#(and (= 23 (select main_a (* 4 main_n))) (or (<= 168 main_i) (< 48 main_n)) (or (<= main_n 48) (<= main_i 168)))} is VALID [2019-01-31 14:40:23,772 INFO L273 TraceCheckUtils]: 84: Hoare triple {30977#(and (= 23 (select main_a (* 4 main_n))) (or (<= 168 main_i) (< 48 main_n)) (or (<= main_n 48) (<= main_i 168)))} assume i <= n * 4; {30977#(and (= 23 (select main_a (* 4 main_n))) (or (<= 168 main_i) (< 48 main_n)) (or (<= main_n 48) (<= main_i 168)))} is VALID [2019-01-31 14:40:23,773 INFO L273 TraceCheckUtils]: 85: Hoare triple {30977#(and (= 23 (select main_a (* 4 main_n))) (or (<= 168 main_i) (< 48 main_n)) (or (<= main_n 48) (<= main_i 168)))} assume a[i] != 23;i := i + 4; {30978#(and (or (<= 172 main_i) (< 48 main_n)) (or (<= main_n 48) (<= main_i 172)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:23,773 INFO L273 TraceCheckUtils]: 86: Hoare triple {30978#(and (or (<= 172 main_i) (< 48 main_n)) (or (<= main_n 48) (<= main_i 172)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {30978#(and (or (<= 172 main_i) (< 48 main_n)) (or (<= main_n 48) (<= main_i 172)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:23,775 INFO L273 TraceCheckUtils]: 87: Hoare triple {30978#(and (or (<= 172 main_i) (< 48 main_n)) (or (<= main_n 48) (<= main_i 172)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {30979#(and (or (<= 176 main_i) (< 48 main_n)) (or (<= main_n 48) (<= main_i 176)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:23,775 INFO L273 TraceCheckUtils]: 88: Hoare triple {30979#(and (or (<= 176 main_i) (< 48 main_n)) (or (<= main_n 48) (<= main_i 176)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {30979#(and (or (<= 176 main_i) (< 48 main_n)) (or (<= main_n 48) (<= main_i 176)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:23,776 INFO L273 TraceCheckUtils]: 89: Hoare triple {30979#(and (or (<= 176 main_i) (< 48 main_n)) (or (<= main_n 48) (<= main_i 176)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {30980#(and (or (<= main_n 48) (<= main_i 180)) (or (< 48 main_n) (<= 180 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:23,777 INFO L273 TraceCheckUtils]: 90: Hoare triple {30980#(and (or (<= main_n 48) (<= main_i 180)) (or (< 48 main_n) (<= 180 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {30980#(and (or (<= main_n 48) (<= main_i 180)) (or (< 48 main_n) (<= 180 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:23,778 INFO L273 TraceCheckUtils]: 91: Hoare triple {30980#(and (or (<= main_n 48) (<= main_i 180)) (or (< 48 main_n) (<= 180 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {30981#(and (or (<= main_n 48) (<= main_i 184)) (or (< 48 main_n) (<= 184 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:23,779 INFO L273 TraceCheckUtils]: 92: Hoare triple {30981#(and (or (<= main_n 48) (<= main_i 184)) (or (< 48 main_n) (<= 184 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {30981#(and (or (<= main_n 48) (<= main_i 184)) (or (< 48 main_n) (<= 184 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:23,780 INFO L273 TraceCheckUtils]: 93: Hoare triple {30981#(and (or (<= main_n 48) (<= main_i 184)) (or (< 48 main_n) (<= 184 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {30982#(and (or (< 48 main_n) (<= 188 main_i)) (or (<= main_i 188) (<= main_n 48)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:23,781 INFO L273 TraceCheckUtils]: 94: Hoare triple {30982#(and (or (< 48 main_n) (<= 188 main_i)) (or (<= main_i 188) (<= main_n 48)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {30982#(and (or (< 48 main_n) (<= 188 main_i)) (or (<= main_i 188) (<= main_n 48)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:23,782 INFO L273 TraceCheckUtils]: 95: Hoare triple {30982#(and (or (< 48 main_n) (<= 188 main_i)) (or (<= main_i 188) (<= main_n 48)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {30983#(and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (or (= (* 4 main_n) main_i) (and (or (<= main_n 48) (<= main_i 192)) (or (<= (* 4 main_n) main_i) (< 48 main_n)))))} is VALID [2019-01-31 14:40:23,783 INFO L273 TraceCheckUtils]: 96: Hoare triple {30983#(and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (or (= (* 4 main_n) main_i) (and (or (<= main_n 48) (<= main_i 192)) (or (<= (* 4 main_n) main_i) (< 48 main_n)))))} assume i <= n * 4; {30984#(and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (or (= (* 4 main_n) main_i) (and (<= main_i 192) (< 48 main_n))))} is VALID [2019-01-31 14:40:23,784 INFO L273 TraceCheckUtils]: 97: Hoare triple {30984#(and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (or (= (* 4 main_n) main_i) (and (<= main_i 192) (< 48 main_n))))} assume a[i] != 23;i := i + 4; {30985#(and (< 48 main_n) (<= main_i 196))} is VALID [2019-01-31 14:40:23,785 INFO L273 TraceCheckUtils]: 98: Hoare triple {30985#(and (< 48 main_n) (<= main_i 196))} assume !(i <= n * 4); {30934#false} is VALID [2019-01-31 14:40:23,830 INFO L134 CoverageAnalysis]: Checked inductivity of 2352 backedges. 0 proven. 2352 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-31 14:40:23,830 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-31 14:40:23,830 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-01-31 14:40:23,830 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-01-31 14:40:23,830 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-01-31 14:40:23,830 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-31 14:40:23,830 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 14:40:23,840 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2019-01-31 14:40:23,840 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder TERMS_WITH_SMALL_CONSTANTS_FIRST (IT: FPandBP) [2019-01-31 14:40:23,869 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-01-31 14:40:23,869 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-01-31 14:40:23,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-31 14:40:23,885 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-31 14:40:23,898 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 14:40:23,902 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-01-31 14:40:23,910 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-31 14:40:23,910 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2019-01-31 14:40:23,912 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-01-31 14:40:23,912 WARN L398 uantifierElimination]: Input elimination task: ∃ [v_main_a_52]. (and (= main_a (store v_main_a_52 (* 4 main_n) 23)) (= main_i 0)) [2019-01-31 14:40:23,912 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2019-01-31 14:40:27,889 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2019-01-31 14:40:27,891 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-01-31 14:40:27,905 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-31 14:40:27,905 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2019-01-31 14:40:27,907 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-01-31 14:40:27,907 WARN L398 uantifierElimination]: Input elimination task: ∃ [main_a]. (let ((.cse0 (* 4 main_n))) (and (<= 192 .cse0) (= 23 (select main_a .cse0)) (not (= 23 (select main_a 192))) (<= main_i 196))) [2019-01-31 14:40:27,907 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (let ((.cse0 (* 4 main_n))) (and (not (= 192 .cse0)) (<= 192 .cse0) (<= main_i 196))) [2019-01-31 14:40:27,967 INFO L273 TraceCheckUtils]: 0: Hoare triple {30933#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {30989#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:27,967 INFO L273 TraceCheckUtils]: 1: Hoare triple {30989#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {30993#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2019-01-31 14:40:27,968 INFO L273 TraceCheckUtils]: 2: Hoare triple {30993#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume i <= n * 4; {30993#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2019-01-31 14:40:27,968 INFO L273 TraceCheckUtils]: 3: Hoare triple {30993#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume a[i] != 23;i := i + 4; {31000#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:27,969 INFO L273 TraceCheckUtils]: 4: Hoare triple {31000#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {31000#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:27,969 INFO L273 TraceCheckUtils]: 5: Hoare triple {31000#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {31007#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2019-01-31 14:40:27,970 INFO L273 TraceCheckUtils]: 6: Hoare triple {31007#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume i <= n * 4; {31007#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2019-01-31 14:40:27,971 INFO L273 TraceCheckUtils]: 7: Hoare triple {31007#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume a[i] != 23;i := i + 4; {31014#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:27,971 INFO L273 TraceCheckUtils]: 8: Hoare triple {31014#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {31014#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:27,972 INFO L273 TraceCheckUtils]: 9: Hoare triple {31014#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {31021#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:27,973 INFO L273 TraceCheckUtils]: 10: Hoare triple {31021#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {31021#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:27,974 INFO L273 TraceCheckUtils]: 11: Hoare triple {31021#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {31028#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:27,974 INFO L273 TraceCheckUtils]: 12: Hoare triple {31028#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {31028#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:27,975 INFO L273 TraceCheckUtils]: 13: Hoare triple {31028#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {31035#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:27,976 INFO L273 TraceCheckUtils]: 14: Hoare triple {31035#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {31035#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:27,976 INFO L273 TraceCheckUtils]: 15: Hoare triple {31035#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {31042#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:27,977 INFO L273 TraceCheckUtils]: 16: Hoare triple {31042#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {31042#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:27,978 INFO L273 TraceCheckUtils]: 17: Hoare triple {31042#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {31049#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:27,978 INFO L273 TraceCheckUtils]: 18: Hoare triple {31049#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {31049#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:27,979 INFO L273 TraceCheckUtils]: 19: Hoare triple {31049#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {31056#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:27,980 INFO L273 TraceCheckUtils]: 20: Hoare triple {31056#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {31056#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:27,981 INFO L273 TraceCheckUtils]: 21: Hoare triple {31056#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {31063#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:27,981 INFO L273 TraceCheckUtils]: 22: Hoare triple {31063#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {31063#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:27,982 INFO L273 TraceCheckUtils]: 23: Hoare triple {31063#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {31070#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:27,983 INFO L273 TraceCheckUtils]: 24: Hoare triple {31070#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {31070#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:27,983 INFO L273 TraceCheckUtils]: 25: Hoare triple {31070#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {31077#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:27,984 INFO L273 TraceCheckUtils]: 26: Hoare triple {31077#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {31077#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:27,985 INFO L273 TraceCheckUtils]: 27: Hoare triple {31077#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {31084#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:27,985 INFO L273 TraceCheckUtils]: 28: Hoare triple {31084#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {31084#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:27,986 INFO L273 TraceCheckUtils]: 29: Hoare triple {31084#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {31091#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:27,987 INFO L273 TraceCheckUtils]: 30: Hoare triple {31091#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {31091#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:27,988 INFO L273 TraceCheckUtils]: 31: Hoare triple {31091#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {31098#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:27,988 INFO L273 TraceCheckUtils]: 32: Hoare triple {31098#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {31098#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:27,989 INFO L273 TraceCheckUtils]: 33: Hoare triple {31098#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {31105#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:27,990 INFO L273 TraceCheckUtils]: 34: Hoare triple {31105#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {31105#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:27,990 INFO L273 TraceCheckUtils]: 35: Hoare triple {31105#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {31112#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:27,991 INFO L273 TraceCheckUtils]: 36: Hoare triple {31112#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {31112#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:27,992 INFO L273 TraceCheckUtils]: 37: Hoare triple {31112#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {31119#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:27,992 INFO L273 TraceCheckUtils]: 38: Hoare triple {31119#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {31119#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:27,993 INFO L273 TraceCheckUtils]: 39: Hoare triple {31119#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {31126#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} is VALID [2019-01-31 14:40:27,994 INFO L273 TraceCheckUtils]: 40: Hoare triple {31126#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} assume i <= n * 4; {31126#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} is VALID [2019-01-31 14:40:27,995 INFO L273 TraceCheckUtils]: 41: Hoare triple {31126#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} assume a[i] != 23;i := i + 4; {31133#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:27,995 INFO L273 TraceCheckUtils]: 42: Hoare triple {31133#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {31133#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:27,996 INFO L273 TraceCheckUtils]: 43: Hoare triple {31133#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {31140#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:27,997 INFO L273 TraceCheckUtils]: 44: Hoare triple {31140#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {31140#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:27,998 INFO L273 TraceCheckUtils]: 45: Hoare triple {31140#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {31147#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:27,998 INFO L273 TraceCheckUtils]: 46: Hoare triple {31147#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {31147#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:27,999 INFO L273 TraceCheckUtils]: 47: Hoare triple {31147#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {31154#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:28,000 INFO L273 TraceCheckUtils]: 48: Hoare triple {31154#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {31154#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:28,000 INFO L273 TraceCheckUtils]: 49: Hoare triple {31154#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {31161#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:28,001 INFO L273 TraceCheckUtils]: 50: Hoare triple {31161#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {31161#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:28,002 INFO L273 TraceCheckUtils]: 51: Hoare triple {31161#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {31168#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:28,003 INFO L273 TraceCheckUtils]: 52: Hoare triple {31168#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {31168#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:28,003 INFO L273 TraceCheckUtils]: 53: Hoare triple {31168#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {31175#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:28,004 INFO L273 TraceCheckUtils]: 54: Hoare triple {31175#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {31175#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:28,005 INFO L273 TraceCheckUtils]: 55: Hoare triple {31175#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {31182#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:28,005 INFO L273 TraceCheckUtils]: 56: Hoare triple {31182#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {31182#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:28,006 INFO L273 TraceCheckUtils]: 57: Hoare triple {31182#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {31189#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:28,007 INFO L273 TraceCheckUtils]: 58: Hoare triple {31189#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {31189#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:28,008 INFO L273 TraceCheckUtils]: 59: Hoare triple {31189#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {31196#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:28,008 INFO L273 TraceCheckUtils]: 60: Hoare triple {31196#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {31196#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:28,009 INFO L273 TraceCheckUtils]: 61: Hoare triple {31196#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {31203#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:28,010 INFO L273 TraceCheckUtils]: 62: Hoare triple {31203#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {31203#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:28,011 INFO L273 TraceCheckUtils]: 63: Hoare triple {31203#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {31210#(and (= main_i 128) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:28,011 INFO L273 TraceCheckUtils]: 64: Hoare triple {31210#(and (= main_i 128) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {31210#(and (= main_i 128) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:28,012 INFO L273 TraceCheckUtils]: 65: Hoare triple {31210#(and (= main_i 128) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {31217#(and (= main_i 132) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:28,013 INFO L273 TraceCheckUtils]: 66: Hoare triple {31217#(and (= main_i 132) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {31217#(and (= main_i 132) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:28,013 INFO L273 TraceCheckUtils]: 67: Hoare triple {31217#(and (= main_i 132) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {31224#(and (= main_i 136) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:28,014 INFO L273 TraceCheckUtils]: 68: Hoare triple {31224#(and (= main_i 136) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {31224#(and (= main_i 136) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:28,015 INFO L273 TraceCheckUtils]: 69: Hoare triple {31224#(and (= main_i 136) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {31231#(and (= 23 (select main_a (* 4 main_n))) (= main_i 140))} is VALID [2019-01-31 14:40:28,016 INFO L273 TraceCheckUtils]: 70: Hoare triple {31231#(and (= 23 (select main_a (* 4 main_n))) (= main_i 140))} assume i <= n * 4; {31231#(and (= 23 (select main_a (* 4 main_n))) (= main_i 140))} is VALID [2019-01-31 14:40:28,017 INFO L273 TraceCheckUtils]: 71: Hoare triple {31231#(and (= 23 (select main_a (* 4 main_n))) (= main_i 140))} assume a[i] != 23;i := i + 4; {31238#(and (= main_i 144) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:28,017 INFO L273 TraceCheckUtils]: 72: Hoare triple {31238#(and (= main_i 144) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {31238#(and (= main_i 144) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:28,018 INFO L273 TraceCheckUtils]: 73: Hoare triple {31238#(and (= main_i 144) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {31245#(and (= main_i 148) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:28,019 INFO L273 TraceCheckUtils]: 74: Hoare triple {31245#(and (= main_i 148) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {31245#(and (= main_i 148) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:28,019 INFO L273 TraceCheckUtils]: 75: Hoare triple {31245#(and (= main_i 148) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {31252#(and (= main_i 152) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:28,020 INFO L273 TraceCheckUtils]: 76: Hoare triple {31252#(and (= main_i 152) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {31252#(and (= main_i 152) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:28,021 INFO L273 TraceCheckUtils]: 77: Hoare triple {31252#(and (= main_i 152) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {31259#(and (= main_i 156) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:28,021 INFO L273 TraceCheckUtils]: 78: Hoare triple {31259#(and (= main_i 156) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {31259#(and (= main_i 156) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:28,022 INFO L273 TraceCheckUtils]: 79: Hoare triple {31259#(and (= main_i 156) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {31266#(and (= main_i 160) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:28,023 INFO L273 TraceCheckUtils]: 80: Hoare triple {31266#(and (= main_i 160) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {31266#(and (= main_i 160) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:28,024 INFO L273 TraceCheckUtils]: 81: Hoare triple {31266#(and (= main_i 160) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {31273#(and (= 23 (select main_a (* 4 main_n))) (= main_i 164))} is VALID [2019-01-31 14:40:28,024 INFO L273 TraceCheckUtils]: 82: Hoare triple {31273#(and (= 23 (select main_a (* 4 main_n))) (= main_i 164))} assume i <= n * 4; {31273#(and (= 23 (select main_a (* 4 main_n))) (= main_i 164))} is VALID [2019-01-31 14:40:28,025 INFO L273 TraceCheckUtils]: 83: Hoare triple {31273#(and (= 23 (select main_a (* 4 main_n))) (= main_i 164))} assume a[i] != 23;i := i + 4; {31280#(and (= main_i 168) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:28,026 INFO L273 TraceCheckUtils]: 84: Hoare triple {31280#(and (= main_i 168) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {31280#(and (= main_i 168) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:28,026 INFO L273 TraceCheckUtils]: 85: Hoare triple {31280#(and (= main_i 168) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {31287#(and (= main_i 172) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:28,027 INFO L273 TraceCheckUtils]: 86: Hoare triple {31287#(and (= main_i 172) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {31287#(and (= main_i 172) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:28,028 INFO L273 TraceCheckUtils]: 87: Hoare triple {31287#(and (= main_i 172) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {31294#(and (= main_i 176) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:28,029 INFO L273 TraceCheckUtils]: 88: Hoare triple {31294#(and (= main_i 176) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {31294#(and (= main_i 176) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:28,029 INFO L273 TraceCheckUtils]: 89: Hoare triple {31294#(and (= main_i 176) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {31301#(and (= main_i 180) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:28,030 INFO L273 TraceCheckUtils]: 90: Hoare triple {31301#(and (= main_i 180) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {31301#(and (= main_i 180) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:28,031 INFO L273 TraceCheckUtils]: 91: Hoare triple {31301#(and (= main_i 180) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {31308#(and (= main_i 184) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:28,031 INFO L273 TraceCheckUtils]: 92: Hoare triple {31308#(and (= main_i 184) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {31308#(and (= main_i 184) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:28,032 INFO L273 TraceCheckUtils]: 93: Hoare triple {31308#(and (= main_i 184) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {31315#(and (= main_i 188) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:28,033 INFO L273 TraceCheckUtils]: 94: Hoare triple {31315#(and (= main_i 188) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {31315#(and (= main_i 188) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:28,034 INFO L273 TraceCheckUtils]: 95: Hoare triple {31315#(and (= main_i 188) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {31322#(and (= main_i 192) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:28,034 INFO L273 TraceCheckUtils]: 96: Hoare triple {31322#(and (= main_i 192) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {31326#(and (= main_i 192) (<= main_i (* 4 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:28,035 INFO L273 TraceCheckUtils]: 97: Hoare triple {31326#(and (= main_i 192) (<= main_i (* 4 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {30985#(and (< 48 main_n) (<= main_i 196))} is VALID [2019-01-31 14:40:28,036 INFO L273 TraceCheckUtils]: 98: Hoare triple {30985#(and (< 48 main_n) (<= main_i 196))} assume !(i <= n * 4); {30934#false} is VALID [2019-01-31 14:40:28,062 INFO L134 CoverageAnalysis]: Checked inductivity of 2352 backedges. 0 proven. 2352 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-31 14:40:28,062 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2019-01-31 14:40:35,144 INFO L273 TraceCheckUtils]: 98: Hoare triple {31333#(<= main_i (* 4 main_n))} assume !(i <= n * 4); {30934#false} is VALID [2019-01-31 14:40:35,146 INFO L273 TraceCheckUtils]: 97: Hoare triple {31337#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} assume a[i] != 23;i := i + 4; {31333#(<= main_i (* 4 main_n))} is VALID [2019-01-31 14:40:35,146 INFO L273 TraceCheckUtils]: 96: Hoare triple {31341#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} assume i <= n * 4; {31337#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} is VALID [2019-01-31 14:40:35,147 INFO L273 TraceCheckUtils]: 95: Hoare triple {31345#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume a[i] != 23;i := i + 4; {31341#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} is VALID [2019-01-31 14:40:35,147 INFO L273 TraceCheckUtils]: 94: Hoare triple {31345#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume i <= n * 4; {31345#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2019-01-31 14:40:35,148 INFO L273 TraceCheckUtils]: 93: Hoare triple {31352#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume a[i] != 23;i := i + 4; {31345#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2019-01-31 14:40:35,148 INFO L273 TraceCheckUtils]: 92: Hoare triple {31352#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume i <= n * 4; {31352#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2019-01-31 14:40:35,149 INFO L273 TraceCheckUtils]: 91: Hoare triple {31359#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume a[i] != 23;i := i + 4; {31352#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2019-01-31 14:40:35,150 INFO L273 TraceCheckUtils]: 90: Hoare triple {31359#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume i <= n * 4; {31359#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2019-01-31 14:40:35,151 INFO L273 TraceCheckUtils]: 89: Hoare triple {31366#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume a[i] != 23;i := i + 4; {31359#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2019-01-31 14:40:35,151 INFO L273 TraceCheckUtils]: 88: Hoare triple {31366#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume i <= n * 4; {31366#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2019-01-31 14:40:35,153 INFO L273 TraceCheckUtils]: 87: Hoare triple {31373#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {31366#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2019-01-31 14:40:35,153 INFO L273 TraceCheckUtils]: 86: Hoare triple {31373#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume i <= n * 4; {31373#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2019-01-31 14:40:35,154 INFO L273 TraceCheckUtils]: 85: Hoare triple {31380#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume a[i] != 23;i := i + 4; {31373#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2019-01-31 14:40:35,155 INFO L273 TraceCheckUtils]: 84: Hoare triple {31380#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume i <= n * 4; {31380#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2019-01-31 14:40:35,156 INFO L273 TraceCheckUtils]: 83: Hoare triple {31387#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {31380#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2019-01-31 14:40:35,156 INFO L273 TraceCheckUtils]: 82: Hoare triple {31387#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume i <= n * 4; {31387#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2019-01-31 14:40:35,157 INFO L273 TraceCheckUtils]: 81: Hoare triple {31394#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {31387#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2019-01-31 14:40:35,158 INFO L273 TraceCheckUtils]: 80: Hoare triple {31394#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume i <= n * 4; {31394#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2019-01-31 14:40:35,159 INFO L273 TraceCheckUtils]: 79: Hoare triple {31401#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {31394#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2019-01-31 14:40:35,159 INFO L273 TraceCheckUtils]: 78: Hoare triple {31401#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume i <= n * 4; {31401#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2019-01-31 14:40:35,160 INFO L273 TraceCheckUtils]: 77: Hoare triple {31408#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} assume a[i] != 23;i := i + 4; {31401#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2019-01-31 14:40:35,161 INFO L273 TraceCheckUtils]: 76: Hoare triple {31408#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} assume i <= n * 4; {31408#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} is VALID [2019-01-31 14:40:35,162 INFO L273 TraceCheckUtils]: 75: Hoare triple {31415#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {31408#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} is VALID [2019-01-31 14:40:35,162 INFO L273 TraceCheckUtils]: 74: Hoare triple {31415#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} assume i <= n * 4; {31415#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} is VALID [2019-01-31 14:40:35,163 INFO L273 TraceCheckUtils]: 73: Hoare triple {31422#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {31415#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} is VALID [2019-01-31 14:40:35,164 INFO L273 TraceCheckUtils]: 72: Hoare triple {31422#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} assume i <= n * 4; {31422#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} is VALID [2019-01-31 14:40:35,165 INFO L273 TraceCheckUtils]: 71: Hoare triple {31429#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} assume a[i] != 23;i := i + 4; {31422#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} is VALID [2019-01-31 14:40:35,166 INFO L273 TraceCheckUtils]: 70: Hoare triple {31429#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} assume i <= n * 4; {31429#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} is VALID [2019-01-31 14:40:35,167 INFO L273 TraceCheckUtils]: 69: Hoare triple {31436#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {31429#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} is VALID [2019-01-31 14:40:35,167 INFO L273 TraceCheckUtils]: 68: Hoare triple {31436#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} assume i <= n * 4; {31436#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} is VALID [2019-01-31 14:40:35,168 INFO L273 TraceCheckUtils]: 67: Hoare triple {31443#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} assume a[i] != 23;i := i + 4; {31436#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} is VALID [2019-01-31 14:40:35,169 INFO L273 TraceCheckUtils]: 66: Hoare triple {31443#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} assume i <= n * 4; {31443#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} is VALID [2019-01-31 14:40:35,170 INFO L273 TraceCheckUtils]: 65: Hoare triple {31450#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} assume a[i] != 23;i := i + 4; {31443#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} is VALID [2019-01-31 14:40:35,170 INFO L273 TraceCheckUtils]: 64: Hoare triple {31450#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} assume i <= n * 4; {31450#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} is VALID [2019-01-31 14:40:35,171 INFO L273 TraceCheckUtils]: 63: Hoare triple {31457#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} assume a[i] != 23;i := i + 4; {31450#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} is VALID [2019-01-31 14:40:35,172 INFO L273 TraceCheckUtils]: 62: Hoare triple {31457#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} assume i <= n * 4; {31457#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} is VALID [2019-01-31 14:40:35,173 INFO L273 TraceCheckUtils]: 61: Hoare triple {31464#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} assume a[i] != 23;i := i + 4; {31457#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} is VALID [2019-01-31 14:40:35,173 INFO L273 TraceCheckUtils]: 60: Hoare triple {31464#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} assume i <= n * 4; {31464#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} is VALID [2019-01-31 14:40:35,174 INFO L273 TraceCheckUtils]: 59: Hoare triple {31471#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} assume a[i] != 23;i := i + 4; {31464#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} is VALID [2019-01-31 14:40:35,175 INFO L273 TraceCheckUtils]: 58: Hoare triple {31471#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} assume i <= n * 4; {31471#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} is VALID [2019-01-31 14:40:35,176 INFO L273 TraceCheckUtils]: 57: Hoare triple {31478#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} assume a[i] != 23;i := i + 4; {31471#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} is VALID [2019-01-31 14:40:35,176 INFO L273 TraceCheckUtils]: 56: Hoare triple {31478#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} assume i <= n * 4; {31478#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} is VALID [2019-01-31 14:40:35,177 INFO L273 TraceCheckUtils]: 55: Hoare triple {31485#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {31478#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} is VALID [2019-01-31 14:40:35,178 INFO L273 TraceCheckUtils]: 54: Hoare triple {31485#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} assume i <= n * 4; {31485#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} is VALID [2019-01-31 14:40:35,179 INFO L273 TraceCheckUtils]: 53: Hoare triple {31492#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {31485#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} is VALID [2019-01-31 14:40:35,180 INFO L273 TraceCheckUtils]: 52: Hoare triple {31492#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} assume i <= n * 4; {31492#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} is VALID [2019-01-31 14:40:35,181 INFO L273 TraceCheckUtils]: 51: Hoare triple {31499#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {31492#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} is VALID [2019-01-31 14:40:35,181 INFO L273 TraceCheckUtils]: 50: Hoare triple {31499#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} assume i <= n * 4; {31499#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} is VALID [2019-01-31 14:40:35,182 INFO L273 TraceCheckUtils]: 49: Hoare triple {31506#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} assume a[i] != 23;i := i + 4; {31499#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} is VALID [2019-01-31 14:40:35,183 INFO L273 TraceCheckUtils]: 48: Hoare triple {31506#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} assume i <= n * 4; {31506#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} is VALID [2019-01-31 14:40:35,184 INFO L273 TraceCheckUtils]: 47: Hoare triple {31513#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {31506#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} is VALID [2019-01-31 14:40:35,184 INFO L273 TraceCheckUtils]: 46: Hoare triple {31513#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} assume i <= n * 4; {31513#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} is VALID [2019-01-31 14:40:35,185 INFO L273 TraceCheckUtils]: 45: Hoare triple {31520#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} assume a[i] != 23;i := i + 4; {31513#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} is VALID [2019-01-31 14:40:35,186 INFO L273 TraceCheckUtils]: 44: Hoare triple {31520#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} assume i <= n * 4; {31520#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} is VALID [2019-01-31 14:40:35,187 INFO L273 TraceCheckUtils]: 43: Hoare triple {31527#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} assume a[i] != 23;i := i + 4; {31520#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} is VALID [2019-01-31 14:40:35,187 INFO L273 TraceCheckUtils]: 42: Hoare triple {31527#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} assume i <= n * 4; {31527#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} is VALID [2019-01-31 14:40:35,188 INFO L273 TraceCheckUtils]: 41: Hoare triple {31534#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} assume a[i] != 23;i := i + 4; {31527#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} is VALID [2019-01-31 14:40:35,189 INFO L273 TraceCheckUtils]: 40: Hoare triple {31534#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} assume i <= n * 4; {31534#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} is VALID [2019-01-31 14:40:35,190 INFO L273 TraceCheckUtils]: 39: Hoare triple {31541#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {31534#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} is VALID [2019-01-31 14:40:35,191 INFO L273 TraceCheckUtils]: 38: Hoare triple {31541#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} assume i <= n * 4; {31541#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} is VALID [2019-01-31 14:40:35,192 INFO L273 TraceCheckUtils]: 37: Hoare triple {31548#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {31541#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} is VALID [2019-01-31 14:40:35,192 INFO L273 TraceCheckUtils]: 36: Hoare triple {31548#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} assume i <= n * 4; {31548#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} is VALID [2019-01-31 14:40:35,193 INFO L273 TraceCheckUtils]: 35: Hoare triple {31555#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} assume a[i] != 23;i := i + 4; {31548#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} is VALID [2019-01-31 14:40:35,194 INFO L273 TraceCheckUtils]: 34: Hoare triple {31555#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} assume i <= n * 4; {31555#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} is VALID [2019-01-31 14:40:35,195 INFO L273 TraceCheckUtils]: 33: Hoare triple {31562#(or (< (* 4 main_n) (+ main_i 128)) (= (select main_a (+ main_i 128)) 23) (< (+ main_i 131) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {31555#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} is VALID [2019-01-31 14:40:35,195 INFO L273 TraceCheckUtils]: 32: Hoare triple {31562#(or (< (* 4 main_n) (+ main_i 128)) (= (select main_a (+ main_i 128)) 23) (< (+ main_i 131) (* 4 main_n)))} assume i <= n * 4; {31562#(or (< (* 4 main_n) (+ main_i 128)) (= (select main_a (+ main_i 128)) 23) (< (+ main_i 131) (* 4 main_n)))} is VALID [2019-01-31 14:40:35,196 INFO L273 TraceCheckUtils]: 31: Hoare triple {31569#(or (< (* 4 main_n) (+ main_i 132)) (< (+ main_i 135) (* 4 main_n)) (= (select main_a (+ main_i 132)) 23))} assume a[i] != 23;i := i + 4; {31562#(or (< (* 4 main_n) (+ main_i 128)) (= (select main_a (+ main_i 128)) 23) (< (+ main_i 131) (* 4 main_n)))} is VALID [2019-01-31 14:40:35,197 INFO L273 TraceCheckUtils]: 30: Hoare triple {31569#(or (< (* 4 main_n) (+ main_i 132)) (< (+ main_i 135) (* 4 main_n)) (= (select main_a (+ main_i 132)) 23))} assume i <= n * 4; {31569#(or (< (* 4 main_n) (+ main_i 132)) (< (+ main_i 135) (* 4 main_n)) (= (select main_a (+ main_i 132)) 23))} is VALID [2019-01-31 14:40:35,198 INFO L273 TraceCheckUtils]: 29: Hoare triple {31576#(or (< (+ main_i 139) (* 4 main_n)) (= (select main_a (+ main_i 136)) 23) (< (* 4 main_n) (+ main_i 136)))} assume a[i] != 23;i := i + 4; {31569#(or (< (* 4 main_n) (+ main_i 132)) (< (+ main_i 135) (* 4 main_n)) (= (select main_a (+ main_i 132)) 23))} is VALID [2019-01-31 14:40:35,198 INFO L273 TraceCheckUtils]: 28: Hoare triple {31576#(or (< (+ main_i 139) (* 4 main_n)) (= (select main_a (+ main_i 136)) 23) (< (* 4 main_n) (+ main_i 136)))} assume i <= n * 4; {31576#(or (< (+ main_i 139) (* 4 main_n)) (= (select main_a (+ main_i 136)) 23) (< (* 4 main_n) (+ main_i 136)))} is VALID [2019-01-31 14:40:35,199 INFO L273 TraceCheckUtils]: 27: Hoare triple {31583#(or (< (* 4 main_n) (+ main_i 140)) (< (+ main_i 143) (* 4 main_n)) (= (select main_a (+ main_i 140)) 23))} assume a[i] != 23;i := i + 4; {31576#(or (< (+ main_i 139) (* 4 main_n)) (= (select main_a (+ main_i 136)) 23) (< (* 4 main_n) (+ main_i 136)))} is VALID [2019-01-31 14:40:35,200 INFO L273 TraceCheckUtils]: 26: Hoare triple {31583#(or (< (* 4 main_n) (+ main_i 140)) (< (+ main_i 143) (* 4 main_n)) (= (select main_a (+ main_i 140)) 23))} assume i <= n * 4; {31583#(or (< (* 4 main_n) (+ main_i 140)) (< (+ main_i 143) (* 4 main_n)) (= (select main_a (+ main_i 140)) 23))} is VALID [2019-01-31 14:40:35,201 INFO L273 TraceCheckUtils]: 25: Hoare triple {31590#(or (= (select main_a (+ main_i 144)) 23) (< (+ main_i 147) (* 4 main_n)) (< (* 4 main_n) (+ main_i 144)))} assume a[i] != 23;i := i + 4; {31583#(or (< (* 4 main_n) (+ main_i 140)) (< (+ main_i 143) (* 4 main_n)) (= (select main_a (+ main_i 140)) 23))} is VALID [2019-01-31 14:40:35,202 INFO L273 TraceCheckUtils]: 24: Hoare triple {31590#(or (= (select main_a (+ main_i 144)) 23) (< (+ main_i 147) (* 4 main_n)) (< (* 4 main_n) (+ main_i 144)))} assume i <= n * 4; {31590#(or (= (select main_a (+ main_i 144)) 23) (< (+ main_i 147) (* 4 main_n)) (< (* 4 main_n) (+ main_i 144)))} is VALID [2019-01-31 14:40:35,203 INFO L273 TraceCheckUtils]: 23: Hoare triple {31597#(or (< (+ main_i 151) (* 4 main_n)) (< (* 4 main_n) (+ main_i 148)) (= (select main_a (+ main_i 148)) 23))} assume a[i] != 23;i := i + 4; {31590#(or (= (select main_a (+ main_i 144)) 23) (< (+ main_i 147) (* 4 main_n)) (< (* 4 main_n) (+ main_i 144)))} is VALID [2019-01-31 14:40:35,203 INFO L273 TraceCheckUtils]: 22: Hoare triple {31597#(or (< (+ main_i 151) (* 4 main_n)) (< (* 4 main_n) (+ main_i 148)) (= (select main_a (+ main_i 148)) 23))} assume i <= n * 4; {31597#(or (< (+ main_i 151) (* 4 main_n)) (< (* 4 main_n) (+ main_i 148)) (= (select main_a (+ main_i 148)) 23))} is VALID [2019-01-31 14:40:35,204 INFO L273 TraceCheckUtils]: 21: Hoare triple {31604#(or (= 23 (select main_a (+ main_i 152))) (< (+ main_i 155) (* 4 main_n)) (< (* 4 main_n) (+ main_i 152)))} assume a[i] != 23;i := i + 4; {31597#(or (< (+ main_i 151) (* 4 main_n)) (< (* 4 main_n) (+ main_i 148)) (= (select main_a (+ main_i 148)) 23))} is VALID [2019-01-31 14:40:35,205 INFO L273 TraceCheckUtils]: 20: Hoare triple {31604#(or (= 23 (select main_a (+ main_i 152))) (< (+ main_i 155) (* 4 main_n)) (< (* 4 main_n) (+ main_i 152)))} assume i <= n * 4; {31604#(or (= 23 (select main_a (+ main_i 152))) (< (+ main_i 155) (* 4 main_n)) (< (* 4 main_n) (+ main_i 152)))} is VALID [2019-01-31 14:40:35,206 INFO L273 TraceCheckUtils]: 19: Hoare triple {31611#(or (< (+ main_i 159) (* 4 main_n)) (= (select main_a (+ main_i 156)) 23) (< (* 4 main_n) (+ main_i 156)))} assume a[i] != 23;i := i + 4; {31604#(or (= 23 (select main_a (+ main_i 152))) (< (+ main_i 155) (* 4 main_n)) (< (* 4 main_n) (+ main_i 152)))} is VALID [2019-01-31 14:40:35,206 INFO L273 TraceCheckUtils]: 18: Hoare triple {31611#(or (< (+ main_i 159) (* 4 main_n)) (= (select main_a (+ main_i 156)) 23) (< (* 4 main_n) (+ main_i 156)))} assume i <= n * 4; {31611#(or (< (+ main_i 159) (* 4 main_n)) (= (select main_a (+ main_i 156)) 23) (< (* 4 main_n) (+ main_i 156)))} is VALID [2019-01-31 14:40:35,207 INFO L273 TraceCheckUtils]: 17: Hoare triple {31618#(or (< (+ main_i 163) (* 4 main_n)) (= (select main_a (+ main_i 160)) 23) (< (* 4 main_n) (+ main_i 160)))} assume a[i] != 23;i := i + 4; {31611#(or (< (+ main_i 159) (* 4 main_n)) (= (select main_a (+ main_i 156)) 23) (< (* 4 main_n) (+ main_i 156)))} is VALID [2019-01-31 14:40:35,208 INFO L273 TraceCheckUtils]: 16: Hoare triple {31618#(or (< (+ main_i 163) (* 4 main_n)) (= (select main_a (+ main_i 160)) 23) (< (* 4 main_n) (+ main_i 160)))} assume i <= n * 4; {31618#(or (< (+ main_i 163) (* 4 main_n)) (= (select main_a (+ main_i 160)) 23) (< (* 4 main_n) (+ main_i 160)))} is VALID [2019-01-31 14:40:35,209 INFO L273 TraceCheckUtils]: 15: Hoare triple {31625#(or (< (* 4 main_n) (+ main_i 164)) (< (+ main_i 167) (* 4 main_n)) (= (select main_a (+ main_i 164)) 23))} assume a[i] != 23;i := i + 4; {31618#(or (< (+ main_i 163) (* 4 main_n)) (= (select main_a (+ main_i 160)) 23) (< (* 4 main_n) (+ main_i 160)))} is VALID [2019-01-31 14:40:35,210 INFO L273 TraceCheckUtils]: 14: Hoare triple {31625#(or (< (* 4 main_n) (+ main_i 164)) (< (+ main_i 167) (* 4 main_n)) (= (select main_a (+ main_i 164)) 23))} assume i <= n * 4; {31625#(or (< (* 4 main_n) (+ main_i 164)) (< (+ main_i 167) (* 4 main_n)) (= (select main_a (+ main_i 164)) 23))} is VALID [2019-01-31 14:40:35,211 INFO L273 TraceCheckUtils]: 13: Hoare triple {31632#(or (= (select main_a (+ main_i 168)) 23) (< (* 4 main_n) (+ main_i 168)) (< (+ main_i 171) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {31625#(or (< (* 4 main_n) (+ main_i 164)) (< (+ main_i 167) (* 4 main_n)) (= (select main_a (+ main_i 164)) 23))} is VALID [2019-01-31 14:40:35,211 INFO L273 TraceCheckUtils]: 12: Hoare triple {31632#(or (= (select main_a (+ main_i 168)) 23) (< (* 4 main_n) (+ main_i 168)) (< (+ main_i 171) (* 4 main_n)))} assume i <= n * 4; {31632#(or (= (select main_a (+ main_i 168)) 23) (< (* 4 main_n) (+ main_i 168)) (< (+ main_i 171) (* 4 main_n)))} is VALID [2019-01-31 14:40:35,212 INFO L273 TraceCheckUtils]: 11: Hoare triple {31639#(or (< (* 4 main_n) (+ main_i 172)) (= (select main_a (+ main_i 172)) 23) (< (+ main_i 175) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {31632#(or (= (select main_a (+ main_i 168)) 23) (< (* 4 main_n) (+ main_i 168)) (< (+ main_i 171) (* 4 main_n)))} is VALID [2019-01-31 14:40:35,213 INFO L273 TraceCheckUtils]: 10: Hoare triple {31639#(or (< (* 4 main_n) (+ main_i 172)) (= (select main_a (+ main_i 172)) 23) (< (+ main_i 175) (* 4 main_n)))} assume i <= n * 4; {31639#(or (< (* 4 main_n) (+ main_i 172)) (= (select main_a (+ main_i 172)) 23) (< (+ main_i 175) (* 4 main_n)))} is VALID [2019-01-31 14:40:35,214 INFO L273 TraceCheckUtils]: 9: Hoare triple {31646#(or (= (select main_a (+ main_i 176)) 23) (< (+ main_i 179) (* 4 main_n)) (< (* 4 main_n) (+ main_i 176)))} assume a[i] != 23;i := i + 4; {31639#(or (< (* 4 main_n) (+ main_i 172)) (= (select main_a (+ main_i 172)) 23) (< (+ main_i 175) (* 4 main_n)))} is VALID [2019-01-31 14:40:35,214 INFO L273 TraceCheckUtils]: 8: Hoare triple {31646#(or (= (select main_a (+ main_i 176)) 23) (< (+ main_i 179) (* 4 main_n)) (< (* 4 main_n) (+ main_i 176)))} assume i <= n * 4; {31646#(or (= (select main_a (+ main_i 176)) 23) (< (+ main_i 179) (* 4 main_n)) (< (* 4 main_n) (+ main_i 176)))} is VALID [2019-01-31 14:40:35,215 INFO L273 TraceCheckUtils]: 7: Hoare triple {31653#(or (< (+ main_i 183) (* 4 main_n)) (= (select main_a (+ main_i 180)) 23) (< (* 4 main_n) (+ main_i 180)))} assume a[i] != 23;i := i + 4; {31646#(or (= (select main_a (+ main_i 176)) 23) (< (+ main_i 179) (* 4 main_n)) (< (* 4 main_n) (+ main_i 176)))} is VALID [2019-01-31 14:40:35,216 INFO L273 TraceCheckUtils]: 6: Hoare triple {31653#(or (< (+ main_i 183) (* 4 main_n)) (= (select main_a (+ main_i 180)) 23) (< (* 4 main_n) (+ main_i 180)))} assume i <= n * 4; {31653#(or (< (+ main_i 183) (* 4 main_n)) (= (select main_a (+ main_i 180)) 23) (< (* 4 main_n) (+ main_i 180)))} is VALID [2019-01-31 14:40:35,217 INFO L273 TraceCheckUtils]: 5: Hoare triple {31660#(or (= (select main_a (+ main_i 184)) 23) (< (+ main_i 187) (* 4 main_n)) (< (* 4 main_n) (+ main_i 184)))} assume a[i] != 23;i := i + 4; {31653#(or (< (+ main_i 183) (* 4 main_n)) (= (select main_a (+ main_i 180)) 23) (< (* 4 main_n) (+ main_i 180)))} is VALID [2019-01-31 14:40:35,217 INFO L273 TraceCheckUtils]: 4: Hoare triple {31660#(or (= (select main_a (+ main_i 184)) 23) (< (+ main_i 187) (* 4 main_n)) (< (* 4 main_n) (+ main_i 184)))} assume i <= n * 4; {31660#(or (= (select main_a (+ main_i 184)) 23) (< (+ main_i 187) (* 4 main_n)) (< (* 4 main_n) (+ main_i 184)))} is VALID [2019-01-31 14:40:35,218 INFO L273 TraceCheckUtils]: 3: Hoare triple {31667#(or (< (+ main_i 191) (* 4 main_n)) (< (* 4 main_n) (+ main_i 188)) (= 23 (select main_a (+ main_i 188))))} assume a[i] != 23;i := i + 4; {31660#(or (= (select main_a (+ main_i 184)) 23) (< (+ main_i 187) (* 4 main_n)) (< (* 4 main_n) (+ main_i 184)))} is VALID [2019-01-31 14:40:35,219 INFO L273 TraceCheckUtils]: 2: Hoare triple {31667#(or (< (+ main_i 191) (* 4 main_n)) (< (* 4 main_n) (+ main_i 188)) (= 23 (select main_a (+ main_i 188))))} assume i <= n * 4; {31667#(or (< (+ main_i 191) (* 4 main_n)) (< (* 4 main_n) (+ main_i 188)) (= 23 (select main_a (+ main_i 188))))} is VALID [2019-01-31 14:40:35,220 INFO L273 TraceCheckUtils]: 1: Hoare triple {31674#(or (= 23 (select main_a (+ main_i 192))) (< (+ main_i 195) (* 4 main_n)) (< (* 4 main_n) (+ main_i 192)))} assume a[i] != 23;i := i + 4; {31667#(or (< (+ main_i 191) (* 4 main_n)) (< (* 4 main_n) (+ main_i 188)) (= 23 (select main_a (+ main_i 188))))} is VALID [2019-01-31 14:40:35,221 INFO L273 TraceCheckUtils]: 0: Hoare triple {30933#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {31674#(or (= 23 (select main_a (+ main_i 192))) (< (+ main_i 195) (* 4 main_n)) (< (* 4 main_n) (+ main_i 192)))} is VALID [2019-01-31 14:40:35,260 INFO L134 CoverageAnalysis]: Checked inductivity of 2352 backedges. 0 proven. 2352 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-31 14:40:35,278 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-01-31 14:40:35,279 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [51, 51, 51] total 152 [2019-01-31 14:40:35,279 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-01-31 14:40:35,279 INFO L78 Accepts]: Start accepts. Automaton has 103 states. Word has length 99 [2019-01-31 14:40:35,279 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-01-31 14:40:35,279 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 103 states. [2019-01-31 14:40:35,514 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 197 edges. 197 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-01-31 14:40:35,514 INFO L459 AbstractCegarLoop]: Interpolant automaton has 103 states [2019-01-31 14:40:35,515 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 103 interpolants. [2019-01-31 14:40:35,515 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2864, Invalid=20698, Unknown=0, NotChecked=0, Total=23562 [2019-01-31 14:40:35,516 INFO L87 Difference]: Start difference. First operand 100 states and 100 transitions. Second operand 103 states. [2019-01-31 14:40:54,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 14:40:54,862 INFO L93 Difference]: Finished difference Result 104 states and 104 transitions. [2019-01-31 14:40:54,863 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2019-01-31 14:40:54,863 INFO L78 Accepts]: Start accepts. Automaton has 103 states. Word has length 99 [2019-01-31 14:40:54,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-31 14:40:54,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 103 states. [2019-01-31 14:40:54,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 104 transitions. [2019-01-31 14:40:54,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 103 states. [2019-01-31 14:40:54,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 104 transitions. [2019-01-31 14:40:54,865 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 53 states and 104 transitions. [2019-01-31 14:40:55,033 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 14:40:55,035 INFO L225 Difference]: With dead ends: 104 [2019-01-31 14:40:55,035 INFO L226 Difference]: Without dead ends: 103 [2019-01-31 14:40:55,036 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 247 GetRequests, 94 SyntacticMatches, 1 SemanticMatches, 152 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5300 ImplicationChecksByTransitivity, 13.1s TimeCoverageRelationStatistics Valid=2864, Invalid=20698, Unknown=0, NotChecked=0, Total=23562 [2019-01-31 14:40:55,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2019-01-31 14:40:55,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 102. [2019-01-31 14:40:55,126 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-01-31 14:40:55,127 INFO L82 GeneralOperation]: Start isEquivalent. First operand 103 states. Second operand 102 states. [2019-01-31 14:40:55,127 INFO L74 IsIncluded]: Start isIncluded. First operand 103 states. Second operand 102 states. [2019-01-31 14:40:55,127 INFO L87 Difference]: Start difference. First operand 103 states. Second operand 102 states. [2019-01-31 14:40:55,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 14:40:55,129 INFO L93 Difference]: Finished difference Result 103 states and 103 transitions. [2019-01-31 14:40:55,129 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 103 transitions. [2019-01-31 14:40:55,129 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-31 14:40:55,129 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-01-31 14:40:55,129 INFO L74 IsIncluded]: Start isIncluded. First operand 102 states. Second operand 103 states. [2019-01-31 14:40:55,129 INFO L87 Difference]: Start difference. First operand 102 states. Second operand 103 states. [2019-01-31 14:40:55,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 14:40:55,130 INFO L93 Difference]: Finished difference Result 103 states and 103 transitions. [2019-01-31 14:40:55,130 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 103 transitions. [2019-01-31 14:40:55,130 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-31 14:40:55,131 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-01-31 14:40:55,131 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-01-31 14:40:55,131 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-01-31 14:40:55,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 102 states. [2019-01-31 14:40:55,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 102 transitions. [2019-01-31 14:40:55,132 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 102 transitions. Word has length 99 [2019-01-31 14:40:55,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-31 14:40:55,132 INFO L480 AbstractCegarLoop]: Abstraction has 102 states and 102 transitions. [2019-01-31 14:40:55,132 INFO L481 AbstractCegarLoop]: Interpolant automaton has 103 states. [2019-01-31 14:40:55,132 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 102 transitions. [2019-01-31 14:40:55,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2019-01-31 14:40:55,132 INFO L394 BasicCegarLoop]: Found error trace [2019-01-31 14:40:55,133 INFO L402 BasicCegarLoop]: trace histogram [50, 49, 1, 1] [2019-01-31 14:40:55,133 INFO L423 AbstractCegarLoop]: === Iteration 50 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-01-31 14:40:55,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-31 14:40:55,133 INFO L82 PathProgramCache]: Analyzing trace with hash 1416429954, now seen corresponding path program 49 times [2019-01-31 14:40:55,133 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-01-31 14:40:55,134 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-31 14:40:55,134 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-01-31 14:40:55,134 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-31 14:40:55,134 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-01-31 14:40:55,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-31 14:40:58,139 INFO L273 TraceCheckUtils]: 0: Hoare triple {32190#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {32192#(and (or (<= 0 main_i) (< 49 main_n)) (or (<= main_n 49) (<= main_i 0)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:58,140 INFO L273 TraceCheckUtils]: 1: Hoare triple {32192#(and (or (<= 0 main_i) (< 49 main_n)) (or (<= main_n 49) (<= main_i 0)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {32193#(and (or (<= main_n 49) (<= main_i 4)) (or (<= 4 main_i) (< 49 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:58,141 INFO L273 TraceCheckUtils]: 2: Hoare triple {32193#(and (or (<= main_n 49) (<= main_i 4)) (or (<= 4 main_i) (< 49 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {32193#(and (or (<= main_n 49) (<= main_i 4)) (or (<= 4 main_i) (< 49 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:58,142 INFO L273 TraceCheckUtils]: 3: Hoare triple {32193#(and (or (<= main_n 49) (<= main_i 4)) (or (<= 4 main_i) (< 49 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {32194#(and (= 23 (select main_a (* 4 main_n))) (or (<= 8 main_i) (< 49 main_n)) (or (<= main_n 49) (<= main_i 8)))} is VALID [2019-01-31 14:40:58,142 INFO L273 TraceCheckUtils]: 4: Hoare triple {32194#(and (= 23 (select main_a (* 4 main_n))) (or (<= 8 main_i) (< 49 main_n)) (or (<= main_n 49) (<= main_i 8)))} assume i <= n * 4; {32194#(and (= 23 (select main_a (* 4 main_n))) (or (<= 8 main_i) (< 49 main_n)) (or (<= main_n 49) (<= main_i 8)))} is VALID [2019-01-31 14:40:58,143 INFO L273 TraceCheckUtils]: 5: Hoare triple {32194#(and (= 23 (select main_a (* 4 main_n))) (or (<= 8 main_i) (< 49 main_n)) (or (<= main_n 49) (<= main_i 8)))} assume a[i] != 23;i := i + 4; {32195#(and (or (<= main_n 49) (<= main_i 12)) (or (<= 12 main_i) (< 49 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:58,144 INFO L273 TraceCheckUtils]: 6: Hoare triple {32195#(and (or (<= main_n 49) (<= main_i 12)) (or (<= 12 main_i) (< 49 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {32195#(and (or (<= main_n 49) (<= main_i 12)) (or (<= 12 main_i) (< 49 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:58,145 INFO L273 TraceCheckUtils]: 7: Hoare triple {32195#(and (or (<= main_n 49) (<= main_i 12)) (or (<= 12 main_i) (< 49 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {32196#(and (or (<= 16 main_i) (< 49 main_n)) (or (<= main_n 49) (<= main_i 16)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:58,146 INFO L273 TraceCheckUtils]: 8: Hoare triple {32196#(and (or (<= 16 main_i) (< 49 main_n)) (or (<= main_n 49) (<= main_i 16)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {32196#(and (or (<= 16 main_i) (< 49 main_n)) (or (<= main_n 49) (<= main_i 16)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:58,147 INFO L273 TraceCheckUtils]: 9: Hoare triple {32196#(and (or (<= 16 main_i) (< 49 main_n)) (or (<= main_n 49) (<= main_i 16)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {32197#(and (or (<= 20 main_i) (< 49 main_n)) (or (<= main_n 49) (<= main_i 20)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:58,148 INFO L273 TraceCheckUtils]: 10: Hoare triple {32197#(and (or (<= 20 main_i) (< 49 main_n)) (or (<= main_n 49) (<= main_i 20)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {32197#(and (or (<= 20 main_i) (< 49 main_n)) (or (<= main_n 49) (<= main_i 20)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:58,149 INFO L273 TraceCheckUtils]: 11: Hoare triple {32197#(and (or (<= 20 main_i) (< 49 main_n)) (or (<= main_n 49) (<= main_i 20)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {32198#(and (or (<= 24 main_i) (< 49 main_n)) (or (<= main_n 49) (<= main_i 24)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:58,150 INFO L273 TraceCheckUtils]: 12: Hoare triple {32198#(and (or (<= 24 main_i) (< 49 main_n)) (or (<= main_n 49) (<= main_i 24)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {32198#(and (or (<= 24 main_i) (< 49 main_n)) (or (<= main_n 49) (<= main_i 24)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:58,151 INFO L273 TraceCheckUtils]: 13: Hoare triple {32198#(and (or (<= 24 main_i) (< 49 main_n)) (or (<= main_n 49) (<= main_i 24)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {32199#(and (or (<= 28 main_i) (< 49 main_n)) (or (<= main_n 49) (<= main_i 28)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:58,151 INFO L273 TraceCheckUtils]: 14: Hoare triple {32199#(and (or (<= 28 main_i) (< 49 main_n)) (or (<= main_n 49) (<= main_i 28)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {32199#(and (or (<= 28 main_i) (< 49 main_n)) (or (<= main_n 49) (<= main_i 28)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:58,152 INFO L273 TraceCheckUtils]: 15: Hoare triple {32199#(and (or (<= 28 main_i) (< 49 main_n)) (or (<= main_n 49) (<= main_i 28)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {32200#(and (or (<= main_i 32) (<= main_n 49)) (or (<= 32 main_i) (< 49 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:58,153 INFO L273 TraceCheckUtils]: 16: Hoare triple {32200#(and (or (<= main_i 32) (<= main_n 49)) (or (<= 32 main_i) (< 49 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {32200#(and (or (<= main_i 32) (<= main_n 49)) (or (<= 32 main_i) (< 49 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:58,154 INFO L273 TraceCheckUtils]: 17: Hoare triple {32200#(and (or (<= main_i 32) (<= main_n 49)) (or (<= 32 main_i) (< 49 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {32201#(and (or (<= main_i 36) (<= main_n 49)) (or (< 49 main_n) (<= 36 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:58,155 INFO L273 TraceCheckUtils]: 18: Hoare triple {32201#(and (or (<= main_i 36) (<= main_n 49)) (or (< 49 main_n) (<= 36 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {32201#(and (or (<= main_i 36) (<= main_n 49)) (or (< 49 main_n) (<= 36 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:58,156 INFO L273 TraceCheckUtils]: 19: Hoare triple {32201#(and (or (<= main_i 36) (<= main_n 49)) (or (< 49 main_n) (<= 36 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {32202#(and (or (<= 40 main_i) (< 49 main_n)) (or (<= main_n 49) (<= main_i 40)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:58,157 INFO L273 TraceCheckUtils]: 20: Hoare triple {32202#(and (or (<= 40 main_i) (< 49 main_n)) (or (<= main_n 49) (<= main_i 40)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {32202#(and (or (<= 40 main_i) (< 49 main_n)) (or (<= main_n 49) (<= main_i 40)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:58,158 INFO L273 TraceCheckUtils]: 21: Hoare triple {32202#(and (or (<= 40 main_i) (< 49 main_n)) (or (<= main_n 49) (<= main_i 40)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {32203#(and (or (<= 44 main_i) (< 49 main_n)) (or (<= main_n 49) (<= main_i 44)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:58,158 INFO L273 TraceCheckUtils]: 22: Hoare triple {32203#(and (or (<= 44 main_i) (< 49 main_n)) (or (<= main_n 49) (<= main_i 44)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {32203#(and (or (<= 44 main_i) (< 49 main_n)) (or (<= main_n 49) (<= main_i 44)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:58,159 INFO L273 TraceCheckUtils]: 23: Hoare triple {32203#(and (or (<= 44 main_i) (< 49 main_n)) (or (<= main_n 49) (<= main_i 44)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {32204#(and (or (<= main_n 49) (<= main_i 48)) (= 23 (select main_a (* 4 main_n))) (or (<= 48 main_i) (< 49 main_n)))} is VALID [2019-01-31 14:40:58,160 INFO L273 TraceCheckUtils]: 24: Hoare triple {32204#(and (or (<= main_n 49) (<= main_i 48)) (= 23 (select main_a (* 4 main_n))) (or (<= 48 main_i) (< 49 main_n)))} assume i <= n * 4; {32204#(and (or (<= main_n 49) (<= main_i 48)) (= 23 (select main_a (* 4 main_n))) (or (<= 48 main_i) (< 49 main_n)))} is VALID [2019-01-31 14:40:58,161 INFO L273 TraceCheckUtils]: 25: Hoare triple {32204#(and (or (<= main_n 49) (<= main_i 48)) (= 23 (select main_a (* 4 main_n))) (or (<= 48 main_i) (< 49 main_n)))} assume a[i] != 23;i := i + 4; {32205#(and (or (<= 52 main_i) (< 49 main_n)) (or (<= main_n 49) (<= main_i 52)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:58,162 INFO L273 TraceCheckUtils]: 26: Hoare triple {32205#(and (or (<= 52 main_i) (< 49 main_n)) (or (<= main_n 49) (<= main_i 52)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {32205#(and (or (<= 52 main_i) (< 49 main_n)) (or (<= main_n 49) (<= main_i 52)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:58,163 INFO L273 TraceCheckUtils]: 27: Hoare triple {32205#(and (or (<= 52 main_i) (< 49 main_n)) (or (<= main_n 49) (<= main_i 52)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {32206#(and (or (<= main_n 49) (<= main_i 56)) (or (<= 56 main_i) (< 49 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:58,164 INFO L273 TraceCheckUtils]: 28: Hoare triple {32206#(and (or (<= main_n 49) (<= main_i 56)) (or (<= 56 main_i) (< 49 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {32206#(and (or (<= main_n 49) (<= main_i 56)) (or (<= 56 main_i) (< 49 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:58,165 INFO L273 TraceCheckUtils]: 29: Hoare triple {32206#(and (or (<= main_n 49) (<= main_i 56)) (or (<= 56 main_i) (< 49 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {32207#(and (or (<= main_n 49) (<= main_i 60)) (or (<= 60 main_i) (< 49 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:58,165 INFO L273 TraceCheckUtils]: 30: Hoare triple {32207#(and (or (<= main_n 49) (<= main_i 60)) (or (<= 60 main_i) (< 49 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {32207#(and (or (<= main_n 49) (<= main_i 60)) (or (<= 60 main_i) (< 49 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:58,166 INFO L273 TraceCheckUtils]: 31: Hoare triple {32207#(and (or (<= main_n 49) (<= main_i 60)) (or (<= 60 main_i) (< 49 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {32208#(and (or (<= main_n 49) (<= main_i 64)) (or (<= 64 main_i) (< 49 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:58,167 INFO L273 TraceCheckUtils]: 32: Hoare triple {32208#(and (or (<= main_n 49) (<= main_i 64)) (or (<= 64 main_i) (< 49 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {32208#(and (or (<= main_n 49) (<= main_i 64)) (or (<= 64 main_i) (< 49 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:58,168 INFO L273 TraceCheckUtils]: 33: Hoare triple {32208#(and (or (<= main_n 49) (<= main_i 64)) (or (<= 64 main_i) (< 49 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {32209#(and (or (<= 68 main_i) (< 49 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 49) (<= main_i 68)))} is VALID [2019-01-31 14:40:58,169 INFO L273 TraceCheckUtils]: 34: Hoare triple {32209#(and (or (<= 68 main_i) (< 49 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 49) (<= main_i 68)))} assume i <= n * 4; {32209#(and (or (<= 68 main_i) (< 49 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 49) (<= main_i 68)))} is VALID [2019-01-31 14:40:58,170 INFO L273 TraceCheckUtils]: 35: Hoare triple {32209#(and (or (<= 68 main_i) (< 49 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 49) (<= main_i 68)))} assume a[i] != 23;i := i + 4; {32210#(and (or (<= main_n 49) (<= main_i 72)) (or (<= 72 main_i) (< 49 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:58,171 INFO L273 TraceCheckUtils]: 36: Hoare triple {32210#(and (or (<= main_n 49) (<= main_i 72)) (or (<= 72 main_i) (< 49 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {32210#(and (or (<= main_n 49) (<= main_i 72)) (or (<= 72 main_i) (< 49 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:58,172 INFO L273 TraceCheckUtils]: 37: Hoare triple {32210#(and (or (<= main_n 49) (<= main_i 72)) (or (<= 72 main_i) (< 49 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {32211#(and (or (<= 76 main_i) (< 49 main_n)) (or (<= main_i 76) (<= main_n 49)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:58,173 INFO L273 TraceCheckUtils]: 38: Hoare triple {32211#(and (or (<= 76 main_i) (< 49 main_n)) (or (<= main_i 76) (<= main_n 49)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {32211#(and (or (<= 76 main_i) (< 49 main_n)) (or (<= main_i 76) (<= main_n 49)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:58,174 INFO L273 TraceCheckUtils]: 39: Hoare triple {32211#(and (or (<= 76 main_i) (< 49 main_n)) (or (<= main_i 76) (<= main_n 49)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {32212#(and (or (<= 80 main_i) (< 49 main_n)) (or (<= main_n 49) (<= main_i 80)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:58,174 INFO L273 TraceCheckUtils]: 40: Hoare triple {32212#(and (or (<= 80 main_i) (< 49 main_n)) (or (<= main_n 49) (<= main_i 80)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {32212#(and (or (<= 80 main_i) (< 49 main_n)) (or (<= main_n 49) (<= main_i 80)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:58,175 INFO L273 TraceCheckUtils]: 41: Hoare triple {32212#(and (or (<= 80 main_i) (< 49 main_n)) (or (<= main_n 49) (<= main_i 80)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {32213#(and (or (<= main_n 49) (<= main_i 84)) (or (< 49 main_n) (<= 84 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:58,176 INFO L273 TraceCheckUtils]: 42: Hoare triple {32213#(and (or (<= main_n 49) (<= main_i 84)) (or (< 49 main_n) (<= 84 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {32213#(and (or (<= main_n 49) (<= main_i 84)) (or (< 49 main_n) (<= 84 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:58,177 INFO L273 TraceCheckUtils]: 43: Hoare triple {32213#(and (or (<= main_n 49) (<= main_i 84)) (or (< 49 main_n) (<= 84 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {32214#(and (or (<= 88 main_i) (< 49 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 49) (<= main_i 88)))} is VALID [2019-01-31 14:40:58,178 INFO L273 TraceCheckUtils]: 44: Hoare triple {32214#(and (or (<= 88 main_i) (< 49 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 49) (<= main_i 88)))} assume i <= n * 4; {32214#(and (or (<= 88 main_i) (< 49 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 49) (<= main_i 88)))} is VALID [2019-01-31 14:40:58,179 INFO L273 TraceCheckUtils]: 45: Hoare triple {32214#(and (or (<= 88 main_i) (< 49 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 49) (<= main_i 88)))} assume a[i] != 23;i := i + 4; {32215#(and (or (<= 92 main_i) (< 49 main_n)) (or (<= main_i 92) (<= main_n 49)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:58,180 INFO L273 TraceCheckUtils]: 46: Hoare triple {32215#(and (or (<= 92 main_i) (< 49 main_n)) (or (<= main_i 92) (<= main_n 49)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {32215#(and (or (<= 92 main_i) (< 49 main_n)) (or (<= main_i 92) (<= main_n 49)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:58,181 INFO L273 TraceCheckUtils]: 47: Hoare triple {32215#(and (or (<= 92 main_i) (< 49 main_n)) (or (<= main_i 92) (<= main_n 49)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {32216#(and (or (<= 96 main_i) (< 49 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 96) (<= main_n 49)))} is VALID [2019-01-31 14:40:58,181 INFO L273 TraceCheckUtils]: 48: Hoare triple {32216#(and (or (<= 96 main_i) (< 49 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 96) (<= main_n 49)))} assume i <= n * 4; {32216#(and (or (<= 96 main_i) (< 49 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 96) (<= main_n 49)))} is VALID [2019-01-31 14:40:58,182 INFO L273 TraceCheckUtils]: 49: Hoare triple {32216#(and (or (<= 96 main_i) (< 49 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 96) (<= main_n 49)))} assume a[i] != 23;i := i + 4; {32217#(and (or (<= 100 main_i) (< 49 main_n)) (or (<= main_n 49) (<= main_i 100)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:58,183 INFO L273 TraceCheckUtils]: 50: Hoare triple {32217#(and (or (<= 100 main_i) (< 49 main_n)) (or (<= main_n 49) (<= main_i 100)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {32217#(and (or (<= 100 main_i) (< 49 main_n)) (or (<= main_n 49) (<= main_i 100)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:58,184 INFO L273 TraceCheckUtils]: 51: Hoare triple {32217#(and (or (<= 100 main_i) (< 49 main_n)) (or (<= main_n 49) (<= main_i 100)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {32218#(and (or (<= main_i 104) (<= main_n 49)) (or (<= 104 main_i) (< 49 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:58,185 INFO L273 TraceCheckUtils]: 52: Hoare triple {32218#(and (or (<= main_i 104) (<= main_n 49)) (or (<= 104 main_i) (< 49 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {32218#(and (or (<= main_i 104) (<= main_n 49)) (or (<= 104 main_i) (< 49 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:58,186 INFO L273 TraceCheckUtils]: 53: Hoare triple {32218#(and (or (<= main_i 104) (<= main_n 49)) (or (<= 104 main_i) (< 49 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {32219#(and (or (<= main_n 49) (<= main_i 108)) (or (<= 108 main_i) (< 49 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:58,187 INFO L273 TraceCheckUtils]: 54: Hoare triple {32219#(and (or (<= main_n 49) (<= main_i 108)) (or (<= 108 main_i) (< 49 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {32219#(and (or (<= main_n 49) (<= main_i 108)) (or (<= 108 main_i) (< 49 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:58,188 INFO L273 TraceCheckUtils]: 55: Hoare triple {32219#(and (or (<= main_n 49) (<= main_i 108)) (or (<= 108 main_i) (< 49 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {32220#(and (or (< 49 main_n) (<= 112 main_i)) (or (<= main_n 49) (<= main_i 112)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:58,189 INFO L273 TraceCheckUtils]: 56: Hoare triple {32220#(and (or (< 49 main_n) (<= 112 main_i)) (or (<= main_n 49) (<= main_i 112)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {32220#(and (or (< 49 main_n) (<= 112 main_i)) (or (<= main_n 49) (<= main_i 112)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:58,190 INFO L273 TraceCheckUtils]: 57: Hoare triple {32220#(and (or (< 49 main_n) (<= 112 main_i)) (or (<= main_n 49) (<= main_i 112)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {32221#(and (or (<= 116 main_i) (< 49 main_n)) (or (<= main_n 49) (<= main_i 116)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:58,190 INFO L273 TraceCheckUtils]: 58: Hoare triple {32221#(and (or (<= 116 main_i) (< 49 main_n)) (or (<= main_n 49) (<= main_i 116)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {32221#(and (or (<= 116 main_i) (< 49 main_n)) (or (<= main_n 49) (<= main_i 116)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:58,191 INFO L273 TraceCheckUtils]: 59: Hoare triple {32221#(and (or (<= 116 main_i) (< 49 main_n)) (or (<= main_n 49) (<= main_i 116)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {32222#(and (or (<= 120 main_i) (< 49 main_n)) (or (<= main_n 49) (<= main_i 120)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:58,192 INFO L273 TraceCheckUtils]: 60: Hoare triple {32222#(and (or (<= 120 main_i) (< 49 main_n)) (or (<= main_n 49) (<= main_i 120)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {32222#(and (or (<= 120 main_i) (< 49 main_n)) (or (<= main_n 49) (<= main_i 120)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:58,193 INFO L273 TraceCheckUtils]: 61: Hoare triple {32222#(and (or (<= 120 main_i) (< 49 main_n)) (or (<= main_n 49) (<= main_i 120)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {32223#(and (or (<= 124 main_i) (< 49 main_n)) (or (<= main_n 49) (<= main_i 124)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:58,194 INFO L273 TraceCheckUtils]: 62: Hoare triple {32223#(and (or (<= 124 main_i) (< 49 main_n)) (or (<= main_n 49) (<= main_i 124)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {32223#(and (or (<= 124 main_i) (< 49 main_n)) (or (<= main_n 49) (<= main_i 124)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:58,195 INFO L273 TraceCheckUtils]: 63: Hoare triple {32223#(and (or (<= 124 main_i) (< 49 main_n)) (or (<= main_n 49) (<= main_i 124)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {32224#(and (or (<= main_n 49) (<= main_i 128)) (or (<= 128 main_i) (< 49 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:58,196 INFO L273 TraceCheckUtils]: 64: Hoare triple {32224#(and (or (<= main_n 49) (<= main_i 128)) (or (<= 128 main_i) (< 49 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {32224#(and (or (<= main_n 49) (<= main_i 128)) (or (<= 128 main_i) (< 49 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:58,197 INFO L273 TraceCheckUtils]: 65: Hoare triple {32224#(and (or (<= main_n 49) (<= main_i 128)) (or (<= 128 main_i) (< 49 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {32225#(and (or (<= 132 main_i) (< 49 main_n)) (or (<= main_n 49) (<= main_i 132)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:58,197 INFO L273 TraceCheckUtils]: 66: Hoare triple {32225#(and (or (<= 132 main_i) (< 49 main_n)) (or (<= main_n 49) (<= main_i 132)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {32225#(and (or (<= 132 main_i) (< 49 main_n)) (or (<= main_n 49) (<= main_i 132)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:58,198 INFO L273 TraceCheckUtils]: 67: Hoare triple {32225#(and (or (<= 132 main_i) (< 49 main_n)) (or (<= main_n 49) (<= main_i 132)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {32226#(and (or (<= main_n 49) (<= main_i 136)) (or (<= 136 main_i) (< 49 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:58,199 INFO L273 TraceCheckUtils]: 68: Hoare triple {32226#(and (or (<= main_n 49) (<= main_i 136)) (or (<= 136 main_i) (< 49 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {32226#(and (or (<= main_n 49) (<= main_i 136)) (or (<= 136 main_i) (< 49 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:58,200 INFO L273 TraceCheckUtils]: 69: Hoare triple {32226#(and (or (<= main_n 49) (<= main_i 136)) (or (<= 136 main_i) (< 49 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {32227#(and (or (<= main_n 49) (<= main_i 140)) (or (< 49 main_n) (<= 140 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:58,201 INFO L273 TraceCheckUtils]: 70: Hoare triple {32227#(and (or (<= main_n 49) (<= main_i 140)) (or (< 49 main_n) (<= 140 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {32227#(and (or (<= main_n 49) (<= main_i 140)) (or (< 49 main_n) (<= 140 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:58,202 INFO L273 TraceCheckUtils]: 71: Hoare triple {32227#(and (or (<= main_n 49) (<= main_i 140)) (or (< 49 main_n) (<= 140 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {32228#(and (or (<= main_n 49) (<= main_i 144)) (or (<= 144 main_i) (< 49 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:58,203 INFO L273 TraceCheckUtils]: 72: Hoare triple {32228#(and (or (<= main_n 49) (<= main_i 144)) (or (<= 144 main_i) (< 49 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {32228#(and (or (<= main_n 49) (<= main_i 144)) (or (<= 144 main_i) (< 49 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:58,204 INFO L273 TraceCheckUtils]: 73: Hoare triple {32228#(and (or (<= main_n 49) (<= main_i 144)) (or (<= 144 main_i) (< 49 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {32229#(and (or (<= 148 main_i) (< 49 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 49) (<= main_i 148)))} is VALID [2019-01-31 14:40:58,205 INFO L273 TraceCheckUtils]: 74: Hoare triple {32229#(and (or (<= 148 main_i) (< 49 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 49) (<= main_i 148)))} assume i <= n * 4; {32229#(and (or (<= 148 main_i) (< 49 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 49) (<= main_i 148)))} is VALID [2019-01-31 14:40:58,206 INFO L273 TraceCheckUtils]: 75: Hoare triple {32229#(and (or (<= 148 main_i) (< 49 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 49) (<= main_i 148)))} assume a[i] != 23;i := i + 4; {32230#(and (or (<= 152 main_i) (< 49 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 49) (<= main_i 152)))} is VALID [2019-01-31 14:40:58,206 INFO L273 TraceCheckUtils]: 76: Hoare triple {32230#(and (or (<= 152 main_i) (< 49 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 49) (<= main_i 152)))} assume i <= n * 4; {32230#(and (or (<= 152 main_i) (< 49 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 49) (<= main_i 152)))} is VALID [2019-01-31 14:40:58,207 INFO L273 TraceCheckUtils]: 77: Hoare triple {32230#(and (or (<= 152 main_i) (< 49 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 49) (<= main_i 152)))} assume a[i] != 23;i := i + 4; {32231#(and (or (<= main_n 49) (<= main_i 156)) (= 23 (select main_a (* 4 main_n))) (or (<= 156 main_i) (< 49 main_n)))} is VALID [2019-01-31 14:40:58,208 INFO L273 TraceCheckUtils]: 78: Hoare triple {32231#(and (or (<= main_n 49) (<= main_i 156)) (= 23 (select main_a (* 4 main_n))) (or (<= 156 main_i) (< 49 main_n)))} assume i <= n * 4; {32231#(and (or (<= main_n 49) (<= main_i 156)) (= 23 (select main_a (* 4 main_n))) (or (<= 156 main_i) (< 49 main_n)))} is VALID [2019-01-31 14:40:58,209 INFO L273 TraceCheckUtils]: 79: Hoare triple {32231#(and (or (<= main_n 49) (<= main_i 156)) (= 23 (select main_a (* 4 main_n))) (or (<= 156 main_i) (< 49 main_n)))} assume a[i] != 23;i := i + 4; {32232#(and (or (<= main_n 49) (<= main_i 160)) (or (<= 160 main_i) (< 49 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:58,210 INFO L273 TraceCheckUtils]: 80: Hoare triple {32232#(and (or (<= main_n 49) (<= main_i 160)) (or (<= 160 main_i) (< 49 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {32232#(and (or (<= main_n 49) (<= main_i 160)) (or (<= 160 main_i) (< 49 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:58,211 INFO L273 TraceCheckUtils]: 81: Hoare triple {32232#(and (or (<= main_n 49) (<= main_i 160)) (or (<= 160 main_i) (< 49 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {32233#(and (or (<= main_n 49) (<= main_i 164)) (or (<= 164 main_i) (< 49 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:58,212 INFO L273 TraceCheckUtils]: 82: Hoare triple {32233#(and (or (<= main_n 49) (<= main_i 164)) (or (<= 164 main_i) (< 49 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {32233#(and (or (<= main_n 49) (<= main_i 164)) (or (<= 164 main_i) (< 49 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:58,213 INFO L273 TraceCheckUtils]: 83: Hoare triple {32233#(and (or (<= main_n 49) (<= main_i 164)) (or (<= 164 main_i) (< 49 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {32234#(and (or (<= main_n 49) (<= main_i 168)) (= 23 (select main_a (* 4 main_n))) (or (<= 168 main_i) (< 49 main_n)))} is VALID [2019-01-31 14:40:58,213 INFO L273 TraceCheckUtils]: 84: Hoare triple {32234#(and (or (<= main_n 49) (<= main_i 168)) (= 23 (select main_a (* 4 main_n))) (or (<= 168 main_i) (< 49 main_n)))} assume i <= n * 4; {32234#(and (or (<= main_n 49) (<= main_i 168)) (= 23 (select main_a (* 4 main_n))) (or (<= 168 main_i) (< 49 main_n)))} is VALID [2019-01-31 14:40:58,214 INFO L273 TraceCheckUtils]: 85: Hoare triple {32234#(and (or (<= main_n 49) (<= main_i 168)) (= 23 (select main_a (* 4 main_n))) (or (<= 168 main_i) (< 49 main_n)))} assume a[i] != 23;i := i + 4; {32235#(and (or (<= main_n 49) (<= main_i 172)) (or (<= 172 main_i) (< 49 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:58,215 INFO L273 TraceCheckUtils]: 86: Hoare triple {32235#(and (or (<= main_n 49) (<= main_i 172)) (or (<= 172 main_i) (< 49 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {32235#(and (or (<= main_n 49) (<= main_i 172)) (or (<= 172 main_i) (< 49 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:58,216 INFO L273 TraceCheckUtils]: 87: Hoare triple {32235#(and (or (<= main_n 49) (<= main_i 172)) (or (<= 172 main_i) (< 49 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {32236#(and (or (<= 176 main_i) (< 49 main_n)) (or (<= main_n 49) (<= main_i 176)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:58,217 INFO L273 TraceCheckUtils]: 88: Hoare triple {32236#(and (or (<= 176 main_i) (< 49 main_n)) (or (<= main_n 49) (<= main_i 176)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {32236#(and (or (<= 176 main_i) (< 49 main_n)) (or (<= main_n 49) (<= main_i 176)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:58,218 INFO L273 TraceCheckUtils]: 89: Hoare triple {32236#(and (or (<= 176 main_i) (< 49 main_n)) (or (<= main_n 49) (<= main_i 176)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {32237#(and (or (<= 180 main_i) (< 49 main_n)) (or (<= main_n 49) (<= main_i 180)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:58,219 INFO L273 TraceCheckUtils]: 90: Hoare triple {32237#(and (or (<= 180 main_i) (< 49 main_n)) (or (<= main_n 49) (<= main_i 180)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {32237#(and (or (<= 180 main_i) (< 49 main_n)) (or (<= main_n 49) (<= main_i 180)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:58,220 INFO L273 TraceCheckUtils]: 91: Hoare triple {32237#(and (or (<= 180 main_i) (< 49 main_n)) (or (<= main_n 49) (<= main_i 180)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {32238#(and (or (< 49 main_n) (<= 184 main_i)) (or (<= main_n 49) (<= main_i 184)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:58,220 INFO L273 TraceCheckUtils]: 92: Hoare triple {32238#(and (or (< 49 main_n) (<= 184 main_i)) (or (<= main_n 49) (<= main_i 184)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {32238#(and (or (< 49 main_n) (<= 184 main_i)) (or (<= main_n 49) (<= main_i 184)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:58,221 INFO L273 TraceCheckUtils]: 93: Hoare triple {32238#(and (or (< 49 main_n) (<= 184 main_i)) (or (<= main_n 49) (<= main_i 184)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {32239#(and (or (< 49 main_n) (<= 188 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 49) (<= main_i 188)))} is VALID [2019-01-31 14:40:58,222 INFO L273 TraceCheckUtils]: 94: Hoare triple {32239#(and (or (< 49 main_n) (<= 188 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 49) (<= main_i 188)))} assume i <= n * 4; {32239#(and (or (< 49 main_n) (<= 188 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 49) (<= main_i 188)))} is VALID [2019-01-31 14:40:58,223 INFO L273 TraceCheckUtils]: 95: Hoare triple {32239#(and (or (< 49 main_n) (<= 188 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 49) (<= main_i 188)))} assume a[i] != 23;i := i + 4; {32240#(and (or (<= 192 main_i) (< 49 main_n)) (or (<= main_n 49) (<= main_i 192)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:58,224 INFO L273 TraceCheckUtils]: 96: Hoare triple {32240#(and (or (<= 192 main_i) (< 49 main_n)) (or (<= main_n 49) (<= main_i 192)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {32240#(and (or (<= 192 main_i) (< 49 main_n)) (or (<= main_n 49) (<= main_i 192)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:40:58,225 INFO L273 TraceCheckUtils]: 97: Hoare triple {32240#(and (or (<= 192 main_i) (< 49 main_n)) (or (<= main_n 49) (<= main_i 192)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {32241#(and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (or (= (* 4 main_n) main_i) (and (or (<= main_n 49) (<= main_i 196)) (or (<= (* 4 main_n) main_i) (< 49 main_n)))))} is VALID [2019-01-31 14:40:58,226 INFO L273 TraceCheckUtils]: 98: Hoare triple {32241#(and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (or (= (* 4 main_n) main_i) (and (or (<= main_n 49) (<= main_i 196)) (or (<= (* 4 main_n) main_i) (< 49 main_n)))))} assume i <= n * 4; {32242#(and (or (= (* 4 main_n) main_i) (and (< 49 main_n) (<= main_i 196))) (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))))} is VALID [2019-01-31 14:40:58,227 INFO L273 TraceCheckUtils]: 99: Hoare triple {32242#(and (or (= (* 4 main_n) main_i) (and (< 49 main_n) (<= main_i 196))) (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))))} assume a[i] != 23;i := i + 4; {32243#(and (<= main_i 200) (< 49 main_n))} is VALID [2019-01-31 14:40:58,228 INFO L273 TraceCheckUtils]: 100: Hoare triple {32243#(and (<= main_i 200) (< 49 main_n))} assume !(i <= n * 4); {32191#false} is VALID [2019-01-31 14:40:58,273 INFO L134 CoverageAnalysis]: Checked inductivity of 2450 backedges. 0 proven. 2450 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-31 14:40:58,273 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-31 14:40:58,273 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-01-31 14:40:58,274 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-01-31 14:40:58,274 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-01-31 14:40:58,274 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-31 14:40:58,274 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 14:40:58,282 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-31 14:40:58,282 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2019-01-31 14:40:58,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-31 14:40:58,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-31 14:40:58,343 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-31 14:40:58,354 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 14:40:58,357 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-01-31 14:40:58,365 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-31 14:40:58,366 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2019-01-31 14:40:58,367 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-01-31 14:40:58,367 WARN L398 uantifierElimination]: Input elimination task: ∃ [v_main_a_53]. (and (= main_a (store v_main_a_53 (* 4 main_n) 23)) (= main_i 0)) [2019-01-31 14:40:58,367 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2019-01-31 14:41:02,531 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2019-01-31 14:41:02,533 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-01-31 14:41:02,538 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-31 14:41:02,539 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2019-01-31 14:41:02,541 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-01-31 14:41:02,541 WARN L398 uantifierElimination]: Input elimination task: ∃ [main_a]. (let ((.cse0 (* 4 main_n))) (and (not (= 23 (select main_a 196))) (<= 196 .cse0) (<= main_i 200) (= 23 (select main_a .cse0)))) [2019-01-31 14:41:02,542 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (let ((.cse0 (* 4 main_n))) (and (not (= 196 .cse0)) (<= 196 .cse0) (<= main_i 200))) [2019-01-31 14:41:02,606 INFO L273 TraceCheckUtils]: 0: Hoare triple {32190#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {32247#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:41:02,606 INFO L273 TraceCheckUtils]: 1: Hoare triple {32247#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {32251#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2019-01-31 14:41:02,607 INFO L273 TraceCheckUtils]: 2: Hoare triple {32251#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume i <= n * 4; {32251#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2019-01-31 14:41:02,607 INFO L273 TraceCheckUtils]: 3: Hoare triple {32251#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume a[i] != 23;i := i + 4; {32258#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:41:02,608 INFO L273 TraceCheckUtils]: 4: Hoare triple {32258#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {32258#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:41:02,609 INFO L273 TraceCheckUtils]: 5: Hoare triple {32258#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {32265#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2019-01-31 14:41:02,609 INFO L273 TraceCheckUtils]: 6: Hoare triple {32265#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume i <= n * 4; {32265#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2019-01-31 14:41:02,610 INFO L273 TraceCheckUtils]: 7: Hoare triple {32265#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume a[i] != 23;i := i + 4; {32272#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:41:02,611 INFO L273 TraceCheckUtils]: 8: Hoare triple {32272#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {32272#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:41:02,611 INFO L273 TraceCheckUtils]: 9: Hoare triple {32272#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {32279#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:41:02,612 INFO L273 TraceCheckUtils]: 10: Hoare triple {32279#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {32279#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:41:02,613 INFO L273 TraceCheckUtils]: 11: Hoare triple {32279#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {32286#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:41:02,613 INFO L273 TraceCheckUtils]: 12: Hoare triple {32286#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {32286#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:41:02,614 INFO L273 TraceCheckUtils]: 13: Hoare triple {32286#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {32293#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:41:02,615 INFO L273 TraceCheckUtils]: 14: Hoare triple {32293#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {32293#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:41:02,615 INFO L273 TraceCheckUtils]: 15: Hoare triple {32293#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {32300#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:41:02,616 INFO L273 TraceCheckUtils]: 16: Hoare triple {32300#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {32300#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:41:02,617 INFO L273 TraceCheckUtils]: 17: Hoare triple {32300#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {32307#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:41:02,617 INFO L273 TraceCheckUtils]: 18: Hoare triple {32307#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {32307#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:41:02,618 INFO L273 TraceCheckUtils]: 19: Hoare triple {32307#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {32314#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:41:02,619 INFO L273 TraceCheckUtils]: 20: Hoare triple {32314#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {32314#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:41:02,619 INFO L273 TraceCheckUtils]: 21: Hoare triple {32314#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {32321#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:41:02,620 INFO L273 TraceCheckUtils]: 22: Hoare triple {32321#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {32321#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:41:02,621 INFO L273 TraceCheckUtils]: 23: Hoare triple {32321#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {32328#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:41:02,621 INFO L273 TraceCheckUtils]: 24: Hoare triple {32328#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {32328#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:41:02,622 INFO L273 TraceCheckUtils]: 25: Hoare triple {32328#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {32335#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:41:02,623 INFO L273 TraceCheckUtils]: 26: Hoare triple {32335#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {32335#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:41:02,623 INFO L273 TraceCheckUtils]: 27: Hoare triple {32335#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {32342#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:41:02,624 INFO L273 TraceCheckUtils]: 28: Hoare triple {32342#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {32342#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:41:02,625 INFO L273 TraceCheckUtils]: 29: Hoare triple {32342#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {32349#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:41:02,625 INFO L273 TraceCheckUtils]: 30: Hoare triple {32349#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {32349#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:41:02,626 INFO L273 TraceCheckUtils]: 31: Hoare triple {32349#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {32356#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:41:02,627 INFO L273 TraceCheckUtils]: 32: Hoare triple {32356#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {32356#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:41:02,627 INFO L273 TraceCheckUtils]: 33: Hoare triple {32356#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {32363#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:41:02,628 INFO L273 TraceCheckUtils]: 34: Hoare triple {32363#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {32363#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:41:02,629 INFO L273 TraceCheckUtils]: 35: Hoare triple {32363#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {32370#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:41:02,629 INFO L273 TraceCheckUtils]: 36: Hoare triple {32370#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {32370#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:41:02,630 INFO L273 TraceCheckUtils]: 37: Hoare triple {32370#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {32377#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:41:02,631 INFO L273 TraceCheckUtils]: 38: Hoare triple {32377#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {32377#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:41:02,631 INFO L273 TraceCheckUtils]: 39: Hoare triple {32377#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {32384#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} is VALID [2019-01-31 14:41:02,632 INFO L273 TraceCheckUtils]: 40: Hoare triple {32384#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} assume i <= n * 4; {32384#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} is VALID [2019-01-31 14:41:02,633 INFO L273 TraceCheckUtils]: 41: Hoare triple {32384#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} assume a[i] != 23;i := i + 4; {32391#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:41:02,633 INFO L273 TraceCheckUtils]: 42: Hoare triple {32391#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {32391#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:41:02,634 INFO L273 TraceCheckUtils]: 43: Hoare triple {32391#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {32398#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:41:02,635 INFO L273 TraceCheckUtils]: 44: Hoare triple {32398#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {32398#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:41:02,636 INFO L273 TraceCheckUtils]: 45: Hoare triple {32398#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {32405#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:41:02,636 INFO L273 TraceCheckUtils]: 46: Hoare triple {32405#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {32405#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:41:02,637 INFO L273 TraceCheckUtils]: 47: Hoare triple {32405#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {32412#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:41:02,638 INFO L273 TraceCheckUtils]: 48: Hoare triple {32412#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {32412#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:41:02,638 INFO L273 TraceCheckUtils]: 49: Hoare triple {32412#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {32419#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:41:02,639 INFO L273 TraceCheckUtils]: 50: Hoare triple {32419#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {32419#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:41:02,640 INFO L273 TraceCheckUtils]: 51: Hoare triple {32419#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {32426#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:41:02,640 INFO L273 TraceCheckUtils]: 52: Hoare triple {32426#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {32426#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:41:02,641 INFO L273 TraceCheckUtils]: 53: Hoare triple {32426#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {32433#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:41:02,642 INFO L273 TraceCheckUtils]: 54: Hoare triple {32433#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {32433#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:41:02,642 INFO L273 TraceCheckUtils]: 55: Hoare triple {32433#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {32440#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:41:02,643 INFO L273 TraceCheckUtils]: 56: Hoare triple {32440#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {32440#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:41:02,644 INFO L273 TraceCheckUtils]: 57: Hoare triple {32440#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {32447#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:41:02,644 INFO L273 TraceCheckUtils]: 58: Hoare triple {32447#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {32447#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:41:02,645 INFO L273 TraceCheckUtils]: 59: Hoare triple {32447#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {32454#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:41:02,646 INFO L273 TraceCheckUtils]: 60: Hoare triple {32454#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {32454#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:41:02,646 INFO L273 TraceCheckUtils]: 61: Hoare triple {32454#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {32461#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:41:02,647 INFO L273 TraceCheckUtils]: 62: Hoare triple {32461#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {32461#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:41:02,648 INFO L273 TraceCheckUtils]: 63: Hoare triple {32461#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {32468#(and (= main_i 128) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:41:02,648 INFO L273 TraceCheckUtils]: 64: Hoare triple {32468#(and (= main_i 128) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {32468#(and (= main_i 128) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:41:02,649 INFO L273 TraceCheckUtils]: 65: Hoare triple {32468#(and (= main_i 128) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {32475#(and (= main_i 132) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:41:02,650 INFO L273 TraceCheckUtils]: 66: Hoare triple {32475#(and (= main_i 132) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {32475#(and (= main_i 132) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:41:02,651 INFO L273 TraceCheckUtils]: 67: Hoare triple {32475#(and (= main_i 132) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {32482#(and (= main_i 136) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:41:02,651 INFO L273 TraceCheckUtils]: 68: Hoare triple {32482#(and (= main_i 136) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {32482#(and (= main_i 136) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:41:02,652 INFO L273 TraceCheckUtils]: 69: Hoare triple {32482#(and (= main_i 136) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {32489#(and (= 23 (select main_a (* 4 main_n))) (= main_i 140))} is VALID [2019-01-31 14:41:02,653 INFO L273 TraceCheckUtils]: 70: Hoare triple {32489#(and (= 23 (select main_a (* 4 main_n))) (= main_i 140))} assume i <= n * 4; {32489#(and (= 23 (select main_a (* 4 main_n))) (= main_i 140))} is VALID [2019-01-31 14:41:02,653 INFO L273 TraceCheckUtils]: 71: Hoare triple {32489#(and (= 23 (select main_a (* 4 main_n))) (= main_i 140))} assume a[i] != 23;i := i + 4; {32496#(and (= main_i 144) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:41:02,654 INFO L273 TraceCheckUtils]: 72: Hoare triple {32496#(and (= main_i 144) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {32496#(and (= main_i 144) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:41:02,655 INFO L273 TraceCheckUtils]: 73: Hoare triple {32496#(and (= main_i 144) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {32503#(and (= main_i 148) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:41:02,655 INFO L273 TraceCheckUtils]: 74: Hoare triple {32503#(and (= main_i 148) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {32503#(and (= main_i 148) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:41:02,656 INFO L273 TraceCheckUtils]: 75: Hoare triple {32503#(and (= main_i 148) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {32510#(and (= main_i 152) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:41:02,657 INFO L273 TraceCheckUtils]: 76: Hoare triple {32510#(and (= main_i 152) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {32510#(and (= main_i 152) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:41:02,657 INFO L273 TraceCheckUtils]: 77: Hoare triple {32510#(and (= main_i 152) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {32517#(and (= main_i 156) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:41:02,658 INFO L273 TraceCheckUtils]: 78: Hoare triple {32517#(and (= main_i 156) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {32517#(and (= main_i 156) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:41:02,659 INFO L273 TraceCheckUtils]: 79: Hoare triple {32517#(and (= main_i 156) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {32524#(and (= main_i 160) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:41:02,659 INFO L273 TraceCheckUtils]: 80: Hoare triple {32524#(and (= main_i 160) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {32524#(and (= main_i 160) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:41:02,660 INFO L273 TraceCheckUtils]: 81: Hoare triple {32524#(and (= main_i 160) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {32531#(and (= 23 (select main_a (* 4 main_n))) (= main_i 164))} is VALID [2019-01-31 14:41:02,661 INFO L273 TraceCheckUtils]: 82: Hoare triple {32531#(and (= 23 (select main_a (* 4 main_n))) (= main_i 164))} assume i <= n * 4; {32531#(and (= 23 (select main_a (* 4 main_n))) (= main_i 164))} is VALID [2019-01-31 14:41:02,662 INFO L273 TraceCheckUtils]: 83: Hoare triple {32531#(and (= 23 (select main_a (* 4 main_n))) (= main_i 164))} assume a[i] != 23;i := i + 4; {32538#(and (= main_i 168) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:41:02,662 INFO L273 TraceCheckUtils]: 84: Hoare triple {32538#(and (= main_i 168) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {32538#(and (= main_i 168) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:41:02,663 INFO L273 TraceCheckUtils]: 85: Hoare triple {32538#(and (= main_i 168) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {32545#(and (= main_i 172) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:41:02,664 INFO L273 TraceCheckUtils]: 86: Hoare triple {32545#(and (= main_i 172) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {32545#(and (= main_i 172) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:41:02,664 INFO L273 TraceCheckUtils]: 87: Hoare triple {32545#(and (= main_i 172) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {32552#(and (= main_i 176) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:41:02,665 INFO L273 TraceCheckUtils]: 88: Hoare triple {32552#(and (= main_i 176) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {32552#(and (= main_i 176) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:41:02,666 INFO L273 TraceCheckUtils]: 89: Hoare triple {32552#(and (= main_i 176) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {32559#(and (= main_i 180) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:41:02,666 INFO L273 TraceCheckUtils]: 90: Hoare triple {32559#(and (= main_i 180) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {32559#(and (= main_i 180) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:41:02,667 INFO L273 TraceCheckUtils]: 91: Hoare triple {32559#(and (= main_i 180) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {32566#(and (= main_i 184) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:41:02,668 INFO L273 TraceCheckUtils]: 92: Hoare triple {32566#(and (= main_i 184) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {32566#(and (= main_i 184) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:41:02,668 INFO L273 TraceCheckUtils]: 93: Hoare triple {32566#(and (= main_i 184) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {32573#(and (= main_i 188) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:41:02,669 INFO L273 TraceCheckUtils]: 94: Hoare triple {32573#(and (= main_i 188) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {32573#(and (= main_i 188) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:41:02,670 INFO L273 TraceCheckUtils]: 95: Hoare triple {32573#(and (= main_i 188) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {32580#(and (= main_i 192) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:41:02,670 INFO L273 TraceCheckUtils]: 96: Hoare triple {32580#(and (= main_i 192) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {32580#(and (= main_i 192) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:41:02,671 INFO L273 TraceCheckUtils]: 97: Hoare triple {32580#(and (= main_i 192) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {32587#(and (= main_i 196) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:41:02,672 INFO L273 TraceCheckUtils]: 98: Hoare triple {32587#(and (= main_i 196) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {32591#(and (= main_i 196) (<= main_i (* 4 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:41:02,672 INFO L273 TraceCheckUtils]: 99: Hoare triple {32591#(and (= main_i 196) (<= main_i (* 4 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {32243#(and (<= main_i 200) (< 49 main_n))} is VALID [2019-01-31 14:41:02,673 INFO L273 TraceCheckUtils]: 100: Hoare triple {32243#(and (<= main_i 200) (< 49 main_n))} assume !(i <= n * 4); {32191#false} is VALID [2019-01-31 14:41:02,699 INFO L134 CoverageAnalysis]: Checked inductivity of 2450 backedges. 0 proven. 2450 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-31 14:41:02,700 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2019-01-31 14:41:09,828 INFO L273 TraceCheckUtils]: 100: Hoare triple {32598#(<= main_i (* 4 main_n))} assume !(i <= n * 4); {32191#false} is VALID [2019-01-31 14:41:09,828 INFO L273 TraceCheckUtils]: 99: Hoare triple {32602#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} assume a[i] != 23;i := i + 4; {32598#(<= main_i (* 4 main_n))} is VALID [2019-01-31 14:41:09,829 INFO L273 TraceCheckUtils]: 98: Hoare triple {32606#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} assume i <= n * 4; {32602#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} is VALID [2019-01-31 14:41:09,830 INFO L273 TraceCheckUtils]: 97: Hoare triple {32610#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume a[i] != 23;i := i + 4; {32606#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} is VALID [2019-01-31 14:41:09,830 INFO L273 TraceCheckUtils]: 96: Hoare triple {32610#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume i <= n * 4; {32610#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2019-01-31 14:41:09,831 INFO L273 TraceCheckUtils]: 95: Hoare triple {32617#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume a[i] != 23;i := i + 4; {32610#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2019-01-31 14:41:09,832 INFO L273 TraceCheckUtils]: 94: Hoare triple {32617#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume i <= n * 4; {32617#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2019-01-31 14:41:09,833 INFO L273 TraceCheckUtils]: 93: Hoare triple {32624#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume a[i] != 23;i := i + 4; {32617#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2019-01-31 14:41:09,833 INFO L273 TraceCheckUtils]: 92: Hoare triple {32624#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume i <= n * 4; {32624#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2019-01-31 14:41:09,834 INFO L273 TraceCheckUtils]: 91: Hoare triple {32631#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume a[i] != 23;i := i + 4; {32624#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2019-01-31 14:41:09,835 INFO L273 TraceCheckUtils]: 90: Hoare triple {32631#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume i <= n * 4; {32631#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2019-01-31 14:41:09,836 INFO L273 TraceCheckUtils]: 89: Hoare triple {32638#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {32631#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2019-01-31 14:41:09,836 INFO L273 TraceCheckUtils]: 88: Hoare triple {32638#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume i <= n * 4; {32638#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2019-01-31 14:41:09,837 INFO L273 TraceCheckUtils]: 87: Hoare triple {32645#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume a[i] != 23;i := i + 4; {32638#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2019-01-31 14:41:09,838 INFO L273 TraceCheckUtils]: 86: Hoare triple {32645#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume i <= n * 4; {32645#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2019-01-31 14:41:09,839 INFO L273 TraceCheckUtils]: 85: Hoare triple {32652#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {32645#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2019-01-31 14:41:09,839 INFO L273 TraceCheckUtils]: 84: Hoare triple {32652#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume i <= n * 4; {32652#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2019-01-31 14:41:09,841 INFO L273 TraceCheckUtils]: 83: Hoare triple {32659#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {32652#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2019-01-31 14:41:09,841 INFO L273 TraceCheckUtils]: 82: Hoare triple {32659#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume i <= n * 4; {32659#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2019-01-31 14:41:09,842 INFO L273 TraceCheckUtils]: 81: Hoare triple {32666#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {32659#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2019-01-31 14:41:09,843 INFO L273 TraceCheckUtils]: 80: Hoare triple {32666#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume i <= n * 4; {32666#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2019-01-31 14:41:09,844 INFO L273 TraceCheckUtils]: 79: Hoare triple {32673#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} assume a[i] != 23;i := i + 4; {32666#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2019-01-31 14:41:09,844 INFO L273 TraceCheckUtils]: 78: Hoare triple {32673#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} assume i <= n * 4; {32673#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} is VALID [2019-01-31 14:41:09,845 INFO L273 TraceCheckUtils]: 77: Hoare triple {32680#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {32673#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} is VALID [2019-01-31 14:41:09,846 INFO L273 TraceCheckUtils]: 76: Hoare triple {32680#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} assume i <= n * 4; {32680#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} is VALID [2019-01-31 14:41:09,847 INFO L273 TraceCheckUtils]: 75: Hoare triple {32687#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {32680#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} is VALID [2019-01-31 14:41:09,847 INFO L273 TraceCheckUtils]: 74: Hoare triple {32687#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} assume i <= n * 4; {32687#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} is VALID [2019-01-31 14:41:09,849 INFO L273 TraceCheckUtils]: 73: Hoare triple {32694#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} assume a[i] != 23;i := i + 4; {32687#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} is VALID [2019-01-31 14:41:09,849 INFO L273 TraceCheckUtils]: 72: Hoare triple {32694#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} assume i <= n * 4; {32694#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} is VALID [2019-01-31 14:41:09,850 INFO L273 TraceCheckUtils]: 71: Hoare triple {32701#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {32694#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} is VALID [2019-01-31 14:41:09,851 INFO L273 TraceCheckUtils]: 70: Hoare triple {32701#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} assume i <= n * 4; {32701#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} is VALID [2019-01-31 14:41:09,852 INFO L273 TraceCheckUtils]: 69: Hoare triple {32708#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} assume a[i] != 23;i := i + 4; {32701#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} is VALID [2019-01-31 14:41:09,852 INFO L273 TraceCheckUtils]: 68: Hoare triple {32708#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} assume i <= n * 4; {32708#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} is VALID [2019-01-31 14:41:09,853 INFO L273 TraceCheckUtils]: 67: Hoare triple {32715#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} assume a[i] != 23;i := i + 4; {32708#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} is VALID [2019-01-31 14:41:09,854 INFO L273 TraceCheckUtils]: 66: Hoare triple {32715#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} assume i <= n * 4; {32715#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} is VALID [2019-01-31 14:41:09,855 INFO L273 TraceCheckUtils]: 65: Hoare triple {32722#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} assume a[i] != 23;i := i + 4; {32715#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} is VALID [2019-01-31 14:41:09,855 INFO L273 TraceCheckUtils]: 64: Hoare triple {32722#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} assume i <= n * 4; {32722#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} is VALID [2019-01-31 14:41:09,856 INFO L273 TraceCheckUtils]: 63: Hoare triple {32729#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} assume a[i] != 23;i := i + 4; {32722#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} is VALID [2019-01-31 14:41:09,857 INFO L273 TraceCheckUtils]: 62: Hoare triple {32729#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} assume i <= n * 4; {32729#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} is VALID [2019-01-31 14:41:09,858 INFO L273 TraceCheckUtils]: 61: Hoare triple {32736#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} assume a[i] != 23;i := i + 4; {32729#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} is VALID [2019-01-31 14:41:09,873 INFO L273 TraceCheckUtils]: 60: Hoare triple {32736#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} assume i <= n * 4; {32736#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} is VALID [2019-01-31 14:41:09,874 INFO L273 TraceCheckUtils]: 59: Hoare triple {32743#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} assume a[i] != 23;i := i + 4; {32736#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} is VALID [2019-01-31 14:41:09,874 INFO L273 TraceCheckUtils]: 58: Hoare triple {32743#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} assume i <= n * 4; {32743#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} is VALID [2019-01-31 14:41:09,875 INFO L273 TraceCheckUtils]: 57: Hoare triple {32750#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {32743#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} is VALID [2019-01-31 14:41:09,875 INFO L273 TraceCheckUtils]: 56: Hoare triple {32750#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} assume i <= n * 4; {32750#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} is VALID [2019-01-31 14:41:09,876 INFO L273 TraceCheckUtils]: 55: Hoare triple {32757#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {32750#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} is VALID [2019-01-31 14:41:09,876 INFO L273 TraceCheckUtils]: 54: Hoare triple {32757#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} assume i <= n * 4; {32757#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} is VALID [2019-01-31 14:41:09,877 INFO L273 TraceCheckUtils]: 53: Hoare triple {32764#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {32757#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} is VALID [2019-01-31 14:41:09,878 INFO L273 TraceCheckUtils]: 52: Hoare triple {32764#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} assume i <= n * 4; {32764#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} is VALID [2019-01-31 14:41:09,879 INFO L273 TraceCheckUtils]: 51: Hoare triple {32771#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} assume a[i] != 23;i := i + 4; {32764#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} is VALID [2019-01-31 14:41:09,880 INFO L273 TraceCheckUtils]: 50: Hoare triple {32771#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} assume i <= n * 4; {32771#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} is VALID [2019-01-31 14:41:09,881 INFO L273 TraceCheckUtils]: 49: Hoare triple {32778#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {32771#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} is VALID [2019-01-31 14:41:09,881 INFO L273 TraceCheckUtils]: 48: Hoare triple {32778#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} assume i <= n * 4; {32778#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} is VALID [2019-01-31 14:41:09,882 INFO L273 TraceCheckUtils]: 47: Hoare triple {32785#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} assume a[i] != 23;i := i + 4; {32778#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} is VALID [2019-01-31 14:41:09,883 INFO L273 TraceCheckUtils]: 46: Hoare triple {32785#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} assume i <= n * 4; {32785#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} is VALID [2019-01-31 14:41:09,884 INFO L273 TraceCheckUtils]: 45: Hoare triple {32792#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} assume a[i] != 23;i := i + 4; {32785#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} is VALID [2019-01-31 14:41:09,884 INFO L273 TraceCheckUtils]: 44: Hoare triple {32792#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} assume i <= n * 4; {32792#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} is VALID [2019-01-31 14:41:09,885 INFO L273 TraceCheckUtils]: 43: Hoare triple {32799#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} assume a[i] != 23;i := i + 4; {32792#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} is VALID [2019-01-31 14:41:09,886 INFO L273 TraceCheckUtils]: 42: Hoare triple {32799#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} assume i <= n * 4; {32799#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} is VALID [2019-01-31 14:41:09,887 INFO L273 TraceCheckUtils]: 41: Hoare triple {32806#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {32799#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} is VALID [2019-01-31 14:41:09,887 INFO L273 TraceCheckUtils]: 40: Hoare triple {32806#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} assume i <= n * 4; {32806#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} is VALID [2019-01-31 14:41:09,889 INFO L273 TraceCheckUtils]: 39: Hoare triple {32813#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {32806#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} is VALID [2019-01-31 14:41:09,889 INFO L273 TraceCheckUtils]: 38: Hoare triple {32813#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} assume i <= n * 4; {32813#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} is VALID [2019-01-31 14:41:09,890 INFO L273 TraceCheckUtils]: 37: Hoare triple {32820#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} assume a[i] != 23;i := i + 4; {32813#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} is VALID [2019-01-31 14:41:09,891 INFO L273 TraceCheckUtils]: 36: Hoare triple {32820#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} assume i <= n * 4; {32820#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} is VALID [2019-01-31 14:41:09,892 INFO L273 TraceCheckUtils]: 35: Hoare triple {32827#(or (< (* 4 main_n) (+ main_i 128)) (= (select main_a (+ main_i 128)) 23) (< (+ main_i 131) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {32820#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} is VALID [2019-01-31 14:41:09,892 INFO L273 TraceCheckUtils]: 34: Hoare triple {32827#(or (< (* 4 main_n) (+ main_i 128)) (= (select main_a (+ main_i 128)) 23) (< (+ main_i 131) (* 4 main_n)))} assume i <= n * 4; {32827#(or (< (* 4 main_n) (+ main_i 128)) (= (select main_a (+ main_i 128)) 23) (< (+ main_i 131) (* 4 main_n)))} is VALID [2019-01-31 14:41:09,893 INFO L273 TraceCheckUtils]: 33: Hoare triple {32834#(or (< (* 4 main_n) (+ main_i 132)) (< (+ main_i 135) (* 4 main_n)) (= (select main_a (+ main_i 132)) 23))} assume a[i] != 23;i := i + 4; {32827#(or (< (* 4 main_n) (+ main_i 128)) (= (select main_a (+ main_i 128)) 23) (< (+ main_i 131) (* 4 main_n)))} is VALID [2019-01-31 14:41:09,894 INFO L273 TraceCheckUtils]: 32: Hoare triple {32834#(or (< (* 4 main_n) (+ main_i 132)) (< (+ main_i 135) (* 4 main_n)) (= (select main_a (+ main_i 132)) 23))} assume i <= n * 4; {32834#(or (< (* 4 main_n) (+ main_i 132)) (< (+ main_i 135) (* 4 main_n)) (= (select main_a (+ main_i 132)) 23))} is VALID [2019-01-31 14:41:09,895 INFO L273 TraceCheckUtils]: 31: Hoare triple {32841#(or (< (+ main_i 139) (* 4 main_n)) (= (select main_a (+ main_i 136)) 23) (< (* 4 main_n) (+ main_i 136)))} assume a[i] != 23;i := i + 4; {32834#(or (< (* 4 main_n) (+ main_i 132)) (< (+ main_i 135) (* 4 main_n)) (= (select main_a (+ main_i 132)) 23))} is VALID [2019-01-31 14:41:09,895 INFO L273 TraceCheckUtils]: 30: Hoare triple {32841#(or (< (+ main_i 139) (* 4 main_n)) (= (select main_a (+ main_i 136)) 23) (< (* 4 main_n) (+ main_i 136)))} assume i <= n * 4; {32841#(or (< (+ main_i 139) (* 4 main_n)) (= (select main_a (+ main_i 136)) 23) (< (* 4 main_n) (+ main_i 136)))} is VALID [2019-01-31 14:41:09,896 INFO L273 TraceCheckUtils]: 29: Hoare triple {32848#(or (< (* 4 main_n) (+ main_i 140)) (< (+ main_i 143) (* 4 main_n)) (= (select main_a (+ main_i 140)) 23))} assume a[i] != 23;i := i + 4; {32841#(or (< (+ main_i 139) (* 4 main_n)) (= (select main_a (+ main_i 136)) 23) (< (* 4 main_n) (+ main_i 136)))} is VALID [2019-01-31 14:41:09,897 INFO L273 TraceCheckUtils]: 28: Hoare triple {32848#(or (< (* 4 main_n) (+ main_i 140)) (< (+ main_i 143) (* 4 main_n)) (= (select main_a (+ main_i 140)) 23))} assume i <= n * 4; {32848#(or (< (* 4 main_n) (+ main_i 140)) (< (+ main_i 143) (* 4 main_n)) (= (select main_a (+ main_i 140)) 23))} is VALID [2019-01-31 14:41:09,898 INFO L273 TraceCheckUtils]: 27: Hoare triple {32855#(or (= (select main_a (+ main_i 144)) 23) (< (+ main_i 147) (* 4 main_n)) (< (* 4 main_n) (+ main_i 144)))} assume a[i] != 23;i := i + 4; {32848#(or (< (* 4 main_n) (+ main_i 140)) (< (+ main_i 143) (* 4 main_n)) (= (select main_a (+ main_i 140)) 23))} is VALID [2019-01-31 14:41:09,898 INFO L273 TraceCheckUtils]: 26: Hoare triple {32855#(or (= (select main_a (+ main_i 144)) 23) (< (+ main_i 147) (* 4 main_n)) (< (* 4 main_n) (+ main_i 144)))} assume i <= n * 4; {32855#(or (= (select main_a (+ main_i 144)) 23) (< (+ main_i 147) (* 4 main_n)) (< (* 4 main_n) (+ main_i 144)))} is VALID [2019-01-31 14:41:09,899 INFO L273 TraceCheckUtils]: 25: Hoare triple {32862#(or (< (+ main_i 151) (* 4 main_n)) (< (* 4 main_n) (+ main_i 148)) (= (select main_a (+ main_i 148)) 23))} assume a[i] != 23;i := i + 4; {32855#(or (= (select main_a (+ main_i 144)) 23) (< (+ main_i 147) (* 4 main_n)) (< (* 4 main_n) (+ main_i 144)))} is VALID [2019-01-31 14:41:09,900 INFO L273 TraceCheckUtils]: 24: Hoare triple {32862#(or (< (+ main_i 151) (* 4 main_n)) (< (* 4 main_n) (+ main_i 148)) (= (select main_a (+ main_i 148)) 23))} assume i <= n * 4; {32862#(or (< (+ main_i 151) (* 4 main_n)) (< (* 4 main_n) (+ main_i 148)) (= (select main_a (+ main_i 148)) 23))} is VALID [2019-01-31 14:41:09,901 INFO L273 TraceCheckUtils]: 23: Hoare triple {32869#(or (= 23 (select main_a (+ main_i 152))) (< (+ main_i 155) (* 4 main_n)) (< (* 4 main_n) (+ main_i 152)))} assume a[i] != 23;i := i + 4; {32862#(or (< (+ main_i 151) (* 4 main_n)) (< (* 4 main_n) (+ main_i 148)) (= (select main_a (+ main_i 148)) 23))} is VALID [2019-01-31 14:41:09,902 INFO L273 TraceCheckUtils]: 22: Hoare triple {32869#(or (= 23 (select main_a (+ main_i 152))) (< (+ main_i 155) (* 4 main_n)) (< (* 4 main_n) (+ main_i 152)))} assume i <= n * 4; {32869#(or (= 23 (select main_a (+ main_i 152))) (< (+ main_i 155) (* 4 main_n)) (< (* 4 main_n) (+ main_i 152)))} is VALID [2019-01-31 14:41:09,903 INFO L273 TraceCheckUtils]: 21: Hoare triple {32876#(or (< (+ main_i 159) (* 4 main_n)) (= (select main_a (+ main_i 156)) 23) (< (* 4 main_n) (+ main_i 156)))} assume a[i] != 23;i := i + 4; {32869#(or (= 23 (select main_a (+ main_i 152))) (< (+ main_i 155) (* 4 main_n)) (< (* 4 main_n) (+ main_i 152)))} is VALID [2019-01-31 14:41:09,903 INFO L273 TraceCheckUtils]: 20: Hoare triple {32876#(or (< (+ main_i 159) (* 4 main_n)) (= (select main_a (+ main_i 156)) 23) (< (* 4 main_n) (+ main_i 156)))} assume i <= n * 4; {32876#(or (< (+ main_i 159) (* 4 main_n)) (= (select main_a (+ main_i 156)) 23) (< (* 4 main_n) (+ main_i 156)))} is VALID [2019-01-31 14:41:09,904 INFO L273 TraceCheckUtils]: 19: Hoare triple {32883#(or (< (+ main_i 163) (* 4 main_n)) (= (select main_a (+ main_i 160)) 23) (< (* 4 main_n) (+ main_i 160)))} assume a[i] != 23;i := i + 4; {32876#(or (< (+ main_i 159) (* 4 main_n)) (= (select main_a (+ main_i 156)) 23) (< (* 4 main_n) (+ main_i 156)))} is VALID [2019-01-31 14:41:09,905 INFO L273 TraceCheckUtils]: 18: Hoare triple {32883#(or (< (+ main_i 163) (* 4 main_n)) (= (select main_a (+ main_i 160)) 23) (< (* 4 main_n) (+ main_i 160)))} assume i <= n * 4; {32883#(or (< (+ main_i 163) (* 4 main_n)) (= (select main_a (+ main_i 160)) 23) (< (* 4 main_n) (+ main_i 160)))} is VALID [2019-01-31 14:41:09,906 INFO L273 TraceCheckUtils]: 17: Hoare triple {32890#(or (< (* 4 main_n) (+ main_i 164)) (< (+ main_i 167) (* 4 main_n)) (= (select main_a (+ main_i 164)) 23))} assume a[i] != 23;i := i + 4; {32883#(or (< (+ main_i 163) (* 4 main_n)) (= (select main_a (+ main_i 160)) 23) (< (* 4 main_n) (+ main_i 160)))} is VALID [2019-01-31 14:41:09,906 INFO L273 TraceCheckUtils]: 16: Hoare triple {32890#(or (< (* 4 main_n) (+ main_i 164)) (< (+ main_i 167) (* 4 main_n)) (= (select main_a (+ main_i 164)) 23))} assume i <= n * 4; {32890#(or (< (* 4 main_n) (+ main_i 164)) (< (+ main_i 167) (* 4 main_n)) (= (select main_a (+ main_i 164)) 23))} is VALID [2019-01-31 14:41:09,907 INFO L273 TraceCheckUtils]: 15: Hoare triple {32897#(or (= (select main_a (+ main_i 168)) 23) (< (* 4 main_n) (+ main_i 168)) (< (+ main_i 171) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {32890#(or (< (* 4 main_n) (+ main_i 164)) (< (+ main_i 167) (* 4 main_n)) (= (select main_a (+ main_i 164)) 23))} is VALID [2019-01-31 14:41:09,908 INFO L273 TraceCheckUtils]: 14: Hoare triple {32897#(or (= (select main_a (+ main_i 168)) 23) (< (* 4 main_n) (+ main_i 168)) (< (+ main_i 171) (* 4 main_n)))} assume i <= n * 4; {32897#(or (= (select main_a (+ main_i 168)) 23) (< (* 4 main_n) (+ main_i 168)) (< (+ main_i 171) (* 4 main_n)))} is VALID [2019-01-31 14:41:09,909 INFO L273 TraceCheckUtils]: 13: Hoare triple {32904#(or (< (* 4 main_n) (+ main_i 172)) (= (select main_a (+ main_i 172)) 23) (< (+ main_i 175) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {32897#(or (= (select main_a (+ main_i 168)) 23) (< (* 4 main_n) (+ main_i 168)) (< (+ main_i 171) (* 4 main_n)))} is VALID [2019-01-31 14:41:09,910 INFO L273 TraceCheckUtils]: 12: Hoare triple {32904#(or (< (* 4 main_n) (+ main_i 172)) (= (select main_a (+ main_i 172)) 23) (< (+ main_i 175) (* 4 main_n)))} assume i <= n * 4; {32904#(or (< (* 4 main_n) (+ main_i 172)) (= (select main_a (+ main_i 172)) 23) (< (+ main_i 175) (* 4 main_n)))} is VALID [2019-01-31 14:41:09,911 INFO L273 TraceCheckUtils]: 11: Hoare triple {32911#(or (= (select main_a (+ main_i 176)) 23) (< (+ main_i 179) (* 4 main_n)) (< (* 4 main_n) (+ main_i 176)))} assume a[i] != 23;i := i + 4; {32904#(or (< (* 4 main_n) (+ main_i 172)) (= (select main_a (+ main_i 172)) 23) (< (+ main_i 175) (* 4 main_n)))} is VALID [2019-01-31 14:41:09,911 INFO L273 TraceCheckUtils]: 10: Hoare triple {32911#(or (= (select main_a (+ main_i 176)) 23) (< (+ main_i 179) (* 4 main_n)) (< (* 4 main_n) (+ main_i 176)))} assume i <= n * 4; {32911#(or (= (select main_a (+ main_i 176)) 23) (< (+ main_i 179) (* 4 main_n)) (< (* 4 main_n) (+ main_i 176)))} is VALID [2019-01-31 14:41:09,912 INFO L273 TraceCheckUtils]: 9: Hoare triple {32918#(or (< (+ main_i 183) (* 4 main_n)) (= (select main_a (+ main_i 180)) 23) (< (* 4 main_n) (+ main_i 180)))} assume a[i] != 23;i := i + 4; {32911#(or (= (select main_a (+ main_i 176)) 23) (< (+ main_i 179) (* 4 main_n)) (< (* 4 main_n) (+ main_i 176)))} is VALID [2019-01-31 14:41:09,913 INFO L273 TraceCheckUtils]: 8: Hoare triple {32918#(or (< (+ main_i 183) (* 4 main_n)) (= (select main_a (+ main_i 180)) 23) (< (* 4 main_n) (+ main_i 180)))} assume i <= n * 4; {32918#(or (< (+ main_i 183) (* 4 main_n)) (= (select main_a (+ main_i 180)) 23) (< (* 4 main_n) (+ main_i 180)))} is VALID [2019-01-31 14:41:09,914 INFO L273 TraceCheckUtils]: 7: Hoare triple {32925#(or (= (select main_a (+ main_i 184)) 23) (< (+ main_i 187) (* 4 main_n)) (< (* 4 main_n) (+ main_i 184)))} assume a[i] != 23;i := i + 4; {32918#(or (< (+ main_i 183) (* 4 main_n)) (= (select main_a (+ main_i 180)) 23) (< (* 4 main_n) (+ main_i 180)))} is VALID [2019-01-31 14:41:09,914 INFO L273 TraceCheckUtils]: 6: Hoare triple {32925#(or (= (select main_a (+ main_i 184)) 23) (< (+ main_i 187) (* 4 main_n)) (< (* 4 main_n) (+ main_i 184)))} assume i <= n * 4; {32925#(or (= (select main_a (+ main_i 184)) 23) (< (+ main_i 187) (* 4 main_n)) (< (* 4 main_n) (+ main_i 184)))} is VALID [2019-01-31 14:41:09,915 INFO L273 TraceCheckUtils]: 5: Hoare triple {32932#(or (< (+ main_i 191) (* 4 main_n)) (< (* 4 main_n) (+ main_i 188)) (= 23 (select main_a (+ main_i 188))))} assume a[i] != 23;i := i + 4; {32925#(or (= (select main_a (+ main_i 184)) 23) (< (+ main_i 187) (* 4 main_n)) (< (* 4 main_n) (+ main_i 184)))} is VALID [2019-01-31 14:41:09,916 INFO L273 TraceCheckUtils]: 4: Hoare triple {32932#(or (< (+ main_i 191) (* 4 main_n)) (< (* 4 main_n) (+ main_i 188)) (= 23 (select main_a (+ main_i 188))))} assume i <= n * 4; {32932#(or (< (+ main_i 191) (* 4 main_n)) (< (* 4 main_n) (+ main_i 188)) (= 23 (select main_a (+ main_i 188))))} is VALID [2019-01-31 14:41:09,917 INFO L273 TraceCheckUtils]: 3: Hoare triple {32939#(or (= 23 (select main_a (+ main_i 192))) (< (+ main_i 195) (* 4 main_n)) (< (* 4 main_n) (+ main_i 192)))} assume a[i] != 23;i := i + 4; {32932#(or (< (+ main_i 191) (* 4 main_n)) (< (* 4 main_n) (+ main_i 188)) (= 23 (select main_a (+ main_i 188))))} is VALID [2019-01-31 14:41:09,917 INFO L273 TraceCheckUtils]: 2: Hoare triple {32939#(or (= 23 (select main_a (+ main_i 192))) (< (+ main_i 195) (* 4 main_n)) (< (* 4 main_n) (+ main_i 192)))} assume i <= n * 4; {32939#(or (= 23 (select main_a (+ main_i 192))) (< (+ main_i 195) (* 4 main_n)) (< (* 4 main_n) (+ main_i 192)))} is VALID [2019-01-31 14:41:09,918 INFO L273 TraceCheckUtils]: 1: Hoare triple {32946#(or (= 23 (select main_a (+ main_i 196))) (< (+ main_i 199) (* 4 main_n)) (< (* 4 main_n) (+ main_i 196)))} assume a[i] != 23;i := i + 4; {32939#(or (= 23 (select main_a (+ main_i 192))) (< (+ main_i 195) (* 4 main_n)) (< (* 4 main_n) (+ main_i 192)))} is VALID [2019-01-31 14:41:09,919 INFO L273 TraceCheckUtils]: 0: Hoare triple {32190#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {32946#(or (= 23 (select main_a (+ main_i 196))) (< (+ main_i 199) (* 4 main_n)) (< (* 4 main_n) (+ main_i 196)))} is VALID [2019-01-31 14:41:09,959 INFO L134 CoverageAnalysis]: Checked inductivity of 2450 backedges. 0 proven. 2450 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-31 14:41:09,977 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-01-31 14:41:09,977 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [52, 52, 52] total 155 [2019-01-31 14:41:09,977 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-01-31 14:41:09,978 INFO L78 Accepts]: Start accepts. Automaton has 105 states. Word has length 101 [2019-01-31 14:41:09,978 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-01-31 14:41:09,978 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 105 states. [2019-01-31 14:41:10,282 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 201 edges. 201 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-01-31 14:41:10,282 INFO L459 AbstractCegarLoop]: Interpolant automaton has 105 states [2019-01-31 14:41:10,282 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 105 interpolants. [2019-01-31 14:41:10,283 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2972, Invalid=21520, Unknown=0, NotChecked=0, Total=24492 [2019-01-31 14:41:10,283 INFO L87 Difference]: Start difference. First operand 102 states and 102 transitions. Second operand 105 states. [2019-01-31 14:41:30,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 14:41:30,952 INFO L93 Difference]: Finished difference Result 106 states and 106 transitions. [2019-01-31 14:41:30,952 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2019-01-31 14:41:30,952 INFO L78 Accepts]: Start accepts. Automaton has 105 states. Word has length 101 [2019-01-31 14:41:30,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-31 14:41:30,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 105 states. [2019-01-31 14:41:30,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 106 transitions. [2019-01-31 14:41:30,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 105 states. [2019-01-31 14:41:30,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 106 transitions. [2019-01-31 14:41:30,955 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 54 states and 106 transitions. [2019-01-31 14:41:31,533 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 106 edges. 106 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-01-31 14:41:31,534 INFO L225 Difference]: With dead ends: 106 [2019-01-31 14:41:31,535 INFO L226 Difference]: Without dead ends: 105 [2019-01-31 14:41:31,535 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 252 GetRequests, 96 SyntacticMatches, 1 SemanticMatches, 155 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5508 ImplicationChecksByTransitivity, 13.4s TimeCoverageRelationStatistics Valid=2972, Invalid=21520, Unknown=0, NotChecked=0, Total=24492 [2019-01-31 14:41:31,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2019-01-31 14:41:32,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 104. [2019-01-31 14:41:32,007 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-01-31 14:41:32,007 INFO L82 GeneralOperation]: Start isEquivalent. First operand 105 states. Second operand 104 states. [2019-01-31 14:41:32,007 INFO L74 IsIncluded]: Start isIncluded. First operand 105 states. Second operand 104 states. [2019-01-31 14:41:32,007 INFO L87 Difference]: Start difference. First operand 105 states. Second operand 104 states. [2019-01-31 14:41:32,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 14:41:32,009 INFO L93 Difference]: Finished difference Result 105 states and 105 transitions. [2019-01-31 14:41:32,009 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 105 transitions. [2019-01-31 14:41:32,009 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-31 14:41:32,009 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-01-31 14:41:32,009 INFO L74 IsIncluded]: Start isIncluded. First operand 104 states. Second operand 105 states. [2019-01-31 14:41:32,009 INFO L87 Difference]: Start difference. First operand 104 states. Second operand 105 states. [2019-01-31 14:41:32,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 14:41:32,010 INFO L93 Difference]: Finished difference Result 105 states and 105 transitions. [2019-01-31 14:41:32,010 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 105 transitions. [2019-01-31 14:41:32,011 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-31 14:41:32,011 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-01-31 14:41:32,011 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-01-31 14:41:32,011 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-01-31 14:41:32,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 104 states. [2019-01-31 14:41:32,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 104 transitions. [2019-01-31 14:41:32,012 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 104 transitions. Word has length 101 [2019-01-31 14:41:32,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-31 14:41:32,012 INFO L480 AbstractCegarLoop]: Abstraction has 104 states and 104 transitions. [2019-01-31 14:41:32,012 INFO L481 AbstractCegarLoop]: Interpolant automaton has 105 states. [2019-01-31 14:41:32,012 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 104 transitions. [2019-01-31 14:41:32,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2019-01-31 14:41:32,013 INFO L394 BasicCegarLoop]: Found error trace [2019-01-31 14:41:32,013 INFO L402 BasicCegarLoop]: trace histogram [51, 50, 1, 1] [2019-01-31 14:41:32,013 INFO L423 AbstractCegarLoop]: === Iteration 51 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-01-31 14:41:32,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-31 14:41:32,013 INFO L82 PathProgramCache]: Analyzing trace with hash -315445948, now seen corresponding path program 50 times [2019-01-31 14:41:32,014 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-01-31 14:41:32,014 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-31 14:41:32,014 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-31 14:41:32,014 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-31 14:41:32,015 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-01-31 14:41:32,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-31 14:41:35,106 INFO L273 TraceCheckUtils]: 0: Hoare triple {33472#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {33474#(and (or (and (<= 0 main_i) (= 23 (select main_a (* 4 main_n)))) (< 50 main_n)) (or (<= main_n 50) (<= main_i 0)))} is VALID [2019-01-31 14:41:35,108 INFO L273 TraceCheckUtils]: 1: Hoare triple {33474#(and (or (and (<= 0 main_i) (= 23 (select main_a (* 4 main_n)))) (< 50 main_n)) (or (<= main_n 50) (<= main_i 0)))} assume a[i] != 23;i := i + 4; {33475#(and (or (< 50 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i))) (or (<= main_n 50) (<= main_i 4)))} is VALID [2019-01-31 14:41:35,108 INFO L273 TraceCheckUtils]: 2: Hoare triple {33475#(and (or (< 50 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i))) (or (<= main_n 50) (<= main_i 4)))} assume i <= n * 4; {33475#(and (or (< 50 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i))) (or (<= main_n 50) (<= main_i 4)))} is VALID [2019-01-31 14:41:35,110 INFO L273 TraceCheckUtils]: 3: Hoare triple {33475#(and (or (< 50 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i))) (or (<= main_n 50) (<= main_i 4)))} assume a[i] != 23;i := i + 4; {33476#(and (or (< 50 main_n) (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 50) (<= main_i 8)))} is VALID [2019-01-31 14:41:35,110 INFO L273 TraceCheckUtils]: 4: Hoare triple {33476#(and (or (< 50 main_n) (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 50) (<= main_i 8)))} assume i <= n * 4; {33476#(and (or (< 50 main_n) (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 50) (<= main_i 8)))} is VALID [2019-01-31 14:41:35,111 INFO L273 TraceCheckUtils]: 5: Hoare triple {33476#(and (or (< 50 main_n) (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 50) (<= main_i 8)))} assume a[i] != 23;i := i + 4; {33477#(and (or (<= main_n 50) (<= main_i 12)) (or (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n)))) (< 50 main_n)))} is VALID [2019-01-31 14:41:35,112 INFO L273 TraceCheckUtils]: 6: Hoare triple {33477#(and (or (<= main_n 50) (<= main_i 12)) (or (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n)))) (< 50 main_n)))} assume i <= n * 4; {33477#(and (or (<= main_n 50) (<= main_i 12)) (or (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n)))) (< 50 main_n)))} is VALID [2019-01-31 14:41:35,113 INFO L273 TraceCheckUtils]: 7: Hoare triple {33477#(and (or (<= main_n 50) (<= main_i 12)) (or (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n)))) (< 50 main_n)))} assume a[i] != 23;i := i + 4; {33478#(and (or (<= main_n 50) (<= main_i 16)) (or (< 50 main_n) (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:41:35,114 INFO L273 TraceCheckUtils]: 8: Hoare triple {33478#(and (or (<= main_n 50) (<= main_i 16)) (or (< 50 main_n) (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {33478#(and (or (<= main_n 50) (<= main_i 16)) (or (< 50 main_n) (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:41:35,115 INFO L273 TraceCheckUtils]: 9: Hoare triple {33478#(and (or (<= main_n 50) (<= main_i 16)) (or (< 50 main_n) (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {33479#(and (or (<= main_n 50) (<= main_i 20)) (or (< 50 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:41:35,116 INFO L273 TraceCheckUtils]: 10: Hoare triple {33479#(and (or (<= main_n 50) (<= main_i 20)) (or (< 50 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {33479#(and (or (<= main_n 50) (<= main_i 20)) (or (< 50 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:41:35,117 INFO L273 TraceCheckUtils]: 11: Hoare triple {33479#(and (or (<= main_n 50) (<= main_i 20)) (or (< 50 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {33480#(and (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 50 main_n)) (or (<= main_n 50) (<= main_i 24)))} is VALID [2019-01-31 14:41:35,118 INFO L273 TraceCheckUtils]: 12: Hoare triple {33480#(and (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 50 main_n)) (or (<= main_n 50) (<= main_i 24)))} assume i <= n * 4; {33480#(and (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 50 main_n)) (or (<= main_n 50) (<= main_i 24)))} is VALID [2019-01-31 14:41:35,119 INFO L273 TraceCheckUtils]: 13: Hoare triple {33480#(and (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 50 main_n)) (or (<= main_n 50) (<= main_i 24)))} assume a[i] != 23;i := i + 4; {33481#(and (or (<= main_n 50) (<= main_i 28)) (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 50 main_n)))} is VALID [2019-01-31 14:41:35,119 INFO L273 TraceCheckUtils]: 14: Hoare triple {33481#(and (or (<= main_n 50) (<= main_i 28)) (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 50 main_n)))} assume i <= n * 4; {33481#(and (or (<= main_n 50) (<= main_i 28)) (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 50 main_n)))} is VALID [2019-01-31 14:41:35,120 INFO L273 TraceCheckUtils]: 15: Hoare triple {33481#(and (or (<= main_n 50) (<= main_i 28)) (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 50 main_n)))} assume a[i] != 23;i := i + 4; {33482#(and (or (<= main_i 32) (<= main_n 50)) (or (< 50 main_n) (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:41:35,121 INFO L273 TraceCheckUtils]: 16: Hoare triple {33482#(and (or (<= main_i 32) (<= main_n 50)) (or (< 50 main_n) (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {33482#(and (or (<= main_i 32) (<= main_n 50)) (or (< 50 main_n) (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:41:35,122 INFO L273 TraceCheckUtils]: 17: Hoare triple {33482#(and (or (<= main_i 32) (<= main_n 50)) (or (< 50 main_n) (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {33483#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i)) (< 50 main_n)) (or (<= main_i 36) (<= main_n 50)))} is VALID [2019-01-31 14:41:35,123 INFO L273 TraceCheckUtils]: 18: Hoare triple {33483#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i)) (< 50 main_n)) (or (<= main_i 36) (<= main_n 50)))} assume i <= n * 4; {33483#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i)) (< 50 main_n)) (or (<= main_i 36) (<= main_n 50)))} is VALID [2019-01-31 14:41:35,124 INFO L273 TraceCheckUtils]: 19: Hoare triple {33483#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i)) (< 50 main_n)) (or (<= main_i 36) (<= main_n 50)))} assume a[i] != 23;i := i + 4; {33484#(and (or (<= main_i 40) (<= main_n 50)) (or (< 50 main_n) (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:41:35,125 INFO L273 TraceCheckUtils]: 20: Hoare triple {33484#(and (or (<= main_i 40) (<= main_n 50)) (or (< 50 main_n) (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {33484#(and (or (<= main_i 40) (<= main_n 50)) (or (< 50 main_n) (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:41:35,126 INFO L273 TraceCheckUtils]: 21: Hoare triple {33484#(and (or (<= main_i 40) (<= main_n 50)) (or (< 50 main_n) (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {33485#(and (or (<= main_n 50) (<= main_i 44)) (or (< 50 main_n) (and (<= 44 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:41:35,127 INFO L273 TraceCheckUtils]: 22: Hoare triple {33485#(and (or (<= main_n 50) (<= main_i 44)) (or (< 50 main_n) (and (<= 44 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {33485#(and (or (<= main_n 50) (<= main_i 44)) (or (< 50 main_n) (and (<= 44 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:41:35,128 INFO L273 TraceCheckUtils]: 23: Hoare triple {33485#(and (or (<= main_n 50) (<= main_i 44)) (or (< 50 main_n) (and (<= 44 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {33486#(and (or (<= main_n 50) (<= main_i 48)) (or (and (<= 48 main_i) (= 23 (select main_a (* 4 main_n)))) (< 50 main_n)))} is VALID [2019-01-31 14:41:35,128 INFO L273 TraceCheckUtils]: 24: Hoare triple {33486#(and (or (<= main_n 50) (<= main_i 48)) (or (and (<= 48 main_i) (= 23 (select main_a (* 4 main_n)))) (< 50 main_n)))} assume i <= n * 4; {33486#(and (or (<= main_n 50) (<= main_i 48)) (or (and (<= 48 main_i) (= 23 (select main_a (* 4 main_n)))) (< 50 main_n)))} is VALID [2019-01-31 14:41:35,129 INFO L273 TraceCheckUtils]: 25: Hoare triple {33486#(and (or (<= main_n 50) (<= main_i 48)) (or (and (<= 48 main_i) (= 23 (select main_a (* 4 main_n)))) (< 50 main_n)))} assume a[i] != 23;i := i + 4; {33487#(and (or (and (<= 52 main_i) (= 23 (select main_a (* 4 main_n)))) (< 50 main_n)) (or (<= main_i 52) (<= main_n 50)))} is VALID [2019-01-31 14:41:35,130 INFO L273 TraceCheckUtils]: 26: Hoare triple {33487#(and (or (and (<= 52 main_i) (= 23 (select main_a (* 4 main_n)))) (< 50 main_n)) (or (<= main_i 52) (<= main_n 50)))} assume i <= n * 4; {33487#(and (or (and (<= 52 main_i) (= 23 (select main_a (* 4 main_n)))) (< 50 main_n)) (or (<= main_i 52) (<= main_n 50)))} is VALID [2019-01-31 14:41:35,131 INFO L273 TraceCheckUtils]: 27: Hoare triple {33487#(and (or (and (<= 52 main_i) (= 23 (select main_a (* 4 main_n)))) (< 50 main_n)) (or (<= main_i 52) (<= main_n 50)))} assume a[i] != 23;i := i + 4; {33488#(and (or (< 50 main_n) (and (<= 56 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 50) (<= main_i 56)))} is VALID [2019-01-31 14:41:35,132 INFO L273 TraceCheckUtils]: 28: Hoare triple {33488#(and (or (< 50 main_n) (and (<= 56 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 50) (<= main_i 56)))} assume i <= n * 4; {33488#(and (or (< 50 main_n) (and (<= 56 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 50) (<= main_i 56)))} is VALID [2019-01-31 14:41:35,133 INFO L273 TraceCheckUtils]: 29: Hoare triple {33488#(and (or (< 50 main_n) (and (<= 56 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 50) (<= main_i 56)))} assume a[i] != 23;i := i + 4; {33489#(and (or (< 50 main_n) (and (<= 60 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 50) (<= main_i 60)))} is VALID [2019-01-31 14:41:35,134 INFO L273 TraceCheckUtils]: 30: Hoare triple {33489#(and (or (< 50 main_n) (and (<= 60 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 50) (<= main_i 60)))} assume i <= n * 4; {33489#(and (or (< 50 main_n) (and (<= 60 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 50) (<= main_i 60)))} is VALID [2019-01-31 14:41:35,135 INFO L273 TraceCheckUtils]: 31: Hoare triple {33489#(and (or (< 50 main_n) (and (<= 60 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 50) (<= main_i 60)))} assume a[i] != 23;i := i + 4; {33490#(and (or (and (<= 64 main_i) (= 23 (select main_a (* 4 main_n)))) (< 50 main_n)) (or (<= main_n 50) (<= main_i 64)))} is VALID [2019-01-31 14:41:35,135 INFO L273 TraceCheckUtils]: 32: Hoare triple {33490#(and (or (and (<= 64 main_i) (= 23 (select main_a (* 4 main_n)))) (< 50 main_n)) (or (<= main_n 50) (<= main_i 64)))} assume i <= n * 4; {33490#(and (or (and (<= 64 main_i) (= 23 (select main_a (* 4 main_n)))) (< 50 main_n)) (or (<= main_n 50) (<= main_i 64)))} is VALID [2019-01-31 14:41:35,137 INFO L273 TraceCheckUtils]: 33: Hoare triple {33490#(and (or (and (<= 64 main_i) (= 23 (select main_a (* 4 main_n)))) (< 50 main_n)) (or (<= main_n 50) (<= main_i 64)))} assume a[i] != 23;i := i + 4; {33491#(and (or (<= main_n 50) (<= main_i 68)) (or (and (<= 68 main_i) (= 23 (select main_a (* 4 main_n)))) (< 50 main_n)))} is VALID [2019-01-31 14:41:35,137 INFO L273 TraceCheckUtils]: 34: Hoare triple {33491#(and (or (<= main_n 50) (<= main_i 68)) (or (and (<= 68 main_i) (= 23 (select main_a (* 4 main_n)))) (< 50 main_n)))} assume i <= n * 4; {33491#(and (or (<= main_n 50) (<= main_i 68)) (or (and (<= 68 main_i) (= 23 (select main_a (* 4 main_n)))) (< 50 main_n)))} is VALID [2019-01-31 14:41:35,138 INFO L273 TraceCheckUtils]: 35: Hoare triple {33491#(and (or (<= main_n 50) (<= main_i 68)) (or (and (<= 68 main_i) (= 23 (select main_a (* 4 main_n)))) (< 50 main_n)))} assume a[i] != 23;i := i + 4; {33492#(and (or (<= main_n 50) (<= main_i 72)) (or (and (<= 72 main_i) (= 23 (select main_a (* 4 main_n)))) (< 50 main_n)))} is VALID [2019-01-31 14:41:35,139 INFO L273 TraceCheckUtils]: 36: Hoare triple {33492#(and (or (<= main_n 50) (<= main_i 72)) (or (and (<= 72 main_i) (= 23 (select main_a (* 4 main_n)))) (< 50 main_n)))} assume i <= n * 4; {33492#(and (or (<= main_n 50) (<= main_i 72)) (or (and (<= 72 main_i) (= 23 (select main_a (* 4 main_n)))) (< 50 main_n)))} is VALID [2019-01-31 14:41:35,140 INFO L273 TraceCheckUtils]: 37: Hoare triple {33492#(and (or (<= main_n 50) (<= main_i 72)) (or (and (<= 72 main_i) (= 23 (select main_a (* 4 main_n)))) (< 50 main_n)))} assume a[i] != 23;i := i + 4; {33493#(and (or (and (<= 76 main_i) (= 23 (select main_a (* 4 main_n)))) (< 50 main_n)) (or (<= main_i 76) (<= main_n 50)))} is VALID [2019-01-31 14:41:35,141 INFO L273 TraceCheckUtils]: 38: Hoare triple {33493#(and (or (and (<= 76 main_i) (= 23 (select main_a (* 4 main_n)))) (< 50 main_n)) (or (<= main_i 76) (<= main_n 50)))} assume i <= n * 4; {33493#(and (or (and (<= 76 main_i) (= 23 (select main_a (* 4 main_n)))) (< 50 main_n)) (or (<= main_i 76) (<= main_n 50)))} is VALID [2019-01-31 14:41:35,142 INFO L273 TraceCheckUtils]: 39: Hoare triple {33493#(and (or (and (<= 76 main_i) (= 23 (select main_a (* 4 main_n)))) (< 50 main_n)) (or (<= main_i 76) (<= main_n 50)))} assume a[i] != 23;i := i + 4; {33494#(and (or (<= main_n 50) (<= main_i 80)) (or (and (<= 80 main_i) (= 23 (select main_a (* 4 main_n)))) (< 50 main_n)))} is VALID [2019-01-31 14:41:35,143 INFO L273 TraceCheckUtils]: 40: Hoare triple {33494#(and (or (<= main_n 50) (<= main_i 80)) (or (and (<= 80 main_i) (= 23 (select main_a (* 4 main_n)))) (< 50 main_n)))} assume i <= n * 4; {33494#(and (or (<= main_n 50) (<= main_i 80)) (or (and (<= 80 main_i) (= 23 (select main_a (* 4 main_n)))) (< 50 main_n)))} is VALID [2019-01-31 14:41:35,144 INFO L273 TraceCheckUtils]: 41: Hoare triple {33494#(and (or (<= main_n 50) (<= main_i 80)) (or (and (<= 80 main_i) (= 23 (select main_a (* 4 main_n)))) (< 50 main_n)))} assume a[i] != 23;i := i + 4; {33495#(and (or (<= main_n 50) (<= main_i 84)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 84 main_i)) (< 50 main_n)))} is VALID [2019-01-31 14:41:35,144 INFO L273 TraceCheckUtils]: 42: Hoare triple {33495#(and (or (<= main_n 50) (<= main_i 84)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 84 main_i)) (< 50 main_n)))} assume i <= n * 4; {33495#(and (or (<= main_n 50) (<= main_i 84)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 84 main_i)) (< 50 main_n)))} is VALID [2019-01-31 14:41:35,145 INFO L273 TraceCheckUtils]: 43: Hoare triple {33495#(and (or (<= main_n 50) (<= main_i 84)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 84 main_i)) (< 50 main_n)))} assume a[i] != 23;i := i + 4; {33496#(and (or (<= main_i 88) (<= main_n 50)) (or (< 50 main_n) (and (<= 88 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:41:35,146 INFO L273 TraceCheckUtils]: 44: Hoare triple {33496#(and (or (<= main_i 88) (<= main_n 50)) (or (< 50 main_n) (and (<= 88 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {33496#(and (or (<= main_i 88) (<= main_n 50)) (or (< 50 main_n) (and (<= 88 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:41:35,147 INFO L273 TraceCheckUtils]: 45: Hoare triple {33496#(and (or (<= main_i 88) (<= main_n 50)) (or (< 50 main_n) (and (<= 88 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {33497#(and (or (<= main_i 92) (<= main_n 50)) (or (< 50 main_n) (and (<= 92 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:41:35,148 INFO L273 TraceCheckUtils]: 46: Hoare triple {33497#(and (or (<= main_i 92) (<= main_n 50)) (or (< 50 main_n) (and (<= 92 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {33497#(and (or (<= main_i 92) (<= main_n 50)) (or (< 50 main_n) (and (<= 92 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:41:35,149 INFO L273 TraceCheckUtils]: 47: Hoare triple {33497#(and (or (<= main_i 92) (<= main_n 50)) (or (< 50 main_n) (and (<= 92 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {33498#(and (or (and (<= 96 main_i) (= 23 (select main_a (* 4 main_n)))) (< 50 main_n)) (or (<= main_i 96) (<= main_n 50)))} is VALID [2019-01-31 14:41:35,150 INFO L273 TraceCheckUtils]: 48: Hoare triple {33498#(and (or (and (<= 96 main_i) (= 23 (select main_a (* 4 main_n)))) (< 50 main_n)) (or (<= main_i 96) (<= main_n 50)))} assume i <= n * 4; {33498#(and (or (and (<= 96 main_i) (= 23 (select main_a (* 4 main_n)))) (< 50 main_n)) (or (<= main_i 96) (<= main_n 50)))} is VALID [2019-01-31 14:41:35,151 INFO L273 TraceCheckUtils]: 49: Hoare triple {33498#(and (or (and (<= 96 main_i) (= 23 (select main_a (* 4 main_n)))) (< 50 main_n)) (or (<= main_i 96) (<= main_n 50)))} assume a[i] != 23;i := i + 4; {33499#(and (or (<= main_i 100) (<= main_n 50)) (or (and (<= 100 main_i) (= 23 (select main_a (* 4 main_n)))) (< 50 main_n)))} is VALID [2019-01-31 14:41:35,152 INFO L273 TraceCheckUtils]: 50: Hoare triple {33499#(and (or (<= main_i 100) (<= main_n 50)) (or (and (<= 100 main_i) (= 23 (select main_a (* 4 main_n)))) (< 50 main_n)))} assume i <= n * 4; {33499#(and (or (<= main_i 100) (<= main_n 50)) (or (and (<= 100 main_i) (= 23 (select main_a (* 4 main_n)))) (< 50 main_n)))} is VALID [2019-01-31 14:41:35,153 INFO L273 TraceCheckUtils]: 51: Hoare triple {33499#(and (or (<= main_i 100) (<= main_n 50)) (or (and (<= 100 main_i) (= 23 (select main_a (* 4 main_n)))) (< 50 main_n)))} assume a[i] != 23;i := i + 4; {33500#(and (or (and (<= 104 main_i) (= 23 (select main_a (* 4 main_n)))) (< 50 main_n)) (or (<= main_i 104) (<= main_n 50)))} is VALID [2019-01-31 14:41:35,153 INFO L273 TraceCheckUtils]: 52: Hoare triple {33500#(and (or (and (<= 104 main_i) (= 23 (select main_a (* 4 main_n)))) (< 50 main_n)) (or (<= main_i 104) (<= main_n 50)))} assume i <= n * 4; {33500#(and (or (and (<= 104 main_i) (= 23 (select main_a (* 4 main_n)))) (< 50 main_n)) (or (<= main_i 104) (<= main_n 50)))} is VALID [2019-01-31 14:41:35,154 INFO L273 TraceCheckUtils]: 53: Hoare triple {33500#(and (or (and (<= 104 main_i) (= 23 (select main_a (* 4 main_n)))) (< 50 main_n)) (or (<= main_i 104) (<= main_n 50)))} assume a[i] != 23;i := i + 4; {33501#(and (or (<= main_n 50) (<= main_i 108)) (or (and (<= 108 main_i) (= 23 (select main_a (* 4 main_n)))) (< 50 main_n)))} is VALID [2019-01-31 14:41:35,155 INFO L273 TraceCheckUtils]: 54: Hoare triple {33501#(and (or (<= main_n 50) (<= main_i 108)) (or (and (<= 108 main_i) (= 23 (select main_a (* 4 main_n)))) (< 50 main_n)))} assume i <= n * 4; {33501#(and (or (<= main_n 50) (<= main_i 108)) (or (and (<= 108 main_i) (= 23 (select main_a (* 4 main_n)))) (< 50 main_n)))} is VALID [2019-01-31 14:41:35,156 INFO L273 TraceCheckUtils]: 55: Hoare triple {33501#(and (or (<= main_n 50) (<= main_i 108)) (or (and (<= 108 main_i) (= 23 (select main_a (* 4 main_n)))) (< 50 main_n)))} assume a[i] != 23;i := i + 4; {33502#(and (or (<= main_n 50) (<= main_i 112)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 112 main_i)) (< 50 main_n)))} is VALID [2019-01-31 14:41:35,157 INFO L273 TraceCheckUtils]: 56: Hoare triple {33502#(and (or (<= main_n 50) (<= main_i 112)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 112 main_i)) (< 50 main_n)))} assume i <= n * 4; {33502#(and (or (<= main_n 50) (<= main_i 112)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 112 main_i)) (< 50 main_n)))} is VALID [2019-01-31 14:41:35,158 INFO L273 TraceCheckUtils]: 57: Hoare triple {33502#(and (or (<= main_n 50) (<= main_i 112)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 112 main_i)) (< 50 main_n)))} assume a[i] != 23;i := i + 4; {33503#(and (or (< 50 main_n) (and (<= 116 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 50) (<= main_i 116)))} is VALID [2019-01-31 14:41:35,159 INFO L273 TraceCheckUtils]: 58: Hoare triple {33503#(and (or (< 50 main_n) (and (<= 116 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 50) (<= main_i 116)))} assume i <= n * 4; {33503#(and (or (< 50 main_n) (and (<= 116 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 50) (<= main_i 116)))} is VALID [2019-01-31 14:41:35,160 INFO L273 TraceCheckUtils]: 59: Hoare triple {33503#(and (or (< 50 main_n) (and (<= 116 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 50) (<= main_i 116)))} assume a[i] != 23;i := i + 4; {33504#(and (or (<= main_n 50) (<= main_i 120)) (or (< 50 main_n) (and (<= 120 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:41:35,160 INFO L273 TraceCheckUtils]: 60: Hoare triple {33504#(and (or (<= main_n 50) (<= main_i 120)) (or (< 50 main_n) (and (<= 120 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {33504#(and (or (<= main_n 50) (<= main_i 120)) (or (< 50 main_n) (and (<= 120 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:41:35,161 INFO L273 TraceCheckUtils]: 61: Hoare triple {33504#(and (or (<= main_n 50) (<= main_i 120)) (or (< 50 main_n) (and (<= 120 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {33505#(and (or (and (<= 124 main_i) (= 23 (select main_a (* 4 main_n)))) (< 50 main_n)) (or (<= main_n 50) (<= main_i 124)))} is VALID [2019-01-31 14:41:35,162 INFO L273 TraceCheckUtils]: 62: Hoare triple {33505#(and (or (and (<= 124 main_i) (= 23 (select main_a (* 4 main_n)))) (< 50 main_n)) (or (<= main_n 50) (<= main_i 124)))} assume i <= n * 4; {33505#(and (or (and (<= 124 main_i) (= 23 (select main_a (* 4 main_n)))) (< 50 main_n)) (or (<= main_n 50) (<= main_i 124)))} is VALID [2019-01-31 14:41:35,163 INFO L273 TraceCheckUtils]: 63: Hoare triple {33505#(and (or (and (<= 124 main_i) (= 23 (select main_a (* 4 main_n)))) (< 50 main_n)) (or (<= main_n 50) (<= main_i 124)))} assume a[i] != 23;i := i + 4; {33506#(and (or (<= main_n 50) (<= main_i 128)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 128 main_i)) (< 50 main_n)))} is VALID [2019-01-31 14:41:35,164 INFO L273 TraceCheckUtils]: 64: Hoare triple {33506#(and (or (<= main_n 50) (<= main_i 128)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 128 main_i)) (< 50 main_n)))} assume i <= n * 4; {33506#(and (or (<= main_n 50) (<= main_i 128)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 128 main_i)) (< 50 main_n)))} is VALID [2019-01-31 14:41:35,165 INFO L273 TraceCheckUtils]: 65: Hoare triple {33506#(and (or (<= main_n 50) (<= main_i 128)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 128 main_i)) (< 50 main_n)))} assume a[i] != 23;i := i + 4; {33507#(and (or (< 50 main_n) (and (<= 132 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 132) (<= main_n 50)))} is VALID [2019-01-31 14:41:35,166 INFO L273 TraceCheckUtils]: 66: Hoare triple {33507#(and (or (< 50 main_n) (and (<= 132 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 132) (<= main_n 50)))} assume i <= n * 4; {33507#(and (or (< 50 main_n) (and (<= 132 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 132) (<= main_n 50)))} is VALID [2019-01-31 14:41:35,167 INFO L273 TraceCheckUtils]: 67: Hoare triple {33507#(and (or (< 50 main_n) (and (<= 132 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 132) (<= main_n 50)))} assume a[i] != 23;i := i + 4; {33508#(and (or (<= main_i 136) (<= main_n 50)) (or (< 50 main_n) (and (<= 136 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:41:35,168 INFO L273 TraceCheckUtils]: 68: Hoare triple {33508#(and (or (<= main_i 136) (<= main_n 50)) (or (< 50 main_n) (and (<= 136 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {33508#(and (or (<= main_i 136) (<= main_n 50)) (or (< 50 main_n) (and (<= 136 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:41:35,169 INFO L273 TraceCheckUtils]: 69: Hoare triple {33508#(and (or (<= main_i 136) (<= main_n 50)) (or (< 50 main_n) (and (<= 136 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {33509#(and (or (< 50 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 140 main_i))) (or (<= main_n 50) (<= main_i 140)))} is VALID [2019-01-31 14:41:35,169 INFO L273 TraceCheckUtils]: 70: Hoare triple {33509#(and (or (< 50 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 140 main_i))) (or (<= main_n 50) (<= main_i 140)))} assume i <= n * 4; {33509#(and (or (< 50 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 140 main_i))) (or (<= main_n 50) (<= main_i 140)))} is VALID [2019-01-31 14:41:35,170 INFO L273 TraceCheckUtils]: 71: Hoare triple {33509#(and (or (< 50 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 140 main_i))) (or (<= main_n 50) (<= main_i 140)))} assume a[i] != 23;i := i + 4; {33510#(and (or (< 50 main_n) (and (<= 144 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 50) (<= main_i 144)))} is VALID [2019-01-31 14:41:35,171 INFO L273 TraceCheckUtils]: 72: Hoare triple {33510#(and (or (< 50 main_n) (and (<= 144 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 50) (<= main_i 144)))} assume i <= n * 4; {33510#(and (or (< 50 main_n) (and (<= 144 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 50) (<= main_i 144)))} is VALID [2019-01-31 14:41:35,172 INFO L273 TraceCheckUtils]: 73: Hoare triple {33510#(and (or (< 50 main_n) (and (<= 144 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 50) (<= main_i 144)))} assume a[i] != 23;i := i + 4; {33511#(and (or (< 50 main_n) (and (<= 148 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 50) (<= main_i 148)))} is VALID [2019-01-31 14:41:35,173 INFO L273 TraceCheckUtils]: 74: Hoare triple {33511#(and (or (< 50 main_n) (and (<= 148 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 50) (<= main_i 148)))} assume i <= n * 4; {33511#(and (or (< 50 main_n) (and (<= 148 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 50) (<= main_i 148)))} is VALID [2019-01-31 14:41:35,174 INFO L273 TraceCheckUtils]: 75: Hoare triple {33511#(and (or (< 50 main_n) (and (<= 148 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 50) (<= main_i 148)))} assume a[i] != 23;i := i + 4; {33512#(and (or (and (<= 152 main_i) (= 23 (select main_a (* 4 main_n)))) (< 50 main_n)) (or (<= main_n 50) (<= main_i 152)))} is VALID [2019-01-31 14:41:35,175 INFO L273 TraceCheckUtils]: 76: Hoare triple {33512#(and (or (and (<= 152 main_i) (= 23 (select main_a (* 4 main_n)))) (< 50 main_n)) (or (<= main_n 50) (<= main_i 152)))} assume i <= n * 4; {33512#(and (or (and (<= 152 main_i) (= 23 (select main_a (* 4 main_n)))) (< 50 main_n)) (or (<= main_n 50) (<= main_i 152)))} is VALID [2019-01-31 14:41:35,176 INFO L273 TraceCheckUtils]: 77: Hoare triple {33512#(and (or (and (<= 152 main_i) (= 23 (select main_a (* 4 main_n)))) (< 50 main_n)) (or (<= main_n 50) (<= main_i 152)))} assume a[i] != 23;i := i + 4; {33513#(and (or (< 50 main_n) (and (<= 156 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 156) (<= main_n 50)))} is VALID [2019-01-31 14:41:35,176 INFO L273 TraceCheckUtils]: 78: Hoare triple {33513#(and (or (< 50 main_n) (and (<= 156 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 156) (<= main_n 50)))} assume i <= n * 4; {33513#(and (or (< 50 main_n) (and (<= 156 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 156) (<= main_n 50)))} is VALID [2019-01-31 14:41:35,177 INFO L273 TraceCheckUtils]: 79: Hoare triple {33513#(and (or (< 50 main_n) (and (<= 156 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 156) (<= main_n 50)))} assume a[i] != 23;i := i + 4; {33514#(and (or (<= main_n 50) (<= main_i 160)) (or (and (<= 160 main_i) (= 23 (select main_a (* 4 main_n)))) (< 50 main_n)))} is VALID [2019-01-31 14:41:35,178 INFO L273 TraceCheckUtils]: 80: Hoare triple {33514#(and (or (<= main_n 50) (<= main_i 160)) (or (and (<= 160 main_i) (= 23 (select main_a (* 4 main_n)))) (< 50 main_n)))} assume i <= n * 4; {33514#(and (or (<= main_n 50) (<= main_i 160)) (or (and (<= 160 main_i) (= 23 (select main_a (* 4 main_n)))) (< 50 main_n)))} is VALID [2019-01-31 14:41:35,179 INFO L273 TraceCheckUtils]: 81: Hoare triple {33514#(and (or (<= main_n 50) (<= main_i 160)) (or (and (<= 160 main_i) (= 23 (select main_a (* 4 main_n)))) (< 50 main_n)))} assume a[i] != 23;i := i + 4; {33515#(and (or (and (<= 164 main_i) (= 23 (select main_a (* 4 main_n)))) (< 50 main_n)) (or (<= main_n 50) (<= main_i 164)))} is VALID [2019-01-31 14:41:35,180 INFO L273 TraceCheckUtils]: 82: Hoare triple {33515#(and (or (and (<= 164 main_i) (= 23 (select main_a (* 4 main_n)))) (< 50 main_n)) (or (<= main_n 50) (<= main_i 164)))} assume i <= n * 4; {33515#(and (or (and (<= 164 main_i) (= 23 (select main_a (* 4 main_n)))) (< 50 main_n)) (or (<= main_n 50) (<= main_i 164)))} is VALID [2019-01-31 14:41:35,181 INFO L273 TraceCheckUtils]: 83: Hoare triple {33515#(and (or (and (<= 164 main_i) (= 23 (select main_a (* 4 main_n)))) (< 50 main_n)) (or (<= main_n 50) (<= main_i 164)))} assume a[i] != 23;i := i + 4; {33516#(and (or (< 50 main_n) (and (<= 168 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 50) (<= main_i 168)))} is VALID [2019-01-31 14:41:35,182 INFO L273 TraceCheckUtils]: 84: Hoare triple {33516#(and (or (< 50 main_n) (and (<= 168 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 50) (<= main_i 168)))} assume i <= n * 4; {33516#(and (or (< 50 main_n) (and (<= 168 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 50) (<= main_i 168)))} is VALID [2019-01-31 14:41:35,183 INFO L273 TraceCheckUtils]: 85: Hoare triple {33516#(and (or (< 50 main_n) (and (<= 168 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 50) (<= main_i 168)))} assume a[i] != 23;i := i + 4; {33517#(and (or (<= main_n 50) (<= main_i 172)) (or (and (<= 172 main_i) (= 23 (select main_a (* 4 main_n)))) (< 50 main_n)))} is VALID [2019-01-31 14:41:35,184 INFO L273 TraceCheckUtils]: 86: Hoare triple {33517#(and (or (<= main_n 50) (<= main_i 172)) (or (and (<= 172 main_i) (= 23 (select main_a (* 4 main_n)))) (< 50 main_n)))} assume i <= n * 4; {33517#(and (or (<= main_n 50) (<= main_i 172)) (or (and (<= 172 main_i) (= 23 (select main_a (* 4 main_n)))) (< 50 main_n)))} is VALID [2019-01-31 14:41:35,185 INFO L273 TraceCheckUtils]: 87: Hoare triple {33517#(and (or (<= main_n 50) (<= main_i 172)) (or (and (<= 172 main_i) (= 23 (select main_a (* 4 main_n)))) (< 50 main_n)))} assume a[i] != 23;i := i + 4; {33518#(and (or (< 50 main_n) (and (<= 176 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 176) (<= main_n 50)))} is VALID [2019-01-31 14:41:35,185 INFO L273 TraceCheckUtils]: 88: Hoare triple {33518#(and (or (< 50 main_n) (and (<= 176 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 176) (<= main_n 50)))} assume i <= n * 4; {33518#(and (or (< 50 main_n) (and (<= 176 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 176) (<= main_n 50)))} is VALID [2019-01-31 14:41:35,186 INFO L273 TraceCheckUtils]: 89: Hoare triple {33518#(and (or (< 50 main_n) (and (<= 176 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 176) (<= main_n 50)))} assume a[i] != 23;i := i + 4; {33519#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 180 main_i)) (< 50 main_n)) (or (<= main_n 50) (<= main_i 180)))} is VALID [2019-01-31 14:41:35,187 INFO L273 TraceCheckUtils]: 90: Hoare triple {33519#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 180 main_i)) (< 50 main_n)) (or (<= main_n 50) (<= main_i 180)))} assume i <= n * 4; {33519#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 180 main_i)) (< 50 main_n)) (or (<= main_n 50) (<= main_i 180)))} is VALID [2019-01-31 14:41:35,188 INFO L273 TraceCheckUtils]: 91: Hoare triple {33519#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 180 main_i)) (< 50 main_n)) (or (<= main_n 50) (<= main_i 180)))} assume a[i] != 23;i := i + 4; {33520#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 184 main_i)) (< 50 main_n)) (or (<= main_i 184) (<= main_n 50)))} is VALID [2019-01-31 14:41:35,189 INFO L273 TraceCheckUtils]: 92: Hoare triple {33520#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 184 main_i)) (< 50 main_n)) (or (<= main_i 184) (<= main_n 50)))} assume i <= n * 4; {33520#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 184 main_i)) (< 50 main_n)) (or (<= main_i 184) (<= main_n 50)))} is VALID [2019-01-31 14:41:35,190 INFO L273 TraceCheckUtils]: 93: Hoare triple {33520#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 184 main_i)) (< 50 main_n)) (or (<= main_i 184) (<= main_n 50)))} assume a[i] != 23;i := i + 4; {33521#(and (or (<= main_i 188) (<= main_n 50)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 188 main_i)) (< 50 main_n)))} is VALID [2019-01-31 14:41:35,191 INFO L273 TraceCheckUtils]: 94: Hoare triple {33521#(and (or (<= main_i 188) (<= main_n 50)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 188 main_i)) (< 50 main_n)))} assume i <= n * 4; {33521#(and (or (<= main_i 188) (<= main_n 50)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 188 main_i)) (< 50 main_n)))} is VALID [2019-01-31 14:41:35,192 INFO L273 TraceCheckUtils]: 95: Hoare triple {33521#(and (or (<= main_i 188) (<= main_n 50)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 188 main_i)) (< 50 main_n)))} assume a[i] != 23;i := i + 4; {33522#(and (or (<= main_n 50) (<= main_i 192)) (or (and (<= 192 main_i) (= 23 (select main_a (* 4 main_n)))) (< 50 main_n)))} is VALID [2019-01-31 14:41:35,192 INFO L273 TraceCheckUtils]: 96: Hoare triple {33522#(and (or (<= main_n 50) (<= main_i 192)) (or (and (<= 192 main_i) (= 23 (select main_a (* 4 main_n)))) (< 50 main_n)))} assume i <= n * 4; {33522#(and (or (<= main_n 50) (<= main_i 192)) (or (and (<= 192 main_i) (= 23 (select main_a (* 4 main_n)))) (< 50 main_n)))} is VALID [2019-01-31 14:41:35,193 INFO L273 TraceCheckUtils]: 97: Hoare triple {33522#(and (or (<= main_n 50) (<= main_i 192)) (or (and (<= 192 main_i) (= 23 (select main_a (* 4 main_n)))) (< 50 main_n)))} assume a[i] != 23;i := i + 4; {33523#(and (or (<= main_n 50) (<= main_i 196)) (or (< 50 main_n) (and (<= 196 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:41:35,194 INFO L273 TraceCheckUtils]: 98: Hoare triple {33523#(and (or (<= main_n 50) (<= main_i 196)) (or (< 50 main_n) (and (<= 196 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {33523#(and (or (<= main_n 50) (<= main_i 196)) (or (< 50 main_n) (and (<= 196 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:41:35,195 INFO L273 TraceCheckUtils]: 99: Hoare triple {33523#(and (or (<= main_n 50) (<= main_i 196)) (or (< 50 main_n) (and (<= 196 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {33524#(and (or (<= main_n 50) (<= main_i 200)) (or (and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (<= (* 4 main_n) main_i)) (< 50 main_n)))} is VALID [2019-01-31 14:41:35,196 INFO L273 TraceCheckUtils]: 100: Hoare triple {33524#(and (or (<= main_n 50) (<= main_i 200)) (or (and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (<= (* 4 main_n) main_i)) (< 50 main_n)))} assume i <= n * 4; {33525#(and (or (< 50 main_n) (and (<= (* 4 main_n) main_i) (<= main_i (* 4 main_n)) (= 23 (select main_a main_i)))) (<= main_i 200))} is VALID [2019-01-31 14:41:35,197 INFO L273 TraceCheckUtils]: 101: Hoare triple {33525#(and (or (< 50 main_n) (and (<= (* 4 main_n) main_i) (<= main_i (* 4 main_n)) (= 23 (select main_a main_i)))) (<= main_i 200))} assume a[i] != 23;i := i + 4; {33526#(and (< 50 main_n) (<= main_i 204))} is VALID [2019-01-31 14:41:35,198 INFO L273 TraceCheckUtils]: 102: Hoare triple {33526#(and (< 50 main_n) (<= main_i 204))} assume !(i <= n * 4); {33473#false} is VALID [2019-01-31 14:41:35,249 INFO L134 CoverageAnalysis]: Checked inductivity of 2550 backedges. 0 proven. 2550 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-31 14:41:35,249 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-31 14:41:35,249 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-01-31 14:41:35,249 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-01-31 14:41:35,249 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-01-31 14:41:35,250 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-31 14:41:35,250 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 14:41:35,260 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2019-01-31 14:41:35,260 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST2 (IT: FPandBP) [2019-01-31 14:41:35,346 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 51 check-sat command(s) [2019-01-31 14:41:35,346 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-01-31 14:41:35,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-31 14:41:35,363 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-31 14:41:35,390 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 14:41:35,395 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-01-31 14:41:35,405 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-31 14:41:35,405 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2019-01-31 14:41:35,407 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-01-31 14:41:35,407 WARN L398 uantifierElimination]: Input elimination task: ∃ [v_main_a_54]. (and (= main_a (store v_main_a_54 (* 4 main_n) 23)) (= main_i 0)) [2019-01-31 14:41:35,407 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2019-01-31 14:41:39,697 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2019-01-31 14:41:39,699 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-01-31 14:41:39,705 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-31 14:41:39,706 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2019-01-31 14:41:39,708 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-01-31 14:41:39,708 WARN L398 uantifierElimination]: Input elimination task: ∃ [main_a]. (let ((.cse0 (* 4 main_n))) (and (<= 200 .cse0) (not (= (select main_a 200) 23)) (<= main_i 204) (= 23 (select main_a .cse0)))) [2019-01-31 14:41:39,709 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (let ((.cse0 (* 4 main_n))) (and (not (= 200 .cse0)) (<= 200 .cse0) (<= main_i 204))) [2019-01-31 14:41:39,772 INFO L273 TraceCheckUtils]: 0: Hoare triple {33472#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {33530#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:41:39,773 INFO L273 TraceCheckUtils]: 1: Hoare triple {33530#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {33534#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2019-01-31 14:41:39,773 INFO L273 TraceCheckUtils]: 2: Hoare triple {33534#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume i <= n * 4; {33534#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2019-01-31 14:41:39,774 INFO L273 TraceCheckUtils]: 3: Hoare triple {33534#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume a[i] != 23;i := i + 4; {33541#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:41:39,774 INFO L273 TraceCheckUtils]: 4: Hoare triple {33541#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {33541#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:41:39,775 INFO L273 TraceCheckUtils]: 5: Hoare triple {33541#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {33548#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2019-01-31 14:41:39,776 INFO L273 TraceCheckUtils]: 6: Hoare triple {33548#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume i <= n * 4; {33548#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2019-01-31 14:41:39,776 INFO L273 TraceCheckUtils]: 7: Hoare triple {33548#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume a[i] != 23;i := i + 4; {33555#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:41:39,777 INFO L273 TraceCheckUtils]: 8: Hoare triple {33555#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {33555#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:41:39,778 INFO L273 TraceCheckUtils]: 9: Hoare triple {33555#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {33562#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:41:39,778 INFO L273 TraceCheckUtils]: 10: Hoare triple {33562#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {33562#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:41:39,779 INFO L273 TraceCheckUtils]: 11: Hoare triple {33562#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {33569#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:41:39,780 INFO L273 TraceCheckUtils]: 12: Hoare triple {33569#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {33569#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:41:39,781 INFO L273 TraceCheckUtils]: 13: Hoare triple {33569#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {33576#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:41:39,781 INFO L273 TraceCheckUtils]: 14: Hoare triple {33576#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {33576#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:41:39,782 INFO L273 TraceCheckUtils]: 15: Hoare triple {33576#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {33583#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:41:39,783 INFO L273 TraceCheckUtils]: 16: Hoare triple {33583#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {33583#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:41:39,783 INFO L273 TraceCheckUtils]: 17: Hoare triple {33583#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {33590#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:41:39,784 INFO L273 TraceCheckUtils]: 18: Hoare triple {33590#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {33590#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:41:39,785 INFO L273 TraceCheckUtils]: 19: Hoare triple {33590#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {33597#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:41:39,785 INFO L273 TraceCheckUtils]: 20: Hoare triple {33597#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {33597#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:41:39,786 INFO L273 TraceCheckUtils]: 21: Hoare triple {33597#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {33604#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:41:39,787 INFO L273 TraceCheckUtils]: 22: Hoare triple {33604#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {33604#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:41:39,787 INFO L273 TraceCheckUtils]: 23: Hoare triple {33604#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {33611#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:41:39,788 INFO L273 TraceCheckUtils]: 24: Hoare triple {33611#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {33611#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:41:39,789 INFO L273 TraceCheckUtils]: 25: Hoare triple {33611#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {33618#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:41:39,789 INFO L273 TraceCheckUtils]: 26: Hoare triple {33618#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {33618#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:41:39,790 INFO L273 TraceCheckUtils]: 27: Hoare triple {33618#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {33625#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:41:39,791 INFO L273 TraceCheckUtils]: 28: Hoare triple {33625#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {33625#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:41:39,791 INFO L273 TraceCheckUtils]: 29: Hoare triple {33625#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {33632#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:41:39,792 INFO L273 TraceCheckUtils]: 30: Hoare triple {33632#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {33632#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:41:39,793 INFO L273 TraceCheckUtils]: 31: Hoare triple {33632#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {33639#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:41:39,793 INFO L273 TraceCheckUtils]: 32: Hoare triple {33639#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {33639#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:41:39,794 INFO L273 TraceCheckUtils]: 33: Hoare triple {33639#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {33646#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:41:39,795 INFO L273 TraceCheckUtils]: 34: Hoare triple {33646#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {33646#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:41:39,795 INFO L273 TraceCheckUtils]: 35: Hoare triple {33646#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {33653#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:41:39,796 INFO L273 TraceCheckUtils]: 36: Hoare triple {33653#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {33653#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:41:39,797 INFO L273 TraceCheckUtils]: 37: Hoare triple {33653#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {33660#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:41:39,797 INFO L273 TraceCheckUtils]: 38: Hoare triple {33660#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {33660#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:41:39,798 INFO L273 TraceCheckUtils]: 39: Hoare triple {33660#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {33667#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} is VALID [2019-01-31 14:41:39,799 INFO L273 TraceCheckUtils]: 40: Hoare triple {33667#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} assume i <= n * 4; {33667#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} is VALID [2019-01-31 14:41:39,799 INFO L273 TraceCheckUtils]: 41: Hoare triple {33667#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} assume a[i] != 23;i := i + 4; {33674#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:41:39,800 INFO L273 TraceCheckUtils]: 42: Hoare triple {33674#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {33674#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:41:39,801 INFO L273 TraceCheckUtils]: 43: Hoare triple {33674#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {33681#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:41:39,802 INFO L273 TraceCheckUtils]: 44: Hoare triple {33681#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {33681#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:41:39,802 INFO L273 TraceCheckUtils]: 45: Hoare triple {33681#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {33688#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:41:39,803 INFO L273 TraceCheckUtils]: 46: Hoare triple {33688#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {33688#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:41:39,804 INFO L273 TraceCheckUtils]: 47: Hoare triple {33688#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {33695#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:41:39,804 INFO L273 TraceCheckUtils]: 48: Hoare triple {33695#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {33695#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:41:39,805 INFO L273 TraceCheckUtils]: 49: Hoare triple {33695#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {33702#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:41:39,806 INFO L273 TraceCheckUtils]: 50: Hoare triple {33702#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {33702#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:41:39,806 INFO L273 TraceCheckUtils]: 51: Hoare triple {33702#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {33709#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:41:39,807 INFO L273 TraceCheckUtils]: 52: Hoare triple {33709#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {33709#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:41:39,808 INFO L273 TraceCheckUtils]: 53: Hoare triple {33709#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {33716#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:41:39,808 INFO L273 TraceCheckUtils]: 54: Hoare triple {33716#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {33716#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:41:39,809 INFO L273 TraceCheckUtils]: 55: Hoare triple {33716#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {33723#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:41:39,810 INFO L273 TraceCheckUtils]: 56: Hoare triple {33723#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {33723#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:41:39,810 INFO L273 TraceCheckUtils]: 57: Hoare triple {33723#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {33730#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:41:39,811 INFO L273 TraceCheckUtils]: 58: Hoare triple {33730#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {33730#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:41:39,812 INFO L273 TraceCheckUtils]: 59: Hoare triple {33730#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {33737#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:41:39,812 INFO L273 TraceCheckUtils]: 60: Hoare triple {33737#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {33737#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:41:39,813 INFO L273 TraceCheckUtils]: 61: Hoare triple {33737#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {33744#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:41:39,814 INFO L273 TraceCheckUtils]: 62: Hoare triple {33744#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {33744#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:41:39,814 INFO L273 TraceCheckUtils]: 63: Hoare triple {33744#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {33751#(and (= main_i 128) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:41:39,815 INFO L273 TraceCheckUtils]: 64: Hoare triple {33751#(and (= main_i 128) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {33751#(and (= main_i 128) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:41:39,816 INFO L273 TraceCheckUtils]: 65: Hoare triple {33751#(and (= main_i 128) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {33758#(and (= main_i 132) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:41:39,816 INFO L273 TraceCheckUtils]: 66: Hoare triple {33758#(and (= main_i 132) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {33758#(and (= main_i 132) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:41:39,817 INFO L273 TraceCheckUtils]: 67: Hoare triple {33758#(and (= main_i 132) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {33765#(and (= main_i 136) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:41:39,818 INFO L273 TraceCheckUtils]: 68: Hoare triple {33765#(and (= main_i 136) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {33765#(and (= main_i 136) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:41:39,819 INFO L273 TraceCheckUtils]: 69: Hoare triple {33765#(and (= main_i 136) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {33772#(and (= 23 (select main_a (* 4 main_n))) (= main_i 140))} is VALID [2019-01-31 14:41:39,819 INFO L273 TraceCheckUtils]: 70: Hoare triple {33772#(and (= 23 (select main_a (* 4 main_n))) (= main_i 140))} assume i <= n * 4; {33772#(and (= 23 (select main_a (* 4 main_n))) (= main_i 140))} is VALID [2019-01-31 14:41:39,820 INFO L273 TraceCheckUtils]: 71: Hoare triple {33772#(and (= 23 (select main_a (* 4 main_n))) (= main_i 140))} assume a[i] != 23;i := i + 4; {33779#(and (= main_i 144) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:41:39,821 INFO L273 TraceCheckUtils]: 72: Hoare triple {33779#(and (= main_i 144) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {33779#(and (= main_i 144) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:41:39,821 INFO L273 TraceCheckUtils]: 73: Hoare triple {33779#(and (= main_i 144) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {33786#(and (= main_i 148) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:41:39,822 INFO L273 TraceCheckUtils]: 74: Hoare triple {33786#(and (= main_i 148) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {33786#(and (= main_i 148) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:41:39,823 INFO L273 TraceCheckUtils]: 75: Hoare triple {33786#(and (= main_i 148) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {33793#(and (= main_i 152) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:41:39,823 INFO L273 TraceCheckUtils]: 76: Hoare triple {33793#(and (= main_i 152) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {33793#(and (= main_i 152) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:41:39,824 INFO L273 TraceCheckUtils]: 77: Hoare triple {33793#(and (= main_i 152) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {33800#(and (= main_i 156) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:41:39,825 INFO L273 TraceCheckUtils]: 78: Hoare triple {33800#(and (= main_i 156) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {33800#(and (= main_i 156) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:41:39,825 INFO L273 TraceCheckUtils]: 79: Hoare triple {33800#(and (= main_i 156) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {33807#(and (= main_i 160) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:41:39,826 INFO L273 TraceCheckUtils]: 80: Hoare triple {33807#(and (= main_i 160) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {33807#(and (= main_i 160) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:41:39,827 INFO L273 TraceCheckUtils]: 81: Hoare triple {33807#(and (= main_i 160) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {33814#(and (= 23 (select main_a (* 4 main_n))) (= main_i 164))} is VALID [2019-01-31 14:41:39,827 INFO L273 TraceCheckUtils]: 82: Hoare triple {33814#(and (= 23 (select main_a (* 4 main_n))) (= main_i 164))} assume i <= n * 4; {33814#(and (= 23 (select main_a (* 4 main_n))) (= main_i 164))} is VALID [2019-01-31 14:41:39,828 INFO L273 TraceCheckUtils]: 83: Hoare triple {33814#(and (= 23 (select main_a (* 4 main_n))) (= main_i 164))} assume a[i] != 23;i := i + 4; {33821#(and (= main_i 168) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:41:39,829 INFO L273 TraceCheckUtils]: 84: Hoare triple {33821#(and (= main_i 168) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {33821#(and (= main_i 168) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:41:39,829 INFO L273 TraceCheckUtils]: 85: Hoare triple {33821#(and (= main_i 168) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {33828#(and (= main_i 172) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:41:39,830 INFO L273 TraceCheckUtils]: 86: Hoare triple {33828#(and (= main_i 172) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {33828#(and (= main_i 172) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:41:39,831 INFO L273 TraceCheckUtils]: 87: Hoare triple {33828#(and (= main_i 172) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {33835#(and (= main_i 176) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:41:39,832 INFO L273 TraceCheckUtils]: 88: Hoare triple {33835#(and (= main_i 176) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {33835#(and (= main_i 176) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:41:39,832 INFO L273 TraceCheckUtils]: 89: Hoare triple {33835#(and (= main_i 176) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {33842#(and (= main_i 180) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:41:39,833 INFO L273 TraceCheckUtils]: 90: Hoare triple {33842#(and (= main_i 180) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {33842#(and (= main_i 180) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:41:39,834 INFO L273 TraceCheckUtils]: 91: Hoare triple {33842#(and (= main_i 180) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {33849#(and (= main_i 184) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:41:39,834 INFO L273 TraceCheckUtils]: 92: Hoare triple {33849#(and (= main_i 184) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {33849#(and (= main_i 184) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:41:39,835 INFO L273 TraceCheckUtils]: 93: Hoare triple {33849#(and (= main_i 184) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {33856#(and (= main_i 188) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:41:39,836 INFO L273 TraceCheckUtils]: 94: Hoare triple {33856#(and (= main_i 188) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {33856#(and (= main_i 188) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:41:39,836 INFO L273 TraceCheckUtils]: 95: Hoare triple {33856#(and (= main_i 188) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {33863#(and (= main_i 192) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:41:39,837 INFO L273 TraceCheckUtils]: 96: Hoare triple {33863#(and (= main_i 192) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {33863#(and (= main_i 192) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:41:39,838 INFO L273 TraceCheckUtils]: 97: Hoare triple {33863#(and (= main_i 192) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {33870#(and (= main_i 196) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:41:39,838 INFO L273 TraceCheckUtils]: 98: Hoare triple {33870#(and (= main_i 196) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {33870#(and (= main_i 196) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:41:39,839 INFO L273 TraceCheckUtils]: 99: Hoare triple {33870#(and (= main_i 196) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {33877#(and (= main_i 200) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:41:39,840 INFO L273 TraceCheckUtils]: 100: Hoare triple {33877#(and (= main_i 200) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {33881#(and (= main_i 200) (<= main_i (* 4 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:41:39,840 INFO L273 TraceCheckUtils]: 101: Hoare triple {33881#(and (= main_i 200) (<= main_i (* 4 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {33526#(and (< 50 main_n) (<= main_i 204))} is VALID [2019-01-31 14:41:39,841 INFO L273 TraceCheckUtils]: 102: Hoare triple {33526#(and (< 50 main_n) (<= main_i 204))} assume !(i <= n * 4); {33473#false} is VALID [2019-01-31 14:41:39,868 INFO L134 CoverageAnalysis]: Checked inductivity of 2550 backedges. 0 proven. 2550 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-31 14:41:39,868 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2019-01-31 14:41:47,504 INFO L273 TraceCheckUtils]: 102: Hoare triple {33888#(<= main_i (* 4 main_n))} assume !(i <= n * 4); {33473#false} is VALID [2019-01-31 14:41:47,505 INFO L273 TraceCheckUtils]: 101: Hoare triple {33892#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} assume a[i] != 23;i := i + 4; {33888#(<= main_i (* 4 main_n))} is VALID [2019-01-31 14:41:47,505 INFO L273 TraceCheckUtils]: 100: Hoare triple {33896#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} assume i <= n * 4; {33892#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} is VALID [2019-01-31 14:41:47,506 INFO L273 TraceCheckUtils]: 99: Hoare triple {33900#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume a[i] != 23;i := i + 4; {33896#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} is VALID [2019-01-31 14:41:47,506 INFO L273 TraceCheckUtils]: 98: Hoare triple {33900#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume i <= n * 4; {33900#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2019-01-31 14:41:47,507 INFO L273 TraceCheckUtils]: 97: Hoare triple {33907#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume a[i] != 23;i := i + 4; {33900#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2019-01-31 14:41:47,507 INFO L273 TraceCheckUtils]: 96: Hoare triple {33907#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume i <= n * 4; {33907#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2019-01-31 14:41:47,508 INFO L273 TraceCheckUtils]: 95: Hoare triple {33914#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume a[i] != 23;i := i + 4; {33907#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2019-01-31 14:41:47,509 INFO L273 TraceCheckUtils]: 94: Hoare triple {33914#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume i <= n * 4; {33914#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2019-01-31 14:41:47,510 INFO L273 TraceCheckUtils]: 93: Hoare triple {33921#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume a[i] != 23;i := i + 4; {33914#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2019-01-31 14:41:47,511 INFO L273 TraceCheckUtils]: 92: Hoare triple {33921#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume i <= n * 4; {33921#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2019-01-31 14:41:47,512 INFO L273 TraceCheckUtils]: 91: Hoare triple {33928#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {33921#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2019-01-31 14:41:47,512 INFO L273 TraceCheckUtils]: 90: Hoare triple {33928#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume i <= n * 4; {33928#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2019-01-31 14:41:47,513 INFO L273 TraceCheckUtils]: 89: Hoare triple {33935#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume a[i] != 23;i := i + 4; {33928#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2019-01-31 14:41:47,514 INFO L273 TraceCheckUtils]: 88: Hoare triple {33935#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume i <= n * 4; {33935#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2019-01-31 14:41:47,515 INFO L273 TraceCheckUtils]: 87: Hoare triple {33942#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {33935#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2019-01-31 14:41:47,515 INFO L273 TraceCheckUtils]: 86: Hoare triple {33942#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume i <= n * 4; {33942#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2019-01-31 14:41:47,516 INFO L273 TraceCheckUtils]: 85: Hoare triple {33949#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {33942#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2019-01-31 14:41:47,517 INFO L273 TraceCheckUtils]: 84: Hoare triple {33949#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume i <= n * 4; {33949#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2019-01-31 14:41:47,518 INFO L273 TraceCheckUtils]: 83: Hoare triple {33956#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {33949#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2019-01-31 14:41:47,518 INFO L273 TraceCheckUtils]: 82: Hoare triple {33956#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume i <= n * 4; {33956#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2019-01-31 14:41:47,519 INFO L273 TraceCheckUtils]: 81: Hoare triple {33963#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} assume a[i] != 23;i := i + 4; {33956#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2019-01-31 14:41:47,520 INFO L273 TraceCheckUtils]: 80: Hoare triple {33963#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} assume i <= n * 4; {33963#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} is VALID [2019-01-31 14:41:47,521 INFO L273 TraceCheckUtils]: 79: Hoare triple {33970#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {33963#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} is VALID [2019-01-31 14:41:47,521 INFO L273 TraceCheckUtils]: 78: Hoare triple {33970#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} assume i <= n * 4; {33970#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} is VALID [2019-01-31 14:41:47,523 INFO L273 TraceCheckUtils]: 77: Hoare triple {33977#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {33970#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} is VALID [2019-01-31 14:41:47,523 INFO L273 TraceCheckUtils]: 76: Hoare triple {33977#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} assume i <= n * 4; {33977#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} is VALID [2019-01-31 14:41:47,524 INFO L273 TraceCheckUtils]: 75: Hoare triple {33984#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} assume a[i] != 23;i := i + 4; {33977#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} is VALID [2019-01-31 14:41:47,525 INFO L273 TraceCheckUtils]: 74: Hoare triple {33984#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} assume i <= n * 4; {33984#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} is VALID [2019-01-31 14:41:47,526 INFO L273 TraceCheckUtils]: 73: Hoare triple {33991#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {33984#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} is VALID [2019-01-31 14:41:47,526 INFO L273 TraceCheckUtils]: 72: Hoare triple {33991#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} assume i <= n * 4; {33991#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} is VALID [2019-01-31 14:41:47,527 INFO L273 TraceCheckUtils]: 71: Hoare triple {33998#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} assume a[i] != 23;i := i + 4; {33991#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} is VALID [2019-01-31 14:41:47,528 INFO L273 TraceCheckUtils]: 70: Hoare triple {33998#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} assume i <= n * 4; {33998#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} is VALID [2019-01-31 14:41:47,529 INFO L273 TraceCheckUtils]: 69: Hoare triple {34005#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} assume a[i] != 23;i := i + 4; {33998#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} is VALID [2019-01-31 14:41:47,529 INFO L273 TraceCheckUtils]: 68: Hoare triple {34005#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} assume i <= n * 4; {34005#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} is VALID [2019-01-31 14:41:47,530 INFO L273 TraceCheckUtils]: 67: Hoare triple {34012#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} assume a[i] != 23;i := i + 4; {34005#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} is VALID [2019-01-31 14:41:47,531 INFO L273 TraceCheckUtils]: 66: Hoare triple {34012#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} assume i <= n * 4; {34012#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} is VALID [2019-01-31 14:41:47,532 INFO L273 TraceCheckUtils]: 65: Hoare triple {34019#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} assume a[i] != 23;i := i + 4; {34012#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} is VALID [2019-01-31 14:41:47,532 INFO L273 TraceCheckUtils]: 64: Hoare triple {34019#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} assume i <= n * 4; {34019#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} is VALID [2019-01-31 14:41:47,533 INFO L273 TraceCheckUtils]: 63: Hoare triple {34026#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} assume a[i] != 23;i := i + 4; {34019#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} is VALID [2019-01-31 14:41:47,534 INFO L273 TraceCheckUtils]: 62: Hoare triple {34026#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} assume i <= n * 4; {34026#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} is VALID [2019-01-31 14:41:47,535 INFO L273 TraceCheckUtils]: 61: Hoare triple {34033#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} assume a[i] != 23;i := i + 4; {34026#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} is VALID [2019-01-31 14:41:47,536 INFO L273 TraceCheckUtils]: 60: Hoare triple {34033#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} assume i <= n * 4; {34033#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} is VALID [2019-01-31 14:41:47,537 INFO L273 TraceCheckUtils]: 59: Hoare triple {34040#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {34033#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} is VALID [2019-01-31 14:41:47,537 INFO L273 TraceCheckUtils]: 58: Hoare triple {34040#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} assume i <= n * 4; {34040#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} is VALID [2019-01-31 14:41:47,538 INFO L273 TraceCheckUtils]: 57: Hoare triple {34047#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {34040#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} is VALID [2019-01-31 14:41:47,539 INFO L273 TraceCheckUtils]: 56: Hoare triple {34047#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} assume i <= n * 4; {34047#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} is VALID [2019-01-31 14:41:47,540 INFO L273 TraceCheckUtils]: 55: Hoare triple {34054#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {34047#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} is VALID [2019-01-31 14:41:47,540 INFO L273 TraceCheckUtils]: 54: Hoare triple {34054#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} assume i <= n * 4; {34054#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} is VALID [2019-01-31 14:41:47,541 INFO L273 TraceCheckUtils]: 53: Hoare triple {34061#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} assume a[i] != 23;i := i + 4; {34054#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} is VALID [2019-01-31 14:41:47,542 INFO L273 TraceCheckUtils]: 52: Hoare triple {34061#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} assume i <= n * 4; {34061#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} is VALID [2019-01-31 14:41:47,543 INFO L273 TraceCheckUtils]: 51: Hoare triple {34068#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {34061#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} is VALID [2019-01-31 14:41:47,543 INFO L273 TraceCheckUtils]: 50: Hoare triple {34068#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} assume i <= n * 4; {34068#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} is VALID [2019-01-31 14:41:47,545 INFO L273 TraceCheckUtils]: 49: Hoare triple {34075#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} assume a[i] != 23;i := i + 4; {34068#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} is VALID [2019-01-31 14:41:47,545 INFO L273 TraceCheckUtils]: 48: Hoare triple {34075#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} assume i <= n * 4; {34075#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} is VALID [2019-01-31 14:41:47,546 INFO L273 TraceCheckUtils]: 47: Hoare triple {34082#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} assume a[i] != 23;i := i + 4; {34075#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} is VALID [2019-01-31 14:41:47,547 INFO L273 TraceCheckUtils]: 46: Hoare triple {34082#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} assume i <= n * 4; {34082#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} is VALID [2019-01-31 14:41:47,548 INFO L273 TraceCheckUtils]: 45: Hoare triple {34089#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} assume a[i] != 23;i := i + 4; {34082#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} is VALID [2019-01-31 14:41:47,548 INFO L273 TraceCheckUtils]: 44: Hoare triple {34089#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} assume i <= n * 4; {34089#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} is VALID [2019-01-31 14:41:47,549 INFO L273 TraceCheckUtils]: 43: Hoare triple {34096#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {34089#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} is VALID [2019-01-31 14:41:47,550 INFO L273 TraceCheckUtils]: 42: Hoare triple {34096#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} assume i <= n * 4; {34096#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} is VALID [2019-01-31 14:41:47,551 INFO L273 TraceCheckUtils]: 41: Hoare triple {34103#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {34096#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} is VALID [2019-01-31 14:41:47,551 INFO L273 TraceCheckUtils]: 40: Hoare triple {34103#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} assume i <= n * 4; {34103#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} is VALID [2019-01-31 14:41:47,552 INFO L273 TraceCheckUtils]: 39: Hoare triple {34110#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} assume a[i] != 23;i := i + 4; {34103#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} is VALID [2019-01-31 14:41:47,553 INFO L273 TraceCheckUtils]: 38: Hoare triple {34110#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} assume i <= n * 4; {34110#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} is VALID [2019-01-31 14:41:47,554 INFO L273 TraceCheckUtils]: 37: Hoare triple {34117#(or (< (* 4 main_n) (+ main_i 128)) (= (select main_a (+ main_i 128)) 23) (< (+ main_i 131) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {34110#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} is VALID [2019-01-31 14:41:47,554 INFO L273 TraceCheckUtils]: 36: Hoare triple {34117#(or (< (* 4 main_n) (+ main_i 128)) (= (select main_a (+ main_i 128)) 23) (< (+ main_i 131) (* 4 main_n)))} assume i <= n * 4; {34117#(or (< (* 4 main_n) (+ main_i 128)) (= (select main_a (+ main_i 128)) 23) (< (+ main_i 131) (* 4 main_n)))} is VALID [2019-01-31 14:41:47,556 INFO L273 TraceCheckUtils]: 35: Hoare triple {34124#(or (< (* 4 main_n) (+ main_i 132)) (< (+ main_i 135) (* 4 main_n)) (= (select main_a (+ main_i 132)) 23))} assume a[i] != 23;i := i + 4; {34117#(or (< (* 4 main_n) (+ main_i 128)) (= (select main_a (+ main_i 128)) 23) (< (+ main_i 131) (* 4 main_n)))} is VALID [2019-01-31 14:41:47,556 INFO L273 TraceCheckUtils]: 34: Hoare triple {34124#(or (< (* 4 main_n) (+ main_i 132)) (< (+ main_i 135) (* 4 main_n)) (= (select main_a (+ main_i 132)) 23))} assume i <= n * 4; {34124#(or (< (* 4 main_n) (+ main_i 132)) (< (+ main_i 135) (* 4 main_n)) (= (select main_a (+ main_i 132)) 23))} is VALID [2019-01-31 14:41:47,557 INFO L273 TraceCheckUtils]: 33: Hoare triple {34131#(or (< (+ main_i 139) (* 4 main_n)) (= (select main_a (+ main_i 136)) 23) (< (* 4 main_n) (+ main_i 136)))} assume a[i] != 23;i := i + 4; {34124#(or (< (* 4 main_n) (+ main_i 132)) (< (+ main_i 135) (* 4 main_n)) (= (select main_a (+ main_i 132)) 23))} is VALID [2019-01-31 14:41:47,558 INFO L273 TraceCheckUtils]: 32: Hoare triple {34131#(or (< (+ main_i 139) (* 4 main_n)) (= (select main_a (+ main_i 136)) 23) (< (* 4 main_n) (+ main_i 136)))} assume i <= n * 4; {34131#(or (< (+ main_i 139) (* 4 main_n)) (= (select main_a (+ main_i 136)) 23) (< (* 4 main_n) (+ main_i 136)))} is VALID [2019-01-31 14:41:47,559 INFO L273 TraceCheckUtils]: 31: Hoare triple {34138#(or (< (* 4 main_n) (+ main_i 140)) (< (+ main_i 143) (* 4 main_n)) (= (select main_a (+ main_i 140)) 23))} assume a[i] != 23;i := i + 4; {34131#(or (< (+ main_i 139) (* 4 main_n)) (= (select main_a (+ main_i 136)) 23) (< (* 4 main_n) (+ main_i 136)))} is VALID [2019-01-31 14:41:47,559 INFO L273 TraceCheckUtils]: 30: Hoare triple {34138#(or (< (* 4 main_n) (+ main_i 140)) (< (+ main_i 143) (* 4 main_n)) (= (select main_a (+ main_i 140)) 23))} assume i <= n * 4; {34138#(or (< (* 4 main_n) (+ main_i 140)) (< (+ main_i 143) (* 4 main_n)) (= (select main_a (+ main_i 140)) 23))} is VALID [2019-01-31 14:41:47,560 INFO L273 TraceCheckUtils]: 29: Hoare triple {34145#(or (= (select main_a (+ main_i 144)) 23) (< (+ main_i 147) (* 4 main_n)) (< (* 4 main_n) (+ main_i 144)))} assume a[i] != 23;i := i + 4; {34138#(or (< (* 4 main_n) (+ main_i 140)) (< (+ main_i 143) (* 4 main_n)) (= (select main_a (+ main_i 140)) 23))} is VALID [2019-01-31 14:41:47,561 INFO L273 TraceCheckUtils]: 28: Hoare triple {34145#(or (= (select main_a (+ main_i 144)) 23) (< (+ main_i 147) (* 4 main_n)) (< (* 4 main_n) (+ main_i 144)))} assume i <= n * 4; {34145#(or (= (select main_a (+ main_i 144)) 23) (< (+ main_i 147) (* 4 main_n)) (< (* 4 main_n) (+ main_i 144)))} is VALID [2019-01-31 14:41:47,562 INFO L273 TraceCheckUtils]: 27: Hoare triple {34152#(or (< (+ main_i 151) (* 4 main_n)) (< (* 4 main_n) (+ main_i 148)) (= (select main_a (+ main_i 148)) 23))} assume a[i] != 23;i := i + 4; {34145#(or (= (select main_a (+ main_i 144)) 23) (< (+ main_i 147) (* 4 main_n)) (< (* 4 main_n) (+ main_i 144)))} is VALID [2019-01-31 14:41:47,562 INFO L273 TraceCheckUtils]: 26: Hoare triple {34152#(or (< (+ main_i 151) (* 4 main_n)) (< (* 4 main_n) (+ main_i 148)) (= (select main_a (+ main_i 148)) 23))} assume i <= n * 4; {34152#(or (< (+ main_i 151) (* 4 main_n)) (< (* 4 main_n) (+ main_i 148)) (= (select main_a (+ main_i 148)) 23))} is VALID [2019-01-31 14:41:47,563 INFO L273 TraceCheckUtils]: 25: Hoare triple {34159#(or (= 23 (select main_a (+ main_i 152))) (< (+ main_i 155) (* 4 main_n)) (< (* 4 main_n) (+ main_i 152)))} assume a[i] != 23;i := i + 4; {34152#(or (< (+ main_i 151) (* 4 main_n)) (< (* 4 main_n) (+ main_i 148)) (= (select main_a (+ main_i 148)) 23))} is VALID [2019-01-31 14:41:47,564 INFO L273 TraceCheckUtils]: 24: Hoare triple {34159#(or (= 23 (select main_a (+ main_i 152))) (< (+ main_i 155) (* 4 main_n)) (< (* 4 main_n) (+ main_i 152)))} assume i <= n * 4; {34159#(or (= 23 (select main_a (+ main_i 152))) (< (+ main_i 155) (* 4 main_n)) (< (* 4 main_n) (+ main_i 152)))} is VALID [2019-01-31 14:41:47,565 INFO L273 TraceCheckUtils]: 23: Hoare triple {34166#(or (< (+ main_i 159) (* 4 main_n)) (= (select main_a (+ main_i 156)) 23) (< (* 4 main_n) (+ main_i 156)))} assume a[i] != 23;i := i + 4; {34159#(or (= 23 (select main_a (+ main_i 152))) (< (+ main_i 155) (* 4 main_n)) (< (* 4 main_n) (+ main_i 152)))} is VALID [2019-01-31 14:41:47,565 INFO L273 TraceCheckUtils]: 22: Hoare triple {34166#(or (< (+ main_i 159) (* 4 main_n)) (= (select main_a (+ main_i 156)) 23) (< (* 4 main_n) (+ main_i 156)))} assume i <= n * 4; {34166#(or (< (+ main_i 159) (* 4 main_n)) (= (select main_a (+ main_i 156)) 23) (< (* 4 main_n) (+ main_i 156)))} is VALID [2019-01-31 14:41:47,567 INFO L273 TraceCheckUtils]: 21: Hoare triple {34173#(or (< (+ main_i 163) (* 4 main_n)) (= (select main_a (+ main_i 160)) 23) (< (* 4 main_n) (+ main_i 160)))} assume a[i] != 23;i := i + 4; {34166#(or (< (+ main_i 159) (* 4 main_n)) (= (select main_a (+ main_i 156)) 23) (< (* 4 main_n) (+ main_i 156)))} is VALID [2019-01-31 14:41:47,567 INFO L273 TraceCheckUtils]: 20: Hoare triple {34173#(or (< (+ main_i 163) (* 4 main_n)) (= (select main_a (+ main_i 160)) 23) (< (* 4 main_n) (+ main_i 160)))} assume i <= n * 4; {34173#(or (< (+ main_i 163) (* 4 main_n)) (= (select main_a (+ main_i 160)) 23) (< (* 4 main_n) (+ main_i 160)))} is VALID [2019-01-31 14:41:47,568 INFO L273 TraceCheckUtils]: 19: Hoare triple {34180#(or (< (* 4 main_n) (+ main_i 164)) (< (+ main_i 167) (* 4 main_n)) (= (select main_a (+ main_i 164)) 23))} assume a[i] != 23;i := i + 4; {34173#(or (< (+ main_i 163) (* 4 main_n)) (= (select main_a (+ main_i 160)) 23) (< (* 4 main_n) (+ main_i 160)))} is VALID [2019-01-31 14:41:47,569 INFO L273 TraceCheckUtils]: 18: Hoare triple {34180#(or (< (* 4 main_n) (+ main_i 164)) (< (+ main_i 167) (* 4 main_n)) (= (select main_a (+ main_i 164)) 23))} assume i <= n * 4; {34180#(or (< (* 4 main_n) (+ main_i 164)) (< (+ main_i 167) (* 4 main_n)) (= (select main_a (+ main_i 164)) 23))} is VALID [2019-01-31 14:41:47,570 INFO L273 TraceCheckUtils]: 17: Hoare triple {34187#(or (= (select main_a (+ main_i 168)) 23) (< (* 4 main_n) (+ main_i 168)) (< (+ main_i 171) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {34180#(or (< (* 4 main_n) (+ main_i 164)) (< (+ main_i 167) (* 4 main_n)) (= (select main_a (+ main_i 164)) 23))} is VALID [2019-01-31 14:41:47,570 INFO L273 TraceCheckUtils]: 16: Hoare triple {34187#(or (= (select main_a (+ main_i 168)) 23) (< (* 4 main_n) (+ main_i 168)) (< (+ main_i 171) (* 4 main_n)))} assume i <= n * 4; {34187#(or (= (select main_a (+ main_i 168)) 23) (< (* 4 main_n) (+ main_i 168)) (< (+ main_i 171) (* 4 main_n)))} is VALID [2019-01-31 14:41:47,571 INFO L273 TraceCheckUtils]: 15: Hoare triple {34194#(or (< (* 4 main_n) (+ main_i 172)) (= (select main_a (+ main_i 172)) 23) (< (+ main_i 175) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {34187#(or (= (select main_a (+ main_i 168)) 23) (< (* 4 main_n) (+ main_i 168)) (< (+ main_i 171) (* 4 main_n)))} is VALID [2019-01-31 14:41:47,572 INFO L273 TraceCheckUtils]: 14: Hoare triple {34194#(or (< (* 4 main_n) (+ main_i 172)) (= (select main_a (+ main_i 172)) 23) (< (+ main_i 175) (* 4 main_n)))} assume i <= n * 4; {34194#(or (< (* 4 main_n) (+ main_i 172)) (= (select main_a (+ main_i 172)) 23) (< (+ main_i 175) (* 4 main_n)))} is VALID [2019-01-31 14:41:47,573 INFO L273 TraceCheckUtils]: 13: Hoare triple {34201#(or (= (select main_a (+ main_i 176)) 23) (< (+ main_i 179) (* 4 main_n)) (< (* 4 main_n) (+ main_i 176)))} assume a[i] != 23;i := i + 4; {34194#(or (< (* 4 main_n) (+ main_i 172)) (= (select main_a (+ main_i 172)) 23) (< (+ main_i 175) (* 4 main_n)))} is VALID [2019-01-31 14:41:47,573 INFO L273 TraceCheckUtils]: 12: Hoare triple {34201#(or (= (select main_a (+ main_i 176)) 23) (< (+ main_i 179) (* 4 main_n)) (< (* 4 main_n) (+ main_i 176)))} assume i <= n * 4; {34201#(or (= (select main_a (+ main_i 176)) 23) (< (+ main_i 179) (* 4 main_n)) (< (* 4 main_n) (+ main_i 176)))} is VALID [2019-01-31 14:41:47,574 INFO L273 TraceCheckUtils]: 11: Hoare triple {34208#(or (< (+ main_i 183) (* 4 main_n)) (= (select main_a (+ main_i 180)) 23) (< (* 4 main_n) (+ main_i 180)))} assume a[i] != 23;i := i + 4; {34201#(or (= (select main_a (+ main_i 176)) 23) (< (+ main_i 179) (* 4 main_n)) (< (* 4 main_n) (+ main_i 176)))} is VALID [2019-01-31 14:41:47,575 INFO L273 TraceCheckUtils]: 10: Hoare triple {34208#(or (< (+ main_i 183) (* 4 main_n)) (= (select main_a (+ main_i 180)) 23) (< (* 4 main_n) (+ main_i 180)))} assume i <= n * 4; {34208#(or (< (+ main_i 183) (* 4 main_n)) (= (select main_a (+ main_i 180)) 23) (< (* 4 main_n) (+ main_i 180)))} is VALID [2019-01-31 14:41:47,576 INFO L273 TraceCheckUtils]: 9: Hoare triple {34215#(or (= (select main_a (+ main_i 184)) 23) (< (+ main_i 187) (* 4 main_n)) (< (* 4 main_n) (+ main_i 184)))} assume a[i] != 23;i := i + 4; {34208#(or (< (+ main_i 183) (* 4 main_n)) (= (select main_a (+ main_i 180)) 23) (< (* 4 main_n) (+ main_i 180)))} is VALID [2019-01-31 14:41:47,577 INFO L273 TraceCheckUtils]: 8: Hoare triple {34215#(or (= (select main_a (+ main_i 184)) 23) (< (+ main_i 187) (* 4 main_n)) (< (* 4 main_n) (+ main_i 184)))} assume i <= n * 4; {34215#(or (= (select main_a (+ main_i 184)) 23) (< (+ main_i 187) (* 4 main_n)) (< (* 4 main_n) (+ main_i 184)))} is VALID [2019-01-31 14:41:47,578 INFO L273 TraceCheckUtils]: 7: Hoare triple {34222#(or (< (+ main_i 191) (* 4 main_n)) (< (* 4 main_n) (+ main_i 188)) (= 23 (select main_a (+ main_i 188))))} assume a[i] != 23;i := i + 4; {34215#(or (= (select main_a (+ main_i 184)) 23) (< (+ main_i 187) (* 4 main_n)) (< (* 4 main_n) (+ main_i 184)))} is VALID [2019-01-31 14:41:47,578 INFO L273 TraceCheckUtils]: 6: Hoare triple {34222#(or (< (+ main_i 191) (* 4 main_n)) (< (* 4 main_n) (+ main_i 188)) (= 23 (select main_a (+ main_i 188))))} assume i <= n * 4; {34222#(or (< (+ main_i 191) (* 4 main_n)) (< (* 4 main_n) (+ main_i 188)) (= 23 (select main_a (+ main_i 188))))} is VALID [2019-01-31 14:41:47,579 INFO L273 TraceCheckUtils]: 5: Hoare triple {34229#(or (= 23 (select main_a (+ main_i 192))) (< (+ main_i 195) (* 4 main_n)) (< (* 4 main_n) (+ main_i 192)))} assume a[i] != 23;i := i + 4; {34222#(or (< (+ main_i 191) (* 4 main_n)) (< (* 4 main_n) (+ main_i 188)) (= 23 (select main_a (+ main_i 188))))} is VALID [2019-01-31 14:41:47,580 INFO L273 TraceCheckUtils]: 4: Hoare triple {34229#(or (= 23 (select main_a (+ main_i 192))) (< (+ main_i 195) (* 4 main_n)) (< (* 4 main_n) (+ main_i 192)))} assume i <= n * 4; {34229#(or (= 23 (select main_a (+ main_i 192))) (< (+ main_i 195) (* 4 main_n)) (< (* 4 main_n) (+ main_i 192)))} is VALID [2019-01-31 14:41:47,581 INFO L273 TraceCheckUtils]: 3: Hoare triple {34236#(or (= 23 (select main_a (+ main_i 196))) (< (+ main_i 199) (* 4 main_n)) (< (* 4 main_n) (+ main_i 196)))} assume a[i] != 23;i := i + 4; {34229#(or (= 23 (select main_a (+ main_i 192))) (< (+ main_i 195) (* 4 main_n)) (< (* 4 main_n) (+ main_i 192)))} is VALID [2019-01-31 14:41:47,581 INFO L273 TraceCheckUtils]: 2: Hoare triple {34236#(or (= 23 (select main_a (+ main_i 196))) (< (+ main_i 199) (* 4 main_n)) (< (* 4 main_n) (+ main_i 196)))} assume i <= n * 4; {34236#(or (= 23 (select main_a (+ main_i 196))) (< (+ main_i 199) (* 4 main_n)) (< (* 4 main_n) (+ main_i 196)))} is VALID [2019-01-31 14:41:47,582 INFO L273 TraceCheckUtils]: 1: Hoare triple {34243#(or (< (* 4 main_n) (+ main_i 200)) (< (+ main_i 203) (* 4 main_n)) (= 23 (select main_a (+ main_i 200))))} assume a[i] != 23;i := i + 4; {34236#(or (= 23 (select main_a (+ main_i 196))) (< (+ main_i 199) (* 4 main_n)) (< (* 4 main_n) (+ main_i 196)))} is VALID [2019-01-31 14:41:47,583 INFO L273 TraceCheckUtils]: 0: Hoare triple {33472#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {34243#(or (< (* 4 main_n) (+ main_i 200)) (< (+ main_i 203) (* 4 main_n)) (= 23 (select main_a (+ main_i 200))))} is VALID [2019-01-31 14:41:47,625 INFO L134 CoverageAnalysis]: Checked inductivity of 2550 backedges. 0 proven. 2550 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-31 14:41:47,644 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-01-31 14:41:47,644 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [53, 53, 53] total 158 [2019-01-31 14:41:47,644 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-01-31 14:41:47,645 INFO L78 Accepts]: Start accepts. Automaton has 107 states. Word has length 103 [2019-01-31 14:41:47,645 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-01-31 14:41:47,645 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 107 states. [2019-01-31 14:41:47,922 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 205 edges. 205 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-01-31 14:41:47,922 INFO L459 AbstractCegarLoop]: Interpolant automaton has 107 states [2019-01-31 14:41:47,923 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 107 interpolants. [2019-01-31 14:41:47,924 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3082, Invalid=22358, Unknown=0, NotChecked=0, Total=25440 [2019-01-31 14:41:47,924 INFO L87 Difference]: Start difference. First operand 104 states and 104 transitions. Second operand 107 states. [2019-01-31 14:42:09,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 14:42:09,573 INFO L93 Difference]: Finished difference Result 108 states and 108 transitions. [2019-01-31 14:42:09,573 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2019-01-31 14:42:09,574 INFO L78 Accepts]: Start accepts. Automaton has 107 states. Word has length 103 [2019-01-31 14:42:09,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-31 14:42:09,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 107 states. [2019-01-31 14:42:09,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 108 transitions. [2019-01-31 14:42:09,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 107 states. [2019-01-31 14:42:09,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 108 transitions. [2019-01-31 14:42:09,576 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 55 states and 108 transitions. [2019-01-31 14:42:09,693 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 108 edges. 108 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-01-31 14:42:09,695 INFO L225 Difference]: With dead ends: 108 [2019-01-31 14:42:09,695 INFO L226 Difference]: Without dead ends: 107 [2019-01-31 14:42:09,696 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 257 GetRequests, 98 SyntacticMatches, 1 SemanticMatches, 158 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5720 ImplicationChecksByTransitivity, 14.1s TimeCoverageRelationStatistics Valid=3082, Invalid=22358, Unknown=0, NotChecked=0, Total=25440 [2019-01-31 14:42:09,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2019-01-31 14:42:09,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 106. [2019-01-31 14:42:09,811 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-01-31 14:42:09,811 INFO L82 GeneralOperation]: Start isEquivalent. First operand 107 states. Second operand 106 states. [2019-01-31 14:42:09,811 INFO L74 IsIncluded]: Start isIncluded. First operand 107 states. Second operand 106 states. [2019-01-31 14:42:09,811 INFO L87 Difference]: Start difference. First operand 107 states. Second operand 106 states. [2019-01-31 14:42:09,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 14:42:09,812 INFO L93 Difference]: Finished difference Result 107 states and 107 transitions. [2019-01-31 14:42:09,812 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 107 transitions. [2019-01-31 14:42:09,812 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-31 14:42:09,812 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-01-31 14:42:09,812 INFO L74 IsIncluded]: Start isIncluded. First operand 106 states. Second operand 107 states. [2019-01-31 14:42:09,813 INFO L87 Difference]: Start difference. First operand 106 states. Second operand 107 states. [2019-01-31 14:42:09,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 14:42:09,814 INFO L93 Difference]: Finished difference Result 107 states and 107 transitions. [2019-01-31 14:42:09,814 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 107 transitions. [2019-01-31 14:42:09,814 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-31 14:42:09,814 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-01-31 14:42:09,814 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-01-31 14:42:09,814 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-01-31 14:42:09,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 106 states. [2019-01-31 14:42:09,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 106 transitions. [2019-01-31 14:42:09,816 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 106 transitions. Word has length 103 [2019-01-31 14:42:09,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-31 14:42:09,816 INFO L480 AbstractCegarLoop]: Abstraction has 106 states and 106 transitions. [2019-01-31 14:42:09,816 INFO L481 AbstractCegarLoop]: Interpolant automaton has 107 states. [2019-01-31 14:42:09,816 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 106 transitions. [2019-01-31 14:42:09,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2019-01-31 14:42:09,816 INFO L394 BasicCegarLoop]: Found error trace [2019-01-31 14:42:09,817 INFO L402 BasicCegarLoop]: trace histogram [52, 51, 1, 1] [2019-01-31 14:42:09,817 INFO L423 AbstractCegarLoop]: === Iteration 52 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-01-31 14:42:09,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-31 14:42:09,817 INFO L82 PathProgramCache]: Analyzing trace with hash 1799123078, now seen corresponding path program 51 times [2019-01-31 14:42:09,817 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-01-31 14:42:09,818 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-31 14:42:09,818 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-01-31 14:42:09,818 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-31 14:42:09,818 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-01-31 14:42:09,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-31 14:42:13,243 INFO L273 TraceCheckUtils]: 0: Hoare triple {34779#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {34781#(and (or (and (<= 0 main_i) (= 23 (select main_a (* 4 main_n)))) (< 51 main_n)) (or (<= main_n 51) (<= main_i 0)))} is VALID [2019-01-31 14:42:13,245 INFO L273 TraceCheckUtils]: 1: Hoare triple {34781#(and (or (and (<= 0 main_i) (= 23 (select main_a (* 4 main_n)))) (< 51 main_n)) (or (<= main_n 51) (<= main_i 0)))} assume a[i] != 23;i := i + 4; {34782#(and (or (<= main_n 51) (<= main_i 4)) (or (< 51 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i))))} is VALID [2019-01-31 14:42:13,245 INFO L273 TraceCheckUtils]: 2: Hoare triple {34782#(and (or (<= main_n 51) (<= main_i 4)) (or (< 51 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i))))} assume i <= n * 4; {34782#(and (or (<= main_n 51) (<= main_i 4)) (or (< 51 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i))))} is VALID [2019-01-31 14:42:13,246 INFO L273 TraceCheckUtils]: 3: Hoare triple {34782#(and (or (<= main_n 51) (<= main_i 4)) (or (< 51 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i))))} assume a[i] != 23;i := i + 4; {34783#(and (or (<= main_i 8) (<= main_n 51)) (or (< 51 main_n) (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:42:13,247 INFO L273 TraceCheckUtils]: 4: Hoare triple {34783#(and (or (<= main_i 8) (<= main_n 51)) (or (< 51 main_n) (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {34783#(and (or (<= main_i 8) (<= main_n 51)) (or (< 51 main_n) (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:42:13,248 INFO L273 TraceCheckUtils]: 5: Hoare triple {34783#(and (or (<= main_i 8) (<= main_n 51)) (or (< 51 main_n) (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {34784#(and (or (< 51 main_n) (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 51) (<= main_i 12)))} is VALID [2019-01-31 14:42:13,249 INFO L273 TraceCheckUtils]: 6: Hoare triple {34784#(and (or (< 51 main_n) (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 51) (<= main_i 12)))} assume i <= n * 4; {34784#(and (or (< 51 main_n) (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 51) (<= main_i 12)))} is VALID [2019-01-31 14:42:13,250 INFO L273 TraceCheckUtils]: 7: Hoare triple {34784#(and (or (< 51 main_n) (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 51) (<= main_i 12)))} assume a[i] != 23;i := i + 4; {34785#(and (or (< 51 main_n) (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 51) (<= main_i 16)))} is VALID [2019-01-31 14:42:13,251 INFO L273 TraceCheckUtils]: 8: Hoare triple {34785#(and (or (< 51 main_n) (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 51) (<= main_i 16)))} assume i <= n * 4; {34785#(and (or (< 51 main_n) (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 51) (<= main_i 16)))} is VALID [2019-01-31 14:42:13,252 INFO L273 TraceCheckUtils]: 9: Hoare triple {34785#(and (or (< 51 main_n) (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 51) (<= main_i 16)))} assume a[i] != 23;i := i + 4; {34786#(and (or (<= main_n 51) (<= main_i 20)) (or (< 51 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:42:13,253 INFO L273 TraceCheckUtils]: 10: Hoare triple {34786#(and (or (<= main_n 51) (<= main_i 20)) (or (< 51 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {34786#(and (or (<= main_n 51) (<= main_i 20)) (or (< 51 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:42:13,254 INFO L273 TraceCheckUtils]: 11: Hoare triple {34786#(and (or (<= main_n 51) (<= main_i 20)) (or (< 51 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {34787#(and (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 51 main_n)) (or (<= main_n 51) (<= main_i 24)))} is VALID [2019-01-31 14:42:13,254 INFO L273 TraceCheckUtils]: 12: Hoare triple {34787#(and (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 51 main_n)) (or (<= main_n 51) (<= main_i 24)))} assume i <= n * 4; {34787#(and (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 51 main_n)) (or (<= main_n 51) (<= main_i 24)))} is VALID [2019-01-31 14:42:13,256 INFO L273 TraceCheckUtils]: 13: Hoare triple {34787#(and (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 51 main_n)) (or (<= main_n 51) (<= main_i 24)))} assume a[i] != 23;i := i + 4; {34788#(and (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 51 main_n)) (or (<= main_n 51) (<= main_i 28)))} is VALID [2019-01-31 14:42:13,256 INFO L273 TraceCheckUtils]: 14: Hoare triple {34788#(and (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 51 main_n)) (or (<= main_n 51) (<= main_i 28)))} assume i <= n * 4; {34788#(and (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 51 main_n)) (or (<= main_n 51) (<= main_i 28)))} is VALID [2019-01-31 14:42:13,257 INFO L273 TraceCheckUtils]: 15: Hoare triple {34788#(and (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 51 main_n)) (or (<= main_n 51) (<= main_i 28)))} assume a[i] != 23;i := i + 4; {34789#(and (or (<= main_i 32) (<= main_n 51)) (or (< 51 main_n) (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:42:13,258 INFO L273 TraceCheckUtils]: 16: Hoare triple {34789#(and (or (<= main_i 32) (<= main_n 51)) (or (< 51 main_n) (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {34789#(and (or (<= main_i 32) (<= main_n 51)) (or (< 51 main_n) (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:42:13,259 INFO L273 TraceCheckUtils]: 17: Hoare triple {34789#(and (or (<= main_i 32) (<= main_n 51)) (or (< 51 main_n) (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {34790#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i)) (< 51 main_n)) (or (<= main_i 36) (<= main_n 51)))} is VALID [2019-01-31 14:42:13,260 INFO L273 TraceCheckUtils]: 18: Hoare triple {34790#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i)) (< 51 main_n)) (or (<= main_i 36) (<= main_n 51)))} assume i <= n * 4; {34790#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i)) (< 51 main_n)) (or (<= main_i 36) (<= main_n 51)))} is VALID [2019-01-31 14:42:13,261 INFO L273 TraceCheckUtils]: 19: Hoare triple {34790#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i)) (< 51 main_n)) (or (<= main_i 36) (<= main_n 51)))} assume a[i] != 23;i := i + 4; {34791#(and (or (<= main_i 40) (<= main_n 51)) (or (< 51 main_n) (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:42:13,262 INFO L273 TraceCheckUtils]: 20: Hoare triple {34791#(and (or (<= main_i 40) (<= main_n 51)) (or (< 51 main_n) (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {34791#(and (or (<= main_i 40) (<= main_n 51)) (or (< 51 main_n) (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:42:13,263 INFO L273 TraceCheckUtils]: 21: Hoare triple {34791#(and (or (<= main_i 40) (<= main_n 51)) (or (< 51 main_n) (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {34792#(and (or (<= main_n 51) (<= main_i 44)) (or (< 51 main_n) (and (<= 44 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:42:13,263 INFO L273 TraceCheckUtils]: 22: Hoare triple {34792#(and (or (<= main_n 51) (<= main_i 44)) (or (< 51 main_n) (and (<= 44 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {34792#(and (or (<= main_n 51) (<= main_i 44)) (or (< 51 main_n) (and (<= 44 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:42:13,264 INFO L273 TraceCheckUtils]: 23: Hoare triple {34792#(and (or (<= main_n 51) (<= main_i 44)) (or (< 51 main_n) (and (<= 44 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {34793#(and (or (<= main_n 51) (<= main_i 48)) (or (and (<= 48 main_i) (= 23 (select main_a (* 4 main_n)))) (< 51 main_n)))} is VALID [2019-01-31 14:42:13,265 INFO L273 TraceCheckUtils]: 24: Hoare triple {34793#(and (or (<= main_n 51) (<= main_i 48)) (or (and (<= 48 main_i) (= 23 (select main_a (* 4 main_n)))) (< 51 main_n)))} assume i <= n * 4; {34793#(and (or (<= main_n 51) (<= main_i 48)) (or (and (<= 48 main_i) (= 23 (select main_a (* 4 main_n)))) (< 51 main_n)))} is VALID [2019-01-31 14:42:13,266 INFO L273 TraceCheckUtils]: 25: Hoare triple {34793#(and (or (<= main_n 51) (<= main_i 48)) (or (and (<= 48 main_i) (= 23 (select main_a (* 4 main_n)))) (< 51 main_n)))} assume a[i] != 23;i := i + 4; {34794#(and (or (<= main_i 52) (<= main_n 51)) (or (and (<= 52 main_i) (= 23 (select main_a (* 4 main_n)))) (< 51 main_n)))} is VALID [2019-01-31 14:42:13,267 INFO L273 TraceCheckUtils]: 26: Hoare triple {34794#(and (or (<= main_i 52) (<= main_n 51)) (or (and (<= 52 main_i) (= 23 (select main_a (* 4 main_n)))) (< 51 main_n)))} assume i <= n * 4; {34794#(and (or (<= main_i 52) (<= main_n 51)) (or (and (<= 52 main_i) (= 23 (select main_a (* 4 main_n)))) (< 51 main_n)))} is VALID [2019-01-31 14:42:13,268 INFO L273 TraceCheckUtils]: 27: Hoare triple {34794#(and (or (<= main_i 52) (<= main_n 51)) (or (and (<= 52 main_i) (= 23 (select main_a (* 4 main_n)))) (< 51 main_n)))} assume a[i] != 23;i := i + 4; {34795#(and (or (<= main_n 51) (<= main_i 56)) (or (< 51 main_n) (and (<= 56 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:42:13,269 INFO L273 TraceCheckUtils]: 28: Hoare triple {34795#(and (or (<= main_n 51) (<= main_i 56)) (or (< 51 main_n) (and (<= 56 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {34795#(and (or (<= main_n 51) (<= main_i 56)) (or (< 51 main_n) (and (<= 56 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:42:13,270 INFO L273 TraceCheckUtils]: 29: Hoare triple {34795#(and (or (<= main_n 51) (<= main_i 56)) (or (< 51 main_n) (and (<= 56 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {34796#(and (or (< 51 main_n) (and (<= 60 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 51) (<= main_i 60)))} is VALID [2019-01-31 14:42:13,271 INFO L273 TraceCheckUtils]: 30: Hoare triple {34796#(and (or (< 51 main_n) (and (<= 60 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 51) (<= main_i 60)))} assume i <= n * 4; {34796#(and (or (< 51 main_n) (and (<= 60 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 51) (<= main_i 60)))} is VALID [2019-01-31 14:42:13,272 INFO L273 TraceCheckUtils]: 31: Hoare triple {34796#(and (or (< 51 main_n) (and (<= 60 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 51) (<= main_i 60)))} assume a[i] != 23;i := i + 4; {34797#(and (or (<= main_n 51) (<= main_i 64)) (or (and (<= 64 main_i) (= 23 (select main_a (* 4 main_n)))) (< 51 main_n)))} is VALID [2019-01-31 14:42:13,272 INFO L273 TraceCheckUtils]: 32: Hoare triple {34797#(and (or (<= main_n 51) (<= main_i 64)) (or (and (<= 64 main_i) (= 23 (select main_a (* 4 main_n)))) (< 51 main_n)))} assume i <= n * 4; {34797#(and (or (<= main_n 51) (<= main_i 64)) (or (and (<= 64 main_i) (= 23 (select main_a (* 4 main_n)))) (< 51 main_n)))} is VALID [2019-01-31 14:42:13,273 INFO L273 TraceCheckUtils]: 33: Hoare triple {34797#(and (or (<= main_n 51) (<= main_i 64)) (or (and (<= 64 main_i) (= 23 (select main_a (* 4 main_n)))) (< 51 main_n)))} assume a[i] != 23;i := i + 4; {34798#(and (or (<= main_n 51) (<= main_i 68)) (or (and (<= 68 main_i) (= 23 (select main_a (* 4 main_n)))) (< 51 main_n)))} is VALID [2019-01-31 14:42:13,274 INFO L273 TraceCheckUtils]: 34: Hoare triple {34798#(and (or (<= main_n 51) (<= main_i 68)) (or (and (<= 68 main_i) (= 23 (select main_a (* 4 main_n)))) (< 51 main_n)))} assume i <= n * 4; {34798#(and (or (<= main_n 51) (<= main_i 68)) (or (and (<= 68 main_i) (= 23 (select main_a (* 4 main_n)))) (< 51 main_n)))} is VALID [2019-01-31 14:42:13,275 INFO L273 TraceCheckUtils]: 35: Hoare triple {34798#(and (or (<= main_n 51) (<= main_i 68)) (or (and (<= 68 main_i) (= 23 (select main_a (* 4 main_n)))) (< 51 main_n)))} assume a[i] != 23;i := i + 4; {34799#(and (or (<= main_n 51) (<= main_i 72)) (or (and (<= 72 main_i) (= 23 (select main_a (* 4 main_n)))) (< 51 main_n)))} is VALID [2019-01-31 14:42:13,276 INFO L273 TraceCheckUtils]: 36: Hoare triple {34799#(and (or (<= main_n 51) (<= main_i 72)) (or (and (<= 72 main_i) (= 23 (select main_a (* 4 main_n)))) (< 51 main_n)))} assume i <= n * 4; {34799#(and (or (<= main_n 51) (<= main_i 72)) (or (and (<= 72 main_i) (= 23 (select main_a (* 4 main_n)))) (< 51 main_n)))} is VALID [2019-01-31 14:42:13,277 INFO L273 TraceCheckUtils]: 37: Hoare triple {34799#(and (or (<= main_n 51) (<= main_i 72)) (or (and (<= 72 main_i) (= 23 (select main_a (* 4 main_n)))) (< 51 main_n)))} assume a[i] != 23;i := i + 4; {34800#(and (or (and (<= 76 main_i) (= 23 (select main_a (* 4 main_n)))) (< 51 main_n)) (or (<= main_i 76) (<= main_n 51)))} is VALID [2019-01-31 14:42:13,278 INFO L273 TraceCheckUtils]: 38: Hoare triple {34800#(and (or (and (<= 76 main_i) (= 23 (select main_a (* 4 main_n)))) (< 51 main_n)) (or (<= main_i 76) (<= main_n 51)))} assume i <= n * 4; {34800#(and (or (and (<= 76 main_i) (= 23 (select main_a (* 4 main_n)))) (< 51 main_n)) (or (<= main_i 76) (<= main_n 51)))} is VALID [2019-01-31 14:42:13,279 INFO L273 TraceCheckUtils]: 39: Hoare triple {34800#(and (or (and (<= 76 main_i) (= 23 (select main_a (* 4 main_n)))) (< 51 main_n)) (or (<= main_i 76) (<= main_n 51)))} assume a[i] != 23;i := i + 4; {34801#(and (or (< 51 main_n) (and (<= 80 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 51) (<= main_i 80)))} is VALID [2019-01-31 14:42:13,280 INFO L273 TraceCheckUtils]: 40: Hoare triple {34801#(and (or (< 51 main_n) (and (<= 80 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 51) (<= main_i 80)))} assume i <= n * 4; {34801#(and (or (< 51 main_n) (and (<= 80 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 51) (<= main_i 80)))} is VALID [2019-01-31 14:42:13,281 INFO L273 TraceCheckUtils]: 41: Hoare triple {34801#(and (or (< 51 main_n) (and (<= 80 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 51) (<= main_i 80)))} assume a[i] != 23;i := i + 4; {34802#(and (or (<= main_i 84) (<= main_n 51)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 84 main_i)) (< 51 main_n)))} is VALID [2019-01-31 14:42:13,281 INFO L273 TraceCheckUtils]: 42: Hoare triple {34802#(and (or (<= main_i 84) (<= main_n 51)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 84 main_i)) (< 51 main_n)))} assume i <= n * 4; {34802#(and (or (<= main_i 84) (<= main_n 51)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 84 main_i)) (< 51 main_n)))} is VALID [2019-01-31 14:42:13,282 INFO L273 TraceCheckUtils]: 43: Hoare triple {34802#(and (or (<= main_i 84) (<= main_n 51)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 84 main_i)) (< 51 main_n)))} assume a[i] != 23;i := i + 4; {34803#(and (or (<= main_i 88) (<= main_n 51)) (or (< 51 main_n) (and (<= 88 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:42:13,283 INFO L273 TraceCheckUtils]: 44: Hoare triple {34803#(and (or (<= main_i 88) (<= main_n 51)) (or (< 51 main_n) (and (<= 88 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {34803#(and (or (<= main_i 88) (<= main_n 51)) (or (< 51 main_n) (and (<= 88 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:42:13,284 INFO L273 TraceCheckUtils]: 45: Hoare triple {34803#(and (or (<= main_i 88) (<= main_n 51)) (or (< 51 main_n) (and (<= 88 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {34804#(and (or (<= main_i 92) (<= main_n 51)) (or (< 51 main_n) (and (<= 92 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:42:13,285 INFO L273 TraceCheckUtils]: 46: Hoare triple {34804#(and (or (<= main_i 92) (<= main_n 51)) (or (< 51 main_n) (and (<= 92 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {34804#(and (or (<= main_i 92) (<= main_n 51)) (or (< 51 main_n) (and (<= 92 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:42:13,286 INFO L273 TraceCheckUtils]: 47: Hoare triple {34804#(and (or (<= main_i 92) (<= main_n 51)) (or (< 51 main_n) (and (<= 92 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {34805#(and (or (and (<= 96 main_i) (= 23 (select main_a (* 4 main_n)))) (< 51 main_n)) (or (<= main_i 96) (<= main_n 51)))} is VALID [2019-01-31 14:42:13,287 INFO L273 TraceCheckUtils]: 48: Hoare triple {34805#(and (or (and (<= 96 main_i) (= 23 (select main_a (* 4 main_n)))) (< 51 main_n)) (or (<= main_i 96) (<= main_n 51)))} assume i <= n * 4; {34805#(and (or (and (<= 96 main_i) (= 23 (select main_a (* 4 main_n)))) (< 51 main_n)) (or (<= main_i 96) (<= main_n 51)))} is VALID [2019-01-31 14:42:13,288 INFO L273 TraceCheckUtils]: 49: Hoare triple {34805#(and (or (and (<= 96 main_i) (= 23 (select main_a (* 4 main_n)))) (< 51 main_n)) (or (<= main_i 96) (<= main_n 51)))} assume a[i] != 23;i := i + 4; {34806#(and (or (<= main_i 100) (<= main_n 51)) (or (and (<= 100 main_i) (= 23 (select main_a (* 4 main_n)))) (< 51 main_n)))} is VALID [2019-01-31 14:42:13,288 INFO L273 TraceCheckUtils]: 50: Hoare triple {34806#(and (or (<= main_i 100) (<= main_n 51)) (or (and (<= 100 main_i) (= 23 (select main_a (* 4 main_n)))) (< 51 main_n)))} assume i <= n * 4; {34806#(and (or (<= main_i 100) (<= main_n 51)) (or (and (<= 100 main_i) (= 23 (select main_a (* 4 main_n)))) (< 51 main_n)))} is VALID [2019-01-31 14:42:13,290 INFO L273 TraceCheckUtils]: 51: Hoare triple {34806#(and (or (<= main_i 100) (<= main_n 51)) (or (and (<= 100 main_i) (= 23 (select main_a (* 4 main_n)))) (< 51 main_n)))} assume a[i] != 23;i := i + 4; {34807#(and (or (<= main_i 104) (<= main_n 51)) (or (and (<= 104 main_i) (= 23 (select main_a (* 4 main_n)))) (< 51 main_n)))} is VALID [2019-01-31 14:42:13,290 INFO L273 TraceCheckUtils]: 52: Hoare triple {34807#(and (or (<= main_i 104) (<= main_n 51)) (or (and (<= 104 main_i) (= 23 (select main_a (* 4 main_n)))) (< 51 main_n)))} assume i <= n * 4; {34807#(and (or (<= main_i 104) (<= main_n 51)) (or (and (<= 104 main_i) (= 23 (select main_a (* 4 main_n)))) (< 51 main_n)))} is VALID [2019-01-31 14:42:13,291 INFO L273 TraceCheckUtils]: 53: Hoare triple {34807#(and (or (<= main_i 104) (<= main_n 51)) (or (and (<= 104 main_i) (= 23 (select main_a (* 4 main_n)))) (< 51 main_n)))} assume a[i] != 23;i := i + 4; {34808#(and (or (<= main_n 51) (<= main_i 108)) (or (< 51 main_n) (and (<= 108 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:42:13,292 INFO L273 TraceCheckUtils]: 54: Hoare triple {34808#(and (or (<= main_n 51) (<= main_i 108)) (or (< 51 main_n) (and (<= 108 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {34808#(and (or (<= main_n 51) (<= main_i 108)) (or (< 51 main_n) (and (<= 108 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:42:13,293 INFO L273 TraceCheckUtils]: 55: Hoare triple {34808#(and (or (<= main_n 51) (<= main_i 108)) (or (< 51 main_n) (and (<= 108 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {34809#(and (or (<= main_n 51) (<= main_i 112)) (or (< 51 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 112 main_i))))} is VALID [2019-01-31 14:42:13,294 INFO L273 TraceCheckUtils]: 56: Hoare triple {34809#(and (or (<= main_n 51) (<= main_i 112)) (or (< 51 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 112 main_i))))} assume i <= n * 4; {34809#(and (or (<= main_n 51) (<= main_i 112)) (or (< 51 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 112 main_i))))} is VALID [2019-01-31 14:42:13,295 INFO L273 TraceCheckUtils]: 57: Hoare triple {34809#(and (or (<= main_n 51) (<= main_i 112)) (or (< 51 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 112 main_i))))} assume a[i] != 23;i := i + 4; {34810#(and (or (<= main_n 51) (<= main_i 116)) (or (< 51 main_n) (and (<= 116 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:42:13,296 INFO L273 TraceCheckUtils]: 58: Hoare triple {34810#(and (or (<= main_n 51) (<= main_i 116)) (or (< 51 main_n) (and (<= 116 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {34810#(and (or (<= main_n 51) (<= main_i 116)) (or (< 51 main_n) (and (<= 116 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:42:13,297 INFO L273 TraceCheckUtils]: 59: Hoare triple {34810#(and (or (<= main_n 51) (<= main_i 116)) (or (< 51 main_n) (and (<= 116 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {34811#(and (or (< 51 main_n) (and (<= 120 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 120) (<= main_n 51)))} is VALID [2019-01-31 14:42:13,297 INFO L273 TraceCheckUtils]: 60: Hoare triple {34811#(and (or (< 51 main_n) (and (<= 120 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 120) (<= main_n 51)))} assume i <= n * 4; {34811#(and (or (< 51 main_n) (and (<= 120 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 120) (<= main_n 51)))} is VALID [2019-01-31 14:42:13,298 INFO L273 TraceCheckUtils]: 61: Hoare triple {34811#(and (or (< 51 main_n) (and (<= 120 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 120) (<= main_n 51)))} assume a[i] != 23;i := i + 4; {34812#(and (or (and (<= 124 main_i) (= 23 (select main_a (* 4 main_n)))) (< 51 main_n)) (or (<= main_n 51) (<= main_i 124)))} is VALID [2019-01-31 14:42:13,299 INFO L273 TraceCheckUtils]: 62: Hoare triple {34812#(and (or (and (<= 124 main_i) (= 23 (select main_a (* 4 main_n)))) (< 51 main_n)) (or (<= main_n 51) (<= main_i 124)))} assume i <= n * 4; {34812#(and (or (and (<= 124 main_i) (= 23 (select main_a (* 4 main_n)))) (< 51 main_n)) (or (<= main_n 51) (<= main_i 124)))} is VALID [2019-01-31 14:42:13,300 INFO L273 TraceCheckUtils]: 63: Hoare triple {34812#(and (or (and (<= 124 main_i) (= 23 (select main_a (* 4 main_n)))) (< 51 main_n)) (or (<= main_n 51) (<= main_i 124)))} assume a[i] != 23;i := i + 4; {34813#(and (or (<= main_n 51) (<= main_i 128)) (or (< 51 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 128 main_i))))} is VALID [2019-01-31 14:42:13,301 INFO L273 TraceCheckUtils]: 64: Hoare triple {34813#(and (or (<= main_n 51) (<= main_i 128)) (or (< 51 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 128 main_i))))} assume i <= n * 4; {34813#(and (or (<= main_n 51) (<= main_i 128)) (or (< 51 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 128 main_i))))} is VALID [2019-01-31 14:42:13,302 INFO L273 TraceCheckUtils]: 65: Hoare triple {34813#(and (or (<= main_n 51) (<= main_i 128)) (or (< 51 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 128 main_i))))} assume a[i] != 23;i := i + 4; {34814#(and (or (<= main_i 132) (<= main_n 51)) (or (< 51 main_n) (and (<= 132 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:42:13,303 INFO L273 TraceCheckUtils]: 66: Hoare triple {34814#(and (or (<= main_i 132) (<= main_n 51)) (or (< 51 main_n) (and (<= 132 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {34814#(and (or (<= main_i 132) (<= main_n 51)) (or (< 51 main_n) (and (<= 132 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:42:13,304 INFO L273 TraceCheckUtils]: 67: Hoare triple {34814#(and (or (<= main_i 132) (<= main_n 51)) (or (< 51 main_n) (and (<= 132 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {34815#(and (or (< 51 main_n) (and (<= 136 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 136) (<= main_n 51)))} is VALID [2019-01-31 14:42:13,305 INFO L273 TraceCheckUtils]: 68: Hoare triple {34815#(and (or (< 51 main_n) (and (<= 136 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 136) (<= main_n 51)))} assume i <= n * 4; {34815#(and (or (< 51 main_n) (and (<= 136 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 136) (<= main_n 51)))} is VALID [2019-01-31 14:42:13,306 INFO L273 TraceCheckUtils]: 69: Hoare triple {34815#(and (or (< 51 main_n) (and (<= 136 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 136) (<= main_n 51)))} assume a[i] != 23;i := i + 4; {34816#(and (or (< 51 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 140 main_i))) (or (<= main_n 51) (<= main_i 140)))} is VALID [2019-01-31 14:42:13,306 INFO L273 TraceCheckUtils]: 70: Hoare triple {34816#(and (or (< 51 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 140 main_i))) (or (<= main_n 51) (<= main_i 140)))} assume i <= n * 4; {34816#(and (or (< 51 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 140 main_i))) (or (<= main_n 51) (<= main_i 140)))} is VALID [2019-01-31 14:42:13,307 INFO L273 TraceCheckUtils]: 71: Hoare triple {34816#(and (or (< 51 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 140 main_i))) (or (<= main_n 51) (<= main_i 140)))} assume a[i] != 23;i := i + 4; {34817#(and (or (<= main_n 51) (<= main_i 144)) (or (< 51 main_n) (and (<= 144 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:42:13,308 INFO L273 TraceCheckUtils]: 72: Hoare triple {34817#(and (or (<= main_n 51) (<= main_i 144)) (or (< 51 main_n) (and (<= 144 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {34817#(and (or (<= main_n 51) (<= main_i 144)) (or (< 51 main_n) (and (<= 144 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:42:13,309 INFO L273 TraceCheckUtils]: 73: Hoare triple {34817#(and (or (<= main_n 51) (<= main_i 144)) (or (< 51 main_n) (and (<= 144 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {34818#(and (or (< 51 main_n) (and (<= 148 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 51) (<= main_i 148)))} is VALID [2019-01-31 14:42:13,310 INFO L273 TraceCheckUtils]: 74: Hoare triple {34818#(and (or (< 51 main_n) (and (<= 148 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 51) (<= main_i 148)))} assume i <= n * 4; {34818#(and (or (< 51 main_n) (and (<= 148 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 51) (<= main_i 148)))} is VALID [2019-01-31 14:42:13,311 INFO L273 TraceCheckUtils]: 75: Hoare triple {34818#(and (or (< 51 main_n) (and (<= 148 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 51) (<= main_i 148)))} assume a[i] != 23;i := i + 4; {34819#(and (or (<= main_n 51) (<= main_i 152)) (or (and (<= 152 main_i) (= 23 (select main_a (* 4 main_n)))) (< 51 main_n)))} is VALID [2019-01-31 14:42:13,312 INFO L273 TraceCheckUtils]: 76: Hoare triple {34819#(and (or (<= main_n 51) (<= main_i 152)) (or (and (<= 152 main_i) (= 23 (select main_a (* 4 main_n)))) (< 51 main_n)))} assume i <= n * 4; {34819#(and (or (<= main_n 51) (<= main_i 152)) (or (and (<= 152 main_i) (= 23 (select main_a (* 4 main_n)))) (< 51 main_n)))} is VALID [2019-01-31 14:42:13,313 INFO L273 TraceCheckUtils]: 77: Hoare triple {34819#(and (or (<= main_n 51) (<= main_i 152)) (or (and (<= 152 main_i) (= 23 (select main_a (* 4 main_n)))) (< 51 main_n)))} assume a[i] != 23;i := i + 4; {34820#(and (or (< 51 main_n) (and (<= 156 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 156) (<= main_n 51)))} is VALID [2019-01-31 14:42:13,314 INFO L273 TraceCheckUtils]: 78: Hoare triple {34820#(and (or (< 51 main_n) (and (<= 156 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 156) (<= main_n 51)))} assume i <= n * 4; {34820#(and (or (< 51 main_n) (and (<= 156 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 156) (<= main_n 51)))} is VALID [2019-01-31 14:42:13,315 INFO L273 TraceCheckUtils]: 79: Hoare triple {34820#(and (or (< 51 main_n) (and (<= 156 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 156) (<= main_n 51)))} assume a[i] != 23;i := i + 4; {34821#(and (or (<= main_n 51) (<= main_i 160)) (or (< 51 main_n) (and (<= 160 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:42:13,315 INFO L273 TraceCheckUtils]: 80: Hoare triple {34821#(and (or (<= main_n 51) (<= main_i 160)) (or (< 51 main_n) (and (<= 160 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {34821#(and (or (<= main_n 51) (<= main_i 160)) (or (< 51 main_n) (and (<= 160 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:42:13,316 INFO L273 TraceCheckUtils]: 81: Hoare triple {34821#(and (or (<= main_n 51) (<= main_i 160)) (or (< 51 main_n) (and (<= 160 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {34822#(and (or (and (<= 164 main_i) (= 23 (select main_a (* 4 main_n)))) (< 51 main_n)) (or (<= main_n 51) (<= main_i 164)))} is VALID [2019-01-31 14:42:13,317 INFO L273 TraceCheckUtils]: 82: Hoare triple {34822#(and (or (and (<= 164 main_i) (= 23 (select main_a (* 4 main_n)))) (< 51 main_n)) (or (<= main_n 51) (<= main_i 164)))} assume i <= n * 4; {34822#(and (or (and (<= 164 main_i) (= 23 (select main_a (* 4 main_n)))) (< 51 main_n)) (or (<= main_n 51) (<= main_i 164)))} is VALID [2019-01-31 14:42:13,318 INFO L273 TraceCheckUtils]: 83: Hoare triple {34822#(and (or (and (<= 164 main_i) (= 23 (select main_a (* 4 main_n)))) (< 51 main_n)) (or (<= main_n 51) (<= main_i 164)))} assume a[i] != 23;i := i + 4; {34823#(and (or (<= main_n 51) (<= main_i 168)) (or (< 51 main_n) (and (<= 168 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:42:13,319 INFO L273 TraceCheckUtils]: 84: Hoare triple {34823#(and (or (<= main_n 51) (<= main_i 168)) (or (< 51 main_n) (and (<= 168 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {34823#(and (or (<= main_n 51) (<= main_i 168)) (or (< 51 main_n) (and (<= 168 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:42:13,320 INFO L273 TraceCheckUtils]: 85: Hoare triple {34823#(and (or (<= main_n 51) (<= main_i 168)) (or (< 51 main_n) (and (<= 168 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {34824#(and (or (< 51 main_n) (and (<= 172 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 51) (<= main_i 172)))} is VALID [2019-01-31 14:42:13,321 INFO L273 TraceCheckUtils]: 86: Hoare triple {34824#(and (or (< 51 main_n) (and (<= 172 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 51) (<= main_i 172)))} assume i <= n * 4; {34824#(and (or (< 51 main_n) (and (<= 172 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 51) (<= main_i 172)))} is VALID [2019-01-31 14:42:13,322 INFO L273 TraceCheckUtils]: 87: Hoare triple {34824#(and (or (< 51 main_n) (and (<= 172 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 51) (<= main_i 172)))} assume a[i] != 23;i := i + 4; {34825#(and (or (< 51 main_n) (and (<= 176 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 176) (<= main_n 51)))} is VALID [2019-01-31 14:42:13,323 INFO L273 TraceCheckUtils]: 88: Hoare triple {34825#(and (or (< 51 main_n) (and (<= 176 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 176) (<= main_n 51)))} assume i <= n * 4; {34825#(and (or (< 51 main_n) (and (<= 176 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 176) (<= main_n 51)))} is VALID [2019-01-31 14:42:13,324 INFO L273 TraceCheckUtils]: 89: Hoare triple {34825#(and (or (< 51 main_n) (and (<= 176 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 176) (<= main_n 51)))} assume a[i] != 23;i := i + 4; {34826#(and (or (<= main_n 51) (<= main_i 180)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 180 main_i)) (< 51 main_n)))} is VALID [2019-01-31 14:42:13,324 INFO L273 TraceCheckUtils]: 90: Hoare triple {34826#(and (or (<= main_n 51) (<= main_i 180)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 180 main_i)) (< 51 main_n)))} assume i <= n * 4; {34826#(and (or (<= main_n 51) (<= main_i 180)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 180 main_i)) (< 51 main_n)))} is VALID [2019-01-31 14:42:13,325 INFO L273 TraceCheckUtils]: 91: Hoare triple {34826#(and (or (<= main_n 51) (<= main_i 180)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 180 main_i)) (< 51 main_n)))} assume a[i] != 23;i := i + 4; {34827#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 184 main_i)) (< 51 main_n)) (or (<= main_i 184) (<= main_n 51)))} is VALID [2019-01-31 14:42:13,326 INFO L273 TraceCheckUtils]: 92: Hoare triple {34827#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 184 main_i)) (< 51 main_n)) (or (<= main_i 184) (<= main_n 51)))} assume i <= n * 4; {34827#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 184 main_i)) (< 51 main_n)) (or (<= main_i 184) (<= main_n 51)))} is VALID [2019-01-31 14:42:13,327 INFO L273 TraceCheckUtils]: 93: Hoare triple {34827#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 184 main_i)) (< 51 main_n)) (or (<= main_i 184) (<= main_n 51)))} assume a[i] != 23;i := i + 4; {34828#(and (or (< 51 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 188 main_i))) (or (<= main_i 188) (<= main_n 51)))} is VALID [2019-01-31 14:42:13,328 INFO L273 TraceCheckUtils]: 94: Hoare triple {34828#(and (or (< 51 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 188 main_i))) (or (<= main_i 188) (<= main_n 51)))} assume i <= n * 4; {34828#(and (or (< 51 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 188 main_i))) (or (<= main_i 188) (<= main_n 51)))} is VALID [2019-01-31 14:42:13,329 INFO L273 TraceCheckUtils]: 95: Hoare triple {34828#(and (or (< 51 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 188 main_i))) (or (<= main_i 188) (<= main_n 51)))} assume a[i] != 23;i := i + 4; {34829#(and (or (<= main_i 192) (<= main_n 51)) (or (and (<= 192 main_i) (= 23 (select main_a (* 4 main_n)))) (< 51 main_n)))} is VALID [2019-01-31 14:42:13,330 INFO L273 TraceCheckUtils]: 96: Hoare triple {34829#(and (or (<= main_i 192) (<= main_n 51)) (or (and (<= 192 main_i) (= 23 (select main_a (* 4 main_n)))) (< 51 main_n)))} assume i <= n * 4; {34829#(and (or (<= main_i 192) (<= main_n 51)) (or (and (<= 192 main_i) (= 23 (select main_a (* 4 main_n)))) (< 51 main_n)))} is VALID [2019-01-31 14:42:13,331 INFO L273 TraceCheckUtils]: 97: Hoare triple {34829#(and (or (<= main_i 192) (<= main_n 51)) (or (and (<= 192 main_i) (= 23 (select main_a (* 4 main_n)))) (< 51 main_n)))} assume a[i] != 23;i := i + 4; {34830#(and (or (< 51 main_n) (and (<= 196 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 51) (<= main_i 196)))} is VALID [2019-01-31 14:42:13,331 INFO L273 TraceCheckUtils]: 98: Hoare triple {34830#(and (or (< 51 main_n) (and (<= 196 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 51) (<= main_i 196)))} assume i <= n * 4; {34830#(and (or (< 51 main_n) (and (<= 196 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 51) (<= main_i 196)))} is VALID [2019-01-31 14:42:13,333 INFO L273 TraceCheckUtils]: 99: Hoare triple {34830#(and (or (< 51 main_n) (and (<= 196 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 51) (<= main_i 196)))} assume a[i] != 23;i := i + 4; {34831#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 200 main_i)) (< 51 main_n)) (or (<= main_n 51) (<= main_i 200)))} is VALID [2019-01-31 14:42:13,333 INFO L273 TraceCheckUtils]: 100: Hoare triple {34831#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 200 main_i)) (< 51 main_n)) (or (<= main_n 51) (<= main_i 200)))} assume i <= n * 4; {34831#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 200 main_i)) (< 51 main_n)) (or (<= main_n 51) (<= main_i 200)))} is VALID [2019-01-31 14:42:13,334 INFO L273 TraceCheckUtils]: 101: Hoare triple {34831#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 200 main_i)) (< 51 main_n)) (or (<= main_n 51) (<= main_i 200)))} assume a[i] != 23;i := i + 4; {34832#(and (or (<= main_n 51) (<= main_i 204)) (or (and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (<= (* 4 main_n) main_i)) (< 51 main_n)))} is VALID [2019-01-31 14:42:13,335 INFO L273 TraceCheckUtils]: 102: Hoare triple {34832#(and (or (<= main_n 51) (<= main_i 204)) (or (and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (<= (* 4 main_n) main_i)) (< 51 main_n)))} assume i <= n * 4; {34833#(and (or (< 51 main_n) (and (<= (* 4 main_n) main_i) (<= main_i (* 4 main_n)) (= 23 (select main_a main_i)))) (<= main_i 204))} is VALID [2019-01-31 14:42:13,336 INFO L273 TraceCheckUtils]: 103: Hoare triple {34833#(and (or (< 51 main_n) (and (<= (* 4 main_n) main_i) (<= main_i (* 4 main_n)) (= 23 (select main_a main_i)))) (<= main_i 204))} assume a[i] != 23;i := i + 4; {34834#(and (<= main_i 208) (<= 52 main_n))} is VALID [2019-01-31 14:42:13,337 INFO L273 TraceCheckUtils]: 104: Hoare triple {34834#(and (<= main_i 208) (<= 52 main_n))} assume !(i <= n * 4); {34780#false} is VALID [2019-01-31 14:42:13,391 INFO L134 CoverageAnalysis]: Checked inductivity of 2652 backedges. 0 proven. 2652 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-31 14:42:13,391 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-31 14:42:13,391 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-01-31 14:42:13,391 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-01-31 14:42:13,391 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-01-31 14:42:13,391 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-31 14:42:13,391 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 14:42:13,401 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2019-01-31 14:42:13,401 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder TERMS_WITH_SMALL_CONSTANTS_FIRST (IT: FPandBP) [2019-01-31 14:42:13,430 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-01-31 14:42:13,430 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-01-31 14:42:13,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-31 14:42:13,447 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-31 14:42:13,469 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 14:42:13,470 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-01-31 14:42:13,477 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-31 14:42:13,477 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2019-01-31 14:42:13,479 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-01-31 14:42:13,479 WARN L398 uantifierElimination]: Input elimination task: ∃ [v_main_a_55]. (and (= (store v_main_a_55 (* 4 main_n) 23) main_a) (= main_i 0)) [2019-01-31 14:42:13,480 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2019-01-31 14:42:18,069 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2019-01-31 14:42:18,071 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-01-31 14:42:18,077 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-31 14:42:18,078 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2019-01-31 14:42:18,080 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-01-31 14:42:18,081 WARN L398 uantifierElimination]: Input elimination task: ∃ [main_a]. (let ((.cse0 (* 4 main_n))) (and (not (= 23 (select main_a 204))) (<= 204 .cse0) (<= main_i 208) (= 23 (select main_a .cse0)))) [2019-01-31 14:42:18,081 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (let ((.cse0 (* 4 main_n))) (and (<= 204 .cse0) (<= main_i 208) (not (= 204 .cse0)))) [2019-01-31 14:42:18,147 INFO L273 TraceCheckUtils]: 0: Hoare triple {34779#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {34838#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:42:18,147 INFO L273 TraceCheckUtils]: 1: Hoare triple {34838#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {34842#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2019-01-31 14:42:18,148 INFO L273 TraceCheckUtils]: 2: Hoare triple {34842#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume i <= n * 4; {34842#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2019-01-31 14:42:18,148 INFO L273 TraceCheckUtils]: 3: Hoare triple {34842#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume a[i] != 23;i := i + 4; {34849#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:42:18,149 INFO L273 TraceCheckUtils]: 4: Hoare triple {34849#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {34849#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:42:18,150 INFO L273 TraceCheckUtils]: 5: Hoare triple {34849#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {34856#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2019-01-31 14:42:18,150 INFO L273 TraceCheckUtils]: 6: Hoare triple {34856#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume i <= n * 4; {34856#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2019-01-31 14:42:18,151 INFO L273 TraceCheckUtils]: 7: Hoare triple {34856#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume a[i] != 23;i := i + 4; {34863#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:42:18,152 INFO L273 TraceCheckUtils]: 8: Hoare triple {34863#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {34863#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:42:18,153 INFO L273 TraceCheckUtils]: 9: Hoare triple {34863#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {34870#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:42:18,153 INFO L273 TraceCheckUtils]: 10: Hoare triple {34870#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {34870#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:42:18,154 INFO L273 TraceCheckUtils]: 11: Hoare triple {34870#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {34877#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:42:18,155 INFO L273 TraceCheckUtils]: 12: Hoare triple {34877#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {34877#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:42:18,155 INFO L273 TraceCheckUtils]: 13: Hoare triple {34877#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {34884#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:42:18,156 INFO L273 TraceCheckUtils]: 14: Hoare triple {34884#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {34884#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:42:18,157 INFO L273 TraceCheckUtils]: 15: Hoare triple {34884#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {34891#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:42:18,158 INFO L273 TraceCheckUtils]: 16: Hoare triple {34891#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {34891#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:42:18,158 INFO L273 TraceCheckUtils]: 17: Hoare triple {34891#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {34898#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:42:18,159 INFO L273 TraceCheckUtils]: 18: Hoare triple {34898#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {34898#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:42:18,160 INFO L273 TraceCheckUtils]: 19: Hoare triple {34898#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {34905#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:42:18,160 INFO L273 TraceCheckUtils]: 20: Hoare triple {34905#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {34905#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:42:18,161 INFO L273 TraceCheckUtils]: 21: Hoare triple {34905#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {34912#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:42:18,162 INFO L273 TraceCheckUtils]: 22: Hoare triple {34912#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {34912#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:42:18,163 INFO L273 TraceCheckUtils]: 23: Hoare triple {34912#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {34919#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:42:18,163 INFO L273 TraceCheckUtils]: 24: Hoare triple {34919#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {34919#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:42:18,164 INFO L273 TraceCheckUtils]: 25: Hoare triple {34919#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {34926#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:42:18,165 INFO L273 TraceCheckUtils]: 26: Hoare triple {34926#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {34926#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:42:18,165 INFO L273 TraceCheckUtils]: 27: Hoare triple {34926#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {34933#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:42:18,166 INFO L273 TraceCheckUtils]: 28: Hoare triple {34933#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {34933#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:42:18,167 INFO L273 TraceCheckUtils]: 29: Hoare triple {34933#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {34940#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:42:18,168 INFO L273 TraceCheckUtils]: 30: Hoare triple {34940#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {34940#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:42:18,168 INFO L273 TraceCheckUtils]: 31: Hoare triple {34940#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {34947#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:42:18,169 INFO L273 TraceCheckUtils]: 32: Hoare triple {34947#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {34947#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:42:18,170 INFO L273 TraceCheckUtils]: 33: Hoare triple {34947#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {34954#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:42:18,170 INFO L273 TraceCheckUtils]: 34: Hoare triple {34954#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {34954#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:42:18,171 INFO L273 TraceCheckUtils]: 35: Hoare triple {34954#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {34961#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:42:18,172 INFO L273 TraceCheckUtils]: 36: Hoare triple {34961#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {34961#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:42:18,173 INFO L273 TraceCheckUtils]: 37: Hoare triple {34961#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {34968#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:42:18,173 INFO L273 TraceCheckUtils]: 38: Hoare triple {34968#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {34968#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:42:18,174 INFO L273 TraceCheckUtils]: 39: Hoare triple {34968#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {34975#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} is VALID [2019-01-31 14:42:18,175 INFO L273 TraceCheckUtils]: 40: Hoare triple {34975#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} assume i <= n * 4; {34975#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} is VALID [2019-01-31 14:42:18,175 INFO L273 TraceCheckUtils]: 41: Hoare triple {34975#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} assume a[i] != 23;i := i + 4; {34982#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:42:18,176 INFO L273 TraceCheckUtils]: 42: Hoare triple {34982#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {34982#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:42:18,177 INFO L273 TraceCheckUtils]: 43: Hoare triple {34982#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {34989#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:42:18,178 INFO L273 TraceCheckUtils]: 44: Hoare triple {34989#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {34989#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:42:18,178 INFO L273 TraceCheckUtils]: 45: Hoare triple {34989#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {34996#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:42:18,179 INFO L273 TraceCheckUtils]: 46: Hoare triple {34996#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {34996#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:42:18,180 INFO L273 TraceCheckUtils]: 47: Hoare triple {34996#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {35003#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:42:18,181 INFO L273 TraceCheckUtils]: 48: Hoare triple {35003#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {35003#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:42:18,181 INFO L273 TraceCheckUtils]: 49: Hoare triple {35003#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {35010#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:42:18,182 INFO L273 TraceCheckUtils]: 50: Hoare triple {35010#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {35010#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:42:18,183 INFO L273 TraceCheckUtils]: 51: Hoare triple {35010#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {35017#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:42:18,183 INFO L273 TraceCheckUtils]: 52: Hoare triple {35017#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {35017#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:42:18,184 INFO L273 TraceCheckUtils]: 53: Hoare triple {35017#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {35024#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:42:18,185 INFO L273 TraceCheckUtils]: 54: Hoare triple {35024#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {35024#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:42:18,186 INFO L273 TraceCheckUtils]: 55: Hoare triple {35024#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {35031#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:42:18,186 INFO L273 TraceCheckUtils]: 56: Hoare triple {35031#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {35031#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:42:18,187 INFO L273 TraceCheckUtils]: 57: Hoare triple {35031#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {35038#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:42:18,188 INFO L273 TraceCheckUtils]: 58: Hoare triple {35038#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {35038#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:42:18,188 INFO L273 TraceCheckUtils]: 59: Hoare triple {35038#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {35045#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:42:18,189 INFO L273 TraceCheckUtils]: 60: Hoare triple {35045#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {35045#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:42:18,190 INFO L273 TraceCheckUtils]: 61: Hoare triple {35045#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {35052#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:42:18,191 INFO L273 TraceCheckUtils]: 62: Hoare triple {35052#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {35052#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:42:18,191 INFO L273 TraceCheckUtils]: 63: Hoare triple {35052#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {35059#(and (= main_i 128) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:42:18,192 INFO L273 TraceCheckUtils]: 64: Hoare triple {35059#(and (= main_i 128) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {35059#(and (= main_i 128) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:42:18,193 INFO L273 TraceCheckUtils]: 65: Hoare triple {35059#(and (= main_i 128) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {35066#(and (= main_i 132) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:42:18,194 INFO L273 TraceCheckUtils]: 66: Hoare triple {35066#(and (= main_i 132) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {35066#(and (= main_i 132) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:42:18,194 INFO L273 TraceCheckUtils]: 67: Hoare triple {35066#(and (= main_i 132) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {35073#(and (= main_i 136) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:42:18,195 INFO L273 TraceCheckUtils]: 68: Hoare triple {35073#(and (= main_i 136) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {35073#(and (= main_i 136) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:42:18,196 INFO L273 TraceCheckUtils]: 69: Hoare triple {35073#(and (= main_i 136) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {35080#(and (= 23 (select main_a (* 4 main_n))) (= main_i 140))} is VALID [2019-01-31 14:42:18,197 INFO L273 TraceCheckUtils]: 70: Hoare triple {35080#(and (= 23 (select main_a (* 4 main_n))) (= main_i 140))} assume i <= n * 4; {35080#(and (= 23 (select main_a (* 4 main_n))) (= main_i 140))} is VALID [2019-01-31 14:42:18,197 INFO L273 TraceCheckUtils]: 71: Hoare triple {35080#(and (= 23 (select main_a (* 4 main_n))) (= main_i 140))} assume a[i] != 23;i := i + 4; {35087#(and (= main_i 144) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:42:18,198 INFO L273 TraceCheckUtils]: 72: Hoare triple {35087#(and (= main_i 144) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {35087#(and (= main_i 144) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:42:18,199 INFO L273 TraceCheckUtils]: 73: Hoare triple {35087#(and (= main_i 144) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {35094#(and (= main_i 148) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:42:18,200 INFO L273 TraceCheckUtils]: 74: Hoare triple {35094#(and (= main_i 148) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {35094#(and (= main_i 148) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:42:18,200 INFO L273 TraceCheckUtils]: 75: Hoare triple {35094#(and (= main_i 148) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {35101#(and (= main_i 152) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:42:18,201 INFO L273 TraceCheckUtils]: 76: Hoare triple {35101#(and (= main_i 152) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {35101#(and (= main_i 152) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:42:18,202 INFO L273 TraceCheckUtils]: 77: Hoare triple {35101#(and (= main_i 152) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {35108#(and (= main_i 156) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:42:18,203 INFO L273 TraceCheckUtils]: 78: Hoare triple {35108#(and (= main_i 156) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {35108#(and (= main_i 156) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:42:18,203 INFO L273 TraceCheckUtils]: 79: Hoare triple {35108#(and (= main_i 156) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {35115#(and (= main_i 160) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:42:18,204 INFO L273 TraceCheckUtils]: 80: Hoare triple {35115#(and (= main_i 160) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {35115#(and (= main_i 160) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:42:18,205 INFO L273 TraceCheckUtils]: 81: Hoare triple {35115#(and (= main_i 160) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {35122#(and (= 23 (select main_a (* 4 main_n))) (= main_i 164))} is VALID [2019-01-31 14:42:18,205 INFO L273 TraceCheckUtils]: 82: Hoare triple {35122#(and (= 23 (select main_a (* 4 main_n))) (= main_i 164))} assume i <= n * 4; {35122#(and (= 23 (select main_a (* 4 main_n))) (= main_i 164))} is VALID [2019-01-31 14:42:18,206 INFO L273 TraceCheckUtils]: 83: Hoare triple {35122#(and (= 23 (select main_a (* 4 main_n))) (= main_i 164))} assume a[i] != 23;i := i + 4; {35129#(and (= main_i 168) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:42:18,207 INFO L273 TraceCheckUtils]: 84: Hoare triple {35129#(and (= main_i 168) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {35129#(and (= main_i 168) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:42:18,208 INFO L273 TraceCheckUtils]: 85: Hoare triple {35129#(and (= main_i 168) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {35136#(and (= main_i 172) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:42:18,208 INFO L273 TraceCheckUtils]: 86: Hoare triple {35136#(and (= main_i 172) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {35136#(and (= main_i 172) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:42:18,209 INFO L273 TraceCheckUtils]: 87: Hoare triple {35136#(and (= main_i 172) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {35143#(and (= main_i 176) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:42:18,210 INFO L273 TraceCheckUtils]: 88: Hoare triple {35143#(and (= main_i 176) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {35143#(and (= main_i 176) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:42:18,210 INFO L273 TraceCheckUtils]: 89: Hoare triple {35143#(and (= main_i 176) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {35150#(and (= main_i 180) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:42:18,211 INFO L273 TraceCheckUtils]: 90: Hoare triple {35150#(and (= main_i 180) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {35150#(and (= main_i 180) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:42:18,212 INFO L273 TraceCheckUtils]: 91: Hoare triple {35150#(and (= main_i 180) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {35157#(and (= main_i 184) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:42:18,213 INFO L273 TraceCheckUtils]: 92: Hoare triple {35157#(and (= main_i 184) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {35157#(and (= main_i 184) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:42:18,213 INFO L273 TraceCheckUtils]: 93: Hoare triple {35157#(and (= main_i 184) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {35164#(and (= main_i 188) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:42:18,214 INFO L273 TraceCheckUtils]: 94: Hoare triple {35164#(and (= main_i 188) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {35164#(and (= main_i 188) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:42:18,215 INFO L273 TraceCheckUtils]: 95: Hoare triple {35164#(and (= main_i 188) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {35171#(and (= main_i 192) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:42:18,215 INFO L273 TraceCheckUtils]: 96: Hoare triple {35171#(and (= main_i 192) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {35171#(and (= main_i 192) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:42:18,216 INFO L273 TraceCheckUtils]: 97: Hoare triple {35171#(and (= main_i 192) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {35178#(and (= main_i 196) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:42:18,217 INFO L273 TraceCheckUtils]: 98: Hoare triple {35178#(and (= main_i 196) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {35178#(and (= main_i 196) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:42:18,218 INFO L273 TraceCheckUtils]: 99: Hoare triple {35178#(and (= main_i 196) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {35185#(and (= main_i 200) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:42:18,218 INFO L273 TraceCheckUtils]: 100: Hoare triple {35185#(and (= main_i 200) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {35185#(and (= main_i 200) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:42:18,219 INFO L273 TraceCheckUtils]: 101: Hoare triple {35185#(and (= main_i 200) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {35192#(and (= main_i 204) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:42:18,220 INFO L273 TraceCheckUtils]: 102: Hoare triple {35192#(and (= main_i 204) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {35196#(and (<= main_i (* 4 main_n)) (= main_i 204) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:42:18,221 INFO L273 TraceCheckUtils]: 103: Hoare triple {35196#(and (<= main_i (* 4 main_n)) (= main_i 204) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {34834#(and (<= main_i 208) (<= 52 main_n))} is VALID [2019-01-31 14:42:18,221 INFO L273 TraceCheckUtils]: 104: Hoare triple {34834#(and (<= main_i 208) (<= 52 main_n))} assume !(i <= n * 4); {34780#false} is VALID [2019-01-31 14:42:18,250 INFO L134 CoverageAnalysis]: Checked inductivity of 2652 backedges. 0 proven. 2652 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-31 14:42:18,250 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2019-01-31 14:42:26,002 INFO L273 TraceCheckUtils]: 104: Hoare triple {35203#(<= main_i (* 4 main_n))} assume !(i <= n * 4); {34780#false} is VALID [2019-01-31 14:42:26,004 INFO L273 TraceCheckUtils]: 103: Hoare triple {35207#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} assume a[i] != 23;i := i + 4; {35203#(<= main_i (* 4 main_n))} is VALID [2019-01-31 14:42:26,004 INFO L273 TraceCheckUtils]: 102: Hoare triple {35211#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} assume i <= n * 4; {35207#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} is VALID [2019-01-31 14:42:26,005 INFO L273 TraceCheckUtils]: 101: Hoare triple {35215#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume a[i] != 23;i := i + 4; {35211#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} is VALID [2019-01-31 14:42:26,006 INFO L273 TraceCheckUtils]: 100: Hoare triple {35215#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume i <= n * 4; {35215#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2019-01-31 14:42:26,007 INFO L273 TraceCheckUtils]: 99: Hoare triple {35222#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume a[i] != 23;i := i + 4; {35215#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2019-01-31 14:42:26,008 INFO L273 TraceCheckUtils]: 98: Hoare triple {35222#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume i <= n * 4; {35222#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2019-01-31 14:42:26,009 INFO L273 TraceCheckUtils]: 97: Hoare triple {35229#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume a[i] != 23;i := i + 4; {35222#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2019-01-31 14:42:26,009 INFO L273 TraceCheckUtils]: 96: Hoare triple {35229#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume i <= n * 4; {35229#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2019-01-31 14:42:26,011 INFO L273 TraceCheckUtils]: 95: Hoare triple {35236#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume a[i] != 23;i := i + 4; {35229#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2019-01-31 14:42:26,011 INFO L273 TraceCheckUtils]: 94: Hoare triple {35236#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume i <= n * 4; {35236#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2019-01-31 14:42:26,012 INFO L273 TraceCheckUtils]: 93: Hoare triple {35243#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {35236#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2019-01-31 14:42:26,013 INFO L273 TraceCheckUtils]: 92: Hoare triple {35243#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume i <= n * 4; {35243#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2019-01-31 14:42:26,014 INFO L273 TraceCheckUtils]: 91: Hoare triple {35250#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume a[i] != 23;i := i + 4; {35243#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2019-01-31 14:42:26,015 INFO L273 TraceCheckUtils]: 90: Hoare triple {35250#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume i <= n * 4; {35250#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2019-01-31 14:42:26,016 INFO L273 TraceCheckUtils]: 89: Hoare triple {35257#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {35250#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2019-01-31 14:42:26,016 INFO L273 TraceCheckUtils]: 88: Hoare triple {35257#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume i <= n * 4; {35257#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2019-01-31 14:42:26,017 INFO L273 TraceCheckUtils]: 87: Hoare triple {35264#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {35257#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2019-01-31 14:42:26,018 INFO L273 TraceCheckUtils]: 86: Hoare triple {35264#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume i <= n * 4; {35264#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2019-01-31 14:42:26,019 INFO L273 TraceCheckUtils]: 85: Hoare triple {35271#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {35264#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2019-01-31 14:42:26,019 INFO L273 TraceCheckUtils]: 84: Hoare triple {35271#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume i <= n * 4; {35271#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2019-01-31 14:42:26,021 INFO L273 TraceCheckUtils]: 83: Hoare triple {35278#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} assume a[i] != 23;i := i + 4; {35271#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2019-01-31 14:42:26,021 INFO L273 TraceCheckUtils]: 82: Hoare triple {35278#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} assume i <= n * 4; {35278#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} is VALID [2019-01-31 14:42:26,022 INFO L273 TraceCheckUtils]: 81: Hoare triple {35285#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {35278#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} is VALID [2019-01-31 14:42:26,023 INFO L273 TraceCheckUtils]: 80: Hoare triple {35285#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} assume i <= n * 4; {35285#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} is VALID [2019-01-31 14:42:26,024 INFO L273 TraceCheckUtils]: 79: Hoare triple {35292#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {35285#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} is VALID [2019-01-31 14:42:26,024 INFO L273 TraceCheckUtils]: 78: Hoare triple {35292#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} assume i <= n * 4; {35292#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} is VALID [2019-01-31 14:42:26,025 INFO L273 TraceCheckUtils]: 77: Hoare triple {35299#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} assume a[i] != 23;i := i + 4; {35292#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} is VALID [2019-01-31 14:42:26,026 INFO L273 TraceCheckUtils]: 76: Hoare triple {35299#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} assume i <= n * 4; {35299#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} is VALID [2019-01-31 14:42:26,027 INFO L273 TraceCheckUtils]: 75: Hoare triple {35306#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {35299#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} is VALID [2019-01-31 14:42:26,027 INFO L273 TraceCheckUtils]: 74: Hoare triple {35306#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} assume i <= n * 4; {35306#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} is VALID [2019-01-31 14:42:26,028 INFO L273 TraceCheckUtils]: 73: Hoare triple {35313#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} assume a[i] != 23;i := i + 4; {35306#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} is VALID [2019-01-31 14:42:26,029 INFO L273 TraceCheckUtils]: 72: Hoare triple {35313#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} assume i <= n * 4; {35313#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} is VALID [2019-01-31 14:42:26,030 INFO L273 TraceCheckUtils]: 71: Hoare triple {35320#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} assume a[i] != 23;i := i + 4; {35313#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} is VALID [2019-01-31 14:42:26,030 INFO L273 TraceCheckUtils]: 70: Hoare triple {35320#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} assume i <= n * 4; {35320#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} is VALID [2019-01-31 14:42:26,032 INFO L273 TraceCheckUtils]: 69: Hoare triple {35327#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} assume a[i] != 23;i := i + 4; {35320#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} is VALID [2019-01-31 14:42:26,032 INFO L273 TraceCheckUtils]: 68: Hoare triple {35327#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} assume i <= n * 4; {35327#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} is VALID [2019-01-31 14:42:26,033 INFO L273 TraceCheckUtils]: 67: Hoare triple {35334#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} assume a[i] != 23;i := i + 4; {35327#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} is VALID [2019-01-31 14:42:26,034 INFO L273 TraceCheckUtils]: 66: Hoare triple {35334#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} assume i <= n * 4; {35334#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} is VALID [2019-01-31 14:42:26,035 INFO L273 TraceCheckUtils]: 65: Hoare triple {35341#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} assume a[i] != 23;i := i + 4; {35334#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} is VALID [2019-01-31 14:42:26,035 INFO L273 TraceCheckUtils]: 64: Hoare triple {35341#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} assume i <= n * 4; {35341#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} is VALID [2019-01-31 14:42:26,036 INFO L273 TraceCheckUtils]: 63: Hoare triple {35348#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} assume a[i] != 23;i := i + 4; {35341#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} is VALID [2019-01-31 14:42:26,037 INFO L273 TraceCheckUtils]: 62: Hoare triple {35348#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} assume i <= n * 4; {35348#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} is VALID [2019-01-31 14:42:26,038 INFO L273 TraceCheckUtils]: 61: Hoare triple {35355#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {35348#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} is VALID [2019-01-31 14:42:26,038 INFO L273 TraceCheckUtils]: 60: Hoare triple {35355#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} assume i <= n * 4; {35355#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} is VALID [2019-01-31 14:42:26,039 INFO L273 TraceCheckUtils]: 59: Hoare triple {35362#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {35355#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} is VALID [2019-01-31 14:42:26,040 INFO L273 TraceCheckUtils]: 58: Hoare triple {35362#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} assume i <= n * 4; {35362#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} is VALID [2019-01-31 14:42:26,041 INFO L273 TraceCheckUtils]: 57: Hoare triple {35369#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {35362#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} is VALID [2019-01-31 14:42:26,041 INFO L273 TraceCheckUtils]: 56: Hoare triple {35369#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} assume i <= n * 4; {35369#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} is VALID [2019-01-31 14:42:26,042 INFO L273 TraceCheckUtils]: 55: Hoare triple {35376#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} assume a[i] != 23;i := i + 4; {35369#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} is VALID [2019-01-31 14:42:26,043 INFO L273 TraceCheckUtils]: 54: Hoare triple {35376#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} assume i <= n * 4; {35376#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} is VALID [2019-01-31 14:42:26,044 INFO L273 TraceCheckUtils]: 53: Hoare triple {35383#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {35376#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} is VALID [2019-01-31 14:42:26,045 INFO L273 TraceCheckUtils]: 52: Hoare triple {35383#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} assume i <= n * 4; {35383#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} is VALID [2019-01-31 14:42:26,046 INFO L273 TraceCheckUtils]: 51: Hoare triple {35390#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} assume a[i] != 23;i := i + 4; {35383#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} is VALID [2019-01-31 14:42:26,046 INFO L273 TraceCheckUtils]: 50: Hoare triple {35390#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} assume i <= n * 4; {35390#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} is VALID [2019-01-31 14:42:26,047 INFO L273 TraceCheckUtils]: 49: Hoare triple {35397#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} assume a[i] != 23;i := i + 4; {35390#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} is VALID [2019-01-31 14:42:26,048 INFO L273 TraceCheckUtils]: 48: Hoare triple {35397#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} assume i <= n * 4; {35397#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} is VALID [2019-01-31 14:42:26,049 INFO L273 TraceCheckUtils]: 47: Hoare triple {35404#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} assume a[i] != 23;i := i + 4; {35397#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} is VALID [2019-01-31 14:42:26,049 INFO L273 TraceCheckUtils]: 46: Hoare triple {35404#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} assume i <= n * 4; {35404#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} is VALID [2019-01-31 14:42:26,050 INFO L273 TraceCheckUtils]: 45: Hoare triple {35411#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {35404#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} is VALID [2019-01-31 14:42:26,051 INFO L273 TraceCheckUtils]: 44: Hoare triple {35411#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} assume i <= n * 4; {35411#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} is VALID [2019-01-31 14:42:26,052 INFO L273 TraceCheckUtils]: 43: Hoare triple {35418#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {35411#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} is VALID [2019-01-31 14:42:26,052 INFO L273 TraceCheckUtils]: 42: Hoare triple {35418#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} assume i <= n * 4; {35418#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} is VALID [2019-01-31 14:42:26,053 INFO L273 TraceCheckUtils]: 41: Hoare triple {35425#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} assume a[i] != 23;i := i + 4; {35418#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} is VALID [2019-01-31 14:42:26,054 INFO L273 TraceCheckUtils]: 40: Hoare triple {35425#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} assume i <= n * 4; {35425#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} is VALID [2019-01-31 14:42:26,055 INFO L273 TraceCheckUtils]: 39: Hoare triple {35432#(or (< (* 4 main_n) (+ main_i 128)) (= (select main_a (+ main_i 128)) 23) (< (+ main_i 131) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {35425#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} is VALID [2019-01-31 14:42:26,056 INFO L273 TraceCheckUtils]: 38: Hoare triple {35432#(or (< (* 4 main_n) (+ main_i 128)) (= (select main_a (+ main_i 128)) 23) (< (+ main_i 131) (* 4 main_n)))} assume i <= n * 4; {35432#(or (< (* 4 main_n) (+ main_i 128)) (= (select main_a (+ main_i 128)) 23) (< (+ main_i 131) (* 4 main_n)))} is VALID [2019-01-31 14:42:26,057 INFO L273 TraceCheckUtils]: 37: Hoare triple {35439#(or (< (* 4 main_n) (+ main_i 132)) (< (+ main_i 135) (* 4 main_n)) (= (select main_a (+ main_i 132)) 23))} assume a[i] != 23;i := i + 4; {35432#(or (< (* 4 main_n) (+ main_i 128)) (= (select main_a (+ main_i 128)) 23) (< (+ main_i 131) (* 4 main_n)))} is VALID [2019-01-31 14:42:26,057 INFO L273 TraceCheckUtils]: 36: Hoare triple {35439#(or (< (* 4 main_n) (+ main_i 132)) (< (+ main_i 135) (* 4 main_n)) (= (select main_a (+ main_i 132)) 23))} assume i <= n * 4; {35439#(or (< (* 4 main_n) (+ main_i 132)) (< (+ main_i 135) (* 4 main_n)) (= (select main_a (+ main_i 132)) 23))} is VALID [2019-01-31 14:42:26,058 INFO L273 TraceCheckUtils]: 35: Hoare triple {35446#(or (< (+ main_i 139) (* 4 main_n)) (= (select main_a (+ main_i 136)) 23) (< (* 4 main_n) (+ main_i 136)))} assume a[i] != 23;i := i + 4; {35439#(or (< (* 4 main_n) (+ main_i 132)) (< (+ main_i 135) (* 4 main_n)) (= (select main_a (+ main_i 132)) 23))} is VALID [2019-01-31 14:42:26,059 INFO L273 TraceCheckUtils]: 34: Hoare triple {35446#(or (< (+ main_i 139) (* 4 main_n)) (= (select main_a (+ main_i 136)) 23) (< (* 4 main_n) (+ main_i 136)))} assume i <= n * 4; {35446#(or (< (+ main_i 139) (* 4 main_n)) (= (select main_a (+ main_i 136)) 23) (< (* 4 main_n) (+ main_i 136)))} is VALID [2019-01-31 14:42:26,060 INFO L273 TraceCheckUtils]: 33: Hoare triple {35453#(or (< (* 4 main_n) (+ main_i 140)) (< (+ main_i 143) (* 4 main_n)) (= (select main_a (+ main_i 140)) 23))} assume a[i] != 23;i := i + 4; {35446#(or (< (+ main_i 139) (* 4 main_n)) (= (select main_a (+ main_i 136)) 23) (< (* 4 main_n) (+ main_i 136)))} is VALID [2019-01-31 14:42:26,060 INFO L273 TraceCheckUtils]: 32: Hoare triple {35453#(or (< (* 4 main_n) (+ main_i 140)) (< (+ main_i 143) (* 4 main_n)) (= (select main_a (+ main_i 140)) 23))} assume i <= n * 4; {35453#(or (< (* 4 main_n) (+ main_i 140)) (< (+ main_i 143) (* 4 main_n)) (= (select main_a (+ main_i 140)) 23))} is VALID [2019-01-31 14:42:26,061 INFO L273 TraceCheckUtils]: 31: Hoare triple {35460#(or (= (select main_a (+ main_i 144)) 23) (< (+ main_i 147) (* 4 main_n)) (< (* 4 main_n) (+ main_i 144)))} assume a[i] != 23;i := i + 4; {35453#(or (< (* 4 main_n) (+ main_i 140)) (< (+ main_i 143) (* 4 main_n)) (= (select main_a (+ main_i 140)) 23))} is VALID [2019-01-31 14:42:26,062 INFO L273 TraceCheckUtils]: 30: Hoare triple {35460#(or (= (select main_a (+ main_i 144)) 23) (< (+ main_i 147) (* 4 main_n)) (< (* 4 main_n) (+ main_i 144)))} assume i <= n * 4; {35460#(or (= (select main_a (+ main_i 144)) 23) (< (+ main_i 147) (* 4 main_n)) (< (* 4 main_n) (+ main_i 144)))} is VALID [2019-01-31 14:42:26,063 INFO L273 TraceCheckUtils]: 29: Hoare triple {35467#(or (< (+ main_i 151) (* 4 main_n)) (< (* 4 main_n) (+ main_i 148)) (= (select main_a (+ main_i 148)) 23))} assume a[i] != 23;i := i + 4; {35460#(or (= (select main_a (+ main_i 144)) 23) (< (+ main_i 147) (* 4 main_n)) (< (* 4 main_n) (+ main_i 144)))} is VALID [2019-01-31 14:42:26,063 INFO L273 TraceCheckUtils]: 28: Hoare triple {35467#(or (< (+ main_i 151) (* 4 main_n)) (< (* 4 main_n) (+ main_i 148)) (= (select main_a (+ main_i 148)) 23))} assume i <= n * 4; {35467#(or (< (+ main_i 151) (* 4 main_n)) (< (* 4 main_n) (+ main_i 148)) (= (select main_a (+ main_i 148)) 23))} is VALID [2019-01-31 14:42:26,065 INFO L273 TraceCheckUtils]: 27: Hoare triple {35474#(or (= 23 (select main_a (+ main_i 152))) (< (+ main_i 155) (* 4 main_n)) (< (* 4 main_n) (+ main_i 152)))} assume a[i] != 23;i := i + 4; {35467#(or (< (+ main_i 151) (* 4 main_n)) (< (* 4 main_n) (+ main_i 148)) (= (select main_a (+ main_i 148)) 23))} is VALID [2019-01-31 14:42:26,065 INFO L273 TraceCheckUtils]: 26: Hoare triple {35474#(or (= 23 (select main_a (+ main_i 152))) (< (+ main_i 155) (* 4 main_n)) (< (* 4 main_n) (+ main_i 152)))} assume i <= n * 4; {35474#(or (= 23 (select main_a (+ main_i 152))) (< (+ main_i 155) (* 4 main_n)) (< (* 4 main_n) (+ main_i 152)))} is VALID [2019-01-31 14:42:26,066 INFO L273 TraceCheckUtils]: 25: Hoare triple {35481#(or (< (+ main_i 159) (* 4 main_n)) (= (select main_a (+ main_i 156)) 23) (< (* 4 main_n) (+ main_i 156)))} assume a[i] != 23;i := i + 4; {35474#(or (= 23 (select main_a (+ main_i 152))) (< (+ main_i 155) (* 4 main_n)) (< (* 4 main_n) (+ main_i 152)))} is VALID [2019-01-31 14:42:26,067 INFO L273 TraceCheckUtils]: 24: Hoare triple {35481#(or (< (+ main_i 159) (* 4 main_n)) (= (select main_a (+ main_i 156)) 23) (< (* 4 main_n) (+ main_i 156)))} assume i <= n * 4; {35481#(or (< (+ main_i 159) (* 4 main_n)) (= (select main_a (+ main_i 156)) 23) (< (* 4 main_n) (+ main_i 156)))} is VALID [2019-01-31 14:42:26,068 INFO L273 TraceCheckUtils]: 23: Hoare triple {35488#(or (< (+ main_i 163) (* 4 main_n)) (= (select main_a (+ main_i 160)) 23) (< (* 4 main_n) (+ main_i 160)))} assume a[i] != 23;i := i + 4; {35481#(or (< (+ main_i 159) (* 4 main_n)) (= (select main_a (+ main_i 156)) 23) (< (* 4 main_n) (+ main_i 156)))} is VALID [2019-01-31 14:42:26,068 INFO L273 TraceCheckUtils]: 22: Hoare triple {35488#(or (< (+ main_i 163) (* 4 main_n)) (= (select main_a (+ main_i 160)) 23) (< (* 4 main_n) (+ main_i 160)))} assume i <= n * 4; {35488#(or (< (+ main_i 163) (* 4 main_n)) (= (select main_a (+ main_i 160)) 23) (< (* 4 main_n) (+ main_i 160)))} is VALID [2019-01-31 14:42:26,069 INFO L273 TraceCheckUtils]: 21: Hoare triple {35495#(or (< (* 4 main_n) (+ main_i 164)) (< (+ main_i 167) (* 4 main_n)) (= (select main_a (+ main_i 164)) 23))} assume a[i] != 23;i := i + 4; {35488#(or (< (+ main_i 163) (* 4 main_n)) (= (select main_a (+ main_i 160)) 23) (< (* 4 main_n) (+ main_i 160)))} is VALID [2019-01-31 14:42:26,070 INFO L273 TraceCheckUtils]: 20: Hoare triple {35495#(or (< (* 4 main_n) (+ main_i 164)) (< (+ main_i 167) (* 4 main_n)) (= (select main_a (+ main_i 164)) 23))} assume i <= n * 4; {35495#(or (< (* 4 main_n) (+ main_i 164)) (< (+ main_i 167) (* 4 main_n)) (= (select main_a (+ main_i 164)) 23))} is VALID [2019-01-31 14:42:26,071 INFO L273 TraceCheckUtils]: 19: Hoare triple {35502#(or (= (select main_a (+ main_i 168)) 23) (< (* 4 main_n) (+ main_i 168)) (< (+ main_i 171) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {35495#(or (< (* 4 main_n) (+ main_i 164)) (< (+ main_i 167) (* 4 main_n)) (= (select main_a (+ main_i 164)) 23))} is VALID [2019-01-31 14:42:26,071 INFO L273 TraceCheckUtils]: 18: Hoare triple {35502#(or (= (select main_a (+ main_i 168)) 23) (< (* 4 main_n) (+ main_i 168)) (< (+ main_i 171) (* 4 main_n)))} assume i <= n * 4; {35502#(or (= (select main_a (+ main_i 168)) 23) (< (* 4 main_n) (+ main_i 168)) (< (+ main_i 171) (* 4 main_n)))} is VALID [2019-01-31 14:42:26,072 INFO L273 TraceCheckUtils]: 17: Hoare triple {35509#(or (< (* 4 main_n) (+ main_i 172)) (= (select main_a (+ main_i 172)) 23) (< (+ main_i 175) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {35502#(or (= (select main_a (+ main_i 168)) 23) (< (* 4 main_n) (+ main_i 168)) (< (+ main_i 171) (* 4 main_n)))} is VALID [2019-01-31 14:42:26,073 INFO L273 TraceCheckUtils]: 16: Hoare triple {35509#(or (< (* 4 main_n) (+ main_i 172)) (= (select main_a (+ main_i 172)) 23) (< (+ main_i 175) (* 4 main_n)))} assume i <= n * 4; {35509#(or (< (* 4 main_n) (+ main_i 172)) (= (select main_a (+ main_i 172)) 23) (< (+ main_i 175) (* 4 main_n)))} is VALID [2019-01-31 14:42:26,074 INFO L273 TraceCheckUtils]: 15: Hoare triple {35516#(or (= (select main_a (+ main_i 176)) 23) (< (+ main_i 179) (* 4 main_n)) (< (* 4 main_n) (+ main_i 176)))} assume a[i] != 23;i := i + 4; {35509#(or (< (* 4 main_n) (+ main_i 172)) (= (select main_a (+ main_i 172)) 23) (< (+ main_i 175) (* 4 main_n)))} is VALID [2019-01-31 14:42:26,074 INFO L273 TraceCheckUtils]: 14: Hoare triple {35516#(or (= (select main_a (+ main_i 176)) 23) (< (+ main_i 179) (* 4 main_n)) (< (* 4 main_n) (+ main_i 176)))} assume i <= n * 4; {35516#(or (= (select main_a (+ main_i 176)) 23) (< (+ main_i 179) (* 4 main_n)) (< (* 4 main_n) (+ main_i 176)))} is VALID [2019-01-31 14:42:26,076 INFO L273 TraceCheckUtils]: 13: Hoare triple {35523#(or (< (+ main_i 183) (* 4 main_n)) (= (select main_a (+ main_i 180)) 23) (< (* 4 main_n) (+ main_i 180)))} assume a[i] != 23;i := i + 4; {35516#(or (= (select main_a (+ main_i 176)) 23) (< (+ main_i 179) (* 4 main_n)) (< (* 4 main_n) (+ main_i 176)))} is VALID [2019-01-31 14:42:26,076 INFO L273 TraceCheckUtils]: 12: Hoare triple {35523#(or (< (+ main_i 183) (* 4 main_n)) (= (select main_a (+ main_i 180)) 23) (< (* 4 main_n) (+ main_i 180)))} assume i <= n * 4; {35523#(or (< (+ main_i 183) (* 4 main_n)) (= (select main_a (+ main_i 180)) 23) (< (* 4 main_n) (+ main_i 180)))} is VALID [2019-01-31 14:42:26,077 INFO L273 TraceCheckUtils]: 11: Hoare triple {35530#(or (= (select main_a (+ main_i 184)) 23) (< (+ main_i 187) (* 4 main_n)) (< (* 4 main_n) (+ main_i 184)))} assume a[i] != 23;i := i + 4; {35523#(or (< (+ main_i 183) (* 4 main_n)) (= (select main_a (+ main_i 180)) 23) (< (* 4 main_n) (+ main_i 180)))} is VALID [2019-01-31 14:42:26,078 INFO L273 TraceCheckUtils]: 10: Hoare triple {35530#(or (= (select main_a (+ main_i 184)) 23) (< (+ main_i 187) (* 4 main_n)) (< (* 4 main_n) (+ main_i 184)))} assume i <= n * 4; {35530#(or (= (select main_a (+ main_i 184)) 23) (< (+ main_i 187) (* 4 main_n)) (< (* 4 main_n) (+ main_i 184)))} is VALID [2019-01-31 14:42:26,079 INFO L273 TraceCheckUtils]: 9: Hoare triple {35537#(or (< (+ main_i 191) (* 4 main_n)) (< (* 4 main_n) (+ main_i 188)) (= 23 (select main_a (+ main_i 188))))} assume a[i] != 23;i := i + 4; {35530#(or (= (select main_a (+ main_i 184)) 23) (< (+ main_i 187) (* 4 main_n)) (< (* 4 main_n) (+ main_i 184)))} is VALID [2019-01-31 14:42:26,079 INFO L273 TraceCheckUtils]: 8: Hoare triple {35537#(or (< (+ main_i 191) (* 4 main_n)) (< (* 4 main_n) (+ main_i 188)) (= 23 (select main_a (+ main_i 188))))} assume i <= n * 4; {35537#(or (< (+ main_i 191) (* 4 main_n)) (< (* 4 main_n) (+ main_i 188)) (= 23 (select main_a (+ main_i 188))))} is VALID [2019-01-31 14:42:26,080 INFO L273 TraceCheckUtils]: 7: Hoare triple {35544#(or (= 23 (select main_a (+ main_i 192))) (< (+ main_i 195) (* 4 main_n)) (< (* 4 main_n) (+ main_i 192)))} assume a[i] != 23;i := i + 4; {35537#(or (< (+ main_i 191) (* 4 main_n)) (< (* 4 main_n) (+ main_i 188)) (= 23 (select main_a (+ main_i 188))))} is VALID [2019-01-31 14:42:26,081 INFO L273 TraceCheckUtils]: 6: Hoare triple {35544#(or (= 23 (select main_a (+ main_i 192))) (< (+ main_i 195) (* 4 main_n)) (< (* 4 main_n) (+ main_i 192)))} assume i <= n * 4; {35544#(or (= 23 (select main_a (+ main_i 192))) (< (+ main_i 195) (* 4 main_n)) (< (* 4 main_n) (+ main_i 192)))} is VALID [2019-01-31 14:42:26,082 INFO L273 TraceCheckUtils]: 5: Hoare triple {35551#(or (= 23 (select main_a (+ main_i 196))) (< (+ main_i 199) (* 4 main_n)) (< (* 4 main_n) (+ main_i 196)))} assume a[i] != 23;i := i + 4; {35544#(or (= 23 (select main_a (+ main_i 192))) (< (+ main_i 195) (* 4 main_n)) (< (* 4 main_n) (+ main_i 192)))} is VALID [2019-01-31 14:42:26,082 INFO L273 TraceCheckUtils]: 4: Hoare triple {35551#(or (= 23 (select main_a (+ main_i 196))) (< (+ main_i 199) (* 4 main_n)) (< (* 4 main_n) (+ main_i 196)))} assume i <= n * 4; {35551#(or (= 23 (select main_a (+ main_i 196))) (< (+ main_i 199) (* 4 main_n)) (< (* 4 main_n) (+ main_i 196)))} is VALID [2019-01-31 14:42:26,083 INFO L273 TraceCheckUtils]: 3: Hoare triple {35558#(or (< (* 4 main_n) (+ main_i 200)) (< (+ main_i 203) (* 4 main_n)) (= 23 (select main_a (+ main_i 200))))} assume a[i] != 23;i := i + 4; {35551#(or (= 23 (select main_a (+ main_i 196))) (< (+ main_i 199) (* 4 main_n)) (< (* 4 main_n) (+ main_i 196)))} is VALID [2019-01-31 14:42:26,084 INFO L273 TraceCheckUtils]: 2: Hoare triple {35558#(or (< (* 4 main_n) (+ main_i 200)) (< (+ main_i 203) (* 4 main_n)) (= 23 (select main_a (+ main_i 200))))} assume i <= n * 4; {35558#(or (< (* 4 main_n) (+ main_i 200)) (< (+ main_i 203) (* 4 main_n)) (= 23 (select main_a (+ main_i 200))))} is VALID [2019-01-31 14:42:26,085 INFO L273 TraceCheckUtils]: 1: Hoare triple {35565#(or (< (+ main_i 207) (* 4 main_n)) (< (* 4 main_n) (+ main_i 204)) (= (select main_a (+ main_i 204)) 23))} assume a[i] != 23;i := i + 4; {35558#(or (< (* 4 main_n) (+ main_i 200)) (< (+ main_i 203) (* 4 main_n)) (= 23 (select main_a (+ main_i 200))))} is VALID [2019-01-31 14:42:26,086 INFO L273 TraceCheckUtils]: 0: Hoare triple {34779#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {35565#(or (< (+ main_i 207) (* 4 main_n)) (< (* 4 main_n) (+ main_i 204)) (= (select main_a (+ main_i 204)) 23))} is VALID [2019-01-31 14:42:26,129 INFO L134 CoverageAnalysis]: Checked inductivity of 2652 backedges. 0 proven. 2652 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-31 14:42:26,148 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-01-31 14:42:26,148 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [54, 54, 54] total 161 [2019-01-31 14:42:26,148 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-01-31 14:42:26,149 INFO L78 Accepts]: Start accepts. Automaton has 109 states. Word has length 105 [2019-01-31 14:42:26,149 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-01-31 14:42:26,149 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 109 states. [2019-01-31 14:42:26,401 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 209 edges. 209 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-01-31 14:42:26,401 INFO L459 AbstractCegarLoop]: Interpolant automaton has 109 states [2019-01-31 14:42:26,401 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 109 interpolants. [2019-01-31 14:42:26,402 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3194, Invalid=23212, Unknown=0, NotChecked=0, Total=26406 [2019-01-31 14:42:26,403 INFO L87 Difference]: Start difference. First operand 106 states and 106 transitions. Second operand 109 states. [2019-01-31 14:42:46,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 14:42:46,409 INFO L93 Difference]: Finished difference Result 110 states and 110 transitions. [2019-01-31 14:42:46,409 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2019-01-31 14:42:46,409 INFO L78 Accepts]: Start accepts. Automaton has 109 states. Word has length 105 [2019-01-31 14:42:46,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-31 14:42:46,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2019-01-31 14:42:46,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 110 transitions. [2019-01-31 14:42:46,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2019-01-31 14:42:46,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 110 transitions. [2019-01-31 14:42:46,412 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 56 states and 110 transitions. [2019-01-31 14:42:46,529 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 14:42:46,531 INFO L225 Difference]: With dead ends: 110 [2019-01-31 14:42:46,531 INFO L226 Difference]: Without dead ends: 109 [2019-01-31 14:42:46,532 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 262 GetRequests, 100 SyntacticMatches, 1 SemanticMatches, 161 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5936 ImplicationChecksByTransitivity, 14.8s TimeCoverageRelationStatistics Valid=3194, Invalid=23212, Unknown=0, NotChecked=0, Total=26406 [2019-01-31 14:42:46,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2019-01-31 14:42:46,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 108. [2019-01-31 14:42:46,631 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-01-31 14:42:46,631 INFO L82 GeneralOperation]: Start isEquivalent. First operand 109 states. Second operand 108 states. [2019-01-31 14:42:46,631 INFO L74 IsIncluded]: Start isIncluded. First operand 109 states. Second operand 108 states. [2019-01-31 14:42:46,631 INFO L87 Difference]: Start difference. First operand 109 states. Second operand 108 states. [2019-01-31 14:42:46,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 14:42:46,633 INFO L93 Difference]: Finished difference Result 109 states and 109 transitions. [2019-01-31 14:42:46,633 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 109 transitions. [2019-01-31 14:42:46,633 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-31 14:42:46,633 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-01-31 14:42:46,634 INFO L74 IsIncluded]: Start isIncluded. First operand 108 states. Second operand 109 states. [2019-01-31 14:42:46,634 INFO L87 Difference]: Start difference. First operand 108 states. Second operand 109 states. [2019-01-31 14:42:46,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 14:42:46,635 INFO L93 Difference]: Finished difference Result 109 states and 109 transitions. [2019-01-31 14:42:46,635 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 109 transitions. [2019-01-31 14:42:46,635 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-31 14:42:46,635 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-01-31 14:42:46,635 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-01-31 14:42:46,635 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-01-31 14:42:46,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 108 states. [2019-01-31 14:42:46,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 108 transitions. [2019-01-31 14:42:46,637 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 108 transitions. Word has length 105 [2019-01-31 14:42:46,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-31 14:42:46,637 INFO L480 AbstractCegarLoop]: Abstraction has 108 states and 108 transitions. [2019-01-31 14:42:46,637 INFO L481 AbstractCegarLoop]: Interpolant automaton has 109 states. [2019-01-31 14:42:46,637 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 108 transitions. [2019-01-31 14:42:46,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2019-01-31 14:42:46,637 INFO L394 BasicCegarLoop]: Found error trace [2019-01-31 14:42:46,637 INFO L402 BasicCegarLoop]: trace histogram [53, 52, 1, 1] [2019-01-31 14:42:46,637 INFO L423 AbstractCegarLoop]: === Iteration 53 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-01-31 14:42:46,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-31 14:42:46,638 INFO L82 PathProgramCache]: Analyzing trace with hash -1914541240, now seen corresponding path program 52 times [2019-01-31 14:42:46,638 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-01-31 14:42:46,638 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-31 14:42:46,638 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-01-31 14:42:46,638 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-31 14:42:46,639 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-01-31 14:42:46,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-31 14:42:47,024 WARN L181 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 18 [2019-01-31 14:42:50,277 INFO L273 TraceCheckUtils]: 0: Hoare triple {36111#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {36113#(and (or (<= main_i 0) (<= main_n 52)) (or (and (<= 0 main_i) (= 23 (select main_a (* 4 main_n)))) (< 52 main_n)))} is VALID [2019-01-31 14:42:50,278 INFO L273 TraceCheckUtils]: 1: Hoare triple {36113#(and (or (<= main_i 0) (<= main_n 52)) (or (and (<= 0 main_i) (= 23 (select main_a (* 4 main_n)))) (< 52 main_n)))} assume a[i] != 23;i := i + 4; {36114#(and (or (< 52 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i))) (or (<= main_n 52) (<= main_i 4)))} is VALID [2019-01-31 14:42:50,279 INFO L273 TraceCheckUtils]: 2: Hoare triple {36114#(and (or (< 52 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i))) (or (<= main_n 52) (<= main_i 4)))} assume i <= n * 4; {36114#(and (or (< 52 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i))) (or (<= main_n 52) (<= main_i 4)))} is VALID [2019-01-31 14:42:50,280 INFO L273 TraceCheckUtils]: 3: Hoare triple {36114#(and (or (< 52 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i))) (or (<= main_n 52) (<= main_i 4)))} assume a[i] != 23;i := i + 4; {36115#(and (or (< 52 main_n) (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 8) (<= main_n 52)))} is VALID [2019-01-31 14:42:50,281 INFO L273 TraceCheckUtils]: 4: Hoare triple {36115#(and (or (< 52 main_n) (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 8) (<= main_n 52)))} assume i <= n * 4; {36115#(and (or (< 52 main_n) (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 8) (<= main_n 52)))} is VALID [2019-01-31 14:42:50,282 INFO L273 TraceCheckUtils]: 5: Hoare triple {36115#(and (or (< 52 main_n) (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 8) (<= main_n 52)))} assume a[i] != 23;i := i + 4; {36116#(and (or (< 52 main_n) (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 52) (<= main_i 12)))} is VALID [2019-01-31 14:42:50,283 INFO L273 TraceCheckUtils]: 6: Hoare triple {36116#(and (or (< 52 main_n) (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 52) (<= main_i 12)))} assume i <= n * 4; {36116#(and (or (< 52 main_n) (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 52) (<= main_i 12)))} is VALID [2019-01-31 14:42:50,284 INFO L273 TraceCheckUtils]: 7: Hoare triple {36116#(and (or (< 52 main_n) (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 52) (<= main_i 12)))} assume a[i] != 23;i := i + 4; {36117#(and (or (< 52 main_n) (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 52) (<= main_i 16)))} is VALID [2019-01-31 14:42:50,284 INFO L273 TraceCheckUtils]: 8: Hoare triple {36117#(and (or (< 52 main_n) (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 52) (<= main_i 16)))} assume i <= n * 4; {36117#(and (or (< 52 main_n) (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 52) (<= main_i 16)))} is VALID [2019-01-31 14:42:50,285 INFO L273 TraceCheckUtils]: 9: Hoare triple {36117#(and (or (< 52 main_n) (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 52) (<= main_i 16)))} assume a[i] != 23;i := i + 4; {36118#(and (or (<= main_i 20) (<= main_n 52)) (or (< 52 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:42:50,286 INFO L273 TraceCheckUtils]: 10: Hoare triple {36118#(and (or (<= main_i 20) (<= main_n 52)) (or (< 52 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {36118#(and (or (<= main_i 20) (<= main_n 52)) (or (< 52 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:42:50,287 INFO L273 TraceCheckUtils]: 11: Hoare triple {36118#(and (or (<= main_i 20) (<= main_n 52)) (or (< 52 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {36119#(and (or (<= main_i 24) (<= main_n 52)) (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 52 main_n)))} is VALID [2019-01-31 14:42:50,288 INFO L273 TraceCheckUtils]: 12: Hoare triple {36119#(and (or (<= main_i 24) (<= main_n 52)) (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 52 main_n)))} assume i <= n * 4; {36119#(and (or (<= main_i 24) (<= main_n 52)) (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 52 main_n)))} is VALID [2019-01-31 14:42:50,289 INFO L273 TraceCheckUtils]: 13: Hoare triple {36119#(and (or (<= main_i 24) (<= main_n 52)) (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 52 main_n)))} assume a[i] != 23;i := i + 4; {36120#(and (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 52 main_n)) (or (<= main_n 52) (<= main_i 28)))} is VALID [2019-01-31 14:42:50,290 INFO L273 TraceCheckUtils]: 14: Hoare triple {36120#(and (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 52 main_n)) (or (<= main_n 52) (<= main_i 28)))} assume i <= n * 4; {36120#(and (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 52 main_n)) (or (<= main_n 52) (<= main_i 28)))} is VALID [2019-01-31 14:42:50,291 INFO L273 TraceCheckUtils]: 15: Hoare triple {36120#(and (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 52 main_n)) (or (<= main_n 52) (<= main_i 28)))} assume a[i] != 23;i := i + 4; {36121#(and (or (<= main_i 32) (<= main_n 52)) (or (< 52 main_n) (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:42:50,291 INFO L273 TraceCheckUtils]: 16: Hoare triple {36121#(and (or (<= main_i 32) (<= main_n 52)) (or (< 52 main_n) (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {36121#(and (or (<= main_i 32) (<= main_n 52)) (or (< 52 main_n) (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:42:50,292 INFO L273 TraceCheckUtils]: 17: Hoare triple {36121#(and (or (<= main_i 32) (<= main_n 52)) (or (< 52 main_n) (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {36122#(and (or (<= main_i 36) (<= main_n 52)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i)) (< 52 main_n)))} is VALID [2019-01-31 14:42:50,293 INFO L273 TraceCheckUtils]: 18: Hoare triple {36122#(and (or (<= main_i 36) (<= main_n 52)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i)) (< 52 main_n)))} assume i <= n * 4; {36122#(and (or (<= main_i 36) (<= main_n 52)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i)) (< 52 main_n)))} is VALID [2019-01-31 14:42:50,294 INFO L273 TraceCheckUtils]: 19: Hoare triple {36122#(and (or (<= main_i 36) (<= main_n 52)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i)) (< 52 main_n)))} assume a[i] != 23;i := i + 4; {36123#(and (or (<= main_i 40) (<= main_n 52)) (or (< 52 main_n) (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:42:50,295 INFO L273 TraceCheckUtils]: 20: Hoare triple {36123#(and (or (<= main_i 40) (<= main_n 52)) (or (< 52 main_n) (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {36123#(and (or (<= main_i 40) (<= main_n 52)) (or (< 52 main_n) (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:42:50,296 INFO L273 TraceCheckUtils]: 21: Hoare triple {36123#(and (or (<= main_i 40) (<= main_n 52)) (or (< 52 main_n) (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {36124#(and (or (< 52 main_n) (and (<= 44 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 52) (<= main_i 44)))} is VALID [2019-01-31 14:42:50,297 INFO L273 TraceCheckUtils]: 22: Hoare triple {36124#(and (or (< 52 main_n) (and (<= 44 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 52) (<= main_i 44)))} assume i <= n * 4; {36124#(and (or (< 52 main_n) (and (<= 44 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 52) (<= main_i 44)))} is VALID [2019-01-31 14:42:50,298 INFO L273 TraceCheckUtils]: 23: Hoare triple {36124#(and (or (< 52 main_n) (and (<= 44 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 52) (<= main_i 44)))} assume a[i] != 23;i := i + 4; {36125#(and (or (<= main_n 52) (<= main_i 48)) (or (and (<= 48 main_i) (= 23 (select main_a (* 4 main_n)))) (< 52 main_n)))} is VALID [2019-01-31 14:42:50,299 INFO L273 TraceCheckUtils]: 24: Hoare triple {36125#(and (or (<= main_n 52) (<= main_i 48)) (or (and (<= 48 main_i) (= 23 (select main_a (* 4 main_n)))) (< 52 main_n)))} assume i <= n * 4; {36125#(and (or (<= main_n 52) (<= main_i 48)) (or (and (<= 48 main_i) (= 23 (select main_a (* 4 main_n)))) (< 52 main_n)))} is VALID [2019-01-31 14:42:50,300 INFO L273 TraceCheckUtils]: 25: Hoare triple {36125#(and (or (<= main_n 52) (<= main_i 48)) (or (and (<= 48 main_i) (= 23 (select main_a (* 4 main_n)))) (< 52 main_n)))} assume a[i] != 23;i := i + 4; {36126#(and (or (and (<= 52 main_i) (= 23 (select main_a (* 4 main_n)))) (< 52 main_n)) (or (<= main_i 52) (<= main_n 52)))} is VALID [2019-01-31 14:42:50,300 INFO L273 TraceCheckUtils]: 26: Hoare triple {36126#(and (or (and (<= 52 main_i) (= 23 (select main_a (* 4 main_n)))) (< 52 main_n)) (or (<= main_i 52) (<= main_n 52)))} assume i <= n * 4; {36126#(and (or (and (<= 52 main_i) (= 23 (select main_a (* 4 main_n)))) (< 52 main_n)) (or (<= main_i 52) (<= main_n 52)))} is VALID [2019-01-31 14:42:50,301 INFO L273 TraceCheckUtils]: 27: Hoare triple {36126#(and (or (and (<= 52 main_i) (= 23 (select main_a (* 4 main_n)))) (< 52 main_n)) (or (<= main_i 52) (<= main_n 52)))} assume a[i] != 23;i := i + 4; {36127#(and (or (<= main_i 56) (<= main_n 52)) (or (< 52 main_n) (and (<= 56 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:42:50,302 INFO L273 TraceCheckUtils]: 28: Hoare triple {36127#(and (or (<= main_i 56) (<= main_n 52)) (or (< 52 main_n) (and (<= 56 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {36127#(and (or (<= main_i 56) (<= main_n 52)) (or (< 52 main_n) (and (<= 56 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:42:50,303 INFO L273 TraceCheckUtils]: 29: Hoare triple {36127#(and (or (<= main_i 56) (<= main_n 52)) (or (< 52 main_n) (and (<= 56 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {36128#(and (or (< 52 main_n) (and (<= 60 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 60) (<= main_n 52)))} is VALID [2019-01-31 14:42:50,304 INFO L273 TraceCheckUtils]: 30: Hoare triple {36128#(and (or (< 52 main_n) (and (<= 60 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 60) (<= main_n 52)))} assume i <= n * 4; {36128#(and (or (< 52 main_n) (and (<= 60 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 60) (<= main_n 52)))} is VALID [2019-01-31 14:42:50,305 INFO L273 TraceCheckUtils]: 31: Hoare triple {36128#(and (or (< 52 main_n) (and (<= 60 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 60) (<= main_n 52)))} assume a[i] != 23;i := i + 4; {36129#(and (or (<= main_i 64) (<= main_n 52)) (or (< 52 main_n) (and (<= 64 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:42:50,306 INFO L273 TraceCheckUtils]: 32: Hoare triple {36129#(and (or (<= main_i 64) (<= main_n 52)) (or (< 52 main_n) (and (<= 64 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {36129#(and (or (<= main_i 64) (<= main_n 52)) (or (< 52 main_n) (and (<= 64 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:42:50,307 INFO L273 TraceCheckUtils]: 33: Hoare triple {36129#(and (or (<= main_i 64) (<= main_n 52)) (or (< 52 main_n) (and (<= 64 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {36130#(and (or (and (<= 68 main_i) (= 23 (select main_a (* 4 main_n)))) (< 52 main_n)) (or (<= main_n 52) (<= main_i 68)))} is VALID [2019-01-31 14:42:50,307 INFO L273 TraceCheckUtils]: 34: Hoare triple {36130#(and (or (and (<= 68 main_i) (= 23 (select main_a (* 4 main_n)))) (< 52 main_n)) (or (<= main_n 52) (<= main_i 68)))} assume i <= n * 4; {36130#(and (or (and (<= 68 main_i) (= 23 (select main_a (* 4 main_n)))) (< 52 main_n)) (or (<= main_n 52) (<= main_i 68)))} is VALID [2019-01-31 14:42:50,308 INFO L273 TraceCheckUtils]: 35: Hoare triple {36130#(and (or (and (<= 68 main_i) (= 23 (select main_a (* 4 main_n)))) (< 52 main_n)) (or (<= main_n 52) (<= main_i 68)))} assume a[i] != 23;i := i + 4; {36131#(and (or (<= main_i 72) (<= main_n 52)) (or (and (<= 72 main_i) (= 23 (select main_a (* 4 main_n)))) (< 52 main_n)))} is VALID [2019-01-31 14:42:50,309 INFO L273 TraceCheckUtils]: 36: Hoare triple {36131#(and (or (<= main_i 72) (<= main_n 52)) (or (and (<= 72 main_i) (= 23 (select main_a (* 4 main_n)))) (< 52 main_n)))} assume i <= n * 4; {36131#(and (or (<= main_i 72) (<= main_n 52)) (or (and (<= 72 main_i) (= 23 (select main_a (* 4 main_n)))) (< 52 main_n)))} is VALID [2019-01-31 14:42:50,310 INFO L273 TraceCheckUtils]: 37: Hoare triple {36131#(and (or (<= main_i 72) (<= main_n 52)) (or (and (<= 72 main_i) (= 23 (select main_a (* 4 main_n)))) (< 52 main_n)))} assume a[i] != 23;i := i + 4; {36132#(and (or (<= main_i 76) (<= main_n 52)) (or (and (<= 76 main_i) (= 23 (select main_a (* 4 main_n)))) (< 52 main_n)))} is VALID [2019-01-31 14:42:50,311 INFO L273 TraceCheckUtils]: 38: Hoare triple {36132#(and (or (<= main_i 76) (<= main_n 52)) (or (and (<= 76 main_i) (= 23 (select main_a (* 4 main_n)))) (< 52 main_n)))} assume i <= n * 4; {36132#(and (or (<= main_i 76) (<= main_n 52)) (or (and (<= 76 main_i) (= 23 (select main_a (* 4 main_n)))) (< 52 main_n)))} is VALID [2019-01-31 14:42:50,312 INFO L273 TraceCheckUtils]: 39: Hoare triple {36132#(and (or (<= main_i 76) (<= main_n 52)) (or (and (<= 76 main_i) (= 23 (select main_a (* 4 main_n)))) (< 52 main_n)))} assume a[i] != 23;i := i + 4; {36133#(and (or (<= main_n 52) (<= main_i 80)) (or (< 52 main_n) (and (<= 80 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:42:50,313 INFO L273 TraceCheckUtils]: 40: Hoare triple {36133#(and (or (<= main_n 52) (<= main_i 80)) (or (< 52 main_n) (and (<= 80 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {36133#(and (or (<= main_n 52) (<= main_i 80)) (or (< 52 main_n) (and (<= 80 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:42:50,314 INFO L273 TraceCheckUtils]: 41: Hoare triple {36133#(and (or (<= main_n 52) (<= main_i 80)) (or (< 52 main_n) (and (<= 80 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {36134#(and (or (<= main_i 84) (<= main_n 52)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 84 main_i)) (< 52 main_n)))} is VALID [2019-01-31 14:42:50,315 INFO L273 TraceCheckUtils]: 42: Hoare triple {36134#(and (or (<= main_i 84) (<= main_n 52)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 84 main_i)) (< 52 main_n)))} assume i <= n * 4; {36134#(and (or (<= main_i 84) (<= main_n 52)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 84 main_i)) (< 52 main_n)))} is VALID [2019-01-31 14:42:50,316 INFO L273 TraceCheckUtils]: 43: Hoare triple {36134#(and (or (<= main_i 84) (<= main_n 52)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 84 main_i)) (< 52 main_n)))} assume a[i] != 23;i := i + 4; {36135#(and (or (< 52 main_n) (and (<= 88 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 88) (<= main_n 52)))} is VALID [2019-01-31 14:42:50,316 INFO L273 TraceCheckUtils]: 44: Hoare triple {36135#(and (or (< 52 main_n) (and (<= 88 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 88) (<= main_n 52)))} assume i <= n * 4; {36135#(and (or (< 52 main_n) (and (<= 88 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 88) (<= main_n 52)))} is VALID [2019-01-31 14:42:50,317 INFO L273 TraceCheckUtils]: 45: Hoare triple {36135#(and (or (< 52 main_n) (and (<= 88 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 88) (<= main_n 52)))} assume a[i] != 23;i := i + 4; {36136#(and (or (< 52 main_n) (and (<= 92 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 92) (<= main_n 52)))} is VALID [2019-01-31 14:42:50,318 INFO L273 TraceCheckUtils]: 46: Hoare triple {36136#(and (or (< 52 main_n) (and (<= 92 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 92) (<= main_n 52)))} assume i <= n * 4; {36136#(and (or (< 52 main_n) (and (<= 92 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 92) (<= main_n 52)))} is VALID [2019-01-31 14:42:50,319 INFO L273 TraceCheckUtils]: 47: Hoare triple {36136#(and (or (< 52 main_n) (and (<= 92 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 92) (<= main_n 52)))} assume a[i] != 23;i := i + 4; {36137#(and (or (and (<= 96 main_i) (= 23 (select main_a (* 4 main_n)))) (< 52 main_n)) (or (<= main_i 96) (<= main_n 52)))} is VALID [2019-01-31 14:42:50,320 INFO L273 TraceCheckUtils]: 48: Hoare triple {36137#(and (or (and (<= 96 main_i) (= 23 (select main_a (* 4 main_n)))) (< 52 main_n)) (or (<= main_i 96) (<= main_n 52)))} assume i <= n * 4; {36137#(and (or (and (<= 96 main_i) (= 23 (select main_a (* 4 main_n)))) (< 52 main_n)) (or (<= main_i 96) (<= main_n 52)))} is VALID [2019-01-31 14:42:50,321 INFO L273 TraceCheckUtils]: 49: Hoare triple {36137#(and (or (and (<= 96 main_i) (= 23 (select main_a (* 4 main_n)))) (< 52 main_n)) (or (<= main_i 96) (<= main_n 52)))} assume a[i] != 23;i := i + 4; {36138#(and (or (<= main_i 100) (<= main_n 52)) (or (and (<= 100 main_i) (= 23 (select main_a (* 4 main_n)))) (< 52 main_n)))} is VALID [2019-01-31 14:42:50,322 INFO L273 TraceCheckUtils]: 50: Hoare triple {36138#(and (or (<= main_i 100) (<= main_n 52)) (or (and (<= 100 main_i) (= 23 (select main_a (* 4 main_n)))) (< 52 main_n)))} assume i <= n * 4; {36138#(and (or (<= main_i 100) (<= main_n 52)) (or (and (<= 100 main_i) (= 23 (select main_a (* 4 main_n)))) (< 52 main_n)))} is VALID [2019-01-31 14:42:50,323 INFO L273 TraceCheckUtils]: 51: Hoare triple {36138#(and (or (<= main_i 100) (<= main_n 52)) (or (and (<= 100 main_i) (= 23 (select main_a (* 4 main_n)))) (< 52 main_n)))} assume a[i] != 23;i := i + 4; {36139#(and (or (<= main_i 104) (<= main_n 52)) (or (and (<= 104 main_i) (= 23 (select main_a (* 4 main_n)))) (< 52 main_n)))} is VALID [2019-01-31 14:42:50,323 INFO L273 TraceCheckUtils]: 52: Hoare triple {36139#(and (or (<= main_i 104) (<= main_n 52)) (or (and (<= 104 main_i) (= 23 (select main_a (* 4 main_n)))) (< 52 main_n)))} assume i <= n * 4; {36139#(and (or (<= main_i 104) (<= main_n 52)) (or (and (<= 104 main_i) (= 23 (select main_a (* 4 main_n)))) (< 52 main_n)))} is VALID [2019-01-31 14:42:50,325 INFO L273 TraceCheckUtils]: 53: Hoare triple {36139#(and (or (<= main_i 104) (<= main_n 52)) (or (and (<= 104 main_i) (= 23 (select main_a (* 4 main_n)))) (< 52 main_n)))} assume a[i] != 23;i := i + 4; {36140#(and (or (<= main_n 52) (<= main_i 108)) (or (< 52 main_n) (and (<= 108 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:42:50,325 INFO L273 TraceCheckUtils]: 54: Hoare triple {36140#(and (or (<= main_n 52) (<= main_i 108)) (or (< 52 main_n) (and (<= 108 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {36140#(and (or (<= main_n 52) (<= main_i 108)) (or (< 52 main_n) (and (<= 108 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:42:50,326 INFO L273 TraceCheckUtils]: 55: Hoare triple {36140#(and (or (<= main_n 52) (<= main_i 108)) (or (< 52 main_n) (and (<= 108 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {36141#(and (or (< 52 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 112 main_i))) (or (<= main_n 52) (<= main_i 112)))} is VALID [2019-01-31 14:42:50,327 INFO L273 TraceCheckUtils]: 56: Hoare triple {36141#(and (or (< 52 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 112 main_i))) (or (<= main_n 52) (<= main_i 112)))} assume i <= n * 4; {36141#(and (or (< 52 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 112 main_i))) (or (<= main_n 52) (<= main_i 112)))} is VALID [2019-01-31 14:42:50,328 INFO L273 TraceCheckUtils]: 57: Hoare triple {36141#(and (or (< 52 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 112 main_i))) (or (<= main_n 52) (<= main_i 112)))} assume a[i] != 23;i := i + 4; {36142#(and (or (<= main_i 116) (<= main_n 52)) (or (< 52 main_n) (and (<= 116 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:42:50,329 INFO L273 TraceCheckUtils]: 58: Hoare triple {36142#(and (or (<= main_i 116) (<= main_n 52)) (or (< 52 main_n) (and (<= 116 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {36142#(and (or (<= main_i 116) (<= main_n 52)) (or (< 52 main_n) (and (<= 116 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:42:50,330 INFO L273 TraceCheckUtils]: 59: Hoare triple {36142#(and (or (<= main_i 116) (<= main_n 52)) (or (< 52 main_n) (and (<= 116 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {36143#(and (or (<= main_i 120) (<= main_n 52)) (or (< 52 main_n) (and (<= 120 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:42:50,331 INFO L273 TraceCheckUtils]: 60: Hoare triple {36143#(and (or (<= main_i 120) (<= main_n 52)) (or (< 52 main_n) (and (<= 120 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {36143#(and (or (<= main_i 120) (<= main_n 52)) (or (< 52 main_n) (and (<= 120 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:42:50,332 INFO L273 TraceCheckUtils]: 61: Hoare triple {36143#(and (or (<= main_i 120) (<= main_n 52)) (or (< 52 main_n) (and (<= 120 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {36144#(and (or (and (<= 124 main_i) (= 23 (select main_a (* 4 main_n)))) (< 52 main_n)) (or (<= main_i 124) (<= main_n 52)))} is VALID [2019-01-31 14:42:50,332 INFO L273 TraceCheckUtils]: 62: Hoare triple {36144#(and (or (and (<= 124 main_i) (= 23 (select main_a (* 4 main_n)))) (< 52 main_n)) (or (<= main_i 124) (<= main_n 52)))} assume i <= n * 4; {36144#(and (or (and (<= 124 main_i) (= 23 (select main_a (* 4 main_n)))) (< 52 main_n)) (or (<= main_i 124) (<= main_n 52)))} is VALID [2019-01-31 14:42:50,334 INFO L273 TraceCheckUtils]: 63: Hoare triple {36144#(and (or (and (<= 124 main_i) (= 23 (select main_a (* 4 main_n)))) (< 52 main_n)) (or (<= main_i 124) (<= main_n 52)))} assume a[i] != 23;i := i + 4; {36145#(and (or (<= main_i 128) (<= main_n 52)) (or (< 52 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 128 main_i))))} is VALID [2019-01-31 14:42:50,334 INFO L273 TraceCheckUtils]: 64: Hoare triple {36145#(and (or (<= main_i 128) (<= main_n 52)) (or (< 52 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 128 main_i))))} assume i <= n * 4; {36145#(and (or (<= main_i 128) (<= main_n 52)) (or (< 52 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 128 main_i))))} is VALID [2019-01-31 14:42:50,335 INFO L273 TraceCheckUtils]: 65: Hoare triple {36145#(and (or (<= main_i 128) (<= main_n 52)) (or (< 52 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 128 main_i))))} assume a[i] != 23;i := i + 4; {36146#(and (or (< 52 main_n) (and (<= 132 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 132) (<= main_n 52)))} is VALID [2019-01-31 14:42:50,336 INFO L273 TraceCheckUtils]: 66: Hoare triple {36146#(and (or (< 52 main_n) (and (<= 132 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 132) (<= main_n 52)))} assume i <= n * 4; {36146#(and (or (< 52 main_n) (and (<= 132 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 132) (<= main_n 52)))} is VALID [2019-01-31 14:42:50,337 INFO L273 TraceCheckUtils]: 67: Hoare triple {36146#(and (or (< 52 main_n) (and (<= 132 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 132) (<= main_n 52)))} assume a[i] != 23;i := i + 4; {36147#(and (or (< 52 main_n) (and (<= 136 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 136) (<= main_n 52)))} is VALID [2019-01-31 14:42:50,338 INFO L273 TraceCheckUtils]: 68: Hoare triple {36147#(and (or (< 52 main_n) (and (<= 136 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 136) (<= main_n 52)))} assume i <= n * 4; {36147#(and (or (< 52 main_n) (and (<= 136 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 136) (<= main_n 52)))} is VALID [2019-01-31 14:42:50,339 INFO L273 TraceCheckUtils]: 69: Hoare triple {36147#(and (or (< 52 main_n) (and (<= 136 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 136) (<= main_n 52)))} assume a[i] != 23;i := i + 4; {36148#(and (or (<= main_n 52) (<= main_i 140)) (or (< 52 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 140 main_i))))} is VALID [2019-01-31 14:42:50,340 INFO L273 TraceCheckUtils]: 70: Hoare triple {36148#(and (or (<= main_n 52) (<= main_i 140)) (or (< 52 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 140 main_i))))} assume i <= n * 4; {36148#(and (or (<= main_n 52) (<= main_i 140)) (or (< 52 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 140 main_i))))} is VALID [2019-01-31 14:42:50,341 INFO L273 TraceCheckUtils]: 71: Hoare triple {36148#(and (or (<= main_n 52) (<= main_i 140)) (or (< 52 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 140 main_i))))} assume a[i] != 23;i := i + 4; {36149#(and (or (<= main_n 52) (<= main_i 144)) (or (< 52 main_n) (and (<= 144 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:42:50,342 INFO L273 TraceCheckUtils]: 72: Hoare triple {36149#(and (or (<= main_n 52) (<= main_i 144)) (or (< 52 main_n) (and (<= 144 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {36149#(and (or (<= main_n 52) (<= main_i 144)) (or (< 52 main_n) (and (<= 144 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:42:50,343 INFO L273 TraceCheckUtils]: 73: Hoare triple {36149#(and (or (<= main_n 52) (<= main_i 144)) (or (< 52 main_n) (and (<= 144 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {36150#(and (or (<= main_n 52) (<= main_i 148)) (or (< 52 main_n) (and (<= 148 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:42:50,344 INFO L273 TraceCheckUtils]: 74: Hoare triple {36150#(and (or (<= main_n 52) (<= main_i 148)) (or (< 52 main_n) (and (<= 148 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {36150#(and (or (<= main_n 52) (<= main_i 148)) (or (< 52 main_n) (and (<= 148 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:42:50,345 INFO L273 TraceCheckUtils]: 75: Hoare triple {36150#(and (or (<= main_n 52) (<= main_i 148)) (or (< 52 main_n) (and (<= 148 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {36151#(and (or (<= main_n 52) (<= main_i 152)) (or (and (<= 152 main_i) (= 23 (select main_a (* 4 main_n)))) (< 52 main_n)))} is VALID [2019-01-31 14:42:50,346 INFO L273 TraceCheckUtils]: 76: Hoare triple {36151#(and (or (<= main_n 52) (<= main_i 152)) (or (and (<= 152 main_i) (= 23 (select main_a (* 4 main_n)))) (< 52 main_n)))} assume i <= n * 4; {36151#(and (or (<= main_n 52) (<= main_i 152)) (or (and (<= 152 main_i) (= 23 (select main_a (* 4 main_n)))) (< 52 main_n)))} is VALID [2019-01-31 14:42:50,347 INFO L273 TraceCheckUtils]: 77: Hoare triple {36151#(and (or (<= main_n 52) (<= main_i 152)) (or (and (<= 152 main_i) (= 23 (select main_a (* 4 main_n)))) (< 52 main_n)))} assume a[i] != 23;i := i + 4; {36152#(and (or (<= main_i 156) (<= main_n 52)) (or (< 52 main_n) (and (<= 156 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:42:50,347 INFO L273 TraceCheckUtils]: 78: Hoare triple {36152#(and (or (<= main_i 156) (<= main_n 52)) (or (< 52 main_n) (and (<= 156 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {36152#(and (or (<= main_i 156) (<= main_n 52)) (or (< 52 main_n) (and (<= 156 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:42:50,349 INFO L273 TraceCheckUtils]: 79: Hoare triple {36152#(and (or (<= main_i 156) (<= main_n 52)) (or (< 52 main_n) (and (<= 156 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {36153#(and (or (<= main_n 52) (<= main_i 160)) (or (< 52 main_n) (and (<= 160 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:42:50,349 INFO L273 TraceCheckUtils]: 80: Hoare triple {36153#(and (or (<= main_n 52) (<= main_i 160)) (or (< 52 main_n) (and (<= 160 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {36153#(and (or (<= main_n 52) (<= main_i 160)) (or (< 52 main_n) (and (<= 160 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:42:50,350 INFO L273 TraceCheckUtils]: 81: Hoare triple {36153#(and (or (<= main_n 52) (<= main_i 160)) (or (< 52 main_n) (and (<= 160 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {36154#(and (or (and (<= 164 main_i) (= 23 (select main_a (* 4 main_n)))) (< 52 main_n)) (or (<= main_i 164) (<= main_n 52)))} is VALID [2019-01-31 14:42:50,351 INFO L273 TraceCheckUtils]: 82: Hoare triple {36154#(and (or (and (<= 164 main_i) (= 23 (select main_a (* 4 main_n)))) (< 52 main_n)) (or (<= main_i 164) (<= main_n 52)))} assume i <= n * 4; {36154#(and (or (and (<= 164 main_i) (= 23 (select main_a (* 4 main_n)))) (< 52 main_n)) (or (<= main_i 164) (<= main_n 52)))} is VALID [2019-01-31 14:42:50,352 INFO L273 TraceCheckUtils]: 83: Hoare triple {36154#(and (or (and (<= 164 main_i) (= 23 (select main_a (* 4 main_n)))) (< 52 main_n)) (or (<= main_i 164) (<= main_n 52)))} assume a[i] != 23;i := i + 4; {36155#(and (or (<= main_n 52) (<= main_i 168)) (or (< 52 main_n) (and (<= 168 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:42:50,353 INFO L273 TraceCheckUtils]: 84: Hoare triple {36155#(and (or (<= main_n 52) (<= main_i 168)) (or (< 52 main_n) (and (<= 168 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {36155#(and (or (<= main_n 52) (<= main_i 168)) (or (< 52 main_n) (and (<= 168 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:42:50,354 INFO L273 TraceCheckUtils]: 85: Hoare triple {36155#(and (or (<= main_n 52) (<= main_i 168)) (or (< 52 main_n) (and (<= 168 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {36156#(and (or (< 52 main_n) (and (<= 172 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 172) (<= main_n 52)))} is VALID [2019-01-31 14:42:50,355 INFO L273 TraceCheckUtils]: 86: Hoare triple {36156#(and (or (< 52 main_n) (and (<= 172 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 172) (<= main_n 52)))} assume i <= n * 4; {36156#(and (or (< 52 main_n) (and (<= 172 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 172) (<= main_n 52)))} is VALID [2019-01-31 14:42:50,356 INFO L273 TraceCheckUtils]: 87: Hoare triple {36156#(and (or (< 52 main_n) (and (<= 172 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 172) (<= main_n 52)))} assume a[i] != 23;i := i + 4; {36157#(and (or (<= main_i 176) (<= main_n 52)) (or (< 52 main_n) (and (<= 176 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:42:50,357 INFO L273 TraceCheckUtils]: 88: Hoare triple {36157#(and (or (<= main_i 176) (<= main_n 52)) (or (< 52 main_n) (and (<= 176 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {36157#(and (or (<= main_i 176) (<= main_n 52)) (or (< 52 main_n) (and (<= 176 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:42:50,358 INFO L273 TraceCheckUtils]: 89: Hoare triple {36157#(and (or (<= main_i 176) (<= main_n 52)) (or (< 52 main_n) (and (<= 176 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {36158#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 180 main_i)) (< 52 main_n)) (or (<= main_i 180) (<= main_n 52)))} is VALID [2019-01-31 14:42:50,359 INFO L273 TraceCheckUtils]: 90: Hoare triple {36158#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 180 main_i)) (< 52 main_n)) (or (<= main_i 180) (<= main_n 52)))} assume i <= n * 4; {36158#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 180 main_i)) (< 52 main_n)) (or (<= main_i 180) (<= main_n 52)))} is VALID [2019-01-31 14:42:50,360 INFO L273 TraceCheckUtils]: 91: Hoare triple {36158#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 180 main_i)) (< 52 main_n)) (or (<= main_i 180) (<= main_n 52)))} assume a[i] != 23;i := i + 4; {36159#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 184 main_i)) (< 52 main_n)) (or (<= main_i 184) (<= main_n 52)))} is VALID [2019-01-31 14:42:50,360 INFO L273 TraceCheckUtils]: 92: Hoare triple {36159#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 184 main_i)) (< 52 main_n)) (or (<= main_i 184) (<= main_n 52)))} assume i <= n * 4; {36159#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 184 main_i)) (< 52 main_n)) (or (<= main_i 184) (<= main_n 52)))} is VALID [2019-01-31 14:42:50,362 INFO L273 TraceCheckUtils]: 93: Hoare triple {36159#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 184 main_i)) (< 52 main_n)) (or (<= main_i 184) (<= main_n 52)))} assume a[i] != 23;i := i + 4; {36160#(and (or (<= main_i 188) (<= main_n 52)) (or (< 52 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 188 main_i))))} is VALID [2019-01-31 14:42:50,362 INFO L273 TraceCheckUtils]: 94: Hoare triple {36160#(and (or (<= main_i 188) (<= main_n 52)) (or (< 52 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 188 main_i))))} assume i <= n * 4; {36160#(and (or (<= main_i 188) (<= main_n 52)) (or (< 52 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 188 main_i))))} is VALID [2019-01-31 14:42:50,363 INFO L273 TraceCheckUtils]: 95: Hoare triple {36160#(and (or (<= main_i 188) (<= main_n 52)) (or (< 52 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 188 main_i))))} assume a[i] != 23;i := i + 4; {36161#(and (or (and (<= 192 main_i) (= 23 (select main_a (* 4 main_n)))) (< 52 main_n)) (or (<= main_i 192) (<= main_n 52)))} is VALID [2019-01-31 14:42:50,364 INFO L273 TraceCheckUtils]: 96: Hoare triple {36161#(and (or (and (<= 192 main_i) (= 23 (select main_a (* 4 main_n)))) (< 52 main_n)) (or (<= main_i 192) (<= main_n 52)))} assume i <= n * 4; {36161#(and (or (and (<= 192 main_i) (= 23 (select main_a (* 4 main_n)))) (< 52 main_n)) (or (<= main_i 192) (<= main_n 52)))} is VALID [2019-01-31 14:42:50,365 INFO L273 TraceCheckUtils]: 97: Hoare triple {36161#(and (or (and (<= 192 main_i) (= 23 (select main_a (* 4 main_n)))) (< 52 main_n)) (or (<= main_i 192) (<= main_n 52)))} assume a[i] != 23;i := i + 4; {36162#(and (or (<= main_n 52) (<= main_i 196)) (or (< 52 main_n) (and (<= 196 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:42:50,366 INFO L273 TraceCheckUtils]: 98: Hoare triple {36162#(and (or (<= main_n 52) (<= main_i 196)) (or (< 52 main_n) (and (<= 196 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {36162#(and (or (<= main_n 52) (<= main_i 196)) (or (< 52 main_n) (and (<= 196 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:42:50,367 INFO L273 TraceCheckUtils]: 99: Hoare triple {36162#(and (or (<= main_n 52) (<= main_i 196)) (or (< 52 main_n) (and (<= 196 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {36163#(and (or (<= main_n 52) (<= main_i 200)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 200 main_i)) (< 52 main_n)))} is VALID [2019-01-31 14:42:50,368 INFO L273 TraceCheckUtils]: 100: Hoare triple {36163#(and (or (<= main_n 52) (<= main_i 200)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 200 main_i)) (< 52 main_n)))} assume i <= n * 4; {36163#(and (or (<= main_n 52) (<= main_i 200)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 200 main_i)) (< 52 main_n)))} is VALID [2019-01-31 14:42:50,369 INFO L273 TraceCheckUtils]: 101: Hoare triple {36163#(and (or (<= main_n 52) (<= main_i 200)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 200 main_i)) (< 52 main_n)))} assume a[i] != 23;i := i + 4; {36164#(and (or (<= main_i 204) (<= main_n 52)) (or (and (<= 204 main_i) (= 23 (select main_a (* 4 main_n)))) (< 52 main_n)))} is VALID [2019-01-31 14:42:50,370 INFO L273 TraceCheckUtils]: 102: Hoare triple {36164#(and (or (<= main_i 204) (<= main_n 52)) (or (and (<= 204 main_i) (= 23 (select main_a (* 4 main_n)))) (< 52 main_n)))} assume i <= n * 4; {36164#(and (or (<= main_i 204) (<= main_n 52)) (or (and (<= 204 main_i) (= 23 (select main_a (* 4 main_n)))) (< 52 main_n)))} is VALID [2019-01-31 14:42:50,371 INFO L273 TraceCheckUtils]: 103: Hoare triple {36164#(and (or (<= main_i 204) (<= main_n 52)) (or (and (<= 204 main_i) (= 23 (select main_a (* 4 main_n)))) (< 52 main_n)))} assume a[i] != 23;i := i + 4; {36165#(and (or (and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (<= (* 4 main_n) main_i)) (< 52 main_n)) (or (<= main_i 208) (<= main_n 52)))} is VALID [2019-01-31 14:42:50,372 INFO L273 TraceCheckUtils]: 104: Hoare triple {36165#(and (or (and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (<= (* 4 main_n) main_i)) (< 52 main_n)) (or (<= main_i 208) (<= main_n 52)))} assume i <= n * 4; {36166#(and (<= main_i 208) (or (< 52 main_n) (and (<= (* 4 main_n) main_i) (<= main_i (* 4 main_n)) (= 23 (select main_a main_i)))))} is VALID [2019-01-31 14:42:50,373 INFO L273 TraceCheckUtils]: 105: Hoare triple {36166#(and (<= main_i 208) (or (< 52 main_n) (and (<= (* 4 main_n) main_i) (<= main_i (* 4 main_n)) (= 23 (select main_a main_i)))))} assume a[i] != 23;i := i + 4; {36167#(and (<= main_i 212) (<= 53 main_n))} is VALID [2019-01-31 14:42:50,374 INFO L273 TraceCheckUtils]: 106: Hoare triple {36167#(and (<= main_i 212) (<= 53 main_n))} assume !(i <= n * 4); {36112#false} is VALID [2019-01-31 14:42:50,428 INFO L134 CoverageAnalysis]: Checked inductivity of 2756 backedges. 0 proven. 2756 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-31 14:42:50,428 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-31 14:42:50,428 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-01-31 14:42:50,428 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-01-31 14:42:50,428 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-01-31 14:42:50,428 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-31 14:42:50,428 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 14:42:50,437 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-31 14:42:50,438 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2019-01-31 14:42:50,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-31 14:42:50,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-31 14:42:50,480 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-31 14:42:50,492 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 14:42:50,499 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-01-31 14:42:50,508 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-31 14:42:50,508 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2019-01-31 14:42:50,510 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-01-31 14:42:50,510 WARN L398 uantifierElimination]: Input elimination task: ∃ [v_main_a_56]. (and (= (store v_main_a_56 (* 4 main_n) 23) main_a) (= main_i 0)) [2019-01-31 14:42:50,510 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2019-01-31 14:42:55,061 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2019-01-31 14:42:55,063 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-01-31 14:42:55,069 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-31 14:42:55,069 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2019-01-31 14:42:55,072 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-01-31 14:42:55,072 WARN L398 uantifierElimination]: Input elimination task: ∃ [main_a]. (let ((.cse0 (* 4 main_n))) (and (not (= (select main_a 208) 23)) (<= main_i 212) (= 23 (select main_a .cse0)) (<= 208 .cse0))) [2019-01-31 14:42:55,072 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (let ((.cse0 (* 4 main_n))) (and (not (= 208 .cse0)) (<= main_i 212) (<= 208 .cse0))) [2019-01-31 14:42:55,139 INFO L273 TraceCheckUtils]: 0: Hoare triple {36111#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {36171#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:42:55,139 INFO L273 TraceCheckUtils]: 1: Hoare triple {36171#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {36175#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2019-01-31 14:42:55,140 INFO L273 TraceCheckUtils]: 2: Hoare triple {36175#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume i <= n * 4; {36175#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2019-01-31 14:42:55,140 INFO L273 TraceCheckUtils]: 3: Hoare triple {36175#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume a[i] != 23;i := i + 4; {36182#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:42:55,140 INFO L273 TraceCheckUtils]: 4: Hoare triple {36182#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {36182#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:42:55,141 INFO L273 TraceCheckUtils]: 5: Hoare triple {36182#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {36189#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2019-01-31 14:42:55,142 INFO L273 TraceCheckUtils]: 6: Hoare triple {36189#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume i <= n * 4; {36189#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2019-01-31 14:42:55,142 INFO L273 TraceCheckUtils]: 7: Hoare triple {36189#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume a[i] != 23;i := i + 4; {36196#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:42:55,143 INFO L273 TraceCheckUtils]: 8: Hoare triple {36196#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {36196#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:42:55,144 INFO L273 TraceCheckUtils]: 9: Hoare triple {36196#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {36203#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:42:55,144 INFO L273 TraceCheckUtils]: 10: Hoare triple {36203#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {36203#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:42:55,145 INFO L273 TraceCheckUtils]: 11: Hoare triple {36203#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {36210#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:42:55,146 INFO L273 TraceCheckUtils]: 12: Hoare triple {36210#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {36210#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:42:55,146 INFO L273 TraceCheckUtils]: 13: Hoare triple {36210#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {36217#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:42:55,147 INFO L273 TraceCheckUtils]: 14: Hoare triple {36217#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {36217#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:42:55,148 INFO L273 TraceCheckUtils]: 15: Hoare triple {36217#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {36224#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:42:55,148 INFO L273 TraceCheckUtils]: 16: Hoare triple {36224#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {36224#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:42:55,149 INFO L273 TraceCheckUtils]: 17: Hoare triple {36224#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {36231#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:42:55,150 INFO L273 TraceCheckUtils]: 18: Hoare triple {36231#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {36231#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:42:55,150 INFO L273 TraceCheckUtils]: 19: Hoare triple {36231#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {36238#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:42:55,151 INFO L273 TraceCheckUtils]: 20: Hoare triple {36238#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {36238#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:42:55,152 INFO L273 TraceCheckUtils]: 21: Hoare triple {36238#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {36245#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:42:55,152 INFO L273 TraceCheckUtils]: 22: Hoare triple {36245#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {36245#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:42:55,153 INFO L273 TraceCheckUtils]: 23: Hoare triple {36245#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {36252#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:42:55,154 INFO L273 TraceCheckUtils]: 24: Hoare triple {36252#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {36252#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:42:55,154 INFO L273 TraceCheckUtils]: 25: Hoare triple {36252#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {36259#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:42:55,155 INFO L273 TraceCheckUtils]: 26: Hoare triple {36259#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {36259#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:42:55,156 INFO L273 TraceCheckUtils]: 27: Hoare triple {36259#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {36266#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:42:55,156 INFO L273 TraceCheckUtils]: 28: Hoare triple {36266#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {36266#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:42:55,157 INFO L273 TraceCheckUtils]: 29: Hoare triple {36266#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {36273#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:42:55,158 INFO L273 TraceCheckUtils]: 30: Hoare triple {36273#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {36273#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:42:55,158 INFO L273 TraceCheckUtils]: 31: Hoare triple {36273#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {36280#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:42:55,159 INFO L273 TraceCheckUtils]: 32: Hoare triple {36280#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {36280#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:42:55,160 INFO L273 TraceCheckUtils]: 33: Hoare triple {36280#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {36287#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:42:55,160 INFO L273 TraceCheckUtils]: 34: Hoare triple {36287#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {36287#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:42:55,161 INFO L273 TraceCheckUtils]: 35: Hoare triple {36287#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {36294#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:42:55,162 INFO L273 TraceCheckUtils]: 36: Hoare triple {36294#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {36294#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:42:55,162 INFO L273 TraceCheckUtils]: 37: Hoare triple {36294#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {36301#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:42:55,163 INFO L273 TraceCheckUtils]: 38: Hoare triple {36301#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {36301#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:42:55,164 INFO L273 TraceCheckUtils]: 39: Hoare triple {36301#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {36308#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} is VALID [2019-01-31 14:42:55,164 INFO L273 TraceCheckUtils]: 40: Hoare triple {36308#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} assume i <= n * 4; {36308#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} is VALID [2019-01-31 14:42:55,165 INFO L273 TraceCheckUtils]: 41: Hoare triple {36308#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} assume a[i] != 23;i := i + 4; {36315#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:42:55,166 INFO L273 TraceCheckUtils]: 42: Hoare triple {36315#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {36315#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:42:55,167 INFO L273 TraceCheckUtils]: 43: Hoare triple {36315#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {36322#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:42:55,167 INFO L273 TraceCheckUtils]: 44: Hoare triple {36322#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {36322#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:42:55,168 INFO L273 TraceCheckUtils]: 45: Hoare triple {36322#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {36329#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:42:55,169 INFO L273 TraceCheckUtils]: 46: Hoare triple {36329#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {36329#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:42:55,169 INFO L273 TraceCheckUtils]: 47: Hoare triple {36329#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {36336#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:42:55,170 INFO L273 TraceCheckUtils]: 48: Hoare triple {36336#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {36336#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:42:55,171 INFO L273 TraceCheckUtils]: 49: Hoare triple {36336#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {36343#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:42:55,171 INFO L273 TraceCheckUtils]: 50: Hoare triple {36343#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {36343#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:42:55,172 INFO L273 TraceCheckUtils]: 51: Hoare triple {36343#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {36350#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:42:55,173 INFO L273 TraceCheckUtils]: 52: Hoare triple {36350#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {36350#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:42:55,173 INFO L273 TraceCheckUtils]: 53: Hoare triple {36350#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {36357#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:42:55,174 INFO L273 TraceCheckUtils]: 54: Hoare triple {36357#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {36357#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:42:55,175 INFO L273 TraceCheckUtils]: 55: Hoare triple {36357#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {36364#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:42:55,175 INFO L273 TraceCheckUtils]: 56: Hoare triple {36364#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {36364#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:42:55,176 INFO L273 TraceCheckUtils]: 57: Hoare triple {36364#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {36371#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:42:55,177 INFO L273 TraceCheckUtils]: 58: Hoare triple {36371#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {36371#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:42:55,177 INFO L273 TraceCheckUtils]: 59: Hoare triple {36371#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {36378#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:42:55,178 INFO L273 TraceCheckUtils]: 60: Hoare triple {36378#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {36378#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:42:55,179 INFO L273 TraceCheckUtils]: 61: Hoare triple {36378#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {36385#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:42:55,179 INFO L273 TraceCheckUtils]: 62: Hoare triple {36385#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {36385#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:42:55,180 INFO L273 TraceCheckUtils]: 63: Hoare triple {36385#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {36392#(and (= main_i 128) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:42:55,181 INFO L273 TraceCheckUtils]: 64: Hoare triple {36392#(and (= main_i 128) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {36392#(and (= main_i 128) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:42:55,182 INFO L273 TraceCheckUtils]: 65: Hoare triple {36392#(and (= main_i 128) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {36399#(and (= main_i 132) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:42:55,182 INFO L273 TraceCheckUtils]: 66: Hoare triple {36399#(and (= main_i 132) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {36399#(and (= main_i 132) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:42:55,183 INFO L273 TraceCheckUtils]: 67: Hoare triple {36399#(and (= main_i 132) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {36406#(and (= main_i 136) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:42:55,184 INFO L273 TraceCheckUtils]: 68: Hoare triple {36406#(and (= main_i 136) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {36406#(and (= main_i 136) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:42:55,185 INFO L273 TraceCheckUtils]: 69: Hoare triple {36406#(and (= main_i 136) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {36413#(and (= 23 (select main_a (* 4 main_n))) (= main_i 140))} is VALID [2019-01-31 14:42:55,185 INFO L273 TraceCheckUtils]: 70: Hoare triple {36413#(and (= 23 (select main_a (* 4 main_n))) (= main_i 140))} assume i <= n * 4; {36413#(and (= 23 (select main_a (* 4 main_n))) (= main_i 140))} is VALID [2019-01-31 14:42:55,186 INFO L273 TraceCheckUtils]: 71: Hoare triple {36413#(and (= 23 (select main_a (* 4 main_n))) (= main_i 140))} assume a[i] != 23;i := i + 4; {36420#(and (= main_i 144) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:42:55,187 INFO L273 TraceCheckUtils]: 72: Hoare triple {36420#(and (= main_i 144) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {36420#(and (= main_i 144) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:42:55,187 INFO L273 TraceCheckUtils]: 73: Hoare triple {36420#(and (= main_i 144) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {36427#(and (= main_i 148) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:42:55,188 INFO L273 TraceCheckUtils]: 74: Hoare triple {36427#(and (= main_i 148) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {36427#(and (= main_i 148) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:42:55,189 INFO L273 TraceCheckUtils]: 75: Hoare triple {36427#(and (= main_i 148) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {36434#(and (= main_i 152) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:42:55,190 INFO L273 TraceCheckUtils]: 76: Hoare triple {36434#(and (= main_i 152) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {36434#(and (= main_i 152) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:42:55,190 INFO L273 TraceCheckUtils]: 77: Hoare triple {36434#(and (= main_i 152) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {36441#(and (= main_i 156) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:42:55,191 INFO L273 TraceCheckUtils]: 78: Hoare triple {36441#(and (= main_i 156) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {36441#(and (= main_i 156) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:42:55,192 INFO L273 TraceCheckUtils]: 79: Hoare triple {36441#(and (= main_i 156) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {36448#(and (= main_i 160) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:42:55,192 INFO L273 TraceCheckUtils]: 80: Hoare triple {36448#(and (= main_i 160) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {36448#(and (= main_i 160) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:42:55,193 INFO L273 TraceCheckUtils]: 81: Hoare triple {36448#(and (= main_i 160) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {36455#(and (= 23 (select main_a (* 4 main_n))) (= main_i 164))} is VALID [2019-01-31 14:42:55,194 INFO L273 TraceCheckUtils]: 82: Hoare triple {36455#(and (= 23 (select main_a (* 4 main_n))) (= main_i 164))} assume i <= n * 4; {36455#(and (= 23 (select main_a (* 4 main_n))) (= main_i 164))} is VALID [2019-01-31 14:42:55,194 INFO L273 TraceCheckUtils]: 83: Hoare triple {36455#(and (= 23 (select main_a (* 4 main_n))) (= main_i 164))} assume a[i] != 23;i := i + 4; {36462#(and (= main_i 168) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:42:55,195 INFO L273 TraceCheckUtils]: 84: Hoare triple {36462#(and (= main_i 168) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {36462#(and (= main_i 168) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:42:55,196 INFO L273 TraceCheckUtils]: 85: Hoare triple {36462#(and (= main_i 168) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {36469#(and (= main_i 172) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:42:55,196 INFO L273 TraceCheckUtils]: 86: Hoare triple {36469#(and (= main_i 172) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {36469#(and (= main_i 172) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:42:55,197 INFO L273 TraceCheckUtils]: 87: Hoare triple {36469#(and (= main_i 172) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {36476#(and (= main_i 176) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:42:55,198 INFO L273 TraceCheckUtils]: 88: Hoare triple {36476#(and (= main_i 176) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {36476#(and (= main_i 176) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:42:55,198 INFO L273 TraceCheckUtils]: 89: Hoare triple {36476#(and (= main_i 176) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {36483#(and (= main_i 180) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:42:55,199 INFO L273 TraceCheckUtils]: 90: Hoare triple {36483#(and (= main_i 180) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {36483#(and (= main_i 180) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:42:55,200 INFO L273 TraceCheckUtils]: 91: Hoare triple {36483#(and (= main_i 180) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {36490#(and (= main_i 184) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:42:55,200 INFO L273 TraceCheckUtils]: 92: Hoare triple {36490#(and (= main_i 184) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {36490#(and (= main_i 184) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:42:55,201 INFO L273 TraceCheckUtils]: 93: Hoare triple {36490#(and (= main_i 184) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {36497#(and (= main_i 188) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:42:55,202 INFO L273 TraceCheckUtils]: 94: Hoare triple {36497#(and (= main_i 188) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {36497#(and (= main_i 188) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:42:55,202 INFO L273 TraceCheckUtils]: 95: Hoare triple {36497#(and (= main_i 188) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {36504#(and (= main_i 192) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:42:55,203 INFO L273 TraceCheckUtils]: 96: Hoare triple {36504#(and (= main_i 192) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {36504#(and (= main_i 192) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:42:55,204 INFO L273 TraceCheckUtils]: 97: Hoare triple {36504#(and (= main_i 192) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {36511#(and (= main_i 196) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:42:55,205 INFO L273 TraceCheckUtils]: 98: Hoare triple {36511#(and (= main_i 196) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {36511#(and (= main_i 196) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:42:55,205 INFO L273 TraceCheckUtils]: 99: Hoare triple {36511#(and (= main_i 196) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {36518#(and (= main_i 200) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:42:55,206 INFO L273 TraceCheckUtils]: 100: Hoare triple {36518#(and (= main_i 200) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {36518#(and (= main_i 200) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:42:55,207 INFO L273 TraceCheckUtils]: 101: Hoare triple {36518#(and (= main_i 200) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {36525#(and (= main_i 204) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:42:55,207 INFO L273 TraceCheckUtils]: 102: Hoare triple {36525#(and (= main_i 204) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {36525#(and (= main_i 204) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:42:55,208 INFO L273 TraceCheckUtils]: 103: Hoare triple {36525#(and (= main_i 204) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {36532#(and (= main_i 208) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:42:55,209 INFO L273 TraceCheckUtils]: 104: Hoare triple {36532#(and (= main_i 208) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {36536#(and (= main_i 208) (<= main_i (* 4 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:42:55,210 INFO L273 TraceCheckUtils]: 105: Hoare triple {36536#(and (= main_i 208) (<= main_i (* 4 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {36167#(and (<= main_i 212) (<= 53 main_n))} is VALID [2019-01-31 14:42:55,210 INFO L273 TraceCheckUtils]: 106: Hoare triple {36167#(and (<= main_i 212) (<= 53 main_n))} assume !(i <= n * 4); {36112#false} is VALID [2019-01-31 14:42:55,239 INFO L134 CoverageAnalysis]: Checked inductivity of 2756 backedges. 0 proven. 2756 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-31 14:42:55,239 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2019-01-31 14:43:03,658 INFO L273 TraceCheckUtils]: 106: Hoare triple {36543#(<= main_i (* 4 main_n))} assume !(i <= n * 4); {36112#false} is VALID [2019-01-31 14:43:03,659 INFO L273 TraceCheckUtils]: 105: Hoare triple {36547#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} assume a[i] != 23;i := i + 4; {36543#(<= main_i (* 4 main_n))} is VALID [2019-01-31 14:43:03,659 INFO L273 TraceCheckUtils]: 104: Hoare triple {36551#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} assume i <= n * 4; {36547#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} is VALID [2019-01-31 14:43:03,660 INFO L273 TraceCheckUtils]: 103: Hoare triple {36555#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume a[i] != 23;i := i + 4; {36551#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} is VALID [2019-01-31 14:43:03,660 INFO L273 TraceCheckUtils]: 102: Hoare triple {36555#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume i <= n * 4; {36555#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2019-01-31 14:43:03,661 INFO L273 TraceCheckUtils]: 101: Hoare triple {36562#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume a[i] != 23;i := i + 4; {36555#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2019-01-31 14:43:03,661 INFO L273 TraceCheckUtils]: 100: Hoare triple {36562#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume i <= n * 4; {36562#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2019-01-31 14:43:03,662 INFO L273 TraceCheckUtils]: 99: Hoare triple {36569#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume a[i] != 23;i := i + 4; {36562#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2019-01-31 14:43:03,662 INFO L273 TraceCheckUtils]: 98: Hoare triple {36569#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume i <= n * 4; {36569#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2019-01-31 14:43:03,664 INFO L273 TraceCheckUtils]: 97: Hoare triple {36576#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume a[i] != 23;i := i + 4; {36569#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2019-01-31 14:43:03,664 INFO L273 TraceCheckUtils]: 96: Hoare triple {36576#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume i <= n * 4; {36576#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2019-01-31 14:43:03,665 INFO L273 TraceCheckUtils]: 95: Hoare triple {36583#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {36576#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2019-01-31 14:43:03,666 INFO L273 TraceCheckUtils]: 94: Hoare triple {36583#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume i <= n * 4; {36583#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2019-01-31 14:43:03,667 INFO L273 TraceCheckUtils]: 93: Hoare triple {36590#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume a[i] != 23;i := i + 4; {36583#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2019-01-31 14:43:03,667 INFO L273 TraceCheckUtils]: 92: Hoare triple {36590#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume i <= n * 4; {36590#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2019-01-31 14:43:03,669 INFO L273 TraceCheckUtils]: 91: Hoare triple {36597#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {36590#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2019-01-31 14:43:03,669 INFO L273 TraceCheckUtils]: 90: Hoare triple {36597#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume i <= n * 4; {36597#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2019-01-31 14:43:03,670 INFO L273 TraceCheckUtils]: 89: Hoare triple {36604#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {36597#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2019-01-31 14:43:03,671 INFO L273 TraceCheckUtils]: 88: Hoare triple {36604#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume i <= n * 4; {36604#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2019-01-31 14:43:03,672 INFO L273 TraceCheckUtils]: 87: Hoare triple {36611#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {36604#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2019-01-31 14:43:03,672 INFO L273 TraceCheckUtils]: 86: Hoare triple {36611#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume i <= n * 4; {36611#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2019-01-31 14:43:03,674 INFO L273 TraceCheckUtils]: 85: Hoare triple {36618#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} assume a[i] != 23;i := i + 4; {36611#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2019-01-31 14:43:03,674 INFO L273 TraceCheckUtils]: 84: Hoare triple {36618#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} assume i <= n * 4; {36618#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} is VALID [2019-01-31 14:43:03,675 INFO L273 TraceCheckUtils]: 83: Hoare triple {36625#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {36618#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} is VALID [2019-01-31 14:43:03,676 INFO L273 TraceCheckUtils]: 82: Hoare triple {36625#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} assume i <= n * 4; {36625#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} is VALID [2019-01-31 14:43:03,677 INFO L273 TraceCheckUtils]: 81: Hoare triple {36632#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {36625#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} is VALID [2019-01-31 14:43:03,677 INFO L273 TraceCheckUtils]: 80: Hoare triple {36632#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} assume i <= n * 4; {36632#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} is VALID [2019-01-31 14:43:03,679 INFO L273 TraceCheckUtils]: 79: Hoare triple {36639#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} assume a[i] != 23;i := i + 4; {36632#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} is VALID [2019-01-31 14:43:03,679 INFO L273 TraceCheckUtils]: 78: Hoare triple {36639#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} assume i <= n * 4; {36639#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} is VALID [2019-01-31 14:43:03,680 INFO L273 TraceCheckUtils]: 77: Hoare triple {36646#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {36639#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} is VALID [2019-01-31 14:43:03,681 INFO L273 TraceCheckUtils]: 76: Hoare triple {36646#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} assume i <= n * 4; {36646#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} is VALID [2019-01-31 14:43:03,682 INFO L273 TraceCheckUtils]: 75: Hoare triple {36653#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} assume a[i] != 23;i := i + 4; {36646#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} is VALID [2019-01-31 14:43:03,682 INFO L273 TraceCheckUtils]: 74: Hoare triple {36653#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} assume i <= n * 4; {36653#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} is VALID [2019-01-31 14:43:03,684 INFO L273 TraceCheckUtils]: 73: Hoare triple {36660#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} assume a[i] != 23;i := i + 4; {36653#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} is VALID [2019-01-31 14:43:03,684 INFO L273 TraceCheckUtils]: 72: Hoare triple {36660#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} assume i <= n * 4; {36660#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} is VALID [2019-01-31 14:43:03,685 INFO L273 TraceCheckUtils]: 71: Hoare triple {36667#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} assume a[i] != 23;i := i + 4; {36660#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} is VALID [2019-01-31 14:43:03,686 INFO L273 TraceCheckUtils]: 70: Hoare triple {36667#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} assume i <= n * 4; {36667#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} is VALID [2019-01-31 14:43:03,687 INFO L273 TraceCheckUtils]: 69: Hoare triple {36674#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} assume a[i] != 23;i := i + 4; {36667#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} is VALID [2019-01-31 14:43:03,687 INFO L273 TraceCheckUtils]: 68: Hoare triple {36674#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} assume i <= n * 4; {36674#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} is VALID [2019-01-31 14:43:03,689 INFO L273 TraceCheckUtils]: 67: Hoare triple {36681#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} assume a[i] != 23;i := i + 4; {36674#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} is VALID [2019-01-31 14:43:03,689 INFO L273 TraceCheckUtils]: 66: Hoare triple {36681#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} assume i <= n * 4; {36681#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} is VALID [2019-01-31 14:43:03,690 INFO L273 TraceCheckUtils]: 65: Hoare triple {36688#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} assume a[i] != 23;i := i + 4; {36681#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} is VALID [2019-01-31 14:43:03,691 INFO L273 TraceCheckUtils]: 64: Hoare triple {36688#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} assume i <= n * 4; {36688#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} is VALID [2019-01-31 14:43:03,692 INFO L273 TraceCheckUtils]: 63: Hoare triple {36695#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {36688#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} is VALID [2019-01-31 14:43:03,692 INFO L273 TraceCheckUtils]: 62: Hoare triple {36695#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} assume i <= n * 4; {36695#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} is VALID [2019-01-31 14:43:03,694 INFO L273 TraceCheckUtils]: 61: Hoare triple {36702#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {36695#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} is VALID [2019-01-31 14:43:03,694 INFO L273 TraceCheckUtils]: 60: Hoare triple {36702#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} assume i <= n * 4; {36702#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} is VALID [2019-01-31 14:43:03,695 INFO L273 TraceCheckUtils]: 59: Hoare triple {36709#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {36702#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} is VALID [2019-01-31 14:43:03,696 INFO L273 TraceCheckUtils]: 58: Hoare triple {36709#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} assume i <= n * 4; {36709#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} is VALID [2019-01-31 14:43:03,697 INFO L273 TraceCheckUtils]: 57: Hoare triple {36716#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} assume a[i] != 23;i := i + 4; {36709#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} is VALID [2019-01-31 14:43:03,697 INFO L273 TraceCheckUtils]: 56: Hoare triple {36716#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} assume i <= n * 4; {36716#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} is VALID [2019-01-31 14:43:03,699 INFO L273 TraceCheckUtils]: 55: Hoare triple {36723#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {36716#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} is VALID [2019-01-31 14:43:03,699 INFO L273 TraceCheckUtils]: 54: Hoare triple {36723#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} assume i <= n * 4; {36723#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} is VALID [2019-01-31 14:43:03,700 INFO L273 TraceCheckUtils]: 53: Hoare triple {36730#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} assume a[i] != 23;i := i + 4; {36723#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} is VALID [2019-01-31 14:43:03,701 INFO L273 TraceCheckUtils]: 52: Hoare triple {36730#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} assume i <= n * 4; {36730#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} is VALID [2019-01-31 14:43:03,702 INFO L273 TraceCheckUtils]: 51: Hoare triple {36737#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} assume a[i] != 23;i := i + 4; {36730#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} is VALID [2019-01-31 14:43:03,703 INFO L273 TraceCheckUtils]: 50: Hoare triple {36737#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} assume i <= n * 4; {36737#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} is VALID [2019-01-31 14:43:03,704 INFO L273 TraceCheckUtils]: 49: Hoare triple {36744#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} assume a[i] != 23;i := i + 4; {36737#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} is VALID [2019-01-31 14:43:03,704 INFO L273 TraceCheckUtils]: 48: Hoare triple {36744#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} assume i <= n * 4; {36744#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} is VALID [2019-01-31 14:43:03,705 INFO L273 TraceCheckUtils]: 47: Hoare triple {36751#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {36744#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} is VALID [2019-01-31 14:43:03,706 INFO L273 TraceCheckUtils]: 46: Hoare triple {36751#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} assume i <= n * 4; {36751#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} is VALID [2019-01-31 14:43:03,707 INFO L273 TraceCheckUtils]: 45: Hoare triple {36758#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {36751#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} is VALID [2019-01-31 14:43:03,708 INFO L273 TraceCheckUtils]: 44: Hoare triple {36758#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} assume i <= n * 4; {36758#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} is VALID [2019-01-31 14:43:03,709 INFO L273 TraceCheckUtils]: 43: Hoare triple {36765#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} assume a[i] != 23;i := i + 4; {36758#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} is VALID [2019-01-31 14:43:03,709 INFO L273 TraceCheckUtils]: 42: Hoare triple {36765#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} assume i <= n * 4; {36765#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} is VALID [2019-01-31 14:43:03,710 INFO L273 TraceCheckUtils]: 41: Hoare triple {36772#(or (< (* 4 main_n) (+ main_i 128)) (= (select main_a (+ main_i 128)) 23) (< (+ main_i 131) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {36765#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} is VALID [2019-01-31 14:43:03,711 INFO L273 TraceCheckUtils]: 40: Hoare triple {36772#(or (< (* 4 main_n) (+ main_i 128)) (= (select main_a (+ main_i 128)) 23) (< (+ main_i 131) (* 4 main_n)))} assume i <= n * 4; {36772#(or (< (* 4 main_n) (+ main_i 128)) (= (select main_a (+ main_i 128)) 23) (< (+ main_i 131) (* 4 main_n)))} is VALID [2019-01-31 14:43:03,712 INFO L273 TraceCheckUtils]: 39: Hoare triple {36779#(or (< (* 4 main_n) (+ main_i 132)) (< (+ main_i 135) (* 4 main_n)) (= (select main_a (+ main_i 132)) 23))} assume a[i] != 23;i := i + 4; {36772#(or (< (* 4 main_n) (+ main_i 128)) (= (select main_a (+ main_i 128)) 23) (< (+ main_i 131) (* 4 main_n)))} is VALID [2019-01-31 14:43:03,713 INFO L273 TraceCheckUtils]: 38: Hoare triple {36779#(or (< (* 4 main_n) (+ main_i 132)) (< (+ main_i 135) (* 4 main_n)) (= (select main_a (+ main_i 132)) 23))} assume i <= n * 4; {36779#(or (< (* 4 main_n) (+ main_i 132)) (< (+ main_i 135) (* 4 main_n)) (= (select main_a (+ main_i 132)) 23))} is VALID [2019-01-31 14:43:03,714 INFO L273 TraceCheckUtils]: 37: Hoare triple {36786#(or (< (+ main_i 139) (* 4 main_n)) (= (select main_a (+ main_i 136)) 23) (< (* 4 main_n) (+ main_i 136)))} assume a[i] != 23;i := i + 4; {36779#(or (< (* 4 main_n) (+ main_i 132)) (< (+ main_i 135) (* 4 main_n)) (= (select main_a (+ main_i 132)) 23))} is VALID [2019-01-31 14:43:03,714 INFO L273 TraceCheckUtils]: 36: Hoare triple {36786#(or (< (+ main_i 139) (* 4 main_n)) (= (select main_a (+ main_i 136)) 23) (< (* 4 main_n) (+ main_i 136)))} assume i <= n * 4; {36786#(or (< (+ main_i 139) (* 4 main_n)) (= (select main_a (+ main_i 136)) 23) (< (* 4 main_n) (+ main_i 136)))} is VALID [2019-01-31 14:43:03,715 INFO L273 TraceCheckUtils]: 35: Hoare triple {36793#(or (< (* 4 main_n) (+ main_i 140)) (< (+ main_i 143) (* 4 main_n)) (= (select main_a (+ main_i 140)) 23))} assume a[i] != 23;i := i + 4; {36786#(or (< (+ main_i 139) (* 4 main_n)) (= (select main_a (+ main_i 136)) 23) (< (* 4 main_n) (+ main_i 136)))} is VALID [2019-01-31 14:43:03,716 INFO L273 TraceCheckUtils]: 34: Hoare triple {36793#(or (< (* 4 main_n) (+ main_i 140)) (< (+ main_i 143) (* 4 main_n)) (= (select main_a (+ main_i 140)) 23))} assume i <= n * 4; {36793#(or (< (* 4 main_n) (+ main_i 140)) (< (+ main_i 143) (* 4 main_n)) (= (select main_a (+ main_i 140)) 23))} is VALID [2019-01-31 14:43:03,717 INFO L273 TraceCheckUtils]: 33: Hoare triple {36800#(or (= (select main_a (+ main_i 144)) 23) (< (+ main_i 147) (* 4 main_n)) (< (* 4 main_n) (+ main_i 144)))} assume a[i] != 23;i := i + 4; {36793#(or (< (* 4 main_n) (+ main_i 140)) (< (+ main_i 143) (* 4 main_n)) (= (select main_a (+ main_i 140)) 23))} is VALID [2019-01-31 14:43:03,718 INFO L273 TraceCheckUtils]: 32: Hoare triple {36800#(or (= (select main_a (+ main_i 144)) 23) (< (+ main_i 147) (* 4 main_n)) (< (* 4 main_n) (+ main_i 144)))} assume i <= n * 4; {36800#(or (= (select main_a (+ main_i 144)) 23) (< (+ main_i 147) (* 4 main_n)) (< (* 4 main_n) (+ main_i 144)))} is VALID [2019-01-31 14:43:03,719 INFO L273 TraceCheckUtils]: 31: Hoare triple {36807#(or (< (+ main_i 151) (* 4 main_n)) (< (* 4 main_n) (+ main_i 148)) (= (select main_a (+ main_i 148)) 23))} assume a[i] != 23;i := i + 4; {36800#(or (= (select main_a (+ main_i 144)) 23) (< (+ main_i 147) (* 4 main_n)) (< (* 4 main_n) (+ main_i 144)))} is VALID [2019-01-31 14:43:03,719 INFO L273 TraceCheckUtils]: 30: Hoare triple {36807#(or (< (+ main_i 151) (* 4 main_n)) (< (* 4 main_n) (+ main_i 148)) (= (select main_a (+ main_i 148)) 23))} assume i <= n * 4; {36807#(or (< (+ main_i 151) (* 4 main_n)) (< (* 4 main_n) (+ main_i 148)) (= (select main_a (+ main_i 148)) 23))} is VALID [2019-01-31 14:43:03,720 INFO L273 TraceCheckUtils]: 29: Hoare triple {36814#(or (= 23 (select main_a (+ main_i 152))) (< (+ main_i 155) (* 4 main_n)) (< (* 4 main_n) (+ main_i 152)))} assume a[i] != 23;i := i + 4; {36807#(or (< (+ main_i 151) (* 4 main_n)) (< (* 4 main_n) (+ main_i 148)) (= (select main_a (+ main_i 148)) 23))} is VALID [2019-01-31 14:43:03,721 INFO L273 TraceCheckUtils]: 28: Hoare triple {36814#(or (= 23 (select main_a (+ main_i 152))) (< (+ main_i 155) (* 4 main_n)) (< (* 4 main_n) (+ main_i 152)))} assume i <= n * 4; {36814#(or (= 23 (select main_a (+ main_i 152))) (< (+ main_i 155) (* 4 main_n)) (< (* 4 main_n) (+ main_i 152)))} is VALID [2019-01-31 14:43:03,722 INFO L273 TraceCheckUtils]: 27: Hoare triple {36821#(or (< (+ main_i 159) (* 4 main_n)) (= (select main_a (+ main_i 156)) 23) (< (* 4 main_n) (+ main_i 156)))} assume a[i] != 23;i := i + 4; {36814#(or (= 23 (select main_a (+ main_i 152))) (< (+ main_i 155) (* 4 main_n)) (< (* 4 main_n) (+ main_i 152)))} is VALID [2019-01-31 14:43:03,723 INFO L273 TraceCheckUtils]: 26: Hoare triple {36821#(or (< (+ main_i 159) (* 4 main_n)) (= (select main_a (+ main_i 156)) 23) (< (* 4 main_n) (+ main_i 156)))} assume i <= n * 4; {36821#(or (< (+ main_i 159) (* 4 main_n)) (= (select main_a (+ main_i 156)) 23) (< (* 4 main_n) (+ main_i 156)))} is VALID [2019-01-31 14:43:03,724 INFO L273 TraceCheckUtils]: 25: Hoare triple {36828#(or (< (+ main_i 163) (* 4 main_n)) (= (select main_a (+ main_i 160)) 23) (< (* 4 main_n) (+ main_i 160)))} assume a[i] != 23;i := i + 4; {36821#(or (< (+ main_i 159) (* 4 main_n)) (= (select main_a (+ main_i 156)) 23) (< (* 4 main_n) (+ main_i 156)))} is VALID [2019-01-31 14:43:03,724 INFO L273 TraceCheckUtils]: 24: Hoare triple {36828#(or (< (+ main_i 163) (* 4 main_n)) (= (select main_a (+ main_i 160)) 23) (< (* 4 main_n) (+ main_i 160)))} assume i <= n * 4; {36828#(or (< (+ main_i 163) (* 4 main_n)) (= (select main_a (+ main_i 160)) 23) (< (* 4 main_n) (+ main_i 160)))} is VALID [2019-01-31 14:43:03,725 INFO L273 TraceCheckUtils]: 23: Hoare triple {36835#(or (< (* 4 main_n) (+ main_i 164)) (< (+ main_i 167) (* 4 main_n)) (= (select main_a (+ main_i 164)) 23))} assume a[i] != 23;i := i + 4; {36828#(or (< (+ main_i 163) (* 4 main_n)) (= (select main_a (+ main_i 160)) 23) (< (* 4 main_n) (+ main_i 160)))} is VALID [2019-01-31 14:43:03,726 INFO L273 TraceCheckUtils]: 22: Hoare triple {36835#(or (< (* 4 main_n) (+ main_i 164)) (< (+ main_i 167) (* 4 main_n)) (= (select main_a (+ main_i 164)) 23))} assume i <= n * 4; {36835#(or (< (* 4 main_n) (+ main_i 164)) (< (+ main_i 167) (* 4 main_n)) (= (select main_a (+ main_i 164)) 23))} is VALID [2019-01-31 14:43:03,727 INFO L273 TraceCheckUtils]: 21: Hoare triple {36842#(or (= (select main_a (+ main_i 168)) 23) (< (* 4 main_n) (+ main_i 168)) (< (+ main_i 171) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {36835#(or (< (* 4 main_n) (+ main_i 164)) (< (+ main_i 167) (* 4 main_n)) (= (select main_a (+ main_i 164)) 23))} is VALID [2019-01-31 14:43:03,728 INFO L273 TraceCheckUtils]: 20: Hoare triple {36842#(or (= (select main_a (+ main_i 168)) 23) (< (* 4 main_n) (+ main_i 168)) (< (+ main_i 171) (* 4 main_n)))} assume i <= n * 4; {36842#(or (= (select main_a (+ main_i 168)) 23) (< (* 4 main_n) (+ main_i 168)) (< (+ main_i 171) (* 4 main_n)))} is VALID [2019-01-31 14:43:03,729 INFO L273 TraceCheckUtils]: 19: Hoare triple {36849#(or (< (* 4 main_n) (+ main_i 172)) (= (select main_a (+ main_i 172)) 23) (< (+ main_i 175) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {36842#(or (= (select main_a (+ main_i 168)) 23) (< (* 4 main_n) (+ main_i 168)) (< (+ main_i 171) (* 4 main_n)))} is VALID [2019-01-31 14:43:03,729 INFO L273 TraceCheckUtils]: 18: Hoare triple {36849#(or (< (* 4 main_n) (+ main_i 172)) (= (select main_a (+ main_i 172)) 23) (< (+ main_i 175) (* 4 main_n)))} assume i <= n * 4; {36849#(or (< (* 4 main_n) (+ main_i 172)) (= (select main_a (+ main_i 172)) 23) (< (+ main_i 175) (* 4 main_n)))} is VALID [2019-01-31 14:43:03,730 INFO L273 TraceCheckUtils]: 17: Hoare triple {36856#(or (= (select main_a (+ main_i 176)) 23) (< (+ main_i 179) (* 4 main_n)) (< (* 4 main_n) (+ main_i 176)))} assume a[i] != 23;i := i + 4; {36849#(or (< (* 4 main_n) (+ main_i 172)) (= (select main_a (+ main_i 172)) 23) (< (+ main_i 175) (* 4 main_n)))} is VALID [2019-01-31 14:43:03,731 INFO L273 TraceCheckUtils]: 16: Hoare triple {36856#(or (= (select main_a (+ main_i 176)) 23) (< (+ main_i 179) (* 4 main_n)) (< (* 4 main_n) (+ main_i 176)))} assume i <= n * 4; {36856#(or (= (select main_a (+ main_i 176)) 23) (< (+ main_i 179) (* 4 main_n)) (< (* 4 main_n) (+ main_i 176)))} is VALID [2019-01-31 14:43:03,732 INFO L273 TraceCheckUtils]: 15: Hoare triple {36863#(or (< (+ main_i 183) (* 4 main_n)) (= (select main_a (+ main_i 180)) 23) (< (* 4 main_n) (+ main_i 180)))} assume a[i] != 23;i := i + 4; {36856#(or (= (select main_a (+ main_i 176)) 23) (< (+ main_i 179) (* 4 main_n)) (< (* 4 main_n) (+ main_i 176)))} is VALID [2019-01-31 14:43:03,733 INFO L273 TraceCheckUtils]: 14: Hoare triple {36863#(or (< (+ main_i 183) (* 4 main_n)) (= (select main_a (+ main_i 180)) 23) (< (* 4 main_n) (+ main_i 180)))} assume i <= n * 4; {36863#(or (< (+ main_i 183) (* 4 main_n)) (= (select main_a (+ main_i 180)) 23) (< (* 4 main_n) (+ main_i 180)))} is VALID [2019-01-31 14:43:03,734 INFO L273 TraceCheckUtils]: 13: Hoare triple {36870#(or (= (select main_a (+ main_i 184)) 23) (< (+ main_i 187) (* 4 main_n)) (< (* 4 main_n) (+ main_i 184)))} assume a[i] != 23;i := i + 4; {36863#(or (< (+ main_i 183) (* 4 main_n)) (= (select main_a (+ main_i 180)) 23) (< (* 4 main_n) (+ main_i 180)))} is VALID [2019-01-31 14:43:03,734 INFO L273 TraceCheckUtils]: 12: Hoare triple {36870#(or (= (select main_a (+ main_i 184)) 23) (< (+ main_i 187) (* 4 main_n)) (< (* 4 main_n) (+ main_i 184)))} assume i <= n * 4; {36870#(or (= (select main_a (+ main_i 184)) 23) (< (+ main_i 187) (* 4 main_n)) (< (* 4 main_n) (+ main_i 184)))} is VALID [2019-01-31 14:43:03,735 INFO L273 TraceCheckUtils]: 11: Hoare triple {36877#(or (< (+ main_i 191) (* 4 main_n)) (< (* 4 main_n) (+ main_i 188)) (= 23 (select main_a (+ main_i 188))))} assume a[i] != 23;i := i + 4; {36870#(or (= (select main_a (+ main_i 184)) 23) (< (+ main_i 187) (* 4 main_n)) (< (* 4 main_n) (+ main_i 184)))} is VALID [2019-01-31 14:43:03,736 INFO L273 TraceCheckUtils]: 10: Hoare triple {36877#(or (< (+ main_i 191) (* 4 main_n)) (< (* 4 main_n) (+ main_i 188)) (= 23 (select main_a (+ main_i 188))))} assume i <= n * 4; {36877#(or (< (+ main_i 191) (* 4 main_n)) (< (* 4 main_n) (+ main_i 188)) (= 23 (select main_a (+ main_i 188))))} is VALID [2019-01-31 14:43:03,737 INFO L273 TraceCheckUtils]: 9: Hoare triple {36884#(or (= 23 (select main_a (+ main_i 192))) (< (+ main_i 195) (* 4 main_n)) (< (* 4 main_n) (+ main_i 192)))} assume a[i] != 23;i := i + 4; {36877#(or (< (+ main_i 191) (* 4 main_n)) (< (* 4 main_n) (+ main_i 188)) (= 23 (select main_a (+ main_i 188))))} is VALID [2019-01-31 14:43:03,738 INFO L273 TraceCheckUtils]: 8: Hoare triple {36884#(or (= 23 (select main_a (+ main_i 192))) (< (+ main_i 195) (* 4 main_n)) (< (* 4 main_n) (+ main_i 192)))} assume i <= n * 4; {36884#(or (= 23 (select main_a (+ main_i 192))) (< (+ main_i 195) (* 4 main_n)) (< (* 4 main_n) (+ main_i 192)))} is VALID [2019-01-31 14:43:03,739 INFO L273 TraceCheckUtils]: 7: Hoare triple {36891#(or (= 23 (select main_a (+ main_i 196))) (< (+ main_i 199) (* 4 main_n)) (< (* 4 main_n) (+ main_i 196)))} assume a[i] != 23;i := i + 4; {36884#(or (= 23 (select main_a (+ main_i 192))) (< (+ main_i 195) (* 4 main_n)) (< (* 4 main_n) (+ main_i 192)))} is VALID [2019-01-31 14:43:03,739 INFO L273 TraceCheckUtils]: 6: Hoare triple {36891#(or (= 23 (select main_a (+ main_i 196))) (< (+ main_i 199) (* 4 main_n)) (< (* 4 main_n) (+ main_i 196)))} assume i <= n * 4; {36891#(or (= 23 (select main_a (+ main_i 196))) (< (+ main_i 199) (* 4 main_n)) (< (* 4 main_n) (+ main_i 196)))} is VALID [2019-01-31 14:43:03,740 INFO L273 TraceCheckUtils]: 5: Hoare triple {36898#(or (< (* 4 main_n) (+ main_i 200)) (< (+ main_i 203) (* 4 main_n)) (= 23 (select main_a (+ main_i 200))))} assume a[i] != 23;i := i + 4; {36891#(or (= 23 (select main_a (+ main_i 196))) (< (+ main_i 199) (* 4 main_n)) (< (* 4 main_n) (+ main_i 196)))} is VALID [2019-01-31 14:43:03,741 INFO L273 TraceCheckUtils]: 4: Hoare triple {36898#(or (< (* 4 main_n) (+ main_i 200)) (< (+ main_i 203) (* 4 main_n)) (= 23 (select main_a (+ main_i 200))))} assume i <= n * 4; {36898#(or (< (* 4 main_n) (+ main_i 200)) (< (+ main_i 203) (* 4 main_n)) (= 23 (select main_a (+ main_i 200))))} is VALID [2019-01-31 14:43:03,742 INFO L273 TraceCheckUtils]: 3: Hoare triple {36905#(or (< (+ main_i 207) (* 4 main_n)) (< (* 4 main_n) (+ main_i 204)) (= (select main_a (+ main_i 204)) 23))} assume a[i] != 23;i := i + 4; {36898#(or (< (* 4 main_n) (+ main_i 200)) (< (+ main_i 203) (* 4 main_n)) (= 23 (select main_a (+ main_i 200))))} is VALID [2019-01-31 14:43:03,743 INFO L273 TraceCheckUtils]: 2: Hoare triple {36905#(or (< (+ main_i 207) (* 4 main_n)) (< (* 4 main_n) (+ main_i 204)) (= (select main_a (+ main_i 204)) 23))} assume i <= n * 4; {36905#(or (< (+ main_i 207) (* 4 main_n)) (< (* 4 main_n) (+ main_i 204)) (= (select main_a (+ main_i 204)) 23))} is VALID [2019-01-31 14:43:03,744 INFO L273 TraceCheckUtils]: 1: Hoare triple {36912#(or (= (select main_a (+ main_i 208)) 23) (< (+ main_i 211) (* 4 main_n)) (< (* 4 main_n) (+ main_i 208)))} assume a[i] != 23;i := i + 4; {36905#(or (< (+ main_i 207) (* 4 main_n)) (< (* 4 main_n) (+ main_i 204)) (= (select main_a (+ main_i 204)) 23))} is VALID [2019-01-31 14:43:03,745 INFO L273 TraceCheckUtils]: 0: Hoare triple {36111#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {36912#(or (= (select main_a (+ main_i 208)) 23) (< (+ main_i 211) (* 4 main_n)) (< (* 4 main_n) (+ main_i 208)))} is VALID [2019-01-31 14:43:03,790 INFO L134 CoverageAnalysis]: Checked inductivity of 2756 backedges. 0 proven. 2756 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-31 14:43:03,810 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-01-31 14:43:03,811 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [55, 55, 55] total 164 [2019-01-31 14:43:03,811 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-01-31 14:43:03,811 INFO L78 Accepts]: Start accepts. Automaton has 111 states. Word has length 107 [2019-01-31 14:43:03,811 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-01-31 14:43:03,811 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 111 states. [2019-01-31 14:43:04,086 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 213 edges. 213 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-01-31 14:43:04,086 INFO L459 AbstractCegarLoop]: Interpolant automaton has 111 states [2019-01-31 14:43:04,087 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 111 interpolants. [2019-01-31 14:43:04,088 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3308, Invalid=24082, Unknown=0, NotChecked=0, Total=27390 [2019-01-31 14:43:04,088 INFO L87 Difference]: Start difference. First operand 108 states and 108 transitions. Second operand 111 states. [2019-01-31 14:43:19,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 14:43:19,041 INFO L93 Difference]: Finished difference Result 112 states and 112 transitions. [2019-01-31 14:43:19,041 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2019-01-31 14:43:19,041 INFO L78 Accepts]: Start accepts. Automaton has 111 states. Word has length 107 [2019-01-31 14:43:19,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-31 14:43:19,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 111 states. [2019-01-31 14:43:19,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 112 transitions. [2019-01-31 14:43:19,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 111 states. [2019-01-31 14:43:19,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 112 transitions. [2019-01-31 14:43:19,044 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 57 states and 112 transitions. [2019-01-31 14:43:19,164 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 112 edges. 112 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-01-31 14:43:19,166 INFO L225 Difference]: With dead ends: 112 [2019-01-31 14:43:19,167 INFO L226 Difference]: Without dead ends: 111 [2019-01-31 14:43:19,168 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 267 GetRequests, 102 SyntacticMatches, 1 SemanticMatches, 164 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6156 ImplicationChecksByTransitivity, 15.6s TimeCoverageRelationStatistics Valid=3308, Invalid=24082, Unknown=0, NotChecked=0, Total=27390 [2019-01-31 14:43:19,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2019-01-31 14:43:19,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 110. [2019-01-31 14:43:19,270 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-01-31 14:43:19,270 INFO L82 GeneralOperation]: Start isEquivalent. First operand 111 states. Second operand 110 states. [2019-01-31 14:43:19,271 INFO L74 IsIncluded]: Start isIncluded. First operand 111 states. Second operand 110 states. [2019-01-31 14:43:19,271 INFO L87 Difference]: Start difference. First operand 111 states. Second operand 110 states. [2019-01-31 14:43:19,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 14:43:19,273 INFO L93 Difference]: Finished difference Result 111 states and 111 transitions. [2019-01-31 14:43:19,273 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 111 transitions. [2019-01-31 14:43:19,273 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-31 14:43:19,273 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-01-31 14:43:19,273 INFO L74 IsIncluded]: Start isIncluded. First operand 110 states. Second operand 111 states. [2019-01-31 14:43:19,273 INFO L87 Difference]: Start difference. First operand 110 states. Second operand 111 states. [2019-01-31 14:43:19,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 14:43:19,275 INFO L93 Difference]: Finished difference Result 111 states and 111 transitions. [2019-01-31 14:43:19,275 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 111 transitions. [2019-01-31 14:43:19,275 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-31 14:43:19,275 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-01-31 14:43:19,275 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-01-31 14:43:19,275 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-01-31 14:43:19,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 110 states. [2019-01-31 14:43:19,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 110 transitions. [2019-01-31 14:43:19,277 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 110 transitions. Word has length 107 [2019-01-31 14:43:19,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-31 14:43:19,277 INFO L480 AbstractCegarLoop]: Abstraction has 110 states and 110 transitions. [2019-01-31 14:43:19,277 INFO L481 AbstractCegarLoop]: Interpolant automaton has 111 states. [2019-01-31 14:43:19,277 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 110 transitions. [2019-01-31 14:43:19,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2019-01-31 14:43:19,277 INFO L394 BasicCegarLoop]: Found error trace [2019-01-31 14:43:19,277 INFO L402 BasicCegarLoop]: trace histogram [54, 53, 1, 1] [2019-01-31 14:43:19,278 INFO L423 AbstractCegarLoop]: === Iteration 54 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-01-31 14:43:19,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-31 14:43:19,278 INFO L82 PathProgramCache]: Analyzing trace with hash -1628127862, now seen corresponding path program 53 times [2019-01-31 14:43:19,278 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-01-31 14:43:19,278 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-31 14:43:19,279 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-31 14:43:19,279 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-31 14:43:19,279 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-01-31 14:43:19,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-31 14:43:22,760 INFO L273 TraceCheckUtils]: 0: Hoare triple {37468#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {37470#(and (or (<= main_n 53) (<= main_i 0)) (or (and (<= 0 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)))} is VALID [2019-01-31 14:43:22,761 INFO L273 TraceCheckUtils]: 1: Hoare triple {37470#(and (or (<= main_n 53) (<= main_i 0)) (or (and (<= 0 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)))} assume a[i] != 23;i := i + 4; {37471#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i)) (< 53 main_n)) (or (<= main_n 53) (<= main_i 4)))} is VALID [2019-01-31 14:43:22,762 INFO L273 TraceCheckUtils]: 2: Hoare triple {37471#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i)) (< 53 main_n)) (or (<= main_n 53) (<= main_i 4)))} assume i <= n * 4; {37471#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i)) (< 53 main_n)) (or (<= main_n 53) (<= main_i 4)))} is VALID [2019-01-31 14:43:22,763 INFO L273 TraceCheckUtils]: 3: Hoare triple {37471#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i)) (< 53 main_n)) (or (<= main_n 53) (<= main_i 4)))} assume a[i] != 23;i := i + 4; {37472#(and (or (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)) (or (<= main_i 8) (<= main_n 53)))} is VALID [2019-01-31 14:43:22,764 INFO L273 TraceCheckUtils]: 4: Hoare triple {37472#(and (or (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)) (or (<= main_i 8) (<= main_n 53)))} assume i <= n * 4; {37472#(and (or (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)) (or (<= main_i 8) (<= main_n 53)))} is VALID [2019-01-31 14:43:22,765 INFO L273 TraceCheckUtils]: 5: Hoare triple {37472#(and (or (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)) (or (<= main_i 8) (<= main_n 53)))} assume a[i] != 23;i := i + 4; {37473#(and (or (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)) (or (<= main_n 53) (<= main_i 12)))} is VALID [2019-01-31 14:43:22,766 INFO L273 TraceCheckUtils]: 6: Hoare triple {37473#(and (or (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)) (or (<= main_n 53) (<= main_i 12)))} assume i <= n * 4; {37473#(and (or (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)) (or (<= main_n 53) (<= main_i 12)))} is VALID [2019-01-31 14:43:22,767 INFO L273 TraceCheckUtils]: 7: Hoare triple {37473#(and (or (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)) (or (<= main_n 53) (<= main_i 12)))} assume a[i] != 23;i := i + 4; {37474#(and (or (<= main_n 53) (<= main_i 16)) (or (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)))} is VALID [2019-01-31 14:43:22,768 INFO L273 TraceCheckUtils]: 8: Hoare triple {37474#(and (or (<= main_n 53) (<= main_i 16)) (or (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)))} assume i <= n * 4; {37474#(and (or (<= main_n 53) (<= main_i 16)) (or (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)))} is VALID [2019-01-31 14:43:22,769 INFO L273 TraceCheckUtils]: 9: Hoare triple {37474#(and (or (<= main_n 53) (<= main_i 16)) (or (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)))} assume a[i] != 23;i := i + 4; {37475#(and (or (<= main_n 53) (<= main_i 20)) (or (< 53 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:43:22,770 INFO L273 TraceCheckUtils]: 10: Hoare triple {37475#(and (or (<= main_n 53) (<= main_i 20)) (or (< 53 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {37475#(and (or (<= main_n 53) (<= main_i 20)) (or (< 53 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:43:22,771 INFO L273 TraceCheckUtils]: 11: Hoare triple {37475#(and (or (<= main_n 53) (<= main_i 20)) (or (< 53 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {37476#(and (or (<= main_n 53) (<= main_i 24)) (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)))} is VALID [2019-01-31 14:43:22,772 INFO L273 TraceCheckUtils]: 12: Hoare triple {37476#(and (or (<= main_n 53) (<= main_i 24)) (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)))} assume i <= n * 4; {37476#(and (or (<= main_n 53) (<= main_i 24)) (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)))} is VALID [2019-01-31 14:43:22,773 INFO L273 TraceCheckUtils]: 13: Hoare triple {37476#(and (or (<= main_n 53) (<= main_i 24)) (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)))} assume a[i] != 23;i := i + 4; {37477#(and (or (<= main_n 53) (<= main_i 28)) (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)))} is VALID [2019-01-31 14:43:22,774 INFO L273 TraceCheckUtils]: 14: Hoare triple {37477#(and (or (<= main_n 53) (<= main_i 28)) (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)))} assume i <= n * 4; {37477#(and (or (<= main_n 53) (<= main_i 28)) (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)))} is VALID [2019-01-31 14:43:22,775 INFO L273 TraceCheckUtils]: 15: Hoare triple {37477#(and (or (<= main_n 53) (<= main_i 28)) (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)))} assume a[i] != 23;i := i + 4; {37478#(and (or (<= main_i 32) (<= main_n 53)) (or (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)))} is VALID [2019-01-31 14:43:22,775 INFO L273 TraceCheckUtils]: 16: Hoare triple {37478#(and (or (<= main_i 32) (<= main_n 53)) (or (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)))} assume i <= n * 4; {37478#(and (or (<= main_i 32) (<= main_n 53)) (or (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)))} is VALID [2019-01-31 14:43:22,777 INFO L273 TraceCheckUtils]: 17: Hoare triple {37478#(and (or (<= main_i 32) (<= main_n 53)) (or (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)))} assume a[i] != 23;i := i + 4; {37479#(and (or (<= main_i 36) (<= main_n 53)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i)) (< 53 main_n)))} is VALID [2019-01-31 14:43:22,777 INFO L273 TraceCheckUtils]: 18: Hoare triple {37479#(and (or (<= main_i 36) (<= main_n 53)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i)) (< 53 main_n)))} assume i <= n * 4; {37479#(and (or (<= main_i 36) (<= main_n 53)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i)) (< 53 main_n)))} is VALID [2019-01-31 14:43:22,778 INFO L273 TraceCheckUtils]: 19: Hoare triple {37479#(and (or (<= main_i 36) (<= main_n 53)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i)) (< 53 main_n)))} assume a[i] != 23;i := i + 4; {37480#(and (or (<= main_i 40) (<= main_n 53)) (or (< 53 main_n) (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:43:22,779 INFO L273 TraceCheckUtils]: 20: Hoare triple {37480#(and (or (<= main_i 40) (<= main_n 53)) (or (< 53 main_n) (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {37480#(and (or (<= main_i 40) (<= main_n 53)) (or (< 53 main_n) (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:43:22,780 INFO L273 TraceCheckUtils]: 21: Hoare triple {37480#(and (or (<= main_i 40) (<= main_n 53)) (or (< 53 main_n) (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {37481#(and (or (<= main_n 53) (<= main_i 44)) (or (< 53 main_n) (and (<= 44 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:43:22,781 INFO L273 TraceCheckUtils]: 22: Hoare triple {37481#(and (or (<= main_n 53) (<= main_i 44)) (or (< 53 main_n) (and (<= 44 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {37481#(and (or (<= main_n 53) (<= main_i 44)) (or (< 53 main_n) (and (<= 44 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:43:22,782 INFO L273 TraceCheckUtils]: 23: Hoare triple {37481#(and (or (<= main_n 53) (<= main_i 44)) (or (< 53 main_n) (and (<= 44 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {37482#(and (or (and (<= 48 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)) (or (<= main_n 53) (<= main_i 48)))} is VALID [2019-01-31 14:43:22,783 INFO L273 TraceCheckUtils]: 24: Hoare triple {37482#(and (or (and (<= 48 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)) (or (<= main_n 53) (<= main_i 48)))} assume i <= n * 4; {37482#(and (or (and (<= 48 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)) (or (<= main_n 53) (<= main_i 48)))} is VALID [2019-01-31 14:43:22,784 INFO L273 TraceCheckUtils]: 25: Hoare triple {37482#(and (or (and (<= 48 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)) (or (<= main_n 53) (<= main_i 48)))} assume a[i] != 23;i := i + 4; {37483#(and (or (and (<= 52 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)) (or (<= main_i 52) (<= main_n 53)))} is VALID [2019-01-31 14:43:22,785 INFO L273 TraceCheckUtils]: 26: Hoare triple {37483#(and (or (and (<= 52 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)) (or (<= main_i 52) (<= main_n 53)))} assume i <= n * 4; {37483#(and (or (and (<= 52 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)) (or (<= main_i 52) (<= main_n 53)))} is VALID [2019-01-31 14:43:22,786 INFO L273 TraceCheckUtils]: 27: Hoare triple {37483#(and (or (and (<= 52 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)) (or (<= main_i 52) (<= main_n 53)))} assume a[i] != 23;i := i + 4; {37484#(and (or (and (<= 56 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)) (or (<= main_n 53) (<= main_i 56)))} is VALID [2019-01-31 14:43:22,787 INFO L273 TraceCheckUtils]: 28: Hoare triple {37484#(and (or (and (<= 56 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)) (or (<= main_n 53) (<= main_i 56)))} assume i <= n * 4; {37484#(and (or (and (<= 56 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)) (or (<= main_n 53) (<= main_i 56)))} is VALID [2019-01-31 14:43:22,788 INFO L273 TraceCheckUtils]: 29: Hoare triple {37484#(and (or (and (<= 56 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)) (or (<= main_n 53) (<= main_i 56)))} assume a[i] != 23;i := i + 4; {37485#(and (or (<= main_n 53) (<= main_i 60)) (or (< 53 main_n) (and (<= 60 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:43:22,789 INFO L273 TraceCheckUtils]: 30: Hoare triple {37485#(and (or (<= main_n 53) (<= main_i 60)) (or (< 53 main_n) (and (<= 60 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {37485#(and (or (<= main_n 53) (<= main_i 60)) (or (< 53 main_n) (and (<= 60 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:43:22,790 INFO L273 TraceCheckUtils]: 31: Hoare triple {37485#(and (or (<= main_n 53) (<= main_i 60)) (or (< 53 main_n) (and (<= 60 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {37486#(and (or (and (<= 64 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)) (or (<= main_i 64) (<= main_n 53)))} is VALID [2019-01-31 14:43:22,790 INFO L273 TraceCheckUtils]: 32: Hoare triple {37486#(and (or (and (<= 64 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)) (or (<= main_i 64) (<= main_n 53)))} assume i <= n * 4; {37486#(and (or (and (<= 64 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)) (or (<= main_i 64) (<= main_n 53)))} is VALID [2019-01-31 14:43:22,791 INFO L273 TraceCheckUtils]: 33: Hoare triple {37486#(and (or (and (<= 64 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)) (or (<= main_i 64) (<= main_n 53)))} assume a[i] != 23;i := i + 4; {37487#(and (or (<= main_n 53) (<= main_i 68)) (or (and (<= 68 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)))} is VALID [2019-01-31 14:43:22,792 INFO L273 TraceCheckUtils]: 34: Hoare triple {37487#(and (or (<= main_n 53) (<= main_i 68)) (or (and (<= 68 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)))} assume i <= n * 4; {37487#(and (or (<= main_n 53) (<= main_i 68)) (or (and (<= 68 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)))} is VALID [2019-01-31 14:43:22,793 INFO L273 TraceCheckUtils]: 35: Hoare triple {37487#(and (or (<= main_n 53) (<= main_i 68)) (or (and (<= 68 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)))} assume a[i] != 23;i := i + 4; {37488#(and (or (and (<= 72 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)) (or (<= main_n 53) (<= main_i 72)))} is VALID [2019-01-31 14:43:22,794 INFO L273 TraceCheckUtils]: 36: Hoare triple {37488#(and (or (and (<= 72 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)) (or (<= main_n 53) (<= main_i 72)))} assume i <= n * 4; {37488#(and (or (and (<= 72 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)) (or (<= main_n 53) (<= main_i 72)))} is VALID [2019-01-31 14:43:22,795 INFO L273 TraceCheckUtils]: 37: Hoare triple {37488#(and (or (and (<= 72 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)) (or (<= main_n 53) (<= main_i 72)))} assume a[i] != 23;i := i + 4; {37489#(and (or (<= main_i 76) (<= main_n 53)) (or (and (<= 76 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)))} is VALID [2019-01-31 14:43:22,796 INFO L273 TraceCheckUtils]: 38: Hoare triple {37489#(and (or (<= main_i 76) (<= main_n 53)) (or (and (<= 76 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)))} assume i <= n * 4; {37489#(and (or (<= main_i 76) (<= main_n 53)) (or (and (<= 76 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)))} is VALID [2019-01-31 14:43:22,797 INFO L273 TraceCheckUtils]: 39: Hoare triple {37489#(and (or (<= main_i 76) (<= main_n 53)) (or (and (<= 76 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)))} assume a[i] != 23;i := i + 4; {37490#(and (or (and (<= 80 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)) (or (<= main_n 53) (<= main_i 80)))} is VALID [2019-01-31 14:43:22,797 INFO L273 TraceCheckUtils]: 40: Hoare triple {37490#(and (or (and (<= 80 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)) (or (<= main_n 53) (<= main_i 80)))} assume i <= n * 4; {37490#(and (or (and (<= 80 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)) (or (<= main_n 53) (<= main_i 80)))} is VALID [2019-01-31 14:43:22,798 INFO L273 TraceCheckUtils]: 41: Hoare triple {37490#(and (or (and (<= 80 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)) (or (<= main_n 53) (<= main_i 80)))} assume a[i] != 23;i := i + 4; {37491#(and (or (<= main_i 84) (<= main_n 53)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 84 main_i)) (< 53 main_n)))} is VALID [2019-01-31 14:43:22,799 INFO L273 TraceCheckUtils]: 42: Hoare triple {37491#(and (or (<= main_i 84) (<= main_n 53)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 84 main_i)) (< 53 main_n)))} assume i <= n * 4; {37491#(and (or (<= main_i 84) (<= main_n 53)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 84 main_i)) (< 53 main_n)))} is VALID [2019-01-31 14:43:22,800 INFO L273 TraceCheckUtils]: 43: Hoare triple {37491#(and (or (<= main_i 84) (<= main_n 53)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 84 main_i)) (< 53 main_n)))} assume a[i] != 23;i := i + 4; {37492#(and (or (and (<= 88 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)) (or (<= main_i 88) (<= main_n 53)))} is VALID [2019-01-31 14:43:22,801 INFO L273 TraceCheckUtils]: 44: Hoare triple {37492#(and (or (and (<= 88 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)) (or (<= main_i 88) (<= main_n 53)))} assume i <= n * 4; {37492#(and (or (and (<= 88 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)) (or (<= main_i 88) (<= main_n 53)))} is VALID [2019-01-31 14:43:22,802 INFO L273 TraceCheckUtils]: 45: Hoare triple {37492#(and (or (and (<= 88 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)) (or (<= main_i 88) (<= main_n 53)))} assume a[i] != 23;i := i + 4; {37493#(and (or (< 53 main_n) (and (<= 92 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 92) (<= main_n 53)))} is VALID [2019-01-31 14:43:22,803 INFO L273 TraceCheckUtils]: 46: Hoare triple {37493#(and (or (< 53 main_n) (and (<= 92 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 92) (<= main_n 53)))} assume i <= n * 4; {37493#(and (or (< 53 main_n) (and (<= 92 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 92) (<= main_n 53)))} is VALID [2019-01-31 14:43:22,804 INFO L273 TraceCheckUtils]: 47: Hoare triple {37493#(and (or (< 53 main_n) (and (<= 92 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 92) (<= main_n 53)))} assume a[i] != 23;i := i + 4; {37494#(and (or (and (<= 96 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)) (or (<= main_i 96) (<= main_n 53)))} is VALID [2019-01-31 14:43:22,805 INFO L273 TraceCheckUtils]: 48: Hoare triple {37494#(and (or (and (<= 96 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)) (or (<= main_i 96) (<= main_n 53)))} assume i <= n * 4; {37494#(and (or (and (<= 96 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)) (or (<= main_i 96) (<= main_n 53)))} is VALID [2019-01-31 14:43:22,806 INFO L273 TraceCheckUtils]: 49: Hoare triple {37494#(and (or (and (<= 96 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)) (or (<= main_i 96) (<= main_n 53)))} assume a[i] != 23;i := i + 4; {37495#(and (or (and (<= 100 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)) (or (<= main_i 100) (<= main_n 53)))} is VALID [2019-01-31 14:43:22,806 INFO L273 TraceCheckUtils]: 50: Hoare triple {37495#(and (or (and (<= 100 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)) (or (<= main_i 100) (<= main_n 53)))} assume i <= n * 4; {37495#(and (or (and (<= 100 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)) (or (<= main_i 100) (<= main_n 53)))} is VALID [2019-01-31 14:43:22,807 INFO L273 TraceCheckUtils]: 51: Hoare triple {37495#(and (or (and (<= 100 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)) (or (<= main_i 100) (<= main_n 53)))} assume a[i] != 23;i := i + 4; {37496#(and (or (<= main_i 104) (<= main_n 53)) (or (and (<= 104 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)))} is VALID [2019-01-31 14:43:22,808 INFO L273 TraceCheckUtils]: 52: Hoare triple {37496#(and (or (<= main_i 104) (<= main_n 53)) (or (and (<= 104 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)))} assume i <= n * 4; {37496#(and (or (<= main_i 104) (<= main_n 53)) (or (and (<= 104 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)))} is VALID [2019-01-31 14:43:22,809 INFO L273 TraceCheckUtils]: 53: Hoare triple {37496#(and (or (<= main_i 104) (<= main_n 53)) (or (and (<= 104 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)))} assume a[i] != 23;i := i + 4; {37497#(and (or (and (<= 108 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)) (or (<= main_n 53) (<= main_i 108)))} is VALID [2019-01-31 14:43:22,810 INFO L273 TraceCheckUtils]: 54: Hoare triple {37497#(and (or (and (<= 108 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)) (or (<= main_n 53) (<= main_i 108)))} assume i <= n * 4; {37497#(and (or (and (<= 108 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)) (or (<= main_n 53) (<= main_i 108)))} is VALID [2019-01-31 14:43:22,811 INFO L273 TraceCheckUtils]: 55: Hoare triple {37497#(and (or (and (<= 108 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)) (or (<= main_n 53) (<= main_i 108)))} assume a[i] != 23;i := i + 4; {37498#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 112 main_i)) (< 53 main_n)) (or (<= main_n 53) (<= main_i 112)))} is VALID [2019-01-31 14:43:22,812 INFO L273 TraceCheckUtils]: 56: Hoare triple {37498#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 112 main_i)) (< 53 main_n)) (or (<= main_n 53) (<= main_i 112)))} assume i <= n * 4; {37498#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 112 main_i)) (< 53 main_n)) (or (<= main_n 53) (<= main_i 112)))} is VALID [2019-01-31 14:43:22,813 INFO L273 TraceCheckUtils]: 57: Hoare triple {37498#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 112 main_i)) (< 53 main_n)) (or (<= main_n 53) (<= main_i 112)))} assume a[i] != 23;i := i + 4; {37499#(and (or (<= main_n 53) (<= main_i 116)) (or (< 53 main_n) (and (<= 116 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:43:22,814 INFO L273 TraceCheckUtils]: 58: Hoare triple {37499#(and (or (<= main_n 53) (<= main_i 116)) (or (< 53 main_n) (and (<= 116 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {37499#(and (or (<= main_n 53) (<= main_i 116)) (or (< 53 main_n) (and (<= 116 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:43:22,815 INFO L273 TraceCheckUtils]: 59: Hoare triple {37499#(and (or (<= main_n 53) (<= main_i 116)) (or (< 53 main_n) (and (<= 116 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {37500#(and (or (< 53 main_n) (and (<= 120 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 120) (<= main_n 53)))} is VALID [2019-01-31 14:43:22,815 INFO L273 TraceCheckUtils]: 60: Hoare triple {37500#(and (or (< 53 main_n) (and (<= 120 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 120) (<= main_n 53)))} assume i <= n * 4; {37500#(and (or (< 53 main_n) (and (<= 120 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 120) (<= main_n 53)))} is VALID [2019-01-31 14:43:22,816 INFO L273 TraceCheckUtils]: 61: Hoare triple {37500#(and (or (< 53 main_n) (and (<= 120 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 120) (<= main_n 53)))} assume a[i] != 23;i := i + 4; {37501#(and (or (<= main_n 53) (<= main_i 124)) (or (and (<= 124 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)))} is VALID [2019-01-31 14:43:22,817 INFO L273 TraceCheckUtils]: 62: Hoare triple {37501#(and (or (<= main_n 53) (<= main_i 124)) (or (and (<= 124 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)))} assume i <= n * 4; {37501#(and (or (<= main_n 53) (<= main_i 124)) (or (and (<= 124 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)))} is VALID [2019-01-31 14:43:22,818 INFO L273 TraceCheckUtils]: 63: Hoare triple {37501#(and (or (<= main_n 53) (<= main_i 124)) (or (and (<= 124 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)))} assume a[i] != 23;i := i + 4; {37502#(and (or (<= main_n 53) (<= main_i 128)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 128 main_i)) (< 53 main_n)))} is VALID [2019-01-31 14:43:22,819 INFO L273 TraceCheckUtils]: 64: Hoare triple {37502#(and (or (<= main_n 53) (<= main_i 128)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 128 main_i)) (< 53 main_n)))} assume i <= n * 4; {37502#(and (or (<= main_n 53) (<= main_i 128)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 128 main_i)) (< 53 main_n)))} is VALID [2019-01-31 14:43:22,820 INFO L273 TraceCheckUtils]: 65: Hoare triple {37502#(and (or (<= main_n 53) (<= main_i 128)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 128 main_i)) (< 53 main_n)))} assume a[i] != 23;i := i + 4; {37503#(and (or (and (<= 132 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)) (or (<= main_i 132) (<= main_n 53)))} is VALID [2019-01-31 14:43:22,821 INFO L273 TraceCheckUtils]: 66: Hoare triple {37503#(and (or (and (<= 132 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)) (or (<= main_i 132) (<= main_n 53)))} assume i <= n * 4; {37503#(and (or (and (<= 132 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)) (or (<= main_i 132) (<= main_n 53)))} is VALID [2019-01-31 14:43:22,822 INFO L273 TraceCheckUtils]: 67: Hoare triple {37503#(and (or (and (<= 132 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)) (or (<= main_i 132) (<= main_n 53)))} assume a[i] != 23;i := i + 4; {37504#(and (or (< 53 main_n) (and (<= 136 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 136) (<= main_n 53)))} is VALID [2019-01-31 14:43:22,822 INFO L273 TraceCheckUtils]: 68: Hoare triple {37504#(and (or (< 53 main_n) (and (<= 136 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 136) (<= main_n 53)))} assume i <= n * 4; {37504#(and (or (< 53 main_n) (and (<= 136 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 136) (<= main_n 53)))} is VALID [2019-01-31 14:43:22,824 INFO L273 TraceCheckUtils]: 69: Hoare triple {37504#(and (or (< 53 main_n) (and (<= 136 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 136) (<= main_n 53)))} assume a[i] != 23;i := i + 4; {37505#(and (or (< 53 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 140 main_i))) (or (<= main_n 53) (<= main_i 140)))} is VALID [2019-01-31 14:43:22,824 INFO L273 TraceCheckUtils]: 70: Hoare triple {37505#(and (or (< 53 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 140 main_i))) (or (<= main_n 53) (<= main_i 140)))} assume i <= n * 4; {37505#(and (or (< 53 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 140 main_i))) (or (<= main_n 53) (<= main_i 140)))} is VALID [2019-01-31 14:43:22,825 INFO L273 TraceCheckUtils]: 71: Hoare triple {37505#(and (or (< 53 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 140 main_i))) (or (<= main_n 53) (<= main_i 140)))} assume a[i] != 23;i := i + 4; {37506#(and (or (< 53 main_n) (and (<= 144 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 53) (<= main_i 144)))} is VALID [2019-01-31 14:43:22,826 INFO L273 TraceCheckUtils]: 72: Hoare triple {37506#(and (or (< 53 main_n) (and (<= 144 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 53) (<= main_i 144)))} assume i <= n * 4; {37506#(and (or (< 53 main_n) (and (<= 144 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 53) (<= main_i 144)))} is VALID [2019-01-31 14:43:22,827 INFO L273 TraceCheckUtils]: 73: Hoare triple {37506#(and (or (< 53 main_n) (and (<= 144 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 53) (<= main_i 144)))} assume a[i] != 23;i := i + 4; {37507#(and (or (< 53 main_n) (and (<= 148 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 53) (<= main_i 148)))} is VALID [2019-01-31 14:43:22,828 INFO L273 TraceCheckUtils]: 74: Hoare triple {37507#(and (or (< 53 main_n) (and (<= 148 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 53) (<= main_i 148)))} assume i <= n * 4; {37507#(and (or (< 53 main_n) (and (<= 148 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 53) (<= main_i 148)))} is VALID [2019-01-31 14:43:22,829 INFO L273 TraceCheckUtils]: 75: Hoare triple {37507#(and (or (< 53 main_n) (and (<= 148 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 53) (<= main_i 148)))} assume a[i] != 23;i := i + 4; {37508#(and (or (<= main_n 53) (<= main_i 152)) (or (and (<= 152 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)))} is VALID [2019-01-31 14:43:22,830 INFO L273 TraceCheckUtils]: 76: Hoare triple {37508#(and (or (<= main_n 53) (<= main_i 152)) (or (and (<= 152 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)))} assume i <= n * 4; {37508#(and (or (<= main_n 53) (<= main_i 152)) (or (and (<= 152 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)))} is VALID [2019-01-31 14:43:22,831 INFO L273 TraceCheckUtils]: 77: Hoare triple {37508#(and (or (<= main_n 53) (<= main_i 152)) (or (and (<= 152 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)))} assume a[i] != 23;i := i + 4; {37509#(and (or (< 53 main_n) (and (<= 156 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 156) (<= main_n 53)))} is VALID [2019-01-31 14:43:22,831 INFO L273 TraceCheckUtils]: 78: Hoare triple {37509#(and (or (< 53 main_n) (and (<= 156 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 156) (<= main_n 53)))} assume i <= n * 4; {37509#(and (or (< 53 main_n) (and (<= 156 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 156) (<= main_n 53)))} is VALID [2019-01-31 14:43:22,832 INFO L273 TraceCheckUtils]: 79: Hoare triple {37509#(and (or (< 53 main_n) (and (<= 156 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 156) (<= main_n 53)))} assume a[i] != 23;i := i + 4; {37510#(and (or (<= main_n 53) (<= main_i 160)) (or (and (<= 160 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)))} is VALID [2019-01-31 14:43:22,833 INFO L273 TraceCheckUtils]: 80: Hoare triple {37510#(and (or (<= main_n 53) (<= main_i 160)) (or (and (<= 160 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)))} assume i <= n * 4; {37510#(and (or (<= main_n 53) (<= main_i 160)) (or (and (<= 160 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)))} is VALID [2019-01-31 14:43:22,834 INFO L273 TraceCheckUtils]: 81: Hoare triple {37510#(and (or (<= main_n 53) (<= main_i 160)) (or (and (<= 160 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)))} assume a[i] != 23;i := i + 4; {37511#(and (or (and (<= 164 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)) (or (<= main_i 164) (<= main_n 53)))} is VALID [2019-01-31 14:43:22,835 INFO L273 TraceCheckUtils]: 82: Hoare triple {37511#(and (or (and (<= 164 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)) (or (<= main_i 164) (<= main_n 53)))} assume i <= n * 4; {37511#(and (or (and (<= 164 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)) (or (<= main_i 164) (<= main_n 53)))} is VALID [2019-01-31 14:43:22,836 INFO L273 TraceCheckUtils]: 83: Hoare triple {37511#(and (or (and (<= 164 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)) (or (<= main_i 164) (<= main_n 53)))} assume a[i] != 23;i := i + 4; {37512#(and (or (and (<= 168 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)) (or (<= main_n 53) (<= main_i 168)))} is VALID [2019-01-31 14:43:22,837 INFO L273 TraceCheckUtils]: 84: Hoare triple {37512#(and (or (and (<= 168 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)) (or (<= main_n 53) (<= main_i 168)))} assume i <= n * 4; {37512#(and (or (and (<= 168 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)) (or (<= main_n 53) (<= main_i 168)))} is VALID [2019-01-31 14:43:22,838 INFO L273 TraceCheckUtils]: 85: Hoare triple {37512#(and (or (and (<= 168 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)) (or (<= main_n 53) (<= main_i 168)))} assume a[i] != 23;i := i + 4; {37513#(and (or (<= main_n 53) (<= main_i 172)) (or (and (<= 172 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)))} is VALID [2019-01-31 14:43:22,839 INFO L273 TraceCheckUtils]: 86: Hoare triple {37513#(and (or (<= main_n 53) (<= main_i 172)) (or (and (<= 172 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)))} assume i <= n * 4; {37513#(and (or (<= main_n 53) (<= main_i 172)) (or (and (<= 172 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)))} is VALID [2019-01-31 14:43:22,840 INFO L273 TraceCheckUtils]: 87: Hoare triple {37513#(and (or (<= main_n 53) (<= main_i 172)) (or (and (<= 172 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)))} assume a[i] != 23;i := i + 4; {37514#(and (or (<= main_i 176) (<= main_n 53)) (or (< 53 main_n) (and (<= 176 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:43:22,840 INFO L273 TraceCheckUtils]: 88: Hoare triple {37514#(and (or (<= main_i 176) (<= main_n 53)) (or (< 53 main_n) (and (<= 176 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {37514#(and (or (<= main_i 176) (<= main_n 53)) (or (< 53 main_n) (and (<= 176 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:43:22,841 INFO L273 TraceCheckUtils]: 89: Hoare triple {37514#(and (or (<= main_i 176) (<= main_n 53)) (or (< 53 main_n) (and (<= 176 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {37515#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 180 main_i)) (< 53 main_n)) (or (<= main_n 53) (<= main_i 180)))} is VALID [2019-01-31 14:43:22,842 INFO L273 TraceCheckUtils]: 90: Hoare triple {37515#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 180 main_i)) (< 53 main_n)) (or (<= main_n 53) (<= main_i 180)))} assume i <= n * 4; {37515#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 180 main_i)) (< 53 main_n)) (or (<= main_n 53) (<= main_i 180)))} is VALID [2019-01-31 14:43:22,843 INFO L273 TraceCheckUtils]: 91: Hoare triple {37515#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 180 main_i)) (< 53 main_n)) (or (<= main_n 53) (<= main_i 180)))} assume a[i] != 23;i := i + 4; {37516#(and (or (<= main_i 184) (<= main_n 53)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 184 main_i)) (< 53 main_n)))} is VALID [2019-01-31 14:43:22,844 INFO L273 TraceCheckUtils]: 92: Hoare triple {37516#(and (or (<= main_i 184) (<= main_n 53)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 184 main_i)) (< 53 main_n)))} assume i <= n * 4; {37516#(and (or (<= main_i 184) (<= main_n 53)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 184 main_i)) (< 53 main_n)))} is VALID [2019-01-31 14:43:22,845 INFO L273 TraceCheckUtils]: 93: Hoare triple {37516#(and (or (<= main_i 184) (<= main_n 53)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 184 main_i)) (< 53 main_n)))} assume a[i] != 23;i := i + 4; {37517#(and (or (<= main_i 188) (<= main_n 53)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 188 main_i)) (< 53 main_n)))} is VALID [2019-01-31 14:43:22,846 INFO L273 TraceCheckUtils]: 94: Hoare triple {37517#(and (or (<= main_i 188) (<= main_n 53)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 188 main_i)) (< 53 main_n)))} assume i <= n * 4; {37517#(and (or (<= main_i 188) (<= main_n 53)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 188 main_i)) (< 53 main_n)))} is VALID [2019-01-31 14:43:22,847 INFO L273 TraceCheckUtils]: 95: Hoare triple {37517#(and (or (<= main_i 188) (<= main_n 53)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 188 main_i)) (< 53 main_n)))} assume a[i] != 23;i := i + 4; {37518#(and (or (<= main_i 192) (<= main_n 53)) (or (and (<= 192 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)))} is VALID [2019-01-31 14:43:22,848 INFO L273 TraceCheckUtils]: 96: Hoare triple {37518#(and (or (<= main_i 192) (<= main_n 53)) (or (and (<= 192 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)))} assume i <= n * 4; {37518#(and (or (<= main_i 192) (<= main_n 53)) (or (and (<= 192 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)))} is VALID [2019-01-31 14:43:22,849 INFO L273 TraceCheckUtils]: 97: Hoare triple {37518#(and (or (<= main_i 192) (<= main_n 53)) (or (and (<= 192 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)))} assume a[i] != 23;i := i + 4; {37519#(and (or (<= main_n 53) (<= main_i 196)) (or (and (<= 196 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)))} is VALID [2019-01-31 14:43:22,849 INFO L273 TraceCheckUtils]: 98: Hoare triple {37519#(and (or (<= main_n 53) (<= main_i 196)) (or (and (<= 196 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)))} assume i <= n * 4; {37519#(and (or (<= main_n 53) (<= main_i 196)) (or (and (<= 196 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)))} is VALID [2019-01-31 14:43:22,850 INFO L273 TraceCheckUtils]: 99: Hoare triple {37519#(and (or (<= main_n 53) (<= main_i 196)) (or (and (<= 196 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)))} assume a[i] != 23;i := i + 4; {37520#(and (or (<= main_n 53) (<= main_i 200)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 200 main_i)) (< 53 main_n)))} is VALID [2019-01-31 14:43:22,851 INFO L273 TraceCheckUtils]: 100: Hoare triple {37520#(and (or (<= main_n 53) (<= main_i 200)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 200 main_i)) (< 53 main_n)))} assume i <= n * 4; {37520#(and (or (<= main_n 53) (<= main_i 200)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 200 main_i)) (< 53 main_n)))} is VALID [2019-01-31 14:43:22,852 INFO L273 TraceCheckUtils]: 101: Hoare triple {37520#(and (or (<= main_n 53) (<= main_i 200)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 200 main_i)) (< 53 main_n)))} assume a[i] != 23;i := i + 4; {37521#(and (or (and (<= 204 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)) (or (<= main_n 53) (<= main_i 204)))} is VALID [2019-01-31 14:43:22,853 INFO L273 TraceCheckUtils]: 102: Hoare triple {37521#(and (or (and (<= 204 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)) (or (<= main_n 53) (<= main_i 204)))} assume i <= n * 4; {37521#(and (or (and (<= 204 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)) (or (<= main_n 53) (<= main_i 204)))} is VALID [2019-01-31 14:43:22,854 INFO L273 TraceCheckUtils]: 103: Hoare triple {37521#(and (or (and (<= 204 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)) (or (<= main_n 53) (<= main_i 204)))} assume a[i] != 23;i := i + 4; {37522#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 208 main_i)) (< 53 main_n)) (or (<= main_i 208) (<= main_n 53)))} is VALID [2019-01-31 14:43:22,855 INFO L273 TraceCheckUtils]: 104: Hoare triple {37522#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 208 main_i)) (< 53 main_n)) (or (<= main_i 208) (<= main_n 53)))} assume i <= n * 4; {37522#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 208 main_i)) (< 53 main_n)) (or (<= main_i 208) (<= main_n 53)))} is VALID [2019-01-31 14:43:22,856 INFO L273 TraceCheckUtils]: 105: Hoare triple {37522#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 208 main_i)) (< 53 main_n)) (or (<= main_i 208) (<= main_n 53)))} assume a[i] != 23;i := i + 4; {37523#(and (or (<= main_i 212) (<= main_n 53)) (or (and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (<= (* 4 main_n) main_i)) (< 53 main_n)))} is VALID [2019-01-31 14:43:22,857 INFO L273 TraceCheckUtils]: 106: Hoare triple {37523#(and (or (<= main_i 212) (<= main_n 53)) (or (and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (<= (* 4 main_n) main_i)) (< 53 main_n)))} assume i <= n * 4; {37524#(and (<= main_i 212) (or (< 53 main_n) (and (<= (* 4 main_n) main_i) (<= main_i (* 4 main_n)) (= 23 (select main_a main_i)))))} is VALID [2019-01-31 14:43:22,858 INFO L273 TraceCheckUtils]: 107: Hoare triple {37524#(and (<= main_i 212) (or (< 53 main_n) (and (<= (* 4 main_n) main_i) (<= main_i (* 4 main_n)) (= 23 (select main_a main_i)))))} assume a[i] != 23;i := i + 4; {37525#(and (<= main_i 216) (<= 54 main_n))} is VALID [2019-01-31 14:43:22,859 INFO L273 TraceCheckUtils]: 108: Hoare triple {37525#(and (<= main_i 216) (<= 54 main_n))} assume !(i <= n * 4); {37469#false} is VALID [2019-01-31 14:43:22,916 INFO L134 CoverageAnalysis]: Checked inductivity of 2862 backedges. 0 proven. 2862 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-31 14:43:22,916 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-31 14:43:22,916 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-01-31 14:43:22,916 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-01-31 14:43:22,916 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-01-31 14:43:22,916 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-31 14:43:22,916 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 14:43:22,925 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2019-01-31 14:43:22,925 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST2 (IT: FPandBP) [2019-01-31 14:43:23,014 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 54 check-sat command(s) [2019-01-31 14:43:23,014 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-01-31 14:43:23,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-31 14:43:23,030 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-31 14:43:23,039 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 14:43:23,043 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-01-31 14:43:23,051 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-31 14:43:23,051 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2019-01-31 14:43:23,053 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-01-31 14:43:23,053 WARN L398 uantifierElimination]: Input elimination task: ∃ [v_main_a_57]. (and (= main_a (store v_main_a_57 (* 4 main_n) 23)) (= main_i 0)) [2019-01-31 14:43:23,053 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2019-01-31 14:43:27,809 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2019-01-31 14:43:27,810 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-01-31 14:43:27,816 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-31 14:43:27,817 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2019-01-31 14:43:27,819 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-01-31 14:43:27,819 WARN L398 uantifierElimination]: Input elimination task: ∃ [main_a]. (let ((.cse0 (* 4 main_n))) (and (<= main_i 216) (not (= (select main_a 212) 23)) (= 23 (select main_a .cse0)) (<= 212 .cse0))) [2019-01-31 14:43:27,819 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (let ((.cse0 (* 4 main_n))) (and (<= main_i 216) (not (= 212 .cse0)) (<= 212 .cse0))) [2019-01-31 14:43:27,884 INFO L273 TraceCheckUtils]: 0: Hoare triple {37468#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {37529#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:43:27,884 INFO L273 TraceCheckUtils]: 1: Hoare triple {37529#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {37533#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2019-01-31 14:43:27,885 INFO L273 TraceCheckUtils]: 2: Hoare triple {37533#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume i <= n * 4; {37533#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2019-01-31 14:43:27,886 INFO L273 TraceCheckUtils]: 3: Hoare triple {37533#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume a[i] != 23;i := i + 4; {37540#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:43:27,886 INFO L273 TraceCheckUtils]: 4: Hoare triple {37540#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {37540#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:43:27,887 INFO L273 TraceCheckUtils]: 5: Hoare triple {37540#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {37547#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2019-01-31 14:43:27,888 INFO L273 TraceCheckUtils]: 6: Hoare triple {37547#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume i <= n * 4; {37547#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2019-01-31 14:43:27,888 INFO L273 TraceCheckUtils]: 7: Hoare triple {37547#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume a[i] != 23;i := i + 4; {37554#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:43:27,889 INFO L273 TraceCheckUtils]: 8: Hoare triple {37554#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {37554#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:43:27,890 INFO L273 TraceCheckUtils]: 9: Hoare triple {37554#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {37561#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:43:27,890 INFO L273 TraceCheckUtils]: 10: Hoare triple {37561#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {37561#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:43:27,891 INFO L273 TraceCheckUtils]: 11: Hoare triple {37561#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {37568#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:43:27,892 INFO L273 TraceCheckUtils]: 12: Hoare triple {37568#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {37568#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:43:27,892 INFO L273 TraceCheckUtils]: 13: Hoare triple {37568#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {37575#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:43:27,893 INFO L273 TraceCheckUtils]: 14: Hoare triple {37575#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {37575#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:43:27,894 INFO L273 TraceCheckUtils]: 15: Hoare triple {37575#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {37582#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:43:27,894 INFO L273 TraceCheckUtils]: 16: Hoare triple {37582#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {37582#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:43:27,895 INFO L273 TraceCheckUtils]: 17: Hoare triple {37582#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {37589#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:43:27,896 INFO L273 TraceCheckUtils]: 18: Hoare triple {37589#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {37589#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:43:27,896 INFO L273 TraceCheckUtils]: 19: Hoare triple {37589#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {37596#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:43:27,897 INFO L273 TraceCheckUtils]: 20: Hoare triple {37596#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {37596#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:43:27,898 INFO L273 TraceCheckUtils]: 21: Hoare triple {37596#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {37603#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:43:27,898 INFO L273 TraceCheckUtils]: 22: Hoare triple {37603#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {37603#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:43:27,899 INFO L273 TraceCheckUtils]: 23: Hoare triple {37603#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {37610#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:43:27,900 INFO L273 TraceCheckUtils]: 24: Hoare triple {37610#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {37610#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:43:27,900 INFO L273 TraceCheckUtils]: 25: Hoare triple {37610#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {37617#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:43:27,901 INFO L273 TraceCheckUtils]: 26: Hoare triple {37617#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {37617#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:43:27,902 INFO L273 TraceCheckUtils]: 27: Hoare triple {37617#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {37624#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:43:27,902 INFO L273 TraceCheckUtils]: 28: Hoare triple {37624#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {37624#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:43:27,903 INFO L273 TraceCheckUtils]: 29: Hoare triple {37624#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {37631#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:43:27,904 INFO L273 TraceCheckUtils]: 30: Hoare triple {37631#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {37631#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:43:27,905 INFO L273 TraceCheckUtils]: 31: Hoare triple {37631#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {37638#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:43:27,905 INFO L273 TraceCheckUtils]: 32: Hoare triple {37638#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {37638#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:43:27,906 INFO L273 TraceCheckUtils]: 33: Hoare triple {37638#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {37645#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:43:27,906 INFO L273 TraceCheckUtils]: 34: Hoare triple {37645#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {37645#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:43:27,907 INFO L273 TraceCheckUtils]: 35: Hoare triple {37645#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {37652#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:43:27,908 INFO L273 TraceCheckUtils]: 36: Hoare triple {37652#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {37652#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:43:27,909 INFO L273 TraceCheckUtils]: 37: Hoare triple {37652#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {37659#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:43:27,909 INFO L273 TraceCheckUtils]: 38: Hoare triple {37659#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {37659#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:43:27,910 INFO L273 TraceCheckUtils]: 39: Hoare triple {37659#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {37666#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} is VALID [2019-01-31 14:43:27,911 INFO L273 TraceCheckUtils]: 40: Hoare triple {37666#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} assume i <= n * 4; {37666#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} is VALID [2019-01-31 14:43:27,911 INFO L273 TraceCheckUtils]: 41: Hoare triple {37666#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} assume a[i] != 23;i := i + 4; {37673#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:43:27,912 INFO L273 TraceCheckUtils]: 42: Hoare triple {37673#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {37673#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:43:27,913 INFO L273 TraceCheckUtils]: 43: Hoare triple {37673#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {37680#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:43:27,913 INFO L273 TraceCheckUtils]: 44: Hoare triple {37680#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {37680#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:43:27,914 INFO L273 TraceCheckUtils]: 45: Hoare triple {37680#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {37687#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:43:27,915 INFO L273 TraceCheckUtils]: 46: Hoare triple {37687#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {37687#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:43:27,915 INFO L273 TraceCheckUtils]: 47: Hoare triple {37687#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {37694#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:43:27,916 INFO L273 TraceCheckUtils]: 48: Hoare triple {37694#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {37694#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:43:27,917 INFO L273 TraceCheckUtils]: 49: Hoare triple {37694#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {37701#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:43:27,917 INFO L273 TraceCheckUtils]: 50: Hoare triple {37701#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {37701#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:43:27,918 INFO L273 TraceCheckUtils]: 51: Hoare triple {37701#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {37708#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:43:27,919 INFO L273 TraceCheckUtils]: 52: Hoare triple {37708#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {37708#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:43:27,919 INFO L273 TraceCheckUtils]: 53: Hoare triple {37708#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {37715#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:43:27,920 INFO L273 TraceCheckUtils]: 54: Hoare triple {37715#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {37715#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:43:27,921 INFO L273 TraceCheckUtils]: 55: Hoare triple {37715#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {37722#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:43:27,921 INFO L273 TraceCheckUtils]: 56: Hoare triple {37722#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {37722#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:43:27,922 INFO L273 TraceCheckUtils]: 57: Hoare triple {37722#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {37729#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:43:27,923 INFO L273 TraceCheckUtils]: 58: Hoare triple {37729#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {37729#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:43:27,923 INFO L273 TraceCheckUtils]: 59: Hoare triple {37729#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {37736#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:43:27,924 INFO L273 TraceCheckUtils]: 60: Hoare triple {37736#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {37736#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:43:27,925 INFO L273 TraceCheckUtils]: 61: Hoare triple {37736#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {37743#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:43:27,925 INFO L273 TraceCheckUtils]: 62: Hoare triple {37743#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {37743#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:43:27,926 INFO L273 TraceCheckUtils]: 63: Hoare triple {37743#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {37750#(and (= main_i 128) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:43:27,927 INFO L273 TraceCheckUtils]: 64: Hoare triple {37750#(and (= main_i 128) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {37750#(and (= main_i 128) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:43:27,928 INFO L273 TraceCheckUtils]: 65: Hoare triple {37750#(and (= main_i 128) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {37757#(and (= main_i 132) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:43:27,928 INFO L273 TraceCheckUtils]: 66: Hoare triple {37757#(and (= main_i 132) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {37757#(and (= main_i 132) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:43:27,929 INFO L273 TraceCheckUtils]: 67: Hoare triple {37757#(and (= main_i 132) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {37764#(and (= main_i 136) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:43:27,930 INFO L273 TraceCheckUtils]: 68: Hoare triple {37764#(and (= main_i 136) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {37764#(and (= main_i 136) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:43:27,930 INFO L273 TraceCheckUtils]: 69: Hoare triple {37764#(and (= main_i 136) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {37771#(and (= 23 (select main_a (* 4 main_n))) (= main_i 140))} is VALID [2019-01-31 14:43:27,931 INFO L273 TraceCheckUtils]: 70: Hoare triple {37771#(and (= 23 (select main_a (* 4 main_n))) (= main_i 140))} assume i <= n * 4; {37771#(and (= 23 (select main_a (* 4 main_n))) (= main_i 140))} is VALID [2019-01-31 14:43:27,932 INFO L273 TraceCheckUtils]: 71: Hoare triple {37771#(and (= 23 (select main_a (* 4 main_n))) (= main_i 140))} assume a[i] != 23;i := i + 4; {37778#(and (= main_i 144) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:43:27,933 INFO L273 TraceCheckUtils]: 72: Hoare triple {37778#(and (= main_i 144) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {37778#(and (= main_i 144) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:43:27,933 INFO L273 TraceCheckUtils]: 73: Hoare triple {37778#(and (= main_i 144) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {37785#(and (= main_i 148) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:43:27,934 INFO L273 TraceCheckUtils]: 74: Hoare triple {37785#(and (= main_i 148) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {37785#(and (= main_i 148) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:43:27,935 INFO L273 TraceCheckUtils]: 75: Hoare triple {37785#(and (= main_i 148) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {37792#(and (= main_i 152) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:43:27,935 INFO L273 TraceCheckUtils]: 76: Hoare triple {37792#(and (= main_i 152) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {37792#(and (= main_i 152) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:43:27,936 INFO L273 TraceCheckUtils]: 77: Hoare triple {37792#(and (= main_i 152) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {37799#(and (= main_i 156) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:43:27,937 INFO L273 TraceCheckUtils]: 78: Hoare triple {37799#(and (= main_i 156) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {37799#(and (= main_i 156) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:43:27,937 INFO L273 TraceCheckUtils]: 79: Hoare triple {37799#(and (= main_i 156) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {37806#(and (= main_i 160) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:43:27,938 INFO L273 TraceCheckUtils]: 80: Hoare triple {37806#(and (= main_i 160) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {37806#(and (= main_i 160) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:43:27,939 INFO L273 TraceCheckUtils]: 81: Hoare triple {37806#(and (= main_i 160) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {37813#(and (= 23 (select main_a (* 4 main_n))) (= main_i 164))} is VALID [2019-01-31 14:43:27,939 INFO L273 TraceCheckUtils]: 82: Hoare triple {37813#(and (= 23 (select main_a (* 4 main_n))) (= main_i 164))} assume i <= n * 4; {37813#(and (= 23 (select main_a (* 4 main_n))) (= main_i 164))} is VALID [2019-01-31 14:43:27,940 INFO L273 TraceCheckUtils]: 83: Hoare triple {37813#(and (= 23 (select main_a (* 4 main_n))) (= main_i 164))} assume a[i] != 23;i := i + 4; {37820#(and (= main_i 168) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:43:27,941 INFO L273 TraceCheckUtils]: 84: Hoare triple {37820#(and (= main_i 168) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {37820#(and (= main_i 168) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:43:27,941 INFO L273 TraceCheckUtils]: 85: Hoare triple {37820#(and (= main_i 168) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {37827#(and (= main_i 172) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:43:27,942 INFO L273 TraceCheckUtils]: 86: Hoare triple {37827#(and (= main_i 172) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {37827#(and (= main_i 172) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:43:27,943 INFO L273 TraceCheckUtils]: 87: Hoare triple {37827#(and (= main_i 172) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {37834#(and (= main_i 176) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:43:27,943 INFO L273 TraceCheckUtils]: 88: Hoare triple {37834#(and (= main_i 176) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {37834#(and (= main_i 176) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:43:27,944 INFO L273 TraceCheckUtils]: 89: Hoare triple {37834#(and (= main_i 176) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {37841#(and (= main_i 180) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:43:27,945 INFO L273 TraceCheckUtils]: 90: Hoare triple {37841#(and (= main_i 180) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {37841#(and (= main_i 180) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:43:27,945 INFO L273 TraceCheckUtils]: 91: Hoare triple {37841#(and (= main_i 180) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {37848#(and (= main_i 184) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:43:27,946 INFO L273 TraceCheckUtils]: 92: Hoare triple {37848#(and (= main_i 184) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {37848#(and (= main_i 184) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:43:27,947 INFO L273 TraceCheckUtils]: 93: Hoare triple {37848#(and (= main_i 184) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {37855#(and (= main_i 188) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:43:27,947 INFO L273 TraceCheckUtils]: 94: Hoare triple {37855#(and (= main_i 188) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {37855#(and (= main_i 188) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:43:27,948 INFO L273 TraceCheckUtils]: 95: Hoare triple {37855#(and (= main_i 188) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {37862#(and (= main_i 192) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:43:27,949 INFO L273 TraceCheckUtils]: 96: Hoare triple {37862#(and (= main_i 192) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {37862#(and (= main_i 192) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:43:27,949 INFO L273 TraceCheckUtils]: 97: Hoare triple {37862#(and (= main_i 192) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {37869#(and (= main_i 196) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:43:27,950 INFO L273 TraceCheckUtils]: 98: Hoare triple {37869#(and (= main_i 196) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {37869#(and (= main_i 196) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:43:27,951 INFO L273 TraceCheckUtils]: 99: Hoare triple {37869#(and (= main_i 196) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {37876#(and (= main_i 200) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:43:27,951 INFO L273 TraceCheckUtils]: 100: Hoare triple {37876#(and (= main_i 200) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {37876#(and (= main_i 200) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:43:27,952 INFO L273 TraceCheckUtils]: 101: Hoare triple {37876#(and (= main_i 200) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {37883#(and (= main_i 204) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:43:27,953 INFO L273 TraceCheckUtils]: 102: Hoare triple {37883#(and (= main_i 204) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {37883#(and (= main_i 204) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:43:27,953 INFO L273 TraceCheckUtils]: 103: Hoare triple {37883#(and (= main_i 204) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {37890#(and (= main_i 208) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:43:27,954 INFO L273 TraceCheckUtils]: 104: Hoare triple {37890#(and (= main_i 208) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {37890#(and (= main_i 208) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:43:27,955 INFO L273 TraceCheckUtils]: 105: Hoare triple {37890#(and (= main_i 208) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {37897#(and (= main_i 212) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:43:27,955 INFO L273 TraceCheckUtils]: 106: Hoare triple {37897#(and (= main_i 212) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {37901#(and (= main_i 212) (<= main_i (* 4 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-01-31 14:43:27,956 INFO L273 TraceCheckUtils]: 107: Hoare triple {37901#(and (= main_i 212) (<= main_i (* 4 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {37525#(and (<= main_i 216) (<= 54 main_n))} is VALID [2019-01-31 14:43:27,957 INFO L273 TraceCheckUtils]: 108: Hoare triple {37525#(and (<= main_i 216) (<= 54 main_n))} assume !(i <= n * 4); {37469#false} is VALID [2019-01-31 14:43:27,986 INFO L134 CoverageAnalysis]: Checked inductivity of 2862 backedges. 0 proven. 2862 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-31 14:43:27,986 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2019-01-31 14:43:36,354 INFO L273 TraceCheckUtils]: 108: Hoare triple {37908#(<= main_i (* 4 main_n))} assume !(i <= n * 4); {37469#false} is VALID [2019-01-31 14:43:36,355 INFO L273 TraceCheckUtils]: 107: Hoare triple {37912#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} assume a[i] != 23;i := i + 4; {37908#(<= main_i (* 4 main_n))} is VALID [2019-01-31 14:43:36,356 INFO L273 TraceCheckUtils]: 106: Hoare triple {37916#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} assume i <= n * 4; {37912#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} is VALID [2019-01-31 14:43:36,356 INFO L273 TraceCheckUtils]: 105: Hoare triple {37920#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume a[i] != 23;i := i + 4; {37916#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} is VALID [2019-01-31 14:43:36,357 INFO L273 TraceCheckUtils]: 104: Hoare triple {37920#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume i <= n * 4; {37920#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2019-01-31 14:43:36,357 INFO L273 TraceCheckUtils]: 103: Hoare triple {37927#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume a[i] != 23;i := i + 4; {37920#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2019-01-31 14:43:36,358 INFO L273 TraceCheckUtils]: 102: Hoare triple {37927#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume i <= n * 4; {37927#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2019-01-31 14:43:36,359 INFO L273 TraceCheckUtils]: 101: Hoare triple {37934#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume a[i] != 23;i := i + 4; {37927#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2019-01-31 14:43:36,359 INFO L273 TraceCheckUtils]: 100: Hoare triple {37934#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume i <= n * 4; {37934#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2019-01-31 14:43:36,360 INFO L273 TraceCheckUtils]: 99: Hoare triple {37941#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume a[i] != 23;i := i + 4; {37934#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2019-01-31 14:43:36,361 INFO L273 TraceCheckUtils]: 98: Hoare triple {37941#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume i <= n * 4; {37941#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2019-01-31 14:43:36,362 INFO L273 TraceCheckUtils]: 97: Hoare triple {37948#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {37941#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2019-01-31 14:43:36,362 INFO L273 TraceCheckUtils]: 96: Hoare triple {37948#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume i <= n * 4; {37948#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2019-01-31 14:43:36,363 INFO L273 TraceCheckUtils]: 95: Hoare triple {37955#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume a[i] != 23;i := i + 4; {37948#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2019-01-31 14:43:36,364 INFO L273 TraceCheckUtils]: 94: Hoare triple {37955#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume i <= n * 4; {37955#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2019-01-31 14:43:36,365 INFO L273 TraceCheckUtils]: 93: Hoare triple {37962#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {37955#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2019-01-31 14:43:36,365 INFO L273 TraceCheckUtils]: 92: Hoare triple {37962#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume i <= n * 4; {37962#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2019-01-31 14:43:36,366 INFO L273 TraceCheckUtils]: 91: Hoare triple {37969#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {37962#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2019-01-31 14:43:36,367 INFO L273 TraceCheckUtils]: 90: Hoare triple {37969#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume i <= n * 4; {37969#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2019-01-31 14:43:36,368 INFO L273 TraceCheckUtils]: 89: Hoare triple {37976#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {37969#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2019-01-31 14:43:36,368 INFO L273 TraceCheckUtils]: 88: Hoare triple {37976#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume i <= n * 4; {37976#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2019-01-31 14:43:36,369 INFO L273 TraceCheckUtils]: 87: Hoare triple {37983#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} assume a[i] != 23;i := i + 4; {37976#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2019-01-31 14:43:36,370 INFO L273 TraceCheckUtils]: 86: Hoare triple {37983#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} assume i <= n * 4; {37983#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} is VALID [2019-01-31 14:43:36,371 INFO L273 TraceCheckUtils]: 85: Hoare triple {37990#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {37983#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} is VALID [2019-01-31 14:43:36,372 INFO L273 TraceCheckUtils]: 84: Hoare triple {37990#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} assume i <= n * 4; {37990#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} is VALID [2019-01-31 14:43:36,373 INFO L273 TraceCheckUtils]: 83: Hoare triple {37997#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {37990#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} is VALID [2019-01-31 14:43:36,373 INFO L273 TraceCheckUtils]: 82: Hoare triple {37997#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} assume i <= n * 4; {37997#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} is VALID [2019-01-31 14:43:36,374 INFO L273 TraceCheckUtils]: 81: Hoare triple {38004#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} assume a[i] != 23;i := i + 4; {37997#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} is VALID [2019-01-31 14:43:36,375 INFO L273 TraceCheckUtils]: 80: Hoare triple {38004#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} assume i <= n * 4; {38004#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} is VALID [2019-01-31 14:43:36,376 INFO L273 TraceCheckUtils]: 79: Hoare triple {38011#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {38004#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} is VALID [2019-01-31 14:43:36,376 INFO L273 TraceCheckUtils]: 78: Hoare triple {38011#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} assume i <= n * 4; {38011#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} is VALID [2019-01-31 14:43:36,377 INFO L273 TraceCheckUtils]: 77: Hoare triple {38018#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} assume a[i] != 23;i := i + 4; {38011#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} is VALID [2019-01-31 14:43:36,378 INFO L273 TraceCheckUtils]: 76: Hoare triple {38018#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} assume i <= n * 4; {38018#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} is VALID [2019-01-31 14:43:36,379 INFO L273 TraceCheckUtils]: 75: Hoare triple {38025#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} assume a[i] != 23;i := i + 4; {38018#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} is VALID [2019-01-31 14:43:36,379 INFO L273 TraceCheckUtils]: 74: Hoare triple {38025#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} assume i <= n * 4; {38025#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} is VALID [2019-01-31 14:43:36,380 INFO L273 TraceCheckUtils]: 73: Hoare triple {38032#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} assume a[i] != 23;i := i + 4; {38025#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} is VALID [2019-01-31 14:43:36,381 INFO L273 TraceCheckUtils]: 72: Hoare triple {38032#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} assume i <= n * 4; {38032#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} is VALID [2019-01-31 14:43:36,382 INFO L273 TraceCheckUtils]: 71: Hoare triple {38039#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} assume a[i] != 23;i := i + 4; {38032#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} is VALID [2019-01-31 14:43:36,382 INFO L273 TraceCheckUtils]: 70: Hoare triple {38039#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} assume i <= n * 4; {38039#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} is VALID [2019-01-31 14:43:36,384 INFO L273 TraceCheckUtils]: 69: Hoare triple {38046#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} assume a[i] != 23;i := i + 4; {38039#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} is VALID [2019-01-31 14:43:36,384 INFO L273 TraceCheckUtils]: 68: Hoare triple {38046#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} assume i <= n * 4; {38046#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} is VALID [2019-01-31 14:43:36,385 INFO L273 TraceCheckUtils]: 67: Hoare triple {38053#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} assume a[i] != 23;i := i + 4; {38046#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} is VALID [2019-01-31 14:43:36,386 INFO L273 TraceCheckUtils]: 66: Hoare triple {38053#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} assume i <= n * 4; {38053#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} is VALID [2019-01-31 14:43:36,387 INFO L273 TraceCheckUtils]: 65: Hoare triple {38060#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {38053#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} is VALID [2019-01-31 14:43:36,387 INFO L273 TraceCheckUtils]: 64: Hoare triple {38060#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} assume i <= n * 4; {38060#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} is VALID [2019-01-31 14:43:36,388 INFO L273 TraceCheckUtils]: 63: Hoare triple {38067#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {38060#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} is VALID [2019-01-31 14:43:36,389 INFO L273 TraceCheckUtils]: 62: Hoare triple {38067#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} assume i <= n * 4; {38067#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} is VALID [2019-01-31 14:43:36,390 INFO L273 TraceCheckUtils]: 61: Hoare triple {38074#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {38067#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} is VALID [2019-01-31 14:43:36,390 INFO L273 TraceCheckUtils]: 60: Hoare triple {38074#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} assume i <= n * 4; {38074#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} is VALID [2019-01-31 14:43:36,391 INFO L273 TraceCheckUtils]: 59: Hoare triple {38081#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} assume a[i] != 23;i := i + 4; {38074#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} is VALID [2019-01-31 14:43:36,392 INFO L273 TraceCheckUtils]: 58: Hoare triple {38081#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} assume i <= n * 4; {38081#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} is VALID [2019-01-31 14:43:36,393 INFO L273 TraceCheckUtils]: 57: Hoare triple {38088#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {38081#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} is VALID [2019-01-31 14:43:36,393 INFO L273 TraceCheckUtils]: 56: Hoare triple {38088#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} assume i <= n * 4; {38088#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} is VALID [2019-01-31 14:43:36,394 INFO L273 TraceCheckUtils]: 55: Hoare triple {38095#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} assume a[i] != 23;i := i + 4; {38088#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} is VALID [2019-01-31 14:43:36,395 INFO L273 TraceCheckUtils]: 54: Hoare triple {38095#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} assume i <= n * 4; {38095#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} is VALID [2019-01-31 14:43:36,396 INFO L273 TraceCheckUtils]: 53: Hoare triple {38102#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} assume a[i] != 23;i := i + 4; {38095#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} is VALID [2019-01-31 14:43:36,397 INFO L273 TraceCheckUtils]: 52: Hoare triple {38102#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} assume i <= n * 4; {38102#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} is VALID [2019-01-31 14:43:36,398 INFO L273 TraceCheckUtils]: 51: Hoare triple {38109#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} assume a[i] != 23;i := i + 4; {38102#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} is VALID [2019-01-31 14:43:36,398 INFO L273 TraceCheckUtils]: 50: Hoare triple {38109#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} assume i <= n * 4; {38109#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} is VALID [2019-01-31 14:43:36,399 INFO L273 TraceCheckUtils]: 49: Hoare triple {38116#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {38109#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} is VALID [2019-01-31 14:43:36,400 INFO L273 TraceCheckUtils]: 48: Hoare triple {38116#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} assume i <= n * 4; {38116#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} is VALID [2019-01-31 14:43:36,401 INFO L273 TraceCheckUtils]: 47: Hoare triple {38123#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {38116#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} is VALID [2019-01-31 14:43:36,401 INFO L273 TraceCheckUtils]: 46: Hoare triple {38123#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} assume i <= n * 4; {38123#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} is VALID [2019-01-31 14:43:36,402 INFO L273 TraceCheckUtils]: 45: Hoare triple {38130#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} assume a[i] != 23;i := i + 4; {38123#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} is VALID [2019-01-31 14:43:36,403 INFO L273 TraceCheckUtils]: 44: Hoare triple {38130#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} assume i <= n * 4; {38130#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} is VALID [2019-01-31 14:43:36,404 INFO L273 TraceCheckUtils]: 43: Hoare triple {38137#(or (< (* 4 main_n) (+ main_i 128)) (= (select main_a (+ main_i 128)) 23) (< (+ main_i 131) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {38130#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} is VALID [2019-01-31 14:43:36,404 INFO L273 TraceCheckUtils]: 42: Hoare triple {38137#(or (< (* 4 main_n) (+ main_i 128)) (= (select main_a (+ main_i 128)) 23) (< (+ main_i 131) (* 4 main_n)))} assume i <= n * 4; {38137#(or (< (* 4 main_n) (+ main_i 128)) (= (select main_a (+ main_i 128)) 23) (< (+ main_i 131) (* 4 main_n)))} is VALID [2019-01-31 14:43:36,405 INFO L273 TraceCheckUtils]: 41: Hoare triple {38144#(or (< (* 4 main_n) (+ main_i 132)) (< (+ main_i 135) (* 4 main_n)) (= (select main_a (+ main_i 132)) 23))} assume a[i] != 23;i := i + 4; {38137#(or (< (* 4 main_n) (+ main_i 128)) (= (select main_a (+ main_i 128)) 23) (< (+ main_i 131) (* 4 main_n)))} is VALID [2019-01-31 14:43:36,406 INFO L273 TraceCheckUtils]: 40: Hoare triple {38144#(or (< (* 4 main_n) (+ main_i 132)) (< (+ main_i 135) (* 4 main_n)) (= (select main_a (+ main_i 132)) 23))} assume i <= n * 4; {38144#(or (< (* 4 main_n) (+ main_i 132)) (< (+ main_i 135) (* 4 main_n)) (= (select main_a (+ main_i 132)) 23))} is VALID [2019-01-31 14:43:36,407 INFO L273 TraceCheckUtils]: 39: Hoare triple {38151#(or (< (+ main_i 139) (* 4 main_n)) (= (select main_a (+ main_i 136)) 23) (< (* 4 main_n) (+ main_i 136)))} assume a[i] != 23;i := i + 4; {38144#(or (< (* 4 main_n) (+ main_i 132)) (< (+ main_i 135) (* 4 main_n)) (= (select main_a (+ main_i 132)) 23))} is VALID [2019-01-31 14:43:36,408 INFO L273 TraceCheckUtils]: 38: Hoare triple {38151#(or (< (+ main_i 139) (* 4 main_n)) (= (select main_a (+ main_i 136)) 23) (< (* 4 main_n) (+ main_i 136)))} assume i <= n * 4; {38151#(or (< (+ main_i 139) (* 4 main_n)) (= (select main_a (+ main_i 136)) 23) (< (* 4 main_n) (+ main_i 136)))} is VALID [2019-01-31 14:43:36,409 INFO L273 TraceCheckUtils]: 37: Hoare triple {38158#(or (< (* 4 main_n) (+ main_i 140)) (< (+ main_i 143) (* 4 main_n)) (= (select main_a (+ main_i 140)) 23))} assume a[i] != 23;i := i + 4; {38151#(or (< (+ main_i 139) (* 4 main_n)) (= (select main_a (+ main_i 136)) 23) (< (* 4 main_n) (+ main_i 136)))} is VALID [2019-01-31 14:43:36,409 INFO L273 TraceCheckUtils]: 36: Hoare triple {38158#(or (< (* 4 main_n) (+ main_i 140)) (< (+ main_i 143) (* 4 main_n)) (= (select main_a (+ main_i 140)) 23))} assume i <= n * 4; {38158#(or (< (* 4 main_n) (+ main_i 140)) (< (+ main_i 143) (* 4 main_n)) (= (select main_a (+ main_i 140)) 23))} is VALID [2019-01-31 14:43:36,410 INFO L273 TraceCheckUtils]: 35: Hoare triple {38165#(or (= (select main_a (+ main_i 144)) 23) (< (+ main_i 147) (* 4 main_n)) (< (* 4 main_n) (+ main_i 144)))} assume a[i] != 23;i := i + 4; {38158#(or (< (* 4 main_n) (+ main_i 140)) (< (+ main_i 143) (* 4 main_n)) (= (select main_a (+ main_i 140)) 23))} is VALID [2019-01-31 14:43:36,411 INFO L273 TraceCheckUtils]: 34: Hoare triple {38165#(or (= (select main_a (+ main_i 144)) 23) (< (+ main_i 147) (* 4 main_n)) (< (* 4 main_n) (+ main_i 144)))} assume i <= n * 4; {38165#(or (= (select main_a (+ main_i 144)) 23) (< (+ main_i 147) (* 4 main_n)) (< (* 4 main_n) (+ main_i 144)))} is VALID [2019-01-31 14:43:36,412 INFO L273 TraceCheckUtils]: 33: Hoare triple {38172#(or (< (+ main_i 151) (* 4 main_n)) (< (* 4 main_n) (+ main_i 148)) (= (select main_a (+ main_i 148)) 23))} assume a[i] != 23;i := i + 4; {38165#(or (= (select main_a (+ main_i 144)) 23) (< (+ main_i 147) (* 4 main_n)) (< (* 4 main_n) (+ main_i 144)))} is VALID [2019-01-31 14:43:36,412 INFO L273 TraceCheckUtils]: 32: Hoare triple {38172#(or (< (+ main_i 151) (* 4 main_n)) (< (* 4 main_n) (+ main_i 148)) (= (select main_a (+ main_i 148)) 23))} assume i <= n * 4; {38172#(or (< (+ main_i 151) (* 4 main_n)) (< (* 4 main_n) (+ main_i 148)) (= (select main_a (+ main_i 148)) 23))} is VALID [2019-01-31 14:43:36,413 INFO L273 TraceCheckUtils]: 31: Hoare triple {38179#(or (= 23 (select main_a (+ main_i 152))) (< (+ main_i 155) (* 4 main_n)) (< (* 4 main_n) (+ main_i 152)))} assume a[i] != 23;i := i + 4; {38172#(or (< (+ main_i 151) (* 4 main_n)) (< (* 4 main_n) (+ main_i 148)) (= (select main_a (+ main_i 148)) 23))} is VALID [2019-01-31 14:43:36,414 INFO L273 TraceCheckUtils]: 30: Hoare triple {38179#(or (= 23 (select main_a (+ main_i 152))) (< (+ main_i 155) (* 4 main_n)) (< (* 4 main_n) (+ main_i 152)))} assume i <= n * 4; {38179#(or (= 23 (select main_a (+ main_i 152))) (< (+ main_i 155) (* 4 main_n)) (< (* 4 main_n) (+ main_i 152)))} is VALID [2019-01-31 14:43:36,415 INFO L273 TraceCheckUtils]: 29: Hoare triple {38186#(or (< (+ main_i 159) (* 4 main_n)) (= (select main_a (+ main_i 156)) 23) (< (* 4 main_n) (+ main_i 156)))} assume a[i] != 23;i := i + 4; {38179#(or (= 23 (select main_a (+ main_i 152))) (< (+ main_i 155) (* 4 main_n)) (< (* 4 main_n) (+ main_i 152)))} is VALID [2019-01-31 14:43:36,415 INFO L273 TraceCheckUtils]: 28: Hoare triple {38186#(or (< (+ main_i 159) (* 4 main_n)) (= (select main_a (+ main_i 156)) 23) (< (* 4 main_n) (+ main_i 156)))} assume i <= n * 4; {38186#(or (< (+ main_i 159) (* 4 main_n)) (= (select main_a (+ main_i 156)) 23) (< (* 4 main_n) (+ main_i 156)))} is VALID [2019-01-31 14:43:36,416 INFO L273 TraceCheckUtils]: 27: Hoare triple {38193#(or (< (+ main_i 163) (* 4 main_n)) (= (select main_a (+ main_i 160)) 23) (< (* 4 main_n) (+ main_i 160)))} assume a[i] != 23;i := i + 4; {38186#(or (< (+ main_i 159) (* 4 main_n)) (= (select main_a (+ main_i 156)) 23) (< (* 4 main_n) (+ main_i 156)))} is VALID [2019-01-31 14:43:36,417 INFO L273 TraceCheckUtils]: 26: Hoare triple {38193#(or (< (+ main_i 163) (* 4 main_n)) (= (select main_a (+ main_i 160)) 23) (< (* 4 main_n) (+ main_i 160)))} assume i <= n * 4; {38193#(or (< (+ main_i 163) (* 4 main_n)) (= (select main_a (+ main_i 160)) 23) (< (* 4 main_n) (+ main_i 160)))} is VALID [2019-01-31 14:43:36,418 INFO L273 TraceCheckUtils]: 25: Hoare triple {38200#(or (< (* 4 main_n) (+ main_i 164)) (< (+ main_i 167) (* 4 main_n)) (= (select main_a (+ main_i 164)) 23))} assume a[i] != 23;i := i + 4; {38193#(or (< (+ main_i 163) (* 4 main_n)) (= (select main_a (+ main_i 160)) 23) (< (* 4 main_n) (+ main_i 160)))} is VALID [2019-01-31 14:43:36,419 INFO L273 TraceCheckUtils]: 24: Hoare triple {38200#(or (< (* 4 main_n) (+ main_i 164)) (< (+ main_i 167) (* 4 main_n)) (= (select main_a (+ main_i 164)) 23))} assume i <= n * 4; {38200#(or (< (* 4 main_n) (+ main_i 164)) (< (+ main_i 167) (* 4 main_n)) (= (select main_a (+ main_i 164)) 23))} is VALID [2019-01-31 14:43:36,420 INFO L273 TraceCheckUtils]: 23: Hoare triple {38207#(or (= (select main_a (+ main_i 168)) 23) (< (* 4 main_n) (+ main_i 168)) (< (+ main_i 171) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {38200#(or (< (* 4 main_n) (+ main_i 164)) (< (+ main_i 167) (* 4 main_n)) (= (select main_a (+ main_i 164)) 23))} is VALID [2019-01-31 14:43:36,420 INFO L273 TraceCheckUtils]: 22: Hoare triple {38207#(or (= (select main_a (+ main_i 168)) 23) (< (* 4 main_n) (+ main_i 168)) (< (+ main_i 171) (* 4 main_n)))} assume i <= n * 4; {38207#(or (= (select main_a (+ main_i 168)) 23) (< (* 4 main_n) (+ main_i 168)) (< (+ main_i 171) (* 4 main_n)))} is VALID [2019-01-31 14:43:36,421 INFO L273 TraceCheckUtils]: 21: Hoare triple {38214#(or (< (* 4 main_n) (+ main_i 172)) (= (select main_a (+ main_i 172)) 23) (< (+ main_i 175) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {38207#(or (= (select main_a (+ main_i 168)) 23) (< (* 4 main_n) (+ main_i 168)) (< (+ main_i 171) (* 4 main_n)))} is VALID [2019-01-31 14:43:36,422 INFO L273 TraceCheckUtils]: 20: Hoare triple {38214#(or (< (* 4 main_n) (+ main_i 172)) (= (select main_a (+ main_i 172)) 23) (< (+ main_i 175) (* 4 main_n)))} assume i <= n * 4; {38214#(or (< (* 4 main_n) (+ main_i 172)) (= (select main_a (+ main_i 172)) 23) (< (+ main_i 175) (* 4 main_n)))} is VALID [2019-01-31 14:43:36,423 INFO L273 TraceCheckUtils]: 19: Hoare triple {38221#(or (= (select main_a (+ main_i 176)) 23) (< (+ main_i 179) (* 4 main_n)) (< (* 4 main_n) (+ main_i 176)))} assume a[i] != 23;i := i + 4; {38214#(or (< (* 4 main_n) (+ main_i 172)) (= (select main_a (+ main_i 172)) 23) (< (+ main_i 175) (* 4 main_n)))} is VALID [2019-01-31 14:43:36,423 INFO L273 TraceCheckUtils]: 18: Hoare triple {38221#(or (= (select main_a (+ main_i 176)) 23) (< (+ main_i 179) (* 4 main_n)) (< (* 4 main_n) (+ main_i 176)))} assume i <= n * 4; {38221#(or (= (select main_a (+ main_i 176)) 23) (< (+ main_i 179) (* 4 main_n)) (< (* 4 main_n) (+ main_i 176)))} is VALID [2019-01-31 14:43:36,424 INFO L273 TraceCheckUtils]: 17: Hoare triple {38228#(or (< (+ main_i 183) (* 4 main_n)) (= (select main_a (+ main_i 180)) 23) (< (* 4 main_n) (+ main_i 180)))} assume a[i] != 23;i := i + 4; {38221#(or (= (select main_a (+ main_i 176)) 23) (< (+ main_i 179) (* 4 main_n)) (< (* 4 main_n) (+ main_i 176)))} is VALID [2019-01-31 14:43:36,425 INFO L273 TraceCheckUtils]: 16: Hoare triple {38228#(or (< (+ main_i 183) (* 4 main_n)) (= (select main_a (+ main_i 180)) 23) (< (* 4 main_n) (+ main_i 180)))} assume i <= n * 4; {38228#(or (< (+ main_i 183) (* 4 main_n)) (= (select main_a (+ main_i 180)) 23) (< (* 4 main_n) (+ main_i 180)))} is VALID [2019-01-31 14:43:36,426 INFO L273 TraceCheckUtils]: 15: Hoare triple {38235#(or (= (select main_a (+ main_i 184)) 23) (< (+ main_i 187) (* 4 main_n)) (< (* 4 main_n) (+ main_i 184)))} assume a[i] != 23;i := i + 4; {38228#(or (< (+ main_i 183) (* 4 main_n)) (= (select main_a (+ main_i 180)) 23) (< (* 4 main_n) (+ main_i 180)))} is VALID [2019-01-31 14:43:36,426 INFO L273 TraceCheckUtils]: 14: Hoare triple {38235#(or (= (select main_a (+ main_i 184)) 23) (< (+ main_i 187) (* 4 main_n)) (< (* 4 main_n) (+ main_i 184)))} assume i <= n * 4; {38235#(or (= (select main_a (+ main_i 184)) 23) (< (+ main_i 187) (* 4 main_n)) (< (* 4 main_n) (+ main_i 184)))} is VALID [2019-01-31 14:43:36,427 INFO L273 TraceCheckUtils]: 13: Hoare triple {38242#(or (< (+ main_i 191) (* 4 main_n)) (< (* 4 main_n) (+ main_i 188)) (= 23 (select main_a (+ main_i 188))))} assume a[i] != 23;i := i + 4; {38235#(or (= (select main_a (+ main_i 184)) 23) (< (+ main_i 187) (* 4 main_n)) (< (* 4 main_n) (+ main_i 184)))} is VALID [2019-01-31 14:43:36,428 INFO L273 TraceCheckUtils]: 12: Hoare triple {38242#(or (< (+ main_i 191) (* 4 main_n)) (< (* 4 main_n) (+ main_i 188)) (= 23 (select main_a (+ main_i 188))))} assume i <= n * 4; {38242#(or (< (+ main_i 191) (* 4 main_n)) (< (* 4 main_n) (+ main_i 188)) (= 23 (select main_a (+ main_i 188))))} is VALID [2019-01-31 14:43:36,429 INFO L273 TraceCheckUtils]: 11: Hoare triple {38249#(or (= 23 (select main_a (+ main_i 192))) (< (+ main_i 195) (* 4 main_n)) (< (* 4 main_n) (+ main_i 192)))} assume a[i] != 23;i := i + 4; {38242#(or (< (+ main_i 191) (* 4 main_n)) (< (* 4 main_n) (+ main_i 188)) (= 23 (select main_a (+ main_i 188))))} is VALID [2019-01-31 14:43:36,429 INFO L273 TraceCheckUtils]: 10: Hoare triple {38249#(or (= 23 (select main_a (+ main_i 192))) (< (+ main_i 195) (* 4 main_n)) (< (* 4 main_n) (+ main_i 192)))} assume i <= n * 4; {38249#(or (= 23 (select main_a (+ main_i 192))) (< (+ main_i 195) (* 4 main_n)) (< (* 4 main_n) (+ main_i 192)))} is VALID [2019-01-31 14:43:36,431 INFO L273 TraceCheckUtils]: 9: Hoare triple {38256#(or (= 23 (select main_a (+ main_i 196))) (< (+ main_i 199) (* 4 main_n)) (< (* 4 main_n) (+ main_i 196)))} assume a[i] != 23;i := i + 4; {38249#(or (= 23 (select main_a (+ main_i 192))) (< (+ main_i 195) (* 4 main_n)) (< (* 4 main_n) (+ main_i 192)))} is VALID [2019-01-31 14:43:36,431 INFO L273 TraceCheckUtils]: 8: Hoare triple {38256#(or (= 23 (select main_a (+ main_i 196))) (< (+ main_i 199) (* 4 main_n)) (< (* 4 main_n) (+ main_i 196)))} assume i <= n * 4; {38256#(or (= 23 (select main_a (+ main_i 196))) (< (+ main_i 199) (* 4 main_n)) (< (* 4 main_n) (+ main_i 196)))} is VALID [2019-01-31 14:43:36,432 INFO L273 TraceCheckUtils]: 7: Hoare triple {38263#(or (< (* 4 main_n) (+ main_i 200)) (< (+ main_i 203) (* 4 main_n)) (= 23 (select main_a (+ main_i 200))))} assume a[i] != 23;i := i + 4; {38256#(or (= 23 (select main_a (+ main_i 196))) (< (+ main_i 199) (* 4 main_n)) (< (* 4 main_n) (+ main_i 196)))} is VALID [2019-01-31 14:43:36,433 INFO L273 TraceCheckUtils]: 6: Hoare triple {38263#(or (< (* 4 main_n) (+ main_i 200)) (< (+ main_i 203) (* 4 main_n)) (= 23 (select main_a (+ main_i 200))))} assume i <= n * 4; {38263#(or (< (* 4 main_n) (+ main_i 200)) (< (+ main_i 203) (* 4 main_n)) (= 23 (select main_a (+ main_i 200))))} is VALID [2019-01-31 14:43:36,434 INFO L273 TraceCheckUtils]: 5: Hoare triple {38270#(or (< (+ main_i 207) (* 4 main_n)) (< (* 4 main_n) (+ main_i 204)) (= (select main_a (+ main_i 204)) 23))} assume a[i] != 23;i := i + 4; {38263#(or (< (* 4 main_n) (+ main_i 200)) (< (+ main_i 203) (* 4 main_n)) (= 23 (select main_a (+ main_i 200))))} is VALID [2019-01-31 14:43:36,434 INFO L273 TraceCheckUtils]: 4: Hoare triple {38270#(or (< (+ main_i 207) (* 4 main_n)) (< (* 4 main_n) (+ main_i 204)) (= (select main_a (+ main_i 204)) 23))} assume i <= n * 4; {38270#(or (< (+ main_i 207) (* 4 main_n)) (< (* 4 main_n) (+ main_i 204)) (= (select main_a (+ main_i 204)) 23))} is VALID [2019-01-31 14:43:36,435 INFO L273 TraceCheckUtils]: 3: Hoare triple {38277#(or (= (select main_a (+ main_i 208)) 23) (< (+ main_i 211) (* 4 main_n)) (< (* 4 main_n) (+ main_i 208)))} assume a[i] != 23;i := i + 4; {38270#(or (< (+ main_i 207) (* 4 main_n)) (< (* 4 main_n) (+ main_i 204)) (= (select main_a (+ main_i 204)) 23))} is VALID [2019-01-31 14:43:36,436 INFO L273 TraceCheckUtils]: 2: Hoare triple {38277#(or (= (select main_a (+ main_i 208)) 23) (< (+ main_i 211) (* 4 main_n)) (< (* 4 main_n) (+ main_i 208)))} assume i <= n * 4; {38277#(or (= (select main_a (+ main_i 208)) 23) (< (+ main_i 211) (* 4 main_n)) (< (* 4 main_n) (+ main_i 208)))} is VALID [2019-01-31 14:43:36,437 INFO L273 TraceCheckUtils]: 1: Hoare triple {38284#(or (< (* 4 main_n) (+ main_i 212)) (= 23 (select main_a (+ main_i 212))) (< (+ main_i 215) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {38277#(or (= (select main_a (+ main_i 208)) 23) (< (+ main_i 211) (* 4 main_n)) (< (* 4 main_n) (+ main_i 208)))} is VALID [2019-01-31 14:43:36,438 INFO L273 TraceCheckUtils]: 0: Hoare triple {37468#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {38284#(or (< (* 4 main_n) (+ main_i 212)) (= 23 (select main_a (+ main_i 212))) (< (+ main_i 215) (* 4 main_n)))} is VALID [2019-01-31 14:43:36,483 INFO L134 CoverageAnalysis]: Checked inductivity of 2862 backedges. 0 proven. 2862 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-31 14:43:36,503 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-01-31 14:43:36,503 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [56, 56, 56] total 167 [2019-01-31 14:43:36,503 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-01-31 14:43:36,503 INFO L78 Accepts]: Start accepts. Automaton has 113 states. Word has length 109 [2019-01-31 14:43:36,504 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-01-31 14:43:36,504 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 113 states. [2019-01-31 14:43:36,767 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 217 edges. 217 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-01-31 14:43:36,767 INFO L459 AbstractCegarLoop]: Interpolant automaton has 113 states [2019-01-31 14:43:36,768 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 113 interpolants. [2019-01-31 14:43:36,769 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3424, Invalid=24968, Unknown=0, NotChecked=0, Total=28392 [2019-01-31 14:43:36,769 INFO L87 Difference]: Start difference. First operand 110 states and 110 transitions. Second operand 113 states. [2019-01-31 14:43:54,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 14:43:54,777 INFO L93 Difference]: Finished difference Result 114 states and 114 transitions. [2019-01-31 14:43:54,778 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2019-01-31 14:43:54,778 INFO L78 Accepts]: Start accepts. Automaton has 113 states. Word has length 109 [2019-01-31 14:43:54,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-31 14:43:54,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 113 states. [2019-01-31 14:43:54,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 114 transitions. [2019-01-31 14:43:54,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 113 states. [2019-01-31 14:43:54,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 114 transitions. [2019-01-31 14:43:54,780 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 58 states and 114 transitions. [2019-01-31 14:43:54,901 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 114 edges. 114 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-01-31 14:43:54,903 INFO L225 Difference]: With dead ends: 114 [2019-01-31 14:43:54,903 INFO L226 Difference]: Without dead ends: 113 [2019-01-31 14:43:54,904 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 272 GetRequests, 104 SyntacticMatches, 1 SemanticMatches, 167 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6380 ImplicationChecksByTransitivity, 15.6s TimeCoverageRelationStatistics Valid=3424, Invalid=24968, Unknown=0, NotChecked=0, Total=28392 [2019-01-31 14:43:54,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2019-01-31 14:43:55,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 112. [2019-01-31 14:43:55,006 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-01-31 14:43:55,007 INFO L82 GeneralOperation]: Start isEquivalent. First operand 113 states. Second operand 112 states. [2019-01-31 14:43:55,007 INFO L74 IsIncluded]: Start isIncluded. First operand 113 states. Second operand 112 states. [2019-01-31 14:43:55,007 INFO L87 Difference]: Start difference. First operand 113 states. Second operand 112 states. [2019-01-31 14:43:55,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 14:43:55,009 INFO L93 Difference]: Finished difference Result 113 states and 113 transitions. [2019-01-31 14:43:55,009 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 113 transitions. [2019-01-31 14:43:55,009 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-31 14:43:55,009 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-01-31 14:43:55,009 INFO L74 IsIncluded]: Start isIncluded. First operand 112 states. Second operand 113 states. [2019-01-31 14:43:55,009 INFO L87 Difference]: Start difference. First operand 112 states. Second operand 113 states. [2019-01-31 14:43:55,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 14:43:55,010 INFO L93 Difference]: Finished difference Result 113 states and 113 transitions. [2019-01-31 14:43:55,011 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 113 transitions. [2019-01-31 14:43:55,011 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-31 14:43:55,011 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-01-31 14:43:55,011 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-01-31 14:43:55,011 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-01-31 14:43:55,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 112 states. [2019-01-31 14:43:55,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 112 transitions. [2019-01-31 14:43:55,012 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 112 transitions. Word has length 109 [2019-01-31 14:43:55,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-31 14:43:55,012 INFO L480 AbstractCegarLoop]: Abstraction has 112 states and 112 transitions. [2019-01-31 14:43:55,012 INFO L481 AbstractCegarLoop]: Interpolant automaton has 113 states. [2019-01-31 14:43:55,013 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 112 transitions. [2019-01-31 14:43:55,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2019-01-31 14:43:55,013 INFO L394 BasicCegarLoop]: Found error trace [2019-01-31 14:43:55,013 INFO L402 BasicCegarLoop]: trace histogram [55, 54, 1, 1] [2019-01-31 14:43:55,013 INFO L423 AbstractCegarLoop]: === Iteration 55 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-01-31 14:43:55,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-31 14:43:55,013 INFO L82 PathProgramCache]: Analyzing trace with hash -1262778548, now seen corresponding path program 54 times [2019-01-31 14:43:55,013 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-01-31 14:43:55,014 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-31 14:43:55,014 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-01-31 14:43:55,014 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-31 14:43:55,014 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-01-31 14:43:55,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-31 14:43:55,479 WARN L181 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 18 [2019-01-31 14:43:59,161 INFO L273 TraceCheckUtils]: 0: Hoare triple {38850#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {38852#(and (or (<= main_i 0) (<= main_n 54)) (or (and (<= 0 main_i) (= 23 (select main_a (* 4 main_n)))) (< 54 main_n)))} is VALID [2019-01-31 14:43:59,162 INFO L273 TraceCheckUtils]: 1: Hoare triple {38852#(and (or (<= main_i 0) (<= main_n 54)) (or (and (<= 0 main_i) (= 23 (select main_a (* 4 main_n)))) (< 54 main_n)))} assume a[i] != 23;i := i + 4; {38853#(and (or (< 54 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i))) (or (<= main_i 4) (<= main_n 54)))} is VALID [2019-01-31 14:43:59,163 INFO L273 TraceCheckUtils]: 2: Hoare triple {38853#(and (or (< 54 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i))) (or (<= main_i 4) (<= main_n 54)))} assume i <= n * 4; {38853#(and (or (< 54 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i))) (or (<= main_i 4) (<= main_n 54)))} is VALID [2019-01-31 14:43:59,164 INFO L273 TraceCheckUtils]: 3: Hoare triple {38853#(and (or (< 54 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i))) (or (<= main_i 4) (<= main_n 54)))} assume a[i] != 23;i := i + 4; {38854#(and (or (<= main_i 8) (<= main_n 54)) (or (< 54 main_n) (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:43:59,165 INFO L273 TraceCheckUtils]: 4: Hoare triple {38854#(and (or (<= main_i 8) (<= main_n 54)) (or (< 54 main_n) (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {38854#(and (or (<= main_i 8) (<= main_n 54)) (or (< 54 main_n) (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:43:59,166 INFO L273 TraceCheckUtils]: 5: Hoare triple {38854#(and (or (<= main_i 8) (<= main_n 54)) (or (< 54 main_n) (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {38855#(and (or (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n)))) (< 54 main_n)) (or (<= main_n 54) (<= main_i 12)))} is VALID [2019-01-31 14:43:59,167 INFO L273 TraceCheckUtils]: 6: Hoare triple {38855#(and (or (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n)))) (< 54 main_n)) (or (<= main_n 54) (<= main_i 12)))} assume i <= n * 4; {38855#(and (or (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n)))) (< 54 main_n)) (or (<= main_n 54) (<= main_i 12)))} is VALID [2019-01-31 14:43:59,168 INFO L273 TraceCheckUtils]: 7: Hoare triple {38855#(and (or (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n)))) (< 54 main_n)) (or (<= main_n 54) (<= main_i 12)))} assume a[i] != 23;i := i + 4; {38856#(and (or (<= main_i 16) (<= main_n 54)) (or (< 54 main_n) (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:43:59,169 INFO L273 TraceCheckUtils]: 8: Hoare triple {38856#(and (or (<= main_i 16) (<= main_n 54)) (or (< 54 main_n) (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {38856#(and (or (<= main_i 16) (<= main_n 54)) (or (< 54 main_n) (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:43:59,170 INFO L273 TraceCheckUtils]: 9: Hoare triple {38856#(and (or (<= main_i 16) (<= main_n 54)) (or (< 54 main_n) (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {38857#(and (or (<= main_i 20) (<= main_n 54)) (or (< 54 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:43:59,171 INFO L273 TraceCheckUtils]: 10: Hoare triple {38857#(and (or (<= main_i 20) (<= main_n 54)) (or (< 54 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {38857#(and (or (<= main_i 20) (<= main_n 54)) (or (< 54 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:43:59,172 INFO L273 TraceCheckUtils]: 11: Hoare triple {38857#(and (or (<= main_i 20) (<= main_n 54)) (or (< 54 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {38858#(and (or (<= main_i 24) (<= main_n 54)) (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 54 main_n)))} is VALID [2019-01-31 14:43:59,173 INFO L273 TraceCheckUtils]: 12: Hoare triple {38858#(and (or (<= main_i 24) (<= main_n 54)) (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 54 main_n)))} assume i <= n * 4; {38858#(and (or (<= main_i 24) (<= main_n 54)) (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 54 main_n)))} is VALID [2019-01-31 14:43:59,174 INFO L273 TraceCheckUtils]: 13: Hoare triple {38858#(and (or (<= main_i 24) (<= main_n 54)) (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 54 main_n)))} assume a[i] != 23;i := i + 4; {38859#(and (or (<= main_i 28) (<= main_n 54)) (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 54 main_n)))} is VALID [2019-01-31 14:43:59,175 INFO L273 TraceCheckUtils]: 14: Hoare triple {38859#(and (or (<= main_i 28) (<= main_n 54)) (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 54 main_n)))} assume i <= n * 4; {38859#(and (or (<= main_i 28) (<= main_n 54)) (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 54 main_n)))} is VALID [2019-01-31 14:43:59,176 INFO L273 TraceCheckUtils]: 15: Hoare triple {38859#(and (or (<= main_i 28) (<= main_n 54)) (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 54 main_n)))} assume a[i] != 23;i := i + 4; {38860#(and (or (<= main_i 32) (<= main_n 54)) (or (< 54 main_n) (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:43:59,177 INFO L273 TraceCheckUtils]: 16: Hoare triple {38860#(and (or (<= main_i 32) (<= main_n 54)) (or (< 54 main_n) (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {38860#(and (or (<= main_i 32) (<= main_n 54)) (or (< 54 main_n) (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:43:59,179 INFO L273 TraceCheckUtils]: 17: Hoare triple {38860#(and (or (<= main_i 32) (<= main_n 54)) (or (< 54 main_n) (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {38861#(and (or (<= main_i 36) (<= main_n 54)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i)) (< 54 main_n)))} is VALID [2019-01-31 14:43:59,181 INFO L273 TraceCheckUtils]: 18: Hoare triple {38861#(and (or (<= main_i 36) (<= main_n 54)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i)) (< 54 main_n)))} assume i <= n * 4; {38861#(and (or (<= main_i 36) (<= main_n 54)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i)) (< 54 main_n)))} is VALID [2019-01-31 14:43:59,182 INFO L273 TraceCheckUtils]: 19: Hoare triple {38861#(and (or (<= main_i 36) (<= main_n 54)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i)) (< 54 main_n)))} assume a[i] != 23;i := i + 4; {38862#(and (or (<= main_i 40) (<= main_n 54)) (or (< 54 main_n) (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:43:59,183 INFO L273 TraceCheckUtils]: 20: Hoare triple {38862#(and (or (<= main_i 40) (<= main_n 54)) (or (< 54 main_n) (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {38862#(and (or (<= main_i 40) (<= main_n 54)) (or (< 54 main_n) (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:43:59,183 INFO L273 TraceCheckUtils]: 21: Hoare triple {38862#(and (or (<= main_i 40) (<= main_n 54)) (or (< 54 main_n) (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {38863#(and (or (< 54 main_n) (and (<= 44 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 54) (<= main_i 44)))} is VALID [2019-01-31 14:43:59,185 INFO L273 TraceCheckUtils]: 22: Hoare triple {38863#(and (or (< 54 main_n) (and (<= 44 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 54) (<= main_i 44)))} assume i <= n * 4; {38863#(and (or (< 54 main_n) (and (<= 44 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 54) (<= main_i 44)))} is VALID [2019-01-31 14:43:59,186 INFO L273 TraceCheckUtils]: 23: Hoare triple {38863#(and (or (< 54 main_n) (and (<= 44 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 54) (<= main_i 44)))} assume a[i] != 23;i := i + 4; {38864#(and (or (<= main_i 48) (<= main_n 54)) (or (and (<= 48 main_i) (= 23 (select main_a (* 4 main_n)))) (< 54 main_n)))} is VALID [2019-01-31 14:43:59,187 INFO L273 TraceCheckUtils]: 24: Hoare triple {38864#(and (or (<= main_i 48) (<= main_n 54)) (or (and (<= 48 main_i) (= 23 (select main_a (* 4 main_n)))) (< 54 main_n)))} assume i <= n * 4; {38864#(and (or (<= main_i 48) (<= main_n 54)) (or (and (<= 48 main_i) (= 23 (select main_a (* 4 main_n)))) (< 54 main_n)))} is VALID [2019-01-31 14:43:59,189 INFO L273 TraceCheckUtils]: 25: Hoare triple {38864#(and (or (<= main_i 48) (<= main_n 54)) (or (and (<= 48 main_i) (= 23 (select main_a (* 4 main_n)))) (< 54 main_n)))} assume a[i] != 23;i := i + 4; {38865#(and (or (<= main_i 52) (<= main_n 54)) (or (and (<= 52 main_i) (= 23 (select main_a (* 4 main_n)))) (< 54 main_n)))} is VALID [2019-01-31 14:43:59,190 INFO L273 TraceCheckUtils]: 26: Hoare triple {38865#(and (or (<= main_i 52) (<= main_n 54)) (or (and (<= 52 main_i) (= 23 (select main_a (* 4 main_n)))) (< 54 main_n)))} assume i <= n * 4; {38865#(and (or (<= main_i 52) (<= main_n 54)) (or (and (<= 52 main_i) (= 23 (select main_a (* 4 main_n)))) (< 54 main_n)))} is VALID [2019-01-31 14:43:59,191 INFO L273 TraceCheckUtils]: 27: Hoare triple {38865#(and (or (<= main_i 52) (<= main_n 54)) (or (and (<= 52 main_i) (= 23 (select main_a (* 4 main_n)))) (< 54 main_n)))} assume a[i] != 23;i := i + 4; {38866#(and (or (<= main_i 56) (<= main_n 54)) (or (< 54 main_n) (and (<= 56 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:43:59,191 INFO L273 TraceCheckUtils]: 28: Hoare triple {38866#(and (or (<= main_i 56) (<= main_n 54)) (or (< 54 main_n) (and (<= 56 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {38866#(and (or (<= main_i 56) (<= main_n 54)) (or (< 54 main_n) (and (<= 56 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:43:59,193 INFO L273 TraceCheckUtils]: 29: Hoare triple {38866#(and (or (<= main_i 56) (<= main_n 54)) (or (< 54 main_n) (and (<= 56 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {38867#(and (or (< 54 main_n) (and (<= 60 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 60) (<= main_n 54)))} is VALID [2019-01-31 14:43:59,194 INFO L273 TraceCheckUtils]: 30: Hoare triple {38867#(and (or (< 54 main_n) (and (<= 60 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 60) (<= main_n 54)))} assume i <= n * 4; {38867#(and (or (< 54 main_n) (and (<= 60 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 60) (<= main_n 54)))} is VALID [2019-01-31 14:43:59,195 INFO L273 TraceCheckUtils]: 31: Hoare triple {38867#(and (or (< 54 main_n) (and (<= 60 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 60) (<= main_n 54)))} assume a[i] != 23;i := i + 4; {38868#(and (or (<= main_i 64) (<= main_n 54)) (or (and (<= 64 main_i) (= 23 (select main_a (* 4 main_n)))) (< 54 main_n)))} is VALID [2019-01-31 14:43:59,195 INFO L273 TraceCheckUtils]: 32: Hoare triple {38868#(and (or (<= main_i 64) (<= main_n 54)) (or (and (<= 64 main_i) (= 23 (select main_a (* 4 main_n)))) (< 54 main_n)))} assume i <= n * 4; {38868#(and (or (<= main_i 64) (<= main_n 54)) (or (and (<= 64 main_i) (= 23 (select main_a (* 4 main_n)))) (< 54 main_n)))} is VALID [2019-01-31 14:43:59,197 INFO L273 TraceCheckUtils]: 33: Hoare triple {38868#(and (or (<= main_i 64) (<= main_n 54)) (or (and (<= 64 main_i) (= 23 (select main_a (* 4 main_n)))) (< 54 main_n)))} assume a[i] != 23;i := i + 4; {38869#(and (or (<= main_n 54) (<= main_i 68)) (or (and (<= 68 main_i) (= 23 (select main_a (* 4 main_n)))) (< 54 main_n)))} is VALID [2019-01-31 14:43:59,197 INFO L273 TraceCheckUtils]: 34: Hoare triple {38869#(and (or (<= main_n 54) (<= main_i 68)) (or (and (<= 68 main_i) (= 23 (select main_a (* 4 main_n)))) (< 54 main_n)))} assume i <= n * 4; {38869#(and (or (<= main_n 54) (<= main_i 68)) (or (and (<= 68 main_i) (= 23 (select main_a (* 4 main_n)))) (< 54 main_n)))} is VALID [2019-01-31 14:43:59,199 INFO L273 TraceCheckUtils]: 35: Hoare triple {38869#(and (or (<= main_n 54) (<= main_i 68)) (or (and (<= 68 main_i) (= 23 (select main_a (* 4 main_n)))) (< 54 main_n)))} assume a[i] != 23;i := i + 4; {38870#(and (or (and (<= 72 main_i) (= 23 (select main_a (* 4 main_n)))) (< 54 main_n)) (or (<= main_i 72) (<= main_n 54)))} is VALID [2019-01-31 14:43:59,201 INFO L273 TraceCheckUtils]: 36: Hoare triple {38870#(and (or (and (<= 72 main_i) (= 23 (select main_a (* 4 main_n)))) (< 54 main_n)) (or (<= main_i 72) (<= main_n 54)))} assume i <= n * 4; {38870#(and (or (and (<= 72 main_i) (= 23 (select main_a (* 4 main_n)))) (< 54 main_n)) (or (<= main_i 72) (<= main_n 54)))} is VALID [2019-01-31 14:43:59,203 INFO L273 TraceCheckUtils]: 37: Hoare triple {38870#(and (or (and (<= 72 main_i) (= 23 (select main_a (* 4 main_n)))) (< 54 main_n)) (or (<= main_i 72) (<= main_n 54)))} assume a[i] != 23;i := i + 4; {38871#(and (or (and (<= 76 main_i) (= 23 (select main_a (* 4 main_n)))) (< 54 main_n)) (or (<= main_i 76) (<= main_n 54)))} is VALID [2019-01-31 14:43:59,203 INFO L273 TraceCheckUtils]: 38: Hoare triple {38871#(and (or (and (<= 76 main_i) (= 23 (select main_a (* 4 main_n)))) (< 54 main_n)) (or (<= main_i 76) (<= main_n 54)))} assume i <= n * 4; {38871#(and (or (and (<= 76 main_i) (= 23 (select main_a (* 4 main_n)))) (< 54 main_n)) (or (<= main_i 76) (<= main_n 54)))} is VALID [2019-01-31 14:43:59,204 INFO L273 TraceCheckUtils]: 39: Hoare triple {38871#(and (or (and (<= 76 main_i) (= 23 (select main_a (* 4 main_n)))) (< 54 main_n)) (or (<= main_i 76) (<= main_n 54)))} assume a[i] != 23;i := i + 4; {38872#(and (or (<= main_i 80) (<= main_n 54)) (or (and (<= 80 main_i) (= 23 (select main_a (* 4 main_n)))) (< 54 main_n)))} is VALID [2019-01-31 14:43:59,204 INFO L273 TraceCheckUtils]: 40: Hoare triple {38872#(and (or (<= main_i 80) (<= main_n 54)) (or (and (<= 80 main_i) (= 23 (select main_a (* 4 main_n)))) (< 54 main_n)))} assume i <= n * 4; {38872#(and (or (<= main_i 80) (<= main_n 54)) (or (and (<= 80 main_i) (= 23 (select main_a (* 4 main_n)))) (< 54 main_n)))} is VALID [2019-01-31 14:43:59,206 INFO L273 TraceCheckUtils]: 41: Hoare triple {38872#(and (or (<= main_i 80) (<= main_n 54)) (or (and (<= 80 main_i) (= 23 (select main_a (* 4 main_n)))) (< 54 main_n)))} assume a[i] != 23;i := i + 4; {38873#(and (or (<= main_i 84) (<= main_n 54)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 84 main_i)) (< 54 main_n)))} is VALID [2019-01-31 14:43:59,207 INFO L273 TraceCheckUtils]: 42: Hoare triple {38873#(and (or (<= main_i 84) (<= main_n 54)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 84 main_i)) (< 54 main_n)))} assume i <= n * 4; {38873#(and (or (<= main_i 84) (<= main_n 54)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 84 main_i)) (< 54 main_n)))} is VALID [2019-01-31 14:43:59,208 INFO L273 TraceCheckUtils]: 43: Hoare triple {38873#(and (or (<= main_i 84) (<= main_n 54)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 84 main_i)) (< 54 main_n)))} assume a[i] != 23;i := i + 4; {38874#(and (or (< 54 main_n) (and (<= 88 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 88) (<= main_n 54)))} is VALID [2019-01-31 14:43:59,209 INFO L273 TraceCheckUtils]: 44: Hoare triple {38874#(and (or (< 54 main_n) (and (<= 88 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 88) (<= main_n 54)))} assume i <= n * 4; {38874#(and (or (< 54 main_n) (and (<= 88 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 88) (<= main_n 54)))} is VALID [2019-01-31 14:43:59,210 INFO L273 TraceCheckUtils]: 45: Hoare triple {38874#(and (or (< 54 main_n) (and (<= 88 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 88) (<= main_n 54)))} assume a[i] != 23;i := i + 4; {38875#(and (or (<= main_i 92) (<= main_n 54)) (or (< 54 main_n) (and (<= 92 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:43:59,211 INFO L273 TraceCheckUtils]: 46: Hoare triple {38875#(and (or (<= main_i 92) (<= main_n 54)) (or (< 54 main_n) (and (<= 92 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {38875#(and (or (<= main_i 92) (<= main_n 54)) (or (< 54 main_n) (and (<= 92 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:43:59,212 INFO L273 TraceCheckUtils]: 47: Hoare triple {38875#(and (or (<= main_i 92) (<= main_n 54)) (or (< 54 main_n) (and (<= 92 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {38876#(and (or (and (<= 96 main_i) (= 23 (select main_a (* 4 main_n)))) (< 54 main_n)) (or (<= main_i 96) (<= main_n 54)))} is VALID [2019-01-31 14:43:59,213 INFO L273 TraceCheckUtils]: 48: Hoare triple {38876#(and (or (and (<= 96 main_i) (= 23 (select main_a (* 4 main_n)))) (< 54 main_n)) (or (<= main_i 96) (<= main_n 54)))} assume i <= n * 4; {38876#(and (or (and (<= 96 main_i) (= 23 (select main_a (* 4 main_n)))) (< 54 main_n)) (or (<= main_i 96) (<= main_n 54)))} is VALID [2019-01-31 14:43:59,214 INFO L273 TraceCheckUtils]: 49: Hoare triple {38876#(and (or (and (<= 96 main_i) (= 23 (select main_a (* 4 main_n)))) (< 54 main_n)) (or (<= main_i 96) (<= main_n 54)))} assume a[i] != 23;i := i + 4; {38877#(and (or (<= main_i 100) (<= main_n 54)) (or (and (<= 100 main_i) (= 23 (select main_a (* 4 main_n)))) (< 54 main_n)))} is VALID [2019-01-31 14:43:59,215 INFO L273 TraceCheckUtils]: 50: Hoare triple {38877#(and (or (<= main_i 100) (<= main_n 54)) (or (and (<= 100 main_i) (= 23 (select main_a (* 4 main_n)))) (< 54 main_n)))} assume i <= n * 4; {38877#(and (or (<= main_i 100) (<= main_n 54)) (or (and (<= 100 main_i) (= 23 (select main_a (* 4 main_n)))) (< 54 main_n)))} is VALID [2019-01-31 14:43:59,216 INFO L273 TraceCheckUtils]: 51: Hoare triple {38877#(and (or (<= main_i 100) (<= main_n 54)) (or (and (<= 100 main_i) (= 23 (select main_a (* 4 main_n)))) (< 54 main_n)))} assume a[i] != 23;i := i + 4; {38878#(and (or (<= main_i 104) (<= main_n 54)) (or (and (<= 104 main_i) (= 23 (select main_a (* 4 main_n)))) (< 54 main_n)))} is VALID [2019-01-31 14:43:59,217 INFO L273 TraceCheckUtils]: 52: Hoare triple {38878#(and (or (<= main_i 104) (<= main_n 54)) (or (and (<= 104 main_i) (= 23 (select main_a (* 4 main_n)))) (< 54 main_n)))} assume i <= n * 4; {38878#(and (or (<= main_i 104) (<= main_n 54)) (or (and (<= 104 main_i) (= 23 (select main_a (* 4 main_n)))) (< 54 main_n)))} is VALID [2019-01-31 14:43:59,218 INFO L273 TraceCheckUtils]: 53: Hoare triple {38878#(and (or (<= main_i 104) (<= main_n 54)) (or (and (<= 104 main_i) (= 23 (select main_a (* 4 main_n)))) (< 54 main_n)))} assume a[i] != 23;i := i + 4; {38879#(and (or (< 54 main_n) (and (<= 108 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 108) (<= main_n 54)))} is VALID [2019-01-31 14:43:59,219 INFO L273 TraceCheckUtils]: 54: Hoare triple {38879#(and (or (< 54 main_n) (and (<= 108 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 108) (<= main_n 54)))} assume i <= n * 4; {38879#(and (or (< 54 main_n) (and (<= 108 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 108) (<= main_n 54)))} is VALID [2019-01-31 14:43:59,220 INFO L273 TraceCheckUtils]: 55: Hoare triple {38879#(and (or (< 54 main_n) (and (<= 108 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 108) (<= main_n 54)))} assume a[i] != 23;i := i + 4; {38880#(and (or (< 54 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 112 main_i))) (or (<= main_n 54) (<= main_i 112)))} is VALID [2019-01-31 14:43:59,221 INFO L273 TraceCheckUtils]: 56: Hoare triple {38880#(and (or (< 54 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 112 main_i))) (or (<= main_n 54) (<= main_i 112)))} assume i <= n * 4; {38880#(and (or (< 54 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 112 main_i))) (or (<= main_n 54) (<= main_i 112)))} is VALID [2019-01-31 14:43:59,222 INFO L273 TraceCheckUtils]: 57: Hoare triple {38880#(and (or (< 54 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 112 main_i))) (or (<= main_n 54) (<= main_i 112)))} assume a[i] != 23;i := i + 4; {38881#(and (or (<= main_i 116) (<= main_n 54)) (or (< 54 main_n) (and (<= 116 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:43:59,223 INFO L273 TraceCheckUtils]: 58: Hoare triple {38881#(and (or (<= main_i 116) (<= main_n 54)) (or (< 54 main_n) (and (<= 116 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {38881#(and (or (<= main_i 116) (<= main_n 54)) (or (< 54 main_n) (and (<= 116 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:43:59,224 INFO L273 TraceCheckUtils]: 59: Hoare triple {38881#(and (or (<= main_i 116) (<= main_n 54)) (or (< 54 main_n) (and (<= 116 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {38882#(and (or (< 54 main_n) (and (<= 120 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 120) (<= main_n 54)))} is VALID [2019-01-31 14:43:59,225 INFO L273 TraceCheckUtils]: 60: Hoare triple {38882#(and (or (< 54 main_n) (and (<= 120 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 120) (<= main_n 54)))} assume i <= n * 4; {38882#(and (or (< 54 main_n) (and (<= 120 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 120) (<= main_n 54)))} is VALID [2019-01-31 14:43:59,226 INFO L273 TraceCheckUtils]: 61: Hoare triple {38882#(and (or (< 54 main_n) (and (<= 120 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 120) (<= main_n 54)))} assume a[i] != 23;i := i + 4; {38883#(and (or (<= main_i 124) (<= main_n 54)) (or (and (<= 124 main_i) (= 23 (select main_a (* 4 main_n)))) (< 54 main_n)))} is VALID [2019-01-31 14:43:59,227 INFO L273 TraceCheckUtils]: 62: Hoare triple {38883#(and (or (<= main_i 124) (<= main_n 54)) (or (and (<= 124 main_i) (= 23 (select main_a (* 4 main_n)))) (< 54 main_n)))} assume i <= n * 4; {38883#(and (or (<= main_i 124) (<= main_n 54)) (or (and (<= 124 main_i) (= 23 (select main_a (* 4 main_n)))) (< 54 main_n)))} is VALID [2019-01-31 14:43:59,228 INFO L273 TraceCheckUtils]: 63: Hoare triple {38883#(and (or (<= main_i 124) (<= main_n 54)) (or (and (<= 124 main_i) (= 23 (select main_a (* 4 main_n)))) (< 54 main_n)))} assume a[i] != 23;i := i + 4; {38884#(and (or (<= main_i 128) (<= main_n 54)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 128 main_i)) (< 54 main_n)))} is VALID [2019-01-31 14:43:59,229 INFO L273 TraceCheckUtils]: 64: Hoare triple {38884#(and (or (<= main_i 128) (<= main_n 54)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 128 main_i)) (< 54 main_n)))} assume i <= n * 4; {38884#(and (or (<= main_i 128) (<= main_n 54)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 128 main_i)) (< 54 main_n)))} is VALID [2019-01-31 14:43:59,230 INFO L273 TraceCheckUtils]: 65: Hoare triple {38884#(and (or (<= main_i 128) (<= main_n 54)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 128 main_i)) (< 54 main_n)))} assume a[i] != 23;i := i + 4; {38885#(and (or (<= main_i 132) (<= main_n 54)) (or (< 54 main_n) (and (<= 132 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:43:59,231 INFO L273 TraceCheckUtils]: 66: Hoare triple {38885#(and (or (<= main_i 132) (<= main_n 54)) (or (< 54 main_n) (and (<= 132 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {38885#(and (or (<= main_i 132) (<= main_n 54)) (or (< 54 main_n) (and (<= 132 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:43:59,232 INFO L273 TraceCheckUtils]: 67: Hoare triple {38885#(and (or (<= main_i 132) (<= main_n 54)) (or (< 54 main_n) (and (<= 132 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {38886#(and (or (<= main_i 136) (<= main_n 54)) (or (< 54 main_n) (and (<= 136 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:43:59,233 INFO L273 TraceCheckUtils]: 68: Hoare triple {38886#(and (or (<= main_i 136) (<= main_n 54)) (or (< 54 main_n) (and (<= 136 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {38886#(and (or (<= main_i 136) (<= main_n 54)) (or (< 54 main_n) (and (<= 136 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:43:59,234 INFO L273 TraceCheckUtils]: 69: Hoare triple {38886#(and (or (<= main_i 136) (<= main_n 54)) (or (< 54 main_n) (and (<= 136 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {38887#(and (or (<= main_i 140) (<= main_n 54)) (or (< 54 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 140 main_i))))} is VALID [2019-01-31 14:43:59,235 INFO L273 TraceCheckUtils]: 70: Hoare triple {38887#(and (or (<= main_i 140) (<= main_n 54)) (or (< 54 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 140 main_i))))} assume i <= n * 4; {38887#(and (or (<= main_i 140) (<= main_n 54)) (or (< 54 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 140 main_i))))} is VALID [2019-01-31 14:43:59,236 INFO L273 TraceCheckUtils]: 71: Hoare triple {38887#(and (or (<= main_i 140) (<= main_n 54)) (or (< 54 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 140 main_i))))} assume a[i] != 23;i := i + 4; {38888#(and (or (<= main_n 54) (<= main_i 144)) (or (< 54 main_n) (and (<= 144 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:43:59,237 INFO L273 TraceCheckUtils]: 72: Hoare triple {38888#(and (or (<= main_n 54) (<= main_i 144)) (or (< 54 main_n) (and (<= 144 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {38888#(and (or (<= main_n 54) (<= main_i 144)) (or (< 54 main_n) (and (<= 144 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:43:59,238 INFO L273 TraceCheckUtils]: 73: Hoare triple {38888#(and (or (<= main_n 54) (<= main_i 144)) (or (< 54 main_n) (and (<= 144 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {38889#(and (or (<= main_i 148) (<= main_n 54)) (or (< 54 main_n) (and (<= 148 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:43:59,239 INFO L273 TraceCheckUtils]: 74: Hoare triple {38889#(and (or (<= main_i 148) (<= main_n 54)) (or (< 54 main_n) (and (<= 148 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {38889#(and (or (<= main_i 148) (<= main_n 54)) (or (< 54 main_n) (and (<= 148 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-01-31 14:43:59,240 INFO L273 TraceCheckUtils]: 75: Hoare triple {38889#(and (or (<= main_i 148) (<= main_n 54)) (or (< 54 main_n) (and (<= 148 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {38890#(and (or (and (<= 152 main_i) (= 23 (select main_a (* 4 main_n)))) (< 54 main_n)) (or (<= main_i 152) (<= main_n 54)))} is VALID [2019-01-31 14:43:59,241 INFO L273 TraceCheckUtils]: 76: Hoare triple {38890#(and (or (and (<= 152 main_i) (= 23 (select main_a (* 4 main_n)))) (< 54 main_n)) (or (<= main_i 152) (<= main_n 54)))} assume i <= n * 4; {38890#(and (or (and (<= 152 main_i) (= 23 (select main_a (* 4 main_n)))) (< 54 main_n)) (or (<= main_i 152) (<= main_n 54)))} is VALID [2019-01-31 14:43:59,242 INFO L273 TraceCheckUtils]: 77: Hoare triple {38890#(and (or (and (<= 152 main_i) (= 23 (select main_a (* 4 main_n)))) (< 54 main_n)) (or (<= main_i 152) (<= main_n 54)))} assume a[i] != 23;i := i + 4; {38891#(and (or (< 54 main_n) (and (<= 156 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 156) (<= main_n 54)))} is VALID [2019-01-31 14:43:59,243 INFO L273 TraceCheckUtils]: 78: Hoare triple {38891#(and (or (< 54 main_n) (and (<= 156 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 156) (<= main_n 54)))} assume i <= n * 4; {38891#(and (or (< 54 main_n) (and (<= 156 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 156) (<= main_n 54)))} is VALID [2019-01-31 14:43:59,244 INFO L273 TraceCheckUtils]: 79: Hoare triple {38891#(and (or (< 54 main_n) (and (<= 156 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 156) (<= main_n 54)))} assume a[i] != 23;i := i + 4; {38892#(and (or (<= main_n 54) (<= main_i 160)) (or (and (<= 160 main_i) (= 23 (select main_a (* 4 main_n)))) (< 54 main_n)))} is VALID [2019-01-31 14:43:59,245 INFO L273 TraceCheckUtils]: 80: Hoare triple {38892#(and (or (<= main_n 54) (<= main_i 160)) (or (and (<= 160 main_i) (= 23 (select main_a (* 4 main_n)))) (< 54 main_n)))} assume i <= n * 4; {38892#(and (or (<= main_n 54) (<= main_i 160)) (or (and (<= 160 main_i) (= 23 (select main_a (* 4 main_n)))) (< 54 main_n)))} is VALID [2019-01-31 14:43:59,246 INFO L273 TraceCheckUtils]: 81: Hoare triple {38892#(and (or (<= main_n 54) (<= main_i 160)) (or (and (<= 160 main_i) (= 23 (select main_a (* 4 main_n)))) (< 54 main_n)))} assume a[i] != 23;i := i + 4; {38893#(and (or (and (<= 164 main_i) (= 23 (select main_a (* 4 main_n)))) (< 54 main_n)) (or (<= main_i 164) (<= main_n 54)))} is VALID [2019-01-31 14:43:59,247 INFO L273 TraceCheckUtils]: 82: Hoare triple {38893#(and (or (and (<= 164 main_i) (= 23 (select main_a (* 4 main_n)))) (< 54 main_n)) (or (<= main_i 164) (<= main_n 54)))} assume i <= n * 4; {38893#(and (or (and (<= 164 main_i) (= 23 (select main_a (* 4 main_n)))) (< 54 main_n)) (or (<= main_i 164) (<= main_n 54)))} is VALID [2019-01-31 14:43:59,248 INFO L273 TraceCheckUtils]: 83: Hoare triple {38893#(and (or (and (<= 164 main_i) (= 23 (select main_a (* 4 main_n)))) (< 54 main_n)) (or (<= main_i 164) (<= main_n 54)))} assume a[i] != 23;i := i + 4; {38894#(and (or (< 54 main_n) (and (<= 168 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 168) (<= main_n 54)))} is VALID [2019-01-31 14:43:59,249 INFO L273 TraceCheckUtils]: 84: Hoare triple {38894#(and (or (< 54 main_n) (and (<= 168 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 168) (<= main_n 54)))} assume i <= n * 4; {38894#(and (or (< 54 main_n) (and (<= 168 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 168) (<= main_n 54)))} is VALID [2019-01-31 14:43:59,250 INFO L273 TraceCheckUtils]: 85: Hoare triple {38894#(and (or (< 54 main_n) (and (<= 168 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 168) (<= main_n 54)))} assume a[i] != 23;i := i + 4; {38895#(and (or (and (<= 172 main_i) (= 23 (select main_a (* 4 main_n)))) (< 54 main_n)) (or (<= main_i 172) (<= main_n 54)))} is VALID [2019-01-31 14:43:59,251 INFO L273 TraceCheckUtils]: 86: Hoare triple {38895#(and (or (and (<= 172 main_i) (= 23 (select main_a (* 4 main_n)))) (< 54 main_n)) (or (<= main_i 172) (<= main_n 54)))} assume i <= n * 4; {38895#(and (or (and (<= 172 main_i) (= 23 (select main_a (* 4 main_n)))) (< 54 main_n)) (or (<= main_i 172) (<= main_n 54)))} is VALID [2019-01-31 14:43:59,252 INFO L273 TraceCheckUtils]: 87: Hoare triple {38895#(and (or (and (<= 172 main_i) (= 23 (select main_a (* 4 main_n)))) (< 54 main_n)) (or (<= main_i 172) (<= main_n 54)))} assume a[i] != 23;i := i + 4; {38896#(and (or (< 54 main_n) (and (<= 176 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 176) (<= main_n 54)))} is VALID [2019-01-31 14:43:59,253 INFO L273 TraceCheckUtils]: 88: Hoare triple {38896#(and (or (< 54 main_n) (and (<= 176 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 176) (<= main_n 54)))} assume i <= n * 4; {38896#(and (or (< 54 main_n) (and (<= 176 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 176) (<= main_n 54)))} is VALID [2019-01-31 14:43:59,254 INFO L273 TraceCheckUtils]: 89: Hoare triple {38896#(and (or (< 54 main_n) (and (<= 176 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 176) (<= main_n 54)))} assume a[i] != 23;i := i + 4; {38897#(and (or (<= main_i 180) (<= main_n 54)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 180 main_i)) (< 54 main_n)))} is VALID [2019-01-31 14:43:59,255 INFO L273 TraceCheckUtils]: 90: Hoare triple {38897#(and (or (<= main_i 180) (<= main_n 54)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 180 main_i)) (< 54 main_n)))} assume i <= n * 4; {38897#(and (or (<= main_i 180) (<= main_n 54)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 180 main_i)) (< 54 main_n)))} is VALID [2019-01-31 14:43:59,256 INFO L273 TraceCheckUtils]: 91: Hoare triple {38897#(and (or (<= main_i 180) (<= main_n 54)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 180 main_i)) (< 54 main_n)))} assume a[i] != 23;i := i + 4; {38898#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 184 main_i)) (< 54 main_n)) (or (<= main_i 184) (<= main_n 54)))} is VALID [2019-01-31 14:43:59,257 INFO L273 TraceCheckUtils]: 92: Hoare triple {38898#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 184 main_i)) (< 54 main_n)) (or (<= main_i 184) (<= main_n 54)))} assume i <= n * 4; {38898#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 184 main_i)) (< 54 main_n)) (or (<= main_i 184) (<= main_n 54)))} is VALID [2019-01-31 14:43:59,258 INFO L273 TraceCheckUtils]: 93: Hoare triple {38898#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 184 main_i)) (< 54 main_n)) (or (<= main_i 184) (<= main_n 54)))} assume a[i] != 23;i := i + 4; {38899#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 188 main_i)) (< 54 main_n)) (or (<= main_i 188) (<= main_n 54)))} is VALID [2019-01-31 14:43:59,259 INFO L273 TraceCheckUtils]: 94: Hoare triple {38899#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 188 main_i)) (< 54 main_n)) (or (<= main_i 188) (<= main_n 54)))} assume i <= n * 4; {38899#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 188 main_i)) (< 54 main_n)) (or (<= main_i 188) (<= main_n 54)))} is VALID [2019-01-31 14:43:59,260 INFO L273 TraceCheckUtils]: 95: Hoare triple {38899#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 188 main_i)) (< 54 main_n)) (or (<= main_i 188) (<= main_n 54)))} assume a[i] != 23;i := i + 4; {38900#(and (or (and (<= 192 main_i) (= 23 (select main_a (* 4 main_n)))) (< 54 main_n)) (or (<= main_i 192) (<= main_n 54)))} is VALID [2019-01-31 14:43:59,261 INFO L273 TraceCheckUtils]: 96: Hoare triple {38900#(and (or (and (<= 192 main_i) (= 23 (select main_a (* 4 main_n)))) (< 54 main_n)) (or (<= main_i 192) (<= main_n 54)))} assume i <= n * 4; {38900#(and (or (and (<= 192 main_i) (= 23 (select main_a (* 4 main_n)))) (< 54 main_n)) (or (<= main_i 192) (<= main_n 54)))} is VALID [2019-01-31 14:43:59,262 INFO L273 TraceCheckUtils]: 97: Hoare triple {38900#(and (or (and (<= 192 main_i) (= 23 (select main_a (* 4 main_n)))) (< 54 main_n)) (or (<= main_i 192) (<= main_n 54)))} assume a[i] != 23;i := i + 4; {38901#(and (or (< 54 main_n) (and (<= 196 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 54) (<= main_i 196)))} is VALID [2019-01-31 14:43:59,264 INFO L273 TraceCheckUtils]: 98: Hoare triple {38901#(and (or (< 54 main_n) (and (<= 196 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 54) (<= main_i 196)))} assume i <= n * 4; {38901#(and (or (< 54 main_n) (and (<= 196 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 54) (<= main_i 196)))} is VALID [2019-01-31 14:43:59,266 INFO L273 TraceCheckUtils]: 99: Hoare triple {38901#(and (or (< 54 main_n) (and (<= 196 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 54) (<= main_i 196)))} assume a[i] != 23;i := i + 4; {38902#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 200 main_i)) (< 54 main_n)) (or (<= main_i 200) (<= main_n 54)))} is VALID [2019-01-31 14:43:59,267 INFO L273 TraceCheckUtils]: 100: Hoare triple {38902#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 200 main_i)) (< 54 main_n)) (or (<= main_i 200) (<= main_n 54)))} assume i <= n * 4; {38902#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 200 main_i)) (< 54 main_n)) (or (<= main_i 200) (<= main_n 54)))} is VALID [2019-01-31 14:43:59,268 INFO L273 TraceCheckUtils]: 101: Hoare triple {38902#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 200 main_i)) (< 54 main_n)) (or (<= main_i 200) (<= main_n 54)))} assume a[i] != 23;i := i + 4; {38903#(and (or (and (<= 204 main_i) (= 23 (select main_a (* 4 main_n)))) (< 54 main_n)) (or (<= main_i 204) (<= main_n 54)))} is VALID [2019-01-31 14:43:59,268 INFO L273 TraceCheckUtils]: 102: Hoare triple {38903#(and (or (and (<= 204 main_i) (= 23 (select main_a (* 4 main_n)))) (< 54 main_n)) (or (<= main_i 204) (<= main_n 54)))} assume i <= n * 4; {38903#(and (or (and (<= 204 main_i) (= 23 (select main_a (* 4 main_n)))) (< 54 main_n)) (or (<= main_i 204) (<= main_n 54)))} is VALID [2019-01-31 14:43:59,270 INFO L273 TraceCheckUtils]: 103: Hoare triple {38903#(and (or (and (<= 204 main_i) (= 23 (select main_a (* 4 main_n)))) (< 54 main_n)) (or (<= main_i 204) (<= main_n 54)))} assume a[i] != 23;i := i + 4; {38904#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 208 main_i)) (< 54 main_n)) (or (<= main_i 208) (<= main_n 54)))} is VALID [2019-01-31 14:43:59,271 INFO L273 TraceCheckUtils]: 104: Hoare triple {38904#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 208 main_i)) (< 54 main_n)) (or (<= main_i 208) (<= main_n 54)))} assume i <= n * 4; {38904#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 208 main_i)) (< 54 main_n)) (or (<= main_i 208) (<= main_n 54)))} is VALID [2019-01-31 14:43:59,272 INFO L273 TraceCheckUtils]: 105: Hoare triple {38904#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 208 main_i)) (< 54 main_n)) (or (<= main_i 208) (<= main_n 54)))} assume a[i] != 23;i := i + 4; {38905#(and (or (and (<= 212 main_i) (= 23 (select main_a (* 4 main_n)))) (< 54 main_n)) (or (<= main_i 212) (<= main_n 54)))} is VALID [2019-01-31 14:43:59,272 INFO L273 TraceCheckUtils]: 106: Hoare triple {38905#(and (or (and (<= 212 main_i) (= 23 (select main_a (* 4 main_n)))) (< 54 main_n)) (or (<= main_i 212) (<= main_n 54)))} assume i <= n * 4; {38905#(and (or (and (<= 212 main_i) (= 23 (select main_a (* 4 main_n)))) (< 54 main_n)) (or (<= main_i 212) (<= main_n 54)))} is VALID [2019-01-31 14:43:59,274 INFO L273 TraceCheckUtils]: 107: Hoare triple {38905#(and (or (and (<= 212 main_i) (= 23 (select main_a (* 4 main_n)))) (< 54 main_n)) (or (<= main_i 212) (<= main_n 54)))} assume a[i] != 23;i := i + 4; {38906#(and (or (<= main_i 216) (<= main_n 54)) (or (and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (<= (* 4 main_n) main_i)) (< 54 main_n)))} is VALID [2019-01-31 14:43:59,274 INFO L273 TraceCheckUtils]: 108: Hoare triple {38906#(and (or (<= main_i 216) (<= main_n 54)) (or (and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (<= (* 4 main_n) main_i)) (< 54 main_n)))} assume i <= n * 4; {38907#(and (<= main_i 216) (or (< 54 main_n) (and (<= (* 4 main_n) main_i) (<= main_i (* 4 main_n)) (= 23 (select main_a main_i)))))} is VALID [2019-01-31 14:43:59,276 INFO L273 TraceCheckUtils]: 109: Hoare triple {38907#(and (<= main_i 216) (or (< 54 main_n) (and (<= (* 4 main_n) main_i) (<= main_i (* 4 main_n)) (= 23 (select main_a main_i)))))} assume a[i] != 23;i := i + 4; {38908#(and (<= main_i 220) (<= 55 main_n))} is VALID [2019-01-31 14:43:59,276 INFO L273 TraceCheckUtils]: 110: Hoare triple {38908#(and (<= main_i 220) (<= 55 main_n))} assume !(i <= n * 4); {38851#false} is VALID [2019-01-31 14:43:59,335 INFO L134 CoverageAnalysis]: Checked inductivity of 2970 backedges. 0 proven. 2970 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-31 14:43:59,336 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-31 14:43:59,336 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-01-31 14:43:59,336 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-01-31 14:43:59,336 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-01-31 14:43:59,336 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-31 14:43:59,336 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 14:43:59,346 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2019-01-31 14:43:59,346 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder TERMS_WITH_SMALL_CONSTANTS_FIRST (IT: FPandBP) [2019-01-31 14:43:59,379 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-01-31 14:43:59,379 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-01-31 14:43:59,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-31 14:43:59,399 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-31 14:43:59,416 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 14:43:59,425 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-01-31 14:43:59,432 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-31 14:43:59,432 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2019-01-31 14:43:59,434 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-01-31 14:43:59,434 WARN L398 uantifierElimination]: Input elimination task: ∃ [v_main_a_58]. (and (= (store v_main_a_58 (* 4 main_n) 23) main_a) (= main_i 0)) [2019-01-31 14:43:59,434 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n))))