/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/recursive/recHanoi03-2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-86f66a4 [2020-07-07 10:57:09,429 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-07 10:57:09,431 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-07 10:57:09,450 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-07 10:57:09,450 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-07 10:57:09,452 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-07 10:57:09,454 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-07 10:57:09,463 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-07 10:57:09,465 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-07 10:57:09,466 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-07 10:57:09,467 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-07 10:57:09,468 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-07 10:57:09,468 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-07 10:57:09,470 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-07 10:57:09,471 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-07 10:57:09,475 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-07 10:57:09,475 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-07 10:57:09,476 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-07 10:57:09,479 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-07 10:57:09,486 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-07 10:57:09,488 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-07 10:57:09,491 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-07 10:57:09,494 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-07 10:57:09,494 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-07 10:57:09,497 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-07 10:57:09,515 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-07 10:57:09,516 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-07 10:57:09,517 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-07 10:57:09,518 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-07 10:57:09,542 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-07 10:57:09,542 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-07 10:57:09,543 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-07 10:57:09,544 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-07 10:57:09,544 INFO L138 SettingsManager]: * Use SBE=true [2020-07-07 10:57:09,544 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-07 10:57:09,545 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-07 10:57:09,545 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-07 10:57:09,545 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-07 10:57:09,545 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-07 10:57:09,546 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-07 10:57:09,547 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-07 10:57:09,547 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-07 10:57:09,547 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-07 10:57:09,547 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-07 10:57:09,548 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-07 10:57:09,548 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-07 10:57:09,548 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-07 10:57:09,548 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-07 10:57:09,548 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-07 10:57:09,548 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-07 10:57:09,549 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-07 10:57:09,549 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-07 10:57:09,549 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-07 10:57:09,549 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-07 10:57:09,550 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-07 10:57:09,550 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-07 10:57:09,550 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-07 10:57:09,550 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-07 10:57:09,550 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-07-07 10:57:09,832 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-07 10:57:09,844 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-07 10:57:09,847 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-07 10:57:09,848 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-07 10:57:09,849 INFO L275 PluginConnector]: CDTParser initialized [2020-07-07 10:57:09,849 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive/recHanoi03-2.c [2020-07-07 10:57:09,909 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0b52e1a9d/ad4c3a1b20e74092a1d9d434e01cc267/FLAGff701d983 [2020-07-07 10:57:10,309 INFO L306 CDTParser]: Found 1 translation units. [2020-07-07 10:57:10,310 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/recursive/recHanoi03-2.c [2020-07-07 10:57:10,316 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0b52e1a9d/ad4c3a1b20e74092a1d9d434e01cc267/FLAGff701d983 [2020-07-07 10:57:10,760 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0b52e1a9d/ad4c3a1b20e74092a1d9d434e01cc267 [2020-07-07 10:57:10,772 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-07 10:57:10,773 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-07 10:57:10,774 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-07 10:57:10,774 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-07 10:57:10,778 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-07 10:57:10,779 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.07 10:57:10" (1/1) ... [2020-07-07 10:57:10,783 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@527465e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 10:57:10, skipping insertion in model container [2020-07-07 10:57:10,783 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.07 10:57:10" (1/1) ... [2020-07-07 10:57:10,792 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-07 10:57:10,810 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-07 10:57:11,002 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-07 10:57:11,006 INFO L203 MainTranslator]: Completed pre-run [2020-07-07 10:57:11,022 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-07 10:57:11,036 INFO L208 MainTranslator]: Completed translation [2020-07-07 10:57:11,036 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 10:57:11 WrapperNode [2020-07-07 10:57:11,036 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-07 10:57:11,037 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-07 10:57:11,037 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-07 10:57:11,037 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-07 10:57:11,051 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 10:57:11" (1/1) ... [2020-07-07 10:57:11,052 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 10:57:11" (1/1) ... [2020-07-07 10:57:11,057 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 10:57:11" (1/1) ... [2020-07-07 10:57:11,057 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 10:57:11" (1/1) ... [2020-07-07 10:57:11,061 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 10:57:11" (1/1) ... [2020-07-07 10:57:11,063 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 10:57:11" (1/1) ... [2020-07-07 10:57:11,064 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 10:57:11" (1/1) ... [2020-07-07 10:57:11,065 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-07 10:57:11,065 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-07 10:57:11,066 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-07 10:57:11,066 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-07 10:57:11,067 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 10:57:11" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-07 10:57:11,223 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-07 10:57:11,224 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-07 10:57:11,224 INFO L138 BoogieDeclarations]: Found implementation of procedure hanoi [2020-07-07 10:57:11,224 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-07 10:57:11,224 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-07 10:57:11,224 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-07 10:57:11,225 INFO L130 BoogieDeclarations]: Found specification of procedure hanoi [2020-07-07 10:57:11,225 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-07 10:57:11,225 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-07 10:57:11,225 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-07 10:57:11,408 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-07 10:57:11,409 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-07-07 10:57:11,413 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.07 10:57:11 BoogieIcfgContainer [2020-07-07 10:57:11,413 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-07 10:57:11,414 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-07 10:57:11,414 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-07 10:57:11,418 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-07 10:57:11,418 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.07 10:57:10" (1/3) ... [2020-07-07 10:57:11,419 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@409247a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.07 10:57:11, skipping insertion in model container [2020-07-07 10:57:11,419 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 10:57:11" (2/3) ... [2020-07-07 10:57:11,420 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@409247a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.07 10:57:11, skipping insertion in model container [2020-07-07 10:57:11,420 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.07 10:57:11" (3/3) ... [2020-07-07 10:57:11,422 INFO L109 eAbstractionObserver]: Analyzing ICFG recHanoi03-2.c [2020-07-07 10:57:11,433 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-07 10:57:11,441 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-07 10:57:11,457 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-07 10:57:11,482 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-07 10:57:11,483 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-07 10:57:11,483 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-07 10:57:11,483 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-07 10:57:11,483 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-07 10:57:11,484 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-07 10:57:11,484 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-07 10:57:11,484 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-07 10:57:11,504 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states. [2020-07-07 10:57:11,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-07-07 10:57:11,511 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 10:57:11,512 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 10:57:11,513 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 10:57:11,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 10:57:11,520 INFO L82 PathProgramCache]: Analyzing trace with hash 913793727, now seen corresponding path program 1 times [2020-07-07 10:57:11,530 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 10:57:11,531 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1856380149] [2020-07-07 10:57:11,531 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 10:57:11,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:57:11,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:57:11,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:57:11,793 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 10:57:11,794 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1856380149] [2020-07-07 10:57:11,795 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 10:57:11,795 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-07 10:57:11,796 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1230124475] [2020-07-07 10:57:11,802 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-07 10:57:11,803 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 10:57:11,833 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-07 10:57:11,834 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-07-07 10:57:11,836 INFO L87 Difference]: Start difference. First operand 21 states. Second operand 6 states. [2020-07-07 10:57:11,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 10:57:11,983 INFO L93 Difference]: Finished difference Result 33 states and 37 transitions. [2020-07-07 10:57:11,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-07 10:57:11,986 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2020-07-07 10:57:11,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 10:57:11,997 INFO L225 Difference]: With dead ends: 33 [2020-07-07 10:57:11,997 INFO L226 Difference]: Without dead ends: 19 [2020-07-07 10:57:12,001 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-07-07 10:57:12,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2020-07-07 10:57:12,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2020-07-07 10:57:12,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2020-07-07 10:57:12,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 20 transitions. [2020-07-07 10:57:12,050 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 20 transitions. Word has length 14 [2020-07-07 10:57:12,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 10:57:12,051 INFO L479 AbstractCegarLoop]: Abstraction has 19 states and 20 transitions. [2020-07-07 10:57:12,051 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-07 10:57:12,051 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 20 transitions. [2020-07-07 10:57:12,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-07-07 10:57:12,053 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 10:57:12,054 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 10:57:12,054 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-07 10:57:12,055 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 10:57:12,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 10:57:12,055 INFO L82 PathProgramCache]: Analyzing trace with hash -1998834103, now seen corresponding path program 1 times [2020-07-07 10:57:12,056 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 10:57:12,056 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1547931200] [2020-07-07 10:57:12,056 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 10:57:12,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:57:12,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:57:12,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:57:12,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:57:12,323 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-07-07 10:57:12,324 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1547931200] [2020-07-07 10:57:12,324 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [240150952] [2020-07-07 10:57:12,325 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-07 10:57:12,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:57:12,364 INFO L264 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-07 10:57:12,371 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-07 10:57:12,628 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-07-07 10:57:12,629 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-07 10:57:12,630 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2020-07-07 10:57:12,631 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [838374728] [2020-07-07 10:57:12,633 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-07-07 10:57:12,634 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 10:57:12,634 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-07-07 10:57:12,635 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2020-07-07 10:57:12,636 INFO L87 Difference]: Start difference. First operand 19 states and 20 transitions. Second operand 14 states. [2020-07-07 10:57:12,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 10:57:12,894 INFO L93 Difference]: Finished difference Result 26 states and 27 transitions. [2020-07-07 10:57:12,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-07 10:57:12,896 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 20 [2020-07-07 10:57:12,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 10:57:12,897 INFO L225 Difference]: With dead ends: 26 [2020-07-07 10:57:12,898 INFO L226 Difference]: Without dead ends: 22 [2020-07-07 10:57:12,902 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=49, Invalid=223, Unknown=0, NotChecked=0, Total=272 [2020-07-07 10:57:12,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2020-07-07 10:57:12,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2020-07-07 10:57:12,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2020-07-07 10:57:12,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 23 transitions. [2020-07-07 10:57:12,915 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 23 transitions. Word has length 20 [2020-07-07 10:57:12,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 10:57:12,915 INFO L479 AbstractCegarLoop]: Abstraction has 22 states and 23 transitions. [2020-07-07 10:57:12,916 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-07-07 10:57:12,916 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 23 transitions. [2020-07-07 10:57:12,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-07-07 10:57:12,919 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 10:57:12,919 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 10:57:13,133 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2020-07-07 10:57:13,134 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 10:57:13,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 10:57:13,135 INFO L82 PathProgramCache]: Analyzing trace with hash 293522751, now seen corresponding path program 2 times [2020-07-07 10:57:13,135 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 10:57:13,135 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1061647253] [2020-07-07 10:57:13,135 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 10:57:13,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:57:13,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:57:13,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:57:13,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:57:13,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:57:13,301 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-07-07 10:57:13,301 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1061647253] [2020-07-07 10:57:13,302 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1674345707] [2020-07-07 10:57:13,302 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-07 10:57:13,339 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-07-07 10:57:13,339 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-07 10:57:13,340 INFO L264 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 15 conjunts are in the unsatisfiable core [2020-07-07 10:57:13,342 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-07 10:57:15,650 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-07-07 10:57:15,651 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-07 10:57:15,651 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 18 [2020-07-07 10:57:15,651 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1656407186] [2020-07-07 10:57:15,652 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-07-07 10:57:15,652 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 10:57:15,653 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-07-07 10:57:15,653 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=263, Unknown=1, NotChecked=0, Total=306 [2020-07-07 10:57:15,653 INFO L87 Difference]: Start difference. First operand 22 states and 23 transitions. Second operand 18 states. [2020-07-07 10:57:15,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 10:57:15,933 INFO L93 Difference]: Finished difference Result 34 states and 36 transitions. [2020-07-07 10:57:15,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-07-07 10:57:15,934 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 26 [2020-07-07 10:57:15,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 10:57:15,935 INFO L225 Difference]: With dead ends: 34 [2020-07-07 10:57:15,935 INFO L226 Difference]: Without dead ends: 28 [2020-07-07 10:57:15,936 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 78 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=85, Invalid=514, Unknown=1, NotChecked=0, Total=600 [2020-07-07 10:57:15,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2020-07-07 10:57:15,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2020-07-07 10:57:15,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2020-07-07 10:57:15,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 29 transitions. [2020-07-07 10:57:15,944 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 29 transitions. Word has length 26 [2020-07-07 10:57:15,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 10:57:15,944 INFO L479 AbstractCegarLoop]: Abstraction has 28 states and 29 transitions. [2020-07-07 10:57:15,944 INFO L480 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-07-07 10:57:15,945 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 29 transitions. [2020-07-07 10:57:15,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-07-07 10:57:15,946 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 10:57:15,947 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 10:57:16,159 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-07 10:57:16,161 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 10:57:16,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 10:57:16,161 INFO L82 PathProgramCache]: Analyzing trace with hash -1152432193, now seen corresponding path program 3 times [2020-07-07 10:57:16,162 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 10:57:16,162 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1175730481] [2020-07-07 10:57:16,163 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 10:57:16,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:57:16,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:57:16,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:57:16,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:57:16,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:57:16,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:57:16,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:57:16,567 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2020-07-07 10:57:16,568 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1175730481] [2020-07-07 10:57:16,568 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1898887919] [2020-07-07 10:57:16,568 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-07 10:57:16,615 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2020-07-07 10:57:16,616 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-07 10:57:16,617 INFO L264 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 13 conjunts are in the unsatisfiable core [2020-07-07 10:57:16,620 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-07 10:57:35,166 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2020-07-07 10:57:35,167 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-07-07 10:57:35,167 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [14] total 26 [2020-07-07 10:57:35,167 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1098570572] [2020-07-07 10:57:35,168 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-07-07 10:57:35,168 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 10:57:35,169 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-07-07 10:57:35,169 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=573, Unknown=8, NotChecked=0, Total=650 [2020-07-07 10:57:35,170 INFO L87 Difference]: Start difference. First operand 28 states and 29 transitions. Second operand 14 states. [2020-07-07 10:57:50,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 10:57:50,156 INFO L93 Difference]: Finished difference Result 28 states and 29 transitions. [2020-07-07 10:57:50,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-07-07 10:57:50,205 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 38 [2020-07-07 10:57:50,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 10:57:50,205 INFO L225 Difference]: With dead ends: 28 [2020-07-07 10:57:50,205 INFO L226 Difference]: Without dead ends: 0 [2020-07-07 10:57:50,207 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 18.5s TimeCoverageRelationStatistics Valid=69, Invalid=573, Unknown=8, NotChecked=0, Total=650 [2020-07-07 10:57:50,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-07 10:57:50,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-07 10:57:50,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-07 10:57:50,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-07 10:57:50,208 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 38 [2020-07-07 10:57:50,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 10:57:50,208 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-07 10:57:50,209 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-07-07 10:57:50,209 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-07 10:57:50,209 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-07 10:57:50,411 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-07 10:57:50,414 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-07 10:57:50,464 INFO L271 CegarLoopResult]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2020-07-07 10:57:50,464 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-07 10:57:50,464 INFO L268 CegarLoopResult]: For program point L17(lines 17 19) no Hoare annotation was computed. [2020-07-07 10:57:50,464 INFO L268 CegarLoopResult]: For program point hanoiEXIT(lines 16 21) no Hoare annotation was computed. [2020-07-07 10:57:50,464 INFO L271 CegarLoopResult]: At program point hanoiENTRY(lines 16 21) the Hoare annotation is: true [2020-07-07 10:57:50,464 INFO L268 CegarLoopResult]: For program point hanoiFINAL(lines 16 21) no Hoare annotation was computed. [2020-07-07 10:57:50,464 INFO L264 CegarLoopResult]: At program point L20(line 20) the Hoare annotation is: (= hanoi_~n |hanoi_#in~n|) [2020-07-07 10:57:50,464 INFO L268 CegarLoopResult]: For program point L20-1(line 20) no Hoare annotation was computed. [2020-07-07 10:57:50,465 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-07 10:57:50,465 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-07-07 10:57:50,465 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-07 10:57:50,465 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-07 10:57:50,465 INFO L268 CegarLoopResult]: For program point L33(line 33) no Hoare annotation was computed. [2020-07-07 10:57:50,465 INFO L268 CegarLoopResult]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 33) no Hoare annotation was computed. [2020-07-07 10:57:50,465 INFO L268 CegarLoopResult]: For program point L30(lines 30 34) no Hoare annotation was computed. [2020-07-07 10:57:50,466 INFO L271 CegarLoopResult]: At program point mainENTRY(lines 24 35) the Hoare annotation is: true [2020-07-07 10:57:50,466 INFO L264 CegarLoopResult]: At program point L29(line 29) the Hoare annotation is: (<= main_~n~0 31) [2020-07-07 10:57:50,466 INFO L268 CegarLoopResult]: For program point L29-1(line 29) no Hoare annotation was computed. [2020-07-07 10:57:50,466 INFO L268 CegarLoopResult]: For program point L26(lines 26 28) no Hoare annotation was computed. [2020-07-07 10:57:50,466 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 24 35) no Hoare annotation was computed. [2020-07-07 10:57:50,466 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 24 35) no Hoare annotation was computed. [2020-07-07 10:57:50,471 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.07 10:57:50 BoogieIcfgContainer [2020-07-07 10:57:50,472 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-07 10:57:50,475 INFO L168 Benchmark]: Toolchain (without parser) took 39700.41 ms. Allocated memory was 146.8 MB in the beginning and 243.3 MB in the end (delta: 96.5 MB). Free memory was 103.6 MB in the beginning and 126.8 MB in the end (delta: -23.2 MB). Peak memory consumption was 73.3 MB. Max. memory is 7.1 GB. [2020-07-07 10:57:50,476 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 146.8 MB. Free memory was 121.8 MB in the beginning and 121.6 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-07 10:57:50,481 INFO L168 Benchmark]: CACSL2BoogieTranslator took 262.57 ms. Allocated memory is still 146.8 MB. Free memory was 103.2 MB in the beginning and 94.0 MB in the end (delta: 9.1 MB). Peak memory consumption was 9.1 MB. Max. memory is 7.1 GB. [2020-07-07 10:57:50,485 INFO L168 Benchmark]: Boogie Preprocessor took 27.93 ms. Allocated memory is still 146.8 MB. Free memory was 94.0 MB in the beginning and 92.7 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2020-07-07 10:57:50,486 INFO L168 Benchmark]: RCFGBuilder took 347.54 ms. Allocated memory was 146.8 MB in the beginning and 203.9 MB in the end (delta: 57.1 MB). Free memory was 92.5 MB in the beginning and 172.1 MB in the end (delta: -79.7 MB). Peak memory consumption was 10.0 MB. Max. memory is 7.1 GB. [2020-07-07 10:57:50,489 INFO L168 Benchmark]: TraceAbstraction took 39057.70 ms. Allocated memory was 203.9 MB in the beginning and 243.3 MB in the end (delta: 39.3 MB). Free memory was 171.5 MB in the beginning and 126.8 MB in the end (delta: 44.7 MB). Peak memory consumption was 84.0 MB. Max. memory is 7.1 GB. [2020-07-07 10:57:50,495 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 146.8 MB. Free memory was 121.8 MB in the beginning and 121.6 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 262.57 ms. Allocated memory is still 146.8 MB. Free memory was 103.2 MB in the beginning and 94.0 MB in the end (delta: 9.1 MB). Peak memory consumption was 9.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 27.93 ms. Allocated memory is still 146.8 MB. Free memory was 94.0 MB in the beginning and 92.7 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 347.54 ms. Allocated memory was 146.8 MB in the beginning and 203.9 MB in the end (delta: 57.1 MB). Free memory was 92.5 MB in the beginning and 172.1 MB in the end (delta: -79.7 MB). Peak memory consumption was 10.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 39057.70 ms. Allocated memory was 203.9 MB in the beginning and 243.3 MB in the end (delta: 39.3 MB). Free memory was 171.5 MB in the beginning and 126.8 MB in the end (delta: 44.7 MB). Peak memory consumption was 84.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 33]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 21 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 38.9s, OverallIterations: 4, TraceHistogramMax: 5, AutomataDifference: 15.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 68 SDtfs, 26 SDslu, 334 SDs, 0 SdLazy, 270 SolverSat, 15 SolverUnsat, 7 SolverUnknown, 0 SolverNotchecked, 15.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 157 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 149 ImplicationChecksByTransitivity, 21.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=28occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 9 PreInvPairs, 9 NumberOfFragments, 11 HoareAnnotationTreeSize, 9 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 22.0s InterpolantComputationTime, 182 NumberOfCodeBlocks, 182 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 175 ConstructedInterpolants, 18 QuantifiedInterpolants, 27252 SizeOfPredicates, 11 NumberOfNonLiveVariables, 203 ConjunctsInSsa, 39 ConjunctsInUnsatCore, 7 InterpolantComputations, 2 PerfectInterpolantSequences, 96/140 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...