/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/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/ldv-regression/test29-2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-6598664 [2019-11-23 21:56:57,624 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-23 21:56:57,627 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-23 21:56:57,642 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2019-11-23 21:56:57,658 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-23 21:56:57,659 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-23 21:56:57,660 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-23 21:56:57,661 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-23 21:56:57,662 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-23 21:56:57,662 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-23 21:56:57,664 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-23 21:56:57,665 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-23 21:56:57,667 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-23 21:56:57,668 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-23 21:56:57,669 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-23 21:56:57,669 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-23 21:56:57,671 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-11-23 21:56:57,680 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 [2019-11-23 21:56:57,694 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-23 21:56:57,694 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-23 21:56:57,695 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-23 21:56:57,695 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-23 21:56:57,696 INFO L138 SettingsManager]: * Use SBE=true [2019-11-23 21:56:57,696 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-23 21:56:57,696 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-23 21:56:57,696 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-23 21:56:57,696 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-23 21:56:57,697 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-23 21:56:57,697 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-23 21:56:57,697 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-23 21:56:57,697 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-23 21:56:57,697 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-11-23 21:56:57,697 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-23 21:56:57,698 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-23 21:56:57,698 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-23 21:56:57,698 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-23 21:56:57,698 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-23 21:56:57,698 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-23 21:56:57,699 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-23 21:56:57,699 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-23 21:56:57,699 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-23 21:56:57,699 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-23 21:56:57,699 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-23 21:56:57,700 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-23 21:56:57,700 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-23 21:56:57,700 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-23 21:56:57,700 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-23 21:56:57,700 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-23 21:56:57,991 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-23 21:56:58,005 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-23 21:56:58,009 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-23 21:56:58,010 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-23 21:56:58,011 INFO L275 PluginConnector]: CDTParser initialized [2019-11-23 21:56:58,012 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/test29-2.c [2019-11-23 21:56:58,099 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7f87522d4/1853b817b49e485995be887942ea76de/FLAG0689cfd31 [2019-11-23 21:56:58,583 INFO L306 CDTParser]: Found 1 translation units. [2019-11-23 21:56:58,584 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/test29-2.c [2019-11-23 21:56:58,590 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7f87522d4/1853b817b49e485995be887942ea76de/FLAG0689cfd31 [2019-11-23 21:56:58,928 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7f87522d4/1853b817b49e485995be887942ea76de [2019-11-23 21:56:58,936 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-23 21:56:58,938 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-23 21:56:58,939 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-23 21:56:58,939 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-23 21:56:58,943 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-23 21:56:58,944 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:56:58" (1/1) ... [2019-11-23 21:56:58,947 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d6efd21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:56:58, skipping insertion in model container [2019-11-23 21:56:58,948 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:56:58" (1/1) ... [2019-11-23 21:56:58,956 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-23 21:56:58,974 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-23 21:56:59,151 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-23 21:56:59,167 INFO L203 MainTranslator]: Completed pre-run [2019-11-23 21:56:59,186 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-23 21:56:59,201 INFO L208 MainTranslator]: Completed translation [2019-11-23 21:56:59,201 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:56:59 WrapperNode [2019-11-23 21:56:59,201 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-23 21:56:59,202 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-23 21:56:59,202 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-23 21:56:59,202 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-23 21:56:59,210 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:56:59" (1/1) ... [2019-11-23 21:56:59,295 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:56:59" (1/1) ... [2019-11-23 21:56:59,317 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-23 21:56:59,318 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-23 21:56:59,318 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-23 21:56:59,318 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-23 21:56:59,327 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:56:59" (1/1) ... [2019-11-23 21:56:59,327 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:56:59" (1/1) ... [2019-11-23 21:56:59,328 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:56:59" (1/1) ... [2019-11-23 21:56:59,329 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:56:59" (1/1) ... [2019-11-23 21:56:59,333 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:56:59" (1/1) ... [2019-11-23 21:56:59,335 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:56:59" (1/1) ... [2019-11-23 21:56:59,336 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:56:59" (1/1) ... [2019-11-23 21:56:59,338 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-23 21:56:59,338 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-23 21:56:59,339 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-23 21:56:59,339 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-23 21:56:59,340 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:56:59" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-23 21:56:59,395 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-23 21:56:59,396 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-23 21:56:59,397 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-23 21:56:59,397 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-23 21:56:59,397 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-23 21:56:59,398 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-23 21:56:59,603 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-23 21:56:59,603 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-11-23 21:56:59,605 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:56:59 BoogieIcfgContainer [2019-11-23 21:56:59,605 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-23 21:56:59,606 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-23 21:56:59,606 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-23 21:56:59,609 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-23 21:56:59,609 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 09:56:58" (1/3) ... [2019-11-23 21:56:59,610 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5fab13fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:56:59, skipping insertion in model container [2019-11-23 21:56:59,610 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:56:59" (2/3) ... [2019-11-23 21:56:59,611 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5fab13fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:56:59, skipping insertion in model container [2019-11-23 21:56:59,611 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:56:59" (3/3) ... [2019-11-23 21:56:59,613 INFO L109 eAbstractionObserver]: Analyzing ICFG test29-2.c [2019-11-23 21:56:59,622 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-23 21:56:59,629 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-23 21:56:59,641 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-23 21:56:59,672 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-23 21:56:59,673 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-23 21:56:59,673 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-23 21:56:59,673 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-23 21:56:59,673 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-23 21:56:59,674 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-23 21:56:59,674 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-23 21:56:59,674 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-23 21:56:59,697 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states. [2019-11-23 21:56:59,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-11-23 21:56:59,705 INFO L402 BasicCegarLoop]: Found error trace [2019-11-23 21:56:59,706 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-23 21:56:59,706 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-23 21:56:59,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-23 21:56:59,715 INFO L82 PathProgramCache]: Analyzing trace with hash -594068692, now seen corresponding path program 1 times [2019-11-23 21:56:59,727 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-23 21:56:59,727 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1957162709] [2019-11-23 21:56:59,728 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-23 21:56:59,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-23 21:56:59,966 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-23 21:56:59,967 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1957162709] [2019-11-23 21:56:59,969 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-23 21:56:59,969 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-11-23 21:56:59,971 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [261118543] [2019-11-23 21:56:59,976 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-23 21:56:59,976 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-23 21:56:59,989 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-23 21:56:59,991 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2019-11-23 21:56:59,993 INFO L87 Difference]: Start difference. First operand 13 states. Second operand 7 states. [2019-11-23 21:57:00,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-23 21:57:00,120 INFO L93 Difference]: Finished difference Result 25 states and 32 transitions. [2019-11-23 21:57:00,121 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-23 21:57:00,122 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 9 [2019-11-23 21:57:00,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-23 21:57:00,135 INFO L225 Difference]: With dead ends: 25 [2019-11-23 21:57:00,135 INFO L226 Difference]: Without dead ends: 10 [2019-11-23 21:57:00,142 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2019-11-23 21:57:00,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2019-11-23 21:57:00,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2019-11-23 21:57:00,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2019-11-23 21:57:00,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 9 transitions. [2019-11-23 21:57:00,171 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 9 transitions. Word has length 9 [2019-11-23 21:57:00,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-23 21:57:00,172 INFO L462 AbstractCegarLoop]: Abstraction has 10 states and 9 transitions. [2019-11-23 21:57:00,172 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-23 21:57:00,172 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 9 transitions. [2019-11-23 21:57:00,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-11-23 21:57:00,173 INFO L402 BasicCegarLoop]: Found error trace [2019-11-23 21:57:00,173 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-23 21:57:00,174 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-23 21:57:00,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-23 21:57:00,174 INFO L82 PathProgramCache]: Analyzing trace with hash 1182785712, now seen corresponding path program 1 times [2019-11-23 21:57:00,174 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-23 21:57:00,175 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1569287022] [2019-11-23 21:57:00,175 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-23 21:57:00,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-23 21:57:00,319 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-23 21:57:00,319 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1569287022] [2019-11-23 21:57:00,320 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-23 21:57:00,320 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-11-23 21:57:00,320 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1319794340] [2019-11-23 21:57:00,322 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-23 21:57:00,322 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-23 21:57:00,322 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-23 21:57:00,323 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2019-11-23 21:57:00,323 INFO L87 Difference]: Start difference. First operand 10 states and 9 transitions. Second operand 7 states. [2019-11-23 21:57:00,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-23 21:57:00,365 INFO L93 Difference]: Finished difference Result 10 states and 9 transitions. [2019-11-23 21:57:00,365 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-23 21:57:00,367 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 9 [2019-11-23 21:57:00,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-23 21:57:00,367 INFO L225 Difference]: With dead ends: 10 [2019-11-23 21:57:00,367 INFO L226 Difference]: Without dead ends: 0 [2019-11-23 21:57:00,368 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2019-11-23 21:57:00,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-23 21:57:00,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-23 21:57:00,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-23 21:57:00,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-23 21:57:00,370 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 9 [2019-11-23 21:57:00,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-23 21:57:00,370 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-23 21:57:00,370 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-23 21:57:00,371 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-23 21:57:00,371 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-23 21:57:00,375 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-23 21:57:00,386 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-23 21:57:00,386 INFO L444 ceAbstractionStarter]: For program point L21(line 21) no Hoare annotation was computed. [2019-11-23 21:57:00,386 INFO L444 ceAbstractionStarter]: For program point L21-2(lines 21 23) no Hoare annotation was computed. [2019-11-23 21:57:00,386 INFO L444 ceAbstractionStarter]: For program point L15(line 15) no Hoare annotation was computed. [2019-11-23 21:57:00,387 INFO L444 ceAbstractionStarter]: For program point L15-2(line 15) no Hoare annotation was computed. [2019-11-23 21:57:00,387 INFO L444 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed. [2019-11-23 21:57:00,387 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-23 21:57:00,387 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-23 21:57:00,387 INFO L447 ceAbstractionStarter]: At program point L28(lines 11 29) the Hoare annotation is: true [2019-11-23 21:57:00,388 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 27) no Hoare annotation was computed. [2019-11-23 21:57:00,388 INFO L440 ceAbstractionStarter]: At program point L22(lines 12 29) the Hoare annotation is: false [2019-11-23 21:57:00,388 INFO L444 ceAbstractionStarter]: For program point L16(lines 16 20) no Hoare annotation was computed. [2019-11-23 21:57:00,388 INFO L444 ceAbstractionStarter]: For program point L16-2(lines 16 20) no Hoare annotation was computed. [2019-11-23 21:57:00,398 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 09:57:00 BoogieIcfgContainer [2019-11-23 21:57:00,398 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-23 21:57:00,401 INFO L168 Benchmark]: Toolchain (without parser) took 1462.11 ms. Allocated memory was 137.4 MB in the beginning and 200.8 MB in the end (delta: 63.4 MB). Free memory was 101.2 MB in the beginning and 113.8 MB in the end (delta: -12.6 MB). Peak memory consumption was 50.8 MB. Max. memory is 7.1 GB. [2019-11-23 21:57:00,402 INFO L168 Benchmark]: CDTParser took 0.55 ms. Allocated memory is still 137.4 MB. Free memory is still 118.9 MB. There was no memory consumed. Max. memory is 7.1 GB. [2019-11-23 21:57:00,403 INFO L168 Benchmark]: CACSL2BoogieTranslator took 262.43 ms. Allocated memory is still 137.4 MB. Free memory was 100.8 MB in the beginning and 90.8 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 7.1 GB. [2019-11-23 21:57:00,404 INFO L168 Benchmark]: Boogie Procedure Inliner took 115.31 ms. Allocated memory was 137.4 MB in the beginning and 200.8 MB in the end (delta: 63.4 MB). Free memory was 90.8 MB in the beginning and 178.8 MB in the end (delta: -88.0 MB). Peak memory consumption was 14.4 MB. Max. memory is 7.1 GB. [2019-11-23 21:57:00,405 INFO L168 Benchmark]: Boogie Preprocessor took 20.54 ms. Allocated memory is still 200.8 MB. Free memory was 178.8 MB in the beginning and 177.5 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2019-11-23 21:57:00,406 INFO L168 Benchmark]: RCFGBuilder took 266.69 ms. Allocated memory is still 200.8 MB. Free memory was 177.5 MB in the beginning and 164.7 MB in the end (delta: 12.8 MB). Peak memory consumption was 12.8 MB. Max. memory is 7.1 GB. [2019-11-23 21:57:00,407 INFO L168 Benchmark]: TraceAbstraction took 792.53 ms. Allocated memory is still 200.8 MB. Free memory was 164.7 MB in the beginning and 113.8 MB in the end (delta: 50.8 MB). Peak memory consumption was 50.8 MB. Max. memory is 7.1 GB. [2019-11-23 21:57:00,411 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.55 ms. Allocated memory is still 137.4 MB. Free memory is still 118.9 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 262.43 ms. Allocated memory is still 137.4 MB. Free memory was 100.8 MB in the beginning and 90.8 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 115.31 ms. Allocated memory was 137.4 MB in the beginning and 200.8 MB in the end (delta: 63.4 MB). Free memory was 90.8 MB in the beginning and 178.8 MB in the end (delta: -88.0 MB). Peak memory consumption was 14.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 20.54 ms. Allocated memory is still 200.8 MB. Free memory was 178.8 MB in the beginning and 177.5 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 266.69 ms. Allocated memory is still 200.8 MB. Free memory was 177.5 MB in the beginning and 164.7 MB in the end (delta: 12.8 MB). Peak memory consumption was 12.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 792.53 ms. Allocated memory is still 200.8 MB. Free memory was 164.7 MB in the beginning and 113.8 MB in the end (delta: 50.8 MB). Peak memory consumption was 50.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 27]: 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 - InvariantResult [Line: 12]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 11]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 13 locations, 1 error locations. Result: SAFE, OverallTime: 0.7s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 9 SDtfs, 24 SDslu, 23 SDs, 0 SdLazy, 62 SolverSat, 7 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 17 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=13occurred in iteration=0, 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, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 3 NumberOfFragments, 2 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 18 NumberOfCodeBlocks, 18 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 16 ConstructedInterpolants, 0 QuantifiedInterpolants, 552 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...