/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/loop-lit/gcnr2008.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-6598664 [2019-11-23 22:11:24,538 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-23 22:11:24,540 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-23 22:11:24,551 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2019-11-23 22:11:24,561 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-23 22:11:24,561 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-23 22:11:24,562 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-23 22:11:24,563 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-23 22:11:24,564 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-23 22:11:24,565 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-23 22:11:24,567 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-23 22:11:24,569 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-23 22:11:24,570 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-23 22:11:24,571 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-23 22:11:24,573 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-23 22:11:24,574 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-23 22:11:24,579 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-11-23 22:11:24,591 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-23 22:11:24,591 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-23 22:11:24,594 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-23 22:11:24,595 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 22:11:24,617 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-23 22:11:24,617 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-23 22:11:24,619 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-23 22:11:24,619 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-23 22:11:24,619 INFO L138 SettingsManager]: * Use SBE=true [2019-11-23 22:11:24,620 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-23 22:11:24,620 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-23 22:11:24,620 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-23 22:11:24,620 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-23 22:11:24,620 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-23 22:11:24,621 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-23 22:11:24,621 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-23 22:11:24,622 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-23 22:11:24,622 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-11-23 22:11:24,622 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-23 22:11:24,622 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-23 22:11:24,623 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-23 22:11:24,623 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-23 22:11:24,623 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-23 22:11:24,623 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-23 22:11:24,624 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-23 22:11:24,624 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-23 22:11:24,624 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-23 22:11:24,624 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-23 22:11:24,624 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-23 22:11:24,625 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-23 22:11:24,625 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-23 22:11:24,625 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-23 22:11:24,625 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-23 22:11:24,625 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-23 22:11:24,902 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-23 22:11:24,919 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-23 22:11:24,922 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-23 22:11:24,923 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-23 22:11:24,924 INFO L275 PluginConnector]: CDTParser initialized [2019-11-23 22:11:24,925 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-lit/gcnr2008.i [2019-11-23 22:11:24,995 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1ee3e0c9b/189639a3147b4d14a9acba84e30e0059/FLAG0544d3c9a [2019-11-23 22:11:25,448 INFO L306 CDTParser]: Found 1 translation units. [2019-11-23 22:11:25,449 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-lit/gcnr2008.i [2019-11-23 22:11:25,455 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1ee3e0c9b/189639a3147b4d14a9acba84e30e0059/FLAG0544d3c9a [2019-11-23 22:11:25,853 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1ee3e0c9b/189639a3147b4d14a9acba84e30e0059 [2019-11-23 22:11:25,863 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-23 22:11:25,864 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-23 22:11:25,865 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-23 22:11:25,866 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-23 22:11:25,869 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-23 22:11:25,870 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:11:25" (1/1) ... [2019-11-23 22:11:25,873 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@46d15e00 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:11:25, skipping insertion in model container [2019-11-23 22:11:25,873 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:11:25" (1/1) ... [2019-11-23 22:11:25,880 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-23 22:11:25,899 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-23 22:11:26,090 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-23 22:11:26,096 INFO L203 MainTranslator]: Completed pre-run [2019-11-23 22:11:26,117 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-23 22:11:26,130 INFO L208 MainTranslator]: Completed translation [2019-11-23 22:11:26,130 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:11:26 WrapperNode [2019-11-23 22:11:26,130 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-23 22:11:26,131 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-23 22:11:26,131 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-23 22:11:26,131 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-23 22:11:26,140 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:11:26" (1/1) ... [2019-11-23 22:11:26,146 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:11:26" (1/1) ... [2019-11-23 22:11:26,247 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-23 22:11:26,247 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-23 22:11:26,248 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-23 22:11:26,248 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-23 22:11:26,257 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:11:26" (1/1) ... [2019-11-23 22:11:26,257 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:11:26" (1/1) ... [2019-11-23 22:11:26,258 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:11:26" (1/1) ... [2019-11-23 22:11:26,258 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:11:26" (1/1) ... [2019-11-23 22:11:26,260 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:11:26" (1/1) ... [2019-11-23 22:11:26,264 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:11:26" (1/1) ... [2019-11-23 22:11:26,265 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:11:26" (1/1) ... [2019-11-23 22:11:26,269 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-23 22:11:26,269 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-23 22:11:26,269 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-23 22:11:26,269 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-23 22:11:26,270 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:11:26" (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 22:11:26,328 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-23 22:11:26,328 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-23 22:11:26,516 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-23 22:11:26,517 INFO L284 CfgBuilder]: Removed 7 assume(true) statements. [2019-11-23 22:11:26,518 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:11:26 BoogieIcfgContainer [2019-11-23 22:11:26,518 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-23 22:11:26,520 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-23 22:11:26,520 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-23 22:11:26,524 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-23 22:11:26,525 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 10:11:25" (1/3) ... [2019-11-23 22:11:26,526 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31150c2a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 10:11:26, skipping insertion in model container [2019-11-23 22:11:26,526 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:11:26" (2/3) ... [2019-11-23 22:11:26,526 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31150c2a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 10:11:26, skipping insertion in model container [2019-11-23 22:11:26,526 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:11:26" (3/3) ... [2019-11-23 22:11:26,528 INFO L109 eAbstractionObserver]: Analyzing ICFG gcnr2008.i [2019-11-23 22:11:26,537 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-23 22:11:26,543 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-23 22:11:26,555 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-23 22:11:26,580 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-23 22:11:26,580 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-23 22:11:26,580 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-23 22:11:26,580 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-23 22:11:26,580 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-23 22:11:26,581 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-23 22:11:26,581 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-23 22:11:26,581 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-23 22:11:26,596 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states. [2019-11-23 22:11:26,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-11-23 22:11:26,602 INFO L402 BasicCegarLoop]: Found error trace [2019-11-23 22:11:26,603 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-11-23 22:11:26,604 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-23 22:11:26,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-23 22:11:26,610 INFO L82 PathProgramCache]: Analyzing trace with hash 30662980, now seen corresponding path program 1 times [2019-11-23 22:11:26,617 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-23 22:11:26,617 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1078515943] [2019-11-23 22:11:26,617 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-23 22:11:26,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-23 22:11:26,711 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 22:11:26,712 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1078515943] [2019-11-23 22:11:26,713 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-23 22:11:26,713 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-23 22:11:26,715 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1072722507] [2019-11-23 22:11:26,718 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-23 22:11:26,719 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-23 22:11:26,729 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-23 22:11:26,730 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-23 22:11:26,732 INFO L87 Difference]: Start difference. First operand 16 states. Second operand 2 states. [2019-11-23 22:11:26,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-23 22:11:26,747 INFO L93 Difference]: Finished difference Result 24 states and 30 transitions. [2019-11-23 22:11:26,747 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-23 22:11:26,748 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 5 [2019-11-23 22:11:26,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-23 22:11:26,756 INFO L225 Difference]: With dead ends: 24 [2019-11-23 22:11:26,756 INFO L226 Difference]: Without dead ends: 12 [2019-11-23 22:11:26,759 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-23 22:11:26,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2019-11-23 22:11:26,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2019-11-23 22:11:26,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2019-11-23 22:11:26,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 16 transitions. [2019-11-23 22:11:26,789 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 16 transitions. Word has length 5 [2019-11-23 22:11:26,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-23 22:11:26,790 INFO L462 AbstractCegarLoop]: Abstraction has 12 states and 16 transitions. [2019-11-23 22:11:26,790 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-23 22:11:26,790 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 16 transitions. [2019-11-23 22:11:26,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-11-23 22:11:26,790 INFO L402 BasicCegarLoop]: Found error trace [2019-11-23 22:11:26,790 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2019-11-23 22:11:26,791 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-23 22:11:26,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-23 22:11:26,791 INFO L82 PathProgramCache]: Analyzing trace with hash 921979909, now seen corresponding path program 1 times [2019-11-23 22:11:26,791 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-23 22:11:26,792 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2027306036] [2019-11-23 22:11:26,792 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-23 22:11:26,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-23 22:11:26,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-23 22:11:26,837 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-23 22:11:26,838 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-23 22:11:26,856 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 10:11:26 BoogieIcfgContainer [2019-11-23 22:11:26,857 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-23 22:11:26,859 INFO L168 Benchmark]: Toolchain (without parser) took 994.13 ms. Allocated memory was 137.9 MB in the beginning and 201.9 MB in the end (delta: 64.0 MB). Free memory was 102.1 MB in the beginning and 146.8 MB in the end (delta: -44.7 MB). Peak memory consumption was 19.3 MB. Max. memory is 7.1 GB. [2019-11-23 22:11:26,860 INFO L168 Benchmark]: CDTParser took 0.45 ms. Allocated memory is still 137.9 MB. Free memory was 121.1 MB in the beginning and 120.9 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2019-11-23 22:11:26,861 INFO L168 Benchmark]: CACSL2BoogieTranslator took 265.25 ms. Allocated memory is still 137.9 MB. Free memory was 101.9 MB in the beginning and 92.3 MB in the end (delta: 9.6 MB). Peak memory consumption was 9.6 MB. Max. memory is 7.1 GB. [2019-11-23 22:11:26,862 INFO L168 Benchmark]: Boogie Procedure Inliner took 116.16 ms. Allocated memory was 137.9 MB in the beginning and 201.9 MB in the end (delta: 64.0 MB). Free memory was 92.3 MB in the beginning and 181.1 MB in the end (delta: -88.8 MB). Peak memory consumption was 14.9 MB. Max. memory is 7.1 GB. [2019-11-23 22:11:26,863 INFO L168 Benchmark]: Boogie Preprocessor took 21.54 ms. Allocated memory is still 201.9 MB. Free memory was 181.1 MB in the beginning and 179.3 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 7.1 GB. [2019-11-23 22:11:26,864 INFO L168 Benchmark]: RCFGBuilder took 249.16 ms. Allocated memory is still 201.9 MB. Free memory was 179.3 MB in the beginning and 167.8 MB in the end (delta: 11.6 MB). Peak memory consumption was 11.6 MB. Max. memory is 7.1 GB. [2019-11-23 22:11:26,865 INFO L168 Benchmark]: TraceAbstraction took 336.73 ms. Allocated memory is still 201.9 MB. Free memory was 167.1 MB in the beginning and 146.8 MB in the end (delta: 20.3 MB). Peak memory consumption was 20.3 MB. Max. memory is 7.1 GB. [2019-11-23 22:11:26,871 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.45 ms. Allocated memory is still 137.9 MB. Free memory was 121.1 MB in the beginning and 120.9 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 265.25 ms. Allocated memory is still 137.9 MB. Free memory was 101.9 MB in the beginning and 92.3 MB in the end (delta: 9.6 MB). Peak memory consumption was 9.6 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 116.16 ms. Allocated memory was 137.9 MB in the beginning and 201.9 MB in the end (delta: 64.0 MB). Free memory was 92.3 MB in the beginning and 181.1 MB in the end (delta: -88.8 MB). Peak memory consumption was 14.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 21.54 ms. Allocated memory is still 201.9 MB. Free memory was 181.1 MB in the beginning and 179.3 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 249.16 ms. Allocated memory is still 201.9 MB. Free memory was 179.3 MB in the beginning and 167.8 MB in the end (delta: 11.6 MB). Peak memory consumption was 11.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 336.73 ms. Allocated memory is still 201.9 MB. Free memory was 167.1 MB in the beginning and 146.8 MB in the end (delta: 20.3 MB). Peak memory consumption was 20.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 5]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L11] int x,y,z,w; [L12] EXPR w = 0 [L12] EXPR z = w = 0 [L12] EXPR y = z = w = 0 [L12] x = y = z = w = 0 [L13] COND FALSE !(__VERIFIER_nondet_int() && y < 10000) [L4] COND TRUE !(cond) [L5] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 16 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.2s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 20 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=16occurred 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, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 11 NumberOfCodeBlocks, 11 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 4 ConstructedInterpolants, 0 QuantifiedInterpolants, 16 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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 incorrect! Received shutdown request...