/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/loops/while_infinite_loop_4.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-6598664 [2019-11-23 22:15:59,746 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-23 22:15:59,748 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-23 22:15:59,762 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2019-11-23 22:15:59,821 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 22:15:59,835 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-23 22:15:59,835 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-23 22:15:59,836 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-23 22:15:59,837 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-23 22:15:59,837 INFO L138 SettingsManager]: * Use SBE=true [2019-11-23 22:15:59,837 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-23 22:15:59,837 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-23 22:15:59,838 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-23 22:15:59,838 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-23 22:15:59,838 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-23 22:15:59,838 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-23 22:15:59,838 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-23 22:15:59,838 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-23 22:15:59,839 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-11-23 22:15:59,839 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-23 22:15:59,839 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-23 22:15:59,839 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-23 22:15:59,839 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-23 22:15:59,840 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-23 22:15:59,840 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-23 22:15:59,840 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-23 22:15:59,840 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-23 22:15:59,841 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-23 22:15:59,841 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-23 22:15:59,841 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-23 22:15:59,841 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-23 22:15:59,841 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-23 22:15:59,841 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-23 22:15:59,842 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-23 22:15:59,842 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-23 22:16:00,117 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-23 22:16:00,134 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-23 22:16:00,138 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-23 22:16:00,139 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-23 22:16:00,140 INFO L275 PluginConnector]: CDTParser initialized [2019-11-23 22:16:00,141 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/while_infinite_loop_4.c [2019-11-23 22:16:00,218 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9cad5670a/da2a403be2394be58036e444c9088e68/FLAGb05a38e96 [2019-11-23 22:16:00,684 INFO L306 CDTParser]: Found 1 translation units. [2019-11-23 22:16:00,685 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/while_infinite_loop_4.c [2019-11-23 22:16:00,693 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9cad5670a/da2a403be2394be58036e444c9088e68/FLAGb05a38e96 [2019-11-23 22:16:01,091 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9cad5670a/da2a403be2394be58036e444c9088e68 [2019-11-23 22:16:01,099 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-23 22:16:01,100 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-23 22:16:01,101 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-23 22:16:01,101 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-23 22:16:01,104 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-23 22:16:01,105 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:16:01" (1/1) ... [2019-11-23 22:16:01,108 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@38a1f4b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:16:01, skipping insertion in model container [2019-11-23 22:16:01,108 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:16:01" (1/1) ... [2019-11-23 22:16:01,115 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-23 22:16:01,129 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-23 22:16:01,294 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-23 22:16:01,299 INFO L203 MainTranslator]: Completed pre-run [2019-11-23 22:16:01,310 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-23 22:16:01,322 INFO L208 MainTranslator]: Completed translation [2019-11-23 22:16:01,323 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:16:01 WrapperNode [2019-11-23 22:16:01,323 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-23 22:16:01,324 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-23 22:16:01,324 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-23 22:16:01,324 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-23 22:16:01,331 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:16:01" (1/1) ... [2019-11-23 22:16:01,335 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:16:01" (1/1) ... [2019-11-23 22:16:01,434 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-23 22:16:01,435 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-23 22:16:01,435 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-23 22:16:01,435 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-23 22:16:01,442 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:16:01" (1/1) ... [2019-11-23 22:16:01,442 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:16:01" (1/1) ... [2019-11-23 22:16:01,443 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:16:01" (1/1) ... [2019-11-23 22:16:01,443 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:16:01" (1/1) ... [2019-11-23 22:16:01,445 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:16:01" (1/1) ... [2019-11-23 22:16:01,450 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:16:01" (1/1) ... [2019-11-23 22:16:01,451 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:16:01" (1/1) ... [2019-11-23 22:16:01,452 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-23 22:16:01,453 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-23 22:16:01,453 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-23 22:16:01,453 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-23 22:16:01,454 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:16:01" (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 22:16:01,510 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-23 22:16:01,510 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-23 22:16:01,660 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-23 22:16:01,660 INFO L284 CfgBuilder]: Removed 12 assume(true) statements. [2019-11-23 22:16:01,661 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:16:01 BoogieIcfgContainer [2019-11-23 22:16:01,661 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-23 22:16:01,662 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-23 22:16:01,662 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-23 22:16:01,665 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-23 22:16:01,665 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 10:16:01" (1/3) ... [2019-11-23 22:16:01,666 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6becac8c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 10:16:01, skipping insertion in model container [2019-11-23 22:16:01,666 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:16:01" (2/3) ... [2019-11-23 22:16:01,667 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6becac8c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 10:16:01, skipping insertion in model container [2019-11-23 22:16:01,667 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:16:01" (3/3) ... [2019-11-23 22:16:01,669 INFO L109 eAbstractionObserver]: Analyzing ICFG while_infinite_loop_4.c [2019-11-23 22:16:01,678 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-23 22:16:01,685 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2019-11-23 22:16:01,696 INFO L249 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2019-11-23 22:16:01,723 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-23 22:16:01,723 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-23 22:16:01,723 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-23 22:16:01,724 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-23 22:16:01,724 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-23 22:16:01,724 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-23 22:16:01,724 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-23 22:16:01,724 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-23 22:16:01,740 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states. [2019-11-23 22:16:01,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-11-23 22:16:01,746 INFO L402 BasicCegarLoop]: Found error trace [2019-11-23 22:16:01,747 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2019-11-23 22:16:01,747 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-23 22:16:01,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-23 22:16:01,754 INFO L82 PathProgramCache]: Analyzing trace with hash 890491815, now seen corresponding path program 1 times [2019-11-23 22:16:01,763 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-23 22:16:01,763 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1900947449] [2019-11-23 22:16:01,764 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-23 22:16:01,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-23 22:16:01,851 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 22:16:01,852 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1900947449] [2019-11-23 22:16:01,852 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-23 22:16:01,853 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-23 22:16:01,854 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2064057449] [2019-11-23 22:16:01,858 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-23 22:16:01,858 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-23 22:16:01,870 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-23 22:16:01,871 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-23 22:16:01,873 INFO L87 Difference]: Start difference. First operand 16 states. Second operand 2 states. [2019-11-23 22:16:01,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-23 22:16:01,896 INFO L93 Difference]: Finished difference Result 22 states and 32 transitions. [2019-11-23 22:16:01,897 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-23 22:16:01,898 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 6 [2019-11-23 22:16:01,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-23 22:16:01,907 INFO L225 Difference]: With dead ends: 22 [2019-11-23 22:16:01,908 INFO L226 Difference]: Without dead ends: 8 [2019-11-23 22:16:01,911 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 22:16:01,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2019-11-23 22:16:01,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2019-11-23 22:16:01,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2019-11-23 22:16:01,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions. [2019-11-23 22:16:01,941 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 8 transitions. Word has length 6 [2019-11-23 22:16:01,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-23 22:16:01,941 INFO L462 AbstractCegarLoop]: Abstraction has 8 states and 8 transitions. [2019-11-23 22:16:01,941 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-23 22:16:01,941 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions. [2019-11-23 22:16:01,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-11-23 22:16:01,942 INFO L402 BasicCegarLoop]: Found error trace [2019-11-23 22:16:01,942 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-23 22:16:01,942 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-23 22:16:01,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-23 22:16:01,943 INFO L82 PathProgramCache]: Analyzing trace with hash 1810848111, now seen corresponding path program 1 times [2019-11-23 22:16:01,943 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-23 22:16:01,944 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [326301254] [2019-11-23 22:16:01,944 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-23 22:16:01,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-23 22:16:01,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-23 22:16:01,982 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-23 22:16:01,983 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-23 22:16:02,005 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 10:16:02 BoogieIcfgContainer [2019-11-23 22:16:02,005 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-23 22:16:02,008 INFO L168 Benchmark]: Toolchain (without parser) took 906.69 ms. Allocated memory was 138.4 MB in the beginning and 201.9 MB in the end (delta: 63.4 MB). Free memory was 103.2 MB in the beginning and 148.5 MB in the end (delta: -45.3 MB). Peak memory consumption was 18.2 MB. Max. memory is 7.1 GB. [2019-11-23 22:16:02,009 INFO L168 Benchmark]: CDTParser took 0.75 ms. Allocated memory is still 138.4 MB. Free memory is still 121.2 MB. There was no memory consumed. Max. memory is 7.1 GB. [2019-11-23 22:16:02,010 INFO L168 Benchmark]: CACSL2BoogieTranslator took 222.40 ms. Allocated memory is still 138.4 MB. Free memory was 103.2 MB in the beginning and 93.4 MB in the end (delta: 9.8 MB). Peak memory consumption was 9.8 MB. Max. memory is 7.1 GB. [2019-11-23 22:16:02,011 INFO L168 Benchmark]: Boogie Procedure Inliner took 110.78 ms. Allocated memory was 138.4 MB in the beginning and 201.9 MB in the end (delta: 63.4 MB). Free memory was 93.4 MB in the beginning and 180.7 MB in the end (delta: -87.3 MB). Peak memory consumption was 14.9 MB. Max. memory is 7.1 GB. [2019-11-23 22:16:02,012 INFO L168 Benchmark]: Boogie Preprocessor took 17.54 ms. Allocated memory is still 201.9 MB. Free memory was 180.7 MB in the beginning and 179.8 MB in the end (delta: 967.9 kB). Peak memory consumption was 967.9 kB. Max. memory is 7.1 GB. [2019-11-23 22:16:02,012 INFO L168 Benchmark]: RCFGBuilder took 208.77 ms. Allocated memory is still 201.9 MB. Free memory was 179.8 MB in the beginning and 168.8 MB in the end (delta: 11.0 MB). Peak memory consumption was 11.0 MB. Max. memory is 7.1 GB. [2019-11-23 22:16:02,013 INFO L168 Benchmark]: TraceAbstraction took 343.17 ms. Allocated memory is still 201.9 MB. Free memory was 168.8 MB in the beginning and 148.5 MB in the end (delta: 20.3 MB). Peak memory consumption was 20.3 MB. Max. memory is 7.1 GB. [2019-11-23 22:16:02,017 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.75 ms. Allocated memory is still 138.4 MB. Free memory is still 121.2 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 222.40 ms. Allocated memory is still 138.4 MB. Free memory was 103.2 MB in the beginning and 93.4 MB in the end (delta: 9.8 MB). Peak memory consumption was 9.8 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 110.78 ms. Allocated memory was 138.4 MB in the beginning and 201.9 MB in the end (delta: 63.4 MB). Free memory was 93.4 MB in the beginning and 180.7 MB in the end (delta: -87.3 MB). Peak memory consumption was 14.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 17.54 ms. Allocated memory is still 201.9 MB. Free memory was 180.7 MB in the beginning and 179.8 MB in the end (delta: 967.9 kB). Peak memory consumption was 967.9 kB. Max. memory is 7.1 GB. * RCFGBuilder took 208.77 ms. Allocated memory is still 201.9 MB. Free memory was 179.8 MB in the beginning and 168.8 MB in the end (delta: 11.0 MB). Peak memory consumption was 11.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 343.17 ms. Allocated memory is still 201.9 MB. Free memory was 168.8 MB in the beginning and 148.5 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: [L10] int x=0; VAL [x=0] [L24] COND TRUE 1 VAL [x=0] [L14] COND TRUE 1 [L15] x=1 VAL [x=1] [L4] COND TRUE !(cond) VAL [x=1] [L5] __VERIFIER_error() VAL [x=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 16 locations, 2 error locations. Result: UNSAFE, OverallTime: 0.2s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 8 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, 13 NumberOfCodeBlocks, 13 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 5 ConstructedInterpolants, 0 QuantifiedInterpolants, 25 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...