/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/goblint-regression/36-apron_41-threadenter-no-locals_unknown_1_pos.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-?-3902331-m [2022-09-20 22:38:25,517 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-09-20 22:38:25,518 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-09-20 22:38:25,538 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-09-20 22:38:25,538 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-09-20 22:38:25,539 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-09-20 22:38:25,540 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-09-20 22:38:25,541 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-09-20 22:38:25,544 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-09-20 22:38:25,548 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-09-20 22:38:25,548 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-09-20 22:38:25,550 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-09-20 22:38:25,550 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-09-20 22:38:25,552 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-09-20 22:38:25,553 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-09-20 22:38:25,554 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-09-20 22:38:25,555 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-09-20 22:38:25,555 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-09-20 22:38:25,560 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-09-20 22:38:25,564 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-09-20 22:38:25,565 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-09-20 22:38:25,566 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-09-20 22:38:25,568 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-09-20 22:38:25,568 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-09-20 22:38:25,574 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-09-20 22:38:25,578 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-09-20 22:38:25,579 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-09-20 22:38:25,579 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-09-20 22:38:25,583 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf [2022-09-20 22:38:25,611 INFO L113 SettingsManager]: Loading preferences was successful [2022-09-20 22:38:25,611 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-09-20 22:38:25,612 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-09-20 22:38:25,612 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-09-20 22:38:25,613 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-09-20 22:38:25,613 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-09-20 22:38:25,613 INFO L138 SettingsManager]: * Use SBE=true [2022-09-20 22:38:25,613 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-09-20 22:38:25,613 INFO L138 SettingsManager]: * sizeof long=4 [2022-09-20 22:38:25,613 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-09-20 22:38:25,614 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-09-20 22:38:25,614 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-09-20 22:38:25,614 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-09-20 22:38:25,614 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-09-20 22:38:25,614 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-09-20 22:38:25,614 INFO L138 SettingsManager]: * sizeof long double=12 [2022-09-20 22:38:25,614 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-09-20 22:38:25,614 INFO L138 SettingsManager]: * Use constant arrays=true [2022-09-20 22:38:25,615 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-09-20 22:38:25,615 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-09-20 22:38:25,615 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-09-20 22:38:25,615 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-09-20 22:38:25,615 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-09-20 22:38:25,615 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-20 22:38:25,615 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-09-20 22:38:25,615 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-09-20 22:38:25,616 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-09-20 22:38:25,616 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-09-20 22:38:25,616 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-09-20 22:38:25,617 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-09-20 22:38:25,617 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-09-20 22:38:25,617 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-09-20 22:38:25,823 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-09-20 22:38:25,844 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-09-20 22:38:25,845 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-09-20 22:38:25,846 INFO L271 PluginConnector]: Initializing CDTParser... [2022-09-20 22:38:25,846 INFO L275 PluginConnector]: CDTParser initialized [2022-09-20 22:38:25,847 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/36-apron_41-threadenter-no-locals_unknown_1_pos.i [2022-09-20 22:38:25,884 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c12c96161/8fb1efd9038f49eaa04ed6a72cbb69b5/FLAGe4e54404e [2022-09-20 22:38:26,309 INFO L306 CDTParser]: Found 1 translation units. [2022-09-20 22:38:26,310 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/36-apron_41-threadenter-no-locals_unknown_1_pos.i [2022-09-20 22:38:26,321 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c12c96161/8fb1efd9038f49eaa04ed6a72cbb69b5/FLAGe4e54404e [2022-09-20 22:38:26,335 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c12c96161/8fb1efd9038f49eaa04ed6a72cbb69b5 [2022-09-20 22:38:26,337 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-09-20 22:38:26,338 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-09-20 22:38:26,340 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-09-20 22:38:26,340 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-09-20 22:38:26,342 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-09-20 22:38:26,343 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 10:38:26" (1/1) ... [2022-09-20 22:38:26,343 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@38376f6a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 10:38:26, skipping insertion in model container [2022-09-20 22:38:26,344 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 10:38:26" (1/1) ... [2022-09-20 22:38:26,348 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-09-20 22:38:26,393 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-09-20 22:38:26,529 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/36-apron_41-threadenter-no-locals_unknown_1_pos.i[1102,1115] [2022-09-20 22:38:26,649 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-09-20 22:38:26,656 INFO L203 MainTranslator]: Completed pre-run [2022-09-20 22:38:26,664 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/36-apron_41-threadenter-no-locals_unknown_1_pos.i[1102,1115] [2022-09-20 22:38:26,685 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-09-20 22:38:26,710 INFO L208 MainTranslator]: Completed translation [2022-09-20 22:38:26,710 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 10:38:26 WrapperNode [2022-09-20 22:38:26,711 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-09-20 22:38:26,711 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-09-20 22:38:26,711 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-09-20 22:38:26,711 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-09-20 22:38:26,716 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 10:38:26" (1/1) ... [2022-09-20 22:38:26,724 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 10:38:26" (1/1) ... [2022-09-20 22:38:26,736 INFO L138 Inliner]: procedures = 162, calls = 12, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 35 [2022-09-20 22:38:26,736 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-09-20 22:38:26,737 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-09-20 22:38:26,737 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-09-20 22:38:26,737 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-09-20 22:38:26,742 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 10:38:26" (1/1) ... [2022-09-20 22:38:26,742 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 10:38:26" (1/1) ... [2022-09-20 22:38:26,743 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 10:38:26" (1/1) ... [2022-09-20 22:38:26,744 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 10:38:26" (1/1) ... [2022-09-20 22:38:26,746 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 10:38:26" (1/1) ... [2022-09-20 22:38:26,747 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 10:38:26" (1/1) ... [2022-09-20 22:38:26,748 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 10:38:26" (1/1) ... [2022-09-20 22:38:26,749 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-09-20 22:38:26,750 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-09-20 22:38:26,750 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-09-20 22:38:26,750 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-09-20 22:38:26,756 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 10:38:26" (1/1) ... [2022-09-20 22:38:26,761 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-20 22:38:26,772 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-20 22:38:26,797 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-09-20 22:38:26,825 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-09-20 22:38:26,865 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-09-20 22:38:26,865 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-09-20 22:38:26,865 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-09-20 22:38:26,865 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-09-20 22:38:26,865 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-09-20 22:38:26,865 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-09-20 22:38:26,865 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-09-20 22:38:26,865 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-09-20 22:38:26,866 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-09-20 22:38:26,866 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-09-20 22:38:26,981 INFO L234 CfgBuilder]: Building ICFG [2022-09-20 22:38:26,982 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-09-20 22:38:27,095 INFO L275 CfgBuilder]: Performing block encoding [2022-09-20 22:38:27,099 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-09-20 22:38:27,099 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-09-20 22:38:27,100 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 10:38:27 BoogieIcfgContainer [2022-09-20 22:38:27,101 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-09-20 22:38:27,102 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-09-20 22:38:27,102 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-09-20 22:38:27,106 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-09-20 22:38:27,106 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 10:38:26" (1/3) ... [2022-09-20 22:38:27,106 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54eb4407 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 10:38:27, skipping insertion in model container [2022-09-20 22:38:27,107 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 10:38:26" (2/3) ... [2022-09-20 22:38:27,107 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54eb4407 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 10:38:27, skipping insertion in model container [2022-09-20 22:38:27,107 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 10:38:27" (3/3) ... [2022-09-20 22:38:27,108 INFO L112 eAbstractionObserver]: Analyzing ICFG 36-apron_41-threadenter-no-locals_unknown_1_pos.i [2022-09-20 22:38:27,121 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-09-20 22:38:27,121 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-09-20 22:38:27,121 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-09-20 22:38:27,155 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-09-20 22:38:27,185 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 46 places, 43 transitions, 91 flow [2022-09-20 22:38:27,217 INFO L130 PetriNetUnfolder]: 1/42 cut-off events. [2022-09-20 22:38:27,217 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-09-20 22:38:27,220 INFO L83 FinitePrefix]: Finished finitePrefix Result has 46 conditions, 42 events. 1/42 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 22 event pairs, 0 based on Foata normal form. 0/40 useless extension candidates. Maximal degree in co-relation 24. Up to 2 conditions per place. [2022-09-20 22:38:27,220 INFO L82 GeneralOperation]: Start removeDead. Operand has 46 places, 43 transitions, 91 flow [2022-09-20 22:38:27,223 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 40 places, 36 transitions, 75 flow [2022-09-20 22:38:27,237 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-09-20 22:38:27,243 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@58557f6d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-09-20 22:38:27,243 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-09-20 22:38:27,259 INFO L130 PetriNetUnfolder]: 0/35 cut-off events. [2022-09-20 22:38:27,259 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-09-20 22:38:27,259 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-20 22:38:27,260 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-20 22:38:27,260 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-09-20 22:38:27,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-20 22:38:27,266 INFO L85 PathProgramCache]: Analyzing trace with hash 1764370604, now seen corresponding path program 1 times [2022-09-20 22:38:27,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-20 22:38:27,273 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1692412666] [2022-09-20 22:38:27,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-20 22:38:27,273 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-20 22:38:27,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-20 22:38:27,381 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-09-20 22:38:27,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-20 22:38:27,426 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-09-20 22:38:27,428 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-09-20 22:38:27,429 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2022-09-20 22:38:27,432 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining) [2022-09-20 22:38:27,432 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 3 remaining) [2022-09-20 22:38:27,433 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-09-20 22:38:27,433 INFO L444 BasicCegarLoop]: Path program histogram: [1] [2022-09-20 22:38:27,439 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-09-20 22:38:27,439 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-09-20 22:38:27,467 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.09 10:38:27 BasicIcfg [2022-09-20 22:38:27,467 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-09-20 22:38:27,469 INFO L158 Benchmark]: Toolchain (without parser) took 1130.32ms. Allocated memory is still 186.6MB. Free memory was 163.6MB in the beginning and 120.6MB in the end (delta: 43.1MB). Peak memory consumption was 41.2MB. Max. memory is 8.0GB. [2022-09-20 22:38:27,470 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 186.6MB. Free memory is still 151.8MB. There was no memory consumed. Max. memory is 8.0GB. [2022-09-20 22:38:27,470 INFO L158 Benchmark]: CACSL2BoogieTranslator took 370.70ms. Allocated memory is still 186.6MB. Free memory was 163.3MB in the beginning and 155.8MB in the end (delta: 7.5MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. [2022-09-20 22:38:27,471 INFO L158 Benchmark]: Boogie Procedure Inliner took 24.90ms. Allocated memory is still 186.6MB. Free memory was 155.8MB in the beginning and 154.1MB in the end (delta: 1.7MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-09-20 22:38:27,472 INFO L158 Benchmark]: Boogie Preprocessor took 13.01ms. Allocated memory is still 186.6MB. Free memory was 154.1MB in the beginning and 152.6MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-09-20 22:38:27,475 INFO L158 Benchmark]: RCFGBuilder took 350.52ms. Allocated memory is still 186.6MB. Free memory was 152.6MB in the beginning and 142.1MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2022-09-20 22:38:27,476 INFO L158 Benchmark]: TraceAbstraction took 365.97ms. Allocated memory is still 186.6MB. Free memory was 141.7MB in the beginning and 120.6MB in the end (delta: 21.1MB). Peak memory consumption was 21.0MB. Max. memory is 8.0GB. [2022-09-20 22:38:27,479 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 186.6MB. Free memory is still 151.8MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 370.70ms. Allocated memory is still 186.6MB. Free memory was 163.3MB in the beginning and 155.8MB in the end (delta: 7.5MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 24.90ms. Allocated memory is still 186.6MB. Free memory was 155.8MB in the beginning and 154.1MB in the end (delta: 1.7MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 13.01ms. Allocated memory is still 186.6MB. Free memory was 154.1MB in the beginning and 152.6MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 350.52ms. Allocated memory is still 186.6MB. Free memory was 152.6MB in the beginning and 142.1MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * TraceAbstraction took 365.97ms. Allocated memory is still 186.6MB. Free memory was 141.7MB in the beginning and 120.6MB in the end (delta: 21.1MB). Peak memory consumption was 21.0MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 19]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L688] 0 int x = 3; VAL [x=3] [L689] 0 pthread_t id; VAL [id={3:0}, x=3] [L690] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [id={3:0}, pthread_create(&id, ((void *)0), t_fun, ((void *)0))=-1, x=3] [L683] 1 int x = __VERIFIER_nondet_int(); VAL [__VERIFIER_nondet_int()=0, arg={0:0}, arg={0:0}, x=0] [L684] CALL 1 __VERIFIER_assert(x == 3) [L19] COND TRUE 1 !(cond) VAL [\old(cond)=0, cond=0] [L19] 1 reach_error() VAL [\old(cond)=0, cond=0] - UnprovableResult [Line: 690]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 60 locations, 3 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 0.3s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=75occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 28 NumberOfCodeBlocks, 28 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 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 incorrect! [2022-09-20 22:38:27,531 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...