/usr/bin/java -Xmx16000000000 -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-VariableLbe.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 0.2.3-dev-b8dbc81 [2023-01-27 19:35:56,714 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-01-27 19:35:56,716 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-01-27 19:35:56,761 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2023-01-27 19:35:56,794 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-01-27 19:35:56,796 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-01-27 19:35:56,797 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-01-27 19:35:56,799 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-01-27 19:35:56,799 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-01-27 19:35:56,800 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-01-27 19:35:56,801 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-01-27 19:35:56,805 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-01-27 19:35:56,806 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-01-27 19:35:56,807 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-01-27 19:35:56,807 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-01-27 19:35:56,808 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-01-27 19:35:56,814 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2023-01-27 19:35:56,819 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-01-27 19:35:56,820 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-01-27 19:35:56,820 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-01-27 19:35:56,821 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-VariableLbe.epf [2023-01-27 19:35:56,855 INFO L113 SettingsManager]: Loading preferences was successful [2023-01-27 19:35:56,855 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-01-27 19:35:56,856 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-01-27 19:35:56,856 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-01-27 19:35:56,862 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-01-27 19:35:56,863 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-01-27 19:35:56,863 INFO L138 SettingsManager]: * Use SBE=true [2023-01-27 19:35:56,863 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-01-27 19:35:56,863 INFO L138 SettingsManager]: * sizeof long=4 [2023-01-27 19:35:56,863 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-01-27 19:35:56,864 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-01-27 19:35:56,864 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-01-27 19:35:56,864 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-01-27 19:35:56,864 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-01-27 19:35:56,864 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-01-27 19:35:56,865 INFO L138 SettingsManager]: * sizeof long double=12 [2023-01-27 19:35:56,865 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-01-27 19:35:56,865 INFO L138 SettingsManager]: * Use constant arrays=true [2023-01-27 19:35:56,865 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-01-27 19:35:56,865 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-01-27 19:35:56,865 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-01-27 19:35:56,865 INFO L138 SettingsManager]: * To the following directory=./dump/ [2023-01-27 19:35:56,865 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-01-27 19:35:56,865 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-01-27 19:35:56,865 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-01-27 19:35:56,866 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-01-27 19:35:56,866 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-01-27 19:35:56,866 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-01-27 19:35:56,866 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-01-27 19:35:56,866 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-01-27 19:35:56,866 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-01-27 19:35:56,866 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-01-27 19:35:57,221 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-01-27 19:35:57,235 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-01-27 19:35:57,237 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-01-27 19:35:57,238 INFO L271 PluginConnector]: Initializing CDTParser... [2023-01-27 19:35:57,238 INFO L275 PluginConnector]: CDTParser initialized [2023-01-27 19:35:57,239 INFO L432 ainManager$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 [2023-01-27 19:35:58,719 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-01-27 19:35:59,037 INFO L351 CDTParser]: Found 1 translation units. [2023-01-27 19:35:59,038 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/36-apron_41-threadenter-no-locals_unknown_1_pos.i [2023-01-27 19:35:59,065 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/053a2277d/93b1d1cc51b34e2d824d1b807e00c5d9/FLAG3b3b352cf [2023-01-27 19:35:59,099 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/053a2277d/93b1d1cc51b34e2d824d1b807e00c5d9 [2023-01-27 19:35:59,101 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-01-27 19:35:59,102 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2023-01-27 19:35:59,104 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-01-27 19:35:59,105 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-01-27 19:35:59,107 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-01-27 19:35:59,107 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.01 07:35:59" (1/1) ... [2023-01-27 19:35:59,108 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2070bdb0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 07:35:59, skipping insertion in model container [2023-01-27 19:35:59,108 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.01 07:35:59" (1/1) ... [2023-01-27 19:35:59,121 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-01-27 19:35:59,174 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-01-27 19:35:59,409 WARN L247 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] [2023-01-27 19:35:59,607 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-01-27 19:35:59,614 INFO L203 MainTranslator]: Completed pre-run [2023-01-27 19:35:59,634 WARN L247 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] [2023-01-27 19:35:59,667 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-01-27 19:35:59,692 INFO L208 MainTranslator]: Completed translation [2023-01-27 19:35:59,693 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 07:35:59 WrapperNode [2023-01-27 19:35:59,693 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-01-27 19:35:59,694 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-01-27 19:35:59,694 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-01-27 19:35:59,694 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-01-27 19:35:59,699 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 07:35:59" (1/1) ... [2023-01-27 19:35:59,716 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 07:35:59" (1/1) ... [2023-01-27 19:35:59,731 INFO L138 Inliner]: procedures = 162, calls = 12, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 36 [2023-01-27 19:35:59,731 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-01-27 19:35:59,732 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-01-27 19:35:59,732 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-01-27 19:35:59,732 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-01-27 19:35:59,737 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 07:35:59" (1/1) ... [2023-01-27 19:35:59,737 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 07:35:59" (1/1) ... [2023-01-27 19:35:59,764 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 07:35:59" (1/1) ... [2023-01-27 19:35:59,765 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 07:35:59" (1/1) ... [2023-01-27 19:35:59,775 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 07:35:59" (1/1) ... [2023-01-27 19:35:59,776 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 07:35:59" (1/1) ... [2023-01-27 19:35:59,778 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 07:35:59" (1/1) ... [2023-01-27 19:35:59,778 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 07:35:59" (1/1) ... [2023-01-27 19:35:59,783 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-01-27 19:35:59,784 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-01-27 19:35:59,784 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-01-27 19:35:59,784 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-01-27 19:35:59,785 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 07:35:59" (1/1) ... [2023-01-27 19:35:59,789 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-01-27 19:35:59,797 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-27 19:35:59,826 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) [2023-01-27 19:35:59,905 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 [2023-01-27 19:35:59,930 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-01-27 19:35:59,930 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-01-27 19:35:59,930 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-01-27 19:35:59,930 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-01-27 19:35:59,930 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-01-27 19:35:59,930 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-01-27 19:35:59,930 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-01-27 19:35:59,930 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-01-27 19:35:59,930 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-01-27 19:35:59,932 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-01-27 19:36:00,147 INFO L236 CfgBuilder]: Building ICFG [2023-01-27 19:36:00,148 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-01-27 19:36:00,306 INFO L277 CfgBuilder]: Performing block encoding [2023-01-27 19:36:00,310 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-01-27 19:36:00,311 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-01-27 19:36:00,312 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.01 07:36:00 BoogieIcfgContainer [2023-01-27 19:36:00,312 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-01-27 19:36:00,314 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-01-27 19:36:00,314 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-01-27 19:36:00,316 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-01-27 19:36:00,316 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.01 07:35:59" (1/3) ... [2023-01-27 19:36:00,344 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52817cab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.01 07:36:00, skipping insertion in model container [2023-01-27 19:36:00,344 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 07:35:59" (2/3) ... [2023-01-27 19:36:00,344 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52817cab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.01 07:36:00, skipping insertion in model container [2023-01-27 19:36:00,344 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.01 07:36:00" (3/3) ... [2023-01-27 19:36:00,345 INFO L112 eAbstractionObserver]: Analyzing ICFG 36-apron_41-threadenter-no-locals_unknown_1_pos.i [2023-01-27 19:36:00,358 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-01-27 19:36:00,358 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-01-27 19:36:00,358 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-01-27 19:36:00,457 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-27 19:36:00,511 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 41 places, 38 transitions, 81 flow [2023-01-27 19:36:00,561 INFO L130 PetriNetUnfolder]: 1/37 cut-off events. [2023-01-27 19:36:00,562 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-01-27 19:36:00,564 INFO L83 FinitePrefix]: Finished finitePrefix Result has 41 conditions, 37 events. 1/37 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 20 event pairs, 0 based on Foata normal form. 0/35 useless extension candidates. Maximal degree in co-relation 22. Up to 2 conditions per place. [2023-01-27 19:36:00,564 INFO L82 GeneralOperation]: Start removeDead. Operand has 41 places, 38 transitions, 81 flow [2023-01-27 19:36:00,566 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 36 places, 32 transitions, 67 flow [2023-01-27 19:36:00,595 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-27 19:36:00,601 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 36 places, 32 transitions, 67 flow [2023-01-27 19:36:00,603 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 36 places, 32 transitions, 67 flow [2023-01-27 19:36:00,604 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 36 places, 32 transitions, 67 flow [2023-01-27 19:36:00,610 INFO L130 PetriNetUnfolder]: 0/32 cut-off events. [2023-01-27 19:36:00,610 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-01-27 19:36:00,611 INFO L83 FinitePrefix]: Finished finitePrefix Result has 36 conditions, 32 events. 0/32 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 13 event pairs, 0 based on Foata normal form. 0/32 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2023-01-27 19:36:00,611 INFO L119 LiptonReduction]: Number of co-enabled transitions 140 [2023-01-27 19:36:01,904 INFO L134 LiptonReduction]: Checked pairs total: 88 [2023-01-27 19:36:01,905 INFO L136 LiptonReduction]: Total number of compositions: 28 [2023-01-27 19:36:01,918 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-01-27 19:36:01,924 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;@3973668c, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-27 19:36:01,924 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2023-01-27 19:36:01,928 INFO L130 PetriNetUnfolder]: 0/3 cut-off events. [2023-01-27 19:36:01,928 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-01-27 19:36:01,928 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 19:36:01,929 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-01-27 19:36:01,929 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-01-27 19:36:01,949 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 19:36:01,949 INFO L85 PathProgramCache]: Analyzing trace with hash 153046, now seen corresponding path program 1 times [2023-01-27 19:36:01,956 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 19:36:01,956 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1028285495] [2023-01-27 19:36:01,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 19:36:01,957 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 19:36:02,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-27 19:36:02,120 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-27 19:36:02,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-27 19:36:02,186 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-27 19:36:02,201 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-27 19:36:02,202 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2023-01-27 19:36:02,203 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining) [2023-01-27 19:36:02,204 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 3 remaining) [2023-01-27 19:36:02,204 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-01-27 19:36:02,204 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-27 19:36:02,210 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-01-27 19:36:02,211 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-01-27 19:36:02,233 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.01 07:36:02 BasicIcfg [2023-01-27 19:36:02,233 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-01-27 19:36:02,234 INFO L158 Benchmark]: Toolchain (without parser) took 3131.78ms. Allocated memory is still 432.0MB. Free memory was 377.1MB in the beginning and 342.4MB in the end (delta: 34.7MB). Peak memory consumption was 36.7MB. Max. memory is 16.0GB. [2023-01-27 19:36:02,235 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 314.6MB. Free memory is still 263.2MB. There was no memory consumed. Max. memory is 16.0GB. [2023-01-27 19:36:02,235 INFO L158 Benchmark]: CACSL2BoogieTranslator took 589.19ms. Allocated memory is still 432.0MB. Free memory was 377.1MB in the beginning and 358.8MB in the end (delta: 18.3MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. [2023-01-27 19:36:02,238 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.96ms. Allocated memory is still 432.0MB. Free memory was 358.8MB in the beginning and 357.1MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-01-27 19:36:02,239 INFO L158 Benchmark]: Boogie Preprocessor took 51.26ms. Allocated memory is still 432.0MB. Free memory was 357.1MB in the beginning and 355.6MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-01-27 19:36:02,252 INFO L158 Benchmark]: RCFGBuilder took 528.14ms. Allocated memory is still 432.0MB. Free memory was 355.6MB in the beginning and 344.6MB in the end (delta: 10.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.0GB. [2023-01-27 19:36:02,253 INFO L158 Benchmark]: TraceAbstraction took 1919.76ms. Allocated memory is still 432.0MB. Free memory was 344.2MB in the beginning and 342.4MB in the end (delta: 1.8MB). Peak memory consumption was 3.2MB. Max. memory is 16.0GB. [2023-01-27 19:36:02,258 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 314.6MB. Free memory is still 263.2MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 589.19ms. Allocated memory is still 432.0MB. Free memory was 377.1MB in the beginning and 358.8MB in the end (delta: 18.3MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 36.96ms. Allocated memory is still 432.0MB. Free memory was 358.8MB in the beginning and 357.1MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 51.26ms. Allocated memory is still 432.0MB. Free memory was 357.1MB in the beginning and 355.6MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 528.14ms. Allocated memory is still 432.0MB. Free memory was 355.6MB in the beginning and 344.6MB in the end (delta: 10.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.0GB. * TraceAbstraction took 1919.76ms. Allocated memory is still 432.0MB. Free memory was 344.2MB in the beginning and 342.4MB in the end (delta: 1.8MB). Peak memory consumption was 3.2MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.3s, 36 PlacesBefore, 8 PlacesAfterwards, 32 TransitionsBefore, 4 TransitionsAfterwards, 140 CoEnabledTransitionPairs, 5 FixpointIterations, 13 TrivialSequentialCompositions, 15 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 28 TotalNumberOfCompositions, 88 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 88, independent: 88, independent conditional: 0, independent unconditional: 88, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 69, independent: 69, independent conditional: 0, independent unconditional: 69, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 88, independent: 19, independent conditional: 0, independent unconditional: 19, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 69, unknown conditional: 0, unknown unconditional: 69] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - 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; [L689] 0 pthread_t id; [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(); [L684] CALL 1 __VERIFIER_assert(x == 3) [L19] COND TRUE 1 !(cond) [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, 54 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: 1.7s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.4s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=11occurred 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, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 3 NumberOfCodeBlocks, 3 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! [2023-01-27 19:36:02,275 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...