/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-RepeatedSemanticLbe.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-wip.dk.repeated-lipton-a802222-m [2022-12-13 01:16:20,987 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 01:16:20,988 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 01:16:21,007 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-12-13 01:16:21,014 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 01:16:21,016 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 01:16:21,018 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 01:16:21,020 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 01:16:21,020 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 01:16:21,021 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 01:16:21,024 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 01:16:21,031 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 01:16:21,034 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 01:16:21,035 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 01:16:21,036 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 01:16:21,037 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 01:16:21,039 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-12-13 01:16:21,043 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 01:16:21,044 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 01:16:21,044 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 01:16:21,048 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-RepeatedSemanticLbe.epf [2022-12-13 01:16:21,077 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 01:16:21,077 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 01:16:21,079 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 01:16:21,079 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 01:16:21,079 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 01:16:21,080 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 01:16:21,080 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 01:16:21,080 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 01:16:21,080 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 01:16:21,080 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 01:16:21,081 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 01:16:21,081 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 01:16:21,081 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 01:16:21,081 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 01:16:21,081 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 01:16:21,082 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 01:16:21,082 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 01:16:21,082 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 01:16:21,082 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 01:16:21,082 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-13 01:16:21,082 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 01:16:21,082 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 01:16:21,082 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 01:16:21,082 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 01:16:21,082 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 01:16:21,083 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 01:16:21,083 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 01:16:21,083 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=REPEATED_LIPTON_PN [2022-12-13 01:16:21,083 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-12-13 01:16:21,354 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 01:16:21,376 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 01:16:21,378 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 01:16:21,379 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 01:16:21,379 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 01:16:21,380 INFO L432 ainManager$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 [2022-12-13 01:16:22,391 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 01:16:22,694 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 01:16:22,695 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/36-apron_41-threadenter-no-locals_unknown_1_pos.i [2022-12-13 01:16:22,713 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/093b5fd36/50c21abf5ca349db95bb478b49282de3/FLAG6d19da262 [2022-12-13 01:16:22,723 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/093b5fd36/50c21abf5ca349db95bb478b49282de3 [2022-12-13 01:16:22,725 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 01:16:22,726 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-13 01:16:22,727 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 01:16:22,727 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 01:16:22,729 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 01:16:22,729 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 01:16:22" (1/1) ... [2022-12-13 01:16:22,730 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@34721acb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:16:22, skipping insertion in model container [2022-12-13 01:16:22,730 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 01:16:22" (1/1) ... [2022-12-13 01:16:22,734 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 01:16:22,758 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 01:16:22,855 WARN L237 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] [2022-12-13 01:16:23,000 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 01:16:23,010 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 01:16:23,025 WARN L237 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] [2022-12-13 01:16:23,055 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 01:16:23,091 INFO L208 MainTranslator]: Completed translation [2022-12-13 01:16:23,092 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:16:23 WrapperNode [2022-12-13 01:16:23,092 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 01:16:23,093 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 01:16:23,093 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 01:16:23,093 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 01:16:23,099 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:16:23" (1/1) ... [2022-12-13 01:16:23,109 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:16:23" (1/1) ... [2022-12-13 01:16:23,133 INFO L138 Inliner]: procedures = 162, calls = 12, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 35 [2022-12-13 01:16:23,133 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 01:16:23,134 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 01:16:23,135 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 01:16:23,135 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 01:16:23,142 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:16:23" (1/1) ... [2022-12-13 01:16:23,142 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:16:23" (1/1) ... [2022-12-13 01:16:23,150 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:16:23" (1/1) ... [2022-12-13 01:16:23,151 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:16:23" (1/1) ... [2022-12-13 01:16:23,154 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:16:23" (1/1) ... [2022-12-13 01:16:23,155 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:16:23" (1/1) ... [2022-12-13 01:16:23,156 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:16:23" (1/1) ... [2022-12-13 01:16:23,160 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:16:23" (1/1) ... [2022-12-13 01:16:23,162 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 01:16:23,162 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 01:16:23,162 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 01:16:23,162 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 01:16:23,163 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:16:23" (1/1) ... [2022-12-13 01:16:23,167 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 01:16:23,176 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-13 01:16:23,188 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) [2022-12-13 01:16:23,215 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 [2022-12-13 01:16:23,231 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 01:16:23,232 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 01:16:23,235 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 01:16:23,235 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-12-13 01:16:23,235 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-12-13 01:16:23,235 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 01:16:23,235 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 01:16:23,235 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 01:16:23,235 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 01:16:23,237 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-13 01:16:23,398 INFO L236 CfgBuilder]: Building ICFG [2022-12-13 01:16:23,400 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 01:16:23,523 INFO L277 CfgBuilder]: Performing block encoding [2022-12-13 01:16:23,529 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 01:16:23,529 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 01:16:23,536 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 01:16:23 BoogieIcfgContainer [2022-12-13 01:16:23,536 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 01:16:23,538 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 01:16:23,538 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 01:16:23,541 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 01:16:23,541 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 01:16:22" (1/3) ... [2022-12-13 01:16:23,542 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3dc147b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 01:16:23, skipping insertion in model container [2022-12-13 01:16:23,542 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:16:23" (2/3) ... [2022-12-13 01:16:23,542 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3dc147b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 01:16:23, skipping insertion in model container [2022-12-13 01:16:23,542 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 01:16:23" (3/3) ... [2022-12-13 01:16:23,544 INFO L112 eAbstractionObserver]: Analyzing ICFG 36-apron_41-threadenter-no-locals_unknown_1_pos.i [2022-12-13 01:16:23,562 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 01:16:23,562 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-13 01:16:23,562 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-13 01:16:23,632 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-13 01:16:23,668 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 40 places, 37 transitions, 79 flow [2022-12-13 01:16:23,707 INFO L130 PetriNetUnfolder]: 1/36 cut-off events. [2022-12-13 01:16:23,707 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 01:16:23,711 INFO L83 FinitePrefix]: Finished finitePrefix Result has 40 conditions, 36 events. 1/36 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. 0/34 useless extension candidates. Maximal degree in co-relation 21. Up to 2 conditions per place. [2022-12-13 01:16:23,711 INFO L82 GeneralOperation]: Start removeDead. Operand has 40 places, 37 transitions, 79 flow [2022-12-13 01:16:23,716 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 35 places, 31 transitions, 65 flow [2022-12-13 01:16:23,717 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 01:16:23,750 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 35 places, 31 transitions, 65 flow [2022-12-13 01:16:23,752 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 35 places, 31 transitions, 65 flow [2022-12-13 01:16:23,762 INFO L130 PetriNetUnfolder]: 0/31 cut-off events. [2022-12-13 01:16:23,762 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 01:16:23,762 INFO L83 FinitePrefix]: Finished finitePrefix Result has 35 conditions, 31 events. 0/31 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. 0/31 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2022-12-13 01:16:23,763 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 35 places, 31 transitions, 65 flow [2022-12-13 01:16:23,763 INFO L226 LiptonReduction]: Number of co-enabled transitions 126 [2022-12-13 01:16:25,020 INFO L241 LiptonReduction]: Total number of compositions: 27 [2022-12-13 01:16:25,037 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 01:16:25,042 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=REPEATED_LIPTON_PN, 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;@29311482, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-13 01:16:25,042 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-12-13 01:16:25,047 INFO L130 PetriNetUnfolder]: 0/9 cut-off events. [2022-12-13 01:16:25,047 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 01:16:25,047 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 01:16:25,048 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2022-12-13 01:16:25,048 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 01:16:25,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 01:16:25,052 INFO L85 PathProgramCache]: Analyzing trace with hash 161610, now seen corresponding path program 1 times [2022-12-13 01:16:25,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 01:16:25,059 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1357996843] [2022-12-13 01:16:25,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 01:16:25,060 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 01:16:25,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 01:16:25,150 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 01:16:25,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 01:16:25,193 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 01:16:25,196 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-13 01:16:25,197 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2022-12-13 01:16:25,199 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining) [2022-12-13 01:16:25,199 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 3 remaining) [2022-12-13 01:16:25,200 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 01:16:25,200 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2022-12-13 01:16:25,205 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-13 01:16:25,205 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 01:16:25,218 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 01:16:25 BasicIcfg [2022-12-13 01:16:25,218 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 01:16:25,219 INFO L158 Benchmark]: Toolchain (without parser) took 2492.76ms. Allocated memory is still 189.8MB. Free memory was 164.3MB in the beginning and 109.1MB in the end (delta: 55.2MB). Peak memory consumption was 56.3MB. Max. memory is 8.0GB. [2022-12-13 01:16:25,220 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 127.9MB. Free memory was 107.0MB in the beginning and 107.0MB in the end (delta: 41.5kB). There was no memory consumed. Max. memory is 8.0GB. [2022-12-13 01:16:25,223 INFO L158 Benchmark]: CACSL2BoogieTranslator took 365.22ms. Allocated memory is still 189.8MB. Free memory was 164.0MB in the beginning and 145.6MB in the end (delta: 18.4MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. [2022-12-13 01:16:25,223 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.55ms. Allocated memory is still 189.8MB. Free memory was 145.6MB in the beginning and 143.7MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-13 01:16:25,223 INFO L158 Benchmark]: Boogie Preprocessor took 27.39ms. Allocated memory is still 189.8MB. Free memory was 143.7MB in the beginning and 142.4MB in the end (delta: 1.2MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-12-13 01:16:25,224 INFO L158 Benchmark]: RCFGBuilder took 374.04ms. Allocated memory is still 189.8MB. Free memory was 142.4MB in the beginning and 161.7MB in the end (delta: -19.2MB). Peak memory consumption was 8.9MB. Max. memory is 8.0GB. [2022-12-13 01:16:25,225 INFO L158 Benchmark]: TraceAbstraction took 1679.96ms. Allocated memory is still 189.8MB. Free memory was 160.6MB in the beginning and 109.1MB in the end (delta: 51.6MB). Peak memory consumption was 51.6MB. Max. memory is 8.0GB. [2022-12-13 01:16:25,230 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 127.9MB. Free memory was 107.0MB in the beginning and 107.0MB in the end (delta: 41.5kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 365.22ms. Allocated memory is still 189.8MB. Free memory was 164.0MB in the beginning and 145.6MB in the end (delta: 18.4MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 40.55ms. Allocated memory is still 189.8MB. Free memory was 145.6MB in the beginning and 143.7MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 27.39ms. Allocated memory is still 189.8MB. Free memory was 143.7MB in the beginning and 142.4MB in the end (delta: 1.2MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 374.04ms. Allocated memory is still 189.8MB. Free memory was 142.4MB in the beginning and 161.7MB in the end (delta: -19.2MB). Peak memory consumption was 8.9MB. Max. memory is 8.0GB. * TraceAbstraction took 1679.96ms. Allocated memory is still 189.8MB. Free memory was 160.6MB in the beginning and 109.1MB in the end (delta: 51.6MB). Peak memory consumption was 51.6MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.3s, 35 PlacesBefore, 14 PlacesAfterwards, 31 TransitionsBefore, 10 TransitionsAfterwards, 126 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 13 TrivialYvCompositions, 14 ConcurrentYvCompositions, 0 ChoiceCompositions, 27 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 152, independent: 152, independent conditional: 152, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 152, independent: 152, independent conditional: 0, independent unconditional: 152, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 152, independent: 152, independent conditional: 0, independent unconditional: 152, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 152, independent: 152, independent conditional: 0, independent unconditional: 152, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 95, independent: 95, independent conditional: 0, independent unconditional: 95, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 95, independent: 95, independent conditional: 0, independent unconditional: 95, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 152, independent: 57, independent conditional: 0, independent unconditional: 57, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 95, unknown conditional: 0, unknown unconditional: 95] , Statistics on independence cache: Total cache size (in pairs): 304, Positive cache size: 304, Positive conditional cache size: 0, Positive unconditional cache size: 304, 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, Eliminated conditions: 0, Maximal queried relation: -1 - 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, 52 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: 1.5s, 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=23occurred 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, 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! [2022-12-13 01:16:25,248 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...