/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 --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --cacsl2boogietranslator.check.absence.of.data.races.in.concurrent.programs true -i ../../../trunk/examples/svcomp/pthread-wmm/safe002_power.opt_pso.oepc_pso.opt_rmo.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-24 23:59:26,615 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-24 23:59:26,698 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf [2023-08-24 23:59:26,703 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-24 23:59:26,703 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-24 23:59:26,733 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-24 23:59:26,734 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-24 23:59:26,734 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-24 23:59:26,735 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-24 23:59:26,738 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-24 23:59:26,738 INFO L153 SettingsManager]: * Use SBE=true [2023-08-24 23:59:26,739 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-24 23:59:26,739 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-24 23:59:26,740 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-24 23:59:26,740 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-24 23:59:26,740 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-24 23:59:26,741 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-24 23:59:26,741 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-24 23:59:26,741 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-24 23:59:26,741 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-24 23:59:26,741 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-24 23:59:26,742 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-24 23:59:26,742 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-24 23:59:26,743 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-24 23:59:26,743 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-24 23:59:26,743 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-24 23:59:26,743 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-24 23:59:26,744 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-24 23:59:26,744 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-24 23:59:26,744 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-24 23:59:26,745 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-24 23:59:26,745 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-24 23:59:26,745 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-24 23:59:26,745 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-24 23:59:26,746 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-24 23:59:26,746 INFO L153 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true [2023-08-24 23:59:27,066 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-24 23:59:27,088 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-24 23:59:27,090 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-24 23:59:27,091 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-24 23:59:27,091 INFO L274 PluginConnector]: CDTParser initialized [2023-08-24 23:59:27,092 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe002_power.opt_pso.oepc_pso.opt_rmo.opt.i [2023-08-24 23:59:28,279 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-24 23:59:28,566 INFO L384 CDTParser]: Found 1 translation units. [2023-08-24 23:59:28,567 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe002_power.opt_pso.oepc_pso.opt_rmo.opt.i [2023-08-24 23:59:28,582 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f743ed17a/07a6cf8bcf604e0ba8643a4188044f60/FLAGc7331f7d2 [2023-08-24 23:59:28,601 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f743ed17a/07a6cf8bcf604e0ba8643a4188044f60 [2023-08-24 23:59:28,603 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-24 23:59:28,604 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-24 23:59:28,605 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-24 23:59:28,605 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-24 23:59:28,608 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-24 23:59:28,608 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.08 11:59:28" (1/1) ... [2023-08-24 23:59:28,609 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@30030731 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 11:59:28, skipping insertion in model container [2023-08-24 23:59:28,609 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.08 11:59:28" (1/1) ... [2023-08-24 23:59:28,656 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-24 23:59:29,013 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-24 23:59:29,026 INFO L201 MainTranslator]: Completed pre-run [2023-08-24 23:59:29,053 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [268] [2023-08-24 23:59:29,055 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [268] [2023-08-24 23:59:29,113 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-24 23:59:29,149 WARN L669 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-24 23:59:29,149 WARN L669 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-24 23:59:29,155 INFO L206 MainTranslator]: Completed translation [2023-08-24 23:59:29,155 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 11:59:29 WrapperNode [2023-08-24 23:59:29,156 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-24 23:59:29,157 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-24 23:59:29,157 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-24 23:59:29,157 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-24 23:59:29,163 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 11:59:29" (1/1) ... [2023-08-24 23:59:29,196 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 11:59:29" (1/1) ... [2023-08-24 23:59:29,247 INFO L138 Inliner]: procedures = 176, calls = 55, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 494 [2023-08-24 23:59:29,248 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-24 23:59:29,248 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-24 23:59:29,249 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-24 23:59:29,249 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-24 23:59:29,256 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 11:59:29" (1/1) ... [2023-08-24 23:59:29,256 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 11:59:29" (1/1) ... [2023-08-24 23:59:29,263 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 11:59:29" (1/1) ... [2023-08-24 23:59:29,263 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 11:59:29" (1/1) ... [2023-08-24 23:59:29,307 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 11:59:29" (1/1) ... [2023-08-24 23:59:29,312 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 11:59:29" (1/1) ... [2023-08-24 23:59:29,315 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 11:59:29" (1/1) ... [2023-08-24 23:59:29,326 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 11:59:29" (1/1) ... [2023-08-24 23:59:29,331 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-24 23:59:29,332 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-24 23:59:29,332 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-24 23:59:29,333 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-24 23:59:29,333 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 11:59:29" (1/1) ... [2023-08-24 23:59:29,338 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-24 23:59:29,369 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-24 23:59:29,380 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) [2023-08-24 23:59:29,406 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 [2023-08-24 23:59:29,419 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-24 23:59:29,419 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-08-24 23:59:29,419 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-24 23:59:29,419 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-24 23:59:29,420 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-24 23:59:29,420 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-08-24 23:59:29,420 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-08-24 23:59:29,420 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-08-24 23:59:29,420 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-08-24 23:59:29,420 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-08-24 23:59:29,420 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-08-24 23:59:29,420 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-24 23:59:29,421 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-08-24 23:59:29,421 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-24 23:59:29,421 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-24 23:59:29,424 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-24 23:59:29,597 INFO L236 CfgBuilder]: Building ICFG [2023-08-24 23:59:29,599 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-24 23:59:30,501 INFO L277 CfgBuilder]: Performing block encoding [2023-08-25 00:03:09,113 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-25 00:03:09,118 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-25 00:03:09,127 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 12:03:09 BoogieIcfgContainer [2023-08-25 00:03:09,128 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-25 00:03:09,130 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-25 00:03:09,130 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-25 00:03:09,150 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-25 00:03:09,151 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.08 11:59:28" (1/3) ... [2023-08-25 00:03:09,151 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30919f1e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 12:03:09, skipping insertion in model container [2023-08-25 00:03:09,151 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 11:59:29" (2/3) ... [2023-08-25 00:03:09,152 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30919f1e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 12:03:09, skipping insertion in model container [2023-08-25 00:03:09,152 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 12:03:09" (3/3) ... [2023-08-25 00:03:09,153 INFO L112 eAbstractionObserver]: Analyzing ICFG safe002_power.opt_pso.oepc_pso.opt_rmo.opt.i [2023-08-25 00:03:09,167 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-25 00:03:09,167 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 220 error locations. [2023-08-25 00:03:09,167 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-25 00:03:21,276 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-25 00:03:21,328 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 340 places, 333 transitions, 681 flow [2023-08-25 00:03:38,587 INFO L124 PetriNetUnfolderBase]: 3/330 cut-off events. [2023-08-25 00:03:38,587 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 00:03:38,600 INFO L83 FinitePrefix]: Finished finitePrefix Result has 340 conditions, 330 events. 3/330 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 98. Compared 1759 event pairs, 0 based on Foata normal form. 0/107 useless extension candidates. Maximal degree in co-relation 294. Up to 2 conditions per place. [2023-08-25 00:03:38,600 INFO L82 GeneralOperation]: Start removeDead. Operand has 340 places, 333 transitions, 681 flow [2023-08-25 00:03:38,618 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 337 places, 330 transitions, 669 flow [2023-08-25 00:03:38,622 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-25 00:03:38,635 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 337 places, 330 transitions, 669 flow [2023-08-25 00:03:38,639 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 337 places, 330 transitions, 669 flow [2023-08-25 00:03:38,639 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 337 places, 330 transitions, 669 flow [2023-08-25 00:03:54,390 INFO L124 PetriNetUnfolderBase]: 3/330 cut-off events. [2023-08-25 00:03:54,391 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 00:03:54,397 INFO L83 FinitePrefix]: Finished finitePrefix Result has 340 conditions, 330 events. 3/330 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 98. Compared 1762 event pairs, 0 based on Foata normal form. 0/107 useless extension candidates. Maximal degree in co-relation 294. Up to 2 conditions per place. [2023-08-25 00:03:54,421 INFO L119 LiptonReduction]: Number of co-enabled transitions 58480 [2023-08-25 00:04:00,079 INFO L134 LiptonReduction]: Checked pairs total: 497313 [2023-08-25 00:04:00,080 INFO L136 LiptonReduction]: Total number of compositions: 142 [2023-08-25 00:04:00,092 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-25 00:04:00,098 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;@a424eae, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-25 00:04:00,098 INFO L358 AbstractCegarLoop]: Starting to check reachability of 405 error locations. [2023-08-25 00:04:00,100 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-25 00:04:00,100 INFO L124 PetriNetUnfolderBase]: 0/2 cut-off events. [2023-08-25 00:04:00,101 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 00:04:00,101 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 00:04:00,101 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-25 00:04:00,102 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err1ASSERT_VIOLATIONDATA_RACE === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 401 more)] === [2023-08-25 00:04:00,106 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 00:04:00,106 INFO L85 PathProgramCache]: Analyzing trace with hash 6983204, now seen corresponding path program 1 times [2023-08-25 00:04:00,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 00:04:00,115 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1939263125] [2023-08-25 00:04:00,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 00:04:00,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 00:04:00,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 00:04:00,861 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 00:04:00,861 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 00:04:00,862 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1939263125] [2023-08-25 00:04:00,862 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1939263125] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 00:04:00,862 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 00:04:00,862 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-25 00:04:00,864 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [964685645] [2023-08-25 00:04:00,865 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 00:04:00,872 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-25 00:04:00,877 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 00:04:00,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-25 00:04:00,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-25 00:04:00,896 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 475 [2023-08-25 00:04:00,898 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 250 places, 240 transitions, 489 flow. Second operand has 2 states, 2 states have (on average 96.5) internal successors, (193), 2 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 00:04:00,898 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 00:04:00,898 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 475 [2023-08-25 00:04:00,899 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand Received shutdown request... [2023-08-25 00:13:29,841 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-08-25 00:13:31,011 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 Cannot interrupt operation gracefully because timeout expired. Forcing shutdown