/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/safe015_pso.oepc_pso.opt_tso.oepc_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-25 01:04:15,036 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-25 01:04:15,101 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 [2023-08-25 01:04:15,105 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-25 01:04:15,105 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-25 01:04:15,128 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-25 01:04:15,128 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-25 01:04:15,128 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-25 01:04:15,129 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-25 01:04:15,132 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-25 01:04:15,132 INFO L153 SettingsManager]: * Use SBE=true [2023-08-25 01:04:15,132 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-25 01:04:15,132 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-25 01:04:15,133 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-25 01:04:15,133 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-25 01:04:15,133 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-25 01:04:15,134 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-25 01:04:15,134 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-25 01:04:15,134 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-25 01:04:15,134 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-25 01:04:15,134 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-25 01:04:15,135 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-25 01:04:15,135 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-25 01:04:15,135 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-25 01:04:15,135 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-25 01:04:15,136 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-25 01:04:15,136 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-25 01:04:15,136 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 01:04:15,136 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-25 01:04:15,136 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-25 01:04:15,137 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-25 01:04:15,137 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-25 01:04:15,137 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-25 01:04:15,137 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-25 01:04:15,138 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-25 01:04:15,138 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true [2023-08-25 01:04:15,394 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-25 01:04:15,411 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-25 01:04:15,412 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-25 01:04:15,413 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-25 01:04:15,413 INFO L274 PluginConnector]: CDTParser initialized [2023-08-25 01:04:15,414 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe015_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2023-08-25 01:04:16,353 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-25 01:04:16,575 INFO L384 CDTParser]: Found 1 translation units. [2023-08-25 01:04:16,576 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe015_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2023-08-25 01:04:16,591 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ca739c469/7ec10439594f4aa6a8b3e9557390c8db/FLAG512888356 [2023-08-25 01:04:16,605 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ca739c469/7ec10439594f4aa6a8b3e9557390c8db [2023-08-25 01:04:16,608 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-25 01:04:16,609 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-25 01:04:16,611 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-25 01:04:16,611 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-25 01:04:16,613 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-25 01:04:16,614 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 01:04:16" (1/1) ... [2023-08-25 01:04:16,615 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3dca56b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 01:04:16, skipping insertion in model container [2023-08-25 01:04:16,615 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 01:04:16" (1/1) ... [2023-08-25 01:04:16,652 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-25 01:04:16,894 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 01:04:16,901 INFO L201 MainTranslator]: Completed pre-run [2023-08-25 01:04:16,916 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [267] [2023-08-25 01:04:16,917 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [267] [2023-08-25 01:04:16,939 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 01:04:16,961 WARN L669 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-25 01:04:16,962 WARN L669 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-25 01:04:16,966 INFO L206 MainTranslator]: Completed translation [2023-08-25 01:04:16,966 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 01:04:16 WrapperNode [2023-08-25 01:04:16,966 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-25 01:04:16,967 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-25 01:04:16,967 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-25 01:04:16,967 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-25 01:04:16,971 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 01:04:16" (1/1) ... [2023-08-25 01:04:16,981 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 01:04:16" (1/1) ... [2023-08-25 01:04:16,994 INFO L138 Inliner]: procedures = 176, calls = 56, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 107 [2023-08-25 01:04:16,994 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-25 01:04:16,995 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-25 01:04:16,995 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-25 01:04:16,995 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-25 01:04:17,002 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 01:04:16" (1/1) ... [2023-08-25 01:04:17,002 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 01:04:16" (1/1) ... [2023-08-25 01:04:17,010 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 01:04:16" (1/1) ... [2023-08-25 01:04:17,011 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 01:04:16" (1/1) ... [2023-08-25 01:04:17,023 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 01:04:16" (1/1) ... [2023-08-25 01:04:17,025 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 01:04:16" (1/1) ... [2023-08-25 01:04:17,026 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 01:04:16" (1/1) ... [2023-08-25 01:04:17,027 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 01:04:16" (1/1) ... [2023-08-25 01:04:17,028 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-25 01:04:17,029 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-25 01:04:17,029 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-25 01:04:17,029 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-25 01:04:17,030 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 01:04:16" (1/1) ... [2023-08-25 01:04:17,033 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 01:04:17,058 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 01:04:17,067 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) [2023-08-25 01:04:17,082 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 [2023-08-25 01:04:17,103 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-25 01:04:17,103 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-08-25 01:04:17,103 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-25 01:04:17,103 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-25 01:04:17,103 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-25 01:04:17,103 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-08-25 01:04:17,103 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-08-25 01:04:17,104 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-08-25 01:04:17,104 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-08-25 01:04:17,104 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-08-25 01:04:17,104 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-08-25 01:04:17,104 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-25 01:04:17,104 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-08-25 01:04:17,104 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-25 01:04:17,104 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-25 01:04:17,105 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-25 01:04:17,226 INFO L236 CfgBuilder]: Building ICFG [2023-08-25 01:04:17,227 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-25 01:04:17,489 INFO L277 CfgBuilder]: Performing block encoding [2023-08-25 01:04:17,588 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-25 01:04:17,588 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-25 01:04:17,590 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 01:04:17 BoogieIcfgContainer [2023-08-25 01:04:17,590 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-25 01:04:17,594 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-25 01:04:17,595 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-25 01:04:17,597 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-25 01:04:17,597 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.08 01:04:16" (1/3) ... [2023-08-25 01:04:17,598 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78a9bab4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 01:04:17, skipping insertion in model container [2023-08-25 01:04:17,598 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 01:04:16" (2/3) ... [2023-08-25 01:04:17,598 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78a9bab4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 01:04:17, skipping insertion in model container [2023-08-25 01:04:17,598 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 01:04:17" (3/3) ... [2023-08-25 01:04:17,599 INFO L112 eAbstractionObserver]: Analyzing ICFG safe015_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2023-08-25 01:04:17,610 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-25 01:04:17,611 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 24 error locations. [2023-08-25 01:04:17,611 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-25 01:04:17,652 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-25 01:04:17,684 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 122 places, 115 transitions, 245 flow [2023-08-25 01:04:17,730 INFO L124 PetriNetUnfolderBase]: 3/112 cut-off events. [2023-08-25 01:04:17,730 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 01:04:17,734 INFO L83 FinitePrefix]: Finished finitePrefix Result has 122 conditions, 112 events. 3/112 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 140 event pairs, 0 based on Foata normal form. 0/85 useless extension candidates. Maximal degree in co-relation 95. Up to 2 conditions per place. [2023-08-25 01:04:17,735 INFO L82 GeneralOperation]: Start removeDead. Operand has 122 places, 115 transitions, 245 flow [2023-08-25 01:04:17,737 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 119 places, 112 transitions, 233 flow [2023-08-25 01:04:17,740 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-25 01:04:17,749 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 119 places, 112 transitions, 233 flow [2023-08-25 01:04:17,752 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 119 places, 112 transitions, 233 flow [2023-08-25 01:04:17,752 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 119 places, 112 transitions, 233 flow [2023-08-25 01:04:17,779 INFO L124 PetriNetUnfolderBase]: 3/112 cut-off events. [2023-08-25 01:04:17,779 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 01:04:17,780 INFO L83 FinitePrefix]: Finished finitePrefix Result has 122 conditions, 112 events. 3/112 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 139 event pairs, 0 based on Foata normal form. 0/85 useless extension candidates. Maximal degree in co-relation 95. Up to 2 conditions per place. [2023-08-25 01:04:17,802 INFO L119 LiptonReduction]: Number of co-enabled transitions 4010 [2023-08-25 01:04:21,349 INFO L134 LiptonReduction]: Checked pairs total: 14553 [2023-08-25 01:04:21,349 INFO L136 LiptonReduction]: Total number of compositions: 103 [2023-08-25 01:04:21,357 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-25 01:04:21,361 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;@3e069d69, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-25 01:04:21,361 INFO L358 AbstractCegarLoop]: Starting to check reachability of 41 error locations. [2023-08-25 01:04:21,362 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-25 01:04:21,363 INFO L124 PetriNetUnfolderBase]: 0/2 cut-off events. [2023-08-25 01:04:21,363 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 01:04:21,363 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 01:04:21,363 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-25 01:04:21,363 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONDATA_RACE === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 37 more)] === [2023-08-25 01:04:21,366 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 01:04:21,366 INFO L85 PathProgramCache]: Analyzing trace with hash 595709, now seen corresponding path program 1 times [2023-08-25 01:04:21,371 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 01:04:21,372 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1246039940] [2023-08-25 01:04:21,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 01:04:21,372 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 01:04:21,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 01:04:21,464 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 01:04:21,467 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 01:04:21,467 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1246039940] [2023-08-25 01:04:21,467 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1246039940] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 01:04:21,468 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 01:04:21,468 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-25 01:04:21,468 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1868999971] [2023-08-25 01:04:21,469 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 01:04:21,474 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-25 01:04:21,477 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 01:04:21,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-25 01:04:21,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-25 01:04:21,494 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 218 [2023-08-25 01:04:21,495 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 41 transitions, 91 flow. Second operand has 2 states, 2 states have (on average 77.5) internal successors, (155), 2 states have internal predecessors, (155), 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 01:04:21,495 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 01:04:21,495 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 218 [2023-08-25 01:04:21,496 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 01:04:21,594 INFO L124 PetriNetUnfolderBase]: 567/864 cut-off events. [2023-08-25 01:04:21,594 INFO L125 PetriNetUnfolderBase]: For 14/14 co-relation queries the response was YES. [2023-08-25 01:04:21,595 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1775 conditions, 864 events. 567/864 cut-off events. For 14/14 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 3166 event pairs, 567 based on Foata normal form. 0/800 useless extension candidates. Maximal degree in co-relation 1764. Up to 865 conditions per place. [2023-08-25 01:04:21,599 INFO L140 encePairwiseOnDemand]: 195/218 looper letters, 17 selfloop transitions, 0 changer transitions 1/18 dead transitions. [2023-08-25 01:04:21,599 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 29 places, 18 transitions, 81 flow [2023-08-25 01:04:21,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-25 01:04:21,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-25 01:04:21,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 193 transitions. [2023-08-25 01:04:21,607 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4426605504587156 [2023-08-25 01:04:21,607 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 193 transitions. [2023-08-25 01:04:21,607 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 193 transitions. [2023-08-25 01:04:21,608 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 01:04:21,609 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 193 transitions. [2023-08-25 01:04:21,611 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 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 01:04:21,613 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 218.0) internal successors, (654), 3 states have internal predecessors, (654), 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 01:04:21,613 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 218.0) internal successors, (654), 3 states have internal predecessors, (654), 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 01:04:21,615 INFO L175 Difference]: Start difference. First operand has 51 places, 41 transitions, 91 flow. Second operand 2 states and 193 transitions. [2023-08-25 01:04:21,615 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 29 places, 18 transitions, 81 flow [2023-08-25 01:04:21,616 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 26 places, 18 transitions, 78 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-08-25 01:04:21,617 INFO L231 Difference]: Finished difference. Result has 26 places, 17 transitions, 40 flow [2023-08-25 01:04:21,618 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=218, PETRI_DIFFERENCE_MINUEND_FLOW=42, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=40, PETRI_PLACES=26, PETRI_TRANSITIONS=17} [2023-08-25 01:04:21,620 INFO L281 CegarLoopForPetriNet]: 51 programPoint places, -25 predicate places. [2023-08-25 01:04:21,620 INFO L495 AbstractCegarLoop]: Abstraction has has 26 places, 17 transitions, 40 flow [2023-08-25 01:04:21,621 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 77.5) internal successors, (155), 2 states have internal predecessors, (155), 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 01:04:21,621 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 01:04:21,621 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 01:04:21,621 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-25 01:04:21,621 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 37 more)] === [2023-08-25 01:04:21,621 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 01:04:21,622 INFO L85 PathProgramCache]: Analyzing trace with hash 1103202367, now seen corresponding path program 1 times [2023-08-25 01:04:21,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 01:04:21,622 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [591133366] [2023-08-25 01:04:21,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 01:04:21,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 01:04:21,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 01:04:21,755 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 01:04:21,756 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 01:04:21,756 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [591133366] [2023-08-25 01:04:21,756 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [591133366] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 01:04:21,756 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 01:04:21,756 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-25 01:04:21,756 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [976534401] [2023-08-25 01:04:21,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 01:04:21,757 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 01:04:21,757 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 01:04:21,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 01:04:21,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 01:04:21,758 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 218 [2023-08-25 01:04:21,758 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 17 transitions, 40 flow. Second operand has 3 states, 3 states have (on average 77.66666666666667) internal successors, (233), 3 states have internal predecessors, (233), 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 01:04:21,758 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 01:04:21,759 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 218 [2023-08-25 01:04:21,759 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 01:04:21,814 INFO L124 PetriNetUnfolderBase]: 401/626 cut-off events. [2023-08-25 01:04:21,814 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 01:04:21,815 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1297 conditions, 626 events. 401/626 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 2332 event pairs, 111 based on Foata normal form. 8/634 useless extension candidates. Maximal degree in co-relation 1294. Up to 581 conditions per place. [2023-08-25 01:04:21,817 INFO L140 encePairwiseOnDemand]: 214/218 looper letters, 25 selfloop transitions, 3 changer transitions 0/28 dead transitions. [2023-08-25 01:04:21,817 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 27 places, 28 transitions, 122 flow [2023-08-25 01:04:21,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 01:04:21,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 01:04:21,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 254 transitions. [2023-08-25 01:04:21,822 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.38837920489296635 [2023-08-25 01:04:21,822 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 254 transitions. [2023-08-25 01:04:21,822 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 254 transitions. [2023-08-25 01:04:21,823 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 01:04:21,823 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 254 transitions. [2023-08-25 01:04:21,825 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 84.66666666666667) internal successors, (254), 3 states have internal predecessors, (254), 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 01:04:21,827 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 218.0) internal successors, (872), 4 states have internal predecessors, (872), 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 01:04:21,827 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 218.0) internal successors, (872), 4 states have internal predecessors, (872), 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 01:04:21,828 INFO L175 Difference]: Start difference. First operand has 26 places, 17 transitions, 40 flow. Second operand 3 states and 254 transitions. [2023-08-25 01:04:21,828 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 27 places, 28 transitions, 122 flow [2023-08-25 01:04:21,828 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 27 places, 28 transitions, 122 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 01:04:21,829 INFO L231 Difference]: Finished difference. Result has 28 places, 19 transitions, 59 flow [2023-08-25 01:04:21,829 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=218, PETRI_DIFFERENCE_MINUEND_FLOW=40, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=59, PETRI_PLACES=28, PETRI_TRANSITIONS=19} [2023-08-25 01:04:21,830 INFO L281 CegarLoopForPetriNet]: 51 programPoint places, -23 predicate places. [2023-08-25 01:04:21,830 INFO L495 AbstractCegarLoop]: Abstraction has has 28 places, 19 transitions, 59 flow [2023-08-25 01:04:21,830 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 77.66666666666667) internal successors, (233), 3 states have internal predecessors, (233), 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 01:04:21,832 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 01:04:21,833 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 01:04:21,833 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-25 01:04:21,837 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 37 more)] === [2023-08-25 01:04:21,840 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 01:04:21,840 INFO L85 PathProgramCache]: Analyzing trace with hash -160466401, now seen corresponding path program 1 times [2023-08-25 01:04:21,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 01:04:21,840 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [983745455] [2023-08-25 01:04:21,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 01:04:21,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 01:04:21,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 01:04:21,925 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 01:04:21,926 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 01:04:21,926 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [983745455] [2023-08-25 01:04:21,926 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [983745455] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 01:04:21,926 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 01:04:21,926 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-25 01:04:21,926 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [565643294] [2023-08-25 01:04:21,926 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 01:04:21,927 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 01:04:21,927 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 01:04:21,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 01:04:21,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 01:04:21,928 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 218 [2023-08-25 01:04:21,928 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 28 places, 19 transitions, 59 flow. Second operand has 3 states, 3 states have (on average 78.0) internal successors, (234), 3 states have internal predecessors, (234), 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 01:04:21,928 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 01:04:21,928 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 218 [2023-08-25 01:04:21,928 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 01:04:21,977 INFO L124 PetriNetUnfolderBase]: 372/585 cut-off events. [2023-08-25 01:04:21,977 INFO L125 PetriNetUnfolderBase]: For 64/64 co-relation queries the response was YES. [2023-08-25 01:04:21,978 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1390 conditions, 585 events. 372/585 cut-off events. For 64/64 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 2018 event pairs, 115 based on Foata normal form. 12/597 useless extension candidates. Maximal degree in co-relation 1385. Up to 426 conditions per place. [2023-08-25 01:04:21,980 INFO L140 encePairwiseOnDemand]: 215/218 looper letters, 24 selfloop transitions, 2 changer transitions 0/26 dead transitions. [2023-08-25 01:04:21,980 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 30 places, 26 transitions, 128 flow [2023-08-25 01:04:21,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 01:04:21,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 01:04:21,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 250 transitions. [2023-08-25 01:04:21,981 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.382262996941896 [2023-08-25 01:04:21,981 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 250 transitions. [2023-08-25 01:04:21,981 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 250 transitions. [2023-08-25 01:04:21,981 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 01:04:21,981 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 250 transitions. [2023-08-25 01:04:21,982 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 83.33333333333333) internal successors, (250), 3 states have internal predecessors, (250), 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 01:04:21,983 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 218.0) internal successors, (872), 4 states have internal predecessors, (872), 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 01:04:21,984 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 218.0) internal successors, (872), 4 states have internal predecessors, (872), 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 01:04:21,984 INFO L175 Difference]: Start difference. First operand has 28 places, 19 transitions, 59 flow. Second operand 3 states and 250 transitions. [2023-08-25 01:04:21,984 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 30 places, 26 transitions, 128 flow [2023-08-25 01:04:21,985 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 26 transitions, 124 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-25 01:04:21,985 INFO L231 Difference]: Finished difference. Result has 30 places, 19 transitions, 64 flow [2023-08-25 01:04:21,985 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=218, PETRI_DIFFERENCE_MINUEND_FLOW=56, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=64, PETRI_PLACES=30, PETRI_TRANSITIONS=19} [2023-08-25 01:04:21,986 INFO L281 CegarLoopForPetriNet]: 51 programPoint places, -21 predicate places. [2023-08-25 01:04:21,986 INFO L495 AbstractCegarLoop]: Abstraction has has 30 places, 19 transitions, 64 flow [2023-08-25 01:04:21,986 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 78.0) internal successors, (234), 3 states have internal predecessors, (234), 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 01:04:21,987 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 01:04:21,987 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 01:04:21,987 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-25 01:04:21,989 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 37 more)] === [2023-08-25 01:04:21,990 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 01:04:21,990 INFO L85 PathProgramCache]: Analyzing trace with hash -43592514, now seen corresponding path program 1 times [2023-08-25 01:04:21,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 01:04:21,990 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [905953144] [2023-08-25 01:04:21,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 01:04:21,990 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 01:04:22,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 01:04:22,070 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 01:04:22,070 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 01:04:22,070 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [905953144] [2023-08-25 01:04:22,070 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [905953144] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 01:04:22,070 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 01:04:22,070 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 01:04:22,070 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1913500356] [2023-08-25 01:04:22,071 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 01:04:22,071 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-25 01:04:22,071 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 01:04:22,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-25 01:04:22,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-25 01:04:22,073 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 218 [2023-08-25 01:04:22,074 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 19 transitions, 64 flow. Second operand has 4 states, 4 states have (on average 76.5) internal successors, (306), 4 states have internal predecessors, (306), 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 01:04:22,074 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 01:04:22,074 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 218 [2023-08-25 01:04:22,074 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 01:04:22,162 INFO L124 PetriNetUnfolderBase]: 460/734 cut-off events. [2023-08-25 01:04:22,162 INFO L125 PetriNetUnfolderBase]: For 282/282 co-relation queries the response was YES. [2023-08-25 01:04:22,163 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1779 conditions, 734 events. 460/734 cut-off events. For 282/282 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 2946 event pairs, 62 based on Foata normal form. 44/778 useless extension candidates. Maximal degree in co-relation 1773. Up to 330 conditions per place. [2023-08-25 01:04:22,165 INFO L140 encePairwiseOnDemand]: 214/218 looper letters, 28 selfloop transitions, 3 changer transitions 9/40 dead transitions. [2023-08-25 01:04:22,165 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 40 transitions, 207 flow [2023-08-25 01:04:22,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-25 01:04:22,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-25 01:04:22,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 332 transitions. [2023-08-25 01:04:22,166 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.38073394495412843 [2023-08-25 01:04:22,166 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 332 transitions. [2023-08-25 01:04:22,166 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 332 transitions. [2023-08-25 01:04:22,166 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 01:04:22,166 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 332 transitions. [2023-08-25 01:04:22,167 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 83.0) internal successors, (332), 4 states have internal predecessors, (332), 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 01:04:22,168 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 218.0) internal successors, (1090), 5 states have internal predecessors, (1090), 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 01:04:22,169 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 218.0) internal successors, (1090), 5 states have internal predecessors, (1090), 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 01:04:22,169 INFO L175 Difference]: Start difference. First operand has 30 places, 19 transitions, 64 flow. Second operand 4 states and 332 transitions. [2023-08-25 01:04:22,169 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 40 transitions, 207 flow [2023-08-25 01:04:22,170 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 40 transitions, 201 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-25 01:04:22,171 INFO L231 Difference]: Finished difference. Result has 33 places, 19 transitions, 74 flow [2023-08-25 01:04:22,171 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=218, PETRI_DIFFERENCE_MINUEND_FLOW=60, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=74, PETRI_PLACES=33, PETRI_TRANSITIONS=19} [2023-08-25 01:04:22,172 INFO L281 CegarLoopForPetriNet]: 51 programPoint places, -18 predicate places. [2023-08-25 01:04:22,172 INFO L495 AbstractCegarLoop]: Abstraction has has 33 places, 19 transitions, 74 flow [2023-08-25 01:04:22,173 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 76.5) internal successors, (306), 4 states have internal predecessors, (306), 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 01:04:22,173 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 01:04:22,173 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 01:04:22,173 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-25 01:04:22,173 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 37 more)] === [2023-08-25 01:04:22,173 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 01:04:22,173 INFO L85 PathProgramCache]: Analyzing trace with hash -1351359641, now seen corresponding path program 1 times [2023-08-25 01:04:22,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 01:04:22,173 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [299321832] [2023-08-25 01:04:22,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 01:04:22,174 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 01:04:22,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 01:04:22,245 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 01:04:22,245 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 01:04:22,245 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [299321832] [2023-08-25 01:04:22,245 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [299321832] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 01:04:22,246 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 01:04:22,246 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-25 01:04:22,246 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1809469371] [2023-08-25 01:04:22,246 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 01:04:22,246 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-25 01:04:22,246 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 01:04:22,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-25 01:04:22,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-25 01:04:22,247 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 218 [2023-08-25 01:04:22,247 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 19 transitions, 74 flow. Second operand has 4 states, 4 states have (on average 76.75) internal successors, (307), 4 states have internal predecessors, (307), 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 01:04:22,247 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 01:04:22,247 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 218 [2023-08-25 01:04:22,247 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 01:04:22,314 INFO L124 PetriNetUnfolderBase]: 334/549 cut-off events. [2023-08-25 01:04:22,314 INFO L125 PetriNetUnfolderBase]: For 550/550 co-relation queries the response was YES. [2023-08-25 01:04:22,315 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1440 conditions, 549 events. 334/549 cut-off events. For 550/550 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 2023 event pairs, 176 based on Foata normal form. 33/582 useless extension candidates. Maximal degree in co-relation 1432. Up to 316 conditions per place. [2023-08-25 01:04:22,316 INFO L140 encePairwiseOnDemand]: 214/218 looper letters, 23 selfloop transitions, 2 changer transitions 19/44 dead transitions. [2023-08-25 01:04:22,316 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 44 transitions, 236 flow [2023-08-25 01:04:22,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-25 01:04:22,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-25 01:04:22,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 410 transitions. [2023-08-25 01:04:22,317 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3761467889908257 [2023-08-25 01:04:22,317 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 410 transitions. [2023-08-25 01:04:22,317 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 410 transitions. [2023-08-25 01:04:22,318 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 01:04:22,318 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 410 transitions. [2023-08-25 01:04:22,318 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 82.0) internal successors, (410), 5 states have internal predecessors, (410), 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 01:04:22,320 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 218.0) internal successors, (1308), 6 states have internal predecessors, (1308), 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 01:04:22,320 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 218.0) internal successors, (1308), 6 states have internal predecessors, (1308), 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 01:04:22,320 INFO L175 Difference]: Start difference. First operand has 33 places, 19 transitions, 74 flow. Second operand 5 states and 410 transitions. [2023-08-25 01:04:22,320 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 44 transitions, 236 flow [2023-08-25 01:04:22,321 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 44 transitions, 222 flow, removed 2 selfloop flow, removed 4 redundant places. [2023-08-25 01:04:22,322 INFO L231 Difference]: Finished difference. Result has 36 places, 19 transitions, 74 flow [2023-08-25 01:04:22,322 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=218, PETRI_DIFFERENCE_MINUEND_FLOW=62, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=74, PETRI_PLACES=36, PETRI_TRANSITIONS=19} [2023-08-25 01:04:22,322 INFO L281 CegarLoopForPetriNet]: 51 programPoint places, -15 predicate places. [2023-08-25 01:04:22,322 INFO L495 AbstractCegarLoop]: Abstraction has has 36 places, 19 transitions, 74 flow [2023-08-25 01:04:22,323 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 76.75) internal successors, (307), 4 states have internal predecessors, (307), 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 01:04:22,323 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 01:04:22,323 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 01:04:22,323 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-25 01:04:22,323 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 37 more)] === [2023-08-25 01:04:22,323 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 01:04:22,323 INFO L85 PathProgramCache]: Analyzing trace with hash -1946837861, now seen corresponding path program 1 times [2023-08-25 01:04:22,323 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 01:04:22,323 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [702037776] [2023-08-25 01:04:22,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 01:04:22,323 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 01:04:22,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 01:04:22,502 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 01:04:22,502 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 01:04:22,502 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [702037776] [2023-08-25 01:04:22,502 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [702037776] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 01:04:22,502 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 01:04:22,502 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 01:04:22,502 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [284693837] [2023-08-25 01:04:22,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 01:04:22,503 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 01:04:22,503 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 01:04:22,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 01:04:22,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 01:04:22,507 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 218 [2023-08-25 01:04:22,507 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 19 transitions, 74 flow. Second operand has 3 states, 3 states have (on average 79.0) internal successors, (237), 3 states have internal predecessors, (237), 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 01:04:22,507 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 01:04:22,507 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 218 [2023-08-25 01:04:22,507 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 01:04:22,546 INFO L124 PetriNetUnfolderBase]: 158/281 cut-off events. [2023-08-25 01:04:22,546 INFO L125 PetriNetUnfolderBase]: For 236/236 co-relation queries the response was YES. [2023-08-25 01:04:22,547 INFO L83 FinitePrefix]: Finished finitePrefix Result has 805 conditions, 281 events. 158/281 cut-off events. For 236/236 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 888 event pairs, 53 based on Foata normal form. 15/296 useless extension candidates. Maximal degree in co-relation 796. Up to 206 conditions per place. [2023-08-25 01:04:22,548 INFO L140 encePairwiseOnDemand]: 213/218 looper letters, 30 selfloop transitions, 4 changer transitions 0/34 dead transitions. [2023-08-25 01:04:22,548 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 34 transitions, 195 flow [2023-08-25 01:04:22,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 01:04:22,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 01:04:22,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 256 transitions. [2023-08-25 01:04:22,549 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.39143730886850153 [2023-08-25 01:04:22,549 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 256 transitions. [2023-08-25 01:04:22,549 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 256 transitions. [2023-08-25 01:04:22,549 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 01:04:22,549 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 256 transitions. [2023-08-25 01:04:22,550 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 85.33333333333333) internal successors, (256), 3 states have internal predecessors, (256), 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 01:04:22,551 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 218.0) internal successors, (872), 4 states have internal predecessors, (872), 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 01:04:22,551 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 218.0) internal successors, (872), 4 states have internal predecessors, (872), 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 01:04:22,552 INFO L175 Difference]: Start difference. First operand has 36 places, 19 transitions, 74 flow. Second operand 3 states and 256 transitions. [2023-08-25 01:04:22,552 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 34 transitions, 195 flow [2023-08-25 01:04:22,554 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 34 transitions, 183 flow, removed 2 selfloop flow, removed 4 redundant places. [2023-08-25 01:04:22,555 INFO L231 Difference]: Finished difference. Result has 33 places, 22 transitions, 92 flow [2023-08-25 01:04:22,555 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=218, PETRI_DIFFERENCE_MINUEND_FLOW=66, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=92, PETRI_PLACES=33, PETRI_TRANSITIONS=22} [2023-08-25 01:04:22,557 INFO L281 CegarLoopForPetriNet]: 51 programPoint places, -18 predicate places. [2023-08-25 01:04:22,557 INFO L495 AbstractCegarLoop]: Abstraction has has 33 places, 22 transitions, 92 flow [2023-08-25 01:04:22,557 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 79.0) internal successors, (237), 3 states have internal predecessors, (237), 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 01:04:22,557 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 01:04:22,557 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 01:04:22,557 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-25 01:04:22,557 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 37 more)] === [2023-08-25 01:04:22,558 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 01:04:22,558 INFO L85 PathProgramCache]: Analyzing trace with hash 274404167, now seen corresponding path program 1 times [2023-08-25 01:04:22,558 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 01:04:22,558 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1853041799] [2023-08-25 01:04:22,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 01:04:22,558 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 01:04:22,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 01:04:22,678 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 01:04:22,678 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 01:04:22,678 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1853041799] [2023-08-25 01:04:22,678 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1853041799] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 01:04:22,678 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 01:04:22,678 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-25 01:04:22,678 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2137394360] [2023-08-25 01:04:22,678 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 01:04:22,679 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-25 01:04:22,679 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 01:04:22,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-25 01:04:22,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-08-25 01:04:22,679 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 218 [2023-08-25 01:04:22,680 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 22 transitions, 92 flow. Second operand has 4 states, 4 states have (on average 78.25) internal successors, (313), 4 states have internal predecessors, (313), 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 01:04:22,680 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 01:04:22,680 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 218 [2023-08-25 01:04:22,680 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 01:04:22,735 INFO L124 PetriNetUnfolderBase]: 106/202 cut-off events. [2023-08-25 01:04:22,736 INFO L125 PetriNetUnfolderBase]: For 84/84 co-relation queries the response was YES. [2023-08-25 01:04:22,736 INFO L83 FinitePrefix]: Finished finitePrefix Result has 641 conditions, 202 events. 106/202 cut-off events. For 84/84 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 594 event pairs, 37 based on Foata normal form. 17/219 useless extension candidates. Maximal degree in co-relation 633. Up to 76 conditions per place. [2023-08-25 01:04:22,737 INFO L140 encePairwiseOnDemand]: 213/218 looper letters, 36 selfloop transitions, 7 changer transitions 0/43 dead transitions. [2023-08-25 01:04:22,737 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 43 transitions, 255 flow [2023-08-25 01:04:22,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-25 01:04:22,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-25 01:04:22,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 340 transitions. [2023-08-25 01:04:22,738 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.38990825688073394 [2023-08-25 01:04:22,738 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 340 transitions. [2023-08-25 01:04:22,738 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 340 transitions. [2023-08-25 01:04:22,738 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 01:04:22,738 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 340 transitions. [2023-08-25 01:04:22,740 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 85.0) internal successors, (340), 4 states have internal predecessors, (340), 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 01:04:22,741 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 218.0) internal successors, (1090), 5 states have internal predecessors, (1090), 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 01:04:22,741 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 218.0) internal successors, (1090), 5 states have internal predecessors, (1090), 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 01:04:22,741 INFO L175 Difference]: Start difference. First operand has 33 places, 22 transitions, 92 flow. Second operand 4 states and 340 transitions. [2023-08-25 01:04:22,741 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 43 transitions, 255 flow [2023-08-25 01:04:22,741 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 43 transitions, 251 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-25 01:04:22,744 INFO L231 Difference]: Finished difference. Result has 36 places, 25 transitions, 128 flow [2023-08-25 01:04:22,744 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=218, PETRI_DIFFERENCE_MINUEND_FLOW=88, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=128, PETRI_PLACES=36, PETRI_TRANSITIONS=25} [2023-08-25 01:04:22,745 INFO L281 CegarLoopForPetriNet]: 51 programPoint places, -15 predicate places. [2023-08-25 01:04:22,745 INFO L495 AbstractCegarLoop]: Abstraction has has 36 places, 25 transitions, 128 flow [2023-08-25 01:04:22,746 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 78.25) internal successors, (313), 4 states have internal predecessors, (313), 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 01:04:22,746 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 01:04:22,746 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 01:04:22,746 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-25 01:04:22,746 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 37 more)] === [2023-08-25 01:04:22,746 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 01:04:22,746 INFO L85 PathProgramCache]: Analyzing trace with hash -1569226658, now seen corresponding path program 1 times [2023-08-25 01:04:22,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 01:04:22,746 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [237462724] [2023-08-25 01:04:22,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 01:04:22,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 01:04:22,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 01:04:22,778 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 01:04:22,778 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 01:04:22,778 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [237462724] [2023-08-25 01:04:22,778 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [237462724] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 01:04:22,778 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 01:04:22,778 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 01:04:22,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [319266328] [2023-08-25 01:04:22,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 01:04:22,779 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 01:04:22,779 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 01:04:22,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 01:04:22,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 01:04:22,779 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 218 [2023-08-25 01:04:22,779 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 25 transitions, 128 flow. Second operand has 3 states, 3 states have (on average 79.66666666666667) internal successors, (239), 3 states have internal predecessors, (239), 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 01:04:22,779 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 01:04:22,779 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 218 [2023-08-25 01:04:22,780 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 01:04:22,814 INFO L124 PetriNetUnfolderBase]: 116/230 cut-off events. [2023-08-25 01:04:22,814 INFO L125 PetriNetUnfolderBase]: For 290/290 co-relation queries the response was YES. [2023-08-25 01:04:22,814 INFO L83 FinitePrefix]: Finished finitePrefix Result has 807 conditions, 230 events. 116/230 cut-off events. For 290/290 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 713 event pairs, 76 based on Foata normal form. 6/236 useless extension candidates. Maximal degree in co-relation 798. Up to 186 conditions per place. [2023-08-25 01:04:22,815 INFO L140 encePairwiseOnDemand]: 215/218 looper letters, 28 selfloop transitions, 3 changer transitions 5/36 dead transitions. [2023-08-25 01:04:22,815 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 36 transitions, 268 flow [2023-08-25 01:04:22,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 01:04:22,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 01:04:22,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 249 transitions. [2023-08-25 01:04:22,816 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.38073394495412843 [2023-08-25 01:04:22,816 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 249 transitions. [2023-08-25 01:04:22,816 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 249 transitions. [2023-08-25 01:04:22,816 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 01:04:22,816 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 249 transitions. [2023-08-25 01:04:22,817 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 83.0) internal successors, (249), 3 states have internal predecessors, (249), 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 01:04:22,817 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 218.0) internal successors, (872), 4 states have internal predecessors, (872), 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 01:04:22,817 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 218.0) internal successors, (872), 4 states have internal predecessors, (872), 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 01:04:22,817 INFO L175 Difference]: Start difference. First operand has 36 places, 25 transitions, 128 flow. Second operand 3 states and 249 transitions. [2023-08-25 01:04:22,818 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 36 transitions, 268 flow [2023-08-25 01:04:22,818 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 36 transitions, 242 flow, removed 6 selfloop flow, removed 2 redundant places. [2023-08-25 01:04:22,819 INFO L231 Difference]: Finished difference. Result has 37 places, 25 transitions, 125 flow [2023-08-25 01:04:22,819 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=218, PETRI_DIFFERENCE_MINUEND_FLOW=114, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=125, PETRI_PLACES=37, PETRI_TRANSITIONS=25} [2023-08-25 01:04:22,819 INFO L281 CegarLoopForPetriNet]: 51 programPoint places, -14 predicate places. [2023-08-25 01:04:22,819 INFO L495 AbstractCegarLoop]: Abstraction has has 37 places, 25 transitions, 125 flow [2023-08-25 01:04:22,819 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 79.66666666666667) internal successors, (239), 3 states have internal predecessors, (239), 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 01:04:22,819 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 01:04:22,820 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 01:04:22,820 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-25 01:04:22,820 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 37 more)] === [2023-08-25 01:04:22,820 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 01:04:22,820 INFO L85 PathProgramCache]: Analyzing trace with hash -935410200, now seen corresponding path program 1 times [2023-08-25 01:04:22,820 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 01:04:22,820 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [439693068] [2023-08-25 01:04:22,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 01:04:22,820 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 01:04:22,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 01:04:22,902 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 01:04:22,902 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 01:04:22,902 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [439693068] [2023-08-25 01:04:22,902 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [439693068] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 01:04:22,902 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 01:04:22,902 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-25 01:04:22,902 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [309578710] [2023-08-25 01:04:22,903 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 01:04:22,903 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-25 01:04:22,903 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 01:04:22,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-25 01:04:22,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-08-25 01:04:22,904 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 218 [2023-08-25 01:04:22,904 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 25 transitions, 125 flow. Second operand has 5 states, 5 states have (on average 78.0) internal successors, (390), 5 states have internal predecessors, (390), 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 01:04:22,904 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 01:04:22,904 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 218 [2023-08-25 01:04:22,904 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 01:04:22,948 INFO L124 PetriNetUnfolderBase]: 101/197 cut-off events. [2023-08-25 01:04:22,948 INFO L125 PetriNetUnfolderBase]: For 188/188 co-relation queries the response was YES. [2023-08-25 01:04:22,948 INFO L83 FinitePrefix]: Finished finitePrefix Result has 649 conditions, 197 events. 101/197 cut-off events. For 188/188 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 603 event pairs, 35 based on Foata normal form. 11/208 useless extension candidates. Maximal degree in co-relation 639. Up to 78 conditions per place. [2023-08-25 01:04:22,949 INFO L140 encePairwiseOnDemand]: 213/218 looper letters, 21 selfloop transitions, 10 changer transitions 12/43 dead transitions. [2023-08-25 01:04:22,949 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 43 transitions, 291 flow [2023-08-25 01:04:22,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-25 01:04:22,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-25 01:04:22,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 415 transitions. [2023-08-25 01:04:22,950 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.38073394495412843 [2023-08-25 01:04:22,950 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 415 transitions. [2023-08-25 01:04:22,950 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 415 transitions. [2023-08-25 01:04:22,950 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 01:04:22,950 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 415 transitions. [2023-08-25 01:04:22,951 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 83.0) internal successors, (415), 5 states have internal predecessors, (415), 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 01:04:22,952 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 218.0) internal successors, (1308), 6 states have internal predecessors, (1308), 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 01:04:22,952 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 218.0) internal successors, (1308), 6 states have internal predecessors, (1308), 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 01:04:22,952 INFO L175 Difference]: Start difference. First operand has 37 places, 25 transitions, 125 flow. Second operand 5 states and 415 transitions. [2023-08-25 01:04:22,952 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 43 transitions, 291 flow [2023-08-25 01:04:22,953 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 43 transitions, 269 flow, removed 5 selfloop flow, removed 2 redundant places. [2023-08-25 01:04:22,954 INFO L231 Difference]: Finished difference. Result has 40 places, 23 transitions, 132 flow [2023-08-25 01:04:22,954 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=218, PETRI_DIFFERENCE_MINUEND_FLOW=114, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=132, PETRI_PLACES=40, PETRI_TRANSITIONS=23} [2023-08-25 01:04:22,954 INFO L281 CegarLoopForPetriNet]: 51 programPoint places, -11 predicate places. [2023-08-25 01:04:22,954 INFO L495 AbstractCegarLoop]: Abstraction has has 40 places, 23 transitions, 132 flow [2023-08-25 01:04:22,955 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 78.0) internal successors, (390), 5 states have internal predecessors, (390), 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 01:04:22,955 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 01:04:22,955 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 01:04:22,955 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-25 01:04:22,955 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 37 more)] === [2023-08-25 01:04:22,955 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 01:04:22,955 INFO L85 PathProgramCache]: Analyzing trace with hash -317813351, now seen corresponding path program 1 times [2023-08-25 01:04:22,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 01:04:22,956 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1137168073] [2023-08-25 01:04:22,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 01:04:22,957 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 01:04:22,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 01:04:23,012 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 01:04:23,013 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 01:04:23,014 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1137168073] [2023-08-25 01:04:23,014 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1137168073] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 01:04:23,014 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 01:04:23,014 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-25 01:04:23,014 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1399628791] [2023-08-25 01:04:23,015 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 01:04:23,015 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-25 01:04:23,015 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 01:04:23,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-25 01:04:23,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-25 01:04:23,016 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 218 [2023-08-25 01:04:23,016 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 23 transitions, 132 flow. Second operand has 4 states, 4 states have (on average 78.25) internal successors, (313), 4 states have internal predecessors, (313), 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 01:04:23,016 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 01:04:23,016 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 218 [2023-08-25 01:04:23,017 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 01:04:23,046 INFO L124 PetriNetUnfolderBase]: 21/55 cut-off events. [2023-08-25 01:04:23,046 INFO L125 PetriNetUnfolderBase]: For 97/97 co-relation queries the response was YES. [2023-08-25 01:04:23,047 INFO L83 FinitePrefix]: Finished finitePrefix Result has 219 conditions, 55 events. 21/55 cut-off events. For 97/97 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 81 event pairs, 7 based on Foata normal form. 1/56 useless extension candidates. Maximal degree in co-relation 209. Up to 27 conditions per place. [2023-08-25 01:04:23,047 INFO L140 encePairwiseOnDemand]: 215/218 looper letters, 0 selfloop transitions, 0 changer transitions 28/28 dead transitions. [2023-08-25 01:04:23,047 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 28 transitions, 220 flow [2023-08-25 01:04:23,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-25 01:04:23,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-25 01:04:23,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 317 transitions. [2023-08-25 01:04:23,048 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.36353211009174313 [2023-08-25 01:04:23,048 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 317 transitions. [2023-08-25 01:04:23,048 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 317 transitions. [2023-08-25 01:04:23,049 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 01:04:23,049 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 317 transitions. [2023-08-25 01:04:23,049 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 79.25) internal successors, (317), 4 states have internal predecessors, (317), 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 01:04:23,050 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 218.0) internal successors, (1090), 5 states have internal predecessors, (1090), 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 01:04:23,050 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 218.0) internal successors, (1090), 5 states have internal predecessors, (1090), 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 01:04:23,050 INFO L175 Difference]: Start difference. First operand has 40 places, 23 transitions, 132 flow. Second operand 4 states and 317 transitions. [2023-08-25 01:04:23,051 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 28 transitions, 220 flow [2023-08-25 01:04:23,052 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 28 transitions, 180 flow, removed 6 selfloop flow, removed 7 redundant places. [2023-08-25 01:04:23,052 INFO L231 Difference]: Finished difference. Result has 35 places, 0 transitions, 0 flow [2023-08-25 01:04:23,052 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=218, PETRI_DIFFERENCE_MINUEND_FLOW=94, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=35, PETRI_TRANSITIONS=0} [2023-08-25 01:04:23,053 INFO L281 CegarLoopForPetriNet]: 51 programPoint places, -16 predicate places. [2023-08-25 01:04:23,053 INFO L495 AbstractCegarLoop]: Abstraction has has 35 places, 0 transitions, 0 flow [2023-08-25 01:04:23,053 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 78.25) internal successors, (313), 4 states have internal predecessors, (313), 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 01:04:23,055 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONDATA_RACE (40 of 41 remaining) [2023-08-25 01:04:23,055 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONDATA_RACE (39 of 41 remaining) [2023-08-25 01:04:23,055 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err2ASSERT_VIOLATIONDATA_RACE (38 of 41 remaining) [2023-08-25 01:04:23,055 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err3ASSERT_VIOLATIONDATA_RACE (37 of 41 remaining) [2023-08-25 01:04:23,055 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err4ASSERT_VIOLATIONDATA_RACE (36 of 41 remaining) [2023-08-25 01:04:23,056 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONDATA_RACE (35 of 41 remaining) [2023-08-25 01:04:23,056 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONDATA_RACE (34 of 41 remaining) [2023-08-25 01:04:23,056 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err2ASSERT_VIOLATIONDATA_RACE (33 of 41 remaining) [2023-08-25 01:04:23,056 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err3ASSERT_VIOLATIONDATA_RACE (32 of 41 remaining) [2023-08-25 01:04:23,056 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONDATA_RACE (31 of 41 remaining) [2023-08-25 01:04:23,057 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONDATA_RACE (30 of 41 remaining) [2023-08-25 01:04:23,057 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err2ASSERT_VIOLATIONDATA_RACE (29 of 41 remaining) [2023-08-25 01:04:23,057 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err3ASSERT_VIOLATIONDATA_RACE (28 of 41 remaining) [2023-08-25 01:04:23,057 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err4ASSERT_VIOLATIONDATA_RACE (27 of 41 remaining) [2023-08-25 01:04:23,057 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (26 of 41 remaining) [2023-08-25 01:04:23,057 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (25 of 41 remaining) [2023-08-25 01:04:23,057 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (24 of 41 remaining) [2023-08-25 01:04:23,057 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (23 of 41 remaining) [2023-08-25 01:04:23,057 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (22 of 41 remaining) [2023-08-25 01:04:23,058 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (21 of 41 remaining) [2023-08-25 01:04:23,058 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (20 of 41 remaining) [2023-08-25 01:04:23,058 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (19 of 41 remaining) [2023-08-25 01:04:23,058 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (18 of 41 remaining) [2023-08-25 01:04:23,058 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONASSERT (17 of 41 remaining) [2023-08-25 01:04:23,058 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (16 of 41 remaining) [2023-08-25 01:04:23,058 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (15 of 41 remaining) [2023-08-25 01:04:23,058 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (14 of 41 remaining) [2023-08-25 01:04:23,058 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONDATA_RACE (13 of 41 remaining) [2023-08-25 01:04:23,058 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONDATA_RACE (12 of 41 remaining) [2023-08-25 01:04:23,058 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err2ASSERT_VIOLATIONDATA_RACE (11 of 41 remaining) [2023-08-25 01:04:23,059 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err3ASSERT_VIOLATIONDATA_RACE (10 of 41 remaining) [2023-08-25 01:04:23,059 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err4ASSERT_VIOLATIONDATA_RACE (9 of 41 remaining) [2023-08-25 01:04:23,059 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONDATA_RACE (8 of 41 remaining) [2023-08-25 01:04:23,059 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONDATA_RACE (7 of 41 remaining) [2023-08-25 01:04:23,059 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err2ASSERT_VIOLATIONDATA_RACE (6 of 41 remaining) [2023-08-25 01:04:23,059 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err3ASSERT_VIOLATIONDATA_RACE (5 of 41 remaining) [2023-08-25 01:04:23,059 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONDATA_RACE (4 of 41 remaining) [2023-08-25 01:04:23,059 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONDATA_RACE (3 of 41 remaining) [2023-08-25 01:04:23,059 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err2ASSERT_VIOLATIONDATA_RACE (2 of 41 remaining) [2023-08-25 01:04:23,059 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err3ASSERT_VIOLATIONDATA_RACE (1 of 41 remaining) [2023-08-25 01:04:23,059 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err4ASSERT_VIOLATIONDATA_RACE (0 of 41 remaining) [2023-08-25 01:04:23,060 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-25 01:04:23,060 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 01:04:23,063 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-25 01:04:23,063 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-25 01:04:23,066 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.08 01:04:23 BasicIcfg [2023-08-25 01:04:23,066 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-25 01:04:23,066 INFO L158 Benchmark]: Toolchain (without parser) took 6457.14ms. Allocated memory was 339.7MB in the beginning and 490.7MB in the end (delta: 151.0MB). Free memory was 314.5MB in the beginning and 441.3MB in the end (delta: -126.8MB). Peak memory consumption was 23.8MB. Max. memory is 16.0GB. [2023-08-25 01:04:23,066 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 339.7MB. Free memory is still 317.7MB. There was no memory consumed. Max. memory is 16.0GB. [2023-08-25 01:04:23,067 INFO L158 Benchmark]: CACSL2BoogieTranslator took 355.59ms. Allocated memory is still 339.7MB. Free memory was 314.5MB in the beginning and 293.4MB in the end (delta: 21.1MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. [2023-08-25 01:04:23,067 INFO L158 Benchmark]: Boogie Procedure Inliner took 27.26ms. Allocated memory is still 339.7MB. Free memory was 293.4MB in the beginning and 291.4MB in the end (delta: 2.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.0GB. [2023-08-25 01:04:23,067 INFO L158 Benchmark]: Boogie Preprocessor took 33.68ms. Allocated memory is still 339.7MB. Free memory was 291.4MB in the beginning and 290.0MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.0GB. [2023-08-25 01:04:23,067 INFO L158 Benchmark]: RCFGBuilder took 561.35ms. Allocated memory is still 339.7MB. Free memory was 290.0MB in the beginning and 257.9MB in the end (delta: 32.2MB). Peak memory consumption was 33.6MB. Max. memory is 16.0GB. [2023-08-25 01:04:23,068 INFO L158 Benchmark]: TraceAbstraction took 5471.54ms. Allocated memory was 339.7MB in the beginning and 490.7MB in the end (delta: 151.0MB). Free memory was 256.9MB in the beginning and 441.3MB in the end (delta: -184.4MB). There was no memory consumed. Max. memory is 16.0GB. [2023-08-25 01:04:23,068 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 339.7MB. Free memory is still 317.7MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 355.59ms. Allocated memory is still 339.7MB. Free memory was 314.5MB in the beginning and 293.4MB in the end (delta: 21.1MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 27.26ms. Allocated memory is still 339.7MB. Free memory was 293.4MB in the beginning and 291.4MB in the end (delta: 2.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.0GB. * Boogie Preprocessor took 33.68ms. Allocated memory is still 339.7MB. Free memory was 291.4MB in the beginning and 290.0MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.0GB. * RCFGBuilder took 561.35ms. Allocated memory is still 339.7MB. Free memory was 290.0MB in the beginning and 257.9MB in the end (delta: 32.2MB). Peak memory consumption was 33.6MB. Max. memory is 16.0GB. * TraceAbstraction took 5471.54ms. Allocated memory was 339.7MB in the beginning and 490.7MB in the end (delta: 151.0MB). Free memory was 256.9MB in the beginning and 441.3MB in the end (delta: -184.4MB). There was no memory consumed. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 267]: Unsoundness Warning unspecified type, defaulting to int C: short [267] - GenericResultAtLocation [Line: 267]: Unsoundness Warning unspecified type, defaulting to int C: short [267] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.6s, 119 PlacesBefore, 51 PlacesAfterwards, 112 TransitionsBefore, 41 TransitionsAfterwards, 4010 CoEnabledTransitionPairs, 7 FixpointIterations, 19 TrivialSequentialCompositions, 71 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 10 ConcurrentYvCompositions, 3 ChoiceCompositions, 103 TotalNumberOfCompositions, 14553 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 5113, independent: 4807, independent conditional: 0, independent unconditional: 4807, dependent: 306, dependent conditional: 0, dependent unconditional: 306, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 2178, independent: 2108, independent conditional: 0, independent unconditional: 2108, dependent: 70, dependent conditional: 0, dependent unconditional: 70, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 5113, independent: 2699, independent conditional: 0, independent unconditional: 2699, dependent: 236, dependent conditional: 0, dependent unconditional: 236, unknown: 2178, unknown conditional: 0, unknown unconditional: 2178] , Statistics on independence cache: Total cache size (in pairs): 284, Positive cache size: 256, Positive conditional cache size: 0, Positive unconditional cache size: 256, Negative cache size: 28, Negative conditional cache size: 0, Negative unconditional cache size: 28, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 723]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 728]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 728]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 733]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 733]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 740]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 743]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 748]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 748]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 755]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 755]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 758]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 763]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 763]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 785]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 785]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 787]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 791]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 791]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 791]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 791]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 791]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 793]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 17]: assertion always holds For all program executions holds that assertion always holds at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 151 locations, 41 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: 5.4s, OverallIterations: 10, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.7s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 101 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 101 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 7 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 396 IncrementalHoareTripleChecker+Invalid, 403 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 7 mSolverCounterUnsat, 0 mSDtfsCounter, 396 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 26 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=132occurred in iteration=9, InterpolantAutomatonStates: 36, 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, 0.7s InterpolantComputationTime, 112 NumberOfCodeBlocks, 112 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 102 ConstructedInterpolants, 0 QuantifiedInterpolants, 246 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 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 - AllSpecificationsHoldResult: All specifications hold 24 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-25 01:04:23,087 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...