/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/safe017_tso.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-25 01:16:13,009 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-25 01:16:13,075 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 01:16:13,079 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-25 01:16:13,079 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-25 01:16:13,094 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-25 01:16:13,094 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-25 01:16:13,094 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-25 01:16:13,095 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-25 01:16:13,095 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-25 01:16:13,095 INFO L153 SettingsManager]: * Use SBE=true [2023-08-25 01:16:13,096 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-25 01:16:13,096 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-25 01:16:13,096 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-25 01:16:13,096 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-25 01:16:13,097 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-25 01:16:13,097 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-25 01:16:13,097 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-25 01:16:13,097 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-25 01:16:13,098 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-25 01:16:13,098 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-25 01:16:13,101 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-25 01:16:13,101 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-25 01:16:13,101 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-25 01:16:13,104 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-25 01:16:13,104 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-25 01:16:13,104 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-25 01:16:13,104 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 01:16:13,104 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-25 01:16:13,105 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-25 01:16:13,105 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-25 01:16:13,105 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-25 01:16:13,105 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-25 01:16:13,106 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-25 01:16:13,106 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-25 01:16:13,106 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true [2023-08-25 01:16:13,339 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-25 01:16:13,351 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-25 01:16:13,353 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-25 01:16:13,353 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-25 01:16:13,354 INFO L274 PluginConnector]: CDTParser initialized [2023-08-25 01:16:13,355 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe017_tso.i [2023-08-25 01:16:14,380 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-25 01:16:14,587 INFO L384 CDTParser]: Found 1 translation units. [2023-08-25 01:16:14,587 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe017_tso.i [2023-08-25 01:16:14,598 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/70ca4b44c/61538b7190c74eb780fa083cd3104db3/FLAG79b49b065 [2023-08-25 01:16:14,611 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/70ca4b44c/61538b7190c74eb780fa083cd3104db3 [2023-08-25 01:16:14,615 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-25 01:16:14,616 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-25 01:16:14,618 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-25 01:16:14,618 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-25 01:16:14,620 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-25 01:16:14,621 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 01:16:14" (1/1) ... [2023-08-25 01:16:14,622 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@610bf30c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 01:16:14, skipping insertion in model container [2023-08-25 01:16:14,622 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 01:16:14" (1/1) ... [2023-08-25 01:16:14,661 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-25 01:16:14,916 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 01:16:14,925 INFO L201 MainTranslator]: Completed pre-run [2023-08-25 01:16:14,947 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [267] [2023-08-25 01:16:14,948 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [267] [2023-08-25 01:16:14,968 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 01:16:14,993 WARN L669 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-25 01:16:14,994 WARN L669 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-25 01:16:14,998 INFO L206 MainTranslator]: Completed translation [2023-08-25 01:16:15,000 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 01:16:14 WrapperNode [2023-08-25 01:16:15,000 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-25 01:16:15,001 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-25 01:16:15,001 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-25 01:16:15,001 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-25 01:16:15,005 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 01:16:14" (1/1) ... [2023-08-25 01:16:15,027 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 01:16:14" (1/1) ... [2023-08-25 01:16:15,045 INFO L138 Inliner]: procedures = 176, calls = 52, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 100 [2023-08-25 01:16:15,046 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-25 01:16:15,047 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-25 01:16:15,047 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-25 01:16:15,047 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-25 01:16:15,052 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 01:16:14" (1/1) ... [2023-08-25 01:16:15,053 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 01:16:14" (1/1) ... [2023-08-25 01:16:15,065 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 01:16:14" (1/1) ... [2023-08-25 01:16:15,065 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 01:16:14" (1/1) ... [2023-08-25 01:16:15,068 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 01:16:14" (1/1) ... [2023-08-25 01:16:15,069 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 01:16:14" (1/1) ... [2023-08-25 01:16:15,093 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 01:16:14" (1/1) ... [2023-08-25 01:16:15,094 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 01:16:14" (1/1) ... [2023-08-25 01:16:15,096 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-25 01:16:15,096 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-25 01:16:15,096 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-25 01:16:15,096 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-25 01:16:15,097 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 01:16:14" (1/1) ... [2023-08-25 01:16:15,101 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 01:16:15,127 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 01:16:15,135 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 01:16:15,152 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 01:16:15,177 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-25 01:16:15,177 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-08-25 01:16:15,178 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-25 01:16:15,178 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-25 01:16:15,178 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-25 01:16:15,178 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-08-25 01:16:15,178 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-08-25 01:16:15,178 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-08-25 01:16:15,178 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-08-25 01:16:15,178 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-08-25 01:16:15,178 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-08-25 01:16:15,178 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-25 01:16:15,178 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-08-25 01:16:15,178 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-25 01:16:15,179 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-25 01:16:15,180 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 01:16:15,314 INFO L236 CfgBuilder]: Building ICFG [2023-08-25 01:16:15,315 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-25 01:16:15,567 INFO L277 CfgBuilder]: Performing block encoding [2023-08-25 01:16:15,661 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-25 01:16:15,661 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-25 01:16:15,663 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 01:16:15 BoogieIcfgContainer [2023-08-25 01:16:15,663 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-25 01:16:15,664 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-25 01:16:15,664 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-25 01:16:15,669 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-25 01:16:15,670 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.08 01:16:14" (1/3) ... [2023-08-25 01:16:15,670 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d718e54 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 01:16:15, skipping insertion in model container [2023-08-25 01:16:15,670 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 01:16:14" (2/3) ... [2023-08-25 01:16:15,670 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d718e54 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 01:16:15, skipping insertion in model container [2023-08-25 01:16:15,671 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 01:16:15" (3/3) ... [2023-08-25 01:16:15,671 INFO L112 eAbstractionObserver]: Analyzing ICFG safe017_tso.i [2023-08-25 01:16:15,683 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-25 01:16:15,683 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 21 error locations. [2023-08-25 01:16:15,683 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-25 01:16:15,712 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-25 01:16:15,733 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 117 places, 110 transitions, 235 flow [2023-08-25 01:16:15,765 INFO L124 PetriNetUnfolderBase]: 3/107 cut-off events. [2023-08-25 01:16:15,766 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 01:16:15,770 INFO L83 FinitePrefix]: Finished finitePrefix Result has 117 conditions, 107 events. 3/107 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 120 event pairs, 0 based on Foata normal form. 0/83 useless extension candidates. Maximal degree in co-relation 91. Up to 2 conditions per place. [2023-08-25 01:16:15,770 INFO L82 GeneralOperation]: Start removeDead. Operand has 117 places, 110 transitions, 235 flow [2023-08-25 01:16:15,773 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 114 places, 107 transitions, 223 flow [2023-08-25 01:16:15,776 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-25 01:16:15,785 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 114 places, 107 transitions, 223 flow [2023-08-25 01:16:15,790 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 114 places, 107 transitions, 223 flow [2023-08-25 01:16:15,790 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 114 places, 107 transitions, 223 flow [2023-08-25 01:16:15,819 INFO L124 PetriNetUnfolderBase]: 3/107 cut-off events. [2023-08-25 01:16:15,819 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 01:16:15,819 INFO L83 FinitePrefix]: Finished finitePrefix Result has 117 conditions, 107 events. 3/107 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 120 event pairs, 0 based on Foata normal form. 0/83 useless extension candidates. Maximal degree in co-relation 91. Up to 2 conditions per place. [2023-08-25 01:16:15,821 INFO L119 LiptonReduction]: Number of co-enabled transitions 3500 [2023-08-25 01:16:18,924 INFO L134 LiptonReduction]: Checked pairs total: 13309 [2023-08-25 01:16:18,925 INFO L136 LiptonReduction]: Total number of compositions: 106 [2023-08-25 01:16:18,955 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-25 01:16:18,961 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;@662e314d, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-25 01:16:18,961 INFO L358 AbstractCegarLoop]: Starting to check reachability of 36 error locations. [2023-08-25 01:16:18,964 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-25 01:16:18,964 INFO L124 PetriNetUnfolderBase]: 0/2 cut-off events. [2023-08-25 01:16:18,964 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 01:16:18,965 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 01:16:18,965 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-25 01:16:18,965 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONDATA_RACE === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2023-08-25 01:16:18,968 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 01:16:18,968 INFO L85 PathProgramCache]: Analyzing trace with hash 553035, now seen corresponding path program 1 times [2023-08-25 01:16:18,974 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 01:16:18,974 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [482253375] [2023-08-25 01:16:18,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 01:16:18,975 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 01:16:19,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 01:16:19,107 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 01:16:19,107 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 01:16:19,107 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [482253375] [2023-08-25 01:16:19,108 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [482253375] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 01:16:19,108 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 01:16:19,108 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-25 01:16:19,109 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [603357339] [2023-08-25 01:16:19,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 01:16:19,117 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-25 01:16:19,120 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 01:16:19,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-25 01:16:19,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-25 01:16:19,140 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 216 [2023-08-25 01:16:19,142 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 37 transitions, 83 flow. Second operand has 2 states, 2 states have (on average 76.5) internal successors, (153), 2 states have internal predecessors, (153), 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 01:16:19,142 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 01:16:19,142 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 216 [2023-08-25 01:16:19,142 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 01:16:19,248 INFO L124 PetriNetUnfolderBase]: 409/634 cut-off events. [2023-08-25 01:16:19,248 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2023-08-25 01:16:19,252 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1307 conditions, 634 events. 409/634 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 2215 event pairs, 409 based on Foata normal form. 0/586 useless extension candidates. Maximal degree in co-relation 1296. Up to 635 conditions per place. [2023-08-25 01:16:19,255 INFO L140 encePairwiseOnDemand]: 196/216 looper letters, 16 selfloop transitions, 0 changer transitions 1/17 dead transitions. [2023-08-25 01:16:19,255 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 28 places, 17 transitions, 77 flow [2023-08-25 01:16:19,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-25 01:16:19,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-25 01:16:19,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 187 transitions. [2023-08-25 01:16:19,264 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43287037037037035 [2023-08-25 01:16:19,265 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 187 transitions. [2023-08-25 01:16:19,265 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 187 transitions. [2023-08-25 01:16:19,266 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 01:16:19,268 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 187 transitions. [2023-08-25 01:16:19,272 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 93.5) internal successors, (187), 2 states have internal predecessors, (187), 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 01:16:19,275 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 216.0) internal successors, (648), 3 states have internal predecessors, (648), 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 01:16:19,275 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 216.0) internal successors, (648), 3 states have internal predecessors, (648), 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 01:16:19,277 INFO L175 Difference]: Start difference. First operand has 47 places, 37 transitions, 83 flow. Second operand 2 states and 187 transitions. [2023-08-25 01:16:19,277 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 28 places, 17 transitions, 77 flow [2023-08-25 01:16:19,280 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 25 places, 17 transitions, 74 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-08-25 01:16:19,280 INFO L231 Difference]: Finished difference. Result has 25 places, 16 transitions, 38 flow [2023-08-25 01:16:19,281 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=216, PETRI_DIFFERENCE_MINUEND_FLOW=40, PETRI_DIFFERENCE_MINUEND_PLACES=24, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=38, PETRI_PLACES=25, PETRI_TRANSITIONS=16} [2023-08-25 01:16:19,284 INFO L281 CegarLoopForPetriNet]: 47 programPoint places, -22 predicate places. [2023-08-25 01:16:19,284 INFO L495 AbstractCegarLoop]: Abstraction has has 25 places, 16 transitions, 38 flow [2023-08-25 01:16:19,285 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 76.5) internal successors, (153), 2 states have internal predecessors, (153), 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 01:16:19,285 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 01:16:19,285 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 01:16:19,285 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-25 01:16:19,286 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2023-08-25 01:16:19,292 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 01:16:19,292 INFO L85 PathProgramCache]: Analyzing trace with hash -834928905, now seen corresponding path program 1 times [2023-08-25 01:16:19,292 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 01:16:19,292 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [512389023] [2023-08-25 01:16:19,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 01:16:19,293 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 01:16:19,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 01:16:19,397 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 01:16:19,397 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 01:16:19,397 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [512389023] [2023-08-25 01:16:19,397 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [512389023] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 01:16:19,398 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 01:16:19,398 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-25 01:16:19,398 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2077751125] [2023-08-25 01:16:19,398 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 01:16:19,398 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 01:16:19,399 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 01:16:19,399 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 01:16:19,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 01:16:19,400 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 216 [2023-08-25 01:16:19,400 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 25 places, 16 transitions, 38 flow. Second operand has 3 states, 3 states have (on average 76.66666666666667) internal successors, (230), 3 states have internal predecessors, (230), 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 01:16:19,400 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 01:16:19,400 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 216 [2023-08-25 01:16:19,400 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 01:16:19,474 INFO L124 PetriNetUnfolderBase]: 289/460 cut-off events. [2023-08-25 01:16:19,474 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 01:16:19,475 INFO L83 FinitePrefix]: Finished finitePrefix Result has 957 conditions, 460 events. 289/460 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 1638 event pairs, 82 based on Foata normal form. 6/466 useless extension candidates. Maximal degree in co-relation 954. Up to 427 conditions per place. [2023-08-25 01:16:19,476 INFO L140 encePairwiseOnDemand]: 212/216 looper letters, 23 selfloop transitions, 3 changer transitions 0/26 dead transitions. [2023-08-25 01:16:19,476 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 26 places, 26 transitions, 114 flow [2023-08-25 01:16:19,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 01:16:19,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 01:16:19,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 249 transitions. [2023-08-25 01:16:19,478 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.38425925925925924 [2023-08-25 01:16:19,478 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 249 transitions. [2023-08-25 01:16:19,478 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 249 transitions. [2023-08-25 01:16:19,478 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 01:16:19,479 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 249 transitions. [2023-08-25 01:16:19,479 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 01:16:19,480 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 216.0) internal successors, (864), 4 states have internal predecessors, (864), 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 01:16:19,481 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 216.0) internal successors, (864), 4 states have internal predecessors, (864), 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 01:16:19,481 INFO L175 Difference]: Start difference. First operand has 25 places, 16 transitions, 38 flow. Second operand 3 states and 249 transitions. [2023-08-25 01:16:19,481 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 26 places, 26 transitions, 114 flow [2023-08-25 01:16:19,481 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 26 places, 26 transitions, 114 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 01:16:19,481 INFO L231 Difference]: Finished difference. Result has 27 places, 18 transitions, 57 flow [2023-08-25 01:16:19,482 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=216, PETRI_DIFFERENCE_MINUEND_FLOW=38, PETRI_DIFFERENCE_MINUEND_PLACES=24, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=16, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=57, PETRI_PLACES=27, PETRI_TRANSITIONS=18} [2023-08-25 01:16:19,482 INFO L281 CegarLoopForPetriNet]: 47 programPoint places, -20 predicate places. [2023-08-25 01:16:19,482 INFO L495 AbstractCegarLoop]: Abstraction has has 27 places, 18 transitions, 57 flow [2023-08-25 01:16:19,482 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 76.66666666666667) internal successors, (230), 3 states have internal predecessors, (230), 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 01:16:19,483 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 01:16:19,483 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 01:16:19,483 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-25 01:16:19,483 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2023-08-25 01:16:19,483 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 01:16:19,483 INFO L85 PathProgramCache]: Analyzing trace with hash -112994038, now seen corresponding path program 1 times [2023-08-25 01:16:19,483 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 01:16:19,484 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1175277623] [2023-08-25 01:16:19,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 01:16:19,484 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 01:16:19,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 01:16:19,566 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 01:16:19,567 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 01:16:19,567 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1175277623] [2023-08-25 01:16:19,567 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1175277623] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 01:16:19,567 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 01:16:19,567 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-25 01:16:19,567 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [878199693] [2023-08-25 01:16:19,567 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 01:16:19,568 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 01:16:19,568 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 01:16:19,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 01:16:19,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 01:16:19,569 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 216 [2023-08-25 01:16:19,569 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 18 transitions, 57 flow. Second operand has 3 states, 3 states have (on average 77.0) internal successors, (231), 3 states have internal predecessors, (231), 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 01:16:19,569 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 01:16:19,569 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 216 [2023-08-25 01:16:19,569 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 01:16:19,614 INFO L124 PetriNetUnfolderBase]: 268/430 cut-off events. [2023-08-25 01:16:19,614 INFO L125 PetriNetUnfolderBase]: For 46/46 co-relation queries the response was YES. [2023-08-25 01:16:19,615 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1030 conditions, 430 events. 268/430 cut-off events. For 46/46 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 1422 event pairs, 84 based on Foata normal form. 9/439 useless extension candidates. Maximal degree in co-relation 1025. Up to 311 conditions per place. [2023-08-25 01:16:19,616 INFO L140 encePairwiseOnDemand]: 213/216 looper letters, 22 selfloop transitions, 2 changer transitions 0/24 dead transitions. [2023-08-25 01:16:19,616 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 29 places, 24 transitions, 120 flow [2023-08-25 01:16:19,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 01:16:19,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 01:16:19,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 245 transitions. [2023-08-25 01:16:19,618 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.37808641975308643 [2023-08-25 01:16:19,618 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 245 transitions. [2023-08-25 01:16:19,618 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 245 transitions. [2023-08-25 01:16:19,618 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 01:16:19,618 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 245 transitions. [2023-08-25 01:16:19,619 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 81.66666666666667) internal successors, (245), 3 states have internal predecessors, (245), 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 01:16:19,622 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 216.0) internal successors, (864), 4 states have internal predecessors, (864), 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 01:16:19,622 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 216.0) internal successors, (864), 4 states have internal predecessors, (864), 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 01:16:19,622 INFO L175 Difference]: Start difference. First operand has 27 places, 18 transitions, 57 flow. Second operand 3 states and 245 transitions. [2023-08-25 01:16:19,622 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 29 places, 24 transitions, 120 flow [2023-08-25 01:16:19,622 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 24 transitions, 116 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-25 01:16:19,623 INFO L231 Difference]: Finished difference. Result has 29 places, 18 transitions, 62 flow [2023-08-25 01:16:19,623 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=216, PETRI_DIFFERENCE_MINUEND_FLOW=54, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=62, PETRI_PLACES=29, PETRI_TRANSITIONS=18} [2023-08-25 01:16:19,624 INFO L281 CegarLoopForPetriNet]: 47 programPoint places, -18 predicate places. [2023-08-25 01:16:19,624 INFO L495 AbstractCegarLoop]: Abstraction has has 29 places, 18 transitions, 62 flow [2023-08-25 01:16:19,624 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 77.0) internal successors, (231), 3 states have internal predecessors, (231), 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 01:16:19,624 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 01:16:19,624 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 01:16:19,624 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-25 01:16:19,627 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2023-08-25 01:16:19,627 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 01:16:19,627 INFO L85 PathProgramCache]: Analyzing trace with hash -1258198948, now seen corresponding path program 1 times [2023-08-25 01:16:19,627 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 01:16:19,627 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1409497702] [2023-08-25 01:16:19,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 01:16:19,627 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 01:16:19,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 01:16:19,702 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 01:16:19,702 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 01:16:19,702 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1409497702] [2023-08-25 01:16:19,702 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1409497702] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 01:16:19,702 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 01:16:19,702 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 01:16:19,702 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [220426589] [2023-08-25 01:16:19,703 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 01:16:19,703 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-25 01:16:19,703 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 01:16:19,703 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-25 01:16:19,703 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-25 01:16:19,704 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 216 [2023-08-25 01:16:19,704 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 29 places, 18 transitions, 62 flow. Second operand has 4 states, 4 states have (on average 75.5) internal successors, (302), 4 states have internal predecessors, (302), 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 01:16:19,704 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 01:16:19,704 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 216 [2023-08-25 01:16:19,704 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 01:16:19,786 INFO L124 PetriNetUnfolderBase]: 343/560 cut-off events. [2023-08-25 01:16:19,786 INFO L125 PetriNetUnfolderBase]: For 222/222 co-relation queries the response was YES. [2023-08-25 01:16:19,787 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1366 conditions, 560 events. 343/560 cut-off events. For 222/222 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 2236 event pairs, 51 based on Foata normal form. 33/593 useless extension candidates. Maximal degree in co-relation 1360. Up to 268 conditions per place. [2023-08-25 01:16:19,788 INFO L140 encePairwiseOnDemand]: 211/216 looper letters, 28 selfloop transitions, 4 changer transitions 9/41 dead transitions. [2023-08-25 01:16:19,788 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 41 transitions, 213 flow [2023-08-25 01:16:19,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-25 01:16:19,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-25 01:16:19,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 329 transitions. [2023-08-25 01:16:19,789 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.38078703703703703 [2023-08-25 01:16:19,790 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 329 transitions. [2023-08-25 01:16:19,790 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 329 transitions. [2023-08-25 01:16:19,790 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 01:16:19,790 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 329 transitions. [2023-08-25 01:16:19,790 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 82.25) internal successors, (329), 4 states have internal predecessors, (329), 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 01:16:19,792 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 216.0) internal successors, (1080), 5 states have internal predecessors, (1080), 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 01:16:19,792 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 216.0) internal successors, (1080), 5 states have internal predecessors, (1080), 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 01:16:19,792 INFO L175 Difference]: Start difference. First operand has 29 places, 18 transitions, 62 flow. Second operand 4 states and 329 transitions. [2023-08-25 01:16:19,792 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 41 transitions, 213 flow [2023-08-25 01:16:19,793 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 41 transitions, 207 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-25 01:16:19,793 INFO L231 Difference]: Finished difference. Result has 32 places, 20 transitions, 84 flow [2023-08-25 01:16:19,793 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=216, PETRI_DIFFERENCE_MINUEND_FLOW=58, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=84, PETRI_PLACES=32, PETRI_TRANSITIONS=20} [2023-08-25 01:16:19,794 INFO L281 CegarLoopForPetriNet]: 47 programPoint places, -15 predicate places. [2023-08-25 01:16:19,794 INFO L495 AbstractCegarLoop]: Abstraction has has 32 places, 20 transitions, 84 flow [2023-08-25 01:16:19,794 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 75.5) internal successors, (302), 4 states have internal predecessors, (302), 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 01:16:19,794 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 01:16:19,794 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 01:16:19,795 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-25 01:16:19,795 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2023-08-25 01:16:19,795 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 01:16:19,795 INFO L85 PathProgramCache]: Analyzing trace with hash -349521050, now seen corresponding path program 1 times [2023-08-25 01:16:19,795 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 01:16:19,795 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [823745836] [2023-08-25 01:16:19,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 01:16:19,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 01:16:19,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 01:16:19,828 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 01:16:19,829 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 01:16:19,829 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [823745836] [2023-08-25 01:16:19,829 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [823745836] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 01:16:19,829 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 01:16:19,829 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-25 01:16:19,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [757884998] [2023-08-25 01:16:19,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 01:16:19,829 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-25 01:16:19,829 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 01:16:19,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-25 01:16:19,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-25 01:16:19,830 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 216 [2023-08-25 01:16:19,830 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 20 transitions, 84 flow. Second operand has 4 states, 4 states have (on average 75.75) internal successors, (303), 4 states have internal predecessors, (303), 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 01:16:19,831 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 01:16:19,831 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 216 [2023-08-25 01:16:19,831 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 01:16:19,903 INFO L124 PetriNetUnfolderBase]: 324/563 cut-off events. [2023-08-25 01:16:19,903 INFO L125 PetriNetUnfolderBase]: For 585/585 co-relation queries the response was YES. [2023-08-25 01:16:19,903 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1508 conditions, 563 events. 324/563 cut-off events. For 585/585 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 2410 event pairs, 114 based on Foata normal form. 42/605 useless extension candidates. Maximal degree in co-relation 1500. Up to 268 conditions per place. [2023-08-25 01:16:19,904 INFO L140 encePairwiseOnDemand]: 212/216 looper letters, 26 selfloop transitions, 3 changer transitions 12/41 dead transitions. [2023-08-25 01:16:19,904 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 41 transitions, 224 flow [2023-08-25 01:16:19,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-25 01:16:19,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-25 01:16:19,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 406 transitions. [2023-08-25 01:16:19,906 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.37592592592592594 [2023-08-25 01:16:19,906 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 406 transitions. [2023-08-25 01:16:19,906 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 406 transitions. [2023-08-25 01:16:19,906 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 01:16:19,906 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 406 transitions. [2023-08-25 01:16:19,907 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 81.2) internal successors, (406), 5 states have internal predecessors, (406), 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 01:16:19,908 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 216.0) internal successors, (1296), 6 states have internal predecessors, (1296), 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 01:16:19,909 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 216.0) internal successors, (1296), 6 states have internal predecessors, (1296), 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 01:16:19,909 INFO L175 Difference]: Start difference. First operand has 32 places, 20 transitions, 84 flow. Second operand 5 states and 406 transitions. [2023-08-25 01:16:19,909 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 41 transitions, 224 flow [2023-08-25 01:16:19,910 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 41 transitions, 215 flow, removed 1 selfloop flow, removed 2 redundant places. [2023-08-25 01:16:19,910 INFO L231 Difference]: Finished difference. Result has 37 places, 20 transitions, 94 flow [2023-08-25 01:16:19,910 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=216, PETRI_DIFFERENCE_MINUEND_FLOW=77, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=94, PETRI_PLACES=37, PETRI_TRANSITIONS=20} [2023-08-25 01:16:19,911 INFO L281 CegarLoopForPetriNet]: 47 programPoint places, -10 predicate places. [2023-08-25 01:16:19,911 INFO L495 AbstractCegarLoop]: Abstraction has has 37 places, 20 transitions, 94 flow [2023-08-25 01:16:19,911 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 75.75) internal successors, (303), 4 states have internal predecessors, (303), 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 01:16:19,911 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 01:16:19,911 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 01:16:19,911 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-25 01:16:19,911 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2023-08-25 01:16:19,912 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 01:16:19,912 INFO L85 PathProgramCache]: Analyzing trace with hash -318669106, now seen corresponding path program 1 times [2023-08-25 01:16:19,912 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 01:16:19,912 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1769190351] [2023-08-25 01:16:19,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 01:16:19,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 01:16:19,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 01:16:19,987 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 01:16:19,988 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 01:16:19,988 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1769190351] [2023-08-25 01:16:19,988 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1769190351] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 01:16:19,988 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 01:16:19,988 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 01:16:19,988 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1875686565] [2023-08-25 01:16:19,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 01:16:19,988 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-25 01:16:19,988 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 01:16:19,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-25 01:16:19,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-25 01:16:19,989 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 216 [2023-08-25 01:16:19,989 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 20 transitions, 94 flow. Second operand has 4 states, 4 states have (on average 74.75) internal successors, (299), 4 states have internal predecessors, (299), 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 01:16:19,990 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 01:16:19,990 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 216 [2023-08-25 01:16:19,990 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 01:16:20,051 INFO L124 PetriNetUnfolderBase]: 232/439 cut-off events. [2023-08-25 01:16:20,051 INFO L125 PetriNetUnfolderBase]: For 1043/1043 co-relation queries the response was YES. [2023-08-25 01:16:20,052 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1267 conditions, 439 events. 232/439 cut-off events. For 1043/1043 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 1899 event pairs, 51 based on Foata normal form. 22/461 useless extension candidates. Maximal degree in co-relation 1257. Up to 272 conditions per place. [2023-08-25 01:16:20,053 INFO L140 encePairwiseOnDemand]: 210/216 looper letters, 29 selfloop transitions, 4 changer transitions 24/57 dead transitions. [2023-08-25 01:16:20,053 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 57 transitions, 361 flow [2023-08-25 01:16:20,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-25 01:16:20,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-25 01:16:20,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 407 transitions. [2023-08-25 01:16:20,054 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3768518518518518 [2023-08-25 01:16:20,054 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 407 transitions. [2023-08-25 01:16:20,054 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 407 transitions. [2023-08-25 01:16:20,055 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 01:16:20,055 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 407 transitions. [2023-08-25 01:16:20,055 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 81.4) internal successors, (407), 5 states have internal predecessors, (407), 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 01:16:20,057 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 216.0) internal successors, (1296), 6 states have internal predecessors, (1296), 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 01:16:20,057 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 216.0) internal successors, (1296), 6 states have internal predecessors, (1296), 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 01:16:20,057 INFO L175 Difference]: Start difference. First operand has 37 places, 20 transitions, 94 flow. Second operand 5 states and 407 transitions. [2023-08-25 01:16:20,057 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 57 transitions, 361 flow [2023-08-25 01:16:20,058 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 57 transitions, 339 flow, removed 6 selfloop flow, removed 3 redundant places. [2023-08-25 01:16:20,059 INFO L231 Difference]: Finished difference. Result has 39 places, 23 transitions, 121 flow [2023-08-25 01:16:20,059 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=216, PETRI_DIFFERENCE_MINUEND_FLOW=85, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=121, PETRI_PLACES=39, PETRI_TRANSITIONS=23} [2023-08-25 01:16:20,060 INFO L281 CegarLoopForPetriNet]: 47 programPoint places, -8 predicate places. [2023-08-25 01:16:20,060 INFO L495 AbstractCegarLoop]: Abstraction has has 39 places, 23 transitions, 121 flow [2023-08-25 01:16:20,060 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 74.75) internal successors, (299), 4 states have internal predecessors, (299), 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 01:16:20,060 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 01:16:20,060 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 01:16:20,060 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-25 01:16:20,060 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2023-08-25 01:16:20,060 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 01:16:20,061 INFO L85 PathProgramCache]: Analyzing trace with hash -1290342465, now seen corresponding path program 1 times [2023-08-25 01:16:20,061 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 01:16:20,061 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1199931325] [2023-08-25 01:16:20,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 01:16:20,061 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 01:16:20,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 01:16:20,136 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 01:16:20,136 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 01:16:20,136 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1199931325] [2023-08-25 01:16:20,137 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1199931325] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 01:16:20,137 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 01:16:20,137 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-25 01:16:20,137 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1437653204] [2023-08-25 01:16:20,137 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 01:16:20,137 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-25 01:16:20,137 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 01:16:20,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-25 01:16:20,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-08-25 01:16:20,138 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 216 [2023-08-25 01:16:20,139 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 23 transitions, 121 flow. Second operand has 5 states, 5 states have (on average 74.4) internal successors, (372), 5 states have internal predecessors, (372), 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 01:16:20,139 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 01:16:20,139 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 216 [2023-08-25 01:16:20,139 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 01:16:20,207 INFO L124 PetriNetUnfolderBase]: 148/301 cut-off events. [2023-08-25 01:16:20,208 INFO L125 PetriNetUnfolderBase]: For 595/595 co-relation queries the response was YES. [2023-08-25 01:16:20,208 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1118 conditions, 301 events. 148/301 cut-off events. For 595/595 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 1204 event pairs, 24 based on Foata normal form. 17/318 useless extension candidates. Maximal degree in co-relation 1107. Up to 155 conditions per place. [2023-08-25 01:16:20,209 INFO L140 encePairwiseOnDemand]: 210/216 looper letters, 34 selfloop transitions, 7 changer transitions 20/61 dead transitions. [2023-08-25 01:16:20,209 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 61 transitions, 423 flow [2023-08-25 01:16:20,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 01:16:20,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 01:16:20,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 487 transitions. [2023-08-25 01:16:20,211 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3757716049382716 [2023-08-25 01:16:20,211 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 487 transitions. [2023-08-25 01:16:20,211 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 487 transitions. [2023-08-25 01:16:20,211 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 01:16:20,211 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 487 transitions. [2023-08-25 01:16:20,212 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 81.16666666666667) internal successors, (487), 6 states have internal predecessors, (487), 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 01:16:20,213 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 216.0) internal successors, (1512), 7 states have internal predecessors, (1512), 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 01:16:20,214 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 216.0) internal successors, (1512), 7 states have internal predecessors, (1512), 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 01:16:20,214 INFO L175 Difference]: Start difference. First operand has 39 places, 23 transitions, 121 flow. Second operand 6 states and 487 transitions. [2023-08-25 01:16:20,214 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 61 transitions, 423 flow [2023-08-25 01:16:20,215 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 61 transitions, 417 flow, removed 1 selfloop flow, removed 2 redundant places. [2023-08-25 01:16:20,216 INFO L231 Difference]: Finished difference. Result has 43 places, 26 transitions, 171 flow [2023-08-25 01:16:20,216 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=216, PETRI_DIFFERENCE_MINUEND_FLOW=115, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=171, PETRI_PLACES=43, PETRI_TRANSITIONS=26} [2023-08-25 01:16:20,217 INFO L281 CegarLoopForPetriNet]: 47 programPoint places, -4 predicate places. [2023-08-25 01:16:20,217 INFO L495 AbstractCegarLoop]: Abstraction has has 43 places, 26 transitions, 171 flow [2023-08-25 01:16:20,217 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 74.4) internal successors, (372), 5 states have internal predecessors, (372), 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 01:16:20,217 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 01:16:20,217 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 01:16:20,217 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-25 01:16:20,217 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2023-08-25 01:16:20,218 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 01:16:20,218 INFO L85 PathProgramCache]: Analyzing trace with hash -768564222, now seen corresponding path program 1 times [2023-08-25 01:16:20,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 01:16:20,218 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1717163866] [2023-08-25 01:16:20,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 01:16:20,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 01:16:20,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 01:16:20,245 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 01:16:20,245 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 01:16:20,245 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1717163866] [2023-08-25 01:16:20,245 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1717163866] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 01:16:20,245 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 01:16:20,245 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 01:16:20,245 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [454177247] [2023-08-25 01:16:20,245 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 01:16:20,246 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 01:16:20,246 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 01:16:20,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 01:16:20,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 01:16:20,247 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 216 [2023-08-25 01:16:20,247 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 26 transitions, 171 flow. Second operand has 3 states, 3 states have (on average 78.33333333333333) internal successors, (235), 3 states have internal predecessors, (235), 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 01:16:20,247 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 01:16:20,247 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 216 [2023-08-25 01:16:20,247 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 01:16:20,283 INFO L124 PetriNetUnfolderBase]: 115/245 cut-off events. [2023-08-25 01:16:20,283 INFO L125 PetriNetUnfolderBase]: For 674/674 co-relation queries the response was YES. [2023-08-25 01:16:20,283 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1051 conditions, 245 events. 115/245 cut-off events. For 674/674 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 893 event pairs, 61 based on Foata normal form. 6/251 useless extension candidates. Maximal degree in co-relation 1038. Up to 177 conditions per place. [2023-08-25 01:16:20,284 INFO L140 encePairwiseOnDemand]: 213/216 looper letters, 27 selfloop transitions, 3 changer transitions 7/37 dead transitions. [2023-08-25 01:16:20,284 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 37 transitions, 335 flow [2023-08-25 01:16:20,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 01:16:20,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 01:16:20,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 245 transitions. [2023-08-25 01:16:20,285 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.37808641975308643 [2023-08-25 01:16:20,285 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 245 transitions. [2023-08-25 01:16:20,285 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 245 transitions. [2023-08-25 01:16:20,285 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 01:16:20,286 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 245 transitions. [2023-08-25 01:16:20,286 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 81.66666666666667) internal successors, (245), 3 states have internal predecessors, (245), 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 01:16:20,287 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 216.0) internal successors, (864), 4 states have internal predecessors, (864), 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 01:16:20,287 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 216.0) internal successors, (864), 4 states have internal predecessors, (864), 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 01:16:20,287 INFO L175 Difference]: Start difference. First operand has 43 places, 26 transitions, 171 flow. Second operand 3 states and 245 transitions. [2023-08-25 01:16:20,287 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 37 transitions, 335 flow [2023-08-25 01:16:20,288 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 37 transitions, 281 flow, removed 20 selfloop flow, removed 4 redundant places. [2023-08-25 01:16:20,289 INFO L231 Difference]: Finished difference. Result has 40 places, 25 transitions, 144 flow [2023-08-25 01:16:20,289 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=216, PETRI_DIFFERENCE_MINUEND_FLOW=141, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=144, PETRI_PLACES=40, PETRI_TRANSITIONS=25} [2023-08-25 01:16:20,289 INFO L281 CegarLoopForPetriNet]: 47 programPoint places, -7 predicate places. [2023-08-25 01:16:20,290 INFO L495 AbstractCegarLoop]: Abstraction has has 40 places, 25 transitions, 144 flow [2023-08-25 01:16:20,290 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 78.33333333333333) internal successors, (235), 3 states have internal predecessors, (235), 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 01:16:20,290 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 01:16:20,290 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 01:16:20,290 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-25 01:16:20,290 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2023-08-25 01:16:20,290 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 01:16:20,290 INFO L85 PathProgramCache]: Analyzing trace with hash -669081763, now seen corresponding path program 1 times [2023-08-25 01:16:20,291 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 01:16:20,291 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1496636213] [2023-08-25 01:16:20,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 01:16:20,291 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 01:16:20,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 01:16:20,389 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 01:16:20,389 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 01:16:20,389 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1496636213] [2023-08-25 01:16:20,389 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1496636213] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 01:16:20,389 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 01:16:20,389 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-25 01:16:20,389 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [580484411] [2023-08-25 01:16:20,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 01:16:20,390 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-25 01:16:20,390 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 01:16:20,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-25 01:16:20,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-08-25 01:16:20,391 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 216 [2023-08-25 01:16:20,391 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 25 transitions, 144 flow. Second operand has 6 states, 6 states have (on average 74.33333333333333) internal successors, (446), 6 states have internal predecessors, (446), 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 01:16:20,391 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 01:16:20,391 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 216 [2023-08-25 01:16:20,391 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 01:16:20,446 INFO L124 PetriNetUnfolderBase]: 106/233 cut-off events. [2023-08-25 01:16:20,446 INFO L125 PetriNetUnfolderBase]: For 354/354 co-relation queries the response was YES. [2023-08-25 01:16:20,446 INFO L83 FinitePrefix]: Finished finitePrefix Result has 868 conditions, 233 events. 106/233 cut-off events. For 354/354 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 909 event pairs, 21 based on Foata normal form. 2/235 useless extension candidates. Maximal degree in co-relation 856. Up to 87 conditions per place. [2023-08-25 01:16:20,446 INFO L140 encePairwiseOnDemand]: 210/216 looper letters, 0 selfloop transitions, 0 changer transitions 48/48 dead transitions. [2023-08-25 01:16:20,447 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 48 transitions, 359 flow [2023-08-25 01:16:20,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-25 01:16:20,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-25 01:16:20,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 547 transitions. [2023-08-25 01:16:20,448 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.36177248677248675 [2023-08-25 01:16:20,448 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 547 transitions. [2023-08-25 01:16:20,448 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 547 transitions. [2023-08-25 01:16:20,448 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 01:16:20,448 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 547 transitions. [2023-08-25 01:16:20,449 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 78.14285714285714) internal successors, (547), 7 states have internal predecessors, (547), 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 01:16:20,451 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 216.0) internal successors, (1728), 8 states have internal predecessors, (1728), 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 01:16:20,451 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 216.0) internal successors, (1728), 8 states have internal predecessors, (1728), 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 01:16:20,451 INFO L175 Difference]: Start difference. First operand has 40 places, 25 transitions, 144 flow. Second operand 7 states and 547 transitions. [2023-08-25 01:16:20,451 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 48 transitions, 359 flow [2023-08-25 01:16:20,452 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 48 transitions, 318 flow, removed 8 selfloop flow, removed 4 redundant places. [2023-08-25 01:16:20,452 INFO L231 Difference]: Finished difference. Result has 41 places, 0 transitions, 0 flow [2023-08-25 01:16:20,452 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=216, PETRI_DIFFERENCE_MINUEND_FLOW=116, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=0, PETRI_PLACES=41, PETRI_TRANSITIONS=0} [2023-08-25 01:16:20,453 INFO L281 CegarLoopForPetriNet]: 47 programPoint places, -6 predicate places. [2023-08-25 01:16:20,453 INFO L495 AbstractCegarLoop]: Abstraction has has 41 places, 0 transitions, 0 flow [2023-08-25 01:16:20,453 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 74.33333333333333) internal successors, (446), 6 states have internal predecessors, (446), 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 01:16:20,455 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONDATA_RACE (35 of 36 remaining) [2023-08-25 01:16:20,455 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONDATA_RACE (34 of 36 remaining) [2023-08-25 01:16:20,455 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err2ASSERT_VIOLATIONDATA_RACE (33 of 36 remaining) [2023-08-25 01:16:20,455 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err3ASSERT_VIOLATIONDATA_RACE (32 of 36 remaining) [2023-08-25 01:16:20,456 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONDATA_RACE (31 of 36 remaining) [2023-08-25 01:16:20,456 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONDATA_RACE (30 of 36 remaining) [2023-08-25 01:16:20,456 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err2ASSERT_VIOLATIONDATA_RACE (29 of 36 remaining) [2023-08-25 01:16:20,456 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONDATA_RACE (28 of 36 remaining) [2023-08-25 01:16:20,456 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONDATA_RACE (27 of 36 remaining) [2023-08-25 01:16:20,456 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err2ASSERT_VIOLATIONDATA_RACE (26 of 36 remaining) [2023-08-25 01:16:20,456 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err3ASSERT_VIOLATIONDATA_RACE (25 of 36 remaining) [2023-08-25 01:16:20,456 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err4ASSERT_VIOLATIONDATA_RACE (24 of 36 remaining) [2023-08-25 01:16:20,456 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (23 of 36 remaining) [2023-08-25 01:16:20,456 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (22 of 36 remaining) [2023-08-25 01:16:20,457 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (21 of 36 remaining) [2023-08-25 01:16:20,457 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (20 of 36 remaining) [2023-08-25 01:16:20,457 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (19 of 36 remaining) [2023-08-25 01:16:20,457 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (18 of 36 remaining) [2023-08-25 01:16:20,457 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (17 of 36 remaining) [2023-08-25 01:16:20,457 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (16 of 36 remaining) [2023-08-25 01:16:20,457 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONASSERT (15 of 36 remaining) [2023-08-25 01:16:20,457 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (14 of 36 remaining) [2023-08-25 01:16:20,457 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (13 of 36 remaining) [2023-08-25 01:16:20,457 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (12 of 36 remaining) [2023-08-25 01:16:20,457 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONDATA_RACE (11 of 36 remaining) [2023-08-25 01:16:20,457 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONDATA_RACE (10 of 36 remaining) [2023-08-25 01:16:20,458 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err2ASSERT_VIOLATIONDATA_RACE (9 of 36 remaining) [2023-08-25 01:16:20,458 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err3ASSERT_VIOLATIONDATA_RACE (8 of 36 remaining) [2023-08-25 01:16:20,458 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONDATA_RACE (7 of 36 remaining) [2023-08-25 01:16:20,458 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONDATA_RACE (6 of 36 remaining) [2023-08-25 01:16:20,458 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err2ASSERT_VIOLATIONDATA_RACE (5 of 36 remaining) [2023-08-25 01:16:20,458 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONDATA_RACE (4 of 36 remaining) [2023-08-25 01:16:20,458 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONDATA_RACE (3 of 36 remaining) [2023-08-25 01:16:20,458 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err2ASSERT_VIOLATIONDATA_RACE (2 of 36 remaining) [2023-08-25 01:16:20,458 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err3ASSERT_VIOLATIONDATA_RACE (1 of 36 remaining) [2023-08-25 01:16:20,458 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err4ASSERT_VIOLATIONDATA_RACE (0 of 36 remaining) [2023-08-25 01:16:20,458 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-25 01:16:20,459 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 01:16:20,462 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-25 01:16:20,462 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-25 01:16:20,464 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.08 01:16:20 BasicIcfg [2023-08-25 01:16:20,464 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-25 01:16:20,464 INFO L158 Benchmark]: Toolchain (without parser) took 5848.15ms. Allocated memory was 402.7MB in the beginning and 520.1MB in the end (delta: 117.4MB). Free memory was 358.9MB in the beginning and 451.7MB in the end (delta: -92.8MB). Peak memory consumption was 25.7MB. Max. memory is 16.0GB. [2023-08-25 01:16:20,464 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 402.7MB. Free memory is still 379.4MB. There was no memory consumed. Max. memory is 16.0GB. [2023-08-25 01:16:20,464 INFO L158 Benchmark]: CACSL2BoogieTranslator took 381.87ms. Allocated memory is still 402.7MB. Free memory was 358.5MB in the beginning and 338.1MB in the end (delta: 20.4MB). Peak memory consumption was 21.0MB. Max. memory is 16.0GB. [2023-08-25 01:16:20,465 INFO L158 Benchmark]: Boogie Procedure Inliner took 45.16ms. Allocated memory is still 402.7MB. Free memory was 338.1MB in the beginning and 336.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-25 01:16:20,465 INFO L158 Benchmark]: Boogie Preprocessor took 49.14ms. Allocated memory is still 402.7MB. Free memory was 336.0MB in the beginning and 381.0MB in the end (delta: -45.0MB). Peak memory consumption was 6.9MB. Max. memory is 16.0GB. [2023-08-25 01:16:20,465 INFO L158 Benchmark]: RCFGBuilder took 566.77ms. Allocated memory is still 402.7MB. Free memory was 381.0MB in the beginning and 352.3MB in the end (delta: 28.7MB). Peak memory consumption was 29.4MB. Max. memory is 16.0GB. [2023-08-25 01:16:20,465 INFO L158 Benchmark]: TraceAbstraction took 4799.50ms. Allocated memory was 402.7MB in the beginning and 520.1MB in the end (delta: 117.4MB). Free memory was 351.5MB in the beginning and 451.7MB in the end (delta: -100.2MB). Peak memory consumption was 16.7MB. Max. memory is 16.0GB. [2023-08-25 01:16:20,466 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 402.7MB. Free memory is still 379.4MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 381.87ms. Allocated memory is still 402.7MB. Free memory was 358.5MB in the beginning and 338.1MB in the end (delta: 20.4MB). Peak memory consumption was 21.0MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 45.16ms. Allocated memory is still 402.7MB. Free memory was 338.1MB in the beginning and 336.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 49.14ms. Allocated memory is still 402.7MB. Free memory was 336.0MB in the beginning and 381.0MB in the end (delta: -45.0MB). Peak memory consumption was 6.9MB. Max. memory is 16.0GB. * RCFGBuilder took 566.77ms. Allocated memory is still 402.7MB. Free memory was 381.0MB in the beginning and 352.3MB in the end (delta: 28.7MB). Peak memory consumption was 29.4MB. Max. memory is 16.0GB. * TraceAbstraction took 4799.50ms. Allocated memory was 402.7MB in the beginning and 520.1MB in the end (delta: 117.4MB). Free memory was 351.5MB in the beginning and 451.7MB in the end (delta: -100.2MB). Peak memory consumption was 16.7MB. 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: 3.1s, 114 PlacesBefore, 47 PlacesAfterwards, 107 TransitionsBefore, 37 TransitionsAfterwards, 3500 CoEnabledTransitionPairs, 8 FixpointIterations, 18 TrivialSequentialCompositions, 71 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 14 ConcurrentYvCompositions, 3 ChoiceCompositions, 106 TotalNumberOfCompositions, 13309 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 5317, independent: 5005, independent conditional: 0, independent unconditional: 5005, dependent: 312, dependent conditional: 0, dependent unconditional: 312, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1948, independent: 1876, independent conditional: 0, independent unconditional: 1876, dependent: 72, dependent conditional: 0, dependent unconditional: 72, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 5317, independent: 3129, independent conditional: 0, independent unconditional: 3129, dependent: 240, dependent conditional: 0, dependent unconditional: 240, unknown: 1948, unknown conditional: 0, unknown unconditional: 1948] , Statistics on independence cache: Total cache size (in pairs): 252, Positive cache size: 221, Positive conditional cache size: 0, Positive unconditional cache size: 221, Negative cache size: 31, Negative conditional cache size: 0, Negative unconditional cache size: 31, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 721]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 724]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 729]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 729]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 736]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 741]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 741]: 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: 751]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 756]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 756]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 778]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 778]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 780]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 784]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 784]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 784]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 784]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 786]: 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, 143 locations, 36 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: 4.7s, OverallIterations: 9, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 126 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 126 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 8 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 439 IncrementalHoareTripleChecker+Invalid, 447 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 8 mSolverCounterUnsat, 0 mSDtfsCounter, 439 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 25 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=171occurred in iteration=7, InterpolantAutomatonStates: 38, 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, 0.5s InterpolantComputationTime, 91 NumberOfCodeBlocks, 91 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 82 ConstructedInterpolants, 0 QuantifiedInterpolants, 226 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 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 21 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-25 01:16:20,489 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...