/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/mix021_power.oepc_pso.oepc_rmo.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-wip.dk.fix-rcfgbuilder-lbe-0ccecc1-m [2023-11-10 11:39:37,155 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-10 11:39:37,215 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-NoLbe.epf [2023-11-10 11:39:37,233 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-10 11:39:37,233 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-10 11:39:37,234 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-10 11:39:37,234 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-10 11:39:37,234 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-10 11:39:37,235 INFO L153 SettingsManager]: * Use SBE=true [2023-11-10 11:39:37,237 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-10 11:39:37,238 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-10 11:39:37,238 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-10 11:39:37,238 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-10 11:39:37,239 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-10 11:39:37,239 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-10 11:39:37,239 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-10 11:39:37,240 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-10 11:39:37,240 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-10 11:39:37,240 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-10 11:39:37,240 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-10 11:39:37,240 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-10 11:39:37,241 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-10 11:39:37,241 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-10 11:39:37,241 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-11-10 11:39:37,241 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-10 11:39:37,242 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-10 11:39:37,242 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-10 11:39:37,242 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-10 11:39:37,242 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-10 11:39:37,242 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-10 11:39:37,243 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-10 11:39:37,243 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-10 11:39:37,243 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-10 11:39:37,243 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-11-10 11:39:37,425 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-10 11:39:37,437 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-10 11:39:37,439 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-10 11:39:37,439 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-10 11:39:37,441 INFO L274 PluginConnector]: CDTParser initialized [2023-11-10 11:39:37,442 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/mix021_power.oepc_pso.oepc_rmo.oepc.i [2023-11-10 11:39:38,413 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-10 11:39:38,616 INFO L384 CDTParser]: Found 1 translation units. [2023-11-10 11:39:38,617 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix021_power.oepc_pso.oepc_rmo.oepc.i [2023-11-10 11:39:38,638 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/83d39b6b6/1c2078ab8a70490c93ba184868969b9b/FLAG2aea4962a [2023-11-10 11:39:38,648 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/83d39b6b6/1c2078ab8a70490c93ba184868969b9b [2023-11-10 11:39:38,650 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-10 11:39:38,651 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-11-10 11:39:38,652 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-10 11:39:38,652 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-10 11:39:38,655 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-10 11:39:38,655 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 11:39:38" (1/1) ... [2023-11-10 11:39:38,656 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a15a8a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:39:38, skipping insertion in model container [2023-11-10 11:39:38,656 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 11:39:38" (1/1) ... [2023-11-10 11:39:38,702 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-10 11:39:38,833 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix021_power.oepc_pso.oepc_rmo.oepc.i[969,982] [2023-11-10 11:39:39,022 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-10 11:39:39,035 INFO L202 MainTranslator]: Completed pre-run [2023-11-10 11:39:39,045 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix021_power.oepc_pso.oepc_rmo.oepc.i[969,982] [2023-11-10 11:39:39,100 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-10 11:39:39,127 WARN L672 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-10 11:39:39,128 WARN L672 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-10 11:39:39,133 INFO L206 MainTranslator]: Completed translation [2023-11-10 11:39:39,133 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:39:39 WrapperNode [2023-11-10 11:39:39,133 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-10 11:39:39,134 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-10 11:39:39,134 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-10 11:39:39,135 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-10 11:39:39,139 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:39:39" (1/1) ... [2023-11-10 11:39:39,167 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:39:39" (1/1) ... [2023-11-10 11:39:39,204 INFO L138 Inliner]: procedures = 177, calls = 69, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 143 [2023-11-10 11:39:39,204 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-10 11:39:39,205 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-10 11:39:39,205 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-10 11:39:39,205 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-10 11:39:39,211 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:39:39" (1/1) ... [2023-11-10 11:39:39,211 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:39:39" (1/1) ... [2023-11-10 11:39:39,214 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:39:39" (1/1) ... [2023-11-10 11:39:39,214 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:39:39" (1/1) ... [2023-11-10 11:39:39,221 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:39:39" (1/1) ... [2023-11-10 11:39:39,223 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:39:39" (1/1) ... [2023-11-10 11:39:39,225 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:39:39" (1/1) ... [2023-11-10 11:39:39,233 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:39:39" (1/1) ... [2023-11-10 11:39:39,236 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-10 11:39:39,237 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-10 11:39:39,237 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-10 11:39:39,237 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-10 11:39:39,238 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:39:39" (1/1) ... [2023-11-10 11:39:39,241 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-10 11:39:39,248 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-10 11:39:39,264 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) [2023-11-10 11:39:39,280 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 [2023-11-10 11:39:39,290 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-10 11:39:39,290 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-10 11:39:39,290 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-10 11:39:39,290 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-10 11:39:39,291 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-10 11:39:39,291 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-11-10 11:39:39,291 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-11-10 11:39:39,291 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-11-10 11:39:39,291 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-11-10 11:39:39,291 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-11-10 11:39:39,291 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-11-10 11:39:39,291 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2023-11-10 11:39:39,291 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2023-11-10 11:39:39,291 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-10 11:39:39,292 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-10 11:39:39,292 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-10 11:39:39,292 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-10 11:39:39,293 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-10 11:39:39,401 INFO L236 CfgBuilder]: Building ICFG [2023-11-10 11:39:39,402 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-10 11:39:39,619 INFO L277 CfgBuilder]: Performing block encoding [2023-11-10 11:39:39,724 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-10 11:39:39,724 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-10 11:39:39,728 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 11:39:39 BoogieIcfgContainer [2023-11-10 11:39:39,728 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-10 11:39:39,730 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-10 11:39:39,730 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-10 11:39:39,733 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-10 11:39:39,733 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 11:39:38" (1/3) ... [2023-11-10 11:39:39,734 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@167afc8c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 11:39:39, skipping insertion in model container [2023-11-10 11:39:39,734 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:39:39" (2/3) ... [2023-11-10 11:39:39,734 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@167afc8c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 11:39:39, skipping insertion in model container [2023-11-10 11:39:39,734 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 11:39:39" (3/3) ... [2023-11-10 11:39:39,735 INFO L112 eAbstractionObserver]: Analyzing ICFG mix021_power.oepc_pso.oepc_rmo.oepc.i [2023-11-10 11:39:39,747 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-10 11:39:39,748 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-11-10 11:39:39,748 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-10 11:39:39,800 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-10 11:39:39,830 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 144 places, 134 transitions, 284 flow [2023-11-10 11:39:39,887 INFO L124 PetriNetUnfolderBase]: 3/130 cut-off events. [2023-11-10 11:39:39,888 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-10 11:39:39,893 INFO L83 FinitePrefix]: Finished finitePrefix Result has 143 conditions, 130 events. 3/130 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 73 event pairs, 0 based on Foata normal form. 0/125 useless extension candidates. Maximal degree in co-relation 93. Up to 2 conditions per place. [2023-11-10 11:39:39,893 INFO L82 GeneralOperation]: Start removeDead. Operand has 144 places, 134 transitions, 284 flow [2023-11-10 11:39:39,896 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 140 places, 130 transitions, 272 flow [2023-11-10 11:39:39,903 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-10 11:39:39,907 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=LoopHeads, 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;@244d08a7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-10 11:39:39,907 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2023-11-10 11:39:39,916 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-10 11:39:39,916 INFO L124 PetriNetUnfolderBase]: 1/48 cut-off events. [2023-11-10 11:39:39,916 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-10 11:39:39,916 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-10 11:39:39,917 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-10 11:39:39,917 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-10 11:39:39,920 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-10 11:39:39,920 INFO L85 PathProgramCache]: Analyzing trace with hash 809078218, now seen corresponding path program 1 times [2023-11-10 11:39:39,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-10 11:39:39,927 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1465185776] [2023-11-10 11:39:39,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-10 11:39:39,927 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-10 11:39:40,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-10 11:39:40,247 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-10 11:39:40,248 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-10 11:39:40,248 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1465185776] [2023-11-10 11:39:40,248 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1465185776] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-10 11:39:40,248 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-10 11:39:40,249 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-10 11:39:40,250 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1925472236] [2023-11-10 11:39:40,250 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-10 11:39:40,255 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-10 11:39:40,259 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-10 11:39:40,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-10 11:39:40,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-10 11:39:40,277 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 134 [2023-11-10 11:39:40,279 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 140 places, 130 transitions, 272 flow. Second operand has 3 states, 3 states have (on average 118.0) internal successors, (354), 3 states have internal predecessors, (354), 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) [2023-11-10 11:39:40,279 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-10 11:39:40,279 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 134 [2023-11-10 11:39:40,280 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-10 11:39:40,466 INFO L124 PetriNetUnfolderBase]: 162/616 cut-off events. [2023-11-10 11:39:40,467 INFO L125 PetriNetUnfolderBase]: For 22/22 co-relation queries the response was YES. [2023-11-10 11:39:40,473 INFO L83 FinitePrefix]: Finished finitePrefix Result has 922 conditions, 616 events. 162/616 cut-off events. For 22/22 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 3407 event pairs, 132 based on Foata normal form. 50/624 useless extension candidates. Maximal degree in co-relation 869. Up to 191 conditions per place. [2023-11-10 11:39:40,478 INFO L140 encePairwiseOnDemand]: 128/134 looper letters, 18 selfloop transitions, 2 changer transitions 0/133 dead transitions. [2023-11-10 11:39:40,478 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 140 places, 133 transitions, 327 flow [2023-11-10 11:39:40,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-10 11:39:40,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-10 11:39:40,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 377 transitions. [2023-11-10 11:39:40,492 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9378109452736318 [2023-11-10 11:39:40,493 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 377 transitions. [2023-11-10 11:39:40,493 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 377 transitions. [2023-11-10 11:39:40,496 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-10 11:39:40,498 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 377 transitions. [2023-11-10 11:39:40,502 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 125.66666666666667) internal successors, (377), 3 states have internal predecessors, (377), 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) [2023-11-10 11:39:40,506 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 134.0) internal successors, (536), 4 states have internal predecessors, (536), 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) [2023-11-10 11:39:40,506 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 134.0) internal successors, (536), 4 states have internal predecessors, (536), 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) [2023-11-10 11:39:40,508 INFO L175 Difference]: Start difference. First operand has 140 places, 130 transitions, 272 flow. Second operand 3 states and 377 transitions. [2023-11-10 11:39:40,508 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 140 places, 133 transitions, 327 flow [2023-11-10 11:39:40,513 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 136 places, 133 transitions, 320 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-11-10 11:39:40,516 INFO L231 Difference]: Finished difference. Result has 136 places, 125 transitions, 262 flow [2023-11-10 11:39:40,517 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=134, PETRI_DIFFERENCE_MINUEND_FLOW=258, PETRI_DIFFERENCE_MINUEND_PLACES=134, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=125, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=123, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=262, PETRI_PLACES=136, PETRI_TRANSITIONS=125} [2023-11-10 11:39:40,522 INFO L281 CegarLoopForPetriNet]: 140 programPoint places, -4 predicate places. [2023-11-10 11:39:40,522 INFO L495 AbstractCegarLoop]: Abstraction has has 136 places, 125 transitions, 262 flow [2023-11-10 11:39:40,523 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 118.0) internal successors, (354), 3 states have internal predecessors, (354), 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) [2023-11-10 11:39:40,523 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-10 11:39:40,523 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-10 11:39:40,524 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-10 11:39:40,524 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-10 11:39:40,525 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-10 11:39:40,525 INFO L85 PathProgramCache]: Analyzing trace with hash 369065926, now seen corresponding path program 1 times [2023-11-10 11:39:40,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-10 11:39:40,525 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [887855882] [2023-11-10 11:39:40,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-10 11:39:40,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-10 11:39:40,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-10 11:39:40,921 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-10 11:39:40,921 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-10 11:39:40,922 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [887855882] [2023-11-10 11:39:40,922 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [887855882] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-10 11:39:40,922 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-10 11:39:40,922 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-10 11:39:40,922 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1196152419] [2023-11-10 11:39:40,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-10 11:39:40,924 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-10 11:39:40,924 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-10 11:39:40,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-10 11:39:40,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-11-10 11:39:40,926 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 98 out of 134 [2023-11-10 11:39:40,927 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 136 places, 125 transitions, 262 flow. Second operand has 7 states, 7 states have (on average 100.28571428571429) internal successors, (702), 7 states have internal predecessors, (702), 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) [2023-11-10 11:39:40,927 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-10 11:39:40,927 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 98 of 134 [2023-11-10 11:39:40,927 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-10 11:39:44,389 INFO L124 PetriNetUnfolderBase]: 17560/32107 cut-off events. [2023-11-10 11:39:44,390 INFO L125 PetriNetUnfolderBase]: For 1389/1389 co-relation queries the response was YES. [2023-11-10 11:39:44,456 INFO L83 FinitePrefix]: Finished finitePrefix Result has 57608 conditions, 32107 events. 17560/32107 cut-off events. For 1389/1389 co-relation queries the response was YES. Maximal size of possible extension queue 1292. Compared 285460 event pairs, 1620 based on Foata normal form. 0/31585 useless extension candidates. Maximal degree in co-relation 57552. Up to 7938 conditions per place. [2023-11-10 11:39:44,517 INFO L140 encePairwiseOnDemand]: 120/134 looper letters, 46 selfloop transitions, 8 changer transitions 134/270 dead transitions. [2023-11-10 11:39:44,517 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 148 places, 270 transitions, 926 flow [2023-11-10 11:39:44,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-10 11:39:44,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-11-10 11:39:44,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1453 transitions. [2023-11-10 11:39:44,520 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8340987370838117 [2023-11-10 11:39:44,520 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1453 transitions. [2023-11-10 11:39:44,520 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1453 transitions. [2023-11-10 11:39:44,521 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-10 11:39:44,521 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1453 transitions. [2023-11-10 11:39:44,523 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 111.76923076923077) internal successors, (1453), 13 states have internal predecessors, (1453), 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) [2023-11-10 11:39:44,527 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 134.0) internal successors, (1876), 14 states have internal predecessors, (1876), 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) [2023-11-10 11:39:44,528 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 134.0) internal successors, (1876), 14 states have internal predecessors, (1876), 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) [2023-11-10 11:39:44,528 INFO L175 Difference]: Start difference. First operand has 136 places, 125 transitions, 262 flow. Second operand 13 states and 1453 transitions. [2023-11-10 11:39:44,528 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 148 places, 270 transitions, 926 flow [2023-11-10 11:39:44,530 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 146 places, 270 transitions, 900 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-10 11:39:44,532 INFO L231 Difference]: Finished difference. Result has 158 places, 116 transitions, 342 flow [2023-11-10 11:39:44,533 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=134, PETRI_DIFFERENCE_MINUEND_FLOW=258, PETRI_DIFFERENCE_MINUEND_PLACES=134, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=125, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=117, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=342, PETRI_PLACES=158, PETRI_TRANSITIONS=116} [2023-11-10 11:39:44,533 INFO L281 CegarLoopForPetriNet]: 140 programPoint places, 18 predicate places. [2023-11-10 11:39:44,533 INFO L495 AbstractCegarLoop]: Abstraction has has 158 places, 116 transitions, 342 flow [2023-11-10 11:39:44,534 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 100.28571428571429) internal successors, (702), 7 states have internal predecessors, (702), 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) [2023-11-10 11:39:44,534 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-10 11:39:44,534 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-10 11:39:44,534 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-10 11:39:44,534 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-10 11:39:44,535 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-10 11:39:44,535 INFO L85 PathProgramCache]: Analyzing trace with hash -1885889727, now seen corresponding path program 1 times [2023-11-10 11:39:44,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-10 11:39:44,535 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [129474112] [2023-11-10 11:39:44,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-10 11:39:44,535 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-10 11:39:44,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-10 11:39:44,876 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-10 11:39:44,878 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-10 11:39:44,881 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [129474112] [2023-11-10 11:39:44,882 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [129474112] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-10 11:39:44,882 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-10 11:39:44,882 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-10 11:39:44,882 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2029243489] [2023-11-10 11:39:44,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-10 11:39:44,883 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-10 11:39:44,883 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-10 11:39:44,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-10 11:39:44,884 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-11-10 11:39:44,885 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 98 out of 134 [2023-11-10 11:39:44,885 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 158 places, 116 transitions, 342 flow. Second operand has 7 states, 7 states have (on average 100.42857142857143) internal successors, (703), 7 states have internal predecessors, (703), 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) [2023-11-10 11:39:44,885 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-10 11:39:44,885 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 98 of 134 [2023-11-10 11:39:44,886 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-10 11:39:46,957 INFO L124 PetriNetUnfolderBase]: 9662/16832 cut-off events. [2023-11-10 11:39:46,957 INFO L125 PetriNetUnfolderBase]: For 32211/32211 co-relation queries the response was YES. [2023-11-10 11:39:47,010 INFO L83 FinitePrefix]: Finished finitePrefix Result has 52014 conditions, 16832 events. 9662/16832 cut-off events. For 32211/32211 co-relation queries the response was YES. Maximal size of possible extension queue 861. Compared 135854 event pairs, 855 based on Foata normal form. 326/16940 useless extension candidates. Maximal degree in co-relation 51946. Up to 5235 conditions per place. [2023-11-10 11:39:47,057 INFO L140 encePairwiseOnDemand]: 120/134 looper letters, 48 selfloop transitions, 18 changer transitions 100/248 dead transitions. [2023-11-10 11:39:47,057 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 146 places, 248 transitions, 1422 flow [2023-11-10 11:39:47,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-10 11:39:47,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-11-10 11:39:47,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1437 transitions. [2023-11-10 11:39:47,060 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8249138920780712 [2023-11-10 11:39:47,060 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1437 transitions. [2023-11-10 11:39:47,060 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1437 transitions. [2023-11-10 11:39:47,061 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-10 11:39:47,061 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1437 transitions. [2023-11-10 11:39:47,063 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 110.53846153846153) internal successors, (1437), 13 states have internal predecessors, (1437), 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) [2023-11-10 11:39:47,066 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 134.0) internal successors, (1876), 14 states have internal predecessors, (1876), 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) [2023-11-10 11:39:47,067 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 134.0) internal successors, (1876), 14 states have internal predecessors, (1876), 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) [2023-11-10 11:39:47,067 INFO L175 Difference]: Start difference. First operand has 158 places, 116 transitions, 342 flow. Second operand 13 states and 1437 transitions. [2023-11-10 11:39:47,067 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 146 places, 248 transitions, 1422 flow [2023-11-10 11:39:47,162 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 142 places, 248 transitions, 1394 flow, removed 12 selfloop flow, removed 4 redundant places. [2023-11-10 11:39:47,165 INFO L231 Difference]: Finished difference. Result has 154 places, 125 transitions, 519 flow [2023-11-10 11:39:47,166 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=134, PETRI_DIFFERENCE_MINUEND_FLOW=334, PETRI_DIFFERENCE_MINUEND_PLACES=130, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=116, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=101, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=519, PETRI_PLACES=154, PETRI_TRANSITIONS=125} [2023-11-10 11:39:47,167 INFO L281 CegarLoopForPetriNet]: 140 programPoint places, 14 predicate places. [2023-11-10 11:39:47,167 INFO L495 AbstractCegarLoop]: Abstraction has has 154 places, 125 transitions, 519 flow [2023-11-10 11:39:47,167 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 100.42857142857143) internal successors, (703), 7 states have internal predecessors, (703), 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) [2023-11-10 11:39:47,167 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-10 11:39:47,167 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-10 11:39:47,168 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-10 11:39:47,168 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-10 11:39:47,168 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-10 11:39:47,168 INFO L85 PathProgramCache]: Analyzing trace with hash 2062564206, now seen corresponding path program 1 times [2023-11-10 11:39:47,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-10 11:39:47,169 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [74127458] [2023-11-10 11:39:47,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-10 11:39:47,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-10 11:39:47,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-10 11:39:47,384 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-10 11:39:47,384 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-10 11:39:47,385 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [74127458] [2023-11-10 11:39:47,385 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [74127458] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-10 11:39:47,385 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-10 11:39:47,385 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-10 11:39:47,385 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1078343229] [2023-11-10 11:39:47,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-10 11:39:47,385 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-10 11:39:47,386 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-10 11:39:47,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-10 11:39:47,386 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-10 11:39:47,386 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 134 [2023-11-10 11:39:47,387 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 154 places, 125 transitions, 519 flow. Second operand has 6 states, 6 states have (on average 108.0) internal successors, (648), 6 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) [2023-11-10 11:39:47,387 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-10 11:39:47,387 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 134 [2023-11-10 11:39:47,387 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-10 11:39:49,227 INFO L124 PetriNetUnfolderBase]: 7104/12842 cut-off events. [2023-11-10 11:39:49,227 INFO L125 PetriNetUnfolderBase]: For 49993/50506 co-relation queries the response was YES. [2023-11-10 11:39:49,267 INFO L83 FinitePrefix]: Finished finitePrefix Result has 45298 conditions, 12842 events. 7104/12842 cut-off events. For 49993/50506 co-relation queries the response was YES. Maximal size of possible extension queue 781. Compared 105044 event pairs, 1999 based on Foata normal form. 542/13048 useless extension candidates. Maximal degree in co-relation 45220. Up to 5800 conditions per place. [2023-11-10 11:39:49,322 INFO L140 encePairwiseOnDemand]: 127/134 looper letters, 32 selfloop transitions, 7 changer transitions 67/206 dead transitions. [2023-11-10 11:39:49,323 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 153 places, 206 transitions, 1331 flow [2023-11-10 11:39:49,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-10 11:39:49,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-11-10 11:39:49,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1034 transitions. [2023-11-10 11:39:49,325 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.857379767827529 [2023-11-10 11:39:49,325 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1034 transitions. [2023-11-10 11:39:49,325 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1034 transitions. [2023-11-10 11:39:49,325 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-10 11:39:49,325 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1034 transitions. [2023-11-10 11:39:49,327 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 114.88888888888889) internal successors, (1034), 9 states have internal predecessors, (1034), 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) [2023-11-10 11:39:49,328 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 134.0) internal successors, (1340), 10 states have internal predecessors, (1340), 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) [2023-11-10 11:39:49,329 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 134.0) internal successors, (1340), 10 states have internal predecessors, (1340), 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) [2023-11-10 11:39:49,329 INFO L175 Difference]: Start difference. First operand has 154 places, 125 transitions, 519 flow. Second operand 9 states and 1034 transitions. [2023-11-10 11:39:49,329 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 153 places, 206 transitions, 1331 flow [2023-11-10 11:39:49,535 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 144 places, 206 transitions, 1283 flow, removed 24 selfloop flow, removed 9 redundant places. [2023-11-10 11:39:49,537 INFO L231 Difference]: Finished difference. Result has 151 places, 131 transitions, 638 flow [2023-11-10 11:39:49,537 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=134, PETRI_DIFFERENCE_MINUEND_FLOW=495, PETRI_DIFFERENCE_MINUEND_PLACES=136, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=125, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=118, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=638, PETRI_PLACES=151, PETRI_TRANSITIONS=131} [2023-11-10 11:39:49,538 INFO L281 CegarLoopForPetriNet]: 140 programPoint places, 11 predicate places. [2023-11-10 11:39:49,538 INFO L495 AbstractCegarLoop]: Abstraction has has 151 places, 131 transitions, 638 flow [2023-11-10 11:39:49,538 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 108.0) internal successors, (648), 6 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) [2023-11-10 11:39:49,538 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-10 11:39:49,538 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-10 11:39:49,538 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-10 11:39:49,539 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-10 11:39:49,539 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-10 11:39:49,539 INFO L85 PathProgramCache]: Analyzing trace with hash -896534156, now seen corresponding path program 1 times [2023-11-10 11:39:49,539 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-10 11:39:49,539 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [788030408] [2023-11-10 11:39:49,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-10 11:39:49,539 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-10 11:39:49,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-10 11:39:49,685 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-10 11:39:49,685 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-10 11:39:49,685 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [788030408] [2023-11-10 11:39:49,686 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [788030408] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-10 11:39:49,686 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-10 11:39:49,686 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-10 11:39:49,686 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1323825338] [2023-11-10 11:39:49,686 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-10 11:39:49,687 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-10 11:39:49,687 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-10 11:39:49,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-10 11:39:49,688 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-11-10 11:39:49,688 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 98 out of 134 [2023-11-10 11:39:49,689 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 151 places, 131 transitions, 638 flow. Second operand has 7 states, 7 states have (on average 100.71428571428571) internal successors, (705), 7 states have internal predecessors, (705), 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) [2023-11-10 11:39:49,689 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-10 11:39:49,689 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 98 of 134 [2023-11-10 11:39:49,689 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-10 11:39:52,044 INFO L124 PetriNetUnfolderBase]: 9343/17096 cut-off events. [2023-11-10 11:39:52,045 INFO L125 PetriNetUnfolderBase]: For 63544/63690 co-relation queries the response was YES. [2023-11-10 11:39:52,094 INFO L83 FinitePrefix]: Finished finitePrefix Result has 59721 conditions, 17096 events. 9343/17096 cut-off events. For 63544/63690 co-relation queries the response was YES. Maximal size of possible extension queue 822. Compared 143606 event pairs, 1600 based on Foata normal form. 290/16750 useless extension candidates. Maximal degree in co-relation 59639. Up to 4348 conditions per place. [2023-11-10 11:39:52,141 INFO L140 encePairwiseOnDemand]: 120/134 looper letters, 56 selfloop transitions, 26 changer transitions 92/256 dead transitions. [2023-11-10 11:39:52,141 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 157 places, 256 transitions, 1816 flow [2023-11-10 11:39:52,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-10 11:39:52,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-11-10 11:39:52,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1420 transitions. [2023-11-10 11:39:52,144 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8151549942594719 [2023-11-10 11:39:52,144 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1420 transitions. [2023-11-10 11:39:52,144 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1420 transitions. [2023-11-10 11:39:52,145 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-10 11:39:52,145 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1420 transitions. [2023-11-10 11:39:52,147 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 109.23076923076923) internal successors, (1420), 13 states have internal predecessors, (1420), 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) [2023-11-10 11:39:52,148 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 134.0) internal successors, (1876), 14 states have internal predecessors, (1876), 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) [2023-11-10 11:39:52,149 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 134.0) internal successors, (1876), 14 states have internal predecessors, (1876), 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) [2023-11-10 11:39:52,149 INFO L175 Difference]: Start difference. First operand has 151 places, 131 transitions, 638 flow. Second operand 13 states and 1420 transitions. [2023-11-10 11:39:52,149 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 157 places, 256 transitions, 1816 flow [2023-11-10 11:39:52,232 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 153 places, 256 transitions, 1762 flow, removed 23 selfloop flow, removed 4 redundant places. [2023-11-10 11:39:52,235 INFO L231 Difference]: Finished difference. Result has 165 places, 138 transitions, 845 flow [2023-11-10 11:39:52,235 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=134, PETRI_DIFFERENCE_MINUEND_FLOW=621, PETRI_DIFFERENCE_MINUEND_PLACES=141, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=131, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=105, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=845, PETRI_PLACES=165, PETRI_TRANSITIONS=138} [2023-11-10 11:39:52,235 INFO L281 CegarLoopForPetriNet]: 140 programPoint places, 25 predicate places. [2023-11-10 11:39:52,236 INFO L495 AbstractCegarLoop]: Abstraction has has 165 places, 138 transitions, 845 flow [2023-11-10 11:39:52,236 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 100.71428571428571) internal successors, (705), 7 states have internal predecessors, (705), 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) [2023-11-10 11:39:52,236 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-10 11:39:52,236 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-10 11:39:52,236 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-10 11:39:52,236 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-10 11:39:52,236 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-10 11:39:52,237 INFO L85 PathProgramCache]: Analyzing trace with hash 1117827679, now seen corresponding path program 1 times [2023-11-10 11:39:52,237 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-10 11:39:52,237 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1450909339] [2023-11-10 11:39:52,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-10 11:39:52,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-10 11:39:52,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-10 11:39:52,400 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-10 11:39:52,400 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-10 11:39:52,400 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1450909339] [2023-11-10 11:39:52,400 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1450909339] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-10 11:39:52,400 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-10 11:39:52,400 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-10 11:39:52,400 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1626065723] [2023-11-10 11:39:52,400 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-10 11:39:52,401 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-10 11:39:52,402 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-10 11:39:52,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-10 11:39:52,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-10 11:39:52,403 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 134 [2023-11-10 11:39:52,404 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 165 places, 138 transitions, 845 flow. Second operand has 6 states, 6 states have (on average 106.33333333333333) internal successors, (638), 6 states have internal predecessors, (638), 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) [2023-11-10 11:39:52,404 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-10 11:39:52,404 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 134 [2023-11-10 11:39:52,404 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-10 11:39:58,823 INFO L124 PetriNetUnfolderBase]: 32516/54546 cut-off events. [2023-11-10 11:39:58,823 INFO L125 PetriNetUnfolderBase]: For 116591/125917 co-relation queries the response was YES. [2023-11-10 11:39:59,135 INFO L83 FinitePrefix]: Finished finitePrefix Result has 138626 conditions, 54546 events. 32516/54546 cut-off events. For 116591/125917 co-relation queries the response was YES. Maximal size of possible extension queue 3012. Compared 499975 event pairs, 3506 based on Foata normal form. 580/52803 useless extension candidates. Maximal degree in co-relation 138534. Up to 20889 conditions per place. [2023-11-10 11:39:59,266 INFO L140 encePairwiseOnDemand]: 123/134 looper letters, 103 selfloop transitions, 20 changer transitions 0/234 dead transitions. [2023-11-10 11:39:59,266 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 165 places, 234 transitions, 1541 flow [2023-11-10 11:39:59,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-10 11:39:59,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-11-10 11:39:59,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1149 transitions. [2023-11-10 11:39:59,269 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8574626865671642 [2023-11-10 11:39:59,269 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1149 transitions. [2023-11-10 11:39:59,269 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1149 transitions. [2023-11-10 11:39:59,269 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-10 11:39:59,269 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1149 transitions. [2023-11-10 11:39:59,271 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 114.9) internal successors, (1149), 10 states have internal predecessors, (1149), 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) [2023-11-10 11:39:59,273 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 134.0) internal successors, (1474), 11 states have internal predecessors, (1474), 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) [2023-11-10 11:39:59,273 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 134.0) internal successors, (1474), 11 states have internal predecessors, (1474), 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) [2023-11-10 11:39:59,273 INFO L175 Difference]: Start difference. First operand has 165 places, 138 transitions, 845 flow. Second operand 10 states and 1149 transitions. [2023-11-10 11:39:59,273 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 165 places, 234 transitions, 1541 flow [2023-11-10 11:39:59,349 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 162 places, 234 transitions, 1517 flow, removed 12 selfloop flow, removed 3 redundant places. [2023-11-10 11:39:59,352 INFO L231 Difference]: Finished difference. Result has 168 places, 156 transitions, 964 flow [2023-11-10 11:39:59,352 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=134, PETRI_DIFFERENCE_MINUEND_FLOW=821, PETRI_DIFFERENCE_MINUEND_PLACES=153, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=138, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=128, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=964, PETRI_PLACES=168, PETRI_TRANSITIONS=156} [2023-11-10 11:39:59,355 INFO L281 CegarLoopForPetriNet]: 140 programPoint places, 28 predicate places. [2023-11-10 11:39:59,355 INFO L495 AbstractCegarLoop]: Abstraction has has 168 places, 156 transitions, 964 flow [2023-11-10 11:39:59,355 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 106.33333333333333) internal successors, (638), 6 states have internal predecessors, (638), 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) [2023-11-10 11:39:59,355 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-10 11:39:59,355 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-10 11:39:59,356 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-10 11:39:59,356 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-10 11:39:59,356 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-10 11:39:59,356 INFO L85 PathProgramCache]: Analyzing trace with hash 170958859, now seen corresponding path program 1 times [2023-11-10 11:39:59,356 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-10 11:39:59,356 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1528667250] [2023-11-10 11:39:59,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-10 11:39:59,356 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-10 11:39:59,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-10 11:39:59,537 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-10 11:39:59,537 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-10 11:39:59,537 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1528667250] [2023-11-10 11:39:59,537 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1528667250] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-10 11:39:59,537 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-10 11:39:59,537 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-10 11:39:59,540 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1223886171] [2023-11-10 11:39:59,540 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-10 11:39:59,541 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-10 11:39:59,541 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-10 11:39:59,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-10 11:39:59,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-11-10 11:39:59,542 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 98 out of 134 [2023-11-10 11:39:59,543 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 168 places, 156 transitions, 964 flow. Second operand has 7 states, 7 states have (on average 101.0) internal successors, (707), 7 states have internal predecessors, (707), 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) [2023-11-10 11:39:59,544 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-10 11:39:59,544 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 98 of 134 [2023-11-10 11:39:59,544 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-10 11:40:03,862 INFO L124 PetriNetUnfolderBase]: 11801/30957 cut-off events. [2023-11-10 11:40:03,862 INFO L125 PetriNetUnfolderBase]: For 113688/118362 co-relation queries the response was YES. [2023-11-10 11:40:04,066 INFO L83 FinitePrefix]: Finished finitePrefix Result has 101158 conditions, 30957 events. 11801/30957 cut-off events. For 113688/118362 co-relation queries the response was YES. Maximal size of possible extension queue 1993. Compared 386860 event pairs, 3257 based on Foata normal form. 570/29601 useless extension candidates. Maximal degree in co-relation 101056. Up to 5701 conditions per place. [2023-11-10 11:40:04,376 INFO L140 encePairwiseOnDemand]: 120/134 looper letters, 128 selfloop transitions, 43 changer transitions 0/271 dead transitions. [2023-11-10 11:40:04,376 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 180 places, 271 transitions, 2282 flow [2023-11-10 11:40:04,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-10 11:40:04,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-11-10 11:40:04,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1414 transitions. [2023-11-10 11:40:04,380 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8117106773823192 [2023-11-10 11:40:04,380 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1414 transitions. [2023-11-10 11:40:04,380 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1414 transitions. [2023-11-10 11:40:04,381 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-10 11:40:04,381 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1414 transitions. [2023-11-10 11:40:04,383 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 108.76923076923077) internal successors, (1414), 13 states have internal predecessors, (1414), 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) [2023-11-10 11:40:04,385 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 134.0) internal successors, (1876), 14 states have internal predecessors, (1876), 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) [2023-11-10 11:40:04,385 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 134.0) internal successors, (1876), 14 states have internal predecessors, (1876), 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) [2023-11-10 11:40:04,385 INFO L175 Difference]: Start difference. First operand has 168 places, 156 transitions, 964 flow. Second operand 13 states and 1414 transitions. [2023-11-10 11:40:04,385 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 180 places, 271 transitions, 2282 flow [2023-11-10 11:40:04,645 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 178 places, 271 transitions, 2231 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-10 11:40:04,647 INFO L231 Difference]: Finished difference. Result has 190 places, 182 transitions, 1557 flow [2023-11-10 11:40:04,648 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=134, PETRI_DIFFERENCE_MINUEND_FLOW=938, PETRI_DIFFERENCE_MINUEND_PLACES=166, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=156, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=129, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=1557, PETRI_PLACES=190, PETRI_TRANSITIONS=182} [2023-11-10 11:40:04,648 INFO L281 CegarLoopForPetriNet]: 140 programPoint places, 50 predicate places. [2023-11-10 11:40:04,648 INFO L495 AbstractCegarLoop]: Abstraction has has 190 places, 182 transitions, 1557 flow [2023-11-10 11:40:04,649 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 101.0) internal successors, (707), 7 states have internal predecessors, (707), 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) [2023-11-10 11:40:04,649 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-10 11:40:04,649 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-10 11:40:04,649 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-10 11:40:04,649 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-10 11:40:04,649 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-10 11:40:04,649 INFO L85 PathProgramCache]: Analyzing trace with hash 1651499608, now seen corresponding path program 1 times [2023-11-10 11:40:04,649 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-10 11:40:04,649 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [170151518] [2023-11-10 11:40:04,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-10 11:40:04,650 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-10 11:40:04,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-10 11:40:04,778 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-10 11:40:04,779 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-10 11:40:04,779 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [170151518] [2023-11-10 11:40:04,779 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [170151518] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-10 11:40:04,779 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-10 11:40:04,779 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-10 11:40:04,779 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [895080778] [2023-11-10 11:40:04,779 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-10 11:40:04,779 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-10 11:40:04,780 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-10 11:40:04,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-10 11:40:04,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-11-10 11:40:04,780 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 134 [2023-11-10 11:40:04,781 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 190 places, 182 transitions, 1557 flow. Second operand has 7 states, 7 states have (on average 106.28571428571429) internal successors, (744), 7 states have internal predecessors, (744), 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) [2023-11-10 11:40:04,781 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-10 11:40:04,781 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 134 [2023-11-10 11:40:04,781 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-10 11:40:14,836 INFO L124 PetriNetUnfolderBase]: 40925/72206 cut-off events. [2023-11-10 11:40:14,836 INFO L125 PetriNetUnfolderBase]: For 245810/256588 co-relation queries the response was YES. [2023-11-10 11:40:15,443 INFO L83 FinitePrefix]: Finished finitePrefix Result has 241873 conditions, 72206 events. 40925/72206 cut-off events. For 245810/256588 co-relation queries the response was YES. Maximal size of possible extension queue 4231. Compared 735562 event pairs, 1686 based on Foata normal form. 1575/72143 useless extension candidates. Maximal degree in co-relation 241760. Up to 16017 conditions per place. [2023-11-10 11:40:15,545 INFO L140 encePairwiseOnDemand]: 123/134 looper letters, 134 selfloop transitions, 38 changer transitions 17/319 dead transitions. [2023-11-10 11:40:15,545 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 202 places, 319 transitions, 3019 flow [2023-11-10 11:40:15,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-10 11:40:15,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-11-10 11:40:15,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1498 transitions. [2023-11-10 11:40:15,548 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8599311136624569 [2023-11-10 11:40:15,548 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1498 transitions. [2023-11-10 11:40:15,548 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1498 transitions. [2023-11-10 11:40:15,548 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-10 11:40:15,548 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1498 transitions. [2023-11-10 11:40:15,551 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 115.23076923076923) internal successors, (1498), 13 states have internal predecessors, (1498), 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) [2023-11-10 11:40:15,553 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 134.0) internal successors, (1876), 14 states have internal predecessors, (1876), 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) [2023-11-10 11:40:15,553 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 134.0) internal successors, (1876), 14 states have internal predecessors, (1876), 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) [2023-11-10 11:40:15,553 INFO L175 Difference]: Start difference. First operand has 190 places, 182 transitions, 1557 flow. Second operand 13 states and 1498 transitions. [2023-11-10 11:40:15,553 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 202 places, 319 transitions, 3019 flow [2023-11-10 11:40:18,805 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 202 places, 319 transitions, 2889 flow, removed 65 selfloop flow, removed 0 redundant places. [2023-11-10 11:40:18,808 INFO L231 Difference]: Finished difference. Result has 208 places, 195 transitions, 1617 flow [2023-11-10 11:40:18,808 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=134, PETRI_DIFFERENCE_MINUEND_FLOW=1427, PETRI_DIFFERENCE_MINUEND_PLACES=190, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=182, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=156, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=1617, PETRI_PLACES=208, PETRI_TRANSITIONS=195} [2023-11-10 11:40:18,809 INFO L281 CegarLoopForPetriNet]: 140 programPoint places, 68 predicate places. [2023-11-10 11:40:18,809 INFO L495 AbstractCegarLoop]: Abstraction has has 208 places, 195 transitions, 1617 flow [2023-11-10 11:40:18,809 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 106.28571428571429) internal successors, (744), 7 states have internal predecessors, (744), 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) [2023-11-10 11:40:18,809 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-10 11:40:18,809 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-10 11:40:18,809 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-10 11:40:18,809 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-10 11:40:18,809 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-10 11:40:18,810 INFO L85 PathProgramCache]: Analyzing trace with hash -1184338538, now seen corresponding path program 1 times [2023-11-10 11:40:18,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-10 11:40:18,810 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1049436925] [2023-11-10 11:40:18,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-10 11:40:18,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-10 11:40:18,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-10 11:40:19,036 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-10 11:40:19,036 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-10 11:40:19,036 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1049436925] [2023-11-10 11:40:19,037 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1049436925] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-10 11:40:19,037 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-10 11:40:19,037 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-10 11:40:19,037 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [205147222] [2023-11-10 11:40:19,037 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-10 11:40:19,037 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-10 11:40:19,037 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-10 11:40:19,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-10 11:40:19,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-10 11:40:19,038 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 96 out of 134 [2023-11-10 11:40:19,039 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 208 places, 195 transitions, 1617 flow. Second operand has 7 states, 7 states have (on average 99.57142857142857) internal successors, (697), 7 states have internal predecessors, (697), 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) [2023-11-10 11:40:19,039 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-10 11:40:19,039 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 96 of 134 [2023-11-10 11:40:19,039 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-10 11:40:24,057 INFO L124 PetriNetUnfolderBase]: 11438/35164 cut-off events. [2023-11-10 11:40:24,058 INFO L125 PetriNetUnfolderBase]: For 184465/213637 co-relation queries the response was YES. [2023-11-10 11:40:24,370 INFO L83 FinitePrefix]: Finished finitePrefix Result has 135854 conditions, 35164 events. 11438/35164 cut-off events. For 184465/213637 co-relation queries the response was YES. Maximal size of possible extension queue 3917. Compared 504028 event pairs, 770 based on Foata normal form. 673/33549 useless extension candidates. Maximal degree in co-relation 135727. Up to 8559 conditions per place. [2023-11-10 11:40:24,492 INFO L140 encePairwiseOnDemand]: 119/134 looper letters, 122 selfloop transitions, 75 changer transitions 33/348 dead transitions. [2023-11-10 11:40:24,492 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 218 places, 348 transitions, 3901 flow [2023-11-10 11:40:24,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-10 11:40:24,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-11-10 11:40:24,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1189 transitions. [2023-11-10 11:40:24,495 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8066485753052918 [2023-11-10 11:40:24,495 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1189 transitions. [2023-11-10 11:40:24,495 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1189 transitions. [2023-11-10 11:40:24,496 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-10 11:40:24,496 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1189 transitions. [2023-11-10 11:40:24,497 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 108.0909090909091) internal successors, (1189), 11 states have internal predecessors, (1189), 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) [2023-11-10 11:40:24,499 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 134.0) internal successors, (1608), 12 states have internal predecessors, (1608), 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) [2023-11-10 11:40:24,499 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 134.0) internal successors, (1608), 12 states have internal predecessors, (1608), 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) [2023-11-10 11:40:24,500 INFO L175 Difference]: Start difference. First operand has 208 places, 195 transitions, 1617 flow. Second operand 11 states and 1189 transitions. [2023-11-10 11:40:24,500 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 218 places, 348 transitions, 3901 flow [2023-11-10 11:40:30,361 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 211 places, 348 transitions, 3780 flow, removed 51 selfloop flow, removed 7 redundant places. [2023-11-10 11:40:30,365 INFO L231 Difference]: Finished difference. Result has 220 places, 247 transitions, 2687 flow [2023-11-10 11:40:30,366 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=134, PETRI_DIFFERENCE_MINUEND_FLOW=1512, PETRI_DIFFERENCE_MINUEND_PLACES=201, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=195, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=32, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=143, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=2687, PETRI_PLACES=220, PETRI_TRANSITIONS=247} [2023-11-10 11:40:30,366 INFO L281 CegarLoopForPetriNet]: 140 programPoint places, 80 predicate places. [2023-11-10 11:40:30,366 INFO L495 AbstractCegarLoop]: Abstraction has has 220 places, 247 transitions, 2687 flow [2023-11-10 11:40:30,367 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 99.57142857142857) internal successors, (697), 7 states have internal predecessors, (697), 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) [2023-11-10 11:40:30,367 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-10 11:40:30,367 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-10 11:40:30,367 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-10 11:40:30,367 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-10 11:40:30,367 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-10 11:40:30,367 INFO L85 PathProgramCache]: Analyzing trace with hash -423537912, now seen corresponding path program 2 times [2023-11-10 11:40:30,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-10 11:40:30,367 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1456450119] [2023-11-10 11:40:30,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-10 11:40:30,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-10 11:40:30,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-10 11:40:30,524 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-10 11:40:30,524 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-10 11:40:30,524 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1456450119] [2023-11-10 11:40:30,527 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1456450119] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-10 11:40:30,528 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-10 11:40:30,528 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-10 11:40:30,528 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1863785015] [2023-11-10 11:40:30,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-10 11:40:30,529 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-10 11:40:30,530 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-10 11:40:30,530 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-10 11:40:30,530 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-11-10 11:40:30,531 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 134 [2023-11-10 11:40:30,532 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 220 places, 247 transitions, 2687 flow. Second operand has 8 states, 8 states have (on average 106.25) internal successors, (850), 8 states have internal predecessors, (850), 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) [2023-11-10 11:40:30,532 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-10 11:40:30,532 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 134 [2023-11-10 11:40:30,532 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand