/root/.sdkman/candidates/java/21.0.5-tem/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf --traceabstraction.positions.where.we.compute.the.hoare.annotation All -i ../../../trunk/examples/svcomp/weaver/parallel-parallel-sum-equiv.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.3.0-wip.dk.empire2-owicki-f61efc6-m [2025-03-14 22:39:57,408 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-14 22:39:57,489 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 [2025-03-14 22:39:57,514 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-14 22:39:57,515 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-14 22:39:57,515 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-14 22:39:57,515 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-14 22:39:57,515 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-14 22:39:57,515 INFO L153 SettingsManager]: * Use SBE=true [2025-03-14 22:39:57,516 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-14 22:39:57,516 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-14 22:39:57,516 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-14 22:39:57,516 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-14 22:39:57,516 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-14 22:39:57,517 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-14 22:39:57,517 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-14 22:39:57,517 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-14 22:39:57,517 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-14 22:39:57,517 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-14 22:39:57,517 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-14 22:39:57,517 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-14 22:39:57,517 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-03-14 22:39:57,517 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-14 22:39:57,517 INFO L153 SettingsManager]: * To the following directory=./dump/ [2025-03-14 22:39:57,518 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-14 22:39:57,518 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2025-03-14 22:39:57,518 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-14 22:39:57,518 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-14 22:39:57,518 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-14 22:39:57,518 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-14 22:39:57,518 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-14 22:39:57,518 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-14 22:39:57,518 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> All [2025-03-14 22:39:57,777 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-14 22:39:57,783 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-14 22:39:57,784 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-14 22:39:57,785 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-14 22:39:57,785 INFO L274 PluginConnector]: CDTParser initialized [2025-03-14 22:39:57,786 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/parallel-parallel-sum-equiv.wvr.c [2025-03-14 22:39:58,915 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/604ef0064/2bab1a46cac14b6a9d8815d9824324f3/FLAG6e152feba [2025-03-14 22:39:59,068 INFO L384 CDTParser]: Found 1 translation units. [2025-03-14 22:39:59,069 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-parallel-sum-equiv.wvr.c [2025-03-14 22:39:59,074 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/604ef0064/2bab1a46cac14b6a9d8815d9824324f3/FLAG6e152feba [2025-03-14 22:39:59,085 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/604ef0064/2bab1a46cac14b6a9d8815d9824324f3 [2025-03-14 22:39:59,086 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-14 22:39:59,087 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2025-03-14 22:39:59,088 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-14 22:39:59,088 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-14 22:39:59,091 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-14 22:39:59,091 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.03 10:39:59" (1/1) ... [2025-03-14 22:39:59,092 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@119613a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 10:39:59, skipping insertion in model container [2025-03-14 22:39:59,092 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.03 10:39:59" (1/1) ... [2025-03-14 22:39:59,103 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-14 22:39:59,214 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-parallel-sum-equiv.wvr.c[3822,3835] [2025-03-14 22:39:59,222 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-14 22:39:59,227 INFO L200 MainTranslator]: Completed pre-run [2025-03-14 22:39:59,245 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-parallel-sum-equiv.wvr.c[3822,3835] [2025-03-14 22:39:59,254 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-14 22:39:59,267 INFO L204 MainTranslator]: Completed translation [2025-03-14 22:39:59,268 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 10:39:59 WrapperNode [2025-03-14 22:39:59,268 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-14 22:39:59,269 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-14 22:39:59,269 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-14 22:39:59,269 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-14 22:39:59,274 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 10:39:59" (1/1) ... [2025-03-14 22:39:59,285 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 10:39:59" (1/1) ... [2025-03-14 22:39:59,309 INFO L138 Inliner]: procedures = 26, calls = 53, calls flagged for inlining = 18, calls inlined = 22, statements flattened = 245 [2025-03-14 22:39:59,309 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-14 22:39:59,312 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-14 22:39:59,312 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-14 22:39:59,312 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-14 22:39:59,317 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 10:39:59" (1/1) ... [2025-03-14 22:39:59,318 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 10:39:59" (1/1) ... [2025-03-14 22:39:59,320 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 10:39:59" (1/1) ... [2025-03-14 22:39:59,321 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 10:39:59" (1/1) ... [2025-03-14 22:39:59,329 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 10:39:59" (1/1) ... [2025-03-14 22:39:59,330 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 10:39:59" (1/1) ... [2025-03-14 22:39:59,337 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 10:39:59" (1/1) ... [2025-03-14 22:39:59,339 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 10:39:59" (1/1) ... [2025-03-14 22:39:59,339 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 10:39:59" (1/1) ... [2025-03-14 22:39:59,345 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-14 22:39:59,346 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-03-14 22:39:59,346 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-03-14 22:39:59,346 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-03-14 22:39:59,347 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 10:39:59" (1/1) ... [2025-03-14 22:39:59,354 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2025-03-14 22:39:59,363 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-14 22:39:59,375 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) [2025-03-14 22:39:59,380 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 [2025-03-14 22:39:59,398 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-14 22:39:59,398 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2025-03-14 22:39:59,398 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2025-03-14 22:39:59,398 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-03-14 22:39:59,398 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-03-14 22:39:59,398 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-03-14 22:39:59,398 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-03-14 22:39:59,398 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2025-03-14 22:39:59,398 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2025-03-14 22:39:59,398 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2025-03-14 22:39:59,398 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2025-03-14 22:39:59,398 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-03-14 22:39:59,398 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2025-03-14 22:39:59,398 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2025-03-14 22:39:59,398 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-03-14 22:39:59,398 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-14 22:39:59,398 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-14 22:39:59,399 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-03-14 22:39:59,490 INFO L234 CfgBuilder]: Building ICFG [2025-03-14 22:39:59,491 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-14 22:39:59,856 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-03-14 22:39:59,857 INFO L283 CfgBuilder]: Performing block encoding [2025-03-14 22:39:59,977 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-14 22:39:59,977 INFO L312 CfgBuilder]: Removed 3 assume(true) statements. [2025-03-14 22:39:59,979 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.03 10:39:59 BoogieIcfgContainer [2025-03-14 22:39:59,979 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-03-14 22:39:59,981 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-14 22:39:59,981 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-14 22:39:59,985 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-14 22:39:59,985 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.03 10:39:59" (1/3) ... [2025-03-14 22:39:59,985 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e9b7751 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.03 10:39:59, skipping insertion in model container [2025-03-14 22:39:59,985 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 10:39:59" (2/3) ... [2025-03-14 22:39:59,986 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e9b7751 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.03 10:39:59, skipping insertion in model container [2025-03-14 22:39:59,986 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.03 10:39:59" (3/3) ... [2025-03-14 22:39:59,986 INFO L128 eAbstractionObserver]: Analyzing ICFG parallel-parallel-sum-equiv.wvr.c [2025-03-14 22:39:59,996 INFO L303 ceAbstractionStarter]: Automizer settings: Hoare:All NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-14 22:39:59,998 INFO L169 ceAbstractionStarter]: Applying trace abstraction to ICFG parallel-parallel-sum-equiv.wvr.c that has 5 procedures, 181 locations, 1 initial locations, 4 loop locations, and 1 error locations. [2025-03-14 22:39:59,998 INFO L581 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-03-14 22:40:00,065 INFO L143 ThreadInstanceAdder]: Constructed 10 joinOtherThreadTransitions. [2025-03-14 22:40:00,098 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-14 22:40:00,109 INFO L333 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, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, 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;@473f9d03, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-14 22:40:00,109 INFO L334 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2025-03-14 22:40:00,181 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-14 22:40:00,181 INFO L124 PetriNetUnfolderBase]: 13/183 cut-off events. [2025-03-14 22:40:00,182 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2025-03-14 22:40:00,182 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-14 22:40:00,183 INFO L221 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-14 22:40:00,183 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err5INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2025-03-14 22:40:00,189 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 22:40:00,189 INFO L85 PathProgramCache]: Analyzing trace with hash -613823447, now seen corresponding path program 1 times [2025-03-14 22:40:00,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 22:40:00,196 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1223198252] [2025-03-14 22:40:00,196 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-14 22:40:00,196 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 22:40:00,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 22:40:00,391 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-14 22:40:00,391 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 22:40:00,391 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1223198252] [2025-03-14 22:40:00,392 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1223198252] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 22:40:00,392 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-14 22:40:00,392 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-14 22:40:00,393 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1106345751] [2025-03-14 22:40:00,394 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 22:40:00,398 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-03-14 22:40:00,401 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 22:40:00,416 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-03-14 22:40:00,417 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-14 22:40:00,419 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 166 out of 199 [2025-03-14 22:40:00,423 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 197 places, 197 transitions, 434 flow. Second operand has 2 states, 2 states have (on average 174.0) internal successors, (348), 2 states have internal predecessors, (348), 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) [2025-03-14 22:40:00,423 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 22:40:00,423 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 166 of 199 [2025-03-14 22:40:00,424 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 22:40:00,672 INFO L124 PetriNetUnfolderBase]: 266/921 cut-off events. [2025-03-14 22:40:00,672 INFO L125 PetriNetUnfolderBase]: For 107/107 co-relation queries the response was YES. [2025-03-14 22:40:00,680 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1445 conditions, 921 events. 266/921 cut-off events. For 107/107 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 5009 event pairs, 141 based on Foata normal form. 99/916 useless extension candidates. Maximal degree in co-relation 1305. Up to 386 conditions per place. [2025-03-14 22:40:00,687 INFO L140 encePairwiseOnDemand]: 191/199 looper letters, 21 selfloop transitions, 0 changer transitions 4/177 dead transitions. [2025-03-14 22:40:00,687 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 185 places, 177 transitions, 426 flow [2025-03-14 22:40:00,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-14 22:40:00,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2025-03-14 22:40:00,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 361 transitions. [2025-03-14 22:40:00,698 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.907035175879397 [2025-03-14 22:40:00,700 INFO L298 CegarLoopForPetriNet]: 197 programPoint places, -12 predicate places. [2025-03-14 22:40:00,700 INFO L471 AbstractCegarLoop]: Abstraction has has 185 places, 177 transitions, 426 flow [2025-03-14 22:40:00,701 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 174.0) internal successors, (348), 2 states have internal predecessors, (348), 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) [2025-03-14 22:40:00,701 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-14 22:40:00,702 INFO L221 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-14 22:40:00,702 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-14 22:40:00,702 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err5INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2025-03-14 22:40:00,703 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 22:40:00,703 INFO L85 PathProgramCache]: Analyzing trace with hash -844038982, now seen corresponding path program 1 times [2025-03-14 22:40:00,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 22:40:00,704 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [283864657] [2025-03-14 22:40:00,704 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-14 22:40:00,704 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 22:40:00,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 22:40:01,047 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-14 22:40:01,047 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 22:40:01,048 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [283864657] [2025-03-14 22:40:01,048 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [283864657] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 22:40:01,048 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-14 22:40:01,048 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-14 22:40:01,048 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [294858805] [2025-03-14 22:40:01,048 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 22:40:01,049 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-14 22:40:01,049 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 22:40:01,049 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-14 22:40:01,049 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-14 22:40:01,052 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 134 out of 199 [2025-03-14 22:40:01,053 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 185 places, 177 transitions, 426 flow. Second operand has 6 states, 6 states have (on average 140.83333333333334) internal successors, (845), 6 states have internal predecessors, (845), 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) [2025-03-14 22:40:01,053 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 22:40:01,053 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 134 of 199 [2025-03-14 22:40:01,053 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 22:40:01,538 INFO L124 PetriNetUnfolderBase]: 578/1801 cut-off events. [2025-03-14 22:40:01,538 INFO L125 PetriNetUnfolderBase]: For 583/761 co-relation queries the response was YES. [2025-03-14 22:40:01,543 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3774 conditions, 1801 events. 578/1801 cut-off events. For 583/761 co-relation queries the response was YES. Maximal size of possible extension queue 97. Compared 12579 event pairs, 207 based on Foata normal form. 0/1603 useless extension candidates. Maximal degree in co-relation 3510. Up to 838 conditions per place. [2025-03-14 22:40:01,552 INFO L140 encePairwiseOnDemand]: 185/199 looper letters, 81 selfloop transitions, 8 changer transitions 10/223 dead transitions. [2025-03-14 22:40:01,552 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 192 places, 223 transitions, 834 flow [2025-03-14 22:40:01,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-14 22:40:01,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2025-03-14 22:40:01,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1172 transitions. [2025-03-14 22:40:01,556 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.7361809045226131 [2025-03-14 22:40:01,558 INFO L298 CegarLoopForPetriNet]: 197 programPoint places, -5 predicate places. [2025-03-14 22:40:01,558 INFO L471 AbstractCegarLoop]: Abstraction has has 192 places, 223 transitions, 834 flow [2025-03-14 22:40:01,559 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 140.83333333333334) internal successors, (845), 6 states have internal predecessors, (845), 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) [2025-03-14 22:40:01,559 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-14 22:40:01,559 INFO L221 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-14 22:40:01,559 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-14 22:40:01,559 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err5INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2025-03-14 22:40:01,560 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 22:40:01,560 INFO L85 PathProgramCache]: Analyzing trace with hash 1359663234, now seen corresponding path program 2 times [2025-03-14 22:40:01,560 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 22:40:01,561 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1409967324] [2025-03-14 22:40:01,561 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-14 22:40:01,561 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 22:40:01,596 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-14 22:40:01,597 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2025-03-14 22:40:01,748 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-14 22:40:01,748 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 22:40:01,748 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1409967324] [2025-03-14 22:40:01,748 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1409967324] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 22:40:01,748 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-14 22:40:01,748 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-14 22:40:01,749 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1858050362] [2025-03-14 22:40:01,749 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 22:40:01,749 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-14 22:40:01,749 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 22:40:01,750 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-14 22:40:01,750 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-14 22:40:01,752 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 134 out of 199 [2025-03-14 22:40:01,753 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 192 places, 223 transitions, 834 flow. Second operand has 6 states, 6 states have (on average 140.83333333333334) internal successors, (845), 6 states have internal predecessors, (845), 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) [2025-03-14 22:40:01,753 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 22:40:01,753 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 134 of 199 [2025-03-14 22:40:01,753 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 22:40:02,248 INFO L124 PetriNetUnfolderBase]: 879/2478 cut-off events. [2025-03-14 22:40:02,248 INFO L125 PetriNetUnfolderBase]: For 1591/1899 co-relation queries the response was YES. [2025-03-14 22:40:02,254 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6841 conditions, 2478 events. 879/2478 cut-off events. For 1591/1899 co-relation queries the response was YES. Maximal size of possible extension queue 143. Compared 18608 event pairs, 179 based on Foata normal form. 16/2260 useless extension candidates. Maximal degree in co-relation 6394. Up to 1280 conditions per place. [2025-03-14 22:40:02,266 INFO L140 encePairwiseOnDemand]: 184/199 looper letters, 115 selfloop transitions, 13 changer transitions 16/268 dead transitions. [2025-03-14 22:40:02,266 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 199 places, 268 transitions, 1415 flow [2025-03-14 22:40:02,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-14 22:40:02,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2025-03-14 22:40:02,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1172 transitions. [2025-03-14 22:40:02,269 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.7361809045226131 [2025-03-14 22:40:02,270 INFO L298 CegarLoopForPetriNet]: 197 programPoint places, 2 predicate places. [2025-03-14 22:40:02,270 INFO L471 AbstractCegarLoop]: Abstraction has has 199 places, 268 transitions, 1415 flow [2025-03-14 22:40:02,274 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 140.83333333333334) internal successors, (845), 6 states have internal predecessors, (845), 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) [2025-03-14 22:40:02,274 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-14 22:40:02,274 INFO L221 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-14 22:40:02,274 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-14 22:40:02,274 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err5INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2025-03-14 22:40:02,275 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 22:40:02,275 INFO L85 PathProgramCache]: Analyzing trace with hash 973258760, now seen corresponding path program 1 times [2025-03-14 22:40:02,275 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 22:40:02,275 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [968070090] [2025-03-14 22:40:02,275 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-14 22:40:02,275 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 22:40:02,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 22:40:02,473 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-14 22:40:02,473 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 22:40:02,473 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [968070090] [2025-03-14 22:40:02,474 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [968070090] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 22:40:02,474 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-14 22:40:02,474 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-03-14 22:40:02,474 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [206526667] [2025-03-14 22:40:02,474 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 22:40:02,474 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-14 22:40:02,474 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 22:40:02,475 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-14 22:40:02,475 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2025-03-14 22:40:02,475 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 146 out of 199 [2025-03-14 22:40:02,476 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 199 places, 268 transitions, 1415 flow. Second operand has 7 states, 7 states have (on average 150.42857142857142) internal successors, (1053), 7 states have internal predecessors, (1053), 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) [2025-03-14 22:40:02,478 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 22:40:02,478 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 146 of 199 [2025-03-14 22:40:02,478 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 22:40:03,016 INFO L124 PetriNetUnfolderBase]: 1063/3311 cut-off events. [2025-03-14 22:40:03,016 INFO L125 PetriNetUnfolderBase]: For 4213/4981 co-relation queries the response was YES. [2025-03-14 22:40:03,023 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10441 conditions, 3311 events. 1063/3311 cut-off events. For 4213/4981 co-relation queries the response was YES. Maximal size of possible extension queue 158. Compared 27051 event pairs, 183 based on Foata normal form. 68/3059 useless extension candidates. Maximal degree in co-relation 7674. Up to 1595 conditions per place. [2025-03-14 22:40:03,042 INFO L140 encePairwiseOnDemand]: 188/199 looper letters, 151 selfloop transitions, 12 changer transitions 21/328 dead transitions. [2025-03-14 22:40:03,042 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 208 places, 328 transitions, 2268 flow [2025-03-14 22:40:03,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-14 22:40:03,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2025-03-14 22:40:03,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1533 transitions. [2025-03-14 22:40:03,046 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.7703517587939699 [2025-03-14 22:40:03,048 INFO L298 CegarLoopForPetriNet]: 197 programPoint places, 11 predicate places. [2025-03-14 22:40:03,048 INFO L471 AbstractCegarLoop]: Abstraction has has 208 places, 328 transitions, 2268 flow [2025-03-14 22:40:03,049 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 150.42857142857142) internal successors, (1053), 7 states have internal predecessors, (1053), 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) [2025-03-14 22:40:03,049 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-14 22:40:03,049 INFO L221 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-14 22:40:03,049 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-14 22:40:03,049 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err5INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2025-03-14 22:40:03,050 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 22:40:03,051 INFO L85 PathProgramCache]: Analyzing trace with hash 721201539, now seen corresponding path program 1 times [2025-03-14 22:40:03,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 22:40:03,051 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1569003446] [2025-03-14 22:40:03,051 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-14 22:40:03,051 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 22:40:03,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 22:40:03,211 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-14 22:40:03,211 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 22:40:03,211 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1569003446] [2025-03-14 22:40:03,211 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1569003446] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 22:40:03,211 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-14 22:40:03,211 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-03-14 22:40:03,211 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2035920450] [2025-03-14 22:40:03,211 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 22:40:03,212 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-14 22:40:03,235 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 22:40:03,235 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-14 22:40:03,235 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2025-03-14 22:40:03,236 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 146 out of 199 [2025-03-14 22:40:03,237 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 208 places, 328 transitions, 2268 flow. Second operand has 7 states, 7 states have (on average 150.42857142857142) internal successors, (1053), 7 states have internal predecessors, (1053), 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) [2025-03-14 22:40:03,237 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 22:40:03,237 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 146 of 199 [2025-03-14 22:40:03,237 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 22:40:03,660 INFO L124 PetriNetUnfolderBase]: 956/2923 cut-off events. [2025-03-14 22:40:03,661 INFO L125 PetriNetUnfolderBase]: For 5303/6245 co-relation queries the response was YES. [2025-03-14 22:40:03,666 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10761 conditions, 2923 events. 956/2923 cut-off events. For 5303/6245 co-relation queries the response was YES. Maximal size of possible extension queue 150. Compared 22816 event pairs, 190 based on Foata normal form. 37/2679 useless extension candidates. Maximal degree in co-relation 8872. Up to 1428 conditions per place. [2025-03-14 22:40:03,679 INFO L140 encePairwiseOnDemand]: 189/199 looper letters, 106 selfloop transitions, 6 changer transitions 59/315 dead transitions. [2025-03-14 22:40:03,680 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 217 places, 315 transitions, 2449 flow [2025-03-14 22:40:03,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-14 22:40:03,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2025-03-14 22:40:03,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1535 transitions. [2025-03-14 22:40:03,683 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.7713567839195979 [2025-03-14 22:40:03,683 INFO L298 CegarLoopForPetriNet]: 197 programPoint places, 20 predicate places. [2025-03-14 22:40:03,683 INFO L471 AbstractCegarLoop]: Abstraction has has 217 places, 315 transitions, 2449 flow [2025-03-14 22:40:03,684 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 150.42857142857142) internal successors, (1053), 7 states have internal predecessors, (1053), 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) [2025-03-14 22:40:03,684 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-14 22:40:03,684 INFO L221 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-14 22:40:03,684 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-03-14 22:40:03,684 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err5INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2025-03-14 22:40:03,685 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 22:40:03,685 INFO L85 PathProgramCache]: Analyzing trace with hash 1894000842, now seen corresponding path program 1 times [2025-03-14 22:40:03,685 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 22:40:03,685 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [777863514] [2025-03-14 22:40:03,685 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-14 22:40:03,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 22:40:03,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 22:40:03,888 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-14 22:40:03,888 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 22:40:03,888 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [777863514] [2025-03-14 22:40:03,888 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [777863514] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-14 22:40:03,888 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [744365946] [2025-03-14 22:40:03,889 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-14 22:40:03,889 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-14 22:40:03,889 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-14 22:40:03,891 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-14 22:40:03,893 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-03-14 22:40:04,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 22:40:04,003 INFO L256 TraceCheckSpWp]: Trace formula consists of 363 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-03-14 22:40:04,010 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-14 22:40:04,228 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-14 22:40:04,228 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-14 22:40:04,483 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-14 22:40:04,483 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [744365946] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-14 22:40:04,483 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-14 22:40:04,483 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 19 [2025-03-14 22:40:04,483 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [521633302] [2025-03-14 22:40:04,485 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-14 22:40:04,485 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2025-03-14 22:40:04,486 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 22:40:04,486 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2025-03-14 22:40:04,486 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=259, Unknown=0, NotChecked=0, Total=342 [2025-03-14 22:40:04,488 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 145 out of 199 [2025-03-14 22:40:04,491 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 217 places, 315 transitions, 2449 flow. Second operand has 19 states, 19 states have (on average 148.1578947368421) internal successors, (2815), 19 states have internal predecessors, (2815), 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) [2025-03-14 22:40:04,491 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 22:40:04,491 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 145 of 199 [2025-03-14 22:40:04,491 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 22:40:05,368 INFO L124 PetriNetUnfolderBase]: 1352/4209 cut-off events. [2025-03-14 22:40:05,369 INFO L125 PetriNetUnfolderBase]: For 11659/14013 co-relation queries the response was YES. [2025-03-14 22:40:05,380 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17444 conditions, 4209 events. 1352/4209 cut-off events. For 11659/14013 co-relation queries the response was YES. Maximal size of possible extension queue 191. Compared 36040 event pairs, 210 based on Foata normal form. 127/3934 useless extension candidates. Maximal degree in co-relation 10085. Up to 2033 conditions per place. [2025-03-14 22:40:05,404 INFO L140 encePairwiseOnDemand]: 182/199 looper letters, 221 selfloop transitions, 25 changer transitions 76/465 dead transitions. [2025-03-14 22:40:05,405 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 232 places, 465 transitions, 5023 flow [2025-03-14 22:40:05,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2025-03-14 22:40:05,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2025-03-14 22:40:05,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 2425 transitions. [2025-03-14 22:40:05,409 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.7616206030150754 [2025-03-14 22:40:05,413 INFO L298 CegarLoopForPetriNet]: 197 programPoint places, 35 predicate places. [2025-03-14 22:40:05,413 INFO L471 AbstractCegarLoop]: Abstraction has has 232 places, 465 transitions, 5023 flow [2025-03-14 22:40:05,414 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 148.1578947368421) internal successors, (2815), 19 states have internal predecessors, (2815), 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) [2025-03-14 22:40:05,414 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-14 22:40:05,415 INFO L221 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-14 22:40:05,422 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2025-03-14 22:40:05,615 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2025-03-14 22:40:05,615 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err5INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2025-03-14 22:40:05,616 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 22:40:05,616 INFO L85 PathProgramCache]: Analyzing trace with hash -1185456655, now seen corresponding path program 1 times [2025-03-14 22:40:05,616 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 22:40:05,616 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1675198586] [2025-03-14 22:40:05,616 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-14 22:40:05,616 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 22:40:05,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 22:40:05,781 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-14 22:40:05,781 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 22:40:05,781 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1675198586] [2025-03-14 22:40:05,781 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1675198586] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-14 22:40:05,781 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [17844430] [2025-03-14 22:40:05,781 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-14 22:40:05,781 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-14 22:40:05,781 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-14 22:40:05,784 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-14 22:40:05,785 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-03-14 22:40:05,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 22:40:05,871 INFO L256 TraceCheckSpWp]: Trace formula consists of 363 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-03-14 22:40:05,874 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-14 22:40:06,021 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-14 22:40:06,021 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-14 22:40:06,200 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-14 22:40:06,201 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [17844430] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-14 22:40:06,201 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-14 22:40:06,201 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 19 [2025-03-14 22:40:06,201 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [658593756] [2025-03-14 22:40:06,201 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-14 22:40:06,201 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2025-03-14 22:40:06,203 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 22:40:06,203 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2025-03-14 22:40:06,203 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=259, Unknown=0, NotChecked=0, Total=342 [2025-03-14 22:40:06,204 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 145 out of 199 [2025-03-14 22:40:06,207 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 232 places, 465 transitions, 5023 flow. Second operand has 19 states, 19 states have (on average 148.26315789473685) internal successors, (2817), 19 states have internal predecessors, (2817), 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) [2025-03-14 22:40:06,207 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 22:40:06,207 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 145 of 199 [2025-03-14 22:40:06,207 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 22:40:06,849 INFO L124 PetriNetUnfolderBase]: 952/3102 cut-off events. [2025-03-14 22:40:06,849 INFO L125 PetriNetUnfolderBase]: For 11063/12721 co-relation queries the response was YES. [2025-03-14 22:40:06,854 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14476 conditions, 3102 events. 952/3102 cut-off events. For 11063/12721 co-relation queries the response was YES. Maximal size of possible extension queue 144. Compared 24131 event pairs, 113 based on Foata normal form. 123/2966 useless extension candidates. Maximal degree in co-relation 10565. Up to 1495 conditions per place. [2025-03-14 22:40:06,866 INFO L140 encePairwiseOnDemand]: 180/199 looper letters, 206 selfloop transitions, 34 changer transitions 114/497 dead transitions. [2025-03-14 22:40:06,866 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 247 places, 497 transitions, 6148 flow [2025-03-14 22:40:06,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2025-03-14 22:40:06,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2025-03-14 22:40:06,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 2409 transitions. [2025-03-14 22:40:06,871 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.7565954773869347 [2025-03-14 22:40:06,872 INFO L298 CegarLoopForPetriNet]: 197 programPoint places, 50 predicate places. [2025-03-14 22:40:06,872 INFO L471 AbstractCegarLoop]: Abstraction has has 247 places, 497 transitions, 6148 flow [2025-03-14 22:40:06,873 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 148.26315789473685) internal successors, (2817), 19 states have internal predecessors, (2817), 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) [2025-03-14 22:40:06,873 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-14 22:40:06,873 INFO L221 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-14 22:40:06,880 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-03-14 22:40:07,074 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2025-03-14 22:40:07,074 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err5INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2025-03-14 22:40:07,075 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 22:40:07,075 INFO L85 PathProgramCache]: Analyzing trace with hash -1219397039, now seen corresponding path program 2 times [2025-03-14 22:40:07,075 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 22:40:07,075 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [211382530] [2025-03-14 22:40:07,075 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-14 22:40:07,075 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 22:40:07,100 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-14 22:40:07,100 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2025-03-14 22:40:07,187 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2025-03-14 22:40:07,187 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 22:40:07,187 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [211382530] [2025-03-14 22:40:07,187 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [211382530] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-14 22:40:07,187 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1024191285] [2025-03-14 22:40:07,187 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-14 22:40:07,187 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-14 22:40:07,187 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-14 22:40:07,189 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-14 22:40:07,191 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-03-14 22:40:07,271 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-14 22:40:07,271 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2025-03-14 22:40:07,273 INFO L256 TraceCheckSpWp]: Trace formula consists of 377 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-03-14 22:40:07,277 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-14 22:40:07,452 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 1 proven. 9 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-03-14 22:40:07,452 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-14 22:40:07,645 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-03-14 22:40:07,645 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1024191285] provided 1 perfect and 1 imperfect interpolant sequences [2025-03-14 22:40:07,645 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2025-03-14 22:40:07,645 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [5, 9] total 17 [2025-03-14 22:40:07,645 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [387543454] [2025-03-14 22:40:07,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 22:40:07,646 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-14 22:40:07,646 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 22:40:07,646 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-14 22:40:07,646 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=207, Unknown=0, NotChecked=0, Total=272 [2025-03-14 22:40:07,647 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 145 out of 199 [2025-03-14 22:40:07,648 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 247 places, 497 transitions, 6148 flow. Second operand has 9 states, 9 states have (on average 149.55555555555554) internal successors, (1346), 9 states have internal predecessors, (1346), 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) [2025-03-14 22:40:07,648 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 22:40:07,648 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 145 of 199 [2025-03-14 22:40:07,648 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 22:40:08,121 INFO L124 PetriNetUnfolderBase]: 799/2601 cut-off events. [2025-03-14 22:40:08,121 INFO L125 PetriNetUnfolderBase]: For 11339/12533 co-relation queries the response was YES. [2025-03-14 22:40:08,125 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13419 conditions, 2601 events. 799/2601 cut-off events. For 11339/12533 co-relation queries the response was YES. Maximal size of possible extension queue 102. Compared 19041 event pairs, 92 based on Foata normal form. 43/2434 useless extension candidates. Maximal degree in co-relation 9389. Up to 1252 conditions per place. [2025-03-14 22:40:08,136 INFO L140 encePairwiseOnDemand]: 183/199 looper letters, 221 selfloop transitions, 23 changer transitions 99/480 dead transitions. [2025-03-14 22:40:08,136 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 256 places, 480 transitions, 6546 flow [2025-03-14 22:40:08,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-14 22:40:08,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2025-03-14 22:40:08,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1528 transitions. [2025-03-14 22:40:08,139 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.7678391959798995 [2025-03-14 22:40:08,139 INFO L298 CegarLoopForPetriNet]: 197 programPoint places, 59 predicate places. [2025-03-14 22:40:08,139 INFO L471 AbstractCegarLoop]: Abstraction has has 256 places, 480 transitions, 6546 flow [2025-03-14 22:40:08,140 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 149.55555555555554) internal successors, (1346), 9 states have internal predecessors, (1346), 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) [2025-03-14 22:40:08,140 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-14 22:40:08,140 INFO L221 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-14 22:40:08,146 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-03-14 22:40:08,344 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-14 22:40:08,344 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err5INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2025-03-14 22:40:08,345 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 22:40:08,345 INFO L85 PathProgramCache]: Analyzing trace with hash -1738408606, now seen corresponding path program 1 times [2025-03-14 22:40:08,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 22:40:08,345 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [77293108] [2025-03-14 22:40:08,345 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-14 22:40:08,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 22:40:08,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 22:40:08,505 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-03-14 22:40:08,505 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 22:40:08,505 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [77293108] [2025-03-14 22:40:08,505 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [77293108] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-14 22:40:08,505 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1973181714] [2025-03-14 22:40:08,506 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-14 22:40:08,506 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-14 22:40:08,506 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-14 22:40:08,509 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-14 22:40:08,510 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-03-14 22:40:08,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 22:40:08,597 INFO L256 TraceCheckSpWp]: Trace formula consists of 377 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-03-14 22:40:08,600 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-14 22:40:08,735 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 1 proven. 9 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-03-14 22:40:08,735 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-14 22:40:08,905 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-03-14 22:40:08,906 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1973181714] provided 1 perfect and 1 imperfect interpolant sequences [2025-03-14 22:40:08,906 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2025-03-14 22:40:08,906 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [9, 9] total 19 [2025-03-14 22:40:08,906 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1568949594] [2025-03-14 22:40:08,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 22:40:08,906 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-14 22:40:08,906 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 22:40:08,907 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-14 22:40:08,908 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=262, Unknown=0, NotChecked=0, Total=342 [2025-03-14 22:40:08,908 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 145 out of 199 [2025-03-14 22:40:08,909 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 256 places, 480 transitions, 6546 flow. Second operand has 9 states, 9 states have (on average 149.55555555555554) internal successors, (1346), 9 states have internal predecessors, (1346), 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) [2025-03-14 22:40:08,909 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 22:40:08,909 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 145 of 199 [2025-03-14 22:40:08,909 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 22:40:09,375 INFO L124 PetriNetUnfolderBase]: 706/2315 cut-off events. [2025-03-14 22:40:09,375 INFO L125 PetriNetUnfolderBase]: For 12298/13362 co-relation queries the response was YES. [2025-03-14 22:40:09,379 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13124 conditions, 2315 events. 706/2315 cut-off events. For 12298/13362 co-relation queries the response was YES. Maximal size of possible extension queue 84. Compared 16361 event pairs, 75 based on Foata normal form. 72/2195 useless extension candidates. Maximal degree in co-relation 8800. Up to 1113 conditions per place. [2025-03-14 22:40:09,390 INFO L140 encePairwiseOnDemand]: 185/199 looper letters, 215 selfloop transitions, 20 changer transitions 98/464 dead transitions. [2025-03-14 22:40:09,390 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 265 places, 464 transitions, 6981 flow [2025-03-14 22:40:09,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-14 22:40:09,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2025-03-14 22:40:09,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1534 transitions. [2025-03-14 22:40:09,394 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.770854271356784 [2025-03-14 22:40:09,395 INFO L298 CegarLoopForPetriNet]: 197 programPoint places, 68 predicate places. [2025-03-14 22:40:09,395 INFO L471 AbstractCegarLoop]: Abstraction has has 265 places, 464 transitions, 6981 flow [2025-03-14 22:40:09,396 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 149.55555555555554) internal successors, (1346), 9 states have internal predecessors, (1346), 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) [2025-03-14 22:40:09,396 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-14 22:40:09,396 INFO L221 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-14 22:40:09,402 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2025-03-14 22:40:09,600 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-14 22:40:09,600 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err5INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2025-03-14 22:40:09,601 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 22:40:09,601 INFO L85 PathProgramCache]: Analyzing trace with hash 1256830819, now seen corresponding path program 1 times [2025-03-14 22:40:09,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 22:40:09,601 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [538723444] [2025-03-14 22:40:09,601 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-14 22:40:09,601 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 22:40:09,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 22:40:10,404 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-14 22:40:10,404 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 22:40:10,404 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [538723444] [2025-03-14 22:40:10,404 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [538723444] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-14 22:40:10,404 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1661933559] [2025-03-14 22:40:10,404 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-14 22:40:10,404 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-14 22:40:10,404 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-14 22:40:10,406 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-14 22:40:10,408 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-03-14 22:40:10,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 22:40:10,488 INFO L256 TraceCheckSpWp]: Trace formula consists of 394 conjuncts, 29 conjuncts are in the unsatisfiable core [2025-03-14 22:40:10,490 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-14 22:40:10,636 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2025-03-14 22:40:10,673 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2025-03-14 22:40:10,673 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-14 22:40:10,774 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-03-14 22:40:10,774 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 20 treesize of output 14 [2025-03-14 22:40:10,832 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2025-03-14 22:40:10,832 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1661933559] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-14 22:40:10,832 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-14 22:40:10,832 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 10, 10] total 25 [2025-03-14 22:40:10,832 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1195189278] [2025-03-14 22:40:10,832 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-14 22:40:10,833 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2025-03-14 22:40:10,833 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 22:40:10,833 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2025-03-14 22:40:10,834 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=534, Unknown=0, NotChecked=0, Total=600 [2025-03-14 22:40:10,835 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 103 out of 199 [2025-03-14 22:40:10,836 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 265 places, 464 transitions, 6981 flow. Second operand has 25 states, 25 states have (on average 107.4) internal successors, (2685), 25 states have internal predecessors, (2685), 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) [2025-03-14 22:40:10,836 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 22:40:10,836 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 103 of 199 [2025-03-14 22:40:10,836 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 22:40:12,572 INFO L124 PetriNetUnfolderBase]: 1137/3380 cut-off events. [2025-03-14 22:40:12,572 INFO L125 PetriNetUnfolderBase]: For 18916/19913 co-relation queries the response was YES. [2025-03-14 22:40:12,579 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22185 conditions, 3380 events. 1137/3380 cut-off events. For 18916/19913 co-relation queries the response was YES. Maximal size of possible extension queue 152. Compared 25894 event pairs, 81 based on Foata normal form. 77/3185 useless extension candidates. Maximal degree in co-relation 17113. Up to 1766 conditions per place. [2025-03-14 22:40:12,603 INFO L140 encePairwiseOnDemand]: 171/199 looper letters, 432 selfloop transitions, 139 changer transitions 115/780 dead transitions. [2025-03-14 22:40:12,603 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 301 places, 780 transitions, 14794 flow [2025-03-14 22:40:12,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2025-03-14 22:40:12,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2025-03-14 22:40:12,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 4090 transitions. [2025-03-14 22:40:12,610 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.5554801032187967 [2025-03-14 22:40:12,610 INFO L298 CegarLoopForPetriNet]: 197 programPoint places, 104 predicate places. [2025-03-14 22:40:12,610 INFO L471 AbstractCegarLoop]: Abstraction has has 301 places, 780 transitions, 14794 flow [2025-03-14 22:40:12,611 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 107.4) internal successors, (2685), 25 states have internal predecessors, (2685), 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) [2025-03-14 22:40:12,611 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-14 22:40:12,612 INFO L221 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-14 22:40:12,618 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2025-03-14 22:40:12,812 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2025-03-14 22:40:12,812 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err5INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2025-03-14 22:40:12,813 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 22:40:12,813 INFO L85 PathProgramCache]: Analyzing trace with hash 462953965, now seen corresponding path program 1 times [2025-03-14 22:40:12,813 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 22:40:12,813 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1030752475] [2025-03-14 22:40:12,813 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-14 22:40:12,813 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 22:40:12,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 22:40:13,665 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-14 22:40:13,666 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 22:40:13,666 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1030752475] [2025-03-14 22:40:13,666 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1030752475] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-14 22:40:13,666 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2005221363] [2025-03-14 22:40:13,666 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-14 22:40:13,666 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-14 22:40:13,666 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-14 22:40:13,668 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-14 22:40:13,670 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2025-03-14 22:40:13,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 22:40:13,748 INFO L256 TraceCheckSpWp]: Trace formula consists of 394 conjuncts, 29 conjuncts are in the unsatisfiable core [2025-03-14 22:40:13,751 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-14 22:40:13,898 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2025-03-14 22:40:13,934 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2025-03-14 22:40:13,934 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-14 22:40:14,024 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-03-14 22:40:14,024 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 16 [2025-03-14 22:40:14,086 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2025-03-14 22:40:14,086 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2005221363] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-14 22:40:14,086 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-14 22:40:14,087 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 10, 10] total 26 [2025-03-14 22:40:14,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [997262182] [2025-03-14 22:40:14,087 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-14 22:40:14,087 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2025-03-14 22:40:14,087 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 22:40:14,088 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2025-03-14 22:40:14,088 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=569, Unknown=0, NotChecked=0, Total=650 [2025-03-14 22:40:14,089 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 103 out of 199 [2025-03-14 22:40:14,091 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 301 places, 780 transitions, 14794 flow. Second operand has 26 states, 26 states have (on average 107.23076923076923) internal successors, (2788), 26 states have internal predecessors, (2788), 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) [2025-03-14 22:40:14,091 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 22:40:14,091 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 103 of 199 [2025-03-14 22:40:14,091 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 22:40:15,354 INFO L124 PetriNetUnfolderBase]: 1291/3850 cut-off events. [2025-03-14 22:40:15,354 INFO L125 PetriNetUnfolderBase]: For 26724/28107 co-relation queries the response was YES. [2025-03-14 22:40:15,363 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27202 conditions, 3850 events. 1291/3850 cut-off events. For 26724/28107 co-relation queries the response was YES. Maximal size of possible extension queue 180. Compared 30896 event pairs, 68 based on Foata normal form. 81/3624 useless extension candidates. Maximal degree in co-relation 21554. Up to 2001 conditions per place. [2025-03-14 22:40:15,387 INFO L140 encePairwiseOnDemand]: 171/199 looper letters, 593 selfloop transitions, 78 changer transitions 134/899 dead transitions. [2025-03-14 22:40:15,387 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 327 places, 899 transitions, 19049 flow [2025-03-14 22:40:15,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2025-03-14 22:40:15,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2025-03-14 22:40:15,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 2956 transitions. [2025-03-14 22:40:15,390 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.5501581983994044 [2025-03-14 22:40:15,391 INFO L298 CegarLoopForPetriNet]: 197 programPoint places, 130 predicate places. [2025-03-14 22:40:15,391 INFO L471 AbstractCegarLoop]: Abstraction has has 327 places, 899 transitions, 19049 flow [2025-03-14 22:40:15,392 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 107.23076923076923) internal successors, (2788), 26 states have internal predecessors, (2788), 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) [2025-03-14 22:40:15,392 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-14 22:40:15,392 INFO L221 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-14 22:40:15,398 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2025-03-14 22:40:15,592 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-14 22:40:15,593 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err5INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2025-03-14 22:40:15,594 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 22:40:15,594 INFO L85 PathProgramCache]: Analyzing trace with hash 509058703, now seen corresponding path program 2 times [2025-03-14 22:40:15,594 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 22:40:15,594 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [172044536] [2025-03-14 22:40:15,594 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-14 22:40:15,594 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 22:40:15,619 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-14 22:40:15,619 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2025-03-14 22:40:15,938 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2025-03-14 22:40:15,939 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 22:40:15,939 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [172044536] [2025-03-14 22:40:15,939 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [172044536] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-14 22:40:15,939 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1864459706] [2025-03-14 22:40:15,939 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-14 22:40:15,939 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-14 22:40:15,939 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-14 22:40:15,941 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-14 22:40:15,942 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2025-03-14 22:40:16,018 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-14 22:40:16,018 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2025-03-14 22:40:16,019 INFO L256 TraceCheckSpWp]: Trace formula consists of 394 conjuncts, 55 conjuncts are in the unsatisfiable core [2025-03-14 22:40:16,022 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-14 22:40:16,096 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2025-03-14 22:40:16,298 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2025-03-14 22:40:16,359 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-14 22:40:16,359 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-14 22:40:16,514 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2025-03-14 22:40:16,514 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1864459706] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-14 22:40:16,514 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-14 22:40:16,514 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 18, 10] total 30 [2025-03-14 22:40:16,514 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1983336989] [2025-03-14 22:40:16,514 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-14 22:40:16,515 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2025-03-14 22:40:16,515 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 22:40:16,515 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2025-03-14 22:40:16,516 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=102, Invalid=768, Unknown=0, NotChecked=0, Total=870 [2025-03-14 22:40:16,517 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 100 out of 199 [2025-03-14 22:40:16,518 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 327 places, 899 transitions, 19049 flow. Second operand has 30 states, 30 states have (on average 104.13333333333334) internal successors, (3124), 30 states have internal predecessors, (3124), 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) [2025-03-14 22:40:16,518 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 22:40:16,519 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 100 of 199 [2025-03-14 22:40:16,519 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 22:40:18,052 INFO L124 PetriNetUnfolderBase]: 1455/4235 cut-off events. [2025-03-14 22:40:18,053 INFO L125 PetriNetUnfolderBase]: For 35390/37173 co-relation queries the response was YES. [2025-03-14 22:40:18,059 INFO L83 FinitePrefix]: Finished finitePrefix Result has 32784 conditions, 4235 events. 1455/4235 cut-off events. For 35390/37173 co-relation queries the response was YES. Maximal size of possible extension queue 206. Compared 34539 event pairs, 71 based on Foata normal form. 89/3987 useless extension candidates. Maximal degree in co-relation 26534. Up to 2250 conditions per place. [2025-03-14 22:40:18,086 INFO L140 encePairwiseOnDemand]: 171/199 looper letters, 683 selfloop transitions, 100 changer transitions 153/1027 dead transitions. [2025-03-14 22:40:18,087 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 357 places, 1027 transitions, 24035 flow [2025-03-14 22:40:18,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2025-03-14 22:40:18,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2025-03-14 22:40:18,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 3304 transitions. [2025-03-14 22:40:18,089 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.5355811314637705 [2025-03-14 22:40:18,089 INFO L298 CegarLoopForPetriNet]: 197 programPoint places, 160 predicate places. [2025-03-14 22:40:18,089 INFO L471 AbstractCegarLoop]: Abstraction has has 357 places, 1027 transitions, 24035 flow [2025-03-14 22:40:18,090 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 104.13333333333334) internal successors, (3124), 30 states have internal predecessors, (3124), 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) [2025-03-14 22:40:18,090 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-14 22:40:18,090 INFO L221 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-14 22:40:18,096 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2025-03-14 22:40:18,295 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-14 22:40:18,295 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err5INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2025-03-14 22:40:18,296 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 22:40:18,296 INFO L85 PathProgramCache]: Analyzing trace with hash -1479781715, now seen corresponding path program 3 times [2025-03-14 22:40:18,296 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 22:40:18,296 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1549714503] [2025-03-14 22:40:18,296 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-14 22:40:18,296 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 22:40:18,321 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2025-03-14 22:40:18,321 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2025-03-14 22:40:18,576 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2025-03-14 22:40:18,576 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 22:40:18,576 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1549714503] [2025-03-14 22:40:18,577 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1549714503] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-14 22:40:18,577 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [330309922] [2025-03-14 22:40:18,577 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-14 22:40:18,577 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-14 22:40:18,577 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-14 22:40:18,579 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-14 22:40:18,580 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2025-03-14 22:40:18,656 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2025-03-14 22:40:18,656 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2025-03-14 22:40:18,657 INFO L256 TraceCheckSpWp]: Trace formula consists of 380 conjuncts, 29 conjuncts are in the unsatisfiable core [2025-03-14 22:40:18,659 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-14 22:40:18,777 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2025-03-14 22:40:18,819 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2025-03-14 22:40:18,819 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-14 22:40:18,961 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-03-14 22:40:18,961 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 20 treesize of output 14 [2025-03-14 22:40:18,971 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2025-03-14 22:40:18,972 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [330309922] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-14 22:40:18,972 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-14 22:40:18,972 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 10, 10] total 19 [2025-03-14 22:40:18,972 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1903954972] [2025-03-14 22:40:18,972 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-14 22:40:18,972 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2025-03-14 22:40:18,973 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 22:40:18,973 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2025-03-14 22:40:18,973 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=298, Unknown=0, NotChecked=0, Total=342 [2025-03-14 22:40:18,974 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 199 [2025-03-14 22:40:18,975 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 357 places, 1027 transitions, 24035 flow. Second operand has 19 states, 19 states have (on average 122.26315789473684) internal successors, (2323), 19 states have internal predecessors, (2323), 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) [2025-03-14 22:40:18,975 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 22:40:18,975 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 199 [2025-03-14 22:40:18,975 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 22:40:20,530 INFO L124 PetriNetUnfolderBase]: 1917/5261 cut-off events. [2025-03-14 22:40:20,530 INFO L125 PetriNetUnfolderBase]: For 46997/48840 co-relation queries the response was YES. [2025-03-14 22:40:20,539 INFO L83 FinitePrefix]: Finished finitePrefix Result has 45489 conditions, 5261 events. 1917/5261 cut-off events. For 46997/48840 co-relation queries the response was YES. Maximal size of possible extension queue 250. Compared 43638 event pairs, 82 based on Foata normal form. 139/5008 useless extension candidates. Maximal degree in co-relation 38372. Up to 2946 conditions per place. [2025-03-14 22:40:20,579 INFO L140 encePairwiseOnDemand]: 184/199 looper letters, 994 selfloop transitions, 200 changer transitions 174/1483 dead transitions. [2025-03-14 22:40:20,580 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 377 places, 1483 transitions, 38785 flow [2025-03-14 22:40:20,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2025-03-14 22:40:20,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2025-03-14 22:40:20,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 2710 transitions. [2025-03-14 22:40:20,581 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.6484804977267289 [2025-03-14 22:40:20,582 INFO L298 CegarLoopForPetriNet]: 197 programPoint places, 180 predicate places. [2025-03-14 22:40:20,582 INFO L471 AbstractCegarLoop]: Abstraction has has 377 places, 1483 transitions, 38785 flow [2025-03-14 22:40:20,583 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 122.26315789473684) internal successors, (2323), 19 states have internal predecessors, (2323), 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) [2025-03-14 22:40:20,583 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-14 22:40:20,583 INFO L221 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-14 22:40:20,593 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2025-03-14 22:40:20,783 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2025-03-14 22:40:20,783 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err5INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2025-03-14 22:40:20,784 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 22:40:20,784 INFO L85 PathProgramCache]: Analyzing trace with hash -78295775, now seen corresponding path program 4 times [2025-03-14 22:40:20,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 22:40:20,784 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1750859236] [2025-03-14 22:40:20,784 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-03-14 22:40:20,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 22:40:20,807 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2025-03-14 22:40:20,807 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2025-03-14 22:40:21,307 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-14 22:40:21,308 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 22:40:21,308 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1750859236] [2025-03-14 22:40:21,308 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1750859236] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-14 22:40:21,308 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1503408000] [2025-03-14 22:40:21,308 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-03-14 22:40:21,308 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-14 22:40:21,308 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-14 22:40:21,310 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-14 22:40:21,311 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2025-03-14 22:40:21,389 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2025-03-14 22:40:21,389 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2025-03-14 22:40:21,392 INFO L256 TraceCheckSpWp]: Trace formula consists of 394 conjuncts, 39 conjuncts are in the unsatisfiable core [2025-03-14 22:40:21,394 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-14 22:40:21,645 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2025-03-14 22:40:21,676 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2025-03-14 22:40:21,676 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-14 22:40:21,766 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-03-14 22:40:21,767 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 16 [2025-03-14 22:40:21,818 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2025-03-14 22:40:21,819 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1503408000] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-14 22:40:21,819 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-14 22:40:21,819 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 15, 10] total 26 [2025-03-14 22:40:21,819 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [764320851] [2025-03-14 22:40:21,819 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-14 22:40:21,819 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2025-03-14 22:40:21,820 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 22:40:21,820 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2025-03-14 22:40:21,820 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=580, Unknown=0, NotChecked=0, Total=650 [2025-03-14 22:40:21,821 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 103 out of 199 [2025-03-14 22:40:21,822 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 377 places, 1483 transitions, 38785 flow. Second operand has 26 states, 26 states have (on average 107.38461538461539) internal successors, (2792), 26 states have internal predecessors, (2792), 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) [2025-03-14 22:40:21,822 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 22:40:21,822 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 103 of 199 [2025-03-14 22:40:21,822 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 22:40:23,651 INFO L124 PetriNetUnfolderBase]: 2049/5522 cut-off events. [2025-03-14 22:40:23,651 INFO L125 PetriNetUnfolderBase]: For 53776/55277 co-relation queries the response was YES. [2025-03-14 22:40:23,658 INFO L83 FinitePrefix]: Finished finitePrefix Result has 51737 conditions, 5522 events. 2049/5522 cut-off events. For 53776/55277 co-relation queries the response was YES. Maximal size of possible extension queue 271. Compared 45926 event pairs, 86 based on Foata normal form. 56/5172 useless extension candidates. Maximal degree in co-relation 43936. Up to 3147 conditions per place. [2025-03-14 22:40:23,701 INFO L140 encePairwiseOnDemand]: 171/199 looper letters, 1197 selfloop transitions, 119 changer transitions 190/1600 dead transitions. [2025-03-14 22:40:23,702 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 407 places, 1600 transitions, 45136 flow [2025-03-14 22:40:23,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2025-03-14 22:40:23,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2025-03-14 22:40:23,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 3400 transitions. [2025-03-14 22:40:23,704 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.5511428108283353 [2025-03-14 22:40:23,705 INFO L298 CegarLoopForPetriNet]: 197 programPoint places, 210 predicate places. [2025-03-14 22:40:23,705 INFO L471 AbstractCegarLoop]: Abstraction has has 407 places, 1600 transitions, 45136 flow [2025-03-14 22:40:23,705 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 107.38461538461539) internal successors, (2792), 26 states have internal predecessors, (2792), 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) [2025-03-14 22:40:23,705 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-14 22:40:23,706 INFO L221 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-14 22:40:23,712 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2025-03-14 22:40:23,910 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2025-03-14 22:40:23,910 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err5INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2025-03-14 22:40:23,911 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 22:40:23,911 INFO L85 PathProgramCache]: Analyzing trace with hash -347832873, now seen corresponding path program 5 times [2025-03-14 22:40:23,911 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 22:40:23,911 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [731296216] [2025-03-14 22:40:23,911 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-03-14 22:40:23,911 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 22:40:23,929 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2025-03-14 22:40:23,930 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2025-03-14 22:40:24,510 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-14 22:40:24,510 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 22:40:24,510 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [731296216] [2025-03-14 22:40:24,511 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [731296216] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-14 22:40:24,511 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1880934766] [2025-03-14 22:40:24,511 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-03-14 22:40:24,511 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-14 22:40:24,511 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-14 22:40:24,512 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-14 22:40:24,513 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2025-03-14 22:40:24,589 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2025-03-14 22:40:24,589 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2025-03-14 22:40:24,590 INFO L256 TraceCheckSpWp]: Trace formula consists of 394 conjuncts, 31 conjuncts are in the unsatisfiable core [2025-03-14 22:40:24,592 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-14 22:40:24,714 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2025-03-14 22:40:24,765 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2025-03-14 22:40:24,765 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-14 22:40:24,821 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-03-14 22:40:24,821 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 16 [2025-03-14 22:40:24,879 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2025-03-14 22:40:24,880 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1880934766] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-14 22:40:24,880 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-14 22:40:24,880 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 10, 10] total 25 [2025-03-14 22:40:24,880 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1874198613] [2025-03-14 22:40:24,880 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-14 22:40:24,880 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2025-03-14 22:40:24,880 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 22:40:24,881 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2025-03-14 22:40:24,881 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=534, Unknown=0, NotChecked=0, Total=600 [2025-03-14 22:40:24,883 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 103 out of 199 [2025-03-14 22:40:24,885 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 407 places, 1600 transitions, 45136 flow. Second operand has 25 states, 25 states have (on average 107.36) internal successors, (2684), 25 states have internal predecessors, (2684), 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) [2025-03-14 22:40:24,885 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 22:40:24,885 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 103 of 199 [2025-03-14 22:40:24,885 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 22:40:26,733 INFO L124 PetriNetUnfolderBase]: 2181/5864 cut-off events. [2025-03-14 22:40:26,734 INFO L125 PetriNetUnfolderBase]: For 67141/69066 co-relation queries the response was YES. [2025-03-14 22:40:26,744 INFO L83 FinitePrefix]: Finished finitePrefix Result has 58476 conditions, 5864 events. 2181/5864 cut-off events. For 67141/69066 co-relation queries the response was YES. Maximal size of possible extension queue 296. Compared 49822 event pairs, 97 based on Foata normal form. 79/5509 useless extension candidates. Maximal degree in co-relation 49973. Up to 3348 conditions per place. [2025-03-14 22:40:26,790 INFO L140 encePairwiseOnDemand]: 171/199 looper letters, 1308 selfloop transitions, 109 changer transitions 206/1717 dead transitions. [2025-03-14 22:40:26,790 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 436 places, 1717 transitions, 51955 flow [2025-03-14 22:40:26,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2025-03-14 22:40:26,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2025-03-14 22:40:26,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 3279 transitions. [2025-03-14 22:40:26,792 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.5492462311557789 [2025-03-14 22:40:26,793 INFO L298 CegarLoopForPetriNet]: 197 programPoint places, 239 predicate places. [2025-03-14 22:40:26,793 INFO L471 AbstractCegarLoop]: Abstraction has has 436 places, 1717 transitions, 51955 flow [2025-03-14 22:40:26,794 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 107.36) internal successors, (2684), 25 states have internal predecessors, (2684), 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) [2025-03-14 22:40:26,794 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-14 22:40:26,794 INFO L221 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-14 22:40:26,799 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2025-03-14 22:40:26,994 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2025-03-14 22:40:26,994 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err5INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2025-03-14 22:40:26,995 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 22:40:26,995 INFO L85 PathProgramCache]: Analyzing trace with hash 160242821, now seen corresponding path program 2 times [2025-03-14 22:40:26,995 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 22:40:26,995 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1067641735] [2025-03-14 22:40:26,995 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-14 22:40:26,995 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 22:40:27,009 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-14 22:40:27,010 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2025-03-14 22:40:27,289 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2025-03-14 22:40:27,289 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 22:40:27,289 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1067641735] [2025-03-14 22:40:27,289 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1067641735] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 22:40:27,290 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-14 22:40:27,290 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2025-03-14 22:40:27,290 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1807189082] [2025-03-14 22:40:27,290 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 22:40:27,291 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-03-14 22:40:27,291 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 22:40:27,291 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-03-14 22:40:27,291 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2025-03-14 22:40:27,292 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 121 out of 199 [2025-03-14 22:40:27,293 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 436 places, 1717 transitions, 51955 flow. Second operand has 10 states, 10 states have (on average 126.8) internal successors, (1268), 10 states have internal predecessors, (1268), 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) [2025-03-14 22:40:27,293 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 22:40:27,293 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 121 of 199 [2025-03-14 22:40:27,293 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 22:40:29,006 INFO L124 PetriNetUnfolderBase]: 2304/6154 cut-off events. [2025-03-14 22:40:29,007 INFO L125 PetriNetUnfolderBase]: For 79555/81732 co-relation queries the response was YES. [2025-03-14 22:40:29,017 INFO L83 FinitePrefix]: Finished finitePrefix Result has 65304 conditions, 6154 events. 2304/6154 cut-off events. For 79555/81732 co-relation queries the response was YES. Maximal size of possible extension queue 320. Compared 52969 event pairs, 106 based on Foata normal form. 71/5773 useless extension candidates. Maximal degree in co-relation 56141. Up to 3535 conditions per place. [2025-03-14 22:40:29,074 INFO L140 encePairwiseOnDemand]: 184/199 looper letters, 1396 selfloop transitions, 97 changer transitions 225/1836 dead transitions. [2025-03-14 22:40:29,074 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 449 places, 1836 transitions, 59229 flow [2025-03-14 22:40:29,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-03-14 22:40:29,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2025-03-14 22:40:29,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1838 transitions. [2025-03-14 22:40:29,075 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.659727207465901 [2025-03-14 22:40:29,076 INFO L298 CegarLoopForPetriNet]: 197 programPoint places, 252 predicate places. [2025-03-14 22:40:29,076 INFO L471 AbstractCegarLoop]: Abstraction has has 449 places, 1836 transitions, 59229 flow [2025-03-14 22:40:29,076 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 126.8) internal successors, (1268), 10 states have internal predecessors, (1268), 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) [2025-03-14 22:40:29,076 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-14 22:40:29,076 INFO L221 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-14 22:40:29,076 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2025-03-14 22:40:29,076 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err5INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2025-03-14 22:40:29,077 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 22:40:29,077 INFO L85 PathProgramCache]: Analyzing trace with hash -1573233717, now seen corresponding path program 6 times [2025-03-14 22:40:29,077 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 22:40:29,077 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [598149607] [2025-03-14 22:40:29,077 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-03-14 22:40:29,077 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 22:40:29,092 INFO L229 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) [2025-03-14 22:40:29,092 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2025-03-14 22:40:29,591 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-14 22:40:29,591 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 22:40:29,592 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [598149607] [2025-03-14 22:40:29,592 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [598149607] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-14 22:40:29,592 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1226747220] [2025-03-14 22:40:29,592 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-03-14 22:40:29,592 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-14 22:40:29,592 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-14 22:40:29,594 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-14 22:40:29,595 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2025-03-14 22:40:29,672 INFO L229 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) [2025-03-14 22:40:29,672 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2025-03-14 22:40:29,674 INFO L256 TraceCheckSpWp]: Trace formula consists of 394 conjuncts, 55 conjuncts are in the unsatisfiable core [2025-03-14 22:40:29,679 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-14 22:40:29,709 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2025-03-14 22:40:29,822 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2025-03-14 22:40:29,867 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-14 22:40:29,867 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-14 22:40:29,986 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2025-03-14 22:40:29,986 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1226747220] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-14 22:40:29,986 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-14 22:40:29,986 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 18, 10] total 27 [2025-03-14 22:40:29,986 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [910769832] [2025-03-14 22:40:29,986 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-14 22:40:29,986 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2025-03-14 22:40:29,987 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 22:40:29,987 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2025-03-14 22:40:29,987 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=619, Unknown=0, NotChecked=0, Total=702 [2025-03-14 22:40:29,988 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 100 out of 199 [2025-03-14 22:40:29,989 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 449 places, 1836 transitions, 59229 flow. Second operand has 27 states, 27 states have (on average 104.29629629629629) internal successors, (2816), 27 states have internal predecessors, (2816), 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) [2025-03-14 22:40:29,989 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 22:40:29,989 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 100 of 199 [2025-03-14 22:40:29,989 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 22:40:32,244 INFO L124 PetriNetUnfolderBase]: 2436/6436 cut-off events. [2025-03-14 22:40:32,245 INFO L125 PetriNetUnfolderBase]: For 92727/95409 co-relation queries the response was YES. [2025-03-14 22:40:32,257 INFO L83 FinitePrefix]: Finished finitePrefix Result has 72792 conditions, 6436 events. 2436/6436 cut-off events. For 92727/95409 co-relation queries the response was YES. Maximal size of possible extension queue 342. Compared 55625 event pairs, 98 based on Foata normal form. 72/6038 useless extension candidates. Maximal degree in co-relation 62865. Up to 3736 conditions per place. [2025-03-14 22:40:32,318 INFO L140 encePairwiseOnDemand]: 171/199 looper letters, 1515 selfloop transitions, 106 changer transitions 241/1953 dead transitions. [2025-03-14 22:40:32,318 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 477 places, 1953 transitions, 66994 flow [2025-03-14 22:40:32,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2025-03-14 22:40:32,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2025-03-14 22:40:32,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 3093 transitions. [2025-03-14 22:40:32,320 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.5359556402703171 [2025-03-14 22:40:32,320 INFO L298 CegarLoopForPetriNet]: 197 programPoint places, 280 predicate places. [2025-03-14 22:40:32,320 INFO L471 AbstractCegarLoop]: Abstraction has has 477 places, 1953 transitions, 66994 flow [2025-03-14 22:40:32,321 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 104.29629629629629) internal successors, (2816), 27 states have internal predecessors, (2816), 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) [2025-03-14 22:40:32,321 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-14 22:40:32,321 INFO L221 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-14 22:40:32,327 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2025-03-14 22:40:32,521 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2025-03-14 22:40:32,522 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err5INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2025-03-14 22:40:32,522 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 22:40:32,522 INFO L85 PathProgramCache]: Analyzing trace with hash -1205789869, now seen corresponding path program 7 times [2025-03-14 22:40:32,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 22:40:32,523 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [106808365] [2025-03-14 22:40:32,523 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-03-14 22:40:32,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 22:40:32,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 22:40:32,918 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-14 22:40:32,919 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 22:40:32,919 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [106808365] [2025-03-14 22:40:32,919 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [106808365] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-14 22:40:32,919 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [40408558] [2025-03-14 22:40:32,919 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-03-14 22:40:32,919 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-14 22:40:32,919 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-14 22:40:32,921 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-14 22:40:32,922 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2025-03-14 22:40:32,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 22:40:32,992 INFO L256 TraceCheckSpWp]: Trace formula consists of 394 conjuncts, 29 conjuncts are in the unsatisfiable core [2025-03-14 22:40:32,993 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-14 22:40:33,099 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2025-03-14 22:40:33,132 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2025-03-14 22:40:33,132 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-14 22:40:33,132 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [40408558] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 22:40:33,132 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-14 22:40:33,132 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [18] total 22 [2025-03-14 22:40:33,133 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [210938801] [2025-03-14 22:40:33,133 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 22:40:33,133 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-03-14 22:40:33,133 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 22:40:33,133 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-03-14 22:40:33,133 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=405, Unknown=0, NotChecked=0, Total=462 [2025-03-14 22:40:33,134 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 121 out of 199 [2025-03-14 22:40:33,135 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 477 places, 1953 transitions, 66994 flow. Second operand has 10 states, 10 states have (on average 126.8) internal successors, (1268), 10 states have internal predecessors, (1268), 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) [2025-03-14 22:40:33,135 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 22:40:33,135 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 121 of 199 [2025-03-14 22:40:33,135 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 22:40:35,238 INFO L124 PetriNetUnfolderBase]: 2601/6804 cut-off events. [2025-03-14 22:40:35,238 INFO L125 PetriNetUnfolderBase]: For 109982/113116 co-relation queries the response was YES. [2025-03-14 22:40:35,251 INFO L83 FinitePrefix]: Finished finitePrefix Result has 81652 conditions, 6804 events. 2601/6804 cut-off events. For 109982/113116 co-relation queries the response was YES. Maximal size of possible extension queue 369. Compared 59409 event pairs, 95 based on Foata normal form. 102/6411 useless extension candidates. Maximal degree in co-relation 70927. Up to 3987 conditions per place. [2025-03-14 22:40:35,318 INFO L140 encePairwiseOnDemand]: 184/199 looper letters, 1536 selfloop transitions, 187 changer transitions 257/2098 dead transitions. [2025-03-14 22:40:35,319 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 492 places, 2098 transitions, 76255 flow [2025-03-14 22:40:35,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2025-03-14 22:40:35,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2025-03-14 22:40:35,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 2111 transitions. [2025-03-14 22:40:35,320 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.6630025125628141 [2025-03-14 22:40:35,320 INFO L298 CegarLoopForPetriNet]: 197 programPoint places, 295 predicate places. [2025-03-14 22:40:35,320 INFO L471 AbstractCegarLoop]: Abstraction has has 492 places, 2098 transitions, 76255 flow [2025-03-14 22:40:35,321 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 126.8) internal successors, (1268), 10 states have internal predecessors, (1268), 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) [2025-03-14 22:40:35,321 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-14 22:40:35,321 INFO L221 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-14 22:40:35,327 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2025-03-14 22:40:35,522 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2025-03-14 22:40:35,522 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err5INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2025-03-14 22:40:35,523 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 22:40:35,523 INFO L85 PathProgramCache]: Analyzing trace with hash -1655977583, now seen corresponding path program 3 times [2025-03-14 22:40:35,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 22:40:35,523 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [977498031] [2025-03-14 22:40:35,523 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-14 22:40:35,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 22:40:35,537 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2025-03-14 22:40:35,537 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2025-03-14 22:40:35,801 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2025-03-14 22:40:35,801 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 22:40:35,801 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [977498031] [2025-03-14 22:40:35,801 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [977498031] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-14 22:40:35,801 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1589009656] [2025-03-14 22:40:35,801 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-14 22:40:35,802 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-14 22:40:35,802 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-14 22:40:35,805 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-14 22:40:35,806 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2025-03-14 22:40:35,883 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2025-03-14 22:40:35,883 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2025-03-14 22:40:35,889 INFO L256 TraceCheckSpWp]: Trace formula consists of 380 conjuncts, 29 conjuncts are in the unsatisfiable core [2025-03-14 22:40:35,891 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-14 22:40:35,972 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2025-03-14 22:40:36,019 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2025-03-14 22:40:36,019 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-14 22:40:36,088 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-03-14 22:40:36,088 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 20 treesize of output 14 [2025-03-14 22:40:36,117 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2025-03-14 22:40:36,117 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1589009656] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-14 22:40:36,117 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-14 22:40:36,117 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10, 10] total 19 [2025-03-14 22:40:36,117 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [499835517] [2025-03-14 22:40:36,117 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-14 22:40:36,117 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2025-03-14 22:40:36,117 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 22:40:36,118 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2025-03-14 22:40:36,118 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=292, Unknown=0, NotChecked=0, Total=342 [2025-03-14 22:40:36,118 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 199 [2025-03-14 22:40:36,119 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 492 places, 2098 transitions, 76255 flow. Second operand has 19 states, 19 states have (on average 121.78947368421052) internal successors, (2314), 19 states have internal predecessors, (2314), 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) [2025-03-14 22:40:36,119 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 22:40:36,119 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 199 [2025-03-14 22:40:36,119 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 22:40:39,021 INFO L124 PetriNetUnfolderBase]: 2788/7217 cut-off events. [2025-03-14 22:40:39,021 INFO L125 PetriNetUnfolderBase]: For 128345/131514 co-relation queries the response was YES. [2025-03-14 22:40:39,034 INFO L83 FinitePrefix]: Finished finitePrefix Result has 91687 conditions, 7217 events. 2788/7217 cut-off events. For 128345/131514 co-relation queries the response was YES. Maximal size of possible extension queue 397. Compared 63669 event pairs, 107 based on Foata normal form. 105/6800 useless extension candidates. Maximal degree in co-relation 80237. Up to 4271 conditions per place. [2025-03-14 22:40:39,108 INFO L140 encePairwiseOnDemand]: 183/199 looper letters, 1622 selfloop transitions, 278 changer transitions 276/2291 dead transitions. [2025-03-14 22:40:39,108 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 523 places, 2291 transitions, 88013 flow [2025-03-14 22:40:39,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2025-03-14 22:40:39,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2025-03-14 22:40:39,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 4024 transitions. [2025-03-14 22:40:39,110 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.6319095477386935 [2025-03-14 22:40:39,111 INFO L298 CegarLoopForPetriNet]: 197 programPoint places, 326 predicate places. [2025-03-14 22:40:39,111 INFO L471 AbstractCegarLoop]: Abstraction has has 523 places, 2291 transitions, 88013 flow [2025-03-14 22:40:39,111 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 121.78947368421052) internal successors, (2314), 19 states have internal predecessors, (2314), 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) [2025-03-14 22:40:39,111 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-14 22:40:39,111 INFO L221 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-14 22:40:39,117 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2025-03-14 22:40:39,312 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-14 22:40:39,312 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err5INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2025-03-14 22:40:39,313 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 22:40:39,313 INFO L85 PathProgramCache]: Analyzing trace with hash -1383994153, now seen corresponding path program 8 times [2025-03-14 22:40:39,313 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 22:40:39,313 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [970342491] [2025-03-14 22:40:39,313 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-14 22:40:39,313 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 22:40:39,323 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-14 22:40:39,323 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2025-03-14 22:40:39,581 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2025-03-14 22:40:39,582 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 22:40:39,582 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [970342491] [2025-03-14 22:40:39,582 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [970342491] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 22:40:39,582 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-14 22:40:39,582 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2025-03-14 22:40:39,582 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1339118138] [2025-03-14 22:40:39,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 22:40:39,582 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-03-14 22:40:39,582 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 22:40:39,583 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-03-14 22:40:39,583 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2025-03-14 22:40:39,583 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 121 out of 199 [2025-03-14 22:40:39,584 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 523 places, 2291 transitions, 88013 flow. Second operand has 10 states, 10 states have (on average 126.8) internal successors, (1268), 10 states have internal predecessors, (1268), 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) [2025-03-14 22:40:39,584 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 22:40:39,584 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 121 of 199 [2025-03-14 22:40:39,584 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 22:40:42,306 INFO L124 PetriNetUnfolderBase]: 2922/7580 cut-off events. [2025-03-14 22:40:42,306 INFO L125 PetriNetUnfolderBase]: For 151003/154416 co-relation queries the response was YES. [2025-03-14 22:40:42,318 INFO L83 FinitePrefix]: Finished finitePrefix Result has 100640 conditions, 7580 events. 2922/7580 cut-off events. For 151003/154416 co-relation queries the response was YES. Maximal size of possible extension queue 422. Compared 67711 event pairs, 101 based on Foata normal form. 115/7145 useless extension candidates. Maximal degree in co-relation 88363. Up to 4475 conditions per place. [2025-03-14 22:40:42,399 INFO L140 encePairwiseOnDemand]: 184/199 looper letters, 1822 selfloop transitions, 179 changer transitions 292/2411 dead transitions. [2025-03-14 22:40:42,399 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 539 places, 2411 transitions, 97450 flow [2025-03-14 22:40:42,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2025-03-14 22:40:42,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2025-03-14 22:40:42,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 2224 transitions. [2025-03-14 22:40:42,401 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.6574046704108779 [2025-03-14 22:40:42,401 INFO L298 CegarLoopForPetriNet]: 197 programPoint places, 342 predicate places. [2025-03-14 22:40:42,401 INFO L471 AbstractCegarLoop]: Abstraction has has 539 places, 2411 transitions, 97450 flow [2025-03-14 22:40:42,401 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 126.8) internal successors, (1268), 10 states have internal predecessors, (1268), 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) [2025-03-14 22:40:42,401 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-14 22:40:42,401 INFO L221 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-14 22:40:42,402 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2025-03-14 22:40:42,402 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err5INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2025-03-14 22:40:42,402 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 22:40:42,402 INFO L85 PathProgramCache]: Analyzing trace with hash 1343167569, now seen corresponding path program 4 times [2025-03-14 22:40:42,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 22:40:42,402 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [835176091] [2025-03-14 22:40:42,402 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-03-14 22:40:42,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 22:40:42,415 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2025-03-14 22:40:42,415 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2025-03-14 22:40:42,742 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-14 22:40:42,742 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 22:40:42,742 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [835176091] [2025-03-14 22:40:42,742 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [835176091] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-14 22:40:42,742 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1330348159] [2025-03-14 22:40:42,742 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-03-14 22:40:42,742 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-14 22:40:42,742 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-14 22:40:42,744 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-14 22:40:42,745 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2025-03-14 22:40:42,822 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2025-03-14 22:40:42,822 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2025-03-14 22:40:42,824 INFO L256 TraceCheckSpWp]: Trace formula consists of 394 conjuncts, 39 conjuncts are in the unsatisfiable core [2025-03-14 22:40:42,826 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-14 22:40:43,051 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2025-03-14 22:40:43,076 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2025-03-14 22:40:43,076 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-14 22:40:43,151 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-03-14 22:40:43,151 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 16 [2025-03-14 22:40:43,193 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2025-03-14 22:40:43,193 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1330348159] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-14 22:40:43,194 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-14 22:40:43,194 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 15, 10] total 26 [2025-03-14 22:40:43,194 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1447367123] [2025-03-14 22:40:43,194 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-14 22:40:43,194 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2025-03-14 22:40:43,194 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 22:40:43,194 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2025-03-14 22:40:43,195 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=580, Unknown=0, NotChecked=0, Total=650 [2025-03-14 22:40:43,195 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 103 out of 199 [2025-03-14 22:40:43,196 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 539 places, 2411 transitions, 97450 flow. Second operand has 26 states, 26 states have (on average 107.46153846153847) internal successors, (2794), 26 states have internal predecessors, (2794), 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) [2025-03-14 22:40:43,197 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 22:40:43,197 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 103 of 199 [2025-03-14 22:40:43,197 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 22:40:46,700 INFO L124 PetriNetUnfolderBase]: 3095/7989 cut-off events. [2025-03-14 22:40:46,700 INFO L125 PetriNetUnfolderBase]: For 176593/180994 co-relation queries the response was YES. [2025-03-14 22:40:46,716 INFO L83 FinitePrefix]: Finished finitePrefix Result has 111345 conditions, 7989 events. 3095/7989 cut-off events. For 176593/180994 co-relation queries the response was YES. Maximal size of possible extension queue 450. Compared 72095 event pairs, 129 based on Foata normal form. 94/7512 useless extension candidates. Maximal degree in co-relation 98284. Up to 4738 conditions per place. [2025-03-14 22:40:46,809 INFO L140 encePairwiseOnDemand]: 171/199 looper letters, 2040 selfloop transitions, 139 changer transitions 311/2584 dead transitions. [2025-03-14 22:40:46,809 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 568 places, 2584 transitions, 109780 flow [2025-03-14 22:40:46,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2025-03-14 22:40:46,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2025-03-14 22:40:46,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 3290 transitions. [2025-03-14 22:40:46,811 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.5510887772194305 [2025-03-14 22:40:46,812 INFO L298 CegarLoopForPetriNet]: 197 programPoint places, 371 predicate places. [2025-03-14 22:40:46,812 INFO L471 AbstractCegarLoop]: Abstraction has has 568 places, 2584 transitions, 109780 flow [2025-03-14 22:40:46,812 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 107.46153846153847) internal successors, (2794), 26 states have internal predecessors, (2794), 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) [2025-03-14 22:40:46,812 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-14 22:40:46,812 INFO L221 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-14 22:40:46,818 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2025-03-14 22:40:47,013 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-14 22:40:47,013 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err5INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2025-03-14 22:40:47,014 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 22:40:47,014 INFO L85 PathProgramCache]: Analyzing trace with hash 722953861, now seen corresponding path program 5 times [2025-03-14 22:40:47,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 22:40:47,014 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [242370837] [2025-03-14 22:40:47,014 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-03-14 22:40:47,014 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 22:40:47,031 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2025-03-14 22:40:47,031 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2025-03-14 22:40:47,460 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-14 22:40:47,461 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 22:40:47,461 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [242370837] [2025-03-14 22:40:47,461 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [242370837] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-14 22:40:47,461 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [202565337] [2025-03-14 22:40:47,461 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-03-14 22:40:47,461 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-14 22:40:47,461 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-14 22:40:47,463 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-14 22:40:47,464 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2025-03-14 22:40:47,535 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2025-03-14 22:40:47,536 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2025-03-14 22:40:47,537 INFO L256 TraceCheckSpWp]: Trace formula consists of 394 conjuncts, 29 conjuncts are in the unsatisfiable core [2025-03-14 22:40:47,539 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-14 22:40:47,672 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2025-03-14 22:40:47,698 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2025-03-14 22:40:47,698 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-14 22:40:47,698 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [202565337] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 22:40:47,698 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-14 22:40:47,698 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [18] total 21 [2025-03-14 22:40:47,698 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1991056931] [2025-03-14 22:40:47,698 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 22:40:47,699 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-03-14 22:40:47,699 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 22:40:47,699 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-03-14 22:40:47,699 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=364, Unknown=0, NotChecked=0, Total=420 [2025-03-14 22:40:47,699 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 121 out of 199 [2025-03-14 22:40:47,700 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 568 places, 2584 transitions, 109780 flow. Second operand has 10 states, 10 states have (on average 126.8) internal successors, (1268), 10 states have internal predecessors, (1268), 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) [2025-03-14 22:40:47,700 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 22:40:47,700 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 121 of 199 [2025-03-14 22:40:47,700 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 22:40:50,949 INFO L124 PetriNetUnfolderBase]: 3220/8292 cut-off events. [2025-03-14 22:40:50,949 INFO L125 PetriNetUnfolderBase]: For 199695/203808 co-relation queries the response was YES. [2025-03-14 22:40:50,966 INFO L83 FinitePrefix]: Finished finitePrefix Result has 120812 conditions, 8292 events. 3220/8292 cut-off events. For 199695/203808 co-relation queries the response was YES. Maximal size of possible extension queue 475. Compared 75690 event pairs, 106 based on Foata normal form. 95/7790 useless extension candidates. Maximal degree in co-relation 106934. Up to 4928 conditions per place. [2025-03-14 22:40:51,208 INFO L140 encePairwiseOnDemand]: 184/199 looper letters, 2139 selfloop transitions, 119 changer transitions 330/2706 dead transitions. [2025-03-14 22:40:51,209 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 582 places, 2706 transitions, 120354 flow [2025-03-14 22:40:51,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-03-14 22:40:51,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2025-03-14 22:40:51,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1970 transitions. [2025-03-14 22:40:51,210 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.6599664991624791 [2025-03-14 22:40:51,211 INFO L298 CegarLoopForPetriNet]: 197 programPoint places, 385 predicate places. [2025-03-14 22:40:51,211 INFO L471 AbstractCegarLoop]: Abstraction has has 582 places, 2706 transitions, 120354 flow [2025-03-14 22:40:51,211 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 126.8) internal successors, (1268), 10 states have internal predecessors, (1268), 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) [2025-03-14 22:40:51,211 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-14 22:40:51,211 INFO L221 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-14 22:40:51,217 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2025-03-14 22:40:51,412 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-14 22:40:51,412 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err5INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2025-03-14 22:40:51,413 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 22:40:51,413 INFO L85 PathProgramCache]: Analyzing trace with hash -915213078, now seen corresponding path program 1 times [2025-03-14 22:40:51,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 22:40:51,413 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1524223651] [2025-03-14 22:40:51,413 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-14 22:40:51,413 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 22:40:51,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 22:40:51,856 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-14 22:40:51,856 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 22:40:51,856 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1524223651] [2025-03-14 22:40:51,856 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1524223651] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-14 22:40:51,856 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1792373708] [2025-03-14 22:40:51,856 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-14 22:40:51,856 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-14 22:40:51,856 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-14 22:40:51,858 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-14 22:40:51,859 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2025-03-14 22:40:51,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 22:40:51,938 INFO L256 TraceCheckSpWp]: Trace formula consists of 394 conjuncts, 29 conjuncts are in the unsatisfiable core [2025-03-14 22:40:51,939 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-14 22:40:52,052 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2025-03-14 22:40:52,077 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2025-03-14 22:40:52,078 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-14 22:40:52,143 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-03-14 22:40:52,143 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 16 [2025-03-14 22:40:52,183 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2025-03-14 22:40:52,184 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1792373708] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-14 22:40:52,184 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-14 22:40:52,184 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 10, 10] total 25 [2025-03-14 22:40:52,184 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [102978845] [2025-03-14 22:40:52,184 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-14 22:40:52,184 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2025-03-14 22:40:52,184 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 22:40:52,185 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2025-03-14 22:40:52,185 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=529, Unknown=0, NotChecked=0, Total=600 [2025-03-14 22:40:52,186 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 103 out of 199 [2025-03-14 22:40:52,187 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 582 places, 2706 transitions, 120354 flow. Second operand has 25 states, 25 states have (on average 107.44) internal successors, (2686), 25 states have internal predecessors, (2686), 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) [2025-03-14 22:40:52,187 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 22:40:52,187 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 103 of 199 [2025-03-14 22:40:52,187 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 22:40:56,850 INFO L124 PetriNetUnfolderBase]: 3352/8632 cut-off events. [2025-03-14 22:40:56,850 INFO L125 PetriNetUnfolderBase]: For 225820/230542 co-relation queries the response was YES. [2025-03-14 22:40:56,864 INFO L83 FinitePrefix]: Finished finitePrefix Result has 131002 conditions, 8632 events. 3352/8632 cut-off events. For 225820/230542 co-relation queries the response was YES. Maximal size of possible extension queue 498. Compared 79321 event pairs, 120 based on Foata normal form. 108/8120 useless extension candidates. Maximal degree in co-relation 116212. Up to 5129 conditions per place. [2025-03-14 22:40:56,972 INFO L140 encePairwiseOnDemand]: 171/199 looper letters, 2257 selfloop transitions, 126 changer transitions 346/2823 dead transitions. [2025-03-14 22:40:56,972 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 609 places, 2823 transitions, 131257 flow [2025-03-14 22:40:56,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2025-03-14 22:40:56,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2025-03-14 22:40:56,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 3074 transitions. [2025-03-14 22:40:56,974 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.5516870064608758 [2025-03-14 22:40:56,974 INFO L298 CegarLoopForPetriNet]: 197 programPoint places, 412 predicate places. [2025-03-14 22:40:56,974 INFO L471 AbstractCegarLoop]: Abstraction has has 609 places, 2823 transitions, 131257 flow [2025-03-14 22:40:56,975 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 107.44) internal successors, (2686), 25 states have internal predecessors, (2686), 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) [2025-03-14 22:40:56,975 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-14 22:40:56,975 INFO L221 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-14 22:40:56,980 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2025-03-14 22:40:57,175 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2025-03-14 22:40:57,175 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err5INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2025-03-14 22:40:57,176 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 22:40:57,176 INFO L85 PathProgramCache]: Analyzing trace with hash -15447630, now seen corresponding path program 2 times [2025-03-14 22:40:57,176 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 22:40:57,176 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2024434107] [2025-03-14 22:40:57,176 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-14 22:40:57,176 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 22:40:57,190 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-14 22:40:57,190 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2025-03-14 22:40:57,365 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2025-03-14 22:40:57,365 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 22:40:57,365 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2024434107] [2025-03-14 22:40:57,365 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2024434107] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-14 22:40:57,365 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1987415309] [2025-03-14 22:40:57,365 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-14 22:40:57,365 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-14 22:40:57,365 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-14 22:40:57,367 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-14 22:40:57,367 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2025-03-14 22:40:57,447 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-14 22:40:57,447 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2025-03-14 22:40:57,449 INFO L256 TraceCheckSpWp]: Trace formula consists of 394 conjuncts, 55 conjuncts are in the unsatisfiable core [2025-03-14 22:40:57,451 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-14 22:40:57,502 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2025-03-14 22:40:57,693 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2025-03-14 22:40:57,822 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-14 22:40:57,822 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-14 22:40:57,986 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2025-03-14 22:40:57,987 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1987415309] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-14 22:40:57,987 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-14 22:40:57,987 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 18, 10] total 28 [2025-03-14 22:40:57,987 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [512119707] [2025-03-14 22:40:57,987 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-14 22:40:57,987 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2025-03-14 22:40:57,989 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 22:40:57,989 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2025-03-14 22:40:57,990 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=89, Invalid=667, Unknown=0, NotChecked=0, Total=756 [2025-03-14 22:40:57,991 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 100 out of 199 [2025-03-14 22:40:58,012 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 609 places, 2823 transitions, 131257 flow. Second operand has 28 states, 28 states have (on average 104.25) internal successors, (2919), 28 states have internal predecessors, (2919), 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) [2025-03-14 22:40:58,012 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 22:40:58,012 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 100 of 199 [2025-03-14 22:40:58,012 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 22:41:02,643 INFO L124 PetriNetUnfolderBase]: 3484/8914 cut-off events. [2025-03-14 22:41:02,643 INFO L125 PetriNetUnfolderBase]: For 256041/261217 co-relation queries the response was YES. [2025-03-14 22:41:02,659 INFO L83 FinitePrefix]: Finished finitePrefix Result has 141547 conditions, 8914 events. 3484/8914 cut-off events. For 256041/261217 co-relation queries the response was YES. Maximal size of possible extension queue 521. Compared 82498 event pairs, 107 based on Foata normal form. 94/8362 useless extension candidates. Maximal degree in co-relation 125822. Up to 5330 conditions per place. [2025-03-14 22:41:02,968 INFO L140 encePairwiseOnDemand]: 171/199 looper letters, 2354 selfloop transitions, 133 changer transitions 362/2940 dead transitions. [2025-03-14 22:41:02,968 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 639 places, 2940 transitions, 142634 flow [2025-03-14 22:41:02,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2025-03-14 22:41:02,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2025-03-14 22:41:02,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 3313 transitions. [2025-03-14 22:41:02,971 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.5370400389041984 [2025-03-14 22:41:02,972 INFO L298 CegarLoopForPetriNet]: 197 programPoint places, 442 predicate places. [2025-03-14 22:41:02,972 INFO L471 AbstractCegarLoop]: Abstraction has has 639 places, 2940 transitions, 142634 flow [2025-03-14 22:41:02,973 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 104.25) internal successors, (2919), 28 states have internal predecessors, (2919), 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) [2025-03-14 22:41:02,973 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-14 22:41:02,973 INFO L221 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-14 22:41:02,980 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2025-03-14 22:41:03,174 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-14 22:41:03,175 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err5INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2025-03-14 22:41:03,175 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 22:41:03,176 INFO L85 PathProgramCache]: Analyzing trace with hash 1740657590, now seen corresponding path program 3 times [2025-03-14 22:41:03,176 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 22:41:03,176 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [658735605] [2025-03-14 22:41:03,176 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-14 22:41:03,176 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 22:41:03,207 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2025-03-14 22:41:03,207 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2025-03-14 22:41:03,506 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2025-03-14 22:41:03,507 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 22:41:03,507 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [658735605] [2025-03-14 22:41:03,507 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [658735605] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-14 22:41:03,507 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1314223711] [2025-03-14 22:41:03,507 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-14 22:41:03,507 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-14 22:41:03,507 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-14 22:41:03,509 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-14 22:41:03,509 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2025-03-14 22:41:03,586 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2025-03-14 22:41:03,586 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2025-03-14 22:41:03,588 INFO L256 TraceCheckSpWp]: Trace formula consists of 380 conjuncts, 29 conjuncts are in the unsatisfiable core [2025-03-14 22:41:03,590 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-14 22:41:03,701 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2025-03-14 22:41:03,743 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2025-03-14 22:41:03,743 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-14 22:41:03,802 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-03-14 22:41:03,803 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 16 [2025-03-14 22:41:03,853 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2025-03-14 22:41:03,853 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1314223711] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-14 22:41:03,853 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-14 22:41:03,853 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 10, 10] total 19 [2025-03-14 22:41:03,854 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [725937616] [2025-03-14 22:41:03,854 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-14 22:41:03,854 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2025-03-14 22:41:03,854 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 22:41:03,855 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2025-03-14 22:41:03,855 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=275, Unknown=0, NotChecked=0, Total=342 [2025-03-14 22:41:03,856 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 199 [2025-03-14 22:41:03,857 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 639 places, 2940 transitions, 142634 flow. Second operand has 19 states, 19 states have (on average 122.10526315789474) internal successors, (2320), 19 states have internal predecessors, (2320), 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) [2025-03-14 22:41:03,857 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 22:41:03,857 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 199 [2025-03-14 22:41:03,857 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 22:41:09,137 INFO L124 PetriNetUnfolderBase]: 3616/9182 cut-off events. [2025-03-14 22:41:09,137 INFO L125 PetriNetUnfolderBase]: For 280394/286027 co-relation queries the response was YES. [2025-03-14 22:41:09,152 INFO L83 FinitePrefix]: Finished finitePrefix Result has 152452 conditions, 9182 events. 3616/9182 cut-off events. For 280394/286027 co-relation queries the response was YES. Maximal size of possible extension queue 542. Compared 85294 event pairs, 140 based on Foata normal form. 86/8613 useless extension candidates. Maximal degree in co-relation 135790. Up to 5531 conditions per place. [2025-03-14 22:41:09,280 INFO L140 encePairwiseOnDemand]: 184/199 looper letters, 2447 selfloop transitions, 119 changer transitions 378/3059 dead transitions. [2025-03-14 22:41:09,281 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 656 places, 3059 transitions, 154523 flow [2025-03-14 22:41:09,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2025-03-14 22:41:09,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2025-03-14 22:41:09,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2303 transitions. [2025-03-14 22:41:09,282 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.6429369067560022 [2025-03-14 22:41:09,282 INFO L298 CegarLoopForPetriNet]: 197 programPoint places, 459 predicate places. [2025-03-14 22:41:09,282 INFO L471 AbstractCegarLoop]: Abstraction has has 656 places, 3059 transitions, 154523 flow [2025-03-14 22:41:09,283 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 122.10526315789474) internal successors, (2320), 19 states have internal predecessors, (2320), 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) [2025-03-14 22:41:09,283 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-14 22:41:09,283 INFO L221 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-14 22:41:09,293 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2025-03-14 22:41:09,483 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-14 22:41:09,484 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err5INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2025-03-14 22:41:09,484 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 22:41:09,485 INFO L85 PathProgramCache]: Analyzing trace with hash -975322991, now seen corresponding path program 6 times [2025-03-14 22:41:09,485 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 22:41:09,485 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1272824300] [2025-03-14 22:41:09,485 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-03-14 22:41:09,485 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 22:41:09,505 INFO L229 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) [2025-03-14 22:41:09,505 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2025-03-14 22:41:09,751 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2025-03-14 22:41:09,752 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 22:41:09,752 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1272824300] [2025-03-14 22:41:09,752 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1272824300] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-14 22:41:09,752 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [911815220] [2025-03-14 22:41:09,752 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-03-14 22:41:09,752 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-14 22:41:09,752 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-14 22:41:09,754 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-14 22:41:09,755 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2025-03-14 22:41:09,835 INFO L229 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) [2025-03-14 22:41:09,835 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2025-03-14 22:41:09,836 INFO L256 TraceCheckSpWp]: Trace formula consists of 394 conjuncts, 55 conjuncts are in the unsatisfiable core [2025-03-14 22:41:09,838 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-14 22:41:09,894 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2025-03-14 22:41:10,079 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2025-03-14 22:41:10,126 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-14 22:41:10,126 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-14 22:41:10,249 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2025-03-14 22:41:10,250 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [911815220] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-14 22:41:10,250 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-14 22:41:10,250 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 18, 10] total 30 [2025-03-14 22:41:10,250 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1203461297] [2025-03-14 22:41:10,250 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-14 22:41:10,250 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2025-03-14 22:41:10,251 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 22:41:10,251 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2025-03-14 22:41:10,251 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=771, Unknown=0, NotChecked=0, Total=870 [2025-03-14 22:41:10,252 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 100 out of 199 [2025-03-14 22:41:10,253 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 656 places, 3059 transitions, 154523 flow. Second operand has 30 states, 30 states have (on average 103.96666666666667) internal successors, (3119), 30 states have internal predecessors, (3119), 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) [2025-03-14 22:41:10,253 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 22:41:10,253 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 100 of 199 [2025-03-14 22:41:10,253 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 22:41:16,673 INFO L124 PetriNetUnfolderBase]: 3760/9509 cut-off events. [2025-03-14 22:41:16,673 INFO L125 PetriNetUnfolderBase]: For 307857/313125 co-relation queries the response was YES. [2025-03-14 22:41:16,693 INFO L83 FinitePrefix]: Finished finitePrefix Result has 164491 conditions, 9509 events. 3760/9509 cut-off events. For 307857/313125 co-relation queries the response was YES. Maximal size of possible extension queue 569. Compared 88670 event pairs, 132 based on Foata normal form. 91/8927 useless extension candidates. Maximal degree in co-relation 146874. Up to 5756 conditions per place. [2025-03-14 22:41:16,837 INFO L140 encePairwiseOnDemand]: 169/199 looper letters, 2543 selfloop transitions, 169 changer transitions 399/3202 dead transitions. [2025-03-14 22:41:16,837 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 693 places, 3202 transitions, 168256 flow [2025-03-14 22:41:16,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2025-03-14 22:41:16,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2025-03-14 22:41:16,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 4041 transitions. [2025-03-14 22:41:16,840 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.5343824385083311 [2025-03-14 22:41:16,840 INFO L298 CegarLoopForPetriNet]: 197 programPoint places, 496 predicate places. [2025-03-14 22:41:16,840 INFO L471 AbstractCegarLoop]: Abstraction has has 693 places, 3202 transitions, 168256 flow [2025-03-14 22:41:16,841 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 103.96666666666667) internal successors, (3119), 30 states have internal predecessors, (3119), 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) [2025-03-14 22:41:16,841 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-14 22:41:16,841 INFO L221 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-14 22:41:16,847 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2025-03-14 22:41:17,041 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25,20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-14 22:41:17,041 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err5INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2025-03-14 22:41:17,042 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 22:41:17,042 INFO L85 PathProgramCache]: Analyzing trace with hash 1826888213, now seen corresponding path program 7 times [2025-03-14 22:41:17,042 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 22:41:17,042 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1798026640] [2025-03-14 22:41:17,042 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-03-14 22:41:17,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 22:41:17,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 22:41:17,716 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-14 22:41:17,716 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 22:41:17,716 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1798026640] [2025-03-14 22:41:17,717 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1798026640] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-14 22:41:17,717 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [233195233] [2025-03-14 22:41:17,717 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-03-14 22:41:17,717 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-14 22:41:17,717 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-14 22:41:17,718 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-14 22:41:17,720 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2025-03-14 22:41:17,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 22:41:17,814 INFO L256 TraceCheckSpWp]: Trace formula consists of 394 conjuncts, 29 conjuncts are in the unsatisfiable core [2025-03-14 22:41:17,817 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-14 22:41:17,977 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2025-03-14 22:41:17,997 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2025-03-14 22:41:17,998 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-14 22:41:17,998 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [233195233] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 22:41:17,998 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-14 22:41:17,998 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [19] total 23 [2025-03-14 22:41:17,998 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1476104824] [2025-03-14 22:41:17,998 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 22:41:17,998 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-03-14 22:41:17,998 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 22:41:17,998 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-03-14 22:41:17,999 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=444, Unknown=0, NotChecked=0, Total=506 [2025-03-14 22:41:17,999 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 121 out of 199 [2025-03-14 22:41:18,000 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 693 places, 3202 transitions, 168256 flow. Second operand has 10 states, 10 states have (on average 126.8) internal successors, (1268), 10 states have internal predecessors, (1268), 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) [2025-03-14 22:41:18,000 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 22:41:18,000 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 121 of 199 [2025-03-14 22:41:18,000 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 22:41:24,628 INFO L124 PetriNetUnfolderBase]: 3883/9807 cut-off events. [2025-03-14 22:41:24,628 INFO L125 PetriNetUnfolderBase]: For 350158/356711 co-relation queries the response was YES. [2025-03-14 22:41:24,642 INFO L83 FinitePrefix]: Finished finitePrefix Result has 175880 conditions, 9807 events. 3883/9807 cut-off events. For 350158/356711 co-relation queries the response was YES. Maximal size of possible extension queue 590. Compared 92056 event pairs, 136 based on Foata normal form. 132/9239 useless extension candidates. Maximal degree in co-relation 157537. Up to 5943 conditions per place. [2025-03-14 22:41:24,782 INFO L140 encePairwiseOnDemand]: 184/199 looper letters, 2583 selfloop transitions, 202 changer transitions 418/3321 dead transitions. [2025-03-14 22:41:24,782 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 708 places, 3321 transitions, 181118 flow [2025-03-14 22:41:24,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2025-03-14 22:41:24,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2025-03-14 22:41:24,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 2110 transitions. [2025-03-14 22:41:24,783 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.6626884422110553 [2025-03-14 22:41:24,783 INFO L298 CegarLoopForPetriNet]: 197 programPoint places, 511 predicate places. [2025-03-14 22:41:24,783 INFO L471 AbstractCegarLoop]: Abstraction has has 708 places, 3321 transitions, 181118 flow [2025-03-14 22:41:24,784 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 126.8) internal successors, (1268), 10 states have internal predecessors, (1268), 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) [2025-03-14 22:41:24,784 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-14 22:41:24,784 INFO L221 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-14 22:41:24,790 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2025-03-14 22:41:24,984 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2025-03-14 22:41:24,984 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err5INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2025-03-14 22:41:24,985 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 22:41:24,985 INFO L85 PathProgramCache]: Analyzing trace with hash 1532754470, now seen corresponding path program 1 times [2025-03-14 22:41:24,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 22:41:24,985 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [266480684] [2025-03-14 22:41:24,985 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-14 22:41:24,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 22:41:24,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 22:41:25,315 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-14 22:41:25,316 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 22:41:25,316 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [266480684] [2025-03-14 22:41:25,316 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [266480684] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-14 22:41:25,316 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1547971253] [2025-03-14 22:41:25,316 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-14 22:41:25,316 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-14 22:41:25,316 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-14 22:41:25,318 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-14 22:41:25,318 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2025-03-14 22:41:25,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 22:41:25,390 INFO L256 TraceCheckSpWp]: Trace formula consists of 394 conjuncts, 29 conjuncts are in the unsatisfiable core [2025-03-14 22:41:25,392 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-14 22:41:25,506 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2025-03-14 22:41:25,532 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2025-03-14 22:41:25,532 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-14 22:41:25,532 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1547971253] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 22:41:25,532 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-14 22:41:25,532 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [18] total 21 [2025-03-14 22:41:25,532 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1868452540] [2025-03-14 22:41:25,532 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 22:41:25,532 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-03-14 22:41:25,532 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 22:41:25,533 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-03-14 22:41:25,533 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=366, Unknown=0, NotChecked=0, Total=420 [2025-03-14 22:41:25,533 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 121 out of 199 [2025-03-14 22:41:25,534 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 708 places, 3321 transitions, 181118 flow. Second operand has 10 states, 10 states have (on average 126.8) internal successors, (1268), 10 states have internal predecessors, (1268), 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) [2025-03-14 22:41:25,534 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 22:41:25,534 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 121 of 199 [2025-03-14 22:41:25,534 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 22:41:33,947 INFO L124 PetriNetUnfolderBase]: 3982/10055 cut-off events. [2025-03-14 22:41:33,948 INFO L125 PetriNetUnfolderBase]: For 382693/389086 co-relation queries the response was YES. [2025-03-14 22:41:33,966 INFO L83 FinitePrefix]: Finished finitePrefix Result has 186587 conditions, 10055 events. 3982/10055 cut-off events. For 382693/389086 co-relation queries the response was YES. Maximal size of possible extension queue 612. Compared 95209 event pairs, 136 based on Foata normal form. 142/9481 useless extension candidates. Maximal degree in co-relation 167490. Up to 6094 conditions per place. [2025-03-14 22:41:34,300 INFO L140 encePairwiseOnDemand]: 184/199 looper letters, 2660 selfloop transitions, 195 changer transitions 437/3410 dead transitions. [2025-03-14 22:41:34,301 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 723 places, 3410 transitions, 192707 flow [2025-03-14 22:41:34,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2025-03-14 22:41:34,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2025-03-14 22:41:34,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 2109 transitions. [2025-03-14 22:41:34,302 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.6623743718592965 [2025-03-14 22:41:34,303 INFO L298 CegarLoopForPetriNet]: 197 programPoint places, 526 predicate places. [2025-03-14 22:41:34,303 INFO L471 AbstractCegarLoop]: Abstraction has has 723 places, 3410 transitions, 192707 flow [2025-03-14 22:41:34,303 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 126.8) internal successors, (1268), 10 states have internal predecessors, (1268), 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) [2025-03-14 22:41:34,303 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-14 22:41:34,303 INFO L221 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-14 22:41:34,310 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2025-03-14 22:41:34,504 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2025-03-14 22:41:34,504 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err5INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2025-03-14 22:41:34,505 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 22:41:34,505 INFO L85 PathProgramCache]: Analyzing trace with hash 38708299, now seen corresponding path program 8 times [2025-03-14 22:41:34,505 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 22:41:34,505 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1629037235] [2025-03-14 22:41:34,505 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-14 22:41:34,505 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 22:41:34,518 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-14 22:41:34,518 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2025-03-14 22:41:34,731 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2025-03-14 22:41:34,731 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 22:41:34,731 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1629037235] [2025-03-14 22:41:34,731 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1629037235] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-14 22:41:34,731 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [845203449] [2025-03-14 22:41:34,731 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-14 22:41:34,731 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-14 22:41:34,731 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-14 22:41:34,734 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-14 22:41:34,735 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2025-03-14 22:41:34,810 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-14 22:41:34,810 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2025-03-14 22:41:34,812 INFO L256 TraceCheckSpWp]: Trace formula consists of 394 conjuncts, 55 conjuncts are in the unsatisfiable core [2025-03-14 22:41:34,814 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-14 22:41:34,866 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2025-03-14 22:41:35,038 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2025-03-14 22:41:35,084 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-14 22:41:35,084 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-14 22:41:35,198 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2025-03-14 22:41:35,198 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [845203449] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-14 22:41:35,198 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-14 22:41:35,198 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 18, 10] total 29 [2025-03-14 22:41:35,198 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [880924980] [2025-03-14 22:41:35,198 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-14 22:41:35,198 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2025-03-14 22:41:35,199 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 22:41:35,199 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2025-03-14 22:41:35,199 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=729, Unknown=0, NotChecked=0, Total=812 [2025-03-14 22:41:35,200 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 100 out of 199 [2025-03-14 22:41:35,201 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 723 places, 3410 transitions, 192707 flow. Second operand has 29 states, 29 states have (on average 104.06896551724138) internal successors, (3018), 29 states have internal predecessors, (3018), 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) [2025-03-14 22:41:35,201 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 22:41:35,201 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 100 of 199 [2025-03-14 22:41:35,201 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 22:41:43,183 INFO L124 PetriNetUnfolderBase]: 4018/10083 cut-off events. [2025-03-14 22:41:43,183 INFO L125 PetriNetUnfolderBase]: For 406131/411843 co-relation queries the response was YES. [2025-03-14 22:41:43,204 INFO L83 FinitePrefix]: Finished finitePrefix Result has 194360 conditions, 10083 events. 4018/10083 cut-off events. For 406131/411843 co-relation queries the response was YES. Maximal size of possible extension queue 612. Compared 95340 event pairs, 109 based on Foata normal form. 134/9499 useless extension candidates. Maximal degree in co-relation 174151. Up to 6146 conditions per place. [2025-03-14 22:41:43,376 INFO L140 encePairwiseOnDemand]: 171/199 looper letters, 2692 selfloop transitions, 208 changer transitions 452/3443 dead transitions. [2025-03-14 22:41:43,376 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 753 places, 3443 transitions, 201387 flow [2025-03-14 22:41:43,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2025-03-14 22:41:43,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2025-03-14 22:41:43,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 3322 transitions. [2025-03-14 22:41:43,378 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.5384989463446264 [2025-03-14 22:41:43,378 INFO L298 CegarLoopForPetriNet]: 197 programPoint places, 556 predicate places. [2025-03-14 22:41:43,378 INFO L471 AbstractCegarLoop]: Abstraction has has 753 places, 3443 transitions, 201387 flow [2025-03-14 22:41:43,379 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 104.06896551724138) internal successors, (3018), 29 states have internal predecessors, (3018), 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) [2025-03-14 22:41:43,379 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-14 22:41:43,379 INFO L221 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-14 22:41:43,386 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0 [2025-03-14 22:41:43,580 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2025-03-14 22:41:43,580 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err5INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2025-03-14 22:41:43,581 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 22:41:43,581 INFO L85 PathProgramCache]: Analyzing trace with hash -774139389, now seen corresponding path program 1 times [2025-03-14 22:41:43,581 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 22:41:43,581 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1506520148] [2025-03-14 22:41:43,581 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-14 22:41:43,581 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 22:41:43,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 22:41:44,088 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-14 22:41:44,088 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 22:41:44,088 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1506520148] [2025-03-14 22:41:44,088 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1506520148] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-14 22:41:44,088 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [92263079] [2025-03-14 22:41:44,088 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-14 22:41:44,088 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-14 22:41:44,088 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-14 22:41:44,090 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-14 22:41:44,091 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2025-03-14 22:41:44,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 22:41:44,178 INFO L256 TraceCheckSpWp]: Trace formula consists of 394 conjuncts, 29 conjuncts are in the unsatisfiable core [2025-03-14 22:41:44,180 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-14 22:41:44,286 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2025-03-14 22:41:44,314 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2025-03-14 22:41:44,314 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-14 22:41:44,400 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-03-14 22:41:44,400 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 20 treesize of output 14 [2025-03-14 22:41:44,448 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2025-03-14 22:41:44,448 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [92263079] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-14 22:41:44,448 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-14 22:41:44,448 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 10, 10] total 25 [2025-03-14 22:41:44,448 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1277175528] [2025-03-14 22:41:44,448 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-14 22:41:44,449 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2025-03-14 22:41:44,449 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 22:41:44,449 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2025-03-14 22:41:44,450 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=534, Unknown=0, NotChecked=0, Total=600 [2025-03-14 22:41:44,451 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 103 out of 199 [2025-03-14 22:41:44,454 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 753 places, 3443 transitions, 201387 flow. Second operand has 25 states, 25 states have (on average 107.4) internal successors, (2685), 25 states have internal predecessors, (2685), 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) [2025-03-14 22:41:44,454 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 22:41:44,454 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 103 of 199 [2025-03-14 22:41:44,454 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 22:41:54,433 INFO L124 PetriNetUnfolderBase]: 4422/11047 cut-off events. [2025-03-14 22:41:54,433 INFO L125 PetriNetUnfolderBase]: For 472616/478715 co-relation queries the response was YES. [2025-03-14 22:41:54,450 INFO L83 FinitePrefix]: Finished finitePrefix Result has 220722 conditions, 11047 events. 4422/11047 cut-off events. For 472616/478715 co-relation queries the response was YES. Maximal size of possible extension queue 661. Compared 106097 event pairs, 139 based on Foata normal form. 54/10297 useless extension candidates. Maximal degree in co-relation 198407. Up to 6762 conditions per place. [2025-03-14 22:41:54,637 INFO L140 encePairwiseOnDemand]: 171/199 looper letters, 2998 selfloop transitions, 238 changer transitions 469/3799 dead transitions. [2025-03-14 22:41:54,637 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 789 places, 3799 transitions, 230177 flow [2025-03-14 22:41:54,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2025-03-14 22:41:54,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2025-03-14 22:41:54,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 4083 transitions. [2025-03-14 22:41:54,640 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.554529403775635 [2025-03-14 22:41:54,640 INFO L298 CegarLoopForPetriNet]: 197 programPoint places, 592 predicate places. [2025-03-14 22:41:54,640 INFO L471 AbstractCegarLoop]: Abstraction has has 789 places, 3799 transitions, 230177 flow [2025-03-14 22:41:54,640 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 107.4) internal successors, (2685), 25 states have internal predecessors, (2685), 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) [2025-03-14 22:41:54,640 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-14 22:41:54,640 INFO L221 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-14 22:41:54,647 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Ended with exit code 0 [2025-03-14 22:41:54,841 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,24 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-14 22:41:54,841 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err5INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2025-03-14 22:41:54,842 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 22:41:54,842 INFO L85 PathProgramCache]: Analyzing trace with hash -65833617, now seen corresponding path program 2 times [2025-03-14 22:41:54,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 22:41:54,842 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1557363982] [2025-03-14 22:41:54,842 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-14 22:41:54,842 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 22:41:54,853 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-14 22:41:54,853 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2025-03-14 22:41:55,367 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-14 22:41:55,367 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 22:41:55,367 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1557363982] [2025-03-14 22:41:55,367 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1557363982] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-14 22:41:55,367 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1592917382] [2025-03-14 22:41:55,367 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-14 22:41:55,367 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-14 22:41:55,367 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-14 22:41:55,369 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-14 22:41:55,370 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2025-03-14 22:41:55,441 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-14 22:41:55,441 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2025-03-14 22:41:55,442 INFO L256 TraceCheckSpWp]: Trace formula consists of 394 conjuncts, 55 conjuncts are in the unsatisfiable core [2025-03-14 22:41:55,444 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-14 22:41:55,466 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2025-03-14 22:41:55,602 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2025-03-14 22:41:55,628 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-14 22:41:55,628 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-14 22:41:55,740 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2025-03-14 22:41:55,740 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1592917382] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-14 22:41:55,740 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-14 22:41:55,740 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 18, 10] total 25 [2025-03-14 22:41:55,740 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1147412247] [2025-03-14 22:41:55,741 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-14 22:41:55,741 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2025-03-14 22:41:55,741 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 22:41:55,741 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2025-03-14 22:41:55,741 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=522, Unknown=0, NotChecked=0, Total=600 [2025-03-14 22:41:55,742 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 103 out of 199 [2025-03-14 22:41:55,743 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 789 places, 3799 transitions, 230177 flow. Second operand has 25 states, 25 states have (on average 107.52) internal successors, (2688), 25 states have internal predecessors, (2688), 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) [2025-03-14 22:41:55,743 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 22:41:55,743 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 103 of 199 [2025-03-14 22:41:55,743 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 22:42:05,533 INFO L124 PetriNetUnfolderBase]: 4537/11494 cut-off events. [2025-03-14 22:42:05,533 INFO L125 PetriNetUnfolderBase]: For 538126/545088 co-relation queries the response was YES. [2025-03-14 22:42:05,551 INFO L83 FinitePrefix]: Finished finitePrefix Result has 233639 conditions, 11494 events. 4537/11494 cut-off events. For 538126/545088 co-relation queries the response was YES. Maximal size of possible extension queue 687. Compared 112119 event pairs, 142 based on Foata normal form. 67/10706 useless extension candidates. Maximal degree in co-relation 210585. Up to 6935 conditions per place. [2025-03-14 22:42:05,742 INFO L140 encePairwiseOnDemand]: 171/199 looper letters, 3209 selfloop transitions, 128 changer transitions 489/3920 dead transitions. [2025-03-14 22:42:05,743 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 817 places, 3920 transitions, 245361 flow [2025-03-14 22:42:05,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2025-03-14 22:42:05,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2025-03-14 22:42:05,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 3177 transitions. [2025-03-14 22:42:05,744 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.5505111765725178 [2025-03-14 22:42:05,745 INFO L298 CegarLoopForPetriNet]: 197 programPoint places, 620 predicate places. [2025-03-14 22:42:05,745 INFO L471 AbstractCegarLoop]: Abstraction has has 817 places, 3920 transitions, 245361 flow [2025-03-14 22:42:05,745 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 107.52) internal successors, (2688), 25 states have internal predecessors, (2688), 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) [2025-03-14 22:42:05,745 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-14 22:42:05,745 INFO L221 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-14 22:42:05,751 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Ended with exit code 0 [2025-03-14 22:42:05,946 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,25 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-14 22:42:05,946 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err5INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2025-03-14 22:42:05,947 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 22:42:05,947 INFO L85 PathProgramCache]: Analyzing trace with hash 1654826905, now seen corresponding path program 1 times [2025-03-14 22:42:05,947 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 22:42:05,947 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [787147834] [2025-03-14 22:42:05,947 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-14 22:42:05,947 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 22:42:05,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 22:42:06,332 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-14 22:42:06,333 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 22:42:06,333 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [787147834] [2025-03-14 22:42:06,333 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [787147834] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-14 22:42:06,333 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [279151164] [2025-03-14 22:42:06,333 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-14 22:42:06,333 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-14 22:42:06,333 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-14 22:42:06,335 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-14 22:42:06,335 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2025-03-14 22:42:06,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 22:42:06,407 INFO L256 TraceCheckSpWp]: Trace formula consists of 394 conjuncts, 29 conjuncts are in the unsatisfiable core [2025-03-14 22:42:06,409 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-14 22:42:06,602 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2025-03-14 22:42:06,638 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2025-03-14 22:42:06,638 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-14 22:42:06,638 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [279151164] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 22:42:06,638 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-14 22:42:06,638 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [18] total 21 [2025-03-14 22:42:06,638 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1777134854] [2025-03-14 22:42:06,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 22:42:06,639 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-03-14 22:42:06,639 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 22:42:06,639 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-03-14 22:42:06,639 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=361, Unknown=0, NotChecked=0, Total=420 [2025-03-14 22:42:06,639 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 121 out of 199 [2025-03-14 22:42:06,640 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 817 places, 3920 transitions, 245361 flow. Second operand has 10 states, 10 states have (on average 126.8) internal successors, (1268), 10 states have internal predecessors, (1268), 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) [2025-03-14 22:42:06,640 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 22:42:06,640 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 121 of 199 [2025-03-14 22:42:06,640 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 22:42:19,403 INFO L124 PetriNetUnfolderBase]: 4647/11731 cut-off events. [2025-03-14 22:42:19,403 INFO L125 PetriNetUnfolderBase]: For 588450/596544 co-relation queries the response was YES. [2025-03-14 22:42:19,424 INFO L83 FinitePrefix]: Finished finitePrefix Result has 246438 conditions, 11731 events. 4647/11731 cut-off events. For 588450/596544 co-relation queries the response was YES. Maximal size of possible extension queue 708. Compared 114836 event pairs, 128 based on Foata normal form. 89/10943 useless extension candidates. Maximal degree in co-relation 222539. Up to 7101 conditions per place. [2025-03-14 22:42:19,631 INFO L140 encePairwiseOnDemand]: 184/199 looper letters, 3295 selfloop transitions, 114 changer transitions 509/4036 dead transitions. [2025-03-14 22:42:19,631 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 830 places, 4036 transitions, 260633 flow [2025-03-14 22:42:19,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-03-14 22:42:19,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2025-03-14 22:42:19,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1840 transitions. [2025-03-14 22:42:19,632 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.6604450825556353 [2025-03-14 22:42:19,633 INFO L298 CegarLoopForPetriNet]: 197 programPoint places, 633 predicate places. [2025-03-14 22:42:19,633 INFO L471 AbstractCegarLoop]: Abstraction has has 830 places, 4036 transitions, 260633 flow [2025-03-14 22:42:19,633 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 126.8) internal successors, (1268), 10 states have internal predecessors, (1268), 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) [2025-03-14 22:42:19,633 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-14 22:42:19,633 INFO L221 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-14 22:42:19,639 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0 [2025-03-14 22:42:19,833 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable31 [2025-03-14 22:42:19,834 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err5INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2025-03-14 22:42:19,835 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 22:42:19,835 INFO L85 PathProgramCache]: Analyzing trace with hash 2013206109, now seen corresponding path program 2 times [2025-03-14 22:42:19,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 22:42:19,835 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1278634399] [2025-03-14 22:42:19,835 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-14 22:42:19,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 22:42:19,848 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-14 22:42:19,848 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2025-03-14 22:42:19,996 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2025-03-14 22:42:19,996 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 22:42:19,996 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1278634399] [2025-03-14 22:42:19,996 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1278634399] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 22:42:19,996 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-14 22:42:19,996 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2025-03-14 22:42:19,996 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [527704093] [2025-03-14 22:42:19,996 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 22:42:19,997 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-03-14 22:42:19,997 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 22:42:19,997 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-03-14 22:42:19,997 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2025-03-14 22:42:19,997 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 121 out of 199 [2025-03-14 22:42:19,998 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 830 places, 4036 transitions, 260633 flow. Second operand has 10 states, 10 states have (on average 126.8) internal successors, (1268), 10 states have internal predecessors, (1268), 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) [2025-03-14 22:42:19,998 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 22:42:19,998 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 121 of 199 [2025-03-14 22:42:19,998 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 22:42:33,229 INFO L124 PetriNetUnfolderBase]: 4755/11944 cut-off events. [2025-03-14 22:42:33,229 INFO L125 PetriNetUnfolderBase]: For 623169/631297 co-relation queries the response was YES. [2025-03-14 22:42:33,254 INFO L83 FinitePrefix]: Finished finitePrefix Result has 259523 conditions, 11944 events. 4755/11944 cut-off events. For 623169/631297 co-relation queries the response was YES. Maximal size of possible extension queue 724. Compared 117088 event pairs, 130 based on Foata normal form. 76/11126 useless extension candidates. Maximal degree in co-relation 233885. Up to 7266 conditions per place. [2025-03-14 22:42:33,475 INFO L140 encePairwiseOnDemand]: 184/199 looper letters, 3391 selfloop transitions, 108 changer transitions 524/4141 dead transitions. [2025-03-14 22:42:33,475 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 843 places, 4141 transitions, 275624 flow [2025-03-14 22:42:33,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-03-14 22:42:33,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2025-03-14 22:42:33,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1843 transitions. [2025-03-14 22:42:33,476 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.6615218951902369 [2025-03-14 22:42:33,477 INFO L298 CegarLoopForPetriNet]: 197 programPoint places, 646 predicate places. [2025-03-14 22:42:33,477 INFO L471 AbstractCegarLoop]: Abstraction has has 843 places, 4141 transitions, 275624 flow [2025-03-14 22:42:33,477 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 126.8) internal successors, (1268), 10 states have internal predecessors, (1268), 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) [2025-03-14 22:42:33,477 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-14 22:42:33,477 INFO L221 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-14 22:42:33,477 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2025-03-14 22:42:33,477 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err5INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2025-03-14 22:42:33,478 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 22:42:33,478 INFO L85 PathProgramCache]: Analyzing trace with hash 349400253, now seen corresponding path program 3 times [2025-03-14 22:42:33,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 22:42:33,478 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1004970578] [2025-03-14 22:42:33,478 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-14 22:42:33,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 22:42:33,488 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2025-03-14 22:42:33,488 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2025-03-14 22:42:33,685 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2025-03-14 22:42:33,685 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 22:42:33,685 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1004970578] [2025-03-14 22:42:33,685 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1004970578] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-14 22:42:33,685 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1747529003] [2025-03-14 22:42:33,685 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-14 22:42:33,685 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-14 22:42:33,685 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-14 22:42:33,687 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-14 22:42:33,688 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2025-03-14 22:42:33,763 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2025-03-14 22:42:33,763 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2025-03-14 22:42:33,764 INFO L256 TraceCheckSpWp]: Trace formula consists of 380 conjuncts, 29 conjuncts are in the unsatisfiable core [2025-03-14 22:42:33,766 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-14 22:42:33,939 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2025-03-14 22:42:33,954 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2025-03-14 22:42:33,954 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-14 22:42:34,020 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-03-14 22:42:34,021 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 16 [2025-03-14 22:42:34,064 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2025-03-14 22:42:34,064 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1747529003] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-14 22:42:34,064 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-14 22:42:34,064 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 10, 10] total 19 [2025-03-14 22:42:34,064 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1318921856] [2025-03-14 22:42:34,064 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-14 22:42:34,064 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2025-03-14 22:42:34,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 22:42:34,065 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2025-03-14 22:42:34,065 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=286, Unknown=0, NotChecked=0, Total=342 [2025-03-14 22:42:34,066 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 199 [2025-03-14 22:42:34,066 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 843 places, 4141 transitions, 275624 flow. Second operand has 19 states, 19 states have (on average 122.26315789473684) internal successors, (2323), 19 states have internal predecessors, (2323), 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) [2025-03-14 22:42:34,066 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 22:42:34,066 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 199 [2025-03-14 22:42:34,066 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 22:42:49,607 INFO L124 PetriNetUnfolderBase]: 4931/12387 cut-off events. [2025-03-14 22:42:49,607 INFO L125 PetriNetUnfolderBase]: For 694226/703679 co-relation queries the response was YES. [2025-03-14 22:42:49,628 INFO L83 FinitePrefix]: Finished finitePrefix Result has 276665 conditions, 12387 events. 4931/12387 cut-off events. For 694226/703679 co-relation queries the response was YES. Maximal size of possible extension queue 759. Compared 122462 event pairs, 146 based on Foata normal form. 58/11517 useless extension candidates. Maximal degree in co-relation 251059. Up to 7533 conditions per place. [2025-03-14 22:42:49,913 INFO L140 encePairwiseOnDemand]: 183/199 looper letters, 3498 selfloop transitions, 145 changer transitions 539/4297 dead transitions. [2025-03-14 22:42:49,913 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 862 places, 4297 transitions, 294647 flow [2025-03-14 22:42:49,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2025-03-14 22:42:49,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2025-03-14 22:42:49,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2555 transitions. [2025-03-14 22:42:49,914 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.6419597989949749 [2025-03-14 22:42:49,915 INFO L298 CegarLoopForPetriNet]: 197 programPoint places, 665 predicate places. [2025-03-14 22:42:49,915 INFO L471 AbstractCegarLoop]: Abstraction has has 862 places, 4297 transitions, 294647 flow [2025-03-14 22:42:49,915 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 122.26315789473684) internal successors, (2323), 19 states have internal predecessors, (2323), 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) [2025-03-14 22:42:49,915 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-14 22:42:49,915 INFO L221 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-14 22:42:49,921 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Ended with exit code 0 [2025-03-14 22:42:50,115 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable33 [2025-03-14 22:42:50,116 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err5INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2025-03-14 22:42:50,116 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 22:42:50,117 INFO L85 PathProgramCache]: Analyzing trace with hash -1259220390, now seen corresponding path program 1 times [2025-03-14 22:42:50,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 22:42:50,117 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1052424418] [2025-03-14 22:42:50,117 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-14 22:42:50,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 22:42:50,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 22:42:50,456 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-14 22:42:50,456 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 22:42:50,456 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1052424418] [2025-03-14 22:42:50,456 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1052424418] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-14 22:42:50,456 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1362999272] [2025-03-14 22:42:50,456 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-14 22:42:50,457 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-14 22:42:50,457 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-14 22:42:50,458 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-14 22:42:50,461 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2025-03-14 22:42:50,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 22:42:50,542 INFO L256 TraceCheckSpWp]: Trace formula consists of 394 conjuncts, 29 conjuncts are in the unsatisfiable core [2025-03-14 22:42:50,544 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-14 22:42:50,647 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2025-03-14 22:42:50,696 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2025-03-14 22:42:50,696 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-14 22:42:50,696 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1362999272] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 22:42:50,696 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-14 22:42:50,696 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [18] total 21 [2025-03-14 22:42:50,696 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [294062103] [2025-03-14 22:42:50,696 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 22:42:50,696 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-03-14 22:42:50,696 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 22:42:50,697 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-03-14 22:42:50,697 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=364, Unknown=0, NotChecked=0, Total=420 [2025-03-14 22:42:50,697 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 121 out of 199 [2025-03-14 22:42:50,698 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 862 places, 4297 transitions, 294647 flow. Second operand has 10 states, 10 states have (on average 126.8) internal successors, (1268), 10 states have internal predecessors, (1268), 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) [2025-03-14 22:42:50,698 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 22:42:50,698 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 121 of 199 [2025-03-14 22:42:50,698 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 22:43:06,671 INFO L124 PetriNetUnfolderBase]: 5039/12584 cut-off events. [2025-03-14 22:43:06,671 INFO L125 PetriNetUnfolderBase]: For 743291/753589 co-relation queries the response was YES. [2025-03-14 22:43:06,693 INFO L83 FinitePrefix]: Finished finitePrefix Result has 290512 conditions, 12584 events. 5039/12584 cut-off events. For 743291/753589 co-relation queries the response was YES. Maximal size of possible extension queue 782. Compared 124968 event pairs, 140 based on Foata normal form. 86/11728 useless extension candidates. Maximal degree in co-relation 262376. Up to 7698 conditions per place. [2025-03-14 22:43:06,939 INFO L140 encePairwiseOnDemand]: 184/199 looper letters, 3616 selfloop transitions, 114 changer transitions 554/4402 dead transitions. [2025-03-14 22:43:06,939 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 876 places, 4402 transitions, 310580 flow [2025-03-14 22:43:06,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-03-14 22:43:06,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2025-03-14 22:43:06,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1971 transitions. [2025-03-14 22:43:06,940 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.6603015075376885 [2025-03-14 22:43:06,940 INFO L298 CegarLoopForPetriNet]: 197 programPoint places, 679 predicate places. [2025-03-14 22:43:06,941 INFO L471 AbstractCegarLoop]: Abstraction has has 876 places, 4402 transitions, 310580 flow [2025-03-14 22:43:06,941 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 126.8) internal successors, (1268), 10 states have internal predecessors, (1268), 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) [2025-03-14 22:43:06,941 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-14 22:43:06,941 INFO L221 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-14 22:43:06,946 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Forceful destruction successful, exit code 0 [2025-03-14 22:43:07,141 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2025-03-14 22:43:07,142 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err5INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2025-03-14 22:43:07,142 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 22:43:07,143 INFO L85 PathProgramCache]: Analyzing trace with hash 1563813480, now seen corresponding path program 1 times [2025-03-14 22:43:07,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 22:43:07,143 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1334907840] [2025-03-14 22:43:07,143 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-14 22:43:07,143 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 22:43:07,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 22:43:07,495 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-14 22:43:07,495 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 22:43:07,495 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1334907840] [2025-03-14 22:43:07,495 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1334907840] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-14 22:43:07,495 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1732960759] [2025-03-14 22:43:07,495 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-14 22:43:07,495 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-14 22:43:07,495 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-14 22:43:07,497 INFO L229 MonitoredProcess]: Starting monitored process 29 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-14 22:43:07,498 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2025-03-14 22:43:07,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 22:43:07,580 INFO L256 TraceCheckSpWp]: Trace formula consists of 394 conjuncts, 29 conjuncts are in the unsatisfiable core [2025-03-14 22:43:07,582 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-14 22:43:07,686 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2025-03-14 22:43:07,731 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2025-03-14 22:43:07,731 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-14 22:43:07,732 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1732960759] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 22:43:07,732 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-14 22:43:07,732 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [18] total 21 [2025-03-14 22:43:07,732 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [687410263] [2025-03-14 22:43:07,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 22:43:07,732 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-03-14 22:43:07,732 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 22:43:07,732 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-03-14 22:43:07,733 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=364, Unknown=0, NotChecked=0, Total=420 [2025-03-14 22:43:07,733 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 121 out of 199 [2025-03-14 22:43:07,733 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 876 places, 4402 transitions, 310580 flow. Second operand has 10 states, 10 states have (on average 126.8) internal successors, (1268), 10 states have internal predecessors, (1268), 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) [2025-03-14 22:43:07,733 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 22:43:07,733 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 121 of 199 [2025-03-14 22:43:07,733 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 22:43:25,965 INFO L124 PetriNetUnfolderBase]: 5147/12878 cut-off events. [2025-03-14 22:43:25,965 INFO L125 PetriNetUnfolderBase]: For 799392/809297 co-relation queries the response was YES. [2025-03-14 22:43:25,992 INFO L83 FinitePrefix]: Finished finitePrefix Result has 304719 conditions, 12878 events. 5147/12878 cut-off events. For 799392/809297 co-relation queries the response was YES. Maximal size of possible extension queue 804. Compared 128338 event pairs, 130 based on Foata normal form. 63/11969 useless extension candidates. Maximal degree in co-relation 275411. Up to 7861 conditions per place. [2025-03-14 22:43:26,442 INFO L140 encePairwiseOnDemand]: 184/199 looper letters, 3699 selfloop transitions, 124 changer transitions 574/4515 dead transitions. [2025-03-14 22:43:26,442 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 890 places, 4515 transitions, 327522 flow [2025-03-14 22:43:26,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-03-14 22:43:26,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2025-03-14 22:43:26,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1968 transitions. [2025-03-14 22:43:26,443 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.6592964824120603 [2025-03-14 22:43:26,443 INFO L298 CegarLoopForPetriNet]: 197 programPoint places, 693 predicate places. [2025-03-14 22:43:26,443 INFO L471 AbstractCegarLoop]: Abstraction has has 890 places, 4515 transitions, 327522 flow [2025-03-14 22:43:26,444 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 126.8) internal successors, (1268), 10 states have internal predecessors, (1268), 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) [2025-03-14 22:43:26,444 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-14 22:43:26,444 INFO L221 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-14 22:43:26,449 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Forceful destruction successful, exit code 0 [2025-03-14 22:43:26,644 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35,29 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-14 22:43:26,644 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err5INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2025-03-14 22:43:26,645 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 22:43:26,645 INFO L85 PathProgramCache]: Analyzing trace with hash -600317163, now seen corresponding path program 3 times [2025-03-14 22:43:26,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 22:43:26,645 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1283609934] [2025-03-14 22:43:26,645 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-14 22:43:26,646 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 22:43:26,656 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2025-03-14 22:43:26,657 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2025-03-14 22:43:26,850 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2025-03-14 22:43:26,850 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 22:43:26,850 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1283609934] [2025-03-14 22:43:26,850 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1283609934] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-14 22:43:26,850 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1509204637] [2025-03-14 22:43:26,850 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-14 22:43:26,850 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-14 22:43:26,851 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-14 22:43:26,852 INFO L229 MonitoredProcess]: Starting monitored process 30 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-14 22:43:26,854 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2025-03-14 22:43:26,929 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2025-03-14 22:43:26,929 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2025-03-14 22:43:26,930 INFO L256 TraceCheckSpWp]: Trace formula consists of 380 conjuncts, 29 conjuncts are in the unsatisfiable core [2025-03-14 22:43:26,931 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-14 22:43:27,078 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2025-03-14 22:43:27,094 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2025-03-14 22:43:27,094 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-14 22:43:27,173 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-03-14 22:43:27,173 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 20 treesize of output 14 [2025-03-14 22:43:27,205 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2025-03-14 22:43:27,205 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1509204637] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-14 22:43:27,205 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-14 22:43:27,205 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 10, 10] total 20 [2025-03-14 22:43:27,206 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [515307325] [2025-03-14 22:43:27,206 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-14 22:43:27,206 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2025-03-14 22:43:27,206 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 22:43:27,206 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2025-03-14 22:43:27,206 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=324, Unknown=0, NotChecked=0, Total=380 [2025-03-14 22:43:27,207 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 199 [2025-03-14 22:43:27,208 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 890 places, 4515 transitions, 327522 flow. Second operand has 20 states, 20 states have (on average 122.1) internal successors, (2442), 20 states have internal predecessors, (2442), 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) [2025-03-14 22:43:27,208 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 22:43:27,208 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 199 [2025-03-14 22:43:27,208 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 22:43:48,350 INFO L124 PetriNetUnfolderBase]: 5331/13356 cut-off events. [2025-03-14 22:43:48,351 INFO L125 PetriNetUnfolderBase]: For 887173/899098 co-relation queries the response was YES. [2025-03-14 22:43:48,375 INFO L83 FinitePrefix]: Finished finitePrefix Result has 323760 conditions, 13356 events. 5331/13356 cut-off events. For 887173/899098 co-relation queries the response was YES. Maximal size of possible extension queue 840. Compared 134562 event pairs, 134 based on Foata normal form. 131/12471 useless extension candidates. Maximal degree in co-relation 293027. Up to 8140 conditions per place. [2025-03-14 22:43:48,653 INFO L140 encePairwiseOnDemand]: 183/199 looper letters, 3723 selfloop transitions, 254 changer transitions 589/4681 dead transitions. [2025-03-14 22:43:48,653 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 914 places, 4681 transitions, 348989 flow [2025-03-14 22:43:48,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2025-03-14 22:43:48,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2025-03-14 22:43:48,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 3174 transitions. [2025-03-14 22:43:48,655 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.6379899497487437 [2025-03-14 22:43:48,655 INFO L298 CegarLoopForPetriNet]: 197 programPoint places, 717 predicate places. [2025-03-14 22:43:48,655 INFO L471 AbstractCegarLoop]: Abstraction has has 914 places, 4681 transitions, 348989 flow [2025-03-14 22:43:48,656 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 122.1) internal successors, (2442), 20 states have internal predecessors, (2442), 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) [2025-03-14 22:43:48,656 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-14 22:43:48,656 INFO L221 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-14 22:43:48,661 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Ended with exit code 0 [2025-03-14 22:43:48,856 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2025-03-14 22:43:48,856 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err5INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2025-03-14 22:43:48,857 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 22:43:48,857 INFO L85 PathProgramCache]: Analyzing trace with hash 1741783090, now seen corresponding path program 2 times [2025-03-14 22:43:48,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 22:43:48,857 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1910137191] [2025-03-14 22:43:48,857 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-14 22:43:48,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 22:43:48,868 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-14 22:43:48,869 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2025-03-14 22:43:49,019 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2025-03-14 22:43:49,019 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 22:43:49,019 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1910137191] [2025-03-14 22:43:49,019 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1910137191] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 22:43:49,019 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-14 22:43:49,019 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2025-03-14 22:43:49,019 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [173301131] [2025-03-14 22:43:49,019 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 22:43:49,019 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-03-14 22:43:49,020 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 22:43:49,020 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-03-14 22:43:49,020 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2025-03-14 22:43:49,020 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 121 out of 199 [2025-03-14 22:43:49,021 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 914 places, 4681 transitions, 348989 flow. Second operand has 10 states, 10 states have (on average 126.8) internal successors, (1268), 10 states have internal predecessors, (1268), 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) [2025-03-14 22:43:49,021 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 22:43:49,021 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 121 of 199 [2025-03-14 22:43:49,021 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 22:44:09,773 INFO L124 PetriNetUnfolderBase]: 5441/13693 cut-off events. [2025-03-14 22:44:09,773 INFO L125 PetriNetUnfolderBase]: For 978366/991573 co-relation queries the response was YES. [2025-03-14 22:44:09,795 INFO L83 FinitePrefix]: Finished finitePrefix Result has 338987 conditions, 13693 events. 5441/13693 cut-off events. For 978366/991573 co-relation queries the response was YES. Maximal size of possible extension queue 861. Compared 139177 event pairs, 140 based on Foata normal form. 120/12759 useless extension candidates. Maximal degree in co-relation 306971. Up to 8308 conditions per place. [2025-03-14 22:44:10,228 INFO L140 encePairwiseOnDemand]: 184/199 looper letters, 3883 selfloop transitions, 184 changer transitions 604/4789 dead transitions. [2025-03-14 22:44:10,228 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 930 places, 4789 transitions, 366554 flow [2025-03-14 22:44:10,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2025-03-14 22:44:10,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2025-03-14 22:44:10,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 2227 transitions. [2025-03-14 22:44:10,229 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.6582914572864321 [2025-03-14 22:44:10,229 INFO L298 CegarLoopForPetriNet]: 197 programPoint places, 733 predicate places. [2025-03-14 22:44:10,230 INFO L471 AbstractCegarLoop]: Abstraction has has 930 places, 4789 transitions, 366554 flow [2025-03-14 22:44:10,230 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 126.8) internal successors, (1268), 10 states have internal predecessors, (1268), 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) [2025-03-14 22:44:10,230 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-14 22:44:10,230 INFO L221 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-14 22:44:10,230 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2025-03-14 22:44:10,230 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err5INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2025-03-14 22:44:10,231 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 22:44:10,231 INFO L85 PathProgramCache]: Analyzing trace with hash 786719702, now seen corresponding path program 3 times [2025-03-14 22:44:10,231 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 22:44:10,231 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [624579474] [2025-03-14 22:44:10,231 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-14 22:44:10,231 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 22:44:10,241 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2025-03-14 22:44:10,242 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2025-03-14 22:44:10,455 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2025-03-14 22:44:10,455 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 22:44:10,455 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [624579474] [2025-03-14 22:44:10,455 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [624579474] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-14 22:44:10,455 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1146843752] [2025-03-14 22:44:10,455 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-14 22:44:10,455 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-14 22:44:10,455 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-14 22:44:10,457 INFO L229 MonitoredProcess]: Starting monitored process 31 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-14 22:44:10,459 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2025-03-14 22:44:10,539 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2025-03-14 22:44:10,539 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2025-03-14 22:44:10,541 INFO L256 TraceCheckSpWp]: Trace formula consists of 380 conjuncts, 29 conjuncts are in the unsatisfiable core [2025-03-14 22:44:10,542 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-14 22:44:10,642 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2025-03-14 22:44:10,675 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2025-03-14 22:44:10,675 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-14 22:44:10,744 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-03-14 22:44:10,744 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 20 treesize of output 14 [2025-03-14 22:44:10,775 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2025-03-14 22:44:10,775 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1146843752] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-14 22:44:10,775 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-14 22:44:10,775 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 10, 10] total 20 [2025-03-14 22:44:10,775 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [993928122] [2025-03-14 22:44:10,776 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-14 22:44:10,776 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2025-03-14 22:44:10,776 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 22:44:10,776 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2025-03-14 22:44:10,776 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=317, Unknown=0, NotChecked=0, Total=380 [2025-03-14 22:44:10,777 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 199 [2025-03-14 22:44:10,778 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 930 places, 4789 transitions, 366554 flow. Second operand has 20 states, 20 states have (on average 121.95) internal successors, (2439), 20 states have internal predecessors, (2439), 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) [2025-03-14 22:44:10,778 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 22:44:10,778 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 199 [2025-03-14 22:44:10,778 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 22:44:34,321 INFO L124 PetriNetUnfolderBase]: 5549/13856 cut-off events. [2025-03-14 22:44:34,322 INFO L125 PetriNetUnfolderBase]: For 1018584/1030792 co-relation queries the response was YES. [2025-03-14 22:44:34,346 INFO L83 FinitePrefix]: Finished finitePrefix Result has 354189 conditions, 13856 events. 5549/13856 cut-off events. For 1018584/1030792 co-relation queries the response was YES. Maximal size of possible extension queue 883. Compared 140333 event pairs, 155 based on Foata normal form. 95/12900 useless extension candidates. Maximal degree in co-relation 324134. Up to 8471 conditions per place. [2025-03-14 22:44:34,661 INFO L140 encePairwiseOnDemand]: 184/199 looper letters, 3912 selfloop transitions, 251 changer transitions 624/4902 dead transitions. [2025-03-14 22:44:34,661 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 952 places, 4902 transitions, 384954 flow [2025-03-14 22:44:34,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2025-03-14 22:44:34,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2025-03-14 22:44:34,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 2917 transitions. [2025-03-14 22:44:34,663 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.6373170198820188 [2025-03-14 22:44:34,663 INFO L298 CegarLoopForPetriNet]: 197 programPoint places, 755 predicate places. [2025-03-14 22:44:34,663 INFO L471 AbstractCegarLoop]: Abstraction has has 952 places, 4902 transitions, 384954 flow [2025-03-14 22:44:34,663 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 121.95) internal successors, (2439), 20 states have internal predecessors, (2439), 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) [2025-03-14 22:44:34,663 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-14 22:44:34,664 INFO L221 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-14 22:44:34,670 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Ended with exit code 0 [2025-03-14 22:44:34,864 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2025-03-14 22:44:34,864 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err5INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2025-03-14 22:44:34,865 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 22:44:34,865 INFO L85 PathProgramCache]: Analyzing trace with hash 399660782, now seen corresponding path program 2 times [2025-03-14 22:44:34,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 22:44:34,865 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [575281453] [2025-03-14 22:44:34,865 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-14 22:44:34,865 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 22:44:34,876 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-14 22:44:34,876 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2025-03-14 22:44:35,049 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2025-03-14 22:44:35,049 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 22:44:35,049 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [575281453] [2025-03-14 22:44:35,049 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [575281453] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-14 22:44:35,049 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [352352977] [2025-03-14 22:44:35,049 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-14 22:44:35,049 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-14 22:44:35,049 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-14 22:44:35,051 INFO L229 MonitoredProcess]: Starting monitored process 32 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-14 22:44:35,052 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2025-03-14 22:44:35,130 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-14 22:44:35,130 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2025-03-14 22:44:35,131 INFO L256 TraceCheckSpWp]: Trace formula consists of 394 conjuncts, 55 conjuncts are in the unsatisfiable core [2025-03-14 22:44:35,133 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-14 22:44:35,187 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2025-03-14 22:44:35,392 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2025-03-14 22:44:35,416 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-14 22:44:35,417 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-14 22:44:35,538 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2025-03-14 22:44:35,539 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [352352977] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-14 22:44:35,539 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-14 22:44:35,539 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 18, 10] total 28 [2025-03-14 22:44:35,539 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1494703316] [2025-03-14 22:44:35,539 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-14 22:44:35,539 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2025-03-14 22:44:35,540 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 22:44:35,540 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2025-03-14 22:44:35,540 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=673, Unknown=0, NotChecked=0, Total=756 [2025-03-14 22:44:35,541 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 103 out of 199 [2025-03-14 22:44:35,542 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 952 places, 4902 transitions, 384954 flow. Second operand has 28 states, 28 states have (on average 107.14285714285714) internal successors, (3000), 28 states have internal predecessors, (3000), 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) [2025-03-14 22:44:35,542 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 22:44:35,542 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 103 of 199 [2025-03-14 22:44:35,542 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 22:44:59,420 INFO L124 PetriNetUnfolderBase]: 5657/14155 cut-off events. [2025-03-14 22:44:59,420 INFO L125 PetriNetUnfolderBase]: For 1111192/1126310 co-relation queries the response was YES. [2025-03-14 22:44:59,444 INFO L83 FinitePrefix]: Finished finitePrefix Result has 369894 conditions, 14155 events. 5657/14155 cut-off events. For 1111192/1126310 co-relation queries the response was YES. Maximal size of possible extension queue 908. Compared 143930 event pairs, 141 based on Foata normal form. 137/13210 useless extension candidates. Maximal degree in co-relation 338857. Up to 8634 conditions per place. [2025-03-14 22:44:59,775 INFO L140 encePairwiseOnDemand]: 171/199 looper letters, 4100 selfloop transitions, 177 changer transitions 644/5015 dead transitions. [2025-03-14 22:44:59,775 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 981 places, 5015 transitions, 403860 flow [2025-03-14 22:44:59,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2025-03-14 22:44:59,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2025-03-14 22:44:59,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 3291 transitions. [2025-03-14 22:44:59,777 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.5512562814070352 [2025-03-14 22:44:59,777 INFO L298 CegarLoopForPetriNet]: 197 programPoint places, 784 predicate places. [2025-03-14 22:44:59,777 INFO L471 AbstractCegarLoop]: Abstraction has has 981 places, 5015 transitions, 403860 flow [2025-03-14 22:44:59,778 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 107.14285714285714) internal successors, (3000), 28 states have internal predecessors, (3000), 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) [2025-03-14 22:44:59,778 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-14 22:44:59,778 INFO L221 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-14 22:44:59,785 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Ended with exit code 0 [2025-03-14 22:44:59,978 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2025-03-14 22:44:59,979 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err5INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2025-03-14 22:44:59,980 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 22:44:59,980 INFO L85 PathProgramCache]: Analyzing trace with hash 478582518, now seen corresponding path program 3 times [2025-03-14 22:44:59,980 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 22:44:59,980 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1745732074] [2025-03-14 22:44:59,980 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-14 22:44:59,980 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 22:44:59,991 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-03-14 22:44:59,991 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2025-03-14 22:45:00,140 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2025-03-14 22:45:00,140 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 22:45:00,140 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1745732074] [2025-03-14 22:45:00,140 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1745732074] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 22:45:00,140 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-14 22:45:00,140 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2025-03-14 22:45:00,140 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [797905105] [2025-03-14 22:45:00,140 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 22:45:00,140 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-03-14 22:45:00,141 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 22:45:00,141 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-03-14 22:45:00,141 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2025-03-14 22:45:00,141 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 121 out of 199 [2025-03-14 22:45:00,142 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 981 places, 5015 transitions, 403860 flow. Second operand has 10 states, 10 states have (on average 126.8) internal successors, (1268), 10 states have internal predecessors, (1268), 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) [2025-03-14 22:45:00,142 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 22:45:00,142 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 121 of 199 [2025-03-14 22:45:00,142 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 22:45:27,790 INFO L124 PetriNetUnfolderBase]: 5767/14410 cut-off events. [2025-03-14 22:45:27,790 INFO L125 PetriNetUnfolderBase]: For 1176393/1190141 co-relation queries the response was YES. [2025-03-14 22:45:27,813 INFO L83 FinitePrefix]: Finished finitePrefix Result has 386061 conditions, 14410 events. 5767/14410 cut-off events. For 1176393/1190141 co-relation queries the response was YES. Maximal size of possible extension queue 927. Compared 147481 event pairs, 124 based on Foata normal form. 108/13409 useless extension candidates. Maximal degree in co-relation 350156. Up to 8802 conditions per place. [2025-03-14 22:45:28,133 INFO L140 encePairwiseOnDemand]: 184/199 looper letters, 4195 selfloop transitions, 151 changer transitions 659/5123 dead transitions. [2025-03-14 22:45:28,133 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 995 places, 5123 transitions, 422741 flow [2025-03-14 22:45:28,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-03-14 22:45:28,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2025-03-14 22:45:28,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1975 transitions. [2025-03-14 22:45:28,134 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.661641541038526 [2025-03-14 22:45:28,135 INFO L298 CegarLoopForPetriNet]: 197 programPoint places, 798 predicate places. [2025-03-14 22:45:28,135 INFO L471 AbstractCegarLoop]: Abstraction has has 995 places, 5123 transitions, 422741 flow [2025-03-14 22:45:28,135 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 126.8) internal successors, (1268), 10 states have internal predecessors, (1268), 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) [2025-03-14 22:45:28,135 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-14 22:45:28,135 INFO L221 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-14 22:45:28,135 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2025-03-14 22:45:28,135 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err5INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2025-03-14 22:45:28,136 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 22:45:28,136 INFO L85 PathProgramCache]: Analyzing trace with hash -1448937325, now seen corresponding path program 4 times [2025-03-14 22:45:28,136 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 22:45:28,136 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1309713318] [2025-03-14 22:45:28,136 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-03-14 22:45:28,136 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 22:45:28,149 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2025-03-14 22:45:28,149 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2025-03-14 22:45:28,540 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-14 22:45:28,540 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 22:45:28,540 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1309713318] [2025-03-14 22:45:28,540 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1309713318] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-14 22:45:28,540 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [612305077] [2025-03-14 22:45:28,541 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-03-14 22:45:28,541 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-14 22:45:28,541 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-14 22:45:28,542 INFO L229 MonitoredProcess]: Starting monitored process 33 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-14 22:45:28,543 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process [2025-03-14 22:45:28,620 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2025-03-14 22:45:28,620 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2025-03-14 22:45:28,621 INFO L256 TraceCheckSpWp]: Trace formula consists of 394 conjuncts, 45 conjuncts are in the unsatisfiable core [2025-03-14 22:45:28,623 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-14 22:45:28,757 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2025-03-14 22:45:28,797 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-03-14 22:45:28,797 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-14 22:45:28,860 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-03-14 22:45:28,860 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 16 [2025-03-14 22:45:28,908 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2025-03-14 22:45:28,908 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [612305077] provided 1 perfect and 1 imperfect interpolant sequences [2025-03-14 22:45:28,908 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2025-03-14 22:45:28,908 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [18, 17] total 23 [2025-03-14 22:45:28,908 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1669326456] [2025-03-14 22:45:28,908 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 22:45:28,909 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-03-14 22:45:28,909 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 22:45:28,909 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-03-14 22:45:28,909 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=446, Unknown=0, NotChecked=0, Total=506 [2025-03-14 22:45:28,909 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 121 out of 199 [2025-03-14 22:45:28,910 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 995 places, 5123 transitions, 422741 flow. Second operand has 10 states, 10 states have (on average 126.8) internal successors, (1268), 10 states have internal predecessors, (1268), 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) [2025-03-14 22:45:28,910 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 22:45:28,910 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 121 of 199 [2025-03-14 22:45:28,910 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 22:45:58,138 INFO L124 PetriNetUnfolderBase]: 5875/14623 cut-off events. [2025-03-14 22:45:58,139 INFO L125 PetriNetUnfolderBase]: For 1239379/1253250 co-relation queries the response was YES. [2025-03-14 22:45:58,166 INFO L83 FinitePrefix]: Finished finitePrefix Result has 402317 conditions, 14623 events. 5875/14623 cut-off events. For 1239379/1253250 co-relation queries the response was YES. Maximal size of possible extension queue 945. Compared 149628 event pairs, 166 based on Foata normal form. 123/13625 useless extension candidates. Maximal degree in co-relation 369457. Up to 8965 conditions per place. [2025-03-14 22:45:58,527 INFO L140 encePairwiseOnDemand]: 184/199 looper letters, 4282 selfloop transitions, 157 changer transitions 679/5236 dead transitions. [2025-03-14 22:45:58,527 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1009 places, 5236 transitions, 442481 flow [2025-03-14 22:45:58,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-03-14 22:45:58,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2025-03-14 22:45:58,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1972 transitions. [2025-03-14 22:45:58,528 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.6606365159128978 [2025-03-14 22:45:58,529 INFO L298 CegarLoopForPetriNet]: 197 programPoint places, 812 predicate places. [2025-03-14 22:45:58,529 INFO L471 AbstractCegarLoop]: Abstraction has has 1009 places, 5236 transitions, 442481 flow [2025-03-14 22:45:58,529 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 126.8) internal successors, (1268), 10 states have internal predecessors, (1268), 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) [2025-03-14 22:45:58,529 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-14 22:45:58,529 INFO L221 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-14 22:45:58,535 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Ended with exit code 0 [2025-03-14 22:45:58,729 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41,33 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-14 22:45:58,730 INFO L396 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err5INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2025-03-14 22:45:58,731 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 22:45:58,731 INFO L85 PathProgramCache]: Analyzing trace with hash 1842680095, now seen corresponding path program 4 times [2025-03-14 22:45:58,731 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 22:45:58,731 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1326619867] [2025-03-14 22:45:58,731 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-03-14 22:45:58,731 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 22:45:58,743 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2025-03-14 22:45:58,743 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2025-03-14 22:45:59,040 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-14 22:45:59,040 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 22:45:59,040 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1326619867] [2025-03-14 22:45:59,040 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1326619867] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-14 22:45:59,040 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [428353859] [2025-03-14 22:45:59,040 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-03-14 22:45:59,040 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-14 22:45:59,041 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-14 22:45:59,042 INFO L229 MonitoredProcess]: Starting monitored process 34 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-14 22:45:59,043 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Waiting until timeout for monitored process [2025-03-14 22:45:59,122 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2025-03-14 22:45:59,122 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2025-03-14 22:45:59,123 INFO L256 TraceCheckSpWp]: Trace formula consists of 394 conjuncts, 45 conjuncts are in the unsatisfiable core [2025-03-14 22:45:59,125 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-14 22:45:59,465 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2025-03-14 22:45:59,474 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-03-14 22:45:59,475 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-14 22:45:59,556 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-03-14 22:45:59,556 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 16 [2025-03-14 22:45:59,599 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2025-03-14 22:45:59,600 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [428353859] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-14 22:45:59,600 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-14 22:45:59,600 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 17, 10] total 29 [2025-03-14 22:45:59,600 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1342224468] [2025-03-14 22:45:59,600 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-14 22:45:59,600 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2025-03-14 22:45:59,601 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 22:45:59,601 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2025-03-14 22:45:59,601 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=722, Unknown=0, NotChecked=0, Total=812 [2025-03-14 22:45:59,602 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 103 out of 199 [2025-03-14 22:45:59,603 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1009 places, 5236 transitions, 442481 flow. Second operand has 29 states, 29 states have (on average 107.48275862068965) internal successors, (3117), 29 states have internal predecessors, (3117), 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) [2025-03-14 22:45:59,603 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 22:45:59,603 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 103 of 199 [2025-03-14 22:45:59,603 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 22:46:29,442 INFO L124 PetriNetUnfolderBase]: 5983/15076 cut-off events. [2025-03-14 22:46:29,442 INFO L125 PetriNetUnfolderBase]: For 1391682/1408564 co-relation queries the response was YES. [2025-03-14 22:46:29,468 INFO L83 FinitePrefix]: Finished finitePrefix Result has 419272 conditions, 15076 events. 5983/15076 cut-off events. For 1391682/1408564 co-relation queries the response was YES. Maximal size of possible extension queue 973. Compared 156428 event pairs, 152 based on Foata normal form. 103/13996 useless extension candidates. Maximal degree in co-relation 385408. Up to 9130 conditions per place. [2025-03-14 22:46:29,834 INFO L140 encePairwiseOnDemand]: 171/199 looper letters, 4383 selfloop transitions, 170 changer transitions 694/5341 dead transitions. [2025-03-14 22:46:29,835 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1039 places, 5341 transitions, 462032 flow [2025-03-14 22:46:29,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2025-03-14 22:46:29,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2025-03-14 22:46:29,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 3402 transitions. [2025-03-14 22:46:29,837 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.5514670124817637 [2025-03-14 22:46:29,838 INFO L298 CegarLoopForPetriNet]: 197 programPoint places, 842 predicate places. [2025-03-14 22:46:29,838 INFO L471 AbstractCegarLoop]: Abstraction has has 1039 places, 5341 transitions, 462032 flow [2025-03-14 22:46:29,838 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 107.48275862068965) internal successors, (3117), 29 states have internal predecessors, (3117), 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) [2025-03-14 22:46:29,838 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-14 22:46:29,838 INFO L221 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-14 22:46:29,845 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Ended with exit code 0 [2025-03-14 22:46:30,039 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable42 [2025-03-14 22:46:30,039 INFO L396 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err5INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2025-03-14 22:46:30,040 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 22:46:30,040 INFO L85 PathProgramCache]: Analyzing trace with hash -1441885512, now seen corresponding path program 4 times [2025-03-14 22:46:30,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 22:46:30,040 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1560467074] [2025-03-14 22:46:30,040 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-03-14 22:46:30,040 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 22:46:30,051 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2025-03-14 22:46:30,051 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2025-03-14 22:46:30,330 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-14 22:46:30,330 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 22:46:30,330 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1560467074] [2025-03-14 22:46:30,330 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1560467074] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-14 22:46:30,330 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1273305425] [2025-03-14 22:46:30,330 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-03-14 22:46:30,330 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-14 22:46:30,330 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-14 22:46:30,332 INFO L229 MonitoredProcess]: Starting monitored process 35 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-14 22:46:30,333 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Waiting until timeout for monitored process [2025-03-14 22:46:30,410 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2025-03-14 22:46:30,411 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2025-03-14 22:46:30,412 INFO L256 TraceCheckSpWp]: Trace formula consists of 394 conjuncts, 39 conjuncts are in the unsatisfiable core [2025-03-14 22:46:30,413 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-14 22:46:30,671 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2025-03-14 22:46:30,694 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2025-03-14 22:46:30,694 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-14 22:46:30,766 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-03-14 22:46:30,766 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 16 [2025-03-14 22:46:30,807 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2025-03-14 22:46:30,807 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1273305425] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-14 22:46:30,807 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-14 22:46:30,808 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 15, 10] total 25 [2025-03-14 22:46:30,808 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [227280293] [2025-03-14 22:46:30,808 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-14 22:46:30,808 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2025-03-14 22:46:30,808 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 22:46:30,808 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2025-03-14 22:46:30,809 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=530, Unknown=0, NotChecked=0, Total=600 [2025-03-14 22:46:30,809 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 103 out of 199 [2025-03-14 22:46:30,810 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1039 places, 5341 transitions, 462032 flow. Second operand has 25 states, 25 states have (on average 107.76) internal successors, (2694), 25 states have internal predecessors, (2694), 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) [2025-03-14 22:46:30,810 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 22:46:30,810 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 103 of 199 [2025-03-14 22:46:30,810 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 22:47:04,523 INFO L124 PetriNetUnfolderBase]: 6091/15264 cut-off events. [2025-03-14 22:47:04,523 INFO L125 PetriNetUnfolderBase]: For 1480641/1499944 co-relation queries the response was YES. [2025-03-14 22:47:04,550 INFO L83 FinitePrefix]: Finished finitePrefix Result has 436209 conditions, 15264 events. 6091/15264 cut-off events. For 1480641/1499944 co-relation queries the response was YES. Maximal size of possible extension queue 997. Compared 158395 event pairs, 170 based on Foata normal form. 131/14209 useless extension candidates. Maximal degree in co-relation 401350. Up to 9293 conditions per place. [2025-03-14 22:47:04,917 INFO L140 encePairwiseOnDemand]: 171/199 looper letters, 4476 selfloop transitions, 170 changer transitions 714/5454 dead transitions. [2025-03-14 22:47:04,917 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1068 places, 5454 transitions, 482720 flow [2025-03-14 22:47:04,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2025-03-14 22:47:04,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2025-03-14 22:47:04,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 3280 transitions. [2025-03-14 22:47:04,919 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.5494137353433836 [2025-03-14 22:47:04,919 INFO L298 CegarLoopForPetriNet]: 197 programPoint places, 871 predicate places. [2025-03-14 22:47:04,920 INFO L471 AbstractCegarLoop]: Abstraction has has 1068 places, 5454 transitions, 482720 flow [2025-03-14 22:47:04,920 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 107.76) internal successors, (2694), 25 states have internal predecessors, (2694), 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) [2025-03-14 22:47:04,920 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-14 22:47:04,920 INFO L221 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-14 22:47:04,926 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Forceful destruction successful, exit code 0 [2025-03-14 22:47:05,120 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43,35 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-14 22:47:05,121 INFO L396 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err5INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2025-03-14 22:47:05,122 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 22:47:05,122 INFO L85 PathProgramCache]: Analyzing trace with hash -20569080, now seen corresponding path program 5 times [2025-03-14 22:47:05,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 22:47:05,122 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [244015528] [2025-03-14 22:47:05,122 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-03-14 22:47:05,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 22:47:05,134 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2025-03-14 22:47:05,134 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2025-03-14 22:47:05,627 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-14 22:47:05,627 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 22:47:05,627 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [244015528] [2025-03-14 22:47:05,627 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [244015528] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-14 22:47:05,627 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1543325676] [2025-03-14 22:47:05,627 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-03-14 22:47:05,627 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-14 22:47:05,627 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-14 22:47:05,629 INFO L229 MonitoredProcess]: Starting monitored process 36 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-14 22:47:05,630 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Waiting until timeout for monitored process [2025-03-14 22:47:05,706 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2025-03-14 22:47:05,706 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2025-03-14 22:47:05,707 INFO L256 TraceCheckSpWp]: Trace formula consists of 394 conjuncts, 29 conjuncts are in the unsatisfiable core [2025-03-14 22:47:05,709 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-14 22:47:05,847 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2025-03-14 22:47:05,897 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2025-03-14 22:47:05,898 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-14 22:47:05,898 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1543325676] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 22:47:05,898 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-14 22:47:05,898 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [18] total 21 [2025-03-14 22:47:05,898 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1877201516] [2025-03-14 22:47:05,898 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 22:47:05,898 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-03-14 22:47:05,898 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 22:47:05,899 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-03-14 22:47:05,899 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=361, Unknown=0, NotChecked=0, Total=420 [2025-03-14 22:47:05,899 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 121 out of 199 [2025-03-14 22:47:05,899 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1068 places, 5454 transitions, 482720 flow. Second operand has 10 states, 10 states have (on average 126.8) internal successors, (1268), 10 states have internal predecessors, (1268), 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) [2025-03-14 22:47:05,899 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 22:47:05,900 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 121 of 199 [2025-03-14 22:47:05,900 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 22:47:37,367 INFO L124 PetriNetUnfolderBase]: 6199/15563 cut-off events. [2025-03-14 22:47:37,368 INFO L125 PetriNetUnfolderBase]: For 1579447/1598481 co-relation queries the response was YES. [2025-03-14 22:47:37,396 INFO L83 FinitePrefix]: Finished finitePrefix Result has 453648 conditions, 15563 events. 6199/15563 cut-off events. For 1579447/1598481 co-relation queries the response was YES. Maximal size of possible extension queue 1014. Compared 162247 event pairs, 149 based on Foata normal form. 105/14447 useless extension candidates. Maximal degree in co-relation 417819. Up to 9458 conditions per place. [2025-03-14 22:47:37,786 INFO L140 encePairwiseOnDemand]: 184/199 looper letters, 4563 selfloop transitions, 149 changer transitions 729/5559 dead transitions. [2025-03-14 22:47:37,786 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1082 places, 5559 transitions, 503067 flow [2025-03-14 22:47:37,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-03-14 22:47:37,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2025-03-14 22:47:37,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1974 transitions. [2025-03-14 22:47:37,787 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.6613065326633166 [2025-03-14 22:47:37,788 INFO L298 CegarLoopForPetriNet]: 197 programPoint places, 885 predicate places. [2025-03-14 22:47:37,788 INFO L471 AbstractCegarLoop]: Abstraction has has 1082 places, 5559 transitions, 503067 flow [2025-03-14 22:47:37,788 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 126.8) internal successors, (1268), 10 states have internal predecessors, (1268), 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) [2025-03-14 22:47:37,788 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-14 22:47:37,788 INFO L221 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-14 22:47:37,794 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Ended with exit code 0 [2025-03-14 22:47:37,988 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable44 [2025-03-14 22:47:37,988 INFO L396 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err5INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2025-03-14 22:47:37,989 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 22:47:37,989 INFO L85 PathProgramCache]: Analyzing trace with hash 1548276498, now seen corresponding path program 4 times [2025-03-14 22:47:37,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 22:47:37,990 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1213818734] [2025-03-14 22:47:37,990 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-03-14 22:47:37,990 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 22:47:38,000 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2025-03-14 22:47:38,000 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2025-03-14 22:47:38,450 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-14 22:47:38,450 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 22:47:38,450 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1213818734] [2025-03-14 22:47:38,450 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1213818734] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-14 22:47:38,450 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [251913553] [2025-03-14 22:47:38,450 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-03-14 22:47:38,451 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-14 22:47:38,451 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-14 22:47:38,452 INFO L229 MonitoredProcess]: Starting monitored process 37 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-14 22:47:38,454 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Waiting until timeout for monitored process [2025-03-14 22:47:38,533 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2025-03-14 22:47:38,533 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2025-03-14 22:47:38,534 INFO L256 TraceCheckSpWp]: Trace formula consists of 394 conjuncts, 45 conjuncts are in the unsatisfiable core [2025-03-14 22:47:38,536 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-14 22:47:38,763 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2025-03-14 22:47:38,792 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-03-14 22:47:38,792 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-14 22:47:38,878 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-03-14 22:47:38,878 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 20 treesize of output 14 [2025-03-14 22:47:38,887 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2025-03-14 22:47:38,887 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [251913553] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-14 22:47:38,887 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-14 22:47:38,887 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 17, 10] total 27 [2025-03-14 22:47:38,887 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1122608231] [2025-03-14 22:47:38,887 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-14 22:47:38,888 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2025-03-14 22:47:38,888 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 22:47:38,888 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2025-03-14 22:47:38,888 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=631, Unknown=0, NotChecked=0, Total=702 [2025-03-14 22:47:38,889 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 103 out of 199 [2025-03-14 22:47:38,890 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1082 places, 5559 transitions, 503067 flow. Second operand has 27 states, 27 states have (on average 107.5925925925926) internal successors, (2905), 27 states have internal predecessors, (2905), 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) [2025-03-14 22:47:38,890 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 22:47:38,890 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 103 of 199 [2025-03-14 22:47:38,890 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 22:48:14,419 INFO L124 PetriNetUnfolderBase]: 6307/15743 cut-off events. [2025-03-14 22:48:14,419 INFO L125 PetriNetUnfolderBase]: For 1647214/1666373 co-relation queries the response was YES. [2025-03-14 22:48:14,454 INFO L83 FinitePrefix]: Finished finitePrefix Result has 471247 conditions, 15743 events. 6307/15743 cut-off events. For 1647214/1666373 co-relation queries the response was YES. Maximal size of possible extension queue 1031. Compared 163729 event pairs, 140 based on Foata normal form. 253/14762 useless extension candidates. Maximal degree in co-relation 428356. Up to 9621 conditions per place. [2025-03-14 22:48:14,862 INFO L140 encePairwiseOnDemand]: 171/199 looper letters, 4315 selfloop transitions, 514 changer transitions 749/5672 dead transitions. [2025-03-14 22:48:14,862 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1111 places, 5672 transitions, 524643 flow [2025-03-14 22:48:14,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2025-03-14 22:48:14,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2025-03-14 22:48:14,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 3314 transitions. [2025-03-14 22:48:14,864 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.5551088777219431 [2025-03-14 22:48:14,864 INFO L298 CegarLoopForPetriNet]: 197 programPoint places, 914 predicate places. [2025-03-14 22:48:14,864 INFO L471 AbstractCegarLoop]: Abstraction has has 1111 places, 5672 transitions, 524643 flow [2025-03-14 22:48:14,865 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 107.5925925925926) internal successors, (2905), 27 states have internal predecessors, (2905), 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) [2025-03-14 22:48:14,865 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-14 22:48:14,865 INFO L221 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-14 22:48:14,872 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Ended with exit code 0 [2025-03-14 22:48:15,065 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45,37 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-14 22:48:15,066 INFO L396 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err5INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2025-03-14 22:48:15,067 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 22:48:15,067 INFO L85 PathProgramCache]: Analyzing trace with hash 1563005198, now seen corresponding path program 5 times [2025-03-14 22:48:15,067 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 22:48:15,067 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [50579803] [2025-03-14 22:48:15,067 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-03-14 22:48:15,067 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 22:48:15,081 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2025-03-14 22:48:15,081 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2025-03-14 22:48:15,619 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-14 22:48:15,619 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 22:48:15,619 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [50579803] [2025-03-14 22:48:15,619 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [50579803] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-14 22:48:15,619 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1254147989] [2025-03-14 22:48:15,619 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-03-14 22:48:15,619 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-14 22:48:15,619 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-14 22:48:15,621 INFO L229 MonitoredProcess]: Starting monitored process 38 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-14 22:48:15,622 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Waiting until timeout for monitored process [2025-03-14 22:48:15,701 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2025-03-14 22:48:15,701 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2025-03-14 22:48:15,702 INFO L256 TraceCheckSpWp]: Trace formula consists of 394 conjuncts, 29 conjuncts are in the unsatisfiable core [2025-03-14 22:48:15,704 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-14 22:48:15,823 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2025-03-14 22:48:15,853 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2025-03-14 22:48:15,853 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-14 22:48:15,853 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1254147989] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 22:48:15,853 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-14 22:48:15,853 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [18] total 22 [2025-03-14 22:48:15,853 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [20624726] [2025-03-14 22:48:15,853 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 22:48:15,854 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-03-14 22:48:15,854 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 22:48:15,854 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-03-14 22:48:15,854 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=405, Unknown=0, NotChecked=0, Total=462 [2025-03-14 22:48:15,855 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 121 out of 199 [2025-03-14 22:48:15,855 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1111 places, 5672 transitions, 524643 flow. Second operand has 10 states, 10 states have (on average 126.8) internal successors, (1268), 10 states have internal predecessors, (1268), 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) [2025-03-14 22:48:15,855 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 22:48:15,855 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 121 of 199 [2025-03-14 22:48:15,855 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 22:48:51,071 INFO L124 PetriNetUnfolderBase]: 6415/16080 cut-off events. [2025-03-14 22:48:51,071 INFO L125 PetriNetUnfolderBase]: For 1769418/1789476 co-relation queries the response was YES. [2025-03-14 22:48:51,096 INFO L83 FinitePrefix]: Finished finitePrefix Result has 489301 conditions, 16080 events. 6415/16080 cut-off events. For 1769418/1789476 co-relation queries the response was YES. Maximal size of possible extension queue 1062. Compared 168378 event pairs, 164 based on Foata normal form. 291/15111 useless extension candidates. Maximal degree in co-relation 451473. Up to 9784 conditions per place. [2025-03-14 22:48:51,512 INFO L140 encePairwiseOnDemand]: 184/199 looper letters, 4610 selfloop transitions, 288 changer transitions 769/5785 dead transitions. [2025-03-14 22:48:51,512 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1126 places, 5785 transitions, 546611 flow [2025-03-14 22:48:51,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2025-03-14 22:48:51,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2025-03-14 22:48:51,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 2110 transitions. [2025-03-14 22:48:51,513 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.6626884422110553 [2025-03-14 22:48:51,514 INFO L298 CegarLoopForPetriNet]: 197 programPoint places, 929 predicate places. [2025-03-14 22:48:51,514 INFO L471 AbstractCegarLoop]: Abstraction has has 1126 places, 5785 transitions, 546611 flow [2025-03-14 22:48:51,514 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 126.8) internal successors, (1268), 10 states have internal predecessors, (1268), 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) [2025-03-14 22:48:51,514 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-14 22:48:51,514 INFO L221 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-14 22:48:51,520 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Ended with exit code 0 [2025-03-14 22:48:51,714 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable46 [2025-03-14 22:48:51,715 INFO L396 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err5INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2025-03-14 22:48:51,715 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 22:48:51,716 INFO L85 PathProgramCache]: Analyzing trace with hash -973822405, now seen corresponding path program 5 times [2025-03-14 22:48:51,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 22:48:51,716 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [928144414] [2025-03-14 22:48:51,716 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-03-14 22:48:51,716 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 22:48:51,725 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2025-03-14 22:48:51,726 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2025-03-14 22:48:52,073 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-14 22:48:52,073 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 22:48:52,073 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [928144414] [2025-03-14 22:48:52,074 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [928144414] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-14 22:48:52,074 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1216068277] [2025-03-14 22:48:52,074 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-03-14 22:48:52,074 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-14 22:48:52,074 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-14 22:48:52,075 INFO L229 MonitoredProcess]: Starting monitored process 39 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-14 22:48:52,076 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Waiting until timeout for monitored process [2025-03-14 22:48:52,153 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2025-03-14 22:48:52,153 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2025-03-14 22:48:52,154 INFO L256 TraceCheckSpWp]: Trace formula consists of 394 conjuncts, 29 conjuncts are in the unsatisfiable core [2025-03-14 22:48:52,156 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-14 22:48:52,264 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2025-03-14 22:48:52,299 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2025-03-14 22:48:52,300 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-14 22:48:52,300 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1216068277] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 22:48:52,300 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-14 22:48:52,300 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [18] total 21 [2025-03-14 22:48:52,300 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [238854833] [2025-03-14 22:48:52,300 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 22:48:52,300 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-03-14 22:48:52,300 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 22:48:52,300 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-03-14 22:48:52,300 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=366, Unknown=0, NotChecked=0, Total=420 [2025-03-14 22:48:52,301 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 121 out of 199 [2025-03-14 22:48:52,301 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1126 places, 5785 transitions, 546611 flow. Second operand has 10 states, 10 states have (on average 126.8) internal successors, (1268), 10 states have internal predecessors, (1268), 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) [2025-03-14 22:48:52,301 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 22:48:52,301 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 121 of 199 [2025-03-14 22:48:52,301 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 22:49:30,395 INFO L124 PetriNetUnfolderBase]: 6496/16312 cut-off events. [2025-03-14 22:49:30,395 INFO L125 PetriNetUnfolderBase]: For 1884827/1906250 co-relation queries the response was YES. [2025-03-14 22:49:30,422 INFO L83 FinitePrefix]: Finished finitePrefix Result has 505706 conditions, 16312 events. 6496/16312 cut-off events. For 1884827/1906250 co-relation queries the response was YES. Maximal size of possible extension queue 1078. Compared 171462 event pairs, 158 based on Foata normal form. 300/15319 useless extension candidates. Maximal degree in co-relation 466872. Up to 9908 conditions per place. [2025-03-14 22:49:30,842 INFO L140 encePairwiseOnDemand]: 184/199 looper letters, 4677 selfloop transitions, 281 changer transitions 789/5865 dead transitions. [2025-03-14 22:49:30,842 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1141 places, 5865 transitions, 565779 flow [2025-03-14 22:49:30,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2025-03-14 22:49:30,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2025-03-14 22:49:30,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 2110 transitions. [2025-03-14 22:49:30,843 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.6626884422110553 [2025-03-14 22:49:30,843 INFO L298 CegarLoopForPetriNet]: 197 programPoint places, 944 predicate places. [2025-03-14 22:49:30,843 INFO L471 AbstractCegarLoop]: Abstraction has has 1141 places, 5865 transitions, 565779 flow [2025-03-14 22:49:30,844 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 126.8) internal successors, (1268), 10 states have internal predecessors, (1268), 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) [2025-03-14 22:49:30,844 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-14 22:49:30,844 INFO L221 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-14 22:49:30,849 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Ended with exit code 0 [2025-03-14 22:49:31,044 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable47 [2025-03-14 22:49:31,044 INFO L396 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err5INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2025-03-14 22:49:31,045 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 22:49:31,045 INFO L85 PathProgramCache]: Analyzing trace with hash 2029884091, now seen corresponding path program 6 times [2025-03-14 22:49:31,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 22:49:31,045 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1267773424] [2025-03-14 22:49:31,045 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-03-14 22:49:31,046 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 22:49:31,057 INFO L229 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) [2025-03-14 22:49:31,057 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2025-03-14 22:49:31,584 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-14 22:49:31,584 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 22:49:31,584 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1267773424] [2025-03-14 22:49:31,584 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1267773424] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-14 22:49:31,584 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1468396486] [2025-03-14 22:49:31,584 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-03-14 22:49:31,584 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-14 22:49:31,584 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-14 22:49:31,586 INFO L229 MonitoredProcess]: Starting monitored process 40 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-14 22:49:31,587 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Waiting until timeout for monitored process [2025-03-14 22:49:31,666 INFO L229 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) [2025-03-14 22:49:31,666 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2025-03-14 22:49:31,667 INFO L256 TraceCheckSpWp]: Trace formula consists of 394 conjuncts, 55 conjuncts are in the unsatisfiable core [2025-03-14 22:49:31,669 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-14 22:49:31,694 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2025-03-14 22:49:31,834 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2025-03-14 22:49:31,878 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-14 22:49:31,878 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-14 22:49:31,985 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2025-03-14 22:49:31,985 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1468396486] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-14 22:49:31,985 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-14 22:49:31,985 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 18, 10] total 28 [2025-03-14 22:49:31,986 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1001515027] [2025-03-14 22:49:31,986 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-14 22:49:31,986 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2025-03-14 22:49:31,986 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 22:49:31,986 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2025-03-14 22:49:31,987 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=679, Unknown=0, NotChecked=0, Total=756 [2025-03-14 22:49:31,987 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 100 out of 199 [2025-03-14 22:49:31,988 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1141 places, 5865 transitions, 565779 flow. Second operand has 28 states, 28 states have (on average 104.32142857142857) internal successors, (2921), 28 states have internal predecessors, (2921), 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) [2025-03-14 22:49:31,988 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 22:49:31,988 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 100 of 199 [2025-03-14 22:49:31,988 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 22:50:11,069 INFO L124 PetriNetUnfolderBase]: 6539/16088 cut-off events. [2025-03-14 22:50:11,070 INFO L125 PetriNetUnfolderBase]: For 1822426/1838599 co-relation queries the response was YES. [2025-03-14 22:50:11,097 INFO L83 FinitePrefix]: Finished finitePrefix Result has 518800 conditions, 16088 events. 6539/16088 cut-off events. For 1822426/1838599 co-relation queries the response was YES. Maximal size of possible extension queue 1073. Compared 167126 event pairs, 154 based on Foata normal form. 202/15055 useless extension candidates. Maximal degree in co-relation 472228. Up to 9974 conditions per place. [2025-03-14 22:50:11,529 INFO L140 encePairwiseOnDemand]: 169/199 looper letters, 4708 selfloop transitions, 303 changer transitions 803/5905 dead transitions. [2025-03-14 22:50:11,529 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1173 places, 5905 transitions, 581383 flow [2025-03-14 22:50:11,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2025-03-14 22:50:11,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2025-03-14 22:50:11,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 3531 transitions. [2025-03-14 22:50:11,531 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.5376884422110553 [2025-03-14 22:50:11,531 INFO L298 CegarLoopForPetriNet]: 197 programPoint places, 976 predicate places. [2025-03-14 22:50:11,532 INFO L471 AbstractCegarLoop]: Abstraction has has 1173 places, 5905 transitions, 581383 flow [2025-03-14 22:50:11,532 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 104.32142857142857) internal successors, (2921), 28 states have internal predecessors, (2921), 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) [2025-03-14 22:50:11,532 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-14 22:50:11,532 INFO L221 CegarLoopForPetriNet]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-14 22:50:11,538 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Ended with exit code 0 [2025-03-14 22:50:11,732 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 40 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable48 [2025-03-14 22:50:11,733 INFO L396 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err5INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2025-03-14 22:50:11,734 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 22:50:11,734 INFO L85 PathProgramCache]: Analyzing trace with hash 1039372626, now seen corresponding path program 2 times [2025-03-14 22:50:11,734 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 22:50:11,734 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1895355834] [2025-03-14 22:50:11,734 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-14 22:50:11,734 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 22:50:11,745 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-14 22:50:11,746 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2025-03-14 22:50:11,806 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2025-03-14 22:50:11,806 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 22:50:11,806 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1895355834] [2025-03-14 22:50:11,806 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1895355834] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-14 22:50:11,806 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [437891733] [2025-03-14 22:50:11,806 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-14 22:50:11,806 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-14 22:50:11,806 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-14 22:50:11,808 INFO L229 MonitoredProcess]: Starting monitored process 41 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-14 22:50:11,809 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Waiting until timeout for monitored process [2025-03-14 22:50:11,888 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-14 22:50:11,889 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2025-03-14 22:50:11,890 INFO L256 TraceCheckSpWp]: Trace formula consists of 411 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-03-14 22:50:11,892 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-14 22:50:11,963 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 5 proven. 6 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2025-03-14 22:50:11,963 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-14 22:50:12,009 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 5 proven. 6 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2025-03-14 22:50:12,009 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [437891733] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-14 22:50:12,009 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-14 22:50:12,009 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 15 [2025-03-14 22:50:12,009 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [361065038] [2025-03-14 22:50:12,009 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-14 22:50:12,010 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2025-03-14 22:50:12,010 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 22:50:12,010 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2025-03-14 22:50:12,010 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=153, Unknown=0, NotChecked=0, Total=210 [2025-03-14 22:50:12,011 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 158 out of 199 [2025-03-14 22:50:12,011 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1173 places, 5905 transitions, 581383 flow. Second operand has 15 states, 15 states have (on average 161.0) internal successors, (2415), 15 states have internal predecessors, (2415), 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) [2025-03-14 22:50:12,011 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 22:50:12,011 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 158 of 199 [2025-03-14 22:50:12,012 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 22:50:58,354 INFO L124 PetriNetUnfolderBase]: 7663/19730 cut-off events. [2025-03-14 22:50:58,354 INFO L125 PetriNetUnfolderBase]: For 2557707/2578536 co-relation queries the response was YES. [2025-03-14 22:50:58,398 INFO L83 FinitePrefix]: Finished finitePrefix Result has 624159 conditions, 19730 events. 7663/19730 cut-off events. For 2557707/2578536 co-relation queries the response was YES. Maximal size of possible extension queue 1165. Compared 212728 event pairs, 143 based on Foata normal form. 386/18524 useless extension candidates. Maximal degree in co-relation 572294. Up to 11759 conditions per place. [2025-03-14 22:50:59,118 INFO L140 encePairwiseOnDemand]: 188/199 looper letters, 5216 selfloop transitions, 297 changer transitions 910/6594 dead transitions. [2025-03-14 22:50:59,118 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1185 places, 6594 transitions, 663312 flow [2025-03-14 22:50:59,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-03-14 22:50:59,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2025-03-14 22:50:59,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 2215 transitions. [2025-03-14 22:50:59,119 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.8562040974101276 [2025-03-14 22:50:59,120 INFO L298 CegarLoopForPetriNet]: 197 programPoint places, 988 predicate places. [2025-03-14 22:50:59,120 INFO L471 AbstractCegarLoop]: Abstraction has has 1185 places, 6594 transitions, 663312 flow [2025-03-14 22:50:59,120 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 161.0) internal successors, (2415), 15 states have internal predecessors, (2415), 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) [2025-03-14 22:50:59,120 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-14 22:50:59,120 INFO L221 CegarLoopForPetriNet]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-14 22:50:59,126 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Ended with exit code 0 [2025-03-14 22:50:59,320 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 41 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable49 [2025-03-14 22:50:59,321 INFO L396 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err5INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2025-03-14 22:50:59,322 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 22:50:59,322 INFO L85 PathProgramCache]: Analyzing trace with hash 964915666, now seen corresponding path program 3 times [2025-03-14 22:50:59,322 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 22:50:59,322 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1838237758] [2025-03-14 22:50:59,322 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-14 22:50:59,322 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 22:50:59,334 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2025-03-14 22:50:59,335 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2025-03-14 22:50:59,387 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2025-03-14 22:50:59,388 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 22:50:59,388 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1838237758] [2025-03-14 22:50:59,388 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1838237758] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-14 22:50:59,388 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [155245994] [2025-03-14 22:50:59,388 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-14 22:50:59,388 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-14 22:50:59,388 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-14 22:50:59,390 INFO L229 MonitoredProcess]: Starting monitored process 42 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-14 22:50:59,390 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Waiting until timeout for monitored process [2025-03-14 22:50:59,479 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2025-03-14 22:50:59,479 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2025-03-14 22:50:59,480 INFO L256 TraceCheckSpWp]: Trace formula consists of 411 conjuncts, 11 conjuncts are in the unsatisfiable core [2025-03-14 22:50:59,481 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-14 22:50:59,652 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 11 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-14 22:50:59,653 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-14 22:50:59,816 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 11 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-14 22:50:59,816 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [155245994] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-14 22:50:59,817 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-14 22:50:59,817 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 12, 12] total 26 [2025-03-14 22:50:59,817 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [357074032] [2025-03-14 22:50:59,817 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-14 22:50:59,817 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2025-03-14 22:50:59,817 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 22:50:59,817 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2025-03-14 22:50:59,818 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=109, Invalid=541, Unknown=0, NotChecked=0, Total=650 [2025-03-14 22:50:59,818 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 143 out of 199 [2025-03-14 22:50:59,819 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1185 places, 6594 transitions, 663312 flow. Second operand has 26 states, 26 states have (on average 146.80769230769232) internal successors, (3817), 26 states have internal predecessors, (3817), 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) [2025-03-14 22:50:59,819 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 22:50:59,819 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 143 of 199 [2025-03-14 22:50:59,819 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 22:52:32,672 INFO L124 PetriNetUnfolderBase]: 12304/33358 cut-off events. [2025-03-14 22:52:32,672 INFO L125 PetriNetUnfolderBase]: For 4541049/4578974 co-relation queries the response was YES. [2025-03-14 22:52:32,759 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1054917 conditions, 33358 events. 12304/33358 cut-off events. For 4541049/4578974 co-relation queries the response was YES. Maximal size of possible extension queue 1885. Compared 402983 event pairs, 192 based on Foata normal form. 1036/31733 useless extension candidates. Maximal degree in co-relation 630385. Up to 19458 conditions per place. [2025-03-14 22:52:33,752 INFO L140 encePairwiseOnDemand]: 175/199 looper letters, 7877 selfloop transitions, 869 changer transitions 2557/11450 dead transitions. [2025-03-14 22:52:33,752 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1225 places, 11450 transitions, 1184784 flow [2025-03-14 22:52:33,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2025-03-14 22:52:33,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2025-03-14 22:52:33,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 6169 transitions. [2025-03-14 22:52:33,754 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.7560975609756098 [2025-03-14 22:52:33,755 INFO L298 CegarLoopForPetriNet]: 197 programPoint places, 1028 predicate places. [2025-03-14 22:52:33,755 INFO L471 AbstractCegarLoop]: Abstraction has has 1225 places, 11450 transitions, 1184784 flow [2025-03-14 22:52:33,755 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 146.80769230769232) internal successors, (3817), 26 states have internal predecessors, (3817), 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) [2025-03-14 22:52:33,755 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-14 22:52:33,755 INFO L221 CegarLoopForPetriNet]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-14 22:52:33,762 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Ended with exit code 0 [2025-03-14 22:52:33,959 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50,42 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-14 22:52:33,959 INFO L396 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err5INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2025-03-14 22:52:33,960 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 22:52:33,960 INFO L85 PathProgramCache]: Analyzing trace with hash 134868061, now seen corresponding path program 9 times [2025-03-14 22:52:33,960 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 22:52:33,960 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [54713297] [2025-03-14 22:52:33,960 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-14 22:52:33,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 22:52:33,972 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2025-03-14 22:52:33,973 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2025-03-14 22:52:34,024 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2025-03-14 22:52:34,025 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 22:52:34,025 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [54713297] [2025-03-14 22:52:34,025 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [54713297] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-14 22:52:34,025 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1509280912] [2025-03-14 22:52:34,025 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-14 22:52:34,025 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-14 22:52:34,025 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-14 22:52:34,026 INFO L229 MonitoredProcess]: Starting monitored process 43 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-14 22:52:34,027 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Waiting until timeout for monitored process [2025-03-14 22:52:34,111 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2025-03-14 22:52:34,111 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2025-03-14 22:52:34,112 INFO L256 TraceCheckSpWp]: Trace formula consists of 411 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-03-14 22:52:34,113 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-14 22:52:34,160 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 5 proven. 6 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2025-03-14 22:52:34,160 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-14 22:52:34,201 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 5 proven. 6 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2025-03-14 22:52:34,201 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1509280912] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-14 22:52:34,201 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-14 22:52:34,201 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 11 [2025-03-14 22:52:34,201 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [362939236] [2025-03-14 22:52:34,201 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-14 22:52:34,201 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2025-03-14 22:52:34,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 22:52:34,202 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2025-03-14 22:52:34,202 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2025-03-14 22:52:34,202 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 158 out of 199 [2025-03-14 22:52:34,203 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1225 places, 11450 transitions, 1184784 flow. Second operand has 11 states, 11 states have (on average 161.45454545454547) internal successors, (1776), 11 states have internal predecessors, (1776), 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) [2025-03-14 22:52:34,203 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 22:52:34,203 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 158 of 199 [2025-03-14 22:52:34,203 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand Received shutdown request... [2025-03-14 22:53:43,662 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2025-03-14 22:53:43,662 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2025-03-14 22:53:43,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-14 22:53:43,690 INFO L782 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (6 of 7 remaining) [2025-03-14 22:53:43,697 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Ended with exit code 0 [2025-03-14 22:53:43,890 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51,43 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-14 22:53:43,891 WARN L596 AbstractCegarLoop]: Verification canceled: while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (11states, 158/199 universal loopers) in iteration 52,while PetriNetUnfolder was constructing finite prefix that currently has 462264 conditions, 14635 events (5259/14634 cut-off events. For 2058140/2086730 co-relation queries the response was YES. Maximal size of possible extension queue 1969. Compared 183373 event pairs, 82 based on Foata normal form. 125/15693 useless extension candidates. Maximal degree in co-relation 283731. Up to 8498 conditions per place.). [2025-03-14 22:53:43,893 INFO L782 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 7 remaining) [2025-03-14 22:53:43,894 INFO L782 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err5INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 7 remaining) [2025-03-14 22:53:43,894 INFO L782 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 7 remaining) [2025-03-14 22:53:43,894 INFO L782 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr4INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 7 remaining) [2025-03-14 22:53:43,894 INFO L782 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Thread1of1ForFork1Err0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 7 remaining) [2025-03-14 22:53:43,894 INFO L782 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Thread1of1ForFork1Err1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 7 remaining) [2025-03-14 22:53:43,894 INFO L422 BasicCegarLoop]: Path program histogram: [9, 8, 6, 5, 5, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1] [2025-03-14 22:53:43,905 INFO L328 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-03-14 22:53:43,906 INFO L188 ceAbstractionStarter]: Computing trace abstraction results [2025-03-14 22:53:43,918 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.03 10:53:43 BasicIcfg [2025-03-14 22:53:43,918 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-03-14 22:53:43,919 INFO L158 Benchmark]: Toolchain (without parser) took 824831.78ms. Allocated memory was 71.3MB in the beginning and 3.2GB in the end (delta: 3.1GB). Free memory was 44.8MB in the beginning and 1.2GB in the end (delta: -1.1GB). Peak memory consumption was 3.5GB. Max. memory is 8.0GB. [2025-03-14 22:53:43,919 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 71.3MB. Free memory is still 33.2MB. There was no memory consumed. Max. memory is 8.0GB. [2025-03-14 22:53:43,919 INFO L158 Benchmark]: CACSL2BoogieTranslator took 180.30ms. Allocated memory is still 71.3MB. Free memory was 44.7MB in the beginning and 32.0MB in the end (delta: 12.7MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. [2025-03-14 22:53:43,919 INFO L158 Benchmark]: Boogie Procedure Inliner took 42.48ms. Allocated memory is still 71.3MB. Free memory was 32.0MB in the beginning and 29.9MB in the end (delta: 2.1MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2025-03-14 22:53:43,919 INFO L158 Benchmark]: Boogie Preprocessor took 33.51ms. Allocated memory is still 71.3MB. Free memory was 29.9MB in the beginning and 28.4MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 8.0GB. [2025-03-14 22:53:43,919 INFO L158 Benchmark]: RCFGBuilder took 632.99ms. Allocated memory is still 71.3MB. Free memory was 28.4MB in the beginning and 38.1MB in the end (delta: -9.8MB). Peak memory consumption was 23.8MB. Max. memory is 8.0GB. [2025-03-14 22:53:43,920 INFO L158 Benchmark]: TraceAbstraction took 823937.60ms. Allocated memory was 71.3MB in the beginning and 3.2GB in the end (delta: 3.1GB). Free memory was 36.9MB in the beginning and 1.2GB in the end (delta: -1.2GB). Peak memory consumption was 3.4GB. Max. memory is 8.0GB. [2025-03-14 22:53:43,921 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 71.3MB. Free memory is still 33.2MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 180.30ms. Allocated memory is still 71.3MB. Free memory was 44.7MB in the beginning and 32.0MB in the end (delta: 12.7MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 42.48ms. Allocated memory is still 71.3MB. Free memory was 32.0MB in the beginning and 29.9MB in the end (delta: 2.1MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * Boogie Preprocessor took 33.51ms. Allocated memory is still 71.3MB. Free memory was 29.9MB in the beginning and 28.4MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 8.0GB. * RCFGBuilder took 632.99ms. Allocated memory is still 71.3MB. Free memory was 28.4MB in the beginning and 38.1MB in the end (delta: -9.8MB). Peak memory consumption was 23.8MB. Max. memory is 8.0GB. * TraceAbstraction took 823937.60ms. Allocated memory was 71.3MB in the beginning and 3.2GB in the end (delta: 3.1GB). Free memory was 36.9MB in the beginning and 1.2GB in the end (delta: -1.2GB). Peak memory consumption was 3.4GB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 144]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (11states, 158/199 universal loopers) in iteration 52,while PetriNetUnfolder was constructing finite prefix that currently has 462264 conditions, 14635 events (5259/14634 cut-off events. For 2058140/2086730 co-relation queries the response was YES. Maximal size of possible extension queue 1969. Compared 183373 event pairs, 82 based on Foata normal form. 125/15693 useless extension candidates. Maximal degree in co-relation 283731. Up to 8498 conditions per place.). - TimeoutResultAtElement [Line: 92]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message) Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (11states, 158/199 universal loopers) in iteration 52,while PetriNetUnfolder was constructing finite prefix that currently has 462264 conditions, 14635 events (5259/14634 cut-off events. For 2058140/2086730 co-relation queries the response was YES. Maximal size of possible extension queue 1969. Compared 183373 event pairs, 82 based on Foata normal form. 125/15693 useless extension candidates. Maximal degree in co-relation 283731. Up to 8498 conditions per place.). - TimeoutResultAtElement [Line: 91]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message) Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (11states, 158/199 universal loopers) in iteration 52,while PetriNetUnfolder was constructing finite prefix that currently has 462264 conditions, 14635 events (5259/14634 cut-off events. For 2058140/2086730 co-relation queries the response was YES. Maximal size of possible extension queue 1969. Compared 183373 event pairs, 82 based on Foata normal form. 125/15693 useless extension candidates. Maximal degree in co-relation 283731. Up to 8498 conditions per place.). - TimeoutResultAtElement [Line: 139]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message) Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (11states, 158/199 universal loopers) in iteration 52,while PetriNetUnfolder was constructing finite prefix that currently has 462264 conditions, 14635 events (5259/14634 cut-off events. For 2058140/2086730 co-relation queries the response was YES. Maximal size of possible extension queue 1969. Compared 183373 event pairs, 82 based on Foata normal form. 125/15693 useless extension candidates. Maximal degree in co-relation 283731. Up to 8498 conditions per place.). - TimeoutResultAtElement [Line: 138]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message) Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (11states, 158/199 universal loopers) in iteration 52,while PetriNetUnfolder was constructing finite prefix that currently has 462264 conditions, 14635 events (5259/14634 cut-off events. For 2058140/2086730 co-relation queries the response was YES. Maximal size of possible extension queue 1969. Compared 183373 event pairs, 82 based on Foata normal form. 125/15693 useless extension candidates. Maximal degree in co-relation 283731. Up to 8498 conditions per place.). - TimeoutResultAtElement [Line: 91]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message) Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (11states, 158/199 universal loopers) in iteration 52,while PetriNetUnfolder was constructing finite prefix that currently has 462264 conditions, 14635 events (5259/14634 cut-off events. For 2058140/2086730 co-relation queries the response was YES. Maximal size of possible extension queue 1969. Compared 183373 event pairs, 82 based on Foata normal form. 125/15693 useless extension candidates. Maximal degree in co-relation 283731. Up to 8498 conditions per place.). - TimeoutResultAtElement [Line: 92]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message) Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (11states, 158/199 universal loopers) in iteration 52,while PetriNetUnfolder was constructing finite prefix that currently has 462264 conditions, 14635 events (5259/14634 cut-off events. For 2058140/2086730 co-relation queries the response was YES. Maximal size of possible extension queue 1969. Compared 183373 event pairs, 82 based on Foata normal form. 125/15693 useless extension candidates. Maximal degree in co-relation 283731. Up to 8498 conditions per place.). - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 9 procedures, 245 locations, 7 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.1s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 823.8s, OverallIterations: 52, TraceHistogramMax: 3, PathProgramHistogramMax: 9, EmptinessCheckTime: 0.0s, AutomataDifference: 782.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 8679 SdHoareTripleChecker+Valid, 17.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 8679 mSDsluCounter, 23522 SdHoareTripleChecker+Invalid, 14.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 21366 mSDsCounter, 473 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 53332 IncrementalHoareTripleChecker+Invalid, 53805 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 473 mSolverCounterUnsat, 2156 mSDtfsCounter, 53332 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 14682 GetRequests, 12934 SyntacticMatches, 11 SemanticMatches, 1737 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16473 ImplicationChecksByTransitivity, 14.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1184784occurred in iteration=51, InterpolantAutomatonStates: 1092, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.7s SsaConstructionTime, 1.7s SatisfiabilityAnalysisTime, 28.5s InterpolantComputationTime, 16645 NumberOfCodeBlocks, 16469 NumberOfCodeBlocksAsserted, 174 NumberOfCheckSat, 22225 ConstructedInterpolants, 0 QuantifiedInterpolants, 80916 SizeOfPredicates, 623 NumberOfNonLiveVariables, 16419 ConjunctsInSsa, 1358 ConjunctsInUnsatCore, 126 InterpolantComputations, 23 PerfectInterpolantSequences, 808/1444 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown